shuangjishijian.java

来自「java+sql 图书管理系统」· Java 代码 · 共 97 行

package MyLibraryok.MySwing;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Date;
//import com.borland.jbcl.layout.*;

public class shuangjishijian extends JFrame {
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();
  JPanel jPanel1 = new JPanel();
//  XYLayout xYLayout1 = new XYLayout();
  JScrollPane jScrollPane1 = new JScrollPane();
  JList jList1 = new JList();
  //初始化的JList中的数据
  String[] strData = {"One", "Tow", "Three"};
  //保存点击按钮的时间
  long clickTime = 0;
  //XYLayout xYLayout2 = new XYLayout();


  //Construct the frame
  public shuangjishijian() {
    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(borderLayout1);
    this.setLocale(java.util.Locale.getDefault());
    this.setBounds(100,100,500,500);
    this.setVisible(true);
    this.setSize(new Dimension(532, 468));
    this.setTitle("Frame Title");
    jPanel1.setLayout(null);
    jList1.addMouseListener(new Frame1_jList1_mouseAdapter(this));
    contentPane.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jScrollPane1);
    jScrollPane1.getViewport().add(jList1, null);
    jList1.setListData(strData);
  }


  //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);
    }
  }


  //具体实现按钮双击的功能的方法，　很简单的算法，不做解释了
  public boolean checkClickTime() {
    long nowTime = (new Date()).getTime();
    if ((nowTime - clickTime) < 300) {
      clickTime = nowTime;
      return true;
    }
    clickTime = nowTime;
    return false;

  }

  void jList1_mouseReleased(MouseEvent e) {
    //判断是否双击，是的话写你要实现的功能
    if (checkClickTime()) {
      System.out.println("Click Double");
    }
  }


  class Frame1_jList1_mouseAdapter extends java.awt.event.MouseAdapter {
    shuangjishijian adaptee;

    Frame1_jList1_mouseAdapter(shuangjishijian adaptee) {
      this.adaptee = adaptee;
    }


    public void mouseReleased(MouseEvent e) {
      adaptee.jList1_mouseReleased(e);
    }
  }
  public static void main(String[] args) {
   shuangjishijian d =  new shuangjishijian();
   }
}