选择后面的JPanel父级

Question

下面是 SSCCE 来描述我的问题。

import java.awt.Color;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JPanel;

public class APanel extends JPanel{

public APanel() {

    this.setVisible(true);
    this.setBackground(Color.red);
    this.addMouseListener(new MouseListener() {

        public void mouseClicked(MouseEvent e) {
            if(e.getClickCount()==2)
            {

            }
            System.out.println("Child panel clicked!");
        }
        public void mousePressed(MouseEvent e) { }
        public void mouseReleased(MouseEvent e) {}
        public void mouseEntered(MouseEvent e) { }
        public void mouseExited(MouseEvent e) {}
    });
  }
}


    import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class PPanel extends JPanel{
    private APanel panel1;
    private APanel panel2;
    private APanel panel3;
    public PPanel() {
        this.setLayout(new GridLayout(0,1));
        panel1 = new APanel();
        panel2 = new APanel();
        panel2.setBackground(Color.yellow);
        panel3 = new APanel();
        panel3.setBackground(Color.green);
        this.add(panel1);
        this.add(panel2);
        this.add(panel3);
        this.setBackground(Color.blue);
         this.addMouseListener(new MouseListener() {
            public void mouseClicked(MouseEvent e) {
                System.out.println("Parent panel clicked!");
            }
            public void mousePressed(MouseEvent e) { }
            public void mouseReleased(MouseEvent e) {}
            public void mouseEntered(MouseEvent e) { }
            public void mouseExited(MouseEvent e) {}
        });
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame();
        PPanel panel = new PPanel();
        frame.add(panel);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(new Dimension(350, 300));
        frame.setTitle("Demo");
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}

我该如何执行以下操作：

• 如果 e.getClickCount()==1 则父 MouseListener 将处于活动状态，并且它将打印“已单击父面板！”。

• 如果 e.getClickCount()==2 则子 MouseListner 将激活并打印出“已单击子面板！”。

  编辑1：更接近建议的解决方案。

  导入java.awt.*;
  导入 java.awt.event.*;
  导入javax.swing.JPanel；
  导入 javax.swing.Timer;
  
  公共类 APanel 扩展 JPanel {
  
  私有静态最终长serialVersionUID = 1L;
  私人点 pt；
  
  公共APanel（）{
      计时器.setRepeats(假);
      addMouseListener(new MouseAdapter() {
  
          @覆盖
          公共无效鼠标点击（MouseEvent e）{
              if (timer.isRunning() && !e.isConsumed() && e.getClickCount() > 1) {
                  System.out.println("来自孩子的双倍");
                  pt = 空；
                  计时器.stop();
              } 别的 {
                  pt = e.getPoint();
                  组件组件 = (Component)e.getSource();
                  component.getParent().dispatchEvent(e);
                  计时器.重新启动();
              }
          }
      });
      setBackground(颜色.红色);
      设置可见（真）；
  }
  
  私有定时器计时器 = new Timer(200, new ActionListener() {
  
      @覆盖
      公共无效actionPerformed（ActionEvent e）{
          //System.out.println("单从孩子");
      }
  });
  

  }

mouseEvent 需要传递多个容器，请使用此 链接 可能会感兴趣。

Answer 1

如果您选择解释双击，请考虑使用用户的首选间隔，如建议的 此处。

Toolkit.getDefaultToolkit().getDesktopProperty("awt.multiClickInterval");

Answer 2

我认为（据我所知）不可能将鼠标事件从子级重定向到其父级，只需从 MouseCursor 下的组件获取父级，或者从从 MouseClick 接收事件的组件获取父级，

也许有人可以帮助您： -)，但这里是您与父项成功所需的代码

：

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

public class PPanel extends JPanel {

    private static final long serialVersionUID = 1L;
    private APanel panel1;
    private APanel panel2;
    private APanel panel3;

    public PPanel() {
        setLayout(new GridLayout(0, 1));
        panel1 = new APanel();
        panel2 = new APanel();
        panel2.setBackground(Color.yellow);
        panel3 = new APanel();
        panel3.setBackground(Color.green);
        add(panel1);
        add(panel2);
        add(panel3);
        setBackground(Color.blue);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                JFrame frame = new JFrame();
                PPanel panel = new PPanel();
                frame.add(panel);
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setPreferredSize(new Dimension(350, 300));
                frame.setTitle("Demo");
                frame.setLocationRelativeTo(null);
                frame.pack();
                frame.setVisible(true);
            }
        });
    }
}

子项：

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

public class APanel extends JPanel {

    private static final long serialVersionUID = 1L;
    private Point pt;

    public APanel() {
        timer.setRepeats(false);
        addMouseListener(new MouseAdapter() {

            @Override
            public void mouseClicked(MouseEvent e) {
                if (timer.isRunning() && !e.isConsumed() && e.getClickCount() > 1) {
                    System.out.println("double from child");
                    pt = null;
                    timer.stop();
                } else {
                    pt = e.getPoint();
                    timer.restart();
                }
            }
        });
        setBackground(Color.red);
        setVisible(true);
    }

    private Timer timer = new Timer(400, new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent e) {
            System.out.println("single from child");
        }
    });
}