Removing Space within JTabbedPane

Question

Hi everyone. It seems that whenever I add a component to a JTabbedPane, the component is maximized, but there's still a small space around the component that seperates it from its tab. Does anyone know how to remove this small space? Thanks.
Jon

Answer 1

Easier option: myTabbedPane.setUI(new javax.swing.plaf.metal.MetalTabbedPaneUI() {
    public Insets getContentBorderInsets(int tabPlacement) {
        return new Insets(0,0,0,0);
    }});...if you are using the Metal L&F. If not, you'll have to write your own paintTabBackground() method to add to the above class. Here's a working example:tabbedpane.setUI(new javax.swing.plaf.basic.BasicTabbedPaneUI() {
    public Insets getContentBorderInsets(int tabPlacement) {
        return new Insets(0,0,0,0);
        protected void paintTabBackground( Graphics g, int tabPlacement,
                                       int tabIndex, int x, int y, int w, int h, boolean isSelected ) {
        if ( isSelected ) {
            g.setColor(  (Color)UIManager.get("TabbedPane.highlight"));
        } else {
            g.setColor( tabPane.getBackgroundAt( tabIndex ) );
         switch ( tabPlacement ) {
                case LEFT:
              g.fillRect( x + 5, y + 1, w - 5, h - 1);
              g.fillRect( x + 2, y + 4, 3, h - 4 );
              break;
                case BOTTOM:
              g.fillRect( x + 2, y, w - 2, h - 4 );
              g.fillRect( x + 5, y + (h - 1) - 3, w - 5, 3 );
              break;
                case RIGHT:
              g.fillRect( x + 1, y + 1, w - 5, h - 1);
              g.fillRect( x + (w - 1) - 3, y + 5, 3, h - 5 );
              break;
                case TOP:
                default:
              g.fillRect( x + 4, y + 2, (w - 1) - 3, (h - 1) - 1 );
              g.fillRect( x + 2, y + 5, 2, h - 5 );
});