Class PngPlteChunk

java.lang.Object

org.eclipse.swt.internal.image.PngChunk

org.eclipse.swt.internal.image.PngPlteChunk

class PngPlteChunk
extends PngChunk

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	paletteSize

Fields inherited from class PngChunk

CHUNK_IDAT, CHUNK_IEND, CHUNK_IHDR, CHUNK_PLTE, CHUNK_tRNS, CHUNK_UNKNOWN, CRC_TABLE, DATA_OFFSET, length, LENGTH_FIELD_LENGTH, LENGTH_OFFSET, MIN_LENGTH, reference, TYPE_FIELD_LENGTH, TYPE_IDAT, TYPE_IEND, TYPE_IHDR, TYPE_OFFSET, TYPE_PLTE, TYPE_tRNS

Constructor Summary

Constructors

Constructor	Description
PngPlteChunk(byte[] reference)
PngPlteChunk(PaletteData palette)

Method Summary

Modifier and Type	Method	Description
(package private) void	contributeToString(StringBuilder buffer)	Provided so that subclasses can override and add data to the toString() call.
(package private) int	getChunkType()
(package private) PaletteData	getPaletteData()	Get a PaletteData object representing the colors stored in this PLTE chunk.
(package private) int	getPaletteSize()	Get the number of colors in this palette.
(package private) void	setPaletteData(PaletteData palette)	Set the data of a PLTE chunk to the colors stored in the specified PaletteData object.
(package private) void	validate(PngFileReadState readState, PngIhdrChunk headerChunk)	Answer whether the chunk is a valid PLTE chunk.

Methods inherited from class PngChunk

checkCRC, computeCRC, getCRC, getData, getInt16, getInt32, getLength, getReference, getSize, getTypeBytes, isCritical, readNextFromStream, setCRC, setData, setInt16, setInt32, setLength, setReference, setType, toString, typeMatchesArray

Methods inherited from class Object

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

Field Details

paletteSize

int paletteSize

Constructor Details

PngPlteChunk

PngPlteChunk(PaletteData palette)

PngPlteChunk

PngPlteChunk(byte[] reference)

Method Details

getChunkType

int getChunkType()

Overrides:

getChunkType in class PngChunk

getPaletteSize

int getPaletteSize()

Get the number of colors in this palette.

getPaletteData

PaletteData getPaletteData()

Get a PaletteData object representing the colors stored in this PLTE chunk. The result should be cached as the PLTE chunk does not store the palette data created.

setPaletteData

void setPaletteData(PaletteData palette)

Set the data of a PLTE chunk to the colors stored in the specified PaletteData object.

validate

void validate(PngFileReadState readState,
 PngIhdrChunk headerChunk)

Answer whether the chunk is a valid PLTE chunk.

Overrides:

validate in class PngChunk

contributeToString

void contributeToString(StringBuilder buffer)

Description copied from class: PngChunk

Provided so that subclasses can override and add data to the toString() call.

Overrides:

contributeToString in class PngChunk