spleshwindow.java~2~

Java编程100例,提供了很多经典实例来说明Java

package jspleshwindowdemo;

import java.awt.*;


/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author unascribed
 * @version 1.0
 */

public class SpleshWindow extends Window {
  private String statusStr=null;
/** Logo image.
 */
  private Image logoImg=null;


  public SpleshWindow(Frame owner) {
    super( owner );
    // load image
    logoImg=getToolkit().getImage( getClass().getResource( "images\\splesh.jpg" ) );
    // wait for image is loaded.
    java.awt.MediaTracker tracker=new java.awt.MediaTracker( this );
    tracker.addImage( logoImg , 0 );
    try{tracker.waitForAll();}catch ( InterruptedException e ){e.printStackTrace();}
    // set splash window to fit the image size
    setLocation( getToolkit().getScreenSize().width/2 - logoImg.getWidth(this)/2 , getToolkit().getScreenSize().height/2 - logoImg.getHeight(this)/2  );
    setSize( logoImg.getWidth(this) , logoImg.getHeight(this) );

  }
  public void paint(Graphics g) {
    /**@todo Override this java.awt.Component method*/
    super.paint(g);
    if ( logoImg!=null )
    g.drawImage( logoImg , 0 , 0 , this );
    if ( statusStr!=null )
    g.drawString( statusStr , 40 , getSize().height-20 );
  }
  public void setStatus( String status ){
    statusStr=status;
    // because repaint will blink, so I draw it myself
    //repaint();
    paint( getGraphics() );
    }
}