Legend.java

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package edu.tum.cs.ias.knowrob.vis.items;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.*;

import edu.tum.cs.ias.knowrob.vis.Canvas;
import edu.tum.cs.ias.knowrob.vis.Drawable;

public class Legend implements Drawable {
        
        int legPosX = 0, legPosY = 0;
        
        public Legend(java.io.File labelFile, int x, int y) throws NumberFormatException, IOException {
                legPosX = x;
                legPosY = y;
                loadLabels(labelFile);
        }
        
        public Vector<String> stringLeg = new Vector<String>();
        public static int[] colors = new int[] {0xffff0000, 0xff00ff00, 0xff0000ff, 0xffffff00, 0xffff00ff, 0xff00ffff, 0xffff8800, 0xffff0088, 0xff88ff00, 0xff00ff88, 0xff8800ff, 0xff0088ff};
        
        public void draw(Canvas c) {
                int i = 0;
                for(String str : stringLeg){
                        c.fill(colors[i]);
                        int x = legPosX;
                        int y = legPosY + 13*i;
                        c.rect(x, y-6, 6, 6);
                        c.fill(0xffffffff);
                        c.text(str, x + 10, y);
                        i += 1;
                }
        }
        
        protected void loadLabels(java.io.File ascFile) throws NumberFormatException, IOException{
                BufferedReader r = new BufferedReader(new FileReader(ascFile));
                String line;
                while((line = r.readLine()) != null) {                  
                        this.stringLeg.add(line);
                }
                r.close();
        }
}