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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 <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "core-types.h"
#include "gimpimage.h"
#include "gimpimage-guides.h"
#include "gimpguide.h"
#include "gimpguideundo.h"
static void gimp_guide_undo_constructed (GObject *object);
static void gimp_guide_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
G_DEFINE_TYPE (GimpGuideUndo, gimp_guide_undo,
GIMP_TYPE_AUX_ITEM_UNDO)
#define parent_class gimp_guide_undo_parent_class
static void
gimp_guide_undo_class_init (GimpGuideUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
object_class->constructed = gimp_guide_undo_constructed;
undo_class->pop = gimp_guide_undo_pop;
}
static void
gimp_guide_undo_init (GimpGuideUndo *undo)
{
}
static void
gimp_guide_undo_constructed (GObject *object)
{
GimpGuideUndo *guide_undo = GIMP_GUIDE_UNDO (object);
GimpGuide *guide;
G_OBJECT_CLASS (parent_class)->constructed (object);
guide = GIMP_GUIDE (GIMP_AUX_ITEM_UNDO (object)->aux_item);
gimp_assert (GIMP_IS_GUIDE (guide));
guide_undo->orientation = gimp_guide_get_orientation (guide);
guide_undo->position = gimp_guide_get_position (guide);
}
static void
gimp_guide_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpGuideUndo *guide_undo = GIMP_GUIDE_UNDO (undo);
GimpGuide *guide;
GimpOrientationType orientation;
gint position;
gboolean moved = FALSE;
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
guide = GIMP_GUIDE (GIMP_AUX_ITEM_UNDO (undo)->aux_item);
orientation = gimp_guide_get_orientation (guide);
position = gimp_guide_get_position (guide);
if (position == GIMP_GUIDE_POSITION_UNDEFINED)
{
gimp_image_add_guide (undo->image, guide, guide_undo->position);
}
else if (guide_undo->position == GIMP_GUIDE_POSITION_UNDEFINED)
{
gimp_image_remove_guide (undo->image, guide, FALSE);
}
else
{
gimp_guide_set_position (guide, guide_undo->position);
moved = TRUE;
}
gimp_guide_set_orientation (guide, guide_undo->orientation);
if (moved || guide_undo->orientation != orientation)
gimp_image_guide_moved (undo->image, guide);
guide_undo->position = position;
guide_undo->orientation = orientation;
}
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