gimp/app/core/gimpgrouplayerundo.c

143 lines
4.3 KiB
C

/* 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 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 <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "core-types.h"
#include "gimpimage.h"
#include "gimpgrouplayer.h"
#include "gimpgrouplayerundo.h"
static void gimp_group_layer_undo_constructed (GObject *object);
static void gimp_group_layer_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
G_DEFINE_TYPE (GimpGroupLayerUndo, gimp_group_layer_undo, GIMP_TYPE_ITEM_UNDO)
#define parent_class gimp_group_layer_undo_parent_class
static void
gimp_group_layer_undo_class_init (GimpGroupLayerUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
object_class->constructed = gimp_group_layer_undo_constructed;
undo_class->pop = gimp_group_layer_undo_pop;
}
static void
gimp_group_layer_undo_init (GimpGroupLayerUndo *undo)
{
}
static void
gimp_group_layer_undo_constructed (GObject *object)
{
GimpGroupLayerUndo *group_layer_undo = GIMP_GROUP_LAYER_UNDO (object);
GimpGroupLayer *group;
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (GIMP_IS_GROUP_LAYER (GIMP_ITEM_UNDO (object)->item));
group = GIMP_GROUP_LAYER (GIMP_ITEM_UNDO (object)->item);
switch (GIMP_UNDO (object)->undo_type)
{
case GIMP_UNDO_GROUP_LAYER_SUSPEND:
case GIMP_UNDO_GROUP_LAYER_RESUME:
break;
case GIMP_UNDO_GROUP_LAYER_CONVERT:
group_layer_undo->prev_type = gimp_drawable_get_base_type (GIMP_DRAWABLE (group));
group_layer_undo->prev_precision = gimp_drawable_get_precision (GIMP_DRAWABLE (group));
break;
default:
g_assert_not_reached ();
}
}
static void
gimp_group_layer_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpGroupLayerUndo *group_layer_undo = GIMP_GROUP_LAYER_UNDO (undo);
GimpGroupLayer *group;
group = GIMP_GROUP_LAYER (GIMP_ITEM_UNDO (undo)->item);
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
switch (undo->undo_type)
{
case GIMP_UNDO_GROUP_LAYER_SUSPEND:
case GIMP_UNDO_GROUP_LAYER_RESUME:
if ((undo_mode == GIMP_UNDO_MODE_UNDO &&
undo->undo_type == GIMP_UNDO_GROUP_LAYER_SUSPEND) ||
(undo_mode == GIMP_UNDO_MODE_REDO &&
undo->undo_type == GIMP_UNDO_GROUP_LAYER_RESUME))
{
/* resume group layer auto-resizing */
gimp_group_layer_resume_resize (group, FALSE);
}
else
{
/* suspend group layer auto-resizing */
gimp_group_layer_suspend_resize (group, FALSE);
}
break;
case GIMP_UNDO_GROUP_LAYER_CONVERT:
{
GimpImageBaseType type;
GimpPrecision precision;
type = gimp_drawable_get_base_type (GIMP_DRAWABLE (group));
precision = gimp_drawable_get_precision (GIMP_DRAWABLE (group));
gimp_drawable_convert_type (GIMP_DRAWABLE (group),
gimp_item_get_image (GIMP_ITEM (group)),
group_layer_undo->prev_type,
group_layer_undo->prev_precision,
0, 0,
FALSE);
group_layer_undo->prev_type = type;
group_layer_undo->prev_precision = precision;
}
break;
default:
g_assert_not_reached ();
}
}