Mercurial > projects > dwt-addons
view dwtx/jface/action/AbstractAction.d @ 104:04b47443bb01
Reworked the collection uses to make use of a wrapper collection that is compatible to the Java Collections.
These new wrappers now use the tango.util.containers instead of the tango.util.collections.
author | Frank Benoit <benoit@tionex.de> |
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date | Thu, 07 Aug 2008 15:01:33 +0200 |
parents | e0f0aaf75edd |
children |
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/******************************************************************************* * Copyright (c) 2005, 2007 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwtx.jface.action.AbstractAction; import dwtx.jface.action.IAction; import dwtx.core.commands.common.EventManager; import dwtx.jface.util.IPropertyChangeListener; import dwtx.jface.util.PropertyChangeEvent; import dwt.dwthelper.utils; /** * <p> * Some common functionality to share between implementations of * <code>IAction</code>. This functionality deals with the property change * event mechanism. * </p> * <p> * Clients may neither instantiate nor extend this class. * </p> * * @since 3.2 */ public abstract class AbstractAction : EventManager, IAction { public void addPropertyChangeListener(IPropertyChangeListener listener) { addListenerObject(cast(Object)listener); } /** * Notifies any property change listeners that a property has changed. Only * listeners registered at the time this method is called are notified. * * @param event * the property change event * * @see dwtx.jface.util.IPropertyChangeListener#propertyChange(PropertyChangeEvent) */ protected final void firePropertyChange(PropertyChangeEvent event) { final Object[] list = getListeners(); for (int i = 0; i < list.length; ++i) { (cast(IPropertyChangeListener) list[i]).propertyChange(event); } } /** * Notifies any property change listeners that a property has changed. Only * listeners registered at the time this method is called are notified. This * method avoids creating an event object if there are no listeners * registered, but calls * <code>firePropertyChange(PropertyChangeEvent)</code> if there are. * * @param propertyName * the name of the property that has changed * @param oldValue * the old value of the property, or <code>null</code> if none * @param newValue * the new value of the property, or <code>null</code> if none * * @see dwtx.jface.util.IPropertyChangeListener#propertyChange(PropertyChangeEvent) */ protected final void firePropertyChange(String propertyName, Object oldValue, Object newValue) { if (isListenerAttached()) { firePropertyChange(new PropertyChangeEvent(this, propertyName, oldValue, newValue)); } } public void removePropertyChangeListener( IPropertyChangeListener listener) { removeListenerObject(cast(Object)listener); } }