org.norther.tammi.sprig.jfree.encode
Class JFreeEncoder

java.lang.Object
  org.norther.tammi.sprig.jfree.encode.JFreeEncoder

All Implemented Interfaces:

Encoder

Direct Known Subclasses:

GIFEncoder, JpegEncoder, PNGEncoder

public abstract class JFreeEncoder
extends Object
implements Encoder

A JFreeReport compatible encoder.

Version:

$Id: JFreeEncoder.java,v 1.7 2009/09/28 15:08:51 cvsimp Exp $

Author:

Ilkka Priha

Constructor Summary

JFreeEncoder()
Constructs a new exporter.

Method Summary

byte[]	encode(ChartLayout layout) Encodes the specified layout as a byte buffer.
protected BufferedImage	getImage(ChartLayout layout) Gets the image.
protected abstract String	getImageFormat() Gets the image format of this encoder.
protected ChartRenderingInfo	getInfo() Gets the rendering info.
int	getQuality() Gets the image quality.
boolean	isEncodeAlpha() Checks the encode alpha visibity option.
void	setEncodeAlpha(boolean flag) Sets the encode alpha visibity option.
protected void	setInfo(ChartRenderingInfo info) Sets the rendering info.
void	setQuality(int q) Sets the image quality.
void	write(ChartLayout layout, File file) Writes the specified layout to a file.
void	write(ChartLayout layout, OutputStream output) Writes the specified layout to a stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

JFreeEncoder

public JFreeEncoder()

Constructs a new exporter.

Method Detail

isEncodeAlpha

public boolean isEncodeAlpha()

Description copied from interface: Encoder

Checks the encode alpha visibity option.

Specified by:

isEncodeAlpha in interface Encoder

Returns:

true to encode alpha visibity, false otherwise.

setEncodeAlpha

public void setEncodeAlpha(boolean flag)

Description copied from interface: Encoder

Sets the encode alpha visibity option.

Specified by:

setEncodeAlpha in interface Encoder

Parameters:

flag - true to encode alpha visibity, false otherwise.

getQuality

public int getQuality()

Description copied from interface: Encoder

Gets the image quality.

Specified by:

getQuality in interface Encoder

Returns:

the quality.

setQuality

public void setQuality(int q)

Description copied from interface: Encoder

Sets the image quality.

Specified by:

setQuality in interface Encoder

Parameters:

q - the quality (0 - 100 %).

encode

public byte[] encode(ChartLayout layout)
              throws LogException

Description copied from interface: Encoder

Encodes the specified layout as a byte buffer.

Specified by:

encode in interface Encoder

Parameters:

layout - the chart layout.

Returns:

the encoded chart.

Throws:

LogException - on errors.

write

public void write(ChartLayout layout,
                  File file)
           throws LogException

Description copied from interface: Encoder

Writes the specified layout to a file.

Specified by:

write in interface Encoder

Parameters:

layout - the chart layout.

file - the output file.

Throws:

LogException - on errors.

write

public void write(ChartLayout layout,
                  OutputStream output)
           throws LogException

Description copied from interface: Encoder

Writes the specified layout to a stream.

Specified by:

write in interface Encoder

Parameters:

layout - the chart layout.

output - the output stream.

Throws:

LogException - on errors.

getImage

protected BufferedImage getImage(ChartLayout layout)

Gets the image.

Parameters:

layout - the layout.

Returns:

the buffered image.

getInfo

protected ChartRenderingInfo getInfo()

Gets the rendering info.

Returns:

the info.

setInfo

protected void setInfo(ChartRenderingInfo info)

Sets the rendering info.

Parameters:

info - the info.

getImageFormat

protected abstract String getImageFormat()

Gets the image format of this encoder.

Returns:

the image format.