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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 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 module org.eclipse.swt.events.TreeListener;
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14
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15 import java.lang.all;
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16
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17
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18 public import org.eclipse.swt.internal.SWTEventListener;
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19 public import org.eclipse.swt.events.TreeEvent;
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20
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21 /**
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22 * Classes which implement this interface provide methods
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23 * that deal with the expanding and collapsing of tree
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24 * branches.
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25 * <p>
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26 * After creating an instance of a class that :
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27 * this interface it can be added to a tree control using the
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28 * <code>addTreeListener</code> method and removed using
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29 * the <code>removeTreeListener</code> method. When a branch
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30 * of the tree is expanded or collapsed, the appropriate method
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31 * will be invoked.
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32 * </p>
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33 *
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34 * @see TreeAdapter
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35 * @see TreeEvent
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36 */
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37 public interface TreeListener : SWTEventListener {
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38
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39 /**
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40 * Sent when a tree branch is collapsed.
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41 *
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42 * @param e an event containing information about the tree operation
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43 */
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44 public void treeCollapsed(TreeEvent e);
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45
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46 /**
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47 * Sent when a tree branch is expanded.
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48 *
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49 * @param e an event containing information about the tree operation
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50 */
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51 public void treeExpanded(TreeEvent e);
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52 }
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