1950 }
1951
1952 static void updateRendererOrEditorUI(Object rendererOrEditor) {
1953 if (rendererOrEditor == null) {
1954 return;
1955 }
1956
1957 Component component = null;
1958
1959 if (rendererOrEditor instanceof Component) {
1960 component = (Component)rendererOrEditor;
1961 }
1962 if (rendererOrEditor instanceof DefaultCellEditor) {
1963 component = ((DefaultCellEditor)rendererOrEditor).getComponent();
1964 }
1965
1966 if (component != null) {
1967 SwingUtilities.updateComponentTreeUI(component);
1968 }
1969 }
1970 }
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1950 }
1951
1952 static void updateRendererOrEditorUI(Object rendererOrEditor) {
1953 if (rendererOrEditor == null) {
1954 return;
1955 }
1956
1957 Component component = null;
1958
1959 if (rendererOrEditor instanceof Component) {
1960 component = (Component)rendererOrEditor;
1961 }
1962 if (rendererOrEditor instanceof DefaultCellEditor) {
1963 component = ((DefaultCellEditor)rendererOrEditor).getComponent();
1964 }
1965
1966 if (component != null) {
1967 SwingUtilities.updateComponentTreeUI(component);
1968 }
1969 }
1970
1971 /**
1972 * Retrieves the validate root of a given container.
1973 *
1974 * If the container is contained within a {@code CellRendererPane}, this
1975 * method returns {@code null} due to the synthetic nature of the {@code
1976 * CellRendererPane}.
1977 * <p>
1978 * The component hierarchy must be displayable up to the toplevel component
1979 * (either a {@code Frame} or an {@code Applet} object.) Otherwise this
1980 * method returns {@code null}.
1981 * <p>
1982 * If the {@code visibleOnly} argument is {@code true}, the found validate
1983 * root and all its parents up to the toplevel component must also be
1984 * visible. Otherwise this method returns {@code null}.
1985 *
1986 * @return the validate root of the given container or null
1987 * @see java.awt.Component#isDisplayable()
1988 * @see java.awt.Component#isVisible()
1989 * @since 1.7
1990 */
1991 static Container getValidateRoot(Container c, boolean visibleOnly) {
1992 Container root = null;
1993
1994 for (; c != null; c = c.getParent())
1995 {
1996 if (!c.isDisplayable() || c instanceof CellRendererPane) {
1997 return null;
1998 }
1999 if (c.isValidateRoot()) {
2000 root = c;
2001 break;
2002 }
2003 }
2004
2005 if (root == null) {
2006 return null;
2007 }
2008
2009 for (; c != null; c = c.getParent()) {
2010 if (!c.isDisplayable() || (visibleOnly && !c.isVisible())) {
2011 return null;
2012 }
2013 if (c instanceof Window || c instanceof Applet) {
2014 return root;
2015 }
2016 }
2017
2018 return null;
2019 }
2020 }
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