[gtk+/combo-refactor: 7/42] Adding GtkTreeMenu class.
- From: Tristan Van Berkom <tvb src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk+/combo-refactor: 7/42] Adding GtkTreeMenu class.
- Date: Fri, 26 Nov 2010 14:51:45 +0000 (UTC)
commit ab9019493e6d807ad717867d93b740262a08bb9f
Author: Tristan Van Berkom <tristan van berkom gmail com>
Date: Thu Nov 18 17:33:23 2010 +0900
Adding GtkTreeMenu class.
Added GtkTreeMenu class to automatically render
a GtkTreeModel into a GtkMenu hierarchy (will be
used by GtkComboBox for its dropdown menus). Included
an accompanying testcase tests/testtreemenu
gtk/Makefile.am | 2 +
gtk/gtk.h | 1 +
gtk/gtktreemenu.c | 909 ++++++++++++++++++++++++++++++++++++++++++++++++++
gtk/gtktreemenu.h | 91 +++++
tests/Makefile.am | 8 +-
tests/testtreemenu.c | 245 ++++++++++++++
6 files changed, 1255 insertions(+), 1 deletions(-)
---
diff --git a/gtk/Makefile.am b/gtk/Makefile.am
index 6d3edd8..95003f6 100644
--- a/gtk/Makefile.am
+++ b/gtk/Makefile.am
@@ -315,6 +315,7 @@ gtk_public_h_sources = \
gtktoolshell.h \
gtktooltip.h \
gtktreednd.h \
+ gtktreemenu.h \
gtktreemodel.h \
gtktreemodelfilter.h \
gtktreemodelsort.h \
@@ -600,6 +601,7 @@ gtk_base_c_sources = \
gtktooltip.c \
gtktreedatalist.c \
gtktreednd.c \
+ gtktreemenu.c \
gtktreemodel.c \
gtktreemodelfilter.c \
gtktreemodelsort.c \
diff --git a/gtk/gtk.h b/gtk/gtk.h
index 4646fa5..67e36cd 100644
--- a/gtk/gtk.h
+++ b/gtk/gtk.h
@@ -196,6 +196,7 @@
#include <gtk/gtktooltip.h>
#include <gtk/gtktestutils.h>
#include <gtk/gtktreednd.h>
+#include <gtk/gtktreemenu.h>
#include <gtk/gtktreemodel.h>
#include <gtk/gtktreemodelfilter.h>
#include <gtk/gtktreemodelsort.h>
diff --git a/gtk/gtktreemenu.c b/gtk/gtktreemenu.c
new file mode 100644
index 0000000..cff4541
--- /dev/null
+++ b/gtk/gtktreemenu.c
@@ -0,0 +1,909 @@
+/* gtktreemenu.c
+ *
+ * Copyright (C) 2010 Openismus GmbH
+ *
+ * Authors:
+ * Tristan Van Berkom <tristanvb openismus com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+#include "gtkintl.h"
+#include "gtktreemenu.h"
+#include "gtkmenuitem.h"
+#include "gtkseparatormenuitem.h"
+#include "gtkcellareabox.h"
+#include "gtkcellareacontext.h"
+#include "gtkcelllayout.h"
+#include "gtkcellview.h"
+#include "gtkprivate.h"
+
+
+/* GObjectClass */
+static GObject *gtk_tree_menu_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties);
+static void gtk_tree_menu_dispose (GObject *object);
+static void gtk_tree_menu_finalize (GObject *object);
+static void gtk_tree_menu_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_tree_menu_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+/* GtkWidgetClass */
+static void gtk_tree_menu_get_preferred_width (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_tree_menu_get_preferred_height (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size);
+static void gtk_tree_menu_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation);
+
+/* GtkCellLayoutIface */
+static void gtk_tree_menu_cell_layout_init (GtkCellLayoutIface *iface);
+static void gtk_tree_menu_cell_layout_pack_start (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ gboolean expand);
+static void gtk_tree_menu_cell_layout_pack_end (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ gboolean expand);
+static GList *gtk_tree_menu_cell_layout_get_cells (GtkCellLayout *layout);
+static void gtk_tree_menu_cell_layout_clear (GtkCellLayout *layout);
+static void gtk_tree_menu_cell_layout_add_attribute (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ const gchar *attribute,
+ gint column);
+static void gtk_tree_menu_cell_layout_set_cell_data_func (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ GtkCellLayoutDataFunc func,
+ gpointer func_data,
+ GDestroyNotify destroy);
+static void gtk_tree_menu_cell_layout_clear_attributes (GtkCellLayout *layout,
+ GtkCellRenderer *cell);
+static void gtk_tree_menu_cell_layout_reorder (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ gint position);
+static GtkCellArea *gtk_tree_menu_cell_layout_get_area (GtkCellLayout *layout);
+
+
+/* TreeModel/DrawingArea callbacks and building menus/submenus */
+static void gtk_tree_menu_populate (GtkTreeMenu *menu);
+static GtkWidget *gtk_tree_menu_create_item (GtkTreeMenu *menu,
+ GtkTreeIter *iter);
+static void gtk_tree_menu_set_area (GtkTreeMenu *menu,
+ GtkCellArea *area);
+static void queue_resize_all (GtkWidget *menu);
+static void context_size_changed_cb (GtkCellAreaContext *context,
+ GParamSpec *pspec,
+ GtkWidget *menu);
+
+struct _GtkTreeMenuPrivate
+{
+ /* TreeModel and parent for this menu */
+ GtkTreeModel *model;
+ GtkTreeRowReference *root;
+
+ /* CellArea and context for this menu */
+ GtkCellArea *area;
+ GtkCellAreaContext *context;
+
+ gint last_alloc_width;
+ gint last_alloc_height;
+
+ /* Signals */
+ gulong size_changed_id;
+
+ /* Row separators */
+ GtkTreeViewRowSeparatorFunc row_separator_func;
+ gpointer row_separator_data;
+ GDestroyNotify row_separator_destroy;
+};
+
+enum {
+ PROP_0,
+ PROP_MODEL,
+ PROP_ROOT,
+ PROP_CELL_AREA
+};
+
+G_DEFINE_TYPE_WITH_CODE (GtkTreeMenu, gtk_tree_menu, GTK_TYPE_MENU,
+ G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
+ gtk_tree_menu_cell_layout_init));
+
+static void
+gtk_tree_menu_init (GtkTreeMenu *menu)
+{
+ GtkTreeMenuPrivate *priv;
+
+ menu->priv = G_TYPE_INSTANCE_GET_PRIVATE (menu,
+ GTK_TYPE_TREE_MENU,
+ GtkTreeMenuPrivate);
+ priv = menu->priv;
+}
+
+static void
+gtk_tree_menu_class_init (GtkTreeMenuClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
+
+ object_class->constructor = gtk_tree_menu_constructor;
+ object_class->dispose = gtk_tree_menu_dispose;
+ object_class->finalize = gtk_tree_menu_finalize;
+ object_class->set_property = gtk_tree_menu_set_property;
+ object_class->get_property = gtk_tree_menu_get_property;
+
+ widget_class->get_preferred_width = gtk_tree_menu_get_preferred_width;
+ widget_class->get_preferred_height = gtk_tree_menu_get_preferred_height;
+ widget_class->size_allocate = gtk_tree_menu_size_allocate;
+
+ g_object_class_install_property (object_class,
+ PROP_MODEL,
+ g_param_spec_object ("model",
+ P_("TreeMenu model"),
+ P_("The model for the tree menu"),
+ GTK_TYPE_TREE_MODEL,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_ROOT,
+ g_param_spec_boxed ("root",
+ P_("TreeMenu root row"),
+ P_("The TreeMenu will display children of the "
+ "specified root"),
+ GTK_TYPE_TREE_ROW_REFERENCE,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_CELL_AREA,
+ g_param_spec_object ("cell-area",
+ P_("Cell Area"),
+ P_("The GtkCellArea used to layout cells"),
+ GTK_TYPE_CELL_AREA,
+ GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+
+
+ g_type_class_add_private (object_class, sizeof (GtkTreeMenuPrivate));
+}
+
+/****************************************************************
+ * GObjectClass *
+ ****************************************************************/
+static GObject *
+gtk_tree_menu_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties)
+{
+ GObject *object;
+ GtkTreeMenu *menu;
+ GtkTreeMenuPrivate *priv;
+
+ object = G_OBJECT_CLASS (gtk_tree_menu_parent_class)->constructor
+ (type, n_construct_properties, construct_properties);
+
+ menu = GTK_TREE_MENU (object);
+ priv = menu->priv;
+
+ if (!priv->area)
+ {
+ GtkCellArea *area = gtk_cell_area_box_new ();
+
+ gtk_tree_menu_set_area (menu, area);
+ }
+
+ priv->context = gtk_cell_area_create_context (priv->area);
+ priv->size_changed_id =
+ g_signal_connect (priv->context, "notify",
+ G_CALLBACK (context_size_changed_cb), menu);
+
+
+ return object;
+}
+
+static void
+gtk_tree_menu_dispose (GObject *object)
+{
+ GtkTreeMenu *menu;
+ GtkTreeMenuPrivate *priv;
+
+ menu = GTK_TREE_MENU (object);
+ priv = menu->priv;
+
+ gtk_tree_menu_set_model (menu, NULL);
+ gtk_tree_menu_set_area (menu, NULL);
+
+ if (priv->context)
+ {
+ /* Disconnect signals */
+ g_signal_handler_disconnect (priv->context, priv->size_changed_id);
+
+ g_object_unref (priv->context);
+ priv->context = NULL;
+ priv->size_changed_id = 0;
+ }
+
+ G_OBJECT_CLASS (gtk_tree_menu_parent_class)->dispose (object);
+}
+
+static void
+gtk_tree_menu_finalize (GObject *object)
+{
+
+ G_OBJECT_CLASS (gtk_tree_menu_parent_class)->finalize (object);
+}
+
+static void
+gtk_tree_menu_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (object);
+
+ switch (prop_id)
+ {
+ case PROP_MODEL:
+ gtk_tree_menu_set_model (menu, g_value_get_object (value));
+ break;
+
+ case PROP_ROOT:
+ gtk_tree_menu_set_root (menu, g_value_get_boxed (value));
+ break;
+
+ case PROP_CELL_AREA:
+ /* Construct-only, can only be assigned once */
+ gtk_tree_menu_set_area (menu, (GtkCellArea *)g_value_get_object (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_tree_menu_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (object);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ switch (prop_id)
+ {
+ case PROP_MODEL:
+ g_value_set_object (value, priv->model);
+ break;
+
+ case PROP_ROOT:
+ g_value_set_boxed (value, priv->root);
+ break;
+
+ case PROP_CELL_AREA:
+ g_value_set_object (value, priv->area);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+/****************************************************************
+ * GtkWidgetClass *
+ ****************************************************************/
+
+/* We tell all the menu items to reserve space for the submenu
+ * indicator if there is at least one submenu, this way we ensure
+ * that every internal cell area gets allocated the
+ * same width (and requested height for the same appropriate width).
+ */
+static void
+sync_reserve_submenu_size (GtkTreeMenu *menu)
+{
+ GList *children, *l;
+ gboolean has_submenu = FALSE;
+
+ children = gtk_container_get_children (GTK_CONTAINER (menu));
+ for (l = children; l; l = l->next)
+ {
+ GtkMenuItem *item = l->data;
+
+ if (gtk_menu_item_get_submenu (item) != NULL)
+ {
+ has_submenu = TRUE;
+ break;
+ }
+ }
+
+ for (l = children; l; l = l->next)
+ {
+ GtkMenuItem *item = l->data;
+
+ gtk_menu_item_set_reserve_indicator (item, has_submenu);
+ }
+
+ g_list_free (children);
+}
+
+static void
+gtk_tree_menu_get_preferred_width (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (widget);
+ GtkTreeMenuPrivate *priv = menu->priv;
+ GtkTreePath *path = NULL;
+ GtkTreeIter iter;
+ gboolean valid = FALSE;
+
+ g_signal_handler_block (priv->context, priv->size_changed_id);
+
+ /* Before chaining up to the parent class and requesting the
+ * menu item/cell view sizes, we need to request the size of
+ * each row for this menu and make sure all the cellviews
+ * request enough space
+ */
+ gtk_cell_area_context_flush_preferred_width (priv->context);
+
+ sync_reserve_submenu_size (menu);
+
+ if (priv->model)
+ {
+ if (priv->root)
+ path = gtk_tree_row_reference_get_path (priv->root);
+
+ if (path)
+ {
+ GtkTreeIter parent;
+
+ if (gtk_tree_model_get_iter (priv->model, &parent, path))
+ valid = gtk_tree_model_iter_children (priv->model, &iter, &parent);
+
+ gtk_tree_path_free (path);
+ }
+ else
+ valid = gtk_tree_model_iter_children (priv->model, &iter, NULL);
+
+ while (valid)
+ {
+ gboolean is_separator = FALSE;
+
+ if (priv->row_separator_func)
+ is_separator =
+ priv->row_separator_func (priv->model, &iter, priv->row_separator_data);
+
+ if (!is_separator)
+ {
+ gtk_cell_area_apply_attributes (priv->area, priv->model, &iter, FALSE, FALSE);
+ gtk_cell_area_get_preferred_width (priv->area, priv->context, widget, NULL, NULL);
+ }
+
+ valid = gtk_tree_model_iter_next (priv->model, &iter);
+ }
+ }
+
+ gtk_cell_area_context_sum_preferred_width (priv->context);
+
+ g_signal_handler_unblock (priv->context, priv->size_changed_id);
+
+ /* Now that we've requested all the row's and updated priv->context properly, we can go ahead
+ * and calculate the sizes by requesting the menu items and thier cell views */
+ GTK_WIDGET_CLASS (gtk_tree_menu_parent_class)->get_preferred_width (widget, minimum_size, natural_size);
+}
+
+static void
+gtk_tree_menu_get_preferred_height (GtkWidget *widget,
+ gint *minimum_size,
+ gint *natural_size)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (widget);
+ GtkTreeMenuPrivate *priv = menu->priv;
+ GtkTreePath *path = NULL;
+ GtkTreeIter iter;
+ gboolean valid = FALSE;
+
+ g_signal_handler_block (priv->context, priv->size_changed_id);
+
+ /* Before chaining up to the parent class and requesting the
+ * menu item/cell view sizes, we need to request the size of
+ * each row for this menu and make sure all the cellviews
+ * request enough space
+ */
+ gtk_cell_area_context_flush_preferred_height (priv->context);
+
+ sync_reserve_submenu_size (menu);
+
+ if (priv->model)
+ {
+ if (priv->root)
+ path = gtk_tree_row_reference_get_path (priv->root);
+
+ if (path)
+ {
+ GtkTreeIter parent;
+
+ if (gtk_tree_model_get_iter (priv->model, &parent, path))
+ valid = gtk_tree_model_iter_children (priv->model, &iter, &parent);
+
+ gtk_tree_path_free (path);
+ }
+ else
+ valid = gtk_tree_model_iter_children (priv->model, &iter, NULL);
+
+ while (valid)
+ {
+ gboolean is_separator = FALSE;
+
+ if (priv->row_separator_func)
+ is_separator =
+ priv->row_separator_func (priv->model, &iter, priv->row_separator_data);
+
+ if (!is_separator)
+ {
+ gtk_cell_area_apply_attributes (priv->area, priv->model, &iter, FALSE, FALSE);
+ gtk_cell_area_get_preferred_height (priv->area, priv->context, widget, NULL, NULL);
+ }
+
+ valid = gtk_tree_model_iter_next (priv->model, &iter);
+ }
+ }
+
+ gtk_cell_area_context_sum_preferred_height (priv->context);
+
+ g_signal_handler_unblock (priv->context, priv->size_changed_id);
+
+ /* Now that we've requested all the row's and updated priv->context properly, we can go ahead
+ * and calculate the sizes by requesting the menu items and thier cell views */
+ GTK_WIDGET_CLASS (gtk_tree_menu_parent_class)->get_preferred_height (widget, minimum_size, natural_size);
+}
+
+static void
+gtk_tree_menu_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (widget);
+ GtkTreeMenuPrivate *priv = menu->priv;
+ gint new_width, new_height;
+
+ /* flush the context allocation */
+ gtk_cell_area_context_flush_allocation (priv->context);
+
+ /* Leave it to the first cell area to allocate the size of priv->context, since
+ * we configure the menu to allocate all children the same width this should work fine */
+ GTK_WIDGET_CLASS (gtk_tree_menu_parent_class)->size_allocate (widget, allocation);
+
+ /* In alot of cases the menu gets allocated while the children dont need
+ * any reallocation, in this case we need to restore the context allocation */
+ gtk_cell_area_context_get_allocation (priv->context, &new_width, &new_height);
+
+ if (new_width <= 0 && new_height <= 0)
+ {
+ gtk_cell_area_context_allocate_width (priv->context, priv->last_alloc_width);
+ gtk_cell_area_context_allocate_height (priv->context, priv->last_alloc_height);
+ }
+
+ /* Save the allocation for the next round */
+ gtk_cell_area_context_get_allocation (priv->context,
+ &priv->last_alloc_width,
+ &priv->last_alloc_height);
+}
+
+/****************************************************************
+ * GtkCellLayoutIface *
+ ****************************************************************/
+/* Just forward all the GtkCellLayoutIface methods to the
+ * underlying GtkCellArea
+ */
+static void
+gtk_tree_menu_cell_layout_init (GtkCellLayoutIface *iface)
+{
+ iface->pack_start = gtk_tree_menu_cell_layout_pack_start;
+ iface->pack_end = gtk_tree_menu_cell_layout_pack_end;
+ iface->get_cells = gtk_tree_menu_cell_layout_get_cells;
+ iface->clear = gtk_tree_menu_cell_layout_clear;
+ iface->add_attribute = gtk_tree_menu_cell_layout_add_attribute;
+ iface->set_cell_data_func = gtk_tree_menu_cell_layout_set_cell_data_func;
+ iface->clear_attributes = gtk_tree_menu_cell_layout_clear_attributes;
+ iface->reorder = gtk_tree_menu_cell_layout_reorder;
+ iface->get_area = gtk_tree_menu_cell_layout_get_area;
+}
+
+static void
+gtk_tree_menu_cell_layout_pack_start (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ gboolean expand)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->area), cell, expand);
+}
+
+static void
+gtk_tree_menu_cell_layout_pack_end (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ gboolean expand)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_pack_end (GTK_CELL_LAYOUT (priv->area), cell, expand);
+}
+
+static GList *
+gtk_tree_menu_cell_layout_get_cells (GtkCellLayout *layout)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ return gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (priv->area));
+}
+
+static void
+gtk_tree_menu_cell_layout_clear (GtkCellLayout *layout)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_clear (GTK_CELL_LAYOUT (priv->area));
+}
+
+static void
+gtk_tree_menu_cell_layout_add_attribute (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ const gchar *attribute,
+ gint column)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->area), cell, attribute, column);
+}
+
+static void
+gtk_tree_menu_cell_layout_set_cell_data_func (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ GtkCellLayoutDataFunc func,
+ gpointer func_data,
+ GDestroyNotify destroy)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->area), cell, func, func_data, destroy);
+}
+
+static void
+gtk_tree_menu_cell_layout_clear_attributes (GtkCellLayout *layout,
+ GtkCellRenderer *cell)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_clear_attributes (GTK_CELL_LAYOUT (priv->area), cell);
+}
+
+static void
+gtk_tree_menu_cell_layout_reorder (GtkCellLayout *layout,
+ GtkCellRenderer *cell,
+ gint position)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->area), cell, position);
+}
+
+static GtkCellArea *
+gtk_tree_menu_cell_layout_get_area (GtkCellLayout *layout)
+{
+ GtkTreeMenu *menu = GTK_TREE_MENU (layout);
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ return priv->area;
+}
+
+
+/****************************************************************
+ * TreeModel callbacks/populating menus *
+ ****************************************************************/
+static void
+context_size_changed_cb (GtkCellAreaContext *context,
+ GParamSpec *pspec,
+ GtkWidget *menu)
+{
+ if (!strcmp (pspec->name, "minimum-width") ||
+ !strcmp (pspec->name, "natural-width") ||
+ !strcmp (pspec->name, "minimum-height") ||
+ !strcmp (pspec->name, "natural-height"))
+ queue_resize_all (menu);
+}
+
+static void
+queue_resize_all (GtkWidget *menu)
+{
+ GList *children, *l;
+
+ children = gtk_container_get_children (GTK_CONTAINER (menu));
+ for (l = children; l; l = l->next)
+ {
+ GtkWidget *widget = l->data;
+
+ gtk_widget_queue_resize (widget);
+ }
+
+ g_list_free (children);
+
+ gtk_widget_queue_resize (menu);
+}
+
+
+static void
+gtk_tree_menu_set_area (GtkTreeMenu *menu,
+ GtkCellArea *area)
+{
+ GtkTreeMenuPrivate *priv = menu->priv;
+
+ if (priv->area)
+ g_object_unref (area);
+
+ priv->area = area;
+
+ if (priv->area)
+ g_object_ref_sink (area);
+}
+
+
+static GtkWidget *
+gtk_tree_menu_create_item (GtkTreeMenu *menu,
+ GtkTreeIter *iter)
+{
+ GtkTreeMenuPrivate *priv = menu->priv;
+ GtkWidget *item, *view;
+ GtkTreePath *path;
+
+ view = gtk_cell_view_new_with_context (priv->area, priv->context);
+ item = gtk_menu_item_new ();
+ gtk_widget_show (view);
+ gtk_widget_show (item);
+
+ path = gtk_tree_model_get_path (priv->model, iter);
+
+ gtk_cell_view_set_model (GTK_CELL_VIEW (view), priv->model);
+ gtk_cell_view_set_displayed_row (GTK_CELL_VIEW (view), path);
+
+ gtk_tree_path_free (path);
+
+ gtk_widget_show (view);
+ gtk_container_add (GTK_CONTAINER (item), view);
+
+ return item;
+}
+
+static void
+gtk_tree_menu_populate (GtkTreeMenu *menu)
+{
+ GtkTreeMenuPrivate *priv = menu->priv;
+ GtkTreePath *path = NULL;
+ GtkTreeIter parent;
+ GtkTreeIter iter;
+ gboolean valid = FALSE;
+ GtkWidget *menu_item;
+
+ if (!priv->model)
+ return;
+
+ if (priv->root)
+ path = gtk_tree_row_reference_get_path (priv->root);
+
+ if (path)
+ {
+ if (gtk_tree_model_get_iter (priv->model, &parent, path))
+ valid = gtk_tree_model_iter_children (priv->model, &iter, &parent);
+
+ gtk_tree_path_free (path);
+ }
+ else
+ valid = gtk_tree_model_iter_children (priv->model, &iter, NULL);
+
+ /* Create a menu item for every row at the current depth, add a GtkTreeMenu
+ * submenu for iters/items that have children */
+ while (valid)
+ {
+ gboolean is_separator = FALSE;
+
+ if (priv->row_separator_func)
+ is_separator =
+ priv->row_separator_func (priv->model, &iter,
+ priv->row_separator_data);
+
+ if (is_separator)
+ menu_item = gtk_separator_menu_item_new ();
+ else
+ {
+ menu_item = gtk_tree_menu_create_item (menu, &iter);
+
+ /* Add a GtkTreeMenu submenu to render the children of this row */
+ if (gtk_tree_model_iter_has_child (priv->model, &iter))
+ {
+ GtkTreePath *row_path;
+ GtkWidget *submenu;
+
+ row_path = gtk_tree_model_get_path (priv->model, &iter);
+ submenu = gtk_tree_menu_new_with_area (priv->area);
+
+ gtk_tree_menu_set_model (GTK_TREE_MENU (submenu), priv->model);
+ gtk_tree_menu_set_root (GTK_TREE_MENU (submenu), row_path);
+
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), submenu);
+
+ gtk_tree_path_free (row_path);
+ }
+ }
+
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_item);
+
+ valid = gtk_tree_model_iter_next (priv->model, &iter);
+ }
+}
+
+/****************************************************************
+ * API *
+ ****************************************************************/
+GtkWidget *
+gtk_tree_menu_new (void)
+{
+ return (GtkWidget *)g_object_new (GTK_TYPE_TREE_MENU, NULL);
+}
+
+GtkWidget *
+gtk_tree_menu_new_with_area (GtkCellArea *area)
+{
+ return (GtkWidget *)g_object_new (GTK_TYPE_TREE_MENU,
+ "area", area,
+ NULL);
+}
+
+void
+gtk_tree_menu_set_model (GtkTreeMenu *menu,
+ GtkTreeModel *model)
+{
+ GtkTreeMenuPrivate *priv;
+
+ g_return_if_fail (GTK_IS_TREE_MENU (menu));
+ g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
+
+ priv = menu->priv;
+
+ if (priv->model != model)
+ {
+ if (priv->model)
+ {
+ /* Disconnect signals */
+
+ g_object_unref (priv->model);
+ }
+
+ priv->model = model;
+
+ if (priv->model)
+ {
+ /* Connect signals */
+
+ g_object_ref (priv->model);
+ }
+
+ /* Changing the model in any way invalidates the currently set root,
+ * so we implicitly reset it to NULL here */
+ gtk_tree_menu_set_root (menu, NULL);
+
+ g_object_notify (G_OBJECT (menu), "model");
+ }
+}
+
+GtkTreeModel *
+gtk_tree_menu_get_model (GtkTreeMenu *menu)
+{
+ GtkTreeMenuPrivate *priv;
+
+ g_return_val_if_fail (GTK_IS_TREE_MENU (menu), NULL);
+
+ priv = menu->priv;
+
+ return priv->model;
+}
+
+void
+gtk_tree_menu_set_root (GtkTreeMenu *menu,
+ GtkTreePath *path)
+{
+ GtkTreeMenuPrivate *priv;
+
+ g_return_if_fail (GTK_IS_TREE_MENU (menu));
+ g_return_if_fail (path == NULL || menu->priv->model != NULL);
+
+ priv = menu->priv;
+
+ if (priv->root)
+ gtk_tree_row_reference_free (priv->root);
+
+ if (path)
+ priv->root = gtk_tree_row_reference_new (priv->model, path);
+ else
+ priv->root = NULL;
+
+ /* Destroy all the menu items for the previous root */
+ gtk_container_foreach (GTK_CONTAINER (menu),
+ (GtkCallback) gtk_widget_destroy, NULL);
+
+ /* Populate for the new root */
+ gtk_tree_menu_populate (menu);
+}
+
+GtkTreePath *
+gtk_tree_menu_get_root (GtkTreeMenu *menu)
+{
+ GtkTreeMenuPrivate *priv;
+
+ g_return_val_if_fail (GTK_IS_TREE_MENU (menu), NULL);
+
+ priv = menu->priv;
+
+ if (priv->root)
+ return gtk_tree_row_reference_get_path (priv->root);
+
+ return NULL;
+}
+
+void
+gtk_tree_menu_set_row_separator_func (GtkTreeMenu *menu,
+ GtkTreeViewRowSeparatorFunc func,
+ gpointer data,
+ GDestroyNotify destroy)
+{
+ GtkTreeMenuPrivate *priv;
+
+ g_return_if_fail (GTK_IS_TREE_MENU (menu));
+
+ priv = menu->priv;
+
+ if (priv->row_separator_destroy)
+ priv->row_separator_destroy (priv->row_separator_data);
+
+ priv->row_separator_func = func;
+ priv->row_separator_data = data;
+ priv->row_separator_destroy = destroy;
+}
+
+GtkTreeViewRowSeparatorFunc
+gtk_tree_menu_get_row_separator_func (GtkTreeMenu *menu)
+{
+ GtkTreeMenuPrivate *priv;
+
+ g_return_val_if_fail (GTK_IS_TREE_MENU (menu), NULL);
+
+ priv = menu->priv;
+
+ return priv->row_separator_func;
+}
diff --git a/gtk/gtktreemenu.h b/gtk/gtktreemenu.h
new file mode 100644
index 0000000..994e293
--- /dev/null
+++ b/gtk/gtktreemenu.h
@@ -0,0 +1,91 @@
+/* gtktreemenu.h
+ *
+ * Copyright (C) 2010 Openismus GmbH
+ *
+ * Authors:
+ * Tristan Van Berkom <tristanvb openismus com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#ifndef __GTK_TREE_MENU_H__
+#define __GTK_TREE_MENU_H__
+
+#include <gtk/gtkmenu.h>
+#include <gtk/gtktreemodel.h>
+#include <gtk/gtktreeview.h>
+#include <gtk/gtkcellarea.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_TREE_MENU (gtk_tree_menu_get_type ())
+#define GTK_TREE_MENU(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TREE_MENU, GtkTreeMenu))
+#define GTK_TREE_MENU_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TREE_MENU, GtkTreeMenuClass))
+#define GTK_IS_TREE_MENU(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TREE_MENU))
+#define GTK_IS_TREE_MENU_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TREE_MENU))
+#define GTK_TREE_MENU_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TREE_MENU, GtkTreeMenuClass))
+
+typedef struct _GtkTreeMenu GtkTreeMenu;
+typedef struct _GtkTreeMenuClass GtkTreeMenuClass;
+typedef struct _GtkTreeMenuPrivate GtkTreeMenuPrivate;
+
+
+struct _GtkTreeMenu
+{
+ GtkMenu parent_instance;
+
+ GtkTreeMenuPrivate *priv;
+};
+
+struct _GtkTreeMenuClass
+{
+ GtkMenuClass parent_class;
+
+ /* Padding for future expansion */
+ void (*_gtk_reserved1) (void);
+ void (*_gtk_reserved2) (void);
+ void (*_gtk_reserved3) (void);
+ void (*_gtk_reserved4) (void);
+ void (*_gtk_reserved5) (void);
+ void (*_gtk_reserved6) (void);
+ void (*_gtk_reserved7) (void);
+ void (*_gtk_reserved8) (void);
+};
+
+GType gtk_tree_menu_get_type (void) G_GNUC_CONST;
+
+GtkWidget *gtk_tree_menu_new (void);
+GtkWidget *gtk_tree_menu_new_with_area (GtkCellArea *area);
+void gtk_tree_menu_set_model (GtkTreeMenu *menu,
+ GtkTreeModel *model);
+GtkTreeModel *gtk_tree_menu_get_model (GtkTreeMenu *menu);
+void gtk_tree_menu_set_root (GtkTreeMenu *menu,
+ GtkTreePath *path);
+GtkTreePath *gtk_tree_menu_get_root (GtkTreeMenu *menu);
+
+void gtk_tree_menu_set_row_separator_func (GtkTreeMenu *menu,
+ GtkTreeViewRowSeparatorFunc func,
+ gpointer data,
+ GDestroyNotify destroy);
+GtkTreeViewRowSeparatorFunc gtk_tree_menu_get_row_separator_func (GtkTreeMenu *menu);
+
+G_END_DECLS
+
+#endif /* __GTK_TREE_MENU_H__ */
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 7815104..ba02227 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -96,7 +96,8 @@ noinst_PROGRAMS = $(TEST_PROGS) \
testexpander \
testvolumebutton \
testscrolledwindow \
- testcellarea
+ testcellarea \
+ testtreemenu
if USE_X11
noinst_PROGRAMS += testerrors
@@ -183,6 +184,7 @@ testtooltips_DEPENDENCIES = $(TEST_DEPS)
testvolumebutton_DEPENDENCIES = $(TEST_DEPS)
testscrolledwindow_DEPENDENCIES = $(TEST_DEPS)
testcellarea_DEPENDENCIES = $(TEST_DEPS)
+testtreemenu_DEPENDENCIES = $(TEST_DEPS)
testwindows_DEPENDENCIES = $(TEST_DEPS)
testexpand_DEPENDENCIES = $(TEST_DEPS)
testexpander_DEPENDENCIES = $(TEST_DEPS)
@@ -258,6 +260,7 @@ testtooltips_LDADD = $(LDADDS)
testvolumebutton_LDADD = $(LDADDS)
testscrolledwindow_LDADD = $(LDADDS)
testcellarea_LDADD = $(LDADDS)
+testtreemenu_LDADD = $(LDADDS)
testwindows_LDADD = $(LDADDS)
testexpand_LDADD = $(LDADDS)
testexpander_LDADD = $(LDADDS)
@@ -375,6 +378,9 @@ testcellarea_SOURCES = \
cellareascaffold.c \
cellareascaffold.h
+testtreemenu_SOURCES = \
+ testtreemenu.c
+
testoffscreen_SOURCES = \
gtkoffscreenbox.c \
gtkoffscreenbox.h \
diff --git a/tests/testtreemenu.c b/tests/testtreemenu.c
new file mode 100644
index 0000000..84c8564
--- /dev/null
+++ b/tests/testtreemenu.c
@@ -0,0 +1,245 @@
+#include <gtk/gtk.h>
+#include "cellareascaffold.h"
+
+/*******************************************************
+ * Simple Test *
+ *******************************************************/
+enum {
+ SIMPLE_COLUMN_NAME,
+ SIMPLE_COLUMN_ICON,
+ SIMPLE_COLUMN_DESCRIPTION,
+ N_SIMPLE_COLUMNS
+};
+
+static GtkCellRenderer *cell_1 = NULL, *cell_2 = NULL, *cell_3 = NULL;
+
+static GtkTreeModel *
+simple_tree_model (void)
+{
+ GtkTreeIter iter;
+ GtkTreeStore *store =
+ gtk_tree_store_new (N_SIMPLE_COLUMNS,
+ G_TYPE_STRING, /* name text */
+ G_TYPE_STRING, /* icon name */
+ G_TYPE_STRING); /* description text */
+
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ SIMPLE_COLUMN_NAME, "Alice in wonderland",
+ SIMPLE_COLUMN_ICON, "gtk-execute",
+ SIMPLE_COLUMN_DESCRIPTION,
+ "Twas brillig, and the slithy toves "
+ "did gyre and gimble in the wabe",
+ -1);
+
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ SIMPLE_COLUMN_NAME, "Marry Poppins",
+ SIMPLE_COLUMN_ICON, "gtk-yes",
+ SIMPLE_COLUMN_DESCRIPTION, "Supercalifragilisticexpialidocious",
+ -1);
+
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ SIMPLE_COLUMN_NAME, "George Bush",
+ SIMPLE_COLUMN_ICON, "gtk-dialog-warning",
+ SIMPLE_COLUMN_DESCRIPTION, "It's a very good question, very direct, "
+ "and I'm not going to answer it",
+ -1);
+
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ SIMPLE_COLUMN_NAME, "Whinnie the pooh",
+ SIMPLE_COLUMN_ICON, "gtk-stop",
+ SIMPLE_COLUMN_DESCRIPTION, "The most wonderful thing about tiggers, "
+ "is tiggers are wonderful things",
+ -1);
+
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ SIMPLE_COLUMN_NAME, "Aleister Crowley",
+ SIMPLE_COLUMN_ICON, "gtk-about",
+ SIMPLE_COLUMN_DESCRIPTION,
+ "Thou shalt do what thou wilt shall be the whole of the law",
+ -1);
+
+ gtk_tree_store_append (store, &iter, NULL);
+ gtk_tree_store_set (store, &iter,
+ SIMPLE_COLUMN_NAME, "Mark Twain",
+ SIMPLE_COLUMN_ICON, "gtk-quit",
+ SIMPLE_COLUMN_DESCRIPTION,
+ "Giving up smoking is the easiest thing in the world. "
+ "I know because I've done it thousands of times.",
+ -1);
+
+
+ return (GtkTreeModel *)store;
+}
+
+static GtkWidget *
+simple_tree_menu (void)
+{
+ GtkTreeModel *model;
+ GtkWidget *menu;
+ GtkCellArea *area;
+ GtkCellRenderer *renderer;
+
+ model = simple_tree_model ();
+
+ menu = gtk_tree_menu_new ();
+ gtk_tree_menu_set_model (GTK_TREE_MENU (menu), model);
+
+ area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (menu));
+
+ cell_1 = renderer = gtk_cell_renderer_text_new ();
+ gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area), renderer, FALSE, FALSE);
+ gtk_cell_area_attribute_connect (area, renderer, "text", SIMPLE_COLUMN_NAME);
+
+ cell_2 = renderer = gtk_cell_renderer_pixbuf_new ();
+ g_object_set (G_OBJECT (renderer), "xalign", 0.0F, NULL);
+ gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area), renderer, TRUE, FALSE);
+ gtk_cell_area_attribute_connect (area, renderer, "stock-id", SIMPLE_COLUMN_ICON);
+
+ cell_3 = renderer = gtk_cell_renderer_text_new ();
+ g_object_set (G_OBJECT (renderer),
+ "wrap-mode", PANGO_WRAP_WORD,
+ "wrap-width", 215,
+ NULL);
+ gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area), renderer, FALSE, TRUE);
+ gtk_cell_area_attribute_connect (area, renderer, "text", SIMPLE_COLUMN_DESCRIPTION);
+
+ return menu;
+}
+
+static void
+align_cell_2_toggled (GtkToggleButton *toggle,
+ GtkTreeMenu *menu)
+{
+ GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (menu));
+ gboolean align = gtk_toggle_button_get_active (toggle);
+
+ gtk_cell_area_cell_set (area, cell_2, "align", align, NULL);
+}
+
+static void
+align_cell_3_toggled (GtkToggleButton *toggle,
+ GtkTreeMenu *menu)
+{
+ GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (menu));
+ gboolean align = gtk_toggle_button_get_active (toggle);
+
+ gtk_cell_area_cell_set (area, cell_3, "align", align, NULL);
+}
+
+static void
+expand_cell_1_toggled (GtkToggleButton *toggle,
+ GtkTreeMenu *menu)
+{
+ GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (menu));
+ gboolean expand = gtk_toggle_button_get_active (toggle);
+
+ gtk_cell_area_cell_set (area, cell_1, "expand", expand, NULL);
+}
+
+static void
+expand_cell_2_toggled (GtkToggleButton *toggle,
+ GtkTreeMenu *menu)
+{
+ GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (menu));
+ gboolean expand = gtk_toggle_button_get_active (toggle);
+
+ gtk_cell_area_cell_set (area, cell_2, "expand", expand, NULL);
+}
+
+static void
+expand_cell_3_toggled (GtkToggleButton *toggle,
+ GtkTreeMenu *menu)
+{
+ GtkCellArea *area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (menu));
+ gboolean expand = gtk_toggle_button_get_active (toggle);
+
+ gtk_cell_area_cell_set (area, cell_3, "expand", expand, NULL);
+}
+
+static void
+tree_menu (void)
+{
+ GtkWidget *window, *widget;
+ GtkWidget *menu, *menubar, *vbox, *menuitem;
+
+ window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+ gtk_window_set_title (GTK_WINDOW (window), "GtkTreeMenu");
+
+ menu = simple_tree_menu ();
+
+ vbox = gtk_vbox_new (FALSE, 4);
+ gtk_widget_show (vbox);
+
+ menubar = gtk_menu_bar_new ();
+ menuitem = gtk_menu_item_new_with_label ("Tree");
+ gtk_widget_show (menu);
+ gtk_widget_show (menubar);
+ gtk_widget_show (menuitem);
+ gtk_menu_shell_append (GTK_MENU_SHELL (menubar), menuitem);
+ gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), menu);
+
+ gtk_box_pack_start (GTK_BOX (vbox), menubar, FALSE, FALSE, 0);
+
+ /* Now add some controls */
+ widget = gtk_check_button_new_with_label ("Align 2nd Cell");
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), FALSE);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "toggled",
+ G_CALLBACK (align_cell_2_toggled), menu);
+
+ widget = gtk_check_button_new_with_label ("Align 3rd Cell");
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "toggled",
+ G_CALLBACK (align_cell_3_toggled), menu);
+
+ widget = gtk_check_button_new_with_label ("Expand 1st Cell");
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), FALSE);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "toggled",
+ G_CALLBACK (expand_cell_1_toggled), menu);
+
+ widget = gtk_check_button_new_with_label ("Expand 2nd Cell");
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "toggled",
+ G_CALLBACK (expand_cell_2_toggled), menu);
+
+ widget = gtk_check_button_new_with_label ("Expand 3rd Cell");
+ gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), FALSE);
+ gtk_widget_show (widget);
+ gtk_box_pack_start (GTK_BOX (vbox), widget, FALSE, FALSE, 0);
+
+ g_signal_connect (G_OBJECT (widget), "toggled",
+ G_CALLBACK (expand_cell_3_toggled), menu);
+
+ gtk_container_add (GTK_CONTAINER (window), vbox);
+
+ gtk_widget_show (window);
+}
+
+int
+main (int argc, char *argv[])
+{
+ gtk_init (NULL, NULL);
+
+ tree_menu ();
+
+ gtk_main ();
+
+ return 0;
+}
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