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- /*
- * Copyright (c) 2002, 2008, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
- package javax.swing.plaf.basic;
- import java.lang.reflect.*;
- import javax.swing.*;
- import javax.swing.plaf.*;
- /**
- * An ActionMap that populates its contents as necessary. The
- * contents are populated by invoking the <code>loadActionMap</code>
- * method on the passed in Object.
- *
- * @author Scott Violet
- */
- class LazyActionMap2 extends ActionMapUIResource {
- /**
- * Object to invoke <code>loadActionMap</code> on. This may be
- * a Class object.
- */
- private transient Object _loader;
- /**
- * Installs an ActionMap that will be populated by invoking the
- * <code>loadActionMap</code> method on the specified Class
- * when necessary.
- * <p>
- * This should be used if the ActionMap can be shared.
- *
- * @param c JComponent to install the ActionMap on.
- * @param loaderClass Class object that gets loadActionMap invoked
- * on.
- * @param defaultsKey Key to use to defaults table to check for
- * existing map and what resulting Map will be registered on.
- */
- static void installLazyActionMap(JComponent c, Class<FixedTabbedPaneUI> loaderClass,
- String defaultsKey) {
- ActionMap map = (ActionMap)UIManager.get(defaultsKey);
- if (map == null) {
- map = new LazyActionMap2(loaderClass);
- UIManager.getLookAndFeelDefaults().put(defaultsKey, map);
- }
- SwingUtilities.replaceUIActionMap(c, map);
- }
- /**
- * Returns an ActionMap that will be populated by invoking the
- * <code>loadActionMap</code> method on the specified Class
- * when necessary.
- * <p>
- * This should be used if the ActionMap can be shared.
- *
- * @param c JComponent to install the ActionMap on.
- * @param loaderClass Class object that gets loadActionMap invoked
- * on.
- * @param defaultsKey Key to use to defaults table to check for
- * existing map and what resulting Map will be registered on.
- */
- static ActionMap getActionMap(Class loaderClass,
- String defaultsKey) {
- ActionMap map = (ActionMap)UIManager.get(defaultsKey);
- if (map == null) {
- map = new LazyActionMap2(loaderClass);
- UIManager.getLookAndFeelDefaults().put(defaultsKey, map);
- }
- return map;
- }
- private LazyActionMap2(Class loader) {
- _loader = loader;
- }
- public void put(Action action) {
- put(action.getValue(Action.NAME), action);
- }
- public void put(Object key, Action action) {
- loadIfNecessary();
- super.put(key, action);
- }
- public Action get(Object key) {
- loadIfNecessary();
- return super.get(key);
- }
- public void remove(Object key) {
- loadIfNecessary();
- super.remove(key);
- }
- public void clear() {
- loadIfNecessary();
- super.clear();
- }
- public Object[] keys() {
- loadIfNecessary();
- return super.keys();
- }
- public int size() {
- loadIfNecessary();
- return super.size();
- }
- public Object[] allKeys() {
- loadIfNecessary();
- return super.allKeys();
- }
- public void setParent(ActionMap map) {
- loadIfNecessary();
- super.setParent(map);
- }
- private void loadIfNecessary() {
- if (_loader != null) {
- Object loader = _loader;
- _loader = null;
- Class<?> klass = (Class<?>)loader;
- try {
- Method method = klass.getDeclaredMethod("loadActionMap",
- new Class[] { LazyActionMap2.class });
- method.invoke(klass, new Object[] { this });
- } catch (NoSuchMethodException nsme) {
- assert false : "LazyActionMap unable to load actions " +
- klass;
- } catch (IllegalAccessException iae) {
- assert false : "LazyActionMap unable to load actions " +
- iae;
- } catch (InvocationTargetException ite) {
- assert false : "LazyActionMap unable to load actions " +
- ite;
- } catch (IllegalArgumentException iae) {
- assert false : "LazyActionMap unable to load actions " +
- iae;
- }
- }
- }
- }
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