package org.eclipse.swt.custom; | |
/* | |
* Copyright (c) 2000, 2002 IBM Corp. All rights reserved. | |
* This file is made available under the terms of the Common Public License v1.0 | |
* which accompanies this distribution, and is available at | |
* http://www.eclipse.org/legal/cpl-v10.html | |
*/ | |
import org.eclipse.swt.internal.SWTEventListener; | |
/** | |
* The StyledText widget implements this listener to receive | |
* notifications when changes to the model occur. | |
* It is not intended to be implemented by clients or by | |
* implementors of StyledTextContent. | |
* Clients should listen to the ModifyEvent or ExtendedModifyEvent | |
* that is sent by the StyledText widget to receive text change | |
* notifications. | |
* Implementors of StyledTextContent should call the textChanging | |
* and textChanged methods when text changes occur as described | |
* below. If the entire text is replaced the textSet method | |
* should be called instead. | |
*/ | |
public interface TextChangeListener extends SWTEventListener { | |
/** | |
* This method is called when the content is about to be changed. | |
* Callers also need to call the textChanged method after the | |
* content change has been applied. The widget only updates the | |
* screen properly when it receives both events. | |
* | |
* @param event the text changing event. All event fields need | |
* to be set by the sender. | |
* @see TextChangingEvent | |
*/ | |
public void textChanging(TextChangingEvent event); | |
/** | |
* This method is called when the content has changed. | |
* Callers need to have called the textChanging method prior to | |
* applying the content change and calling this method. The widget | |
* only updates the screen properly when it receives both events. | |
* | |
* @param event the text changed event | |
*/ | |
public void textChanged(TextChangedEvent event); | |
/** | |
* This method is called instead of the textChanging/textChanged | |
* combination when the entire old content has been replaced | |
* (e.g., by a call to StyledTextContent.setText()). | |
* | |
* @param event the text changed event | |
*/ | |
public void textSet(TextChangedEvent event); | |
} | |