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javaswingmouse-cursor

How to change the mouse cursor in java?


I have a list of words inside the JList. Every time I point the mouse cursor at a word, I want the cursor to change into a hand cursor. Now my problem is how to do that?

Could someone help me with this problem?


Solution

  • Use a MouseMotionListener on your JList to detect when the mouse enters it and then call setCursor to convert it into a HAND_CURSOR.

    Sample code:

    final JList list = new JList(new String[] {"a","b","c"});
    list.addMouseMotionListener(new MouseMotionListener() {
        @Override
        public void mouseMoved(MouseEvent e) {
            final int x = e.getX();
            final int y = e.getY();
            // only display a hand if the cursor is over the items
            final Rectangle cellBounds = list.getCellBounds(0, list.getModel().getSize() - 1);
            if (cellBounds != null && cellBounds.contains(x, y)) {
                list.setCursor(new Cursor(Cursor.HAND_CURSOR));
            } else {
                list.setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
            }
        }
    
        @Override
        public void mouseDragged(MouseEvent e) {
        }
    });