tranimagecanvas.java~22~

在j2me当中缩放图片

import javax.microedition.lcdui.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class TranImageCanvas extends Canvas implements Runnable{
  int game_status = -1;

  boolean gameRun;
  Image img_png;
  Display display;

  public TranImageCanvas(Display display){
    try {
      this.display = display;
      System.out.println("111");
      game_status = 0;
      System.out.println("222");
      img_png = Image.createImage("/res/1.png");
      System.out.println("333");
      gameRun = true;
      System.out.println("444");
      new Thread(this).start();
      System.out.println("555");
    }
    catch (Exception ex) {
      ex.printStackTrace();
    }
  }
  public void keyPressed(int keycode)
  {
    if (keycode == -6)
    {
      //handleSoft1();
    }
    else if (keycode == -7)
    {
      //handleSoft2();
    }
    else if (keycode == -5) // function should be same as soft1
    {
      //handleSelect();
    }
    else if (keycode == -1 || keycode == 50)
    {
     // handleUp();
    }
    else if (keycode == -2 || keycode == 56)
    {
      //handleDown();
    }
    else if (keycode == -3 || keycode == 52)
    {
     // handleLeft();
    }
    else if (keycode == -4 || keycode == 54)
    {
      //handleRight();
    }else if(keycode == 51){
    //  handleKey3();
    }else if(keycode == 49){
    //  handleKey1();
    }
  }

  protected void paint(Graphics g) {
    /**@todo Implement this javax.microedition.lcdui.Canvas abstract method*/
    g.setColor(0);
    g.fillRect(0,0,176,220);
    if(game_status == 0)
    g.drawImage(img_png,0,0,0);
  }
  public void run()
  {
    try
    {
      while (gameRun)
      {
        if(game_status == 0){
          Thread.sleep(100);
        }
        //Thread.sleep(100);
        repaint();
      }
    }
    catch (Exception ex)
    {
    }
  }

}