mirror of https://github.com/GNOME/gimp.git
105 lines
3.1 KiB
C
105 lines
3.1 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 <glib-object.h>
|
||
|
|
|
||
|
|
#include "core-types.h"
|
||
|
|
|
||
|
|
#include "base/pixel-region.h"
|
||
|
|
#include "base/tile-manager.h"
|
||
|
|
|
||
|
|
#include "gimpdrawable.h"
|
||
|
|
#include "gimpdrawable-shadow.h"
|
||
|
|
#include "gimpimage.h"
|
||
|
|
|
||
|
|
|
||
|
|
TileManager *
|
||
|
|
gimp_drawable_get_shadow_tiles (GimpDrawable *drawable)
|
||
|
|
{
|
||
|
|
GimpItem *item;
|
||
|
|
|
||
|
|
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
|
||
|
|
|
||
|
|
item = GIMP_ITEM (drawable);
|
||
|
|
|
||
|
|
g_return_val_if_fail (gimp_item_is_attached (item), NULL);
|
||
|
|
|
||
|
|
if (drawable->shadow)
|
||
|
|
{
|
||
|
|
if ((gimp_item_width (item) != tile_manager_width (drawable->shadow)) ||
|
||
|
|
(gimp_item_height (item) != tile_manager_height (drawable->shadow)) ||
|
||
|
|
(drawable->bytes != tile_manager_bpp (drawable->shadow)))
|
||
|
|
{
|
||
|
|
gimp_drawable_free_shadow_tiles (drawable);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return drawable->shadow;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
drawable->shadow = tile_manager_new (gimp_item_width (item),
|
||
|
|
gimp_item_height (item),
|
||
|
|
drawable->bytes);
|
||
|
|
|
||
|
|
return drawable->shadow;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
gimp_drawable_free_shadow_tiles (GimpDrawable *drawable)
|
||
|
|
{
|
||
|
|
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
|
||
|
|
|
||
|
|
if (drawable->shadow)
|
||
|
|
{
|
||
|
|
tile_manager_unref (drawable->shadow);
|
||
|
|
drawable->shadow = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
gimp_drawable_merge_shadow_tiles (GimpDrawable *drawable,
|
||
|
|
gboolean push_undo,
|
||
|
|
const gchar *undo_desc)
|
||
|
|
{
|
||
|
|
gint x, y;
|
||
|
|
gint width, height;
|
||
|
|
|
||
|
|
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
|
||
|
|
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
|
||
|
|
g_return_if_fail (drawable->shadow != NULL);
|
||
|
|
|
||
|
|
/* A useful optimization here is to limit the update to the
|
||
|
|
* extents of the selection mask, as it cannot extend beyond
|
||
|
|
* them.
|
||
|
|
*/
|
||
|
|
if (gimp_drawable_mask_intersect (drawable, &x, &y, &width, &height))
|
||
|
|
{
|
||
|
|
PixelRegion shadowPR;
|
||
|
|
|
||
|
|
pixel_region_init (&shadowPR, drawable->shadow,
|
||
|
|
x, y, width, height, FALSE);
|
||
|
|
gimp_drawable_apply_region (drawable, &shadowPR,
|
||
|
|
push_undo, undo_desc,
|
||
|
|
GIMP_OPACITY_OPAQUE, GIMP_REPLACE_MODE,
|
||
|
|
NULL, x, y);
|
||
|
|
}
|
||
|
|
}
|