gimp/app/tools/gimptransformtoolundo.c

224 lines
7.9 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "tools-types.h"
#include "base/tile-manager.h"
#include "gimptoolcontrol.h"
#include "gimptransformtool.h"
#include "gimptransformtoolundo.h"
enum
{
PROP_0,
PROP_TRANSFORM_TOOL
};
static GObject * gimp_transform_tool_undo_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_transform_tool_undo_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_transform_tool_undo_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_transform_tool_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum);
static void gimp_transform_tool_undo_free (GimpUndo *undo,
GimpUndoMode undo_mode);
G_DEFINE_TYPE (GimpTransformToolUndo, gimp_transform_tool_undo, GIMP_TYPE_UNDO)
#define parent_class gimp_transform_tool_undo_parent_class
static void
gimp_transform_tool_undo_class_init (GimpTransformToolUndoClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
object_class->constructor = gimp_transform_tool_undo_constructor;
object_class->set_property = gimp_transform_tool_undo_set_property;
object_class->get_property = gimp_transform_tool_undo_get_property;
undo_class->pop = gimp_transform_tool_undo_pop;
undo_class->free = gimp_transform_tool_undo_free;
g_object_class_install_property (object_class, PROP_TRANSFORM_TOOL,
g_param_spec_object ("transform-tool",
NULL, NULL,
GIMP_TYPE_TRANSFORM_TOOL,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
gimp_transform_tool_undo_init (GimpTransformToolUndo *undo)
{
}
static GObject *
gimp_transform_tool_undo_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpTransformToolUndo *transform_tool_undo;
GimpTransformTool *transform_tool;
gint i;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
transform_tool_undo = GIMP_TRANSFORM_TOOL_UNDO (object);
g_assert (GIMP_IS_TRANSFORM_TOOL (transform_tool_undo->transform_tool));
transform_tool = GIMP_TRANSFORM_TOOL (transform_tool_undo->transform_tool);
for (i = 0; i < TRANS_INFO_SIZE; i++)
transform_tool_undo->trans_info[i] = transform_tool->old_trans_info[i];
#if 0
if (transform_tool->original)
transform_tool_undo->original = tile_manager_ref (transform_tool->original);
#endif
g_object_add_weak_pointer (G_OBJECT (transform_tool_undo->transform_tool),
(gpointer) &transform_tool_undo->transform_tool);
return object;
}
static void
gimp_transform_tool_undo_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpTransformToolUndo *transform_tool_undo = GIMP_TRANSFORM_TOOL_UNDO (object);
switch (property_id)
{
case PROP_TRANSFORM_TOOL:
transform_tool_undo->transform_tool = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_transform_tool_undo_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpTransformToolUndo *transform_tool_undo = GIMP_TRANSFORM_TOOL_UNDO (object);
switch (property_id)
{
case PROP_TRANSFORM_TOOL:
g_value_set_object (value, transform_tool_undo->transform_tool);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_transform_tool_undo_pop (GimpUndo *undo,
GimpUndoMode undo_mode,
GimpUndoAccumulator *accum)
{
GimpTransformToolUndo *transform_tool_undo = GIMP_TRANSFORM_TOOL_UNDO (undo);
GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
if (transform_tool_undo->transform_tool)
{
GimpTransformTool *transform_tool;
TileManager *temp;
gdouble d;
gint i;
transform_tool = transform_tool_undo->transform_tool;
/* swap the transformation information arrays */
for (i = 0; i < TRANS_INFO_SIZE; i++)
{
d = transform_tool_undo->trans_info[i];
transform_tool_undo->trans_info[i] = transform_tool->trans_info[i];
transform_tool->trans_info[i] = d;
}
/* swap the original buffer--the source buffer for repeated transforms
*/
temp = transform_tool_undo->original;
transform_tool_undo->original = transform_tool->original;
transform_tool->original = temp;
/* If we're re-implementing the first transform, reactivate tool */
if (undo_mode == GIMP_UNDO_MODE_REDO && transform_tool->original)
{
gimp_tool_control_activate (GIMP_TOOL (transform_tool)->control);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (transform_tool));
}
}
}
static void
gimp_transform_tool_undo_free (GimpUndo *undo,
GimpUndoMode undo_mode)
{
GimpTransformToolUndo *transform_tool_undo = GIMP_TRANSFORM_TOOL_UNDO (undo);
if (transform_tool_undo->transform_tool)
{
g_object_remove_weak_pointer (G_OBJECT (transform_tool_undo->transform_tool),
(gpointer) &transform_tool_undo->transform_tool);
transform_tool_undo->transform_tool = NULL;
}
if (transform_tool_undo->original)
{
tile_manager_unref (transform_tool_undo->original);
transform_tool_undo->original = NULL;
}
GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
}