gimp/app/core/gimpsamplepointundo.c

191 lines
6.3 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 <gegl.h>
#include "core-types.h"
#include "gimpimage.h"
#include "gimpimage-sample-points.h"
#include "gimpsamplepoint.h"
#include "gimpsamplepointundo.h"
enum
{
PROP_0,
PROP_SAMPLE_POINT
};
static void gimp_sample_point_undo_constructed (GObject *object);
static void gimp_sample_point_undo_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_sample_point_undo_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_sample_point_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
static void gimp_sample_point_undo_free (GimpUndo *undo,
GimpUndoMode undo_mode);
G_DEFINE_TYPE (GimpSamplePointUndo, gimp_sample_point_undo, GIMP_TYPE_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;
object_class->set_property = gimp_sample_point_undo_set_property;
object_class->get_property = gimp_sample_point_undo_get_property;
undo_class->pop = gimp_sample_point_undo_pop;
undo_class->free = gimp_sample_point_undo_free;
g_object_class_install_property (object_class, PROP_SAMPLE_POINT,
g_param_spec_boxed ("sample-point", NULL, NULL,
GIMP_TYPE_SAMPLE_POINT,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
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);
if (G_OBJECT_CLASS (parent_class)->constructed)
G_OBJECT_CLASS (parent_class)->constructed (object);
g_assert (sample_point_undo->sample_point != NULL);
sample_point_undo->x = sample_point_undo->sample_point->x;
sample_point_undo->y = sample_point_undo->sample_point->y;
}
static void
gimp_sample_point_undo_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpSamplePointUndo *sample_point_undo = GIMP_SAMPLE_POINT_UNDO (object);
switch (property_id)
{
case PROP_SAMPLE_POINT:
sample_point_undo->sample_point = g_value_dup_boxed (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_sample_point_undo_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpSamplePointUndo *sample_point_undo = GIMP_SAMPLE_POINT_UNDO (object);
switch (property_id)
{
case PROP_SAMPLE_POINT:
g_value_set_boxed (value, sample_point_undo->sample_point);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_sample_point_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpSamplePointUndo *sample_point_undo = GIMP_SAMPLE_POINT_UNDO (undo);
gint x;
gint y;
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
x = sample_point_undo->sample_point->x;
y = sample_point_undo->sample_point->y;
if (x == -1)
{
gimp_image_add_sample_point (undo->image,
sample_point_undo->sample_point,
sample_point_undo->x,
sample_point_undo->y);
}
else if (sample_point_undo->x == -1)
{
gimp_image_remove_sample_point (undo->image,
sample_point_undo->sample_point, FALSE);
}
else
{
sample_point_undo->sample_point->x = sample_point_undo->x;
sample_point_undo->sample_point->y = sample_point_undo->y;
gimp_image_sample_point_moved (undo->image,
sample_point_undo->sample_point);
}
sample_point_undo->x = x;
sample_point_undo->y = y;
}
static void
gimp_sample_point_undo_free (GimpUndo *undo,
GimpUndoMode undo_mode)
{
GimpSamplePointUndo *sample_point_undo = GIMP_SAMPLE_POINT_UNDO (undo);
if (sample_point_undo->sample_point)
{
gimp_sample_point_unref (sample_point_undo->sample_point);
sample_point_undo->sample_point = NULL;
}
GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
}