wblauncher.java

来自「it is whiteboard sourse code」· Java 代码 · 共 42 行

package org.merlin.step.nov;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class WBLauncher extends Applet {
  Image image;
  Frame wb;
  
  public void init () {
    image = getImage (getCodeBase (), "wb.jpeg");
    enableEvents (AWTEvent.MOUSE_EVENT_MASK);
  }

  public void destroy () {
    if (wb != null)
      wb.dispose ();
  }

  public void paint (Graphics g) {
    g.drawImage (image, (getSize ().width - image.getWidth (this)) / 2,
                 (getSize ().height - image.getHeight (this)) / 2, this);
  }

  protected void processMouseEvent (MouseEvent e) {
    super.processMouseEvent (e);
    if (e.getID () == MouseEvent.MOUSE_PRESSED) {
      try {
        if (wb == null) {
          Class theClass = Class.forName ("org.merlin.step.nov.WB");
          wb = (Frame) theClass.newInstance ();
          wb.dispatchEvent (new ActionEvent (this, AWTEvent.RESERVED_ID_MAX + 1, ""));
        }
        wb.setVisible (true);
      } catch (Exception ex) {
        ex.printStackTrace ();
      }
    }
  }
}