VVPanel


1   /*
2    * VVPanel.java 
3    * 
4    * Created on 31 May 2003, 02:53 
5    */
6   
7   package com.thoughtriver.open.vectorvisuals;
8   
9   import java.awt.*;
10  
11  import javax.swing.*;
12  
13  /**
14   * This is a <CODE>JPanel</CODE>-based area upon which the graphics used by
15   * the Vector Visuals system can be painted. An instance of this (or any other
16   * <CODE>VVViewPane</CODE> implementation) must be provided to the <CODE>VVDisplay</CODE>
17   * that is being used to control the vector world.
18   * 
19   * @author Brandon Franklin
20   * @version $Date: 2006/11/25 09:18:36 $
21   */
22  public class VVPanel extends JPanel implements VVViewPane {
23  
24      private static final long serialVersionUID = 3833749863039906100L;
25  
26      /** The <CODE>VVDisplay</CODE> that is controlling the vector world */
27      private VVDisplay vvDisplay = null;
28  
29      /**
30       * Creates a new instance of <CODE>VVPanel</CODE>.
31       */
32      public VVPanel() {
33      }
34  
35      /**
36       * {@inheritDoc}
37       */
38      public void setVVDisplay(final VVDisplay vvDisplay) {
39          this.vvDisplay = vvDisplay;
40      }
41  
42      /**
43       * Causes the <CODE>VVPanel</CODE> to render itself. In the Vector Visuals
44       * system, this method is called quite frequently in order to facilitate
45       * animations.
46       * 
47       * @param g the <CODE>Graphics</CODE> context of the panel
48       */
49      @Override  
50      protected synchronized void paintComponent(final Graphics g) {
51          super.paintComponent(g);
52          if (vvDisplay != null) {
53              vvDisplay.paint(g);
54          }
55      }
56  
57  }
58

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