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1 /*******************************************************************************
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2 * Copyright (c) 2006, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13
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14 module dwtx.jface.viewers.BaseLabelProvider;
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15
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16 import dwtx.jface.viewers.IBaseLabelProvider;
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17 import dwtx.jface.viewers.ILabelProviderListener;
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18 import dwtx.jface.viewers.LabelProviderChangedEvent;
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19
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20 import dwtx.core.commands.common.EventManager;
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21 import dwtx.jface.util.SafeRunnable;
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22
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23 import dwt.dwthelper.utils;
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24
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25 /**
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26 * BaseLabelProvider is a default concrete implementation of
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27 * {@link IBaseLabelProvider}
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28 *
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29 * @since 3.3
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30 *
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31 */
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32 public class BaseLabelProvider : EventManager, IBaseLabelProvider {
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33
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34 /* (non-Javadoc)
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35 * Method declared on IBaseLabelProvider.
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36 */
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37 public void addListener(ILabelProviderListener listener) {
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38 addListenerObject(cast(Object)listener);
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39 }
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40
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41 /**
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42 * The <code>BaseLabelProvider</code> implementation of this
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43 * <code>IBaseLabelProvider</code> method clears its internal listener list.
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44 * Subclasses may extend but should call the super implementation.
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45 */
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46 public void dispose() {
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47 clearListeners();
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48 }
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49
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50 /**
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51 * The <code>BaseLabelProvider</code> implementation of this
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52 * <code>IBaseLabelProvider</code> method returns <code>true</code>. Subclasses may
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53 * override.
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54 */
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55 public bool isLabelProperty(Object element, String property) {
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56 return true;
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57 }
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58
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59
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60 /* (non-Javadoc)
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61 * @see dwtx.jface.viewers.IBaseLabelProvider#removeListener(dwtx.jface.viewers.ILabelProviderListener)
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62 */
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63 public void removeListener(ILabelProviderListener listener) {
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64 removeListenerObject(cast(Object)listener);
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65 }
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66
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67 /**
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68 * Fires a label provider changed event to all registered listeners Only
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69 * listeners registered at the time this method is called are notified.
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70 *
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71 * @param event
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72 * a label provider changed event
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73 *
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74 * @see ILabelProviderListener#labelProviderChanged
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75 */
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76 protected void fireLabelProviderChanged(LabelProviderChangedEvent event) {
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77 Object[] listeners = getListeners();
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78 for (int i = 0; i < listeners.length; ++i) {
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79 SafeRunnable.run(new class SafeRunnable {
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80 LabelProviderChangedEvent event_;
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81 ILabelProviderListener l;
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82 this(){
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83 event_=event;
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84 l = cast(ILabelProviderListener) listeners[i];
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85 }
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86 public void run() {
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87 l.labelProviderChanged(event_);
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88 }
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89 });
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90
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91 }
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92 }
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93 }
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