how to give drag functionaly to a JFame with no titleBar?

Question

i m creating a JFrame with four buttons in its titleBar.

JFrame frame=new JFrame("custom JFrame with 4 buttons in title");
frame.setUndecorated(true);

JPanel button_panel=new JPanel(new FlowLayout(FlowLayout.LEFT));
JButton button_1=new JButton("+");
JButton button_2=new JButton("↑");
JButton button_3=new JButton("-");
JButton button_4=new JButton("system tray");

button_panel.add(button_1);
button_panel.add(button_2);
button_panel.add(button_3);
button_panel.add(button_4);

frame.getContentPane().add(button_panel,BorderLayout.NORTH);

now, i have a JFrame with four buttons in its titlebar.

but, how to give drag functionality to this custom JFrame?

How do you want the JFrame to be moved? Something like clicking anything in the fame, and then dragging the mouse? — user489041, Mar 31 '11 at 20:02
Possible duplicate of [Making a java swing frame movable and setUndecorated](https://stackoverflow.com/questions/16046824/making-a-java-swing-frame-movable-and-setundecorated) — , Jun 23 '19 at 09:52

score 5 · Accepted Answer · answered Mar 31 '11 at 23:50

5

is it the only solution?

Well, the only solution that I know of is to use MouseListeners.

For a more general solution you can check out Moving Windows which allows you to make any Swing component dragable.

answered Mar 31 '11 at 23:50

camickr

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score 2 · Answer 2 · answered Apr 01 '11 at 08:45

2

Are you using Mac OS X? A Mac-specific solution is this:

frame.getRootPane().putClientProperty("apple.awt.draggableWindowBackground", true);

answered Apr 01 '11 at 08:45

Steve McLeod

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score 1 · Answer 3 · answered Aug 05 '14 at 10:14

If you don't care about the offset between mouse position and components location on screen (components upper left corner), this is the easiest solution:

private class DragListener extends MouseAdapter {

   @Override
    public void mouseDragged(MouseEvent e) {
        setLocation(MouseInfo.getPointerInfo().getLocation());
    }
}

score 1 · Answer 4 · answered Mar 31 '11 at 20:04

1

You can drag a JFrame by it's contents by setting up the MouseListener appropriately. This post has an example.

answered Mar 31 '11 at 20:04

Bala R

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@Lokesh this is the easiest I can think of. Did you have a different approach in mind that you wanted to try? – Bala R Mar 31 '11 at 20:24
@@Bala R can we extract titlbar component from JFrame UI and add one more Jbutton into it. – Lokesh Kumar Mar 31 '11 at 20:37

score 0 · Answer 5 · edited Jun 23 '19 at 08:35

0

You can simply override mousepressed and mousedragged methods as shown:

private int tx, ty;
private void titlebar_mousePressed(MouseEvent m)
{
    tx= m.getX();
    ty=m.getY();
}
private void titlebar_mouseDragged(MouseEvent m)
{
    titlebar.setLocation(m.getXOnScreen() -tx, m.getYOnScreen() -ty);
}

edited Jun 23 '19 at 08:35

Moshe Slavin

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answered Jan 07 '17 at 10:51

GAURAV ROZATKAR

1

how to give drag functionaly to a JFame with no titleBar?

5 Answers5