public int getTitleHeight(Component c) { int th = 21; int fh = getBorderInsets(c).top + getBorderInsets(c).bottom; if (c instanceof JDialog) { JDialog dialog = (JDialog) c; th = dialog.getSize().height - dialog.getContentPane().getSize().height - fh - 1; if (dialog.getJMenuBar() != null) { th -= dialog.getJMenuBar().getSize().height; } } else if (c instanceof JInternalFrame) { JInternalFrame frame = (JInternalFrame) c; th = frame.getSize().height - frame.getRootPane().getSize().height - fh - 1; if (frame.getJMenuBar() != null) { th -= frame.getJMenuBar().getSize().height; } } else if (c instanceof JRootPane) { JRootPane jp = (JRootPane) c; if (jp.getParent() instanceof JFrame) { JFrame frame = (JFrame) c.getParent(); th = frame.getSize().height - frame.getContentPane().getSize().height - fh - 1; if (frame.getJMenuBar() != null) { th -= frame.getJMenuBar().getSize().height; } } else if (jp.getParent() instanceof JDialog) { JDialog dialog = (JDialog) c.getParent(); th = dialog.getSize().height - dialog.getContentPane().getSize().height - fh - 1; if (dialog.getJMenuBar() != null) { th -= dialog.getJMenuBar().getSize().height; } } } return th; }