Undecorated JDialog border

Question

I have a question regarding the border around an undecorated JDialog using the Metal L&F.

Look at this picture to see the border that is on this window:

enter image description here

I'm trying to figure out how to either get rid of or change the color of the blue border around the very outside of the JDialog. I looked at the UI defaults for the Look & Feel but I wasn't able to come up with any that worked for this.

Does anybody have any ideas on how to get rid of that border?

Thanks!

Can my answer in you another question http://stackoverflow.com/a/32752359/5370194 help you? — Jun, Sep 24 '15 at 02:34

score 11 · Accepted Answer · edited Dec 08 '17 at 21:30

11

You need to change the Border of the root pane:

getRootPane().
   setBorder( BorderFactory.createLineBorder(Color.RED) );

edited Dec 08 '17 at 21:30

Nathan

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answered Jul 01 '13 at 22:20

camickr

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score 5 · Answer 2 · answered Jul 01 '13 at 21:21

5

If you want to get rid of it you can use

frame.setUndecorated(true);
frame.getRootPane().setWindowDecorationStyle(JRootPane.NONE);

To change the look of it from the Java style to the windows style you can use

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

answered Jul 01 '13 at 21:21

user2526311

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This does not do what I want it to. I need the title bar to stay at the top while also having the frame undecorated. The only way to do this is to use the metal look & feel. Setting the window decoration style to none gets rid of the title bar at the top. – Mark Jul 01 '13 at 21:25

Maroun · Answer 3 · 2013-07-02T06:04:49.530

2

You can do something like this:

((JPanel)getContentPane()).setBorder(BorderFactory.createLineBorder(Color.BLUE));

enter image description here

You can try to do this in order to change the most outsude border:

getRootPane().setBorder(BorderFactory.createLineBorder(Color.BLUE));

Is this what you want to do?

edited Jul 02 '13 at 06:04

answered Jul 01 '13 at 21:09

Maroun

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`getRootPane()` is inside border - author pointed for outside border of undecorated JDialog – Tamara Koliada Jan 03 '19 at 15:57

Undecorated JDialog border

3 Answers3

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