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gimp/app/widgets/gimpcontainermenuimpl.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcontainermenuimpl.c
* Copyright (C) 2001 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdio.h>
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpviewable.h"
#include "gimpcontainermenuimpl.h"
#include "gimpmenuitem.h"
#include "gimppreview.h"
#include "gimppreviewrenderer.h"
static void gimp_container_menu_impl_class_init (GimpContainerMenuImplClass *klass);
static void gimp_container_menu_impl_init (GimpContainerMenuImpl *panel);
static gpointer gimp_container_menu_impl_insert_item (GimpContainerMenu *view,
GimpViewable *viewable,
gint index);
static void gimp_container_menu_impl_remove_item (GimpContainerMenu *view,
GimpViewable *viewable,
gpointer insert_data);
static void gimp_container_menu_impl_reorder_item (GimpContainerMenu *view,
GimpViewable *viewable,
gint new_index,
gpointer insert_data);
static void gimp_container_menu_impl_select_item (GimpContainerMenu *view,
GimpViewable *viewable,
gpointer insert_data);
static void gimp_container_menu_impl_clear_items (GimpContainerMenu *view);
static void gimp_container_menu_impl_set_preview_size (GimpContainerMenu *view);
static void gimp_container_menu_impl_set_history (GimpContainerMenu *view,
gint history);
static void gimp_container_menu_impl_item_selected (GtkWidget *widget,
gpointer data);
static GimpContainerMenuClass *parent_class = NULL;
GType
gimp_container_menu_impl_get_type (void)
{
static GType menu_type = 0;
if (! menu_type)
{
static const GTypeInfo menu_info =
{
sizeof (GimpContainerMenuImplClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_container_menu_impl_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpContainerMenuImpl),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_container_menu_impl_init,
};
menu_type = g_type_register_static (GIMP_TYPE_CONTAINER_MENU,
"GimpContainerMenuImpl",
&menu_info, 0);
}
return menu_type;
}
static void
gimp_container_menu_impl_class_init (GimpContainerMenuImplClass *klass)
{
GimpContainerMenuClass *container_menu_class;
container_menu_class = GIMP_CONTAINER_MENU_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
container_menu_class->insert_item = gimp_container_menu_impl_insert_item;
container_menu_class->remove_item = gimp_container_menu_impl_remove_item;
container_menu_class->reorder_item = gimp_container_menu_impl_reorder_item;
container_menu_class->select_item = gimp_container_menu_impl_select_item;
container_menu_class->clear_items = gimp_container_menu_impl_clear_items;
container_menu_class->set_preview_size = gimp_container_menu_impl_set_preview_size;
}
static void
gimp_container_menu_impl_init (GimpContainerMenuImpl *menu_impl)
{
menu_impl->empty_item = NULL;
}
GtkWidget *
gimp_container_menu_new (GimpContainer *container,
GimpContext *context,
gint preview_size,
gint preview_border_width)
{
GimpContainerMenuImpl *menu_impl;
GimpContainerMenu *menu;
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 (preview_size > 0 &&
preview_size <= GIMP_VIEWABLE_MAX_MENU_SIZE, NULL);
g_return_val_if_fail (preview_border_width >= 0 &&
preview_border_width <= GIMP_PREVIEW_MAX_BORDER_WIDTH,
NULL);
menu_impl = g_object_new (GIMP_TYPE_CONTAINER_MENU_IMPL, NULL);
menu = GIMP_CONTAINER_MENU (menu_impl);
menu->preview_size = preview_size;
menu->preview_border_width = preview_border_width;
menu_impl->empty_item = gtk_menu_item_new_with_label ("(none)");
gtk_widget_set_size_request (menu_impl->empty_item,
-1,
preview_size +
2 * preview_border_width +
2 * menu_impl->empty_item->style->ythickness);
gtk_widget_set_sensitive (menu_impl->empty_item, FALSE);
gtk_widget_show (menu_impl->empty_item);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menu_impl->empty_item);
if (container)
gimp_container_menu_set_container (menu, container);
if (context)
gimp_container_menu_set_context (menu, context);
return GTK_WIDGET (menu_impl);
}
/* GimpContainerMenu methods */
static gpointer
gimp_container_menu_impl_insert_item (GimpContainerMenu *menu,
GimpViewable *viewable,
gint index)
{
GtkWidget *menu_item;
menu_item = gimp_menu_item_new (viewable,
menu->preview_size,
menu->preview_border_width);
g_signal_connect (menu_item, "activate",
G_CALLBACK (gimp_container_menu_impl_item_selected),
menu);
if (index == -1)
gtk_menu_shell_insert (GTK_MENU_SHELL (menu), menu_item, -1);
else
gtk_menu_shell_insert (GTK_MENU_SHELL (menu), menu_item, index + 1);
gtk_widget_show (menu_item);
return (gpointer) menu_item;
}
static void
gimp_container_menu_impl_remove_item (GimpContainerMenu *menu,
GimpViewable *viewable,
gpointer insert_data)
{
GtkWidget *menu_item;
if (insert_data)
menu_item = GTK_WIDGET (insert_data);
else
menu_item = NULL;
if (menu_item)
{
gboolean active;
active = (gtk_menu_get_active (GTK_MENU (menu)) == menu_item);
if (g_list_length (GTK_MENU_SHELL (menu)->children) == 2)
gtk_widget_show (GIMP_CONTAINER_MENU_IMPL (menu)->empty_item);
gtk_container_remove (GTK_CONTAINER (menu), menu_item);
if (active)
gimp_container_menu_impl_set_history (menu, 0);
}
}
static void
gimp_container_menu_impl_reorder_item (GimpContainerMenu *menu,
GimpViewable *viewable,
gint new_index,
gpointer insert_data)
{
GtkWidget *menu_item;
if (insert_data)
menu_item = GTK_WIDGET (insert_data);
else
menu_item = NULL;
if (menu_item)
{
gboolean active;
active = (gtk_menu_get_active (GTK_MENU (menu)) == menu_item);
gtk_menu_reorder_child (GTK_MENU (menu),
GTK_WIDGET (menu_item), new_index + 1);
if (active)
gimp_container_menu_impl_set_history (menu, new_index + 1);
}
}
static void
gimp_container_menu_impl_select_item (GimpContainerMenu *menu,
GimpViewable *viewable,
gpointer insert_data)
{
GtkWidget *menu_item;
gint index;
if (insert_data)
menu_item = GTK_WIDGET (insert_data);
else
menu_item = NULL;
if (menu_item)
{
gtk_widget_hide (GIMP_CONTAINER_MENU_IMPL (menu)->empty_item);
index = gimp_container_get_child_index (menu->container,
GIMP_OBJECT (viewable));
gimp_container_menu_impl_set_history (menu, index + 1);
}
else
{
gtk_widget_show (GIMP_CONTAINER_MENU_IMPL (menu)->empty_item);
gimp_container_menu_impl_set_history (menu, 0);
}
}
static void
gimp_container_menu_impl_clear_items (GimpContainerMenu *menu)
{
while (GTK_MENU_SHELL (menu)->children)
{
gtk_container_remove (GTK_CONTAINER (menu),
GTK_WIDGET (GTK_MENU_SHELL (menu)->children->data));
}
gtk_widget_show (GIMP_CONTAINER_MENU_IMPL (menu)->empty_item);
if (GIMP_CONTAINER_MENU_CLASS (parent_class)->clear_items)
GIMP_CONTAINER_MENU_CLASS (parent_class)->clear_items (menu);
}
static void
gimp_container_menu_impl_set_preview_size (GimpContainerMenu *menu)
{
GList *list;
for (list = GTK_MENU_SHELL (menu)->children;
list;
list = g_list_next (list))
{
if (GIMP_IS_MENU_ITEM (list->data))
{
GimpMenuItem *menu_item = GIMP_MENU_ITEM (list->data);
gimp_preview_renderer_set_size (GIMP_PREVIEW (menu_item->preview)->renderer,
menu->preview_size,
menu->preview_border_width);
}
}
}
static void
gimp_container_menu_impl_set_history (GimpContainerMenu *menu,
gint history)
{
GtkWidget *parent;
parent = gtk_menu_get_attach_widget (GTK_MENU (menu));
if (parent && GTK_IS_OPTION_MENU (parent))
{
gtk_option_menu_set_history (GTK_OPTION_MENU (parent), history);
}
else
{
gtk_menu_set_active (GTK_MENU (menu), history);
}
}
/* GtkMenuItem callbacks */
static void
gimp_container_menu_impl_item_selected (GtkWidget *widget,
gpointer data)
{
GimpMenuItem *menu_item;
menu_item = GIMP_MENU_ITEM (widget);
gimp_container_menu_item_selected (GIMP_CONTAINER_MENU (data),
GIMP_PREVIEW (menu_item->preview)->viewable);
}
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