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gtk2/gtk/gtktreeview.c
Jonathan Blandford 5f25ae3873 Make fail when not realized. (gtk_tree_view_scroll_to_cell): Make work 
Sun Jan 21 09:58:00 2001  Jonathan Blandford  <jrb@redhat.com>

	* gtk/gtktreeview.c (gtk_tree_view_scroll_to_point): Make fail
	when not realized.
	(gtk_tree_view_scroll_to_cell): Make work when not realized.
	(gtk_tree_view_realize): add scroll_to support
	(gtk_tree_view_finalize): add a finalize method.  Populate.
	(gtk_tree_view_insert_column): ref and sink the column.
	(gtk_tree_view_append_column): ref and sink the column.
	(gtk_tree_view_queue_draw_node): New function to handle redrawing
	individual nodes.  Should make the code much more efficient, if
	actually used.

gtk_tree_view_queue_draw_node isn't actually used yet, but it should start
making Owen less grumpy.
2001-01-21 18:45:20 +00:00

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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 "gtktreeview.h"
#include "gtkrbtree.h"
#include "gtktreeprivate.h"
#include "gtkcellrenderer.h"
#include "gtksignal.h"
#include "gtkmain.h"
#include "gtkbutton.h"
#include "gtkalignment.h"
#include "gtklabel.h"
#include <gdk/gdkkeysyms.h>
/* the width of the column resize windows */
#define TREE_VIEW_DRAG_WIDTH 6
#define TREE_VIEW_EXPANDER_WIDTH 14
#define TREE_VIEW_EXPANDER_HEIGHT 14
#define TREE_VIEW_VERTICAL_SEPARATOR 2
#define TREE_VIEW_HORIZONTAL_SEPARATOR 0
typedef struct _GtkTreeViewChild GtkTreeViewChild;
struct _GtkTreeViewChild
{
GtkWidget *widget;
gint x;
gint y;
};
static void gtk_tree_view_init (GtkTreeView *tree_view);
static void gtk_tree_view_class_init (GtkTreeViewClass *klass);
/* object signals */
static void gtk_tree_view_finalize (GObject *object);
/* widget signals */
static void gtk_tree_view_setup_model (GtkTreeView *tree_view);
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_expose (GtkWidget *widget,
GdkEventExpose *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 void gtk_tree_view_draw_focus (GtkWidget *widget);
static gint gtk_tree_view_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_tree_view_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static gint gtk_tree_view_focus (GtkContainer *container,
GtkDirectionType direction);
/* 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_adjustments (GtkTreeView *tree_view,
GtkAdjustment *hadj,
GtkAdjustment *vadj);
static void gtk_tree_view_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_child_toggled (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data);
static void gtk_tree_view_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data);
/* Internal functions */
static void gtk_tree_view_queue_draw_node (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
GdkRectangle *clip_rect);
static void gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gint x,
gint y);
static void gtk_tree_view_get_arrow_range (GtkTreeView *tree_view,
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 gint gtk_tree_view_insert_iter_height (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth);
static void gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse,
gboolean calc_bounds);
static void gtk_tree_view_calc_size (GtkTreeView *priv,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth);
static gboolean gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
GtkTreeIter *iter,
gint depth,
gint *height);
static void gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth);
static void gtk_tree_view_check_dirty (GtkTreeView *tree_view);
static void gtk_tree_view_create_button (GtkTreeView *tree_view,
gint i);
static void gtk_tree_view_create_buttons (GtkTreeView *tree_view);
static void gtk_tree_view_button_clicked (GtkWidget *widget,
gpointer data);
static void gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node);
static gboolean gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view,
GdkEventMotion *event);
static GtkContainerClass *parent_class = NULL;
/* Class Functions */
GtkType
gtk_tree_view_get_type (void)
{
static GtkType tree_view_type = 0;
if (!tree_view_type)
{
static const GTypeInfo tree_view_info =
{
sizeof (GtkTreeViewClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_tree_view_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkTreeView),
0, /* n_preallocs */
(GInstanceInitFunc) gtk_tree_view_init
};
tree_view_type = g_type_register_static (GTK_TYPE_CONTAINER, "GtkTreeView", &tree_view_info, 0);
}
return tree_view_type;
}
static void
gtk_tree_view_class_init (GtkTreeViewClass *class)
{
GObjectClass *o_class;
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
o_class = (GObjectClass *) class;
object_class = (GtkObjectClass *) class;
widget_class = (GtkWidgetClass *) class;
container_class = (GtkContainerClass *) class;
parent_class = g_type_class_peek_parent (class);
o_class->finalize = gtk_tree_view_finalize;
widget_class->realize = gtk_tree_view_realize;
widget_class->unrealize = gtk_tree_view_unrealize;
widget_class->map = gtk_tree_view_map;
widget_class->size_request = gtk_tree_view_size_request;
widget_class->size_allocate = gtk_tree_view_size_allocate;
widget_class->expose_event = gtk_tree_view_expose;
widget_class->motion_notify_event = gtk_tree_view_motion;
widget_class->enter_notify_event = gtk_tree_view_enter_notify;
widget_class->leave_notify_event = gtk_tree_view_leave_notify;
widget_class->button_press_event = gtk_tree_view_button_press;
widget_class->button_release_event = gtk_tree_view_button_release;
widget_class->draw_focus = gtk_tree_view_draw_focus;
widget_class->focus_in_event = gtk_tree_view_focus_in;
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;
container_class->forall = gtk_tree_view_forall;
container_class->remove = gtk_tree_view_remove;
container_class->focus = gtk_tree_view_focus;
class->set_scroll_adjustments = gtk_tree_view_set_adjustments;
widget_class->set_scroll_adjustments_signal =
gtk_signal_new ("set_scroll_adjustments",
GTK_RUN_LAST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkTreeViewClass, set_scroll_adjustments),
gtk_marshal_VOID__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT);
}
static void
gtk_tree_view_init (GtkTreeView *tree_view)
{
tree_view->priv = g_new0 (GtkTreeViewPrivate, 1);
GTK_WIDGET_SET_FLAGS (tree_view, GTK_CAN_FOCUS);
tree_view->priv->flags = GTK_TREE_VIEW_IS_LIST | GTK_TREE_VIEW_SHOW_EXPANDERS | GTK_TREE_VIEW_DRAW_KEYFOCUS | GTK_TREE_VIEW_HEADERS_VISIBLE;
tree_view->priv->tab_offset = TREE_VIEW_EXPANDER_WIDTH;
tree_view->priv->n_columns = 0;
tree_view->priv->columns = NULL;
tree_view->priv->button_pressed_node = NULL;
tree_view->priv->button_pressed_tree = NULL;
tree_view->priv->prelight_node = NULL;
tree_view->priv->header_height = 1;
tree_view->priv->x_drag = 0;
tree_view->priv->drag_pos = -1;
tree_view->priv->selection = NULL;
tree_view->priv->anchor = NULL;
tree_view->priv->cursor = NULL;
tree_view->priv->pressed_button = -1;
tree_view->priv->press_start_x = -1;
tree_view->priv->press_start_y = -1;
gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
_gtk_tree_view_set_size (tree_view, 0, 0);
}
/* Object methods
*/
static void
gtk_tree_view_finalize (GObject *object)
{
GtkTreeView *tree_view = (GtkTreeView *) object;
if (tree_view->priv->tree)
_gtk_rbtree_free (tree_view->priv->tree);
if (tree_view->priv->scroll_to_path != NULL)
gtk_tree_path_free (tree_view->priv->scroll_to_path);
if (tree_view->priv->drag_dest_row)
gtk_tree_path_free (tree_view->priv->drag_dest_row);
g_free (tree_view->priv);
if (G_OBJECT_CLASS (parent_class)->finalize)
(* G_OBJECT_CLASS (parent_class)->finalize) (object);
}
/* Widget methods
*/
static void
gtk_tree_view_realize_buttons (GtkTreeView *tree_view)
{
GList *list;
GtkTreeViewColumn *column;
GdkWindowAttr attr;
guint attributes_mask;
g_return_if_fail (GTK_WIDGET_REALIZED (tree_view));
g_return_if_fail (tree_view->priv->header_window != NULL);
attr.window_type = GDK_WINDOW_CHILD;
attr.wclass = GDK_INPUT_ONLY;
attr.visual = gtk_widget_get_visual (GTK_WIDGET (tree_view));
attr.colormap = gtk_widget_get_colormap (GTK_WIDGET (tree_view));
attr.event_mask = gtk_widget_get_events (GTK_WIDGET (tree_view));
attr.event_mask = (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK |
GDK_POINTER_MOTION_HINT_MASK |
GDK_KEY_PRESS_MASK);
attributes_mask = GDK_WA_CURSOR | GDK_WA_X | GDK_WA_Y;
attr.cursor = gdk_cursor_new (GDK_SB_H_DOUBLE_ARROW);
tree_view->priv->cursor_drag = attr.cursor;
attr.y = 0;
attr.width = TREE_VIEW_DRAG_WIDTH;
attr.height = tree_view->priv->header_height;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->button)
{
if (column->visible == FALSE)
continue;
if (column->window != NULL)
continue;
gtk_widget_set_parent_window (column->button,
tree_view->priv->header_window);
attr.x = (column->button->allocation.x + column->button->allocation.width) - 3;
column->window = gdk_window_new (tree_view->priv->header_window,
&attr, attributes_mask);
gdk_window_set_user_data (column->window, tree_view);
}
}
}
static void
gtk_tree_view_realize (GtkWidget *widget)
{
GList *tmp_list;
GtkTreeView *tree_view;
GdkGCValues values;
GdkWindowAttr attributes;
gint attributes_mask;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
if (!GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP) &&
tree_view->priv->model)
gtk_tree_view_setup_model (tree_view);
gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
/* Make the main, clipping window */
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
attributes.width = widget->allocation.width;
attributes.height = widget->allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual (widget);
attributes.colormap = gtk_widget_get_colormap (widget);
attributes.event_mask = GDK_VISIBILITY_NOTIFY_MASK;
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes, attributes_mask);
gdk_window_set_user_data (widget->window, widget);
/* Make the window for the tree */
attributes.x = 0;
attributes.y = 0;
attributes.width = tree_view->priv->width;
attributes.height = tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view);
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 (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->bin_window, widget);
/* Make the column header window */
attributes.x = 0;
attributes.y = 0;
attributes.width = MAX (tree_view->priv->width, widget->allocation.width);
attributes.height = tree_view->priv->header_height;
attributes.event_mask = (GDK_EXPOSURE_MASK |
GDK_SCROLL_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 (widget->window,
&attributes, attributes_mask);
gdk_window_set_user_data (tree_view->priv->header_window, widget);
values.foreground = (widget->style->white.pixel==0 ?
widget->style->black:widget->style->white);
values.function = GDK_XOR;
values.subwindow_mode = GDK_INCLUDE_INFERIORS;
tree_view->priv->xor_gc = gdk_gc_new_with_values (widget->window,
&values,
GDK_GC_FOREGROUND |
GDK_GC_FUNCTION |
GDK_GC_SUBWINDOW);
/* Add them all up. */
widget->style = gtk_style_attach (widget->style, widget->window);
gdk_window_set_background (widget->window, &widget->style->base[widget->state]);
gdk_window_set_background (tree_view->priv->bin_window, &widget->style->base[widget->state]);
gtk_style_set_background (widget->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);
}
gtk_tree_view_realize_buttons (GTK_TREE_VIEW (widget));
_gtk_tree_view_set_size (GTK_TREE_VIEW (widget), -1, -1);
if (tree_view->priv->scroll_to_path != NULL ||
tree_view->priv->scroll_to_column != NULL)
{
gtk_tree_view_scroll_to_cell (tree_view,
tree_view->priv->scroll_to_path,
tree_view->priv->scroll_to_column,
tree_view->priv->scroll_to_row_align,
tree_view->priv->scroll_to_col_align);
if (tree_view->priv->scroll_to_path)
{
gtk_tree_path_free (tree_view->priv->scroll_to_path);
tree_view->priv->scroll_to_path = NULL;
}
tree_view->priv->scroll_to_column = NULL;
}
}
static void
gtk_tree_view_unrealize (GtkWidget *widget)
{
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->scroll_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->scroll_timeout);
tree_view->priv->scroll_timeout = 0;
}
if (tree_view->priv->open_dest_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->open_dest_timeout);
tree_view->priv->open_dest_timeout = 0;
}
/* FIXME where do we clear column->window for each column? */
gdk_window_set_user_data (tree_view->priv->bin_window, NULL);
gdk_window_destroy (tree_view->priv->bin_window);
tree_view->priv->bin_window = NULL;
gdk_window_set_user_data (tree_view->priv->header_window, NULL);
gdk_window_destroy (tree_view->priv->header_window);
tree_view->priv->header_window = NULL;
gdk_cursor_destroy (tree_view->priv->cursor_drag);
gdk_gc_destroy (tree_view->priv->xor_gc);
/* GtkWidget::unrealize destroys children and widget->window */
if (GTK_WIDGET_CLASS (parent_class)->unrealize)
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
}
static void
gtk_tree_view_map_buttons (GtkTreeView *tree_view)
{
GList *list;
g_return_if_fail (GTK_WIDGET_MAPPED (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_VISIBLE (column->button) &&
!GTK_WIDGET_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->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE)
{
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)
{
GList *tmp_list;
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
if (GTK_WIDGET_VISIBLE (child->widget))
{
if (!GTK_WIDGET_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 (widget->window);
}
static void
gtk_tree_view_size_request_buttons (GtkTreeView *tree_view)
{
GList *list;
tree_view->priv->header_height = 1;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
{
for (list = tree_view->priv->columns; list; list = list->next)
{
GtkRequisition requisition;
GtkTreeViewColumn *column;
column = list->data;
gtk_widget_size_request (column->button, &requisition);
gtk_tree_view_column_set_width (column,
MAX (column->width, requisition.width));
tree_view->priv->header_height = MAX (tree_view->priv->header_height, requisition.height);
}
}
}
static void
gtk_tree_view_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkTreeView *tree_view;
GList *tmp_list;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
requisition->width = 200;
requisition->height = 200;
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_VISIBLE (child->widget))
gtk_widget_size_request (child->widget, &child_requisition);
}
gtk_tree_view_size_request_buttons (tree_view);
}
static void
gtk_tree_view_size_allocate_buttons (GtkWidget *widget)
{
GtkTreeView *tree_view;
GList *list;
GList *last_column;
GtkTreeViewColumn *column;
GtkAllocation allocation;
gint width = 0;
tree_view = GTK_TREE_VIEW (widget);
allocation.y = 0;
allocation.height = tree_view->priv->header_height;
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 (list = tree_view->priv->columns; list != last_column; list = list->next)
{
column = list->data;
if (!column->visible)
continue;
allocation.x = width;
allocation.width = column->width;
width += column->width;
gtk_widget_size_allocate (column->button, &allocation);
if (column->window)
gdk_window_move_resize (column->window,
width - TREE_VIEW_DRAG_WIDTH/2, allocation.y,
TREE_VIEW_DRAG_WIDTH, allocation.height);
}
column = list->data;
allocation.x = width;
allocation.width = MAX (widget->allocation.width, tree_view->priv->width) - width;
gtk_widget_size_allocate (column->button, &allocation);
if (column->window)
gdk_window_move_resize (column->window,
allocation.x + allocation.width - TREE_VIEW_DRAG_WIDTH/2,
0,
TREE_VIEW_DRAG_WIDTH, allocation.height);
}
static void
gtk_tree_view_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GList *tmp_list;
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
widget->allocation = *allocation;
tree_view = GTK_TREE_VIEW (widget);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
GtkAllocation allocation;
GtkRequisition requisition;
GtkTreeViewChild *child = tmp_list->data;
tmp_list = tmp_list->next;
allocation.x = child->x;
allocation.y = child->y;
gtk_widget_get_child_requisition (child->widget, &requisition);
allocation.width = requisition.width;
allocation.height = requisition.height;
gtk_widget_size_allocate (child->widget, &allocation);
}
if (GTK_WIDGET_REALIZED (widget))
{
gdk_window_move_resize (widget->window,
allocation->x, allocation->y,
allocation->width, allocation->height);
gdk_window_move_resize (tree_view->priv->header_window,
0, 0,
MAX (tree_view->priv->width, allocation->width),
tree_view->priv->header_height);
}
/* FIXME I don't think the invariant that the model must be setup
* before touching the buttons is maintained in most of the
* rest of the code, e.g. in realize, so something is wrong
*/
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
gtk_tree_view_size_allocate_buttons (widget);
tree_view->priv->hadjustment->page_size = allocation->width;
tree_view->priv->hadjustment->page_increment = allocation->width / 2;
tree_view->priv->hadjustment->lower = 0;
tree_view->priv->hadjustment->upper = tree_view->priv->width;
if (tree_view->priv->hadjustment->value + allocation->width > tree_view->priv->width)
tree_view->priv->hadjustment->value = MAX (tree_view->priv->width - allocation->width, 0);
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed");
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;
if (tree_view->priv->vadjustment->value + allocation->height > tree_view->priv->height)
gtk_adjustment_set_value (tree_view->priv->vadjustment,
(gfloat) MAX (tree_view->priv->height - allocation->height, 0));
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
}
static void
gtk_tree_view_draw_node_focus_rect (GtkWidget *widget,
GtkTreePath *path)
{
GtkTreeView *tree_view;
GtkRBTree *tree = NULL;
GtkRBNode *node = NULL;
gint bin_window_width = 0;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree == NULL)
return;
gdk_drawable_get_size (tree_view->priv->bin_window,
&bin_window_width, NULL);
/* FIXME need a style function appropriate for this */
gdk_draw_rectangle (tree_view->priv->bin_window,
widget->style->fg_gc[GTK_STATE_NORMAL],
FALSE,
0,
_gtk_rbtree_node_find_offset (tree, node) + TREE_VIEW_HEADER_HEIGHT (tree_view),
bin_window_width - 2,
GTK_RBNODE_GET_HEIGHT (node));
}
GdkPixmap*
gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkTreeIter iter;
GtkRBTree *tree;
GtkRBNode *node;
GtkCellRenderer *cell;
gint i;
gint cell_offset;
gint max_height;
GList *list;
GdkRectangle background_area;
GtkWidget *widget;
gint depth;
/* start drawing inside the black outline */
gint x = 1, y = 1;
GdkDrawable *drawable;
gint bin_window_width;
widget = GTK_WIDGET (tree_view);
depth = gtk_tree_path_get_depth (path);
if (_gtk_tree_view_find_node (tree_view,
path,
&tree,
&node))
return NULL;
if (!gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path))
return NULL;
max_height = GTK_RBNODE_GET_HEIGHT (node);
cell_offset = x;
background_area.y = y + TREE_VIEW_VERTICAL_SEPARATOR;
background_area.height = max_height - TREE_VIEW_VERTICAL_SEPARATOR;
gdk_drawable_get_size (tree_view->priv->bin_window,
&bin_window_width, NULL);
drawable = gdk_pixmap_new (tree_view->priv->bin_window,
bin_window_width + 2,
max_height + 2,
-1);
gdk_draw_rectangle (drawable,
widget->style->base_gc[GTK_WIDGET_STATE (widget)],
TRUE,
0, 0,
bin_window_width + 2,
max_height + 2);
gdk_draw_rectangle (drawable,
widget->style->black_gc,
FALSE,
0, 0,
bin_window_width + 1,
max_height + 1);
for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
{
GtkTreeViewColumn *column = list->data;
GdkRectangle cell_area;
if (!column->visible)
continue;
cell = column->cell;
gtk_tree_view_column_set_cell_data (column,
tree_view->priv->model,
&iter);
background_area.x = cell_offset;
background_area.width = TREE_VIEW_COLUMN_WIDTH (column);
cell_area = background_area;
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
cell_area.x += depth * tree_view->priv->tab_offset;
cell_area.width -= depth * tree_view->priv->tab_offset;
}
gtk_cell_renderer_render (cell,
drawable,
widget,
&background_area,
&cell_area,
NULL,
0);
cell_offset += TREE_VIEW_COLUMN_WIDTH (column);
}
return drawable;
}
/* Warning: Very scary function.
* Modify at your own risk
*/
static gboolean
gtk_tree_view_bin_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkTreeView *tree_view;
GtkTreePath *path;
GtkRBTree *tree;
GList *list;
GtkRBNode *node, *last_node = NULL;
GtkRBNode *cursor = NULL;
GtkRBTree *cursor_tree = NULL, *last_tree = NULL;
GtkRBNode *drag_highlight = NULL;
GtkRBTree *drag_highlight_tree = NULL;
GtkTreeIter iter;
GtkCellRenderer *cell;
gint new_y;
gint y_offset, x_offset, cell_offset;
gint i, max_height;
gint depth;
GdkRectangle background_area;
GdkRectangle cell_area;
guint flags;
gboolean last_selected;
gint highlight_x;
gint bin_window_width;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (tree_view->priv->tree == NULL)
return TRUE;
gtk_tree_view_check_dirty (GTK_TREE_VIEW (widget));
/* we want to account for a potential HEADER offset.
* That is, if the header exists, we want to offset our event by its
* height to find the right node.
*/
new_y = (event->area.y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):event->area.y;
y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree,
new_y - TREE_VIEW_HEADER_HEIGHT (tree_view),
&tree,
&node) + new_y - event->area.y;
if (node == NULL)
return TRUE;
/* See if the last node was selected */
_gtk_rbtree_prev_full (tree, node, &last_tree, &last_node);
last_selected = (last_node && GTK_RBNODE_FLAG_SET (last_node, GTK_RBNODE_IS_SELECTED));
/* 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);
if (tree_view->priv->cursor)
_gtk_tree_view_find_node (tree_view, tree_view->priv->cursor, &cursor_tree, &cursor);
if (tree_view->priv->drag_dest_row)
_gtk_tree_view_find_node (tree_view, tree_view->priv->drag_dest_row,
&drag_highlight_tree, &drag_highlight);
gdk_drawable_get_size (tree_view->priv->bin_window,
&bin_window_width, NULL);
/* 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
{
/* Need to think about this more.
if (tree_view->priv->show_expanders)
max_height = MAX (TREE_VIEW_EXPANDER_MIN_HEIGHT, GTK_RBNODE_GET_HEIGHT (node));
else
*/
max_height = GTK_RBNODE_GET_HEIGHT (node);
x_offset = -event->area.x;
cell_offset = 0;
highlight_x = 0; /* should match x coord of first cell */
background_area.y = y_offset + event->area.y + TREE_VIEW_VERTICAL_SEPARATOR;
background_area.height = max_height - TREE_VIEW_VERTICAL_SEPARATOR;
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;
/* Draw the selection */
gdk_draw_rectangle (event->window,
GTK_WIDGET (tree_view)->style->bg_gc [GTK_STATE_SELECTED],
TRUE,
event->area.x,
background_area.y - (last_selected?TREE_VIEW_VERTICAL_SEPARATOR:0),
event->area.width,
background_area.height + (last_selected?TREE_VIEW_VERTICAL_SEPARATOR:0));
last_selected = TRUE;
}
else
{
last_selected = FALSE;
}
for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
{
GtkTreeViewColumn *column = list->data;
if (!column->visible)
continue;
cell = column->cell;
gtk_tree_view_column_set_cell_data (column,
tree_view->priv->model,
&iter);
background_area.x = cell_offset;
background_area.width = TREE_VIEW_COLUMN_WIDTH (column);
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
cell_area = background_area;
cell_area.x += depth*tree_view->priv->tab_offset;
cell_area.width -= depth*tree_view->priv->tab_offset;
/* 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;
gtk_cell_renderer_render (cell,
event->window,
widget,
&background_area,
&cell_area,
&event->area,
flags);
if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT)
{
gint x, y;
gdk_window_get_pointer (tree_view->priv->bin_window, &x, &y, 0);
gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
tree,
node,
x, y);
}
}
else
{
cell_area = background_area;
gtk_cell_renderer_render (cell,
event->window,
widget,
&background_area,
&cell_area,
&event->area,
flags);
}
cell_offset += TREE_VIEW_COLUMN_WIDTH (column);
}
if (node == cursor &&
GTK_WIDGET_HAS_FOCUS (widget))
gtk_tree_view_draw_focus (widget);
if (node == drag_highlight)
{
/* Draw indicator for the drop
*/
gint highlight_y = -1;
switch (tree_view->priv->drag_dest_pos)
{
case GTK_TREE_VIEW_DROP_BEFORE:
highlight_y = background_area.y - TREE_VIEW_VERTICAL_SEPARATOR/2;
break;
case GTK_TREE_VIEW_DROP_AFTER:
highlight_y = background_area.y + background_area.height + TREE_VIEW_VERTICAL_SEPARATOR/2;
break;
case GTK_TREE_VIEW_DROP_INTO_OR_BEFORE:
case GTK_TREE_VIEW_DROP_INTO_OR_AFTER:
gtk_tree_view_draw_node_focus_rect (widget,
tree_view->priv->drag_dest_row);
break;
}
if (highlight_y >= 0)
{
gdk_draw_line (event->window,
widget->style->black_gc,
highlight_x,
highlight_y,
bin_window_width - highlight_x,
highlight_y);
}
}
y_offset += max_height;
if (node->children)
{
GtkTreeIter parent = iter;
gboolean has_child;
tree = node->children;
node = tree->root;
while (node->left != tree->nil)
node = node->left;
has_child = gtk_tree_model_iter_children (tree_view->priv->model,
&iter,
&parent);
cell = gtk_tree_view_get_column (tree_view, 0)->cell;
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);
cell = gtk_tree_view_get_column (tree_view, 0)->cell;
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've run out of tree. It's okay to return though, as
* we'd only break out of the while loop below. */
return TRUE;
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 < event->area.height);
return TRUE;
}
static gboolean
gtk_tree_view_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
if (event->window == tree_view->priv->bin_window)
return gtk_tree_view_bin_expose (widget, event);
return TRUE;
}
static gboolean
coords_are_over_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in tree window coords */
gint x,
gint y)
{
GdkRectangle arrow;
gint x2;
if ((node->flags & GTK_RBNODE_IS_PARENT) == 0)
return FALSE;
arrow.y = _gtk_rbtree_node_find_offset (tree, node) + TREE_VIEW_HEADER_HEIGHT (tree_view);
arrow.height = GTK_RBNODE_GET_HEIGHT (node);
gtk_tree_view_get_arrow_range (tree_view, &arrow.x, &x2);
arrow.width = x2 - arrow.x;
return (x >= arrow.x &&
x < (arrow.x + arrow.height) &&
y >= arrow.y &&
y < (arrow.y + arrow.height));
}
static void
do_unprelight (GtkTreeView *tree_view,
/* these are in tree window coords */
gint x,
gint y)
{
gint y1, y2;
if (tree_view->priv->prelight_node == NULL)
return;
y1 = _gtk_rbtree_node_find_offset (tree_view->priv->prelight_tree,
tree_view->priv->prelight_node) +
TREE_VIEW_HEADER_HEIGHT (tree_view);
y2 = y1 + GTK_RBNODE_GET_HEIGHT (tree_view->priv->prelight_node);
if (tree_view->priv->prelight_node)
GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node, GTK_RBNODE_IS_PRELIT);
/* FIXME queue draw on y1-y2 range */
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT) &&
!coords_are_over_arrow (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
x,
y))
/* We need to unprelight the old arrow. */
{
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
gtk_tree_view_draw_arrow (tree_view,
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
x,
y);
}
tree_view->priv->prelight_node = NULL;
tree_view->priv->prelight_tree = NULL;
/* FIXME */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static void
do_prelight (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
/* these are in tree window coords */
gint x,
gint y)
{
if (coords_are_over_arrow (tree_view, tree, node, x, y))
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
tree_view->priv->prelight_node = node;
tree_view->priv->prelight_tree = tree;
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
static gboolean
gtk_tree_view_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkTreeView *tree_view;
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
tree_view = (GtkTreeView *) widget;
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE))
{
gint x;
gint new_width;
if (event->is_hint || event->window != widget->window)
gtk_widget_get_pointer (widget, &x, NULL);
else
x = event->x;
new_width = gtk_tree_view_new_column_width (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos, &x);
if (x != tree_view->priv->x_drag)
{
gtk_tree_view_column_set_width (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos), new_width);
}
/* FIXME: Do we need to scroll */
_gtk_tree_view_set_size (GTK_TREE_VIEW (widget), -1, tree_view->priv->height);
return FALSE;
}
/* Sanity check it */
if (event->window != tree_view->priv->bin_window)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
gtk_tree_view_maybe_begin_dragging_row (tree_view, event);
do_unprelight (tree_view, event->x, event->y);
new_y = ((gint)event->y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):(gint)event->y;
_gtk_rbtree_find_offset (tree_view->priv->tree, new_y - TREE_VIEW_HEADER_HEIGHT (tree_view),
&tree,
&node);
if (node == NULL)
return TRUE;
/* 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))
return TRUE;
do_prelight (tree_view, tree, node, event->x, new_y);
return TRUE;
}
/* 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;
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
/* Sanity check it */
if (event->window != tree_view->priv->bin_window)
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
if ((tree_view->priv->button_pressed_node != NULL) &&
(tree_view->priv->button_pressed_node != node))
return TRUE;
/* find the node internally */
new_y = ((gint)event->y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):(gint)event->y;
_gtk_rbtree_find_offset (tree_view->priv->tree,
new_y - TREE_VIEW_HEADER_HEIGHT (tree_view),
&tree,
&node);
if (node == NULL)
return FALSE;
do_prelight (tree_view, tree, node, event->x, new_y);
return TRUE;
}
static gboolean
gtk_tree_view_leave_notify (GtkWidget *widget,
GdkEventCrossing *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
tree_view = GTK_TREE_VIEW (widget);
do_unprelight (tree_view, -1000, -1000); /* coords not possibly over an arrow */
return TRUE;
}
static gboolean
gtk_tree_view_button_press (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view;
GList *list;
GtkTreeViewColumn *column;
gint i;
GdkRectangle background_area;
GdkRectangle cell_area;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
tree_view = GTK_TREE_VIEW (widget);
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;
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
/* are we in an arrow? */
if (tree_view->priv->prelight_node &&
GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
{
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_draw_arrow (GTK_TREE_VIEW (widget),
tree_view->priv->prelight_tree,
tree_view->priv->prelight_node,
event->x,
event->y);
}
return TRUE;
}
/* find the node that was clicked */
new_y = ((gint)event->y<TREE_VIEW_HEADER_HEIGHT (tree_view))?TREE_VIEW_HEADER_HEIGHT (tree_view):(gint)event->y;
y_offset = -_gtk_rbtree_find_offset (tree_view->priv->tree,
new_y - TREE_VIEW_HEADER_HEIGHT (tree_view),
&tree,
&node) + new_y - (gint)event->y;
if (node == NULL)
/* We clicked in dead space */
return TRUE;
/* Get the path and the node */
path = _gtk_tree_view_find_path (tree_view, tree, node);
depth = gtk_tree_path_get_depth (path);
background_area.y = y_offset + event->y + TREE_VIEW_VERTICAL_SEPARATOR;
background_area.height = GTK_RBNODE_GET_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR;
background_area.x = 0;
/* Let the cell have a chance at selecting it. */
for (i = 0, list = tree_view->priv->columns; i < tree_view->priv->n_columns; i++, list = list->next)
{
GtkTreeViewColumn *column = list->data;
GtkCellRenderer *cell;
GtkTreeIter iter;
if (!column->visible)
continue;
background_area.width = TREE_VIEW_COLUMN_WIDTH (column);
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS(tree_view))
{
cell_area = background_area;
cell_area.x += depth*tree_view->priv->tab_offset;
cell_area.width -= depth*tree_view->priv->tab_offset;
}
else
{
cell_area = background_area;
}
cell = column->cell;
if ((background_area.x > (gint) event->x) ||
(background_area.y > (gint) event->y) ||
(background_area.x + background_area.width <= (gint) event->x) ||
(background_area.y + background_area.height <= (gint) event->y))
{
background_area.x += background_area.width;
continue;
}
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
gtk_tree_view_column_set_cell_data (column,
tree_view->priv->model,
&iter);
path_string = gtk_tree_path_to_string (path);
if (gtk_cell_renderer_event (cell,
(GdkEvent *)event,
widget,
path_string,
&background_area,
&cell_area,
0))
{
g_free (path_string);
gtk_tree_path_free (path);
return TRUE;
}
else
{
g_free (path_string);
break;
}
}
/* Save press to possibly begin a drag
*/
if (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;
}
/* Handle the selection */
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
node,
tree,
path,
event->state);
gtk_tree_path_free (path);
return TRUE;
}
for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
{
column = list->data;
if (event->window == column->window &&
column->column_type == GTK_TREE_VIEW_COLUMN_RESIZEABLE &&
column->window)
{
gpointer drag_data;
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);
/* block attached dnd signal handler */
drag_data = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
if (drag_data)
gtk_signal_handler_block_by_data (GTK_OBJECT (widget), drag_data);
if (!GTK_WIDGET_HAS_FOCUS (widget))
gtk_widget_grab_focus (widget);
tree_view->priv->drag_pos = i;
tree_view->priv->x_drag = (column->button->allocation.x + column->button->allocation.width);
}
}
return TRUE;
}
static gboolean
gtk_tree_view_button_release (GtkWidget *widget,
GdkEventButton *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
tree_view = GTK_TREE_VIEW (widget);
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))
{
gpointer drag_data;
gint width;
gint x;
gint i;
i = tree_view->priv->drag_pos;
tree_view->priv->drag_pos = -1;
/* unblock attached dnd signal handler */
drag_data = gtk_object_get_data (GTK_OBJECT (widget), "gtk-site-data");
if (drag_data)
gtk_signal_handler_unblock_by_data (GTK_OBJECT (widget), drag_data);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IN_COLUMN_RESIZE);
gtk_widget_get_pointer (widget, &x, NULL);
gtk_grab_remove (widget);
gdk_pointer_ungrab (event->time);
width = gtk_tree_view_new_column_width (GTK_TREE_VIEW (widget), i, &x);
gtk_tree_view_column_set_width (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), i), width);
return FALSE;
}
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;
GtkTreeIter iter;
/* Actually activate the node */
if (tree_view->priv->button_pressed_node->children == NULL)
{
GtkTreeIter child;
path = _gtk_tree_view_find_path (GTK_TREE_VIEW (widget),
tree_view->priv->button_pressed_tree,
tree_view->priv->button_pressed_node);
tree_view->priv->button_pressed_node->children = _gtk_rbtree_new ();
tree_view->priv->button_pressed_node->children->parent_tree = tree_view->priv->button_pressed_tree;
tree_view->priv->button_pressed_node->children->parent_node = tree_view->priv->button_pressed_node;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter);
gtk_tree_view_build_tree (tree_view,
tree_view->priv->button_pressed_node->children,
&child,
gtk_tree_path_get_depth (path) + 1,
FALSE,
GTK_WIDGET_REALIZED (widget));
}
else
{
path = _gtk_tree_view_find_path (GTK_TREE_VIEW (widget),
tree_view->priv->button_pressed_node->children,
tree_view->priv->button_pressed_node->children->root);
gtk_tree_model_get_iter (tree_view->priv->model,
&iter,
path);
gtk_tree_view_discover_dirty (GTK_TREE_VIEW (widget),
tree_view->priv->button_pressed_node->children,
&iter,
gtk_tree_path_get_depth (path));
_gtk_rbtree_remove (tree_view->priv->button_pressed_node->children);
}
gtk_tree_path_free (path);
_gtk_tree_view_set_size (GTK_TREE_VIEW (widget), -1, -1);
}
tree_view->priv->button_pressed_node = NULL;
}
return TRUE;
}
static void
gtk_tree_view_draw_focus (GtkWidget *widget)
{
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (widget));
tree_view = GTK_TREE_VIEW (widget);
if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS))
return;
if (tree_view->priv->cursor == NULL)
return;
gtk_tree_view_draw_node_focus_rect (widget, tree_view->priv->cursor);
}
static gint
gtk_tree_view_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
GtkTreeView *tree_view;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
tree_view = GTK_TREE_VIEW (widget);
GTK_WIDGET_SET_FLAGS (widget, GTK_HAS_FOCUS);
/* FIXME don't redraw so much */
gtk_widget_queue_draw (widget);
return FALSE;
}
static gint
gtk_tree_view_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (widget), FALSE);
g_return_val_if_fail (event != NULL, FALSE);
GTK_WIDGET_UNSET_FLAGS (widget, GTK_HAS_FOCUS);
/* FIXME don't redraw so much */
gtk_widget_queue_draw (widget);
return FALSE;
}
/* FIXME: It would be neat to someday make the headers a seperate widget that
* can be shared between various apps. Wishful thinking, though...
*/
/* 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)
{
GtkWidget *focus_child;
GtkContainer *container;
GList *last_column, *first_column;
GList *tmp_list;
if (! GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_HEADERS_VISIBLE))
return FALSE;
focus_child = GTK_CONTAINER (tree_view)->focus_child;
container = GTK_CONTAINER (tree_view);
for (last_column = g_list_last (tree_view->priv->columns);
last_column &&
!(GTK_TREE_VIEW_COLUMN (last_column->data)->visible) &&
GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (last_column->data)->button);
last_column = last_column->prev)
;
for (first_column = tree_view->priv->columns;
first_column &&
!(GTK_TREE_VIEW_COLUMN (first_column->data)->visible) &&
GTK_WIDGET_CAN_FOCUS (GTK_TREE_VIEW_COLUMN (first_column->data)->button);
first_column = first_column->next)
;
/* no headers are visible, or are focussable. We can't focus in or out.
* I wonder if focussable is a real word...
*/
if (last_column == NULL)
return FALSE;
/* First thing we want to handle is entering and leaving the headers.
*/
switch (dir)
{
case GTK_DIR_TAB_BACKWARD:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (first_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_TAB_FORWARD:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (last_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_LEFT:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (last_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (first_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_RIGHT:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
goto cleanup;
}
if (focus_child == GTK_TREE_VIEW_COLUMN (last_column->data)->button)
{
focus_child = NULL;
goto cleanup;
}
break;
case GTK_DIR_UP:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
}
else
{
focus_child = NULL;
}
goto cleanup;
case GTK_DIR_DOWN:
if (!focus_child)
{
focus_child = GTK_TREE_VIEW_COLUMN (first_column->data)->button;
gtk_widget_grab_focus (focus_child);
}
else
{
focus_child = NULL;
}
goto cleanup;
}
/* We need to move the focus to the next button. */
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)
{
if (gtk_container_focus (GTK_CONTAINER (GTK_TREE_VIEW_COLUMN (tmp_list->data)->button), dir))
{
/* The focus moves inside the button. */
/* This is probably a great example of bad UI */
goto cleanup;
}
break;
}
/* We need to move the focus among the row of buttons. */
while (tmp_list)
{
GtkTreeViewColumn *column;
if (dir == GTK_DIR_RIGHT || dir == GTK_DIR_TAB_FORWARD)
tmp_list = tmp_list->next;
else
tmp_list = tmp_list->prev;
if (tmp_list == NULL)
{
g_warning ("Internal button not found");
goto cleanup;
}
column = tmp_list->data;
if (column->button &&
column->visible &&
GTK_WIDGET_CAN_FOCUS (column->button))
{
focus_child = column->button;
gtk_widget_grab_focus (column->button);
break;
}
}
}
cleanup:
/* if focus child is non-null, we assume it's been set to the current focus child
*/
if (focus_child)
{
/* If the following isn't true, then the view is smaller then the scrollpane.
*/
if ((focus_child->allocation.x + focus_child->allocation.width) <=
(tree_view->priv->hadjustment->upper))
{
/* Scroll to the button, if needed */
if ((tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size) <
(focus_child->allocation.x + focus_child->allocation.width))
gtk_adjustment_set_value (tree_view->priv->hadjustment,
focus_child->allocation.x + focus_child->allocation.width -
tree_view->priv->hadjustment->page_size);
else if (tree_view->priv->hadjustment->value > focus_child->allocation.x)
gtk_adjustment_set_value (tree_view->priv->hadjustment,
focus_child->allocation.x);
}
}
return (focus_child != NULL);
}
/* WARNING: Scary function */
static gint
gtk_tree_view_focus (GtkContainer *container,
GtkDirectionType direction)
{
GtkTreeView *tree_view;
GtkWidget *focus_child;
GdkEvent *event;
GtkRBTree *cursor_tree;
GtkRBNode *cursor_node;
g_return_val_if_fail (container != NULL, FALSE);
g_return_val_if_fail (GTK_IS_TREE_VIEW (container), FALSE);
g_return_val_if_fail (GTK_WIDGET_VISIBLE (container), FALSE);
tree_view = GTK_TREE_VIEW (container);
if (!GTK_WIDGET_IS_SENSITIVE (container))
return FALSE;
if (tree_view->priv->tree == NULL)
return FALSE;
focus_child = container->focus_child;
/* Case 1. Headers have focus. */
if (focus_child)
{
switch (direction)
{
case GTK_DIR_LEFT:
case GTK_DIR_TAB_BACKWARD:
return (gtk_tree_view_header_focus (tree_view, direction));
case GTK_DIR_UP:
return FALSE;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_RIGHT:
case GTK_DIR_DOWN:
if (direction != GTK_DIR_DOWN)
{
if (gtk_tree_view_header_focus (tree_view, direction))
return TRUE;
}
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_widget_grab_focus (GTK_WIDGET (container));
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
/* if there is no keyboard focus yet, we select the first node
*/
if (tree_view->priv->cursor == NULL)
tree_view->priv->cursor = gtk_tree_path_new_root ();
gtk_tree_selection_select_path (tree_view->priv->selection,
tree_view->priv->cursor);
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
}
/* Case 2. We don't have focus at all. */
if (!GTK_WIDGET_HAS_FOCUS (container))
{
if ((direction == GTK_DIR_TAB_FORWARD) ||
(direction == GTK_DIR_RIGHT) ||
(direction == GTK_DIR_DOWN))
{
if (gtk_tree_view_header_focus (tree_view, direction))
return TRUE;
}
/* The headers didn't want the focus, so we take it. */
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_DRAW_KEYFOCUS);
gtk_widget_grab_focus (GTK_WIDGET (container));
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
if (tree_view->priv->cursor == NULL)
tree_view->priv->cursor = gtk_tree_path_new_root ();
gtk_tree_selection_select_path (tree_view->priv->selection,
tree_view->priv->cursor);
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/* Case 3. We have focus already, but no cursor. We pick the first one
* and run with it. */
if (tree_view->priv->cursor == NULL)
{
/* We lost our cursor somehow. Arbitrarily select the first node, and
* return
*/
tree_view->priv->cursor = gtk_tree_path_new_root ();
gtk_tree_selection_select_path (tree_view->priv->selection,
tree_view->priv->cursor);
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
0.0);
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/* Case 3. We have focus already. Move the cursor. */
if (direction == GTK_DIR_LEFT)
{
gfloat val;
val = tree_view->priv->hadjustment->value - tree_view->priv->hadjustment->page_size/2;
val = MAX (val, 0.0);
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->hadjustment), val);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
return TRUE;
}
if (direction == GTK_DIR_RIGHT)
{
gfloat val;
val = tree_view->priv->hadjustment->value + tree_view->priv->hadjustment->page_size/2;
val = MIN (tree_view->priv->hadjustment->upper - tree_view->priv->hadjustment->page_size, val);
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->hadjustment), val);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
return TRUE;
}
cursor_tree = NULL;
cursor_node = NULL;
_gtk_tree_view_find_node (tree_view, tree_view->priv->cursor,
&cursor_tree,
&cursor_node);
switch (direction)
{
case GTK_DIR_TAB_BACKWARD:
case GTK_DIR_UP:
_gtk_rbtree_prev_full (cursor_tree,
cursor_node,
&cursor_tree,
&cursor_node);
break;
case GTK_DIR_TAB_FORWARD:
case GTK_DIR_DOWN:
_gtk_rbtree_next_full (cursor_tree,
cursor_node,
&cursor_tree,
&cursor_node);
break;
default:
break;
}
if (cursor_node)
{
GdkModifierType state = 0;
event = gtk_get_current_event ();
if (event)
gdk_event_get_state (event, &state);
if (event)
gdk_event_free (event);
gtk_tree_path_free (tree_view->priv->cursor);
tree_view->priv->cursor = _gtk_tree_view_find_path (tree_view,
cursor_tree,
cursor_node);
if (tree_view->priv->cursor)
_gtk_tree_selection_internal_select_node (tree_view->priv->selection,
cursor_node,
cursor_tree,
tree_view->priv->cursor,
state);
gtk_tree_view_clamp_node_visible (tree_view, cursor_tree, cursor_node);
gtk_widget_grab_focus (GTK_WIDGET (tree_view));
/* FIXME make this more efficient */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/* At this point, we've progressed beyond the edge of the rows. */
if ((direction == GTK_DIR_LEFT) ||
(direction == GTK_DIR_TAB_BACKWARD) ||
(direction == GTK_DIR_UP))
/* We can't go back anymore. Try the headers */
return (gtk_tree_view_header_focus (tree_view, direction));
/* we've reached the end of the tree. Go on. */
return FALSE;
}
/* Container method
*/
static void
gtk_tree_view_remove (GtkContainer *container,
GtkWidget *widget)
{
GtkTreeView *tree_view;
GtkTreeViewChild *child = NULL;
GList *tmp_list;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (container));
tree_view = GTK_TREE_VIEW (container);
tmp_list = tree_view->priv->children;
while (tmp_list)
{
child = tmp_list->data;
if (child->widget == widget)
break;
tmp_list = tmp_list->next;
}
if (tmp_list)
{
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_free (child);
}
}
static void
gtk_tree_view_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GtkTreeView *tree_view;
GtkTreeViewChild *child = NULL;
GtkTreeViewColumn *column;
GList *tmp_list;
g_return_if_fail (container != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (container));
g_return_if_fail (callback != NULL);
tree_view = GTK_TREE_VIEW (container);
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);
}
}
/* TreeModel Callbacks
*/
static void
gtk_tree_view_changed (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkRBTree *tree;
GtkRBNode *node;
gint height;
gboolean dirty_marked;
g_return_if_fail (path != NULL || iter != NULL);
if (path == NULL)
path = gtk_tree_model_get_path (model, iter);
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 */
return;
dirty_marked = gtk_tree_view_discover_dirty_iter (tree_view,
iter,
gtk_tree_path_get_depth (path),
&height);
if (GTK_RBNODE_GET_HEIGHT (node) != height + TREE_VIEW_VERTICAL_SEPARATOR)
{
_gtk_rbtree_node_set_height (tree, node, height + TREE_VIEW_VERTICAL_SEPARATOR);
gtk_widget_queue_resize (GTK_WIDGET (data));
return;
}
if (dirty_marked)
gtk_widget_queue_resize (GTK_WIDGET (data));
else
{
/* FIXME: just redraw the node */
gtk_widget_queue_draw (GTK_WIDGET (data));
}
}
static void
gtk_tree_view_inserted (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *) data;
gint *indices;
GtkRBTree *tmptree, *tree;
GtkRBNode *tmpnode = NULL;
gint max_height;
gint depth;
gint i = 0;
tmptree = tree = tree_view->priv->tree;
g_return_if_fail (path != NULL || iter != NULL);
if (path == NULL)
path = gtk_tree_model_get_path (model, iter);
else if (iter == NULL)
gtk_tree_model_get_iter (model, iter, 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 */
return;
}
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.");
return;
}
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 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_child_toggled (model, tmppath, NULL, data);
gtk_tree_path_free (tmppath);
return;
}
tmptree = tmpnode->children;
tree = tmptree;
i++;
}
if (tree == NULL)
return;
/* next, update the selection */
if (tree_view->priv->anchor)
{
gint *select_indices = gtk_tree_path_get_indices (tree_view->priv->anchor);
gint select_depth = gtk_tree_path_get_depth (tree_view->priv->anchor);
for (i = 0; i < depth && i < select_depth; i++)
{
if (indices[i] < select_indices[i])
{
select_indices[i]++;
break;
}
else if (indices[i] > select_indices[i])
break;
else if (i == depth - 1)
{
select_indices[i]++;
break;
}
}
}
/* ref the node */
gtk_tree_model_ref_iter (tree_view->priv->model, iter);
max_height = gtk_tree_view_insert_iter_height (tree_view,
tree,
iter,
depth);
if (indices[depth - 1] == 0)
{
tmpnode = _gtk_rbtree_find_count (tree, 1);
_gtk_rbtree_insert_before (tree, tmpnode, max_height);
}
else
{
tmpnode = _gtk_rbtree_find_count (tree, indices[depth - 1]);
_gtk_rbtree_insert_after (tree, tmpnode, max_height);
}
_gtk_tree_view_set_size (tree_view, -1, tree_view->priv->height + max_height);
}
static void
gtk_tree_view_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;
g_return_if_fail (path != NULL || iter != NULL);
if (iter)
real_iter = *iter;
if (path == NULL)
path = gtk_tree_model_get_path (model, iter);
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 */
return;
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)
return;
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;
break;
}
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
else
{
/* FIXME: Just redraw the node */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
}
static void
gtk_tree_view_deleted (GtkTreeModel *model,
GtkTreePath *path,
gpointer data)
{
GtkTreeView *tree_view = (GtkTreeView *)data;
GtkRBTree *tree;
GtkRBNode *node;
GList *list;
g_return_if_fail (path != NULL);
if (_gtk_tree_view_find_node (tree_view, path, &tree, &node))
return;
/* next, update the selection */
if (tree_view->priv->anchor)
{
gint i;
gint depth = gtk_tree_path_get_depth (path);
gint *indices = gtk_tree_path_get_indices (path);
gint select_depth = gtk_tree_path_get_depth (tree_view->priv->anchor);
gint *select_indices = gtk_tree_path_get_indices (tree_view->priv->anchor);
if (gtk_tree_path_compare (path, tree_view->priv->anchor) == 0)
{
if (GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_SELECTED) &&
tree_view->priv->selection)
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->selection),
"selection_changed");
}
else
{
for (i = 0; i < depth && i < select_depth; i++)
{
if (indices[i] < select_indices[i])
{
select_indices[i] = MAX (select_indices[i], 0);
break;
}
else if (indices[i] > select_indices[i])
break;
else if (i == depth - 1)
{
select_indices[i] = MAX (select_indices[i], 0);
break;
}
}
}
}
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)
((GtkTreeViewColumn *)list->data)->dirty = TRUE;
if (tree->root->count == 1)
_gtk_rbtree_remove (tree);
else
_gtk_rbtree_remove_node (tree, node);
_gtk_tree_view_set_size (GTK_TREE_VIEW (data), -1, -1);
}
/* Internal tree functions */
static gint
gtk_tree_view_insert_iter_height (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth)
{
GtkTreeViewColumn *column;
GtkCellRenderer *cell;
GList *list;
gint max_height = 0;
gint i;
i = 0;
/* do stuff with node */
for (list = tree_view->priv->columns; list; list = list->next)
{
gint height = 0, width = 0;
column = list->data;
if (!column->visible)
continue;
if (column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
{
++i;
continue;
}
cell = column->cell;
gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter);
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, &height);
max_height = MAX (max_height, TREE_VIEW_VERTICAL_SEPARATOR + height);
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
gtk_tree_view_column_set_width (column,
MAX (column->width, depth * tree_view->priv->tab_offset + width));
else
gtk_tree_view_column_set_width (column,
MAX (column->width, width));
++i;
}
return max_height;
}
static void
gtk_tree_view_build_tree (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth,
gboolean recurse,
gboolean calc_bounds)
{
GtkRBNode *temp = NULL;
gint max_height;
do
{
max_height = 0;
if (calc_bounds)
max_height = gtk_tree_view_insert_iter_height (tree_view,
tree,
iter,
depth);
gtk_tree_model_ref_iter (tree_view->priv->model, iter);
temp = _gtk_rbtree_insert_after (tree, temp, max_height);
if (recurse)
{
GtkTreeIter child;
if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
{
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, calc_bounds);
}
}
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;
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_IS_LIST);
}
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
}
static void
gtk_tree_view_calc_size (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth)
{
GtkRBNode *temp;
GtkTreeIter child;
GtkCellRenderer *cell;
GList *list;
GtkTreeViewColumn *column;
gint max_height;
gint i;
TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
temp = tree->root;
while (temp->left != tree->nil)
temp = temp->left;
do
{
max_height = 0;
/* Do stuff with node */
for (list = tree_view->priv->columns, i = 0; i < tree_view->priv->n_columns; list = list->next, i++)
{
gint height = 0, width = 0;
column = list->data;
if (!column->visible)
continue;
gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter);
cell = column->cell;
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, &height);
max_height = MAX (max_height, TREE_VIEW_VERTICAL_SEPARATOR + height);
/* FIXME: I'm getting the width of all nodes here. )-: */
if (column->dirty == FALSE || column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
continue;
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
gtk_tree_view_column_set_width (column,
MAX (column->width, depth * tree_view->priv->tab_offset + width));
else
gtk_tree_view_column_set_width (column, MAX (column->width, width));
}
_gtk_rbtree_node_set_height (tree, temp, max_height);
if (temp->children != NULL &&
gtk_tree_model_iter_children (tree_view->priv->model, &child, iter))
gtk_tree_view_calc_size (tree_view, temp->children, &child, depth + 1);
temp = _gtk_rbtree_next (tree, temp);
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
}
static gboolean
gtk_tree_view_discover_dirty_iter (GtkTreeView *tree_view,
GtkTreeIter *iter,
gint depth,
gint *height)
{
GtkCellRenderer *cell;
GtkTreeViewColumn *column;
GList *list;
gint i;
gint retval = FALSE;
gint tmpheight;
if (height)
*height = 0;
for (i = 0, list = tree_view->priv->columns; list; list = list->next, i++)
{
gint width;
column = list->data;
if (column->dirty == TRUE || column->column_type == GTK_TREE_VIEW_COLUMN_FIXED)
continue;
if (!column->visible)
continue;
cell = column->cell;
gtk_tree_view_column_set_cell_data (column, tree_view->priv->model, iter);
if (height)
{
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, &tmpheight);
*height = MAX (*height, tmpheight);
}
else
{
gtk_cell_renderer_get_size (cell, GTK_WIDGET (tree_view), &width, NULL);
}
if (i == tree_view->priv->expander_column &&
TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
if (depth * tree_view->priv->tab_offset + width > column->width)
{
column->dirty = TRUE;
retval = TRUE;
}
}
else
{
if (width > column->width)
{
column->dirty = TRUE;
retval = TRUE;
}
}
}
return retval;
}
static void
gtk_tree_view_discover_dirty (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkTreeIter *iter,
gint depth)
{
GtkRBNode *temp = tree->root;
GtkTreeViewColumn *column;
GList *list;
GtkTreeIter child;
gboolean is_all_dirty;
TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
while (temp->left != tree->nil)
temp = temp->left;
do
{
is_all_dirty = TRUE;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->dirty == FALSE)
{
is_all_dirty = FALSE;
break;
}
}
if (is_all_dirty)
return;
gtk_tree_view_discover_dirty_iter (tree_view,
iter,
depth,
FALSE);
if (gtk_tree_model_iter_children (tree_view->priv->model, &child, iter) &&
temp->children != NULL)
gtk_tree_view_discover_dirty (tree_view, temp->children, &child, depth + 1);
temp = _gtk_rbtree_next (tree, temp);
}
while (gtk_tree_model_iter_next (tree_view->priv->model, iter));
}
static void
gtk_tree_view_check_dirty (GtkTreeView *tree_view)
{
GtkTreePath *path;
gboolean dirty = FALSE;
GList *list;
GtkTreeViewColumn *column;
GtkTreeIter iter;
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->dirty)
{
dirty = TRUE;
if (column->column_type == GTK_TREE_VIEW_COLUMN_AUTOSIZE)
{
gtk_tree_view_column_set_width (column, MAX (column->button->requisition.width, 1));
}
}
}
if (dirty == FALSE)
return;
path = gtk_tree_path_new_root ();
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
{
gtk_tree_view_calc_size (tree_view, tree_view->priv->tree, &iter, 1);
_gtk_tree_view_set_size (tree_view, -1, -1);
}
gtk_tree_path_free (path);
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
column->dirty = FALSE;
}
}
static void
gtk_tree_view_create_button (GtkTreeView *tree_view,
gint i)
{
GtkWidget *button;
GtkTreeViewColumn *column;
column = g_list_nth (tree_view->priv->columns, i)->data;
gtk_widget_push_composite_child ();
button = column->button = gtk_button_new ();
gtk_widget_pop_composite_child ();
gtk_widget_set_parent (button, GTK_WIDGET (tree_view));
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gtk_tree_view_button_clicked,
(gpointer) tree_view);
gtk_widget_show (button);
}
static void
gtk_tree_view_create_buttons (GtkTreeView *tree_view)
{
GtkWidget *alignment;
GtkWidget *label;
GList *list;
GtkTreeViewColumn *column;
gint i;
for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
{
column = list->data;
if (column->button != NULL)
continue;
gtk_tree_view_create_button (tree_view, i);
switch (column->justification)
{
case GTK_JUSTIFY_LEFT:
alignment = gtk_alignment_new (0.0, 0.5, 0.0, 0.0);
break;
case GTK_JUSTIFY_RIGHT:
alignment = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
break;
case GTK_JUSTIFY_CENTER:
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
break;
case GTK_JUSTIFY_FILL:
default:
alignment = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
break;
}
if (column->child)
label = column->child;
else
{
label = gtk_label_new (column->title);
gtk_widget_show (label);
}
gtk_container_add (GTK_CONTAINER (alignment), label);
gtk_container_add (GTK_CONTAINER (column->button), alignment);
gtk_widget_show (alignment);
}
gtk_tree_view_size_request_buttons (tree_view);
if (GTK_WIDGET_REALIZED (tree_view))
gtk_tree_view_realize_buttons (tree_view);
if (GTK_WIDGET_MAPPED (tree_view))
gtk_tree_view_map_buttons (tree_view);
}
static void
gtk_tree_view_button_clicked (GtkWidget *widget,
gpointer data)
{
GList *list;
GtkTreeView *tree_view;
g_return_if_fail (widget != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (data));
tree_view = GTK_TREE_VIEW (data);
/* find the column whose button was pressed */
for (list = tree_view->priv->columns; list; list = list->next)
if (GTK_TREE_VIEW_COLUMN (list->data)->button == widget)
break;
if (list)
gtk_tree_view_column_clicked (GTK_TREE_VIEW_COLUMN (list->data));
}
/* Make sure the node is visible vertically */
static void
gtk_tree_view_clamp_node_visible (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node)
{
gint offset;
offset = _gtk_rbtree_node_find_offset (tree, node);
/* we reverse the order, b/c in the unusual case of the
* node's height being taller then the visible area, we'd rather
* have the node flush to the top
*/
if (offset + GTK_RBNODE_GET_HEIGHT (node) >
tree_view->priv->vadjustment->value + tree_view->priv->vadjustment->page_size)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
offset + GTK_RBNODE_GET_HEIGHT (node) -
tree_view->priv->vadjustment->page_size);
if (offset < tree_view->priv->vadjustment->value)
gtk_adjustment_set_value (GTK_ADJUSTMENT (tree_view->priv->vadjustment),
offset);
}
/* This function could be more efficient.
* I'll optimize it if profiling seems to imply that
* it's 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 whether or not it's a parent, or not */
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;
do
{
if (tmptree == NULL)
{
*node = tmpnode;
*tree = tmptree;
return TRUE;
}
tmpnode = _gtk_rbtree_find_count (tmptree, indices[i] + 1);
if (++i >= depth)
{
*node = tmpnode;
*tree = tmptree;
return FALSE;
}
tmptree = tmpnode->children;
}
while (1);
}
static void
gtk_tree_view_get_arrow_range (GtkTreeView *tree_view,
gint *x1,
gint *x2)
{
gint x_offset = 0;
GList *list;
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
gint i;
i = 0;
total_width = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
tmp_column = list->data;
if (i == tree_view->priv->expander_column)
{
x_offset = total_width;
break;
}
if (tmp_column->visible)
total_width += tmp_column->width;
++i;
}
if (x1)
*x1 = x_offset;
if (tmp_column && tmp_column->visible)
{
/* +1 because x2 isn't included in the range. */
if (x2)
*x2 = x_offset + tree_view->priv->tab_offset + 1;
}
else
{
/* return an empty range, the expander column is hidden */
if (x2)
*x2 = x_offset;
}
}
static void
gtk_tree_view_queue_draw_node (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
GdkRectangle *clip_rect)
{
GdkRectangle rect;
rect.x = 0;
rect.width = tree_view->priv->width;
rect.y = _gtk_rbtree_node_find_offset (tree, node) +
TREE_VIEW_VERTICAL_SEPARATOR/2 +
TREE_VIEW_HEADER_HEIGHT (tree_view);
rect.height = GTK_RBNODE_GET_HEIGHT (node) + TREE_VIEW_VERTICAL_SEPARATOR;
if (clip_rect)
{
GdkRectangle new_rect;
gdk_rectangle_intersect (clip_rect, &rect, &new_rect);
gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
new_rect.x, new_rect.y,
new_rect.width, new_rect.height);
}
else
{
gtk_widget_queue_draw_area (GTK_WIDGET (tree_view),
rect.x, rect.y,
rect.width, rect.height);
}
}
/* x and y are the mouse position
*/
static void
gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
GtkRBTree *tree,
GtkRBNode *node,
gint x,
gint y)
{
GdkRectangle area;
GtkStateType state;
GtkWidget *widget;
gint x_offset = 0;
gint y_offset = 0;
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
return;
widget = GTK_WIDGET (tree_view);
y_offset = _gtk_rbtree_node_find_offset (tree, node) + TREE_VIEW_HEADER_HEIGHT (tree_view);
gtk_tree_view_get_arrow_range (tree_view, &x_offset, NULL);
area.x = x_offset;
area.y = y_offset + TREE_VIEW_VERTICAL_SEPARATOR;
area.width = tree_view->priv->tab_offset - 2;
area.height = GTK_RBNODE_GET_HEIGHT (node) - TREE_VIEW_VERTICAL_SEPARATOR;
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
{
state = (node==tree_view->priv->prelight_node&&GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT)?GTK_STATE_PRELIGHT:GTK_STATE_NORMAL);
}
/* FIXME expander size should come from a style property */
#define EXPANDER_SIZE 8
gtk_paint_expander (widget->style,
tree_view->priv->bin_window,
state,
&area,
widget,
"treeview",
area.x,
(area.y + (area.height - EXPANDER_SIZE) / 2 - (area.height + 1) % 2),
node->children != NULL);
#undef EXPANDER_SIZE
}
void
_gtk_tree_view_set_size (GtkTreeView *tree_view,
gint width,
gint height)
{
GList *list;
GtkTreeViewColumn *column;
gint i;
if (width == tree_view->priv->width &&
height == tree_view->priv->height)
return;
if (tree_view->priv->model == NULL)
{
tree_view->priv->width = width;
tree_view->priv->height = height;
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return;
}
if (width == -1)
{
width = 0;
for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
{
column = list->data;
if (!column->visible)
continue;
width += TREE_VIEW_COLUMN_WIDTH (column);
}
}
if (height == -1)
height = tree_view->priv->tree->root->offset + TREE_VIEW_VERTICAL_SEPARATOR;
tree_view->priv->width = width;
tree_view->priv->height = height;
if (tree_view->priv->hadjustment->upper != tree_view->priv->width)
{
tree_view->priv->hadjustment->upper = tree_view->priv->width;
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->hadjustment), "changed");
}
if (tree_view->priv->vadjustment->upper != tree_view->priv->height)
{
tree_view->priv->vadjustment->upper = tree_view->priv->height;
gtk_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
}
if (GTK_WIDGET_REALIZED (tree_view))
{
gdk_window_resize (tree_view->priv->bin_window, MAX (width, GTK_WIDGET (tree_view)->allocation.width), height + TREE_VIEW_HEADER_HEIGHT (tree_view));
gdk_window_resize (tree_view->priv->header_window, MAX (width, GTK_WIDGET (tree_view)->allocation.width), tree_view->priv->header_height);
}
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/* 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)
{
GtkTreeViewColumn *column;
gint width;
/* first translate the x position from widget->window
* to clist->clist_window
*/
column = g_list_nth (tree_view->priv->columns, i)->data;
width = *x - column->button->allocation.x;
/* Clamp down the value */
if (column->min_width == -1)
width = MAX (column->button->requisition.width,
width);
else
width = MAX (column->min_width,
width);
if (column->max_width != -1)
width = MIN (width, column->max_width != -1);
*x = column->button->allocation.x + width;
return width;
}
/* Callbacks */
static void
gtk_tree_view_adjustment_changed (GtkAdjustment *adjustment,
GtkTreeView *tree_view)
{
if (GTK_WIDGET_REALIZED (tree_view))
{
gdk_window_move (tree_view->priv->bin_window,
- tree_view->priv->hadjustment->value,
- tree_view->priv->vadjustment->value);
gdk_window_move (tree_view->priv->header_window,
- tree_view->priv->hadjustment->value,
0);
gdk_window_process_updates (tree_view->priv->bin_window, TRUE);
gdk_window_process_updates (tree_view->priv->header_window, TRUE);
}
}
/* Public methods
*/
/**
* gtk_tree_view_new:
*
* Creates a new #GtkTreeView widget.
*
* Return value: A newly created #GtkTreeView widget.
**/
GtkWidget *
gtk_tree_view_new (void)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (gtk_type_new (gtk_tree_view_get_type ()));
return GTK_WIDGET (tree_view);
}
/**
* 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)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (gtk_type_new (gtk_tree_view_get_type ()));
gtk_tree_view_set_model (tree_view, model);
return GTK_WIDGET (tree_view);
}
/**
* gtk_tree_view_get_model:
* @tree_view: a #GtkTreeView
*
* Returns the model the the #GtkTreeView is based on. Returns NULL if the
* model is unset.
*
* Return value: A #GtkTreeModel, or NULL if none is currently being used.
**/
GtkTreeModel *
gtk_tree_view_get_model (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
return tree_view->priv->model;
}
static void
gtk_tree_view_setup_model (GtkTreeView *tree_view)
{
GtkTreePath *path;
GtkTreeIter iter;
tree_view->priv->tree = _gtk_rbtree_new ();
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"changed",
gtk_tree_view_changed,
tree_view);
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"inserted",
gtk_tree_view_inserted,
tree_view);
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"child_toggled",
gtk_tree_view_child_toggled,
tree_view);
gtk_signal_connect (GTK_OBJECT (tree_view->priv->model),
"deleted",
gtk_tree_view_deleted,
tree_view);
if (tree_view->priv->columns == NULL)
return;
path = gtk_tree_path_new_root ();
if (gtk_tree_model_get_iter (tree_view->priv->model, &iter, path))
{
gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE, GTK_WIDGET_REALIZED (tree_view));
}
gtk_tree_path_free (path);
gtk_tree_view_create_buttons (tree_view);
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_MODEL_SETUP);
}
/**
* gtk_tree_view_set_model:
* @tree_view: A #GtkTreeNode.
* @model: 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 (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->model != NULL)
{
/* No longer do this. */
#if 0
for (list = tree_view->priv->columns; list; list = list->next)
{
column = list->data;
if (column->button)
{
gtk_widget_unparent (column->button);
gdk_window_set_user_data (column->window, NULL);
gdk_window_destroy (column->window);
}
}
#endif
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_MODEL_SETUP))
{
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_changed,
tree_view);
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_inserted,
tree_view);
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_child_toggled,
tree_view);
gtk_signal_disconnect_by_func (GTK_OBJECT (tree_view->priv->model),
gtk_tree_view_deleted,
tree_view);
_gtk_rbtree_free (tree_view->priv->tree);
}
#if 0
g_list_free (tree_view->priv->columns);
tree_view->priv->columns = NULL;
#endif
if (tree_view->priv->drag_dest_row)
gtk_tree_path_free (tree_view->priv->drag_dest_row);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_MODEL_SETUP);
}
tree_view->priv->model = model;
if (model == NULL)
{
tree_view->priv->tree = NULL;
if (GTK_WIDGET_REALIZED (tree_view))
_gtk_tree_view_set_size (tree_view, 0, 0);
return;
}
else if (GTK_WIDGET_REALIZED (tree_view))
{
gtk_tree_view_setup_model (tree_view);
_gtk_tree_view_set_size (tree_view, -1, -1);
}
}
/**
* gtk_tree_view_get_selection:
* @tree_view: A #GtkTreeView.
*
* Gets the #GtkTreeSelection associated with @tree_view.
*
* Return value: A #GtkTreeSelection object.
**/
GtkTreeSelection *
gtk_tree_view_get_selection (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->selection == NULL)
tree_view->priv->selection =
_gtk_tree_selection_new_with_tree_view (tree_view);
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: A #GtkAdjustment object, or NULL if none is currently being
* used.
**/
GtkAdjustment *
gtk_tree_view_get_hadjustment (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->hadjustment == NULL)
gtk_tree_view_set_hadjustment (tree_view, NULL);
return tree_view->priv->hadjustment;
}
/**
* gtk_tree_view_set_hadjustment:
* @tree_view: A #GtkTreeView
* @adjustment: The #GtkAdjustment to set, or NULL
*
* Sets the #GtkAdjustment for the current horizontal aspect.
**/
void
gtk_tree_view_set_hadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_set_adjustments (tree_view,
adjustment,
tree_view->priv->vadjustment);
}
/**
* gtk_tree_view_get_vadjustment:
* @tree_view: A #GtkTreeView
*
* Gets the #GtkAdjustment currently being used for the vertical aspect.
*
* Return value: A #GtkAdjustment object, or NULL if none is currently being
* used.
**/
GtkAdjustment *
gtk_tree_view_get_vadjustment (GtkTreeView *tree_view)
{
g_return_val_if_fail (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
if (tree_view->priv->vadjustment == NULL)
gtk_tree_view_set_vadjustment (tree_view, NULL);
return tree_view->priv->vadjustment;
}
/**
* gtk_tree_view_set_vadjustment:
* @tree_view: A #GtkTreeView
* @adjustment: The #GtkAdjustment to set, or NULL
*
* Sets the #GtkAdjustment for the current vertical aspect.
**/
void
gtk_tree_view_set_vadjustment (GtkTreeView *tree_view,
GtkAdjustment *adjustment)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_tree_view_set_adjustments (tree_view,
tree_view->priv->hadjustment,
adjustment);
}
/**
* gtk_tree_view_set_adjustments:
* @tree_view: A #GtkTreeView
* @hadj: The horizontal #GtkAdjustment to set, or NULL
* @vadj: The vertical #GtkAdjustment to set, or NULL
*
* Sets the horizonal and or vertical #GtkAdjustment.
**/
static void
gtk_tree_view_set_adjustments (GtkTreeView *tree_view,
GtkAdjustment *hadj,
GtkAdjustment *vadj)
{
gboolean need_adjust = FALSE;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (hadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (hadj));
else
hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (vadj)
g_return_if_fail (GTK_IS_ADJUSTMENT (vadj));
else
vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (tree_view->priv->hadjustment && (tree_view->priv->hadjustment != hadj))
{
gtk_signal_disconnect_by_data (GTK_OBJECT (tree_view->priv->hadjustment), tree_view);
gtk_object_unref (GTK_OBJECT (tree_view->priv->hadjustment));
}
if (tree_view->priv->vadjustment && (tree_view->priv->vadjustment != vadj))
{
gtk_signal_disconnect_by_data (GTK_OBJECT (tree_view->priv->vadjustment), tree_view);
gtk_object_unref (GTK_OBJECT (tree_view->priv->vadjustment));
}
if (tree_view->priv->hadjustment != hadj)
{
tree_view->priv->hadjustment = hadj;
gtk_object_ref (GTK_OBJECT (tree_view->priv->hadjustment));
gtk_object_sink (GTK_OBJECT (tree_view->priv->hadjustment));
gtk_signal_connect (GTK_OBJECT (tree_view->priv->hadjustment), "value_changed",
(GtkSignalFunc) gtk_tree_view_adjustment_changed,
tree_view);
need_adjust = TRUE;
}
if (tree_view->priv->vadjustment != vadj)
{
tree_view->priv->vadjustment = vadj;
gtk_object_ref (GTK_OBJECT (tree_view->priv->vadjustment));
gtk_object_sink (GTK_OBJECT (tree_view->priv->vadjustment));
gtk_signal_connect (GTK_OBJECT (tree_view->priv->vadjustment), "value_changed",
(GtkSignalFunc) gtk_tree_view_adjustment_changed,
tree_view);
need_adjust = TRUE;
}
if (need_adjust)
gtk_tree_view_adjustment_changed (NULL, tree_view);
}
/* 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 (tree_view != NULL, FALSE);
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 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;
g_return_if_fail (tree_view != NULL);
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_REALIZED (tree_view))
{
gdk_window_get_position (tree_view->priv->bin_window, &x, &y);
if (headers_visible)
{
gdk_window_move_resize (tree_view->priv->bin_window, x, y, tree_view->priv->width, tree_view->priv->height + TREE_VIEW_HEADER_HEIGHT (tree_view));
if (GTK_WIDGET_MAPPED (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);
}
}
tree_view->priv->vadjustment->page_size = GTK_WIDGET (tree_view)->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
tree_view->priv->vadjustment->page_increment = (GTK_WIDGET (tree_view)->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_signal_emit_by_name (GTK_OBJECT (tree_view->priv->vadjustment), "changed");
gtk_widget_queue_resize (GTK_WIDGET (tree_view));
}
/**
* gtk_tree_view_columns_autosize:
* @tree_view: A #GtkTreeView.
*
* Resizes all columns to their optimal width.
**/
void
gtk_tree_view_columns_autosize (GtkTreeView *tree_view)
{
gboolean dirty = FALSE;
GList *list;
GtkTreeViewColumn *column;
g_return_if_fail (tree_view != NULL);
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;
column->dirty = 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 (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->model != NULL);
for (list = tree_view->priv->columns; list; list = list->next)
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (list->data), setting);
}
/**
* gtk_tree_view_append_column:
* @tree_view: A #GtkTreeView.
* @column: The #GtkTreeViewColumn to add.
*
* Appends @column to the list of columns.
*
* 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 (tree_view != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (column != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == NULL, -1);
g_object_ref (G_OBJECT (column));
gtk_object_sink (GTK_OBJECT (column));
tree_view->priv->columns = g_list_append (tree_view->priv->columns, column);
column->tree_view = GTK_WIDGET (tree_view);
tree_view->priv->n_columns++;
/* FIXME create header for the new column! */
return tree_view->priv->n_columns;
}
/**
* 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 (tree_view != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (column != NULL, -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);
tree_view->priv->columns = g_list_remove (tree_view->priv->columns,
column);
column->tree_view = NULL;
g_object_unref (G_OBJECT (column));
tree_view->priv->n_columns--;
/* FIXME destroy header for the column! */
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.
*
* 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 (tree_view != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
g_return_val_if_fail (column != NULL, -1);
g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN (column), -1);
g_return_val_if_fail (column->tree_view == NULL, -1);
g_object_ref (G_OBJECT (column));
gtk_object_sink (GTK_OBJECT (column));
tree_view->priv->columns = g_list_insert (tree_view->priv->columns,
column, position);
column->tree_view = GTK_WIDGET (tree_view);
tree_view->priv->n_columns++;
/* FIXME create header for the column! */
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: 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 (tree_view != NULL, NULL);
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), NULL);
g_return_val_if_fail (tree_view->priv->model != NULL, 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);
}
void
gtk_tree_view_set_expander_column (GtkTreeView *tree_view,
gint col)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->expander_column != col)
{
tree_view->priv->expander_column = col;
/* g_object_notify (G_OBJECT (tree_view), "expander_column"); */
}
}
gint
gtk_tree_view_get_expander_column (GtkTreeView *tree_view)
{
g_return_val_if_fail (GTK_IS_TREE_VIEW (tree_view), -1);
return tree_view->priv->expander_column;
}
/**
* gtk_tree_view_scroll_to_point:
* @tree_view: a #GtkTreeView
* @tree_x: X coordinate of new top-left pixel of visible area
* @tree_y: Y coordinate of new top-left pixel of visible area
*
* 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 window coordinates. The @tree_view must be realized before
* this function is called. If it isn't, you probably want ot be
* using gtk_tree_view_scroll_to_cell.
**/
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_REALIZED (tree_view));
hadj = tree_view->priv->hadjustment;
vadj = tree_view->priv->vadjustment;
gtk_adjustment_set_value (hadj, CLAMP (tree_x, hadj->lower, hadj->upper));
gtk_adjustment_set_value (vadj, CLAMP (tree_y, vadj->lower, vadj->upper));
}
/**
* gtk_tree_view_scroll_to_cell
* @tree_view: A #GtkTreeView.
* @path: The path of the row to move to.
* @column: The #GtkTreeViewColumn to move horizontally to.
* @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. @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.
**/
void
gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
gfloat row_align,
gfloat col_align)
{
GdkRectangle cell_rect;
GdkRectangle vis_rect;
gint dest_x, dest_y;
/* FIXME work on unmapped/unrealized trees? maybe implement when
* we do incremental reflow for trees
*/
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (row_align >= 0.0);
g_return_if_fail (row_align <= 1.0);
g_return_if_fail (col_align >= 0.0);
g_return_if_fail (col_align <= 1.0);
g_return_if_fail (path != NULL || column != NULL);
row_align = CLAMP (row_align, 0.0, 1.0);
col_align = CLAMP (col_align, 0.0, 1.0);
if (! GTK_WIDGET_REALIZED (tree_view))
{
if (path)
tree_view->priv->scroll_to_path = gtk_tree_path_copy (path);
if (column)
tree_view->priv->scroll_to_column = column;
tree_view->priv->scroll_to_row_align = row_align;
tree_view->priv->scroll_to_col_align = col_align;
return;
}
gtk_tree_view_get_cell_rect (tree_view, path, column, &cell_rect);
gtk_tree_view_get_visible_rect (tree_view, &vis_rect);
dest_x = vis_rect.x;
dest_y = vis_rect.y;
if (path)
{
dest_x = cell_rect.x +
cell_rect.width * row_align -
vis_rect.width * row_align;
}
if (column)
{
dest_y = cell_rect.y +
cell_rect.height * col_align -
vis_rect.height * col_align;
}
gtk_tree_view_scroll_to_point (tree_view, dest_x, dest_y);
}
/**
* gtk_tree_view_get_path_at_pos:
* @tree_view: A #GtkTreeView.
* @window: The #GdkWindow to check against.
* @x: The x position to be identified.
* @y: The y position to be identified.
* @path: A pointer to a #GtkTreePath pointer to be filled in, or %NULL
* @column: A pointer to a #GtkTreeViewColumn pointer to be filled in, or %NULL
* @cell_x: A pointer where the X coordinate relative to the cell can be placed, or %NULL
* @cell_y: 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 @window. If @window is
* NULL, then the point is found relative to the widget coordinates. This
* function is expected to be called after an event, with event->window being
* passed in as @window. 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.
*
* Return value: TRUE if a row exists at that coordinate.
**/
gboolean
gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view,
GdkWindow *window,
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);
g_return_val_if_fail (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
if (window)
g_return_val_if_fail (window == tree_view->priv->bin_window, FALSE);
if (path)
*path = NULL;
if (column)
*column = NULL;
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;
for (list = tree_view->priv->columns; list; list = 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)
{
if (column)
*column = last_column;
if (cell_x)
*cell_x = last_column->width + remaining_x;
}
}
if (window)
{
y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree,
y - TREE_VIEW_HEADER_HEIGHT (tree_view),
&tree, &node);
}
else
{
if (y < TREE_VIEW_HEADER_HEIGHT (tree_view))
return FALSE;
y_offset = _gtk_rbtree_find_offset (tree_view->priv->tree, y - TREE_VIEW_HEADER_HEIGHT (tree_view) +
tree_view->priv->vadjustment->value,
&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_rect:
* @tree_view: a #GtkTreeView
* @path: a #GtkTreePath for the row, or %NULL to get only horizontal coordinates
* @column: a #GtkTreeViewColumn for the column, or %NULL to get only vertical coordiantes
* @rect: rectangle to fill with cell rect
*
* Fills the bounding rectangle in tree window coordinates for the cell
* at the row specified by @path and the column specified by @column.
* If @path is %NULL, 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.
*
**/
void
gtk_tree_view_get_cell_rect (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GdkRectangle *rect)
{
GtkTreeViewColumn *tmp_column = NULL;
gint total_width;
GList *list;
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 */
_gtk_tree_view_find_node (tree_view, path, &tree, &node);
if (tree == NULL)
{
g_warning (G_STRLOC": no row corresponding to path");
return;
}
rect->y = _gtk_rbtree_node_find_offset (tree, node) + TREE_VIEW_HEADER_HEIGHT (tree_view);
rect->height = GTK_RBNODE_GET_HEIGHT (node);
}
if (column && column->visible)
{
total_width = 0;
for (list = tree_view->priv->columns; list; list = list->next)
{
tmp_column = list->data;
if (tmp_column == column)
{
rect->x = total_width;
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;
}
rect->width = column->width;
}
}
static void
gtk_tree_view_expand_all_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
GtkTreeView *tree_view = data;
if (node->children)
_gtk_rbtree_traverse (node->children,
node->children->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_helper,
data);
else if ((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT && node->children == NULL)
{
GtkTreePath *path;
GtkTreeIter iter;
GtkTreeIter child;
node->children = _gtk_rbtree_new ();
node->children->parent_tree = tree;
node->children->parent_node = node;
path = _gtk_tree_view_find_path (tree_view, tree, node);
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter);
gtk_tree_view_build_tree (tree_view,
node->children,
&child,
gtk_tree_path_get_depth (path) + 1,
TRUE,
GTK_WIDGET_REALIZED (tree_view));
gtk_tree_path_free (path);
}
}
/**
* 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)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->tree != NULL);
_gtk_rbtree_traverse (tree_view->priv->tree,
tree_view->priv->tree->root,
G_PRE_ORDER,
gtk_tree_view_expand_all_helper,
tree_view);
_gtk_tree_view_set_size (tree_view, -1,-1);
}
static void
gtk_tree_view_collapse_all_helper (GtkRBTree *tree,
GtkRBNode *node,
gpointer data)
{
if (node->children)
{
GtkTreePath *path;
GtkTreeIter iter;
path = _gtk_tree_view_find_path (GTK_TREE_VIEW (data),
node->children,
node->children->root);
gtk_tree_model_get_iter (GTK_TREE_VIEW (data)->priv->model,
&iter,
path);
gtk_tree_view_discover_dirty (GTK_TREE_VIEW (data),
node->children,
&iter,
gtk_tree_path_get_depth (path));
_gtk_rbtree_remove (node->children);
gtk_tree_path_free (path);
}
}
/**
* 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)
{
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
g_return_if_fail (tree_view->priv->tree != NULL);
_gtk_rbtree_traverse (tree_view->priv->tree,
tree_view->priv->tree->root,
G_PRE_ORDER,
gtk_tree_view_collapse_all_helper,
tree_view);
if (GTK_WIDGET_MAPPED (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
/* 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.
*/
/**
* 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)
{
GtkTreeIter iter;
GtkTreeIter child;
GtkRBTree *tree;
GtkRBNode *node;
g_return_val_if_fail (tree_view != NULL, FALSE);
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 (node->children)
return TRUE;
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;
node->children = _gtk_rbtree_new ();
node->children->parent_tree = tree;
node->children->parent_node = node;
gtk_tree_model_iter_children (tree_view->priv->model, &child, &iter);
gtk_tree_view_build_tree (tree_view,
node->children,
&child,
gtk_tree_path_get_depth (path) + 1,
open_all,
GTK_WIDGET_REALIZED (tree_view));
if (GTK_WIDGET_MAPPED (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
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).
*
* Return value: %TRUE if the row was expanded
**/
gboolean
gtk_tree_view_collapse_row (GtkTreeView *tree_view,
GtkTreePath *path)
{
GtkRBTree *tree;
GtkRBNode *node;
GtkTreeIter iter;
g_return_val_if_fail (tree_view != NULL, FALSE);
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 (node->children == NULL)
return FALSE;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_view_discover_dirty (tree_view,
node->children,
&iter,
gtk_tree_path_get_depth (path));
_gtk_rbtree_remove (node->children);
if (GTK_WIDGET_MAPPED (tree_view))
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
return TRUE;
}
/**
* 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 widget coordinates with
* gtk_tree_view_tree_to_widget_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)
{
GtkWidget *widget;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
widget = GTK_WIDGET (tree_view);
if (visible_rect)
{
visible_rect->x = tree_view->priv->hadjustment->value;
visible_rect->y = tree_view->priv->vadjustment->value;
visible_rect->width = widget->allocation.width;
visible_rect->height = widget->allocation.height - TREE_VIEW_HEADER_HEIGHT (tree_view);
}
}
/**
* gtk_tree_view_widget_to_tree_coords:
* @tree_view: a #GtkTreeView
* @wx: widget X coordinate
* @wy: widget Y coordinate
* @tx: return location for tree X coordinate
* @ty: return location for tree Y coordinate
*
* Converts widget coordinates to coordinates for the
* tree window (the full scrollable area of the tree).
*
**/
void
gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
gint wx,
gint wy,
gint *tx,
gint *ty)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tx)
{
*tx = wx + tree_view->priv->hadjustment->value;
}
if (ty)
{
*ty = wy - TREE_VIEW_HEADER_HEIGHT (tree_view) +
tree_view->priv->vadjustment->value;
}
}
/**
* gtk_tree_view_tree_to_widget_coords:
* @tree_view: a #GtkTreeView
* @tx: tree X coordinate
* @ty: tree Y coordinate
* @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.
*
**/
void
gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
gint tx,
gint ty,
gint *wx,
gint *wy)
{
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (wx)
{
*wx = tx - tree_view->priv->hadjustment->value;
}
if (wy)
{
*wy = ty + TREE_VIEW_HEADER_HEIGHT (tree_view) -
tree_view->priv->vadjustment->value;
}
}
/* Drag-and-drop */
typedef struct _TreeViewDragInfo TreeViewDragInfo;
struct _TreeViewDragInfo
{
GdkModifierType start_button_mask;
GtkTargetList *source_target_list;
GdkDragAction source_actions;
GClosure *row_draggable_closure;
GtkTreePath *source_row;
GtkTargetList *dest_target_list;
GClosure *location_droppable_closure;
guint source_set : 1;
guint dest_set : 1;
};
static TreeViewDragInfo*
get_info (GtkTreeView *tree_view)
{
return g_object_get_data (G_OBJECT (tree_view), "gtk-tree-view-drag-info");
}
static void
clear_source_info (TreeViewDragInfo *di)
{
if (di->source_target_list)
gtk_target_list_unref (di->source_target_list);
if (di->row_draggable_closure)
g_closure_unref (di->row_draggable_closure);
if (di->source_row)
gtk_tree_path_free (di->source_row);
di->source_target_list = NULL;
di->row_draggable_closure = NULL;
di->source_row = NULL;
}
static void
clear_dest_info (TreeViewDragInfo *di)
{
if (di->location_droppable_closure)
g_closure_unref (di->location_droppable_closure);
if (di->dest_target_list)
gtk_target_list_unref (di->dest_target_list);
di->location_droppable_closure = NULL;
di->dest_target_list = NULL;
}
static void
destroy_info (TreeViewDragInfo *di)
{
clear_source_info (di);
clear_dest_info (di);
g_free (di);
}
static TreeViewDragInfo*
ensure_info (GtkTreeView *tree_view)
{
TreeViewDragInfo *di;
di = get_info (tree_view);
if (di == NULL)
{
di = g_new0 (TreeViewDragInfo, 1);
g_object_set_data_full (G_OBJECT (tree_view),
"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), "gtk-tree-view-drag-info", NULL);
}
#define SCROLL_EDGE_SIZE 15
static gint
drag_scan_timeout (gpointer data)
{
GtkTreeView *tree_view;
gint x, y;
GdkModifierType state;
GtkTreePath *path = NULL;
GtkTreeViewColumn *column = NULL;
GdkRectangle visible_rect;
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,
0.5, 0.5);
gtk_tree_path_free (path);
}
}
return TRUE;
}
static void
ensure_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout == 0)
tree_view->priv->scroll_timeout = gtk_timeout_add (50, drag_scan_timeout, tree_view);
}
static void
remove_scroll_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->scroll_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->scroll_timeout);
tree_view->priv->scroll_timeout = 0;
}
}
#ifdef __GNUC__
#warning "implement g_closure_sink"
#endif
#define g_closure_sink(c)
void
gtk_tree_view_set_rows_drag_source (GtkTreeView *tree_view,
GdkModifierType start_button_mask,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions,
GtkTreeViewDraggableFunc row_draggable_func,
gpointer user_data)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
di = ensure_info (tree_view);
clear_source_info (di);
di->start_button_mask = start_button_mask;
di->source_target_list = gtk_target_list_new (targets, n_targets);
di->source_actions = actions;
if (row_draggable_func)
{
di->row_draggable_closure = g_cclosure_new ((GCallback) row_draggable_func,
user_data, NULL);
g_closure_ref (di->row_draggable_closure);
g_closure_sink (di->row_draggable_closure);
}
di->source_set = TRUE;
}
void
gtk_tree_view_set_rows_drag_dest (GtkTreeView *tree_view,
const GtkTargetEntry *targets,
gint n_targets,
GdkDragAction actions,
GtkTreeViewDroppableFunc location_droppable_func,
gpointer user_data)
{
TreeViewDragInfo *di;
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
gtk_drag_dest_set (GTK_WIDGET (tree_view),
0,
NULL,
0,
actions);
di = ensure_info (tree_view);
clear_dest_info (di);
if (targets)
di->dest_target_list = gtk_target_list_new (targets, n_targets);
if (location_droppable_func)
{
di->location_droppable_closure = g_cclosure_new ((GCallback) location_droppable_func,
user_data, NULL);
g_closure_ref (di->location_droppable_closure);
g_closure_sink (di->location_droppable_closure);
}
di->dest_set = TRUE;
}
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)
{
clear_source_info (di);
di->source_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
}
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));
clear_dest_info (di);
di->dest_set = FALSE;
}
if (!di->dest_set && !di->source_set)
remove_info (tree_view);
}
}
void
gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewDropPosition pos)
{
/* 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));
if (tree_view->priv->drag_dest_row)
{
/* FIXME queue undraw on previous location */
gtk_tree_path_free (tree_view->priv->drag_dest_row);
}
tree_view->priv->drag_dest_pos = pos;
if (path)
tree_view->priv->drag_dest_row = gtk_tree_path_copy (path);
else
tree_view->priv->drag_dest_row = NULL;
/* FIXME this is crap, queue draw only on the newly-highlighted row */
gtk_widget_queue_draw (GTK_WIDGET (tree_view));
}
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;
gdouble offset_into_row;
gdouble quarter;
gint x, y;
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 (tree_view->priv->tree != NULL, FALSE);
g_return_val_if_fail (drag_x >= 0, FALSE);
g_return_val_if_fail (drag_y >= 0, FALSE);
g_return_val_if_fail (tree_view->priv->bin_window != NULL, FALSE);
if (path)
*path = NULL;
/* remember that drag_x and drag_y are in widget coords, convert to rbtree */
gtk_tree_view_widget_to_tree_coords (tree_view, drag_x, drag_y,
&x, &y);
/* If in the top quarter of a row, we drop before that row; if
* in the bottom quarter, drop after that row; if in the middle,
* and the row has children, drop into the row.
*/
if (!gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->bin_window,
x, y,
&tmp_path,
&column,
NULL,
&cell_y))
return FALSE;
gtk_tree_view_get_cell_rect (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;
quarter = cell.height / 4.0;
if (pos)
{
if (offset_into_row < quarter)
{
*pos = GTK_TREE_VIEW_DROP_BEFORE;
}
else if (offset_into_row < quarter * 2)
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_BEFORE;
}
else if (offset_into_row < quarter * 3)
{
*pos = GTK_TREE_VIEW_DROP_INTO_OR_AFTER;
}
else
{
*pos = GTK_TREE_VIEW_DROP_AFTER;
}
}
return TRUE;
}
gboolean
gtk_selection_data_set_tree_row (GtkSelectionData *selection_data,
GtkTreeView *tree_view,
GtkTreePath *path)
{
return FALSE;
}
gboolean
gtk_selection_data_get_tree_row (GtkSelectionData *selection_data,
GtkTreeView **tree_view,
GtkTreePath **path)
{
return FALSE;
}
static gboolean
gtk_tree_view_maybe_begin_dragging_row (GtkTreeView *tree_view,
GdkEventMotion *event)
{
GdkDragContext *context;
TreeViewDragInfo *di;
GtkTreePath *path = NULL;
gint button;
gint cell_x, cell_y;
di = get_info (tree_view);
if (di == NULL)
return FALSE;
if (tree_view->priv->pressed_button < 0)
return FALSE;
if (!gtk_drag_check_threshold (GTK_WIDGET (tree_view),
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
event->x, event->y))
return FALSE;
button = tree_view->priv->pressed_button;
tree_view->priv->pressed_button = -1;
gtk_tree_view_get_path_at_pos (tree_view,
tree_view->priv->bin_window,
tree_view->priv->press_start_x,
tree_view->priv->press_start_y,
&path,
NULL,
&cell_x,
&cell_y);
if (path == NULL)
return FALSE;
/* FIXME if the path doesn't match the row_draggable predicate,
* return FALSE and free path
*/
/* FIXME Check whether we're a start button, if not return FALSE and
* free path
*/
context = gtk_drag_begin (GTK_WIDGET (tree_view),
di->source_target_list,
di->source_actions,
button,
(GdkEvent*)event);
gtk_drag_set_icon_default (context);
{
GdkPixmap *row_pix;
row_pix = gtk_tree_view_create_row_drag_icon (tree_view,
path);
gtk_drag_set_icon_pixmap (context,
gdk_drawable_get_colormap (row_pix),
row_pix,
NULL,
/* the + 1 is for the black border in the icon */
tree_view->priv->press_start_x + 1,
cell_y + 1);
gdk_pixmap_unref (row_pix);
}
di->source_row = path;
return TRUE;
}
/* Default signal implementations for the drag signals */
static void
gtk_tree_view_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
/* do nothing */
}
static void
gtk_tree_view_drag_end (GtkWidget *widget,
GdkDragContext *context)
{
/* do nothing */
}
static void
gtk_tree_view_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (widget);
if (selection_data->target == gdk_atom_intern ("GTK_TREE_VIEW_ROW", FALSE))
{
TreeViewDragInfo *di;
di = get_info (GTK_TREE_VIEW (widget));
if (di == NULL)
{
/* There's a race where someone could have unset
* drag source before the data is requested
*/
return;
}
gtk_selection_data_set_tree_row (selection_data,
GTK_TREE_VIEW (widget),
di->source_row);
}
}
static void
gtk_tree_view_drag_data_delete (GtkWidget *widget,
GdkDragContext *context)
{
/* FIXME we need to delete the source_row if we're doing automagical
* reordering stuff.
*/
}
static void
remove_open_timeout (GtkTreeView *tree_view)
{
if (tree_view->priv->open_dest_timeout != 0)
{
gtk_timeout_remove (tree_view->priv->open_dest_timeout);
tree_view->priv->open_dest_timeout = 0;
}
}
static void
gtk_tree_view_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
TreeViewDragInfo *di;
di = get_info (GTK_TREE_VIEW (widget));
/* 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 gint
open_row_timeout (gpointer data)
{
GtkTreeView *tree_view = data;
if (tree_view->priv->drag_dest_row &&
(tree_view->priv->drag_dest_pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
tree_view->priv->drag_dest_pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE))
{
gtk_tree_view_expand_row (tree_view,
tree_view->priv->drag_dest_row,
FALSE);
tree_view->priv->open_dest_timeout = 0;
return FALSE;
}
else
return TRUE;
}
static gboolean
gtk_tree_view_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GtkTreePath *path = NULL;
TreeViewDragInfo *di;
GtkTreeViewDropPosition pos;
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (widget);
di = get_info (GTK_TREE_VIEW (widget));
if (di == NULL)
{
/* 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 */
}
ensure_scroll_timeout (tree_view);
if (!gtk_tree_view_get_dest_row_at_pos (tree_view,
x, y,
&path,
&pos))
{
/* can't drop here */
remove_open_timeout (tree_view);
gdk_drag_status (context, 0, time);
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
/* don't propagate to parent though */
return TRUE;
}
g_assert (path);
/* If we left the current row's "open" zone, unset the timeout for
* opening the row
*/
if (tree_view->priv->drag_dest_row &&
(gtk_tree_path_compare (path, tree_view->priv->drag_dest_row) != 0 ||
!(pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)))
remove_open_timeout (tree_view);
if (TRUE /* FIXME if the location droppable predicate */ &&
gtk_drag_dest_find_target (widget, context, di->dest_target_list) != GDK_NONE)
{
GtkWidget *source_widget;
GdkDragAction suggested_action;
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 alt 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);
if (tree_view->priv->open_dest_timeout == 0)
{
tree_view->priv->open_dest_timeout =
gtk_timeout_add (250, open_row_timeout, tree_view);
}
gdk_drag_status (context, suggested_action, time);
}
else
{
/* can't drop here */
remove_open_timeout (tree_view);
gdk_drag_status (context, 0, time);
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
}
gtk_tree_path_free (path);
return TRUE;
}
static gboolean
gtk_tree_view_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GdkAtom target = GDK_NONE;
TreeViewDragInfo *di;
GtkTreeView *tree_view;
tree_view = GTK_TREE_VIEW (widget);
remove_scroll_timeout (GTK_TREE_VIEW (widget));
remove_open_timeout (GTK_TREE_VIEW (widget));
di = get_info (tree_view);
if (di && tree_view->priv->drag_dest_row && di->dest_target_list)
target = gtk_drag_dest_find_target (widget, context, di->dest_target_list);
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,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
if (selection_data->length >= 0)
{
/* FIXME respond to contents of selection_data */
}
gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
NULL,
GTK_TREE_VIEW_DROP_BEFORE);
gtk_drag_finish (context,
(selection_data->length >= 0),
(context->action == GDK_ACTION_MOVE),
time);
}
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