www.pudn.com > j2me_Mario.rar > LPProgressThread.java

/** 
 * 
Title: lipeng
 
 * 
Description: 
 * You cannot remove this copyright and notice. 
 * You cannot use this file without the express permission of the author. 
 * All Rights Reserved
 
 * 
Copyright: lizhenpeng (c) 2004
 
 * 
Company: LP&P
 
 * @author lizhenpeng 
 * @version 1.0.3 
 * 
 
 * Revise History 
 * 2004.07.15 In MobilePhone the progress time too small change to 300 v1.0.1 
 * 2004.07.15 Change thread's priority to min_priority V1.0.2 
 * 2004.07.21 Change some public member to private V1.0.3 
 * 
 
 */ 
 
 
package lipeng; 
 
import javax.microedition.lcdui.*; 
import javax.microedition.midlet.MIDlet; 
 
public class LPProgressThread extends Canvas 
  implements Runnable 
{ 
  public LPProgressThread(MIDlet midlet) 
  { 
    //setFullScreenMode(true); 
    loadProgressIsOver = false; 
    this.midlet = midlet; 
    this.width = this.getWidth(); 
    this.height = this.getHeight(); 
  } 
  public void paint(Graphics g) 
  { 
    drawGaugeScreen(g); 
  } 
  private void drawGaugeScreen(Graphics g) 
   { 
     g.setColor(255,255,255); 
     g.fillRect(0,0,width,height); 
 
     g.setColor(255,0,0); 
     g.drawString("游戏装载中...",(width-font.stringWidth("游戏装载中..."))/2+10, 
                  height/2-25,g.LEFT|g.TOP); 
 
     g.setColor(255,0,0); 
     g.drawRect(10,height/2,width-20,20); 
     g.setColor(0,0,255); 
     g.fillRect(10+1,height/2+1,gaugeCnt*(width-20)/PROGRESS_END-1,20-1); 
 
     g.setColor(255,0,0); 
 
     g.drawString(String.valueOf(gaugeCnt*100/PROGRESS_END),(width-font.stringWidth("000"))/2, 
                  height/2+4,g.LEFT|g.TOP); 
     g.drawString("%",(width-font.stringWidth("000"))/2+font.stringWidth("00"), 
                  height/2+4,g.LEFT|g.TOP); 
 
   } 
 
  public void run() 
  { 
    try 
   { 
     Thread currentThread = Thread.currentThread(); 
     while (currentThread == progressThread) 
     { 
       startTime = System.currentTimeMillis(); 
       repaint(0, 0, width, height); 
       serviceRepaints(); 
       gaugeCnt += progressInterval; 
       if(((LPIGetCanvas)midlet).getCanvas()!=null) 
       { 
         progressInterval +=1; 
       } 
       if(gaugeCnt>=PROGRESS_END) 
       { 
         if(((LPIGetCanvas)midlet).getCanvas()==null) 
         { 
           gaugeCnt -= progressInterval; 
         } 
         else 
         { 
           loadProgressIsOver=true; 
           Display.getDisplay(midlet).setCurrent(((LPIGetCanvas)midlet). 
                                                 getCanvas()); 
           ((LPIGameStart)((LPIGetCanvas)midlet).getCanvas()).start(); 
           break; 
         } 
       } 
       endTime = System.currentTimeMillis(); 
       if ( (endTime - startTime) < FRAME_TIME) 
       { 
         Thread.sleep(FRAME_TIME - (endTime - startTime)); 
       } 
     } 
   } 
   catch (InterruptedException ie) 
   { 
     System.out.println(ie.toString()); 
   } 
  } 
  public void start() 
  { 
    progressThread = new Thread(this); 
    progressThread.setPriority(Thread.MIN_PRIORITY+1); 
    progressThread.start(); 
  } 
  public void stop() 
  { 
    progressThread = null; 
  } 
  public boolean loadProgressIsOver = false; 
  private volatile Thread progressThread = null; 
  private int width; 
  private int height; 
  private long startTime; 
  private long endTime; 
  private static final int FRAME_TIME = 200; 
  private Font font = Font.getFont(Font.FACE_MONOSPACE, Font.STYLE_BOLD, 
                                   Font.SIZE_LARGE); 
 
  public int gaugeCnt; 
  private int progressInterval = 1; 
  private static final int PROGRESS_END=150; 
  private MIDlet midlet; 
}