Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 1722 insertions, 0 deletions

diff --git a/app/widgets/gimpcontainertreeview.c b/app/widgets/gimpcontainertreeview.c
new file mode 100644
index 0000000..fd48816
--- /dev/null
+++ b/app/widgets/gimpcontainertreeview.c
@@ -0,0 +1,1722 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcontainertreeview.c
+ * Copyright (C) 2003-2010 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 <gdk/gdkkeysyms.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "core/gimpcontainer.h"
+#include "core/gimpcontext.h"
+#include "core/gimpmarshal.h"
+#include "core/gimpviewable.h"
+
+#include "gimpcellrendererbutton.h"
+#include "gimpcellrendererviewable.h"
+#include "gimpcontainertreestore.h"
+#include "gimpcontainertreeview.h"
+#include "gimpcontainertreeview-dnd.h"
+#include "gimpcontainertreeview.h"
+#include "gimpcontainertreeview-private.h"
+#include "gimpcontainerview.h"
+#include "gimpdnd.h"
+#include "gimpviewrenderer.h"
+#include "gimpwidgets-utils.h"
+
+
+enum
+{
+  EDIT_NAME,
+  LAST_SIGNAL
+};
+
+
+static void          gimp_container_tree_view_view_iface_init   (GimpContainerViewInterface  *iface);
+
+static void          gimp_container_tree_view_constructed       (GObject                     *object);
+static void          gimp_container_tree_view_finalize          (GObject                     *object);
+
+static void          gimp_container_tree_view_style_set         (GtkWidget                   *widget,
+                                                                 GtkStyle                    *prev_style);
+static void          gimp_container_tree_view_unmap             (GtkWidget                   *widget);
+static gboolean      gimp_container_tree_view_popup_menu        (GtkWidget                   *widget);
+
+static void          gimp_container_tree_view_set_container     (GimpContainerView           *view,
+                                                                 GimpContainer               *container);
+static void          gimp_container_tree_view_set_context       (GimpContainerView           *view,
+                                                                 GimpContext                 *context);
+static void          gimp_container_tree_view_set_selection_mode(GimpContainerView           *view,
+                                                                 GtkSelectionMode             mode);
+
+static gpointer      gimp_container_tree_view_insert_item       (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gpointer                     parent_insert_data,
+                                                                 gint                         index);
+static void          gimp_container_tree_view_remove_item       (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gpointer                     insert_data);
+static void          gimp_container_tree_view_reorder_item      (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gint                         new_index,
+                                                                 gpointer                     insert_data);
+static void          gimp_container_tree_view_rename_item       (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gpointer                     insert_data);
+static void          gimp_container_tree_view_expand_item       (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gpointer                     insert_data);
+static gboolean      gimp_container_tree_view_select_item       (GimpContainerView           *view,
+                                                                 GimpViewable                *viewable,
+                                                                 gpointer                     insert_data);
+static void          gimp_container_tree_view_clear_items       (GimpContainerView           *view);
+static void          gimp_container_tree_view_set_view_size     (GimpContainerView           *view);
+
+static void          gimp_container_tree_view_real_edit_name    (GimpContainerTreeView       *tree_view);
+
+static gboolean      gimp_container_tree_view_edit_focus_out    (GtkWidget                   *widget,
+                                                                 GdkEvent                    *event,
+                                                                 gpointer                     user_data);
+static void          gimp_container_tree_view_name_started      (GtkCellRendererText         *cell,
+                                                                 GtkCellEditable             *editable,
+                                                                 const gchar                 *path_str,
+                                                                 GimpContainerTreeView       *tree_view);
+static void          gimp_container_tree_view_name_canceled     (GtkCellRendererText         *cell,
+                                                                 GimpContainerTreeView       *tree_view);
+
+static void          gimp_container_tree_view_cursor_changed    (GtkTreeView                 *view,
+                                                                 GimpContainerTreeView       *tree_view);
+static void          gimp_container_tree_view_selection_changed (GtkTreeSelection            *sel,
+                                                                 GimpContainerTreeView       *tree_view);
+static gboolean      gimp_container_tree_view_button_press      (GtkWidget                   *widget,
+                                                                 GdkEventButton              *bevent,
+                                                                 GimpContainerTreeView       *tree_view);
+static gboolean      gimp_container_tree_view_tooltip           (GtkWidget                   *widget,
+                                                                 gint                         x,
+                                                                 gint                         y,
+                                                                 gboolean                     keyboard_tip,
+                                                                 GtkTooltip                  *tooltip,
+                                                                 GimpContainerTreeView       *tree_view);
+static GimpViewable *gimp_container_tree_view_drag_viewable     (GtkWidget                   *widget,
+                                                                 GimpContext                **context,
+                                                                 gpointer                     data);
+static GdkPixbuf    *gimp_container_tree_view_drag_pixbuf       (GtkWidget                   *widget,
+                                                                 gpointer                     data);
+
+static gboolean      gimp_container_tree_view_get_selected_single (GimpContainerTreeView  *tree_view,
+                                                                   GtkTreeIter            *iter);
+static gint          gimp_container_tree_view_get_selected        (GimpContainerView    *view,
+                                                                   GList               **items);
+static void          gimp_container_tree_view_row_expanded        (GtkTreeView               *tree_view,
+                                                                   GtkTreeIter               *iter,
+                                                                   GtkTreePath               *path,
+                                                                   GimpContainerTreeView     *view);
+static void          gimp_container_tree_view_expand_rows         (GtkTreeModel             *model,
+                                                                   GtkTreeView              *view,
+                                                                   GtkTreeIter              *parent);
+
+static void          gimp_container_tree_view_monitor_changed     (GimpContainerTreeView    *view);
+
+static void          gimp_container_tree_view_process_updates     (GimpContainerTreeView    *tree_view);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpContainerTreeView, gimp_container_tree_view,
+                         GIMP_TYPE_CONTAINER_BOX,
+                         G_ADD_PRIVATE (GimpContainerTreeView)
+                         G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONTAINER_VIEW,
+                                                gimp_container_tree_view_view_iface_init))
+
+#define parent_class gimp_container_tree_view_parent_class
+
+static GimpContainerViewInterface *parent_view_iface = NULL;
+
+static guint tree_view_signals[LAST_SIGNAL] = { 0 };
+
+
+static void
+gimp_container_tree_view_class_init (GimpContainerTreeViewClass *klass)
+{
+  GObjectClass   *object_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GtkBindingSet  *binding_set;
+
+  object_class->constructed = gimp_container_tree_view_constructed;
+  object_class->finalize    = gimp_container_tree_view_finalize;
+
+  widget_class->style_set   = gimp_container_tree_view_style_set;
+  widget_class->unmap       = gimp_container_tree_view_unmap;
+  widget_class->popup_menu  = gimp_container_tree_view_popup_menu;
+
+  klass->edit_name          = gimp_container_tree_view_real_edit_name;
+  klass->drop_possible      = gimp_container_tree_view_real_drop_possible;
+  klass->drop_viewable      = gimp_container_tree_view_real_drop_viewable;
+  klass->drop_color         = NULL;
+  klass->drop_uri_list      = NULL;
+  klass->drop_svg           = NULL;
+  klass->drop_component     = NULL;
+  klass->drop_pixbuf        = NULL;
+
+  tree_view_signals[EDIT_NAME] =
+    g_signal_new ("edit-name",
+                  G_TYPE_FROM_CLASS (klass),
+                  G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                  G_STRUCT_OFFSET (GimpContainerTreeViewClass, edit_name),
+                  NULL, NULL,
+                  gimp_marshal_VOID__VOID,
+                  G_TYPE_NONE, 0);
+
+  binding_set = gtk_binding_set_by_class (klass);
+
+  gtk_binding_entry_add_signal (binding_set, GDK_KEY_F2, 0,
+                                "edit-name", 0);
+}
+
+static void
+gimp_container_tree_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_tree_view_set_container;
+  iface->set_context        = gimp_container_tree_view_set_context;
+  iface->set_selection_mode = gimp_container_tree_view_set_selection_mode;
+  iface->insert_item        = gimp_container_tree_view_insert_item;
+  iface->remove_item        = gimp_container_tree_view_remove_item;
+  iface->reorder_item       = gimp_container_tree_view_reorder_item;
+  iface->rename_item        = gimp_container_tree_view_rename_item;
+  iface->expand_item        = gimp_container_tree_view_expand_item;
+  iface->select_item        = gimp_container_tree_view_select_item;
+  iface->clear_items        = gimp_container_tree_view_clear_items;
+  iface->set_view_size      = gimp_container_tree_view_set_view_size;
+  iface->get_selected       = gimp_container_tree_view_get_selected;
+
+  iface->insert_data_free = (GDestroyNotify) gtk_tree_iter_free;
+}
+
+static void
+gimp_container_tree_view_init (GimpContainerTreeView *tree_view)
+{
+  GimpContainerBox *box = GIMP_CONTAINER_BOX (tree_view);
+
+  tree_view->priv = gimp_container_tree_view_get_instance_private (tree_view);
+
+  gimp_container_tree_store_columns_init (tree_view->model_columns,
+                                          &tree_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);
+
+  gimp_widget_track_monitor (GTK_WIDGET (tree_view),
+                             G_CALLBACK (gimp_container_tree_view_monitor_changed),
+                             NULL);
+}
+
+static void
+gimp_container_tree_view_constructed (GObject *object)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
+  GimpContainerView     *view      = GIMP_CONTAINER_VIEW (object);
+  GimpContainerBox      *box       = GIMP_CONTAINER_BOX (object);
+
+  G_OBJECT_CLASS (parent_class)->constructed (object);
+
+  tree_view->model = gimp_container_tree_store_new (view,
+                                                    tree_view->n_model_columns,
+                                                    tree_view->model_columns);
+
+  tree_view->view = g_object_new (GTK_TYPE_TREE_VIEW,
+                                  "model",           tree_view->model,
+                                  "search-column",   GIMP_CONTAINER_TREE_STORE_COLUMN_NAME,
+                                  "enable-search",   FALSE,
+                                  "headers-visible", FALSE,
+                                  "has-tooltip",     TRUE,
+                                  "show-expanders",  GIMP_CONTAINER_VIEW_GET_INTERFACE (view)->model_is_tree,
+                                  NULL);
+
+  gtk_container_add (GTK_CONTAINER (box->scrolled_win),
+                     GTK_WIDGET (tree_view->view));
+  gtk_widget_show (GTK_WIDGET (tree_view->view));
+
+  gimp_container_view_set_dnd_widget (view, GTK_WIDGET (tree_view->view));
+
+  g_signal_connect (tree_view->view, "cursor-changed",
+                    G_CALLBACK (gimp_container_tree_view_cursor_changed),
+                    tree_view);
+
+  tree_view->main_column = gtk_tree_view_column_new ();
+  gtk_tree_view_insert_column (tree_view->view, tree_view->main_column, 0);
+
+  gtk_tree_view_set_expander_column (tree_view->view, tree_view->main_column);
+  gtk_tree_view_set_enable_tree_lines (tree_view->view, TRUE);
+
+  tree_view->renderer_cell = gimp_cell_renderer_viewable_new ();
+  gtk_tree_view_column_pack_start (tree_view->main_column,
+                                   tree_view->renderer_cell,
+                                   FALSE);
+
+  gtk_tree_view_column_set_attributes (tree_view->main_column,
+                                       tree_view->renderer_cell,
+                                       "renderer", GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER,
+                                       NULL);
+
+  tree_view->priv->name_cell = gtk_cell_renderer_text_new ();
+  g_object_set (tree_view->priv->name_cell, "xalign", 0.0, NULL);
+  gtk_tree_view_column_pack_end (tree_view->main_column,
+                                 tree_view->priv->name_cell,
+                                 FALSE);
+
+  gtk_tree_view_column_set_attributes (tree_view->main_column,
+                                       tree_view->priv->name_cell,
+                                       "text",       GIMP_CONTAINER_TREE_STORE_COLUMN_NAME,
+                                       "attributes", GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_ATTRIBUTES,
+                                       "sensitive",  GIMP_CONTAINER_TREE_STORE_COLUMN_NAME_SENSITIVE,
+                                       NULL);
+
+  g_signal_connect (tree_view->priv->name_cell, "editing-started",
+                    G_CALLBACK (gimp_container_tree_view_name_started),
+                    tree_view);
+  g_signal_connect (tree_view->priv->name_cell, "editing-canceled",
+                    G_CALLBACK (gimp_container_tree_view_name_canceled),
+                    tree_view);
+
+  gimp_container_tree_view_add_renderer_cell (tree_view,
+                                              tree_view->renderer_cell);
+
+  tree_view->priv->selection = gtk_tree_view_get_selection (tree_view->view);
+
+  g_signal_connect (tree_view->priv->selection, "changed",
+                    G_CALLBACK (gimp_container_tree_view_selection_changed),
+                    tree_view);
+
+  g_signal_connect (tree_view->view, "drag-failed",
+                    G_CALLBACK (gimp_container_tree_view_drag_failed),
+                    tree_view);
+  g_signal_connect (tree_view->view, "drag-leave",
+                    G_CALLBACK (gimp_container_tree_view_drag_leave),
+                    tree_view);
+  g_signal_connect (tree_view->view, "drag-motion",
+                    G_CALLBACK (gimp_container_tree_view_drag_motion),
+                    tree_view);
+  g_signal_connect (tree_view->view, "drag-drop",
+                    G_CALLBACK (gimp_container_tree_view_drag_drop),
+                    tree_view);
+  g_signal_connect (tree_view->view, "drag-data-received",
+                    G_CALLBACK (gimp_container_tree_view_drag_data_received),
+                    tree_view);
+
+  /* connect_after so external code can connect to "query-tooltip" too
+   * and override the default tip
+   */
+  g_signal_connect_after (tree_view->view, "query-tooltip",
+                          G_CALLBACK (gimp_container_tree_view_tooltip),
+                          tree_view);
+}
+
+static void
+gimp_container_tree_view_finalize (GObject *object)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (object);
+
+  g_clear_object (&tree_view->model);
+
+  if (tree_view->priv->toggle_cells)
+    {
+      g_list_free (tree_view->priv->toggle_cells);
+      tree_view->priv->toggle_cells = NULL;
+    }
+
+  if (tree_view->priv->renderer_cells)
+    {
+      g_list_free (tree_view->priv->renderer_cells);
+      tree_view->priv->renderer_cells = NULL;
+    }
+
+  if (tree_view->priv->editable_cells)
+    {
+      g_list_free (tree_view->priv->editable_cells);
+      tree_view->priv->editable_cells = NULL;
+    }
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gboolean
+gimp_container_tree_view_style_set_foreach (GtkTreeModel *model,
+                                            GtkTreePath  *path,
+                                            GtkTreeIter  *iter,
+                                            gpointer      data)
+{
+  GimpViewRenderer *renderer;
+
+  gtk_tree_model_get (model, iter,
+                      GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                      -1);
+
+  if (renderer)
+    {
+      gimp_view_renderer_invalidate (renderer);
+      g_object_unref (renderer);
+    }
+
+  return FALSE;
+}
+
+static void
+gimp_container_tree_view_style_set (GtkWidget *widget,
+                                    GtkStyle  *prev_style)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (widget);
+
+  GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
+
+  if (tree_view->model)
+    gtk_tree_model_foreach (tree_view->model,
+                            gimp_container_tree_view_style_set_foreach,
+                            NULL);
+}
+
+static void
+gimp_container_tree_view_unmap (GtkWidget *widget)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (widget);
+
+  if (tree_view->priv->scroll_timeout_id)
+    {
+      g_source_remove (tree_view->priv->scroll_timeout_id);
+      tree_view->priv->scroll_timeout_id = 0;
+    }
+
+  GTK_WIDGET_CLASS (parent_class)->unmap (widget);
+}
+
+static void
+gimp_container_tree_view_menu_position (GtkMenu  *menu,
+                                        gint     *x,
+                                        gint     *y,
+                                        gpointer  data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (data);
+  GtkWidget             *widget    = GTK_WIDGET (tree_view->view);
+  GtkAllocation          allocation;
+  GtkTreeIter            selected_iter;
+
+  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 (gimp_container_tree_view_get_selected_single (tree_view, &selected_iter))
+    {
+      GtkTreePath  *path;
+      GdkRectangle  cell_rect;
+      gint          center;
+
+      path = gtk_tree_model_get_path (tree_view->model, &selected_iter);
+      gtk_tree_view_get_cell_area (tree_view->view, path,
+                                   tree_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
+    {
+      GtkStyle *style = gtk_widget_get_style (widget);
+
+      *x += style->xthickness;
+      *y += style->ythickness;
+    }
+
+  gimp_menu_position (menu, x, y);
+}
+
+static gboolean
+gimp_container_tree_view_popup_menu (GtkWidget *widget)
+{
+  return gimp_editor_popup_menu (GIMP_EDITOR (widget),
+                                 gimp_container_tree_view_menu_position,
+                                 widget);
+}
+
+GtkWidget *
+gimp_container_tree_view_new (GimpContainer *container,
+                              GimpContext   *context,
+                              gint           view_size,
+                              gint           view_border_width)
+{
+  GimpContainerTreeView *tree_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);
+
+  tree_view = g_object_new (GIMP_TYPE_CONTAINER_TREE_VIEW, NULL);
+
+  view = GIMP_CONTAINER_VIEW (tree_view);
+
+  gimp_container_view_set_view_size (view, view_size, view_border_width);
+
+  if (container)
+    gimp_container_view_set_container (view, container);
+
+  if (context)
+    gimp_container_view_set_context (view, context);
+
+  return GTK_WIDGET (tree_view);
+}
+
+GtkCellRenderer *
+gimp_container_tree_view_get_name_cell (GimpContainerTreeView *tree_view)
+{
+  g_return_val_if_fail (GIMP_IS_CONTAINER_TREE_VIEW (tree_view), NULL);
+
+  return tree_view->priv->name_cell;
+}
+
+void
+gimp_container_tree_view_set_main_column_title (GimpContainerTreeView *tree_view,
+                                                const gchar           *title)
+{
+  g_return_if_fail (GIMP_IS_CONTAINER_TREE_VIEW (tree_view));
+
+  gtk_tree_view_column_set_title (tree_view->main_column,
+                                  title);
+}
+
+void
+gimp_container_tree_view_add_toggle_cell (GimpContainerTreeView *tree_view,
+                                          GtkCellRenderer       *cell)
+{
+  g_return_if_fail (GIMP_IS_CONTAINER_TREE_VIEW (tree_view));
+  g_return_if_fail (GIMP_IS_CELL_RENDERER_TOGGLE (cell) ||
+                    GIMP_IS_CELL_RENDERER_BUTTON (cell));
+
+  tree_view->priv->toggle_cells = g_list_prepend (tree_view->priv->toggle_cells,
+                                                  cell);
+}
+
+void
+gimp_container_tree_view_add_renderer_cell (GimpContainerTreeView *tree_view,
+                                            GtkCellRenderer       *cell)
+{
+  g_return_if_fail (GIMP_IS_CONTAINER_TREE_VIEW (tree_view));
+  g_return_if_fail (GIMP_IS_CELL_RENDERER_VIEWABLE (cell));
+
+  tree_view->priv->renderer_cells = g_list_prepend (tree_view->priv->renderer_cells,
+                                                    cell);
+
+  gimp_container_tree_store_add_renderer_cell (GIMP_CONTAINER_TREE_STORE (tree_view->model),
+                                               cell);
+}
+
+void
+gimp_container_tree_view_set_dnd_drop_to_empty (GimpContainerTreeView *tree_view,
+                                                gboolean               dnd_drop_to_empty)
+{
+  g_return_if_fail (GIMP_IS_CONTAINER_TREE_VIEW (tree_view));
+
+  tree_view->priv->dnd_drop_to_empty = dnd_drop_to_empty;
+}
+
+void
+gimp_container_tree_view_connect_name_edited (GimpContainerTreeView *tree_view,
+                                              GCallback              callback,
+                                              gpointer               data)
+{
+  g_return_if_fail (GIMP_IS_CONTAINER_TREE_VIEW (tree_view));
+  g_return_if_fail (callback != NULL);
+
+  g_object_set (tree_view->priv->name_cell,
+                "mode",     GTK_CELL_RENDERER_MODE_EDITABLE,
+                "editable", TRUE,
+                NULL);
+
+  if (! g_list_find (tree_view->priv->editable_cells, tree_view->priv->name_cell))
+    tree_view->priv->editable_cells = g_list_prepend (tree_view->priv->editable_cells,
+                                                      tree_view->priv->name_cell);
+
+  g_signal_connect (tree_view->priv->name_cell, "edited",
+                    callback,
+                    data);
+}
+
+gboolean
+gimp_container_tree_view_name_edited (GtkCellRendererText   *cell,
+                                      const gchar           *path_str,
+                                      const gchar           *new_name,
+                                      GimpContainerTreeView *tree_view)
+{
+  GtkTreePath *path;
+  GtkTreeIter  iter;
+  gboolean     changed = FALSE;
+
+  path = gtk_tree_path_new_from_string (path_str);
+
+  if (gtk_tree_model_get_iter (tree_view->model, &iter, path))
+    {
+      GimpViewRenderer *renderer;
+      GimpObject       *object;
+      const gchar      *old_name;
+
+      gtk_tree_model_get (tree_view->model, &iter,
+                          GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                          -1);
+
+      object = GIMP_OBJECT (renderer->viewable);
+
+      old_name = gimp_object_get_name (object);
+
+      if (! old_name) old_name = "";
+      if (! new_name) new_name = "";
+
+      if (strcmp (old_name, new_name))
+        {
+          gimp_object_set_name (object, new_name);
+
+          changed = TRUE;
+        }
+      else
+        {
+          gchar *name = gimp_viewable_get_description (renderer->viewable,
+                                                       NULL);
+
+          gtk_tree_store_set (GTK_TREE_STORE (tree_view->model), &iter,
+                              GIMP_CONTAINER_TREE_STORE_COLUMN_NAME, name,
+                              -1);
+          g_free (name);
+        }
+
+      g_object_unref (renderer);
+    }
+
+  gtk_tree_path_free (path);
+
+  return changed;
+}
+
+
+/*  GimpContainerView methods  */
+
+static void
+gimp_container_tree_view_set_container (GimpContainerView *view,
+                                        GimpContainer     *container)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GimpContainer         *old_container;
+
+  old_container = gimp_container_view_get_container (view);
+
+  if (old_container)
+    {
+      tree_view->priv->dnd_renderer = NULL;
+
+      g_signal_handlers_disconnect_by_func (tree_view->view,
+                                            gimp_container_tree_view_row_expanded,
+                                            tree_view);
+      if (! container)
+        {
+          if (gimp_dnd_viewable_source_remove (GTK_WIDGET (tree_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 (tree_view->view));
+
+              gtk_drag_source_unset (GTK_WIDGET (tree_view->view));
+            }
+
+          g_signal_handlers_disconnect_by_func (tree_view->view,
+                                                gimp_container_tree_view_button_press,
+                                                tree_view);
+        }
+    }
+  else if (container)
+    {
+      if (gimp_dnd_drag_source_set_by_type (GTK_WIDGET (tree_view->view),
+                                            GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
+                                            gimp_container_get_children_type (container),
+                                            GDK_ACTION_COPY))
+        {
+          gimp_dnd_viewable_source_add (GTK_WIDGET (tree_view->view),
+                                        gimp_container_get_children_type (container),
+                                        gimp_container_tree_view_drag_viewable,
+                                        tree_view);
+
+          if (GIMP_VIEWABLE_CLASS (g_type_class_peek (gimp_container_get_children_type (container)))->get_size)
+            gimp_dnd_pixbuf_source_add (GTK_WIDGET (tree_view->view),
+                                        gimp_container_tree_view_drag_pixbuf,
+                                        tree_view);
+        }
+
+      /*  connect button_press_event after DND so we can keep the list from
+       *  selecting the item on button2
+       */
+      g_signal_connect (tree_view->view, "button-press-event",
+                        G_CALLBACK (gimp_container_tree_view_button_press),
+                        tree_view);
+    }
+
+  parent_view_iface->set_container (view, container);
+
+  if (container)
+    {
+      gimp_container_tree_view_expand_rows (tree_view->model,
+                                            tree_view->view,
+                                            NULL);
+
+      g_signal_connect (tree_view->view,
+                        "row-collapsed",
+                        G_CALLBACK (gimp_container_tree_view_row_expanded),
+                        tree_view);
+      g_signal_connect (tree_view->view,
+                        "row-expanded",
+                        G_CALLBACK (gimp_container_tree_view_row_expanded),
+                        tree_view);
+    }
+
+  gtk_tree_view_columns_autosize (tree_view->view);
+}
+
+static void
+gimp_container_tree_view_set_context (GimpContainerView *view,
+                                      GimpContext       *context)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+
+  if (tree_view->model)
+    gimp_container_tree_store_set_context (GIMP_CONTAINER_TREE_STORE (tree_view->model),
+                                           context);
+
+  parent_view_iface->set_context (view, context);
+}
+
+static void
+gimp_container_tree_view_set_selection_mode (GimpContainerView *view,
+                                             GtkSelectionMode   mode)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+
+  gtk_tree_selection_set_mode (tree_view->priv->selection, mode);
+
+  parent_view_iface->set_selection_mode (view, mode);
+}
+
+static gpointer
+gimp_container_tree_view_insert_item (GimpContainerView *view,
+                                      GimpViewable      *viewable,
+                                      gpointer           parent_insert_data,
+                                      gint               index)
+{
+  GimpContainerTreeView *tree_view   = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkTreeIter           *parent_iter = parent_insert_data;
+  GtkTreeIter           *iter;
+
+  iter = gimp_container_tree_store_insert_item (GIMP_CONTAINER_TREE_STORE (tree_view->model),
+                                                viewable,
+                                                parent_iter,
+                                                index);
+
+  if (parent_iter)
+    gimp_container_tree_view_expand_item (view, viewable, parent_iter);
+
+  return iter;
+}
+
+static void
+gimp_container_tree_view_remove_item (GimpContainerView *view,
+                                      GimpViewable      *viewable,
+                                      gpointer           insert_data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkTreeIter           *iter      = (GtkTreeIter *) insert_data;
+
+  gimp_container_tree_store_remove_item (GIMP_CONTAINER_TREE_STORE (tree_view->model),
+                                         viewable,
+                                         iter);
+
+  if (iter)
+    gtk_tree_view_columns_autosize (tree_view->view);
+}
+
+static void
+gimp_container_tree_view_reorder_item (GimpContainerView *view,
+                                       GimpViewable      *viewable,
+                                       gint               new_index,
+                                       gpointer           insert_data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkTreeIter           *iter      = (GtkTreeIter *) insert_data;
+  GtkTreeIter            parent_iter;
+  gboolean               selected  = FALSE;
+
+  if (iter)
+    {
+      GtkTreeIter selected_iter;
+
+      selected = gimp_container_tree_view_get_selected_single (tree_view,
+                                                               &selected_iter);
+
+      if (selected)
+        {
+          GimpViewRenderer *renderer;
+
+          gtk_tree_model_get (tree_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 (tree_view->model),
+                                          viewable,
+                                          new_index,
+                                          iter);
+
+  if (selected)
+    gimp_container_view_select_item (view, viewable);
+
+  if (gtk_tree_model_iter_parent (tree_view->model, &parent_iter, iter))
+    gimp_container_tree_view_expand_item (view, viewable, &parent_iter);
+}
+
+static void
+gimp_container_tree_view_rename_item (GimpContainerView *view,
+                                      GimpViewable      *viewable,
+                                      gpointer           insert_data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkTreeIter           *iter      = (GtkTreeIter *) insert_data;
+
+  if (gimp_container_tree_store_rename_item (GIMP_CONTAINER_TREE_STORE (tree_view->model),
+                                             viewable,
+                                             iter))
+    {
+      gtk_tree_view_columns_autosize (tree_view->view);
+    }
+}
+
+static void
+gimp_container_tree_view_expand_item (GimpContainerView *view,
+                                      GimpViewable      *viewable,
+                                      gpointer           insert_data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkTreeIter           *iter      = (GtkTreeIter *) insert_data;
+  GimpViewRenderer      *renderer;
+
+  gtk_tree_model_get (tree_view->model, iter,
+                      GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                      -1);
+
+  if (renderer)
+    {
+      GtkTreePath *path = gtk_tree_model_get_path (tree_view->model, iter);
+
+      g_signal_handlers_block_by_func (tree_view,
+                                       gimp_container_tree_view_row_expanded,
+                                       view);
+
+      if (gimp_viewable_get_expanded (renderer->viewable))
+        gtk_tree_view_expand_row (tree_view->view, path, FALSE);
+      else
+        gtk_tree_view_collapse_row (tree_view->view, path);
+
+      g_signal_handlers_unblock_by_func (tree_view,
+                                         gimp_container_tree_view_row_expanded,
+                                         view);
+
+      gtk_tree_path_free (path);
+      g_object_unref (renderer);
+    }
+}
+
+static gboolean
+gimp_container_tree_view_select_item (GimpContainerView *view,
+                                      GimpViewable      *viewable,
+                                      gpointer           insert_data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+
+  if (viewable && insert_data)
+    {
+      GtkTreePath *path;
+      GtkTreePath *parent_path;
+      GtkTreeIter *iter = (GtkTreeIter *) insert_data;
+
+      path = gtk_tree_model_get_path (tree_view->model, iter);
+
+      parent_path = gtk_tree_path_copy (path);
+
+      if (gtk_tree_path_up (parent_path))
+        gtk_tree_view_expand_to_path (tree_view->view, parent_path);
+
+      gtk_tree_path_free (parent_path);
+
+      g_signal_handlers_block_by_func (tree_view->priv->selection,
+                                       gimp_container_tree_view_selection_changed,
+                                       tree_view);
+
+      gtk_tree_view_set_cursor (tree_view->view, path, NULL, FALSE);
+
+      g_signal_handlers_unblock_by_func (tree_view->priv->selection,
+                                         gimp_container_tree_view_selection_changed,
+                                         tree_view);
+
+      gtk_tree_view_scroll_to_cell (tree_view->view, path,
+                                    NULL, 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_tree_selection_unselect_all (tree_view->priv->selection);
+    }
+
+  return TRUE;
+}
+
+static void
+gimp_container_tree_view_clear_items (GimpContainerView *view)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+
+  g_signal_handlers_block_by_func (tree_view->priv->selection,
+                                   gimp_container_tree_view_selection_changed,
+                                   tree_view);
+
+  /* temporarily unset the tree-view's model, so that name editing is stopped
+   * now, before clearing the tree store.  otherwise, name editing would stop
+   * when the corresponding item is removed from the store, leading us to
+   * rename the wrong item.  see issue #3284.
+   */
+  gtk_tree_view_set_model (tree_view->view, NULL);
+
+  gimp_container_tree_store_clear_items (GIMP_CONTAINER_TREE_STORE (tree_view->model));
+
+  gtk_tree_view_set_model (tree_view->view, tree_view->model);
+
+  g_signal_handlers_unblock_by_func (tree_view->priv->selection,
+                                     gimp_container_tree_view_selection_changed,
+                                     tree_view);
+
+  parent_view_iface->clear_items (view);
+}
+
+static void
+gimp_container_tree_view_set_view_size (GimpContainerView *view)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkWidget             *tree_widget;
+  GList                 *list;
+  gint                   view_size;
+  gint                   border_width;
+
+  view_size = gimp_container_view_get_view_size (view, &border_width);
+
+  if (tree_view->model)
+    gimp_container_tree_store_set_view_size (GIMP_CONTAINER_TREE_STORE (tree_view->model));
+
+  tree_widget = GTK_WIDGET (tree_view->view);
+
+  if (! tree_widget)
+    return;
+
+  for (list = tree_view->priv->toggle_cells; list; list = g_list_next (list))
+    {
+      gchar       *icon_name;
+      GtkIconSize  icon_size;
+
+      g_object_get (list->data, "icon-name", &icon_name, NULL);
+
+      if (icon_name)
+        {
+          GtkStyle *style = gtk_widget_get_style (tree_widget);
+
+          icon_size = gimp_get_icon_size (tree_widget,
+                                          icon_name,
+                                          GTK_ICON_SIZE_BUTTON,
+                                          view_size -
+                                          2 * style->xthickness,
+                                          view_size -
+                                          2 * style->ythickness);
+
+          g_object_set (list->data, "stock-size", icon_size, NULL);
+
+          g_free (icon_name);
+        }
+    }
+
+  gtk_tree_view_columns_autosize (tree_view->view);
+}
+
+
+/*  GimpContainerTreeView methods  */
+
+static void
+gimp_container_tree_view_real_edit_name (GimpContainerTreeView *tree_view)
+{
+  GtkTreeIter selected_iter;
+  gboolean    success = FALSE;
+
+  if (g_list_find (tree_view->priv->editable_cells,
+                   tree_view->priv->name_cell) &&
+      gimp_container_tree_view_get_selected_single (tree_view,
+                                                    &selected_iter))
+    {
+      GimpViewRenderer *renderer;
+
+      gtk_tree_model_get (tree_view->model, &selected_iter,
+                          GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                          -1);
+
+      if (gimp_viewable_is_name_editable (renderer->viewable))
+        {
+          GtkTreePath *path;
+
+          path = gtk_tree_model_get_path (tree_view->model, &selected_iter);
+
+          gtk_tree_view_set_cursor_on_cell (tree_view->view, path,
+                                            tree_view->main_column,
+                                            tree_view->priv->name_cell,
+                                            TRUE);
+
+          gtk_tree_path_free (path);
+
+          success = TRUE;
+        }
+
+      g_object_unref (renderer);
+    }
+
+  if (! success)
+    gtk_widget_error_bell (GTK_WIDGET (tree_view));
+}
+
+
+/*  callbacks  */
+
+static gboolean
+gimp_container_tree_view_edit_focus_out (GtkWidget *widget,
+                                         GdkEvent  *event,
+                                         gpointer   user_data)
+{
+  /*  When focusing out of a tree view, we want its content to be
+   *  updated as though it had been activated.
+   */
+  g_signal_emit_by_name (widget, "activate", 0);
+
+  return TRUE;
+}
+
+static void
+gimp_container_tree_view_name_started (GtkCellRendererText   *cell,
+                                       GtkCellEditable       *editable,
+                                       const gchar           *path_str,
+                                       GimpContainerTreeView *tree_view)
+{
+  GtkTreePath *path;
+  GtkTreeIter  iter;
+
+  path = gtk_tree_path_new_from_string (path_str);
+
+  g_signal_connect (GTK_ENTRY (editable), "focus-out-event",
+                    G_CALLBACK (gimp_container_tree_view_edit_focus_out),
+                    tree_view);
+
+  if (gtk_tree_model_get_iter (tree_view->model, &iter, path))
+    {
+      GimpViewRenderer *renderer;
+      const gchar      *real_name;
+
+      gtk_tree_model_get (tree_view->model, &iter,
+                          GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                          -1);
+
+      real_name = gimp_object_get_name (renderer->viewable);
+
+      g_object_unref (renderer);
+
+      gtk_entry_set_text (GTK_ENTRY (editable), real_name);
+    }
+
+  gtk_tree_path_free (path);
+}
+
+static void
+gimp_container_tree_view_name_canceled (GtkCellRendererText   *cell,
+                                        GimpContainerTreeView *tree_view)
+{
+  GtkTreeIter iter;
+
+  if (gimp_container_tree_view_get_selected_single (tree_view, &iter))
+    {
+      GimpViewRenderer *renderer;
+      gchar            *name;
+
+      gtk_tree_model_get (tree_view->model, &iter,
+                          GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                          -1);
+
+      name = gimp_viewable_get_description (renderer->viewable, NULL);
+
+      gtk_tree_store_set (GTK_TREE_STORE (tree_view->model), &iter,
+                          GIMP_CONTAINER_TREE_STORE_COLUMN_NAME, name,
+                          -1);
+
+      g_free (name);
+      g_object_unref (renderer);
+    }
+}
+
+static void
+gimp_container_tree_view_cursor_changed (GtkTreeView           *view,
+                                         GimpContainerTreeView *tree_view)
+{
+  gimp_container_tree_view_process_updates (tree_view);
+}
+
+static void
+gimp_container_tree_view_selection_changed (GtkTreeSelection      *selection,
+                                            GimpContainerTreeView *tree_view)
+{
+  GimpContainerView *view = GIMP_CONTAINER_VIEW (tree_view);
+  GList             *items;
+
+  gimp_container_tree_view_get_selected (view, &items);
+  gimp_container_view_multi_selected (view, items);
+  g_list_free (items);
+
+  if (items)
+    gimp_container_tree_view_process_updates (tree_view);
+}
+
+static GtkCellRenderer *
+gimp_container_tree_view_find_click_cell (GtkWidget         *widget,
+                                          GList             *cells,
+                                          GtkTreeViewColumn *column,
+                                          GdkRectangle      *column_area,
+                                          gint               tree_x,
+                                          gint               tree_y)
+{
+  GList    *list;
+  gboolean  rtl = (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL);
+
+  for (list = cells; list; list = g_list_next (list))
+    {
+      GtkCellRenderer *renderer = list->data;
+      gint             start;
+      gint             width;
+
+      if (gtk_cell_renderer_get_visible (renderer) &&
+          gtk_tree_view_column_cell_get_position (column, renderer,
+                                                  &start, &width))
+        {
+          gint xpad, ypad;
+          gint x;
+
+          gtk_cell_renderer_get_padding (renderer, &xpad, &ypad);
+
+          if (rtl)
+            x = column_area->x + column_area->width - start - width;
+          else
+            x = start + column_area->x;
+
+          if (tree_x >= x + xpad &&
+              tree_x <  x + width - xpad)
+            {
+              return renderer;
+            }
+        }
+    }
+
+  return NULL;
+}
+
+static gboolean
+gimp_container_tree_view_button_press (GtkWidget             *widget,
+                                       GdkEventButton        *bevent,
+                                       GimpContainerTreeView *tree_view)
+{
+  GimpContainerView *container_view = GIMP_CONTAINER_VIEW (tree_view);
+  GtkTreeViewColumn *column;
+  GtkTreePath       *path;
+  gboolean           handled        = TRUE;
+
+  tree_view->priv->dnd_renderer = NULL;
+
+  if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
+                                     bevent->x, bevent->y,
+                                     &path, &column, NULL, NULL))
+    {
+      GimpViewRenderer         *renderer;
+      GtkCellRenderer          *toggled_cell = NULL;
+      GimpCellRendererViewable *clicked_cell = NULL;
+      GtkCellRenderer          *edit_cell    = NULL;
+      GdkRectangle              column_area;
+      GtkTreeIter               iter;
+      gboolean                  multisel_mode;
+
+      handled       = TRUE;
+      multisel_mode = (gtk_tree_selection_get_mode (tree_view->priv->selection)
+                       == GTK_SELECTION_MULTIPLE);
+
+      if (! (bevent->state & (gimp_get_extend_selection_mask () |
+                              gimp_get_modify_selection_mask ())))
+        {
+          /*  don't chain up for multi-selection handling if none of
+           *  the participating modifiers is pressed, we implement
+           *  button_press completely ourselves for a reason and don't
+           *  want the default implementation mess up our state
+           */
+          multisel_mode = FALSE;
+        }
+
+      /* We need to grab focus after a button click, in order to make keyboard
+       * navigation possible.
+       * For single selection, grab must happen after we changed
+       * the selection (which will happen in this function) otherwise we end up
+       * first scrolling to the current selection. So we have a separate
+       * gtk_widget_grab_focus() at the end of the function.
+       */
+      if (multisel_mode && bevent->type == GDK_BUTTON_PRESS && ! gtk_widget_has_focus (widget))
+        gtk_widget_grab_focus (widget);
+
+      gtk_tree_model_get_iter (tree_view->model, &iter, path);
+
+      gtk_tree_model_get (tree_view->model, &iter,
+                          GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                          -1);
+
+      tree_view->priv->dnd_renderer = renderer;
+
+      gtk_tree_view_get_cell_area (tree_view->view, path,
+                                   column, &column_area);
+
+      gtk_tree_view_column_cell_set_cell_data (column,
+                                               tree_view->model,
+                                               &iter,
+                                               FALSE, FALSE);
+
+      if (bevent->button == 1                                     &&
+          gtk_tree_model_iter_has_child (tree_view->model, &iter) &&
+          column == gtk_tree_view_get_expander_column (tree_view->view))
+        {
+          GList *cells;
+
+          cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (column));
+
+          if (! gimp_container_tree_view_find_click_cell (widget,
+                                                          cells,
+                                                          column, &column_area,
+                                                          bevent->x, bevent->y))
+            {
+              /*  we didn't click on any cell, but we clicked on empty
+               *  space in the expander column of a row that has
+               *  children; let GtkTreeView process the button press
+               *  to maybe handle a click on an expander.
+               */
+              g_list_free (cells);
+              gtk_tree_path_free (path);
+              g_object_unref (renderer);
+
+              return FALSE;
+            }
+
+          g_list_free (cells);
+        }
+
+      toggled_cell =
+        gimp_container_tree_view_find_click_cell (widget,
+                                                  tree_view->priv->toggle_cells,
+                                                  column, &column_area,
+                                                  bevent->x, bevent->y);
+
+      if (! toggled_cell)
+        clicked_cell = (GimpCellRendererViewable *)
+          gimp_container_tree_view_find_click_cell (widget,
+                                                    tree_view->priv->renderer_cells,
+                                                    column, &column_area,
+                                                    bevent->x, bevent->y);
+
+      if (! toggled_cell && ! clicked_cell)
+        edit_cell =
+          gimp_container_tree_view_find_click_cell (widget,
+                                                    tree_view->priv->editable_cells,
+                                                    column, &column_area,
+                                                    bevent->x, bevent->y);
+
+      g_object_ref (tree_view);
+
+      if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
+        {
+          if (gimp_container_view_item_selected (container_view,
+                                                 renderer->viewable))
+            {
+              if (gimp_container_view_get_container (container_view))
+                gimp_container_view_item_context (container_view,
+                                                  renderer->viewable);
+            }
+        }
+      else if (bevent->button == 1)
+        {
+          if (bevent->type == GDK_BUTTON_PRESS)
+            {
+              /*  don't select item if a toggle was clicked */
+              if (! toggled_cell)
+                {
+                  gchar *path_str = gtk_tree_path_to_string (path);
+
+                  handled = FALSE;
+
+                  if (clicked_cell)
+                    handled =
+                      gimp_cell_renderer_viewable_pre_clicked (clicked_cell,
+                                                               path_str,
+                                                               bevent->state);
+
+                  if (! handled)
+                    {
+                      if (multisel_mode)
+                        {
+                          /* let parent do the work */
+                        }
+                      else
+                        {
+                          handled =
+                            gimp_container_view_item_selected (container_view,
+                                                               renderer->viewable);
+                        }
+                    }
+
+                  g_free (path_str);
+                }
+
+              /*  a callback invoked by selecting the item may have
+               *  destroyed us, so check if the container is still there
+               */
+              if (gimp_container_view_get_container (container_view))
+                {
+                  /*  another row may have been set by selecting  */
+                  gtk_tree_view_column_cell_set_cell_data (column,
+                                                           tree_view->model,
+                                                           &iter,
+                                                           FALSE, FALSE);
+
+                  if (toggled_cell || clicked_cell)
+                    {
+                      gchar *path_str = gtk_tree_path_to_string (path);
+
+                      if (toggled_cell)
+                        {
+                          if (GIMP_IS_CELL_RENDERER_TOGGLE (toggled_cell))
+                            {
+                              gimp_cell_renderer_toggle_clicked (GIMP_CELL_RENDERER_TOGGLE (toggled_cell),
+                                                                 path_str,
+                                                                 bevent->state);
+                            }
+                          else if (GIMP_IS_CELL_RENDERER_BUTTON (toggled_cell))
+                            {
+                              gimp_cell_renderer_button_clicked (GIMP_CELL_RENDERER_BUTTON (toggled_cell),
+                                                                 path_str,
+                                                                 bevent->state);
+                            }
+                        }
+                      else if (clicked_cell)
+                        {
+                          gimp_cell_renderer_viewable_clicked (clicked_cell,
+                                                               path_str,
+                                                               bevent->state);
+                        }
+
+                      g_free (path_str);
+                    }
+                }
+            }
+          else if (bevent->type == GDK_2BUTTON_PRESS)
+            {
+              gboolean success = TRUE;
+
+              /*  don't select item if a toggle was clicked */
+              if (! toggled_cell)
+                success = gimp_container_view_item_selected (container_view,
+                                                             renderer->viewable);
+
+              if (success)
+                {
+                  if (edit_cell)
+                    {
+                      if (gimp_viewable_is_name_editable (renderer->viewable))
+                        {
+                          gtk_tree_view_set_cursor_on_cell (tree_view->view,
+                                                            path,
+                                                            column, edit_cell,
+                                                            TRUE);
+                        }
+                      else
+                        {
+                          gtk_widget_error_bell (widget);
+                        }
+                    }
+                  else if (! toggled_cell &&
+                           ! (bevent->state & gimp_get_all_modifiers_mask ()))
+                    {
+                      /* Only activate if we're not in a toggled cell
+                       * and no modifier keys are pressed
+                       */
+                      gimp_container_view_item_activated (container_view,
+                                                          renderer->viewable);
+                    }
+                }
+            }
+        }
+      else if (bevent->button == 2)
+        {
+          if (bevent->type == GDK_BUTTON_PRESS)
+            {
+              if (clicked_cell)
+                {
+                  gchar *path_str = gtk_tree_path_to_string (path);
+
+                  gimp_cell_renderer_viewable_clicked (clicked_cell,
+                                                       path_str,
+                                                       bevent->state);
+
+                  g_free (path_str);
+                }
+            }
+        }
+
+      g_object_unref (tree_view);
+
+      gtk_tree_path_free (path);
+      g_object_unref (renderer);
+
+      handled = (multisel_mode ? handled : (bevent->type == GDK_BUTTON_RELEASE ? FALSE : TRUE));
+    }
+  else
+    {
+      if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
+        {
+          gimp_editor_popup_menu (GIMP_EDITOR (tree_view), NULL, NULL);
+        }
+
+      handled = TRUE;
+    }
+
+  if (handled && bevent->type == GDK_BUTTON_PRESS && ! gtk_widget_has_focus (widget))
+    gtk_widget_grab_focus (widget);
+
+  return handled;
+}
+
+static gboolean
+gimp_container_tree_view_tooltip (GtkWidget             *widget,
+                                  gint                   x,
+                                  gint                   y,
+                                  gboolean               keyboard_tip,
+                                  GtkTooltip            *tooltip,
+                                  GimpContainerTreeView *tree_view)
+{
+  GimpViewRenderer *renderer;
+  GtkTreeIter       iter;
+  GtkTreePath      *path;
+  gboolean          show_tip = FALSE;
+
+  if (! gtk_tree_view_get_tooltip_context (GTK_TREE_VIEW (widget), &x, &y,
+                                           keyboard_tip,
+                                           NULL, &path, &iter))
+    return FALSE;
+
+  gtk_tree_model_get (tree_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_tree_view_set_tooltip_row (GTK_TREE_VIEW (widget), tooltip, path);
+
+          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_tree_view_drag_viewable (GtkWidget    *widget,
+                                        GimpContext **context,
+                                        gpointer      data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (data);
+
+  if (context)
+    *context = gimp_container_view_get_context (GIMP_CONTAINER_VIEW (data));
+
+  if (tree_view->priv->dnd_renderer)
+    return tree_view->priv->dnd_renderer->viewable;
+
+  return NULL;
+}
+
+static GdkPixbuf *
+gimp_container_tree_view_drag_pixbuf (GtkWidget *widget,
+                                      gpointer   data)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (data);
+  GimpViewRenderer      *renderer  = tree_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_tree_view_get_selected_single (GimpContainerTreeView  *tree_view,
+                                              GtkTreeIter            *iter)
+{
+  GtkTreeSelection *selection;
+
+  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view->view));
+
+  if (gtk_tree_selection_count_selected_rows (selection) == 1)
+    {
+      GList    *selected_rows;
+
+      selected_rows = gtk_tree_selection_get_selected_rows (selection, NULL);
+
+      gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->model), iter,
+                               (GtkTreePath *) selected_rows->data);
+
+      g_list_free_full (selected_rows, (GDestroyNotify) gtk_tree_path_free);
+
+      return TRUE;
+    }
+  else
+    {
+      return FALSE;
+    }
+}
+
+static gint
+gimp_container_tree_view_get_selected (GimpContainerView    *view,
+                                       GList               **items)
+{
+  GimpContainerTreeView *tree_view = GIMP_CONTAINER_TREE_VIEW (view);
+  GtkTreeSelection      *selection;
+  gint                   selected_count;
+  GList                 *selected_rows;
+  GList                 *current_row;
+  GtkTreeIter            iter;
+  GimpViewRenderer      *renderer;
+
+  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view->view));
+  selected_count = gtk_tree_selection_count_selected_rows (selection);
+
+  if (items == NULL)
+    {
+      /* just provide selected count */
+      return selected_count;
+    }
+
+  selected_rows = gtk_tree_selection_get_selected_rows (selection, NULL);
+
+  *items = NULL;
+  for (current_row = selected_rows;
+       current_row;
+       current_row = g_list_next (current_row))
+    {
+      gtk_tree_model_get_iter (GTK_TREE_MODEL (tree_view->model), &iter,
+                               (GtkTreePath *) current_row->data);
+
+      gtk_tree_model_get (tree_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);
+    }
+
+  g_list_free_full (selected_rows, (GDestroyNotify) gtk_tree_path_free);
+
+  *items = g_list_reverse (*items);
+
+  return selected_count;
+}
+
+static void
+gimp_container_tree_view_row_expanded (GtkTreeView           *tree_view,
+                                       GtkTreeIter           *iter,
+                                       GtkTreePath           *path,
+                                       GimpContainerTreeView *view)
+{
+  GimpViewRenderer *renderer;
+
+  gtk_tree_model_get (view->model, iter,
+                      GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                      -1);
+  if (renderer)
+    {
+      gboolean expanded = gtk_tree_view_row_expanded (tree_view, path);
+
+      gimp_viewable_set_expanded (renderer->viewable,
+                                  expanded);
+      if (expanded)
+        {
+          g_signal_handlers_block_by_func (tree_view,
+                                           gimp_container_tree_view_row_expanded,
+                                           view);
+
+          gimp_container_tree_view_expand_rows (view->model, tree_view, iter);
+
+          g_signal_handlers_unblock_by_func (tree_view,
+                                             gimp_container_tree_view_row_expanded,
+                                             view);
+        }
+
+      g_object_unref (renderer);
+    }
+}
+
+static void
+gimp_container_tree_view_expand_rows (GtkTreeModel *model,
+                                      GtkTreeView  *view,
+                                      GtkTreeIter  *parent)
+{
+  GtkTreeIter iter;
+
+  if (gtk_tree_model_iter_children (model, &iter, parent))
+    do
+      if (gtk_tree_model_iter_has_child (model, &iter))
+        {
+          GimpViewRenderer *renderer;
+
+          gtk_tree_model_get (model, &iter,
+                              GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                              -1);
+          if (renderer)
+            {
+              GtkTreePath *path = gtk_tree_model_get_path (model, &iter);
+
+              if (gimp_viewable_get_expanded (renderer->viewable))
+                gtk_tree_view_expand_row (view, path, FALSE);
+              else
+                gtk_tree_view_collapse_row (view, path);
+
+              gtk_tree_path_free (path);
+              g_object_unref (renderer);
+            }
+
+          gimp_container_tree_view_expand_rows (model, view, &iter);
+        }
+    while (gtk_tree_model_iter_next (model, &iter));
+}
+
+static gboolean
+gimp_container_tree_view_monitor_changed_foreach (GtkTreeModel *model,
+                                                  GtkTreePath  *path,
+                                                  GtkTreeIter  *iter,
+                                                  gpointer      data)
+{
+  GimpViewRenderer *renderer;
+
+  gtk_tree_model_get (model, iter,
+                      GIMP_CONTAINER_TREE_STORE_COLUMN_RENDERER, &renderer,
+                      -1);
+
+  if (renderer)
+    {
+      gimp_view_renderer_free_color_transform (renderer);
+      g_object_unref (renderer);
+    }
+
+  return FALSE;
+}
+
+static void
+gimp_container_tree_view_monitor_changed (GimpContainerTreeView *view)
+{
+  gtk_tree_model_foreach (view->model,
+                          gimp_container_tree_view_monitor_changed_foreach,
+                          NULL);
+}
+
+static void
+gimp_container_tree_view_process_updates (GimpContainerTreeView *tree_view)
+{
+  GdkWindow *window = gtk_tree_view_get_bin_window (tree_view->view);
+
+  /* this is a hack, necessary to work around a gtk bug which can cause the
+   * window containing the tree view to stop processing updates until
+   * explicitly requested.
+   */
+  if (window)
+    gdk_window_process_updates (window, TRUE);
+}