gimp/app/core/gimpobject.c

209 lines
4.6 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* 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 <string.h>
#include <gtk/gtk.h>
#include "core-types.h"
#include "gimpobject.h"
enum
{
NAME_CHANGED,
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_NAME
};
static void gimp_object_class_init (GimpObjectClass *klass);
static void gimp_object_init (GimpObject *object);
static void gimp_object_destroy (GtkObject *object);
static void gimp_object_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static void gimp_object_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id);
static guint object_signals[LAST_SIGNAL] = { 0 };
static GtkObjectClass *parent_class = NULL;
GtkType
gimp_object_get_type (void)
{
static GtkType object_type = 0;
if (! object_type)
{
GtkTypeInfo object_info =
{
"GimpObject",
sizeof (GimpObject),
sizeof (GimpObjectClass),
(GtkClassInitFunc) gimp_object_class_init,
(GtkObjectInitFunc) gimp_object_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
object_type = gtk_type_unique (GTK_TYPE_OBJECT, &object_info);
}
return object_type;
}
static void
gimp_object_class_init (GimpObjectClass *klass)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) klass;
parent_class = gtk_type_class (GTK_TYPE_OBJECT);
gtk_object_add_arg_type ("GimpObject::name", GTK_TYPE_STRING,
GTK_ARG_READWRITE, ARG_NAME);
object_signals[NAME_CHANGED] =
gtk_signal_new ("name_changed",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (GimpObjectClass,
name_changed),
gtk_signal_default_marshaller,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, object_signals, LAST_SIGNAL);
object_class->destroy = gimp_object_destroy;
object_class->set_arg = gimp_object_set_arg;
object_class->get_arg = gimp_object_get_arg;
klass->name_changed = NULL;
}
static void
gimp_object_init (GimpObject *object)
{
object->name = NULL;
}
static void
gimp_object_destroy (GtkObject *object)
{
GimpObject *gimp_object;
gimp_object = GIMP_OBJECT (object);
g_free (gimp_object->name);
gimp_object->name = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_object_set_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GimpObject *gimp_object;
gimp_object = GIMP_OBJECT (object);
switch (arg_id)
{
case ARG_NAME:
gimp_object_set_name (gimp_object, GTK_VALUE_STRING (*arg));
break;
default:
break;
}
}
static void
gimp_object_get_arg (GtkObject *object,
GtkArg *arg,
guint arg_id)
{
GimpObject *gimp_object;
gimp_object = GIMP_OBJECT (object);
switch (arg_id)
{
case ARG_NAME:
GTK_VALUE_STRING (*arg) = g_strdup (gimp_object->name);
break;
default:
arg->type = GTK_TYPE_INVALID;
break;
}
}
void
gimp_object_set_name (GimpObject *object,
const gchar *name)
{
g_return_if_fail (object);
g_return_if_fail (GIMP_IS_OBJECT (object));
if ((!object->name && !name) ||
(object->name && name && !strcmp (object->name, name)))
return;
g_free (object->name);
object->name = g_strdup (name);
gimp_object_name_changed (object);
}
const gchar *
gimp_object_get_name (const GimpObject *object)
{
g_return_val_if_fail (object, NULL);
g_return_val_if_fail (GIMP_IS_OBJECT (object), NULL);
return object->name;
}
void
gimp_object_name_changed (GimpObject *object)
{
g_return_if_fail (object);
g_return_if_fail (GIMP_IS_OBJECT (object));
gtk_signal_emit (GTK_OBJECT (object), object_signals[NAME_CHANGED]);
}