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 + "}"; | |
} | |
} |