Mercurial > projects > dwt-addons
view dwtx/jface/resource/ResourceRegistry.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 | 8a302fdb4140 |
children |
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/******************************************************************************* * Copyright (c) 2004, 2005 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.resource.ResourceRegistry; import dwtx.core.commands.common.EventManager; import dwtx.jface.util.IPropertyChangeListener; import dwtx.jface.util.PropertyChangeEvent; import dwt.dwthelper.utils; import dwtx.dwtxhelper.Collection; /** * Abstract base class for various JFace registries. * * @since 3.0 */ public abstract class ResourceRegistry : EventManager { /** * Adds a property change listener to this registry. * * @param listener a property change listener */ public void addListener(IPropertyChangeListener listener) { addListenerObject(cast(Object)listener); } /** * Disposes all currently allocated resources. */ protected abstract void clearCaches(); /** * @return the set of keys this manager knows about. This collection * should be immutable. */ public abstract Set getKeySet(); /** * Return whether or not the receiver has a value for the supplied key. * * @param key the key * @return <code>true</code> if there is a value for this key */ public abstract bool hasValueFor(String key); /** * Fires a <code>PropertyChangeEvent</code>. * * @param name the name of the symbolic value that is changing. * @param oldValue the old value. * @param newValue the new value. */ protected void fireMappingChanged(String name, Object oldValue, Object newValue) { Object[] myListeners = getListeners(); if (myListeners.length > 0) { PropertyChangeEvent event = new PropertyChangeEvent(this, name, oldValue, newValue); for (int i = 0; i < myListeners.length; ++i) { try { (cast(IPropertyChangeListener) myListeners[i]) .propertyChange(event); } catch (Exception e) { // TODO: how to log? } } } } /** * Removes the given listener from this registry. Has no affect if the * listener is not registered. * * @param listener a property change listener */ public void removeListener(IPropertyChangeListener listener) { removeListenerObject(cast(Object)listener); } }