Class PngChunk
- java.lang.Object
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- org.apache.commons.imaging.common.BinaryFileParser
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- org.apache.commons.imaging.formats.png.chunks.PngChunk
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- Direct Known Subclasses:
PngChunkGama
,PngChunkIccp
,PngChunkIdat
,PngChunkIhdr
,PngChunkPhys
,PngChunkPlte
,PngChunkScal
,PngTextChunk
public class PngChunk extends BinaryFileParser
A PNG image is composed of several chunks. This is the base class for the chunks, used by the parser.
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Field Summary
Fields Modifier and Type Field Description boolean
ancillary
private byte[]
bytes
int
chunkType
int
crc
boolean
isPrivate
int
length
private boolean[]
propertyBits
boolean
reserved
boolean
safeToCopy
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Constructor Summary
Constructors Constructor Description PngChunk(int length, int chunkType, int crc, byte[] bytes)
Constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description byte[]
getBytes()
Return a copy of the chunk bytes.protected java.io.ByteArrayInputStream
getDataStream()
Create and return aByteArrayInputStream
for the chunk bytes.boolean[]
getPropertyBits()
Return a copy of the chunk property bits.-
Methods inherited from class org.apache.commons.imaging.common.BinaryFileParser
debugNumber, debugNumber, getByteOrder, setByteOrder
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Field Detail
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length
public final int length
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chunkType
public final int chunkType
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crc
public final int crc
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bytes
private final byte[] bytes
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propertyBits
private final boolean[] propertyBits
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ancillary
public final boolean ancillary
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isPrivate
public final boolean isPrivate
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reserved
public final boolean reserved
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safeToCopy
public final boolean safeToCopy
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Method Detail
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getBytes
public byte[] getBytes()
Return a copy of the chunk bytes.- Returns:
- the chunk bytes
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getPropertyBits
public boolean[] getPropertyBits()
Return a copy of the chunk property bits.- Returns:
- the chunk property bits
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getDataStream
protected java.io.ByteArrayInputStream getDataStream()
Create and return aByteArrayInputStream
for the chunk bytes.The caller is responsible for closing the resource.
- Returns:
- a ByteArrayInputStream for the chunk bytes
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