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1
4 package demo.sharededitor.ui;
5
6 import java.awt.Color  ;
7 import java.awt.Graphics ;
8 import java.awt.Graphics2D ;
9 import java.awt.Shape ;
10 import java.awt.geom.Rectangle2D ;
11
12 import javax.swing.JComponent ;
13
14 import demo.sharededitor.events.IListListener;
15 import demo.sharededitor.models.BaseObject;
16 import demo.sharededitor.models.ObjectManager;
17
18 public final class Renderer
19 extends JComponent
20 implements IListListener
21 {
22 public static final long serialVersionUID = 0;
23
24 public Renderer()
25 {
26 objmgr = null;
27 }
28
29 private ObjectManager objmgr;
30
31 public void changed(Object source, Object obj)
32 {
33 this.objmgr = (ObjectManager)source;
34 this.repaint();
35 }
36
37 public void paint(Graphics g)
38 {
39 super.paint(g);
40 Graphics2D g2 = (Graphics2D )g.create();
41 g2.setBackground(Color.WHITE);
42 g2.clearRect(0, 0, getSize().width, getSize().height);
43
44 if (objmgr == null)
45 return;
46
47 BaseObject[] objList = objmgr.list();
48 for(int i=0; i<objList.length; i++)
49 {
50 BaseObject obj = objList[i];
51 obj.draw(g2, objmgr.isGrabbed(obj));
52 }
53
54 Shape border = new Rectangle2D.Double (0, 0, getWidth() - 1, getHeight() - 1);
55 g2.setColor(Color.DARK_GRAY);
56 g2.draw(border);
57 }
58 }
59 |
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Java API By Example, From Geeks To Geeks.