gimp/app/core/gimpchannelpropundo.c

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/* Gimp - The GNU Image Manipulation Program
* Copyright (C) 1995 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 <glib-object.h>
#include "libgimpbase/gimpbase.h"
#include "core-types.h"
#include "gimpimage.h"
#include "gimpchannel.h"
#include "gimpchannelpropundo.h"
static GObject * gimp_channel_prop_undo_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_channel_prop_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
G_DEFINE_TYPE (GimpChannelPropUndo, gimp_channel_prop_undo, GIMP_TYPE_ITEM_UNDO)
#define parent_class gimp_channel_prop_undo_parent_class
static void
gimp_channel_prop_undo_class_init (GimpChannelPropUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
object_class->constructor = gimp_channel_prop_undo_constructor;
undo_class->pop = gimp_channel_prop_undo_pop;
}
static void
gimp_channel_prop_undo_init (GimpChannelPropUndo *undo)
{
}
static GObject *
gimp_channel_prop_undo_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpChannelPropUndo *channel_prop_undo;
GimpImage *image;
GimpChannel *channel;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
channel_prop_undo = GIMP_CHANNEL_PROP_UNDO (object);
g_assert (GIMP_IS_CHANNEL (GIMP_ITEM_UNDO (object)->item));
image = GIMP_UNDO (object)->image;
channel = GIMP_CHANNEL (GIMP_ITEM_UNDO (object)->item);
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_CHANNEL_REPOSITION:
channel_prop_undo->position = gimp_image_get_channel_index (image, channel);
break;
case GIMP_UNDO_CHANNEL_COLOR:
gimp_channel_get_color (channel, &channel_prop_undo->color);
break;
default:
g_assert_not_reached ();
}
return object;
}
static void
gimp_channel_prop_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpChannelPropUndo *channel_prop_undo = GIMP_CHANNEL_PROP_UNDO (undo);
GimpChannel *channel = GIMP_CHANNEL (GIMP_ITEM_UNDO (undo)->item);
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
switch (undo->undo_type)
{
case GIMP_UNDO_CHANNEL_REPOSITION:
{
gint position;
position = gimp_image_get_channel_index (undo->image, channel);
gimp_image_position_channel (undo->image, channel,
channel_prop_undo->position,
FALSE, NULL);
channel_prop_undo->position = position;
}
break;
case GIMP_UNDO_CHANNEL_COLOR:
{
GimpRGB color;
gimp_channel_get_color (channel, &color);
gimp_channel_set_color (channel, &channel_prop_undo->color, FALSE);
channel_prop_undo->color = color;
}
break;
default:
g_assert_not_reached ();
}
}