/* 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>

 */

/* FIXME: need to make this OpenRaster inspired layer integrate better

 * with the newer caching system

 */

#include "config.h"

#include <glib/gi18n-lib.h>

#ifdef GEGL_CHANT_PROPERTIES

gegl_chant_double(x, _("X"), -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,

                  _("Horizontal position"))

gegl_chant_double(y, _("Y"), -G_MAXDOUBLE, G_MAXDOUBLE, 0.0,

                  _("Vertical position"))

gegl_chant_double(width, _("Width"), 0, G_MAXDOUBLE, 0.0,

                  _("Horizontal extent"))

gegl_chant_double(height, _("Height"), 0, G_MAXDOUBLE, 0.0,

                  _("Vertical extent"))

gegl_chant_color(color, _("Color"), "white",

                  _("Color to render"))

#else

#include <gegl-plugin.h>

struct _GeglChant

{

  GeglOperationMeta parent_instance;

  gpointer          properties;

  GeglNode *self;

  GeglNode *output;

  GeglNode *color;

  GeglNode *crop;

};

typedef struct

{

  GeglOperationMetaClass parent_class;

} GeglChantClass;

#define GEGL_CHANT_C_FILE "rectangle.c"

#include "gegl-chant.h"

GEGL_DEFINE_DYNAMIC_OPERATION(GEGL_TYPE_OPERATION_META)

static void attach (GeglOperation *operation)

{

  GeglChant  *self = GEGL_CHANT (operation);

  GeglChantO *o    = GEGL_CHANT_PROPERTIES (operation);

  GeglNode *gegl;

  self->self = GEGL_OPERATION (self)->node;

  gegl = self->self;

  self->output = gegl_node_get_output_proxy (gegl, "output");

  self->color = gegl_node_new_child (gegl, "operation", "gegl:color",

                                           "value", o->color,

                                           NULL);

  self->crop = gegl_node_new_child (gegl, "operation", "gegl:crop", NULL);

  gegl_node_link_many (self->color, self->crop, self->output, NULL);

}

static void

prepare (GeglOperation *operation)

{

  GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);

  GeglChant *self = GEGL_CHANT (operation);

    {

      GeglColor *color;

      gegl_node_get (self->color, "value", &color, NULL);

      if (o->color != color)

        gegl_node_set (self->color,

                       "value", o->color,

                       NULL);

    }

    {

      gdouble x,y,width,height;

      gegl_node_get (self->crop,

                     "x", &x,

                     "y", &y,

                     "width", &width,

                     "height", &height,

                     NULL);

      if (x!=o->x ||

          y!=o->y ||

          width!=o->width ||

          height!=o->height)

        gegl_node_set (self->crop,

                       "x",  o->x,

                       "y",  o->y,

                       "width",  o->width,

                       "height",  o->height,

                       NULL);

    }

}

static void

gegl_chant_class_init (GeglChantClass *klass)

{

  GeglOperationClass *operation_class;

  operation_class = GEGL_OPERATION_CLASS (klass);

  operation_class->attach = attach;

  operation_class->prepare = prepare;

  gegl_operation_class_set_keys (operation_class,

  "name"       , "gegl:rectangle",

  "categories" , "input",

  "description",

        _("A rectangular source of a fixed size with a solid color"),

        NULL);

}

#endif