Java GUI mouse cursor

Question

Okay so, I have this function which I call on every JButton I create, and it works fine.

public void addcursor(JButton button)
{
    button.getModel().addChangeListener(new ChangeListener(){
        public void stateChanged(ChangeEvent e){
            ButtonModel model=(ButtonModel) e.getSource();
            if(model.isRollover())                  
                setCursor(new Cursor(Cursor.HAND_CURSOR));              
            else
                setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

        }
    });
}

However, this code works only when I move over a JButton, and sets the mouse cursor back to default when I move away from the Button. So, on a separate class/function:

gui.getRootPane().setCursor(new Cursor(Cursor.WAIT_CURSOR));
gui.getRootPane().setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

After calling those 2 functions, the first function addcursor(JButton) doesn't work anymore, I just want to set the buttons getModel back to how it was, after setting the cursor back to default. Note that I also tried re-calling the addcursoor(JButton) function after setting the crusor to default, but it still didn't work. Thank you.

Why can't you just set cursors directly to the jbuttons? Why monitor its model, and changing the global cursor? This may cause your conflicting cursor setting problem. — Mordechai
– Mordechai, Commented Oct 31, 2016 at 20:01

camickr · Accepted Answer · 2016-10-31 20:08:05Z

4

Components already support a cursor that will change on a mouse entered event:

button.setCursor( Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));

The cursor will also reset on a mouse exited event. So you don't need any special logic to support this type of functionality.

setCursor(new Cursor(Cursor.DEFAULT_CURSOR));

I've always just used setCursor(null) when doing manual manipulation of the cursor.

answered Oct 31, 2016 at 20:08

camickr

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1 Comment

Ahmed Over a year ago

Much easier than the whole function that I was using, thanks alot.

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