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//
// ColorRGB.m
// TikZiT
//
// Copyright 2010 Aleks Kissinger. All rights reserved.
//
//
// This file is part of TikZiT.
//
// TikZiT is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// TikZiT is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with TikZiT. If not, see <http://www.gnu.org/licenses/>.
//
#import "ColorRGB.h"
#import "util.h"
typedef struct {
NSString *name;
unsigned short r, g, b;
} ColorRGBEntry;
static const ColorRGBEntry kColors[147] = {
{ @"AliceBlue", 240, 248, 255 },
{ @"AntiqueWhite", 250, 235, 215 },
{ @"Aqua", 0, 255, 255 },
{ @"Aquamarine", 127, 255, 212 },
{ @"Azure", 240, 255, 255 },
{ @"Beige", 245, 245, 220 },
{ @"Bisque", 255, 228, 196 },
{ @"Black", 0, 0, 0 },
{ @"BlanchedAlmond", 255, 235, 205 },
{ @"Blue", 0, 0, 255 },
{ @"BlueViolet", 138, 43, 226 },
{ @"Brown", 165, 42, 42 },
{ @"BurlyWood", 222, 184, 135 },
{ @"CadetBlue", 95, 158, 160 },
{ @"Chartreuse", 127, 255, 0 },
{ @"Chocolate", 210, 105, 30 },
{ @"Coral", 255, 127, 80 },
{ @"CornflowerBlue", 100, 149, 237 },
{ @"Cornsilk", 255, 248, 220 },
{ @"Crimson", 220, 20, 60 },
{ @"Cyan", 0, 255, 255 },
{ @"DarkBlue", 0, 0, 139 },
{ @"DarkCyan", 0, 139, 139 },
{ @"DarkGoldenrod", 184, 134, 11 },
{ @"DarkGray", 169, 169, 169 },
{ @"DarkGreen", 0, 100, 0 },
{ @"DarkGrey", 169, 169, 169 },
{ @"DarkKhaki", 189, 183, 107 },
{ @"DarkMagenta", 139, 0, 139 },
{ @"DarkOliveGreen", 85, 107, 47 },
{ @"DarkOrange", 255, 140, 0 },
{ @"DarkOrchid", 153, 50, 204 },
{ @"DarkRed", 139, 0, 0 },
{ @"DarkSalmon", 233, 150, 122 },
{ @"DarkSeaGreen", 143, 188, 143 },
{ @"DarkSlateBlue", 72, 61, 139 },
{ @"DarkSlateGray", 47, 79, 79 },
{ @"DarkSlateGrey", 47, 79, 79 },
{ @"DarkTurquoise", 0, 206, 209 },
{ @"DarkViolet", 148, 0, 211 },
{ @"DeepPink", 255, 20, 147 },
{ @"DeepSkyBlue", 0, 191, 255 },
{ @"DimGray", 105, 105, 105 },
{ @"DimGrey", 105, 105, 105 },
{ @"DodgerBlue", 30, 144, 255 },
{ @"FireBrick", 178, 34, 34 },
{ @"FloralWhite", 255, 250, 240 },
{ @"ForestGreen", 34, 139, 34 },
{ @"Fuchsia", 255, 0, 255 },
{ @"Gainsboro", 220, 220, 220 },
{ @"GhostWhite", 248, 248, 255 },
{ @"Gold", 255, 215, 0 },
{ @"Goldenrod", 218, 165, 32 },
{ @"Gray", 128, 128, 128 },
{ @"Grey", 128, 128, 128 },
{ @"Green", 0, 128, 0 },
{ @"GreenYellow", 173, 255, 47 },
{ @"Honeydew", 240, 255, 240 },
{ @"HotPink", 255, 105, 180 },
{ @"IndianRed", 205, 92, 92 },
{ @"Indigo", 75, 0, 130 },
{ @"Ivory", 255, 255, 240 },
{ @"Khaki", 240, 230, 140 },
{ @"Lavender", 230, 230, 250 },
{ @"LavenderBlush", 255, 240, 245 },
{ @"LawnGreen", 124, 252, 0 },
{ @"LemonChiffon", 255, 250, 205 },
{ @"LightBlue", 173, 216, 230 },
{ @"LightCoral", 240, 128, 128 },
{ @"LightCyan", 224, 255, 255 },
{ @"LightGoldenrodYellow", 250, 250, 210 },
{ @"LightGray", 211, 211, 211 },
{ @"LightGreen", 144, 238, 144 },
{ @"LightGrey", 211, 211, 211 },
{ @"LightPink", 255, 182, 193 },
{ @"LightSalmon", 255, 160, 122 },
{ @"LightSeaGreen", 32, 178, 170 },
{ @"LightSkyBlue", 135, 206, 250 },
{ @"LightSlateGray", 119, 136, 153 },
{ @"LightSlateGrey", 119, 136, 153 },
{ @"LightSteelBlue", 176, 196, 222 },
{ @"LightYellow", 255, 255, 224 },
{ @"Lime", 0, 255, 0 },
{ @"LimeGreen", 50, 205, 50 },
{ @"Linen", 250, 240, 230 },
{ @"Magenta", 255, 0, 255 },
{ @"Maroon", 128, 0, 0 },
{ @"MediumAquamarine", 102, 205, 170 },
{ @"MediumBlue", 0, 0, 205 },
{ @"MediumOrchid", 186, 85, 211 },
{ @"MediumPurple", 147, 112, 219 },
{ @"MediumSeaGreen", 60, 179, 113 },
{ @"MediumSlateBlue", 123, 104, 238 },
{ @"MediumSpringGreen", 0, 250, 154 },
{ @"MediumTurquoise", 72, 209, 204 },
{ @"MediumVioletRed", 199, 21, 133 },
{ @"MidnightBlue", 25, 25, 112 },
{ @"MintCream", 245, 255, 250 },
{ @"MistyRose", 255, 228, 225 },
{ @"Moccasin", 255, 228, 181 },
{ @"NavajoWhite", 255, 222, 173 },
{ @"Navy", 0, 0, 128 },
{ @"OldLace", 253, 245, 230 },
{ @"Olive", 128, 128, 0 },
{ @"OliveDrab", 107, 142, 35 },
{ @"Orange", 255, 165, 0 },
{ @"OrangeRed", 255, 69, 0 },
{ @"Orchid", 218, 112, 214 },
{ @"PaleGoldenrod", 238, 232, 170 },
{ @"PaleGreen", 152, 251, 152 },
{ @"PaleTurquoise", 175, 238, 238 },
{ @"PaleVioletRed", 219, 112, 147 },
{ @"PapayaWhip", 255, 239, 213 },
{ @"PeachPuff", 255, 218, 185 },
{ @"Peru", 205, 133, 63 },
{ @"Pink", 255, 192, 203 },
{ @"Plum", 221, 160, 221 },
{ @"PowderBlue", 176, 224, 230 },
{ @"Purple", 128, 0, 128 },
{ @"Red", 255, 0, 0 },
{ @"RosyBrown", 188, 143, 143 },
{ @"RoyalBlue", 65, 105, 225 },
{ @"SaddleBrown", 139, 69, 19 },
{ @"Salmon", 250, 128, 114 },
{ @"SandyBrown", 244, 164, 96 },
{ @"SeaGreen", 46, 139, 87 },
{ @"Seashell", 255, 245, 238 },
{ @"Sienna", 160, 82, 45 },
{ @"Silver", 192, 192, 192 },
{ @"SkyBlue", 135, 206, 235 },
{ @"SlateBlue", 106, 90, 205 },
{ @"SlateGray", 112, 128, 144 },
{ @"SlateGrey", 112, 128, 144 },
{ @"Snow", 255, 250, 250 },
{ @"SpringGreen", 0, 255, 127 },
{ @"SteelBlue", 70, 130, 180 },
{ @"Tan", 210, 180, 140 },
{ @"Teal", 0, 128, 128 },
{ @"Thistle", 216, 191, 216 },
{ @"Tomato", 255, 99, 71 },
{ @"Turquoise", 64, 224, 208 },
{ @"Violet", 238, 130, 238 },
{ @"Wheat", 245, 222, 179 },
{ @"White", 255, 255, 255 },
{ @"WhiteSmoke", 245, 245, 245 },
{ @"Yellow", 255, 255, 0 },
{ @"YellowGreen", 154, 205, 50 }
};
static NSMapTable *colorHash = nil;
@implementation ColorRGB
+ (void)initialize {
[self setKeys:[NSArray arrayWithObject:@"red"] triggerChangeNotificationsForDependentKey:@"redFloat"];
[self setKeys:[NSArray arrayWithObject:@"green"] triggerChangeNotificationsForDependentKey:@"greenFloat"];
[self setKeys:[NSArray arrayWithObject:@"blue"] triggerChangeNotificationsForDependentKey:@"blueFloat"];
[self setKeys:[NSArray arrayWithObjects:@"red", @"green", @"blue", nil]
triggerChangeNotificationsForDependentKey:@"name"];
}
@synthesize red, green, blue;
- (float)redFloat { return ((float)red)/255.0f; }
- (void)setRedFloat:(float)r { [self setRed:round(r*255.0f)]; }
- (float)greenFloat { return ((float)green)/255.0f; }
- (void)setGreenFloat:(float)g { [self setGreen:round(g*255.0f)]; }
- (float)blueFloat { return ((float)blue)/255.0f; }
- (void)setBlueFloat:(float)b { [self setBlue:round(b*255.0f)]; }
- (int)hash {
return (red<<4) + (green<<2) + blue;
}
- (id)initWithRed:(unsigned short)r green:(unsigned short)g blue:(unsigned short)b {
self = [super init];
if (self) {
red = r;
green = g;
blue = b;
}
return self;
}
- (id)initWithFloatRed:(float)r green:(float)g blue:(float)b {
self = [super init];
if (self) {
red = round(r*255.0f);
green = round(g*255.0f);
blue = round(b*255.0f);
}
return self;
}
- (id) initWithRColor:(RColor)color {
return [self initWithFloatRed:color.red green:color.green blue:color.blue];
}
- (RColor) rColor {
return MakeSolidRColor ([self redFloat], [self greenFloat], [self blueFloat]);
}
- (RColor) rColorWithAlpha:(CGFloat)alpha {
return MakeRColor ([self redFloat], [self greenFloat], [self blueFloat], alpha);
}
- (NSString*)name {
if (colorHash == nil)
[ColorRGB makeColorHash];
return [colorHash objectForKey:self];
}
- (NSString*)hexName {
return [NSString stringWithFormat:@"hexcolor0x%.2x%.2x%.2x", red, green, blue];
}
- (NSComparisonResult)compare:(ColorRGB*)col {
if (red > [col red]) return NSOrderedDescending;
else if (red < [col red]) return NSOrderedAscending;
else {
if (green > [col green]) return NSOrderedDescending;
else if (green < [col green]) return NSOrderedAscending;
else {
if (blue > [col blue]) return NSOrderedDescending;
else if (blue < [col blue]) return NSOrderedAscending;
else return NSOrderedSame;
}
}
}
- (BOOL)isEqual:(id)col {
return [self compare:col] == NSOrderedSame;
}
- (float)distanceFromColor:(ColorRGB *)col {
float dr = (float)(red - [col red]);
float dg = (float)(green - [col green]);
float db = (float)(blue - [col blue]);
return dr*dr + dg*dg + db*db;
}
- (id)copyWithZone:(NSZone*)zone {
ColorRGB *col = [[ColorRGB allocWithZone:zone] initWithRed:red green:green blue:blue];
return col;
}
+ (ColorRGB*)colorWithRed:(unsigned short)r green:(unsigned short)g blue:(unsigned short)b {
ColorRGB *col = [[ColorRGB alloc] initWithRed:r green:g blue:b];
return [col autorelease];
}
+ (ColorRGB*)colorWithFloatRed:(float)r green:(float)g blue:(float)b {
ColorRGB *col = [[ColorRGB alloc] initWithFloatRed:r green:g blue:b];
return [col autorelease];
}
+ (ColorRGB*) colorWithRColor:(RColor)color {
return [[[self alloc] initWithRColor:color] autorelease];
}
+ (void)makeColorHash {
NSMapTable *h = [[NSMapTable alloc] init];
int i;
for (i = 0; i < 147; ++i) {
ColorRGB *col = [[ColorRGB alloc] initWithRed:kColors[i].r
green:kColors[i].g
blue:kColors[i].b];
[h setObject:kColors[i].name forKey:col];
//NSLog(@"adding color %@ (%d)", kColors[i].name, [col hash]);
[col release];
}
colorHash = h;
}
+ (void)releaseColorHash {
[colorHash release];
}
- (void)setToClosestHashed {
if (colorHash == nil)
[ColorRGB makeColorHash];
float bestDist = -1;
ColorRGB *bestColor = nil;
NSEnumerator *enumerator = [colorHash keyEnumerator];
ColorRGB *tryColor;
while ((tryColor = [enumerator nextObject]) != nil) {
float dist = [self distanceFromColor:tryColor];
if (bestDist<0 || dist<bestDist) {
bestDist = dist;
bestColor = tryColor;
}
}
[self setRed:[bestColor red]];
[self setGreen:[bestColor green]];
[self setBlue:[bestColor blue]];
}
@end
// vi:noet:ts=4:sts=4:sw=4
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