org.apache.fop.image
Class PNGImage

java.lang.Object
  org.apache.fop.image.AbstractFopImage
      org.apache.fop.image.XmlGraphicsCommonsImage
          org.apache.fop.image.PNGImage

All Implemented Interfaces:

FopImage

public class PNGImage

extends XmlGraphicsCommonsImage

FopImage object using PNG

Author:

Eric SCHAEFFER

See Also:

AbstractFopImage, FopImage

Nested Class Summary

Nested classes inherited from class org.apache.fop.image.FopImage

FopImage.ImageInfo

Field Summary

Fields inherited from class org.apache.fop.image.XmlGraphicsCommonsImage

cr, seekableInput

Fields inherited from class org.apache.fop.image.AbstractFopImage

bitmaps, bitsPerPixel, colorSpace, dpiHorizontal, dpiVertical, height, imageInfo, inputStream, invertImage, isTransparent, loaded, log, raw, transparentColor, width

Fields inherited from interface org.apache.fop.image.FopImage

BITMAP, DIMENSIONS, ORIGINAL_DATA

Constructor Summary

PNGImage(FopImage.ImageInfo imgReader)
Constructs a new PNGImage instance.

Method Summary

protected org.apache.xmlgraphics.image.rendered.CachableRed	decodeImage(org.apache.xmlgraphics.image.codec.util.SeekableStream stream) Decodes the image from the stream.
protected boolean	loadOriginalData() Load the original PNG data.

Methods inherited from class org.apache.fop.image.XmlGraphicsCommonsImage

getSoftMask, hasSoftMask, loadBitmap, loadDimensions, loadImage

Methods inherited from class org.apache.fop.image.AbstractFopImage

getBitmaps, getBitmapsSize, getBitsPerPixel, getColorSpace, getHeight, getHorizontalResolution, getICCProfile, getIntrinsicHeight, getIntrinsicWidth, getMimeType, getOriginalURI, getRessourceBytes, getRessourceBytesSize, getTransparentColor, getVerticalResolution, getWidth, isInverted, isTransparent, load, loadDefaultOriginalData

Methods inherited from class java.lang.Object

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

Constructor Detail

PNGImage

public PNGImage(FopImage.ImageInfo imgReader)

Constructs a new PNGImage instance.

Parameters:

imgReader - basic metadata for the image

Method Detail

decodeImage

protected org.apache.xmlgraphics.image.rendered.CachableRed decodeImage(org.apache.xmlgraphics.image.codec.util.SeekableStream stream)
                                                                 throws java.io.IOException

Description copied from class: XmlGraphicsCommonsImage

Decodes the image from the stream.

Specified by:

decodeImage in class XmlGraphicsCommonsImage

Parameters:

stream - the stream to read the image from

Returns:

the decoded image

Throws:

java.io.IOException - in case an I/O problem occurs

See Also:

XmlGraphicsCommonsImage.decodeImage( org.apache.xmlgraphics.image.codec.util.SeekableStream)

loadOriginalData

protected boolean loadOriginalData()

Load the original PNG data. This loads the original PNG data as is into memory.

Overrides:

loadOriginalData in class AbstractFopImage

Returns:

true if loaded false for any error