Field Detail

• id

  public final String id

  Chunk-id: 4 letters

• crit

  public final boolean crit

  Autocomputed at creation time

• pub

  public final boolean pub

  Autocomputed at creation time

• safe

  public final boolean safe

  Autocomputed at creation time

• imgInfo

  protected final ImageInfo imgInfo

• raw

  protected ChunkRaw raw

• chunkGroup

  protected int chunkGroup

Constructor Detail

• PngChunk

  public PngChunk(String id,
          ImageInfo imgInfo)

Method Detail

• createEmptyChunk

  protected final ChunkRaw createEmptyChunk(int len,
                          boolean alloc)

• getChunkGroup

  public final int getChunkGroup()

  In which "chunkGroup" (see ChunksListfor definition) this chunks instance was read or written.

  -1 if not read or written (eg, queued)

• hasPriority

  public boolean hasPriority()

• setPriority

  public void setPriority(boolean priority)

• createRawChunk

  protected abstract ChunkRaw createRawChunk()

  Creates the physical chunk. This is used when writing (serialization). Each particular chunk class implements its own logic.

  Returns:

  A newly allocated and filled raw chunk

• parseFromRaw

  protected abstract void parseFromRaw(ChunkRaw c)

  Parses raw chunk and fill inside data. This is used when reading (deserialization). Each particular chunk class implements its own logic.

• cloneForWrite

  protected abstract PngChunk cloneForWrite(ImageInfo imgInfo)

  Makes a copy of the chunk.

  This is used when copying chunks from a reader to a writer

  This is usually a (shallow) copy, and after the cloning this.equals(other) should return true

• allowsMultiple

  protected abstract boolean allowsMultiple()

• getRaw

  public ChunkRaw getRaw()

• getLen

  public int getLen()

• getOffset

  public long getOffset()

• getOrderingConstraint

  public abstract PngChunk.ChunkOrderingConstraint getOrderingConstraint()

  see PngChunk.ChunkOrderingConstraint

• toString

  public String toString()

  Overrides:

  toString in class Object