import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;

public class open3 extends JFrame implements ActionListener{
  
  private Image m = null;
  private Image m2 = null;
  private File dir = null; //*

  JPanel contentPane;
  JScrollPane jScrollPane1 = new JScrollPane();
  JScrollPane jScrollPane2 = new JScrollPane();
  //static FileDialog dialog;     //宣告档案对话方块变数
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  MenuBar menubar1;     //宣告功能表列变数
  Menu mnuFile;     //宣告功能表变数
  MenuItem itmOpen1, itmExit, itmSave;     //宣告功能项变数
  java.awt.Image iconimg1;
  java.awt.Image iconimg2;
  
  //Construct the frame
  public open3() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(null);
    this.setSize(new Dimension(700, 500)); //JFrame大小
    this.setTitle("open");
  
    jScrollPane1.setBounds(new Rectangle(30, 30, 300, 240)); //内框位置+大小
    contentPane.add(jScrollPane1, null);
    jScrollPane1.getViewport().add(jLabel1, null);
           
    jScrollPane2.setBounds(new Rectangle(350, 30, 300, 240)); //内框位置+大小
    contentPane.add(jScrollPane2, null);
    jScrollPane2.getViewport().add(jLabel2, null);
    
    menubar1 = new MenuBar();     //建立功能表列
    mnuFile = new Menu("File");     //建立档案功能表
    menubar1.add(mnuFile);     //加入档案功能表
    itmOpen1 = new MenuItem("开启档案");     //建立开启旧档功能项
    itmSave = new MenuItem("Save"); //建立储存档案功能项
    itmExit = new MenuItem("EXIT");     //建立结束功能项
    mnuFile.add(itmOpen1);     //加入开启旧档到档案功能表
    mnuFile.add(itmSave); //加入存档到档案功能表
    mnuFile.add(itmExit);     //加入结束到档案功能表
    //dialog = new FileDialog(this, "开启旧档");     //建立对话方块
    itmOpen1.addActionListener(this);
    //dialog = new FileDialog(this, "另存新档"); //建立对话方块
    itmSave.addActionListener(this);
    itmExit.addActionListener(this);//加入结束功能项动作监听
    setMenuBar(menubar1);     //设定视窗功能表列

  }
//-----------------------------------------

  public void actionPerformed(ActionEvent e) {     //执行视窗Action事件方法
    if(e.getSource() == itmOpen1){ 
            //dialog.setVisible(true);//显示对话方块
            loadImage1();
    }
    else if(e.getSource() == itmSave){ 
      //dialog.setVisible(true);//显示对话方块
      saveImage1();
    }
      else if(e.getSource() == itmExit) {     //若为结束功能项事件
      System.exit(0);     //结束并关闭视窗
    }
  }
    
  public void loadImage1(){
    JFileChooser jfc = new JFileChooser();//选择档案
    jfc.setDialogTitle("Choose Image");
    //set current directory
    if(dir != null){
      jfc.setCurrentDirectory(dir);
    }
    FileNameExtensionFilter filter = 
        new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif");

    jfc.addChoosableFileFilter(filter);
    int returnVal = jfc.showOpenDialog(this);
    //get image name and path
    if(returnVal == JFileChooser.APPROVE_OPTION) {
      String imgFile = jfc.getSelectedFile().getName();
      dir = jfc.getCurrentDirectory();
      //create image using filename
      Toolkit tk = Toolkit.getDefaultToolkit();
      m = tk.getImage(imgFile);
      ImageIcon tempIcon1 = new ImageIcon(m);
      iconimg1=tempIcon1.getImage();
      jLabel1.setIcon(tempIcon1);
      
      m2 = tk.getImage(imgFile);
      ImageIcon tempIcon2 = new ImageIcon(m2);
      iconimg2 = tempIcon2.getImage();
      jLabel2.setIcon(tempIcon2);
      
    }
  }
     
  public void saveImage1(){
    JFileChooser jfc = new JFileChooser();//选择档案
    jfc.setDialogTitle("Choose Image");
    //set current directory
    if(dir != null){
      jfc.setCurrentDirectory(dir);
    }
    FileNameExtensionFilter filter = 
        new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif");

    jfc.addChoosableFileFilter(filter);
    int returnVal = jfc.showSaveDialog(this);
    if(returnVal == JFileChooser.APPROVE_OPTION) {
      System.out.println("You chose to open this file: " +
          jfc.getSelectedFile().getName());
    }
  }
  
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
    System.exit(0);
    }
  }

  public static void main(String[] args) {
    try {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
      open3 _frame = new open3();
      //Validate frames that have preset sizes
      //Pack frames that have useful preferred size info, e.g. from their layout
      _frame.validate();
      //Center the window
      Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
      Dimension frameSize = _frame.getSize();
    
      if (frameSize.height > screenSize.height) {
        frameSize.height = screenSize.height;
      }
      if (frameSize.width > screenSize.width) {
        frameSize.width = screenSize.width;
      }
      _frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
      _frame.setVisible(true);
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
}

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;

public class Open3 extends JFrame implements ActionListener{
    private Image m = null;
    private Image m2 = null;
    private File dir = null; //*

    JPanel contentPane;
    JScrollPane jScrollPane1 = new JScrollPane();
    JScrollPane jScrollPane2 = new JScrollPane();
    //static FileDialog dialog;     //宣告档案对话方块变数
    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    MenuBar menubar1;     //宣告功能表列变数
    Menu mnuFile;     //宣告功能表变数
    MenuItem itmOpen1, itmExit, itmSave;     //宣告功能项变数
    java.awt.Image iconimg1;
    java.awt.Image iconimg2;
  
    //Construct the frame
    public Open3() {
        jbInit();
        this.setLocationRelativeTo(null);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }

    //Component initialization
    private void jbInit() {
        contentPane = (JPanel) this.getContentPane();
        contentPane.setLayout(null);
    
        this.setSize(new Dimension(700, 500)); //JFrame大小
        this.setTitle("image view");
  
        jScrollPane1.setBounds(new Rectangle(30, 30, 300, 240)); //内框位置+大小
        contentPane.add(jScrollPane1, null);
        jScrollPane1.getViewport().add(jLabel1, null);
           
        jScrollPane2.setBounds(new Rectangle(350, 30, 300, 240)); //内框位置+大小
        contentPane.add(jScrollPane2, null);
        jScrollPane2.getViewport().add(jLabel2, null);
    
        menubar1 = new MenuBar();     //建立功能表列
        mnuFile = new Menu("档案");     //建立档案功能表
        menubar1.add(mnuFile);     //加入档案功能表
        itmOpen1 = new MenuItem("开启档案");     //建立开启旧档功能项
        itmSave = new MenuItem("储存档案"); //建立储存档案功能项
        itmExit = new MenuItem("结束");     //建立结束功能项
        mnuFile.add(itmOpen1);     //加入开启旧档到档案功能表
        mnuFile.add(itmSave); //加入存档到档案功能表
        mnuFile.add(itmExit);     //加入结束到档案功能表
        itmOpen1.addActionListener(this);
        itmSave.addActionListener(this);
        itmExit.addActionListener(this);//加入结束功能项动作监听
        setMenuBar(menubar1);     //设定视窗功能表列
    }
    
    public void actionPerformed(ActionEvent e) {     //执行视窗Action事件方法
        if(e.getSource() == itmOpen1){ 
            loadImage1();
        }
        else if(e.getSource() == itmSave){ 
            saveImage1();
        }
        else if(e.getSource() == itmExit) {     //若为结束功能项事件
            System.exit(0);     //结束并关闭视窗
        }
    }
    
    public void loadImage1(){
        JFileChooser jfc = new JFileChooser();//选择档案
        jfc.setDialogTitle("Choose Image");
        //set current directory
        if(dir != null){
            jfc.setCurrentDirectory(dir);
        }
        FileNameExtensionFilter filter = 
            new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif");

        jfc.addChoosableFileFilter(filter);
        int returnVal = jfc.showOpenDialog(this);
        //get image name and path
        if(returnVal == JFileChooser.APPROVE_OPTION) {
            String imgFile = jfc.getCurrentDirectory() + "\\" + jfc.getSelectedFile().getName();
            dir = jfc.getCurrentDirectory();
            //create image using filename
            Toolkit tk = Toolkit.getDefaultToolkit();
            m = tk.getImage(imgFile);
            ImageIcon tempIcon1 = new ImageIcon(imgFile);
            iconimg1=tempIcon1.getImage();
            jLabel1.setIcon(tempIcon1);
      
            m2 = tk.getImage(imgFile);
            ImageIcon tempIcon2 = new ImageIcon(imgFile);
            iconimg2 = tempIcon2.getImage();
            jLabel2.setIcon(tempIcon2);
            
            jLabel1.updateUI();
            jLabel2.updateUI();
        }
    }
     
    public void saveImage1(){
        JFileChooser jfc = new JFileChooser();//选择档案
        jfc.setDialogTitle("Choose Image");
        //set current directory
        if(dir != null){
            jfc.setCurrentDirectory(dir);
        }
        FileNameExtensionFilter filter = 
            new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif");

        jfc.addChoosableFileFilter(filter);
        int returnVal = jfc.showSaveDialog(this);
        if(returnVal == JFileChooser.APPROVE_OPTION) {
            System.out.println("You chose to open this file: " +
            jfc.getSelectedFile().getName());
        }
    }
  
    public static void main(String[] args) {
        new Open3().setVisible(true);
    }
}

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import javax.imageio.*;
import javax.imageio.stream.ImageOutputStream;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;

public class Open3 extends JFrame implements ActionListener{
    private BufferedImage m = null; //编辑中的缓冲影像(原始图样用做对照)
    private BufferedImage m2 = null; //编辑中的缓冲影像(未来可能为套用过效果的)
    private File dir = null; //以开启的档案路径

    JPanel contentPane; 
    JScrollPane jScrollPane1 = new JScrollPane();
    JScrollPane jScrollPane2 = new JScrollPane();
    //static FileDialog dialog;     //宣告档案对话方块变数
    JLabel jLabel1 = new JLabel();
    JLabel jLabel2 = new JLabel();
    MenuBar menubar1;     //宣告功能表列变数
    Menu mnuFile;     //宣告功能表变数
    MenuItem itmOpen1, itmExit, itmSave;     //宣告功能项变数
  
    //Construct the frame
    public Open3() {
        jbInit();
        this.setLocationRelativeTo(null); //视窗置中
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //如果点[X]就视同关闭程式
    }

    //Component initialization
    private void jbInit() {
        contentPane = (JPanel) this.getContentPane(); //取得Fram的内容层
        contentPane.setLayout(null); //设定布局为NULL
    
        this.setSize(new Dimension(700, 500)); //JFrame大小
        this.setTitle("image view"); //视窗标题
  
        jScrollPane1.setBounds(new Rectangle(30, 30, 300, 240)); //内框位置+大小
        contentPane.add(jScrollPane1, null);
        jScrollPane1.getViewport().add(jLabel1, null);
           
        jScrollPane2.setBounds(new Rectangle(350, 30, 300, 240)); //内框位置+大小
        contentPane.add(jScrollPane2, null);
        jScrollPane2.getViewport().add(jLabel2, null);
    
        menubar1 = new MenuBar();     //建立功能表列
        mnuFile = new Menu("档案");     //建立档案功能表
        menubar1.add(mnuFile);     //加入档案功能表
        itmOpen1 = new MenuItem("开启档案");     //建立开启旧档功能项
        itmSave = new MenuItem("储存档案"); //建立储存档案功能项
        itmExit = new MenuItem("结束");     //建立结束功能项
        mnuFile.add(itmOpen1);     //加入开启旧档到档案功能表
        mnuFile.add(itmSave); //加入存档到档案功能表
        mnuFile.add(itmExit);     //加入结束到档案功能表
        itmOpen1.addActionListener(this);
        itmSave.addActionListener(this);
        itmExit.addActionListener(this);//加入结束功能项动作监听
        setMenuBar(menubar1);     //设定视窗功能表列
    }
    
    public void actionPerformed(ActionEvent e) {     //执行视窗Action事件方法
        if(e.getSource() == itmOpen1){ 
            loadImage1();
        }
        else if(e.getSource() == itmSave){ 
            saveImage1();
        }
        else if(e.getSource() == itmExit) {     //若为结束功能项事件
            System.exit(0);     //结束并关闭视窗
        }
    }
    
    public void loadImage1(){
        JFileChooser jfc = new JFileChooser(); //档案选择对话框
        jfc.setDialogTitle("开启档案"); //设定对话框标题
        if(dir != null){
            jfc.setCurrentDirectory(dir); //如果有路径记录就从路径位置
        }

        jfc.addChoosableFileFilter(new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif")); //加入档名过虑器
        int returnVal = jfc.showOpenDialog(this); //传回值
        //get image name and path
        if(returnVal == JFileChooser.APPROVE_OPTION) { //如果对话视窗是按了[OK]或[确定]之类的按钮结束
            try {
                String imgFile = jfc.getCurrentDirectory() + "\\" + jfc.getSelectedFile().getName(); //档案完整路径
                dir = jfc.getCurrentDirectory(); //储存路径记录

                this.m = ImageIO.read(jfc.getSelectedFile()); //读入影像
                ImageIcon tempIcon1 = new ImageIcon(imgFile);
                jLabel1.setIcon(tempIcon1);

                this.m2 = ImageIO.read(jfc.getSelectedFile()); //读入影像
                ImageIcon tempIcon2 = new ImageIcon(imgFile);
                jLabel2.setIcon(tempIcon2);

                jLabel1.updateUI(); //更新画面
                jLabel2.updateUI(); //更新画面
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
     
    public void saveImage1(){
        JFileChooser jfc = new JFileChooser(); //选择档案
        jfc.setDialogTitle("储存档案"); //设定对话框标题
        //set current directory
        if(dir != null){
            jfc.setCurrentDirectory(dir); //储存路径记录
        }

        //存档的时候要讲名是那种档案
        jfc.addChoosableFileFilter(new FileNameExtensionFilter("jpeg file", "jpg")); //加入档名过虑器
        jfc.addChoosableFileFilter(new FileNameExtensionFilter("gif file", "gif")); //加入档名过滤器
        int returnVal = jfc.showSaveDialog(this); //储存传回值
        if(returnVal == JFileChooser.APPROVE_OPTION) { //如果对话视窗是按了[OK]或[确定]之类的按钮结束
            String fileType = jfc.getFileFilter().getDescription(); //档案类型
            fileType = (fileType.equals("jpeg file") ? fileType = "jpg" : "gif"); //转成3字元附档名
            Iterator writers = ImageIO.getImageWritersBySuffix(fileType); //依据档案类型取得图形写入器
            ImageWriter writer = (ImageWriter) writers.next();
            String fullFileName = jfc.getCurrentDirectory() + "\\" + jfc.getSelectedFile().getName(); //完整档名
            if(!fullFileName.endsWith(fileType)) fullFileName = fullFileName + "." + fileType; //如果使用者没有键入付档名则自动补上
            File f = new File(fullFileName); //包装成档案物件
            try {
                ImageOutputStream ios = ImageIO.createImageOutputStream(f); //建立图形输出串流
                writer.setOutput(ios); //设定图形输出串流
                writer.write(this.m2); //将图形写入
                ios.close(); //关闭档案串流
                //System.out.println("You chose to open this file: " + jfc.getSelectedFile().getName());
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }
  
    public static void main(String[] args) {
        new Open3().setVisible(true);
    }
}

/*
 * MainJFrame.java
 *
 * Created on 2008年9月25日, 下午 4:57
 */

import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;
import javax.swing.*;
import javax.swing.filechooser.FileNameExtensionFilter;

/**
 *
 * @author  Overing Zero
 */
public class MainJFrame extends JFrame implements AdjustmentListener {
    private BufferedImage originImage = null; //编辑中的缓冲影像(原始图样用做对照)
    private BufferedImage m2 = null; //编辑中的缓冲影像(未来可能为套用过效果的)
    private File dir = null; //以开启的档案路径

    /** Creates new form MainJFrame */
    public MainJFrame() {
        initComponents();
        
        this.setLocationRelativeTo(null); //视窗置中
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
        java.awt.GridBagConstraints gridBagConstraints;

        jLabel3 = new javax.swing.JLabel();
        before_JScrollPane = new javax.swing.JScrollPane();
        beforeImage_JLabel = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        after_JScrollPane = new javax.swing.JScrollPane();
        afterImage_JLabel = new javax.swing.JLabel();
        jPanel1 = new javax.swing.JPanel();
        addBlack_JButton = new javax.swing.JButton();
        addW_JButton = new javax.swing.JButton();
        addRed_JButton = new javax.swing.JButton();
        addGreen_JButton = new javax.swing.JButton();
        addBlue_JButton = new javax.swing.JButton();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        save_JMenuItem = new javax.swing.JMenuItem();
        load_JMenuItem = new javax.swing.JMenuItem();
        jSeparator1 = new javax.swing.JSeparator();
        exit_JMenuItem = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenuItem2 = new javax.swing.JMenuItem();
        jSeparator2 = new javax.swing.JSeparator();
        jMenu4 = new javax.swing.JMenu();
        jMenu3 = new javax.swing.JMenu();
        about_JMenuItem = new javax.swing.JMenuItem();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Image Editer");
        setMinimumSize(new java.awt.Dimension(400, 300));
        getContentPane().setLayout(new java.awt.GridBagLayout());

        jLabel3.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel3.setText("Before");
        jLabel3.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.weightx = 1.0;
        getContentPane().add(jLabel3, gridBagConstraints);

        before_JScrollPane.getHorizontalScrollBar().addAdjustmentListener(new AdjustmentListener(){
            public void adjustmentValueChanged(AdjustmentEvent e) {
                MainJFrame.this.after_JScrollPane.getHorizontalScrollBar().setValue(e.getValue());
            }
        });
        before_JScrollPane.getVerticalScrollBar().addAdjustmentListener(new AdjustmentListener(){
            public void adjustmentValueChanged(AdjustmentEvent e) {
                MainJFrame.this.after_JScrollPane.getVerticalScrollBar().setValue(e.getValue());
            }
        });
        before_JScrollPane.setViewportView(beforeImage_JLabel);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.gridheight = java.awt.GridBagConstraints.RELATIVE;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        getContentPane().add(before_JScrollPane, gridBagConstraints);

        jLabel4.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
        jLabel4.setText("After");
        jLabel4.setBorder(javax.swing.BorderFactory.createEtchedBorder());
        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 0;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        gridBagConstraints.weightx = 1.0;
        getContentPane().add(jLabel4, gridBagConstraints);

        after_JScrollPane.getHorizontalScrollBar().addAdjustmentListener(this);
        after_JScrollPane.getVerticalScrollBar().addAdjustmentListener(this);
        after_JScrollPane.setViewportView(afterImage_JLabel);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 1;
        gridBagConstraints.gridy = 1;
        gridBagConstraints.gridheight = java.awt.GridBagConstraints.RELATIVE;
        gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
        gridBagConstraints.weightx = 1.0;
        gridBagConstraints.weighty = 1.0;
        getContentPane().add(after_JScrollPane, gridBagConstraints);

        jPanel1.setLayout(new java.awt.GridLayout(1, 5, 2, 2));

        addBlack_JButton.setText("黑");
        addBlack_JButton.setMargin(new java.awt.Insets(2, 2, 2, 2));
        addBlack_JButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                toolButtonsActionPerformed(evt);
            }
        });
        jPanel1.add(addBlack_JButton);

        addW_JButton.setText("白");
        addW_JButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                toolButtonsActionPerformed(evt);
            }
        });
        jPanel1.add(addW_JButton);

        addRed_JButton.setText("红");
        addRed_JButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                toolButtonsActionPerformed(evt);
            }
        });
        jPanel1.add(addRed_JButton);

        addGreen_JButton.setText("绿");
        addGreen_JButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                toolButtonsActionPerformed(evt);
            }
        });
        jPanel1.add(addGreen_JButton);

        addBlue_JButton.setText("蓝");
        addBlue_JButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                toolButtonsActionPerformed(evt);
            }
        });
        jPanel1.add(addBlue_JButton);

        gridBagConstraints = new java.awt.GridBagConstraints();
        gridBagConstraints.gridx = 0;
        gridBagConstraints.gridy = 2;
        gridBagConstraints.gridwidth = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.gridheight = java.awt.GridBagConstraints.REMAINDER;
        gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL;
        getContentPane().add(jPanel1, gridBagConstraints);

        jMenu1.setText("档案");

        save_JMenuItem.setText("开启档案");
        save_JMenuItem.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                open_JMenuItemActionPerformed(evt);
            }
        });
        jMenu1.add(save_JMenuItem);

        load_JMenuItem.setText("储存档案");
        load_JMenuItem.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                save_JMenuItemActionPerformed(evt);
            }
        });
        jMenu1.add(load_JMenuItem);
        jMenu1.add(jSeparator1);

        exit_JMenuItem.setText("离开");
        exit_JMenuItem.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                exit_JMenuItemActionPerformed(evt);
            }
        });
        jMenu1.add(exit_JMenuItem);

        jMenuBar1.add(jMenu1);

        jMenu2.setText("编辑");

        jMenuItem1.setText("Undo");
        jMenu2.add(jMenuItem1);

        jMenuItem2.setText("Redo");
        jMenu2.add(jMenuItem2);
        jMenu2.add(jSeparator2);

        jMenu4.setText("ActionLog");
        jMenu2.add(jMenu4);

        jMenuBar1.add(jMenu2);

        jMenu3.setText("关于");

        about_JMenuItem.setText("关于本程式");
        about_JMenuItem.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                about_JMenuItemActionPerformed(evt);
            }
        });
        jMenu3.add(about_JMenuItem);

        jMenuBar1.add(jMenu3);

        setJMenuBar(jMenuBar1);

        pack();
    }// </editor-fold>

    private void open_JMenuItemActionPerformed(java.awt.event.ActionEvent evt) {                                               
        JFileChooser jfc = new JFileChooser(); //档案选择对话框
        jfc.setDialogTitle("开启档案"); //设定对话框标题
        if(dir != null) jfc.setCurrentDirectory(dir); //如果有路径记录就从路径位置

        jfc.addChoosableFileFilter(new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif")); //加入档名过虑器
        int returnVal = jfc.showOpenDialog(this); //传回值
        //get image name and path
        if(returnVal == JFileChooser.APPROVE_OPTION) { //如果对话视窗是按了[OK]或[确定]之类的按钮结束
            try {
                String imgFile = jfc.getCurrentDirectory() + "\\" + jfc.getSelectedFile().getName(); //档案完整路径
                dir = jfc.getCurrentDirectory(); //储存路径记录

                this.originImage = ImageIO.read(jfc.getSelectedFile()); //读入影像
                ImageIcon tempIcon1 = new ImageIcon(this.originImage);
                this.beforeImage_JLabel.setIcon(tempIcon1);

                this.m2 = ImageIO.read(jfc.getSelectedFile()); //读入影像
                ImageIcon tempIcon2 = new ImageIcon(this.m2);
                this.afterImage_JLabel.setIcon(tempIcon2);
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        
    }                                              

    private void save_JMenuItemActionPerformed(java.awt.event.ActionEvent evt) {                                               
        JFileChooser jfc = new JFileChooser(); //选择档案
        jfc.setDialogTitle("储存档案"); //设定对话框标题
        if(dir != null) jfc.setCurrentDirectory(dir); //如果有路径记录就从路径位置

        //存档的时候要讲明那种档案
        jfc.addChoosableFileFilter(new FileNameExtensionFilter("jpeg file", "jpg")); //加入档名过虑器
        jfc.addChoosableFileFilter(new FileNameExtensionFilter("gif file", "gif")); //加入档名过滤器
        int returnVal = jfc.showSaveDialog(this); //储存传回值
        if(returnVal == JFileChooser.APPROVE_OPTION) { //如果对话视窗是按了[OK]或[确定]之类的按钮结束
            String fileType = jfc.getFileFilter().getDescription(); //档案类型
            fileType = (fileType.equals("jpeg file") ? fileType = "jpg" : "gif"); //转成3字元附档名
            String fullFileName = jfc.getCurrentDirectory() + "\\" + jfc.getSelectedFile().getName(); //完整档名
            if(!fullFileName.endsWith(fileType)) fullFileName = fullFileName + "." + fileType; //如果使用者没有键入付档名则自动补上
            File f = new File(fullFileName); //包装成档案物件
            try {
                ImageIO.write(m2, fileType, f);
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        
    }                                              

    private void exit_JMenuItemActionPerformed(java.awt.event.ActionEvent evt) {                                               
        System.exit(0);
    }                                              

    public void adjustmentValueChanged(AdjustmentEvent e) {
        if(e.getSource() == this.before_JScrollPane.getHorizontalScrollBar())
            this.after_JScrollPane.getHorizontalScrollBar().setValue(
                    this.before_JScrollPane.getHorizontalScrollBar().getValue());
        if(e.getSource() == this.before_JScrollPane.getVerticalScrollBar())
            this.after_JScrollPane.getVerticalScrollBar().setValue(
                    this.before_JScrollPane.getVerticalScrollBar().getValue());
    }

    private void toolButtonsActionPerformed(java.awt.event.ActionEvent evt) {                                            
        if(m2 == null) return;
        Graphics g = this.m2.getGraphics();
        if(evt.getSource() == this.addBlack_JButton)
            g.setColor(new Color(0, 0, 0, 16));
        if(evt.getSource() == this.addW_JButton)
            g.setColor(new Color(255, 255, 255, 16));
        if(evt.getSource() == this.addRed_JButton)
            g.setColor(new Color(255, 0, 0, 16));
        if(evt.getSource() == this.addGreen_JButton)
            g.setColor(new Color(0, 255, 0, 16));
        if(evt.getSource() == this.addBlue_JButton)
            g.setColor(new Color(0, 0, 255, 16));
        
        g.fillRect(0, 0,m2.getWidth(), m2.getHeight());
        afterImage_JLabel.setIcon(new ImageIcon(this.m2));
    }                                           

private void about_JMenuItemActionPerformed(java.awt.event.ActionEvent evt) {
        String msg = "名称: Image Editer\n" +
                    "版本: 0.9" +
                    "作者: Overing\n" +
                    "时间: 08/09/24~08/09/25\n" +
                    "臭虫回报:\n" +
                    "       zero_overing@yahoo.com.tw\n" +
                    "       zero_overing@hotmail.com";
        JOptionPane.showMessageDialog(this, msg, "关于本程式", JOptionPane.INFORMATION_MESSAGE);
}

    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new MainJFrame().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JMenuItem about_JMenuItem;
    private javax.swing.JButton addBlack_JButton;
    private javax.swing.JButton addBlue_JButton;
    private javax.swing.JButton addGreen_JButton;
    private javax.swing.JButton addRed_JButton;
    private javax.swing.JButton addW_JButton;
    private javax.swing.JLabel afterImage_JLabel;
    private javax.swing.JScrollPane after_JScrollPane;
    private javax.swing.JLabel beforeImage_JLabel;
    private javax.swing.JScrollPane before_JScrollPane;
    private javax.swing.JMenuItem exit_JMenuItem;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenu jMenu3;
    private javax.swing.JMenu jMenu4;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JMenuItem jMenuItem2;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JSeparator jSeparator1;
    private javax.swing.JSeparator jSeparator2;
    private javax.swing.JMenuItem load_JMenuItem;
    private javax.swing.JMenuItem save_JMenuItem;
    // End of variables declaration

}