Package org.apache.fontbox.ttf

Class TTCDataStream

java.lang.Object

org.apache.fontbox.ttf.TTFDataStream

org.apache.fontbox.ttf.TTCDataStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

class TTCDataStream
extends TTFDataStream

A wrapper for a TTF stream inside a TTC file, does not close the underlying shared stream.

Field Summary

Fields

Modifier and Type	Field	Description
private TTFDataStream	stream

Constructor Summary

Constructors

Constructor	Description
TTCDataStream(TTFDataStream stream)

Method Summary

Modifier and Type	Method	Description
void	close()
RandomAccessRead	createSubView(long length)	Creates a view from current position to pos + length.
long	getCurrentPosition()	Get the current position in the stream.
java.io.InputStream	getOriginalData()	This will get the original data file that was used for this stream.
long	getOriginalDataSize()	This will get the original data size that was used for this stream.
int	read()	Read an unsigned byte.
int	read(byte[] b, int off, int len)
long	readLong()	Read an unsigned byte.
void	seek(long pos)	Seek into the datasource.

Methods inherited from class org.apache.fontbox.ttf.TTFDataStream

read, read32Fixed, readInternationalDate, readSignedByte, readSignedShort, readString, readString, readTag, readUnsignedByte, readUnsignedByteArray, readUnsignedInt, readUnsignedShort, readUnsignedShortArray

Methods inherited from class java.lang.Object

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

Field Detail

stream

private final TTFDataStream stream

Constructor Detail

TTCDataStream

TTCDataStream(TTFDataStream stream)

Method Detail

read

public int read()
         throws java.io.IOException

Description copied from class: TTFDataStream

Read an unsigned byte.

Specified by:

read in class TTFDataStream

Returns:

An unsigned byte.

Throws:

java.io.IOException - If there is an error reading the data.

readLong

public long readLong()
              throws java.io.IOException

Description copied from class: TTFDataStream

Read an unsigned byte.

Specified by:

readLong in class TTFDataStream

Returns:

An unsigned byte.

Throws:

java.io.IOException - If there is an error reading the data.

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException

seek

public void seek(long pos)
          throws java.io.IOException

Description copied from class: TTFDataStream

Seek into the datasource.

Specified by:

seek in class TTFDataStream

Parameters:

pos - The position to seek to.

Throws:

java.io.IOException - If there is an error seeking to that position.

read

public int read(byte[] b,
                int off,
                int len)
         throws java.io.IOException

Specified by:

read in class TTFDataStream

Parameters:

b - The buffer to write to.

off - The offset into the buffer.

len - The length into the buffer.

Returns:

The number of bytes read, or -1 at the end of the stream

Throws:

java.io.IOException - If there is an error reading from the stream.

See Also:

InputStream.read(byte[], int, int )

getCurrentPosition

public long getCurrentPosition()
                        throws java.io.IOException

Description copied from class: TTFDataStream

Get the current position in the stream.

Specified by:

getCurrentPosition in class TTFDataStream

Returns:

The current position in the stream.

Throws:

java.io.IOException - If an error occurs while reading the stream.

getOriginalData

public java.io.InputStream getOriginalData()
                                    throws java.io.IOException

Description copied from class: TTFDataStream

This will get the original data file that was used for this stream.

Specified by:

getOriginalData in class TTFDataStream

Returns:

The data that was read from.

Throws:

java.io.IOException - If there is an issue reading the data.

getOriginalDataSize

public long getOriginalDataSize()

Description copied from class: TTFDataStream

This will get the original data size that was used for this stream.

Specified by:

getOriginalDataSize in class TTFDataStream

Returns:

The size of the original data.

createSubView

public RandomAccessRead createSubView(long length)

Description copied from class: TTFDataStream

Creates a view from current position to pos + length. It can be faster than read(length) if you only need a few bytes. SubView.close() should never close TTFDataStream.this, only itself.

Overrides:

createSubView in class TTFDataStream

Returns:

A view or null (caller can use TTFDataStream.read() instead). Please close() the result