org.apache.fop.image.analyser
Class PNGReader

java.lang.Object
  extended byorg.apache.fop.image.analyser.AbstractImageReader
      extended byorg.apache.fop.image.analyser.PNGReader
All Implemented Interfaces:
ImageReader

public class PNGReader
extends AbstractImageReader

ImageReader object for PNG image type.

Author:
Pankaj Narula

Field Summary
protected  byte[] header
           
protected static int PNG_SIG_LENGTH
           
 
Fields inherited from class org.apache.fop.image.analyser.AbstractImageReader
height, imageStream, width
 
Constructor Summary
PNGReader()
           
 
Method Summary
 java.lang.String getMimeType()
          Return correspondig mime type.
protected  void setDefaultHeader()
           
protected  void setDimension()
           
 boolean verifySignature(java.lang.String uri, java.io.BufferedInputStream fis)
          Verify image type.
 
Methods inherited from class org.apache.fop.image.analyser.AbstractImageReader
getHeight, getInputStream, getWidth
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

PNG_SIG_LENGTH

protected static final int PNG_SIG_LENGTH
See Also:
Constant Field Values

header

protected byte[] header
Constructor Detail

PNGReader

public PNGReader()
Method Detail

verifySignature

public boolean verifySignature(java.lang.String uri,
                               java.io.BufferedInputStream fis)
                        throws java.io.IOException
Description copied from interface: ImageReader
Verify image type.

Specified by:
verifySignature in interface ImageReader
Specified by:
verifySignature in class AbstractImageReader
Throws:
java.io.IOException

getMimeType

public java.lang.String getMimeType()
Description copied from interface: ImageReader
Return correspondig mime type.

Specified by:
getMimeType in interface ImageReader
Specified by:
getMimeType in class AbstractImageReader

setDimension

protected void setDimension()

setDefaultHeader

protected void setDefaultHeader()
                         throws java.io.IOException
Throws:
java.io.IOException


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