Changing background color for Tabbed panel

Question

Issue: Can't change edge around content area of tabbed panel or tabs background color

Tried: Setting panels opaque, changing UIManager defaults, and a few other random things.

Code: https://gist.github.com/DarkGuardsman/b86c542cc168d1c792a01a4d44dba229

Note: I didn't write all of this code as I'm updating an existing project with interface changes. So keep remarks to the solution and not coding style.

Use tabbedPane.setBackgroundAt(). For more details, refer this. http://stackoverflow.com/questions/8752037/how-to-change-background-color-of-jtabbedpane... This might help you. — Jay Patel, Jul 27 '16 at 02:42
If you look at the source I'm already trying that, but I'll look at the link :) ty — DarkGuardsman, Jul 27 '16 at 17:54

score 0 · Answer 1 · answered Jul 27 '16 at 21:31

I found a solution though I'm pretty sure it's not the best solution. I was originally heading for this before posting. After reading through the UI code I found that it paints a border around the content panel. Overriding the method paintTabBackground which does most of the border solved the issue.

private class TabUI extends BasicTabbedPaneUI
{
    @Override
    protected void paintTabBackground(Graphics g, int tabPlacement, int tabIndex, int x, int y, int w, int h, boolean isSelected ) {
        g.setColor(LauncherFrame.secondaryColor);
        switch(tabPlacement) {
            case LEFT:
                g.fillRect(x+1, y+1, w-1, h-3);
                break;
            case RIGHT:
                g.fillRect(x, y+1, w-2, h-3);
                break;
            case BOTTOM:
                g.fillRect(x+1, y, w-3, h-1);
                break;
            case TOP:
            default:
                g.fillRect(x+1, y+1, w-3, h-1);
        }
    }
}

Changing background color for Tabbed panel

1 Answers1