protected void installDefaults() {
super.installDefaults();
/* Enable the content pane to inherit background color
* from its parent by setting its background color to null.
* Fixes bug#4268949, which has been fixed in 1.4, too. */
JComponent contentPane = (JComponent) frame.getContentPane();
if (contentPane != null) {
Color bg = contentPane.getBackground();
if (bg instanceof UIResource) contentPane.setBackground(null);
}
frame.setBackground(UIManager.getLookAndFeelDefaults().getColor("control"));
}
public void uninstallUI(JComponent c) {
frame = (JInternalFrame) c;
c.removePropertyChangeListener(paletteListener);
c.removePropertyChangeListener(contentPaneListener);
Container cont = ((JInternalFrame) (c)).getContentPane();
if (cont instanceof JComponent) {
JComponent content = (JComponent) cont;
if (content.getBorder() == EMPTY_BORDER) {
content.setBorder(null);
}
}
super.uninstallUI(c);
}
public void installUI(JComponent c) {
frame = (JInternalFrame) c;
paletteListener = new PaletteListener(this);
contentPaneListener = new ContentPaneListener(this);
c.addPropertyChangeListener(paletteListener);
c.addPropertyChangeListener(contentPaneListener);
super.installUI(c);
Object paletteProp = c.getClientProperty(IS_PALETTE);
if (paletteProp != null) {
setPalette(((Boolean) paletteProp).booleanValue());
}
Container content = frame.getContentPane();
stripContentBorder(content);
}