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gtk2/gtk/gtktreeview.c
Havoc Pennington fde4fecfd2 Port to GObject, can go back in gdk-pixbuf after setting up a 
2000-12-16  Havoc Pennington  <hp@pobox.com>

* gtk/gdk-pixbuf-loader.h, gtk/gdk-pixbuf-loader.c:
Port to GObject, can go back in gdk-pixbuf after setting up
a gdk-pixbuf-marshal.h header over there.

* gtk/gtktreeview.c: s/SEPERATOR/SEPARATOR/g;
(gtk_tree_view_class_init): specify GTK_TYPE_ADJUSTMENT for signal
args
(gtk_tree_view_init): don't unset GTK_NO_WINDOW, it shouldn't be
set
(gtk_tree_view_realize_buttons): don't gtk_widget_show() buttons
here, do it when we create the buttons later
(gtk_tree_view_realize_buttons): add some g_return_if_fail
(gtk_tree_view_map): paranoia checks that column->button is shown
and unmapped
(gtk_tree_view_size_request): only request visible children.
Move header size calculation in here, for cleanliness, and
to maintain invariants for child widgets if we eventually
let users set different children inside the buttons
(gtk_tree_view_map_buttons): factor out code to map buttons,
since it was being called several times
(gtk_tree_view_size_allocate_buttons): move_resize the drag
windows instead of just moving them; their height may change
if we allow random widgets in there, or the theme changes.
(gtk_tree_view_size_allocate): move button size allocation
above emitting the scroll signals, to ensure a sane state when we
hit user code
(gtk_tree_view_button_release): remove queue_resize after
tree_view_set_size(), set_size() will handle any resize queuing
that's needed
(gtk_tree_view_focus_in): just queue a draw, don't fool with
draw_focus goo
(gtk_tree_view_focus): use gtk_get_current_event() and
gdk_event_get_state()
(gtk_tree_view_deleted): don't queue_resize() after calling set_size()
(gtk_tree_view_build_tree): fix a "if (foo); {}" bug - i.e. remove
semicolon
(gtk_tree_view_create_button): show the button here
(gtk_tree_view_button_clicked): actually emit the clicked signal
on the column
(_gtk_tree_view_set_size): return right away if the size is
unchanged, as a cheesy optimization
(gtk_tree_view_setup_model): rename set_model_realized to
setup_model to match the flag that indicates whether we've
called it
(gtk_tree_view_get_hadjustment): create adjustment if it doesn't
exist, because set_scroll_adjustment does that and it shouldn't
matter what order you call these in
(gtk_tree_view_get_vadjustment): ditto
(gtk_tree_view_set_headers_visible): canonicalize the bool,
for paranoia
(gtk_tree_view_set_headers_visible): call
gtk_tree_view_map_buttons() instead of using cut-and-paste code
(gtk_tree_view_append_column): clarify whether the return value
is the count of columns before or after, and do the increment
separately from the return statement so you can tell from the code.
(gtk_tree_view_remove_column): ditto
(gtk_tree_view_insert_column): ditto
(gtk_tree_view_get_column): remove g_return_if_fail for columns
outside the existing range, the docs say that outside-range
columns are allowed, so we handle them as documented. (Presumably
this allows a nice loop with column != NULL as test.)
(gtk_tree_view_move_to): document what 0.0, 0.5, 1.0 alignments
mean (left/right/center etc.).
(gtk_tree_view_collapse_all): only queue a draw if we're mapped
(gtk_tree_view_expand_row): add docs
(gtk_tree_view_collapse_row): add docs

* gtk/gtktreeviewcolumn.c (gtk_tree_view_column_clicked): new
function to emit the clicked signal on a column

* gdk/gdkevents.c (gdk_event_get_state): new function, to get the
state of an event
(gdk_event_get_time): don't treat GDK_SCROLL
as a button event, remove default case from switch so gcc
will whine if we don't explicitly handle all event types

* gtk/gtktreeselection.h: added some FIXME

* gtk/gtktreeprivate.h (struct _GtkTreeViewPrivate): rename
"columns" to "n_columns" and "column" to "columns" for clarity
2000-12-17 23:50:00 +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);
/* 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);
/* 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_draw_arrow (GtkTreeView *tree_view,
GtkRBNode *node,
gint offset,
gint x,
gint y);
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 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)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
object_class = (GtkObjectClass*) class;
widget_class = (GtkWidgetClass*) class;
container_class = (GtkContainerClass*) class;
parent_class = g_type_class_peek_parent (class);
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;
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->prelight_offset = 0;
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;
gtk_tree_view_set_adjustments (tree_view, NULL, NULL);
_gtk_tree_view_set_size (tree_view, 0, 0);
}
/* 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;
gtk_widget_set_parent_window (column->button,
tree_view->priv->header_window);
attr.x = (column->button->allocation.x + column->button->allocation.width) - 3;
g_return_if_fail (column->window == NULL);
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);
}
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);
/* 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_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);
column->size = MAX (column->size, 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->size;
width += column->size;
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");
}
/* 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;
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;
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);
/* 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;
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_SIZE (column);
if (i == 0 && 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;
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),
node,
event->area.y + y_offset,
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_SIZE (column);
}
if (node == cursor &&
GTK_WIDGET_HAS_FOCUS (widget))
gtk_tree_view_draw_focus (widget);
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
gtk_tree_view_motion (GtkWidget *widget,
GdkEventMotion *event)
{
GtkTreeView *tree_view;
GtkRBTree *tree;
GtkRBNode *node;
gint new_y;
gint y_offset;
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 (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_size (gtk_tree_view_get_column (GTK_TREE_VIEW (widget), tree_view->priv->drag_pos), new_width);
}
/* FIXME: 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;
if (tree_view->priv->prelight_node != NULL)
{
if ((((gint) event->y - TREE_VIEW_HEADER_HEIGHT (tree_view) < tree_view->priv->prelight_offset) ||
((gint) event->y - TREE_VIEW_HEADER_HEIGHT (tree_view) >=
(tree_view->priv->prelight_offset + GTK_RBNODE_GET_HEIGHT (tree_view->priv->prelight_node))) ||
((gint) event->x > tree_view->priv->tab_offset)))
/* We need to unprelight the old one. */
{
if (GTK_TREE_VIEW_FLAG_SET (tree_view, GTK_TREE_VIEW_ARROW_PRELIT))
{
GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node, GTK_RBNODE_IS_PRELIT);
gtk_tree_view_draw_arrow (GTK_TREE_VIEW (widget),
tree_view->priv->prelight_node,
tree_view->priv->prelight_offset,
event->x,
event->y);
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
}
GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node, GTK_RBNODE_IS_PRELIT);
tree_view->priv->prelight_node = NULL;
tree_view->priv->prelight_tree = NULL;
tree_view->priv->prelight_offset = 0;
}
}
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)
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 we want to prelight a tab? */
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
if (event->x <= tree_view->priv->tab_offset &&
event->x >= 0 &&
((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
{
tree_view->priv->prelight_offset = event->y+y_offset;
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
}
tree_view->priv->prelight_node = node;
tree_view->priv->prelight_tree = tree;
tree_view->priv->prelight_offset = event->y+y_offset;
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
/* FIXME */
gtk_widget_queue_draw (widget);
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;
gint y_offset;
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;
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)
return FALSE;
/* Do we want to prelight a tab? */
GTK_TREE_VIEW_UNSET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
if (event->x <= tree_view->priv->tab_offset &&
event->x >= 0 &&
((node->flags & GTK_RBNODE_IS_PARENT) == GTK_RBNODE_IS_PARENT))
{
tree_view->priv->prelight_offset = event->y+y_offset;
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
}
tree_view->priv->prelight_node = node;
tree_view->priv->prelight_tree = tree;
tree_view->priv->prelight_offset = event->y+y_offset;
GTK_RBNODE_SET_FLAG (node, GTK_RBNODE_IS_PRELIT);
/* FIXME */
gtk_widget_queue_draw (widget);
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);
if (tree_view->priv->prelight_node != NULL)
{
GTK_RBNODE_UNSET_FLAG (tree_view->priv->prelight_node, GTK_RBNODE_IS_PRELIT);
tree_view->priv->prelight_node = NULL;
tree_view->priv->prelight_tree = NULL;
tree_view->priv->prelight_offset = 0;
GTK_TREE_VIEW_SET_FLAG (tree_view, GTK_TREE_VIEW_ARROW_PRELIT);
/* FIXME */
gtk_widget_queue_draw (widget);
}
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 != FALSE && 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_node,
tree_view->priv->prelight_offset,
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_SIZE (column);
if (i == 0 && 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;
}
}
/* Handle the selection */
if (tree_view->priv->selection == NULL)
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 (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_size (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;
GtkRBTree *cursor_tree = NULL;
GtkRBNode *cursor = NULL;
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_find_node (tree_view, tree_view->priv->cursor, &cursor_tree, &cursor);
if (cursor == NULL)
return;
/* 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 (cursor_tree, cursor) + TREE_VIEW_HEADER_HEIGHT (tree_view),
(gint) MAX (tree_view->priv->width, tree_view->priv->hadjustment->upper),
GTK_RBNODE_GET_HEIGHT (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
*/
/* 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)
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 ();
if (tree_view->priv->cursor)
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)
gtk_tree_selection_new_with_tree_view (tree_view);
if (tree_view->priv->cursor == NULL)
tree_view->priv->cursor = gtk_tree_path_new_root ();
if (tree_view->priv->cursor)
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 ();
if (tree_view->priv->cursor)
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;
gboolean first = TRUE;
GList *list;
gint max_height = 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)
{
first = FALSE;;
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 (first == TRUE && TREE_VIEW_DRAW_EXPANDERS (tree_view))
column->size = MAX (column->size, depth * tree_view->priv->tab_offset + width);
else
column->size = MAX (column->size, width);
first = FALSE;
}
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 = tree->root;
GtkTreeIter child;
GtkCellRenderer *cell;
GList *list;
GtkTreeViewColumn *column;
gint max_height;
gint i;
TREE_VIEW_INTERNAL_ASSERT_VOID (tree != NULL);
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 == 0 && TREE_VIEW_DRAW_EXPANDERS (tree_view))
column->size = MAX (column->size, depth * tree_view->priv->tab_offset + width);
else
column->size = MAX (column->size, 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 == 0 && TREE_VIEW_DRAW_EXPANDERS (tree_view))
{
if (depth * tree_view->priv->tab_offset + width > column->size)
{
column->dirty = TRUE;
retval = TRUE;
}
}
else
{
if (width > column->size)
{
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;
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)
{
column->size = column->button->requisition.width;
}
}
}
if (dirty == FALSE)
return;
path = gtk_tree_path_new_root ();
if (path != NULL)
{
GtkTreeIter iter;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_path_free (path);
gtk_tree_view_calc_size (tree_view, tree_view->priv->tree, &iter, 1);
_gtk_tree_view_set_size (tree_view, -1, -1);
}
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;
GtkRequisition requisition;
GList *list;
GtkTreeViewColumn *column;
gint i;
for (list = tree_view->priv->columns, i = 0; list; list = list->next, i++)
{
column = list->data;
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;
}
label = gtk_label_new (column->title);
gtk_container_add (GTK_CONTAINER (alignment), label);
gtk_container_add (GTK_CONTAINER (column->button), alignment);
gtk_widget_show (label);
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);
}
/* x and y are the mouse position
*/
static void
gtk_tree_view_draw_arrow (GtkTreeView *tree_view,
GtkRBNode *node,
gint offset,
gint x,
gint y)
{
GdkRectangle area;
GtkStateType state;
GtkShadowType shadow;
GdkPoint points[3];
if (! GTK_RBNODE_FLAG_SET (node, GTK_RBNODE_IS_PARENT))
return;
area.x = 0;
area.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;
shadow = GTK_SHADOW_IN;
}
else
{
state = GTK_STATE_NORMAL;
shadow = GTK_SHADOW_OUT;
}
}
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);
shadow = GTK_SHADOW_OUT;
}
if (node->children == NULL)
{
points[0].x = area.x + 2;
points[0].y = area.y + (area.height - TREE_VIEW_EXPANDER_HEIGHT)/2;
points[1].x = points[0].x + TREE_VIEW_EXPANDER_WIDTH/2;
points[1].y = points[0].y + TREE_VIEW_EXPANDER_HEIGHT/2;
points[2].x = points[0].x;
points[2].y = points[0].y + TREE_VIEW_EXPANDER_HEIGHT;
}
else
{
points[0].x = area.x;
points[0].y = area.y + (area.height - TREE_VIEW_EXPANDER_WIDTH/2)/2;
points[1].x = points[0].x + TREE_VIEW_EXPANDER_WIDTH;
points[1].y = points[0].y;
points[2].x = points[0].x + (TREE_VIEW_EXPANDER_WIDTH) /2;
points[2].y = points[0].y + TREE_VIEW_EXPANDER_HEIGHT/2;
}
/* FIXME this should be in the theme engine */
gdk_draw_polygon (tree_view->priv->bin_window,
GTK_WIDGET (tree_view)->style->base_gc[state],
TRUE, points, 3);
gdk_draw_polygon (tree_view->priv->bin_window,
GTK_WIDGET (tree_view)->style->fg_gc[state],
FALSE, points, 3);
/* gtk_paint_arrow (GTK_WIDGET (tree_view)->style, */
/* tree_view->priv->bin_window, */
/* state, */
/* shadow, */
/* &area, */
/* GTK_WIDGET (tree_view), */
/* "GtkTreeView", */
/* arrow_dir, */
/* TRUE, */
/* area.x, area.y, */
/* area.width, area.height); */
}
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 = 1;
tree_view->priv->height = 1;
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_SIZE (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 (path == NULL)
return;
gtk_tree_model_get_iter (tree_view->priv->model, &iter, path);
gtk_tree_path_free (path);
gtk_tree_view_build_tree (tree_view, tree_view->priv->tree, &iter, 1, FALSE, GTK_WIDGET_REALIZED (tree_view));
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)
{
GList *list;
GtkTreeViewColumn *column;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
if (tree_view->priv->model != NULL)
{
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);
}
}
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);
}
g_list_free (tree_view->priv->columns);
tree_view->priv->columns = NULL;
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;
tree_view->priv->n_columns = 0;
tree_view->priv->columns = 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)
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));
}
/* FIXME let's rename this to be "interactive" or something,
* "active" is confusing since it also is a widget state
*/
/**
* gtk_tree_view_set_headers_active:
* @tree_view: A #GtkTreeView.
* @active: TRUE if the columns are active.
*
* Sets the headers active (eg. keyboard navigable) or inactive.
**/
void
gtk_tree_view_set_headers_active (GtkTreeView *tree_view,
gboolean active)
{
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_header_active (GTK_TREE_VIEW_COLUMN (list->data), active);
}
/**
* 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));
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));
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);
}
/**
* gtk_tree_view_move_to:
* @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 the first visible
* column is assumed, and the @tree_view is left justified. Likewise,
* if @path is NULL the first row is assumed, and the @tree_view is
* top justified. @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_move_to (GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
gfloat row_align,
gfloat col_align)
{
GtkRBNode *node = NULL;
GtkRBTree *tree = NULL;
g_return_if_fail (tree_view != NULL);
g_return_if_fail (GTK_IS_TREE_VIEW (tree_view));
row_align = CLAMP (row_align, 0, 1);
col_align = CLAMP (col_align, 0, 1);
if (path != NULL)
{
_gtk_tree_view_find_node (tree_view, path,
&tree, &node);
/* Should we justify it to the bottom? */
if (node == NULL)
return;
}
if (tree_view->priv->hadjustment && column >= 0)
{
/* FIXME -- write */
}
}
/**
* gtk_tree_view_get_path_at_pos:
* @tree_view: A #GtkTreeView.
* @window: The #GtkWindow 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
*
* 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.
*
* 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)
{
GtkRBTree *tree;
GtkRBNode *node;
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 (x >= 0, FALSE);
g_return_val_if_fail (y >= 0, 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 (column)
{
GtkTreeViewColumn *tmp_column;
GtkTreeViewColumn *last_column = NULL;
GList *list;
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 (x <= tmp_column->size)
{
*column = tmp_column;
break;
}
x -= tmp_column->size;
}
if (*column == NULL)
*column = last_column;
}
if (window)
{
_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;
_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 (path)
*path = _gtk_tree_view_find_path (tree_view, tree, node);
return TRUE;
}
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;
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;
}
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