/** * Removes the previous content border from the specified component, and sets an empty border if * there has been no border or an UIResource instance before. */ private void stripContentBorder(Object c) { if (c instanceof JComponent) { JComponent contentComp = (JComponent) c; Border contentBorder = contentComp.getBorder(); if (contentBorder == null || contentBorder instanceof UIResource) { contentComp.setBorder(handyEmptyBorder); } } }
/** Uninstalls the UI delegate for the specified component */ public void uninstallUI(JComponent c) { frame = (JInternalFrame) c; Container cont = ((JInternalFrame) (c)).getContentPane(); if (cont instanceof JComponent) { JComponent content = (JComponent) cont; if (content.getBorder() == handyEmptyBorder) { content.setBorder(null); } } super.uninstallUI(c); }