| /* |
| * Copyright (c) 1999, 2006, 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; |
| |
| /** |
| * A <code>ComponentInputMap</code> is an <code>InputMap</code> |
| * associated with a particular <code>JComponent</code>. |
| * The component is automatically notified whenever |
| * the <code>ComponentInputMap</code> changes. |
| * <code>ComponentInputMap</code>s are used for |
| * <code>WHEN_IN_FOCUSED_WINDOW</code> bindings. |
| * |
| * @author Scott Violet |
| * @since 1.3 |
| */ |
| public class ComponentInputMap extends InputMap { |
| /** Component binding is created for. */ |
| private JComponent component; |
| |
| /** |
| * Creates a <code>ComponentInputMap</code> associated with the |
| * specified component. |
| * |
| * @param component a non-null <code>JComponent</code> |
| * @throws IllegalArgumentException if <code>component</code> is null |
| */ |
| public ComponentInputMap(JComponent component) { |
| this.component = component; |
| if (component == null) { |
| throw new IllegalArgumentException("ComponentInputMaps must be associated with a non-null JComponent"); |
| } |
| } |
| |
| /** |
| * Sets the parent, which must be a <code>ComponentInputMap</code> |
| * associated with the same component as this |
| * <code>ComponentInputMap</code>. |
| * |
| * @param map a <code>ComponentInputMap</code> |
| * |
| * @throws IllegalArgumentException if <code>map</code> |
| * is not a <code>ComponentInputMap</code> |
| * or is not associated with the same component |
| */ |
| public void setParent(InputMap map) { |
| if (getParent() == map) { |
| return; |
| } |
| if (map != null && (!(map instanceof ComponentInputMap) || |
| ((ComponentInputMap)map).getComponent() != getComponent())) { |
| throw new IllegalArgumentException("ComponentInputMaps must have a parent ComponentInputMap associated with the same component"); |
| } |
| super.setParent(map); |
| getComponent().componentInputMapChanged(this); |
| } |
| |
| /** |
| * Returns the component the <code>InputMap</code> was created for. |
| */ |
| public JComponent getComponent() { |
| return component; |
| } |
| |
| /** |
| * Adds a binding for <code>keyStroke</code> to <code>actionMapKey</code>. |
| * If <code>actionMapKey</code> is null, this removes the current binding |
| * for <code>keyStroke</code>. |
| */ |
| public void put(KeyStroke keyStroke, Object actionMapKey) { |
| super.put(keyStroke, actionMapKey); |
| if (getComponent() != null) { |
| getComponent().componentInputMapChanged(this); |
| } |
| } |
| |
| /** |
| * Removes the binding for <code>key</code> from this object. |
| */ |
| public void remove(KeyStroke key) { |
| super.remove(key); |
| if (getComponent() != null) { |
| getComponent().componentInputMapChanged(this); |
| } |
| } |
| |
| /** |
| * Removes all the mappings from this object. |
| */ |
| public void clear() { |
| int oldSize = size(); |
| super.clear(); |
| if (oldSize > 0 && getComponent() != null) { |
| getComponent().componentInputMapChanged(this); |
| } |
| } |
| } |