Colors.java

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package edu.tum.cs.ias.knowrob.util;

public class Colors {
        public static Colors defaultInstance;
        static { defaultInstance = new Colors(); }
        
        public static int[][] defaultColors = new int[][] {
                {255,0,0,255},
                {255,255,0,255},
                {0,0,255,255},
                {255,0,255,255},
                {150,150,0,255},
                {0,150,150,255},
                {0,255,0,255},
                {150,0,0,255},
                {0,150,0,255},
                {150,0,150,255},
                {0,255,255,255},
                {0,150,255,255},
                {150,0,255,255},
                {0,255,150,255},
                {0,0,150,255},
                {150,255,0,255},
                {255,0,150,255},
                {255,150,0,255},
        };
        
        private int currentDefaultColor;
        
        public static int convertColor(int red, int green, int blue, int alpha) {
                return (((((alpha << 8) + red) << 8) + green) << 8) + blue;
        }
        public static int getRed(int color) {
                return (color >> 16) % 256;
        }
        public static int getGreen(int color) {
                return (color >> 8) % 256;
        }
        public static int getBlue(int color) {
                return color% 256;
        }
        public static int getAlpha(int color) {
                return (color >> 24) % 256;
        }
        public int nextColor() {
                int color = convertColor(defaultColors[currentDefaultColor][0],defaultColors[currentDefaultColor][1],defaultColors[currentDefaultColor][2],defaultColors[currentDefaultColor][3]);
                currentDefaultColor = (currentDefaultColor+1) % defaultColors.length;
                return color;
        }
        
        public static int getColor() {
                return defaultInstance.nextColor();
        }
}