frame1.java

jbuilder8开发的十个实用例子。

package mouseevent;

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

public class Frame1 extends JFrame {
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();
  Panel panel1 = new Panel();
  Label label1 = new Label();
  Cursor crossCursor = new Cursor(Cursor.CROSSHAIR_CURSOR);

  /**Construct the frame*/
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(227, 215));
    this.setTitle("MouseEvent演示程序");
    label1.setText("鼠标事件演示");
    panel1.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mousePressed(MouseEvent e) {
        panel1_mousePressed(e);
      }
    });
    panel1.setCursor(crossCursor);
    contentPane.add(panel1, BorderLayout.CENTER);
    contentPane.add(label1,  BorderLayout.SOUTH);
  }
  /**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 panel1_mousePressed(MouseEvent e) {
    label1.setText("鼠标事件发生在坐标:("+e.getX()+","+e.getY()+")");
    if(e.getModifiers() == e.BUTTON1_MASK)
      label1.setText(label1.getText()+"----左键");
    else if(e.getModifiers() == e.BUTTON3_MASK)
      label1.setText(label1.getText()+"----右键");
  }
}