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Java > Open Source Codes > edu > rice > cs > util > swing > LayeredIcon


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33
34 package edu.rice.cs.util.swing;
35
36 import javax.swing.*;
37 import java.awt.*;
38
39 public class LayeredIcon implements Icon {
40   private Icon[] _layers;
41   private int[] _xoffs;
42   private int[] _yoffs;
43   private int _w=0;
44   private int _h=0;
45   public LayeredIcon(Icon[] layers, int[] x, int[] y) {
46     _layers = layers;
47     _xoffs = x;
48     _yoffs = y;
49     if (layers.length != x.length || x.length != y.length) {
50       throw new IllegalArgumentException JavaDoc("Array lengths don't match");
51     }
52     _w = 0; _h = 0;
53     for (int i=0; i < layers.length; i++) {
54       if (layers[i] != null) {
55         _w = Math.max(_w, layers[i].getIconWidth() + x[i]);
56         _h = Math.max(_h, layers[i].getIconHeight() + x[i]);
57       }
58     }
59   }
60   public int getIconHeight(){
61     return _h;
62   }
63   public int getIconWidth(){
64     return _w;
65   }
66   public void paintIcon(Component c, Graphics g, int x, int y){
67     for (int i=0; i < _layers.length; i++) {
68       Icon ico = _layers[i];
69       if (ico != null) _layers[i].paintIcon(c,g, x+_xoffs[i], y+_yoffs[i]);
70     }
71   }
72   
73   public Icon[] getLayers(){
74     return _layers;
75   }
76   public int[] getXOffsets() {
77     return _xoffs;
78   }
79   public int[] getYOffsets(){
80     return _xoffs;
81   }
82 }
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