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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 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.ArrayContentProvider;
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15
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16 import dwtx.jface.viewers.IStructuredContentProvider;
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17 import dwtx.jface.viewers.Viewer;
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18
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19 import tango.util.collection.model.View;
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20
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21 import dwt.dwthelper.utils;
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22
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23 /**
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24 * This implementation of <code>IStructuredContentProvider</code> handles
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25 * the case where the viewer input is an unchanging array or collection of elements.
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26 * <p>
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27 * This class is not intended to be subclassed outside the viewer framework.
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28 * </p>
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29 *
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30 * @since 2.1
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31 */
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32 public class ArrayContentProvider : IStructuredContentProvider {
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33
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34 /**
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35 * Returns the elements in the input, which must be either an array or a
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36 * <code>Collection</code>.
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37 */
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38 public Object[] getElements(Object inputElement) {
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39 if ( auto aw = cast(ArrayWrapperObject) inputElement ) {
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40 return aw.array;
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41 }
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42 if ( auto col = cast(View!(Object)) inputElement ) {
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43 return col.toArray();
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44 }
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45 return null;
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46 }
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47
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48 /**
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49 * This implementation does nothing.
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50 */
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51 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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52 // do nothing.
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53 }
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54
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55 /**
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56 * This implementation does nothing.
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57 */
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58 public void dispose() {
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59 // do nothing.
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60 }
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61 }
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