gimp/app/core/gimpsamplepointundo.c

122 lines
4.0 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 <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-sample-points.h"
#include "gimpsamplepoint.h"
#include "gimpsamplepointundo.h"
static void gimp_sample_point_undo_constructed (GObject *object);
static void gimp_sample_point_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
G_DEFINE_TYPE (GimpSamplePointUndo, gimp_sample_point_undo,
GIMP_TYPE_AUX_ITEM_UNDO)
#define parent_class gimp_sample_point_undo_parent_class
static void
gimp_sample_point_undo_class_init (GimpSamplePointUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
object_class->constructed = gimp_sample_point_undo_constructed;
undo_class->pop = gimp_sample_point_undo_pop;
}
static void
gimp_sample_point_undo_init (GimpSamplePointUndo *undo)
{
}
static void
gimp_sample_point_undo_constructed (GObject *object)
{
GimpSamplePointUndo *sample_point_undo = GIMP_SAMPLE_POINT_UNDO (object);
GimpSamplePoint *sample_point;
G_OBJECT_CLASS (parent_class)->constructed (object);
sample_point = GIMP_SAMPLE_POINT (GIMP_AUX_ITEM_UNDO (object)->aux_item);
gimp_assert (GIMP_IS_SAMPLE_POINT (sample_point));
gimp_sample_point_get_position (sample_point,
&sample_point_undo->x,
&sample_point_undo->y);
sample_point_undo->pick_mode = gimp_sample_point_get_pick_mode (sample_point);
}
static void
gimp_sample_point_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpSamplePointUndo *sample_point_undo = GIMP_SAMPLE_POINT_UNDO (undo);
GimpSamplePoint *sample_point;
gint x;
gint y;
GimpColorPickMode pick_mode;
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
sample_point = GIMP_SAMPLE_POINT (GIMP_AUX_ITEM_UNDO (undo)->aux_item);
gimp_sample_point_get_position (sample_point, &x, &y);
pick_mode = gimp_sample_point_get_pick_mode (sample_point);
if (x == GIMP_SAMPLE_POINT_POSITION_UNDEFINED)
{
gimp_image_add_sample_point (undo->image,
sample_point,
sample_point_undo->x,
sample_point_undo->y);
}
else if (sample_point_undo->x == GIMP_SAMPLE_POINT_POSITION_UNDEFINED)
{
gimp_image_remove_sample_point (undo->image, sample_point, FALSE);
}
else
{
gimp_sample_point_set_position (sample_point,
sample_point_undo->x,
sample_point_undo->y);
gimp_sample_point_set_pick_mode (sample_point,
sample_point_undo->pick_mode);
gimp_image_sample_point_moved (undo->image, sample_point);
}
sample_point_undo->x = x;
sample_point_undo->y = y;
sample_point_undo->pick_mode = pick_mode;
}