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


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33
34 package edu.rice.cs.util.swing;
35
36 import javax.swing.*;
37 import java.awt.*;
38
39 /** This icon takes the given icon and centers it into a canvas of the given width and height. This is like a canvas
40  * resize for Icons. If the new size is smaller than the icon's size, then the edges of the given icon are clipped.
41  */

42 public class CenteredIcon implements Icon {
43   private Icon _base;
44   private int _w=0;
45   private int _h=0;
46   public CenteredIcon(Icon base, int width, int height) {
47     _base = base;
48     _w = width;
49     _h = height;
50   }
51   public int getIconHeight(){
52     return _h;
53   }
54   public int getIconWidth(){
55     return _w;
56   }
57   public void paintIcon(Component c, Graphics g, int x, int y){
58     Shape oldClip = g.getClip();
59     g.setClip(x, y, _w, _h);
60     int centerX = x + (_w/2);
61     int centerY = y + (_h/2);
62     int subRadX = _base.getIconWidth() / 2;
63     int subRadY = _base.getIconHeight() / 2;
64     _base.paintIcon(c, g, centerX - subRadX, centerY - subRadY);
65     g.setClip(oldClip);
66   }
67   public Icon getBaseIcon() { return _base; }
68 }
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