?? imageloaderevent.java
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/******************************************************************************* * Copyright (c) 2000, 2003 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are 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 * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/package org.eclipse.swt.graphics;import org.eclipse.swt.internal.SWTEventObject;/** * Instances of this class are sent as a result of the incremental * loading of image data. * <p> * <b>Notes:</b> * </p><ul> * <li>The number of events which will be sent when loading images * is not constant. It varies by image type, and for JPEG images it * varies from image to image.</li> * <li>For image sources which contain multiple images, the * <code>endOfImage</code> flag in the event will be set to true * after each individual image is loaded.</li> * </ul> * * @see ImageLoader * @see ImageLoaderListener */public class ImageLoaderEvent extends SWTEventObject { /** * if the <code>endOfImage</code> flag is false, then this is a * partially complete copy of the current <code>ImageData</code>, * otherwise this is a completely loaded <code>ImageData</code> */ public ImageData imageData; /** * the zero-based count of image data increments -- this is * equivalent to the number of events that have been generated * while loading a particular image */ public int incrementCount; /** * If this flag is true, then the current image data has been * completely loaded, otherwise the image data is only partially * loaded, and further ImageLoader events will occur unless an * exception is thrown */ public boolean endOfImage; /** * Constructs a new instance of this class given the event source and * the values to store in its fields. * * @param source the ImageLoader that was loading when the event occurred * @param imageData the image data for the event * @param incrementCount the image data increment for the event * @param endOfImage the end of image flag for the event */public ImageLoaderEvent(ImageLoader source, ImageData imageData, int incrementCount, boolean endOfImage) { super(source); this.imageData = imageData; this.incrementCount = incrementCount; this.endOfImage = endOfImage;}/** * Returns a string containing a concise, human-readable * description of the receiver. * * @return a string representation of the event */public String toString () { return "ImageLoaderEvent {source=" + source + " imageData=" + imageData + " incrementCount=" + incrementCount + " endOfImage=" + endOfImage + "}"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$}}
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