J2ME小特效之波浪字體

/*
 * J2MEDEV
 *
 * [email protected]
 */
import javax.microedition.lcdui.*;

/**
 * 進行低階繪圖的Canvas類
 *
 * @author aflylove
 * @version 1.0
 */
class DrawCanvas extends Canvas implements Runnable{
 
 
private Image img;
 /** 構造函數 */
 private String str=new String("PRESS 5");
 private int[] ak={0,0,0,0,0,0,0,1,2,3,3,2,1,0,0,0,0,0,0,0};
 boolean kaishi=true;
 private int k=6;
 public DrawCanvas (){
 
  new Thread(this).start();
                 }
  
                
  protected void paint(Graphics g){
   g.setColor(0x00ffffff);
   g.fillRect(0,0,getWidth(),getHeight());
   g.setColor(0x00000000);
   
   for(int i=0;i<str.length();i++){
     g.drawString(str.substring(i,i+1),20+i*7,10-ak[k-i],0);
     g.drawString(str.substring(i,i+1),21+i*7,11-ak[k-i],0);//加重字體7是字體寬度
   }
   
 }
 
   public void run(){
    while(kaishi){
     try {
    repaint();    //再描繪
    Thread.sleep(70);  //等待一定時間
       k++;
    if(k>(ak.length-1)) k=6;   
    }
   catch(InterruptedException e){}
    }
    
   }
}