org.apache.xmlgraphics.image.loader.impl
Class ImageLoaderPNG

java.lang.Object
  org.apache.xmlgraphics.image.loader.impl.AbstractImageLoader
      org.apache.xmlgraphics.image.loader.impl.ImageLoaderPNG

All Implemented Interfaces:

ImageLoader

public class ImageLoaderPNG
extends AbstractImageLoader

Field Summary

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

MEDIUM_LOADING_PENALTY, NO_LOADING_PENALTY

Constructor Summary

ImageLoaderPNG()

Method Summary

ImageFlavor	getTargetFlavor() Returns the image flavor that is returned by this ImageLoader implementation.
int	getUsagePenalty() Returns the penalty assigned to using this image loader.
Image	loadImage(ImageInfo info, java.util.Map hints, ImageSessionContext session) Loads and returns an image.

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

ignoreColorProfile, loadImage

Methods inherited from class java.lang.Object

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

Constructor Detail

ImageLoaderPNG

public ImageLoaderPNG()

Method Detail

loadImage

public Image loadImage(ImageInfo info,
                       java.util.Map hints,
                       ImageSessionContext session)
                throws ImageException,
                       java.io.IOException

Loads and returns an image.

Parameters:

info - the image info object indicating the image

hints - a Map of hints that can be used by implementations to customize the loading process (may be null).

session - the session context

Returns:

the fully loaded image

Throws:

ImageException - if an error occurs while loading the image

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

getTargetFlavor

public ImageFlavor getTargetFlavor()

Returns the image flavor that is returned by this ImageLoader implementation.

Returns:

the target image flavor

getUsagePenalty

public int getUsagePenalty()

Returns the penalty assigned to using this image loader. The value is used to select the best processing chain for images.

Specified by:

getUsagePenalty in interface ImageLoader

Overrides:

getUsagePenalty in class AbstractImageLoader

Returns:

the usage penalty (must be a non-negative integer)