/* GDK - The GIMP Drawing Kit
 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
#include <time.h>
#include "gdk.h"
#include "gdkprivate.h"
#include "gdkx.h"

GdkColormap*
gdk_colormap_new (GdkVisual *visual,
		  gint       private_cmap)
{
  return FULL;
}


GdkColormap*
gdk_colormap_ref (GdkColormap *cmap)
{
  return NULL;
}

void
gdk_colormap_unref (GdkColormap *cmap)
{
}

GdkVisual *
gdk_colormap_get_visual (GdkColormap *colormap)
{
  return system_visual;
}
     
#define MIN_SYNC_TIME 2

void
gdk_colormap_sync (GdkColormap *colormap,
		   gboolean     force)
{
}
		   

GdkColormap*
gdk_colormap_get_system (void)
{
  return NULL;
}

gint
gdk_colormap_get_system_size (void)
{
  return 8;
}

void
gdk_colormap_change (GdkColormap *colormap,
		     gint         ncolors)
{
}

void
gdk_colors_store (GdkColormap   *colormap,
		  GdkColor      *colors,
		  gint           ncolors)
{
}

gboolean
gdk_colors_alloc (GdkColormap   *colormap,
		  gint           contiguous,
		  gulong        *planes,
		  gint           nplanes,
		  gulong        *pixels,
		  gint           npixels)
{
  return 0;
}

/* This is almost identical to gdk_colormap_free_colors.
 * Keep them in sync!
 */
void
gdk_colors_free (GdkColormap *colormap,
		 gulong      *in_pixels,
		 gint         in_npixels,
		 gulong       planes)
{
}

/*
 *--------------------------------------------------------------
 * gdk_color_copy
 *
 *   Copy a color structure into new storage.
 *
 * Arguments:
 *   "color" is the color struct to copy.
 *
 * Results:
 *   A new color structure.  Free it with gdk_color_free.
 *
 *--------------------------------------------------------------
 */

static GMemChunk *color_chunk;

GdkColor*
gdk_color_copy (GdkColor *color)
{
  GdkColor *new_color;
  
  g_return_val_if_fail (color != NULL, NULL);

  if (color_chunk == NULL)
    color_chunk = g_mem_chunk_new ("colors",
				   sizeof (GdkColor),
				   4096,
				   G_ALLOC_AND_FREE);

  new_color = g_chunk_new (GdkColor, color_chunk);
  *new_color = *color;
  return new_color;
}

/*
 *--------------------------------------------------------------
 * gdk_color_free
 *
 *   Free a color structure obtained from gdk_color_copy.  Do not use
 *   with other color structures.
 *
 * Arguments:
 *   "color" is the color struct to free.
 *
 *-------------------------------------------------------------- */

void
gdk_color_free (GdkColor *color)
{
  g_assert (color_chunk != NULL);
  g_return_if_fail (color != NULL);

  g_mem_chunk_free (color_chunk, color);
}

gint
gdk_color_white (GdkColormap *colormap,
		 GdkColor    *color)
{
  gint return_val;

  g_return_val_if_fail (colormap != NULL, FALSE);

  if (color)
    {
      color->pixel = 0x07;
      color->red = 65535;
      color->green = 65535;
      color->blue = 65535;

      return_val = gdk_color_alloc (colormap, color);
    }
  else
    return_val = FALSE;

  return return_val;
}

gint
gdk_color_black (GdkColormap *colormap,
		 GdkColor    *color)
{
  gint return_val;

  g_return_val_if_fail (colormap != NULL, FALSE);

  if (color)
    {
      color->pixel = 0;
      color->red = 0;
      color->green = 0;
      color->blue = 0;

      return_val = gdk_color_alloc (colormap, color);
    }
  else
    return_val = FALSE;

  return return_val;
}

gboolean
gdk_color_parse (const gchar *spec,
		 GdkColor *color)
{
  return FALSE;
}

/********************
 * Color allocation *
 ********************/

gint
gdk_colormap_alloc_colors (GdkColormap *colormap,
			   GdkColor    *colors,
			   gint         ncolors,
			   gboolean     writeable,
			   gboolean     best_match,
			   gboolean    *success)
{
  gint i;

  for (i=0; i<ncolors; i++) {
    colors[i].pixel = (colors[i].red > 32768) * 4 +
                      (colors[i].green > 32768) * 2 +
                      (colors[i].blue > 32768);
    success[i] = TRUE;	/* FIXME: dirty hack to stop complains */
  }

  return ncolors;
}

gboolean
gdk_colormap_alloc_color (GdkColormap *colormap,
			  GdkColor    *color,
			  gboolean     writeable,
			  gboolean     best_match)
{
  gboolean success;

  gdk_colormap_alloc_colors (colormap, color, 1, writeable, best_match,
			     &success);

  return success;
}

/* This is almost identical to gdk_colors_free.
 * Keep them in sync!
 */
void
gdk_colormap_free_colors (GdkColormap *colormap,
			  GdkColor    *colors,
			  gint         ncolors)
{
}

gboolean
gdk_color_alloc (GdkColormap *colormap,
		 GdkColor    *color)
{
  gboolean success;

  gdk_colormap_alloc_colors (colormap, color, 1, FALSE, TRUE, &success);

  return success;
}

gboolean
gdk_color_change (GdkColormap *colormap,
		  GdkColor    *color)
{
  return FALSE;
}

guint
gdk_color_hash (const GdkColor *colora,
		const GdkColor *colorb)
{
  return ((colora->red) +
	  (colora->green << 11) +
	  (colora->blue << 22) +
	  (colora->blue >> 6));
}

gint
gdk_color_equal (const GdkColor *colora,
		 const GdkColor *colorb)
{
  g_return_val_if_fail (colora != NULL, FALSE);
  g_return_val_if_fail (colorb != NULL, FALSE);

  return ((colora->red == colorb->red) &&
	  (colora->green == colorb->green) &&
	  (colora->blue == colorb->blue));
}