org.apache.fop.image.analyser
Class PNGReader

java.lang.Object
  org.apache.fop.image.analyser.PNGReader

All Implemented Interfaces:

ImageReader

public class PNGReader
extends java.lang.Object
implements ImageReader

ImageReader object for PNG image type.

Version:

$Id: PNGReader.java 540052 2007-05-21 07:59:05Z jeremias $

Author:

Pankaj Narula

Constructor Summary

PNGReader()

Method Summary

java.lang.String	getMimeType() Returns the MIME type supported by this implementation.
FopImage.ImageInfo	verifySignature(java.lang.String uri, java.io.InputStream bis, FOUserAgent ua) Verify image type.

Methods inherited from class java.lang.Object

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

Constructor Detail

PNGReader

public PNGReader()

Method Detail

verifySignature

public FopImage.ImageInfo verifySignature(java.lang.String uri,
                                          java.io.InputStream bis,
                                          FOUserAgent ua)
                                   throws java.io.IOException

Description copied from interface: ImageReader

Verify image type. If the stream does not contain image data expected by the reader it must reset the stream to the start. This is so that the next reader can start reading from the start. The reader must not close the stream unless it can handle the image and it has read the information.

Specified by:

verifySignature in interface ImageReader

Parameters:

uri - URI to the image

bis - Image buffered input stream

ua - The user agent

Returns:

true if image type is the handled one

Throws:

java.io.IOException - if an I/O error occurs

See Also:

ImageReader

getMimeType

public java.lang.String getMimeType()

Returns the MIME type supported by this implementation.

Returns:

The MIME type