1 /******************************************************************************* 2 * Copyright (c) 2000, 2006 IBM Corporation and others. 3 * All rights reserved. This program and the accompanying materials 4 * are made available under the terms of the Eclipse Public License v1.0 5 * which accompanies this distribution, and is available at 6 * http://www.eclipse.org/legal/epl-v10.html 7 * 8 * Contributors: 9 * IBM Corporation - initial API and implementation 10 *******************************************************************************/ 11 package org.eclipse.swt.custom; 12 13 14 import org.eclipse.swt.internal.SWTEventListener; 15 /** 16 * This listener is invoked when an object needs to be drawn. 17 * 18 * @since 3.2 19 */ 20 public interface PaintObjectListener extends SWTEventListener { 21 /** 22 * This method is called when an object needs to be drawn. 23 * 24 * <p> 25 * The following event fields are used:<ul> 26 * <li>event.x the x location (input)</li> 27 * <li>event.y the y location (input)</li> 28 * <li>event.ascent the line ascent (input)</li> 29 * <li>event.descent the line descent (input)</li> 30 * <li>event.gc the gc (input)</li> 31 * <li>event.style the style (input)</li> 32 * </ul> 33 * 34 * @param event the event 35 * 36 * @see PaintObjectEvent 37 * @see StyledText#addPaintObjectListener(PaintObjectListener) 38 */ 39 public void paintObject(PaintObjectEvent event); 40 } 41