frame1.java

来自「Jbuilder100个例子 都是经典例子 对大家学习Jbuilder非常有帮助」· Java 代码 · 共 61 行

package mouseeventii;

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(292, 214));
    this.setTitle("MouseEventII演示程序");
    label1.setText("鼠标事件演示");
    panel1.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() {
      public void mouseMoved(MouseEvent e) {
        panel1_mouseMoved(e);
      }
    });
    panel1.addMouseListener(new java.awt.event.MouseAdapter() {
      public void mouseExited(MouseEvent e) {
        panel1_mouseExited(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_mouseMoved(MouseEvent e) {
    label1.setText("Mouse Position:("+e.getX()+","+e.getY()+")");
  }

  void panel1_mouseExited(MouseEvent e) {
    label1.setText("Mouse Exits");
  }
}