Adding upstream version 2.10.34.upstream/2.10.34upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 805 insertions, 0 deletions

diff --git a/app/widgets/gimpcontainericonview.c b/app/widgets/gimpcontainericonview.c
new file mode 100644
index 0000000..5b141e2
--- /dev/null
+++ b/app/widgets/gimpcontainericonview.c
@@ -0,0 +1,805 @@
+/* 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_item       (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gpointer                     insert_data);
+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);
+
+
+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_item        = gimp_container_icon_view_select_item;
+  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);
+
+  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 void
+gimp_container_icon_view_menu_position (GtkMenu  *menu,
+                                        gint     *x,
+                                        gint     *y,
+                                        gpointer  data)
+{
+  GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (data);
+  GtkWidget             *widget    = GTK_WIDGET (icon_view->view);
+  GtkAllocation          allocation;
+#if 0
+  GtkTreeIter            selected_iter;
+#endif
+
+  gtk_widget_get_allocation (widget, &allocation);
+
+  gdk_window_get_origin (gtk_widget_get_window (widget), x, y);
+
+  if (! gtk_widget_get_has_window (widget))
+    {
+      *x += allocation.x;
+      *y += allocation.y;
+    }
+
+#if 0
+  if (gimp_container_icon_view_get_selected_single (icon_view, &selected_iter))
+    {
+      GtkTreePath  *path;
+      GdkRectangle  cell_rect;
+      gint          center;
+
+      path = gtk_tree_model_get_path (icon_view->model, &selected_iter);
+      gtk_icon_view_get_cell_area (icon_view->view, path,
+                                   icon_view->main_column, &cell_rect);
+      gtk_tree_path_free (path);
+
+      center = cell_rect.y + cell_rect.height / 2;
+      center = CLAMP (center, 0, allocation.height);
+
+      *x += allocation.width / 2;
+      *y += center;
+    }
+  else
+#endif
+    {
+      GtkStyle *style = gtk_widget_get_style (widget);
+
+      *x += style->xthickness;
+      *y += style->ythickness;
+    }
+
+  gimp_menu_position (menu, x, y);
+}
+
+static gboolean
+gimp_container_icon_view_popup_menu (GtkWidget *widget)
+{
+  return gimp_editor_popup_menu (GIMP_EDITOR (widget),
+                                 gimp_container_icon_view_menu_position,
+                                 widget);
+}
+
+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 (icon_view->view, "button-press-event",
+                        G_CALLBACK (gimp_container_icon_view_button_press),
+                        icon_view);
+    }
+
+  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_item (GimpContainerView *view,
+                                      GimpViewable      *viewable,
+                                      gpointer           insert_data)
+{
+  GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
+
+  if (viewable && insert_data)
+    {
+      GtkTreePath *path;
+      GtkTreePath *parent_path;
+      GtkTreeIter *iter = (GtkTreeIter *) insert_data;
+
+      path = gtk_tree_model_get_path (icon_view->model, iter);
+
+      parent_path = gtk_tree_path_copy (path);
+
+      if (gtk_tree_path_up (parent_path))
+        ;
+#if 0
+        gtk_icon_view_expand_to_path (icon_view->view, parent_path);
+#endif
+
+      gtk_tree_path_free (parent_path);
+
+      g_signal_handlers_block_by_func (icon_view->view,
+                                       gimp_container_icon_view_selection_changed,
+                                       icon_view);
+
+      gtk_icon_view_select_path (icon_view->view, path);
+      gtk_icon_view_set_cursor (icon_view->view, path, NULL, FALSE);
+
+      g_signal_handlers_unblock_by_func (icon_view->view,
+                                         gimp_container_icon_view_selection_changed,
+                                         icon_view);
+
+      gtk_icon_view_scroll_to_path (icon_view->view, path, FALSE, 0.0, 0.0);
+
+      gtk_tree_path_free (path);
+    }
+  else if (insert_data == NULL)
+    {
+      /* viewable == NULL && insert_data != NULL means multiple selection.
+       * viewable == NULL && insert_data == NULL means no selection. */
+      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);
+    }
+}
+
+
+/*  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;
+
+  gimp_container_icon_view_get_selected (view, &items);
+  gimp_container_view_multi_selected (view, items);
+  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)
+{
+  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;
+
+      g_object_unref (renderer);
+
+      gtk_tree_path_free (path);
+    }
+
+  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)
+{
+  GimpContainerIconView *icon_view = GIMP_CONTAINER_ICON_VIEW (view);
+  GList                 *selected_items;
+  gint                   selected_count;
+
+  selected_items = gtk_icon_view_get_selected_items (icon_view->view);
+  selected_count = g_list_length (selected_items);
+
+  if (items)
+    {
+      GList *list;
+
+      *items = NULL;
+
+      for (list = selected_items;
+           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);
+
+          g_object_unref (renderer);
+        }
+
+      *items = g_list_reverse (*items);
+    }
+
+  g_list_free_full (selected_items, (GDestroyNotify) gtk_tree_path_free);
+
+  return selected_count;
+}