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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:
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!
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JDialog is one of the important features of JAVA Swing contributing to interactive desktop-based applications. This is used as a top-level container on which multiple lightweight JAVA swing components can be placed to form a window based application.
How do you put a border in Java? To put a border around a JComponent , you use its setBorder method. You can use the BorderFactory class to create most of the borders that Swing provides. The Border API.
You can't have a border directly on a JWindow or JFrame. You need to put a JPanel with the desired border using the default JWindow/JFrame LayouManager (a BorderLayout). Then the JPanel is extended giving the impression that its borders are the JWindow one.
You need to change the Border of the root pane:
getRootPane().
setBorder( BorderFactory.createLineBorder(Color.RED) );
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());
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