gimp/app/core/gimpdrawable-equalize.c

59 lines
1.8 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 <gdk-pixbuf/gdk-pixbuf.h>
#include <gegl.h>
#include "core-types.h"
#include "gimpdrawable.h"
#include "gimpdrawable-equalize.h"
#include "gimpdrawable-histogram.h"
#include "gimpdrawable-operation.h"
#include "gimphistogram.h"
#include "gimp-intl.h"
void
gimp_drawable_equalize (GimpDrawable *drawable,
gboolean mask_only)
{
GimpHistogram *hist;
GeglNode *equalize;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (gimp_item_is_attached (GIMP_ITEM (drawable)));
hist = gimp_histogram_new (TRUE);
gimp_drawable_calculate_histogram (drawable, hist);
equalize = gegl_node_new_child (NULL,
"operation", "gimp:equalize",
"histogram", hist,
NULL);
gimp_drawable_apply_operation (drawable, NULL,
C_("undo-type", "Equalize"),
equalize);
g_object_unref (equalize);
g_object_unref (hist);
}