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package org.eclipse.swt.graphics;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved
*/
import java.util.*;
/**
* 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 EventObject {
/**
* 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 point
*/
public String toString () {
return "ImageLoaderEvent {source=" + source + " imageData=" + imageData + " incrementCount=" + incrementCount + " endOfImage=" + endOfImage + "}";
}
}
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