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gtk2/gtk/gtktreeview.c
Tristan Van Berkom 3fe0fb4ed9 Added GtkScrollablePolicy property to scrollable interface 
This patch adds the GtkScrollablePolicy type property to GtkScrollable
and implements it in all subclasses. GtkScrolledWindow observes this
property to make a good guess about when to show/hide scrollbars for
height-for-width content.

Most scrollable children do not do height-for-width *yet* but
most certainly will (toolpalette, treeview, iconview, textview
widgets all TODO), for scrollable widgets that do have a minimum
and natural size, it's important for them to observe the state
of this property in order to properly drive the scroll adjustments
according to the desired GtkScrollablePolicy. This patch makes
GtkViewport do this.

Patch also adds tests/testscrolledwindow.c to display the effects
of this property.
2010-10-26 10:15:56 +09:00

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/* gtktreeview.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <math.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include "gtktreeview.h"
#include "gtkrbtree.h"
#include "gtktreednd.h"
#include "gtktreeprivate.h"
#include "gtkcellrenderer.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkbuildable.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
#include "gtkhbox.h"
#include "gtkvbox.h"
#include "gtkarrow.h"
#include "gtkintl.h"
#include "gtkbindings.h"
#include "gtkcontainer.h"
#include "gtkentry.h"
#include "gtkframe.h"
#include "gtktreemodelsort.h"
#include "gtktooltip.h"
#include "gtkscrollable.h"
#include "gtkprivate.h"
#include "gtkwidgetprivate.h"
#define GTK_TREE_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
#define GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC (GTK_TREE_VIEW_PRIORITY_VALIDATE + 2)
#define GTK_TREE_VIEW_TIME_MS_PER_IDLE 30
#define SCROLL_EDGE_SIZE 15
#define EXPANDER_EXTRA_PADDING 4
#define GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT 5000
#define AUTO_EXPAND_TIMEOUT 500
/* The "background" areas of all rows/cells add up to cover the entire tree.
* The background includes all inter-row and inter-cell spacing.
* The "cell" areas are the cell_area passed in to gtk_cell_renderer_render(),
* i.e. just the cells, no spacing.
*/
#define BACKGROUND_HEIGHT(node) (GTK_RBNODE_GET_HEIGHT (node))
#define CELL_HEIGHT(node, separator) ((BACKGROUND_HEIGHT (node)) - (separator))
/* Translate from bin_window coordinates to rbtree (tree coordinates) and
* vice versa.
*/
#define TREE_WINDOW_Y_TO_RBTREE_Y(tree_view,y) ((y) + tree_view->priv->dy)
#define RBTREE_Y_TO_TREE_WINDOW_Y(tree_view,y) ((y) - tree_view->priv->dy)
/* This is in bin_window coordinates */
#define BACKGROUND_FIRST_PIXEL(tree_view,tree,node) (RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, _gtk_rbtree_node_find_offset ((tree), (node))))
#define CELL_FIRST_PIXEL(tree_view,tree,node,separator) (BACKGROUND_FIRST_PIXEL (tree_view,tree,node) + separator/2)
#define ROW_HEIGHT(tree_view,height) \
((height > 0) ? (height) : (tree_view)->priv->expander_size)
typedef struct _GtkTreeViewChild GtkTreeViewChild;
struct _GtkTreeViewChild
{
GtkWidget *widget;
gint x;
gint y;
gint width;
gint height;
};
typedef struct _TreeViewDragInfo TreeViewDragInfo;
struct _TreeViewDragInfo
{
GdkModifierType start_button_mask;
GtkTargetList *_unused_source_target_list;
GdkDragAction source_actions;
GtkTargetList *_unused_dest_target_list;
guint source_set : 1;
guint dest_set : 1;
};
/* Signals */
enum
{
ROW_ACTIVATED,
TEST_EXPAND_ROW,
TEST_COLLAPSE_ROW,
ROW_EXPANDED,
ROW_COLLAPSED,
COLUMNS_CHANGED,
CURSOR_CHANGED,
MOVE_CURSOR,
SELECT_ALL,
UNSELECT_ALL,
SELECT_CURSOR_ROW,
TOGGLE_CURSOR_ROW,
EXPAND_COLLAPSE_CURSOR_ROW,
SELECT_CURSOR_PARENT,
START_INTERACTIVE_SEARCH,
LAST_SIGNAL
};
/* Properties */
enum {
PROP_0,
PROP_MODEL,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_VSCROLL_POLICY,
PROP_HEADERS_VISIBLE,
PROP_HEADERS_CLICKABLE,
PROP_EXPANDER_COLUMN,
PROP_REORDERABLE,
PROP_RULES_HINT,
PROP_ENABLE_SEARCH,
PROP_SEARCH_COLUMN,
PROP_FIXED_HEIGHT_MODE,
PROP_HOVER_SELECTION,
PROP_HOVER_EXPAND,
PROP_SHOW_EXPANDERS,
PROP_LEVEL_INDENTATION,
PROP_RUBBER_BANDING,
PROP_ENABLE_GRID_LINES,
PROP_ENABLE_TREE_LINES,
PROP_TOOLTIP_COLUMN
};
/* object signals */
static void gtk_tree_view_finalize (GObject *object);
static void gtk_tree_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_tree_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
/* gtkwidget signals */
static void gtk_tree_view_destroy (GtkWidget *widget);
static void gtk_tree_view_realize (GtkWidget *widget);
static void gtk_tree_view_unrealize (GtkWidget *widget);
static void gtk_tree_view_map (GtkWidget *widget);
static void gtk_tree_view_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void gtk_tree_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static gboolean gtk_tree_view_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean gtk_tree_view_key_press (GtkWidget *widget,
GdkEventKey *event);
static gboolean gtk_tree_view_key_release (GtkWidget *widget,
GdkEventKey *event);
static gboolean gtk_tree_view_motion (GtkWidget *widget,
GdkEventMotion *event);
static gboolean gtk_tree_view_enter_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_tree_view_leave_notify (GtkWidget *widget,
GdkEventCrossing *event);
static gboolean gtk_tree_view_button_press (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_tree_view_button_release (GtkWidget *widget,
GdkEventButton *event);
static gboolean gtk_tree_view_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event);
#if 0
static gboolean gtk_tree_view_configure (GtkWidget *widget,
GdkEventConfigure *event);
#endif
static void gtk_tree_view_set_focus_child (GtkContainer *container,
GtkWidget *child);
static gint gtk_tree_view_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_tree_view_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_tree_view_grab_focus (GtkWidget *widget);
static void gtk_tree_view_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void gtk_tree_view_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_tree_view_state_changed (GtkWidget *widget,
GtkStateType previous_state);
/* container signals */
static void gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget);
static void gtk_tree_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
/* Source side drag signals */
static void gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDragContext *context);
static void gtk_tree_view_drag_end (GtkWidget *widget,
GdkDragContext *context);
static void gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time);
static void gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context);
/* Target side drag signals */
static void gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static void gtk_tree_view_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time);
/* tree_model signals */
static void gtk_tree_view_set_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment);
static void gtk_tree_view_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment);
static gboolean gtk_tree_view_real_move_cursor (GtkTreeView *tree_view,
GtkMovementStep step,
gint count);
static gboolean gtk_tree_view_real_select_all (GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_unselect_all (GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
gboolean start_editing);
static gboolean gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
gboolean logical,
gboolean expand,
gboolean open_all);
static gboolean gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view);
static void gtk_tree_view_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data);
static void gtk_tree_view_rows_reordered (GtkTreeModel *model,
GtkTreePath *parent,
GtkTreeIter *iter,
gint *new_order,
gpointer data);
/* Incremental reflow */
static gboolean validate_row (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
GtkTreeIter *iter,
GtkTreePath *path);
static void validate_visible_area (GtkTreeView *tree_view);
static gboolean validate_rows_handler (GtkTreeView *tree_view);
static gboolean do_validate_rows (GtkTreeView *tree_view,
gboolean size_request);
static gboolean validate_rows (GtkTreeView *tree_view);
static gboolean presize_handler_callback (gpointer data);
static void install_presize_handler (GtkTreeView *tree_view);
static void install_scroll_sync_handler (GtkTreeView *tree_view);
static void gtk_tree_view_set_top_row (GtkTreeView *tree_view,
GtkTreePath *path,
gint offset);
static void gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view);
static void gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view);
static void invalidate_empty_focus (GtkTreeView *tree_view);
/* Internal functions */
static gboolean gtk_tree_view_is_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column);
static void gtk_tree_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
gboolean add_shifted_binding,
GtkMovementStep step,
gint count);
static gint gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
GtkRBTree *tree);
static void gtk_tree_view_queue_draw_path (GtkTreeView *tree_view,
GtkTreePath *path,
const GdkRectangle *clip_rect);
static void gtk_tree_view_queue_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
static void gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
cairo_t *cr,
GtkRBTree *tree,
GtkRBNode *node,
gint x,
gint y);
static void gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
GtkRBTree *tree,
gint *x1,
gint *x2);
static gint gtk_tree_view_new_column_width (GtkTreeView *tree_view,
gint i,
gint *x);
static void gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view);
static void gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse);
static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
static void gtk_tree_view_clamp_column_visible (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gboolean focus_to_cell);
static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view,
GdkEventMotion *event);
static void gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view);
static void gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
gint count);
static void gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
gint count);
static void gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
gint count);
static void gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
gint count);
static gboolean gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree *tree,
GtkRBNode *node,
gboolean animate);
static gboolean gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree *tree,
GtkRBNode *node,
gboolean open_all,
gboolean animate);
static void gtk_tree_view_real_set_cursor (GtkTreeView *tree_view,
GtkTreePath *path,
gboolean clear_and_select,
gboolean clamp_node);
static gboolean gtk_tree_view_has_special_cell (GtkTreeView *tree_view);
static void column_sizing_notify (GObject *object,
GParamSpec *pspec,
gpointer data);
static gboolean expand_collapse_timeout (gpointer data);
static void add_expand_collapse_timeout (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gboolean expand);
static void remove_expand_collapse_timeout (GtkTreeView *tree_view);
static void cancel_arrow_animation (GtkTreeView *tree_view);
static gboolean do_expand_collapse (GtkTreeView *tree_view);
static void gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view);
static void update_prelight (GtkTreeView *tree_view,
int x,
int y);
/* interactive search */
static void gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view);
static void gtk_tree_view_search_dialog_hide (GtkWidget *search_dialog,
GtkTreeView *tree_view,
GdkDevice *device);
static void gtk_tree_view_search_position_func (GtkTreeView *tree_view,
GtkWidget *search_dialog,
gpointer user_data);
static void gtk_tree_view_search_disable_popdown (GtkEntry *entry,
GtkMenu *menu,
gpointer data);
static void gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
GtkTreeView *tree_view);
static void gtk_tree_view_search_activate (GtkEntry *entry,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_real_search_enable_popdown(gpointer data);
static void gtk_tree_view_search_enable_popdown (GtkWidget *widget,
gpointer data);
static gboolean gtk_tree_view_search_delete_event (GtkWidget *widget,
GdkEventAny *event,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_button_press_event (GtkWidget *widget,
GdkEventButton *event,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_scroll_event (GtkWidget *entry,
GdkEventScroll *event,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_key_press_event (GtkWidget *entry,
GdkEventKey *event,
GtkTreeView *tree_view);
static gboolean gtk_tree_view_search_move (GtkWidget *window,
GtkTreeView *tree_view,
gboolean up);
static gboolean gtk_tree_view_search_equal_func (GtkTreeModel *model,
gint column,
const gchar *key,
GtkTreeIter *iter,
gpointer search_data);
static gboolean gtk_tree_view_search_iter (GtkTreeModel *model,
GtkTreeSelection *selection,
GtkTreeIter *iter,
const gchar *text,
gint *count,
gint n);
static void gtk_tree_view_search_init (GtkWidget *entry,
GtkTreeView *tree_view);
static void gtk_tree_view_put (GtkTreeView *tree_view,
GtkWidget *child_widget,
gint x,
gint y,
gint width,
gint height);
static gboolean gtk_tree_view_start_editing (GtkTreeView *tree_view,
GtkTreePath *cursor_path);
static void gtk_tree_view_real_start_editing (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GtkTreePath *path,
GtkCellEditable *cell_editable,
GdkRectangle *cell_area,
GdkEvent *event,
guint flags);
static void gtk_tree_view_stop_editing (GtkTreeView *tree_view,
gboolean cancel_editing);
static gboolean gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
GdkDevice *device,
gboolean keybinding);
static gboolean gtk_tree_view_start_interactive_search (GtkTreeView *tree_view);
static GtkTreeViewColumn *gtk_tree_view_get_drop_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint drop_position);
/* GtkBuildable */
static void gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
GtkBuilder *builder,
GObject *child,
const gchar *type);
static GObject *gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname);
static void gtk_tree_view_buildable_init (GtkBuildableIface *iface);
static gboolean scroll_row_timeout (gpointer data);
static void add_scroll_timeout (GtkTreeView *tree_view);
static void remove_scroll_timeout (GtkTreeView *tree_view);
static guint tree_view_signals [LAST_SIGNAL] = { 0 };
/* GType Methods
*/
G_DEFINE_TYPE_WITH_CODE (GtkTreeView, gtk_tree_view, GTK_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_tree_view_buildable_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SCROLLABLE, NULL))
static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
GObjectClass *o_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
GtkBindingSet *binding_set;
binding_set = gtk_binding_set_by_class (class);
o_class = (GObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
/* GObject signals */
o_class->set_property = gtk_tree_view_set_property;
o_class->get_property = gtk_tree_view_get_property;
o_class->finalize = gtk_tree_view_finalize;
/* GtkWidget signals */
widget_class->destroy = gtk_tree_view_destroy;
widget_class->map = gtk_tree_view_map;
widget_class->realize = gtk_tree_view_realize;
widget_class->unrealize = gtk_tree_view_unrealize;
widget_class->size_request = gtk_tree_view_size_request;
widget_class->size_allocate = gtk_tree_view_size_allocate;
widget_class->button_press_event = gtk_tree_view_button_press;
widget_class->button_release_event = gtk_tree_view_button_release;
widget_class->grab_broken_event = gtk_tree_view_grab_broken;
/*widget_class->configure_event = gtk_tree_view_configure;*/
widget_class->motion_notify_event = gtk_tree_view_motion;
widget_class->draw = gtk_tree_view_draw;
widget_class->key_press_event = gtk_tree_view_key_press;
widget_class->key_release_event = gtk_tree_view_key_release;
widget_class->enter_notify_event = gtk_tree_view_enter_notify;
widget_class->leave_notify_event = gtk_tree_view_leave_notify;
widget_class->focus_out_event = gtk_tree_view_focus_out;
widget_class->drag_begin = gtk_tree_view_drag_begin;
widget_class->drag_end = gtk_tree_view_drag_end;
widget_class->drag_data_get = gtk_tree_view_drag_data_get;
widget_class->drag_data_delete = gtk_tree_view_drag_data_delete;
widget_class->drag_leave = gtk_tree_view_drag_leave;
widget_class->drag_motion = gtk_tree_view_drag_motion;
widget_class->drag_drop = gtk_tree_view_drag_drop;
widget_class->drag_data_received = gtk_tree_view_drag_data_received;
widget_class->focus = gtk_tree_view_focus;
widget_class->grab_focus = gtk_tree_view_grab_focus;
widget_class->style_set = gtk_tree_view_style_set;
widget_class->grab_notify = gtk_tree_view_grab_notify;
widget_class->state_changed = gtk_tree_view_state_changed;
/* GtkContainer signals */
container_class->remove = gtk_tree_view_remove;
container_class->forall = gtk_tree_view_forall;
container_class->set_focus_child = gtk_tree_view_set_focus_child;
class->move_cursor = gtk_tree_view_real_move_cursor;
class->select_all = gtk_tree_view_real_select_all;
class->unselect_all = gtk_tree_view_real_unselect_all;
class->select_cursor_row = gtk_tree_view_real_select_cursor_row;
class->toggle_cursor_row = gtk_tree_view_real_toggle_cursor_row;
class->expand_collapse_cursor_row = gtk_tree_view_real_expand_collapse_cursor_row;
class->select_cursor_parent = gtk_tree_view_real_select_cursor_parent;
class->start_interactive_search = gtk_tree_view_start_interactive_search;
/* Properties */
g_object_class_install_property (o_class,
PROP_MODEL,
g_param_spec_object ("model",
P_("TreeView Model"),
P_("The model for the tree view"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE));
g_object_class_override_property (o_class, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property (o_class, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property (o_class, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property (o_class, PROP_VSCROLL_POLICY, "vscroll-policy");
g_object_class_install_property (o_class,
PROP_HEADERS_VISIBLE,
g_param_spec_boolean ("headers-visible",
P_("Headers Visible"),
P_("Show the column header buttons"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_HEADERS_CLICKABLE,
g_param_spec_boolean ("headers-clickable",
P_("Headers Clickable"),
P_("Column headers respond to click events"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_EXPANDER_COLUMN,
g_param_spec_object ("expander-column",
P_("Expander Column"),
P_("Set the column for the expander column"),
GTK_TYPE_TREE_VIEW_COLUMN,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_REORDERABLE,
g_param_spec_boolean ("reorderable",
P_("Reorderable"),
P_("View is reorderable"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_RULES_HINT,
g_param_spec_boolean ("rules-hint",
P_("Rules Hint"),
P_("Set a hint to the theme engine to draw rows in alternating colors"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_ENABLE_SEARCH,
g_param_spec_boolean ("enable-search",
P_("Enable Search"),
P_("View allows user to search through columns interactively"),
TRUE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_SEARCH_COLUMN,
g_param_spec_int ("search-column",
P_("Search Column"),
P_("Model column to search through during interactive search"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkTreeView:fixed-height-mode:
*
* Setting the ::fixed-height-mode property to %TRUE speeds up
* #GtkTreeView by assuming that all rows have the same height.
* Only enable this option if all rows are the same height.
* Please see gtk_tree_view_set_fixed_height_mode() for more
* information on this option.
*
* Since: 2.4
**/
g_object_class_install_property (o_class,
PROP_FIXED_HEIGHT_MODE,
g_param_spec_boolean ("fixed-height-mode",
P_("Fixed Height Mode"),
P_("Speeds up GtkTreeView by assuming that all rows have the same height"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkTreeView:hover-selection:
*
* Enables or disables the hover selection mode of @tree_view.
* Hover selection makes the selected row follow the pointer.
* Currently, this works only for the selection modes
* %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
*
* This mode is primarily intended for treeviews in popups, e.g.
* in #GtkComboBox or #GtkEntryCompletion.
*
* Since: 2.6
*/
g_object_class_install_property (o_class,
PROP_HOVER_SELECTION,
g_param_spec_boolean ("hover-selection",
P_("Hover Selection"),
P_("Whether the selection should follow the pointer"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkTreeView:hover-expand:
*
* Enables or disables the hover expansion mode of @tree_view.
* Hover expansion makes rows expand or collapse if the pointer moves
* over them.
*
* This mode is primarily intended for treeviews in popups, e.g.
* in #GtkComboBox or #GtkEntryCompletion.
*
* Since: 2.6
*/
g_object_class_install_property (o_class,
PROP_HOVER_EXPAND,
g_param_spec_boolean ("hover-expand",
P_("Hover Expand"),
P_("Whether rows should be expanded/collapsed when the pointer moves over them"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkTreeView:show-expanders:
*
* %TRUE if the view has expanders.
*
* Since: 2.12
*/
g_object_class_install_property (o_class,
PROP_SHOW_EXPANDERS,
g_param_spec_boolean ("show-expanders",
P_("Show Expanders"),
P_("View has expanders"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkTreeView:level-indentation:
*
* Extra indentation for each level.
*
* Since: 2.12
*/
g_object_class_install_property (o_class,
PROP_LEVEL_INDENTATION,
g_param_spec_int ("level-indentation",
P_("Level Indentation"),
P_("Extra indentation for each level"),
0,
G_MAXINT,
0,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_RUBBER_BANDING,
g_param_spec_boolean ("rubber-banding",
P_("Rubber Banding"),
P_("Whether to enable selection of multiple items by dragging the mouse pointer"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_ENABLE_GRID_LINES,
g_param_spec_enum ("enable-grid-lines",
P_("Enable Grid Lines"),
P_("Whether grid lines should be drawn in the tree view"),
GTK_TYPE_TREE_VIEW_GRID_LINES,
GTK_TREE_VIEW_GRID_LINES_NONE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_ENABLE_TREE_LINES,
g_param_spec_boolean ("enable-tree-lines",
P_("Enable Tree Lines"),
P_("Whether tree lines should be drawn in the tree view"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (o_class,
PROP_TOOLTIP_COLUMN,
g_param_spec_int ("tooltip-column",
P_("Tooltip Column"),
P_("The column in the model containing the tooltip texts for the rows"),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/* Style properties */
#define _TREE_VIEW_EXPANDER_SIZE 12
#define _TREE_VIEW_VERTICAL_SEPARATOR 2
#define _TREE_VIEW_HORIZONTAL_SEPARATOR 2
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("expander-size",
P_("Expander Size"),
P_("Size of the expander arrow"),
0,
G_MAXINT,
_TREE_VIEW_EXPANDER_SIZE,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("vertical-separator",
P_("Vertical Separator Width"),
P_("Vertical space between cells. Must be an even number"),
0,
G_MAXINT,
_TREE_VIEW_VERTICAL_SEPARATOR,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("horizontal-separator",
P_("Horizontal Separator Width"),
P_("Horizontal space between cells. Must be an even number"),
0,
G_MAXINT,
_TREE_VIEW_HORIZONTAL_SEPARATOR,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boolean ("allow-rules",
P_("Allow Rules"),
P_("Allow drawing of alternating color rows"),
TRUE,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boolean ("indent-expanders",
P_("Indent Expanders"),
P_("Make the expanders indented"),
TRUE,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boxed ("even-row-color",
P_("Even Row Color"),
P_("Color to use for even rows"),
GDK_TYPE_COLOR,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_boxed ("odd-row-color",
P_("Odd Row Color"),
P_("Color to use for odd rows"),
GDK_TYPE_COLOR,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("grid-line-width",
P_("Grid line width"),
P_("Width, in pixels, of the tree view grid lines"),
0, G_MAXINT, 1,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("tree-line-width",
P_("Tree line width"),
P_("Width, in pixels, of the tree view lines"),
0, G_MAXINT, 1,
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_string ("grid-line-pattern",
P_("Grid line pattern"),
P_("Dash pattern used to draw the tree view grid lines"),
"\1\1",
GTK_PARAM_READABLE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_string ("tree-line-pattern",
P_("Tree line pattern"),
P_("Dash pattern used to draw the tree view lines"),
"\1\1",
GTK_PARAM_READABLE));
/* Signals */
/**
* GtkTreeView::row-activated:
* @tree_view: the object on which the signal is emitted
* @path: the #GtkTreePath for the activated row
* @column: the #GtkTreeViewColumn in which the activation occurred
*
* The "row-activated" signal is emitted when the method
* gtk_tree_view_row_activated() is called or the user double clicks
* a treeview row. It is also emitted when a non-editable row is
* selected and one of the keys: Space, Shift+Space, Return or
* Enter is pressed.
*
* For selection handling refer to the <link linkend="TreeWidget">tree
* widget conceptual overview</link> as well as #GtkTreeSelection.
*/
tree_view_signals[ROW_ACTIVATED] =
g_signal_new (I_("row-activated"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, row_activated),
NULL, NULL,
_gtk_marshal_VOID__BOXED_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_VIEW_COLUMN);
/**
* GtkTreeView::test-expand-row:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the row to expand
* @path: a tree path that points to the row
*
* The given row is about to be expanded (show its children nodes). Use this
* signal if you need to control the expandability of individual rows.
*
* Returns: %FALSE to allow expansion, %TRUE to reject
*/
tree_view_signals[TEST_EXPAND_ROW] =
g_signal_new (I_("test-expand-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, test_expand_row),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__BOXED_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
/**
* GtkTreeView::test-collapse-row:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the row to collapse
* @path: a tree path that points to the row
*
* The given row is about to be collapsed (hide its children nodes). Use this
* signal if you need to control the collapsibility of individual rows.
*
* Returns: %FALSE to allow collapsing, %TRUE to reject
*/
tree_view_signals[TEST_COLLAPSE_ROW] =
g_signal_new (I_("test-collapse-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, test_collapse_row),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__BOXED_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
/**
* GtkTreeView::row-expanded:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the expanded row
* @path: a tree path that points to the row
*
* The given row has been expanded (child nodes are shown).
*/
tree_view_signals[ROW_EXPANDED] =
g_signal_new (I_("row-expanded"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, row_expanded),
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
/**
* GtkTreeView::row-collapsed:
* @tree_view: the object on which the signal is emitted
* @iter: the tree iter of the collapsed row
* @path: a tree path that points to the row
*
* The given row has been collapsed (child nodes are hidden).
*/
tree_view_signals[ROW_COLLAPSED] =
g_signal_new (I_("row-collapsed"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, row_collapsed),
NULL, NULL,
_gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_ITER,
GTK_TYPE_TREE_PATH);
/**
* GtkTreeView::columns-changed:
* @tree_view: the object on which the signal is emitted
*
* The number of columns of the treeview has changed.
*/
tree_view_signals[COLUMNS_CHANGED] =
g_signal_new (I_("columns-changed"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, columns_changed),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkTreeView::cursor-changed:
* @tree_view: the object on which the signal is emitted
*
* The position of the cursor (focused cell) has changed.
*/
tree_view_signals[CURSOR_CHANGED] =
g_signal_new (I_("cursor-changed"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTreeViewClass, cursor_changed),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
tree_view_signals[MOVE_CURSOR] =
g_signal_new (I_("move-cursor"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, move_cursor),
NULL, NULL,
_gtk_marshal_BOOLEAN__ENUM_INT,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_MOVEMENT_STEP,
G_TYPE_INT);
tree_view_signals[SELECT_ALL] =
g_signal_new (I_("select-all"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, select_all),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
tree_view_signals[UNSELECT_ALL] =
g_signal_new (I_("unselect-all"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, unselect_all),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
tree_view_signals[SELECT_CURSOR_ROW] =
g_signal_new (I_("select-cursor-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_row),
NULL, NULL,
_gtk_marshal_BOOLEAN__BOOLEAN,
G_TYPE_BOOLEAN, 1,
G_TYPE_BOOLEAN);
tree_view_signals[TOGGLE_CURSOR_ROW] =
g_signal_new (I_("toggle-cursor-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, toggle_cursor_row),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
tree_view_signals[EXPAND_COLLAPSE_CURSOR_ROW] =
g_signal_new (I_("expand-collapse-cursor-row"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, expand_collapse_cursor_row),
NULL, NULL,
_gtk_marshal_BOOLEAN__BOOLEAN_BOOLEAN_BOOLEAN,
G_TYPE_BOOLEAN, 3,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN);
tree_view_signals[SELECT_CURSOR_PARENT] =
g_signal_new (I_("select-cursor-parent"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, select_cursor_parent),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
tree_view_signals[START_INTERACTIVE_SEARCH] =
g_signal_new (I_("start-interactive-search"),
G_TYPE_FROM_CLASS (o_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTreeViewClass, start_interactive_search),
NULL, NULL,
_gtk_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
/* Key bindings */
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Up, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Up, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Down, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Down, 0, TRUE,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_p, GDK_CONTROL_MASK, FALSE,
GTK_MOVEMENT_DISPLAY_LINES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_n, GDK_CONTROL_MASK, FALSE,
GTK_MOVEMENT_DISPLAY_LINES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Home, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Home, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_End, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_End, 0, TRUE,
GTK_MOVEMENT_BUFFER_ENDS, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Up, 0, TRUE,
GTK_MOVEMENT_PAGES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Up, 0, TRUE,
GTK_MOVEMENT_PAGES, -1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_Page_Down, 0, TRUE,
GTK_MOVEMENT_PAGES, 1);
gtk_tree_view_add_move_binding (binding_set, GDK_KEY_KP_Page_Down, 0, TRUE,
GTK_MOVEMENT_PAGES, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, 0, "move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, 1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, GTK_MOVEMENT_VISUAL_POSITIONS,
G_TYPE_INT, -1);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_CONTROL_MASK, "toggle-cursor-row", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_a, GDK_CONTROL_MASK, "select-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, GDK_CONTROL_MASK, "select-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_A, GDK_CONTROL_MASK | GDK_SHIFT_MASK, "unselect-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_backslash, GDK_CONTROL_MASK, "unselect-all", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, GDK_SHIFT_MASK, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, GDK_SHIFT_MASK, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_space, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Space, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Return, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_ISO_Enter, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Enter, 0, "select-cursor-row", 1,
G_TYPE_BOOLEAN, TRUE);
/* expand and collapse rows */
gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_asterisk, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Multiply, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_slash, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Divide, 0,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
/* Not doable on US keyboards */
gtk_binding_entry_add_signal (binding_set, GDK_KEY_plus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Add, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Right,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Right,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_minus, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, 0, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Subtract, GDK_SHIFT_MASK, "expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, TRUE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left, GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Left,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_KP_Left,
GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"expand-collapse-cursor-row", 3,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, FALSE,
G_TYPE_BOOLEAN, TRUE);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, 0, "select-cursor-parent", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_BackSpace, GDK_CONTROL_MASK, "select-cursor-parent", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_f, GDK_CONTROL_MASK, "start-interactive-search", 0);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_F, GDK_CONTROL_MASK, "start-interactive-search", 0);
g_type_class_add_private (o_class, sizeof (GtkTreeViewPrivate));
}
static void
gtk_tree_view_init (GtkTreeView *tree_view)
{
tree_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (tree_view, GTK_TYPE_TREE_VIEW, GtkTreeViewPrivate);
gtk_widget_set_can_focus (GTK_WIDGET (tree_view), TRUE);
gtk_widget_set_redraw_on_allocate (GTK_WIDGET (tree_view), FALSE);
tree_view->priv->flags = GTK_TREE_VIEW_SHOW_EXPANDERS
| GTK_TREE_VIEW_DRAW_KEYFOCUS
| GTK_TREE_VIEW_HEADERS_VISIBLE;
/* We need some padding */
tree_view->priv->dy = 0;
tree_view->priv->cursor_offset = 0;
tree_view->priv->n_columns = 0;
tree_view->priv->header_height = 1;
tree_view->priv->x_drag = 0;
tree_view->priv->drag_pos = -1;
tree_view->priv->header_has_focus = FALSE;
tree_view->priv->pressed_button = -1;
tree_view->priv->press_start_x = -1;
tree_view->priv->press_start_y = -1;
tree_view->priv->reorderable = FALSE;
tree_view->priv->presize_handler_timer = 0;
tree_view->priv->scroll_sync_timer = 0;
tree_view->priv->fixed_height = -1;
tree_view->priv->fixed_height_mode = FALSE;
tree_view->priv->fixed_height_check = 0;
tree_view->priv->selection = _gtk_tree_selection_new_with_tree_view (tree_view);
tree_view->priv->enable_search = TRUE;
tree_view->priv->search_column = -1;
tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
tree_view->priv->search_custom_entry_set = FALSE;
tree_view->priv->typeselect_flush_timeout = 0;
tree_view->priv->init_hadjust_value = TRUE;
tree_view->priv->width = 0;
tree_view->priv->hover_selection = FALSE;
tree_view->priv->hover_expand = FALSE;
tree_view->priv->level_indentation = 0;
tree_view->priv->rubber_banding_enable = FALSE;
tree_view->priv->grid_lines = GTK_TREE_VIEW_GRID_LINES_NONE;
tree_view->priv->tree_lines_enabled = FALSE;
tree_view->priv->tooltip_column = -1;
tree_view->priv->post_validation_flag = FALSE;
tree_view->priv->last_button_x = -1;
tree_view->priv->last_button_y = -1;
tree_view->priv->event_last_x = -10000;
tree_view->priv->event_last_y = -10000;
gtk_tree_view_set_vadjustment (tree_view, NULL);
gtk_tree_view_set_hadjustment (tree_view, NULL);
}
/* GObject Methods
*/
static void
gtk_tree_view_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (object);
switch (prop_id)
{
case PROP_MODEL:
gtk_tree_view_set_model (tree_view, g_value_get_object (value));
break;
case PROP_HADJUSTMENT:
gtk_tree_view_set_hadjustment (tree_view, g_value_get_object (value));
break;
case PROP_VADJUSTMENT:
gtk_tree_view_set_vadjustment (tree_view, g_value_get_object (value));
break;
case PROP_HSCROLL_POLICY:
tree_view->priv->hscroll_policy = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
break;
case PROP_VSCROLL_POLICY:
tree_view->priv->vscroll_policy = g_value_get_enum (value);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
break;
case PROP_HEADERS_VISIBLE:
gtk_tree_view_set_headers_visible (tree_view, g_value_get_boolean (value));
break;
case PROP_HEADERS_CLICKABLE:
gtk_tree_view_set_headers_clickable (tree_view, g_value_get_boolean (value));
break;
case PROP_EXPANDER_COLUMN:
gtk_tree_view_set_expander_column (tree_view, g_value_get_object (value));
break;
case PROP_REORDERABLE:
gtk_tree_view_set_reorderable (tree_view, g_value_get_boolean (value));
break;
case PROP_RULES_HINT:
gtk_tree_view_set_rules_hint (tree_view, g_value_get_boolean (value));
break;
case PROP_ENABLE_SEARCH:
gtk_tree_view_set_enable_search (tree_view, g_value_get_boolean (value));
break;
case PROP_SEARCH_COLUMN:
gtk_tree_view_set_search_column (tree_view, g_value_get_int (value));
break;
case PROP_FIXED_HEIGHT_MODE:
gtk_tree_view_set_fixed_height_mode (tree_view, g_value_get_boolean (value));
break;
case PROP_HOVER_SELECTION:
tree_view->priv->hover_selection = g_value_get_boolean (value);
break;
case PROP_HOVER_EXPAND:
tree_view->priv->hover_expand = g_value_get_boolean (value);
break;
case PROP_SHOW_EXPANDERS:
gtk_tree_view_set_show_expanders (tree_view, g_value_get_boolean (value));
break;
case PROP_LEVEL_INDENTATION:
tree_view->priv->level_indentation = g_value_get_int (value);
break;
case PROP_RUBBER_BANDING:
tree_view->priv->rubber_banding_enable = g_value_get_boolean (value);
break;
case PROP_ENABLE_GRID_LINES:
gtk_tree_view_set_grid_lines (tree_view, g_value_get_enum (value));
break;
case PROP_ENABLE_TREE_LINES:
gtk_tree_view_set_enable_tree_lines (tree_view, g_value_get_boolean (value));
break;
case PROP_TOOLTIP_COLUMN:
gtk_tree_view_set_tooltip_column (tree_view, g_value_get_int (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tree_view_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (object);
switch (prop_id)
{
case PROP_MODEL:
g_value_set_object (value, tree_view->priv->model);
break;
case PROP_HADJUSTMENT:
g_value_set_object (value, tree_view->priv->hadjustment);
break;
case PROP_VADJUSTMENT:
g_value_set_object (value, tree_view->priv->vadjustment);
break;
case PROP_HSCROLL_POLICY:
g_value_set_enum (value, tree_view->priv->hscroll_policy);
break;
case PROP_VSCROLL_POLICY:
g_value_set_enum (value, tree_view->priv->vscroll_policy);
break;
case PROP_HEADERS_VISIBLE:
g_value_set_boolean (value, gtk_tree_view_get_headers_visible (tree_view));
break;
case PROP_HEADERS_CLICKABLE:
g_value_set_boolean (value, gtk_tree_view_get_headers_clickable (tree_view));
break;
case PROP_EXPANDER_COLUMN:
g_value_set_object (value, tree_view->priv->expander_column);
break;
case PROP_REORDERABLE:
g_value_set_boolean (value, tree_view->priv->reorderable);
break;
case PROP_RULES_HINT:
g_value_set_boolean (value, tree_view->priv->has_rules);
break;
case PROP_ENABLE_SEARCH:
g_value_set_boolean (value, tree_view->priv->enable_search);
break;
case PROP_SEARCH_COLUMN:
g_value_set_int (value, tree_view->priv->search_column);
break;
case PROP_FIXED_HEIGHT_MODE:
g_value_set_boolean (value, tree_view->priv->fixed_height_mode);
break;
case PROP_HOVER_SELECTION:
g_value_set_boolean (value, tree_view->priv->hover_selection);
break;
case PROP_HOVER_EXPAND:
g_value_set_boolean (value, tree_view->priv->hover_expand);
break;
case PROP_SHOW_EXPANDERS:
g_value_set_boolean (value, GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS));
break;
case PROP_LEVEL_INDENTATION:
g_value_set_int (value, tree_view->priv->level_indentation);
break;
case PROP_RUBBER_BANDING:
g_value_set_boolean (value, tree_view->priv->rubber_banding_enable);
break;
case PROP_ENABLE_GRID_LINES:
g_value_set_enum (value, tree_view->priv->grid_lines);
break;
case PROP_ENABLE_TREE_LINES:
g_value_set_boolean (value, tree_view->priv->tree_lines_enabled);
break;
case PROP_TOOLTIP_COLUMN:
g_value_set_int (value, tree_view->priv->tooltip_column);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_tree_view_finalize (GObject *object)
{
G_OBJECT_CLASS (gtk_tree_view_parent_class)->finalize (object);
}
static GtkBuildableIface *parent_buildable_iface;
static void
gtk_tree_view_buildable_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->add_child = gtk_tree_view_buildable_add_child;
iface->get_internal_child = gtk_tree_view_buildable_get_internal_child;
}
static void
gtk_tree_view_buildable_add_child (GtkBuildable *tree_view,
GtkBuilder *builder,
GObject *child,
const gchar *type)
{
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), GTK_TREE_VIEW_COLUMN (child));
}
static GObject *
gtk_tree_view_buildable_get_internal_child (GtkBuildable *buildable,
GtkBuilder *builder,
const gchar *childname)
{
if (strcmp (childname, "selection") == 0)
return G_OBJECT (GTK_TREE_VIEW (buildable)->priv->selection);
return parent_buildable_iface->get_internal_child (buildable,
builder,
childname);
}
/* GtkWidget Methods
*/
static void
gtk_tree_view_free_rbtree (GtkTreeView *tree_view)
{
_gtk_rbtree_free (tree_view->priv->tree);
tree_view->priv->tree = NULL;
tree_view->priv->button_pressed_node = NULL;
tree_view->priv->button_pressed_tree = NULL;
tree_view->priv->prelight_tree = NULL;
tree_view->priv->prelight_node = NULL;
tree_view->priv->expanded_collapsed_node = NULL;
tree_view->priv->expanded_collapsed_tree = NULL;
}
static void
gtk_tree_view_destroy (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *list;
gtk_tree_view_stop_editing (tree_view, TRUE);
if (tree_view->priv->columns != NULL)
{
list = tree_view->priv->columns;
while (list)
{
GtkTreeViewColumn *column;
column = GTK_TREE_VIEW_COLUMN (list->data);
list = list->next;
gtk_tree_view_remove_column (tree_view, column);
}
tree_view->priv->columns = NULL;
}
if (tree_view->priv->tree != NULL)
{
gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
gtk_tree_view_free_rbtree (tree_view);
}
if (tree_view->priv->selection != NULL)
{
_gtk_tree_selection_set_tree_view (tree_view->priv->selection, NULL);
g_object_unref (tree_view->priv->selection);
tree_view->priv->selection = NULL;
}
if (tree_view->priv->scroll_to_path != NULL)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (tree_view->priv->drag_dest_row != NULL)
{
gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
tree_view->priv->drag_dest_row = NULL;
}
if (tree_view->priv->top_row != NULL)
{
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
}
if (tree_view->priv->column_drop_func_data &&
tree_view->priv->column_drop_func_data_destroy)
{
tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
tree_view->priv->column_drop_func_data = NULL;
}
if (tree_view->priv->destroy_count_destroy &&
tree_view->priv->destroy_count_data)
{
tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
tree_view->priv->destroy_count_data = NULL;
}
gtk_tree_row_reference_free (tree_view->priv->cursor);
tree_view->priv->cursor = NULL;
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
/* destroy interactive search dialog */
if (tree_view->priv->search_window)
{
gtk_widget_destroy (tree_view->priv->search_window);
tree_view->priv->search_window = NULL;
tree_view->priv->search_entry = NULL;
if (tree_view->priv->typeselect_flush_timeout)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout = 0;
}
}
if (tree_view->priv->search_destroy && tree_view->priv->search_user_data)
{
tree_view->priv->search_destroy (tree_view->priv->search_user_data);
tree_view->priv->search_user_data = NULL;
}
if (tree_view->priv->search_position_destroy && tree_view->priv->search_position_user_data)
{
tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
tree_view->priv->search_position_user_data = NULL;
}
if (tree_view->priv->row_separator_destroy && tree_view->priv->row_separator_data)
{
tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
tree_view->priv->row_separator_data = NULL;
}
gtk_tree_view_set_model (tree_view, NULL);
if (tree_view->priv->hadjustment)
{
g_object_unref (tree_view->priv->hadjustment);
tree_view->priv->hadjustment = NULL;
}
if (tree_view->priv->vadjustment)
{
g_object_unref (tree_view->priv->vadjustment);
tree_view->priv->vadjustment = NULL;
}
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->destroy (widget);
}
/* GtkWidget::map helper */
static void
gtk_tree_view_map_buttons (GtkTreeView *tree_view)
{
GList *list;
g_return_if_fail (gtk_widget_get_mapped (GTK_WIDGET (tree_view)));
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
{
GtkTreeViewColumn *column;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (gtk_widget_get_visible (column->button) &&
!gtk_widget_get_mapped (column->button))
gtk_widget_map (column->button);
}
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->visible == FALSE)
continue;
if (column->resizable)
{
gdk_window_raise (column->window);
gdk_window_show (column->window);
}
else
gdk_window_hide (column->window);
}
gdk_window_show (tree_view->priv->header_window);
}
}
static void
gtk_tree_view_map (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *tmp_list;
gtk_widget_set_mapped (widget, TRUE);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
if (gtk_widget_get_visible (child->widget))
{
if (!gtk_widget_get_mapped (child->widget))
gtk_widget_map (child->widget);
}
}
gdk_window_show (tree_view->priv->bin_window);
gtk_tree_view_map_buttons (tree_view);
gdk_window_show (gtk_widget_get_window (widget));
}
static void
gtk_tree_view_realize (GtkWidget *widget)
{
GtkAllocation allocation;
GtkStyle *style;
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GdkWindow *window;
GdkWindowAttr attributes;
GList *tmp_list;
gint attributes_mask;
gtk_widget_set_realized (widget, TRUE);
gtk_widget_get_allocation (widget, &allocation);
/* Make the main, clipping window */
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gtk_widget_set_window (widget, window);
gdk_window_set_user_data (window, widget);
gtk_widget_get_allocation (widget, &allocation);
/* Make the window for the tree */
attributes.x = 0;
attributes.y = TREE_VIEW_HEADER_HEIGHT (tree_view);
attributes.width = MAX (tree_view->priv->width, allocation.width);
attributes.height = allocation.height;
attributes.event_mask = (GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
gtk_widget_get_events (widget));
tree_view->priv->bin_window = gdk_window_new (window,
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->bin_window, widget);
gtk_widget_get_allocation (widget, &allocation);
/* Make the column header window */
attributes.x = 0;
attributes.y = 0;
attributes.width = MAX (tree_view->priv->width, allocation.width);
attributes.height = tree_view->priv->header_height;
attributes.event_mask = (GDK_EXPOSURE_MASK |
GDK_SCROLL_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_KEY_PRESS_MASK |
GDK_KEY_RELEASE_MASK |
gtk_widget_get_events (widget));
tree_view->priv->header_window = gdk_window_new (window,
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->header_window, widget);
/* Add them all up. */
gtk_widget_style_attach (widget);
style = gtk_widget_get_style (widget);
gdk_window_set_background (tree_view->priv->bin_window,
&style->base[gtk_widget_get_state (widget)]);
gtk_style_set_background (style, tree_view->priv->header_window, GTK_STATE_NORMAL);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
}
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
_gtk_tree_view_column_realize_button (GTK_TREE_VIEW_COLUMN (tmp_list->data));
/* Need to call those here, since they create GCs */
gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
install_presize_handler (tree_view);
}
static void
gtk_tree_view_unrealize (GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreeViewPrivate *priv = tree_view->priv;
GList *list;
if (priv->scroll_timeout != 0)
{
g_source_remove (priv->scroll_timeout);
priv->scroll_timeout = 0;
}
if (priv->auto_expand_timeout != 0)
{
g_source_remove (priv->auto_expand_timeout);
priv->auto_expand_timeout = 0;
}
if (priv->open_dest_timeout != 0)
{
g_source_remove (priv->open_dest_timeout);
priv->open_dest_timeout = 0;
}
remove_expand_collapse_timeout (tree_view);
if (priv->presize_handler_timer != 0)
{
g_source_remove (priv->presize_handler_timer);
priv->presize_handler_timer = 0;
}
if (priv->validate_rows_timer != 0)
{
g_source_remove (priv->validate_rows_timer);
priv->validate_rows_timer = 0;
}
if (priv->scroll_sync_timer != 0)
{
g_source_remove (priv->scroll_sync_timer);
priv->scroll_sync_timer = 0;
}
if (priv->typeselect_flush_timeout)
{
g_source_remove (priv->typeselect_flush_timeout);
priv->typeselect_flush_timeout = 0;
}
for (list = priv->columns; list; list = list->next)
_gtk_tree_view_column_unrealize_button (GTK_TREE_VIEW_COLUMN (list->data));
gdk_window_set_user_data (priv->bin_window, NULL);
gdk_window_destroy (priv->bin_window);
priv->bin_window = NULL;
gdk_window_set_user_data (priv->header_window, NULL);
gdk_window_destroy (priv->header_window);
priv->header_window = NULL;
if (priv->drag_window)
{
gdk_window_set_user_data (priv->drag_window, NULL);
gdk_window_destroy (priv->drag_window);
priv->drag_window = NULL;
}
if (priv->drag_highlight_window)
{
gdk_window_set_user_data (priv->drag_highlight_window, NULL);
gdk_window_destroy (priv->drag_highlight_window);
priv->drag_highlight_window = NULL;
}
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->unrealize (widget);
}
/* GtkWidget::size_request helper */
static void
gtk_tree_view_size_request_columns (GtkTreeView *tree_view)
{
GList *list;
tree_view->priv->header_height = 0;
if (tree_view->priv->model)
{
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkRequisition requisition;
GtkTreeViewColumn *column = list->data;
if (column->button == NULL)
continue;
column = list->data;
gtk_widget_get_preferred_size (column->button, &requisition, NULL);
column->button_request = requisition.width;
tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
}
}
}
/* Called only by ::size_request */
static void
gtk_tree_view_update_size (GtkTreeView *tree_view)
{
GList *list;
GtkTreeViewColumn *column;
gint i;
if (tree_view->priv->model == NULL)
{
tree_view->priv->width = 0;
tree_view->priv->prev_width = 0;
tree_view->priv->height = 0;
return;
}
tree_view->priv->prev_width = tree_view->priv->width;
tree_view->priv->width = 0;
/* keep this in sync with size_allocate below */
for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
{
gint real_requested_width = 0;
column = list->data;
if (!column->visible)
continue;
if (column->use_resized_width)
{
real_requested_width = column->resized_width;
}
else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
{
real_requested_width = column->fixed_width;
}
else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
{
real_requested_width = MAX (column->requested_width, column->button_request);
}
else
{
real_requested_width = column->requested_width;
}
if (column->min_width != -1)
real_requested_width = MAX (real_requested_width, column->min_width);
if (column->max_width != -1)
real_requested_width = MIN (real_requested_width, column->max_width);
tree_view->priv->width += real_requested_width;
}
if (tree_view->priv->tree == NULL)
tree_view->priv->height = 0;
else
tree_view->priv->height = tree_view->priv->tree->root->offset;
}
static void
gtk_tree_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *tmp_list;
/* we validate some rows initially just to make sure we have some size.
* In practice, with a lot of static lists, this should get a good width.
*/
do_validate_rows (tree_view, FALSE);
gtk_tree_view_size_request_columns (tree_view);
gtk_tree_view_update_size (GTK_TREE_VIEW (widget));
requisition->width = tree_view->priv->width;
requisition->height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
GtkRequisition child_requisition;
tmp_list = tmp_list->next;
if (gtk_widget_get_visible (child->widget))
gtk_widget_get_preferred_size (child->widget, &child_requisition, NULL);
}
}
static int
gtk_tree_view_calculate_width_before_expander (GtkTreeView *tree_view)
{
int width = 0;
GList *list;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list->data != tree_view->priv->expander_column;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
width += column->width;
}
return width;
}
static void
invalidate_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
gint column_offset = 0;
GList *list;
GtkWidget *widget = GTK_WIDGET (tree_view);
gboolean rtl;
if (!gtk_widget_get_realized (widget))
return;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *tmpcolumn = list->data;
if (tmpcolumn == column)
{
GtkAllocation allocation;
GdkRectangle invalid_rect;
gtk_widget_get_allocation (widget, &allocation);
invalid_rect.x = column_offset;
invalid_rect.y = 0;
invalid_rect.width = column->width;
invalid_rect.height = allocation.height;
gdk_window_invalidate_rect (gtk_widget_get_window (widget), &invalid_rect, TRUE);
break;
}
column_offset += tmpcolumn->width;
}
}
static void
invalidate_last_column (GtkTreeView *tree_view)
{
GList *last_column;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (last_column = (rtl ? g_list_first (tree_view->priv->columns) : g_list_last (tree_view->priv->columns));
last_column;
last_column = (rtl ? last_column->next : last_column->prev))
{
if (GTK_TREE_VIEW_COLUMN (last_column->data)->visible)
{
invalidate_column (tree_view, last_column->data);
return;
}
}
}
static gint
gtk_tree_view_get_real_requested_width_from_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
gint real_requested_width;
if (column->use_resized_width)
{
real_requested_width = column->resized_width;
}
else if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
{
real_requested_width = column->fixed_width;
}
else if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
{
real_requested_width = MAX (column->requested_width, column->button_request);
}
else
{
real_requested_width = column->requested_width;
if (real_requested_width < 0)
real_requested_width = 0;
}
if (column->min_width != -1)
real_requested_width = MAX (real_requested_width, column->min_width);
if (column->max_width != -1)
real_requested_width = MIN (real_requested_width, column->max_width);
return real_requested_width;
}
/* GtkWidget::size_allocate helper */
static void
gtk_tree_view_size_allocate_columns (GtkWidget *widget,
gboolean *width_changed)
{
GtkTreeView *tree_view;
GList *list, *first_column, *last_column;
GtkTreeViewColumn *column;
GtkAllocation allocation;
GtkAllocation widget_allocation;
gint width = 0;
gint extra, extra_per_column, extra_for_last;
gint full_requested_width = 0;
gint number_of_expand_columns = 0;
gboolean column_changed = FALSE;
gboolean rtl;
gboolean update_expand;
tree_view = GTK_TREE_VIEW (widget);
for (last_column = g_list_last (tree_view->priv->columns);
last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
last_column = last_column->prev)
;
if (last_column == NULL)
return;
for (first_column = g_list_first (tree_view->priv->columns);
first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
first_column = first_column->next)
;
allocation.y = 0;
allocation.height = tree_view->priv->header_height;
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
/* find out how many extra space and expandable columns we have */
for (list = tree_view->priv->columns; list != last_column->next; list = list->next)
{
column = (GtkTreeViewColumn *)list->data;
if (!column->visible)
continue;
full_requested_width += gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
if (column->expand)
number_of_expand_columns++;
}
/* Only update the expand value if the width of the widget has changed,
* or the number of expand columns has changed, or if there are no expand
* columns, or if we didn't have an size-allocation yet after the
* last validated node.
*/
update_expand = (width_changed && *width_changed == TRUE)
|| number_of_expand_columns != tree_view->priv->last_number_of_expand_columns
|| number_of_expand_columns == 0
|| tree_view->priv->post_validation_flag == TRUE;
tree_view->priv->post_validation_flag = FALSE;
gtk_widget_get_allocation (widget, &widget_allocation);
if (!update_expand)
{
extra = tree_view->priv->last_extra_space;
extra_for_last = MAX (widget_allocation.width - full_requested_width - extra, 0);
}
else
{
extra = MAX (widget_allocation.width - full_requested_width, 0);
extra_for_last = 0;
tree_view->priv->last_extra_space = extra;
}
if (number_of_expand_columns > 0)
extra_per_column = extra/number_of_expand_columns;
else
extra_per_column = 0;
if (update_expand)
{
tree_view->priv->last_extra_space_per_column = extra_per_column;
tree_view->priv->last_number_of_expand_columns = number_of_expand_columns;
}
for (list = (rtl ? last_column : first_column);
list != (rtl ? first_column->prev : last_column->next);
list = (rtl ? list->prev : list->next))
{
gint real_requested_width = 0;
gint old_width;
column = list->data;
old_width = column->width;
if (!column->visible)
continue;
/* We need to handle the dragged button specially.
*/
if (column == tree_view->priv->drag_column)
{
GtkAllocation drag_allocation;
drag_allocation.x = 0;
drag_allocation.y = 0;
drag_allocation.width = gdk_window_get_width (tree_view->priv->drag_window);
drag_allocation.height = gdk_window_get_height (tree_view->priv->drag_window);
gtk_widget_size_allocate (tree_view->priv->drag_column->button,
&drag_allocation);
width += drag_allocation.width;
continue;
}
real_requested_width = gtk_tree_view_get_real_requested_width_from_column (tree_view, column);
allocation.x = width;
column->width = real_requested_width;
if (column->expand)
{
if (number_of_expand_columns == 1)
{
/* We add the remander to the last column as
* */
column->width += extra;
}
else
{
column->width += extra_per_column;
extra -= extra_per_column;
number_of_expand_columns --;
}
}
else if (number_of_expand_columns == 0 &&
list == last_column)
{
column->width += extra;
}
/* In addition to expand, the last column can get even more
* extra space so all available space is filled up.
*/
if (extra_for_last > 0 && list == last_column)
column->width += extra_for_last;
g_object_notify (G_OBJECT (column), "width");
allocation.width = column->width;
width += column->width;
if (column->width > old_width)
column_changed = TRUE;
gtk_widget_size_allocate (column->button, &allocation);
if (column->window)
gdk_window_move_resize (column->window,
allocation.x + (rtl ? 0 : allocation.width) - TREE_VIEW_DRAG_WIDTH/2,
allocation.y,
TREE_VIEW_DRAG_WIDTH, allocation.height);
}
/* We change the width here. The user might have been resizing columns,
* so the total width of the tree view changes.
*/
tree_view->priv->width = width;
if (width_changed)
*width_changed = TRUE;
if (column_changed)
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static void
gtk_tree_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkAllocation widget_allocation;
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *tmp_list;
gboolean width_changed = FALSE;
gint old_width;
gtk_widget_get_allocation (widget, &widget_allocation);
old_width = widget_allocation.width;
if (allocation->width != widget_allocation.width)
width_changed = TRUE;
gtk_widget_set_allocation (widget, allocation);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkAllocation allocation;
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
/* totally ignore our child's requisition */
allocation.x = child->x;
allocation.y = child->y;
allocation.width = child->width;
allocation.height = child->height;
gtk_widget_size_allocate (child->widget, &allocation);
}
/* We size-allocate the columns first because the width of the
* tree view (used in updating the adjustments below) might change.
*/
gtk_tree_view_size_allocate_columns (widget, &width_changed);
g_object_freeze_notify (G_OBJECT (tree_view->priv->hadjustment));
gtk_adjustment_set_page_size (tree_view->priv->hadjustment,
allocation->width);
gtk_adjustment_set_page_increment (tree_view->priv->hadjustment,
allocation->width * 0.9);
gtk_adjustment_set_step_increment (tree_view->priv->hadjustment,
allocation->width * 0.1);
gtk_adjustment_set_lower (tree_view->priv->hadjustment, 0);
gtk_adjustment_set_upper (tree_view->priv->hadjustment,
MAX (tree_view->priv->hadjustment->page_size,
tree_view->priv->width));
g_object_thaw_notify (G_OBJECT (tree_view->priv->hadjustment));
if (gtk_widget_get_direction(widget) == GTK_TEXT_DIR_RTL)
{
if (allocation->width < tree_view->priv->width)
{
if (tree_view->priv->init_hadjust_value)
{
gtk_adjustment_set_value (tree_view->priv->hadjustment,
MAX (tree_view->priv->width -
allocation->width, 0));
tree_view->priv->init_hadjust_value = FALSE;
}
else if (allocation->width != old_width)
{
gtk_adjustment_set_value (tree_view->priv->hadjustment,
CLAMP (tree_view->priv->hadjustment->value - allocation->width + old_width,
0,
tree_view->priv->width - allocation->width));
}
else
gtk_adjustment_set_value (tree_view->priv->hadjustment,
CLAMP (tree_view->priv->width - (tree_view->priv->prev_width - tree_view->priv->hadjustment->value),
0,
tree_view->priv->width - allocation->width));
}
else
{
gtk_adjustment_set_value (tree_view->priv->hadjustment, 0);
tree_view->priv->init_hadjust_value = TRUE;
}
}
else
if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
gtk_adjustment_set_value (tree_view->priv->hadjustment,
MAX (tree_view->priv->width -
allocation->width, 0));
g_object_freeze_notify (G_OBJECT (tree_view->priv->vadjustment));
gtk_adjustment_set_page_size (tree_view->priv->vadjustment,
allocation->height -
TREE_VIEW_HEADER_HEIGHT (tree_view));
gtk_adjustment_set_step_increment (tree_view->priv->vadjustment,
tree_view->priv->vadjustment->page_size * 0.1);
gtk_adjustment_set_page_increment (tree_view->priv->vadjustment,
tree_view->priv->vadjustment->page_size * 0.9);
gtk_adjustment_set_lower (tree_view->priv->vadjustment, 0);
gtk_adjustment_set_upper (tree_view->priv->vadjustment,
MAX (tree_view->priv->vadjustment->page_size,
tree_view->priv->height));
g_object_thaw_notify (G_OBJECT (tree_view->priv->vadjustment));
/* now the adjustments and window sizes are in sync, we can sync toprow/dy again */
if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
tree_view->priv->height - tree_view->priv->vadjustment->page_size);
else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
gtk_tree_view_top_row_to_dy (tree_view);
else
gtk_tree_view_dy_to_top_row (tree_view);
if (gtk_widget_get_realized (widget))
{
gdk_window_move_resize (gtk_widget_get_window (widget),
allocation->x, allocation->y,
allocation->width, allocation->height);
gdk_window_move_resize (tree_view->priv->header_window,
- (gint) tree_view->priv->hadjustment->value,
0,
MAX (tree_view->priv->width, allocation->width),
tree_view->priv->header_height);
gdk_window_move_resize (tree_view->priv->bin_window,
- (gint) tree_view->priv->hadjustment->value,
TREE_VIEW_HEADER_HEIGHT (tree_view),
MAX (tree_view->priv->width, allocation->width),
allocation->height - TREE_VIEW_HEADER_HEIGHT (tree_view));
}
if (tree_view->priv->tree == NULL)
invalidate_empty_focus (tree_view);
if (gtk_widget_get_realized (widget))
{
gboolean has_expand_column = FALSE;
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
{
if (gtk_tree_view_column_get_expand (GTK_TREE_VIEW_COLUMN (tmp_list->data)))
{
has_expand_column = TRUE;
break;
}
}
if (width_changed && tree_view->priv->expander_column)
{
/* Might seem awkward, but is the best heuristic I could come up
* with. Only if the width of the columns before the expander
* changes, we will update the prelight status. It is this
* width that makes the expander move vertically. Always updating
* prelight status causes trouble with hover selections.
*/
gint width_before_expander;
width_before_expander = gtk_tree_view_calculate_width_before_expander (tree_view);
if (tree_view->priv->prev_width_before_expander
!= width_before_expander)
update_prelight (tree_view,
tree_view->priv->event_last_x,
tree_view->priv->event_last_y);
tree_view->priv->prev_width_before_expander = width_before_expander;
}
/* This little hack only works if we have an LTR locale, and no column has the */
if (width_changed)
{
if (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_LTR &&
! has_expand_column)
invalidate_last_column (tree_view);
else
gtk_widget_queue_draw (widget);
}
}
}
/* Grabs the focus and unsets the GTK_TREE_VIEW_DRAW_KEYFOCUS flag */
static void
grab_focus_and_unset_draw_keyfocus (GtkTreeView *tree_view)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
if (gtk_widget_get_can_focus (widget) && !gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
}
static inline gboolean
row_is_separator (GtkTreeView *tree_view,
GtkTreeIter *iter,
GtkTreePath *path)
{
gboolean is_separator = FALSE;
if (tree_view->priv->row_separator_func)
{
GtkTreeIter tmpiter;
if (iter)
tmpiter = *iter;
else
gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, path);
is_separator = tree_view->priv->row_separator_func (tree_view->priv->model,
&tmpiter,
tree_view->priv->row_separator_data);
}
return is_separator;
}
static gboolean
gtk_tree_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GList *list;
GtkTreeViewColumn *column = NULL;
gint i;
GdkRectangle background_area;
GdkRectangle cell_area;
gint vertical_separator;
gint horizontal_separator;
gboolean path_is_selectable;
gboolean rtl;
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
gtk_tree_view_stop_editing (tree_view, FALSE);
gtk_widget_style_get (widget,
"vertical-separator", &vertical_separator,
"horizontal-separator", &horizontal_separator,
NULL);
/* Because grab_focus can cause reentrancy, we delay grab_focus until after
* we're done handling the button press.
*/
if (event->window == tree_view->priv->bin_window)
{
GtkRBNode *node;
GtkRBTree *tree;
GtkTreePath *path;
gchar *path_string;
gint depth;
gint new_y;
gint y_offset;
gint dval;
gint pre_val, aft_val;
GtkTreeViewColumn *column = NULL;
GtkCellRenderer *focus_cell = NULL;
gint column_handled_click = FALSE;
gboolean row_double_click = FALSE;
gboolean rtl;
gboolean node_selected;
/* Empty tree? */
if (tree_view->priv->tree == NULL)
{
grab_focus_and_unset_draw_keyfocus (tree_view);
return TRUE;
}
/* are we in an arrow? */
if (tree_view->priv->prelight_node &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
if (event->button == 1)
{
gtk_grab_add (widget);
tree_view->priv->button_pressed_node = tree_view->priv->prelight_node;
tree_view->priv->button_pressed_tree = tree_view->priv->prelight_tree;
gtk_tree_view_queue_draw_arrow (GTK_TREE_VIEW (widget),
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node);
}
grab_focus_and_unset_draw_keyfocus (tree_view);
return TRUE;
}
/* find the node that was clicked */
new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
if (new_y < 0)
new_y = 0;
y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
if (node == NULL)
{
/* We clicked in dead space */
grab_focus_and_unset_draw_keyfocus (tree_view);
return TRUE;
}
/* Get the path and the node */
path = _gtk_tree_view_find_path (tree_view, tree, node);
path_is_selectable = !row_is_separator (tree_view, NULL, path);
if (!path_is_selectable)
{
gtk_tree_path_free (path);
grab_focus_and_unset_draw_keyfocus (tree_view);
return TRUE;
}
depth = gtk_tree_path_get_depth (path);
background_area.y = y_offset + event->y;
background_area.height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
background_area.x = 0;
/* Let the column have a chance at selecting it. */
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list; list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *candidate = list->data;
if (!candidate->visible)
continue;
background_area.width = candidate->width;
if ((background_area.x > (gint) event->x) ||
(background_area.x + background_area.width <= (gint) event->x))
{
background_area.x += background_area.width;
continue;
}
/* we found the focus column */
column = candidate;
cell_area = background_area;
cell_area.width -= horizontal_separator;
cell_area.height -= vertical_separator;
cell_area.x += horizontal_separator/2;
cell_area.y += vertical_separator/2;
if (gtk_tree_view_is_expander_column (tree_view, column))
{
if (!rtl)
cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
if (!rtl)
cell_area.x += depth * tree_view->priv->expander_size;
cell_area.width -= depth * tree_view->priv->expander_size;
}
}
break;
}
if (column == NULL)
{
gtk_tree_path_free (path);
grab_focus_and_unset_draw_keyfocus (tree_view);
return FALSE;
}
tree_view->priv->focus_column = column;
/* decide if we edit */
if (event->type == GDK_BUTTON_PRESS && event->button == 1 &&
!(event->state & gtk_accelerator_get_default_mod_mask ()))
{
GtkTreePath *anchor;
GtkTreeIter iter;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
if (tree_view->priv->anchor)
anchor = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
else
anchor = NULL;
if ((anchor && !gtk_tree_path_compare (anchor, path))
|| !_gtk_tree_view_column_has_editable_cell (column))
{
GtkCellEditable *cell_editable = NULL;
/* FIXME: get the right flags */
guint flags = 0;
path_string = gtk_tree_path_to_string (path);
if (_gtk_tree_view_column_cell_event (column,
&cell_editable,
(GdkEvent *)event,
path_string,
&background_area,
&cell_area, flags))
{
if (cell_editable != NULL)
{
gint left, right;
GdkRectangle area;
area = cell_area;
_gtk_tree_view_column_get_neighbor_sizes (column, _gtk_tree_view_column_get_edited_cell (column), &left, &right);
area.x += left;
area.width -= right + left;
gtk_tree_view_real_start_editing (tree_view,
column,
path,
cell_editable,
&area,
(GdkEvent *)event,
flags);
g_free (path_string);
gtk_tree_path_free (path);
gtk_tree_path_free (anchor);
return TRUE;
}
column_handled_click = TRUE;
}
g_free (path_string);
}
if (anchor)
gtk_tree_path_free (anchor);
}
/* select */
node_selected = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
pre_val = tree_view->priv->vadjustment->value;
/* we only handle selection modifications on the first button press
*/
if (event->type == GDK_BUTTON_PRESS)
{
if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
tree_view->priv->ctrl_pressed = TRUE;
if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
tree_view->priv->shift_pressed = TRUE;
focus_cell = _gtk_tree_view_column_get_cell_at_pos (column, event->x - background_area.x);
if (focus_cell)
gtk_tree_view_column_focus_cell (column, focus_cell);
if (event->state & GDK_CONTROL_MASK)
{
gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
gtk_tree_view_real_toggle_cursor_row (tree_view);
}
else if (event->state & GDK_SHIFT_MASK)
{
gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
gtk_tree_view_real_select_cursor_row (tree_view, FALSE);
}
else
{
gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
}
tree_view->priv->ctrl_pressed = FALSE;
tree_view->priv->shift_pressed = FALSE;
}
/* the treeview may have been scrolled because of _set_cursor,
* correct here
*/
aft_val = tree_view->priv->vadjustment->value;
dval = pre_val - aft_val;
cell_area.y += dval;
background_area.y += dval;
/* Save press to possibly begin a drag
*/
if (!column_handled_click &&
!tree_view->priv->in_grab &&
tree_view->priv->pressed_button < 0)
{
tree_view->priv->pressed_button = event->button;
tree_view->priv->press_start_x = event->x;
tree_view->priv->press_start_y = event->y;
if (tree_view->priv->rubber_banding_enable
&& !node_selected
&& tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
{
tree_view->priv->press_start_y += tree_view->priv->dy;
tree_view->priv->rubber_band_x = event->x;
tree_view->priv->rubber_band_y = event->y + tree_view->priv->dy;
tree_view->priv->rubber_band_status = RUBBER_BAND_MAYBE_START;
if ((event->state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
tree_view->priv->rubber_band_ctrl = TRUE;
if ((event->state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
tree_view->priv->rubber_band_shift = TRUE;
}
}
/* Test if a double click happened on the same row. */
if (event->button == 1 && event->type == GDK_BUTTON_PRESS)
{
int double_click_time, double_click_distance;
g_object_get (gtk_settings_get_default (),
"gtk-double-click-time", &double_click_time,
"gtk-double-click-distance", &double_click_distance,
NULL);
/* Same conditions as _gdk_event_button_generate */
if (tree_view->priv->last_button_x != -1 &&
(event->time < tree_view->priv->last_button_time + double_click_time) &&
(ABS (event->x - tree_view->priv->last_button_x) <= double_click_distance) &&
(ABS (event->y - tree_view->priv->last_button_y) <= double_click_distance))
{
/* We do no longer compare paths of this row and the
* row clicked previously. We use the double click
* distance to decide whether this is a valid click,
* allowing the mouse to slightly move over another row.
*/
row_double_click = TRUE;
tree_view->priv->last_button_time = 0;
tree_view->priv->last_button_x = -1;
tree_view->priv->last_button_y = -1;
}
else
{
tree_view->priv->last_button_time = event->time;
tree_view->priv->last_button_x = event->x;
tree_view->priv->last_button_y = event->y;
}
}
if (row_double_click)
{
gtk_grab_remove (widget);
gtk_tree_view_row_activated (tree_view, path, column);
if (tree_view->priv->pressed_button == event->button)
tree_view->priv->pressed_button = -1;
}
gtk_tree_path_free (path);
/* If we activated the row through a double click we don't want to grab
* focus back, as moving focus to another widget is pretty common.
*/
if (!row_double_click)
grab_focus_and_unset_draw_keyfocus (tree_view);
return TRUE;
}
/* We didn't click in the window. Let's check to see if we clicked on a column resize window.
*/
for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
{
column = list->data;
if (event->window == column->window &&
column->resizable &&
column->window)
{
GtkAllocation button_allocation;
gpointer drag_data;
if (event->type == GDK_2BUTTON_PRESS &&
gtk_tree_view_column_get_sizing (column) != GTK_TREE_VIEW_COLUMN_AUTOSIZE)
{
column->use_resized_width = FALSE;
_gtk_tree_view_column_autosize (tree_view, column);
return TRUE;
}
if (gdk_pointer_grab (column->window, FALSE,
GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL, NULL, event->time))
return FALSE;
gtk_grab_add (widget);
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
column->resized_width = column->width - tree_view->priv->last_extra_space_per_column;
/* block attached dnd signal handler */
drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
if (drag_data)
g_signal_handlers_block_matched (widget,
G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL,
drag_data);
gtk_widget_get_allocation (column->button, &button_allocation);
tree_view->priv->drag_pos = i;
tree_view->priv->x_drag = button_allocation.x + (rtl ? 0 : button_allocation.width);
if (!gtk_widget_has_focus (widget))
gtk_widget_grab_focus (widget);
return TRUE;
}
}
return FALSE;
}
/* GtkWidget::button_release_event helper */
static gboolean
gtk_tree_view_button_release_drag_column (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view;
GList *l;
gboolean rtl;
tree_view = GTK_TREE_VIEW (widget);
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
gdk_display_pointer_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
gdk_display_keyboard_ungrab (gtk_widget_get_display (widget), GDK_CURRENT_TIME);
/* Move the button back */
g_object_ref (tree_view->priv->drag_column->button);
gtk_container_remove (GTK_CONTAINER (tree_view), tree_view->priv->drag_column->button);
gtk_widget_set_parent_window (tree_view->priv->drag_column->button, tree_view->priv->header_window);
gtk_widget_set_parent (tree_view->priv->drag_column->button, GTK_WIDGET (tree_view));
g_object_unref (tree_view->priv->drag_column->button);
gtk_widget_queue_resize (widget);
if (tree_view->priv->drag_column->resizable)
{
gdk_window_raise (tree_view->priv->drag_column->window);
gdk_window_show (tree_view->priv->drag_column->window);
}
else
gdk_window_hide (tree_view->priv->drag_column->window);
gtk_widget_grab_focus (tree_view->priv->drag_column->button);
if (rtl)
{
if (tree_view->priv->cur_reorder &&
tree_view->priv->cur_reorder->right_column != tree_view->priv->drag_column)
gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
tree_view->priv->cur_reorder->right_column);
}
else
{
if (tree_view->priv->cur_reorder &&
tree_view->priv->cur_reorder->left_column != tree_view->priv->drag_column)
gtk_tree_view_move_column_after (tree_view, tree_view->priv->drag_column,
tree_view->priv->cur_reorder->left_column);
}
tree_view->priv->drag_column = NULL;
gdk_window_hide (tree_view->priv->drag_window);
for (l = tree_view->priv->column_drag_info; l != NULL; l = l->next)
g_slice_free (GtkTreeViewColumnReorder, l->data);
g_list_free (tree_view->priv->column_drag_info);
tree_view->priv->column_drag_info = NULL;
tree_view->priv->cur_reorder = NULL;
if (tree_view->priv->drag_highlight_window)
gdk_window_hide (tree_view->priv->drag_highlight_window);
/* Reset our flags */
tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_UNSET;
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
return TRUE;
}
/* GtkWidget::button_release_event helper */
static gboolean
gtk_tree_view_button_release_column_resize (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view;
gpointer drag_data;
tree_view = GTK_TREE_VIEW (widget);
tree_view->priv->drag_pos = -1;
/* unblock attached dnd signal handler */
drag_data = g_object_get_data (G_OBJECT (widget), "gtk-site-data");
if (drag_data)
g_signal_handlers_unblock_matched (widget,
G_SIGNAL_MATCH_DATA,
0, 0, NULL, NULL,
drag_data);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
gtk_grab_remove (widget);
gdk_display_pointer_ungrab (gdk_window_get_display (event->window),
event->time);
return TRUE;
}
static gboolean
gtk_tree_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
return gtk_tree_view_button_release_drag_column (widget, event);
if (tree_view->priv->rubber_band_status)
gtk_tree_view_stop_rubber_band (tree_view);
if (tree_view->priv->pressed_button == event->button)
tree_view->priv->pressed_button = -1;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
return gtk_tree_view_button_release_column_resize (widget, event);
if (tree_view->priv->button_pressed_node == NULL)
return FALSE;
if (event->button == 1)
{
gtk_grab_remove (widget);
if (tree_view->priv->button_pressed_node == tree_view->priv->prelight_node &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
{
GtkTreePath *path = NULL;
path = _gtk_tree_view_find_path (tree_view,
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node);
/* Actually activate the node */
if (tree_view->priv->button_pressed_node->children == NULL)
gtk_tree_view_real_expand_row (tree_view, path,
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node,
FALSE, TRUE);
else
gtk_tree_view_real_collapse_row (GTK_TREE_VIEW (widget), path,
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node, TRUE);
gtk_tree_path_free (path);
}
tree_view->priv->button_pressed_tree = NULL;
tree_view->priv->button_pressed_node = NULL;
}
return TRUE;
}
static gboolean
gtk_tree_view_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
gtk_tree_view_button_release_drag_column (widget, (GdkEventButton *)event);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
gtk_tree_view_button_release_column_resize (widget, (GdkEventButton *)event);
return TRUE;
}
#if 0
static gboolean
gtk_tree_view_configure (GtkWidget *widget,
GdkEventConfigure *event)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (widget);
tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window);
return FALSE;
}
#endif
/* GtkWidget::motion_event function set.
*/
static gboolean
coords_are_over_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in bin window coords */
gint x,
gint y)
{
GdkRectangle arrow;
gint x2;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return FALSE;
if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
return FALSE;
arrow.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
arrow.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
gtk_tree_view_get_arrow_xrange (tree_view, tree, &arrow.x, &x2);
arrow.width = x2 - arrow.x;
return (x >= arrow.x &&
x < (arrow.x + arrow.width) &&
y >= arrow.y &&
y < (arrow.y + arrow.height));
}
static gboolean
auto_expand_timeout (gpointer data)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (data);
GtkTreePath *path;
if (tree_view->priv->prelight_node)
{
path = _gtk_tree_view_find_path (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node);
if (tree_view->priv->prelight_node->children)
gtk_tree_view_collapse_row (tree_view, path);
else
gtk_tree_view_expand_row (tree_view, path, FALSE);
gtk_tree_path_free (path);
}
tree_view->priv->auto_expand_timeout = 0;
return FALSE;
}
static void
remove_auto_expand_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->auto_expand_timeout != 0)
{
g_source_remove (tree_view->priv->auto_expand_timeout);
tree_view->priv->auto_expand_timeout = 0;
}
}
static void
do_prelight (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in bin_window coords */
gint x,
gint y)
{
if (tree_view->priv->prelight_tree == tree &&
tree_view->priv->prelight_node == node)
{
/* We are still on the same node,
but we might need to take care of the arrow */
if (tree && node && TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
gboolean over_arrow;
gboolean flag_set;
over_arrow = coords_are_over_arrow (tree_view, tree, node, x, y);
flag_set = GTK_TREE_VIEW_FLAG_SET (tree_view,
GTK_TREE_VIEW_ARROW_PRELIT);
if (over_arrow != flag_set)
{
if (over_arrow)
GTK_TREE_VIEW_SET_FLAG (tree_view,
GTK_TREE_VIEW_ARROW_PRELIT);
else
GTK_TREE_VIEW_UNSET_FLAG (tree_view,
GTK_TREE_VIEW_ARROW_PRELIT);
gtk_tree_view_queue_draw_arrow (tree_view, tree, node);
}
}
return;
}
if (tree_view->priv->prelight_tree && tree_view->priv->prelight_node)
{
/* Unprelight the old node and arrow */
GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node,
GTK_RBNODE_IS_PRELIT);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)
&& TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
gtk_tree_view_queue_draw_arrow (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node);
}
_gtk_tree_view_queue_draw_node (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
NULL);
}
if (tree_view->priv->hover_expand)
remove_auto_expand_timeout (tree_view);
/* Set the new prelight values */
tree_view->priv->prelight_node = node;
tree_view->priv->prelight_tree = tree;
if (!node || !tree)
return;
/* Prelight the new node and arrow */
if (TREE_VIEW_DRAW_EXPANDERS (tree_view)
&& coords_are_over_arrow (tree_view, tree, node, x, y))
{
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
gtk_tree_view_queue_draw_arrow (tree_view, tree, node);
}
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
if (tree_view->priv->hover_expand)
{
tree_view->priv->auto_expand_timeout =
gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, auto_expand_timeout, tree_view);
}
}
static void
prelight_or_select (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in bin_window coords */
gint x,
gint y)
{
GtkSelectionMode mode = gtk_tree_selection_get_mode (tree_view->priv->selection);
if (tree_view->priv->hover_selection &&
(mode == GTK_SELECTION_SINGLE || mode == GTK_SELECTION_BROWSE) &&
!(tree_view->priv->edited_column &&
tree_view->priv->edited_column->editable_widget))
{
if (node)
{
if (!GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
{
GtkTreePath *path;
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_selection_select_path (tree_view->priv->selection, path);
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
{
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_tree_view_real_set_cursor (tree_view, path, FALSE, FALSE);
}
gtk_tree_path_free (path);
}
}
else if (mode == GTK_SELECTION_SINGLE)
gtk_tree_selection_unselect_all (tree_view->priv->selection);
}
do_prelight (tree_view, tree, node, x, y);
}
static void
ensure_unprelighted (GtkTreeView *tree_view)
{
do_prelight (tree_view,
NULL, NULL,
-1000, -1000); /* coords not possibly over an arrow */
g_assert (tree_view->priv->prelight_node == NULL);
}
static void
update_prelight (GtkTreeView *tree_view,
gint x,
gint y)
{
int new_y;
GtkRBTree *tree;
GtkRBNode *node;
if (tree_view->priv->tree == NULL)
return;
if (x == -10000)
{
ensure_unprelighted (tree_view);
return;
}
new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y);
if (new_y < 0)
new_y = 0;
_gtk_rbtree_find_offset (tree_view->priv->tree,
new_y, &tree, &node);
if (node)
prelight_or_select (tree_view, tree, node, x, y);
}
/* Our motion arrow is either a box (in the case of the original spot)
* or an arrow. It is expander_size wide.
*/
/*
* 11111111111111
* 01111111111110
* 00111111111100
* 00011111111000
* 00001111110000
* 00000111100000
* 00000111100000
* 00000111100000
* ~ ~ ~ ~ ~ ~ ~
* 00000111100000
* 00000111100000
* 00000111100000
* 00001111110000
* 00011111111000
* 00111111111100
* 01111111111110
* 11111111111111
*/
static void
gtk_tree_view_motion_draw_column_motion_arrow (GtkTreeView *tree_view)
{
GtkTreeViewColumnReorder *reorder = tree_view->priv->cur_reorder;
GtkWidget *widget = GTK_WIDGET (tree_view);
cairo_surface_t *mask_image;
cairo_region_t *mask_region;
gint x;
gint y;
gint width;
gint height;
gint arrow_type = DRAG_COLUMN_WINDOW_STATE_UNSET;
GdkWindowAttr attributes;
guint attributes_mask;
cairo_t *cr;
if (!reorder ||
reorder->left_column == tree_view->priv->drag_column ||
reorder->right_column == tree_view->priv->drag_column)
arrow_type = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
else if (reorder->left_column || reorder->right_column)
{
GtkAllocation left_allocation, right_allocation;
GdkRectangle visible_rect;
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
if (reorder->left_column)
{
gtk_widget_get_allocation (reorder->left_column->button, &left_allocation);
x = left_allocation.x + left_allocation.width;
}
else
{
gtk_widget_get_allocation (reorder->right_column->button, &right_allocation);
x = right_allocation.x;
}
if (x < visible_rect.x)
arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT;
else if (x > visible_rect.x + visible_rect.width)
arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT;
else
arrow_type = DRAG_COLUMN_WINDOW_STATE_ARROW;
}
/* We want to draw the rectangle over the initial location. */
if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
{
if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ORIGINAL)
{
GtkAllocation drag_allocation;
if (tree_view->priv->drag_highlight_window)
{
gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
NULL);
gdk_window_destroy (tree_view->priv->drag_highlight_window);
}
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.x = tree_view->priv->drag_column_x;
attributes.y = 0;
gtk_widget_get_allocation (tree_view->priv->drag_column->button, &drag_allocation);
width = attributes.width = drag_allocation.width;
height = attributes.height = drag_allocation.height;
attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
tree_view->priv->drag_highlight_window = gdk_window_new (tree_view->priv->header_window, &attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
mask_image = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
cr = cairo_create (mask_image);
cairo_rectangle (cr, 1, 1, width - 2, height - 2);
cairo_stroke (cr);
cairo_destroy (cr);
mask_region = gdk_cairo_region_create_from_surface (mask_image);
gdk_window_shape_combine_region (tree_view->priv->drag_highlight_window,
mask_region, 0, 0);
cairo_region_destroy (mask_region);
cairo_surface_destroy (mask_image);
tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ORIGINAL;
}
}
else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW)
{
GtkAllocation button_allocation;
width = tree_view->priv->expander_size;
/* Get x, y, width, height of arrow */
gdk_window_get_origin (tree_view->priv->header_window, &x, &y);
if (reorder->left_column)
{
gtk_widget_get_allocation (reorder->left_column->button, &button_allocation);
x += button_allocation.x + button_allocation.width - width/2;
height = button_allocation.height;
}
else
{
gtk_widget_get_allocation (reorder->right_column->button, &button_allocation);
x += button_allocation.x - width/2;
height = button_allocation.height;
}
y -= tree_view->priv->expander_size/2; /* The arrow takes up only half the space */
height += tree_view->priv->expander_size;
/* Create the new window */
if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW)
{
if (tree_view->priv->drag_highlight_window)
{
gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
NULL);
gdk_window_destroy (tree_view->priv->drag_highlight_window);
}
attributes.window_type = GDK_WINDOW_TEMP;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
attributes.x = x;
attributes.y = y;
attributes.width = width;
attributes.height = height;
tree_view->priv->drag_highlight_window = gdk_window_new (gtk_widget_get_root_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
mask_image = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
cr = cairo_create (mask_image);
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, width, 0);
cairo_line_to (cr, width / 2., width / 2);
cairo_move_to (cr, 0, height);
cairo_line_to (cr, width, height);
cairo_line_to (cr, width / 2., height - width / 2.);
cairo_fill (cr);
cairo_destroy (cr);
mask_region = gdk_cairo_region_create_from_surface (mask_image);
gdk_window_shape_combine_region (tree_view->priv->drag_highlight_window,
mask_region, 0, 0);
cairo_region_destroy (mask_region);
cairo_surface_destroy (mask_image);
}
tree_view->priv->drag_column_window_state = DRAG_COLUMN_WINDOW_STATE_ARROW;
gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
}
else if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT ||
arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
{
GtkAllocation allocation;
width = tree_view->priv->expander_size;
/* Get x, y, width, height of arrow */
width = width/2; /* remember, the arrow only takes half the available width */
gdk_window_get_origin (gtk_widget_get_window (widget),
&x, &y);
if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
{
gtk_widget_get_allocation (widget, &allocation);
x += allocation.width - width;
}
if (reorder->left_column)
{
gtk_widget_get_allocation (reorder->left_column->button, &allocation);
height = allocation.height;
}
else
{
gtk_widget_get_allocation (reorder->right_column->button, &allocation);
height = allocation.height;
}
y -= tree_view->priv->expander_size;
height += 2*tree_view->priv->expander_size;
/* Create the new window */
if (tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT &&
tree_view->priv->drag_column_window_state != DRAG_COLUMN_WINDOW_STATE_ARROW_RIGHT)
{
if (tree_view->priv->drag_highlight_window)
{
gdk_window_set_user_data (tree_view->priv->drag_highlight_window,
NULL);
gdk_window_destroy (tree_view->priv->drag_highlight_window);
}
attributes.window_type = GDK_WINDOW_TEMP;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
attributes.x = x;
attributes.y = y;
attributes.width = width;
attributes.height = height;
tree_view->priv->drag_highlight_window = gdk_window_new (NULL, &attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->drag_highlight_window, GTK_WIDGET (tree_view));
mask_image = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
cr = cairo_create (mask_image);
/* mirror if we're on the left */
if (arrow_type == DRAG_COLUMN_WINDOW_STATE_ARROW_LEFT)
{
cairo_translate (cr, width, 0);
cairo_scale (cr, -1, 1);
}
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, width, width);
cairo_line_to (cr, 0, tree_view->priv->expander_size);
cairo_move_to (cr, 0, height);
cairo_line_to (cr, width, height - width);
cairo_line_to (cr, 0, height - tree_view->priv->expander_size);
cairo_fill (cr);
cairo_destroy (cr);
mask_region = gdk_cairo_region_create_from_surface (mask_image);
gdk_window_shape_combine_region (tree_view->priv->drag_highlight_window,
mask_region, 0, 0);
cairo_region_destroy (mask_region);
cairo_surface_destroy (mask_image);
}
tree_view->priv->drag_column_window_state = arrow_type;
gdk_window_move (tree_view->priv->drag_highlight_window, x, y);
}
else
{
g_warning (G_STRLOC"Invalid GtkTreeViewColumnReorder struct");
gdk_window_hide (tree_view->priv->drag_highlight_window);
return;
}
gdk_window_show (tree_view->priv->drag_highlight_window);
gdk_window_raise (tree_view->priv->drag_highlight_window);
}
static gboolean
gtk_tree_view_motion_resize_column (GtkWidget *widget,
GdkEventMotion *event)
{
gint x;
gint new_width;
GtkTreeViewColumn *column;
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
column = gtk_tree_view_get_column (tree_view, tree_view->priv->drag_pos);
if (event->is_hint || event->window != gtk_widget_get_window (widget))
gtk_widget_get_pointer (widget, &x, NULL);
else
x = event->x;
if (tree_view->priv->hadjustment)
x += tree_view->priv->hadjustment->value;
new_width = gtk_tree_view_new_column_width (tree_view,
tree_view->priv->drag_pos, &x);
if (x != tree_view->priv->x_drag &&
(new_width != column->fixed_width))
{
column->use_resized_width = TRUE;
column->resized_width = new_width;
if (column->expand)
column->resized_width -= tree_view->priv->last_extra_space_per_column;
gtk_widget_queue_resize (widget);
}
return FALSE;
}
static void
gtk_tree_view_update_current_reorder (GtkTreeView *tree_view)
{
GtkTreeViewColumnReorder *reorder = NULL;
GList *list;
gint mouse_x;
gdk_window_get_pointer (tree_view->priv->header_window, &mouse_x, NULL, NULL);
for (list = tree_view->priv->column_drag_info; list; list = list->next)
{
reorder = (GtkTreeViewColumnReorder *) list->data;
if (mouse_x >= reorder->left_align && mouse_x < reorder->right_align)
break;
reorder = NULL;
}
/* if (reorder && reorder == tree_view->priv->cur_reorder)
return;*/
tree_view->priv->cur_reorder = reorder;
gtk_tree_view_motion_draw_column_motion_arrow (tree_view);
}
static void
gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
{
GdkRectangle visible_rect;
gint y;
gint offset;
gdk_window_get_pointer (tree_view->priv->bin_window, NULL, &y, NULL);
y += tree_view->priv->dy;
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
/* see if we are near the edge. */
offset = y - (visible_rect.y + 2 * SCROLL_EDGE_SIZE);
if (offset > 0)
{
offset = y - (visible_rect.y + visible_rect.height - 2 * SCROLL_EDGE_SIZE);
if (offset < 0)
return;
}
gtk_adjustment_set_value (tree_view->priv->vadjustment,
MAX (tree_view->priv->vadjustment->value + offset, 0.0));
}
static gboolean
gtk_tree_view_horizontal_autoscroll (GtkTreeView *tree_view)
{
GdkRectangle visible_rect;
gint x;
gint offset;
gdk_window_get_pointer (tree_view->priv->bin_window, &x, NULL, NULL);
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
/* See if we are near the edge. */
offset = x - (visible_rect.x + SCROLL_EDGE_SIZE);
if (offset > 0)
{
offset = x - (visible_rect.x + visible_rect.width - SCROLL_EDGE_SIZE);
if (offset < 0)
return TRUE;
}
offset = offset/3;
gtk_adjustment_set_value (tree_view->priv->hadjustment,
MAX (tree_view->priv->hadjustment->value + offset, 0.0));
return TRUE;
}
static gboolean
gtk_tree_view_motion_drag_column (GtkWidget *widget,
GdkEventMotion *event)
{
GtkAllocation allocation, button_allocation;
GtkTreeView *tree_view = (GtkTreeView *) widget;
GtkTreeViewColumn *column = tree_view->priv->drag_column;
gint x, y;
/* Sanity Check */
if ((column == NULL) ||
(event->window != tree_view->priv->drag_window))
return FALSE;
/* Handle moving the header */
gdk_window_get_position (tree_view->priv->drag_window, &x, &y);
gtk_widget_get_allocation (widget, &allocation);
gtk_widget_get_allocation (column->button, &button_allocation);
x = CLAMP (x + (gint)event->x - column->drag_x, 0,
MAX (tree_view->priv->width, allocation.width) - button_allocation.width);
gdk_window_move (tree_view->priv->drag_window, x, y);
/* autoscroll, if needed */
gtk_tree_view_horizontal_autoscroll (tree_view);
/* Update the current reorder position and arrow; */
gtk_tree_view_update_current_reorder (tree_view);
return TRUE;
}
static void
gtk_tree_view_stop_rubber_band (GtkTreeView *tree_view)
{
remove_scroll_timeout (tree_view);
gtk_grab_remove (GTK_WIDGET (tree_view));
if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
{
GtkTreePath *tmp_path;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
/* The anchor path should be set to the start path */
tmp_path = _gtk_tree_view_find_path (tree_view,
tree_view->priv->rubber_band_start_tree,
tree_view->priv->rubber_band_start_node);
if (tree_view->priv->anchor)
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor =
gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
tree_view->priv->model,
tmp_path);
gtk_tree_path_free (tmp_path);
/* ... and the cursor to the end path */
tmp_path = _gtk_tree_view_find_path (tree_view,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node);
gtk_tree_view_real_set_cursor (GTK_TREE_VIEW (tree_view), tmp_path, FALSE, FALSE);
gtk_tree_path_free (tmp_path);
_gtk_tree_selection_emit_changed (tree_view->priv->selection);
}
/* Clear status variables */
tree_view->priv->rubber_band_status = RUBBER_BAND_OFF;
tree_view->priv->rubber_band_shift = 0;
tree_view->priv->rubber_band_ctrl = 0;
tree_view->priv->rubber_band_start_node = NULL;
tree_view->priv->rubber_band_start_tree = NULL;
tree_view->priv->rubber_band_end_node = NULL;
tree_view->priv->rubber_band_end_tree = NULL;
}
static void
gtk_tree_view_update_rubber_band_selection_range (GtkTreeView *tree_view,
GtkRBTree *start_tree,
GtkRBNode *start_node,
GtkRBTree *end_tree,
GtkRBNode *end_node,
gboolean select,
gboolean skip_start,
gboolean skip_end)
{
if (start_node == end_node)
return;
/* We skip the first node and jump inside the loop */
if (skip_start)
goto skip_first;
do
{
/* Small optimization by assuming insensitive nodes are never
* selected.
*/
if (!GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
{
GtkTreePath *path;
gboolean selectable;
path = _gtk_tree_view_find_path (tree_view, start_tree, start_node);
selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection, start_node, path);
gtk_tree_path_free (path);
if (!selectable)
goto node_not_selectable;
}
if (select)
{
if (tree_view->priv->rubber_band_shift)
GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
else if (tree_view->priv->rubber_band_ctrl)
{
/* Toggle the selection state */
if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
else
GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
}
else
GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
}
else
{
/* Mirror the above */
if (tree_view->priv->rubber_band_shift)
GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
else if (tree_view->priv->rubber_band_ctrl)
{
/* Toggle the selection state */
if (GTK_RBNODE_FLAG_SET (start_node, GTK_RBNODE_IS_SELECTED))
GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
else
GTK_RBNODE_SET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
}
else
GTK_RBNODE_UNSET_FLAG (start_node, GTK_RBNODE_IS_SELECTED);
}
_gtk_tree_view_queue_draw_node (tree_view, start_tree, start_node, NULL);
node_not_selectable:
if (start_node == end_node)
break;
skip_first:
if (start_node->children)
{
start_tree = start_node->children;
start_node = start_tree->root;
while (start_node->left != start_tree->nil)
start_node = start_node->left;
}
else
{
_gtk_rbtree_next_full (start_tree, start_node, &start_tree, &start_node);
if (!start_tree)
/* Ran out of tree */
break;
}
if (skip_end && start_node == end_node)
break;
}
while (TRUE);
}
static void
gtk_tree_view_update_rubber_band_selection (GtkTreeView *tree_view)
{
GtkRBTree *start_tree, *end_tree;
GtkRBNode *start_node, *end_node;
_gtk_rbtree_find_offset (tree_view->priv->tree, MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y), &start_tree, &start_node);
_gtk_rbtree_find_offset (tree_view->priv->tree, MAX (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y), &end_tree, &end_node);
/* Handle the start area first */
if (!tree_view->priv->rubber_band_start_node)
{
gtk_tree_view_update_rubber_band_selection_range (tree_view,
start_tree,
start_node,
end_tree,
end_node,
TRUE,
FALSE,
FALSE);
}
else if (_gtk_rbtree_node_find_offset (start_tree, start_node) <
_gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
{
/* New node is above the old one; selection became bigger */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
start_tree,
start_node,
tree_view->priv->rubber_band_start_tree,
tree_view->priv->rubber_band_start_node,
TRUE,
FALSE,
TRUE);
}
else if (_gtk_rbtree_node_find_offset (start_tree, start_node) >
_gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_start_tree, tree_view->priv->rubber_band_start_node))
{
/* New node is below the old one; selection became smaller */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
tree_view->priv->rubber_band_start_tree,
tree_view->priv->rubber_band_start_node,
start_tree,
start_node,
FALSE,
FALSE,
TRUE);
}
tree_view->priv->rubber_band_start_tree = start_tree;
tree_view->priv->rubber_band_start_node = start_node;
/* Next, handle the end area */
if (!tree_view->priv->rubber_band_end_node)
{
/* In the event this happens, start_node was also NULL; this case is
* handled above.
*/
}
else if (!end_node)
{
/* Find the last node in the tree */
_gtk_rbtree_find_offset (tree_view->priv->tree, tree_view->priv->height - 1,
&end_tree, &end_node);
/* Selection reached end of the tree */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node,
end_tree,
end_node,
TRUE,
TRUE,
FALSE);
}
else if (_gtk_rbtree_node_find_offset (end_tree, end_node) >
_gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
{
/* New node is below the old one; selection became bigger */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node,
end_tree,
end_node,
TRUE,
TRUE,
FALSE);
}
else if (_gtk_rbtree_node_find_offset (end_tree, end_node) <
_gtk_rbtree_node_find_offset (tree_view->priv->rubber_band_end_tree, tree_view->priv->rubber_band_end_node))
{
/* New node is above the old one; selection became smaller */
gtk_tree_view_update_rubber_band_selection_range (tree_view,
end_tree,
end_node,
tree_view->priv->rubber_band_end_tree,
tree_view->priv->rubber_band_end_node,
FALSE,
TRUE,
FALSE);
}
tree_view->priv->rubber_band_end_tree = end_tree;
tree_view->priv->rubber_band_end_node = end_node;
}
static void
gtk_tree_view_update_rubber_band (GtkTreeView *tree_view)
{
gint x, y;
GdkRectangle old_area;
GdkRectangle new_area;
GdkRectangle common;
cairo_region_t *invalid_region;
old_area.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
old_area.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
old_area.width = ABS (tree_view->priv->rubber_band_x - tree_view->priv->press_start_x) + 1;
old_area.height = ABS (tree_view->priv->rubber_band_y - tree_view->priv->press_start_y) + 1;
gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, NULL);
x = MAX (x, 0);
y = MAX (y, 0) + tree_view->priv->dy;
new_area.x = MIN (tree_view->priv->press_start_x, x);
new_area.y = MIN (tree_view->priv->press_start_y, y) - tree_view->priv->dy;
new_area.width = ABS (x - tree_view->priv->press_start_x) + 1;
new_area.height = ABS (y - tree_view->priv->press_start_y) + 1;
invalid_region = cairo_region_create_rectangle (&old_area);
cairo_region_union_rectangle (invalid_region, &new_area);
gdk_rectangle_intersect (&old_area, &new_area, &common);
if (common.width > 2 && common.height > 2)
{
cairo_region_t *common_region;
/* make sure the border is invalidated */
common.x += 1;
common.y += 1;
common.width -= 2;
common.height -= 2;
common_region = cairo_region_create_rectangle (&common);
cairo_region_subtract (invalid_region, common_region);
cairo_region_destroy (common_region);
}
gdk_window_invalidate_region (tree_view->priv->bin_window, invalid_region, TRUE);
cairo_region_destroy (invalid_region);
tree_view->priv->rubber_band_x = x;
tree_view->priv->rubber_band_y = y;
gtk_tree_view_update_rubber_band_selection (tree_view);
}
static void
gtk_tree_view_paint_rubber_band (GtkTreeView *tree_view,
cairo_t *cr)
{
GdkRectangle rect;
GtkStyle *style;
cairo_save (cr);
rect.x = MIN (tree_view->priv->press_start_x, tree_view->priv->rubber_band_x);
rect.y = MIN (tree_view->priv->press_start_y, tree_view->priv->rubber_band_y) - tree_view->priv->dy;
rect.width = ABS (tree_view->priv->press_start_x - tree_view->priv->rubber_band_x) + 1;
rect.height = ABS (tree_view->priv->press_start_y - tree_view->priv->rubber_band_y) + 1;
cairo_set_line_width (cr, 1.0);
style = gtk_widget_get_style (GTK_WIDGET (tree_view));
gdk_cairo_set_source_color (cr, &style->fg[GTK_STATE_NORMAL]);
gdk_cairo_rectangle (cr, &rect);
cairo_clip (cr);
cairo_paint_with_alpha (cr, 0.25);
cairo_rectangle (cr,
rect.x + 0.5, rect.y + 0.5,
rect.width - 1, rect.height - 1);
cairo_stroke (cr);
cairo_restore (cr);
}
static gboolean
gtk_tree_view_motion_bin_window (GtkWidget *widget,
GdkEventMotion *event)
{
GtkTreeView *tree_view;
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
tree_view = (GtkTreeView *) widget;
if (tree_view->priv->tree == NULL)
return FALSE;
if (tree_view->priv->rubber_band_status == RUBBER_BAND_MAYBE_START)
{
gtk_grab_add (GTK_WIDGET (tree_view));
gtk_tree_view_update_rubber_band (tree_view);
tree_view->priv->rubber_band_status = RUBBER_BAND_ACTIVE;
}
else if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
{
gtk_tree_view_update_rubber_band (tree_view);
add_scroll_timeout (tree_view);
}
/* only check for an initiated drag when a button is pressed */
if (tree_view->priv->pressed_button >= 0
&& !tree_view->priv->rubber_band_status)
gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
if (new_y < 0)
new_y = 0;
_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
/* If we are currently pressing down a button, we don't want to prelight anything else. */
if ((tree_view->priv->button_pressed_node != NULL) &&
(tree_view->priv->button_pressed_node != node))
node = NULL;
tree_view->priv->event_last_x = event->x;
tree_view->priv->event_last_y = event->y;
prelight_or_select (tree_view, tree, node, event->x, event->y);
return TRUE;
}
static gboolean
gtk_tree_view_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkTreeView *tree_view;
tree_view = (GtkTreeView *) widget;
/* Resizing a column */
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
return gtk_tree_view_motion_resize_column (widget, event);
/* Drag column */
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
return gtk_tree_view_motion_drag_column (widget, event);
/* Sanity check it */
if (event->window == tree_view->priv->bin_window)
return gtk_tree_view_motion_bin_window (widget, event);
return FALSE;
}
/* Invalidate the focus rectangle near the edge of the bin_window; used when
* the tree is empty.
*/
static void
invalidate_empty_focus (GtkTreeView *tree_view)
{
GdkRectangle area;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
area.x = 0;
area.y = 0;
area.width = gdk_window_get_width (tree_view->priv->bin_window);
area.height = gdk_window_get_height (tree_view->priv->bin_window);
gdk_window_invalidate_rect (tree_view->priv->bin_window, &area, FALSE);
}
/* Draws a focus rectangle near the edge of the bin_window; used when the tree
* is empty.
*/
static void
draw_empty_focus (GtkTreeView *tree_view, cairo_t *cr)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
gint w, h;
if (!gtk_widget_has_focus (widget))
return;
w = gdk_window_get_width (tree_view->priv->bin_window) - 2;
h = gdk_window_get_height (tree_view->priv->bin_window) - 2;
if (w > 0 && h > 0)
gtk_paint_focus (gtk_widget_get_style (widget),
cr,
gtk_widget_get_state (widget),
widget,
NULL,
1, 1, w, h);
}
typedef enum {
GTK_TREE_VIEW_GRID_LINE,
GTK_TREE_VIEW_TREE_LINE,
GTK_TREE_VIEW_FOREGROUND_LINE
} GtkTreeViewLineType;
static void
gtk_tree_view_draw_line (GtkTreeView *tree_view,
cairo_t *cr,
GtkTreeViewLineType type,
int x1,
int y1,
int x2,
int y2)
{
cairo_save (cr);
switch (type)
{
case GTK_TREE_VIEW_TREE_LINE:
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_set_line_width (cr, tree_view->priv->tree_line_width);
if (tree_view->priv->tree_line_dashes[0])
cairo_set_dash (cr,
tree_view->priv->tree_line_dashes,
2, 0.5);
break;
case GTK_TREE_VIEW_GRID_LINE:
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_set_line_width (cr, tree_view->priv->grid_line_width);
if (tree_view->priv->grid_line_dashes[0])
cairo_set_dash (cr,
tree_view->priv->grid_line_dashes,
2, 0.5);
break;
default:
g_assert_not_reached ();
/* fall through */
case GTK_TREE_VIEW_FOREGROUND_LINE:
cairo_set_line_width (cr, 1.0);
gdk_cairo_set_source_color (cr,
&gtk_widget_get_style (GTK_WIDGET (tree_view))->fg[gtk_widget_get_state (GTK_WIDGET (tree_view))]);
break;
}
cairo_move_to (cr, x1 + 0.5, y1 + 0.5);
cairo_line_to (cr, x2 + 0.5, y2 + 0.5);
cairo_stroke (cr);
cairo_restore (cr);
}
static void
gtk_tree_view_draw_grid_lines (GtkTreeView *tree_view,
cairo_t *cr,
gint n_visible_columns)
{
GList *list = tree_view->priv->columns;
gint i = 0;
gint current_x = 0;
if (tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_VERTICAL
&& tree_view->priv->grid_lines != GTK_TREE_VIEW_GRID_LINES_BOTH)
return;
/* Only draw the lines for visible rows and columns */
for (list = tree_view->priv->columns; list; list = list->next, i++)
{
GtkTreeViewColumn *column = list->data;
/* We don't want a line for the last column */
if (i == n_visible_columns - 1)
break;
if (! column->visible)
continue;
current_x += column->width;
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_GRID_LINE,
current_x - 1, 0,
current_x - 1, tree_view->priv->height);
}
}
/* Warning: Very scary function.
* Modify at your own risk
*
* KEEP IN SYNC WITH gtk_tree_view_create_row_drag_icon()!
* FIXME: It's not...
*/
static gboolean
gtk_tree_view_bin_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkTreePath *path;
GtkStyle *style;
GtkRBTree *tree;
GList *list;
GtkRBNode *node;
GtkRBNode *cursor = NULL;
GtkRBTree *cursor_tree = NULL;
GtkRBNode *drag_highlight = NULL;
GtkRBTree *drag_highlight_tree = NULL;
GtkTreeIter iter;
gint new_y;
gint y_offset, cell_offset;
gint max_height;
gint depth;
GdkRectangle background_area;
GdkRectangle cell_area;
GdkRectangle clip;
guint flags;
gint highlight_x;
gint expander_cell_width;
gint bin_window_width;
gint bin_window_height;
GtkTreePath *cursor_path;
GtkTreePath *drag_dest_path;
GList *first_column, *last_column;
gint vertical_separator;
gint horizontal_separator;
gint focus_line_width;
gboolean allow_rules;
gboolean has_special_cell;
gboolean rtl;
gint n_visible_columns;
gint pointer_x, pointer_y;
gint grid_line_width;
gboolean got_pointer = FALSE;
gboolean draw_vgrid_lines, draw_hgrid_lines;
rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
gtk_widget_style_get (widget,
"horizontal-separator", &horizontal_separator,
"vertical-separator", &vertical_separator,
"allow-rules", &allow_rules,
"focus-line-width", &focus_line_width,
NULL);
if (tree_view->priv->tree == NULL)
{
draw_empty_focus (tree_view, cr);
return TRUE;
}
style = gtk_widget_get_style (widget);
bin_window_width = gdk_window_get_width (tree_view->priv->bin_window);
bin_window_height = gdk_window_get_height (tree_view->priv->bin_window);
cairo_rectangle (cr, 0, 0, bin_window_width, bin_window_height);
cairo_clip (cr);
if (!gdk_cairo_get_clip_rectangle (cr, &clip))
return TRUE;
new_y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, clip.y);
if (new_y < 0)
new_y = 0;
y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
if (tree_view->priv->height < bin_window_height)
{
gtk_paint_flat_box (style,
cr,
gtk_widget_get_state (widget),
GTK_SHADOW_NONE,
widget,
"cell_even",
0, tree_view->priv->height,
bin_window_width,
bin_window_height - tree_view->priv->height);
}
if (node == NULL)
return TRUE;
/* find the path for the node */
path = _gtk_tree_view_find_path ((GtkTreeView *)widget,
tree,
node);
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
depth = gtk_tree_path_get_depth (path);
gtk_tree_path_free (path);
cursor_path = NULL;
drag_dest_path = NULL;
if (tree_view->priv->cursor)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (cursor_path)
_gtk_tree_view_find_node (tree_view, cursor_path,
&cursor_tree, &cursor);
if (tree_view->priv->drag_dest_row)
drag_dest_path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
if (drag_dest_path)
_gtk_tree_view_find_node (tree_view, drag_dest_path,
&drag_highlight_tree, &drag_highlight);
draw_vgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
draw_hgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
if (draw_vgrid_lines || draw_hgrid_lines)
gtk_widget_style_get (widget, "grid-line-width", &grid_line_width, NULL);
n_visible_columns = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
if (! GTK_TREE_VIEW_COLUMN (list->data)->visible)
continue;
n_visible_columns ++;
}
/* Find the last column */
for (last_column = g_list_last (tree_view->priv->columns);
last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
last_column = last_column->prev)
;
/* and the first */
for (first_column = g_list_first (tree_view->priv->columns);
first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
first_column = first_column->next)
;
/* Actually process the expose event. To do this, we want to
* start at the first node of the event, and walk the tree in
* order, drawing each successive node.
*/
do
{
gboolean parity;
gboolean is_separator = FALSE;
gboolean is_first = FALSE;
gboolean is_last = FALSE;
is_separator = row_is_separator (tree_view, &iter, NULL);
max_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
cell_offset = 0;
highlight_x = 0; /* should match x coord of first cell */
expander_cell_width = 0;
background_area.y = y_offset + clip.y;
background_area.height = max_height;
flags = 0;
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PRELIT))
flags |= GTK_CELL_RENDERER_PRELIT;
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
flags |= GTK_CELL_RENDERER_SELECTED;
parity = _gtk_rbtree_node_find_parity (tree, node);
/* we *need* to set cell data on all cells before the call
* to _has_special_cell, else _has_special_cell() does not
* return a correct value.
*/
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
}
has_special_cell = gtk_tree_view_has_special_cell (tree_view);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
const gchar *detail = NULL;
gchar new_detail[128];
GtkStateType state;
if (!column->visible)
continue;
if (cell_offset > clip.x + clip.width ||
cell_offset + column->width < clip.x)
{
cell_offset += column->width;
continue;
}
if (column->show_sort_indicator)
flags |= GTK_CELL_RENDERER_SORTED;
else
flags &= ~GTK_CELL_RENDERER_SORTED;
if (cursor == node)
flags |= GTK_CELL_RENDERER_FOCUSED;
else
flags &= ~GTK_CELL_RENDERER_FOCUSED;
background_area.x = cell_offset;
background_area.width = column->width;
cell_area = background_area;
cell_area.y += vertical_separator / 2;
cell_area.x += horizontal_separator / 2;
cell_area.height -= vertical_separator;
cell_area.width -= horizontal_separator;
if (draw_vgrid_lines)
{
if (list == first_column)
{
cell_area.width -= grid_line_width / 2;
}
else if (list == last_column)
{
cell_area.x += grid_line_width / 2;
cell_area.width -= grid_line_width / 2;
}
else
{
cell_area.x += grid_line_width / 2;
cell_area.width -= grid_line_width;
}
}
if (draw_hgrid_lines)
{
cell_area.y += grid_line_width / 2;
cell_area.height -= grid_line_width;
}
if (!gdk_rectangle_intersect (&clip, &background_area, NULL))
{
cell_offset += column->width;
continue;
}
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
/* Select the detail for drawing the cell. relevant
* factors are parity, sortedness, and whether to
* display rules.
*/
if (allow_rules && tree_view->priv->has_rules)
{
if ((flags & GTK_CELL_RENDERER_SORTED) &&
n_visible_columns >= 3)
{
if (parity)
detail = "cell_odd_ruled_sorted";
else
detail = "cell_even_ruled_sorted";
}
else
{
if (parity)
detail = "cell_odd_ruled";
else
detail = "cell_even_ruled";
}
}
else
{
if ((flags & GTK_CELL_RENDERER_SORTED) &&
n_visible_columns >= 3)
{
if (parity)
detail = "cell_odd_sorted";
else
detail = "cell_even_sorted";
}
else
{
if (parity)
detail = "cell_odd";
else
detail = "cell_even";
}
}
g_assert (detail);
if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE)
state = GTK_STATE_INSENSITIVE;
else if (flags & GTK_CELL_RENDERER_SELECTED)
state = GTK_STATE_SELECTED;
else
state = GTK_STATE_NORMAL;
/* Draw background */
is_first = (rtl ? !list->next : !list->prev);
is_last = (rtl ? !list->prev : !list->next);
/* (I don't like the snprintfs either, but couldn't find a
* less messy way).
*/
if (is_first && is_last)
g_snprintf (new_detail, 127, "%s", detail);
else if (is_first)
g_snprintf (new_detail, 127, "%s_start", detail);
else if (is_last)
g_snprintf (new_detail, 127, "%s_end", detail);
else
g_snprintf (new_detail, 127, "%s_middle", detail);
gtk_paint_flat_box (style,
cr,
state,
GTK_SHADOW_NONE,
widget,
new_detail,
background_area.x,
background_area.y,
background_area.width,
background_area.height);
if (gtk_tree_view_is_expander_column (tree_view, column))
{
if (!rtl)
cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
if (!rtl)
cell_area.x += depth * tree_view->priv->expander_size;
cell_area.width -= depth * tree_view->priv->expander_size;
}
/* If we have an expander column, the highlight underline
* starts with that column, so that it indicates which
* level of the tree we're dropping at.
*/
highlight_x = cell_area.x;
expander_cell_width = cell_area.width;
if (is_separator)
gtk_paint_hline (style,
cr,
state,
widget,
NULL,
cell_area.x,
cell_area.x + cell_area.width,
cell_area.y + cell_area.height / 2);
else
_gtk_tree_view_column_cell_render (column,
cr,
&background_area,
&cell_area,
flags);
if (TREE_VIEW_DRAW_EXPANDERS(tree_view)
&& (node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
{
if (!got_pointer)
{
gdk_window_get_pointer (tree_view->priv->bin_window,
&pointer_x, &pointer_y, NULL);
got_pointer = TRUE;
}
gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
cr,
tree,
node,
pointer_x, pointer_y);
}
}
else
{
if (is_separator)
gtk_paint_hline (style,
cr,
state,
widget,
NULL,
cell_area.x,
cell_area.x + cell_area.width,
cell_area.y + cell_area.height / 2);
else
_gtk_tree_view_column_cell_render (column,
cr,
&background_area,
&cell_area,
flags);
}
if (draw_hgrid_lines)
{
if (background_area.y > 0)
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_GRID_LINE,
background_area.x, background_area.y,
background_area.x + background_area.width,
background_area.y);
if (y_offset + max_height >= clip.height)
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_GRID_LINE,
background_area.x, background_area.y + max_height,
background_area.x + background_area.width,
background_area.y + max_height);
}
if (gtk_tree_view_is_expander_column (tree_view, column) &&
tree_view->priv->tree_lines_enabled)
{
gint x = background_area.x;
gint mult = rtl ? -1 : 1;
gint y0 = background_area.y;
gint y1 = background_area.y + background_area.height/2;
gint y2 = background_area.y + background_area.height;
if (rtl)
x += background_area.width - 1;
if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT
&& depth > 1)
{
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_TREE_LINE,
x + tree_view->priv->expander_size * (depth - 1.5) * mult,
y1,
x + tree_view->priv->expander_size * (depth - 1.1) * mult,
y1);
}
else if (depth > 1)
{
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_TREE_LINE,
x + tree_view->priv->expander_size * (depth - 1.5) * mult,
y1,
x + tree_view->priv->expander_size * (depth - 0.5) * mult,
y1);
}
if (depth > 1)
{
gint i;
GtkRBNode *tmp_node;
GtkRBTree *tmp_tree;
if (!_gtk_rbtree_next (tree, node))
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_TREE_LINE,
x + tree_view->priv->expander_size * (depth - 1.5) * mult,
y0,
x + tree_view->priv->expander_size * (depth - 1.5) * mult,
y1);
else
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_TREE_LINE,
x + tree_view->priv->expander_size * (depth - 1.5) * mult,
y0,
x + tree_view->priv->expander_size * (depth - 1.5) * mult,
y2);
tmp_node = tree->parent_node;
tmp_tree = tree->parent_tree;
for (i = depth - 2; i > 0; i--)
{
if (_gtk_rbtree_next (tmp_tree, tmp_node))
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_TREE_LINE,
x + tree_view->priv->expander_size * (i - 0.5) * mult,
y0,
x + tree_view->priv->expander_size * (i - 0.5) * mult,
y2);
tmp_node = tmp_tree->parent_node;
tmp_tree = tmp_tree->parent_tree;
}
}
}
if (node == cursor && has_special_cell &&
((column == tree_view->priv->focus_column &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
gtk_widget_has_focus (widget)) ||
(column == tree_view->priv->edited_column)))
{
_gtk_tree_view_column_cell_draw_focus (column,
cr,
&background_area,
&cell_area,
flags);
}
cell_offset += column->width;
}
if (node == drag_highlight)
{
/* Draw indicator for the drop
*/
gint highlight_y = -1;
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
switch (tree_view->priv->drag_dest_pos)
{
case GTK_TREE_VIEW_DROP_BEFORE:
highlight_y = background_area.y - 1;
if (highlight_y < 0)
highlight_y = 0;
break;
case GTK_TREE_VIEW_DROP_AFTER:
highlight_y = background_area.y + background_area.height - 1;
break;
case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
_gtk_tree_view_find_node (tree_view, drag_dest_path, &tree, &node);
if (tree == NULL)
break;
gtk_paint_focus (style,
cr,
gtk_widget_get_state (widget),
widget,
(is_first
? (is_last ? "treeview-drop-indicator" : "treeview-drop-indicator-left" )
: (is_last ? "treeview-drop-indicator-right" : "tree-view-drop-indicator-middle" )),
0, BACKGROUND_FIRST_PIXEL (tree_view, tree, node)
- focus_line_width / 2,
gdk_window_get_width (tree_view->priv->bin_window),
ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
- focus_line_width + 1);
break;
}
if (highlight_y >= 0)
{
gtk_tree_view_draw_line (tree_view, cr,
GTK_TREE_VIEW_FOREGROUND_LINE,
rtl ? highlight_x + expander_cell_width : highlight_x,
highlight_y,
rtl ? 0 : bin_window_width,
highlight_y);
}
}
/* draw the big row-spanning focus rectangle, if needed */
if (!has_special_cell && node == cursor &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS) &&
gtk_widget_has_focus (widget))
{
gint tmp_y, tmp_height;
GtkStateType focus_rect_state;
focus_rect_state =
flags & GTK_CELL_RENDERER_SELECTED ? GTK_STATE_SELECTED :
(flags & GTK_CELL_RENDERER_PRELIT ? GTK_STATE_PRELIGHT :
(flags & GTK_CELL_RENDERER_INSENSITIVE ? GTK_STATE_INSENSITIVE :
GTK_STATE_NORMAL));
if (draw_hgrid_lines)
{
tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node) + grid_line_width / 2;
tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node)) - grid_line_width;
}
else
{
tmp_y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
tmp_height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
}
gtk_paint_focus (style,
cr,
focus_rect_state,
widget,
(is_first
? (is_last ? "treeview" : "treeview-left" )
: (is_last ? "treeview-right" : "treeview-middle" )),
0, tmp_y,
gdk_window_get_width (tree_view->priv->bin_window),
tmp_height);
}
y_offset += max_height;
if (node->children)
{
GtkTreeIter parent = iter;
gboolean has_child;
tree = node->children;
node = tree->root;
g_assert (node != tree->nil);
while (node->left != tree->nil)
node = node->left;
has_child = gtk_tree_model_iter_children (tree_view->priv->model,
&iter,
&parent);
depth++;
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
}
else
{
gboolean done = FALSE;
do
{
node = _gtk_rbtree_next (tree, node);
if (node != NULL)
{
gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
done = TRUE;
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
}
else
{
GtkTreeIter parent_iter = iter;
gboolean has_parent;
node = tree->parent_node;
tree = tree->parent_tree;
if (tree == NULL)
/* we should go to done to free some memory */
goto done;
has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
&iter,
&parent_iter);
depth--;
/* Sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
}
}
while (!done);
}
}
while (y_offset < clip.height);
done:
gtk_tree_view_draw_grid_lines (tree_view, cr, n_visible_columns);
if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
gtk_tree_view_paint_rubber_band (tree_view, cr);
if (cursor_path)
gtk_tree_path_free (cursor_path);
if (drag_dest_path)
gtk_tree_path_free (drag_dest_path);
return FALSE;
}
static gboolean
gtk_tree_view_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (gtk_cairo_should_draw_window (cr, tree_view->priv->bin_window))
{
GList *tmp_list;
cairo_save (cr);
gtk_cairo_transform_to_window (cr, widget, tree_view->priv->bin_window);
gtk_tree_view_bin_draw (widget, cr);
cairo_restore (cr);
/* We can't just chain up to Container::draw as it will try to send the
* event to the headers, so we handle propagating it to our children
* (eg. widgets being edited) ourselves.
*/
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
gtk_container_propagate_draw (GTK_CONTAINER (tree_view), child->widget, cr);
}
}
if (gtk_cairo_should_draw_window (cr, tree_view->priv->header_window))
{
GList *list;
for (list = tree_view->priv->columns; list != NULL; list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (column == tree_view->priv->drag_column)
continue;
if (column->visible)
gtk_container_propagate_draw (GTK_CONTAINER (tree_view),
column->button,
cr);
}
}
if (tree_view->priv->drag_window &&
gtk_cairo_should_draw_window (cr, tree_view->priv->drag_window))
{
gtk_container_propagate_draw (GTK_CONTAINER (tree_view),
tree_view->priv->drag_column->button,
cr);
}
return TRUE;
}
enum
{
DROP_HOME,
DROP_RIGHT,
DROP_LEFT,
DROP_END
};
/* returns 0x1 when no column has been found -- yes it's hackish */
static GtkTreeViewColumn *
gtk_tree_view_get_drop_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint drop_position)
{
GtkTreeViewColumn *left_column = NULL;
GtkTreeViewColumn *cur_column = NULL;
GList *tmp_list;
if (!column->reorderable)
return (GtkTreeViewColumn *)0x1;
switch (drop_position)
{
case DROP_HOME:
/* find first column where we can drop */
tmp_list = tree_view->priv->columns;
if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
return (GtkTreeViewColumn *)0x1;
while (tmp_list)
{
g_assert (tmp_list);
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->next;
if (left_column && left_column->visible == FALSE)
continue;
if (!tree_view->priv->column_drop_func)
return left_column;
if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
{
left_column = cur_column;
continue;
}
return left_column;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
return left_column;
else
return (GtkTreeViewColumn *)0x1;
break;
case DROP_RIGHT:
/* find first column after column where we can drop */
tmp_list = tree_view->priv->columns;
for (; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
break;
if (!tmp_list || !tmp_list->next)
return (GtkTreeViewColumn *)0x1;
tmp_list = tmp_list->next;
left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->next;
while (tmp_list)
{
g_assert (tmp_list);
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->next;
if (left_column && left_column->visible == FALSE)
{
left_column = cur_column;
if (tmp_list)
tmp_list = tmp_list->next;
continue;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (!tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
{
left_column = cur_column;
continue;
}
return left_column;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data))
return left_column;
else
return (GtkTreeViewColumn *)0x1;
break;
case DROP_LEFT:
/* find first column before column where we can drop */
tmp_list = tree_view->priv->columns;
for (; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data) == column)
break;
if (!tmp_list || !tmp_list->prev)
return (GtkTreeViewColumn *)0x1;
tmp_list = tmp_list->prev;
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = tmp_list->prev;
while (tmp_list)
{
g_assert (tmp_list);
left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
if (left_column && !left_column->visible)
{
/*if (!tmp_list->prev)
return (GtkTreeViewColumn *)0x1;
*/
/*
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->prev->data);
tmp_list = tmp_list->prev->prev;
continue;*/
cur_column = left_column;
if (tmp_list)
tmp_list = tmp_list->prev;
continue;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
return left_column;
cur_column = left_column;
tmp_list = tmp_list->prev;
}
if (!tree_view->priv->column_drop_func)
return NULL;
if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
return NULL;
else
return (GtkTreeViewColumn *)0x1;
break;
case DROP_END:
/* same as DROP_HOME case, but doing it backwards */
tmp_list = g_list_last (tree_view->priv->columns);
cur_column = NULL;
if (column == GTK_TREE_VIEW_COLUMN (tmp_list->data))
return (GtkTreeViewColumn *)0x1;
while (tmp_list)
{
g_assert (tmp_list);
left_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
if (left_column && !left_column->visible)
{
cur_column = left_column;
tmp_list = tmp_list->prev;
}
if (!tree_view->priv->column_drop_func)
return left_column;
if (tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
return left_column;
cur_column = left_column;
tmp_list = tmp_list->prev;
}
if (!tree_view->priv->column_drop_func)
return NULL;
if (tree_view->priv->column_drop_func (tree_view, column, NULL, cur_column, tree_view->priv->column_drop_func_data))
return NULL;
else
return (GtkTreeViewColumn *)0x1;
break;
}
return (GtkTreeViewColumn *)0x1;
}
static gboolean
gtk_tree_view_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkTreeView *tree_view = (GtkTreeView *) widget;
if (tree_view->priv->rubber_band_status)
{
if (event->keyval == GDK_KEY_Escape)
gtk_tree_view_stop_rubber_band (tree_view);
return TRUE;
}
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG))
{
if (event->keyval == GDK_KEY_Escape)
{
tree_view->priv->cur_reorder = NULL;
gtk_tree_view_button_release_drag_column (widget, NULL);
}
return TRUE;
}
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
{
GList *focus_column;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (focus_column = tree_view->priv->columns;
focus_column;
focus_column = focus_column->next)
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
if (gtk_widget_has_focus (column->button))
break;
}
if (focus_column &&
(event->state & GDK_SHIFT_MASK) && (event->state & GDK_MOD1_MASK) &&
(event->keyval == GDK_KEY_Left || event->keyval == GDK_KEY_KP_Left
|| event->keyval == GDK_KEY_Right || event->keyval == GDK_KEY_KP_Right))
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
if (!column->resizable)
{
gtk_widget_error_bell (widget);
return TRUE;
}
if (event->keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left)
|| event->keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left))
{
GtkRequisition button_req;
gint old_width = column->resized_width;
gtk_widget_get_preferred_size (column->button, &button_req, NULL);
column->resized_width = MAX (column->resized_width,
column->width);
column->resized_width -= 2;
if (column->resized_width < 0)
column->resized_width = 0;
if (column->min_width == -1)
column->resized_width = MAX (button_req.width,
column->resized_width);
else
{
column->resized_width = MAX (column->min_width,
column->resized_width);
}
if (column->max_width != -1)
column->resized_width = MIN (column->resized_width,
column->max_width);
column->use_resized_width = TRUE;
if (column->resized_width != old_width)
gtk_widget_queue_resize (widget);
else
gtk_widget_error_bell (widget);
}
else if (event->keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right)
|| event->keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right))
{
gint old_width = column->resized_width;
column->resized_width = MAX (column->resized_width,
column->width);
column->resized_width += 2;
if (column->max_width != -1)
column->resized_width = MIN (column->resized_width,
column->max_width);
column->use_resized_width = TRUE;
if (column->resized_width != old_width)
gtk_widget_queue_resize (widget);
else
gtk_widget_error_bell (widget);
}
return TRUE;
}
if (focus_column &&
(event->state & GDK_MOD1_MASK) &&
(event->keyval == GDK_KEY_Left || event->keyval == GDK_KEY_KP_Left
|| event->keyval == GDK_KEY_Right || event->keyval == GDK_KEY_KP_Right
|| event->keyval == GDK_KEY_Home || event->keyval == GDK_KEY_KP_Home
|| event->keyval == GDK_KEY_End || event->keyval == GDK_KEY_KP_End))
{
GtkTreeViewColumn *column = GTK_TREE_VIEW_COLUMN (focus_column->data);
if (event->keyval == (rtl ? GDK_KEY_Right : GDK_KEY_Left)
|| event->keyval == (rtl ? GDK_KEY_KP_Right : GDK_KEY_KP_Left))
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_LEFT);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
else if (event->keyval == (rtl ? GDK_KEY_Left : GDK_KEY_Right)
|| event->keyval == (rtl ? GDK_KEY_KP_Left : GDK_KEY_KP_Right))
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_RIGHT);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
else if (event->keyval == GDK_KEY_Home || event->keyval == GDK_KEY_KP_Home)
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_HOME);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
else if (event->keyval == GDK_KEY_End || event->keyval == GDK_KEY_KP_End)
{
GtkTreeViewColumn *col;
col = gtk_tree_view_get_drop_column (tree_view, column, DROP_END);
if (col != (GtkTreeViewColumn *)0x1)
gtk_tree_view_move_column_after (tree_view, column, col);
else
gtk_widget_error_bell (widget);
}
return TRUE;
}
}
/* Chain up to the parent class. It handles the keybindings. */
if (GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_press_event (widget, event))
return TRUE;
if (tree_view->priv->search_entry_avoid_unhandled_binding)
{
tree_view->priv->search_entry_avoid_unhandled_binding = FALSE;
return FALSE;
}
/* We pass the event to the search_entry. If its text changes, then we start
* the typeahead find capabilities. */
if (gtk_widget_has_focus (GTK_WIDGET (tree_view))
&& tree_view->priv->enable_search
&& !tree_view->priv->search_custom_entry_set)
{
GdkEvent *new_event;
char *old_text;
const char *new_text;
gboolean retval;
GdkScreen *screen;
gboolean text_modified;
gulong popup_menu_id;
gtk_tree_view_ensure_interactive_directory (tree_view);
/* Make a copy of the current text */
old_text = g_strdup (gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry)));
new_event = gdk_event_copy ((GdkEvent *) event);
g_object_unref (((GdkEventKey *) new_event)->window);
((GdkEventKey *) new_event)->window = g_object_ref (gtk_widget_get_window (tree_view->priv->search_window));
gtk_widget_realize (tree_view->priv->search_window);
popup_menu_id = g_signal_connect (tree_view->priv->search_entry,
"popup-menu", G_CALLBACK (gtk_true),
NULL);
/* Move the entry off screen */
screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
gtk_window_move (GTK_WINDOW (tree_view->priv->search_window),
gdk_screen_get_width (screen) + 1,
gdk_screen_get_height (screen) + 1);
gtk_widget_show (tree_view->priv->search_window);
/* Send the event to the window. If the preedit_changed signal is emitted
* during this event, we will set priv->imcontext_changed */
tree_view->priv->imcontext_changed = FALSE;
retval = gtk_widget_event (tree_view->priv->search_window, new_event);
gdk_event_free (new_event);
gtk_widget_hide (tree_view->priv->search_window);
g_signal_handler_disconnect (tree_view->priv->search_entry,
popup_menu_id);
/* We check to make sure that the entry tried to handle the text, and that
* the text has changed.
*/
new_text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
text_modified = strcmp (old_text, new_text) != 0;
g_free (old_text);
if (tree_view->priv->imcontext_changed || /* we're in a preedit */
(retval && text_modified)) /* ...or the text was modified */
{
if (gtk_tree_view_real_start_interactive_search (tree_view,
gdk_event_get_device ((GdkEvent *) event),
FALSE))
{
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
return TRUE;
}
else
{
gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
return FALSE;
}
}
}
return FALSE;
}
static gboolean
gtk_tree_view_key_release (GtkWidget *widget,
GdkEventKey *event)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->rubber_band_status)
return TRUE;
return GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->key_release_event (widget, event);
}
/* FIXME Is this function necessary? Can I get an enter_notify event
* w/o either an expose event or a mouse motion event?
*/
static gboolean
gtk_tree_view_enter_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
/* Sanity check it */
if (event->window != tree_view->priv->bin_window)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
if (event->mode == GDK_CROSSING_GRAB ||
event->mode == GDK_CROSSING_GTK_GRAB ||
event->mode == GDK_CROSSING_GTK_UNGRAB ||
event->mode == GDK_CROSSING_STATE_CHANGED)
return TRUE;
/* find the node internally */
new_y = TREE_WINDOW_Y_TO_RBTREE_Y(tree_view, event->y);
if (new_y < 0)
new_y = 0;
_gtk_rbtree_find_offset (tree_view->priv->tree, new_y, &tree, &node);
tree_view->priv->event_last_x = event->x;
tree_view->priv->event_last_y = event->y;
if ((tree_view->priv->button_pressed_node == NULL) ||
(tree_view->priv->button_pressed_node == node))
prelight_or_select (tree_view, tree, node, event->x, event->y);
return TRUE;
}
static gboolean
gtk_tree_view_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkTreeView *tree_view;
if (event->mode == GDK_CROSSING_GRAB)
return TRUE;
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->prelight_node)
_gtk_tree_view_queue_draw_node (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
NULL);
tree_view->priv->event_last_x = -10000;
tree_view->priv->event_last_y = -10000;
prelight_or_select (tree_view,
NULL, NULL,
-1000, -1000); /* coords not possibly over an arrow */
return TRUE;
}
static gint
gtk_tree_view_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (widget);
gtk_widget_queue_draw (widget);
/* destroy interactive search dialog */
if (tree_view->priv->search_window)
gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view,
gdk_event_get_device ((GdkEvent *) event));
return FALSE;
}
/* Incremental Reflow
*/
static void
gtk_tree_view_node_queue_redraw (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
GtkAllocation allocation;
gint y;
y = _gtk_rbtree_node_find_offset (tree, node)
- tree_view->priv->vadjustment->value
+ TREE_VIEW_HEADER_HEIGHT (tree_view);
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
0, y,
allocation.width,
GTK_RBNODE_GET_HEIGHT (node));
}
static gboolean
node_is_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
int y;
int height;
y = _gtk_rbtree_node_find_offset (tree, node);
height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
if (y >= tree_view->priv->vadjustment->value &&
y + height <= (tree_view->priv->vadjustment->value
+ tree_view->priv->vadjustment->page_size))
return TRUE;
return FALSE;
}
/* Returns TRUE if it updated the size
*/
static gboolean
validate_row (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
GtkTreeIter *iter,
GtkTreePath *path)
{
GtkTreeViewColumn *column;
GList *list, *first_column, *last_column;
gint height = 0;
gint horizontal_separator;
gint vertical_separator;
gint focus_line_width;
gint depth = gtk_tree_path_get_depth (path);
gboolean retval = FALSE;
gboolean is_separator = FALSE;
gboolean draw_vgrid_lines, draw_hgrid_lines;
gint focus_pad;
gint grid_line_width;
gboolean wide_separators;
gint separator_height;
/* double check the row needs validating */
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) &&
! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
return FALSE;
is_separator = row_is_separator (tree_view, iter, NULL);
gtk_widget_style_get (GTK_WIDGET (tree_view),
"focus-padding", &focus_pad,
"focus-line-width", &focus_line_width,
"horizontal-separator", &horizontal_separator,
"vertical-separator", &vertical_separator,
"grid-line-width", &grid_line_width,
"wide-separators", &wide_separators,
"separator-height", &separator_height,
NULL);
draw_vgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_VERTICAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
draw_hgrid_lines =
tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_HORIZONTAL
|| tree_view->priv->grid_lines == GTK_TREE_VIEW_GRID_LINES_BOTH;
for (last_column = g_list_last (tree_view->priv->columns);
last_column && !(GTK_TREE_VIEW_COLUMN (last_column->data)->visible);
last_column = last_column->prev)
;
for (first_column = g_list_first (tree_view->priv->columns);
first_column && !(GTK_TREE_VIEW_COLUMN (first_column->data)->visible);
first_column = first_column->next)
;
for (list = tree_view->priv->columns; list; list = list->next)
{
gint tmp_width;
gint tmp_height;
column = list->data;
if (! column->visible)
continue;
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID) && !column->dirty)
continue;
gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, iter,
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
gtk_tree_view_column_cell_get_size (column,
NULL, NULL, NULL,
&tmp_width, &tmp_height);
if (!is_separator)
{
tmp_height += vertical_separator;
height = MAX (height, tmp_height);
height = MAX (height, tree_view->priv->expander_size);
}
else
{
if (wide_separators)
height = separator_height + 2 * focus_pad;
else
height = 2 + 2 * focus_pad;
}
if (gtk_tree_view_is_expander_column (tree_view, column))
{
tmp_width = tmp_width + horizontal_separator + (depth - 1) * tree_view->priv->level_indentation;
if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
tmp_width += depth * tree_view->priv->expander_size;
}
else
tmp_width = tmp_width + horizontal_separator;
if (draw_vgrid_lines)
{
if (list->data == first_column || list->data == last_column)
tmp_width += grid_line_width / 2.0;
else
tmp_width += grid_line_width;
}
if (tmp_width > column->requested_width)
{
retval = TRUE;
column->requested_width = tmp_width;
}
}
if (draw_hgrid_lines)
height += grid_line_width;
if (height != GTK_RBNODE_GET_HEIGHT (node))
{
retval = TRUE;
_gtk_rbtree_node_set_height (tree, node, height);
}
_gtk_rbtree_node_mark_valid (tree, node);
tree_view->priv->post_validation_flag = TRUE;
return retval;
}
static void
validate_visible_area (GtkTreeView *tree_view)
{
GtkAllocation allocation;
GtkTreePath *path = NULL;
GtkTreePath *above_path = NULL;
GtkTreeIter iter;
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
gboolean need_redraw = FALSE;
gboolean size_changed = FALSE;
gint total_height;
gint area_above = 0;
gint area_below = 0;
if (tree_view->priv->tree == NULL)
return;
if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID) &&
tree_view->priv->scroll_to_path == NULL)
return;
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
total_height = allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
if (total_height == 0)
return;
/* First, we check to see if we need to scroll anywhere
*/
if (tree_view->priv->scroll_to_path)
{
path = gtk_tree_row_reference_get_path (tree_view->priv->scroll_to_path);
if (path && !_gtk_tree_view_find_node (tree_view, path, &tree, &node))
{
/* we are going to scroll, and will update dy */
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
{
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
if (validate_row (tree_view, tree, node, &iter, path))
size_changed = TRUE;
}
if (tree_view->priv->scroll_to_use_align)
{
gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
area_above = (total_height - height) *
tree_view->priv->scroll_to_row_align;
area_below = total_height - area_above - height;
area_above = MAX (area_above, 0);
area_below = MAX (area_below, 0);
}
else
{
/* two cases:
* 1) row not visible
* 2) row visible
*/
gint dy;
gint height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
dy = _gtk_rbtree_node_find_offset (tree, node);
if (dy >= tree_view->priv->vadjustment->value &&
dy + height <= (tree_view->priv->vadjustment->value
+ tree_view->priv->vadjustment->page_size))
{
/* row visible: keep the row at the same position */
area_above = dy - tree_view->priv->vadjustment->value;
area_below = (tree_view->priv->vadjustment->value +
tree_view->priv->vadjustment->page_size)
- dy - height;
}
else
{
/* row not visible */
if (dy >= 0
&& dy + height <= tree_view->priv->vadjustment->page_size)
{
/* row at the beginning -- fixed */
area_above = dy;
area_below = tree_view->priv->vadjustment->page_size
- area_above - height;
}
else if (dy >= (tree_view->priv->vadjustment->upper -
tree_view->priv->vadjustment->page_size))
{
/* row at the end -- fixed */
area_above = dy - (tree_view->priv->vadjustment->upper -
tree_view->priv->vadjustment->page_size);
area_below = tree_view->priv->vadjustment->page_size -
area_above - height;
if (area_below < 0)
{
area_above = tree_view->priv->vadjustment->page_size - height;
area_below = 0;
}
}
else
{
/* row somewhere in the middle, bring it to the top
* of the view
*/
area_above = 0;
area_below = total_height - height;
}
}
}
}
else
/* the scroll to isn't valid; ignore it.
*/
{
if (tree_view->priv->scroll_to_path && !path)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (path)
gtk_tree_path_free (path);
path = NULL;
}
}
/* We didn't have a scroll_to set, so we just handle things normally
*/
if (path == NULL)
{
gint offset;
offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
&tree, &node);
if (node == NULL)
{
/* In this case, nothing has been validated */
path = gtk_tree_path_new_first ();
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
}
else
{
path = _gtk_tree_view_find_path (tree_view, tree, node);
total_height += offset;
}
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
{
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
if (validate_row (tree_view, tree, node, &iter, path))
size_changed = TRUE;
}
area_above = 0;
area_below = total_height - ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
}
above_path = gtk_tree_path_copy (path);
/* if we do not validate any row above the new top_row, we will make sure
* that the row immediately above top_row has been validated. (if we do not
* do this, _gtk_rbtree_find_offset will find the row above top_row, because
* when invalidated that row's height will be zero. and this will mess up
* scrolling).
*/
if (area_above == 0)
{
GtkRBTree *tmptree;
GtkRBNode *tmpnode;
_gtk_tree_view_find_node (tree_view, above_path, &tmptree, &tmpnode);
_gtk_rbtree_prev_full (tmptree, tmpnode, &tmptree, &tmpnode);
if (tmpnode)
{
GtkTreePath *tmppath;
GtkTreeIter tmpiter;
tmppath = _gtk_tree_view_find_path (tree_view, tmptree, tmpnode);
gtk_tree_model_get_iter (tree_view->priv->model, &tmpiter, tmppath);
if (GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_INVALID) ||
GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_COLUMN_INVALID))
{
_gtk_tree_view_queue_draw_node (tree_view, tmptree, tmpnode, NULL);
if (validate_row (tree_view, tmptree, tmpnode, &tmpiter, tmppath))
size_changed = TRUE;
}
gtk_tree_path_free (tmppath);
}
}
/* Now, we walk forwards and backwards, measuring rows. Unfortunately,
* backwards is much slower then forward, as there is no iter_prev function.
* We go forwards first in case we run out of tree. Then we go backwards to
* fill out the top.
*/
while (node && area_below > 0)
{
if (node->children)
{
GtkTreeIter parent = iter;
gboolean has_child;
tree = node->children;
node = tree->root;
g_assert (node != tree->nil);
while (node->left != tree->nil)
node = node->left;
has_child = gtk_tree_model_iter_children (tree_view->priv->model,
&iter,
&parent);
TREE_VIEW_INTERNAL_ASSERT_VOID (has_child);
gtk_tree_path_down (path);
}
else
{
gboolean done = FALSE;
do
{
node = _gtk_rbtree_next (tree, node);
if (node != NULL)
{
gboolean has_next = gtk_tree_model_iter_next (tree_view->priv->model, &iter);
done = TRUE;
gtk_tree_path_next (path);
/* Sanity Check! */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_next);
}
else
{
GtkTreeIter parent_iter = iter;
gboolean has_parent;
node = tree->parent_node;
tree = tree->parent_tree;
if (tree == NULL)
break;
has_parent = gtk_tree_model_iter_parent (tree_view->priv->model,
&iter,
&parent_iter);
gtk_tree_path_up (path);
/* Sanity check */
TREE_VIEW_INTERNAL_ASSERT_VOID (has_parent);
}
}
while (!done);
}
if (!node)
break;
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
{
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
if (validate_row (tree_view, tree, node, &iter, path))
size_changed = TRUE;
}
area_below -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
}
gtk_tree_path_free (path);
/* If we ran out of tree, and have extra area_below left, we need to add it
* to area_above */
if (area_below > 0)
area_above += area_below;
_gtk_tree_view_find_node (tree_view, above_path, &tree, &node);
/* We walk backwards */
while (area_above > 0)
{
_gtk_rbtree_prev_full (tree, node, &tree, &node);
/* Always find the new path in the tree. We cannot just assume
* a gtk_tree_path_prev() is enough here, as there might be children
* in between this node and the previous sibling node. If this
* appears to be a performance hotspot in profiles, we can look into
* intrigate logic for keeping path, node and iter in sync like
* we do for forward walks. (Which will be hard because of the lacking
* iter_prev).
*/
if (node == NULL)
break;
gtk_tree_path_free (above_path);
above_path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, above_path);
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
{
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
if (validate_row (tree_view, tree, node, &iter, above_path))
size_changed = TRUE;
}
area_above -= ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
}
/* if we scrolled to a path, we need to set the dy here,
* and sync the top row accordingly
*/
if (tree_view->priv->scroll_to_path)
{
gtk_tree_view_set_top_row (tree_view, above_path, -area_above);
gtk_tree_view_top_row_to_dy (tree_view);
need_redraw = TRUE;
}
else if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
{
/* when we are not scrolling, we should never set dy to something
* else than zero. we update top_row to be in sync with dy = 0.
*/
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
gtk_tree_view_dy_to_top_row (tree_view);
}
else if (tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
{
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), tree_view->priv->height - tree_view->priv->vadjustment->page_size);
gtk_tree_view_dy_to_top_row (tree_view);
}
else
gtk_tree_view_top_row_to_dy (tree_view);
/* update width/height and queue a resize */
if (size_changed)
{
GtkRequisition requisition;
/* We temporarily guess a size, under the assumption that it will be the
* same when we get our next size_allocate. If we don't do this, we'll be
* in an inconsistent state if we call top_row_to_dy. */
gtk_widget_get_preferred_size (GTK_WIDGET (tree_view),
&requisition, NULL);
tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
gtk_adjustment_changed (tree_view->priv->hadjustment);
gtk_adjustment_changed (tree_view->priv->vadjustment);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
if (tree_view->priv->scroll_to_path)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (above_path)
gtk_tree_path_free (above_path);
if (tree_view->priv->scroll_to_column)
{
tree_view->priv->scroll_to_column = NULL;
}
if (need_redraw)
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static void
initialize_fixed_height_mode (GtkTreeView *tree_view)
{
if (!tree_view->priv->tree)
return;
if (tree_view->priv->fixed_height < 0)
{
GtkTreeIter iter;
GtkTreePath *path;
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
tree = tree_view->priv->tree;
node = tree->root;
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
validate_row (tree_view, tree, node, &iter, path);
gtk_tree_path_free (path);
tree_view->priv->fixed_height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
}
_gtk_rbtree_set_fixed_height (tree_view->priv->tree,
tree_view->priv->fixed_height, TRUE);
}
/* Our strategy for finding nodes to validate is a little convoluted. We find
* the left-most uninvalidated node. We then try walking right, validating
* nodes. Once we find a valid node, we repeat the previous process of finding
* the first invalid node.
*/
static gboolean
do_validate_rows (GtkTreeView *tree_view, gboolean queue_resize)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
gboolean validated_area = FALSE;
gint retval = TRUE;
GtkTreePath *path = NULL;
GtkTreeIter iter;
GTimer *timer;
gint i = 0;
gint prev_height = -1;
gboolean fixed_height = TRUE;
g_assert (tree_view);
if (tree_view->priv->tree == NULL)
return FALSE;
if (tree_view->priv->fixed_height_mode)
{
if (tree_view->priv->fixed_height < 0)
initialize_fixed_height_mode (tree_view);
return FALSE;
}
timer = g_timer_new ();
g_timer_start (timer);
do
{
if (! GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
{
retval = FALSE;
goto done;
}
if (path != NULL)
{
node = _gtk_rbtree_next (tree, node);
if (node != NULL)
{
TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_next (tree_view->priv->model, &iter), FALSE);
gtk_tree_path_next (path);
}
else
{
gtk_tree_path_free (path);
path = NULL;
}
}
if (path == NULL)
{
tree = tree_view->priv->tree;
node = tree_view->priv->tree->root;
g_assert (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_DESCENDANTS_INVALID));
do
{
if (node->left != tree->nil &&
GTK_RBNODE_FLAG_SET (node->left, GTK_RBNODE_DESCENDANTS_INVALID))
{
node = node->left;
}
else if (node->right != tree->nil &&
GTK_RBNODE_FLAG_SET (node->right, GTK_RBNODE_DESCENDANTS_INVALID))
{
node = node->right;
}
else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID) ||
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_COLUMN_INVALID))
{
break;
}
else if (node->children != NULL)
{
tree = node->children;
node = tree->root;
}
else
/* RBTree corruption! All bad */
g_assert_not_reached ();
}
while (TRUE);
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
}
validated_area = validate_row (tree_view, tree, node, &iter, path) ||
validated_area;
if (!tree_view->priv->fixed_height_check)
{
gint height;
height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
if (prev_height < 0)
prev_height = height;
else if (prev_height != height)
fixed_height = FALSE;
}
i++;
}
while (g_timer_elapsed (timer, NULL) < GTK_TREE_VIEW_TIME_MS_PER_IDLE / 1000.);
if (!tree_view->priv->fixed_height_check)
{
if (fixed_height)
_gtk_rbtree_set_fixed_height (tree_view->priv->tree, prev_height, FALSE);
tree_view->priv->fixed_height_check = 1;
}
done:
if (validated_area)
{
GtkRequisition requisition;
/* We temporarily guess a size, under the assumption that it will be the
* same when we get our next size_allocate. If we don't do this, we'll be
* in an inconsistent state when we call top_row_to_dy. */
gtk_widget_get_preferred_size (GTK_WIDGET (tree_view),
&requisition, NULL);
tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
gtk_adjustment_changed (tree_view->priv->hadjustment);
gtk_adjustment_changed (tree_view->priv->vadjustment);
if (queue_resize)
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
if (path) gtk_tree_path_free (path);
g_timer_destroy (timer);
return retval;
}
static gboolean
validate_rows (GtkTreeView *tree_view)
{
gboolean retval;
retval = do_validate_rows (tree_view, TRUE);
if (! retval && tree_view->priv->validate_rows_timer)
{
g_source_remove (tree_view->priv->validate_rows_timer);
tree_view->priv->validate_rows_timer = 0;
}
return retval;
}
static gboolean
validate_rows_handler (GtkTreeView *tree_view)
{
gboolean retval;
retval = do_validate_rows (tree_view, TRUE);
if (! retval && tree_view->priv->validate_rows_timer)
{
g_source_remove (tree_view->priv->validate_rows_timer);
tree_view->priv->validate_rows_timer = 0;
}
return retval;
}
static gboolean
do_presize_handler (GtkTreeView *tree_view)
{
if (tree_view->priv->mark_rows_col_dirty)
{
if (tree_view->priv->tree)
_gtk_rbtree_column_invalid (tree_view->priv->tree);
tree_view->priv->mark_rows_col_dirty = FALSE;
}
validate_visible_area (tree_view);
tree_view->priv->presize_handler_timer = 0;
if (tree_view->priv->fixed_height_mode)
{
GtkRequisition requisition;
gtk_widget_get_preferred_size (GTK_WIDGET (tree_view),
&requisition, NULL);
tree_view->priv->hadjustment->upper = MAX (tree_view->priv->hadjustment->upper, (gfloat)requisition.width);
tree_view->priv->vadjustment->upper = MAX (tree_view->priv->vadjustment->upper, (gfloat)requisition.height);
gtk_adjustment_changed (tree_view->priv->hadjustment);
gtk_adjustment_changed (tree_view->priv->vadjustment);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
return FALSE;
}
static gboolean
presize_handler_callback (gpointer data)
{
do_presize_handler (GTK_TREE_VIEW (data));
return FALSE;
}
static void
install_presize_handler (GtkTreeView *tree_view)
{
if (! gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
if (! tree_view->priv->presize_handler_timer)
{
tree_view->priv->presize_handler_timer =
gdk_threads_add_idle_full (GTK_PRIORITY_RESIZE - 2, presize_handler_callback, tree_view, NULL);
}
if (! tree_view->priv->validate_rows_timer)
{
tree_view->priv->validate_rows_timer =
gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_VALIDATE, (GSourceFunc) validate_rows_handler, tree_view, NULL);
}
}
static void
gtk_tree_view_bin_process_updates (GtkTreeView *tree_view)
{
/* Prior to drawing, we make sure the visible area is validated. */
if (tree_view->priv->presize_handler_timer)
{
g_source_remove (tree_view->priv->presize_handler_timer);
tree_view->priv->presize_handler_timer = 0;
do_presize_handler (tree_view);
}
gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
}
static gboolean
scroll_sync_handler (GtkTreeView *tree_view)
{
if (tree_view->priv->height <= tree_view->priv->vadjustment->page_size)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment), 0);
else if (gtk_tree_row_reference_valid (tree_view->priv->top_row))
gtk_tree_view_top_row_to_dy (tree_view);
else
gtk_tree_view_dy_to_top_row (tree_view);
tree_view->priv->scroll_sync_timer = 0;
return FALSE;
}
static void
install_scroll_sync_handler (GtkTreeView *tree_view)
{
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
if (!tree_view->priv->scroll_sync_timer)
{
tree_view->priv->scroll_sync_timer =
gdk_threads_add_idle_full (GTK_TREE_VIEW_PRIORITY_SCROLL_SYNC, (GSourceFunc) scroll_sync_handler, tree_view, NULL);
}
}
static void
gtk_tree_view_set_top_row (GtkTreeView *tree_view,
GtkTreePath *path,
gint offset)
{
gtk_tree_row_reference_free (tree_view->priv->top_row);
if (!path)
{
tree_view->priv->top_row = NULL;
tree_view->priv->top_row_dy = 0;
}
else
{
tree_view->priv->top_row = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
tree_view->priv->top_row_dy = offset;
}
}
/* Always call this iff dy is in the visible range. If the tree is empty, then
* it's set to be NULL, and top_row_dy is 0;
*/
static void
gtk_tree_view_dy_to_top_row (GtkTreeView *tree_view)
{
gint offset;
GtkTreePath *path;
GtkRBTree *tree;
GtkRBNode *node;
if (tree_view->priv->tree == NULL)
{
gtk_tree_view_set_top_row (tree_view, NULL, 0);
}
else
{
offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
tree_view->priv->dy,
&tree, &node);
if (tree == NULL)
{
gtk_tree_view_set_top_row (tree_view, NULL, 0);
}
else
{
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_view_set_top_row (tree_view, path, offset);
gtk_tree_path_free (path);
}
}
}
static void
gtk_tree_view_top_row_to_dy (GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkRBTree *tree;
GtkRBNode *node;
int new_dy;
/* Avoid recursive calls */
if (tree_view->priv->in_top_row_to_dy)
return;
if (tree_view->priv->top_row)
path = gtk_tree_row_reference_get_path (tree_view->priv->top_row);
else
path = NULL;
if (!path)
tree = NULL;
else
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (path)
gtk_tree_path_free (path);
if (tree == NULL)
{
/* keep dy and set new toprow */
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
tree_view->priv->top_row_dy = 0;
/* DO NOT install the idle handler */
gtk_tree_view_dy_to_top_row (tree_view);
return;
}
if (ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node))
< tree_view->priv->top_row_dy)
{
/* new top row -- do NOT install the idle handler */
gtk_tree_view_dy_to_top_row (tree_view);
return;
}
new_dy = _gtk_rbtree_node_find_offset (tree, node);
new_dy += tree_view->priv->top_row_dy;
if (new_dy + tree_view->priv->vadjustment->page_size > tree_view->priv->height)
new_dy = tree_view->priv->height - tree_view->priv->vadjustment->page_size;
new_dy = MAX (0, new_dy);
tree_view->priv->in_top_row_to_dy = TRUE;
gtk_adjustment_set_value (tree_view->priv->vadjustment, (gdouble)new_dy);
tree_view->priv->in_top_row_to_dy = FALSE;
}
void
_gtk_tree_view_install_mark_rows_col_dirty (GtkTreeView *tree_view)
{
tree_view->priv->mark_rows_col_dirty = TRUE;
install_presize_handler (tree_view);
}
/*
* This function works synchronously (due to the while (validate_rows...)
* loop).
*
* There was a check for column_type != GTK_TREE_VIEW_COLUMN_AUTOSIZE
* here. You now need to check that yourself.
*/
void
_gtk_tree_view_column_autosize (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_TREE_VIEW_COLUMN (column));
_gtk_tree_view_column_cell_set_dirty (column, FALSE);
do_presize_handler (tree_view);
while (validate_rows (tree_view));
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/* Drag-and-drop */
static void
set_source_row (GdkDragContext *context,
GtkTreeModel *model,
GtkTreePath *source_row)
{
g_object_set_data_full (G_OBJECT (context),
I_("gtk-tree-view-source-row"),
source_row ? gtk_tree_row_reference_new (model, source_row) : NULL,
(GDestroyNotify) (source_row ? gtk_tree_row_reference_free : NULL));
}
static GtkTreePath*
get_source_row (GdkDragContext *context)
{
GtkTreeRowReference *ref =
g_object_get_data (G_OBJECT (context), "gtk-tree-view-source-row");
if (ref)
return gtk_tree_row_reference_get_path (ref);
else
return NULL;
}
typedef struct
{
GtkTreeRowReference *dest_row;
guint path_down_mode : 1;
guint empty_view_drop : 1;
guint drop_append_mode : 1;
}
DestRow;
static void
dest_row_free (gpointer data)
{
DestRow *dr = (DestRow *)data;
gtk_tree_row_reference_free (dr->dest_row);
g_slice_free (DestRow, dr);
}
static void
set_dest_row (GdkDragContext *context,
GtkTreeModel *model,
GtkTreePath *dest_row,
gboolean path_down_mode,
gboolean empty_view_drop,
gboolean drop_append_mode)
{
DestRow *dr;
if (!dest_row)
{
g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
NULL, NULL);
return;
}
dr = g_slice_new (DestRow);
dr->dest_row = gtk_tree_row_reference_new (model, dest_row);
dr->path_down_mode = path_down_mode != FALSE;
dr->empty_view_drop = empty_view_drop != FALSE;
dr->drop_append_mode = drop_append_mode != FALSE;
g_object_set_data_full (G_OBJECT (context), I_("gtk-tree-view-dest-row"),
dr, (GDestroyNotify) dest_row_free);
}
static GtkTreePath*
get_dest_row (GdkDragContext *context,
gboolean *path_down_mode)
{
DestRow *dr =
g_object_get_data (G_OBJECT (context), "gtk-tree-view-dest-row");
if (dr)
{
GtkTreePath *path = NULL;
if (path_down_mode)
*path_down_mode = dr->path_down_mode;
if (dr->dest_row)
path = gtk_tree_row_reference_get_path (dr->dest_row);
else if (dr->empty_view_drop)
path = gtk_tree_path_new_from_indices (0, -1);
else
path = NULL;
if (path && dr->drop_append_mode)
gtk_tree_path_next (path);
return path;
}
else
return NULL;
}
/* Get/set whether drag_motion requested the drag data and
* drag_data_received should thus not actually insert the data,
* since the data doesn't result from a drop.
*/
static void
set_status_pending (GdkDragContext *context,
GdkDragAction suggested_action)
{
g_object_set_data (G_OBJECT (context),
I_("gtk-tree-view-status-pending"),
GINT_TO_POINTER (suggested_action));
}
static GdkDragAction
get_status_pending (GdkDragContext *context)
{
return GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
"gtk-tree-view-status-pending"));
}
static TreeViewDragInfo*
get_info (GtkTreeView *tree_view)
{
return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
}
static void
destroy_info (TreeViewDragInfo *di)
{
g_slice_free (TreeViewDragInfo, di);
}
static TreeViewDragInfo*
ensure_info (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
di = get_info (tree_view);
if (di == NULL)
{
di = g_slice_new0 (TreeViewDragInfo);
g_object_set_data_full (G_OBJECT (tree_view),
I_("gtk-tree-view-drag-info"),
di,
(GDestroyNotify) destroy_info);
}
return di;
}
static void
remove_info (GtkTreeView *tree_view)
{
g_object_set_data (G_OBJECT (tree_view), I_("gtk-tree-view-drag-info"), NULL);
}
#if 0
static gint
drag_scan_timeout (gpointer data)
{
GtkTreeView *tree_view;
gint x, y;
GdkModifierType state;
GtkTreePath *path = NULL;
GtkTreeViewColumn *column = NULL;
GdkRectangle visible_rect;
GDK_THREADS_ENTER ();
tree_view = GTK_TREE_VIEW (data);
gdk_window_get_pointer (tree_view->priv->bin_window,
&x, &y, &state);
gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
/* See if we are near the edge. */
if ((x - visible_rect.x) < SCROLL_EDGE_SIZE ||
(visible_rect.x + visible_rect.width - x) < SCROLL_EDGE_SIZE ||
(y - visible_rect.y) < SCROLL_EDGE_SIZE ||
(visible_rect.y + visible_rect.height - y) < SCROLL_EDGE_SIZE)
{
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->bin_window,
x, y,
&path,
&column,
NULL,
NULL);
if (path != NULL)
{
gtk_tree_view_scroll_to_cell (tree_view,
path,
column,
TRUE,
0.5, 0.5);
gtk_tree_path_free (path);
}
}
GDK_THREADS_LEAVE ();
return TRUE;
}
#endif /* 0 */
static void
add_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout == 0)
{
tree_view->priv->scroll_timeout =
gdk_threads_add_timeout (150, scroll_row_timeout, tree_view);
}
}
static void
remove_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout != 0)
{
g_source_remove (tree_view->priv->scroll_timeout);
tree_view->priv->scroll_timeout = 0;
}
}
static gboolean
check_model_dnd (GtkTreeModel *model,
GType required_iface,
const gchar *signal)
{
if (model == NULL || !G_TYPE_CHECK_INSTANCE_TYPE ((model), required_iface))
{
g_warning ("You must override the default '%s' handler "
"on GtkTreeView when using models that don't support "
"the %s interface and enabling drag-and-drop. The simplest way to do this "
"is to connect to '%s' and call "
"g_signal_stop_emission_by_name() in your signal handler to prevent "
"the default handler from running. Look at the source code "
"for the default handler in gtktreeview.c to get an idea what "
"your handler should do. (gtktreeview.c is in the GTK source "
"code.) If you're using GTK from a language other than C, "
"there may be a more natural way to override default handlers, e.g. via derivation.",
signal, g_type_name (required_iface), signal);
return FALSE;
}
else
return TRUE;
}
static void
remove_open_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->open_dest_timeout != 0)
{
g_source_remove (tree_view->priv->open_dest_timeout);
tree_view->priv->open_dest_timeout = 0;
}
}
static gint
open_row_timeout (gpointer data)
{
GtkTreeView *tree_view = data;
GtkTreePath *dest_path = NULL;
GtkTreeViewDropPosition pos;
gboolean result = FALSE;
gtk_tree_view_get_drag_dest_row (tree_view,
&dest_path,
&pos);
if (dest_path &&
(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
tree_view->priv->open_dest_timeout = 0;
gtk_tree_path_free (dest_path);
}
else
{
if (dest_path)
gtk_tree_path_free (dest_path);
result = TRUE;
}
return result;
}
static gboolean
scroll_row_timeout (gpointer data)
{
GtkTreeView *tree_view = data;
gtk_tree_view_vertical_autoscroll (tree_view);
if (tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
gtk_tree_view_update_rubber_band (tree_view);
return TRUE;
}
/* Returns TRUE if event should not be propagated to parent widgets */
static gboolean
set_destination_row (GtkTreeView *tree_view,
GdkDragContext *context,
/* coordinates relative to the widget */
gint x,
gint y,
GdkDragAction *suggested_action,
GdkAtom *target)
{
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
GtkTreeViewDropPosition old_pos;
TreeViewDragInfo *di;
GtkWidget *widget;
GtkTreePath *old_dest_path = NULL;
gboolean can_drop = FALSE;
*suggested_action = 0;
*target = GDK_NONE;
widget = GTK_WIDGET (tree_view);
di = get_info (tree_view);
if (di == NULL || y - TREE_VIEW_HEADER_HEIGHT (tree_view) < 0)
{
/* someone unset us as a drag dest, note that if
* we return FALSE drag_leave isn't called
*/
gtk_tree_view_set_drag_dest_row (tree_view,
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
return FALSE; /* no longer a drop site */
}
*target = gtk_drag_dest_find_target (widget, context,
gtk_drag_dest_get_target_list (widget));
if (*target == GDK_NONE)
{
return FALSE;
}
if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
x, y,
&path,
&pos))
{
gint n_children;
GtkTreeModel *model;
remove_open_timeout (tree_view);
/* the row got dropped on empty space, let's setup a special case
*/
if (path)
gtk_tree_path_free (path);
model = gtk_tree_view_get_model (tree_view);
n_children = gtk_tree_model_iter_n_children (model, NULL);
if (n_children)
{
pos = GTK_TREE_VIEW_DROP_AFTER;
path = gtk_tree_path_new_from_indices (n_children - 1, -1);
}
else
{
pos = GTK_TREE_VIEW_DROP_BEFORE;
path = gtk_tree_path_new_from_indices (0, -1);
}
can_drop = TRUE;
goto out;
}
g_assert (path);
/* If we left the current row's "open" zone, unset the timeout for
* opening the row
*/
gtk_tree_view_get_drag_dest_row (tree_view,
&old_dest_path,
&old_pos);
if (old_dest_path &&
(gtk_tree_path_compare (path, old_dest_path) != 0 ||
!(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
remove_open_timeout (tree_view);
if (old_dest_path)
gtk_tree_path_free (old_dest_path);
if (TRUE /* FIXME if the location droppable predicate */)
{
can_drop = TRUE;
}
out:
if (can_drop)
{
GtkWidget *source_widget;
*suggested_action = context->suggested_action;
source_widget = gtk_drag_get_source_widget (context);
if (source_widget == widget)
{
/* Default to MOVE, unless the user has
* pressed ctrl or shift to affect available actions
*/
if ((context->actions & GDK_ACTION_MOVE) != 0)
*suggested_action = GDK_ACTION_MOVE;
}
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
path, pos);
}
else
{
/* can't drop here */
remove_open_timeout (tree_view);
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static GtkTreePath*
get_logical_dest_row (GtkTreeView *tree_view,
gboolean *path_down_mode,
gboolean *drop_append_mode)
{
/* adjust path to point to the row the drop goes in front of */
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
g_return_val_if_fail (path_down_mode != NULL, NULL);
g_return_val_if_fail (drop_append_mode != NULL, NULL);
*path_down_mode = FALSE;
*drop_append_mode = 0;
gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
if (path == NULL)
return NULL;
if (pos == GTK_TREE_VIEW_DROP_BEFORE)
; /* do nothing */
else if (pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER)
*path_down_mode = TRUE;
else
{
GtkTreeIter iter;
GtkTreeModel *model = gtk_tree_view_get_model (tree_view);
g_assert (pos == GTK_TREE_VIEW_DROP_AFTER);
if (!gtk_tree_model_get_iter (model, &iter, path) ||
!gtk_tree_model_iter_next (model, &iter))
*drop_append_mode = 1;
else
{
*drop_append_mode = 0;
gtk_tree_path_next (path);
}
}
return path;
}
static gboolean
gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view,
GdkEventMotion *event)
{
GtkWidget *widget = GTK_WIDGET (tree_view);
GdkDragContext *context;
TreeViewDragInfo *di;
GtkTreePath *path = NULL;
gint button;
gint cell_x, cell_y;
GtkTreeModel *model;
gboolean retval = FALSE;
di = get_info (tree_view);
if (di == NULL || !di->source_set)
goto out;
if (tree_view->priv->pressed_button < 0)
goto out;
if (!gtk_drag_check_threshold (widget,
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
event->x, event->y))
goto out;
model = gtk_tree_view_get_model (tree_view);
if (model == NULL)
goto out;
button = tree_view->priv->pressed_button;
tree_view->priv->pressed_button = -1;
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
&path,
NULL,
&cell_x,
&cell_y);
if (path == NULL)
goto out;
if (!GTK_IS_TREE_DRAG_SOURCE (model) ||
!gtk_tree_drag_source_row_draggable (GTK_TREE_DRAG_SOURCE (model),
path))
goto out;
if (!(GDK_BUTTON1_MASK << (button - 1) & di->start_button_mask))
goto out;
/* Now we can begin the drag */
retval = TRUE;
context = gtk_drag_begin (widget,
gtk_drag_source_get_target_list (widget),
di->source_actions,
button,
(GdkEvent*)event);
set_source_row (context, model, path);
out:
if (path)
gtk_tree_path_free (path);
return retval;
}
static void
gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
GtkTreeView *tree_view;
GtkTreePath *path = NULL;
gint cell_x, cell_y;
cairo_surface_t *row_pix;
TreeViewDragInfo *di;
tree_view = GTK_TREE_VIEW (widget);
/* if the user uses a custom DND source impl, we don't set the icon here */
di = get_info (tree_view);
if (di == NULL || !di->source_set)
return;
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
&path,
NULL,
&cell_x,
&cell_y);
g_return_if_fail (path != NULL);
row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
path);
cairo_surface_set_device_offset (row_pix,
/* the + 1 is for the black border in the icon */
- (tree_view->priv->press_start_x + 1),
- (cell_y + 1));
gtk_drag_set_icon_surface (context, row_pix);
cairo_surface_destroy (row_pix);
gtk_tree_path_free (path);
}
static void
gtk_tree_view_drag_end (GtkWidget *widget,
GdkDragContext *context)
{
/* do nothing */
}
/* Default signal implementations for the drag signals */
static void
gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkTreeView *tree_view;
GtkTreeModel *model;
TreeViewDragInfo *di;
GtkTreePath *source_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (model == NULL)
return;
di = get_info (GTK_TREE_VIEW (widget));
if (di == NULL)
return;
source_row = get_source_row (context);
if (source_row == NULL)
return;
/* We can implement the GTK_TREE_MODEL_ROW target generically for
* any model; for DragSource models there are some other targets
* we also support.
*/
if (GTK_IS_TREE_DRAG_SOURCE (model) &&
gtk_tree_drag_source_drag_data_get (GTK_TREE_DRAG_SOURCE (model),
source_row,
selection_data))
goto done;
/* If drag_data_get does nothing, try providing row data. */
if (selection_data->target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
{
gtk_tree_set_row_drag_data (selection_data,
model,
source_row);
}
done:
gtk_tree_path_free (source_row);
}
static void
gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context)
{
TreeViewDragInfo *di;
GtkTreeModel *model;
GtkTreeView *tree_view;
GtkTreePath *source_row;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_SOURCE, "drag_data_delete"))
return;
di = get_info (tree_view);
if (di == NULL)
return;
source_row = get_source_row (context);
if (source_row == NULL)
return;
gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
source_row);
gtk_tree_path_free (source_row);
set_source_row (context, NULL, NULL);
}
static void
gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
/* unset any highlight row */
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
}
static gboolean
gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
/* coordinates relative to the widget */
gint x,
gint y,
guint time)
{
gboolean empty;
GtkTreePath *path = NULL;
GtkTreeViewDropPosition pos;
GtkTreeView *tree_view;
GdkDragAction suggested_action = 0;
GdkAtom target;
tree_view = GTK_TREE_VIEW (widget);
if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
return FALSE;
gtk_tree_view_get_drag_dest_row (tree_view, &path, &pos);
/* we only know this *after* set_desination_row */
empty = tree_view->priv->empty_view_drop;
if (path == NULL && !empty)
{
/* Can't drop here. */
gdk_drag_status (context, 0, time);
}
else
{
if (tree_view->priv->open_dest_timeout == 0 &&
(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
tree_view->priv->open_dest_timeout =
gdk_threads_add_timeout (AUTO_EXPAND_TIMEOUT, open_row_timeout, tree_view);
}
else
{
add_scroll_timeout (tree_view);
}
if (target == gdk_atom_intern_static_string ("GTK_TREE_MODEL_ROW"))
{
/* Request data so we can use the source row when
* determining whether to accept the drop
*/
set_status_pending (context, suggested_action);
gtk_drag_get_data (widget, context, target, time);
}
else
{
set_status_pending (context, 0);
gdk_drag_status (context, suggested_action, time);
}
}
if (path)
gtk_tree_path_free (path);
return TRUE;
}
static gboolean
gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
/* coordinates relative to the widget */
gint x,
gint y,
guint time)
{
GtkTreeView *tree_view;
GtkTreePath *path;
GdkDragAction suggested_action = 0;
GdkAtom target = GDK_NONE;
TreeViewDragInfo *di;
GtkTreeModel *model;
gboolean path_down_mode;
gboolean drop_append_mode;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
di = get_info (tree_view);
if (di == NULL)
return FALSE;
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_drop"))
return FALSE;
if (!set_destination_row (tree_view, context, x, y, &suggested_action, &target))
return FALSE;
path = get_logical_dest_row (tree_view, &path_down_mode, &drop_append_mode);
if (target != GDK_NONE && path != NULL)
{
/* in case a motion had requested drag data, change things so we
* treat drag data receives as a drop.
*/
set_status_pending (context, 0);
set_dest_row (context, model, path,
path_down_mode, tree_view->priv->empty_view_drop,
drop_append_mode);
}
if (path)
gtk_tree_path_free (path);
/* Unset this thing */
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
if (target != GDK_NONE)
{
gtk_drag_get_data (widget, context, target, time);
return TRUE;
}
else
return FALSE;
}
static void
gtk_tree_view_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
/* coordinates relative to the widget */
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkTreePath *path;
TreeViewDragInfo *di;
gboolean accepted = FALSE;
GtkTreeModel *model;
GtkTreeView *tree_view;
GtkTreePath *dest_row;
GdkDragAction suggested_action;
gboolean path_down_mode;
gboolean drop_append_mode;
tree_view = GTK_TREE_VIEW (widget);
model = gtk_tree_view_get_model (tree_view);
if (!check_model_dnd (model, GTK_TYPE_TREE_DRAG_DEST, "drag_data_received"))
return;
di = get_info (tree_view);
if (di == NULL)
return;
suggested_action = get_status_pending (context);
if (suggested_action)
{
/* We are getting this data due to a request in drag_motion,
* rather than due to a request in drag_drop, so we are just
* supposed to call drag_status, not actually paste in the
* data.
*/
path = get_logical_dest_row (tree_view, &path_down_mode,
&drop_append_mode);
if (path == NULL)
suggested_action = 0;
else if (path_down_mode)
gtk_tree_path_down (path);
if (suggested_action)
{
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
path,
selection_data))
{
if (path_down_mode)
{
path_down_mode = FALSE;
gtk_tree_path_up (path);
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
path,
selection_data))
suggested_action = 0;
}
else
suggested_action = 0;
}
}
gdk_drag_status (context, suggested_action, time);
if (path)
gtk_tree_path_free (path);
/* If you can't drop, remove user drop indicator until the next motion */
if (suggested_action == 0)
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
return;
}
dest_row = get_dest_row (context, &path_down_mode);
if (dest_row == NULL)
return;
if (selection_data->length >= 0)
{
if (path_down_mode)
{
gtk_tree_path_down (dest_row);
if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
dest_row, selection_data))
gtk_tree_path_up (dest_row);
}
}
if (selection_data->length >= 0)
{
if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
dest_row,
selection_data))
accepted = TRUE;
}
gtk_drag_finish (context,
accepted,
(context->action == GDK_ACTION_MOVE),
time);
if (gtk_tree_path_get_depth (dest_row) == 1
&& gtk_tree_path_get_indices (dest_row)[0] == 0)
{
/* special special case drag to "0", scroll to first item */
if (!tree_view->priv->scroll_to_path)
gtk_tree_view_scroll_to_cell (tree_view, dest_row, NULL, FALSE, 0.0, 0.0);
}
gtk_tree_path_free (dest_row);
/* drop dest_row */
set_dest_row (context, NULL, NULL, FALSE, FALSE, FALSE);
}
/* GtkContainer Methods
*/
static void
gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (container);
GtkTreeViewChild *child = NULL;
GList *tmp_list;
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
if (child->widget == widget)
{
gtk_widget_unparent (widget);
tree_view->priv->children = g_list_remove_link (tree_view->priv->children, tmp_list);
g_list_free_1 (tmp_list);
g_slice_free (GtkTreeViewChild, child);
return;
}
tmp_list = tmp_list->next;
}
tmp_list = tree_view->priv->columns;
while (tmp_list)
{
GtkTreeViewColumn *column;
column = tmp_list->data;
if (column->button == widget)
{
gtk_widget_unparent (widget);
return;
}
tmp_list = tmp_list->next;
}
}
static void
gtk_tree_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (container);
GtkTreeViewChild *child = NULL;
GtkTreeViewColumn *column;
GList *tmp_list;
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
tmp_list = tmp_list->next;
(* callback) (child->widget, callback_data);
}
if (include_internals == FALSE)
return;
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
{
column = tmp_list->data;
if (column->button)
(* callback) (column->button, callback_data);
}
}
/* Returns TRUE if the treeview contains no "special" (editable or activatable)
* cells. If so we draw one big row-spanning focus rectangle.
*/
static gboolean
gtk_tree_view_has_special_cell (GtkTreeView *tree_view)
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
{
if (!((GtkTreeViewColumn *)list->data)->visible)
continue;
if (_gtk_tree_view_column_count_special_cells (list->data))
return TRUE;
}
return FALSE;
}
static void
column_sizing_notify (GObject *object,
GParamSpec *pspec,
gpointer data)
{
GtkTreeViewColumn *c = GTK_TREE_VIEW_COLUMN (object);
if (gtk_tree_view_column_get_sizing (c) != GTK_TREE_VIEW_COLUMN_FIXED)
/* disable fixed height mode */
g_object_set (data, "fixed-height-mode", FALSE, NULL);
}
/**
* gtk_tree_view_set_fixed_height_mode:
* @tree_view: a #GtkTreeView
* @enable: %TRUE to enable fixed height mode
*
* Enables or disables the fixed height mode of @tree_view.
* Fixed height mode speeds up #GtkTreeView by assuming that all
* rows have the same height.
* Only enable this option if all rows are the same height and all
* columns are of type %GTK_TREE_VIEW_COLUMN_FIXED.
*
* Since: 2.6
**/
void
gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
gboolean enable)
{
GList *l;
enable = enable != FALSE;
if (enable == tree_view->priv->fixed_height_mode)
return;
if (!enable)
{
tree_view->priv->fixed_height_mode = 0;
tree_view->priv->fixed_height = -1;
/* force a revalidation */
install_presize_handler (tree_view);
}
else
{
/* make sure all columns are of type FIXED */
for (l = tree_view->priv->columns; l; l = l->next)
{
GtkTreeViewColumn *c = l->data;
g_return_if_fail (gtk_tree_view_column_get_sizing (c) == GTK_TREE_VIEW_COLUMN_FIXED);
}
/* yes, we really have to do this is in a separate loop */
for (l = tree_view->priv->columns; l; l = l->next)
g_signal_connect (l->data, "notify::sizing",
G_CALLBACK (column_sizing_notify), tree_view);
tree_view->priv->fixed_height_mode = 1;
tree_view->priv->fixed_height = -1;
if (tree_view->priv->tree)
initialize_fixed_height_mode (tree_view);
}
g_object_notify (G_OBJECT (tree_view), "fixed-height-mode");
}
/**
* gtk_tree_view_get_fixed_height_mode:
* @tree_view: a #GtkTreeView
*
* Returns whether fixed height mode is turned on for @tree_view.
*
* Return value: %TRUE if @tree_view is in fixed height mode
*
* Since: 2.6
**/
gboolean
gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view)
{
return tree_view->priv->fixed_height_mode;
}
/* Returns TRUE if the focus is within the headers, after the focus operation is
* done
*/
static gboolean
gtk_tree_view_header_focus (GtkTreeView *tree_view,
GtkDirectionType dir,
gboolean clamp_column_visible)
{
GtkWidget *focus_child;
GList *last_column, *first_column;
GList *tmp_list;
gboolean rtl;
if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
return FALSE;
focus_child = gtk_container_get_focus_child (GTK_CONTAINER (tree_view));
first_column = tree_view->priv->columns;
while (first_column)
{
if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (first_column->data)->button) &&
GTK_TREE_VIEW_COLUMN (first_column->data)->visible &&
(GTK_TREE_VIEW_COLUMN (first_column->data)->clickable ||
GTK_TREE_VIEW_COLUMN (first_column->data)->reorderable))
break;
first_column = first_column->next;
}
/* No headers are visible, or are focusable. We can't focus in or out.
*/
if (first_column == NULL)
return FALSE;
last_column = g_list_last (tree_view->priv->columns);
while (last_column)
{
if (gtk_widget_get_can_focus (GTK_TREE_VIEW_COLUMN (last_column->data)->button) &&
GTK_TREE_VIEW_COLUMN (last_column->data)->visible &&
(GTK_TREE_VIEW_COLUMN (last_column->data)->clickable ||
GTK_TREE_VIEW_COLUMN (last_column->data)->reorderable))
break;
last_column = last_column->prev;
}
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
switch (dir)
{
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_UP:
case GTK_DIR_DOWN:
if (focus_child == NULL)
{
if (tree_view->priv->focus_column != NULL &&
gtk_widget_get_can_focus (tree_view->priv->focus_column->button))
focus_child = tree_view->priv->focus_column->button;
else
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
break;
}
return FALSE;
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
if (focus_child == NULL)
{
if (tree_view->priv->focus_column != NULL)
focus_child = tree_view->priv->focus_column->button;
else if (dir == GTK_DIR_LEFT)
focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
else
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
break;
}
if (gtk_widget_child_focus (focus_child, dir))
{
/* The focus moves inside the button. */
/* This is probably a great example of bad UI */
break;
}
/* We need to move the focus among the row of buttons. */
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
break;
if ((tmp_list == first_column && dir == (rtl ? GTK_DIR_RIGHT : GTK_DIR_LEFT))
|| (tmp_list == last_column && dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT)))
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
break;
}
while (tmp_list)
{
GtkTreeViewColumn *column;
if (dir == (rtl ? GTK_DIR_LEFT : GTK_DIR_RIGHT))
tmp_list = tmp_list->next;
else
tmp_list = tmp_list->prev;
if (tmp_list == NULL)
{
g_warning ("Internal button not found");
break;
}
column = tmp_list->data;
if (column->button &&
column->visible &&
gtk_widget_get_can_focus (column->button))
{
focus_child = column->button;
gtk_widget_grab_focus (column->button);
break;
}
}
break;
default:
g_assert_not_reached ();
break;
}
/* if focus child is non-null, we assume it's been set to the current focus child
*/
if (focus_child)
{
for (tmp_list = tree_view->priv->columns; tmp_list; tmp_list = tmp_list->next)
if (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button == focus_child)
{
tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
break;
}
if (clamp_column_visible)
{
gtk_tree_view_clamp_column_visible (tree_view,
tree_view->priv->focus_column,
FALSE);
}
}
return (focus_child != NULL);
}
/* This function returns in 'path' the first focusable path, if the given path
* is already focusable, it's the returned one.
*/
static gboolean
search_first_focusable_path (GtkTreeView *tree_view,
GtkTreePath **path,
gboolean search_forward,
GtkRBTree **new_tree,
GtkRBNode **new_node)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
if (!path || !*path)
return FALSE;
_gtk_tree_view_find_node (tree_view, *path, &tree, &node);
if (!tree || !node)
return FALSE;
while (node && row_is_separator (tree_view, NULL, *path))
{
if (search_forward)
_gtk_rbtree_next_full (tree, node, &tree, &node);
else
_gtk_rbtree_prev_full (tree, node, &tree, &node);
if (*path)
gtk_tree_path_free (*path);
if (node)
*path = _gtk_tree_view_find_path (tree_view, tree, node);
else
*path = NULL;
}
if (new_tree)
*new_tree = tree;
if (new_node)
*new_node = node;
return (*path != NULL);
}
static gint
gtk_tree_view_focus (GtkWidget *widget,
GtkDirectionType direction)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkContainer *container = GTK_CONTAINER (widget);
GtkWidget *focus_child;
if (!gtk_widget_is_sensitive (widget) || !gtk_widget_get_can_focus (widget))
return FALSE;
focus_child = gtk_container_get_focus_child (container);
gtk_tree_view_stop_editing (GTK_TREE_VIEW (widget), FALSE);
/* Case 1. Headers currently have focus. */
if (focus_child)
{
switch (direction)
{
case GTK_DIR_LEFT:
case GTK_DIR_RIGHT:
gtk_tree_view_header_focus (tree_view, direction, TRUE);
return TRUE;
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
return FALSE;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_DOWN:
gtk_widget_grab_focus (widget);
return TRUE;
default:
g_assert_not_reached ();
return FALSE;
}
}
/* Case 2. We don't have focus at all. */
if (!gtk_widget_has_focus (widget))
{
gtk_widget_grab_focus (widget);
return TRUE;
}
/* Case 3. We have focus already. */
if (direction == GTK_DIR_TAB_BACKWARD)
return (gtk_tree_view_header_focus (tree_view, direction, FALSE));
else if (direction == GTK_DIR_TAB_FORWARD)
return FALSE;
/* Other directions caught by the keybindings */
gtk_widget_grab_focus (widget);
return TRUE;
}
static void
gtk_tree_view_grab_focus (GtkWidget *widget)
{
GTK_WIDGET_CLASS (gtk_tree_view_parent_class)->grab_focus (widget);
gtk_tree_view_focus_to_cursor (GTK_TREE_VIEW (widget));
}
static void
gtk_tree_view_style_set (GtkWidget *widget,
GtkStyle *previous_style)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
GtkStyle *style;
GList *list;
GtkTreeViewColumn *column;
if (gtk_widget_get_realized (widget))
{
style = gtk_widget_get_style (widget);
gdk_window_set_background (tree_view->priv->bin_window,
&style->base[gtk_widget_get_state (widget)]);
gtk_style_set_background (style, tree_view->priv->header_window, GTK_STATE_NORMAL);
gtk_tree_view_set_grid_lines (tree_view, tree_view->priv->grid_lines);
gtk_tree_view_set_enable_tree_lines (tree_view, tree_view->priv->tree_lines_enabled);
}
gtk_widget_style_get (widget,
"expander-size", &tree_view->priv->expander_size,
NULL);
tree_view->priv->expander_size += EXPANDER_EXTRA_PADDING;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
tree_view->priv->fixed_height = -1;
_gtk_rbtree_mark_invalid (tree_view->priv->tree);
gtk_widget_queue_resize (widget);
}
static void
gtk_tree_view_set_focus_child (GtkContainer *container,
GtkWidget *child)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (container);
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
{
if (GTK_TREE_VIEW_COLUMN (list->data)->button == child)
{
tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
break;
}
}
GTK_CONTAINER_CLASS (gtk_tree_view_parent_class)->set_focus_child (container, child);
}
static gboolean
gtk_tree_view_real_move_cursor (GtkTreeView *tree_view,
GtkMovementStep step,
gint count)
{
GdkModifierType state;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (step == GTK_MOVEMENT_LOGICAL_POSITIONS ||
step == GTK_MOVEMENT_VISUAL_POSITIONS ||
step == GTK_MOVEMENT_DISPLAY_LINES ||
step == GTK_MOVEMENT_PAGES ||
step == GTK_MOVEMENT_BUFFER_ENDS, FALSE);
if (tree_view->priv->tree == NULL)
return FALSE;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
gtk_tree_view_stop_editing (tree_view, FALSE);
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
if (gtk_get_current_event_state (&state))
{
if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
tree_view->priv->ctrl_pressed = TRUE;
if ((state & GDK_SHIFT_MASK) == GDK_SHIFT_MASK)
tree_view->priv->shift_pressed = TRUE;
}
/* else we assume not pressed */
switch (step)
{
/* currently we make no distinction. When we go bi-di, we need to */
case GTK_MOVEMENT_LOGICAL_POSITIONS:
case GTK_MOVEMENT_VISUAL_POSITIONS:
gtk_tree_view_move_cursor_left_right (tree_view, count);
break;
case GTK_MOVEMENT_DISPLAY_LINES:
gtk_tree_view_move_cursor_up_down (tree_view, count);
break;
case GTK_MOVEMENT_PAGES:
gtk_tree_view_move_cursor_page_up_down (tree_view, count);
break;
case GTK_MOVEMENT_BUFFER_ENDS:
gtk_tree_view_move_cursor_start_end (tree_view, count);
break;
default:
g_assert_not_reached ();
}
tree_view->priv->ctrl_pressed = FALSE;
tree_view->priv->shift_pressed = FALSE;
return TRUE;
}
static void
gtk_tree_view_put (GtkTreeView *tree_view,
GtkWidget *child_widget,
/* in bin_window coordinates */
gint x,
gint y,
gint width,
gint height)
{
GtkTreeViewChild *child;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_WIDGET (child_widget));
child = g_slice_new (GtkTreeViewChild);
child->widget = child_widget;
child->x = x;
child->y = y;
child->width = width;
child->height = height;
tree_view->priv->children = g_list_append (tree_view->priv->children, child);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
gtk_widget_set_parent_window (child->widget, tree_view->priv->bin_window);
gtk_widget_set_parent (child_widget, GTK_WIDGET (tree_view));
}
void
_gtk_tree_view_child_move_resize (GtkTreeView *tree_view,
GtkWidget *widget,
/* in tree coordinates */
gint x,
gint y,
gint width,
gint height)
{
GtkTreeViewChild *child = NULL;
GList *list;
GdkRectangle allocation;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_WIDGET (widget));
for (list = tree_view->priv->children; list; list = list->next)
{
if (((GtkTreeViewChild *)list->data)->widget == widget)
{
child = list->data;
break;
}
}
if (child == NULL)
return;
allocation.x = child->x = x;
allocation.y = child->y = y;
allocation.width = child->width = width;
allocation.height = child->height = height;
if (gtk_widget_get_realized (widget))
gtk_widget_size_allocate (widget, &allocation);
}
/* TreeModel Callbacks
*/
static void
gtk_tree_view_row_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkRBTree *tree;
GtkRBNode *node;
gboolean free_path = FALSE;
GList *list;
GtkTreePath *cursor_path;
g_return_if_fail (path != NULL || iter != NULL);
if (tree_view->priv->cursor != NULL)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
else
cursor_path = NULL;
if (tree_view->priv->edited_column &&
(cursor_path == NULL || gtk_tree_path_compare (cursor_path, path) == 0))
gtk_tree_view_stop_editing (tree_view, TRUE);
if (cursor_path != NULL)
gtk_tree_path_free (cursor_path);
if (path == NULL)
{
path = gtk_tree_model_get_path (model, iter);
free_path = TRUE;
}
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
/* We aren't actually showing the node */
goto done;
if (tree == NULL)
goto done;
if (tree_view->priv->fixed_height_mode
&& tree_view->priv->fixed_height >= 0)
{
_gtk_rbtree_node_set_height (tree, node, tree_view->priv->fixed_height);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
gtk_tree_view_node_queue_redraw (tree_view, tree, node);
}
else
{
_gtk_rbtree_node_mark_invalid (tree, node);
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column;
column = list->data;
if (! column->visible)
continue;
if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
{
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
}
}
done:
if (!tree_view->priv->fixed_height_mode &&
gtk_widget_get_realized (GTK_WIDGET (tree_view)))
install_presize_handler (tree_view);
if (free_path)
gtk_tree_path_free (path);
}
static void
gtk_tree_view_row_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *) data;
gint *indices;
GtkRBTree *tmptree, *tree;
GtkRBNode *tmpnode = NULL;
gint depth;
gint i = 0;
gint height;
gboolean free_path = FALSE;
gboolean node_visible = TRUE;
g_return_if_fail (path != NULL || iter != NULL);
if (tree_view->priv->fixed_height_mode
&& tree_view->priv->fixed_height >= 0)
height = tree_view->priv->fixed_height;
else
height = 0;
if (path == NULL)
{
path = gtk_tree_model_get_path (model, iter);
free_path = TRUE;
}
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, path);
if (tree_view->priv->tree == NULL)
tree_view->priv->tree = _gtk_rbtree_new ();
tmptree = tree = tree_view->priv->tree;
/* Update all row-references */
gtk_tree_row_reference_inserted (G_OBJECT (data), path);
depth = gtk_tree_path_get_depth (path);
indices = gtk_tree_path_get_indices (path);
/* First, find the parent tree */
while (i < depth - 1)
{
if (tmptree == NULL)
{
/* We aren't showing the node */
node_visible = FALSE;
goto done;
}
tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
if (tmpnode == NULL)
{
g_warning ("A node was inserted with a parent that's not in the tree.\n" \
"This possibly means that a GtkTreeModel inserted a child node\n" \
"before the parent was inserted.");
goto done;
}
else if (!GTK_RBNODE_FLAG_SET (tmpnode, GTK_RBNODE_IS_PARENT))
{
/* FIXME enforce correct behavior on model, probably */
/* In theory, the model should have emitted has_child_toggled here. We
* try to catch it anyway, just to be safe, in case the model hasn't.
*/
GtkTreePath *tmppath = _gtk_tree_view_find_path (tree_view,
tree,
tmpnode);
gtk_tree_view_row_has_child_toggled (model, tmppath, NULL, data);
gtk_tree_path_free (tmppath);
goto done;
}
tmptree = tmpnode->children;
tree = tmptree;
i++;
}
if (tree == NULL)
{
node_visible = FALSE;
goto done;
}
/* ref the node */
gtk_tree_model_ref_node (tree_view->priv->model, iter);
if (indices[depth - 1] == 0)
{
tmpnode = _gtk_rbtree_find_count (tree, 1);
tmpnode = _gtk_rbtree_insert_before (tree, tmpnode, height, FALSE);
}
else
{
tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
tmpnode = _gtk_rbtree_insert_after (tree, tmpnode, height, FALSE);
}
done:
if (height > 0)
{
if (tree)
_gtk_rbtree_node_mark_valid (tree, tmpnode);
if (node_visible && node_is_visible (tree_view, tree, tmpnode))
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
else
gtk_widget_queue_resize_no_redraw (GTK_WIDGET (tree_view));
}
else
install_presize_handler (tree_view);
if (free_path)
gtk_tree_path_free (path);
}
static void
gtk_tree_view_row_has_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkTreeIter real_iter;
gboolean has_child;
GtkRBTree *tree;
GtkRBNode *node;
gboolean free_path = FALSE;
g_return_if_fail (path != NULL || iter != NULL);
if (iter)
real_iter = *iter;
if (path == NULL)
{
path = gtk_tree_model_get_path (model, iter);
free_path = TRUE;
}
else if (iter == NULL)
gtk_tree_model_get_iter (model, &real_iter, path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
/* We aren't actually showing the node */
goto done;
if (tree == NULL)
goto done;
has_child = gtk_tree_model_iter_has_child (model, &real_iter);
/* Sanity check.
*/
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT) == has_child)
goto done;
if (has_child)
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PARENT);
else
GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_PARENT);
if (has_child && GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
{
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS))
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
{
GTK_TREE_VIEW_COLUMN (list->data)->dirty = TRUE;
_gtk_tree_view_column_cell_set_dirty (GTK_TREE_VIEW_COLUMN (list->data), TRUE);
break;
}
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
else
{
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
}
done:
if (free_path)
gtk_tree_path_free (path);
}
static void
count_children_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
if (node->children)
_gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, data);
(*((gint *)data))++;
}
static void
check_selection_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
gint *value = (gint *)data;
*value = GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED);
if (node->children && !*value)
_gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, check_selection_helper, data);
}
static void
gtk_tree_view_row_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkRBTree *tree;
GtkRBNode *node;
GList *list;
gint selection_changed = FALSE;
g_return_if_fail (path != NULL);
gtk_tree_row_reference_deleted (G_OBJECT (data), path);
if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
return;
if (tree == NULL)
return;
/* check if the selection has been changed */
_gtk_rbtree_traverse (tree, node, G_POST_ORDER,
check_selection_helper, &selection_changed);
for (list = tree_view->priv->columns; list; list = list->next)
if (((GtkTreeViewColumn *)list->data)->visible &&
((GtkTreeViewColumn *)list->data)->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
_gtk_tree_view_column_cell_set_dirty ((GtkTreeViewColumn *)list->data, TRUE);
/* Ensure we don't have a dangling pointer to a dead node */
ensure_unprelighted (tree_view);
/* Cancel editting if we've started */
gtk_tree_view_stop_editing (tree_view, TRUE);
/* If we have a node expanded/collapsed timeout, remove it */
remove_expand_collapse_timeout (tree_view);
if (tree_view->priv->destroy_count_func)
{
gint child_count = 0;
if (node->children)
_gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
tree_view->priv->destroy_count_func (tree_view, path, child_count, tree_view->priv->destroy_count_data);
}
if (tree->root->count == 1)
{
if (tree_view->priv->tree == tree)
tree_view->priv->tree = NULL;
_gtk_rbtree_remove (tree);
}
else
{
_gtk_rbtree_remove_node (tree, node);
}
if (! gtk_tree_row_reference_valid (tree_view->priv->top_row))
{
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
}
install_scroll_sync_handler (tree_view);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
if (selection_changed)
g_signal_emit_by_name (tree_view->priv->selection, "changed");
}
static void
gtk_tree_view_rows_reordered (GtkTreeModel *model,
GtkTreePath *parent,
GtkTreeIter *iter,
gint *new_order,
gpointer data)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (data);
GtkRBTree *tree;
GtkRBNode *node;
gint len;
len = gtk_tree_model_iter_n_children (model, iter);
if (len < 2)
return;
gtk_tree_row_reference_reordered (G_OBJECT (data),
parent,
iter,
new_order);
if (_gtk_tree_view_find_node (tree_view,
parent,
&tree,
&node))
return;
/* We need to special case the parent path */
if (tree == NULL)
tree = tree_view->priv->tree;
else
tree = node->children;
if (tree == NULL)
return;
if (tree_view->priv->edited_column)
gtk_tree_view_stop_editing (tree_view, TRUE);
/* we need to be unprelighted */
ensure_unprelighted (tree_view);
/* clear the timeout */
cancel_arrow_animation (tree_view);
_gtk_rbtree_reorder (tree, new_order, len);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
gtk_tree_view_dy_to_top_row (tree_view);
}
/* Internal tree functions
*/
static void
gtk_tree_view_get_background_xrange (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeViewColumn *column,
gint *x1,
gint *x2)
{
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
GList *list;
gboolean rtl;
if (x1)
*x1 = 0;
if (x2)
*x2 = 0;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
total_width = 0;
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
tmp_column = list->data;
if (tmp_column == column)
break;
if (tmp_column->visible)
total_width += tmp_column->width;
}
if (tmp_column != column)
{
g_warning (G_STRLOC": passed-in column isn't in the tree");
return;
}
if (x1)
*x1 = total_width;
if (x2)
{
if (column->visible)
*x2 = total_width + column->width;
else
*x2 = total_width; /* width of 0 */
}
}
static void
gtk_tree_view_get_arrow_xrange (GtkTreeView *tree_view,
GtkRBTree *tree,
gint *x1,
gint *x2)
{
gint x_offset = 0;
GList *list;
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
gboolean indent_expanders;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
total_width = 0;
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
tmp_column = list->data;
if (gtk_tree_view_is_expander_column (tree_view, tmp_column))
{
if (rtl)
x_offset = total_width + tmp_column->width - tree_view->priv->expander_size;
else
x_offset = total_width;
break;
}
if (tmp_column->visible)
total_width += tmp_column->width;
}
gtk_widget_style_get (GTK_WIDGET (tree_view),
"indent-expanders", &indent_expanders,
NULL);
if (indent_expanders)
{
if (rtl)
x_offset -= tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
else
x_offset += tree_view->priv->expander_size * _gtk_rbtree_get_depth (tree);
}
*x1 = x_offset;
if (tmp_column && tmp_column->visible)
/* +1 because x2 isn't included in the range. */
*x2 = *x1 + tree_view->priv->expander_size + 1;
else
*x2 = *x1;
}
static void
gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse)
{
GtkRBNode *temp = NULL;
GtkTreePath *path = NULL;
gboolean is_list = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST);
do
{
gtk_tree_model_ref_node (tree_view->priv->model, iter);
temp = _gtk_rbtree_insert_after (tree, temp, 0, FALSE);
if (tree_view->priv->fixed_height > 0)
{
if (GTK_RBNODE_FLAG_SET (temp, GTK_RBNODE_INVALID))
{
_gtk_rbtree_node_set_height (tree, temp, tree_view->priv->fixed_height);
_gtk_rbtree_node_mark_valid (tree, temp);
}
}
if (is_list)
continue;
if (recurse)
{
GtkTreeIter child;
if (!path)
path = gtk_tree_model_get_path (tree_view->priv->model, iter);
else
gtk_tree_path_next (path);
if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
{
gboolean expand;
g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, iter, path, &expand);
if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter)
&& !expand)
{
temp->children = _gtk_rbtree_new ();
temp->children->parent_tree = tree;
temp->children->parent_node = temp;
gtk_tree_view_build_tree (tree_view, temp->children, &child, depth + 1, recurse);
}
}
}
if (gtk_tree_model_iter_has_child (tree_view->priv->model, iter))
{
if ((temp->flags&GTK_RBNODE_IS_PARENT) != GTK_RBNODE_IS_PARENT)
temp->flags ^= GTK_RBNODE_IS_PARENT;
}
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
if (path)
gtk_tree_path_free (path);
}
/* Make sure the node is visible vertically */
static void
gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
gint node_dy, height;
GtkTreePath *path = NULL;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
/* just return if the node is visible, avoiding a costly expose */
node_dy = _gtk_rbtree_node_find_offset (tree, node);
height = ROW_HEIGHT (tree_view, GTK_RBNODE_GET_HEIGHT (node));
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_INVALID)
&& node_dy >= tree_view->priv->vadjustment->value
&& node_dy + height <= (tree_view->priv->vadjustment->value
+ tree_view->priv->vadjustment->page_size))
return;
path = _gtk_tree_view_find_path (tree_view, tree, node);
if (path)
{
/* We process updates because we want to clear old selected items when we scroll.
* if this is removed, we get a "selection streak" at the bottom. */
gtk_tree_view_bin_process_updates (tree_view);
gtk_tree_view_scroll_to_cell (tree_view, path, NULL, FALSE, 0.0, 0.0);
gtk_tree_path_free (path);
}
}
static void
gtk_tree_view_clamp_column_visible (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gboolean focus_to_cell)
{
GtkAllocation allocation;
gint x, width;
if (column == NULL)
return;
gtk_widget_get_allocation (column->button, &allocation);
x = allocation.x;
width = allocation.width;
if (width > tree_view->priv->hadjustment->page_size)
{
/* The column is larger than the horizontal page size. If the
* column has cells which can be focussed individually, then we make
* sure the cell which gets focus is fully visible (if even the
* focus cell is bigger than the page size, we make sure the
* left-hand side of the cell is visible).
*
* If the column does not have those so-called special cells, we
* make sure the left-hand side of the column is visible.
*/
if (focus_to_cell && gtk_tree_view_has_special_cell (tree_view))
{
GtkTreePath *cursor_path;
GdkRectangle background_area, cell_area, focus_area;
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
gtk_tree_view_get_cell_area (tree_view,
cursor_path, column, &cell_area);
gtk_tree_view_get_background_area (tree_view,
cursor_path, column,
&background_area);
gtk_tree_path_free (cursor_path);
_gtk_tree_view_column_get_focus_area (column,
&background_area,
&cell_area,
&focus_area);
x = focus_area.x;
width = focus_area.width;
if (width < tree_view->priv->hadjustment->page_size)
{
if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
gtk_adjustment_set_value (tree_view->priv->hadjustment,
x + width - tree_view->priv->hadjustment->page_size);
else if (tree_view->priv->hadjustment->value > x)
gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
}
}
gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
}
else
{
if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) < (x + width))
gtk_adjustment_set_value (tree_view->priv->hadjustment,
x + width - tree_view->priv->hadjustment->page_size);
else if (tree_view->priv->hadjustment->value > x)
gtk_adjustment_set_value (tree_view->priv->hadjustment, x);
}
}
/* This function could be more efficient. I'll optimize it if profiling seems
* to imply that it is important */
GtkTreePath *
_gtk_tree_view_find_path (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
GtkTreePath *path;
GtkRBTree *tmp_tree;
GtkRBNode *tmp_node, *last;
gint count;
path = gtk_tree_path_new ();
g_return_val_if_fail (node != NULL, path);
g_return_val_if_fail (node != tree->nil, path);
count = 1 + node->left->count;
last = node;
tmp_node = node->parent;
tmp_tree = tree;
while (tmp_tree)
{
while (tmp_node != tmp_tree->nil)
{
if (tmp_node->right == last)
count += 1 + tmp_node->left->count;
last = tmp_node;
tmp_node = tmp_node->parent;
}
gtk_tree_path_prepend_index (path, count - 1);
last = tmp_tree->parent_node;
tmp_tree = tmp_tree->parent_tree;
if (last)
{
count = 1 + last->left->count;
tmp_node = last->parent;
}
}
return path;
}
/* Returns TRUE if we ran out of tree before finding the path. If the path is
* invalid (ie. points to a node that's not in the tree), *tree and *node are
* both set to NULL.
*/
gboolean
_gtk_tree_view_find_node (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree **tree,
GtkRBNode **node)
{
GtkRBNode *tmpnode = NULL;
GtkRBTree *tmptree = tree_view->priv->tree;
gint *indices = gtk_tree_path_get_indices (path);
gint depth = gtk_tree_path_get_depth (path);
gint i = 0;
*node = NULL;
*tree = NULL;
if (depth == 0 || tmptree == NULL)
return FALSE;
do
{
tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
++i;
if (tmpnode == NULL)
{
*tree = NULL;
*node = NULL;
return FALSE;
}
if (i >= depth)
{
*tree = tmptree;
*node = tmpnode;
return FALSE;
}
*tree = tmptree;
*node = tmpnode;
tmptree = tmpnode->children;
if (tmptree == NULL)
return TRUE;
}
while (1);
}
static gboolean
gtk_tree_view_is_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
GList *list;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IS_LIST))
return FALSE;
if (tree_view->priv->expander_column != NULL)
{
if (tree_view->priv->expander_column == column)
return TRUE;
return FALSE;
}
else
{
for (list = tree_view->priv->columns;
list;
list = list->next)
if (((GtkTreeViewColumn *)list->data)->visible)
break;
if (list && list->data == column)
return TRUE;
}
return FALSE;
}
static void
gtk_tree_view_add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
gboolean add_shifted_binding,
GtkMovementStep step,
gint count)
{
gtk_binding_entry_add_signal (binding_set, keyval, modmask,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
if (add_shifted_binding)
gtk_binding_entry_add_signal (binding_set, keyval, GDK_SHIFT_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
if ((modmask & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
return;
gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
gtk_binding_entry_add_signal (binding_set, keyval, GDK_CONTROL_MASK,
"move-cursor", 2,
G_TYPE_ENUM, step,
G_TYPE_INT, count);
}
static gint
gtk_tree_view_unref_tree_helper (GtkTreeModel *model,
GtkTreeIter *iter,
GtkRBTree *tree,
GtkRBNode *node)
{
gint retval = FALSE;
do
{
g_return_val_if_fail (node != NULL, FALSE);
if (node->children)
{
GtkTreeIter child;
GtkRBTree *new_tree;
GtkRBNode *new_node;
new_tree = node->children;
new_node = new_tree->root;
while (new_node && new_node->left != new_tree->nil)
new_node = new_node->left;
if (!gtk_tree_model_iter_children (model, &child, iter))
return FALSE;
retval = retval || gtk_tree_view_unref_tree_helper (model, &child, new_tree, new_node);
}
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
retval = TRUE;
gtk_tree_model_unref_node (model, iter);
node = _gtk_rbtree_next (tree, node);
}
while (gtk_tree_model_iter_next (model, iter));
return retval;
}
static gint
gtk_tree_view_unref_and_check_selection_tree (GtkTreeView *tree_view,
GtkRBTree *tree)
{
GtkTreeIter iter;
GtkTreePath *path;
GtkRBNode *node;
gint retval;
if (!tree)
return FALSE;
node = tree->root;
while (node && node->left != tree->nil)
node = node->left;
g_return_val_if_fail (node != NULL, FALSE);
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->priv->model),
&iter, path);
retval = gtk_tree_view_unref_tree_helper (GTK_TREE_MODEL (tree_view->priv->model), &iter, tree, node);
gtk_tree_path_free (path);
return retval;
}
static void
gtk_tree_view_set_column_drag_info (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
GtkTreeViewColumn *left_column;
GtkTreeViewColumn *cur_column = NULL;
GtkTreeViewColumnReorder *reorder;
gboolean rtl;
GList *tmp_list;
gint left;
/* We want to precalculate the motion list such that we know what column slots
* are available.
*/
left_column = NULL;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
/* First, identify all possible drop spots */
if (rtl)
tmp_list = g_list_last (tree_view->priv->columns);
else
tmp_list = g_list_first (tree_view->priv->columns);
while (tmp_list)
{
cur_column = GTK_TREE_VIEW_COLUMN (tmp_list->data);
tmp_list = rtl?g_list_previous (tmp_list):g_list_next (tmp_list);
if (cur_column->visible == FALSE)
continue;
/* If it's not the column moving and func tells us to skip over the column, we continue. */
if (left_column != column && cur_column != column &&
tree_view->priv->column_drop_func &&
! tree_view->priv->column_drop_func (tree_view, column, left_column, cur_column, tree_view->priv->column_drop_func_data))
{
left_column = cur_column;
continue;
}
reorder = g_slice_new0 (GtkTreeViewColumnReorder);
reorder->left_column = left_column;
left_column = reorder->right_column = cur_column;
tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
}
/* Add the last one */
if (tree_view->priv->column_drop_func == NULL ||
((left_column != column) &&
tree_view->priv->column_drop_func (tree_view, column, left_column, NULL, tree_view->priv->column_drop_func_data)))
{
reorder = g_slice_new0 (GtkTreeViewColumnReorder);
reorder->left_column = left_column;
reorder->right_column = NULL;
tree_view->priv->column_drag_info = g_list_append (tree_view->priv->column_drag_info, reorder);
}
/* We quickly check to see if it even makes sense to reorder columns. */
/* If there is nothing that can be moved, then we return */
if (tree_view->priv->column_drag_info == NULL)
return;
/* We know there are always 2 slots possbile, as you can always return column. */
/* If that's all there is, return */
if (tree_view->priv->column_drag_info->next == NULL ||
(tree_view->priv->column_drag_info->next->next == NULL &&
((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->data)->right_column == column &&
((GtkTreeViewColumnReorder *)tree_view->priv->column_drag_info->next->data)->left_column == column))
{
for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
g_slice_free (GtkTreeViewColumnReorder, tmp_list->data);
g_list_free (tree_view->priv->column_drag_info);
tree_view->priv->column_drag_info = NULL;
return;
}
/* We fill in the ranges for the columns, now that we've isolated them */
left = - TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
for (tmp_list = tree_view->priv->column_drag_info; tmp_list; tmp_list = tmp_list->next)
{
reorder = (GtkTreeViewColumnReorder *) tmp_list->data;
reorder->left_align = left;
if (tmp_list->next != NULL)
{
GtkAllocation right_allocation, left_allocation;
g_assert (tmp_list->next->data);
gtk_widget_get_allocation (reorder->right_column->button, &right_allocation);
gtk_widget_get_allocation (((GtkTreeViewColumnReorder *)tmp_list->next->data)->left_column->button, &left_allocation);
left = reorder->right_align = (right_allocation.x + right_allocation.width + left_allocation.x) / 2;
}
else
{
reorder->right_align = gdk_window_get_width (tree_view->priv->header_window)
+ TREE_VIEW_COLUMN_DRAG_DEAD_MULTIPLIER (tree_view);
}
}
}
void
_gtk_tree_view_column_start_drag (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GdkDevice *device)
{
GdkEvent *send_event;
GtkAllocation allocation;
GtkAllocation button_allocation;
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
GdkDisplay *display = gdk_screen_get_display (screen);
g_return_if_fail (tree_view->priv->column_drag_info == NULL);
g_return_if_fail (tree_view->priv->cur_reorder == NULL);
gtk_tree_view_set_column_drag_info (tree_view, column);
if (tree_view->priv->column_drag_info == NULL)
return;
if (tree_view->priv->drag_window == NULL)
{
GdkWindowAttr attributes;
guint attributes_mask;
gtk_widget_get_allocation (column->button, &button_allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.x = button_allocation.x;
attributes.y = 0;
attributes.width = button_allocation.width;
attributes.height = button_allocation.height;
attributes.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
tree_view->priv->drag_window = gdk_window_new (tree_view->priv->bin_window,
&attributes,
attributes_mask);
gdk_window_set_user_data (tree_view->priv->drag_window, GTK_WIDGET (tree_view));
}
gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
gtk_grab_remove (column->button);
send_event = gdk_event_new (GDK_LEAVE_NOTIFY);
send_event->crossing.send_event = TRUE;
send_event->crossing.window = g_object_ref (GTK_BUTTON (column->button)->event_window);
send_event->crossing.subwindow = NULL;
send_event->crossing.detail = GDK_NOTIFY_ANCESTOR;
send_event->crossing.time = GDK_CURRENT_TIME;
gdk_event_set_device (send_event, device);
gtk_propagate_event (column->button, send_event);
gdk_event_free (send_event);
send_event = gdk_event_new (GDK_BUTTON_RELEASE);
send_event->button.window = g_object_ref (gdk_screen_get_root_window (screen));
send_event->button.send_event = TRUE;
send_event->button.time = GDK_CURRENT_TIME;
send_event->button.x = -1;
send_event->button.y = -1;
send_event->button.axes = NULL;
send_event->button.state = 0;
send_event->button.button = 1;
send_event->button.x_root = 0;
send_event->button.y_root = 0;
gdk_event_set_device (send_event, device);
gtk_propagate_event (column->button, send_event);
gdk_event_free (send_event);
/* Kids, don't try this at home */
g_object_ref (column->button);
gtk_container_remove (GTK_CONTAINER (tree_view), column->button);
gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
gtk_widget_set_parent (column->button, GTK_WIDGET (tree_view));
g_object_unref (column->button);
gtk_widget_get_allocation (column->button, &button_allocation);
tree_view->priv->drag_column_x = button_allocation.x;
allocation = button_allocation;
allocation.x = 0;
gtk_widget_size_allocate (column->button, &allocation);
gtk_widget_set_parent_window (column->button, tree_view->priv->drag_window);
tree_view->priv->drag_column = column;
gdk_window_show (tree_view->priv->drag_window);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
while (gtk_events_pending ())
gtk_main_iteration ();
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_DRAG);
gdk_pointer_grab (tree_view->priv->drag_window,
FALSE,
GDK_POINTER_MOTION_MASK|GDK_BUTTON_RELEASE_MASK,
NULL, NULL, GDK_CURRENT_TIME);
gdk_keyboard_grab (tree_view->priv->drag_window,
FALSE,
GDK_CURRENT_TIME);
}
static void
gtk_tree_view_queue_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
GtkAllocation allocation;
GdkRectangle rect;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
rect.x = 0;
rect.width = MAX (tree_view->priv->expander_size, MAX (tree_view->priv->width, allocation.width));
rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
}
void
_gtk_tree_view_queue_draw_node (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
const GdkRectangle *clip_rect)
{
GtkAllocation allocation;
GdkRectangle rect;
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return;
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
rect.x = 0;
rect.width = MAX (tree_view->priv->width, allocation.width);
rect.y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
rect.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
if (clip_rect)
{
GdkRectangle new_rect;
gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
gdk_window_invalidate_rect (tree_view->priv->bin_window, &new_rect, TRUE);
}
else
{
gdk_window_invalidate_rect (tree_view->priv->bin_window, &rect, TRUE);
}
}
static void
gtk_tree_view_queue_draw_path (GtkTreeView *tree_view,
GtkTreePath *path,
const GdkRectangle *clip_rect)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree)
_gtk_tree_view_queue_draw_node (tree_view, tree, node, clip_rect);
}
/* x and y are the mouse position
*/
static void
gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
cairo_t *cr,
GtkRBTree *tree,
GtkRBNode *node,
/* in bin_window coordinates */
gint x,
gint y)
{
GdkRectangle area;
GtkStateType state;
GtkWidget *widget;
gint x_offset = 0;
gint x2;
gint vertical_separator;
gint expander_size;
GtkExpanderStyle expander_style;
widget = GTK_WIDGET (tree_view);
gtk_widget_style_get (widget,
"vertical-separator", &vertical_separator,
NULL);
expander_size = tree_view->priv->expander_size - EXPANDER_EXTRA_PADDING;
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
return;
gtk_tree_view_get_arrow_xrange (tree_view, tree, &x_offset, &x2);
area.x = x_offset;
area.y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
area.width = expander_size + 2;
area.height = MAX (CELL_HEIGHT (node, vertical_separator), (expander_size - vertical_separator));
if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE)
{
state = GTK_STATE_INSENSITIVE;
}
else if (node == tree_view->priv->button_pressed_node)
{
if (x >= area.x && x <= (area.x + area.width) &&
y >= area.y && y <= (area.y + area.height))
state = GTK_STATE_ACTIVE;
else
state = GTK_STATE_NORMAL;
}
else
{
if (node == tree_view->priv->prelight_node &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
state = GTK_STATE_PRELIGHT;
else
state = GTK_STATE_NORMAL;
}
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
expander_style = GTK_EXPANDER_SEMI_EXPANDED;
else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
expander_style = GTK_EXPANDER_SEMI_COLLAPSED;
else if (node->children != NULL)
expander_style = GTK_EXPANDER_EXPANDED;
else
expander_style = GTK_EXPANDER_COLLAPSED;
gtk_paint_expander (gtk_widget_get_style (widget),
cr,
state,
widget,
"treeview",
area.x + area.width / 2,
area.y + area.height / 2,
expander_style);
}
static void
gtk_tree_view_focus_to_cursor (GtkTreeView *tree_view)
{
GtkTreePath *cursor_path;
if ((tree_view->priv->tree == NULL) ||
(! gtk_widget_get_realized (GTK_WIDGET (tree_view))))
return;
cursor_path = NULL;
if (tree_view->priv->cursor)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (cursor_path == NULL)
{
/* Consult the selection before defaulting to the
* first focusable element
*/
GList *selected_rows;
GtkTreeModel *model;
GtkTreeSelection *selection;
selection = gtk_tree_view_get_selection (tree_view);
selected_rows = gtk_tree_selection_get_selected_rows (selection, &model);
if (selected_rows)
{
cursor_path = gtk_tree_path_copy((const GtkTreePath *)(selected_rows->data));
g_list_foreach (selected_rows, (GFunc)gtk_tree_path_free, NULL);
g_list_free (selected_rows);
}
else
{
cursor_path = gtk_tree_path_new_first ();
search_first_focusable_path (tree_view, &cursor_path,
TRUE, NULL, NULL);
}
gtk_tree_row_reference_free (tree_view->priv->cursor);
tree_view->priv->cursor = NULL;
if (cursor_path)
{
if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE)
gtk_tree_view_real_set_cursor (tree_view, cursor_path, FALSE, FALSE);
else
gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
}
}
if (cursor_path)
{
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
gtk_tree_path_free (cursor_path);
if (tree_view->priv->focus_column == NULL)
{
GList *list;
for (list = tree_view->priv->columns; list; list = list->next)
{
if (GTK_TREE_VIEW_COLUMN (list->data)->visible)
{
tree_view->priv->focus_column = GTK_TREE_VIEW_COLUMN (list->data);
break;
}
}
}
}
}
static void
gtk_tree_view_move_cursor_up_down (GtkTreeView *tree_view,
gint count)
{
gint selection_count;
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor_node = NULL;
GtkRBTree *new_cursor_tree = NULL;
GtkRBNode *new_cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
gboolean grab_focus = TRUE;
gboolean selectable;
if (! gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
cursor_path = NULL;
if (!gtk_tree_row_reference_valid (tree_view->priv->cursor))
/* FIXME: we lost the cursor; should we get the first? */
return;
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
_gtk_tree_view_find_node (tree_view, cursor_path,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
/* FIXME: we lost the cursor; should we get the first? */
return;
selection_count = gtk_tree_selection_count_selected_rows (tree_view->priv->selection);
selectable = _gtk_tree_selection_row_is_selectable (tree_view->priv->selection,
cursor_node,
cursor_path);
if (selection_count == 0
&& tree_view->priv->selection->type != GTK_SELECTION_NONE
&& !tree_view->priv->ctrl_pressed
&& selectable)
{
/* Don't move the cursor, but just select the current node */
new_cursor_tree = cursor_tree;
new_cursor_node = cursor_node;
}
else
{
if (count == -1)
_gtk_rbtree_prev_full (cursor_tree, cursor_node,
&new_cursor_tree, &new_cursor_node);
else
_gtk_rbtree_next_full (cursor_tree, cursor_node,
&new_cursor_tree, &new_cursor_node);
}
gtk_tree_path_free (cursor_path);
if (new_cursor_node)
{
cursor_path = _gtk_tree_view_find_path (tree_view,
new_cursor_tree, new_cursor_node);
search_first_focusable_path (tree_view, &cursor_path,
(count != -1),
&new_cursor_tree,
&new_cursor_node);
if (cursor_path)
gtk_tree_path_free (cursor_path);
}
/*
* If the list has only one item and multi-selection is set then select
* the row (if not yet selected).
*/
if (tree_view->priv->selection->type == GTK_SELECTION_MULTIPLE &&
new_cursor_node == NULL)
{
if (count == -1)
_gtk_rbtree_next_full (cursor_tree, cursor_node,
&new_cursor_tree, &new_cursor_node);
else
_gtk_rbtree_prev_full (cursor_tree, cursor_node,
&new_cursor_tree, &new_cursor_node);
if (new_cursor_node == NULL
&& !GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_SELECTED))
{
new_cursor_node = cursor_node;
new_cursor_tree = cursor_tree;
}
else
{
new_cursor_node = NULL;
}
}
if (new_cursor_node)
{
cursor_path = _gtk_tree_view_find_path (tree_view, new_cursor_tree, new_cursor_node);
gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, TRUE);
gtk_tree_path_free (cursor_path);
}
else
{
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
if (!tree_view->priv->shift_pressed)
{
if (! gtk_widget_keynav_failed (GTK_WIDGET (tree_view),
count < 0 ?
GTK_DIR_UP : GTK_DIR_DOWN))
{
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
if (toplevel)
gtk_widget_child_focus (toplevel,
count < 0 ?
GTK_DIR_TAB_BACKWARD :
GTK_DIR_TAB_FORWARD);
grab_focus = FALSE;
}
}
else
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
}
}
if (grab_focus)
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}
static void
gtk_tree_view_move_cursor_page_up_down (GtkTreeView *tree_view,
gint count)
{
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor_node = NULL;
GtkTreePath *old_cursor_path = NULL;
GtkTreePath *cursor_path = NULL;
GtkRBTree *start_cursor_tree = NULL;
GtkRBNode *start_cursor_node = NULL;
gint y;
gint window_y;
gint vertical_separator;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
old_cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
else
/* This is sorta weird. Focus in should give us a cursor */
return;
gtk_widget_style_get (GTK_WIDGET (tree_view), "vertical-separator", &vertical_separator, NULL);
_gtk_tree_view_find_node (tree_view, old_cursor_path,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
/* FIXME: we lost the cursor. Should we try to get one? */
gtk_tree_path_free (old_cursor_path);
return;
}
g_return_if_fail (cursor_node != NULL);
y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
window_y = RBTREE_Y_TO_TREE_WINDOW_Y (tree_view, y);
y += tree_view->priv->cursor_offset;
y += count * (int)tree_view->priv->vadjustment->page_increment;
y = CLAMP (y, (gint)tree_view->priv->vadjustment->lower, (gint)tree_view->priv->vadjustment->upper - vertical_separator);
if (y >= tree_view->priv->height)
y = tree_view->priv->height - 1;
tree_view->priv->cursor_offset =
_gtk_rbtree_find_offset (tree_view->priv->tree, y,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
/* FIXME: we lost the cursor. Should we try to get one? */
gtk_tree_path_free (old_cursor_path);
return;
}
if (tree_view->priv->cursor_offset > BACKGROUND_HEIGHT (cursor_node))
{
_gtk_rbtree_next_full (cursor_tree, cursor_node,
&cursor_tree, &cursor_node);
tree_view->priv->cursor_offset -= BACKGROUND_HEIGHT (cursor_node);
}
y -= tree_view->priv->cursor_offset;
cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
start_cursor_tree = cursor_tree;
start_cursor_node = cursor_node;
if (! search_first_focusable_path (tree_view, &cursor_path,
(count != -1),
&cursor_tree, &cursor_node))
{
/* It looks like we reached the end of the view without finding
* a focusable row. We will step backwards to find the last
* focusable row.
*/
cursor_tree = start_cursor_tree;
cursor_node = start_cursor_node;
cursor_path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
search_first_focusable_path (tree_view, &cursor_path,
(count == -1),
&cursor_tree, &cursor_node);
}
if (!cursor_path)
goto cleanup;
/* update y */
y = _gtk_rbtree_node_find_offset (cursor_tree, cursor_node);
gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
y -= window_y;
gtk_tree_view_scroll_to_point (tree_view, -1, y);
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
_gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
if (!gtk_tree_path_compare (old_cursor_path, cursor_path))
gtk_widget_error_bell (GTK_WIDGET (tree_view));
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
cleanup:
gtk_tree_path_free (old_cursor_path);
gtk_tree_path_free (cursor_path);
}
static void
gtk_tree_view_move_cursor_left_right (GtkTreeView *tree_view,
gint count)
{
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
GtkTreeViewColumn *column;
GtkTreeIter iter;
GList *list;
gboolean found_column = FALSE;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
else
return;
_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node);
if (cursor_tree == NULL)
return;
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path) == FALSE)
{
gtk_tree_path_free (cursor_path);
return;
}
gtk_tree_path_free (cursor_path);
list = rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns);
if (tree_view->priv->focus_column)
{
for (; list; list = (rtl ? list->prev : list->next))
{
if (list->data == tree_view->priv->focus_column)
break;
}
}
while (list)
{
gboolean left, right;
column = list->data;
if (column->visible == FALSE)
goto loop_end;
gtk_tree_view_column_cell_set_cell_data (column,
tree_view->priv->model,
&iter,
GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
cursor_node->children?TRUE:FALSE);
if (rtl)
{
right = list->prev ? TRUE : FALSE;
left = list->next ? TRUE : FALSE;
}
else
{
left = list->prev ? TRUE : FALSE;
right = list->next ? TRUE : FALSE;
}
if (_gtk_tree_view_column_cell_focus (column, count, left, right))
{
tree_view->priv->focus_column = column;
found_column = TRUE;
break;
}
loop_end:
if (count == 1)
list = rtl ? list->prev : list->next;
else
list = rtl ? list->next : list->prev;
}
if (found_column)
{
if (!gtk_tree_view_has_special_cell (tree_view))
_gtk_tree_view_queue_draw_node (tree_view,
cursor_tree,
cursor_node,
NULL);
g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}
else
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
}
gtk_tree_view_clamp_column_visible (tree_view,
tree_view->priv->focus_column, TRUE);
}
static void
gtk_tree_view_move_cursor_start_end (GtkTreeView *tree_view,
gint count)
{
GtkRBTree *cursor_tree;
GtkRBNode *cursor_node;
GtkTreePath *path;
GtkTreePath *old_path;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return;
g_return_if_fail (tree_view->priv->tree != NULL);
gtk_tree_view_get_cursor (tree_view, &old_path, NULL);
cursor_tree = tree_view->priv->tree;
cursor_node = cursor_tree->root;
if (count == -1)
{
while (cursor_node && cursor_node->left != cursor_tree->nil)
cursor_node = cursor_node->left;
/* Now go forward to find the first focusable row. */
path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
search_first_focusable_path (tree_view, &path,
TRUE, &cursor_tree, &cursor_node);
}
else
{
do
{
while (cursor_node && cursor_node->right != cursor_tree->nil)
cursor_node = cursor_node->right;
if (cursor_node->children == NULL)
break;
cursor_tree = cursor_node->children;
cursor_node = cursor_tree->root;
}
while (1);
/* Now go backwards to find last focusable row. */
path = _gtk_tree_view_find_path (tree_view, cursor_tree, cursor_node);
search_first_focusable_path (tree_view, &path,
FALSE, &cursor_tree, &cursor_node);
}
if (!path)
goto cleanup;
if (gtk_tree_path_compare (old_path, path))
{
gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
}
else
{
gtk_widget_error_bell (GTK_WIDGET (tree_view));
}
cleanup:
gtk_tree_path_free (old_path);
gtk_tree_path_free (path);
}
static gboolean
gtk_tree_view_real_select_all (GtkTreeView *tree_view)
{
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
return FALSE;
gtk_tree_selection_select_all (tree_view->priv->selection);
return TRUE;
}
static gboolean
gtk_tree_view_real_unselect_all (GtkTreeView *tree_view)
{
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (tree_view->priv->selection->type != GTK_SELECTION_MULTIPLE)
return FALSE;
gtk_tree_selection_unselect_all (tree_view->priv->selection);
return TRUE;
}
static gboolean
gtk_tree_view_real_select_cursor_row (GtkTreeView *tree_view,
gboolean start_editing)
{
GtkRBTree *new_tree = NULL;
GtkRBNode *new_node = NULL;
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
GtkTreeSelectMode mode = 0;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
if (tree_view->priv->cursor)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (cursor_path == NULL)
return FALSE;
_gtk_tree_view_find_node (tree_view, cursor_path,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
gtk_tree_path_free (cursor_path);
return FALSE;
}
if (!tree_view->priv->shift_pressed && start_editing &&
tree_view->priv->focus_column)
{
if (gtk_tree_view_start_editing (tree_view, cursor_path))
{
gtk_tree_path_free (cursor_path);
return TRUE;
}
}
if (tree_view->priv->ctrl_pressed)
mode |= GTK_TREE_SELECT_MODE_TOGGLE;
if (tree_view->priv->shift_pressed)
mode |= GTK_TREE_SELECT_MODE_EXTEND;
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
cursor_node,
cursor_tree,
cursor_path,
mode,
FALSE);
/* We bail out if the original (tree, node) don't exist anymore after
* handling the selection-changed callback. We do return TRUE because
* the key press has been handled at this point.
*/
_gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
if (cursor_tree != new_tree || cursor_node != new_node)
return FALSE;
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
_gtk_tree_view_queue_draw_node (tree_view, cursor_tree, cursor_node, NULL);
if (!tree_view->priv->shift_pressed)
gtk_tree_view_row_activated (tree_view, cursor_path,
tree_view->priv->focus_column);
gtk_tree_path_free (cursor_path);
return TRUE;
}
static gboolean
gtk_tree_view_real_toggle_cursor_row (GtkTreeView *tree_view)
{
GtkRBTree *new_tree = NULL;
GtkRBNode *new_node = NULL;
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
cursor_path = NULL;
if (tree_view->priv->cursor)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (cursor_path == NULL)
return FALSE;
_gtk_tree_view_find_node (tree_view, cursor_path,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
gtk_tree_path_free (cursor_path);
return FALSE;
}
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
cursor_node,
cursor_tree,
cursor_path,
GTK_TREE_SELECT_MODE_TOGGLE,
FALSE);
/* We bail out if the original (tree, node) don't exist anymore after
* handling the selection-changed callback. We do return TRUE because
* the key press has been handled at this point.
*/
_gtk_tree_view_find_node (tree_view, cursor_path, &new_tree, &new_node);
if (cursor_tree != new_tree || cursor_node != new_node)
return FALSE;
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
gtk_tree_path_free (cursor_path);
return TRUE;
}
static gboolean
gtk_tree_view_real_expand_collapse_cursor_row (GtkTreeView *tree_view,
gboolean logical,
gboolean expand,
gboolean open_all)
{
GtkTreePath *cursor_path = NULL;
GtkRBTree *tree;
GtkRBNode *node;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
return FALSE;
cursor_path = NULL;
if (tree_view->priv->cursor)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (cursor_path == NULL)
return FALSE;
if (_gtk_tree_view_find_node (tree_view, cursor_path, &tree, &node))
return FALSE;
/* Don't handle the event if we aren't an expander */
if (!((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
return FALSE;
if (!logical
&& gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL)
expand = !expand;
if (expand)
gtk_tree_view_real_expand_row (tree_view, cursor_path, tree, node, open_all, TRUE);
else
gtk_tree_view_real_collapse_row (tree_view, cursor_path, tree, node, TRUE);
gtk_tree_path_free (cursor_path);
return TRUE;
}
static gboolean
gtk_tree_view_real_select_cursor_parent (GtkTreeView *tree_view)
{
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor_node = NULL;
GtkTreePath *cursor_path = NULL;
GdkModifierType state;
if (!gtk_widget_has_focus (GTK_WIDGET (tree_view)))
goto out;
cursor_path = NULL;
if (tree_view->priv->cursor)
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (cursor_path == NULL)
goto out;
_gtk_tree_view_find_node (tree_view, cursor_path,
&cursor_tree, &cursor_node);
if (cursor_tree == NULL)
{
gtk_tree_path_free (cursor_path);
goto out;
}
if (cursor_tree->parent_node)
{
gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
cursor_node = cursor_tree->parent_node;
cursor_tree = cursor_tree->parent_tree;
gtk_tree_path_up (cursor_path);
if (gtk_get_current_event_state (&state))
{
if ((state & GDK_CONTROL_MASK) == GDK_CONTROL_MASK)
tree_view->priv->ctrl_pressed = TRUE;
}
gtk_tree_view_real_set_cursor (tree_view, cursor_path, TRUE, FALSE);
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
gtk_tree_path_free (cursor_path);
tree_view->priv->ctrl_pressed = FALSE;
return TRUE;
}
out:
tree_view->priv->search_entry_avoid_unhandled_binding = TRUE;
return FALSE;
}
static gboolean
gtk_tree_view_search_entry_flush_timeout (GtkTreeView *tree_view)
{
gtk_tree_view_search_dialog_hide (tree_view->priv->search_window, tree_view, NULL);
tree_view->priv->typeselect_flush_timeout = 0;
return FALSE;
}
/* Cut and paste from gtkwindow.c */
static void
send_focus_change (GtkWidget *widget,
GdkDevice *device,
gboolean in)
{
GdkDeviceManager *device_manager;
GList *devices, *d;
device_manager = gdk_display_get_device_manager (gtk_widget_get_display (widget));
devices = gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_MASTER);
devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_SLAVE));
devices = g_list_concat (devices, gdk_device_manager_list_devices (device_manager, GDK_DEVICE_TYPE_FLOATING));
for (d = devices; d; d = d->next)
{
GdkDevice *dev = d->data;
GdkEvent *fevent;
GdkWindow *window;
if (dev->source != GDK_SOURCE_KEYBOARD)
continue;
window = gtk_widget_get_window (widget);
/* Skip non-master keyboards that haven't
* selected for events from this window
*/
if (gdk_device_get_device_type (dev) != GDK_DEVICE_TYPE_MASTER &&
!gdk_window_get_device_events (window, dev))
continue;
fevent = gdk_event_new (GDK_FOCUS_CHANGE);
fevent->focus_change.type = GDK_FOCUS_CHANGE;
fevent->focus_change.window = g_object_ref (window);
fevent->focus_change.in = in;
gdk_event_set_device (fevent, device);
gtk_widget_send_focus_change (widget, fevent);
gdk_event_free (fevent);
}
}
static void
gtk_tree_view_ensure_interactive_directory (GtkTreeView *tree_view)
{
GtkWidget *frame, *vbox, *toplevel;
GdkScreen *screen;
if (tree_view->priv->search_custom_entry_set)
return;
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
screen = gtk_widget_get_screen (GTK_WIDGET (tree_view));
if (tree_view->priv->search_window != NULL)
{
if (gtk_window_has_group (GTK_WINDOW (toplevel)))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (tree_view->priv->search_window));
else if (gtk_window_has_group (GTK_WINDOW (tree_view->priv->search_window)))
gtk_window_group_remove_window (gtk_window_get_group (GTK_WINDOW (tree_view->priv->search_window)),
GTK_WINDOW (tree_view->priv->search_window));
gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
return;
}
tree_view->priv->search_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_screen (GTK_WINDOW (tree_view->priv->search_window), screen);
if (gtk_window_has_group (GTK_WINDOW (toplevel)))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (tree_view->priv->search_window));
gtk_window_set_type_hint (GTK_WINDOW (tree_view->priv->search_window),
GDK_WINDOW_TYPE_HINT_UTILITY);
gtk_window_set_modal (GTK_WINDOW (tree_view->priv->search_window), TRUE);
g_signal_connect (tree_view->priv->search_window, "delete-event",
G_CALLBACK (gtk_tree_view_search_delete_event),
tree_view);
g_signal_connect (tree_view->priv->search_window, "key-press-event",
G_CALLBACK (gtk_tree_view_search_key_press_event),
tree_view);
g_signal_connect (tree_view->priv->search_window, "button-press-event",
G_CALLBACK (gtk_tree_view_search_button_press_event),
tree_view);
g_signal_connect (tree_view->priv->search_window, "scroll-event",
G_CALLBACK (gtk_tree_view_search_scroll_event),
tree_view);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_widget_show (frame);
gtk_container_add (GTK_CONTAINER (tree_view->priv->search_window), frame);
vbox = gtk_vbox_new (FALSE, 0);
gtk_widget_show (vbox);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 3);
/* add entry */
tree_view->priv->search_entry = gtk_entry_new ();
gtk_widget_show (tree_view->priv->search_entry);
g_signal_connect (tree_view->priv->search_entry, "populate-popup",
G_CALLBACK (gtk_tree_view_search_disable_popdown),
tree_view);
g_signal_connect (tree_view->priv->search_entry,
"activate", G_CALLBACK (gtk_tree_view_search_activate),
tree_view);
g_signal_connect (GTK_ENTRY (tree_view->priv->search_entry)->im_context,
"preedit-changed",
G_CALLBACK (gtk_tree_view_search_preedit_changed),
tree_view);
gtk_container_add (GTK_CONTAINER (vbox),
tree_view->priv->search_entry);
gtk_widget_realize (tree_view->priv->search_entry);
}
/* Pops up the interactive search entry. If keybinding is TRUE then the user
* started this by typing the start_interactive_search keybinding. Otherwise, it came from
*/
static gboolean
gtk_tree_view_real_start_interactive_search (GtkTreeView *tree_view,
GdkDevice *device,
gboolean keybinding)
{
/* We only start interactive search if we have focus or the columns
* have focus. If one of our children have focus, we don't want to
* start the search.
*/
GList *list;
gboolean found_focus = FALSE;
GtkWidgetClass *entry_parent_class;
if (!tree_view->priv->enable_search && !keybinding)
return FALSE;
if (tree_view->priv->search_custom_entry_set)
return FALSE;
if (tree_view->priv->search_window != NULL &&
gtk_widget_get_visible (tree_view->priv->search_window))
return TRUE;
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column;
column = list->data;
if (! column->visible)
continue;
if (gtk_widget_has_focus (column->button))
{
found_focus = TRUE;
break;
}
}
if (gtk_widget_has_focus (GTK_WIDGET (tree_view)))
found_focus = TRUE;
if (!found_focus)
return FALSE;
if (tree_view->priv->search_column < 0)
return FALSE;
gtk_tree_view_ensure_interactive_directory (tree_view);
if (keybinding)
gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
/* done, show it */
tree_view->priv->search_position_func (tree_view, tree_view->priv->search_window, tree_view->priv->search_position_user_data);
gtk_widget_show (tree_view->priv->search_window);
if (tree_view->priv->search_entry_changed_id == 0)
{
tree_view->priv->search_entry_changed_id =
g_signal_connect (tree_view->priv->search_entry, "changed",
G_CALLBACK (gtk_tree_view_search_init),
tree_view);
}
tree_view->priv->typeselect_flush_timeout =
gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
/* Grab focus will select all the text. We don't want that to happen, so we
* call the parent instance and bypass the selection change. This is probably
* really non-kosher. */
entry_parent_class = g_type_class_peek_parent (GTK_ENTRY_GET_CLASS (tree_view->priv->search_entry));
(entry_parent_class->grab_focus) (tree_view->priv->search_entry);
/* send focus-in event */
send_focus_change (tree_view->priv->search_entry, device, TRUE);
/* search first matching iter */
gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
return TRUE;
}
static gboolean
gtk_tree_view_start_interactive_search (GtkTreeView *tree_view)
{
return gtk_tree_view_real_start_interactive_search (tree_view,
gtk_get_current_event_device (),
TRUE);
}
/* this function returns the new width of the column being resized given
* the column and x position of the cursor; the x cursor position is passed
* in as a pointer and automagicly corrected if it's beyond min/max limits
*/
static gint
gtk_tree_view_new_column_width (GtkTreeView *tree_view,
gint i,
gint *x)
{
GtkAllocation allocation;
GtkTreeViewColumn *column;
GtkRequisition button_req;
gint width;
gboolean rtl;
/* first translate the x position from widget->window
* to clist->clist_window
*/
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
column = g_list_nth (tree_view->priv->columns, i)->data;
gtk_widget_get_allocation (column->button, &allocation);
width = rtl ? (allocation.x + allocation.width - *x) : (*x - allocation.x);
/* Clamp down the value */
if (column->min_width == -1)
{
gtk_widget_get_preferred_size (column->button, &button_req, NULL);
width = MAX (button_req.width, width);
}
else
width = MAX (column->min_width,
width);
if (column->max_width != -1)
width = MIN (width, column->max_width);
*x = rtl ? (allocation.x + allocation.width - width) : (allocation.x + width);
return width;
}
/* FIXME this adjust_allocation is a big cut-and-paste from
* GtkCList, needs to be some "official" way to do this
* factored out.
*/
typedef struct
{
GdkWindow *window;
int dx;
int dy;
} ScrollData;
/* The window to which widget->window is relative */
#define ALLOCATION_WINDOW(widget) \
(!gtk_widget_get_has_window (widget) ? \
gtk_widget_get_window (widget) : \
gdk_window_get_parent (gtk_widget_get_window (widget)))
static void
adjust_allocation_recurse (GtkWidget *widget,
gpointer data)
{
GtkAllocation allocation;
ScrollData *scroll_data = data;
/* Need to really size allocate instead of just poking
* into widget->allocation if the widget is not realized.
* FIXME someone figure out why this was.
*/
gtk_widget_get_allocation (widget, &allocation);
if (!gtk_widget_get_realized (widget))
{
if (gtk_widget_get_visible (widget))
{
GdkRectangle tmp_rectangle = allocation;
tmp_rectangle.x += scroll_data->dx;
tmp_rectangle.y += scroll_data->dy;
gtk_widget_size_allocate (widget, &tmp_rectangle);
}
}
else
{
if (ALLOCATION_WINDOW (widget) == scroll_data->window)
{
allocation.x += scroll_data->dx;
allocation.y += scroll_data->dy;
gtk_widget_set_allocation (widget, &allocation);
if (GTK_IS_CONTAINER (widget))
gtk_container_forall (GTK_CONTAINER (widget),
adjust_allocation_recurse,
data);
}
}
}
static void
adjust_allocation (GtkWidget *widget,
int dx,
int dy)
{
ScrollData scroll_data;
if (gtk_widget_get_realized (widget))
scroll_data.window = ALLOCATION_WINDOW (widget);
else
scroll_data.window = NULL;
scroll_data.dx = dx;
scroll_data.dy = dy;
adjust_allocation_recurse (widget, &scroll_data);
}
/* Callbacks */
static void
gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view)
{
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
gint dy;
gdk_window_move (tree_view->priv->bin_window,
- tree_view->priv->hadjustment->value,
TREE_VIEW_HEADER_HEIGHT (tree_view));
gdk_window_move (tree_view->priv->header_window,
- tree_view->priv->hadjustment->value,
0);
dy = tree_view->priv->dy - (int) tree_view->priv->vadjustment->value;
if (dy)
{
update_prelight (tree_view,
tree_view->priv->event_last_x,
tree_view->priv->event_last_y - dy);
if (tree_view->priv->edited_column &&
GTK_IS_WIDGET (tree_view->priv->edited_column->editable_widget))
{
GList *list;
GtkWidget *widget;
GtkTreeViewChild *child = NULL;
widget = GTK_WIDGET (tree_view->priv->edited_column->editable_widget);
adjust_allocation (widget, 0, dy);
for (list = tree_view->priv->children; list; list = list->next)
{
child = (GtkTreeViewChild *)list->data;
if (child->widget == widget)
{
child->y += dy;
break;
}
}
}
}
gdk_window_scroll (tree_view->priv->bin_window, 0, dy);
if (tree_view->priv->dy != (int) tree_view->priv->vadjustment->value)
{
/* update our dy and top_row */
tree_view->priv->dy = (int) tree_view->priv->vadjustment->value;
if (!tree_view->priv->in_top_row_to_dy)
gtk_tree_view_dy_to_top_row (tree_view);
}
gdk_window_process_updates (tree_view->priv->header_window, TRUE);
gtk_tree_view_bin_process_updates (tree_view);
}
}
/* Public methods
*/
/**
* gtk_tree_view_new:
*
* Creates a new #GtkTreeView widget.
*
* Return value: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new (void)
{
return g_object_new (GTK_TYPE_TREE_VIEW, NULL);
}
/**
* gtk_tree_view_new_with_model:
* @model: the model.
*
* Creates a new #GtkTreeView widget with the model initialized to @model.
*
* Return value: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new_with_model (GtkTreeModel *model)
{
return g_object_new (GTK_TYPE_TREE_VIEW, "model", model, NULL);
}
/* Public Accessors
*/
/**
* gtk_tree_view_get_model:
* @tree_view: a #GtkTreeView
*
* Returns the model the #GtkTreeView is based on. Returns %NULL if the
* model is unset.
*
* Return value: (transfer none): A #GtkTreeModel, or %NULL if none is currently being used.
**/
GtkTreeModel *
gtk_tree_view_get_model (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->model;
}
/**
* gtk_tree_view_set_model:
* @tree_view: A #GtkTreeNode.
* @model: (allow-none): The model.
*
* Sets the model for a #GtkTreeView. If the @tree_view already has a model
* set, it will remove it before setting the new model. If @model is %NULL,
* then it will unset the old model.
**/
void
gtk_tree_view_set_model (GtkTreeView *tree_view,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (model == tree_view->priv->model)
return;
if (tree_view->priv->scroll_to_path)
{
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
if (tree_view->priv->model)
{
GList *tmplist = tree_view->priv->columns;
gtk_tree_view_unref_and_check_selection_tree (tree_view, tree_view->priv->tree);
gtk_tree_view_stop_editing (tree_view, TRUE);
remove_expand_collapse_timeout (tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_changed,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_inserted,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_has_child_toggled,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_row_deleted,
tree_view);
g_signal_handlers_disconnect_by_func (tree_view->priv->model,
gtk_tree_view_rows_reordered,
tree_view);
for (; tmplist; tmplist = tmplist->next)
_gtk_tree_view_column_unset_model (tmplist->data,
tree_view->priv->model);
if (tree_view->priv->tree)
gtk_tree_view_free_rbtree (tree_view);
gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
tree_view->priv->drag_dest_row = NULL;
gtk_tree_row_reference_free (tree_view->priv->cursor);
tree_view->priv->cursor = NULL;
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
gtk_tree_row_reference_free (tree_view->priv->top_row);
tree_view->priv->top_row = NULL;
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
tree_view->priv->scroll_to_column = NULL;
g_object_unref (tree_view->priv->model);
tree_view->priv->search_column = -1;
tree_view->priv->fixed_height_check = 0;
tree_view->priv->fixed_height = -1;
tree_view->priv->dy = tree_view->priv->top_row_dy = 0;
tree_view->priv->last_button_x = -1;
tree_view->priv->last_button_y = -1;
}
tree_view->priv->model = model;
if (tree_view->priv->model)
{
gint i;
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeModelFlags flags;
if (tree_view->priv->search_column == -1)
{
for (i = 0; i < gtk_tree_model_get_n_columns (model); i++)
{
GType type = gtk_tree_model_get_column_type (model, i);
if (g_value_type_transformable (type, G_TYPE_STRING))
{
tree_view->priv->search_column = i;
break;
}
}
}
g_object_ref (tree_view->priv->model);
g_signal_connect (tree_view->priv->model,
"row-changed",
G_CALLBACK (gtk_tree_view_row_changed),
tree_view);
g_signal_connect (tree_view->priv->model,
"row-inserted",
G_CALLBACK (gtk_tree_view_row_inserted),
tree_view);
g_signal_connect (tree_view->priv->model,
"row-has-child-toggled",
G_CALLBACK (gtk_tree_view_row_has_child_toggled),
tree_view);
g_signal_connect (tree_view->priv->model,
"row-deleted",
G_CALLBACK (gtk_tree_view_row_deleted),
tree_view);
g_signal_connect (tree_view->priv->model,
"rows-reordered",
G_CALLBACK (gtk_tree_view_rows_reordered),
tree_view);
flags = gtk_tree_model_get_flags (tree_view->priv->model);
if ((flags & GTK_TREE_MODEL_LIST_ONLY) == GTK_TREE_MODEL_LIST_ONLY)
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
else
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
path = gtk_tree_path_new_first ();
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
{
tree_view->priv->tree = _gtk_rbtree_new ();
gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE);
}
gtk_tree_path_free (path);
/* FIXME: do I need to do this? gtk_tree_view_create_buttons (tree_view); */
install_presize_handler (tree_view);
}
g_object_notify (G_OBJECT (tree_view), "model");
if (tree_view->priv->selection)
_gtk_tree_selection_emit_changed (tree_view->priv->selection);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_get_selection:
* @tree_view: A #GtkTreeView.
*
* Gets the #GtkTreeSelection associated with @tree_view.
*
* Return value: (transfer none): A #GtkTreeSelection object.
**/
GtkTreeSelection *
gtk_tree_view_get_selection (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->selection;
}
/**
* gtk_tree_view_get_hadjustment:
* @tree_view: A #GtkTreeView
*
* Gets the #GtkAdjustment currently being used for the horizontal aspect.
*
* Return value: (transfer none): A #GtkAdjustment object, or %NULL
* if none is currently being used.
*
* Deprecated: 3.0: Use gtk_scrollable_get_hadjustment()
**/
GtkAdjustment *
gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->hadjustment;
}
/**
* gtk_tree_view_set_hadjustment:
* @tree_view: A #GtkTreeView
* @adjustment: (allow-none): The #GtkAdjustment to set, or %NULL
*
* Sets the #GtkAdjustment for the current horizontal aspect.
*
* Deprecated: 3.0: Use gtk_scrollable_set_hadjustment()
**/
void
gtk_tree_view_set_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
GtkTreeViewPrivate *priv = tree_view->priv;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (adjustment == NULL || GTK_IS_ADJUSTMENT (adjustment));
if (adjustment && priv->hadjustment == adjustment)
return;
if (priv->hadjustment != NULL)
{
g_signal_handlers_disconnect_by_func (priv->hadjustment,
gtk_tree_view_adjustment_changed,
tree_view);
g_object_unref (priv->hadjustment);
}
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0,
0.0, 0.0, 0.0);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_tree_view_adjustment_changed), tree_view);
priv->hadjustment = g_object_ref_sink (adjustment);
/* FIXME: Adjustment should probably be populated here with fresh values, but
* internal details are too complicated for me to decipher right now.
*/
gtk_tree_view_adjustment_changed (NULL, tree_view);
g_object_notify (G_OBJECT (tree_view), "hadjustment");
}
/**
* gtk_tree_view_get_vadjustment:
* @tree_view: A #GtkTreeView
*
* Gets the #GtkAdjustment currently being used for the vertical aspect.
*
* Return value: (transfer none): A #GtkAdjustment object, or %NULL
* if none is currently being used.
*
* Deprecated: 3.0: Use gtk_scrollable_get_vadjustment()
**/
GtkAdjustment *
gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->vadjustment;
}
/**
* gtk_tree_view_set_vadjustment:
* @tree_view: A #GtkTreeView
* @adjustment: (allow-none): The #GtkAdjustment to set, or %NULL
*
* Sets the #GtkAdjustment for the current vertical aspect.
*
* Deprecated: 3.0: Use gtk_scrollable_set_vadjustment()
**/
void
gtk_tree_view_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
GtkTreeViewPrivate *priv = tree_view->priv;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (adjustment == NULL || GTK_IS_ADJUSTMENT (adjustment));
if (adjustment && priv->vadjustment == adjustment)
return;
if (priv->vadjustment != NULL)
{
g_signal_handlers_disconnect_by_func (priv->vadjustment,
gtk_tree_view_adjustment_changed,
tree_view);
g_object_unref (priv->vadjustment);
}
if (adjustment == NULL)
adjustment = gtk_adjustment_new (0.0, 0.0, 0.0,
0.0, 0.0, 0.0);
g_signal_connect (adjustment, "value-changed",
G_CALLBACK (gtk_tree_view_adjustment_changed), tree_view);
priv->vadjustment = g_object_ref_sink (adjustment);
/* FIXME: Adjustment should probably be populated here with fresh values, but
* internal details are too complicated for me to decipher right now.
*/
gtk_tree_view_adjustment_changed (NULL, tree_view);
g_object_notify (G_OBJECT (tree_view), "vadjustment");
}
/* Column and header operations */
/**
* gtk_tree_view_get_headers_visible:
* @tree_view: A #GtkTreeView.
*
* Returns %TRUE if the headers on the @tree_view are visible.
*
* Return value: Whether the headers are visible or not.
**/
gboolean
gtk_tree_view_get_headers_visible (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
}
/**
* gtk_tree_view_set_headers_visible:
* @tree_view: A #GtkTreeView.
* @headers_visible: %TRUE if the headers are visible
*
* Sets the visibility state of the headers.
**/
void
gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
gboolean headers_visible)
{
gint x, y;
GList *list;
GtkTreeViewColumn *column;
GtkAllocation allocation;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
headers_visible = !! headers_visible;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE) == headers_visible)
return;
if (headers_visible)
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
else
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
if (headers_visible)
{
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
gdk_window_move_resize (tree_view->priv->bin_window,
x, y + TREE_VIEW_HEADER_HEIGHT (tree_view),
tree_view->priv->width, allocation.height - + TREE_VIEW_HEADER_HEIGHT (tree_view));
if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
gtk_tree_view_map_buttons (tree_view);
}
else
{
gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height);
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
gtk_widget_unmap (column->button);
}
gdk_window_hide (tree_view->priv->header_window);
}
}
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
tree_view->priv->vadjustment->page_size = allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
tree_view->priv->vadjustment->page_increment = (allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view)) / 2;
tree_view->priv->vadjustment->lower = 0;
tree_view->priv->vadjustment->upper = tree_view->priv->height;
gtk_adjustment_changed (tree_view->priv->vadjustment);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
g_object_notify (G_OBJECT (tree_view), "headers-visible");
}
/**
* gtk_tree_view_columns_autosize:
* @tree_view: A #GtkTreeView.
*
* Resizes all columns to their optimal width. Only works after the
* treeview has been realized.
**/
void
gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
{
gboolean dirty = FALSE;
GList *list;
GtkTreeViewColumn *column;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
continue;
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
dirty = TRUE;
}
if (dirty)
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_set_headers_clickable:
* @tree_view: A #GtkTreeView.
* @setting: %TRUE if the columns are clickable.
*
* Allow the column title buttons to be clicked.
**/
void
gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
gboolean setting)
{
GList *list;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
for (list = tree_view->priv->columns; list; list = list->next)
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
g_object_notify (G_OBJECT (tree_view), "headers-clickable");
}
/**
* gtk_tree_view_get_headers_clickable:
* @tree_view: A #GtkTreeView.
*
* Returns whether all header columns are clickable.
*
* Return value: %TRUE if all header columns are clickable, otherwise %FALSE
*
* Since: 2.10
**/
gboolean
gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view)
{
GList *list;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
for (list = tree_view->priv->columns; list; list = list->next)
if (!GTK_TREE_VIEW_COLUMN (list->data)->clickable)
return FALSE;
return TRUE;
}
/**
* gtk_tree_view_set_rules_hint
* @tree_view: a #GtkTreeView
* @setting: %TRUE if the tree requires reading across rows
*
* This function tells GTK+ that the user interface for your
* application requires users to read across tree rows and associate
* cells with one another. By default, GTK+ will then render the tree
* with alternating row colors. Do <emphasis>not</emphasis> use it
* just because you prefer the appearance of the ruled tree; that's a
* question for the theme. Some themes will draw tree rows in
* alternating colors even when rules are turned off, and users who
* prefer that appearance all the time can choose those themes. You
* should call this function only as a <emphasis>semantic</emphasis>
* hint to the theme engine that your tree makes alternating colors
* useful from a functional standpoint (since it has lots of columns,
* generally).
*
**/
void
gtk_tree_view_set_rules_hint (GtkTreeView *tree_view,
gboolean setting)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
setting = setting != FALSE;
if (tree_view->priv->has_rules != setting)
{
tree_view->priv->has_rules = setting;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
g_object_notify (G_OBJECT (tree_view), "rules-hint");
}
/**
* gtk_tree_view_get_rules_hint
* @tree_view: a #GtkTreeView
*
* Gets the setting set by gtk_tree_view_set_rules_hint().
*
* Return value: %TRUE if rules are useful for the user of this tree
**/
gboolean
gtk_tree_view_get_rules_hint (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->has_rules;
}
/* Public Column functions
*/
/**
* gtk_tree_view_append_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to add.
*
* Appends @column to the list of columns. If @tree_view has "fixed_height"
* mode enabled, then @column must have its "sizing" property set to be
* GTK_TREE_VIEW_COLUMN_FIXED.
*
* Return value: The number of columns in @tree_view after appending.
**/
gint
gtk_tree_view_append_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == NULL, -1);
return gtk_tree_view_insert_column (tree_view, column, -1);
}
/**
* gtk_tree_view_remove_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to remove.
*
* Removes @column from @tree_view.
*
* Return value: The number of columns in @tree_view after removing.
**/
gint
gtk_tree_view_remove_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == GTK_WIDGET (tree_view), -1);
if (tree_view->priv->focus_column == column)
tree_view->priv->focus_column = NULL;
if (tree_view->priv->edited_column == column)
{
gtk_tree_view_stop_editing (tree_view, TRUE);
/* no need to, but just to be sure ... */
tree_view->priv->edited_column = NULL;
}
if (tree_view->priv->expander_column == column)
tree_view->priv->expander_column = NULL;
g_signal_handlers_disconnect_by_func (column,
G_CALLBACK (column_sizing_notify),
tree_view);
_gtk_tree_view_column_unset_tree_view (column);
tree_view->priv->columns = g_list_remove (tree_view->priv->columns, column);
tree_view->priv->n_columns--;
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
GList *list;
_gtk_tree_view_column_unrealize_button (column);
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *tmp_column;
tmp_column = GTK_TREE_VIEW_COLUMN (list->data);
if (tmp_column->visible)
_gtk_tree_view_column_cell_set_dirty (tmp_column, TRUE);
}
if (tree_view->priv->n_columns == 0 &&
gtk_tree_view_get_headers_visible (tree_view))
gdk_window_hide (tree_view->priv->header_window);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
g_object_unref (column);
g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_insert_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to be inserted.
* @position: The position to insert @column in.
*
* This inserts the @column into the @tree_view at @position. If @position is
* -1, then the column is inserted at the end. If @tree_view has
* "fixed_height" mode enabled, then @column must have its "sizing" property
* set to be GTK_TREE_VIEW_COLUMN_FIXED.
*
* Return value: The number of columns in @tree_view after insertion.
**/
gint
gtk_tree_view_insert_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
gint position)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == NULL, -1);
if (tree_view->priv->fixed_height_mode)
g_return_val_if_fail (gtk_tree_view_column_get_sizing (column)
== GTK_TREE_VIEW_COLUMN_FIXED, -1);
g_object_ref_sink (column);
if (tree_view->priv->n_columns == 0 &&
gtk_widget_get_realized (GTK_WIDGET (tree_view)) &&
gtk_tree_view_get_headers_visible (tree_view))
{
gdk_window_show (tree_view->priv->header_window);
}
g_signal_connect (column, "notify::sizing",
G_CALLBACK (column_sizing_notify), tree_view);
tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
column, position);
tree_view->priv->n_columns++;
_gtk_tree_view_column_set_tree_view (column, tree_view);
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
GList *list;
_gtk_tree_view_column_realize_button (column);
for (list = tree_view->priv->columns; list; list = list->next)
{
column = GTK_TREE_VIEW_COLUMN (list->data);
if (column->visible)
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_insert_column_with_attributes:
* @tree_view: A #GtkTreeView
* @position: The position to insert the new column in.
* @title: The title to set the header to.
* @cell: The #GtkCellRenderer.
* @Varargs: A %NULL-terminated list of attributes.
*
* Creates a new #GtkTreeViewColumn and inserts it into the @tree_view at
* @position. If @position is -1, then the newly created column is inserted at
* the end. The column is initialized with the attributes given. If @tree_view
* has "fixed_height" mode enabled, then the new column will have its sizing
* property set to be GTK_TREE_VIEW_COLUMN_FIXED.
*
* Return value: The number of columns in @tree_view after insertion.
**/
gint
gtk_tree_view_insert_column_with_attributes (GtkTreeView *tree_view,
gint position,
const gchar *title,
GtkCellRenderer *cell,
...)
{
GtkTreeViewColumn *column;
gchar *attribute;
va_list args;
gint column_id;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
column = gtk_tree_view_column_new ();
if (tree_view->priv->fixed_height_mode)
gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_title (column, title);
gtk_tree_view_column_pack_start (column, cell, TRUE);
va_start (args, cell);
attribute = va_arg (args, gchar *);
while (attribute != NULL)
{
column_id = va_arg (args, gint);
gtk_tree_view_column_add_attribute (column, cell, attribute, column_id);
attribute = va_arg (args, gchar *);
}
va_end (args);
gtk_tree_view_insert_column (tree_view, column, position);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_insert_column_with_data_func:
* @tree_view: a #GtkTreeView
* @position: Position to insert, -1 for append
* @title: column title
* @cell: cell renderer for column
* @func: function to set attributes of cell renderer
* @data: data for @func
* @dnotify: destroy notifier for @data
*
* Convenience function that inserts a new column into the #GtkTreeView
* with the given cell renderer and a #GtkCellDataFunc to set cell renderer
* attributes (normally using data from the model). See also
* gtk_tree_view_column_set_cell_data_func(), gtk_tree_view_column_pack_start().
* If @tree_view has "fixed_height" mode enabled, then the new column will have its
* "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.
*
* Return value: number of columns in the tree view post-insert
**/
gint
gtk_tree_view_insert_column_with_data_func (GtkTreeView *tree_view,
gint position,
const gchar *title,
GtkCellRenderer *cell,
GtkTreeCellDataFunc func,
gpointer data,
GDestroyNotify dnotify)
{
GtkTreeViewColumn *column;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
column = gtk_tree_view_column_new ();
if (tree_view->priv->fixed_height_mode)
gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_title (column, title);
gtk_tree_view_column_pack_start (column, cell, TRUE);
gtk_tree_view_column_set_cell_data_func (column, cell, func, data, dnotify);
gtk_tree_view_insert_column (tree_view, column, position);
return tree_view->priv->n_columns;
}
/**
* gtk_tree_view_get_column:
* @tree_view: A #GtkTreeView.
* @n: The position of the column, counting from 0.
*
* Gets the #GtkTreeViewColumn at the given position in the #tree_view.
*
* Return value: (transfer none): The #GtkTreeViewColumn, or %NULL if the
* position is outside the range of columns.
**/
GtkTreeViewColumn *
gtk_tree_view_get_column (GtkTreeView *tree_view,
gint n)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (n < 0 || n >= tree_view->priv->n_columns)
return NULL;
if (tree_view->priv->columns == NULL)
return NULL;
return GTK_TREE_VIEW_COLUMN (g_list_nth (tree_view->priv->columns, n)->data);
}
/**
* gtk_tree_view_get_columns:
* @tree_view: A #GtkTreeView
*
* Returns a #GList of all the #GtkTreeViewColumn s currently in @tree_view.
* The returned list must be freed with g_list_free ().
*
* Return value: (element-type GtkTreeViewColumn) (transfer container): A list of #GtkTreeViewColumn s
**/
GList *
gtk_tree_view_get_columns (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return g_list_copy (tree_view->priv->columns);
}
/**
* gtk_tree_view_move_column_after:
* @tree_view: A #GtkTreeView
* @column: The #GtkTreeViewColumn to be moved.
* @base_column: (allow-none): The #GtkTreeViewColumn to be moved relative to, or %NULL.
*
* Moves @column to be after to @base_column. If @base_column is %NULL, then
* @column is placed in the first position.
**/
void
gtk_tree_view_move_column_after (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GtkTreeViewColumn *base_column)
{
GList *column_list_el, *base_el = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
column_list_el = g_list_find (tree_view->priv->columns, column);
g_return_if_fail (column_list_el != NULL);
if (base_column)
{
base_el = g_list_find (tree_view->priv->columns, base_column);
g_return_if_fail (base_el != NULL);
}
if (column_list_el->prev == base_el)
return;
tree_view->priv->columns = g_list_remove_link (tree_view->priv->columns, column_list_el);
if (base_el == NULL)
{
column_list_el->prev = NULL;
column_list_el->next = tree_view->priv->columns;
if (column_list_el->next)
column_list_el->next->prev = column_list_el;
tree_view->priv->columns = column_list_el;
}
else
{
column_list_el->prev = base_el;
column_list_el->next = base_el->next;
if (column_list_el->next)
column_list_el->next->prev = column_list_el;
base_el->next = column_list_el;
}
if (gtk_widget_get_realized (GTK_WIDGET (tree_view)))
{
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
gtk_tree_view_size_allocate_columns (GTK_WIDGET (tree_view), NULL);
}
g_signal_emit (tree_view, tree_view_signals[COLUMNS_CHANGED], 0);
}
/**
* gtk_tree_view_set_expander_column:
* @tree_view: A #GtkTreeView
* @column: %NULL, or the column to draw the expander arrow at.
*
* Sets the column to draw the expander arrow at. It must be in @tree_view.
* If @column is %NULL, then the expander arrow is always at the first
* visible column.
*
* If you do not want expander arrow to appear in your tree, set the
* expander column to a hidden column.
**/
void
gtk_tree_view_set_expander_column (GtkTreeView *tree_view,
GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
if (tree_view->priv->expander_column != column)
{
GList *list;
if (column)
{
/* Confirm that column is in tree_view */
for (list = tree_view->priv->columns; list; list = list->next)
if (list->data == column)
break;
g_return_if_fail (list != NULL);
}
tree_view->priv->expander_column = column;
g_object_notify (G_OBJECT (tree_view), "expander-column");
}
}
/**
* gtk_tree_view_get_expander_column:
* @tree_view: A #GtkTreeView
*
* Returns the column that is the current expander column.
* This column has the expander arrow drawn next to it.
*
* Return value: (transfer none): The expander column.
**/
GtkTreeViewColumn *
gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
{
GList *list;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
for (list = tree_view->priv->columns; list; list = list->next)
if (gtk_tree_view_is_expander_column (tree_view, GTK_TREE_VIEW_COLUMN (list->data)))
return (GtkTreeViewColumn *) list->data;
return NULL;
}
/**
* gtk_tree_view_set_column_drag_function:
* @tree_view: A #GtkTreeView.
* @func: (allow-none): A function to determine which columns are reorderable, or %NULL.
* @user_data: (allow-none): User data to be passed to @func, or %NULL
* @destroy: (allow-none): Destroy notifier for @user_data, or %NULL
*
* Sets a user function for determining where a column may be dropped when
* dragged. This function is called on every column pair in turn at the
* beginning of a column drag to determine where a drop can take place. The
* arguments passed to @func are: the @tree_view, the #GtkTreeViewColumn being
* dragged, the two #GtkTreeViewColumn s determining the drop spot, and
* @user_data. If either of the #GtkTreeViewColumn arguments for the drop spot
* are %NULL, then they indicate an edge. If @func is set to be %NULL, then
* @tree_view reverts to the default behavior of allowing all columns to be
* dropped everywhere.
**/
void
gtk_tree_view_set_column_drag_function (GtkTreeView *tree_view,
GtkTreeViewColumnDropFunc func,
gpointer user_data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->column_drop_func_data_destroy)
tree_view->priv->column_drop_func_data_destroy (tree_view->priv->column_drop_func_data);
tree_view->priv->column_drop_func = func;
tree_view->priv->column_drop_func_data = user_data;
tree_view->priv->column_drop_func_data_destroy = destroy;
}
/**
* gtk_tree_view_scroll_to_point:
* @tree_view: a #GtkTreeView
* @tree_x: X coordinate of new top-left pixel of visible area, or -1
* @tree_y: Y coordinate of new top-left pixel of visible area, or -1
*
* Scrolls the tree view such that the top-left corner of the visible
* area is @tree_x, @tree_y, where @tree_x and @tree_y are specified
* in tree coordinates. The @tree_view must be realized before
* this function is called. If it isn't, you probably want to be
* using gtk_tree_view_scroll_to_cell().
*
* If either @tree_x or @tree_y are -1, then that direction isn't scrolled.
**/
void
gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
gint tree_x,
gint tree_y)
{
GtkAdjustment *hadj;
GtkAdjustment *vadj;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view)));
hadj = tree_view->priv->hadjustment;
vadj = tree_view->priv->vadjustment;
if (tree_x != -1)
gtk_adjustment_set_value (hadj, tree_x);
if (tree_y != -1)
gtk_adjustment_set_value (vadj, tree_y);
}
/**
* gtk_tree_view_scroll_to_cell:
* @tree_view: A #GtkTreeView.
* @path: (allow-none): The path of the row to move to, or %NULL.
* @column: (allow-none): The #GtkTreeViewColumn to move horizontally to, or %NULL.
* @use_align: whether to use alignment arguments, or %FALSE.
* @row_align: The vertical alignment of the row specified by @path.
* @col_align: The horizontal alignment of the column specified by @column.
*
* Moves the alignments of @tree_view to the position specified by @column and
* @path. If @column is %NULL, then no horizontal scrolling occurs. Likewise,
* if @path is %NULL no vertical scrolling occurs. At a minimum, one of @column
* or @path need to be non-%NULL. @row_align determines where the row is
* placed, and @col_align determines where @column is placed. Both are expected
* to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means
* right/bottom alignment, 0.5 means center.
*
* If @use_align is %FALSE, then the alignment arguments are ignored, and the
* tree does the minimum amount of work to scroll the cell onto the screen.
* This means that the cell will be scrolled to the edge closest to its current
* position. If the cell is currently visible on the screen, nothing is done.
*
* This function only works if the model is set, and @path is a valid row on the
* model. If the model changes before the @tree_view is realized, the centered
* path will be modified to reflect this change.
**/
void
gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
gboolean use_align,
gfloat row_align,
gfloat col_align)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->model != NULL);
g_return_if_fail (tree_view->priv->tree != NULL);
g_return_if_fail (row_align >= 0.0 && row_align <= 1.0);
g_return_if_fail (col_align >= 0.0 && col_align <= 1.0);
g_return_if_fail (path != NULL || column != NULL);
#if 0
g_print ("gtk_tree_view_scroll_to_cell:\npath: %s\ncolumn: %s\nuse_align: %d\nrow_align: %f\ncol_align: %f\n",
gtk_tree_path_to_string (path), column?"non-null":"null", use_align, row_align, col_align);
#endif
row_align = CLAMP (row_align, 0.0, 1.0);
col_align = CLAMP (col_align, 0.0, 1.0);
/* Note: Despite the benefits that come from having one code path for the
* scrolling code, we short-circuit validate_visible_area's immplementation as
* it is much slower than just going to the point.
*/
if (!gtk_widget_get_visible (GTK_WIDGET (tree_view)) ||
!gtk_widget_get_realized (GTK_WIDGET (tree_view)) ||
_gtk_widget_get_alloc_needed (GTK_WIDGET (tree_view)) ||
GTK_RBNODE_FLAG_SET (tree_view->priv->tree->root, GTK_RBNODE_DESCENDANTS_INVALID))
{
if (tree_view->priv->scroll_to_path)
gtk_tree_row_reference_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
tree_view->priv->scroll_to_column = NULL;
if (path)
tree_view->priv->scroll_to_path = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
if (column)
tree_view->priv->scroll_to_column = column;
tree_view->priv->scroll_to_use_align = use_align;
tree_view->priv->scroll_to_row_align = row_align;
tree_view->priv->scroll_to_col_align = col_align;
install_presize_handler (tree_view);
}
else
{
GdkRectangle cell_rect;
GdkRectangle vis_rect;
gint dest_x, dest_y;
gtk_tree_view_get_background_area (tree_view, path, column, &cell_rect);
gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
cell_rect.y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, cell_rect.y);
dest_x = vis_rect.x;
dest_y = vis_rect.y;
if (column)
{
if (use_align)
{
dest_x = cell_rect.x - ((vis_rect.width - cell_rect.width) * col_align);
}
else
{
if (cell_rect.x < vis_rect.x)
dest_x = cell_rect.x;
if (cell_rect.x + cell_rect.width > vis_rect.x + vis_rect.width)
dest_x = cell_rect.x + cell_rect.width - vis_rect.width;
}
}
if (path)
{
if (use_align)
{
dest_y = cell_rect.y - ((vis_rect.height - cell_rect.height) * row_align);
dest_y = MAX (dest_y, 0);
}
else
{
if (cell_rect.y < vis_rect.y)
dest_y = cell_rect.y;
if (cell_rect.y + cell_rect.height > vis_rect.y + vis_rect.height)
dest_y = cell_rect.y + cell_rect.height - vis_rect.height;
}
}
gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
}
}
/**
* gtk_tree_view_row_activated:
* @tree_view: A #GtkTreeView
* @path: The #GtkTreePath to be activated.
* @column: The #GtkTreeViewColumn to be activated.
*
* Activates the cell determined by @path and @column.
**/
void
gtk_tree_view_row_activated (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_signal_emit (tree_view, tree_view_signals[ROW_ACTIVATED], 0, path, column);
}
static void
gtk_tree_view_expand_all_emission_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
GtkTreeView *tree_view = data;
if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT &&
node->children)
{
GtkTreePath *path;
GtkTreeIter iter;
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
gtk_tree_path_free (path);
}
if (node->children)
_gtk_rbtree_traverse (node->children,
node->children->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_emission_helper,
tree_view);
}
/**
* gtk_tree_view_expand_all:
* @tree_view: A #GtkTreeView.
*
* Recursively expands all nodes in the @tree_view.
**/
void
gtk_tree_view_expand_all (GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkRBTree *tree;
GtkRBNode *node;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->tree == NULL)
return;
path = gtk_tree_path_new_first ();
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
while (node)
{
gtk_tree_view_real_expand_row (tree_view, path, tree, node, TRUE, FALSE);
node = _gtk_rbtree_next (tree, node);
gtk_tree_path_next (path);
}
gtk_tree_path_free (path);
}
/* Timeout to animate the expander during expands and collapses */
static gboolean
expand_collapse_timeout (gpointer data)
{
return do_expand_collapse (data);
}
static void
add_expand_collapse_timeout (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gboolean expand)
{
if (tree_view->priv->expand_collapse_timeout != 0)
return;
tree_view->priv->expand_collapse_timeout =
gdk_threads_add_timeout (50, expand_collapse_timeout, tree_view);
tree_view->priv->expanded_collapsed_tree = tree;
tree_view->priv->expanded_collapsed_node = node;
if (expand)
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
else
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
}
static void
remove_expand_collapse_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->expand_collapse_timeout)
{
g_source_remove (tree_view->priv->expand_collapse_timeout);
tree_view->priv->expand_collapse_timeout = 0;
}
if (tree_view->priv->expanded_collapsed_node != NULL)
{
GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_EXPANDED);
GTK_RBNODE_UNSET_FLAG (tree_view->priv->expanded_collapsed_node, GTK_RBNODE_IS_SEMI_COLLAPSED);
tree_view->priv->expanded_collapsed_node = NULL;
}
}
static void
cancel_arrow_animation (GtkTreeView *tree_view)
{
if (tree_view->priv->expand_collapse_timeout)
{
while (do_expand_collapse (tree_view));
remove_expand_collapse_timeout (tree_view);
}
}
static gboolean
do_expand_collapse (GtkTreeView *tree_view)
{
GtkRBNode *node;
GtkRBTree *tree;
gboolean expanding;
gboolean redraw;
redraw = FALSE;
expanding = TRUE;
node = tree_view->priv->expanded_collapsed_node;
tree = tree_view->priv->expanded_collapsed_tree;
if (node->children == NULL)
expanding = FALSE;
if (expanding)
{
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
{
GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
redraw = TRUE;
}
else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
{
GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
redraw = TRUE;
}
}
else
{
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_EXPANDED))
{
GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_EXPANDED);
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
redraw = TRUE;
}
else if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SEMI_COLLAPSED))
{
GTK_RBNODE_UNSET_FLAG (node, GTK_RBNODE_IS_SEMI_COLLAPSED);
redraw = TRUE;
}
}
if (redraw)
{
gtk_tree_view_queue_draw_arrow (tree_view, tree, node);
return TRUE;
}
return FALSE;
}
/**
* gtk_tree_view_collapse_all:
* @tree_view: A #GtkTreeView.
*
* Recursively collapses all visible, expanded nodes in @tree_view.
**/
void
gtk_tree_view_collapse_all (GtkTreeView *tree_view)
{
GtkRBTree *tree;
GtkRBNode *node;
GtkTreePath *path;
gint *indices;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->tree == NULL)
return;
path = gtk_tree_path_new ();
gtk_tree_path_down (path);
indices = gtk_tree_path_get_indices (path);
tree = tree_view->priv->tree;
node = tree->root;
while (node && node->left != tree->nil)
node = node->left;
while (node)
{
if (node->children)
gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
indices[0]++;
node = _gtk_rbtree_next (tree, node);
}
gtk_tree_path_free (path);
}
/**
* gtk_tree_view_expand_to_path:
* @tree_view: A #GtkTreeView.
* @path: path to a row.
*
* Expands the row at @path. This will also expand all parent rows of
* @path as necessary.
*
* Since: 2.2
**/
void
gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
GtkTreePath *path)
{
gint i, depth;
gint *indices;
GtkTreePath *tmp;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (path != NULL);
depth = gtk_tree_path_get_depth (path);
indices = gtk_tree_path_get_indices (path);
tmp = gtk_tree_path_new ();
g_return_if_fail (tmp != NULL);
for (i = 0; i < depth; i++)
{
gtk_tree_path_append_index (tmp, indices[i]);
gtk_tree_view_expand_row (tree_view, tmp, FALSE);
}
gtk_tree_path_free (tmp);
}
/* FIXME the bool return values for expand_row and collapse_row are
* not analagous; they should be TRUE if the row had children and
* was not already in the requested state.
*/
static gboolean
gtk_tree_view_real_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree *tree,
GtkRBNode *node,
gboolean open_all,
gboolean animate)
{
GtkTreeIter iter;
GtkTreeIter temp;
gboolean expand;
if (animate)
g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
"gtk-enable-animations", &animate,
NULL);
remove_auto_expand_timeout (tree_view);
if (node->children && !open_all)
return FALSE;
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
if (! gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
return FALSE;
if (node->children && open_all)
{
gboolean retval = FALSE;
GtkTreePath *tmp_path = gtk_tree_path_copy (path);
gtk_tree_path_append_index (tmp_path, 0);
tree = node->children;
node = tree->root;
while (node->left != tree->nil)
node = node->left;
/* try to expand the children */
do
{
gboolean t;
t = gtk_tree_view_real_expand_row (tree_view, tmp_path, tree, node,
TRUE, animate);
if (t)
retval = TRUE;
gtk_tree_path_next (tmp_path);
node = _gtk_rbtree_next (tree, node);
}
while (node != NULL);
gtk_tree_path_free (tmp_path);
return retval;
}
g_signal_emit (tree_view, tree_view_signals[TEST_EXPAND_ROW], 0, &iter, path, &expand);
if (!gtk_tree_model_iter_has_child (tree_view->priv->model, &iter))
return FALSE;
if (expand)
return FALSE;
node->children = _gtk_rbtree_new ();
node->children->parent_tree = tree;
node->children->parent_node = node;
gtk_tree_model_iter_children (tree_view->priv->model, &temp, &iter);
gtk_tree_view_build_tree (tree_view,
node->children,
&temp,
gtk_tree_path_get_depth (path) + 1,
open_all);
remove_expand_collapse_timeout (tree_view);
if (animate)
add_expand_collapse_timeout (tree_view, tree, node, TRUE);
install_presize_handler (tree_view);
g_signal_emit (tree_view, tree_view_signals[ROW_EXPANDED], 0, &iter, path);
if (open_all && node->children)
{
_gtk_rbtree_traverse (node->children,
node->children->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_emission_helper,
tree_view);
}
return TRUE;
}
/**
* gtk_tree_view_expand_row:
* @tree_view: a #GtkTreeView
* @path: path to a row
* @open_all: whether to recursively expand, or just expand immediate children
*
* Opens the row so its children are visible.
*
* Return value: %TRUE if the row existed and had children
**/
gboolean
gtk_tree_view_expand_row (GtkTreeView *tree_view,
GtkTreePath *path,
gboolean open_all)
{
GtkRBTree *tree;
GtkRBNode *node;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (tree_view->priv->model != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return FALSE;
if (tree != NULL)
return gtk_tree_view_real_expand_row (tree_view, path, tree, node, open_all, FALSE);
else
return FALSE;
}
static gboolean
gtk_tree_view_real_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkRBTree *tree,
GtkRBNode *node,
gboolean animate)
{
GtkTreeIter iter;
GtkTreeIter children;
gboolean collapse;
gint x, y;
GList *list;
GdkWindow *child, *parent;
if (animate)
g_object_get (gtk_widget_get_settings (GTK_WIDGET (tree_view)),
"gtk-enable-animations", &animate,
NULL);
remove_auto_expand_timeout (tree_view);
if (node->children == NULL)
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
g_signal_emit (tree_view, tree_view_signals[TEST_COLLAPSE_ROW], 0, &iter, path, &collapse);
if (collapse)
return FALSE;
/* if the prelighted node is a child of us, we want to unprelight it. We have
* a chance to prelight the correct node below */
if (tree_view->priv->prelight_tree)
{
GtkRBTree *parent_tree;
GtkRBNode *parent_node;
parent_tree = tree_view->priv->prelight_tree->parent_tree;
parent_node = tree_view->priv->prelight_tree->parent_node;
while (parent_tree)
{
if (parent_tree == tree && parent_node == node)
{
ensure_unprelighted (tree_view);
break;
}
parent_node = parent_tree->parent_node;
parent_tree = parent_tree->parent_tree;
}
}
TREE_VIEW_INTERNAL_ASSERT (gtk_tree_model_iter_children (tree_view->priv->model, &children, &iter), FALSE);
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (column->visible == FALSE)
continue;
if (gtk_tree_view_column_get_sizing (column) == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
_gtk_tree_view_column_cell_set_dirty (column, TRUE);
}
if (tree_view->priv->destroy_count_func)
{
GtkTreePath *child_path;
gint child_count = 0;
child_path = gtk_tree_path_copy (path);
gtk_tree_path_down (child_path);
if (node->children)
_gtk_rbtree_traverse (node->children, node->children->root, G_POST_ORDER, count_children_helper, &child_count);
tree_view->priv->destroy_count_func (tree_view, child_path, child_count, tree_view->priv->destroy_count_data);
gtk_tree_path_free (child_path);
}
if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
{
GtkTreePath *cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
if (gtk_tree_path_is_ancestor (path, cursor_path))
{
gtk_tree_row_reference_free (tree_view->priv->cursor);
tree_view->priv->cursor = gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
tree_view->priv->model,
path);
}
gtk_tree_path_free (cursor_path);
}
if (gtk_tree_row_reference_valid (tree_view->priv->anchor))
{
GtkTreePath *anchor_path = gtk_tree_row_reference_get_path (tree_view->priv->anchor);
if (gtk_tree_path_is_ancestor (path, anchor_path))
{
gtk_tree_row_reference_free (tree_view->priv->anchor);
tree_view->priv->anchor = NULL;
}
gtk_tree_path_free (anchor_path);
}
/* Stop a pending double click */
tree_view->priv->last_button_x = -1;
tree_view->priv->last_button_y = -1;
remove_expand_collapse_timeout (tree_view);
if (gtk_tree_view_unref_and_check_selection_tree (tree_view, node->children))
{
_gtk_rbtree_remove (node->children);
g_signal_emit_by_name (tree_view->priv->selection, "changed");
}
else
_gtk_rbtree_remove (node->children);
if (animate)
add_expand_collapse_timeout (tree_view, tree, node, FALSE);
if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
{
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
g_signal_emit (tree_view, tree_view_signals[ROW_COLLAPSED], 0, &iter, path);
if (gtk_widget_get_mapped (GTK_WIDGET (tree_view)))
{
/* now that we've collapsed all rows, we want to try to set the prelight
* again. To do this, we fake a motion event and send it to ourselves. */
child = tree_view->priv->bin_window;
parent = gdk_window_get_parent (child);
if (gdk_window_get_pointer (parent, &x, &y, NULL) == child)
{
GdkEventMotion event;
gint child_x, child_y;
gdk_window_get_position (child, &child_x, &child_y);
event.window = tree_view->priv->bin_window;
event.x = x - child_x;
event.y = y - child_y;
/* despite the fact this isn't a real event, I'm almost positive it will
* never trigger a drag event. maybe_drag is the only function that uses
* more than just event.x and event.y. */
gtk_tree_view_motion_bin_window (GTK_WIDGET (tree_view), &event);
}
}
return TRUE;
}
/**
* gtk_tree_view_collapse_row:
* @tree_view: a #GtkTreeView
* @path: path to a row in the @tree_view
*
* Collapses a row (hides its child rows, if they exist).
*
* Return value: %TRUE if the row was collapsed.
**/
gboolean
gtk_tree_view_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkRBTree *tree;
GtkRBNode *node;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (path != NULL, FALSE);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return FALSE;
if (tree == NULL || node->children == NULL)
return FALSE;
return gtk_tree_view_real_collapse_row (tree_view, path, tree, node, FALSE);
}
static void
gtk_tree_view_map_expanded_rows_helper (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreePath *path,
GtkTreeViewMappingFunc func,
gpointer user_data)
{
GtkRBNode *node;
if (tree == NULL || tree->root == NULL)
return;
node = tree->root;
while (node && node->left != tree->nil)
node = node->left;
while (node)
{
if (node->children)
{
(* func) (tree_view, path, user_data);
gtk_tree_path_down (path);
gtk_tree_view_map_expanded_rows_helper (tree_view, node->children, path, func, user_data);
gtk_tree_path_up (path);
}
gtk_tree_path_next (path);
node = _gtk_rbtree_next (tree, node);
}
}
/**
* gtk_tree_view_map_expanded_rows:
* @tree_view: A #GtkTreeView
* @func: (scope call): A function to be called
* @data: User data to be passed to the function.
*
* Calls @func on all expanded rows.
**/
void
gtk_tree_view_map_expanded_rows (GtkTreeView *tree_view,
GtkTreeViewMappingFunc func,
gpointer user_data)
{
GtkTreePath *path;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (func != NULL);
path = gtk_tree_path_new_first ();
gtk_tree_view_map_expanded_rows_helper (tree_view,
tree_view->priv->tree,
path, func, user_data);
gtk_tree_path_free (path);
}
/**
* gtk_tree_view_row_expanded:
* @tree_view: A #GtkTreeView.
* @path: A #GtkTreePath to test expansion state.
*
* Returns %TRUE if the node pointed to by @path is expanded in @tree_view.
*
* Return value: %TRUE if #path is expanded.
**/
gboolean
gtk_tree_view_row_expanded (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkRBTree *tree;
GtkRBNode *node;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (path != NULL, FALSE);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (node == NULL)
return FALSE;
return (node->children != NULL);
}
/**
* gtk_tree_view_get_reorderable:
* @tree_view: a #GtkTreeView
*
* Retrieves whether the user can reorder the tree via drag-and-drop. See
* gtk_tree_view_set_reorderable().
*
* Return value: %TRUE if the tree can be reordered.
**/
gboolean
gtk_tree_view_get_reorderable (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->reorderable;
}
/**
* gtk_tree_view_set_reorderable:
* @tree_view: A #GtkTreeView.
* @reorderable: %TRUE, if the tree can be reordered.
*
* This function is a convenience function to allow you to reorder
* models that support the #GtkDragSourceIface and the
* #GtkDragDestIface. Both #GtkTreeStore and #GtkListStore support
* these. If @reorderable is %TRUE, then the user can reorder the
* model by dragging and dropping rows. The developer can listen to
* these changes by connecting to the model's row_inserted and
* row_deleted signals. The reordering is implemented by setting up
* the tree view as a drag source and destination. Therefore, drag and
* drop can not be used in a reorderable view for any other purpose.
*
* This function does not give you any degree of control over the order -- any
* reordering is allowed. If more control is needed, you should probably
* handle drag and drop manually.
**/
void
gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
gboolean reorderable)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
reorderable = reorderable != FALSE;
if (tree_view->priv->reorderable == reorderable)
return;
if (reorderable)
{
const GtkTargetEntry row_targets[] = {
{ "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 0 }
};
gtk_tree_view_enable_model_drag_source (tree_view,
GDK_BUTTON1_MASK,
row_targets,
G_N_ELEMENTS (row_targets),
GDK_ACTION_MOVE);
gtk_tree_view_enable_model_drag_dest (tree_view,
row_targets,
G_N_ELEMENTS (row_targets),
GDK_ACTION_MOVE);
}
else
{
gtk_tree_view_unset_rows_drag_source (tree_view);
gtk_tree_view_unset_rows_drag_dest (tree_view);
}
tree_view->priv->reorderable = reorderable;
g_object_notify (G_OBJECT (tree_view), "reorderable");
}
static void
gtk_tree_view_real_set_cursor (GtkTreeView *tree_view,
GtkTreePath *path,
gboolean clear_and_select,
gboolean clamp_node)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
{
GtkTreePath *cursor_path;
cursor_path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
gtk_tree_view_queue_draw_path (tree_view, cursor_path, NULL);
gtk_tree_path_free (cursor_path);
}
gtk_tree_row_reference_free (tree_view->priv->cursor);
tree_view->priv->cursor = NULL;
/* One cannot set the cursor on a separator. Also, if
* _gtk_tree_view_find_node returns TRUE, it ran out of tree
* before finding the tree and node belonging to path. The
* path maps to a non-existing path and we will silently bail out.
* We unset tree and node to avoid further processing.
*/
if (!row_is_separator (tree_view, NULL, path)
&& _gtk_tree_view_find_node (tree_view, path, &tree, &node) == FALSE)
{
tree_view->priv->cursor =
gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view),
tree_view->priv->model,
path);
}
else
{
tree = NULL;
node = NULL;
}
if (tree != NULL)
{
GtkRBTree *new_tree = NULL;
GtkRBNode *new_node = NULL;
if (clear_and_select && !tree_view->priv->ctrl_pressed)
{
GtkTreeSelectMode mode = 0;
if (tree_view->priv->ctrl_pressed)
mode |= GTK_TREE_SELECT_MODE_TOGGLE;
if (tree_view->priv->shift_pressed)
mode |= GTK_TREE_SELECT_MODE_EXTEND;
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
node, tree, path, mode,
FALSE);
}
/* We have to re-find tree and node here again, somebody might have
* cleared the node or the whole tree in the GtkTreeSelection::changed
* callback. If the nodes differ we bail out here.
*/
_gtk_tree_view_find_node (tree_view, path, &new_tree, &new_node);
if (tree != new_tree || node != new_node)
return;
if (clamp_node)
{
gtk_tree_view_clamp_node_visible (tree_view, tree, node);
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
}
}
g_signal_emit (tree_view, tree_view_signals[CURSOR_CHANGED], 0);
}
/**
* gtk_tree_view_get_cursor:
* @tree_view: A #GtkTreeView
* @path: (out) (allow-none): A pointer to be filled with the current cursor path, or %NULL
* @focus_column: (out) (allow-none): A pointer to be filled with the current focus column, or %NULL
*
* Fills in @path and @focus_column with the current path and focus column. If
* the cursor isn't currently set, then *@path will be %NULL. If no column
* currently has focus, then *@focus_column will be %NULL.
*
* The returned #GtkTreePath must be freed with gtk_tree_path_free() when
* you are done with it.
**/
void
gtk_tree_view_get_cursor (GtkTreeView *tree_view,
GtkTreePath **path,
GtkTreeViewColumn **focus_column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (path)
{
if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
*path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
else
*path = NULL;
}
if (focus_column)
{
*focus_column = tree_view->priv->focus_column;
}
}
/**
* gtk_tree_view_set_cursor:
* @tree_view: A #GtkTreeView
* @path: A #GtkTreePath
* @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
* @start_editing: %TRUE if the specified cell should start being edited.
*
* Sets the current keyboard focus to be at @path, and selects it. This is
* useful when you want to focus the user's attention on a particular row. If
* @focus_column is not %NULL, then focus is given to the column specified by
* it. Additionally, if @focus_column is specified, and @start_editing is
* %TRUE, then editing should be started in the specified cell.
* This function is often followed by @gtk_widget_grab_focus (@tree_view)
* in order to give keyboard focus to the widget. Please note that editing
* can only happen when the widget is realized.
*
* If @path is invalid for @model, the current cursor (if any) will be unset
* and the function will return without failing.
**/
void
gtk_tree_view_set_cursor (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *focus_column,
gboolean start_editing)
{
gtk_tree_view_set_cursor_on_cell (tree_view, path, focus_column,
NULL, start_editing);
}
/**
* gtk_tree_view_set_cursor_on_cell:
* @tree_view: A #GtkTreeView
* @path: A #GtkTreePath
* @focus_column: (allow-none): A #GtkTreeViewColumn, or %NULL
* @focus_cell: (allow-none): A #GtkCellRenderer, or %NULL
* @start_editing: %TRUE if the specified cell should start being edited.
*
* Sets the current keyboard focus to be at @path, and selects it. This is
* useful when you want to focus the user's attention on a particular row. If
* @focus_column is not %NULL, then focus is given to the column specified by
* it. If @focus_column and @focus_cell are not %NULL, and @focus_column
* contains 2 or more editable or activatable cells, then focus is given to
* the cell specified by @focus_cell. Additionally, if @focus_column is
* specified, and @start_editing is %TRUE, then editing should be started in
* the specified cell. This function is often followed by
* @gtk_widget_grab_focus (@tree_view) in order to give keyboard focus to the
* widget. Please note that editing can only happen when the widget is
* realized.
*
* If @path is invalid for @model, the current cursor (if any) will be unset
* and the function will return without failing.
*
* Since: 2.2
**/
void
gtk_tree_view_set_cursor_on_cell (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *focus_column,
GtkCellRenderer *focus_cell,
gboolean start_editing)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (path != NULL);
g_return_if_fail (focus_column == NULL || GTK_IS_TREE_VIEW_COLUMN (focus_column));
if (!tree_view->priv->model)
return;
if (focus_cell)
{
g_return_if_fail (focus_column);
g_return_if_fail (GTK_IS_CELL_RENDERER (focus_cell));
}
/* cancel the current editing, if it exists */
if (tree_view->priv->edited_column &&
tree_view->priv->edited_column->editable_widget)
gtk_tree_view_stop_editing (tree_view, TRUE);
gtk_tree_view_real_set_cursor (tree_view, path, TRUE, TRUE);
if (focus_column && focus_column->visible)
{
GList *list;
gboolean column_in_tree = FALSE;
for (list = tree_view->priv->columns; list; list = list->next)
if (list->data == focus_column)
{
column_in_tree = TRUE;
break;
}
g_return_if_fail (column_in_tree);
tree_view->priv->focus_column = focus_column;
if (focus_cell)
gtk_tree_view_column_focus_cell (focus_column, focus_cell);
if (start_editing)
gtk_tree_view_start_editing (tree_view, path);
}
}
/**
* gtk_tree_view_get_bin_window:
* @tree_view: A #GtkTreeView
*
* Returns the window that @tree_view renders to.
* This is used primarily to compare to <literal>event->window</literal>
* to confirm that the event on @tree_view is on the right window.
*
* Return value: (transfer none): A #GdkWindow, or %NULL when @tree_view
* hasn't been realized yet
**/
GdkWindow *
gtk_tree_view_get_bin_window (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->bin_window;
}
/**
* gtk_tree_view_get_path_at_pos:
* @tree_view: A #GtkTreeView.
* @x: The x position to be identified (relative to bin_window).
* @y: The y position to be identified (relative to bin_window).
* @path: (out) (allow-none): A pointer to a #GtkTreePath pointer to be filled in, or %NULL
* @column: (out) (allow-none): A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
* @cell_x: (out) (allow-none): A pointer where the X coordinate relative to the cell can be placed, or %NULL
* @cell_y: (out) (allow-none): A pointer where the Y coordinate relative to the cell can be placed, or %NULL
*
* Finds the path at the point (@x, @y), relative to bin_window coordinates
* (please see gtk_tree_view_get_bin_window()).
* That is, @x and @y are relative to an events coordinates. @x and @y must
* come from an event on the @tree_view only where <literal>event->window ==
* gtk_tree_view_get_bin_window (<!-- -->)</literal>. It is primarily for
* things like popup menus. If @path is non-%NULL, then it will be filled
* with the #GtkTreePath at that point. This path should be freed with
* gtk_tree_path_free(). If @column is non-%NULL, then it will be filled
* with the column at that point. @cell_x and @cell_y return the coordinates
* relative to the cell background (i.e. the @background_area passed to
* gtk_cell_renderer_render()). This function is only meaningful if
* @tree_view is realized. Therefore this function will always return %FALSE
* if @tree_view is not realized or does not have a model.
*
* For converting widget coordinates (eg. the ones you get from
* GtkWidget::query-tooltip), please see
* gtk_tree_view_convert_widget_to_bin_window_coords().
*
* Return value: %TRUE if a row exists at that coordinate.
**/
gboolean
gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view,
gint x,
gint y,
GtkTreePath **path,
GtkTreeViewColumn **column,
gint *cell_x,
gint *cell_y)
{
GtkRBTree *tree;
GtkRBNode *node;
gint y_offset;
g_return_val_if_fail (tree_view != NULL, FALSE);
if (path)
*path = NULL;
if (column)
*column = NULL;
if (tree_view->priv->bin_window == NULL)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
if (x > tree_view->priv->hadjustment->upper)
return FALSE;
if (x < 0 || y < 0)
return FALSE;
if (column || cell_x)
{
GtkTreeViewColumn *tmp_column;
GtkTreeViewColumn *last_column = NULL;
GList *list;
gint remaining_x = x;
gboolean found = FALSE;
gboolean rtl;
rtl = (gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL);
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
tmp_column = list->data;
if (tmp_column->visible == FALSE)
continue;
last_column = tmp_column;
if (remaining_x <= tmp_column->width)
{
found = TRUE;
if (column)
*column = tmp_column;
if (cell_x)
*cell_x = remaining_x;
break;
}
remaining_x -= tmp_column->width;
}
/* If found is FALSE and there is a last_column, then it the remainder
* space is in that area
*/
if (!found)
{
if (last_column)
{
if (column)
*column = last_column;
if (cell_x)
*cell_x = last_column->width + remaining_x;
}
else
{
return FALSE;
}
}
}
y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, y),
&tree, &node);
if (tree == NULL)
return FALSE;
if (cell_y)
*cell_y = y_offset;
if (path)
*path = _gtk_tree_view_find_path (tree_view, tree, node);
return TRUE;
}
/**
* gtk_tree_view_get_cell_area:
* @tree_view: a #GtkTreeView
* @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordinates
* @rect: rectangle to fill with cell rect
*
* Fills the bounding rectangle in bin_window coordinates for the cell at the
* row specified by @path and the column specified by @column. If @path is
* %NULL, or points to a path not currently displayed, the @y and @height fields
* of the rectangle will be filled with 0. If @column is %NULL, the @x and @width
* fields will be filled with 0. The sum of all cell rects does not cover the
* entire tree; there are extra pixels in between rows, for example. The
* returned rectangle is equivalent to the @cell_area passed to
* gtk_cell_renderer_render(). This function is only valid if @tree_view is
* realized.
**/
void
gtk_tree_view_get_cell_area (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkAllocation allocation;
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
gint vertical_separator;
gint horizontal_separator;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (rect != NULL);
g_return_if_fail (!column || column->tree_view == (GtkWidget *) tree_view);
g_return_if_fail (gtk_widget_get_realized (GTK_WIDGET (tree_view)));
gtk_widget_style_get (GTK_WIDGET (tree_view),
"vertical-separator", &vertical_separator,
"horizontal-separator", &horizontal_separator,
NULL);
rect->x = 0;
rect->y = 0;
rect->width = 0;
rect->height = 0;
if (column)
{
gtk_widget_get_allocation (column->button, &allocation);
rect->x = allocation.x + horizontal_separator/2;
rect->width = allocation.width - horizontal_separator;
}
if (path)
{
gboolean ret = _gtk_tree_view_find_node (tree_view, path, &tree, &node);
/* Get vertical coords */
if ((!ret && tree == NULL) || ret)
return;
rect->y = CELL_FIRST_PIXEL (tree_view, tree, node, vertical_separator);
rect->height = MAX (CELL_HEIGHT (node, vertical_separator), tree_view->priv->expander_size - vertical_separator);
if (column &&
gtk_tree_view_is_expander_column (tree_view, column))
{
gint depth = gtk_tree_path_get_depth (path);
gboolean rtl;
rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
if (!rtl)
rect->x += (depth - 1) * tree_view->priv->level_indentation;
rect->width -= (depth - 1) * tree_view->priv->level_indentation;
if (TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
if (!rtl)
rect->x += depth * tree_view->priv->expander_size;
rect->width -= depth * tree_view->priv->expander_size;
}
rect->width = MAX (rect->width, 0);
}
}
}
/**
* gtk_tree_view_get_background_area:
* @tree_view: a #GtkTreeView
* @path: (allow-none): a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: (allow-none): a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
* @rect: rectangle to fill with cell background rect
*
* Fills the bounding rectangle in bin_window coordinates for the cell at the
* row specified by @path and the column specified by @column. If @path is
* %NULL, or points to a node not found in the tree, the @y and @height fields of
* the rectangle will be filled with 0. If @column is %NULL, the @x and @width
* fields will be filled with 0. The returned rectangle is equivalent to the
* @background_area passed to gtk_cell_renderer_render(). These background
* areas tile to cover the entire bin window. Contrast with the @cell_area,
* returned by gtk_tree_view_get_cell_area(), which returns only the cell
* itself, excluding surrounding borders and the tree expander area.
*
**/
void
gtk_tree_view_get_background_area (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (rect != NULL);
rect->x = 0;
rect->y = 0;
rect->width = 0;
rect->height = 0;
if (path)
{
/* Get vertical coords */
if (!_gtk_tree_view_find_node (tree_view, path, &tree, &node) &&
tree == NULL)
return;
rect->y = BACKGROUND_FIRST_PIXEL (tree_view, tree, node);
rect->height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
}
if (column)
{
gint x2 = 0;
gtk_tree_view_get_background_xrange (tree_view, tree, column, &rect->x, &x2);
rect->width = x2 - rect->x;
}
}
/**
* gtk_tree_view_get_visible_rect:
* @tree_view: a #GtkTreeView
* @visible_rect: rectangle to fill
*
* Fills @visible_rect with the currently-visible region of the
* buffer, in tree coordinates. Convert to bin_window coordinates with
* gtk_tree_view_convert_tree_to_bin_window_coords().
* Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire
* scrollable area of the tree.
**/
void
gtk_tree_view_get_visible_rect (GtkTreeView *tree_view,
GdkRectangle *visible_rect)
{
GtkAllocation allocation;
GtkWidget *widget;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
widget = GTK_WIDGET (tree_view);
if (visible_rect)
{
gtk_widget_get_allocation (widget, &allocation);
visible_rect->x = tree_view->priv->hadjustment->value;
visible_rect->y = tree_view->priv->vadjustment->value;
visible_rect->width = allocation.width;
visible_rect->height = allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
}
}
/**
* gtk_tree_view_convert_widget_to_tree_coords:
* @tree_view: a #GtkTreeView
* @wx: X coordinate relative to the widget
* @wy: Y coordinate relative to the widget
* @tx: return location for tree X coordinate
* @ty: return location for tree Y coordinate
*
* Converts widget coordinates to coordinates for the
* tree (the full scrollable area of the tree).
*
* Since: 2.12
**/
void
gtk_tree_view_convert_widget_to_tree_coords (GtkTreeView *tree_view,
gint wx,
gint wy,
gint *tx,
gint *ty)
{
gint x, y;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view,
wx, wy,
&x, &y);
gtk_tree_view_convert_bin_window_to_tree_coords (tree_view,
x, y,
tx, ty);
}
/**
* gtk_tree_view_convert_tree_to_widget_coords:
* @tree_view: a #GtkTreeView
* @tx: X coordinate relative to the tree
* @ty: Y coordinate relative to the tree
* @wx: return location for widget X coordinate
* @wy: return location for widget Y coordinate
*
* Converts tree coordinates (coordinates in full scrollable area of the tree)
* to widget coordinates.
*
* Since: 2.12
**/
void
gtk_tree_view_convert_tree_to_widget_coords (GtkTreeView *tree_view,
gint tx,
gint ty,
gint *wx,
gint *wy)
{
gint x, y;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_convert_tree_to_bin_window_coords (tree_view,
tx, ty,
&x, &y);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
x, y,
wx, wy);
}
/**
* gtk_tree_view_convert_widget_to_bin_window_coords:
* @tree_view: a #GtkTreeView
* @wx: X coordinate relative to the widget
* @wy: Y coordinate relative to the widget
* @bx: return location for bin_window X coordinate
* @by: return location for bin_window Y coordinate
*
* Converts widget coordinates to coordinates for the bin_window
* (see gtk_tree_view_get_bin_window()).
*
* Since: 2.12
**/
void
gtk_tree_view_convert_widget_to_bin_window_coords (GtkTreeView *tree_view,
gint wx,
gint wy,
gint *bx,
gint *by)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (bx)
*bx = wx + tree_view->priv->hadjustment->value;
if (by)
*by = wy - TREE_VIEW_HEADER_HEIGHT (tree_view);
}
/**
* gtk_tree_view_convert_bin_window_to_widget_coords:
* @tree_view: a #GtkTreeView
* @bx: bin_window X coordinate
* @by: bin_window Y coordinate
* @wx: return location for widget X coordinate
* @wy: return location for widget Y coordinate
*
* Converts bin_window coordinates (see gtk_tree_view_get_bin_window())
* to widget relative coordinates.
*
* Since: 2.12
**/
void
gtk_tree_view_convert_bin_window_to_widget_coords (GtkTreeView *tree_view,
gint bx,
gint by,
gint *wx,
gint *wy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (wx)
*wx = bx - tree_view->priv->hadjustment->value;
if (wy)
*wy = by + TREE_VIEW_HEADER_HEIGHT (tree_view);
}
/**
* gtk_tree_view_convert_tree_to_bin_window_coords:
* @tree_view: a #GtkTreeView
* @tx: tree X coordinate
* @ty: tree Y coordinate
* @bx: return location for X coordinate relative to bin_window
* @by: return location for Y coordinate relative to bin_window
*
* Converts tree coordinates (coordinates in full scrollable area of the tree)
* to bin_window coordinates.
*
* Since: 2.12
**/
void
gtk_tree_view_convert_tree_to_bin_window_coords (GtkTreeView *tree_view,
gint tx,
gint ty,
gint *bx,
gint *by)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (bx)
*bx = tx;
if (by)
*by = ty - tree_view->priv->dy;
}
/**
* gtk_tree_view_convert_bin_window_to_tree_coords:
* @tree_view: a #GtkTreeView
* @bx: X coordinate relative to bin_window
* @by: Y coordinate relative to bin_window
* @tx: return location for tree X coordinate
* @ty: return location for tree Y coordinate
*
* Converts bin_window coordinates to coordinates for the
* tree (the full scrollable area of the tree).
*
* Since: 2.12
**/
void
gtk_tree_view_convert_bin_window_to_tree_coords (GtkTreeView *tree_view,
gint bx,
gint by,
gint *tx,
gint *ty)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tx)
*tx = bx;
if (ty)
*ty = by + tree_view->priv->dy;
}
/**
* gtk_tree_view_get_visible_range:
* @tree_view: A #GtkTreeView
* @start_path: (allow-none): Return location for start of region, or %NULL.
* @end_path: (allow-none): Return location for end of region, or %NULL.
*
* Sets @start_path and @end_path to be the first and last visible path.
* Note that there may be invisible paths in between.
*
* The paths should be freed with gtk_tree_path_free() after use.
*
* Returns: %TRUE, if valid paths were placed in @start_path and @end_path.
*
* Since: 2.8
**/
gboolean
gtk_tree_view_get_visible_range (GtkTreeView *tree_view,
GtkTreePath **start_path,
GtkTreePath **end_path)
{
GtkRBTree *tree;
GtkRBNode *node;
gboolean retval;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
if (!tree_view->priv->tree)
return FALSE;
retval = TRUE;
if (start_path)
{
_gtk_rbtree_find_offset (tree_view->priv->tree,
TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, 0),
&tree, &node);
if (node)
*start_path = _gtk_tree_view_find_path (tree_view, tree, node);
else
retval = FALSE;
}
if (end_path)
{
gint y;
if (tree_view->priv->height < tree_view->priv->vadjustment->page_size)
y = tree_view->priv->height - 1;
else
y = TREE_WINDOW_Y_TO_RBTREE_Y (tree_view, tree_view->priv->vadjustment->page_size) - 1;
_gtk_rbtree_find_offset (tree_view->priv->tree, y, &tree, &node);
if (node)
*end_path = _gtk_tree_view_find_path (tree_view, tree, node);
else
retval = FALSE;
}
return retval;
}
static void
unset_reorderable (GtkTreeView *tree_view)
{
if (tree_view->priv->reorderable)
{
tree_view->priv->reorderable = FALSE;
g_object_notify (G_OBJECT (tree_view), "reorderable");
}
}
/**
* gtk_tree_view_enable_model_drag_source:
* @tree_view: a #GtkTreeView
* @start_button_mask: Mask of allowed buttons to start drag
* @targets: the table of targets that the drag will support
* @n_targets: the number of items in @targets
* @actions: the bitmask of possible actions for a drag from this
* widget
*
* Turns @tree_view into a drag source for automatic DND. Calling this
* method sets #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_enable_model_drag_source (GtkTreeView *tree_view,
GdkModifierType start_button_mask,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_drag_source_set (GTK_WIDGET (tree_view),
0,
targets,
n_targets,
actions);
di = ensure_info (tree_view);
di->start_button_mask = start_button_mask;
di->source_actions = actions;
di->source_set = TRUE;
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_enable_model_drag_dest:
* @tree_view: a #GtkTreeView
* @targets: the table of targets that the drag will support
* @n_targets: the number of items in @targets
* @actions: the bitmask of possible actions for a drag from this
* widget
*
* Turns @tree_view into a drop destination for automatic DND. Calling
* this method sets #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_enable_model_drag_dest (GtkTreeView *tree_view,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_drag_dest_set (GTK_WIDGET (tree_view),
0,
targets,
n_targets,
actions);
di = ensure_info (tree_view);
di->dest_set = TRUE;
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_unset_rows_drag_source:
* @tree_view: a #GtkTreeView
*
* Undoes the effect of
* gtk_tree_view_enable_model_drag_source(). Calling this method sets
* #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = get_info (tree_view);
if (di)
{
if (di->source_set)
{
gtk_drag_source_unset (GTK_WIDGET (tree_view));
di->source_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_unset_rows_drag_dest:
* @tree_view: a #GtkTreeView
*
* Undoes the effect of
* gtk_tree_view_enable_model_drag_dest(). Calling this method sets
* #GtkTreeView:reorderable to %FALSE.
**/
void
gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = get_info (tree_view);
if (di)
{
if (di->dest_set)
{
gtk_drag_dest_unset (GTK_WIDGET (tree_view));
di->dest_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
unset_reorderable (tree_view);
}
/**
* gtk_tree_view_set_drag_dest_row:
* @tree_view: a #GtkTreeView
* @path: (allow-none): The path of the row to highlight, or %NULL.
* @pos: Specifies whether to drop before, after or into the row
*
* Sets the row that is highlighted for feedback.
**/
void
gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewDropPosition pos)
{
GtkTreePath *current_dest;
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
current_dest = NULL;
if (tree_view->priv->drag_dest_row)
{
current_dest = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
gtk_tree_row_reference_free (tree_view->priv->drag_dest_row);
}
/* special case a drop on an empty model */
tree_view->priv->empty_view_drop = 0;
if (pos == GTK_TREE_VIEW_DROP_BEFORE && path
&& gtk_tree_path_get_depth (path) == 1
&& gtk_tree_path_get_indices (path)[0] == 0)
{
gint n_children;
n_children = gtk_tree_model_iter_n_children (tree_view->priv->model,
NULL);
if (!n_children)
tree_view->priv->empty_view_drop = 1;
}
tree_view->priv->drag_dest_pos = pos;
if (path)
{
tree_view->priv->drag_dest_row =
gtk_tree_row_reference_new_proxy (G_OBJECT (tree_view), tree_view->priv->model, path);
gtk_tree_view_queue_draw_path (tree_view, path, NULL);
}
else
tree_view->priv->drag_dest_row = NULL;
if (current_dest)
{
GtkRBTree *tree, *new_tree;
GtkRBNode *node, *new_node;
_gtk_tree_view_find_node (tree_view, current_dest, &tree, &node);
_gtk_tree_view_queue_draw_node (tree_view, tree, node, NULL);
if (tree && node)
{
_gtk_rbtree_next_full (tree, node, &new_tree, &new_node);
if (new_tree && new_node)
_gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
_gtk_rbtree_prev_full (tree, node, &new_tree, &new_node);
if (new_tree && new_node)
_gtk_tree_view_queue_draw_node (tree_view, new_tree, new_node, NULL);
}
gtk_tree_path_free (current_dest);
}
}
/**
* gtk_tree_view_get_drag_dest_row:
* @tree_view: a #GtkTreeView
* @path: (out) (allow-none): Return location for the path of the highlighted row, or %NULL.
* @pos: (out) (allow-none): Return location for the drop position, or %NULL
*
* Gets information about the row that is highlighted for feedback.
**/
void
gtk_tree_view_get_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath **path,
GtkTreeViewDropPosition *pos)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (path)
{
if (tree_view->priv->drag_dest_row)
*path = gtk_tree_row_reference_get_path (tree_view->priv->drag_dest_row);
else
{
if (tree_view->priv->empty_view_drop)
*path = gtk_tree_path_new_from_indices (0, -1);
else
*path = NULL;
}
}
if (pos)
*pos = tree_view->priv->drag_dest_pos;
}
/**
* gtk_tree_view_get_dest_row_at_pos:
* @tree_view: a #GtkTreeView
* @drag_x: the position to determine the destination row for
* @drag_y: the position to determine the destination row for
* @path: (out) (allow-none): Return location for the path of the highlighted row, or %NULL.
* @pos: (out) (allow-none): Return location for the drop position, or %NULL
*
* Determines the destination row for a given position. @drag_x and
* @drag_y are expected to be in widget coordinates. This function is only
* meaningful if @tree_view is realized. Therefore this function will always
* return %FALSE if @tree_view is not realized or does not have a model.
*
* Return value: whether there is a row at the given position, %TRUE if this
* is indeed the case.
**/
gboolean
gtk_tree_view_get_dest_row_at_pos (GtkTreeView *tree_view,
gint drag_x,
gint drag_y,
GtkTreePath **path,
GtkTreeViewDropPosition *pos)
{
gint cell_y;
gint bin_x, bin_y;
gdouble offset_into_row;
gdouble third;
GdkRectangle cell;
GtkTreeViewColumn *column = NULL;
GtkTreePath *tmp_path = NULL;
/* Note; this function is exported to allow a custom DND
* implementation, so it can't touch TreeViewDragInfo
*/
g_return_val_if_fail (tree_view != NULL, FALSE);
g_return_val_if_fail (drag_x >= 0, FALSE);
g_return_val_if_fail (drag_y >= 0, FALSE);
if (path)
*path = NULL;
if (tree_view->priv->bin_window == NULL)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
/* If in the top third of a row, we drop before that row; if
* in the bottom third, drop after that row; if in the middle,
* and the row has children, drop into the row.
*/
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, drag_x, drag_y,
&bin_x, &bin_y);
if (!gtk_tree_view_get_path_at_pos (tree_view,
bin_x,
bin_y,
&tmp_path,
&column,
NULL,
&cell_y))
return FALSE;
gtk_tree_view_get_background_area (tree_view, tmp_path, column,
&cell);
offset_into_row = cell_y;
if (path)
*path = tmp_path;
else
gtk_tree_path_free (tmp_path);
tmp_path = NULL;
third = cell.height / 3.0;
if (pos)
{
if (offset_into_row < third)
{
*pos = GTK_TREE_VIEW_DROP_BEFORE;
}
else if (offset_into_row < (cell.height / 2.0))
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
}
else if (offset_into_row < third * 2.0)
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
}
else
{
*pos = GTK_TREE_VIEW_DROP_AFTER;
}
}
return TRUE;
}
/* KEEP IN SYNC WITH GTK_TREE_VIEW_BIN_EXPOSE */
/**
* gtk_tree_view_create_row_drag_icon:
* @tree_view: a #GtkTreeView
* @path: a #GtkTreePath in @tree_view
*
* Creates a #cairo_surface_t representation of the row at @path.
* This image is used for a drag icon.
*
* Return value: (transfer full): a newly-allocated surface of the drag icon.
**/
cairo_surface_t *
gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkTreeIter iter;
GtkRBTree *tree;
GtkRBNode *node;
GtkStyle *style;
gint cell_offset;
GList *list;
GdkRectangle background_area;
GtkWidget *widget;
gint depth;
/* start drawing inside the black outline */
gint x = 1, y = 1;
cairo_surface_t *surface;
gint bin_window_width;
gboolean is_separator = FALSE;
gboolean rtl;
cairo_t *cr;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
g_return_val_if_fail (path != NULL, NULL);
widget = GTK_WIDGET (tree_view);
if (!gtk_widget_get_realized (widget))
return NULL;
depth = gtk_tree_path_get_depth (path);
_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node);
if (tree == NULL)
return NULL;
if (!gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path))
return NULL;
style = gtk_widget_get_style (widget);
is_separator = row_is_separator (tree_view, &iter, NULL);
cell_offset = x;
background_area.y = y;
background_area.height = ROW_HEIGHT (tree_view, BACKGROUND_HEIGHT (node));
bin_window_width = gdk_window_get_width (tree_view->priv->bin_window);
surface = gdk_window_create_similar_surface (tree_view->priv->bin_window,
CAIRO_CONTENT_COLOR,
bin_window_width + 2,
background_area.height + 2);
cr = cairo_create (surface);
gdk_cairo_set_source_color (cr, &style->base [gtk_widget_get_state (widget)]);
cairo_paint (cr);
rtl = gtk_widget_get_direction (GTK_WIDGET (tree_view)) == GTK_TEXT_DIR_RTL;
for (list = (rtl ? g_list_last (tree_view->priv->columns) : g_list_first (tree_view->priv->columns));
list;
list = (rtl ? list->prev : list->next))
{
GtkTreeViewColumn *column = list->data;
GdkRectangle cell_area;
gint vertical_separator;
if (!column->visible)
continue;
gtk_tree_view_column_cell_set_cell_data (column, tree_view->priv->model, &iter,
GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT),
node->children?TRUE:FALSE);
background_area.x = cell_offset;
background_area.width = column->width;
gtk_widget_style_get (widget,
"vertical-separator", &vertical_separator,
NULL);
cell_area = background_area;
cell_area.y += vertical_separator / 2;
cell_area.height -= vertical_separator;
if (gtk_tree_view_is_expander_column (tree_view, column))
{
if (!rtl)
cell_area.x += (depth - 1) * tree_view->priv->level_indentation;
cell_area.width -= (depth - 1) * tree_view->priv->level_indentation;
if (TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
if (!rtl)
cell_area.x += depth * tree_view->priv->expander_size;
cell_area.width -= depth * tree_view->priv->expander_size;
}
}
if (gtk_tree_view_column_cell_is_visible (column))
{
if (is_separator)
gtk_paint_hline (style,
cr,
GTK_STATE_NORMAL,
widget,
NULL,
cell_area.x,
cell_area.x + cell_area.width,
cell_area.y + cell_area.height / 2);
else
_gtk_tree_view_column_cell_render (column,
cr,
&background_area,
&cell_area,
0);
}
cell_offset += column->width;
}
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr,
0.5, 0.5,
bin_window_width + 1,
background_area.height + 1);
cairo_set_line_width (cr, 1.0);
cairo_stroke (cr);
cairo_destroy (cr);
cairo_surface_set_device_offset (surface, 2, 2);
return surface;
}
/**
* gtk_tree_view_set_destroy_count_func:
* @tree_view: A #GtkTreeView
* @func: (allow-none): Function to be called when a view row is destroyed, or %NULL
* @data: (allow-none): User data to be passed to @func, or %NULL
* @destroy: (allow-none): Destroy notifier for @data, or %NULL
*
* This function should almost never be used. It is meant for private use by
* ATK for determining the number of visible children that are removed when the
* user collapses a row, or a row is deleted.
**/
void
gtk_tree_view_set_destroy_count_func (GtkTreeView *tree_view,
GtkTreeDestroyCountFunc func,
gpointer data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->destroy_count_destroy)
tree_view->priv->destroy_count_destroy (tree_view->priv->destroy_count_data);
tree_view->priv->destroy_count_func = func;
tree_view->priv->destroy_count_data = data;
tree_view->priv->destroy_count_destroy = destroy;
}
/*
* Interactive search
*/
/**
* gtk_tree_view_set_enable_search:
* @tree_view: A #GtkTreeView
* @enable_search: %TRUE, if the user can search interactively
*
* If @enable_search is set, then the user can type in text to search through
* the tree interactively (this is sometimes called "typeahead find").
*
* Note that even if this is %FALSE, the user can still initiate a search
* using the "start-interactive-search" key binding.
*/
void
gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
gboolean enable_search)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
enable_search = !!enable_search;
if (tree_view->priv->enable_search != enable_search)
{
tree_view->priv->enable_search = enable_search;
g_object_notify (G_OBJECT (tree_view), "enable-search");
}
}
/**
* gtk_tree_view_get_enable_search:
* @tree_view: A #GtkTreeView
*
* Returns whether or not the tree allows to start interactive searching
* by typing in text.
*
* Return value: whether or not to let the user search interactively
*/
gboolean
gtk_tree_view_get_enable_search (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->enable_search;
}
/**
* gtk_tree_view_get_search_column:
* @tree_view: A #GtkTreeView
*
* Gets the column searched on by the interactive search code.
*
* Return value: the column the interactive search code searches in.
*/
gint
gtk_tree_view_get_search_column (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
return (tree_view->priv->search_column);
}
/**
* gtk_tree_view_set_search_column:
* @tree_view: A #GtkTreeView
* @column: the column of the model to search in, or -1 to disable searching
*
* Sets @column as the column where the interactive search code should
* search in for the current model.
*
* If the search column is set, users can use the "start-interactive-search"
* key binding to bring up search popup. The enable-search property controls
* whether simply typing text will also start an interactive search.
*
* Note that @column refers to a column of the current model. The search
* column is reset to -1 when the model is changed.
*/
void
gtk_tree_view_set_search_column (GtkTreeView *tree_view,
gint column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (column >= -1);
if (tree_view->priv->search_column == column)
return;
tree_view->priv->search_column = column;
g_object_notify (G_OBJECT (tree_view), "search-column");
}
/**
* gtk_tree_view_get_search_equal_func:
* @tree_view: A #GtkTreeView
*
* Returns the compare function currently in use.
*
* Return value: the currently used compare function for the search code.
*/
GtkTreeViewSearchEqualFunc
gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->search_equal_func;
}
/**
* gtk_tree_view_set_search_equal_func:
* @tree_view: A #GtkTreeView
* @search_equal_func: the compare function to use during the search
* @search_user_data: (allow-none): user data to pass to @search_equal_func, or %NULL
* @search_destroy: (allow-none): Destroy notifier for @search_user_data, or %NULL
*
* Sets the compare function for the interactive search capabilities; note
* that somewhat like strcmp() returning 0 for equality
* #GtkTreeViewSearchEqualFunc returns %FALSE on matches.
**/
void
gtk_tree_view_set_search_equal_func (GtkTreeView *tree_view,
GtkTreeViewSearchEqualFunc search_equal_func,
gpointer search_user_data,
GDestroyNotify search_destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (search_equal_func != NULL);
if (tree_view->priv->search_destroy)
tree_view->priv->search_destroy (tree_view->priv->search_user_data);
tree_view->priv->search_equal_func = search_equal_func;
tree_view->priv->search_user_data = search_user_data;
tree_view->priv->search_destroy = search_destroy;
if (tree_view->priv->search_equal_func == NULL)
tree_view->priv->search_equal_func = gtk_tree_view_search_equal_func;
}
/**
* gtk_tree_view_get_search_entry:
* @tree_view: A #GtkTreeView
*
* Returns the #GtkEntry which is currently in use as interactive search
* entry for @tree_view. In case the built-in entry is being used, %NULL
* will be returned.
*
* Return value: (transfer none): the entry currently in use as search entry.
*
* Since: 2.10
*/
GtkEntry *
gtk_tree_view_get_search_entry (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->search_custom_entry_set)
return GTK_ENTRY (tree_view->priv->search_entry);
return NULL;
}
/**
* gtk_tree_view_set_search_entry:
* @tree_view: A #GtkTreeView
* @entry: (allow-none): the entry the interactive search code of @tree_view should use or %NULL
*
* Sets the entry which the interactive search code will use for this
* @tree_view. This is useful when you want to provide a search entry
* in our interface at all time at a fixed position. Passing %NULL for
* @entry will make the interactive search code use the built-in popup
* entry again.
*
* Since: 2.10
*/
void
gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
GtkEntry *entry)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (entry == NULL || GTK_IS_ENTRY (entry));
if (tree_view->priv->search_custom_entry_set)
{
if (tree_view->priv->search_entry_changed_id)
{
g_signal_handler_disconnect (tree_view->priv->search_entry,
tree_view->priv->search_entry_changed_id);
tree_view->priv->search_entry_changed_id = 0;
}
g_signal_handlers_disconnect_by_func (tree_view->priv->search_entry,
G_CALLBACK (gtk_tree_view_search_key_press_event),
tree_view);
g_object_unref (tree_view->priv->search_entry);
}
else if (tree_view->priv->search_window)
{
gtk_widget_destroy (tree_view->priv->search_window);
tree_view->priv->search_window = NULL;
}
if (entry)
{
tree_view->priv->search_entry = g_object_ref (entry);
tree_view->priv->search_custom_entry_set = TRUE;
if (tree_view->priv->search_entry_changed_id == 0)
{
tree_view->priv->search_entry_changed_id =
g_signal_connect (tree_view->priv->search_entry, "changed",
G_CALLBACK (gtk_tree_view_search_init),
tree_view);
}
g_signal_connect (tree_view->priv->search_entry, "key-press-event",
G_CALLBACK (gtk_tree_view_search_key_press_event),
tree_view);
gtk_tree_view_search_init (tree_view->priv->search_entry, tree_view);
}
else
{
tree_view->priv->search_entry = NULL;
tree_view->priv->search_custom_entry_set = FALSE;
}
}
/**
* gtk_tree_view_set_search_position_func:
* @tree_view: A #GtkTreeView
* @func: (allow-none): the function to use to position the search dialog, or %NULL
* to use the default search position function
* @data: (allow-none): user data to pass to @func, or %NULL
* @destroy: (allow-none): Destroy notifier for @data, or %NULL
*
* Sets the function to use when positioning the search dialog.
*
* Since: 2.10
**/
void
gtk_tree_view_set_search_position_func (GtkTreeView *tree_view,
GtkTreeViewSearchPositionFunc func,
gpointer user_data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->search_position_destroy)
tree_view->priv->search_position_destroy (tree_view->priv->search_position_user_data);
tree_view->priv->search_position_func = func;
tree_view->priv->search_position_user_data = user_data;
tree_view->priv->search_position_destroy = destroy;
if (tree_view->priv->search_position_func == NULL)
tree_view->priv->search_position_func = gtk_tree_view_search_position_func;
}
/**
* gtk_tree_view_get_search_position_func:
* @tree_view: A #GtkTreeView
*
* Returns the positioning function currently in use.
*
* Return value: the currently used function for positioning the search dialog.
*
* Since: 2.10
*/
GtkTreeViewSearchPositionFunc
gtk_tree_view_get_search_position_func (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->search_position_func;
}
static void
gtk_tree_view_search_dialog_hide (GtkWidget *search_dialog,
GtkTreeView *tree_view,
GdkDevice *device)
{
if (tree_view->priv->disable_popdown)
return;
if (tree_view->priv->search_entry_changed_id)
{
g_signal_handler_disconnect (tree_view->priv->search_entry,
tree_view->priv->search_entry_changed_id);
tree_view->priv->search_entry_changed_id = 0;
}
if (tree_view->priv->typeselect_flush_timeout)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout = 0;
}
if (gtk_widget_get_visible (search_dialog))
{
/* send focus-in event */
send_focus_change (GTK_WIDGET (tree_view->priv->search_entry), device, FALSE);
gtk_widget_hide (search_dialog);
gtk_entry_set_text (GTK_ENTRY (tree_view->priv->search_entry), "");
send_focus_change (GTK_WIDGET (tree_view), device, TRUE);
}
}
static void
gtk_tree_view_search_position_func (GtkTreeView *tree_view,
GtkWidget *search_dialog,
gpointer user_data)
{
gint x, y;
gint tree_x, tree_y;
gint tree_width, tree_height;
GdkWindow *tree_window = gtk_widget_get_window (GTK_WIDGET (tree_view));
GdkScreen *screen = gdk_window_get_screen (tree_window);
GtkRequisition requisition;
gint monitor_num;
GdkRectangle monitor;
monitor_num = gdk_screen_get_monitor_at_window (screen, tree_window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
gtk_widget_realize (search_dialog);
gdk_window_get_origin (tree_window, &tree_x, &tree_y);
tree_width = gdk_window_get_width (tree_window);
tree_height = gdk_window_get_height (tree_window);
gtk_widget_get_preferred_size (search_dialog, &requisition, NULL);
if (tree_x + tree_width > gdk_screen_get_width (screen))
x = gdk_screen_get_width (screen) - requisition.width;
else if (tree_x + tree_width - requisition.width < 0)
x = 0;
else
x = tree_x + tree_width - requisition.width;
if (tree_y + tree_height + requisition.height > gdk_screen_get_height (screen))
y = gdk_screen_get_height (screen) - requisition.height;
else if (tree_y + tree_height < 0) /* isn't really possible ... */
y = 0;
else
y = tree_y + tree_height;
gtk_window_move (GTK_WINDOW (search_dialog), x, y);
}
static void
gtk_tree_view_search_disable_popdown (GtkEntry *entry,
GtkMenu *menu,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
tree_view->priv->disable_popdown = 1;
g_signal_connect (menu, "hide",
G_CALLBACK (gtk_tree_view_search_enable_popdown), data);
}
/* Because we're visible but offscreen, we just set a flag in the preedit
* callback.
*/
static void
gtk_tree_view_search_preedit_changed (GtkIMContext *im_context,
GtkTreeView *tree_view)
{
tree_view->priv->imcontext_changed = 1;
if (tree_view->priv->typeselect_flush_timeout)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
}
}
static void
gtk_tree_view_search_activate (GtkEntry *entry,
GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkRBNode *node;
GtkRBTree *tree;
gtk_tree_view_search_dialog_hide (tree_view->priv->search_window,
tree_view,
gtk_get_current_event_device ());
/* If we have a row selected and it's the cursor row, we activate
* the row XXX */
if (gtk_tree_row_reference_valid (tree_view->priv->cursor))
{
path = gtk_tree_row_reference_get_path (tree_view->priv->cursor);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (node && GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED))
gtk_tree_view_row_activated (tree_view, path, tree_view->priv->focus_column);
gtk_tree_path_free (path);
}
}
static gboolean
gtk_tree_view_real_search_enable_popdown (gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
tree_view->priv->disable_popdown = 0;
return FALSE;
}
static void
gtk_tree_view_search_enable_popdown (GtkWidget *widget,
gpointer data)
{
gdk_threads_add_timeout_full (G_PRIORITY_HIGH, 200, gtk_tree_view_real_search_enable_popdown, g_object_ref (data), g_object_unref);
}
static gboolean
gtk_tree_view_search_delete_event (GtkWidget *widget,
GdkEventAny *event,
GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
gtk_tree_view_search_dialog_hide (widget, tree_view, NULL);
return TRUE;
}
static gboolean
gtk_tree_view_search_button_press_event (GtkWidget *widget,
GdkEventButton *event,
GtkTreeView *tree_view)
{
GdkDevice *keyb_device;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
keyb_device = gdk_device_get_associated_device (event->device);
gtk_tree_view_search_dialog_hide (widget, tree_view, keyb_device);
if (event->window == tree_view->priv->bin_window)
gtk_tree_view_button_press (GTK_WIDGET (tree_view), event);
return TRUE;
}
static gboolean
gtk_tree_view_search_scroll_event (GtkWidget *widget,
GdkEventScroll *event,
GtkTreeView *tree_view)
{
gboolean retval = FALSE;
if (event->direction == GDK_SCROLL_UP)
{
gtk_tree_view_search_move (widget, tree_view, TRUE);
retval = TRUE;
}
else if (event->direction == GDK_SCROLL_DOWN)
{
gtk_tree_view_search_move (widget, tree_view, FALSE);
retval = TRUE;
}
/* renew the flush timeout */
if (retval && tree_view->priv->typeselect_flush_timeout
&& !tree_view->priv->search_custom_entry_set)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
}
return retval;
}
static gboolean
gtk_tree_view_search_key_press_event (GtkWidget *widget,
GdkEventKey *event,
GtkTreeView *tree_view)
{
gboolean retval = FALSE;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
/* close window and cancel the search */
if (!tree_view->priv->search_custom_entry_set
&& (event->keyval == GDK_KEY_Escape ||
event->keyval == GDK_KEY_Tab ||
event->keyval == GDK_KEY_KP_Tab ||
event->keyval == GDK_KEY_ISO_Left_Tab))
{
gtk_tree_view_search_dialog_hide (widget, tree_view,
gdk_event_get_device ((GdkEvent *) event));
return TRUE;
}
/* select previous matching iter */
if (event->keyval == GDK_KEY_Up || event->keyval == GDK_KEY_KP_Up)
{
if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK))
&& (event->keyval == GDK_KEY_g || event->keyval == GDK_KEY_G))
{
if (!gtk_tree_view_search_move (widget, tree_view, TRUE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
/* select next matching iter */
if (event->keyval == GDK_KEY_Down || event->keyval == GDK_KEY_KP_Down)
{
if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
if (((event->state & (GTK_DEFAULT_ACCEL_MOD_MASK | GDK_SHIFT_MASK)) == GTK_DEFAULT_ACCEL_MOD_MASK)
&& (event->keyval == GDK_KEY_g || event->keyval == GDK_KEY_G))
{
if (!gtk_tree_view_search_move (widget, tree_view, FALSE))
gtk_widget_error_bell (widget);
retval = TRUE;
}
/* renew the flush timeout */
if (retval && tree_view->priv->typeselect_flush_timeout
&& !tree_view->priv->search_custom_entry_set)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
}
return retval;
}
/* this function returns FALSE if there is a search string but
* nothing was found, and TRUE otherwise.
*/
static gboolean
gtk_tree_view_search_move (GtkWidget *window,
GtkTreeView *tree_view,
gboolean up)
{
gboolean ret;
gint len;
gint count = 0;
const gchar *text;
GtkTreeIter iter;
GtkTreeModel *model;
GtkTreeSelection *selection;
text = gtk_entry_get_text (GTK_ENTRY (tree_view->priv->search_entry));
g_return_val_if_fail (text != NULL, FALSE);
len = strlen (text);
if (up && tree_view->priv->selected_iter == 1)
return strlen (text) < 1;
len = strlen (text);
if (len < 1)
return TRUE;
model = gtk_tree_view_get_model (tree_view);
selection = gtk_tree_view_get_selection (tree_view);
/* search */
gtk_tree_selection_unselect_all (selection);
if (!gtk_tree_model_get_iter_first (model, &iter))
return TRUE;
ret = gtk_tree_view_search_iter (model, selection, &iter, text,
&count, up?((tree_view->priv->selected_iter) - 1):((tree_view->priv->selected_iter + 1)));
if (ret)
{
/* found */
tree_view->priv->selected_iter += up?(-1):(1);
return TRUE;
}
else
{
/* return to old iter */
count = 0;
gtk_tree_model_get_iter_first (model, &iter);
gtk_tree_view_search_iter (model, selection,
&iter, text,
&count, tree_view->priv->selected_iter);
return FALSE;
}
}
static gboolean
gtk_tree_view_search_equal_func (GtkTreeModel *model,
gint column,
const gchar *key,
GtkTreeIter *iter,
gpointer search_data)
{
gboolean retval = TRUE;
const gchar *str;
gchar *normalized_string;
gchar *normalized_key;
gchar *case_normalized_string = NULL;
gchar *case_normalized_key = NULL;
GValue value = {0,};
GValue transformed = {0,};
gtk_tree_model_get_value (model, iter, column, &value);
g_value_init (&transformed, G_TYPE_STRING);
if (!g_value_transform (&value, &transformed))
{
g_value_unset (&value);
return TRUE;
}
g_value_unset (&value);
str = g_value_get_string (&transformed);
if (!str)
{
g_value_unset (&transformed);
return TRUE;
}
normalized_string = g_utf8_normalize (str, -1, G_NORMALIZE_ALL);
normalized_key = g_utf8_normalize (key, -1, G_NORMALIZE_ALL);
if (normalized_string && normalized_key)
{
case_normalized_string = g_utf8_casefold (normalized_string, -1);
case_normalized_key = g_utf8_casefold (normalized_key, -1);
if (strncmp (case_normalized_key, case_normalized_string, strlen (case_normalized_key)) == 0)
retval = FALSE;
}
g_value_unset (&transformed);
g_free (normalized_key);
g_free (normalized_string);
g_free (case_normalized_key);
g_free (case_normalized_string);
return retval;
}
static gboolean
gtk_tree_view_search_iter (GtkTreeModel *model,
GtkTreeSelection *selection,
GtkTreeIter *iter,
const gchar *text,
gint *count,
gint n)
{
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
GtkTreePath *path;
GtkTreeView *tree_view = gtk_tree_selection_get_tree_view (selection);
path = gtk_tree_model_get_path (model, iter);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
do
{
if (! tree_view->priv->search_equal_func (model, tree_view->priv->search_column, text, iter, tree_view->priv->search_user_data))
{
(*count)++;
if (*count == n)
{
gtk_tree_view_scroll_to_cell (tree_view, path, NULL,
TRUE, 0.5, 0.0);
gtk_tree_selection_select_iter (selection, iter);
gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
if (path)
gtk_tree_path_free (path);
return TRUE;
}
}
if (node->children)
{
gboolean has_child;
GtkTreeIter tmp;
tree = node->children;
node = tree->root;
while (node->left != tree->nil)
node = node->left;
tmp = *iter;
has_child = gtk_tree_model_iter_children (model, iter, &tmp);
gtk_tree_path_down (path);
/* sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_child, FALSE);
}
else
{
gboolean done = FALSE;
do
{
node = _gtk_rbtree_next (tree, node);
if (node)
{
gboolean has_next;
has_next = gtk_tree_model_iter_next (model, iter);
done = TRUE;
gtk_tree_path_next (path);
/* sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_next, FALSE);
}
else
{
gboolean has_parent;
GtkTreeIter tmp_iter = *iter;
node = tree->parent_node;
tree = tree->parent_tree;
if (!tree)
{
if (path)
gtk_tree_path_free (path);
/* we've run out of tree, done with this func */
return FALSE;
}
has_parent = gtk_tree_model_iter_parent (model,
iter,
&tmp_iter);
gtk_tree_path_up (path);
/* sanity check */
TREE_VIEW_INTERNAL_ASSERT (has_parent, FALSE);
}
}
while (!done);
}
}
while (1);
return FALSE;
}
static void
gtk_tree_view_search_init (GtkWidget *entry,
GtkTreeView *tree_view)
{
gint ret;
gint count = 0;
const gchar *text;
GtkTreeIter iter;
GtkTreeModel *model;
GtkTreeSelection *selection;
g_return_if_fail (GTK_IS_ENTRY (entry));
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
text = gtk_entry_get_text (GTK_ENTRY (entry));
model = gtk_tree_view_get_model (tree_view);
selection = gtk_tree_view_get_selection (tree_view);
/* search */
gtk_tree_selection_unselect_all (selection);
if (tree_view->priv->typeselect_flush_timeout
&& !tree_view->priv->search_custom_entry_set)
{
g_source_remove (tree_view->priv->typeselect_flush_timeout);
tree_view->priv->typeselect_flush_timeout =
gdk_threads_add_timeout (GTK_TREE_VIEW_SEARCH_DIALOG_TIMEOUT,
(GSourceFunc) gtk_tree_view_search_entry_flush_timeout,
tree_view);
}
if (*text == '\0')
return;
if (!gtk_tree_model_get_iter_first (model, &iter))
return;
ret = gtk_tree_view_search_iter (model, selection,
&iter, text,
&count, 1);
if (ret)
tree_view->priv->selected_iter = 1;
}
static void
gtk_tree_view_remove_widget (GtkCellEditable *cell_editable,
GtkTreeView *tree_view)
{
if (tree_view->priv->edited_column == NULL)
return;
_gtk_tree_view_column_stop_editing (tree_view->priv->edited_column);
tree_view->priv->edited_column = NULL;
if (gtk_widget_has_focus (GTK_WIDGET (cell_editable)))
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
g_signal_handlers_disconnect_by_func (cell_editable,
gtk_tree_view_remove_widget,
tree_view);
gtk_container_remove (GTK_CONTAINER (tree_view),
GTK_WIDGET (cell_editable));
/* FIXME should only redraw a single node */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static gboolean
gtk_tree_view_start_editing (GtkTreeView *tree_view,
GtkTreePath *cursor_path)
{
GtkTreeIter iter;
GdkRectangle background_area;
GdkRectangle cell_area;
GtkCellEditable *editable_widget = NULL;
gchar *path_string;
guint flags = 0; /* can be 0, as the flags are primarily for rendering */
gint retval = FALSE;
GtkRBTree *cursor_tree;
GtkRBNode *cursor_node;
g_assert (tree_view->priv->focus_column);
if (!gtk_widget_get_realized (GTK_WIDGET (tree_view)))
return FALSE;
if (_gtk_tree_view_find_node (tree_view, cursor_path, &cursor_tree, &cursor_node) ||
cursor_node == NULL)
return FALSE;
path_string = gtk_tree_path_to_string (cursor_path);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, cursor_path);
validate_row (tree_view, cursor_tree, cursor_node, &iter, cursor_path);
gtk_tree_view_column_cell_set_cell_data (tree_view->priv->focus_column,
tree_view->priv->model,
&iter,
GTK_RBNODE_FLAG_SET (cursor_node, GTK_RBNODE_IS_PARENT),
cursor_node->children?TRUE:FALSE);
gtk_tree_view_get_background_area (tree_view,
cursor_path,
tree_view->priv->focus_column,
&background_area);
gtk_tree_view_get_cell_area (tree_view,
cursor_path,
tree_view->priv->focus_column,
&cell_area);
if (_gtk_tree_view_column_cell_event (tree_view->priv->focus_column,
&editable_widget,
NULL,
path_string,
&background_area,
&cell_area,
flags))
{
retval = TRUE;
if (editable_widget != NULL)
{
gint left, right;
GdkRectangle area;
GtkCellRenderer *cell;
area = cell_area;
cell = _gtk_tree_view_column_get_edited_cell (tree_view->priv->focus_column);
_gtk_tree_view_column_get_neighbor_sizes (tree_view->priv->focus_column, cell, &left, &right);
area.x += left;
area.width -= right + left;
gtk_tree_view_real_start_editing (tree_view,
tree_view->priv->focus_column,
cursor_path,
editable_widget,
&area,
NULL,
flags);
}
}
g_free (path_string);
return retval;
}
static void
gtk_tree_view_real_start_editing (GtkTreeView *tree_view,
GtkTreeViewColumn *column,
GtkTreePath *path,
GtkCellEditable *cell_editable,
GdkRectangle *cell_area,
GdkEvent *event,
guint flags)
{
gint pre_val = tree_view->priv->vadjustment->value;
GtkRequisition requisition;
tree_view->priv->edited_column = column;
_gtk_tree_view_column_start_editing (column, GTK_CELL_EDITABLE (cell_editable));
gtk_tree_view_real_set_cursor (tree_view, path, FALSE, TRUE);
cell_area->y += pre_val - (int)tree_view->priv->vadjustment->value;
gtk_widget_get_preferred_size (GTK_WIDGET (cell_editable),
&requisition, NULL);
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
if (requisition.height < cell_area->height)
{
gint diff = cell_area->height - requisition.height;
gtk_tree_view_put (tree_view,
GTK_WIDGET (cell_editable),
cell_area->x, cell_area->y + diff/2,
cell_area->width, requisition.height);
}
else
{
gtk_tree_view_put (tree_view,
GTK_WIDGET (cell_editable),
cell_area->x, cell_area->y,
cell_area->width, cell_area->height);
}
gtk_cell_editable_start_editing (GTK_CELL_EDITABLE (cell_editable),
(GdkEvent *)event);
gtk_widget_grab_focus (GTK_WIDGET (cell_editable));
g_signal_connect (cell_editable, "remove-widget",
G_CALLBACK (gtk_tree_view_remove_widget), tree_view);
}
static void
gtk_tree_view_stop_editing (GtkTreeView *tree_view,
gboolean cancel_editing)
{
GtkTreeViewColumn *column;
GtkCellRenderer *cell;
if (tree_view->priv->edited_column == NULL)
return;
/*
* This is very evil. We need to do this, because
* gtk_cell_editable_editing_done may trigger gtk_tree_view_row_changed
* later on. If gtk_tree_view_row_changed notices
* tree_view->priv->edited_column != NULL, it'll call
* gtk_tree_view_stop_editing again. Bad things will happen then.
*
* Please read that again if you intend to modify anything here.
*/
column = tree_view->priv->edited_column;
tree_view->priv->edited_column = NULL;
cell = _gtk_tree_view_column_get_edited_cell (column);
gtk_cell_renderer_stop_editing (cell, cancel_editing);
if (!cancel_editing)
gtk_cell_editable_editing_done (column->editable_widget);
tree_view->priv->edited_column = column;
gtk_cell_editable_remove_widget (column->editable_widget);
}
/**
* gtk_tree_view_set_hover_selection:
* @tree_view: a #GtkTreeView
* @hover: %TRUE to enable hover selection mode
*
* Enables of disables the hover selection mode of @tree_view.
* Hover selection makes the selected row follow the pointer.
* Currently, this works only for the selection modes
* %GTK_SELECTION_SINGLE and %GTK_SELECTION_BROWSE.
*
* Since: 2.6
**/
void
gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
gboolean hover)
{
hover = hover != FALSE;
if (hover != tree_view->priv->hover_selection)
{
tree_view->priv->hover_selection = hover;
g_object_notify (G_OBJECT (tree_view), "hover-selection");
}
}
/**
* gtk_tree_view_get_hover_selection:
* @tree_view: a #GtkTreeView
*
* Returns whether hover selection mode is turned on for @tree_view.
*
* Return value: %TRUE if @tree_view is in hover selection mode
*
* Since: 2.6
**/
gboolean
gtk_tree_view_get_hover_selection (GtkTreeView *tree_view)
{
return tree_view->priv->hover_selection;
}
/**
* gtk_tree_view_set_hover_expand:
* @tree_view: a #GtkTreeView
* @expand: %TRUE to enable hover selection mode
*
* Enables of disables the hover expansion mode of @tree_view.
* Hover expansion makes rows expand or collapse if the pointer
* moves over them.
*
* Since: 2.6
**/
void
gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
gboolean expand)
{
expand = expand != FALSE;
if (expand != tree_view->priv->hover_expand)
{
tree_view->priv->hover_expand = expand;
g_object_notify (G_OBJECT (tree_view), "hover-expand");
}
}
/**
* gtk_tree_view_get_hover_expand:
* @tree_view: a #GtkTreeView
*
* Returns whether hover expansion mode is turned on for @tree_view.
*
* Return value: %TRUE if @tree_view is in hover expansion mode
*
* Since: 2.6
**/
gboolean
gtk_tree_view_get_hover_expand (GtkTreeView *tree_view)
{
return tree_view->priv->hover_expand;
}
/**
* gtk_tree_view_set_rubber_banding:
* @tree_view: a #GtkTreeView
* @enable: %TRUE to enable rubber banding
*
* Enables or disables rubber banding in @tree_view. If the selection mode
* is #GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select
* multiple rows by dragging the mouse.
*
* Since: 2.10
**/
void
gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
gboolean enable)
{
enable = enable != FALSE;
if (enable != tree_view->priv->rubber_banding_enable)
{
tree_view->priv->rubber_banding_enable = enable;
g_object_notify (G_OBJECT (tree_view), "rubber-banding");
}
}
/**
* gtk_tree_view_get_rubber_banding:
* @tree_view: a #GtkTreeView
*
* Returns whether rubber banding is turned on for @tree_view. If the
* selection mode is #GTK_SELECTION_MULTIPLE, rubber banding will allow the
* user to select multiple rows by dragging the mouse.
*
* Return value: %TRUE if rubber banding in @tree_view is enabled.
*
* Since: 2.10
**/
gboolean
gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view)
{
return tree_view->priv->rubber_banding_enable;
}
/**
* gtk_tree_view_is_rubber_banding_active:
* @tree_view: a #GtkTreeView
*
* Returns whether a rubber banding operation is currently being done
* in @tree_view.
*
* Return value: %TRUE if a rubber banding operation is currently being
* done in @tree_view.
*
* Since: 2.12
**/
gboolean
gtk_tree_view_is_rubber_banding_active (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
if (tree_view->priv->rubber_banding_enable
&& tree_view->priv->rubber_band_status == RUBBER_BAND_ACTIVE)
return TRUE;
return FALSE;
}
/**
* gtk_tree_view_get_row_separator_func:
* @tree_view: a #GtkTreeView
*
* Returns the current row separator function.
*
* Return value: the current row separator function.
*
* Since: 2.6
**/
GtkTreeViewRowSeparatorFunc
gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->row_separator_func;
}
/**
* gtk_tree_view_set_row_separator_func:
* @tree_view: a #GtkTreeView
* @func: (allow-none): a #GtkTreeViewRowSeparatorFunc
* @data: (allow-none): user data to pass to @func, or %NULL
* @destroy: (allow-none): destroy notifier for @data, or %NULL
*
* Sets the row separator function, which is used to determine
* whether a row should be drawn as a separator. If the row separator
* function is %NULL, no separators are drawn. This is the default value.
*
* Since: 2.6
**/
void
gtk_tree_view_set_row_separator_func (GtkTreeView *tree_view,
GtkTreeViewRowSeparatorFunc func,
gpointer data,
GDestroyNotify destroy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->row_separator_destroy)
tree_view->priv->row_separator_destroy (tree_view->priv->row_separator_data);
tree_view->priv->row_separator_func = func;
tree_view->priv->row_separator_data = data;
tree_view->priv->row_separator_destroy = destroy;
/* Have the tree recalculate heights */
_gtk_rbtree_mark_invalid (tree_view->priv->tree);
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
static void
gtk_tree_view_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
tree_view->priv->in_grab = !was_grabbed;
if (!was_grabbed)
{
tree_view->priv->pressed_button = -1;
if (tree_view->priv->rubber_band_status)
gtk_tree_view_stop_rubber_band (tree_view);
}
}
static void
gtk_tree_view_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (gtk_widget_get_realized (widget))
{
gdk_window_set_background (tree_view->priv->bin_window,
&gtk_widget_get_style (widget)->base[gtk_widget_get_state (widget)]);
}
gtk_widget_queue_draw (widget);
}
/**
* gtk_tree_view_get_grid_lines:
* @tree_view: a #GtkTreeView
*
* Returns which grid lines are enabled in @tree_view.
*
* Return value: a #GtkTreeViewGridLines value indicating which grid lines
* are enabled.
*
* Since: 2.10
*/
GtkTreeViewGridLines
gtk_tree_view_get_grid_lines (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->grid_lines;
}
/**
* gtk_tree_view_set_grid_lines:
* @tree_view: a #GtkTreeView
* @grid_lines: a #GtkTreeViewGridLines value indicating which grid lines to
* enable.
*
* Sets which grid lines to draw in @tree_view.
*
* Since: 2.10
*/
void
gtk_tree_view_set_grid_lines (GtkTreeView *tree_view,
GtkTreeViewGridLines grid_lines)
{
GtkTreeViewPrivate *priv;
GtkWidget *widget;
GtkTreeViewGridLines old_grid_lines;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
priv = tree_view->priv;
widget = GTK_WIDGET (tree_view);
old_grid_lines = priv->grid_lines;
priv->grid_lines = grid_lines;
if (gtk_widget_get_realized (widget))
{
if (grid_lines == GTK_TREE_VIEW_GRID_LINES_NONE &&
priv->grid_line_width)
{
priv->grid_line_width = 0;
}
if (grid_lines != GTK_TREE_VIEW_GRID_LINES_NONE &&
!priv->grid_line_width)
{
gint8 *dash_list;
gtk_widget_style_get (widget,
"grid-line-width", &priv->grid_line_width,
"grid-line-pattern", (gchar *)&dash_list,
NULL);
if (dash_list)
{
priv->grid_line_dashes[0] = dash_list[0];
if (dash_list[0])
priv->grid_line_dashes[1] = dash_list[1];
g_free (dash_list);
}
else
{
priv->grid_line_dashes[0] = 1;
priv->grid_line_dashes[1] = 1;
}
}
}
if (old_grid_lines != grid_lines)
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_object_notify (G_OBJECT (tree_view), "enable-grid-lines");
}
}
/**
* gtk_tree_view_get_enable_tree_lines:
* @tree_view: a #GtkTreeView.
*
* Returns whether or not tree lines are drawn in @tree_view.
*
* Return value: %TRUE if tree lines are drawn in @tree_view, %FALSE
* otherwise.
*
* Since: 2.10
*/
gboolean
gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return tree_view->priv->tree_lines_enabled;
}
/**
* gtk_tree_view_set_enable_tree_lines:
* @tree_view: a #GtkTreeView
* @enabled: %TRUE to enable tree line drawing, %FALSE otherwise.
*
* Sets whether to draw lines interconnecting the expanders in @tree_view.
* This does not have any visible effects for lists.
*
* Since: 2.10
*/
void
gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
gboolean enabled)
{
GtkTreeViewPrivate *priv;
GtkWidget *widget;
gboolean was_enabled;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
enabled = enabled != FALSE;
priv = tree_view->priv;
widget = GTK_WIDGET (tree_view);
was_enabled = priv->tree_lines_enabled;
priv->tree_lines_enabled = enabled;
if (gtk_widget_get_realized (widget))
{
if (!enabled && priv->tree_line_width)
{
priv->tree_line_width = 0;
}
if (enabled && !priv->tree_line_width)
{
gint8 *dash_list;
gtk_widget_style_get (widget,
"tree-line-width", &priv->tree_line_width,
"tree-line-pattern", (gchar *)&dash_list,
NULL);
if (dash_list)
{
priv->tree_line_dashes[0] = dash_list[0];
if (dash_list[0])
priv->tree_line_dashes[1] = dash_list[1];
g_free (dash_list);
}
else
{
priv->tree_line_dashes[0] = 1;
priv->tree_line_dashes[1] = 1;
}
}
}
if (was_enabled != enabled)
{
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
g_object_notify (G_OBJECT (tree_view), "enable-tree-lines");
}
}
/**
* gtk_tree_view_set_show_expanders:
* @tree_view: a #GtkTreeView
* @enabled: %TRUE to enable expander drawing, %FALSE otherwise.
*
* Sets whether to draw and enable expanders and indent child rows in
* @tree_view. When disabled there will be no expanders visible in trees
* and there will be no way to expand and collapse rows by default. Also
* note that hiding the expanders will disable the default indentation. You
* can set a custom indentation in this case using
* gtk_tree_view_set_level_indentation().
* This does not have any visible effects for lists.
*
* Since: 2.12
*/
void
gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
gboolean enabled)
{
gboolean was_enabled;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
enabled = enabled != FALSE;
was_enabled = GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
if (enabled)
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
else
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
if (enabled != was_enabled)
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_get_show_expanders:
* @tree_view: a #GtkTreeView.
*
* Returns whether or not expanders are drawn in @tree_view.
*
* Return value: %TRUE if expanders are drawn in @tree_view, %FALSE
* otherwise.
*
* Since: 2.12
*/
gboolean
gtk_tree_view_get_show_expanders (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
return GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_SHOW_EXPANDERS);
}
/**
* gtk_tree_view_set_level_indentation:
* @tree_view: a #GtkTreeView
* @indentation: the amount, in pixels, of extra indentation in @tree_view.
*
* Sets the amount of extra indentation for child levels to use in @tree_view
* in addition to the default indentation. The value should be specified in
* pixels, a value of 0 disables this feature and in this case only the default
* indentation will be used.
* This does not have any visible effects for lists.
*
* Since: 2.12
*/
void
gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
gint indentation)
{
tree_view->priv->level_indentation = indentation;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_get_level_indentation:
* @tree_view: a #GtkTreeView.
*
* Returns the amount, in pixels, of extra indentation for child levels
* in @tree_view.
*
* Return value: the amount of extra indentation for child levels in
* @tree_view. A return value of 0 means that this feature is disabled.
*
* Since: 2.12
*/
gint
gtk_tree_view_get_level_indentation (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->level_indentation;
}
/**
* gtk_tree_view_set_tooltip_row:
* @tree_view: a #GtkTreeView
* @tooltip: a #GtkTooltip
* @path: a #GtkTreePath
*
* Sets the tip area of @tooltip to be the area covered by the row at @path.
* See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
* See also gtk_tooltip_set_tip_area().
*
* Since: 2.12
*/
void
gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
GtkTooltip *tooltip,
GtkTreePath *path)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
gtk_tree_view_set_tooltip_cell (tree_view, tooltip, path, NULL, NULL);
}
/**
* gtk_tree_view_set_tooltip_cell:
* @tree_view: a #GtkTreeView
* @tooltip: a #GtkTooltip
* @path: (allow-none): a #GtkTreePath or %NULL
* @column: (allow-none): a #GtkTreeViewColumn or %NULL
* @cell: (allow-none): a #GtkCellRenderer or %NULL
*
* Sets the tip area of @tooltip to the area @path, @column and @cell have
* in common. For example if @path is %NULL and @column is set, the tip
* area will be set to the full area covered by @column. See also
* gtk_tooltip_set_tip_area().
*
* Note that if @path is not specified and @cell is set and part of a column
* containing the expander, the tooltip might not show and hide at the correct
* position. In such cases @path must be set to the current node under the
* mouse cursor for this function to operate correctly.
*
* See also gtk_tree_view_set_tooltip_column() for a simpler alternative.
*
* Since: 2.12
*/
void
gtk_tree_view_set_tooltip_cell (GtkTreeView *tree_view,
GtkTooltip *tooltip,
GtkTreePath *path,
GtkTreeViewColumn *column,
GtkCellRenderer *cell)
{
GtkAllocation allocation;
GdkRectangle rect;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (GTK_IS_TOOLTIP (tooltip));
g_return_if_fail (column == NULL || GTK_IS_TREE_VIEW_COLUMN (column));
g_return_if_fail (cell == NULL || GTK_IS_CELL_RENDERER (cell));
/* Determine x values. */
if (column && cell)
{
GdkRectangle tmp;
gint start, width;
/* We always pass in path here, whether it is NULL or not.
* For cells in expander columns path must be specified so that
* we can correctly account for the indentation. This also means
* that the tooltip is constrained vertically by the "Determine y
* values" code below; this is not a real problem since cells actually
* don't stretch vertically in constrast to columns.
*/
gtk_tree_view_get_cell_area (tree_view, path, column, &tmp);
gtk_tree_view_column_cell_get_position (column, cell, &start, &width);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
tmp.x + start, 0,
&rect.x, NULL);
rect.width = width;
}
else if (column)
{
GdkRectangle tmp;
gtk_tree_view_get_background_area (tree_view, NULL, column, &tmp);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
tmp.x, 0,
&rect.x, NULL);
rect.width = tmp.width;
}
else
{
gtk_widget_get_allocation (GTK_WIDGET (tree_view), &allocation);
rect.x = 0;
rect.width = allocation.width;
}
/* Determine y values. */
if (path)
{
GdkRectangle tmp;
gtk_tree_view_get_background_area (tree_view, path, NULL, &tmp);
gtk_tree_view_convert_bin_window_to_widget_coords (tree_view,
0, tmp.y,
NULL, &rect.y);
rect.height = tmp.height;
}
else
{
rect.y = 0;
rect.height = tree_view->priv->vadjustment->page_size;
}
gtk_tooltip_set_tip_area (tooltip, &rect);
}
/**
* gtk_tree_view_get_tooltip_context:
* @tree_view: a #GtkTreeView
* @x: the x coordinate (relative to widget coordinates)
* @y: the y coordinate (relative to widget coordinates)
* @keyboard_tip: whether this is a keyboard tooltip or not
* @model: (out) (allow-none): a pointer to receive a #GtkTreeModel or %NULL
* @path: (out) (allow-none): a pointer to receive a #GtkTreePath or %NULL
* @iter: (out) (allow-none): a pointer to receive a #GtkTreeIter or %NULL
*
* This function is supposed to be used in a #GtkWidget::query-tooltip
* signal handler for #GtkTreeView. The @x, @y and @keyboard_tip values
* which are received in the signal handler, should be passed to this
* function without modification.
*
* The return value indicates whether there is a tree view row at the given
* coordinates (%TRUE) or not (%FALSE) for mouse tooltips. For keyboard
* tooltips the row returned will be the cursor row. When %TRUE, then any of
* @model, @path and @iter which have been provided will be set to point to
* that row and the corresponding model. @x and @y will always be converted
* to be relative to @tree_view's bin_window if @keyboard_tooltip is %FALSE.
*
* Return value: whether or not the given tooltip context points to a row.
*
* Since: 2.12
*/
gboolean
gtk_tree_view_get_tooltip_context (GtkTreeView *tree_view,
gint *x,
gint *y,
gboolean keyboard_tip,
GtkTreeModel **model,
GtkTreePath **path,
GtkTreeIter *iter)
{
GtkTreePath *tmppath = NULL;
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), FALSE);
g_return_val_if_fail (x != NULL, FALSE);
g_return_val_if_fail (y != NULL, FALSE);
if (keyboard_tip)
{
gtk_tree_view_get_cursor (tree_view, &tmppath, NULL);
if (!tmppath)
return FALSE;
}
else
{
gtk_tree_view_convert_widget_to_bin_window_coords (tree_view, *x, *y,
x, y);
if (!gtk_tree_view_get_path_at_pos (tree_view, *x, *y,
&tmppath, NULL, NULL, NULL))
return FALSE;
}
if (model)
*model = gtk_tree_view_get_model (tree_view);
if (iter)
gtk_tree_model_get_iter (gtk_tree_view_get_model (tree_view),
iter, tmppath);
if (path)
*path = tmppath;
else
gtk_tree_path_free (tmppath);
return TRUE;
}
static gboolean
gtk_tree_view_set_tooltip_query_cb (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tip,
GtkTooltip *tooltip,
gpointer data)
{
GValue value = { 0, };
GValue transformed = { 0, };
GtkTreeIter iter;
GtkTreePath *path;
GtkTreeModel *model;
GtkTreeView *tree_view = GTK_TREE_VIEW (widget);
if (!gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget),
&x, &y,
keyboard_tip,
&model, &path, &iter))
return FALSE;
gtk_tree_model_get_value (model, &iter,
tree_view->priv->tooltip_column, &value);
g_value_init (&transformed, G_TYPE_STRING);
if (!g_value_transform (&value, &transformed))
{
g_value_unset (&value);
gtk_tree_path_free (path);
return FALSE;
}
g_value_unset (&value);
if (!g_value_get_string (&transformed))
{
g_value_unset (&transformed);
gtk_tree_path_free (path);
return FALSE;
}
gtk_tooltip_set_markup (tooltip, g_value_get_string (&transformed));
gtk_tree_view_set_tooltip_row (tree_view, tooltip, path);
gtk_tree_path_free (path);
g_value_unset (&transformed);
return TRUE;
}
/**
* gtk_tree_view_set_tooltip_column:
* @tree_view: a #GtkTreeView
* @column: an integer, which is a valid column number for @tree_view's model
*
* If you only plan to have simple (text-only) tooltips on full rows, you
* can use this function to have #GtkTreeView handle these automatically
* for you. @column should be set to the column in @tree_view's model
* containing the tooltip texts, or -1 to disable this feature.
*
* When enabled, #GtkWidget::has-tooltip will be set to %TRUE and
* @tree_view will connect a #GtkWidget::query-tooltip signal handler.
*
* Note that the signal handler sets the text with gtk_tooltip_set_markup(),
* so &amp;, &lt;, etc have to be escaped in the text.
*
* Since: 2.12
*/
void
gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
gint column)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (column == tree_view->priv->tooltip_column)
return;
if (column == -1)
{
g_signal_handlers_disconnect_by_func (tree_view,
gtk_tree_view_set_tooltip_query_cb,
NULL);
gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), FALSE);
}
else
{
if (tree_view->priv->tooltip_column == -1)
{
g_signal_connect (tree_view, "query-tooltip",
G_CALLBACK (gtk_tree_view_set_tooltip_query_cb), NULL);
gtk_widget_set_has_tooltip (GTK_WIDGET (tree_view), TRUE);
}
}
tree_view->priv->tooltip_column = column;
g_object_notify (G_OBJECT (tree_view), "tooltip-column");
}
/**
* gtk_tree_view_get_tooltip_column:
* @tree_view: a #GtkTreeView
*
* Returns the column of @tree_view's model which is being used for
* displaying tooltips on @tree_view's rows.
*
* Return value: the index of the tooltip column that is currently being
* used, or -1 if this is disabled.
*
* Since: 2.12
*/
gint
gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), 0);
return tree_view->priv->tooltip_column;
}
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