ｊ１００３ - プログラム倉庫

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;

class game1003 extends Frame implements ActionListener {

PixelGrabber pg;

   Button button1,button2; 
   Image img,img2; 
   int w=20, h=20; 
   boolean button1push = false;//画像読み込み[[ボタン]]
   boolean button2push = false;//処理開始ボタン
   int pixels[]=[[new]] int[w*h];//ピクセルデータ（入力）配列
   int pixels2[]=new int[w*h];//色変更したピクセル配列
    
   game1003() {  
       setLayout(new FlowLayout(FlowLayout.LEFT));
       img = createImage(w,h);//画像読み込み用 Image を生成
       button1 = new Button("画像読込"); 
       add(button1); 
       button1.addActionListener(this); 
       button2 = new Button("変色コピー"); 
       add(button2); 
       button2.addActionListener(this); 
}    
    
   public void paint(Graphics g) { 
      if(button1push)g.drawImage(img,20,[[100]],this);         
      if(button2push)g.drawImage(img2,100,100,this); 
}
        
   public void actionPerformed(ActionEvent e) { 

if(e.getSource() == button1){

    button1push = true; 
    button2push=false; 
    img = Toolkit.getDefaultToolkit().getImage("harada.jpg"); 
           pg = new PixelGrabber(img,0,0,w,h,pixels,0,w); 
           try{ 
               pg.grabPixels();
           }catch(InterruptedException ie){} 
           repaint(); 
}        
       //ボタン２が押された時の処理（ピクセルごとの処理）
       if(e.getSource() == button2){ 
    button2push = true; 
    button1push=false; 
        //単に読出して書戻し(やらなくとも同じ)  
           for(int i=0;i<w*h;i++){ 
               int p = pixels[i]; 
               int red = 0xff & (p>>16); 
               int green = 0xff & (p>>8); 
               int blue = 0xff & p; 
               pixels2[i] = (0xff000000 | red << 8 | green << 16 | blue);  
}            
    img2 = createImage(new MemoryImageSource(w, h, pixels2, 0, w)); 
    repaint(); 
}        
}    
   public static void main(String[] args) { 
       game1003 f = new game1003(); 
       f.setSize(300,300); 
       f.addWindowListener(new WindowAdapter(){public void  
        windowClosing(WindowEvent e){System.exit(0);}}); 
       f.setVisible(true); 
}    
}