/* gEDA - GPL Electronic Design Automation
 * libgeda - gEDA's library
 * Copyright (C) 1998-2000 Ales V. Hvezda
 *
 * 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 USA
 */
#include <config.h>

#include <stdio.h>

#include <gtk/gtk.h>
#include <libguile.h>

#ifdef HAS_LIBGD
#include <gd.h>
#endif

#include "defines.h"
#include "struct.h"
#include "globals.h"
#include "o_types.h"
#include "funcs.h"
#include "colors.h"

#include "../include/prototype.h"

#ifdef HAVE_LIBDMALLOC
#include <dmalloc.h>
#endif

int image_black;
int image_white;
#if 0
int image_red;
int image_green;
int image_blue;
int image_yellow;
int image_cyan;
int image_grey;
#endif

#ifdef HAS_LIBGD

extern COLOR colors[MAX_COLORS];

/*! \brief
 *
 */
gdImagePtr current_im_ptr;

/*! \brief
 *  \par Function Description
 *
 */
void o_image_init(void)
{

}

/*! \brief
 *  \par Function Description
 *
 *  \param [in] x
 *  \param [in] y
 *  \param [in] color_mode
 */
/* background color ? */
void o_image_create(int x, int y, int color_mode)
{
  gdImagePtr im_ptr;

  im_ptr = gdImageCreate(x, y);

  if (color_mode == TRUE) {
    /* You can change the background color which is outputed */
    if (colors[BACKGROUND_COLOR].image_red != -1 && 
        colors[BACKGROUND_COLOR].image_green != -1 &&
        colors[BACKGROUND_COLOR].image_blue != -1) {
      image_black = gdImageColorAllocate(im_ptr, 
                                         colors[BACKGROUND_COLOR].image_red,
                                         colors[BACKGROUND_COLOR].image_green,
                                         colors[BACKGROUND_COLOR].image_blue);
    } else {
      image_black = gdImageColorAllocate(im_ptr, 0, 0, 0);
    }
    image_white = gdImageColorAllocate(im_ptr, 255, 255, 255);
  } else {
    /* set the background to white */
    image_white = gdImageColorAllocate(im_ptr, 255, 255, 255);
    image_black = gdImageColorAllocate(im_ptr, 0, 0, 0);
  }

  current_im_ptr = im_ptr;

  s_color_gdcolor_init();
}

/*! \brief
 *  \par Function Description
 *
 */
void o_image_close(void)
{
  gdImageDestroy(current_im_ptr);
}

/*! \brief
 *  \par Function Description
 *
 */
int o_image_write(const char *filename)
{
  FILE *out;

  if (filename == NULL) {
    return(-1);
  }

  gdImageInterlace(current_im_ptr, 1);

  out = fopen(filename, "wb");

  if (out == NULL) {
    s_log_message("Could not open [%s] for image writting\n", filename);
    return(-1);
  }

  gdImagePng(current_im_ptr, out);

  fclose(out);
  return(0);
}
#endif

/*! \brief
 *  \par Function Description
 *
 */
/* this can stay in even if libgd doesn't exist */
int o_image_geda2gd_color(int color) 
{
  int value;
  value = s_color_image_int(color);
  return(value);
}