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gecko-dev/lib/xp/xp_rgb.c

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/* *
*
*
* xp_rgb.c --- parsing color names to RGB triplets.
*
* Created: John Giannandrea <jg@netscape.com>, 28-Sep-95
*/
#ifdef GROSS_DEBUG
#include <stdio.h>
#include <string.h>
typedef unsigned char uint8;
typedef int int32;
typedef int intn;
#define XP_STRCASECMP strcasecmp
#else
#include "xp_rgb.h"
#endif
static struct {
uint8 r;
uint8 g;
uint8 b;
char *name;
} xp_rgb_table[] = {
{240, 248, 255, "aliceblue" },
{250, 235, 215, "antiquewhite" },
{ 0, 255, 255, "aqua" },
{127, 255, 212, "aquamarine" },
{240, 255, 255, "azure" },
{245, 245, 220, "beige" },
{255, 228, 196, "bisque" },
{ 0, 0, 0, "black" },
{255, 235, 205, "blanchedalmond" },
{ 0, 0, 255, "blue" },
{138, 43, 226, "blueviolet" },
{165, 42, 42, "brown" },
{222, 184, 135, "burlywood" },
{ 95, 158, 160, "cadetblue" },
{127, 255, 0, "chartreuse" },
{210, 105, 30, "chocolate" },
{255, 127, 80, "coral" },
{100, 149, 237, "cornflowerblue" },
{255, 248, 220, "cornsilk" },
{220, 20, 60, "crimson" },
{ 0, 255, 255, "cyan" },
{ 0, 0, 139, "darkblue" },
{ 0, 139, 139, "darkcyan" },
{184, 134, 11, "darkgoldenrod" },
{169, 169, 169, "darkgray" },
{ 0, 100, 0, "darkgreen" },
{189, 183, 107, "darkkhaki" },
{139, 0, 139, "darkmagenta" },
{ 85, 107, 47, "darkolivegreen" },
{255, 140, 0, "darkorange" },
{153, 50, 204, "darkorchid" },
{139, 0, 0, "darkred" },
{233, 150, 122, "darksalmon" },
{143, 188, 143, "darkseagreen" },
{ 72, 61, 139, "darkslateblue" },
{ 47, 79, 79, "darkslategray" },
{ 0, 206, 209, "darkturquoise" },
{148, 0, 211, "darkviolet" },
{255, 20, 147, "deeppink" },
{ 0, 191, 255, "deepskyblue" },
{105, 105, 105, "dimgray" },
{ 30, 144, 255, "dodgerblue" },
{178, 34, 34, "firebrick" },
{255, 250, 240, "floralwhite" },
{ 34, 139, 34, "forestgreen" },
{255, 0, 255, "fuchsia" },
{220, 220, 220, "gainsboro" },
{248, 248, 255, "ghostwhite" },
{255, 215, 0, "gold" },
{218, 165, 32, "goldenrod" },
{128, 128, 128, "gray" },
{ 0, 128, 0, "green" },
{173, 255, 47, "greenyellow" },
{240, 255, 240, "honeydew" },
{255, 105, 180, "hotpink" },
{205, 92, 92, "indianred" },
{ 75, 0, 130, "indigo" },
{255, 255, 240, "ivory" },
{240, 230, 140, "khaki" },
{230, 230, 250, "lavender" },
{255, 240, 245, "lavenderblush" },
{124, 252, 0, "lawngreen" },
{255, 250, 205, "lemonchiffon" },
{173, 216, 230, "lightblue" },
{240, 128, 128, "lightcoral" },
{224, 255, 255, "lightcyan" },
{250, 250, 210, "lightgoldenrodyellow" },
{144, 238, 144, "lightgreen" },
{211, 211, 211, "lightgrey" },
{255, 182, 193, "lightpink" },
{255, 160, 122, "lightsalmon" },
{ 32, 178, 170, "lightseagreen" },
{135, 206, 250, "lightskyblue" },
{119, 136, 153, "lightslategray" },
{176, 196, 222, "lightsteelblue" },
{255, 255, 224, "lightyellow" },
{ 0, 255, 0, "lime" },
{ 50, 205, 50, "limegreen" },
{250, 240, 230, "linen" },
{255, 0, 255, "magenta" },
{128, 0, 0, "maroon" },
{102, 205, 170, "mediumaquamarine" },
{ 0, 0, 205, "mediumblue" },
{186, 85, 211, "mediumorchid" },
{147, 112, 219, "mediumpurple" },
{ 60, 179, 113, "mediumseagreen" },
{123, 104, 238, "mediumslateblue" },
{ 0, 250, 154, "mediumspringgreen" },
{ 72, 209, 204, "mediumturquoise" },
{199, 21, 133, "mediumvioletred" },
{ 25, 25, 112, "midnightblue" },
{245, 255, 250, "mintcream" },
{255, 228, 225, "mistyrose" },
{255, 228, 181, "moccasin" },
{255, 222, 173, "navajowhite" },
{ 0, 0, 128, "navy" },
{253, 245, 230, "oldlace" },
{128, 128, 0, "olive" },
{107, 142, 35, "olivedrab" },
{255, 165, 0, "orange" },
{255, 69, 0, "orangered" },
{218, 112, 214, "orchid" },
{238, 232, 170, "palegoldenrod" },
{152, 251, 152, "palegreen" },
{175, 238, 238, "paleturquoise" },
{219, 112, 147, "palevioletred" },
{255, 239, 213, "papayawhip" },
{255, 218, 185, "peachpuff" },
{205, 133, 63, "peru" },
{255, 192, 203, "pink" },
{221, 160, 221, "plum" },
{176, 224, 230, "powderblue" },
{128, 0, 128, "purple" },
{255, 0, 0, "red" },
{188, 143, 143, "rosybrown" },
{ 65, 105, 225, "royalblue" },
{139, 69, 19, "saddlebrown" },
{250, 128, 114, "salmon" },
{244, 164, 96, "sandybrown" },
{ 46, 139, 87, "seagreen" },
{255, 245, 238, "seashell" },
{160, 82, 45, "sienna" },
{192, 192, 192, "silver" },
{135, 206, 235, "skyblue" },
{106, 90, 205, "slateblue" },
{112, 128, 144, "slategray" },
{255, 250, 250, "snow" },
{ 0, 255, 127, "springgreen" },
{ 70, 130, 180, "steelblue" },
{210, 180, 140, "tan" },
{ 0, 128, 128, "teal" },
{216, 191, 216, "thistle" },
{255, 99, 71, "tomato" },
{ 64, 224, 208, "turquoise" },
{238, 130, 238, "violet" },
{245, 222, 179, "wheat" },
{255, 255, 255, "white" },
{245, 245, 245, "whitesmoke" },
{255, 255, 0, "yellow" },
{154, 205, 50, "yellowgreen" },
};
#define TABLESIZE ((sizeof xp_rgb_table) / (sizeof xp_rgb_table[0]))
intn XP_ColorNameToRGB(char *name, uint8 *r, uint8 *g, uint8 *b)
{
int comp, low, mid, high;
if (name == NULL)
{
return 1;
}
low = 0;
high = TABLESIZE - 1;
/*
** Binary search, starting at zero, which is slightly less
** efficient, but makes the exit condition simple.
*/
mid = 0;
for (;;)
{
if(!(comp = XP_STRCASECMP(name, xp_rgb_table[mid].name)))
{
#ifdef GROSS_DEBUG
if (mid < 0 || mid >= TABLESIZE) {
printf("Found %s out of range\n", name);
return 1;
}
#endif
*r = xp_rgb_table[mid].r;
*g = xp_rgb_table[mid].g;
*b = xp_rgb_table[mid].b;
return 0;
}
if ((high - low) <= 1)
return 1;
if(comp>0)
low = mid;
else
high = mid;
mid = low + (high-low+1)/2;
}
/* NOTREACHED */
return 1;
}
#ifdef GROSS_DEBUG
/*
** This is stupid, but this is the second release where the non-function of
** a simple binary search has turned out to be a bug, and I am tired of it.
** Compile and run this file with -DGROSS_DEBUG, if it generates no output then
** the routine is probably ok.
**
** The truly paranoid should re-run this test any time they change the
** xp_rgb_table array.
**/
main()
{
uint8 r, g, b;
int i;
for (i = 0; i < TABLESIZE; i++) {
char color[200];
if (XP_ColorNameToRGB(xp_rgb_table[i].name, &r, &g, &b) != 0)
printf("Couldn't find %s @ %d of %d\n", xp_rgb_table[i].name, i, TABLESIZE);
/*
** test to see if we loop infintely between the cracks
*/
strcpy(color, xp_rgb_table[i].name);
strcat(color, "Z");
if (XP_ColorNameToRGB(color, &r, &g, &b) == 0)
printf("Souldn't't find %s @ %d of %d\n", color, i, TABLESIZE);
strcpy(color, xp_rgb_table[i].name);
color[strlen(color)-1]--;
if (XP_ColorNameToRGB(color, &r, &g, &b) == 0)
printf("Souldn't't find %s @ %d of %d\n", color, i, TABLESIZE);
}
/*
** test the beginning on the end
*/
if (XP_ColorNameToRGB("\001", &r, &g, &b) == 0)
printf("Mistakenly found early string\n");
if (XP_ColorNameToRGB("\177", &r, &g, &b) == 0)
printf("Mistakenly found late string\n");
}
#endif
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