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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2003 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 *******************************************************************************/
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11 module org.eclipse.swt.events.TreeAdapter;
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12
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13 import org.eclipse.swt.events.TreeListener;
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14
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15 /**
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16 * This adapter class provides default implementations for the
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17 * methods described by the <code>TreeListener</code> interface.
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18 * <p>
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19 * Classes that wish to deal with <code>TreeEvent</code>s can
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20 * extend this class and override only the methods which they are
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21 * interested in.
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22 * </p>
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23 *
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24 * @see TreeListener
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25 * @see TreeEvent
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26 */
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27 public abstract class TreeAdapter : TreeListener {
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28
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29 /**
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30 * Sent when a tree branch is collapsed.
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31 * The default behavior is to do nothing.
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32 *
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33 * @param e an event containing information about the tree operation
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34 */
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35 public void treeCollapsed(TreeEvent e) {
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36 }
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37
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38 /**
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39 * Sent when a tree branch is expanded.
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40 * The default behavior is to do nothing.
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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 treeExpanded(TreeEvent e) {
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45 }
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46 }
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