gimp/app/widgets/gimpcontainericonview.c
bootchk 784cde7f14 Fix #10496 crash on RMB in chooser item not the current selection
Use g_signal_connect_object to ensure object passed to handler
is not destroyed in the middle of the handler by knock-on signal handling.

Note there are comments about this in gimpcontainertreeview.c line 1592.
And similar code i.e. calls to gimp_container_view_get_container
that seem to be intended to solve but might actually also be susceptible.
Those calls in icon view throw CRITICALs during this issue.
But testing of the tree view (a list instead of a grid)
doesn't seem to crash, so leave well enough alone.
2024-01-22 18:29:20 +00:00

894 lines
33 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontainericonview.c
* Copyright (C) 2010 Michael Natterer <mitch@gimp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpviewable.h"
#include "gimpcellrendererviewable.h"
#include "gimpcontainertreestore.h"
#include "gimpcontainericonview.h"
#include "gimpcontainerview.h"
#include "gimpdnd.h"
#include "gimpviewrenderer.h"
#include "gimpwidgets-utils.h"
struct _GimpContainerIconViewPrivate
{
GimpViewRenderer *dnd_renderer;
};
static void gimp_container_icon_view_view_iface_init (GimpContainerViewInterface *iface);
static void gimp_container_icon_view_constructed (GObject *object);
static void gimp_container_icon_view_finalize (GObject *object);
static void gimp_container_icon_view_unmap (GtkWidget *widget);
static gboolean gimp_container_icon_view_popup_menu (GtkWidget *widget);
static void gimp_container_icon_view_set_container (GimpContainerView *view,
GimpContainer *container);
static void gimp_container_icon_view_set_context (GimpContainerView *view,
GimpContext *context);
static void gimp_container_icon_view_set_selection_mode(GimpContainerView *view,
GtkSelectionMode mode);
static gpointer gimp_container_icon_view_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer parent_insert_data,
gint index);
static void gimp_container_icon_view_remove_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data);
static void gimp_container_icon_view_reorder_item (GimpContainerView *view,
GimpViewable *viewable,
gint new_index,
gpointer insert_data);
static void gimp_container_icon_view_rename_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data);
static gboolean gimp_container_icon_view_select_items (GimpContainerView *view,
GList *items,
GList *paths);
static void gimp_container_icon_view_clear_items (GimpContainerView *view);
static void gimp_container_icon_view_set_view_size (GimpContainerView *view);
static void gimp_container_icon_view_selection_changed (GtkIconView *view,
GimpContainerIconView *icon_view);
static void gimp_container_icon_view_item_activated (GtkIconView *view,
GtkTreePath *path,
GimpContainerIconView *icon_view);
static gboolean gimp_container_icon_view_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpContainerIconView *icon_view);
static gboolean gimp_container_icon_view_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tip,
GtkTooltip *tooltip,
GimpContainerIconView *icon_view);
static GimpViewable * gimp_container_icon_view_drag_viewable (GtkWidget *widget,
GimpContext **context,
gpointer data);
static GdkPixbuf * gimp_container_icon_view_drag_pixbuf (GtkWidget *widget,
gpointer data);
static gboolean gimp_container_icon_view_get_selected_single (GimpContainerIconView *icon_view,
GtkTreeIter *iter);
static gint gimp_container_icon_view_get_selected (GimpContainerView *view,
GList **items,
GList **paths);
G_DEFINE_TYPE_WITH_CODE (GimpContainerIconView, gimp_container_icon_view,
GIMP_TYPE_CONTAINER_BOX,
G_ADD_PRIVATE (GimpContainerIconView)
G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
gimp_container_icon_view_view_iface_init))
#define parent_class gimp_container_icon_view_parent_class
static GimpContainerViewInterface *parent_view_iface = NULL;
static void
gimp_container_icon_view_class_init (GimpContainerIconViewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->constructed = gimp_container_icon_view_constructed;
object_class->finalize = gimp_container_icon_view_finalize;
widget_class->unmap = gimp_container_icon_view_unmap;
widget_class->popup_menu = gimp_container_icon_view_popup_menu;
}
static void
gimp_container_icon_view_view_iface_init (GimpContainerViewInterface *iface)
{
parent_view_iface = g_type_interface_peek_parent (iface);
if (! parent_view_iface)
parent_view_iface = g_type_default_interface_peek (GIMP_TYPE_CONTAINER_VIEW);
iface->set_container = gimp_container_icon_view_set_container;
iface->set_context = gimp_container_icon_view_set_context;
iface->set_selection_mode = gimp_container_icon_view_set_selection_mode;
iface->insert_item = gimp_container_icon_view_insert_item;
iface->remove_item = gimp_container_icon_view_remove_item;
iface->reorder_item = gimp_container_icon_view_reorder_item;
iface->rename_item = gimp_container_icon_view_rename_item;
iface->select_items = gimp_container_icon_view_select_items;
iface->clear_items = gimp_container_icon_view_clear_items;
iface->set_view_size = gimp_container_icon_view_set_view_size;
iface->get_selected = gimp_container_icon_view_get_selected;
iface->insert_data_free = (GDestroyNotify) gtk_tree_iter_free;
}
static void
gimp_container_icon_view_init (GimpContainerIconView *icon_view)
{
GimpContainerBox *box = GIMP_CONTAINER_BOX (icon_view);
icon_view->priv = gimp_container_icon_view_get_instance_private (icon_view);
gimp_container_tree_store_columns_init (icon_view->model_columns,
&icon_view->n_model_columns);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (box->scrolled_win),
GTK_SHADOW_IN);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (box->scrolled_win),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
}
static void
gimp_container_icon_view_constructed (GObject *object)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (object);
GimpContainerView *view = GIMP_CONTAINER_VIEW (object);
GimpContainerBox *box = GIMP_CONTAINER_BOX (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
icon_view->model = gimp_container_tree_store_new (view,
icon_view->n_model_columns,
icon_view->model_columns);
icon_view->view = g_object_new (GTK_TYPE_ICON_VIEW,
"model", icon_view->model,
"row-spacing", 0,
"column-spacing", 0,
"margin", 0,
"item-padding", 1,
"has-tooltip", TRUE,
NULL);
g_object_unref (icon_view->model);
gtk_container_add (GTK_CONTAINER (box->scrolled_win),
GTK_WIDGET (icon_view->view));
gtk_widget_show (GTK_WIDGET (icon_view->view));
gimp_container_view_set_dnd_widget (view, GTK_WIDGET (icon_view->view));
icon_view->renderer_cell = gimp_cell_renderer_viewable_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view->view),
icon_view->renderer_cell,
FALSE);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view->view),
icon_view->renderer_cell,
"renderer", GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER,
NULL);
gimp_container_tree_store_add_renderer_cell (GIMP_CONTAINER_TREE_STORE (icon_view->model),
icon_view->renderer_cell, -1);
g_signal_connect (icon_view->view, "selection-changed",
G_CALLBACK (gimp_container_icon_view_selection_changed),
icon_view);
g_signal_connect (icon_view->view, "item-activated",
G_CALLBACK (gimp_container_icon_view_item_activated),
icon_view);
g_signal_connect (icon_view->view, "query-tooltip",
G_CALLBACK (gimp_container_icon_view_tooltip),
icon_view);
}
static void
gimp_container_icon_view_finalize (GObject *object)
{
//GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_container_icon_view_unmap (GtkWidget *widget)
{
//GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (widget);
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}
static gboolean
gimp_container_icon_view_popup_menu (GtkWidget *widget)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (widget);
GtkTreeIter iter;
GtkTreePath *path;
GdkRectangle rect;
if (!gimp_container_icon_view_get_selected_single (icon_view, &iter))
return FALSE;
path = gtk_tree_model_get_path (icon_view->model, &iter);
gtk_icon_view_get_cell_rect (icon_view->view, path, NULL, &rect);
gtk_tree_path_free (path);
return gimp_editor_popup_menu_at_rect (GIMP_EDITOR (widget),
gtk_widget_get_window (GTK_WIDGET (icon_view->view)),
&rect, GDK_GRAVITY_CENTER, GDK_GRAVITY_NORTH_WEST,
NULL);
}
GtkWidget *
gimp_container_icon_view_new (GimpContainer *container,
GimpContext *context,
gint view_size,
gint view_border_width)
{
GimpContainerIconView *icon_view;
GimpContainerView *view;
g_return_val_if_fail (container == NULL || GIMP_IS_CONTAINER (container),
NULL);
g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (view_size > 0 &&
view_size <= GIMP_VIEWABLE_MAX_PREVIEW_SIZE, NULL);
g_return_val_if_fail (view_border_width >= 0 &&
view_border_width <= GIMP_VIEW_MAX_BORDER_WIDTH,
NULL);
icon_view = g_object_new (GIMP_TYPE_CONTAINER_ICON_VIEW, NULL);
view = GIMP_CONTAINER_VIEW (icon_view);
gimp_container_view_set_view_size (view, view_size, 0 /* ignore border */);
if (container)
gimp_container_view_set_container (view, container);
if (context)
gimp_container_view_set_context (view, context);
return GTK_WIDGET (icon_view);
}
/* GimpContainerView methods */
static void
gimp_container_icon_view_set_container (GimpContainerView *view,
GimpContainer *container)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
GimpContainer *old_container;
old_container = gimp_container_view_get_container (view);
if (old_container)
{
if (! container)
{
if (gimp_dnd_viewable_source_remove (GTK_WIDGET (icon_view->view),
gimp_container_get_children_type (old_container)))
{
if (GIMP_VIEWABLE_CLASS (g_type_class_peek (gimp_container_get_children_type (old_container)))->get_size)
gimp_dnd_pixbuf_source_remove (GTK_WIDGET (icon_view->view));
gtk_drag_source_unset (GTK_WIDGET (icon_view->view));
}
g_signal_handlers_disconnect_by_func (icon_view->view,
gimp_container_icon_view_button_press,
icon_view);
}
}
else if (container)
{
if (gimp_dnd_drag_source_set_by_type (GTK_WIDGET (icon_view->view),
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
gimp_container_get_children_type (container),
GDK_ACTION_COPY))
{
gimp_dnd_viewable_source_add (GTK_WIDGET (icon_view->view),
gimp_container_get_children_type (container),
gimp_container_icon_view_drag_viewable,
icon_view);
if (GIMP_VIEWABLE_CLASS (g_type_class_peek (gimp_container_get_children_type (container)))->get_size)
gimp_dnd_pixbuf_source_add (GTK_WIDGET (icon_view->view),
gimp_container_icon_view_drag_pixbuf,
icon_view);
}
g_signal_connect_object (icon_view->view, "button-press-event",
G_CALLBACK (gimp_container_icon_view_button_press),
icon_view,
G_CONNECT_DEFAULT);
}
parent_view_iface->set_container (view, container);
}
static void
gimp_container_icon_view_set_context (GimpContainerView *view,
GimpContext *context)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
parent_view_iface->set_context (view, context);
if (icon_view->model)
gimp_container_tree_store_set_context (GIMP_CONTAINER_TREE_STORE (icon_view->model),
context);
}
static void
gimp_container_icon_view_set_selection_mode (GimpContainerView *view,
GtkSelectionMode mode)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
gtk_icon_view_set_selection_mode (icon_view->view, mode);
parent_view_iface->set_selection_mode (view, mode);
}
static gpointer
gimp_container_icon_view_insert_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer parent_insert_data,
gint index)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
GtkTreeIter *iter;
iter = gimp_container_tree_store_insert_item (GIMP_CONTAINER_TREE_STORE (icon_view->model),
viewable,
parent_insert_data,
index);
if (parent_insert_data)
{
#if 0
GtkTreePath *path = gtk_tree_model_get_path (icon_view->model, iter);
gtk_icon_view_expand_to_path (icon_view->view, path);
gtk_tree_path_free (path);
#endif
}
return iter;
}
static void
gimp_container_icon_view_remove_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
gimp_container_tree_store_remove_item (GIMP_CONTAINER_TREE_STORE (icon_view->model),
viewable,
insert_data);
}
static void
gimp_container_icon_view_reorder_item (GimpContainerView *view,
GimpViewable *viewable,
gint new_index,
gpointer insert_data)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
GtkTreeIter *iter = (GtkTreeIter *) insert_data;
gboolean selected = FALSE;
if (iter)
{
GtkTreeIter selected_iter;
selected = gimp_container_icon_view_get_selected_single (icon_view,
&selected_iter);
if (selected)
{
GimpViewRenderer *renderer;
gtk_tree_model_get (icon_view->model, &selected_iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
if (renderer->viewable != viewable)
selected = FALSE;
g_object_unref (renderer);
}
}
gimp_container_tree_store_reorder_item (GIMP_CONTAINER_TREE_STORE (icon_view->model),
viewable,
new_index,
iter);
if (selected)
gimp_container_view_select_item (view, viewable);
}
static void
gimp_container_icon_view_rename_item (GimpContainerView *view,
GimpViewable *viewable,
gpointer insert_data)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
GtkTreeIter *iter = (GtkTreeIter *) insert_data;
gimp_container_tree_store_rename_item (GIMP_CONTAINER_TREE_STORE (icon_view->model),
viewable,
iter);
}
static gboolean
gimp_container_icon_view_select_items (GimpContainerView *view,
GList *viewables,
GList *paths)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
GList *list;
if (viewables)
{
gboolean free_paths = FALSE;
if (g_list_length (paths) != g_list_length (viewables))
{
free_paths = TRUE;
paths = NULL;
for (list = viewables; list; list = list->next)
{
GtkTreeIter *iter;
GtkTreePath *path;
iter = gimp_container_view_lookup (GIMP_CONTAINER_VIEW (view),
list->data);
if (! iter)
/* This may happen when the GimpContainerIconView only
* shows a subpart of the whole icons. We don't select
* what is not shown.
*/
continue;
path = gtk_tree_model_get_path (icon_view->model, iter);
paths = g_list_prepend (paths, path);
}
paths = g_list_reverse (paths);
}
g_signal_handlers_block_by_func (icon_view->view,
gimp_container_icon_view_selection_changed,
icon_view);
gtk_icon_view_unselect_all (icon_view->view);
for (list = paths; list; list = list->next)
{
gtk_icon_view_select_path (icon_view->view, list->data);
}
if (list)
{
gtk_icon_view_set_cursor (icon_view->view, list->data, NULL, FALSE);
gtk_icon_view_scroll_to_path (icon_view->view, list->data, FALSE, 0.0, 0.0);
}
g_signal_handlers_unblock_by_func (icon_view->view,
gimp_container_icon_view_selection_changed,
icon_view);
if (free_paths)
g_list_free_full (paths, (GDestroyNotify) gtk_tree_path_free);
}
else
{
gtk_icon_view_unselect_all (icon_view->view);
}
return TRUE;
}
static void
gimp_container_icon_view_clear_items (GimpContainerView *view)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
gimp_container_tree_store_clear_items (GIMP_CONTAINER_TREE_STORE (icon_view->model));
parent_view_iface->clear_items (view);
}
static void
gimp_container_icon_view_set_view_size (GimpContainerView *view)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
if (icon_view->model)
gimp_container_tree_store_set_view_size (GIMP_CONTAINER_TREE_STORE (icon_view->model));
if (icon_view->view)
{
gtk_icon_view_set_columns (icon_view->view, -1);
gtk_icon_view_set_item_width (icon_view->view, -1);
/* ugly workaround to force the icon view to invalidate all its
* cached icon sizes
*/
gtk_icon_view_set_item_orientation (icon_view->view,
GTK_ORIENTATION_VERTICAL);
gtk_icon_view_set_item_orientation (icon_view->view,
GTK_ORIENTATION_HORIZONTAL);
}
}
/* callbacks */
static void
gimp_container_icon_view_selection_changed (GtkIconView *gtk_icon_view,
GimpContainerIconView *icon_view)
{
GimpContainerView *view = GIMP_CONTAINER_VIEW (icon_view);
GList *items = NULL;
GList *paths;
GList *list;
paths = gtk_icon_view_get_selected_items (icon_view->view);
for (list = paths; list; list = list->next)
{
GtkTreeIter iter;
GimpViewRenderer *renderer;
gtk_tree_model_get_iter (GTK_TREE_MODEL (icon_view->model), &iter,
(GtkTreePath *) list->data);
gtk_tree_model_get (icon_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
if (renderer->viewable)
items = g_list_prepend (items, renderer->viewable);
g_object_unref (renderer);
}
gimp_container_view_multi_selected (view, items, paths);
g_list_free_full (paths, (GDestroyNotify) gtk_tree_path_free);
g_list_free (items);
}
static void
gimp_container_icon_view_item_activated (GtkIconView *view,
GtkTreePath *path,
GimpContainerIconView *icon_view)
{
GtkTreeIter iter;
GimpViewRenderer *renderer;
gtk_tree_model_get_iter (icon_view->model, &iter, path);
gtk_tree_model_get (icon_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
gimp_container_view_item_activated (GIMP_CONTAINER_VIEW (icon_view),
renderer->viewable);
g_object_unref (renderer);
}
static gboolean
gimp_container_icon_view_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpContainerIconView *icon_view)
{
GimpContainerView *container_view = GIMP_CONTAINER_VIEW (icon_view);
GtkTreePath *path;
icon_view->priv->dnd_renderer = NULL;
path = gtk_icon_view_get_path_at_pos (GTK_ICON_VIEW (widget),
bevent->x, bevent->y);
if (path)
{
GimpViewRenderer *renderer;
GtkTreeIter iter;
gtk_tree_model_get_iter (icon_view->model, &iter, path);
gtk_tree_model_get (icon_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
icon_view->priv->dnd_renderer = renderer;
if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
{
/* If the clicked item is not selected, it becomes the new
* selection. Otherwise, we use the current selection. This
* allows to not break multiple selection when right-clicking.
*/
if (! gimp_container_view_is_item_selected (container_view, renderer->viewable))
gimp_container_view_item_selected (container_view, renderer->viewable);
/* Show the context menu. */
gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (icon_view), (GdkEvent *) bevent);
}
g_object_unref (renderer);
gtk_tree_path_free (path);
}
else
{
if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
{
gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (icon_view), (GdkEvent *) bevent);
}
return TRUE;
}
return FALSE;
}
static gboolean
gimp_container_icon_view_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_tip,
GtkTooltip *tooltip,
GimpContainerIconView *icon_view)
{
GimpViewRenderer *renderer;
GtkTreeIter iter;
GtkTreePath *path;
gboolean show_tip = FALSE;
if (! gtk_icon_view_get_tooltip_context (GTK_ICON_VIEW (widget), &x, &y,
keyboard_tip,
NULL, &path, &iter))
return FALSE;
gtk_tree_model_get (icon_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
if (renderer)
{
gchar *desc;
gchar *tip;
desc = gimp_viewable_get_description (renderer->viewable, &tip);
if (tip)
{
gtk_tooltip_set_text (tooltip, tip);
gtk_icon_view_set_tooltip_cell (GTK_ICON_VIEW (widget), tooltip, path,
icon_view->renderer_cell);
show_tip = TRUE;
g_free (tip);
}
g_free (desc);
g_object_unref (renderer);
}
gtk_tree_path_free (path);
return show_tip;
}
static GimpViewable *
gimp_container_icon_view_drag_viewable (GtkWidget *widget,
GimpContext **context,
gpointer data)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (data);
if (context)
*context = gimp_container_view_get_context (GIMP_CONTAINER_VIEW (data));
if (icon_view->priv->dnd_renderer)
return icon_view->priv->dnd_renderer->viewable;
return NULL;
}
static GdkPixbuf *
gimp_container_icon_view_drag_pixbuf (GtkWidget *widget,
gpointer data)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (data);
GimpViewRenderer *renderer = icon_view->priv->dnd_renderer;
gint width;
gint height;
if (renderer && gimp_viewable_get_size (renderer->viewable, &width, &height))
return gimp_viewable_get_new_pixbuf (renderer->viewable,
renderer->context,
width, height);
return NULL;
}
static gboolean
gimp_container_icon_view_get_selected_single (GimpContainerIconView *icon_view,
GtkTreeIter *iter)
{
GList *selected_items;
gboolean retval;
selected_items = gtk_icon_view_get_selected_items (icon_view->view);
if (g_list_length (selected_items) == 1)
{
gtk_tree_model_get_iter (GTK_TREE_MODEL (icon_view->model), iter,
(GtkTreePath *) selected_items->data);
retval = TRUE;
}
else
{
retval = FALSE;
}
g_list_free_full (selected_items, (GDestroyNotify) gtk_tree_path_free);
return retval;
}
static gint
gimp_container_icon_view_get_selected (GimpContainerView *view,
GList **items,
GList **paths)
{
GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
GList *selected_paths;
gint selected_count;
GimpContainer *container;
container = gimp_container_view_get_container (view);
if (container)
{
const gchar *signal_name;
GimpContext *context;
GType children_type;
context = gimp_container_view_get_context (view);
children_type = gimp_container_get_children_type (container);
signal_name = gimp_context_type_to_signal_name (children_type);
/* As a special case, for containers tied to a context object, we
* look up this object as being selected.
* */
if (signal_name && context)
{
GimpObject *object;
object = gimp_context_get_by_type (context, children_type);
selected_count = object ? 1 : 0;
if (items)
{
if (object)
*items = g_list_prepend (NULL, object);
else
*items = NULL;
}
if (paths)
*paths = NULL;
return selected_count;
}
}
selected_paths = gtk_icon_view_get_selected_items (icon_view->view);
selected_count = g_list_length (selected_paths);
if (items)
{
GList *removed_paths = NULL;
GList *list;
*items = NULL;
for (list = selected_paths;
list;
list = g_list_next (list))
{
GtkTreeIter iter;
GimpViewRenderer *renderer;
gtk_tree_model_get_iter (GTK_TREE_MODEL (icon_view->model), &iter,
(GtkTreePath *) list->data);
gtk_tree_model_get (icon_view->model, &iter,
GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
-1);
if (renderer->viewable)
*items = g_list_prepend (*items, renderer->viewable);
else
/* Remove from the selected_paths list but at the end, in order not
* to break the for loop.
*/
removed_paths = g_list_prepend (removed_paths, list);
g_object_unref (renderer);
}
*items = g_list_reverse (*items);
for (list = removed_paths; list; list = list->next)
{
GList *remove_list = list->data;
selected_paths = g_list_remove_link (selected_paths, remove_list);
gtk_tree_path_free (remove_list->data);
}
g_list_free_full (removed_paths, (GDestroyNotify) g_list_free);
}
if (paths)
*paths = selected_paths;
else
g_list_free_full (selected_paths, (GDestroyNotify) gtk_tree_path_free);
return selected_count;
}