Package org.apache.xmlgraphics.image.loader.impl

Class PreloaderEPS

java.lang.Object

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

org.apache.xmlgraphics.image.loader.impl.PreloaderEPS

All Implemented Interfaces:

ImagePreloader

public class PreloaderEPS
extends AbstractImagePreloader

Image preloader for EPS images (Encapsulated PostScript).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PreloaderEPS.EPSBinaryFileHeader	Holder class for various pointers to the contents of the EPS file.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.Object	EPS_BINARY_HEADER	Key for binary header object used in custom objects of the ImageInfo class.
static java.lang.Object	EPS_BOUNDING_BOX	Key for bounding box used in custom objects of the ImageInfo class.

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

DEFAULT_PRIORITY

Constructor Summary

Constructors

Constructor	Description
PreloaderEPS()

Method Summary

Modifier and Type	Method	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

EPS_BINARY_HEADER

public static final java.lang.Object EPS_BINARY_HEADER

Key for binary header object used in custom objects of the ImageInfo class.

EPS_BOUNDING_BOX

public static final java.lang.Object EPS_BOUNDING_BOX

Key for bounding box used in custom objects of the ImageInfo class.

Constructor Detail

PreloaderEPS

public PreloaderEPS()

Method Detail

preloadImage

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

"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. The method returns null if the image was not identified. An ImageException is only thrown if the image is identified but some error has happened while working on the file.

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 or null if the image is not supported by this implementation

Throws:

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