How to stop JButton background only appearing as a border

Question

I'm creating an AbstractColorChooserPanel for recent colours (in a 4 * 4 grid) and while setting the background colour for the recent colours it only appears as a border to the button instead of filling it.

According to this the code below should work:

button.setBackground(Color.RED);
button.setOpaque(true);

Ive also tried adding

button.setBorderPainted(false);

but all that displays is a grey (standard colour) button with a red border. I have tried putting the code on a button outside the JColorChooser and received the same effect. example

How do I make it so the entire button is filled with the red colour instead of just the border?

EDIT: The problem turned out to be the UIManager (default system look and feel) To solve this I modified the code used in this solution.

makchamp · Accepted Answer · 2019-03-27T19:35:06.590

0

Try adding this :

button.setContentAreaFilled( false );

edited Mar 27 '19 at 19:35

answered Mar 27 '19 at 19:27

makchamp

81
4

That just removes the buttons all together sadly, leaving only the dotted outline when you click on them. – j. McNair Mar 27 '19 at 19:34
Maybe try changing/setting the look and feel if you haven't already ? – makchamp Mar 27 '19 at 19:55
I was on systemlookandfeel and after reverting to the java default look and feel it seems to have sorted itself, thanks. – j. McNair Mar 27 '19 at 20:13
Now just to figure out how to make it work with system look and feel – j. McNair Mar 27 '19 at 20:13

How to stop JButton background only appearing as a border

1 Answers1