weka.gui.visualize

Class JPEGWriter

java.lang.Object

weka.gui.visualize.JComponentWriter

weka.gui.visualize.JPEGWriter

public class JPEGWriter
extends JComponentWriter

This class takes any JComponent and outputs it to a JPEG-file. Scaling is by default disabled, since we always take a screenshot.

Version:

$Revision: 7059 $

Author:

FracPete (fracpete at waikato dot ac dot nz)

Field Summary

Fields

Modifier and Type	Field and Description
protected Color	m_Background the background color.
protected float	m_Quality the quality of the image.

Fields inherited from class weka.gui.visualize.JComponentWriter

DEBUG, m_CustomHeight, m_CustomWidth, m_ScalingEnabled, m_UseCustomDimensions, m_xScale, m_yScale

Constructor Summary

Constructors

Constructor and Description
JPEGWriter() initializes the object.
JPEGWriter(JComponent c) initializes the object with the given Component.
JPEGWriter(JComponent c, File f) initializes the object with the given Component and filename.

Method Summary

Modifier and Type	Method and Description
void	generateOutput() generates the actual output.
Color	getBackground() returns the current background color.
String	getDescription() returns the name of the writer, to display in the FileChooser.
String	getExtension() returns the extension (incl.
float	getQuality() returns the quality the JPEG will be stored in.
void	initialize() further initialization.
static void	main(String[] args) for testing only.
void	setBackground(Color c) sets the background color to use in creating the JPEG.
void	setQuality(float q) sets the quality the JPEG is saved in.

Methods inherited from class weka.gui.visualize.JComponentWriter

getComponent, getCustomHeight, getCustomWidth, getFile, getScalingEnabled, getUseCustomDimensions, getXScale, getYScale, setComponent, setCustomHeight, setCustomWidth, setFile, setScale, setScalingEnabled, setUseCustomDimensions, toOutput, toOutput, toOutput

Methods inherited from class java.lang.Object

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

Field Detail

m_Quality

protected float m_Quality

the quality of the image.

m_Background

protected Color m_Background

the background color.

Constructor Detail

JPEGWriter

public JPEGWriter()

initializes the object.

JPEGWriter

public JPEGWriter(JComponent c)

initializes the object with the given Component.

Parameters:

c - the component to print in the output format

JPEGWriter

public JPEGWriter(JComponent c,
                  File f)

initializes the object with the given Component and filename.

Parameters:

c - the component to print in the output format

f - the file to store the output in

Method Detail

initialize

public void initialize()

further initialization.

Overrides:

initialize in class JComponentWriter

getDescription

public String getDescription()

returns the name of the writer, to display in the FileChooser. must be overridden in the derived class.

Specified by:

getDescription in class JComponentWriter

Returns:

the name of the writer

getExtension

public String getExtension()

returns the extension (incl. ".") of the output format, to use in the FileChooser. must be overridden in the derived class.

Specified by:

getExtension in class JComponentWriter

Returns:

the file extension

getBackground

public Color getBackground()

returns the current background color.

Returns:

the current background color

setBackground

public void setBackground(Color c)

sets the background color to use in creating the JPEG.

Parameters:

c - the color to use for background

getQuality

public float getQuality()

returns the quality the JPEG will be stored in.

Returns:

the quality

setQuality

public void setQuality(float q)

sets the quality the JPEG is saved in.

Parameters:

q - the quality to use

generateOutput

public void generateOutput()
                    throws Exception

generates the actual output.

Specified by:

generateOutput in class JComponentWriter

Throws:

Exception - if something goes wrong

main

public static void main(String[] args)
                 throws Exception

for testing only.

Parameters:

args - the commandline arguments

Throws:

Exception - if something goes wrong