PIKApp/app/core/pikasamplepointundo.c

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2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* 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 "pikaimage.h"
#include "pikaimage-sample-points.h"
#include "pikasamplepoint.h"
#include "pikasamplepointundo.h"
static void pika_sample_point_undo_constructed (GObject *object);
static void pika_sample_point_undo_pop (PikaUndo *undo,
PikaUndoMode undo_mode,
PikaUndoAccumulator *accum);
G_DEFINE_TYPE (PikaSamplePointUndo, pika_sample_point_undo,
PIKA_TYPE_AUX_ITEM_UNDO)
#define parent_class pika_sample_point_undo_parent_class
static void
pika_sample_point_undo_class_init (PikaSamplePointUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaUndoClass *undo_class = PIKA_UNDO_CLASS (klass);
object_class->constructed = pika_sample_point_undo_constructed;
undo_class->pop = pika_sample_point_undo_pop;
}
static void
pika_sample_point_undo_init (PikaSamplePointUndo *undo)
{
}
static void
pika_sample_point_undo_constructed (GObject *object)
{
PikaSamplePointUndo *sample_point_undo = PIKA_SAMPLE_POINT_UNDO (object);
PikaSamplePoint *sample_point;
G_OBJECT_CLASS (parent_class)->constructed (object);
sample_point = PIKA_SAMPLE_POINT (PIKA_AUX_ITEM_UNDO (object)->aux_item);
pika_assert (PIKA_IS_SAMPLE_POINT (sample_point));
pika_sample_point_get_position (sample_point,
&sample_point_undo->x,
&sample_point_undo->y);
sample_point_undo->pick_mode = pika_sample_point_get_pick_mode (sample_point);
}
static void
pika_sample_point_undo_pop (PikaUndo *undo,
PikaUndoMode undo_mode,
PikaUndoAccumulator *accum)
{
PikaSamplePointUndo *sample_point_undo = PIKA_SAMPLE_POINT_UNDO (undo);
PikaSamplePoint *sample_point;
gint x;
gint y;
PikaColorPickMode pick_mode;
PIKA_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
sample_point = PIKA_SAMPLE_POINT (PIKA_AUX_ITEM_UNDO (undo)->aux_item);
pika_sample_point_get_position (sample_point, &x, &y);
pick_mode = pika_sample_point_get_pick_mode (sample_point);
if (x == PIKA_SAMPLE_POINT_POSITION_UNDEFINED)
{
pika_image_add_sample_point (undo->image,
sample_point,
sample_point_undo->x,
sample_point_undo->y);
}
else if (sample_point_undo->x == PIKA_SAMPLE_POINT_POSITION_UNDEFINED)
{
pika_image_remove_sample_point (undo->image, sample_point, FALSE);
}
else
{
pika_sample_point_set_position (sample_point,
sample_point_undo->x,
sample_point_undo->y);
pika_sample_point_set_pick_mode (sample_point,
sample_point_undo->pick_mode);
pika_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;
}