JPanel中的鼠标移动事件 [英] Mouse moved event within JPanel

问题描述

我的鼠标事件无法正常工作.我在JScrollPane中的JLayeredPane中有一个JPanel.诚然，我对使用Swing还是比较陌生，但从本质上讲，我希望JPanel对鼠标的移动做出反应，但一直无法使其正常工作.

I'm having some issues with getting my mouse events to work. I have a JPanel inside of a JLayeredPane which is in a JScrollPane. Admittedly, I am fairly new to working with Swing, but essentially, I want the JPanel to react to the mouse moving, but have been unable to get it to work.

public class CellHighlighter extends JPanel implements MouseMotionListener{

    public CellHighlighter(){

    }

    public void mouseMoved(MouseEvent evt){
        System.out.println(evt.getPoint().x + ", " + evt.getPoint().y);
    }

    public void mouseDragged(MouseEvent evt){System.out.println("message");}

}

任何帮助将不胜感激，在此先感谢您！

Any help would be much appreciated, thanks in advance!

推荐答案

您是否正在使用MouseListener注册JPanel对象? 像这样:

Are you registering your JPanel Object with the MouseListener? Something like:

    public CellHighlighter(){
       this.addMouseMotionListener(this);
    }

或者您可能需要将MouseListener添加到ScrollPane或LayeredPane?

Or maybe you need to add the MouseListener to The ScrollPane or LayeredPane?

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