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Diffstat (limited to 'libjava/classpath/javax/swing/AbstractAction.java')
| -rw-r--r-- | libjava/classpath/javax/swing/AbstractAction.java | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/libjava/classpath/javax/swing/AbstractAction.java b/libjava/classpath/javax/swing/AbstractAction.java deleted file mode 100644 index 535a3e7..0000000 --- a/libjava/classpath/javax/swing/AbstractAction.java +++ /dev/null @@ -1,276 +0,0 @@ -/* 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 (<code>null</code> 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 (<code>null</code> permitted). - * @param icon the icon (<code>null</code> 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 <code>null</code>). - * - * @return The value associated with the specified key, or - * <code>null</code> 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: - * <ul> - * <li>{@link #NAME}</li> - * <li>{@link #SHORT_DESCRIPTION}</li> - * <li>{@link #LONG_DESCRIPTION}</li> - * <li>{@link #SMALL_ICON}</li> - * <li>{@link #ACTION_COMMAND_KEY}</li> - * <li>{@link #ACCELERATOR_KEY}</li> - * <li>{@link #MNEMONIC_KEY}</li> - * </ul> - * Any existing value associated with the key will be overwritten. - * - * @param key the key (not <code>null</code>). - * @param value the value (<code>null</code> 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(); - } -} |