Click in JFrame Titlebar sets the JFrame Opaque

[Tim Alvord]

Hi,
I have a JFrame that I would like to set Opaque when the MouseButton is held down on the TitleBar and moved and returns to solid when released. I have two problems.

(1) The only way I could get the Opacity to work was by setting: JFrame.setDefaultLookAndFeelDecorated(true); This works but changes the Titlebar to a really ugly non-Windows look and feel Titlebar. Would like it to work without changing the Windws look and feel.
(2) Second problem is that when I click on the Titlebar, I cannot move the JFrame.

    JFrame.setDefaultLookAndFeelDecorated(true);

    win=new JFrame("Calculator");
    win.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    win.setBounds(400,200,335,630);
    win.setResizable(false);
    win.setFocusable(true);
		
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    GraphicsDevice gd = ge.getDefaultScreenDevice();
    if (!gd.isWindowTranslucencySupported(TRANSLUCENT))
    {
        System.err.println("Translucency is not supported");
    } 
    win.getLayeredPane().getComponent(1).addMouseListener(new MouseAdapter() {
        public void mousePressed(MouseEvent me){
	    win.setOpacity(0.65f);
        }
        public void mouseReleased(MouseEvent me){
	    win.setOpacity(1.0f);
        }
    });

[Michael Dunn]

> I have a JFrame that I would like to set Opaque when the MouseButton is held down on the TitleBar and moved and returns to solid when released.

you might get it to work by adding a ComponentListener's componentMoved() to the frame,
but this will fire multiple times during the 'move'.

the trick will be to determine when the move has finished, i.e. returning to 'solid'.
maybe a Timer, repeats(false) each firing, to check if current x,y = old x,y (???)

[Darryl Burke]

Tim, please BeForthrightWhenCrossPostingToOtherSites
http://www.java-forums.org/awt-swing/68509-click-jframe-titlebar-sets-jframe-opaque.html

[Michael Dunn]

Thanks Darryl, another time-waster added to my ignore list.

[Tim Alvord]

Darryl, Michael...
Sorry about the Cross Posting. Didn't realize that it was frowned upon in the Java arena. I come from the .Net world where is is not only allowed but encouraged...


Tim

[Rob Spoor]

If you would have read that FAQ entry you would have seen that we don't mind cross posting, as long as you tell every site involved.