com.inductiveautomation.rm.pdf.reader

Class PDFCCITTFaxProducer

java.lang.Object

java.io.OutputStream

com.inductiveautomation.rm.pdf.reader.PDFCCITTFaxProducer

All Implemented Interfaces:

java.awt.image.ImageProducer, java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class PDFCCITTFaxProducer
extends java.io.OutputStream
implements java.awt.image.ImageProducer

This class is an image producer that uses the RBCodecCCITTFaxDecoder to produce the bits of a 1bpp monochrome image. This is used as an optimization for when decoding the entire image at once would be too expensive. Instead of holding on to all the bytes of a decompressed 8bpp BufferedImage, this class holds on to the compressed bit stream and produces the image as needed.

Constructor Summary

Constructors

Constructor and Description
PDFCCITTFaxProducer(RBCodecCCITTFaxDecode decoder) Create a new image producer for the codec.

Method Summary

Modifier and Type	Method and Description
void	addConsumer(java.awt.image.ImageConsumer ic) ImageProducer method - add a new consumer
void	flush()
RBCodecCCITTFaxDecode	getCodec() returns the decoder, should you need it.
boolean	isConsumer(java.awt.image.ImageConsumer ic) ImageProducer method - check to see if we are sending bits to ic
void	produce() The blood & guts
void	removeConsumer(java.awt.image.ImageConsumer ic) ImageProducer method
void	requestTopDownLeftRightResend(java.awt.image.ImageConsumer ic) ImageProducer method - send all the bits to the given consumer
void	startProduction(java.awt.image.ImageConsumer ic) ImageProducer method - kicks things off.
void	write(byte[] b)
void	write(int b)

Methods inherited from class java.io.OutputStream

close, write

Methods inherited from class java.lang.Object

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

Constructor Detail

PDFCCITTFaxProducer

public PDFCCITTFaxProducer(RBCodecCCITTFaxDecode decoder)

Create a new image producer for the codec.

Method Detail

addConsumer

public void addConsumer(java.awt.image.ImageConsumer ic)

ImageProducer method - add a new consumer

Specified by:

addConsumer in interface java.awt.image.ImageProducer

isConsumer

public boolean isConsumer(java.awt.image.ImageConsumer ic)

ImageProducer method - check to see if we are sending bits to ic

Specified by:

isConsumer in interface java.awt.image.ImageProducer

removeConsumer

public void removeConsumer(java.awt.image.ImageConsumer ic)

ImageProducer method

Specified by:

removeConsumer in interface java.awt.image.ImageProducer

startProduction

public void startProduction(java.awt.image.ImageConsumer ic)

ImageProducer method - kicks things off.

Specified by:

startProduction in interface java.awt.image.ImageProducer

requestTopDownLeftRightResend

public void requestTopDownLeftRightResend(java.awt.image.ImageConsumer ic)

ImageProducer method - send all the bits to the given consumer

Specified by:

requestTopDownLeftRightResend in interface java.awt.image.ImageProducer

produce

public void produce()

The blood & guts

getCodec

public RBCodecCCITTFaxDecode getCodec()

returns the decoder, should you need it.

write

public void write(byte[] b)
           throws java.io.IOException

Overrides:

write in class java.io.OutputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException