115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
|
/* 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 <cairo.h>
|
||
|
|
|
||
|
|
#include "core-types.h"
|
||
|
|
|
||
|
|
#include "gegl/pika-gegl-utils.h"
|
||
|
|
|
||
|
|
#include "pikadrawable.h"
|
||
|
|
#include "pikadrawable-private.h"
|
||
|
|
#include "pikadrawable-shadow.h"
|
||
|
|
|
||
|
|
|
||
|
|
GeglBuffer *
|
||
|
|
pika_drawable_get_shadow_buffer (PikaDrawable *drawable)
|
||
|
|
{
|
||
|
|
PikaItem *item;
|
||
|
|
gint width;
|
||
|
|
gint height;
|
||
|
|
const Babl *format;
|
||
|
|
|
||
|
|
g_return_val_if_fail (PIKA_IS_DRAWABLE (drawable), NULL);
|
||
|
|
|
||
|
|
item = PIKA_ITEM (drawable);
|
||
|
|
|
||
|
|
width = pika_item_get_width (item);
|
||
|
|
height = pika_item_get_height (item);
|
||
|
|
format = pika_drawable_get_format (drawable);
|
||
|
|
|
||
|
|
if (drawable->private->shadow)
|
||
|
|
{
|
||
|
|
if ((width != gegl_buffer_get_width (drawable->private->shadow)) ||
|
||
|
|
(height != gegl_buffer_get_height (drawable->private->shadow)) ||
|
||
|
|
(format != gegl_buffer_get_format (drawable->private->shadow)))
|
||
|
|
{
|
||
|
|
pika_drawable_free_shadow_buffer (drawable);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return drawable->private->shadow;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
drawable->private->shadow = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
|
||
|
|
width, height),
|
||
|
|
format);
|
||
|
|
|
||
|
|
return drawable->private->shadow;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_drawable_free_shadow_buffer (PikaDrawable *drawable)
|
||
|
|
{
|
||
|
|
g_return_if_fail (PIKA_IS_DRAWABLE (drawable));
|
||
|
|
|
||
|
|
g_clear_object (&drawable->private->shadow);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
pika_drawable_merge_shadow_buffer (PikaDrawable *drawable,
|
||
|
|
gboolean push_undo,
|
||
|
|
const gchar *undo_desc)
|
||
|
|
{
|
||
|
|
gint x, y;
|
||
|
|
gint width, height;
|
||
|
|
|
||
|
|
g_return_if_fail (PIKA_IS_DRAWABLE (drawable));
|
||
|
|
g_return_if_fail (pika_item_is_attached (PIKA_ITEM (drawable)));
|
||
|
|
g_return_if_fail (GEGL_IS_BUFFER (drawable->private->shadow));
|
||
|
|
|
||
|
|
/* A useful optimization here is to limit the update to the
|
||
|
|
* extents of the selection mask, as it cannot extend beyond
|
||
|
|
* them.
|
||
|
|
*/
|
||
|
|
if (pika_item_mask_intersect (PIKA_ITEM (drawable), &x, &y, &width, &height))
|
||
|
|
{
|
||
|
|
GeglBuffer *buffer = g_object_ref (drawable->private->shadow);
|
||
|
|
|
||
|
|
pika_drawable_apply_buffer (drawable, buffer,
|
||
|
|
GEGL_RECTANGLE (x, y, width, height),
|
||
|
|
push_undo, undo_desc,
|
||
|
|
PIKA_OPACITY_OPAQUE,
|
||
|
|
PIKA_LAYER_MODE_REPLACE,
|
||
|
|
PIKA_LAYER_COLOR_SPACE_AUTO,
|
||
|
|
PIKA_LAYER_COLOR_SPACE_AUTO,
|
||
|
|
PIKA_LAYER_COMPOSITE_AUTO,
|
||
|
|
NULL, x, y);
|
||
|
|
|
||
|
|
g_object_unref (buffer);
|
||
|
|
}
|
||
|
|
}
|
