colorencoder.java

esri的ArcGIS Server超级学习模板程序（for java）

/**
 * 
 */
package com.esri.solutions.jitk.data.svg;

import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;

/**
 * @author vlad2928
 *
 */
public class ColorEncoder {

	// HashTable with 147 standard SVG entries 
	private static final Hashtable<String, String> _svgColors = new Hashtable<String, String>();
	
	static {
		_svgColors.put("black","0,0,0"); 						_svgColors.put("navy","0,0,128"); 					_svgColors.put("darkblue","0,0,139");
		_svgColors.put("mediumblue","0,0,205"); 				_svgColors.put("blue","0,0,255"); 					_svgColors.put("darkgreen","0,100,0");
		_svgColors.put("green","0,128,0"); 						_svgColors.put("teal","0,128,128"); 				_svgColors.put("darkcyan","0,139,139");
		_svgColors.put("deepskyblue","0,191,255"); 				_svgColors.put("darkturquoise","0,206,209"); 		_svgColors.put("mediumspringgreen","0,250,154");
		_svgColors.put("lime","0,255,0"); 						_svgColors.put("springgreen","0,255,127"); 			_svgColors.put("cyan","0,255,255");
		_svgColors.put("aqua","0,255,255"); 					_svgColors.put("midnightblue","25,25,112"); 		_svgColors.put("dodgerblue","30,144,255");
		_svgColors.put("lightseagreen","32,178,170"); 			_svgColors.put("forestgreen","34,139,34"); 			_svgColors.put("seagreen","46,139,87");
		_svgColors.put("darkslategray","47,79,79"); 			_svgColors.put("darkslategrey","47,79,79"); 		_svgColors.put("limegreen","50,205,50");
		_svgColors.put("mediumseagreen","60,179,113");	 		_svgColors.put("turquoise","64,224,208"); 			_svgColors.put("royalblue","65,105,225");
		_svgColors.put("steelblue","70,130,180"); 				_svgColors.put("darkslateblue","72,61,139"); 		_svgColors.put("mediumturquoise","72,209,204");
		_svgColors.put("indigo","75,0,130"); 					_svgColors.put("darkolivegreen","85,107,47"); 		_svgColors.put("cadetblue","95,158,160");
		_svgColors.put("cornflowerblue","100,149,237"); 		_svgColors.put("mediumaquamarine","102,205,170"); 	_svgColors.put("dimgrey","105,105,105");
		_svgColors.put("dimgray","105,105,105"); 				_svgColors.put("slateblue","106,90,205"); 			_svgColors.put("olivedrab","107,142,35");
		_svgColors.put("slategrey","112,128,144"); 				_svgColors.put("slategray","112,128,144"); 			_svgColors.put("lightslategray","119,136,153");
		_svgColors.put("lightslategrey","119,136,153"); 		_svgColors.put("mediumslateblue","123,104,238"); 	_svgColors.put("lawngreen","124,252,0");
		_svgColors.put("chartreuse","127,255,0");	 			_svgColors.put("aquamarine","127,255,212"); 		_svgColors.put("maroon","128,0,0");
		_svgColors.put("purple","128,0,128"); 					_svgColors.put("olive","128,128,0"); 				_svgColors.put("gray","128,128,128");
		_svgColors.put("grey","128,128,128"); 					_svgColors.put("skyblue","135,206,235"); 			_svgColors.put("lightskyblue","135,206,250");
		_svgColors.put("blueviolet","138,43,226");		 		_svgColors.put("darkred","139,0,0"); 				_svgColors.put("darkmagenta","139,0,139");
		_svgColors.put("saddlebrown","139,69,19"); 				_svgColors.put("darkseagreen","143,188,143");		_svgColors.put("lightgreen","144,238,144");
		_svgColors.put("mediumpurple","147,112,219"); 			_svgColors.put("darkviolet","148,0,211"); 			_svgColors.put("palegreen","152,251,152");
		_svgColors.put("darkorchid","153,50,204");				_svgColors.put("yellowgreen","154,205,50"); 		_svgColors.put("sienna","160,82,45");
		_svgColors.put("brown","165,42,42"); 					_svgColors.put("darkgray","169,169,169"); 			_svgColors.put("darkgrey","169,169,169");
		_svgColors.put("lightblue","173,216,230");				_svgColors.put("greenyellow","173,255,47"); 		_svgColors.put("paleturquoise","175,238,238");
		_svgColors.put("lightsteelblue","176,196,222"); 		_svgColors.put("powderblue","176,224,230"); 		_svgColors.put("firebrick","178,34,34");
		_svgColors.put("darkgoldenrod","184,134,11"); 			_svgColors.put("mediumorchid","186,85,211");	 	_svgColors.put("rosybrown","188,143,143");
		_svgColors.put("darkkhaki","189,183,107"); 				_svgColors.put("silver","192,192,192"); 			_svgColors.put("mediumvioletred","199,21,133");
		_svgColors.put("indianred","205,92,92"); 				_svgColors.put("peru","205,133,63"); 				_svgColors.put("chocolate","210,105,30");
		_svgColors.put("tan","210,180,140"); 					_svgColors.put("lightgray","211,211,211"); 			_svgColors.put("lightgrey","211,211,211");
		_svgColors.put("thistle","216,191,216"); 				_svgColors.put("orchid","218,112,214"); 			_svgColors.put("goldenrod","218,165,32");
		_svgColors.put("palevioletred","219,112,147"); 			_svgColors.put("crimson","220,20,60"); 				_svgColors.put("gainsboro","220,220,220");
		_svgColors.put("plum","221,160,221"); 					_svgColors.put("burlywood","222,184,135"); 			_svgColors.put("lightcyan","224,255,255");
		_svgColors.put("lavender","230,230,250"); 				_svgColors.put("darksalmon","233,150,122"); 		_svgColors.put("violet","238,130,238");
		_svgColors.put("palegoldenrod","238,232,170"); 			_svgColors.put("lightcoral","240,128,128"); 		_svgColors.put("khaki","240,230,140");
		_svgColors.put("aliceblue","240,248,255"); 				_svgColors.put("honeydew","240,255,240"); 			_svgColors.put("azure","240,255,255");
		_svgColors.put("sandybrown","244,164,96"); 				_svgColors.put("wheat","245,222,179"); 				_svgColors.put("beige","245,245,220");
		_svgColors.put("whitesmoke","245,245,245"); 			_svgColors.put("mintcream","245,255,250"); 			_svgColors.put("ghostwhite","248,248,255");
		_svgColors.put("salmon","250,128,114"); 				_svgColors.put("antiquewhite","250,235,215"); 		_svgColors.put("linen","250,240,230");
		_svgColors.put("lightgoldenrodyellow","250,250,210"); 	_svgColors.put("oldlace","253,245,230"); 			_svgColors.put("red","255,0,0");
		_svgColors.put("fuchsia","255,0,255"); 					_svgColors.put("magenta","255,0,255"); 				_svgColors.put("deeppink","255,20,147");
		_svgColors.put("orangered","255,69,0"); 				_svgColors.put("tomato","255,99,71"); 				_svgColors.put("hotpink","255,105,180");
		_svgColors.put("coral","255,127,80"); 					_svgColors.put("darkorange","255,140,0"); 			_svgColors.put("lightsalmon","255,160,122");
		_svgColors.put("orange","255,165,0"); 					_svgColors.put("lightpink","255,182,193"); 			_svgColors.put("pink","255,192,203");
		_svgColors.put("gold","255,215,0");	 					_svgColors.put("peachpuff","255,218,185"); 			_svgColors.put("navajowhite","255,222,173");
		_svgColors.put("moccasin","255,228,181"); 				_svgColors.put("bisque","255,228,196"); 			_svgColors.put("mistyrose","255,228,225");
		_svgColors.put("blanchedalmond","255,235,205"); 		_svgColors.put("papayawhip","255,239,213"); 		_svgColors.put("lavenderblush","255,240,245");
		_svgColors.put("seashell","255,245,238"); 				_svgColors.put("cornsilk","255,248,220"); 			_svgColors.put("lemonchiffon","255,250,205");
		_svgColors.put("floralwhite","255,250,240"); 			_svgColors.put("snow","255,250,250"); 				_svgColors.put("yellow","255,255,0");
		_svgColors.put("lightyellow","255,255,224"); 			_svgColors.put("ivory","255,255,240"); 				_svgColors.put("white","255,255,255");
	}
	
	/**
	 * @author vlad2928
	 * Method isADFRGBColorFormat()
	 *
	 * @param color - color string
	 * @return true - if string is ADF RGB formatted string
	 * 		   false - otherwise
	 */
	
	public static boolean isADFRGBColorFormat(String color) {
		return (color != null && color.replaceAll("\\s", "").matches("\\d{1,3},\\d{1,3},\\d{1,3}"));
	}
	
	/**
	 * @author vlad2928
	 * Method isSVGRGBColorFormat()
	 *
	 * @param color - color string
	 * @return true - if string is SVG RGB formatted string
	 * 		   false - otherwise
	 */
	
	public static boolean isSVGRGBColorFormat(String color) {
		return (color != null && color.replaceAll("\\s", "").matches("rgb\\(\\d{1,3},\\d{1,3},\\d{1,3}\\)"));
	}
	
	/**
	 * @author vlad2928
	 * Method isPatternLink()
	 *
	 * @param color - color string
	 * @return true - if string is pattern link formatted string
	 * 		   false - otherwise
	 */
	
	public static boolean isPatternLink(String color) {
		return (color != null && color.replaceAll("\\s", "").matches("url\\(#\\w+\\)"));
	}
	
	/**
	 * @author vlad2928
	 * Method isSVGStandardColor()
	 *
	 * @param color - color string
	 * @return true - if string is SVG standard color
	 * 		   false - otherwise
	 */
	
	public static boolean isSVGStandardColor(String color) {
		return (color != null && (_svgColors.containsKey(color) || _svgColors.containsValue(color)));
	}
	
	/**
	 * @author vlad2928
	 * Method parseColor() attempts to parse an input String into RGB color String in ADF format - "red,green,blue"
	 *
	 * @param color - color string to parse
	 * @return 1) "red,green,blue"-formatted string for [rgb(red,green,blue) | svg standard color name | red,green,blue]
	 * 		   2) link to pattern - for input like "url(#link to pattern)"
	 * 		   3) "none" - for "none" input
	 * 		   4) "" - for all other cases
	 */
	
	public static String parseColor(String color) {
		
		if(color != null) {
			color = color.replaceAll("\\s", "").toLowerCase();
			
			if(isSVGRGBColorFormat(color)) // This is a SVG RGB color format
				color = color.replaceAll("rgb", "").replaceAll("\\(", "").replaceAll("\\)", "");
			
			if(isADFRGBColorFormat(color)) { // This is an ADF RGB color format 
				String[] rgb = color.split(",");
				int red = SVGUtils.toInt(rgb[0], -1);
				int green = SVGUtils.toInt(rgb[1], -1);
				int blue = SVGUtils.toInt(rgb[2], -1);
				
				if((red >= 0 && red <= 255) && (green >= 0 && green <= 255) && (blue >= 0 && blue <= 255))
					return rgb[0] + "," + rgb[1] + "," + rgb[2];
			} 
			
			if(color.equals("none")) return "none";
			
			if(_svgColors.containsKey(color)) // This is a standard SVG color name
				return _svgColors.get(color);
			
			if(isPatternLink(color)) // This is a link to the pattern
				return color.replaceAll("url", "").replaceAll("\\(#", "").replaceAll("\\)", "");
		}
		
		return "";
	}
	
	/**
	 * @author vlad2928
	 * @param rgb color to covert
	 * @return svg formatted color
	 *  
	 */
	public static String toSVG(String rgbColor) {
		
		if(isADFRGBColorFormat(rgbColor))
			return "rgb(" + rgbColor + ")";
		
		else if(isSVGStandardColor(rgbColor))
			for(Iterator<Map.Entry<String, String>> i = _svgColors.entrySet().iterator(); i.hasNext();) {
				Map.Entry<String,String> entry = i.next();
				
				if(entry.getValue().equals(rgbColor))
					return entry.getKey().toString();
			}
		
		return parseColor(rgbColor);
	}
}