Curtis Hard
738 lines
25 KiB
Objective-C
738 lines
25 KiB
Objective-C
//
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// IJSVGColor.m
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// IconJar
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//
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// Created by Curtis Hard on 31/08/2014.
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// Copyright (c) 2014 Curtis Hard. All rights reserved.
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//
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#import "IJSVGColor.h"
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#import "IJSVGUtils.h"
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@implementation IJSVGColor
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static NSDictionary * _colorTree = nil;
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CGFloat * IJSVGColorCSSHSLToHSB(CGFloat hue, CGFloat saturation, CGFloat lightness)
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{
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hue *= (1.f/360.f);
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hue = (hue - floorf(hue));
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saturation *= 0.01;
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lightness *= 0.01;
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lightness *= 2.f;
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CGFloat s = saturation * ((lightness < 1.f) ? lightness : (2.f - lightness));
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CGFloat brightness = (lightness + s) * .5f;
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if(s != 0.f) {
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s = (2.f * s) / (lightness + s);
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}
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CGFloat * floats = (CGFloat *)malloc(3*sizeof(CGFloat));
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floats[0] = hue;
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floats[1] = s;
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floats[2] = brightness;
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return floats;
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};
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+ (void)load
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{
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[self.class _generateTree];
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}
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+ (NSColorSpace *)defaultColorSpace
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{
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return NSColorSpace.deviceRGBColorSpace;
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}
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+ (NSColor *)computeColorSpace:(NSColor *)color
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{
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NSColorSpace * space = [self defaultColorSpace];
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if(color.colorSpace != space) {
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color = [color colorUsingColorSpace:space];
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}
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return color;
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}
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+ (void)_generateTree
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{
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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_colorTree = [@{
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@"aliceblue":@(0xf0f8ff),
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@"antiquewhite":@(0xfaebd7),
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@"aqua":@(0x00ffff),
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@"aquamarine":@(0x7fffd4),
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@"azure":@(0xf0ffff),
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@"beige":@(0xf5f5dc),
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@"bisque":@(0xffe4c4),
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@"black":@(0x000000),
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@"blanchedalmond":@(0xffebcd),
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@"blue":@(0x0000ff),
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@"blueviolet":@(0x8a2be2),
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@"brown":@(0xa52a2a),
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@"burlywood":@(0xdeb887),
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@"cadetblue":@(0x5f9ea0),
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@"chartreuse":@(0x7fff00),
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@"chocolate":@(0xd2691e),
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@"coral":@(0xff7f50),
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@"cornflowerblue":@(0x6495ed),
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@"cornsilk":@(0xfff8dc),
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@"crimson":@(0xdc143c),
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@"currentcolor":@(0x000000),
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@"cyan":@(0x00ffff),
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@"darkblue":@(0x00008b),
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@"darkcyan":@(0x008b8b),
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@"darkgoldenrod":@(0xb8860b),
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@"darkgray":@(0xa9a9a9),
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@"darkgreen":@(0x006400),
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@"darkgrey":@(0xa9a9a9),
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@"darkkhaki":@(0xbdb76b),
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@"darkmagenta":@(0x8b008b),
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@"darkolivegreen":@(0x556b2f),
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@"darkorange":@(0xff8c00),
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@"darkorchid":@(0x9932cc),
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@"darkred":@(0x8b0000),
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@"darksalmon":@(0xe9967a),
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@"darkseagreen":@(0x8fbc8f),
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@"darkslateblue":@(0x483d8b),
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@"darkslategray":@(0x2f4f4f),
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@"darkturquoise":@(0x00ced1),
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@"darkviolet":@(0x9400d3),
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@"deeppink":@(0xff1493),
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@"deepskyblue":@(0x00bfff),
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@"dimgray":@(0x696969),
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@"dimgrey":@(0x696969),
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@"dodgerblue":@(0x1e90ff),
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@"firebrick":@(0xb22222),
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@"floralwhite":@(0xfffaf0),
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@"forestgreen":@(0x228b22),
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@"fuchsia":@(0xff00ff),
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@"gainsboro":@(0xdcdcdc),
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@"ghostwhite":@(0xf8f8ff),
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@"gold":@(0xffd700),
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@"goldenrod":@(0xdaa520),
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@"gray":@(0x808080),
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@"green":@(0x008000),
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@"greenyellow":@(0xadff2f),
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@"grey":@(0x808080),
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@"honeydew":@(0xf0fff0),
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@"hotpink":@(0xff69b4),
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@"indianred":@(0xcd5c5c),
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@"indigo":@(0x4b0082),
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@"ivory":@(0xfffff0),
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@"khaki":@(0xf0e68c),
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@"lavender":@(0xe6e6fa),
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@"lavenderblush":@(0xfff0f5),
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@"lawngreen":@(0x7cfc00),
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@"lemonchiffon":@(0xfffacd),
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@"lightblue":@(0xadd8e6),
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@"lightcoral":@(0xf08080),
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@"lightcyan":@(0xe0ffff),
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@"lightgoldenrodyellow":@(0xfafad2),
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@"lightgray":@(0xd3d3d3),
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@"lightgreen":@(0x90ee90),
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@"lightgrey":@(0xd3d3d3),
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@"lightpink":@(0xffb6c1),
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@"lightsalmon":@(0xffa07a),
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@"lightseagreen":@(0x20b2aa),
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@"lightskyblue":@(0x87cefa),
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@"lightslategray":@(0x778899),
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@"lightsteelblue":@(0xb0c4de),
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@"lightyellow":@(0xffffe0),
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@"lime":@(0x00ff00),
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@"limegreen":@(0x32cd32),
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@"linen":@(0xfaf0e6),
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@"magenta":@(0xff00ff),
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@"maroon":@(0x800000),
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@"mediumaquamarine":@(0x66cdaa),
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@"mediumblue":@(0x0000cd),
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@"mediumorchid":@(0xba55d3),
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@"mediumpurple":@(0x9370db),
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@"mediumseagreen":@(0x3cb371),
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@"mediumslateblue":@(0x7b68ee),
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@"mediumspringgreen":@(0x00fa9a),
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@"mediumturquoise":@(0x48d1cc),
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@"mediumvioletred":@(0xc71585),
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@"midnightblue":@(0x191970),
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@"mintcream":@(0xf5fffa),
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@"mistyrose":@(0xffe4e1),
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@"moccasin":@(0xffe4b5),
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@"navajowhite":@(0xffdead),
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@"navy":@(0x000080),
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@"oldlace":@(0xfdf5e6),
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@"olive":@(0x808000),
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@"olivedrab":@(0x6b8e23),
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@"orange":@(0xffa500),
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@"orangered":@(0xff4500),
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@"orchid":@(0xda70d6),
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@"palegoldenrod":@(0xeee8aa),
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@"palegreen":@(0x98fb98),
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@"paleturquoise":@(0xafeeee),
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@"palevioletred":@(0xdb7093),
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@"papayawhip":@(0xffefd5),
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@"peachpuff":@(0xffdab9),
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@"peru":@(0xcd853f),
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@"pink":@(0xffc0cb),
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@"plum":@(0xdda0dd),
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@"powderblue":@(0xb0e0e6),
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@"purple":@(0x800080),
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@"red":@(0xff0000),
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@"rosybrown":@(0xbc8f8f),
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@"royalblue":@(0x4169e1),
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@"saddlebrown":@(0x8b4513),
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@"salmon":@(0xfa8072),
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@"sandybrown":@(0xf4a460),
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@"seagreen":@(0x2e8b57),
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@"seashell":@(0xfff5ee),
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@"sienna":@(0xa0522d),
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@"silver":@(0xc0c0c0),
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@"skyblue":@(0x87ceeb),
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@"slateblue":@(0x6a5acd),
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@"slategrey":@(0x708090),
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@"snow":@(0xfffafa),
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@"springgreen":@(0x00ff7f),
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@"steelblue":@(0x4682b4),
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@"tan":@(0xd2b48c),
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@"teal":@(0x008080),
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@"thistle":@(0xd8bfd8),
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@"tomato":@(0xff6347),
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@"turquoise":@(0x40e0d0),
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@"violet":@(0xee82ee),
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@"wheat":@(0xf5deb3),
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@"white":@(0xffffff),
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@"whitesmoke":@(0xf5f5f5),
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@"yellow":@(0xffff00),
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@"yellowgreen":@(0x9acd32)
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} retain];
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});
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}
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+ (NSColor *)computeColor:(id)colour
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{
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if( [colour isKindOfClass:[NSColor class]] )
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return colour;
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return nil;
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}
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+ (NSColor *)colorFromRString:(NSString *)rString
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gString:(NSString *)gString
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bString:(NSString *)bString
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aString:(NSString *)aString
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{
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return [self colorFromRUnit:[IJSVGUnitLength unitWithString:rString]
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gUnit:[IJSVGUnitLength unitWithString:gString]
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bUnit:[IJSVGUnitLength unitWithString:bString]
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aUnit:[IJSVGUnitLength unitWithString:aString]];
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}
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+ (NSColor *)colorFromRUnit:(IJSVGUnitLength *)rUnit
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gUnit:(IJSVGUnitLength *)gUnit
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bUnit:(IJSVGUnitLength *)bUnit
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aUnit:(IJSVGUnitLength *)aUnit
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{
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CGFloat r = rUnit.type == IJSVGUnitLengthTypePercentage ?
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[rUnit computeValue:255.f] : [rUnit computeValue:1.f];
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CGFloat g = gUnit.type == IJSVGUnitLengthTypePercentage ?
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[gUnit computeValue:255.f] : [gUnit computeValue:1.f];
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CGFloat b = bUnit.type == IJSVGUnitLengthTypePercentage ?
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[bUnit computeValue:255.f] : [bUnit computeValue:1.f];
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CGFloat a = [aUnit computeValue:100.f];
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return [self computeColorSpace:[NSColor colorWithDeviceRed:(r/255.f)
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green:(g/255.f)
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blue:(b/255.f)
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alpha:a]];
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}
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+ (NSColor *)colorFromString:(NSString *)string
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{
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NSCharacterSet * set = NSCharacterSet.whitespaceAndNewlineCharacterSet;
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string = [string stringByTrimmingCharactersInSet:set];
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if( [string length] < 3 ) {
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return nil;
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}
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NSColor * color = nil;
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string = [string lowercaseString];
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if([self.class isHex:string] == NO) {
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color = [self.class colorFromPredefinedColorName:string];
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if( color != nil ) {
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return color;
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}
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}
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// is simply a clear color, dont fill
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if( [[string lowercaseString] isEqualToString:@"none"] ) {
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return [self computeColorSpace:NSColor.clearColor];
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}
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// is it RGB?
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if( [[string substringToIndex:3] isEqualToString:@"rgb"] ) {
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NSRange range = [IJSVGUtils rangeOfParentheses:string];
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NSString * rgbString = [string substringWithRange:range];
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NSArray * parts = [rgbString componentsSeparatedByChars:","];
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NSString * alpha = @"100%";
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if(parts.count == 4) {
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alpha = parts[3];
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}
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return [self colorFromRString:parts[0]
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gString:parts[1]
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bString:parts[2]
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aString:alpha];
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}
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// is it HSL?
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if([[string substringToIndex:3] isEqualToString:@"hsl"]) {
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NSInteger count = 0;
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CGFloat * params = [IJSVGUtils commandParameters:string
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count:&count];
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CGFloat alpha = 1;
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if(count == 4) {
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alpha = params[3];
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}
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// convert HSL to HSB
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CGFloat * hsb = IJSVGColorCSSHSLToHSB(params[0], params[1], params[2]);
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color = [NSColor colorWithDeviceHue:hsb[0]
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saturation:hsb[1]
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brightness:hsb[2]
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alpha:alpha];
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color = [self computeColorSpace:color];
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// memory clean!
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free(hsb);
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free(params);
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return color;
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}
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color = [self.class colorFromHEXString:string alpha:1.f];
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return color;
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}
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+ (NSColor *)colorFromPredefinedColorName:(NSString *)name
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{
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NSNumber * hex = nil;
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name = [name.lowercaseString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
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if((hex = _colorTree[name]) == nil ) {
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return nil;
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}
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return [self.class colorFromHEXInteger:hex.integerValue];
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}
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+ (NSString *)colorStringFromColor:(NSColor *)color
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{
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return [self colorStringFromColor:color
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forceHex:NO
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allowShorthand:YES];
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}
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+ (NSString *)colorStringFromColor:(NSColor *)color
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forceHex:(BOOL)forceHex
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allowShorthand:(BOOL)allowShorthand
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{
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// convert to RGB
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color = [self computeColorSpace:color];
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int red = color.redComponent * 0xFF;
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int green = color.greenComponent * 0xFF;
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int blue = color.blueComponent * 0xFF;
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int alpha = (int)(color.alphaComponent*100);
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// jsut return none
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if(alpha == 0 && forceHex == NO) {
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return @"none";
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}
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// always return hex unless criteria is met
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if(forceHex || alpha == 100 ||
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(red == 0 && green == 0 && blue == 0 && alpha == 0) ||
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(red == 255 && green == 255 && blue == 255 && alpha == 100)) {
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if(allowShorthand == YES) {
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NSString * r = [NSString stringWithFormat:@"%02X",red];
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NSString * g = [NSString stringWithFormat:@"%02X",green];
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NSString * b = [NSString stringWithFormat:@"%02X",blue];
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if([r characterAtIndex:0] == [r characterAtIndex:1] &&
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[g characterAtIndex:0] == [g characterAtIndex:1] &&
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[b characterAtIndex:0] == [b characterAtIndex:1]) {
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return [NSString stringWithFormat:@"#%c%c%c",[r characterAtIndex:0],
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[g characterAtIndex:0],[b characterAtIndex:0]];
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}
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}
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return [NSString stringWithFormat:@"#%02X%02X%02X",red,green,blue];
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}
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// note the %g, CSS alpha is 0 to 1, not 0 - 100, my bad!
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return [NSString stringWithFormat:@"rgba(%d,%d,%d,%g)",red, green, blue,
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((float)alpha/100.f)];
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}
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+ (NSString *)colorNameFromPredefinedColor:(IJSVGPredefinedColor)color
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{
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switch(color)
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{
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case IJSVGColorAliceblue:
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return @"aliceblue";
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case IJSVGColorAntiquewhite:
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return @"antiquewhite";
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case IJSVGColorAqua:
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return @"aqua";
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case IJSVGColorAquamarine:
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return @"aquamarine";
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case IJSVGColorAzure:
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return @"azure";
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case IJSVGColorBeige:
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return @"beige";
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case IJSVGColorBisque:
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return @"bisque";
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case IJSVGColorBlack:
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return @"black";
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case IJSVGColorBlanchedalmond:
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return @"blanchedalmond";
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case IJSVGColorBlue:
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return @"blue";
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case IJSVGColorBlueviolet:
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return @"blueviolet";
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case IJSVGColorBrown:
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return @"brown";
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case IJSVGColorBurlywood:
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return @"burlywood";
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case IJSVGColorCadetblue:
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return @"cadetblue";
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case IJSVGColorChartreuse:
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return @"chartreuse";
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case IJSVGColorChocolate:
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return @"chocolate";
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case IJSVGColorCoral:
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return @"coral";
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case IJSVGColorCornflowerblue:
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return @"cornflowerblue";
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case IJSVGColorCornsilk:
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return @"cornsilk";
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case IJSVGColorCrimson:
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return @"crimson";
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case IJSVGColorCyan:
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return @"cyan";
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case IJSVGColorDarkblue:
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return @"darkblue";
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case IJSVGColorDarkcyan:
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return @"darkcyan";
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case IJSVGColorDarkgoldenrod:
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return @"darkgoldenrod";
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case IJSVGColorDarkgray:
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return @"darkgray";
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case IJSVGColorDarkgreen:
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return @"darkgreen";
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case IJSVGColorDarkgrey:
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return @"darkgrey";
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case IJSVGColorDarkkhaki:
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return @"darkkhaki";
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case IJSVGColorDarkmagenta:
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return @"darkmagenta";
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case IJSVGColorDarkolivegreen:
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return @"darkolivegreen";
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case IJSVGColorDarkorange:
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return @"darkorange";
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case IJSVGColorDarkorchid:
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return @"darkorchid";
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case IJSVGColorDarkred:
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return @"darkred";
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case IJSVGColorDarksalmon:
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return @"darksalmon";
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case IJSVGColorDarkseagreen:
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return @"darkseagreen";
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case IJSVGColorDarkslateblue:
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return @"darkslateblue";
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case IJSVGColorDarkslategray:
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return @"darkslategray";
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case IJSVGColorDarkslategrey:
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return @"darkslategrey";
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case IJSVGColorDarkturquoise:
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return @"darkturquoise";
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case IJSVGColorDarkviolet:
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return @"darkviolet";
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case IJSVGColorDeeppink:
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return @"deeppink";
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case IJSVGColorDeepskyblue:
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return @"deepskyblue";
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case IJSVGColorDimgray:
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return @"dimgray";
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case IJSVGColorDimgrey:
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return @"dimgrey";
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case IJSVGColorDodgerblue:
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return @"dodgerblue";
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case IJSVGColorFirebrick:
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return @"firebrick";
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case IJSVGColorFloralwhite:
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return @"floralwhite";
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case IJSVGColorForestgreen:
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return @"forestgreen";
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case IJSVGColorFuchsia:
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return @"fuchsia";
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case IJSVGColorGainsboro:
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return @"gainsboro";
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case IJSVGColorGhostwhite:
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return @"ghostwhite";
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case IJSVGColorGold:
|
|
return @"gold";
|
|
case IJSVGColorGoldenrod:
|
|
return @"goldenrod";
|
|
case IJSVGColorGray:
|
|
return @"gray";
|
|
case IJSVGColorGreen:
|
|
return @"green";
|
|
case IJSVGColorGreenyellow:
|
|
return @"greenyellow";
|
|
case IJSVGColorGrey:
|
|
return @"grey";
|
|
case IJSVGColorHoneydew:
|
|
return @"honeydew";
|
|
case IJSVGColorHotpink:
|
|
return @"hotpink";
|
|
case IJSVGColorIndianred:
|
|
return @"indianred";
|
|
case IJSVGColorIndigo:
|
|
return @"indigo";
|
|
case IJSVGColorIvory:
|
|
return @"ivory";
|
|
case IJSVGColorKhaki:
|
|
return @"khaki";
|
|
case IJSVGColorLavender:
|
|
return @"lavender";
|
|
case IJSVGColorLavenderblush:
|
|
return @"lavenderblush";
|
|
case IJSVGColorLawngreen:
|
|
return @"lawngreen";
|
|
case IJSVGColorLemonchiffon:
|
|
return @"lemonchiffon";
|
|
case IJSVGColorLightblue:
|
|
return @"lightblue";
|
|
case IJSVGColorLightcoral:
|
|
return @"lightcoral";
|
|
case IJSVGColorLightcyan:
|
|
return @"lightcyan";
|
|
case IJSVGColorLightgoldenrodyellow:
|
|
return @"lightgoldenrodyellow";
|
|
case IJSVGColorLightgray:
|
|
return @"lightgray";
|
|
case IJSVGColorLightgreen:
|
|
return @"lightgreen";
|
|
case IJSVGColorLightgrey:
|
|
return @"lightgrey";
|
|
case IJSVGColorLightpink:
|
|
return @"lightpink";
|
|
case IJSVGColorLightsalmon:
|
|
return @"lightsalmon";
|
|
case IJSVGColorLightseagreen:
|
|
return @"lightseagreen";
|
|
case IJSVGColorLightskyblue:
|
|
return @"lightskyblue";
|
|
case IJSVGColorLightslategray:
|
|
return @"lightslategray";
|
|
case IJSVGColorLightslategrey:
|
|
return @"lightslategrey";
|
|
case IJSVGColorLightsteelblue:
|
|
return @"lightsteelblue";
|
|
case IJSVGColorLightyellow:
|
|
return @"lightyellow";
|
|
case IJSVGColorLime:
|
|
return @"lime";
|
|
case IJSVGColorLimegreen:
|
|
return @"limegreen";
|
|
case IJSVGColorLinen:
|
|
return @"linen";
|
|
case IJSVGColorMagenta:
|
|
return @"magenta";
|
|
case IJSVGColorMaroon:
|
|
return @"maroon";
|
|
case IJSVGColorMediumaquamarine:
|
|
return @"mediumaquamarine";
|
|
case IJSVGColorMediumblue:
|
|
return @"mediumblue";
|
|
case IJSVGColorMediumorchid:
|
|
return @"mediumorchid";
|
|
case IJSVGColorMediumpurple:
|
|
return @"mediumpurple";
|
|
case IJSVGColorMediumseagreen:
|
|
return @"mediumseagreen";
|
|
case IJSVGColorMediumslateblue:
|
|
return @"mediumslateblue";
|
|
case IJSVGColorMediumspringgreen:
|
|
return @"mediumspringgreen";
|
|
case IJSVGColorMediumturquoise:
|
|
return @"mediumturquoise";
|
|
case IJSVGColorMediumvioletred:
|
|
return @"mediumvioletred";
|
|
case IJSVGColorMidnightblue:
|
|
return @"midnightblue";
|
|
case IJSVGColorMintcream:
|
|
return @"mintcream";
|
|
case IJSVGColorMistyrose:
|
|
return @"mistyrose";
|
|
case IJSVGColorMoccasin:
|
|
return @"moccasin";
|
|
case IJSVGColorNavajowhite:
|
|
return @"navajowhite";
|
|
case IJSVGColorNavy:
|
|
return @"navy";
|
|
case IJSVGColorOldlace:
|
|
return @"oldlace";
|
|
case IJSVGColorOlive:
|
|
return @"olive";
|
|
case IJSVGColorOlivedrab:
|
|
return @"olivedrab";
|
|
case IJSVGColorOrange:
|
|
return @"orange";
|
|
case IJSVGColorOrangered:
|
|
return @"orangered";
|
|
case IJSVGColorOrchid:
|
|
return @"orchid";
|
|
case IJSVGColorPalegoldenrod:
|
|
return @"palegoldenrod";
|
|
case IJSVGColorPalegreen:
|
|
return @"palegreen";
|
|
case IJSVGColorPaleturquoise:
|
|
return @"paleturquoise";
|
|
case IJSVGColorPalevioletred:
|
|
return @"palevioletred";
|
|
case IJSVGColorPapayawhip:
|
|
return @"papayawhip";
|
|
case IJSVGColorPeachpuff:
|
|
return @"peachpuff";
|
|
case IJSVGColorPeru:
|
|
return @"peru";
|
|
case IJSVGColorPink:
|
|
return @"pink";
|
|
case IJSVGColorPlum:
|
|
return @"plum";
|
|
case IJSVGColorPowderblue:
|
|
return @"powderblue";
|
|
case IJSVGColorPurple:
|
|
return @"purple";
|
|
case IJSVGColorRed:
|
|
return @"red";
|
|
case IJSVGColorRosybrown:
|
|
return @"rosybrown";
|
|
case IJSVGColorRoyalblue:
|
|
return @"royalblue";
|
|
case IJSVGColorSaddlebrown:
|
|
return @"saddlebrown";
|
|
case IJSVGColorSalmon:
|
|
return @"salmon";
|
|
case IJSVGColorSandybrown:
|
|
return @"sandybrown";
|
|
case IJSVGColorSeagreen:
|
|
return @"seagreen";
|
|
case IJSVGColorSeashell:
|
|
return @"seashell";
|
|
case IJSVGColorSienna:
|
|
return @"sienna";
|
|
case IJSVGColorSilver:
|
|
return @"silver";
|
|
case IJSVGColorSkyblue:
|
|
return @"skyblue";
|
|
case IJSVGColorSlateblue:
|
|
return @"slateblue";
|
|
case IJSVGColorSlategray:
|
|
return @"slategray";
|
|
case IJSVGColorSlategrey:
|
|
return @"slategrey";
|
|
case IJSVGColorSnow:
|
|
return @"snow";
|
|
case IJSVGColorSpringgreen:
|
|
return @"springgreen";
|
|
case IJSVGColorSteelblue:
|
|
return @"steelblue";
|
|
case IJSVGColorTan:
|
|
return @"tan";
|
|
case IJSVGColorTeal:
|
|
return @"teal";
|
|
case IJSVGColorThistle:
|
|
return @"thistle";
|
|
case IJSVGColorTomato:
|
|
return @"tomato";
|
|
case IJSVGColorTurquoise:
|
|
return @"turquoise";
|
|
case IJSVGColorViolet:
|
|
return @"violet";
|
|
case IJSVGColorWheat:
|
|
return @"wheat";
|
|
case IJSVGColorWhite:
|
|
return @"white";
|
|
case IJSVGColorWhitesmoke:
|
|
return @"whitesmoke";
|
|
case IJSVGColorYellow:
|
|
return @"yellow";
|
|
case IJSVGColorYellowgreen:
|
|
return @"yellowgreen";
|
|
}
|
|
return nil;
|
|
}
|
|
|
|
+ (NSColor *)changeAlphaOnColor:(NSColor *)color
|
|
to:(CGFloat)alphaValue
|
|
{
|
|
color = [self computeColorSpace:color];
|
|
return [self computeColorSpace:[NSColor colorWithDeviceRed:[color redComponent]
|
|
green:[color greenComponent]
|
|
blue:[color blueComponent]
|
|
alpha:alphaValue]];
|
|
}
|
|
|
|
+ (BOOL)isColor:(NSString *)string
|
|
{
|
|
return [[string substringToIndex:1] isEqualToString:@"#"] ||
|
|
[[string substringToIndex:3] isEqualToString:@"rgb"];
|
|
}
|
|
|
|
+ (BOOL)isHex:(NSString *)string
|
|
{
|
|
const char * validList = "0123456789ABCDEFabcdef#";
|
|
for(NSInteger i = 0; i < string.length; i++) {
|
|
char c = [string characterAtIndex:i];
|
|
if(strchr(validList, c) == NULL) {
|
|
return NO;
|
|
}
|
|
}
|
|
return YES;
|
|
}
|
|
|
|
+ (NSColor *)colorFromHEXInteger:(NSInteger)hex
|
|
{
|
|
return [self computeColorSpace:[NSColor colorWithDeviceRed:((hex >> 16) & 0xFF) / 255.f
|
|
green:((hex >> 8) & 0xFF) / 255.f
|
|
blue:(hex & 0xFF) / 255.f
|
|
alpha:1.f]];
|
|
}
|
|
|
|
+ (NSColor *)colorFromHEXString:(NSString *)string
|
|
alpha:(CGFloat)alpha
|
|
{
|
|
// absolutely no string
|
|
if( string == nil || string.length == 0 || ![self.class isHex:string] )
|
|
return nil;
|
|
|
|
if( [[string substringToIndex:1] isEqualToString:@"#"] )
|
|
string = [string substringFromIndex:1];
|
|
|
|
// whats the length?
|
|
if(string.length == 3) {
|
|
// shorthand...
|
|
NSMutableString * str = [[[NSMutableString alloc] init] autorelease];
|
|
for( NSInteger i = 0; i < string.length; i++ )
|
|
{
|
|
NSString * sub = [string substringWithRange:NSMakeRange( i, 1)];
|
|
[str appendFormat:@"%@%@",sub,sub];
|
|
}
|
|
string = str;
|
|
}
|
|
|
|
const char * hexString = [string cStringUsingEncoding:NSUTF8StringEncoding];
|
|
unsigned long hex = strtoul(hexString, NULL, 16);
|
|
return [self computeColorSpace:[NSColor colorWithDeviceRed:((hex>>16) & 0xFF)/255.f
|
|
green:((hex>>8) & 0xFF)/255.f
|
|
blue:(hex & 0xFF)/255.f
|
|
alpha:alpha]];
|
|
}
|
|
|
|
@end
|