/* This file is an image processing operation for GEGL
*
* GEGL is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* GEGL 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2006 Øyvind Kolås <pippin@gimp.org>
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
gegl_chant_string (ref, _("Reference"), "ID",
_("The reference ID used as input (for use in XML)."))
#else
#define GEGL_CHANT_TYPE_FILTER
#define GEGL_CHANT_C_FILE "clone.c"
#include "gegl-chant.h"
#include "graph/gegl-node.h"
#include <math.h>
#include <string.h>
#include "buffer/gegl-buffer-cl-cache.h"
static GeglNode *
detect (GeglOperation *operation,
gint x,
gint y)
{
GeglNode *node = operation->node;
if (x >= node->have_rect.x &&
y >= node->have_rect.y &&
x < node->have_rect.width &&
y < node->have_rect.height)
{
return node;
}
return NULL;
}
static GeglRectangle
get_bounding_box (GeglOperation *operation)
{
GeglRectangle result = { 0, 0, 0, 0 };
GeglRectangle *in_rect;
in_rect = gegl_operation_source_get_bounding_box (operation, "input");
if (in_rect)
{
result = *in_rect;
}
return result;
}
static gboolean
process (GeglOperation *operation,
GeglOperationContext *context,
const gchar *output_prop,
const GeglRectangle *result,
gint level)
{
GeglBuffer *input;
if (strcmp (output_prop, "output"))
{
g_warning ("requested processing of %s pad on a clone", output_prop);
return FALSE;
}
input = gegl_operation_context_get_source (context, "input");
if (!input)
{
g_warning ("clone received NULL input");
return FALSE;
}
gegl_operation_context_take_object (context, "output", G_OBJECT (input));
return TRUE;
}
static void
gegl_chant_class_init (GeglChantClass *klass)
{
GeglOperationClass *operation_class;
operation_class = GEGL_OPERATION_CLASS (klass);
operation_class->process = process;
operation_class->get_bounding_box = get_bounding_box;
operation_class->detect = detect;
operation_class->no_cache = TRUE;
gegl_operation_class_set_keys (operation_class,
"name", "gegl:clone",
"description", _("Clone a buffer"),
"categories", "core",
NULL);
}
#endif