gdkcolor-win32.c

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/* 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.
 */

/*
 * Modified by the GTK+ Team and others 1997-1999.  See the AUTHORS
 * file for a list of people on the GTK+ Team.  See the ChangeLog
 * files for a list of changes.  These files are distributed with
 * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
 */

#include "config.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include "gdkcolor.h"
#include "gdkwin32.h"

static gint gdk_colormap_match_color(GdkColormap * cmap,
                                     GdkColor * color,
                                     const gchar * available);
static void gdk_colormap_add(GdkColormap * cmap);
static void gdk_colormap_remove(GdkColormap * cmap);
static guint gdk_colormap_hash(Colormap * cmap);
static gint gdk_colormap_cmp(Colormap * a, Colormap * b);

static GHashTable *colormap_hash = NULL;

static Status
alloc_color_cells(Colormap colormap,
                  gboolean contig,
                  unsigned long plane_masks_return[],
                  unsigned int nplanes,
                  unsigned long pixels_return[], unsigned int npixels)
{
   unsigned int i, nfree, iret;

   nfree = 0;
   for (i = 0; i < colormap->size && nfree < npixels; i++)
      if (!colormap->in_use[i])
         nfree++;

   if (colormap->size + npixels - nfree > colormap->sizepalette) {
      g_warning("alloc_color_cells: too large palette: %d",
                colormap->size + npixels);
      return FALSE;
   }

   iret = 0;
   for (i = 0; i < colormap->size && iret < npixels; i++)
      if (!colormap->in_use[i]) {
         colormap->in_use[i] = TRUE;
         pixels_return[iret] = i;
         iret++;
      }

   if (nfree < npixels) {
      int nmore = npixels - nfree;

      /* I don't understand why, if the code below in #if 0 is
         enabled, gdkrgb fails miserably. The palette doesn't get
         realized correctly. There doesn't seem to be any harm done by
         keeping this code out, either.  */
#ifdef SOME_STRANGE_BUG
      if (!ResizePalette(colormap->palette, colormap->size + nmore)) {
         WIN32_GDI_FAILED("ResizePalette")
             return FALSE;
      }
      g_print("alloc_color_cells: %#x to %d\n",
              colormap->palette, colormap->size + nmore);
#endif
      for (i = colormap->size; i < colormap->size + nmore; i++) {
         pixels_return[iret] = i;
         iret++;
         colormap->in_use[i] = TRUE;
      }
#ifdef SOME_STRANGE_BUG
      colormap->size += nmore;
#endif
   }
   return TRUE;
}

/* The following functions are from Tk8.0, but heavily modified.
   Here are tk's licensing terms. I hope these terms don't conflict
   with the GNU Library General Public License? They shouldn't, as
   they are looser that the GLPL, yes? */

/*
This software is copyrighted by the Regents of the University of
California, Sun Microsystems, Inc., and other parties.  The following
terms apply to all files associated with the software unless explicitly
disclaimed in individual files.

The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose, provided
that existing copyright notices are retained in all copies and that this
notice is included verbatim in any distributions. No written agreement,
license, or royalty fee is required for any of the authorized uses.
Modifications to this software may be copyrighted by their authors
and need not follow the licensing terms described here, provided that
the new terms are clearly indicated on the first page of each file where
they apply.

IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.

THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.

GOVERNMENT USE: If you are acquiring this software on behalf of the
U.S. government, the Government shall have only "Restricted Rights"
in the software and related documentation as defined in the Federal 
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
are acquiring the software on behalf of the Department of Defense, the
software shall be classified as "Commercial Computer Software" and the
Government shall have only "Restricted Rights" as defined in Clause
252.227-7013 (c) (1) of DFARs.  Notwithstanding the foregoing, the
authors grant the U.S. Government and others acting in its behalf
permission to use and distribute the software in accordance with the
terms specified in this license.
*/
/*
 *----------------------------------------------------------------------
 *
 * XAllocColor --
 *
 * Find the closest available color to the specified XColor.
 *
 * Results:
 * Updates the color argument and returns 1 on success.  Otherwise
 * returns 0.
 *
 * Side effects:
 * Allocates a new color in the palette.
 *
 *----------------------------------------------------------------------
 */

static int alloc_color(Colormap colormap, XColor * color, gulong * pixelp)
{
   PALETTEENTRY entry, closeEntry;
   unsigned int i;

   entry = *color;
   entry.peFlags = 0;

   if (colormap->rc_palette) {
      COLORREF newPixel, closePixel;
      UINT index;

      /*
       * Find the nearest existing palette entry.
       */

      newPixel = RGB(entry.peRed, entry.peGreen, entry.peBlue);
      index = GetNearestPaletteIndex(colormap->palette, newPixel);
      GetPaletteEntries(colormap->palette, index, 1, &closeEntry);
      closePixel = RGB(closeEntry.peRed, closeEntry.peGreen,
                       closeEntry.peBlue);

      if (newPixel != closePixel) {
         /* Not a perfect match. */
         if (!colormap->in_use[index]) {
            /* It was a free'd entry anyway, so we can use it, and
               set it to the correct color. */
            if (SetPaletteEntries(colormap->palette, index, 1, &entry) ==
                0)
               WIN32_GDI_FAILED("SetPaletteEntries");
         } else {
            /* The close entry found is in use, so search for a
               unused slot. */

            for (i = 0; i < colormap->size; i++)
               if (!colormap->in_use[i]) {
                  /* A free slot, use it. */
                  if (SetPaletteEntries(colormap->palette,
                                        index, 1, &entry) == 0)
                     WIN32_GDI_FAILED("SetPaletteEntries");
                  index = i;
                  break;
               }
            if (i == colormap->size) {
               /* No free slots found. If the palette isn't maximal
                  yet, grow it. */
               if (colormap->size == colormap->sizepalette) {
                  /* The palette is maximal, and no free slots available,
                     so use the close entry, then, dammit. */
                  *color = closeEntry;
               } else {
                  /* There is room to grow the palette. */
                  index = colormap->size;
                  colormap->size++;
                  if (!ResizePalette(colormap->palette, colormap->size))
                     WIN32_GDI_FAILED("ResizePalette");
                  if (SetPaletteEntries
                      (colormap->palette, index, 1, &entry) == 0)
                     WIN32_GDI_FAILED("SetPaletteEntries");
               }
            }
         }
         colormap->stale = TRUE;
      } else {
         /* We got a match, so use it. */
      }

      *pixelp = index;
      colormap->in_use[index] = TRUE;
#if 0
      g_print("alloc_color from %#x: index %d for %02x %02x %02x\n",
              colormap->palette, index,
              entry.peRed, entry.peGreen, entry.peBlue);
#endif
   } else {
      /*
       * Determine what color will actually be used on non-colormap systems.
       */
      *pixelp =
          GetNearestColor(gdk_DC,
                          RGB(entry.peRed, entry.peGreen, entry.peBlue));

      color->peRed = GetRValue(*pixelp);
      color->peGreen = GetGValue(*pixelp);
      color->peBlue = GetBValue(*pixelp);
   }

   return 1;
}

/*
 *----------------------------------------------------------------------
 *
 * XFreeColors --
 *
 * Deallocate a block of colors.
 *
 * Results:
 * None.
 *
 * Side effects:
 * Removes entries for the current palette and compacts the
 * remaining set.
 *
 *----------------------------------------------------------------------
 */

static void
free_colors(Colormap colormap,
            gulong * pixels, gint npixels, gulong planes)
{
   gint i;
   PALETTEENTRY entries[256];

   /*
    * We don't have to do anything for non-palette devices.
    */

   if (colormap->rc_palette) {
      int npal;
      int lowestpixel = 256;
      int highestpixel = -1;

      npal = GetPaletteEntries(colormap->palette, 0, 256, entries);
      for (i = 0; i < npixels; i++) {
         int pixel = pixels[i];

         if (pixel < lowestpixel)
            lowestpixel = pixel;
         if (pixel > highestpixel)
            highestpixel = pixel;

         colormap->in_use[pixel] = FALSE;

         entries[pixel] = entries[0];
      }
#if 0
      if (SetPaletteEntries(colormap->palette, lowestpixel,
                            highestpixel - lowestpixel + 1,
                            entries + lowestpixel) == 0)
         WIN32_GDI_FAILED("SetPaletteEntries");
#endif
      colormap->stale = TRUE;
#if 0
      g_print("free_colors %#x lowestpixel = %d, highestpixel = %d\n",
              colormap->palette, lowestpixel, highestpixel);
#endif
   }
}

/*
 *----------------------------------------------------------------------
 *
 * XCreateColormap --
 *
 * Allocate a new colormap.
 *
 * Results:
 * Returns a newly allocated colormap.
 *
 * Side effects:
 * Allocates an empty palette and color list.
 *
 *----------------------------------------------------------------------
 */

static Colormap create_colormap(HWND w, Visual * visual, gboolean alloc)
{
   char logPalBuf[sizeof(LOGPALETTE) + 256 * sizeof(PALETTEENTRY)];
   LOGPALETTE *logPalettePtr;
   Colormap colormap;
   guint i;
   HPALETTE sysPal;
   HDC hdc;

   /* Should the alloc parameter do something? */


   /* Allocate a starting palette with all of the reserved colors. */

   logPalettePtr = (LOGPALETTE *) logPalBuf;
   logPalettePtr->palVersion = 0x300;
   sysPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);
   logPalettePtr->palNumEntries =
       GetPaletteEntries(sysPal, 0, 256, logPalettePtr->palPalEntry);

   colormap = (Colormap) g_new(ColormapStruct, 1);
   colormap->size = logPalettePtr->palNumEntries;
   colormap->stale = TRUE;
   colormap->palette = CreatePalette(logPalettePtr);
   hdc = GetDC(NULL);
   colormap->rc_palette =
       ((GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE) != 0);
   if (colormap->rc_palette) {
      colormap->sizepalette = GetDeviceCaps(hdc, SIZEPALETTE);
      colormap->in_use = g_new(gboolean, colormap->sizepalette);
      /* Mark static colors in use. */
      for (i = 0; i < logPalettePtr->palNumEntries; i++)
         colormap->in_use[i] = TRUE;
      /* Mark rest not in use */
      for (i = logPalettePtr->palNumEntries; i < colormap->sizepalette;
           i++)
         colormap->in_use[i] = FALSE;
   }
   ReleaseDC(NULL, hdc);

   return colormap;
}

/*
 *----------------------------------------------------------------------
 *
 * XFreeColormap --
 *
 * Frees the resources associated with the given colormap.
 *
 * Results:
 * None.
 *
 * Side effects:
 * Deletes the palette associated with the colormap.  Note that
 * the palette must not be selected into a device context when
 * this occurs.
 *
 *----------------------------------------------------------------------
 */

static void free_colormap(Colormap colormap)
{
   if (!DeleteObject(colormap->palette)) {
      g_error("Unable to free colormap, palette is still selected.");
   }
   g_free(colormap);
}

typedef struct {
   char *name;
   unsigned char red;
   unsigned char green;
   unsigned char blue;
} XColorEntry;

static XColorEntry xColors[] = {
   {"alice blue", 240, 248, 255},
   {"AliceBlue", 240, 248, 255},
   {"antique white", 250, 235, 215},
   {"AntiqueWhite", 250, 235, 215},
   {"AntiqueWhite1", 255, 239, 219},
   {"AntiqueWhite2", 238, 223, 204},
   {"AntiqueWhite3", 205, 192, 176},
   {"AntiqueWhite4", 139, 131, 120},
   {"aquamarine", 127, 255, 212},
   {"aquamarine1", 127, 255, 212},
   {"aquamarine2", 118, 238, 198},
   {"aquamarine3", 102, 205, 170},
   {"aquamarine4", 69, 139, 116},
   {"azure", 240, 255, 255},
   {"azure1", 240, 255, 255},
   {"azure2", 224, 238, 238},
   {"azure3", 193, 205, 205},
   {"azure4", 131, 139, 139},
   {"beige", 245, 245, 220},
   {"bisque", 255, 228, 196},
   {"bisque1", 255, 228, 196},
   {"bisque2", 238, 213, 183},
   {"bisque3", 205, 183, 158},
   {"bisque4", 139, 125, 107},
   {"black", 0, 0, 0},
   {"blanched almond", 255, 235, 205},
   {"BlanchedAlmond", 255, 235, 205},
   {"blue", 0, 0, 255},
   {"blue violet", 138, 43, 226},
   {"blue1", 0, 0, 255},
   {"blue2", 0, 0, 238},
   {"blue3", 0, 0, 205},
   {"blue4", 0, 0, 139},
   {"BlueViolet", 138, 43, 226},
   {"brown", 165, 42, 42},
   {"brown1", 255, 64, 64},
   {"brown2", 238, 59, 59},
   {"brown3", 205, 51, 51},
   {"brown4", 139, 35, 35},
   {"burlywood", 222, 184, 135},
   {"burlywood1", 255, 211, 155},
   {"burlywood2", 238, 197, 145},
   {"burlywood3", 205, 170, 125},
   {"burlywood4", 139, 115, 85},
   {"cadet blue", 95, 158, 160},
   {"CadetBlue", 95, 158, 160},
   {"CadetBlue1", 152, 245, 255},
   {"CadetBlue2", 142, 229, 238},
   {"CadetBlue3", 122, 197, 205},
   {"CadetBlue4", 83, 134, 139},
   {"chartreuse", 127, 255, 0},
   {"chartreuse1", 127, 255, 0},
   {"chartreuse2", 118, 238, 0},
   {"chartreuse3", 102, 205, 0},
   {"chartreuse4", 69, 139, 0},
   {"chocolate", 210, 105, 30},
   {"chocolate1", 255, 127, 36},
   {"chocolate2", 238, 118, 33},
   {"chocolate3", 205, 102, 29},
   {"chocolate4", 139, 69, 19},
   {"coral", 255, 127, 80},
   {"coral1", 255, 114, 86},
   {"coral2", 238, 106, 80},
   {"coral3", 205, 91, 69},
   {"coral4", 139, 62, 47},
   {"cornflower blue", 100, 149, 237},
   {"CornflowerBlue", 100, 149, 237},
   {"cornsilk", 255, 248, 220},
   {"cornsilk1", 255, 248, 220},
   {"cornsilk2", 238, 232, 205},
   {"cornsilk3", 205, 200, 177},
   {"cornsilk4", 139, 136, 120},
   {"cyan", 0, 255, 255},
   {"cyan1", 0, 255, 255},
   {"cyan2", 0, 238, 238},
   {"cyan3", 0, 205, 205},
   {"cyan4", 0, 139, 139},
   {"dark blue", 0, 0, 139},
   {"dark cyan", 0, 139, 139},
   {"dark goldenrod", 184, 134, 11},
   {"dark gray", 169, 169, 169},
   {"dark green", 0, 100, 0},
   {"dark grey", 169, 169, 169},
   {"dark khaki", 189, 183, 107},
   {"dark magenta", 139, 0, 139},
   {"dark olive green", 85, 107, 47},
   {"dark orange", 255, 140, 0},
   {"dark orchid", 153, 50, 204},
   {"dark red", 139, 0, 0},
   {"dark salmon", 233, 150, 122},
   {"dark sea green", 143, 188, 143},
   {"dark slate blue", 72, 61, 139},
   {"dark slate gray", 47, 79, 79},
   {"dark slate grey", 47, 79, 79},
   {"dark turquoise", 0, 206, 209},
   {"dark violet", 148, 0, 211},
   {"DarkBlue", 0, 0, 139},
   {"DarkCyan", 0, 139, 139},
   {"DarkGoldenrod", 184, 134, 11},
   {"DarkGoldenrod1", 255, 185, 15},
   {"DarkGoldenrod2", 238, 173, 14},
   {"DarkGoldenrod3", 205, 149, 12},
   {"DarkGoldenrod4", 139, 101, 8},
   {"DarkGray", 169, 169, 169},
   {"DarkGreen", 0, 100, 0},
   {"DarkGrey", 169, 169, 169},
   {"DarkKhaki", 189, 183, 107},
   {"DarkMagenta", 139, 0, 139},
   {"DarkOliveGreen", 85, 107, 47},
   {"DarkOliveGreen1", 202, 255, 112},
   {"DarkOliveGreen2", 188, 238, 104},
   {"DarkOliveGreen3", 162, 205, 90},
   {"DarkOliveGreen4", 110, 139, 61},
   {"DarkOrange", 255, 140, 0},
   {"DarkOrange1", 255, 127, 0},
   {"DarkOrange2", 238, 118, 0},
   {"DarkOrange3", 205, 102, 0},
   {"DarkOrange4", 139, 69, 0},
   {"DarkOrchid", 153, 50, 204},
   {"DarkOrchid1", 191, 62, 255},
   {"DarkOrchid2", 178, 58, 238},
   {"DarkOrchid3", 154, 50, 205},
   {"DarkOrchid4", 104, 34, 139},
   {"DarkRed", 139, 0, 0},
   {"DarkSalmon", 233, 150, 122},
   {"DarkSeaGreen", 143, 188, 143},
   {"DarkSeaGreen1", 193, 255, 193},
   {"DarkSeaGreen2", 180, 238, 180},
   {"DarkSeaGreen3", 155, 205, 155},
   {"DarkSeaGreen4", 105, 139, 105},
   {"DarkSlateBlue", 72, 61, 139},
   {"DarkSlateGray", 47, 79, 79},
   {"DarkSlateGray1", 151, 255, 255},
   {"DarkSlateGray2", 141, 238, 238},
   {"DarkSlateGray3", 121, 205, 205},
   {"DarkSlateGray4", 82, 139, 139},
   {"DarkSlateGrey", 47, 79, 79},
   {"DarkTurquoise", 0, 206, 209},
   {"DarkViolet", 148, 0, 211},
   {"deep pink", 255, 20, 147},
   {"deep sky blue", 0, 191, 255},
   {"DeepPink", 255, 20, 147},
   {"DeepPink1", 255, 20, 147},
   {"DeepPink2", 238, 18, 137},
   {"DeepPink3", 205, 16, 118},
   {"DeepPink4", 139, 10, 80},
   {"DeepSkyBlue", 0, 191, 255},
   {"DeepSkyBlue1", 0, 191, 255},
   {"DeepSkyBlue2", 0, 178, 238},
   {"DeepSkyBlue3", 0, 154, 205},
   {"DeepSkyBlue4", 0, 104, 139},
   {"dim gray", 105, 105, 105},
   {"dim grey", 105, 105, 105},
   {"DimGray", 105, 105, 105},
   {"DimGrey", 105, 105, 105},
   {"dodger blue", 30, 144, 255},
   {"DodgerBlue", 30, 144, 255},
   {"DodgerBlue1", 30, 144, 255},
   {"DodgerBlue2", 28, 134, 238},
   {"DodgerBlue3", 24, 116, 205},
   {"DodgerBlue4", 16, 78, 139},
   {"firebrick", 178, 34, 34},
   {"firebrick1", 255, 48, 48},
   {"firebrick2", 238, 44, 44},
   {"firebrick3", 205, 38, 38},
   {"firebrick4", 139, 26, 26},
   {"floral white", 255, 250, 240},
   {"FloralWhite", 255, 250, 240},
   {"forest green", 34, 139, 34},
   {"ForestGreen", 34, 139, 34},
   {"gainsboro", 220, 220, 220},
   {"ghost white", 248, 248, 255},
   {"GhostWhite", 248, 248, 255},
   {"gold", 255, 215, 0},
   {"gold1", 255, 215, 0},
   {"gold2", 238, 201, 0},
   {"gold3", 205, 173, 0},
   {"gold4", 139, 117, 0},
   {"goldenrod", 218, 165, 32},
   {"goldenrod1", 255, 193, 37},
   {"goldenrod2", 238, 180, 34},
   {"goldenrod3", 205, 155, 29},
   {"goldenrod4", 139, 105, 20},
   {"gray", 190, 190, 190},
   {"gray0", 0, 0, 0},
   {"gray1", 3, 3, 3},
   {"gray10", 26, 26, 26},
   {"gray100", 255, 255, 255},
   {"gray11", 28, 28, 28},
   {"gray12", 31, 31, 31},
   {"gray13", 33, 33, 33},
   {"gray14", 36, 36, 36},
   {"gray15", 38, 38, 38},
   {"gray16", 41, 41, 41},
   {"gray17", 43, 43, 43},
   {"gray18", 46, 46, 46},
   {"gray19", 48, 48, 48},
   {"gray2", 5, 5, 5},
   {"gray20", 51, 51, 51},
   {"gray21", 54, 54, 54},
   {"gray22", 56, 56, 56},
   {"gray23", 59, 59, 59},
   {"gray24", 61, 61, 61},
   {"gray25", 64, 64, 64},
   {"gray26", 66, 66, 66},
   {"gray27", 69, 69, 69},
   {"gray28", 71, 71, 71},
   {"gray29", 74, 74, 74},
   {"gray3", 8, 8, 8},
   {"gray30", 77, 77, 77},
   {"gray31", 79, 79, 79},
   {"gray32", 82, 82, 82},
   {"gray33", 84, 84, 84},
   {"gray34", 87, 87, 87},
   {"gray35", 89, 89, 89},
   {"gray36", 92, 92, 92},
   {"gray37", 94, 94, 94},
   {"gray38", 97, 97, 97},
   {"gray39", 99, 99, 99},
   {"gray4", 10, 10, 10},
   {"gray40", 102, 102, 102},
   {"gray41", 105, 105, 105},
   {"gray42", 107, 107, 107},
   {"gray43", 110, 110, 110},
   {"gray44", 112, 112, 112},
   {"gray45", 115, 115, 115},
   {"gray46", 117, 117, 117},
   {"gray47", 120, 120, 120},
   {"gray48", 122, 122, 122},
   {"gray49", 125, 125, 125},
   {"gray5", 13, 13, 13},
   {"gray50", 127, 127, 127},
   {"gray51", 130, 130, 130},
   {"gray52", 133, 133, 133},
   {"gray53", 135, 135, 135},
   {"gray54", 138, 138, 138},
   {"gray55", 140, 140, 140},
   {"gray56", 143, 143, 143},
   {"gray57", 145, 145, 145},
   {"gray58", 148, 148, 148},
   {"gray59", 150, 150, 150},
   {"gray6", 15, 15, 15},
   {"gray60", 153, 153, 153},
   {"gray61", 156, 156, 156},
   {"gray62", 158, 158, 158},
   {"gray63", 161, 161, 161},
   {"gray64", 163, 163, 163},
   {"gray65", 166, 166, 166},
   {"gray66", 168, 168, 168},
   {"gray67", 171, 171, 171},
   {"gray68", 173, 173, 173},
   {"gray69", 176, 176, 176},
   {"gray7", 18, 18, 18},
   {"gray70", 179, 179, 179},
   {"gray71", 181, 181, 181},
   {"gray72", 184, 184, 184},
   {"gray73", 186, 186, 186},
   {"gray74", 189, 189, 189},
   {"gray75", 191, 191, 191},
   {"gray76", 194, 194, 194},
   {"gray77", 196, 196, 196},
   {"gray78", 199, 199, 199},
   {"gray79", 201, 201, 201},
   {"gray8", 20, 20, 20},
   {"gray80", 204, 204, 204},
   {"gray81", 207, 207, 207},
   {"gray82", 209, 209, 209},
   {"gray83", 212, 212, 212},
   {"gray84", 214, 214, 214},
   {"gray85", 217, 217, 217},
   {"gray86", 219, 219, 219},
   {"gray87", 222, 222, 222},
   {"gray88", 224, 224, 224},
   {"gray89", 227, 227, 227},
   {"gray9", 23, 23, 23},
   {"gray90", 229, 229, 229},
   {"gray91", 232, 232, 232},
   {"gray92", 235, 235, 235},
   {"gray93", 237, 237, 237},
   {"gray94", 240, 240, 240},
   {"gray95", 242, 242, 242},
   {"gray96", 245, 245, 245},
   {"gray97", 247, 247, 247},
   {"gray98", 250, 250, 250},
   {"gray99", 252, 252, 252},
   {"green", 0, 255, 0},
   {"green yellow", 173, 255, 47},
   {"green1", 0, 255, 0},
   {"green2", 0, 238, 0},
   {"green3", 0, 205, 0},
   {"green4", 0, 139, 0},
   {"GreenYellow", 173, 255, 47},
   {"grey", 190, 190, 190},
   {"grey0", 0, 0, 0},
   {"grey1", 3, 3, 3},
   {"grey10", 26, 26, 26},
   {"grey100", 255, 255, 255},
   {"grey11", 28, 28, 28},
   {"grey12", 31, 31, 31},
   {"grey13", 33, 33, 33},
   {"grey14", 36, 36, 36},
   {"grey15", 38, 38, 38},
   {"grey16", 41, 41, 41},
   {"grey17", 43, 43, 43},
   {"grey18", 46, 46, 46},
   {"grey19", 48, 48, 48},
   {"grey2", 5, 5, 5},
   {"grey20", 51, 51, 51},
   {"grey21", 54, 54, 54},
   {"grey22", 56, 56, 56},
   {"grey23", 59, 59, 59},
   {"grey24", 61, 61, 61},
   {"grey25", 64, 64, 64},
   {"grey26", 66, 66, 66},
   {"grey27", 69, 69, 69},
   {"grey28", 71, 71, 71},
   {"grey29", 74, 74, 74},
   {"grey3", 8, 8, 8},
   {"grey30", 77, 77, 77},
   {"grey31", 79, 79, 79},
   {"grey32", 82, 82, 82},
   {"grey33", 84, 84, 84},
   {"grey34", 87, 87, 87},
   {"grey35", 89, 89, 89},
   {"grey36", 92, 92, 92},
   {"grey37", 94, 94, 94},
   {"grey38", 97, 97, 97},
   {"grey39", 99, 99, 99},
   {"grey4", 10, 10, 10},
   {"grey40", 102, 102, 102},
   {"grey41", 105, 105, 105},
   {"grey42", 107, 107, 107},
   {"grey43", 110, 110, 110},
   {"grey44", 112, 112, 112},
   {"grey45", 115, 115, 115},
   {"grey46", 117, 117, 117},
   {"grey47", 120, 120, 120},
   {"grey48", 122, 122, 122},
   {"grey49", 125, 125, 125},
   {"grey5", 13, 13, 13},
   {"grey50", 127, 127, 127},
   {"grey51", 130, 130, 130},
   {"grey52", 133, 133, 133},
   {"grey53", 135, 135, 135},
   {"grey54", 138, 138, 138},
   {"grey55", 140, 140, 140},
   {"grey56", 143, 143, 143},
   {"grey57", 145, 145, 145},
   {"grey58", 148, 148, 148},
   {"grey59", 150, 150, 150},
   {"grey6", 15, 15, 15},
   {"grey60", 153, 153, 153},
   {"grey61", 156, 156, 156},
   {"grey62", 158, 158, 158},
   {"grey63", 161, 161, 161},
   {"grey64", 163, 163, 163},
   {"grey65", 166, 166, 166},
   {"grey66", 168, 168, 168},
   {"grey67", 171, 171, 171},
   {"grey68", 173, 173, 173},
   {"grey69", 176, 176, 176},
   {"grey7", 18, 18, 18},
   {"grey70", 179, 179, 179},
   {"grey71", 181, 181, 181},
   {"grey72", 184, 184, 184},
   {"grey73", 186, 186, 186},
   {"grey74", 189, 189, 189},
   {"grey75", 191, 191, 191},
   {"grey76", 194, 194, 194},
   {"grey77", 196, 196, 196},
   {"grey78", 199, 199, 199},
   {"grey79", 201, 201, 201},
   {"grey8", 20, 20, 20},
   {"grey80", 204, 204, 204},
   {"grey81", 207, 207, 207},
   {"grey82", 209, 209, 209},
   {"grey83", 212, 212, 212},
   {"grey84", 214, 214, 214},
   {"grey85", 217, 217, 217},
   {"grey86", 219, 219, 219},
   {"grey87", 222, 222, 222},
   {"grey88", 224, 224, 224},
   {"grey89", 227, 227, 227},
   {"grey9", 23, 23, 23},
   {"grey90", 229, 229, 229},
   {"grey91", 232, 232, 232},
   {"grey92", 235, 235, 235},
   {"grey93", 237, 237, 237},
   {"grey94", 240, 240, 240},
   {"grey95", 242, 242, 242},
   {"grey96", 245, 245, 245},
   {"grey97", 247, 247, 247},
   {"grey98", 250, 250, 250},
   {"grey99", 252, 252, 252},
   {"honeydew", 240, 255, 240},
   {"honeydew1", 240, 255, 240},
   {"honeydew2", 224, 238, 224},
   {"honeydew3", 193, 205, 193},
   {"honeydew4", 131, 139, 131},
   {"hot pink", 255, 105, 180},
   {"HotPink", 255, 105, 180},
   {"HotPink1", 255, 110, 180},
   {"HotPink2", 238, 106, 167},
   {"HotPink3", 205, 96, 144},
   {"HotPink4", 139, 58, 98},
   {"indian red", 205, 92, 92},
   {"IndianRed", 205, 92, 92},
   {"IndianRed1", 255, 106, 106},
   {"IndianRed2", 238, 99, 99},
   {"IndianRed3", 205, 85, 85},
   {"IndianRed4", 139, 58, 58},
   {"ivory", 255, 255, 240},
   {"ivory1", 255, 255, 240},
   {"ivory2", 238, 238, 224},
   {"ivory3", 205, 205, 193},
   {"ivory4", 139, 139, 131},
   {"khaki", 240, 230, 140},
   {"khaki1", 255, 246, 143},
   {"khaki2", 238, 230, 133},
   {"khaki3", 205, 198, 115},
   {"khaki4", 139, 134, 78},
   {"lavender", 230, 230, 250},
   {"lavender blush", 255, 240, 245},
   {"LavenderBlush", 255, 240, 245},
   {"LavenderBlush1", 255, 240, 245},
   {"LavenderBlush2", 238, 224, 229},
   {"LavenderBlush3", 205, 193, 197},
   {"LavenderBlush4", 139, 131, 134},
   {"lawn green", 124, 252, 0},
   {"LawnGreen", 124, 252, 0},
   {"lemon chiffon", 255, 250, 205},
   {"LemonChiffon", 255, 250, 205},
   {"LemonChiffon1", 255, 250, 205},
   {"LemonChiffon2", 238, 233, 191},
   {"LemonChiffon3", 205, 201, 165},
   {"LemonChiffon4", 139, 137, 112},
   {"light blue", 173, 216, 230},
   {"light coral", 240, 128, 128},
   {"light cyan", 224, 255, 255},
   {"light goldenrod", 238, 221, 130},
   {"light goldenrod yellow", 250, 250, 210},
   {"light gray", 211, 211, 211},
   {"light green", 144, 238, 144},
   {"light grey", 211, 211, 211},
   {"light pink", 255, 182, 193},
   {"light salmon", 255, 160, 122},
   {"light sea green", 32, 178, 170},
   {"light sky blue", 135, 206, 250},
   {"light slate blue", 132, 112, 255},
   {"light slate gray", 119, 136, 153},
   {"light slate grey", 119, 136, 153},
   {"light steel blue", 176, 196, 222},
   {"light yellow", 255, 255, 224},
   {"LightBlue", 173, 216, 230},
   {"LightBlue1", 191, 239, 255},
   {"LightBlue2", 178, 223, 238},
   {"LightBlue3", 154, 192, 205},
   {"LightBlue4", 104, 131, 139},
   {"LightCoral", 240, 128, 128},
   {"LightCyan", 224, 255, 255},
   {"LightCyan1", 224, 255, 255},
   {"LightCyan2", 209, 238, 238},
   {"LightCyan3", 180, 205, 205},
   {"LightCyan4", 122, 139, 139},
   {"LightGoldenrod", 238, 221, 130},
   {"LightGoldenrod1", 255, 236, 139},
   {"LightGoldenrod2", 238, 220, 130},
   {"LightGoldenrod3", 205, 190, 112},
   {"LightGoldenrod4", 139, 129, 76},
   {"LightGoldenrodYellow", 250, 250, 210},
   {"LightGray", 211, 211, 211},
   {"LightGreen", 144, 238, 144},
   {"LightGrey", 211, 211, 211},
   {"LightPink", 255, 182, 193},
   {"LightPink1", 255, 174, 185},
   {"LightPink2", 238, 162, 173},
   {"LightPink3", 205, 140, 149},
   {"LightPink4", 139, 95, 101},
   {"LightSalmon", 255, 160, 122},
   {"LightSalmon1", 255, 160, 122},
   {"LightSalmon2", 238, 149, 114},
   {"LightSalmon3", 205, 129, 98},
   {"LightSalmon4", 139, 87, 66},
   {"LightSeaGreen", 32, 178, 170},
   {"LightSkyBlue", 135, 206, 250},
   {"LightSkyBlue1", 176, 226, 255},
   {"LightSkyBlue2", 164, 211, 238},
   {"LightSkyBlue3", 141, 182, 205},
   {"LightSkyBlue4", 96, 123, 139},
   {"LightSlateBlue", 132, 112, 255},
   {"LightSlateGray", 119, 136, 153},
   {"LightSlateGrey", 119, 136, 153},
   {"LightSteelBlue", 176, 196, 222},
   {"LightSteelBlue1", 202, 225, 255},
   {"LightSteelBlue2", 188, 210, 238},
   {"LightSteelBlue3", 162, 181, 205},
   {"LightSteelBlue4", 110, 123, 139},
   {"LightYellow", 255, 255, 224},
   {"LightYellow1", 255, 255, 224},
   {"LightYellow2", 238, 238, 209},
   {"LightYellow3", 205, 205, 180},
   {"LightYellow4", 139, 139, 122},
   {"lime green", 50, 205, 50},
   {"LimeGreen", 50, 205, 50},
   {"linen", 250, 240, 230},
   {"magenta", 255, 0, 255},
   {"magenta1", 255, 0, 255},
   {"magenta2", 238, 0, 238},
   {"magenta3", 205, 0, 205},
   {"magenta4", 139, 0, 139},
   {"maroon", 176, 48, 96},
   {"maroon1", 255, 52, 179},
   {"maroon2", 238, 48, 167},
   {"maroon3", 205, 41, 144},
   {"maroon4", 139, 28, 98},
   {"medium aquamarine", 102, 205, 170},
   {"medium blue", 0, 0, 205},
   {"medium orchid", 186, 85, 211},
   {"medium purple", 147, 112, 219},
   {"medium sea green", 60, 179, 113},
   {"medium slate blue", 123, 104, 238},
   {"medium spring green", 0, 250, 154},
   {"medium turquoise", 72, 209, 204},
   {"medium violet red", 199, 21, 133},
   {"MediumAquamarine", 102, 205, 170},
   {"MediumBlue", 0, 0, 205},
   {"MediumOrchid", 186, 85, 211},
   {"MediumOrchid1", 224, 102, 255},
   {"MediumOrchid2", 209, 95, 238},
   {"MediumOrchid3", 180, 82, 205},
   {"MediumOrchid4", 122, 55, 139},
   {"MediumPurple", 147, 112, 219},
   {"MediumPurple1", 171, 130, 255},
   {"MediumPurple2", 159, 121, 238},
   {"MediumPurple3", 137, 104, 205},
   {"MediumPurple4", 93, 71, 139},
   {"MediumSeaGreen", 60, 179, 113},
   {"MediumSlateBlue", 123, 104, 238},
   {"MediumSpringGreen", 0, 250, 154},
   {"MediumTurquoise", 72, 209, 204},
   {"MediumVioletRed", 199, 21, 133},
   {"midnight blue", 25, 25, 112},
   {"MidnightBlue", 25, 25, 112},
   {"mint cream", 245, 255, 250},
   {"MintCream", 245, 255, 250},
   {"misty rose", 255, 228, 225},
   {"MistyRose", 255, 228, 225},
   {"MistyRose1", 255, 228, 225},
   {"MistyRose2", 238, 213, 210},
   {"MistyRose3", 205, 183, 181},
   {"MistyRose4", 139, 125, 123},
   {"moccasin", 255, 228, 181},
   {"navajo white", 255, 222, 173},
   {"NavajoWhite", 255, 222, 173},
   {"NavajoWhite1", 255, 222, 173},
   {"NavajoWhite2", 238, 207, 161},
   {"NavajoWhite3", 205, 179, 139},
   {"NavajoWhite4", 139, 121, 94},
   {"navy", 0, 0, 128},
   {"navy blue", 0, 0, 128},
   {"NavyBlue", 0, 0, 128},
   {"old lace", 253, 245, 230},
   {"OldLace", 253, 245, 230},
   {"olive drab", 107, 142, 35},
   {"OliveDrab", 107, 142, 35},
   {"OliveDrab1", 192, 255, 62},
   {"OliveDrab2", 179, 238, 58},
   {"OliveDrab3", 154, 205, 50},
   {"OliveDrab4", 105, 139, 34},
   {"orange", 255, 165, 0},
   {"orange red", 255, 69, 0},
   {"orange1", 255, 165, 0},
   {"orange2", 238, 154, 0},
   {"orange3", 205, 133, 0},
   {"orange4", 139, 90, 0},
   {"OrangeRed", 255, 69, 0},
   {"OrangeRed1", 255, 69, 0},
   {"OrangeRed2", 238, 64, 0},
   {"OrangeRed3", 205, 55, 0},
   {"OrangeRed4", 139, 37, 0},
   {"orchid", 218, 112, 214},
   {"orchid1", 255, 131, 250},
   {"orchid2", 238, 122, 233},
   {"orchid3", 205, 105, 201},
   {"orchid4", 139, 71, 137},
   {"pale goldenrod", 238, 232, 170},
   {"pale green", 152, 251, 152},
   {"pale turquoise", 175, 238, 238},
   {"pale violet red", 219, 112, 147},
   {"PaleGoldenrod", 238, 232, 170},
   {"PaleGreen", 152, 251, 152},
   {"PaleGreen1", 154, 255, 154},
   {"PaleGreen2", 144, 238, 144},
   {"PaleGreen3", 124, 205, 124},
   {"PaleGreen4", 84, 139, 84},
   {"PaleTurquoise", 175, 238, 238},
   {"PaleTurquoise1", 187, 255, 255},
   {"PaleTurquoise2", 174, 238, 238},
   {"PaleTurquoise3", 150, 205, 205},
   {"PaleTurquoise4", 102, 139, 139},
   {"PaleVioletRed", 219, 112, 147},
   {"PaleVioletRed1", 255, 130, 171},
   {"PaleVioletRed2", 238, 121, 159},
   {"PaleVioletRed3", 205, 104, 137},
   {"PaleVioletRed4", 139, 71, 93},
   {"papaya whip", 255, 239, 213},
   {"PapayaWhip", 255, 239, 213},
   {"peach puff", 255, 218, 185},
   {"PeachPuff", 255, 218, 185},
   {"PeachPuff1", 255, 218, 185},
   {"PeachPuff2", 238, 203, 173},
   {"PeachPuff3", 205, 175, 149},
   {"PeachPuff4", 139, 119, 101},
   {"peru", 205, 133, 63},
   {"pink", 255, 192, 203},
   {"pink1", 255, 181, 197},
   {"pink2", 238, 169, 184},
   {"pink3", 205, 145, 158},
   {"pink4", 139, 99, 108},
   {"plum", 221, 160, 221},
   {"plum1", 255, 187, 255},
   {"plum2", 238, 174, 238},
   {"plum3", 205, 150, 205},
   {"plum4", 139, 102, 139},
   {"powder blue", 176, 224, 230},
   {"PowderBlue", 176, 224, 230},
   {"purple", 160, 32, 240},
   {"purple1", 155, 48, 255},
   {"purple2", 145, 44, 238},
   {"purple3", 125, 38, 205},
   {"purple4", 85, 26, 139},
   {"red", 255, 0, 0},
   {"red1", 255, 0, 0},
   {"red2", 238, 0, 0},
   {"red3", 205, 0, 0},
   {"red4", 139, 0, 0},
   {"rosy brown", 188, 143, 143},
   {"RosyBrown", 188, 143, 143},
   {"RosyBrown1", 255, 193, 193},
   {"RosyBrown2", 238, 180, 180},
   {"RosyBrown3", 205, 155, 155},
   {"RosyBrown4", 139, 105, 105},
   {"royal blue", 65, 105, 225},
   {"RoyalBlue", 65, 105, 225},
   {"RoyalBlue1", 72, 118, 255},
   {"RoyalBlue2", 67, 110, 238},
   {"RoyalBlue3", 58, 95, 205},
   {"RoyalBlue4", 39, 64, 139},
   {"saddle brown", 139, 69, 19},
   {"SaddleBrown", 139, 69, 19},
   {"salmon", 250, 128, 114},
   {"salmon1", 255, 140, 105},
   {"salmon2", 238, 130, 98},
   {"salmon3", 205, 112, 84},
   {"salmon4", 139, 76, 57},
   {"sandy brown", 244, 164, 96},
   {"SandyBrown", 244, 164, 96},
   {"sea green", 46, 139, 87},
   {"SeaGreen", 46, 139, 87},
   {"SeaGreen1", 84, 255, 159},
   {"SeaGreen2", 78, 238, 148},
   {"SeaGreen3", 67, 205, 128},
   {"SeaGreen4", 46, 139, 87},
   {"seashell", 255, 245, 238},
   {"seashell1", 255, 245, 238},
   {"seashell2", 238, 229, 222},
   {"seashell3", 205, 197, 191},
   {"seashell4", 139, 134, 130},
   {"sienna", 160, 82, 45},
   {"sienna1", 255, 130, 71},
   {"sienna2", 238, 121, 66},
   {"sienna3", 205, 104, 57},
   {"sienna4", 139, 71, 38},
   {"sky blue", 135, 206, 235},
   {"SkyBlue", 135, 206, 235},
   {"SkyBlue1", 135, 206, 255},
   {"SkyBlue2", 126, 192, 238},
   {"SkyBlue3", 108, 166, 205},
   {"SkyBlue4", 74, 112, 139},
   {"slate blue", 106, 90, 205},
   {"slate gray", 112, 128, 144},
   {"slate grey", 112, 128, 144},
   {"SlateBlue", 106, 90, 205},
   {"SlateBlue1", 131, 111, 255},
   {"SlateBlue2", 122, 103, 238},
   {"SlateBlue3", 105, 89, 205},
   {"SlateBlue4", 71, 60, 139},
   {"SlateGray", 112, 128, 144},
   {"SlateGray1", 198, 226, 255},
   {"SlateGray2", 185, 211, 238},
   {"SlateGray3", 159, 182, 205},
   {"SlateGray4", 108, 123, 139},
   {"SlateGrey", 112, 128, 144},
   {"snow", 255, 250, 250},
   {"snow1", 255, 250, 250},
   {"snow2", 238, 233, 233},
   {"snow3", 205, 201, 201},
   {"snow4", 139, 137, 137},
   {"spring green", 0, 255, 127},
   {"SpringGreen", 0, 255, 127},
   {"SpringGreen1", 0, 255, 127},
   {"SpringGreen2", 0, 238, 118},
   {"SpringGreen3", 0, 205, 102},
   {"SpringGreen4", 0, 139, 69},
   {"steel blue", 70, 130, 180},
   {"SteelBlue", 70, 130, 180},
   {"SteelBlue1", 99, 184, 255},
   {"SteelBlue2", 92, 172, 238},
   {"SteelBlue3", 79, 148, 205},
   {"SteelBlue4", 54, 100, 139},
   {"tan", 210, 180, 140},
   {"tan1", 255, 165, 79},
   {"tan2", 238, 154, 73},
   {"tan3", 205, 133, 63},
   {"tan4", 139, 90, 43},
   {"thistle", 216, 191, 216},
   {"thistle1", 255, 225, 255},
   {"thistle2", 238, 210, 238},
   {"thistle3", 205, 181, 205},
   {"thistle4", 139, 123, 139},
   {"tomato", 255, 99, 71},
   {"tomato1", 255, 99, 71},
   {"tomato2", 238, 92, 66},
   {"tomato3", 205, 79, 57},
   {"tomato4", 139, 54, 38},
   {"turquoise", 64, 224, 208},
   {"turquoise1", 0, 245, 255},
   {"turquoise2", 0, 229, 238},
   {"turquoise3", 0, 197, 205},
   {"turquoise4", 0, 134, 139},
   {"violet", 238, 130, 238},
   {"violet red", 208, 32, 144},
   {"VioletRed", 208, 32, 144},
   {"VioletRed1", 255, 62, 150},
   {"VioletRed2", 238, 58, 140},
   {"VioletRed3", 205, 50, 120},
   {"VioletRed4", 139, 34, 82},
   {"wheat", 245, 222, 179},
   {"wheat1", 255, 231, 186},
   {"wheat2", 238, 216, 174},
   {"wheat3", 205, 186, 150},
   {"wheat4", 139, 126, 102},
   {"white", 255, 255, 255},
   {"white smoke", 245, 245, 245},
   {"WhiteSmoke", 245, 245, 245},
   {"yellow", 255, 255, 0},
   {"yellow green", 154, 205, 50},
   {"yellow1", 255, 255, 0},
   {"yellow2", 238, 238, 0},
   {"yellow3", 205, 205, 0},
   {"yellow4", 139, 139, 0},
   {"YellowGreen", 154, 205, 50}
};

#define numXColors (sizeof (xColors) / sizeof (*xColors))

/*
 *----------------------------------------------------------------------
 *
 * FindColor --
 *
 * This routine finds the color entry that corresponds to the
 * specified color.
 *
 * Results:
 * Returns non-zero on success.  The RGB values of the XColor
 * will be initialized to the proper values on success.
 *
 * Side effects:
 * None.
 *
 *----------------------------------------------------------------------
 */

static int compare_xcolor_entries(const void *a, const void *b)
{
   return strcasecmp((const char *) a, ((const XColorEntry *) b)->name);
}

static int FindColor(const char *name, GdkColor * colorPtr)
{
   XColorEntry *found;

   found = bsearch(name, xColors, numXColors, sizeof(XColorEntry),
                   compare_xcolor_entries);
   if (found == NULL)
      return 0;

   colorPtr->red = (found->red * 65535) / 255;
   colorPtr->green = (found->green * 65535) / 255;
   colorPtr->blue = (found->blue * 65535) / 255;
   return 1;
}

/*
 *----------------------------------------------------------------------
 *
 * parse_color --
 *
 * Partial implementation of X color name parsing interface.
 *
 * Results:
 * Returns non-zero on success.
 *
 * Side effects:
 * None.
 *
 *----------------------------------------------------------------------
 */

gboolean parse_color(Colormap map, const char *spec, GdkColor * colorPtr)
{
   if (spec[0] == '#') {
      char fmt[16];
      int i, red, green, blue;

      if ((i = strlen(spec + 1)) % 3) {
         return 0;
      }
      i /= 3;

      sprintf(fmt, "%%%dx%%%dx%%%dx", i, i, i);
      if (sscanf(spec + 1, fmt, &red, &green, &blue) != 3) {
         return 0;
      }
      if (i == 4) {
         colorPtr->red = red;
         colorPtr->green = green;
         colorPtr->blue = blue;
      } else if (i == 1) {
         colorPtr->red = (red * 65535) / 15;
         colorPtr->green = (green * 65535) / 15;
         colorPtr->blue = (blue * 65535) / 15;
      } else if (i == 2) {
         colorPtr->red = (red * 65535) / 255;
         colorPtr->green = (green * 65535) / 255;
         colorPtr->blue = (blue * 65535) / 255;
      } else {                  /* if (i == 3) */

         colorPtr->red = (red * 65535) / 4095;
         colorPtr->green = (green * 65535) / 4095;
         colorPtr->blue = (blue * 65535) / 4095;
      }
   } else {
      if (!FindColor(spec, colorPtr)) {
         return 0;
      }
   }
   return 1;
}

/* End of code from Tk8.0 */

static Colormap default_colormap()
{
   static Colormap colormap;

   if (colormap)
      return colormap;

   colormap = create_colormap(NULL, NULL, FALSE);
   return colormap;
}

GdkColormap *gdk_colormap_new(GdkVisual * visual, gint private_cmap)
{
   GdkColormap *colormap;
   GdkColormapPrivateWin32 *private;
   Visual *xvisual;
   int i;

   g_return_val_if_fail(visual != NULL, NULL);

   private = g_new(GdkColormapPrivateWin32, 1);
   colormap = (GdkColormap *) private;

   private->base.visual = visual;
   private->base.ref_count = 1;

   private->hash = NULL;
   private->last_sync_time = 0;
   private->info = NULL;

   xvisual = ((GdkVisualPrivate *) visual)->xvisual;

   colormap->size = visual->colormap_size;
   colormap->colors = g_new(GdkColor, colormap->size);

   switch (visual->type) {
   case GDK_VISUAL_GRAYSCALE:
   case GDK_VISUAL_PSEUDO_COLOR:
      private->info = g_new0(GdkColorInfo, colormap->size);

      private->hash = g_hash_table_new((GHashFunc) gdk_color_hash,
                                       (GCompareFunc) gdk_color_equal);

      private->private_val = private_cmap;
      private->xcolormap = create_colormap(gdk_root_window, xvisual,
                                           private_cmap);

      if (private_cmap) {
         PALETTEENTRY pal[256];
         guint npal;

         npal =
             GetPaletteEntries(private->xcolormap->palette, 0,
                               colormap->size, pal);
         for (i = 0; i < colormap->size; i++) {
            colormap->colors[i].pixel = i;
            if ((guint)i >= npal) {
               colormap->colors[i].red =
                   colormap->colors[i].green =
                   colormap->colors[i].blue = 0;
            } else {
               colormap->colors[i].red = (pal[i].peRed * 65535) / 255;
               colormap->colors[i].green = (pal[i].peGreen * 65525) / 255;
               colormap->colors[i].blue = (pal[i].peBlue * 65535) / 255;
            }
         }
         gdk_colormap_change(colormap, colormap->size);
      }
      break;

   case GDK_VISUAL_STATIC_GRAY:
   case GDK_VISUAL_STATIC_COLOR:
   case GDK_VISUAL_TRUE_COLOR:
      private->private_val = FALSE;
      private->xcolormap = create_colormap(gdk_root_window,
                                           xvisual, FALSE);
      break;
   }

   gdk_colormap_add(colormap);

   return colormap;
}

void _gdk_colormap_real_destroy(GdkColormap * colormap)
{
   GdkColormapPrivateWin32 *private = (GdkColormapPrivateWin32 *) colormap;

   g_return_if_fail(colormap != NULL);
   g_return_if_fail(private->base.ref_count == 0);

   gdk_colormap_remove(colormap);
   free_colormap(private->xcolormap);

   if (private->hash)
      g_hash_table_destroy(private->hash);

   g_free(private->info);
   g_free(colormap->colors);
   g_free(colormap);
}

#define MIN_SYNC_TIME 2

void gdk_colormap_sync(GdkColormap * colormap, gboolean force)
{
   time_t current_time;
   GdkColormapPrivateWin32 *private = (GdkColormapPrivateWin32 *) colormap;
   XColor *xpalette;
   gint nlookup;
   gint i;

   g_return_if_fail(colormap != NULL);

   current_time = time(NULL);
   if (!force
       && ((current_time - private->last_sync_time) < MIN_SYNC_TIME))
      return;

   private->last_sync_time = current_time;

   nlookup = 0;
   xpalette = g_new(XColor, colormap->size);

   nlookup = GetPaletteEntries(private->xcolormap->palette,
                               0, colormap->size, xpalette);

   for (i = 0; i < nlookup; i++) {
      colormap->colors[i].pixel = i;
      colormap->colors[i].red = (xpalette[i].peRed * 65535) / 255;
      colormap->colors[i].green = (xpalette[i].peGreen * 65535) / 255;
      colormap->colors[i].blue = (xpalette[i].peBlue * 65535) / 255;
   }

   for (; i < colormap->size; i++) {
      colormap->colors[i].pixel = i;
      colormap->colors[i].red = 0;
      colormap->colors[i].green = 0;
      colormap->colors[i].blue = 0;
   }

   g_free(xpalette);
}

GdkColormap *gdk_colormap_get_system(void)
{
   static GdkColormap *colormap = NULL;
   GdkColormapPrivateWin32 *private;

   if (!colormap) {
      private = g_new(GdkColormapPrivateWin32, 1);
      colormap = (GdkColormap *) private;

      private->xcolormap = default_colormap();
      private->base.visual = gdk_visual_get_system();
      private->private_val = FALSE;
      private->base.ref_count = 1;

      private->hash = NULL;
      private->last_sync_time = 0;
      private->info = NULL;

      colormap->colors = NULL;
      colormap->size = private->base.visual->colormap_size;

      if ((private->base.visual->type == GDK_VISUAL_GRAYSCALE) ||
          (private->base.visual->type == GDK_VISUAL_PSEUDO_COLOR)) {
         private->info = g_new0(GdkColorInfo, colormap->size);
         colormap->colors = g_new(GdkColor, colormap->size);

         private->hash = g_hash_table_new((GHashFunc) gdk_color_hash,
                                          (GCompareFunc) gdk_color_equal);

         gdk_colormap_sync(colormap, TRUE);
      }
      gdk_colormap_add(colormap);
   }

   return colormap;
}

gint gdk_colormap_get_system_size(void)
{
   gint bitspixel;

   bitspixel = GetDeviceCaps(gdk_DC, BITSPIXEL);

   if (bitspixel == 1)
      return 2;
   else if (bitspixel == 4)
      return 16;
   else if (bitspixel == 8)
      return 256;
   else if (bitspixel == 12)
      return 32;
   else if (bitspixel == 16)
      return 64;
   else                         /* if (bitspixel >= 24) */
      return 256;
}

void gdk_colormap_change(GdkColormap * colormap, gint ncolors)
{
   GdkColormapPrivateWin32 *private;
   XColor *palette;
   int i;

   g_return_if_fail(colormap != NULL);

   palette = g_new(XColor, ncolors);

   private = (GdkColormapPrivateWin32 *) colormap;
   switch (private->base.visual->type) {
   case GDK_VISUAL_GRAYSCALE:
   case GDK_VISUAL_PSEUDO_COLOR:
      for (i = 0; i < ncolors; i++) {
         palette[i].peRed = (colormap->colors[i].red >> 8);
         palette[i].peGreen = (colormap->colors[i].green >> 8);
         palette[i].peBlue = (colormap->colors[i].blue >> 8);
         palette[i].peFlags = 0;
      }

      if (SetPaletteEntries(private->xcolormap->palette,
                            0, ncolors, palette) == 0)
         WIN32_GDI_FAILED("SetPaletteEntries");
      private->xcolormap->stale = TRUE;
      break;

   default:
      break;
   }

   g_free(palette);
}

gboolean
gdk_colors_alloc(GdkColormap * colormap,
                 gint contiguous,
                 gulong * planes,
                 gint nplanes, gulong * pixels, gint npixels)
{
   GdkColormapPrivateWin32 *private;
   gint return_val;
   gint i;

   g_return_val_if_fail(colormap != NULL, 0);

   private = (GdkColormapPrivateWin32 *) colormap;

   return_val = alloc_color_cells(private->xcolormap, contiguous,
                                  planes, nplanes, pixels, npixels);

   if (return_val) {
      for (i = 0; i < npixels; i++) {
         private->info[pixels[i]].ref_count++;
         private->info[pixels[i]].flags |= GDK_COLOR_WRITEABLE;
      }
   }

   return return_val != 0;
}

gboolean gdk_color_parse(const gchar * spec, GdkColor * color)
{
   Colormap xcolormap;

   g_return_val_if_fail(spec != NULL, FALSE);
   g_return_val_if_fail(color != NULL, FALSE);

   xcolormap = default_colormap();

   return parse_color(xcolormap, spec, color);
}

/* 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)
{
   GdkColormapPrivateWin32 *private;
   gulong *pixels;
   gint npixels = 0;
   gint i;

   g_return_if_fail(colormap != NULL);
   g_return_if_fail(in_pixels != NULL);

   private = (GdkColormapPrivateWin32 *) colormap;

   if ((private->base.visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
       (private->base.visual->type != GDK_VISUAL_GRAYSCALE))
      return;

   pixels = g_new(gulong, in_npixels);

   for (i = 0; i < in_npixels; i++) {
      gulong pixel = in_pixels[i];

      if (private->info[pixel].ref_count) {
         private->info[pixel].ref_count--;

         if (private->info[pixel].ref_count == 0) {
            pixels[npixels++] = pixel;
            if (!(private->info[pixel].flags & GDK_COLOR_WRITEABLE))
               g_hash_table_remove(private->hash,
                                   &colormap->colors[pixel]);
            private->info[pixel].flags = 0;
         }
      }
   }

   if (npixels)
      free_colors(private->xcolormap, pixels, npixels, planes);

   g_free(pixels);
}

/* This is almost identical to gdk_colors_free.
 * Keep them in sync!
 */
void
gdk_colormap_free_colors(GdkColormap * colormap,
                         GdkColor * colors, gint ncolors)
{
   GdkColormapPrivateWin32 *private;
   gulong *pixels;
   gint npixels = 0;
   gint i;

   g_return_if_fail(colormap != NULL);
   g_return_if_fail(colors != NULL);

   private = (GdkColormapPrivateWin32 *) colormap;

   if ((private->base.visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
       (private->base.visual->type != GDK_VISUAL_GRAYSCALE))
      return;

   pixels = g_new(gulong, ncolors);

   for (i = 0; i < ncolors; i++) {
      gulong pixel = colors[i].pixel;

      if (private->info[pixel].ref_count) {
         private->info[pixel].ref_count--;

         if (private->info[pixel].ref_count == 0) {
            pixels[npixels++] = pixel;
            if (!(private->info[pixel].flags & GDK_COLOR_WRITEABLE))
               g_hash_table_remove(private->hash,
                                   &colormap->colors[pixel]);
            private->info[pixel].flags = 0;
         }
      }
   }
   if (npixels)
      free_colors(private->xcolormap, pixels, npixels, 0);
   g_free(pixels);
}

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

/* Try to allocate a single color using alloc_color. If it succeeds,
 * cache the result in our colormap, and store in ret.
 */
static gboolean
gdk_colormap_alloc1(GdkColormap * colormap,
                    GdkColor * color, GdkColor * ret)
{
   GdkColormapPrivateWin32 *private;
   XColor xcolor;

   private = (GdkColormapPrivateWin32 *) colormap;

   xcolor.peRed = color->red >> 8;
   xcolor.peGreen = color->green >> 8;
   xcolor.peBlue = color->blue >> 8;

   if (alloc_color(private->xcolormap, &xcolor, &ret->pixel)) {
      ret->red = (xcolor.peRed * 65535) / 255;
      ret->green = (xcolor.peGreen * 65535) / 255;
      ret->blue = (xcolor.peBlue * 65535) / 255;

      if ((guint)ret->pixel < (guint)colormap->size) {
         if (private->info[ret->pixel].ref_count) {   /* got a duplicate */
            /* XXX */
         } else {
            colormap->colors[ret->pixel] = *color;
            private->info[ret->pixel].ref_count = 1;

            g_hash_table_insert(private->hash,
                                &colormap->colors[ret->pixel],
                                &colormap->colors[ret->pixel]);
         }
      }
      return TRUE;
   } else {
      return FALSE;
   }
}

static gint
gdk_colormap_alloc_colors_writable(GdkColormap * colormap,
                                    GdkColor * colors,
                                    gint ncolors,
                                    gboolean writable,
                                    gboolean best_match,
                                    gboolean * success)
{
   GdkColormapPrivateWin32 *private;
   gulong *pixels;
   Status status;
   gint i, index;

   private = (GdkColormapPrivateWin32 *) colormap;

   if (private->private_val) {
      index = 0;
      for (i = 0; i < ncolors; i++) {
         while ((index < colormap->size)
                && (private->info[index].ref_count != 0))
            index++;

         if (index < colormap->size) {
            colors[i].pixel = index;
            success[i] = TRUE;
            private->info[index].ref_count++;
            private->info[i].flags |= GDK_COLOR_WRITEABLE;
         } else
            break;
      }
      return i;
   } else {
      pixels = g_new(gulong, ncolors);
      /* Allocation of a writable color cells */

      status = alloc_color_cells(private->xcolormap, FALSE, NULL,
                                 0, pixels, ncolors);
      if (status) {
         for (i = 0; i < ncolors; i++) {
            colors[i].pixel = pixels[i];
            private->info[pixels[i]].ref_count++;
            private->info[pixels[i]].flags |= GDK_COLOR_WRITEABLE;
         }
      }

      g_free(pixels);

      return status ? ncolors : 0;
   }
}

static gint
gdk_colormap_alloc_colors_private(GdkColormap * colormap,
                                  GdkColor * colors,
                                  gint ncolors,
                                  gboolean writable,
                                  gboolean best_match, gboolean * success)
{
   GdkColormapPrivateWin32 *private;
   gint i, index;
   XColor *store = g_new(XColor, ncolors);
   gint nstore = 0;
   gint nremaining = 0;

   private = (GdkColormapPrivateWin32 *) colormap;
   index = -1;

   /* First, store the colors we have room for */

   index = 0;
   for (i = 0; i < ncolors; i++) {
      if (!success[i]) {
         while ((index < colormap->size)
                && (private->info[index].ref_count != 0))
            index++;

         if (index < colormap->size) {
            store[nstore].peRed = colors[i].red >> 8;
            store[nstore].peBlue = colors[i].blue >> 8;
            store[nstore].peGreen = colors[i].green >> 8;
            nstore++;

            success[i] = TRUE;

            colors[i].pixel = index;
            private->info[index].ref_count++;
         } else
            nremaining++;
      }
   }

   if (SetPaletteEntries(private->xcolormap->palette,
                         0, nstore, store) == 0)
      WIN32_GDI_FAILED("SetPaletteEntries");
   private->xcolormap->stale = TRUE;

   g_free(store);

   if (nremaining > 0 && best_match) {
      /* Get best matches for remaining colors */

      gchar *available = g_new(gchar, colormap->size);
      for (i = 0; i < colormap->size; i++)
         available[i] = TRUE;

      for (i = 0; i < ncolors; i++) {
         if (!success[i]) {
            index = gdk_colormap_match_color(colormap,
                                             &colors[i], available);
            if (index != -1) {
               colors[i] = colormap->colors[index];
               private->info[index].ref_count++;

               success[i] = TRUE;
               nremaining--;
            }
         }
      }
      g_free(available);
   }

   return (ncolors - nremaining);
}

static gint
gdk_colormap_alloc_colors_shared(GdkColormap * colormap,
                                 GdkColor * colors,
                                 gint ncolors,
                                 gboolean writable,
                                 gboolean best_match, gboolean * success)
{
   GdkColormapPrivateWin32 *private;
   gint i, index;
   gint nremaining = 0;
   gint nfailed = 0;

   private = (GdkColormapPrivateWin32 *) colormap;
   index = -1;

   for (i = 0; i < ncolors; i++) {
      if (!success[i]) {
         if (gdk_colormap_alloc1(colormap, &colors[i], &colors[i]))
            success[i] = TRUE;
         else
            nremaining++;
      }
   }


   if (nremaining > 0 && best_match) {
      gchar *available = g_new(gchar, colormap->size);
      for (i = 0; i < colormap->size; i++)
         available[i] = ((private->info[i].ref_count == 0) ||
                         !(private->info[i].flags && GDK_COLOR_WRITEABLE));
      gdk_colormap_sync(colormap, FALSE);

      while (nremaining > 0) {
         for (i = 0; i < ncolors; i++) {
            if (!success[i]) {
               index =
                   gdk_colormap_match_color(colormap, &colors[i],
                                            available);
               if (index != -1) {
                  if (private->info[index].ref_count) {
                     private->info[index].ref_count++;
                     colors[i] = colormap->colors[index];
                     success[i] = TRUE;
                     nremaining--;
                  } else {
                     if (gdk_colormap_alloc1(colormap,
                                             &colormap->colors[index],
                                             &colors[i])) {
                        success[i] = TRUE;
                        nremaining--;
                        break;
                     } else {
                        available[index] = FALSE;
                     }
                  }
               } else {
                  nfailed++;
                  nremaining--;
                  success[i] = 2;   /* flag as permanent failure */
               }
            }
         }
      }
      g_free(available);
   }

   /* Change back the values we flagged as permanent failures */
   if (nfailed > 0) {
      for (i = 0; i < ncolors; i++)
         if (success[i] == 2)
            success[i] = FALSE;
      nremaining = nfailed;
   }

   return (ncolors - nremaining);
}

static gint
gdk_colormap_alloc_colors_pseudocolor(GdkColormap * colormap,
                                      GdkColor * colors,
                                      gint ncolors,
                                      gboolean writable,
                                      gboolean best_match,
                                      gboolean * success)
{
   GdkColormapPrivateWin32 *private;
   GdkColor *lookup_color;
   gint i;
   gint nremaining = 0;

   private = (GdkColormapPrivateWin32 *) colormap;

   /* Check for an exact match among previously allocated colors */

   for (i = 0; i < ncolors; i++) {
      if (!success[i]) {
         lookup_color = g_hash_table_lookup(private->hash, &colors[i]);
         if (lookup_color) {
            private->info[lookup_color->pixel].ref_count++;
            colors[i].pixel = lookup_color->pixel;
            success[i] = TRUE;
         } else
            nremaining++;
      }
   }

   /* If that failed, we try to allocate a new color, or approxmiate
    * with what we can get if best_match is TRUE.
    */
   if (nremaining > 0) {
      if (private->private_val)
         return gdk_colormap_alloc_colors_private(colormap, colors,
                                                  ncolors, writable,
                                                  best_match, success);
      else
         return gdk_colormap_alloc_colors_shared(colormap, colors, ncolors,
                                                 writable, best_match,
                                                 success);
   } else
      return 0;
}

gint
gdk_colormap_alloc_colors(GdkColormap * colormap,
                          GdkColor * colors,
                          gint ncolors,
                          gboolean writable,
                          gboolean best_match, gboolean * success)
{
   GdkColormapPrivateWin32 *private;
   GdkVisual *visual;
   gint i;
   gint nremaining = 0;
   XColor xcolor;

   g_return_val_if_fail(colormap != NULL, FALSE);
   g_return_val_if_fail(colors != NULL, FALSE);

   private = (GdkColormapPrivateWin32 *) colormap;

   for (i = 0; i < ncolors; i++) {
      success[i] = FALSE;
   }

   switch (private->base.visual->type) {
   case GDK_VISUAL_PSEUDO_COLOR:
   case GDK_VISUAL_GRAYSCALE:
      if (writable)
         return gdk_colormap_alloc_colors_writable(colormap, colors,
                                                    ncolors, writable,
                                                    best_match, success);
      else
         return gdk_colormap_alloc_colors_pseudocolor(colormap, colors,
                                                      ncolors, writable,
                                                      best_match, success);
      break;

   case GDK_VISUAL_TRUE_COLOR:
      visual = private->base.visual;

      for (i = 0; i < ncolors; i++) {
         colors[i].pixel =
             (((colors[i].red >> (16 - visual->red_prec)) << visual->
               red_shift) +
              ((colors[i].green >> (16 - visual->green_prec)) << visual->
               green_shift) +
              ((colors[i].blue >> (16 - visual->blue_prec)) << visual->
               blue_shift));
         success[i] = TRUE;
      }
      break;

   case GDK_VISUAL_STATIC_GRAY:
   case GDK_VISUAL_STATIC_COLOR:
      for (i = 0; i < ncolors; i++) {
         xcolor.peRed = colors[i].red >> 8;
         xcolor.peGreen = colors[i].green >> 8;
         xcolor.peBlue = colors[i].blue >> 8;
         if (alloc_color(private->xcolormap, &xcolor, &colors[i].pixel))
            success[i] = TRUE;
         else
            nremaining++;
      }
      break;
   }
   return nremaining;
}

gboolean gdk_color_change(GdkColormap * colormap, GdkColor * color)
{
   GdkColormapPrivateWin32 *private;
   XColor xcolor;

   g_return_val_if_fail(colormap != NULL, FALSE);
   g_return_val_if_fail(color != NULL, FALSE);

   private = (GdkColormapPrivateWin32 *) colormap;

   xcolor.peRed = color->red >> 8;
   xcolor.peGreen = color->green >> 8;
   xcolor.peBlue = color->blue >> 8;

   if (SetPaletteEntries(private->xcolormap->palette,
                         color->pixel, 1, &xcolor) == 0)
      WIN32_GDI_FAILED("SetPaletteEntries");
   private->xcolormap->stale = TRUE;

   return TRUE;
}

static gint
gdk_colormap_match_color(GdkColormap * cmap,
                         GdkColor * color, const gchar * available)
{
   GdkColor *colors;
   guint sum, max;
   gint rdiff, gdiff, bdiff;
   gint i, index;

   g_return_val_if_fail(cmap != NULL, 0);
   g_return_val_if_fail(color != NULL, 0);

   colors = cmap->colors;
   max = 3 * (65536);
   index = -1;

   for (i = 0; i < cmap->size; i++) {
      if ((!available) || (available && available[i])) {
         rdiff = (color->red - colors[i].red);
         gdiff = (color->green - colors[i].green);
         bdiff = (color->blue - colors[i].blue);

         sum = ABS(rdiff) + ABS(gdiff) + ABS(bdiff);

         if (sum < max) {
            index = i;
            max = sum;
         }
      }
   }

   return index;
}

GdkColormap *gdk_colormap_lookup(Colormap xcolormap)
{
   GdkColormap *cmap;

   if (!colormap_hash)
      return NULL;

   cmap = g_hash_table_lookup(colormap_hash, &xcolormap);
   return cmap;
}

static void gdk_colormap_add(GdkColormap * cmap)
{
   GdkColormapPrivateWin32 *private;

   if (!colormap_hash)
      colormap_hash = g_hash_table_new((GHashFunc) gdk_colormap_hash,
                                       (GCompareFunc) gdk_colormap_cmp);

   private = (GdkColormapPrivateWin32 *) cmap;

   g_hash_table_insert(colormap_hash, &private->xcolormap, cmap);
}

static void gdk_colormap_remove(GdkColormap * cmap)
{
   GdkColormapPrivateWin32 *private;

   if (!colormap_hash)
      colormap_hash = g_hash_table_new((GHashFunc) gdk_colormap_hash,
                                       (GCompareFunc) gdk_colormap_cmp);

   private = (GdkColormapPrivateWin32 *) cmap;

   g_hash_table_remove(colormap_hash, &private->xcolormap);
}

static guint gdk_colormap_hash(Colormap * cmap)
{
   return (guint) * cmap;
}

static gint gdk_colormap_cmp(Colormap * a, Colormap * b)
{
   return (*a == *b);
}

#ifdef G_ENABLE_DEBUG

gchar *gdk_win32_color_to_string(const GdkColor * color)
{
   static char buf[100];

   sprintf(buf, "(%.04x,%.04x,%.04x):%.06x",
           color->red, color->green, color->blue, color->pixel);

   return buf;
}

#endif