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2010/04/05

aterai

JTabbedPane selected tab height

Code

tabbedPane.setUI(new com.sun.java.swing.plaf.windows.WindowsTabbedPaneUI() {
  @Override protected int calculateTabHeight(int tabPlacement, int tabIndex, int fontHeight) {
    return 32;
  }
  @Override protected void paintTab(Graphics g, int tabPlacement, Rectangle[] rects,
                                    int tabIndex, Rectangle iconRect, Rectangle textRect) {
    Rectangle tabRect  = rects[tabIndex];
    int selectedIndex  = tabPane.getSelectedIndex();
    boolean isSelected = selectedIndex == tabIndex;
    if(!isSelected) {
      //JTabbedPane.TOP, JTabbedPane.SCROLL_TAB_LAYOUT
      rects[tabIndex].y = 16;
      rects[tabIndex].height = 16;
    }
    super.paintTab(g,tabPlacement,rects,tabIndex,iconRect,textRect);
  }
});

References