com.vwp.awt.image
Class ImagePNGData

java.lang.Object
  com.vwp.awt.image.ImagePNGData

public class ImagePNGData
extends Object

This class is a saver for Images and BufferedImages. It stores these data in the well-known and patent-free PNG fileformat

Field Summary

static boolean	ENCODE_ALPHA constant specifying that alpha channel should be encoded.
static int	FILTER_MAX
static int	FILTER_NONE
static int	FILTER_SUB
static int	FILTER_UP
static boolean	NO_ALPHA constant specifying that alpha channel should not be encoded.

Constructor Summary

ImagePNGData()
Default constructor

ImagePNGData(BufferedImage image)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(BufferedImage image, boolean encodeAlpha)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(BufferedImage image, boolean encodeAlpha, int filterType)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(BufferedImage image, boolean encodeAlpha, int filterType, int compressionStrength)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(Image image)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(Image image, boolean encodeAlpha)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(Image image, boolean encodeAlpha, int filterType)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

ImagePNGData(Image image, boolean encodeAlpha, int filterType, int compressionStrength)
Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Method Summary

int	getCompressionLevel() Deprecated. Please use class ImageWriter with MIME-type image/png instead!
boolean	getEncodeAlpha() Deprecated. Please use class ImageWriter with MIME-type image/png instead!
int	getFilter() Deprecated. Please use class ImageWriter with MIME-type image/png instead!
byte[]	pngEncode() Deprecated. Please use class ImageWriter with MIME-type image/png instead!
byte[]	pngEncode(boolean encodeAlpha) Deprecated. Please use class ImageWriter with MIME-type image/png instead!
void	setCompressionLevel(int level) Deprecated. Please use class ImageWriter with MIME-type image/png instead!
void	setFilter(int filterType) Deprecated. Please use class ImageWriter with MIME-type image/png instead!
void	setImage(BufferedImage image) Deprecated. Please use class ImageWriter with MIME-type image/png instead!
void	setImage(Image image) Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Methods inherited from class java.lang.Object

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

Field Detail

ENCODE_ALPHA

public static final boolean ENCODE_ALPHA

constant specifying that alpha channel should be encoded.

See Also:

Constant Field Values

NO_ALPHA

public static final boolean NO_ALPHA

constant specifying that alpha channel should not be encoded.

See Also:

Constant Field Values

FILTER_NONE

public static final int FILTER_NONE

See Also:

Constant Field Values

FILTER_SUB

public static final int FILTER_SUB

See Also:

Constant Field Values

FILTER_UP

public static final int FILTER_UP

See Also:

Constant Field Values

FILTER_MAX

public static final int FILTER_MAX

See Also:

Constant Field Values

Constructor Detail

ImagePNGData

public ImagePNGData()

Default constructor

ImagePNGData

public ImagePNGData(Image image)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, with no alpha channel encoding.

Parameters:

image - - A Java Image object which uses the DirectColorModel

ImagePNGData

public ImagePNGData(BufferedImage image)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, with no alpha channel encoding.

Parameters:

image - - A Java BufferedImage object which uses the DirectColorModel

ImagePNGData

public ImagePNGData(Image image,
                    boolean encodeAlpha)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, and whether to encode alpha.

Parameters:

image - - A Java Image object which uses the DirectColorModel

encodeAlpha - - encode the alpha channel, false=no; true=yes

ImagePNGData

public ImagePNGData(BufferedImage image,
                    boolean encodeAlpha)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, and whether to encode alpha.

Parameters:

image - - A Java BufferedImage object which uses the DirectColorModel

encodeAlpha - - encode the alpha channel, false=no; true=yes

ImagePNGData

public ImagePNGData(Image image,
                    boolean encodeAlpha,
                    int filterType)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, whether to encode alpha, and filter to use.

Parameters:

image - - A Java Image object which uses the DirectColorModel

encodeAlpha - - encode the alpha channel, false=no; true=yes

filterType - - see filter constants above

ImagePNGData

public ImagePNGData(BufferedImage image,
                    boolean encodeAlpha,
                    int filterType)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, whether to encode alpha, and filter to use.

Parameters:

image - - A Java BufferedImage object which uses the DirectColorModel

encodeAlpha - - encode the alpha channel, false=no; true=yes

filterType - - see filter constants above

ImagePNGData

public ImagePNGData(BufferedImage image,
                    boolean encodeAlpha,
                    int filterType,
                    int compressionStrength)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, whether to encode alpha, and filter to use.

Parameters:

image - - A Java Image object which uses the DirectColorModel

encodeAlpha - - encode the alpha channel, false=no; true=yes

filterType - - see filter constants above

compressionStrength - - level of compression in range 0..9

ImagePNGData

public ImagePNGData(Image image,
                    boolean encodeAlpha,
                    int filterType,
                    int compressionStrength)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Class constructor specifying Image to encode, whether to encode alpha, and filter to use.

Parameters:

image - - A Java BufferedImage object which uses the DirectColorModel

encodeAlpha - - encode the alpha channel, false=no; true=yes

filterType - - see filter constants above

compressionStrength - - level of compression in range 0..9

Method Detail

setImage

public void setImage(Image image)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Sets the image to be encoded

Parameters:

image - - A Java Image object which uses the DirectColorModel

setImage

public void setImage(BufferedImage image)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Sets the image to be encoded

Parameters:

image - - A Java BufferedImage object which uses the DirectColorModel

pngEncode

public byte[] pngEncode()

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Creates an array of bytes that is the PNG equivalent of the current image. Alpha encoding is not performed.

Returns:

an array of bytes, or null if there was a problem

pngEncode

public byte[] pngEncode(boolean encodeAlpha)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Creates an array of bytes that is the PNG equivalent of the current image. Alpha encoding is determined by its setting in the constructor.

Parameters:

encodeAlpha - - specifies if the alpha channel has to be encoded into the PNG data too

Returns:

an array of bytes, or null if there was a problem

getEncodeAlpha

public boolean getEncodeAlpha()

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Returns the alpha encoding status.

setFilter

public void setFilter(int filterType)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Sets the filter to use

Parameters:

filterType - - type of filter to use

getFilter

public int getFilter()

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Returns the actual filter

Returns:

type of filter which is used

setCompressionLevel

public void setCompressionLevel(int level)

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Set the compression level

Parameters:

level - - desired compression level

getCompressionLevel

public int getCompressionLevel()

Deprecated. Please use class ImageWriter with MIME-type image/png instead!

Returns the compression level

Returns:

actual compression level