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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 * 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.custom.TextChangeListener;
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14
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15
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16 import org.eclipse.swt.internal.SWTEventListener;
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17 import org.eclipse.swt.custom.TextChangingEvent;
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18 import org.eclipse.swt.custom.TextChangedEvent;
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19
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20 /**
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21 * The StyledText widget implements this listener to receive
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22 * notifications when changes to the model occur.
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23 * It is not intended to be implemented by clients or by
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24 * implementors of StyledTextContent.
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25 * Clients should listen to the ModifyEvent or ExtendedModifyEvent
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26 * that is sent by the StyledText widget to receive text change
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27 * notifications.
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28 * Implementors of StyledTextContent should call the textChanging
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29 * and textChanged methods when text changes occur as described
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30 * below. If the entire text is replaced the textSet method
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31 * should be called instead.
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32 */
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33 public interface TextChangeListener : SWTEventListener {
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34
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35 /**
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36 * This method is called when the content is about to be changed.
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37 * Callers also need to call the textChanged method after the
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38 * content change has been applied. The widget only updates the
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39 * screen properly when it receives both events.
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40 *
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41 * @param event the text changing event. All event fields need
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42 * to be set by the sender.
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43 * @see TextChangingEvent
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44 */
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45 public void textChanging(TextChangingEvent event);
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46 /**
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47 * This method is called when the content has changed.
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48 * Callers need to have called the textChanging method prior to
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49 * applying the content change and calling this method. The widget
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50 * only updates the screen properly when it receives both events.
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51 *
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52 * @param event the text changed event
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53 */
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54 public void textChanged(TextChangedEvent event);
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55 /**
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56 * This method is called instead of the textChanging/textChanged
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57 * combination when the entire old content has been replaced
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58 * (e.g., by a call to StyledTextContent.setText()).
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59 *
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60 * @param event the text changed event
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61 */
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62 public void textSet(TextChangedEvent event);
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63 }
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64
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65
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