/*****************************************
影像處理基礎
*************************************************/
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.io.*;
import javax.imageio.*;
import java.awt.image.*;
public class ui44a extends JFrame implements ActionListener
{
    Container c;
    JLabel lab;
    JButton bot,bot1;
    Image img=null;
    ImageIcon icon=null;
    java.awt.image.BufferedImage bi;
    String fn1;
    int index,more,R,G,B,i,cpt;
    int flag=0;
    public ui44a()   //建構元
    {
        super("影像處理基礎");
        c=getContentPane();
        setSize(640,480);
        bot=new JButton("讀入影像");
        bot1=new JButton("處理");
        icon=new ImageIcon();
        lab=new JLabel(icon);
        c.setLayout(new FlowLayout(FlowLayout.CENTER));//設定為流水版面設定
        //注意加入元件的順序
        c.add(bot1);
        c.add(bot);
        c.add(lab);
        bot.addActionListener(this);//設定自己為bot0按鈕的傾聽者
        setVisible(true);
    }
    public void paint(Graphics g)  //真正的畫圖設定
    {
	    super.paint(g);//畫出元件
    }
         public void actionPerformed(ActionEvent e) //按鈕事件的處理方法
         { 
                   
             if (e.getSource()==bot)
             {
                   JFileChooser jfc = new JFileChooser("./");
                   jfc.setFileSelectionMode(JFileChooser.FILES_ONLY);
                   int   rst = jfc.showOpenDialog(this);
                  if(rst==JFileChooser.APPROVE_OPTION)
                      fn1 = jfc.getSelectedFile().toString();
                  try
                  {
                      bi=ImageIO.read(new File(fn1));
                      icon.setImage((Image)bi);
                  }
                   catch (Exception ee)
                  {
                      System.out.println(ee.toString());
                  } 
                 repaint();
             }
             else if (e.getSource()==bot1)
             {
             }
         }

  /***主程式***/
    public static void main(String args[]) //程式起點
    {
        ui44a app=new ui44a(); //畫圖
        app.addWindowListener(new WindowAdapter(){ //匿名內部類別
            public void windowClosing(WindowEvent e)
            {
                System.exit(0);
            }
        }); //處理視窗關閉要求
    }
}