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gimp/app/widgets/gimpcontainericonview.c

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/* 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,
0);
}
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;
gboolean handled = GDK_EVENT_PROPAGATE;
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. */
handled = gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (icon_view), (GdkEvent *) bevent);
}
/* Else LMB down or similar. Propagate. */
g_object_unref (renderer);
gtk_tree_path_free (path);
}
else
{
/* Button down outside any item. */
if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
{
(void) gimp_editor_popup_menu_at_pointer (GIMP_EDITOR (icon_view), (GdkEvent *) bevent);
/* Discard result. Does not actually popup menu except for managed views, e.g. dockable. */
}
/* Else LMB down or similar.
* Say we handled event even though we did nothing.
* Otherwise, selection is set to None.
*/
handled = GDK_EVENT_STOP;
}
return handled;
}
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;
}
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