org.apache.xmlgraphics.image.loader.impl

Class PreloaderBMP

java.lang.Object

org.apache.xmlgraphics.image.loader.impl.AbstractImagePreloader

org.apache.xmlgraphics.image.loader.impl.PreloaderBMP

All Implemented Interfaces:

ImagePreloader

public class PreloaderBMP
extends AbstractImagePreloader

Image preloader for BMP images.

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	BMP_SIG_LENGTH Length of the BMP header

Fields inherited from interface org.apache.xmlgraphics.image.loader.spi.ImagePreloader

DEFAULT_PRIORITY

Constructor Summary

Constructors

Constructor and Description
PreloaderBMP()

Method Summary

Methods

Modifier and Type	Method and Description
ImageInfo	preloadImage(java.lang.String uri, javax.xml.transform.Source src, ImageContext context) "Preloads" an image, i.e.

Methods inherited from class org.apache.xmlgraphics.image.loader.impl.AbstractImagePreloader

getHeader, getPriority

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BMP_SIG_LENGTH

protected static final int BMP_SIG_LENGTH

Length of the BMP header

See Also:

Constant Field Values

Constructor Detail

PreloaderBMP

public PreloaderBMP()

Method Detail

preloadImage

public ImageInfo preloadImage(java.lang.String uri,
                     javax.xml.transform.Source src,
                     ImageContext context)
                       throws java.io.IOException,
                              ImageException

"Preloads" an image, i.e. indentifies whether the source image is supported by this implementation and determines the image's intrinsic size and possibly some additional information. The image is usually not fully loaded at this time to conserve memory.

Parameters:

uri - the original (unresolved) URI of the image

src - a image source the image is loaded from

context - the context object that provides configuration information

Returns:

an image info object with the basic information about an image

Throws:

java.io.IOException - if an I/O error occurs while preloading the image

ImageException - if an error occurs while preloading the image