Class PngEncoder

java.lang.Object

org.eclipse.swt.internal.image.PngEncoder

final class PngEncoder
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final int	BEST_COMPRESSION
(package private) static final int	BEST_SPEED
(package private) int	bitDepth
(package private) ByteArrayOutputStream	bytes
(package private) PngChunk	chunk
(package private) int	colorType
(package private) int	compressionMethod
(package private) ImageData	data
(package private) static final int	DEFAULT_COMPRESSION
(package private) int	filterMethod
(package private) int	height
(package private) int	interlaceMethod
(package private) ImageLoader	loader
(package private) static final int	NO_COMPRESSION
(package private) static final byte[]	SIGNATURE
(package private) static final byte[]	TAG_IDAT
(package private) static final byte[]	TAG_IEND
(package private) static final byte[]	TAG_IHDR
(package private) static final byte[]	TAG_PLTE
(package private) static final byte[]	TAG_TRNS
(package private) int	transparencyType
(package private) int	width

Constructor Summary

Constructors

Constructor	Description
PngEncoder(ImageLoader loader)

Method Summary

Modifier and Type	Method	Description
void	encode(LEDataOutputStream outputStream)
(package private) void	writeChunk(byte[] tag, byte[] buffer)
(package private) void	writeEnd()
(package private) void	writeHeader()
(package private) void	writeImageData()
(package private) void	writeInt(ByteArrayOutputStream baos, int theInt)
(package private) void	writePalette()
(package private) void	writeShort(ByteArrayOutputStream baos, int theShort)
(package private) void	writeSignature()
(package private) void	writeTransparency()

Methods inherited from class Object

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

Field Details

SIGNATURE

static final byte[] SIGNATURE

TAG_IHDR

static final byte[] TAG_IHDR

TAG_PLTE

static final byte[] TAG_PLTE

TAG_TRNS

static final byte[] TAG_TRNS

TAG_IDAT

static final byte[] TAG_IDAT

TAG_IEND

static final byte[] TAG_IEND

NO_COMPRESSION

static final int NO_COMPRESSION

See Also:

• Constant Field Values

BEST_SPEED

static final int BEST_SPEED

See Also:

• Constant Field Values

BEST_COMPRESSION

static final int BEST_COMPRESSION

See Also:

• Constant Field Values

DEFAULT_COMPRESSION

static final int DEFAULT_COMPRESSION

See Also:

• Constant Field Values

bytes

ByteArrayOutputStream bytes

chunk

PngChunk chunk

loader

ImageLoader loader

data

ImageData data

transparencyType

int transparencyType

width

int width

height

int height

bitDepth

int bitDepth

colorType

int colorType

compressionMethod

int compressionMethod

filterMethod

int filterMethod

interlaceMethod

int interlaceMethod

Constructor Details

PngEncoder

public PngEncoder(ImageLoader loader)

Method Details

writeShort

void writeShort(ByteArrayOutputStream baos,
 int theShort)

writeInt

void writeInt(ByteArrayOutputStream baos,
 int theInt)

writeChunk

void writeChunk(byte[] tag,
 byte[] buffer)

writeSignature

void writeSignature()

writeHeader

void writeHeader()

writePalette

void writePalette()

writeTransparency

void writeTransparency()

writeImageData

void writeImageData()
             throws IOException

Throws:

IOException

writeEnd

void writeEnd()

encode

public void encode(LEDataOutputStream outputStream)