gimp/app/widgets/gimpmenuitem.c

200 lines
6.5 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpmenuitem.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 <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpmarshal.h"
#include "core/gimpviewable.h"
#include "gimpdnd.h"
#include "gimpmenuitem.h"
#include "gimppreview.h"
#include "gimppreviewrenderer.h"
static void gimp_menu_item_class_init (GimpMenuItemClass *klass);
static void gimp_menu_item_init (GimpMenuItem *menu_item);
static void gimp_menu_item_set_viewable (GimpMenuItem *menu_item,
GimpViewable *viewable);
static void gimp_menu_item_real_set_viewable (GimpMenuItem *menu_item,
GimpViewable *viewable);
static void gimp_menu_item_name_changed (GimpViewable *viewable,
GimpMenuItem *menu_item);
static GimpViewable * gimp_menu_item_drag_viewable (GtkWidget *widget,
gpointer data);
static GtkMenuItemClass *parent_class = NULL;
GType
gimp_menu_item_get_type (void)
{
static GType menu_item_type = 0;
if (!menu_item_type)
{
static const GTypeInfo menu_item_info =
{
sizeof (GimpMenuItemClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_menu_item_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpMenuItem),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_menu_item_init,
};
menu_item_type = g_type_register_static (GTK_TYPE_MENU_ITEM,
"GimpMenuItem",
&menu_item_info, 0);
}
return menu_item_type;
}
static void
gimp_menu_item_class_init (GimpMenuItemClass *klass)
{
parent_class = g_type_class_peek_parent (klass);
klass->set_viewable = gimp_menu_item_real_set_viewable;
}
static void
gimp_menu_item_init (GimpMenuItem *menu_item)
{
menu_item->hbox = gtk_hbox_new (FALSE, 4);
gtk_container_add (GTK_CONTAINER (menu_item), menu_item->hbox);
gtk_widget_show (menu_item->hbox);
menu_item->preview = NULL;
menu_item->name_label = NULL;
menu_item->preview_size = 0;
menu_item->preview_border_width = 1;
}
GtkWidget *
gimp_menu_item_new (GimpViewable *viewable,
gint preview_size,
gint preview_border_width)
{
GimpMenuItem *menu_item;
g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), NULL);
g_return_val_if_fail (preview_size > 0 &&
preview_size <= GIMP_VIEWABLE_MAX_POPUP_SIZE, NULL);
g_return_val_if_fail (preview_border_width >= 0 &&
preview_border_width <= GIMP_PREVIEW_MAX_BORDER_WIDTH,
NULL);
menu_item = g_object_new (GIMP_TYPE_MENU_ITEM, NULL);
menu_item->preview_size = preview_size;
menu_item->preview_border_width = preview_border_width;
gimp_menu_item_set_viewable (menu_item, viewable);
return GTK_WIDGET (menu_item);
}
static void
gimp_menu_item_set_viewable (GimpMenuItem *menu_item,
GimpViewable *viewable)
{
GIMP_MENU_ITEM_GET_CLASS (menu_item)->set_viewable (menu_item, viewable);
}
static void
gimp_menu_item_real_set_viewable (GimpMenuItem *menu_item,
GimpViewable *viewable)
{
menu_item->preview = gimp_preview_new (viewable,
menu_item->preview_size,
menu_item->preview_border_width,
FALSE);
gtk_widget_set_size_request (menu_item->preview,
menu_item->preview_size +
2 * menu_item->preview_border_width,
menu_item->preview_size +
2 * menu_item->preview_border_width);
gtk_box_pack_start (GTK_BOX (menu_item->hbox), menu_item->preview,
FALSE, FALSE, 0);
gtk_widget_show (menu_item->preview);
menu_item->name_label = gtk_label_new (NULL);
gtk_box_pack_start (GTK_BOX (menu_item->hbox), menu_item->name_label,
FALSE, FALSE, 0);
gtk_widget_show (menu_item->name_label);
gimp_menu_item_name_changed (viewable, menu_item);
g_signal_connect_object (viewable,
GIMP_VIEWABLE_GET_CLASS (viewable)->name_changed_signal,
G_CALLBACK (gimp_menu_item_name_changed),
menu_item, 0);
gimp_dnd_drag_source_set_by_type (GTK_WIDGET (menu_item),
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
G_TYPE_FROM_INSTANCE (viewable),
GDK_ACTION_MOVE | GDK_ACTION_COPY);
gimp_dnd_viewable_source_set (GTK_WIDGET (menu_item),
G_TYPE_FROM_INSTANCE (viewable),
gimp_menu_item_drag_viewable,
NULL);
}
static void
gimp_menu_item_name_changed (GimpViewable *viewable,
GimpMenuItem *menu_item)
{
gchar *name = NULL;
gchar *tooltip = NULL;
name = gimp_viewable_get_description (viewable, &tooltip);
gtk_label_set_text (GTK_LABEL (menu_item->name_label), name);
gimp_help_set_help_data (GTK_WIDGET (menu_item), tooltip, NULL);
g_free (name);
g_free (tooltip);
}
static GimpViewable *
gimp_menu_item_drag_viewable (GtkWidget *widget,
gpointer data)
{
return GIMP_PREVIEW (GIMP_MENU_ITEM (widget)->preview)->viewable;
}