| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.custom; |
| |
| |
| 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); |
| } |
| |
| |