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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 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "paint-types.h"
#include "gimpink.h"
#include "gimpink-blob.h"
#include "gimpinkundo.h"
static void gimp_ink_undo_constructed (GObject *object);
static void gimp_ink_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
static void gimp_ink_undo_free (GimpUndo *undo,
GimpUndoMode undo_mode);
G_DEFINE_TYPE (GimpInkUndo, gimp_ink_undo, GIMP_TYPE_PAINT_CORE_UNDO)
#define parent_class gimp_ink_undo_parent_class
static void
gimp_ink_undo_class_init (GimpInkUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
object_class->constructed = gimp_ink_undo_constructed;
undo_class->pop = gimp_ink_undo_pop;
undo_class->free = gimp_ink_undo_free;
}
static void
gimp_ink_undo_init (GimpInkUndo *undo)
{
undo->last_blobs = NULL;
}
static void
gimp_ink_undo_constructed (GObject *object)
{
GimpInkUndo *ink_undo = GIMP_INK_UNDO (object);
GimpInk *ink;
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_assert (GIMP_IS_INK (GIMP_PAINT_CORE_UNDO (ink_undo)->paint_core));
ink = GIMP_INK (GIMP_PAINT_CORE_UNDO (ink_undo)->paint_core);
if (ink->start_blobs)
{
gint i;
GimpBlob *blob;
for (i = 0; i < g_list_length (ink->start_blobs); i++)
{
blob = g_list_nth_data (ink->start_blobs, i);
ink_undo->last_blobs = g_list_prepend (ink_undo->last_blobs,
gimp_blob_duplicate (blob));
}
ink_undo->last_blobs = g_list_reverse (ink_undo->last_blobs);
}
}
static void
gimp_ink_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpInkUndo *ink_undo = GIMP_INK_UNDO (undo);
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
if (GIMP_PAINT_CORE_UNDO (ink_undo)->paint_core)
{
GimpInk *ink = GIMP_INK (GIMP_PAINT_CORE_UNDO (ink_undo)->paint_core);
GList *tmp_blobs;
tmp_blobs = ink->last_blobs;
ink->last_blobs = ink_undo->last_blobs;
ink_undo->last_blobs = tmp_blobs;
}
}
static void
gimp_ink_undo_free (GimpUndo *undo,
GimpUndoMode undo_mode)
{
GimpInkUndo *ink_undo = GIMP_INK_UNDO (undo);
if (ink_undo->last_blobs)
{
g_list_free_full (ink_undo->last_blobs, g_free);
ink_undo->last_blobs = NULL;
}
GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
}
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