package railo.commons.color;
import java.awt.Color;
import railo.commons.lang.NumberUtil;
import railo.commons.lang.StringUtil;
import railo.runtime.exp.ExpressionException;
import railo.runtime.op.Caster;
import railo.runtime.type.util.ListUtil;
public final class ColorCaster {
/**
* calculate the contrast between 2 colors
* @param left
* @param right
* @return a int between 0 (badest) and 510 (best)
*/
public static int contrast(Color left, Color right) {
return
(Math.max(left.getRed(), right.getRed()) - Math.min(left.getRed(), right.getRed())) +
(Math.max(left.getGreen(), right.getGreen()) - Math.min(left.getGreen(), right.getGreen())) +
(Math.max(left.getBlue(), right.getBlue()) - Math.max(left.getBlue(), right.getBlue()));
}
public static Color toColor(String strColor) throws ExpressionException {
if(StringUtil.isEmpty(strColor,true))
throw new ExpressionException("can't cast empty string to a color Object");
strColor=strColor.toLowerCase().trim();
char first=strColor.charAt(0);
switch(first) {
case 'a':
if("aqua".equals(strColor)) return new Color(0,0xFF,0xFF);
if("aliceblue".equals(strColor)) return new Color(0xF0,0xF8,0xFF);
if("antiquewhite".equals(strColor)) return new Color(0xFA,0xEB,0xD7);
if("quamarine".equals(strColor)) return new Color(0x7F,0xFF,0xD4);
if("azure".equals(strColor)) return new Color(0xF0,0xFF,0xFF);
break;
case 'b':
if("black".equals(strColor)) return Color.BLACK;
if("blue".equals(strColor)) return Color.BLUE;
if("blue".equals(strColor)) return Color.CYAN;
if("beige".equals(strColor)) return new Color(0xF5,0xF5,0xDC);
if("blueviolet".equals(strColor)) return new Color(0x8A,0x2B,0xE2);
if("brown".equals(strColor)) return new Color(0xA5,0x2A,0x2A);
if("burlywood".equals(strColor)) return new Color(0xDE,0xB8,0x87);
break;
case 'c':
if("cyan".equals(strColor)) return Color.CYAN;
if("cadetblue".equals(strColor)) return new Color(0x5F,0x9E,0xA0);
if("chartreuse".equals(strColor)) return new Color(0x7F,0xFF,0x00);
if("chocolate".equals(strColor)) return new Color(0xD2,0x69,0x1E);
if("coral".equals(strColor)) return new Color(0xFF,0x7F,0x50);
if("cornflowerblue".equals(strColor))return new Color(0x64,0x95,0xED);
if("cornsilk".equals(strColor)) return new Color(0xFF,0xF8,0xDC);
if("crimson".equals(strColor)) return new Color(0xDC,0x14,0x3C);
break;
case 'd':
if("darkgray".equals(strColor)) return Color.DARK_GRAY;
if("darkblue".equals(strColor)) return new Color(0x00,0x00,0x8B);
if("darkcyan".equals(strColor)) return new Color(0x00,0x8B,0x8B);
if("darkgoldenrod".equals(strColor))return new Color(0xB8,0x86,0x0B);
if("darkgreen".equals(strColor)) return new Color(0x00,0x64,0x00);
if("darkkhaki".equals(strColor)) return new Color(0xBD,0xB7,0x6B);
if("darkmagenta".equals(strColor)) return new Color(0x8B,0x00,0x8B);
if("darkolivegreen".equals(strColor))return new Color(0x55,0x6B,0x2F);
if("darkorange".equals(strColor)) return new Color(0xFF,0x8C,0x00);
if("darkorchid".equals(strColor)) return new Color(0x99,0x32,0xcc);
if("darkred".equals(strColor)) return new Color(0x8B,0x00,0x00);
if("darksalmon".equals(strColor)) return new Color(0xE9,0x96,0x7A);
if("darkseagreen".equals(strColor)) return new Color(0x8F,0xBC,0x8F);
if("darkslateblue".equals(strColor))return new Color(0x2F,0x4F,0x4F);
if("darkslategray".equals(strColor))return new Color(0x48,0x3D,0x8B);
if("darkturquoise".equals(strColor))return new Color(0x00,0xCE,0xD1);
if("darkviolet".equals(strColor)) return new Color(0x94,0x00,0xD3);
if("deeppink".equals(strColor)) return new Color(0xFF,0x14,0x93);
if("deepskyblue".equals(strColor)) return new Color(0x00,0xBF,0xFF);
if("dimgray".equals(strColor)) return new Color(0x69,0x69,0x69);
if("dodgerblue".equals(strColor)) return new Color(0x1E,0x90,0xFF);
break;
case 'f':
if("fuchsia".equals(strColor)) return new Color(0xFF,0,0xFF);
if("firebrick".equals(strColor)) return new Color(0xB2,0x22,0x22);
if("floralwhite".equals(strColor)) return new Color(0xFF,0xFA,0xF0);
if("forestgreen".equals(strColor)) return new Color(0x22,0x8B,0x22);
break;
case 'g':
if("gray".equals(strColor)) return Color.GRAY;
if("green".equals(strColor)) return Color.GREEN;
if("gainsboro".equals(strColor)) return new Color(0xDC,0xDC,0xDC);
if("ghostwhite".equals(strColor)) return new Color(0xF8,0xF8,0xFF);
if("gold".equals(strColor)) return new Color(0xFF,0xD7,0x00);
if("goldenrod".equals(strColor)) return new Color(0xDA,0xA5,0x20);
if("greenyellow".equals(strColor)) return new Color(0xAD,0xFF,0x2F);
break;
case 'h':
if("honeydew".equals(strColor)) return new Color(0xF0,0xFF,0xF0);
if("hotpink".equals(strColor)) return new Color(0xFF,0x69,0xB4);
break;
case 'i':
if("indianred".equals(strColor)) return new Color(0xCD,0x5C,0x5C);
if("indigo".equals(strColor)) return new Color(0x4B,0x00,0x82);
if("ivory".equals(strColor)) return new Color(0xFF,0xFF,0xF0);
break;
case 'k':
if("khaki".equals(strColor)) return new Color(0xF0,0xE6,0x8C);
break;
case 'l':
if("lightgray".equals(strColor)) return Color.lightGray;
if("lime".equals(strColor)) return new Color(0,0xFF,0);
if("lavender".equals(strColor)) return new Color(0xE6,0xE6,0xFA);
if("lavenderblush".equals(strColor))return new Color(0xFF,0xF0,0xF5);
if("lawngreen".equals(strColor)) return new Color(0x7C,0xFC,0x00);
if("lemonchiffon".equals(strColor)) return new Color(0xFF,0xFA,0xCD);
if("lightblue".equals(strColor)) return new Color(0xAD,0xD8,0xE6);
if("lightcoral".equals(strColor)) return new Color(0xF0,0x80,0x80);
if("lightcyan".equals(strColor)) return new Color(0xE0,0xFF,0xFF);
if("lightgoldenrodyellow".equals(strColor)) return new Color(0xFA,0xFA,0xD2);
if("lightgreen".equals(strColor)) return new Color(0x90,0xEE,0x90);
if("lightgrey".equals(strColor)) return new Color(0xD3,0xD3,0xD3);
if("lightpink".equals(strColor)) return new Color(0xFF,0xB6,0xC1);
if("lightsalmon".equals(strColor)) return new Color(0xFF,0xA0,0x7A);
if("lightseagreen".equals(strColor))return new Color(0x20,0xB2,0xAA);
if("lightskyblue".equals(strColor)) return new Color(0x87,0xCE,0xFA);
if("lightslategray".equals(strColor))return new Color(0x77,0x88,0x99);
if("lightsteelblue".equals(strColor))return new Color(0xB0,0xC4,0xDE);
if("lightyellow".equals(strColor)) return new Color(0xFF,0xFF,0xE0);
if("limegreen".equals(strColor)) return new Color(0x32,0xCD,0x32);
if("linen".equals(strColor)) return new Color(0xFA,0xF0,0xE6);
break;
case 'm':
if("magenta".equals(strColor)) return Color.MAGENTA;
if("maroon".equals(strColor)) return new Color(0X80,0,0);
if("mediumaquamarine".equals(strColor)) return new Color(0x66,0xCD,0xAA);
if("mediumblue".equals(strColor)) return new Color(0x00,0x00,0xCD);
if("mediumorchid".equals(strColor)) return new Color(0xBA,0x55,0xD3);
if("mediumpurple".equals(strColor)) return new Color(0x93,0x70,0xDB);
if("mediumseagreen".equals(strColor)) return new Color(0x3C,0xB3,0x71);
if("mediumslateblue".equals(strColor)) return new Color(0x7B,0x68,0xEE);
if("mediumspringgreen".equals(strColor)) return new Color(0x00,0xFA,0x9A);
if("mediumturquoise".equals(strColor)) return new Color(0x48,0xD1,0xCC);
if("mediumvioletred".equals(strColor)) return new Color(0xC7,0x15,0x85);
if("midnightblue".equals(strColor)) return new Color(0x19,0x19,0x70);
if("mintcream".equals(strColor)) return new Color(0xF5,0xFF,0xFA);
if("mistyrose".equals(strColor)) return new Color(0xFF,0xE4,0xE1);
if("moccasin".equals(strColor)) return new Color(0xFF,0xE4,0xB5);
break;
case 'n':
if("navy".equals(strColor)) return new Color(0,0,0X80);
if("navajowhite".equals(strColor)) return new Color(0xFF,0xDE,0xAD);
break;
case 'o':
if("orange".equals(strColor)) return Color.ORANGE;
if("olive".equals(strColor)) return new Color(0X80,0X80,0);
if("oldlace".equals(strColor)) return new Color(0xFD,0xF5,0xE6);
if("olivedrab".equals(strColor)) return new Color(0x6B,0x8E,0x23);
if("orangered".equals(strColor)) return new Color(0xFF,0x45,0x00);
if("orchid".equals(strColor)) return new Color(0xDA,0x70,0xD6);
break;
case 'p':
if("pink".equals(strColor)) return Color.PINK;
if("purple".equals(strColor)) return new Color(0X80,0,0X80);
if("palegoldenrod".equals(strColor)) return new Color(0xEE,0xE8,0xAA);
if("palegreen".equals(strColor)) return new Color(0x98,0xFB,0x98);
if("paleturquoise".equals(strColor)) return new Color(0xAF,0xEE,0xEE);
if("palevioletred".equals(strColor)) return new Color(0xDB,0x70,0x93);
if("papayawhip".equals(strColor)) return new Color(0xFF,0xEF,0xD5);
if("peachpuff".equals(strColor)) return new Color(0xFF,0xDA,0xB9);
if("peru".equals(strColor)) return new Color(0xCD,0x85,0x3F);
if("pink".equals(strColor)) return new Color(0xFF,0xC0,0xCB);
if("plum".equals(strColor)) return new Color(0xDD,0xA0,0xDD);
if("powderblue".equals(strColor)) return new Color(0xB0,0xE0,0xE6);
break;
case 'r':
if("red".equals(strColor)) return Color.RED;
if("rosybrown".equals(strColor)) return new Color(0xBC,0x8F,0x8F);
if("royalblue".equals(strColor)) return new Color(0x41,0x69,0xE1);
break;
case 's':
if("silver".equals(strColor)) return new Color(0XC0,0XC0,0XC0);
if("saddlebrown".equals(strColor)) return new Color(0x8B,0x45,0x13);
if("salmon".equals(strColor)) return new Color(0xFA,0x80,0x72);
if("sandybrown".equals(strColor)) return new Color(0xF4,0xA4,0x60);
if("seagreen".equals(strColor)) return new Color(0x2E,0x8B,0x57);
if("seashell".equals(strColor)) return new Color(0xFF,0xF5,0xEE);
if("sienna".equals(strColor)) return new Color(0xA0,0x52,0x2D);
if("skyblue".equals(strColor)) return new Color(0x87,0xCE,0xEB);
if("slateblue".equals(strColor)) return new Color(0x6A,0x5A,0xCD);
if("slategray".equals(strColor)) return new Color(0x70,0x80,0x90);
if("snow".equals(strColor)) return new Color(0xFF,0xFA,0xFA);
if("springgreen".equals(strColor)) return new Color(0x00,0xFF,0x7F);
if("steelblue".equals(strColor)) return new Color(0x46,0x82,0xB4);
break;
case 't':
if("teal".equals(strColor)) return new Color(0,0X80,0X80);
if("tan".equals(strColor)) return new Color(0xD2,0xB4,0x8C);
if("thistle".equals(strColor)) return new Color(0xD8,0xBF,0xD8);
if("tomato".equals(strColor)) return new Color(0xFF,0x63,0x47);
if("turquoise".equals(strColor)) return new Color(0x40,0xE0,0xD0);
//if("".equals(strColor)) return new Color(0x,0x,0x);
break;
case 'v':
if("violet".equals(strColor)) return new Color(0xEE,0x82,0xEE);
break;
case 'w':
if("white".equals(strColor)) return Color.WHITE;
if("wheat".equals(strColor)) return new Color(0xF5,0xDE,0xB3);
if("whitesmoke".equals(strColor)) return new Color(0xF5,0xF5,0xF5);
break;
case 'y':
if("yellow".equals(strColor)) return Color.YELLOW;
if("yellowgreen".equals(strColor)) return new Color(0x9A,0xCD,0x32);
break;
}
if(first=='#') {
String strColor2 = strColor.substring(1);
// #fff
if(strColor2.length()==3) {
char c1=strColor2.charAt(0);
char c2=strColor2.charAt(1);
char c3=strColor2.charAt(2);
return new Color(NumberUtil.hexToInt(""+c1+c1),NumberUtil.hexToInt(""+c2+c2),NumberUtil.hexToInt(""+c3+c3));
}
// #ffffff
if(strColor2.length()==6) {
String s1=strColor2.substring(0,2);
String s2=strColor2.substring(2,4);
String s3=strColor2.substring(4,6);
return new Color(NumberUtil.hexToInt(s1),NumberUtil.hexToInt(s2),NumberUtil.hexToInt(s3));
}
// #ffffffff
if(strColor2.length()==8) {
String s1=strColor2.substring(0,2);
String s2=strColor2.substring(2,4);
String s3=strColor2.substring(4,6);
String s4=strColor2.substring(6,8);
return new Color(NumberUtil.hexToInt(s1),NumberUtil.hexToInt(s2),NumberUtil.hexToInt(s3),NumberUtil.hexToInt(s4));
}
}
// rgb(255,0,0)
if(strColor.startsWith("rgb(") && strColor.endsWith(")")) {
String strColor2 = strColor.substring(4,strColor.length()-1).trim();
String[] arr = ListUtil.listToStringArray(strColor2,',');
if(arr.length==3) {
int i1 = Caster.toIntValue(arr[0]);
int i2 = Caster.toIntValue(arr[1]);
int i3 = Caster.toIntValue(arr[2]);
return new Color(i1,i2,i3);
}
}
// fff
if(strColor.length()==3) {
char c1=strColor.charAt(0);
char c2=strColor.charAt(1);
char c3=strColor.charAt(2);
int i1=NumberUtil.hexToInt(""+c1+c1,-1);
int i2=NumberUtil.hexToInt(""+c2+c2,-1);
int i3=NumberUtil.hexToInt(""+c3+c3,-1);
if(i1!=-1 && i2!=-1 && i3!=-1) return new Color(i1,i2,i3);
}
// ffffff
else if(strColor.length()==6) {
String s1=strColor.substring(0,2);
String s2=strColor.substring(2,4);
String s3=strColor.substring(4,6);
int i1=NumberUtil.hexToInt(s1,-1);
int i2=NumberUtil.hexToInt(s2,-1);
int i3=NumberUtil.hexToInt(s3,-1);
if(i1!=-1 && i2!=-1 && i3!=-1) return new Color(i1,i2,i3);
}
// ffffffff
else if(strColor.length()==8) {
String s1=strColor.substring(0,2);
String s2=strColor.substring(2,4);
String s3=strColor.substring(4,6);
String s4=strColor.substring(6,8);
int i1=NumberUtil.hexToInt(s1,-1);
int i2=NumberUtil.hexToInt(s2,-1);
int i3=NumberUtil.hexToInt(s3,-1);
int i4=NumberUtil.hexToInt(s4,-1);
if(i1!=-1 && i2!=-1 && i3!=-1 && i4!=-1) return new Color(i1,i2,i3,i4);
}
// 255,0,0
String[] arr = ListUtil.listToStringArray(strColor, ',');
if(arr.length==3){
int i1 = Caster.toIntValue(arr[0],-1);
int i2 = Caster.toIntValue(arr[1],-1);
int i3 = Caster.toIntValue(arr[2],-1);
if(i1>-1 && i2>-1 && i3>-1) return new Color(i1,i2,i3);
}
throw new ExpressionException("invalid color definition ["+strColor+"]",
"color must be a know constant label (blue,green,yellow ...), a hexadecimal value (#ffffff) or a RGB value (rgb(255,255,255)), 255,255,255");
}
/*private static int hexToInt(String s, boolean throwException) throws ExpressionException {
int[] n = new int[s.length()];
char c;
int sum = 0;
int koef = 1;
for(int i=n.length-1; i>=0; i--) {
c = s.charAt(i);
if(!((c>='0' && c<='9') || (c>='a' && c<='f'))) {
if(!throwException) return -1;
throw new ExpressionException("invalid hex constant ["+c+"], hex constants are [0-9,a-f]");
}
//System.out.println(c);
switch (c) {
case 48:
n[i] = 0;
break;
case 49:
n[i] = 1;
break;
case 50:
n[i] = 2;
break;
case 51:
n[i] = 3;
break;
case 52:
n[i] = 4;
break;
case 53:
n[i] = 5;
break;
case 54:
n[i] = 6;
break;
case 55:
n[i] = 7;
break;
case 56:
n[i] = 8;
break;
case 57:
n[i] = 9;
break;
case 97:
n[i] = 10;
break;
case 98:
n[i] = 11;
break;
case 99:
n[i] = 12;
break;
case 100:
n[i] = 13;
break;
case 101:
n[i] = 14;
break;
case 102:
n[i] = 15;
break;
}
sum = sum + n[i]*koef;
koef=koef*16;
}
return sum;
} */
public static void main(String[] args) throws ExpressionException {
System.out.println(toColor("White"));
System.out.println(toColor("#fff"));
System.out.println(toColor("#ffffff"));
System.out.println(toColor("#ffffffff"));
System.out.println(toColor("fff"));
System.out.println(toColor("ffffff"));
System.out.println(toColor("rgb(255,255,255)"));
}
public static String toHexString(Color color) {
return "#"+toHexString(color.getRed())+
toHexString(color.getGreen())+
toHexString(color.getBlue());
}
private static String toHexString(int clr) {
String str = Integer.toHexString(clr);
if(str.length()==1)return "0"+str;
return str;
}
}