gimp/app/widgets/gimppluginaction.c

243 lines
7.3 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimppluginaction.c
* Copyright (C) 2004 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "widgets-types.h"
#include "core/gimpmarshal.h"
#include "plug-in/gimppluginprocedure.h"
#include "gimppluginaction.h"
enum
{
SELECTED,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_PROCEDURE
};
static void gimp_plug_in_action_finalize (GObject *object);
static void gimp_plug_in_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_plug_in_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gimp_plug_in_action_activate (GtkAction *action);
static void gimp_plug_in_action_connect_proxy (GtkAction *action,
GtkWidget *proxy);
G_DEFINE_TYPE (GimpPlugInAction, gimp_plug_in_action, GIMP_TYPE_ACTION)
#define parent_class gimp_plug_in_action_parent_class
static guint action_signals[LAST_SIGNAL] = { 0 };
static void
gimp_plug_in_action_class_init (GimpPlugInActionClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkActionClass *action_class = GTK_ACTION_CLASS (klass);
object_class->finalize = gimp_plug_in_action_finalize;
object_class->set_property = gimp_plug_in_action_set_property;
object_class->get_property = gimp_plug_in_action_get_property;
action_class->activate = gimp_plug_in_action_activate;
action_class->connect_proxy = gimp_plug_in_action_connect_proxy;
g_object_class_install_property (object_class, PROP_PROCEDURE,
g_param_spec_object ("procedure",
NULL, NULL,
GIMP_TYPE_PLUG_IN_PROCEDURE,
GIMP_PARAM_READWRITE));
action_signals[SELECTED] =
g_signal_new ("selected",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpPlugInActionClass, selected),
NULL, NULL,
gimp_marshal_VOID__OBJECT,
G_TYPE_NONE, 1,
GIMP_TYPE_PLUG_IN_PROCEDURE);
}
static void
gimp_plug_in_action_init (GimpPlugInAction *action)
{
action->procedure = NULL;
}
static void
gimp_plug_in_action_finalize (GObject *object)
{
GimpPlugInAction *action = GIMP_PLUG_IN_ACTION (object);
if (action->procedure)
{
g_object_unref (action->procedure);
action->procedure = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_plug_in_action_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GimpPlugInAction *action = GIMP_PLUG_IN_ACTION (object);
switch (prop_id)
{
case PROP_PROCEDURE:
g_value_set_object (value, action->procedure);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gimp_plug_in_action_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GimpPlugInAction *action = GIMP_PLUG_IN_ACTION (object);
switch (prop_id)
{
case PROP_PROCEDURE:
if (action->procedure)
g_object_unref (action->procedure);
action->procedure = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gimp_plug_in_action_activate (GtkAction *action)
{
GimpPlugInAction *plug_in_action = GIMP_PLUG_IN_ACTION (action);
/* Not all actions have procedures associated with them, for example
* unused "plug-in-recent-[N]" actions, so check for NULL before we
* invoke the plug-in action
*/
if (plug_in_action->procedure)
gimp_plug_in_action_selected (plug_in_action, plug_in_action->procedure);
}
static void
gimp_plug_in_action_connect_proxy (GtkAction *action,
GtkWidget *proxy)
{
GimpPlugInAction *plug_in_action = GIMP_PLUG_IN_ACTION (action);
GTK_ACTION_CLASS (parent_class)->connect_proxy (action, proxy);
if (GTK_IS_IMAGE_MENU_ITEM (proxy) && plug_in_action->procedure)
{
GdkPixbuf *pixbuf;
pixbuf = gimp_plug_in_procedure_get_pixbuf (plug_in_action->procedure);
if (pixbuf)
{
GtkSettings *settings = gtk_widget_get_settings (proxy);
gint width;
gint height;
GtkWidget *image;
gtk_icon_size_lookup_for_settings (settings, GTK_ICON_SIZE_MENU,
&width, &height);
if (width != gdk_pixbuf_get_width (pixbuf) ||
height != gdk_pixbuf_get_height (pixbuf))
{
GdkPixbuf *copy;
copy = gdk_pixbuf_scale_simple (pixbuf, width, height,
GDK_INTERP_BILINEAR);
g_object_unref (pixbuf);
pixbuf = copy;
}
image = gtk_image_new_from_pixbuf (pixbuf);
gtk_image_menu_item_set_image (GTK_IMAGE_MENU_ITEM (proxy), image);
g_object_unref (pixbuf);
}
}
}
/* public functions */
GimpPlugInAction *
gimp_plug_in_action_new (const gchar *name,
const gchar *label,
const gchar *tooltip,
const gchar *stock_id,
GimpPlugInProcedure *procedure)
{
return g_object_new (GIMP_TYPE_PLUG_IN_ACTION,
"name", name,
"label", label,
"tooltip", tooltip,
"stock-id", stock_id,
"procedure", procedure,
NULL);
}
void
gimp_plug_in_action_selected (GimpPlugInAction *action,
GimpPlugInProcedure *procedure)
{
g_return_if_fail (GIMP_IS_PLUG_IN_ACTION (action));
g_signal_emit (action, action_signals[SELECTED], 0, procedure);
}