myjscrollpane.java

我用java写的简单的图片浏览器

package viewimage;

import javax.swing.UIManager;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class myJScrollPane {
   boolean packFrame = false;

   //Construct the application
   public myJScrollPane() {
      Frame1 frame = new Frame1();
      //Validate frames that have preset sizes
      //Pack frames that have useful preferred size info, e.g. from their layout
      if (packFrame) {
         frame.pack();
      }
      else {
         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);
   }
   //Main method
   public static void main(String[] args) {
      try {
         UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
      }
      catch(Exception e) {
         e.printStackTrace();
      }
      new myJScrollPane();
   }
}
//********************************************************************
class Frame1 extends JFrame {
   JPanel contentPane;
   JButton jButton1 = new JButton();
   JFileChooser jFileChooser1=new JFileChooser();
   String imagePath;
   JScrollPane jScrollPane1 = new JScrollPane();
   JLabel jLabel1 = new JLabel();
   JLabel showPath = new JLabel();
   long lengthOfChooser;
   JButton jButton2 = new JButton();

//Construct the frame
   public Frame1() {
      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.setLocale(java.util.Locale.getDefault());
      this.setResizable(false);
      this.setSize(new Dimension(807, 672));
      this.setTitle("jpg图片浏览--made by xiaotan");
      jButton1.setBounds(new Rectangle(293, 6, 114, 39));
      jButton1.setFont(new java.awt.Font("Dialog", 0, 20));
      jButton1.setText("图片浏览");
      jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));
      contentPane.setMaximumSize(new Dimension(32767, 32767));
      jScrollPane1.setBorder(BorderFactory.createLoweredBevelBorder());
      jScrollPane1.setBounds(new Rectangle(1, 48, 798, 567));
      jLabel1.setFont(new java.awt.Font("Dialog", 0, 26));
      jLabel1.setToolTipText("");
      jLabel1.setText("");
      showPath.setFont(new java.awt.Font("Dialog", 0, 14));
      showPath.setToolTipText("");
      showPath.setText("   状态显示栏");
      showPath.setBounds(new Rectangle(8, 615, 787, 22));
      jButton2.addActionListener(new Frame1_jButton2_actionAdapter(this));
      jButton2.setText("退出浏览");
      jButton2.addActionListener(new Frame1_jButton2_actionAdapter(this));
      jButton2.setFont(new java.awt.Font("Dialog", 0, 20));
      jButton2.setBounds(new Rectangle(421, 6, 114, 39));
      contentPane.add(jScrollPane1, null);
      contentPane.add(showPath, null);
      contentPane.add(jButton2, null);
      contentPane.add(jButton1, null);
      jScrollPane1.getViewport().add(jLabel1, null);
   }
      //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);
      }
   }

   void jButton1_actionPerformed(ActionEvent e) {
      if(JFileChooser.APPROVE_OPTION==jFileChooser1.showOpenDialog(this)){
          imagePath=jFileChooser1.getSelectedFile().getPath();
          lengthOfChooser=jFileChooser1.getSelectedFile().length();
          jLabel1.setIcon(new ImageIcon(imagePath));
          showPath.setText("图片目录 : "+imagePath+"      文件大小 : "+((float)lengthOfChooser/100)+" K");

      }
   }


   void jButton2_actionPerformed(ActionEvent e) {
     dispose();
     System.exit(0);
   }
}

class Frame1_jButton1_actionAdapter implements java.awt.event.ActionListener {
   Frame1 adaptee;

   Frame1_jButton1_actionAdapter(Frame1 adaptee) {
      this.adaptee = adaptee;
   }
   public void actionPerformed(ActionEvent e) {
      adaptee.jButton1_actionPerformed(e);
   }
}

class Frame1_jButton2_actionAdapter implements java.awt.event.ActionListener {
   Frame1 adaptee;

   Frame1_jButton2_actionAdapter(Frame1 adaptee) {
      this.adaptee = adaptee;
   }
   public void actionPerformed(ActionEvent e) {
      adaptee.jButton2_actionPerformed(e);
   }
}