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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/javax/swing/ComponentInputMap.java | |
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Diffstat (limited to 'libjava/classpath/javax/swing/ComponentInputMap.java')
-rw-r--r-- | libjava/classpath/javax/swing/ComponentInputMap.java | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/libjava/classpath/javax/swing/ComponentInputMap.java b/libjava/classpath/javax/swing/ComponentInputMap.java new file mode 100644 index 000000000..dc4d0bfd4 --- /dev/null +++ b/libjava/classpath/javax/swing/ComponentInputMap.java @@ -0,0 +1,141 @@ +/* ComponentInputMap.java -- + Copyright (C) 2002, 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package javax.swing; + + +/** + * An {@link InputMap} that is associated with a particular {@link JComponent}. + * The component is notified when its <code>ComponentInputMap</code> changes. + * + * @author Andrew Selkirk + * @author Michael Koch + */ +public class ComponentInputMap extends InputMap +{ + /** + * The component to notify. + */ + private JComponent component; + + /** + * Creates <code>ComponentInputMap</code> object that notifies the given + * component about changes to it. + * + * @param comp the component to notify + * + * @exception IllegalArgumentException if comp is null + */ + public ComponentInputMap(JComponent comp) + { + if (comp == null) + throw new IllegalArgumentException(); + + this.component = comp; + } + + /** + * Puts a new entry into the <code>InputMap</code>. + * If actionMapKey is null an existing entry will be removed. + * + * @param keystroke the keystroke for the entry + * @param value the action. + */ + public void put(KeyStroke keystroke, Object value) + { + super.put(keystroke, value); + if (component != null) + component.updateComponentInputMap(this); + } + + /** + * Clears the <code>InputMap</code>. + */ + public void clear() + { + super.clear(); + if (component != null) + component.updateComponentInputMap(this); + } + + /** + * Remove an entry from the <code>InputMap</code>. + * + * @param keystroke the key of the entry to remove + */ + public void remove(KeyStroke keystroke) + { + super.remove(keystroke); + if (component != null) + component.updateComponentInputMap(this); + } + + /** + * Sets a parent for this <code>ComponentInputMap</code>. + * + * @param parentMap the new parent + * + * @exception IllegalArgumentException if parentMap is not a + * <code>ComponentInputMap</code> or not associated with the same component + */ + public void setParent(InputMap parentMap) + { + if (parentMap != null && !(parentMap instanceof ComponentInputMap)) + throw new IllegalArgumentException("ComponentInputMaps can only have " + + "ComponentInputMaps for parents"); + + if (parentMap != null && + ((ComponentInputMap) parentMap).getComponent() != component) + throw new + IllegalArgumentException("ComponentInputMaps' parents must " + + "be associated with the same JComponents"); + + super.setParent(parentMap); + if (component != null) + component.updateComponentInputMap(this); + } + + /** + * Returns the component to notify about changes. + * + * @return a <code>JComponent</code> object + */ + public JComponent getComponent() + { + return component; + } +} |