From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libjava/classpath/javax/swing/AbstractAction.java | 276 ++++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 libjava/classpath/javax/swing/AbstractAction.java (limited to 'libjava/classpath/javax/swing/AbstractAction.java') diff --git a/libjava/classpath/javax/swing/AbstractAction.java b/libjava/classpath/javax/swing/AbstractAction.java new file mode 100644 index 000000000..535a3e71e --- /dev/null +++ b/libjava/classpath/javax/swing/AbstractAction.java @@ -0,0 +1,276 @@ +/* AbstractAction.java -- + Copyright (C) 2002, 2004, 2005, 2006 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; + +import java.beans.PropertyChangeEvent; +import java.beans.PropertyChangeListener; +import java.io.Serializable; +import java.util.HashMap; + +import javax.swing.event.SwingPropertyChangeSupport; + +/** + * A base class for implementing the {@link Action} interface. + * + * @author Andrew Selkirk + */ +public abstract class AbstractAction + implements Action, Cloneable, Serializable +{ + private static final long serialVersionUID = -6803159439231523484L; + + /** + * A flag that indicates whether or not the action is enabled. + */ + protected boolean enabled = true; + + /** + * Provides support for property change event notification. + */ + protected SwingPropertyChangeSupport changeSupport = + new SwingPropertyChangeSupport(this); + + /** + * store + */ + private transient HashMap store = new HashMap(); + + /** + * Creates a new action with no properties set. + */ + public AbstractAction() + { + // Nothing to do. + } + + /** + * Creates a new action with the specified name. The name is stored as a + * property with the key {@link Action#NAME}, and no other properties are + * initialised. + * + * @param name the name (null permitted). + */ + public AbstractAction(String name) + { + putValue(NAME, name); + } + + /** + * Creates a new action with the specified name and icon. The name is stored + * as a property with the key {@link Action#NAME}, the icon is stored as a + * property with the key {@link Action#SMALL_ICON}, and no other properties + * are initialised. + * + * @param name the name (null permitted). + * @param icon the icon (null permitted). + */ + public AbstractAction(String name, Icon icon) + { + putValue(NAME, name); + putValue(SMALL_ICON, icon); + } + + /** + * Returns a clone of the action. + * + * @return A clone of the action. + * + * @exception CloneNotSupportedException if there is a problem cloning the + * action. + */ + protected Object clone() throws CloneNotSupportedException + { + AbstractAction copy = (AbstractAction) super.clone(); + copy.store = (HashMap) store.clone(); + return copy; + } + + /** + * Returns the value associated with the specified key. + * + * @param key the key (not null). + * + * @return The value associated with the specified key, or + * null if the key is not found. + * + * @see #putValue(String, Object) + */ + public Object getValue(String key) + { + return store.get(key); + } + + /** + * Sets the value associated with the specified key and sends a + * {@link java.beans.PropertyChangeEvent} to all registered listeners. + * The standard keys are: + * + * Any existing value associated with the key will be overwritten. + * + * @param key the key (not null). + * @param value the value (null permitted). + */ + public void putValue(String key, Object value) + { + Object old = getValue(key); + if ((old == null && value != null) || (old != null && !old.equals(value))) + { + store.put(key, value); + firePropertyChange(key, old, value); + } + } + + /** + * Returns the flag that indicates whether or not the action is enabled. + * + * @return The flag. + * + * @see #setEnabled(boolean) + */ + public boolean isEnabled() + { + return enabled; + } + + /** + * Sets the flag that indicates whether or not the action is enabled and, if + * the value of the flag changed from the previous setting, sends a + * {@link java.beans.PropertyChangeEvent} to all registered listeners (using + * the property name 'enabled'). + * + * @param enabled the new flag value. + * + * @see #isEnabled() + */ + public void setEnabled(boolean enabled) + { + if (enabled != this.enabled) + { + this.enabled = enabled; + firePropertyChange("enabled", !this.enabled, this.enabled); + } + } + + /** + * Returns an array of the keys for the property values that have been + * defined via the {@link #putValue(String, Object)} method (or the class + * constructor). + * + * @return An array of keys. + */ + public Object[] getKeys() + { + return store.keySet().toArray(); + } + + /** + * Sends a {@link PropertyChangeEvent} for the named property to all + * registered listeners. + * + * @param propertyName the property name. + * @param oldValue the old value of the property. + * @param newValue the new value of the property. + */ + protected void firePropertyChange(String propertyName, Object oldValue, + Object newValue) + { + changeSupport.firePropertyChange(propertyName, oldValue, newValue); + } + + /** + * Sends a {@link PropertyChangeEvent} for the named property to all + * registered listeners. This private method is called by the + * {@link #setEnabled(boolean)} method. + * + * @param propertyName the property name. + * @param oldValue the old value of the property. + * @param newValue the new value of the property. + */ + private void firePropertyChange(String propertyName, boolean oldValue, + boolean newValue) + { + changeSupport.firePropertyChange(propertyName, oldValue, newValue); + } + + /** + * Registers a listener to receive {@link PropertyChangeEvent} notifications + * from this action. + * + * @param listener the listener. + * + * @see #removePropertyChangeListener(PropertyChangeListener) + */ + public void addPropertyChangeListener(PropertyChangeListener listener) + { + changeSupport.addPropertyChangeListener(listener); + } + + /** + * Deregisters a listener so that it no longer receives + * {@link PropertyChangeEvent} notifications from this action. + * + * @param listener the listener. + * + * @see #addPropertyChangeListener(PropertyChangeListener) + */ + public void removePropertyChangeListener(PropertyChangeListener listener) + { + changeSupport.removePropertyChangeListener(listener); + } + + /** + * Returns all registered listeners. + * + * @return An array of listeners. + * + * @since 1.4 + */ + public PropertyChangeListener[] getPropertyChangeListeners() + { + return changeSupport.getPropertyChangeListeners(); + } +} -- cgit v1.2.3