CODEWITHSUNDEEP
javamouseevent
ben
ben

Reputation: 97

Stopping mouseMoved

I was wondering how to stop mousedMoved from being fired. I've been googling but can't find an answer. Is there a method for this? I'm using eclipse and went through the mouseevent methods but just can't find anything.

    public class Drawing extends JPanel {

private ArrayList<Point> pointList;
private int counter = 0;

public Drawing() {
    setLayout(new FlowLayout());
    setBackground(Color.white);

    pointList = new ArrayList<Point>();
    addMouseListener(new MouseTrackerListener());


}

public void paintComponent(Graphics pen) {
    super.paintComponent(pen);


    for (int i = 0; i < pointList.size(); i++) {
        Point p = pointList.get(i);
        pen.fillOval(p.x, p.y, 10, 10);
    }

}

private class MouseTrackerListener extends MouseInputAdapter {
    public void mouseClicked(MouseEvent e) {

        counter++;
        if (counter % 2 != 0) {
            addMouseMotionListener(new MouseTrackerListener());


        } else {
            System.out.println("Hi");
        }

    }

    public void mouseMoved(MouseEvent e) {

        Point point = e.getPoint();
        pointList.add(point);

        repaint();

    }
}

Upvotes: 0

Views: 667

Answers (2)

Dyrandz Famador
Dyrandz Famador

Reputation: 4525

you can create a boolean to toggle if it's on drawing status or not. you name the boolean like isDrawingMode

so when you click the mouse.. you set it to false, if you click it again, it will become true;

all you have to do is to toggle the boolean isDrawingMode when the mouse was clicked

so your mousemoved listener will look like this

public void mouseMoved(MouseEvent e) {

        if (!isDrawingMode) return; //if isDrawingMode is false, it will not trigger to draw
        Point point = e.getPoint();
        pointList.add(point);

        repaint();

}

Upvotes: 1

Arjun Chaudhary
Arjun Chaudhary

Reputation: 2453

For Java

You could use a common base class for your listeners and in it, have a static method to turn the listeners on or off:

public abstract class BaseMouseListener implements ActionListener{

    private static boolean active = true;
    public static void setActive(boolean active){
        BaseMouseListener.active = active;
    }

    protected abstract void doPerformAction(ActionEvent e);

    @Override
    public final void actionPerformed(ActionEvent e){
        if(active){
            doPerformAction(e);
        }
    }
}

Your listeners would have to implement doPerformAction() instead of actionPerformed().

More info : How to temporarily disable event listeners in Swing?

I don't know which language u using or what is your code. In Jquery i generally use the following 2 methods code

M1: to unbind one event of another.

OR M2: You should add event.stopPropagation() at the end of this event call to stop propogation..

M1 code sample:

else if(e.type == 'click')
{
    $(window).unbind('mousemove')
}
But really you should name the event so you only unbind the appropriate event listener.

Bind : $(window).bind('mousemove.dragging', function(){});

Unbind : $(window).unbind('mousemove.dragging', function(){});

M2 Code sample:

$("#rightSubMenu").mousemove(function(e){
  // You code...
  e.stopPropagation();
});

Extra Info

For more info just see following tags Disable mousemove on click How to stop mousemove() from executing when the element under the mouse moves?

Upvotes: 0

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