Apache PDFBox 3.0.4 · org.apache.fontbox.ttf.TTFDataStream

Modifier and Type	Field and Description
private static final TimeZone	TIMEZONE_UTC

Access	Constructor and Description
pack-priv	TTFDataStream()

Method Summary

Modifier and Type	Method and Description
public RandomAccessRead	Returns: A view or null (caller can use `read` instead). Please close() the result createSubView(long length) Creates a view from current position to `pos + length`.
public abstract long	Returns: The current position in the stream. getCurrentPosition() Get the current position in the stream.
public abstract InputStream	Returns: The data that was read from. getOriginalData() This will get the original data file that was used for this stream.
public abstract long	Returns: The size of the original data. getOriginalDataSize() This will get the original data size that was used for this stream.
public abstract int	Returns: An unsigned byte. read() Read an unsigned byte.
public byte[]	Returns: The byte buffer. read(int The number of bytes to read. numberOfBytes) Read a specific number of bytes from the stream.
public abstract int	Returns: The number of bytes read, or -1 at the end of the stream read(byte[] The buffer to write to. b, int The offset into the buffer. off, int The length into the buffer. len)
public float	Returns: A 32 bit value. read32Fixed() Read a 16.16 fixed value, where the first 16 bits are the decimal and the last 16 bits are the fraction.
public Calendar	Returns: A signed short. readInternationalDate() Read an eight byte international date.
public abstract long	Returns: An unsigned byte. readLong() Read an unsigned byte.
public int	Returns: A signed byte. readSignedByte() Read a signed byte.
public short	Returns: A signed short. readSignedShort() Read a signed short.
public String	Returns: A string of the desired length. readString(int The length of the string to read. length) Read a fixed length ascii string.
public String	Returns: A string of the desired length. readString(int The length of the string to read in bytes. length, Charset The expected character set of the string. charset) Read a fixed length string.
public String	readTag() Reads a tag, an array of four uint8s used to identify a script, language system, feature, or baseline.
public int	Returns: An unsigned byte. readUnsignedByte() Read an unsigned byte.
public int[]	Returns: An unsigned byte array. readUnsignedByteArray(int the length of the array to be read length) Read an unsigned byte array.
public long	Returns: An unsigned integer. readUnsignedInt() Read an unsigned integer.
public int	Returns: An unsigned short. readUnsignedShort() Read an unsigned short.
public int[]	Returns: An unsigned short array. readUnsignedShortArray(int The length of the array to read. length) Read an unsigned short array.
public abstract void	seek(long The position to seek to. pos) Seek into the datasource.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

TIMEZONE_UTC	back to summary
private static final TimeZone TIMEZONE_UTC

TTFDataStream	back to summary
pack-priv TTFDataStream()

Method Detail

createSubView back to summary

createSubView	back to summary
public RandomAccessRead createSubView(long length) 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. Returns:RandomAccessRead A view or null (caller can use `read` instead). Please close() the result

public RandomAccessRead createSubView(long length)

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.

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

getCurrentPosition	back to summary
public abstract long getCurrentPosition() throws IOException Get the current position in the stream. Returns:long The current position in the stream. Exceptions IOException: If an error occurs while reading the stream.

getCurrentPosition

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public abstract long getCurrentPosition() throws IOException

Get the current position in the stream.

Returns:long

The current position in the stream.

Exceptions

IOException:: If an error occurs while reading the stream.

getOriginalData	back to summary
public abstract InputStream getOriginalData() throws IOException This will get the original data file that was used for this stream. Returns:InputStream The data that was read from. Exceptions IOException: If there is an issue reading the data.

getOriginalData

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public abstract InputStream getOriginalData() throws IOException

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

Returns:InputStream

The data that was read from.

Exceptions

IOException:: If there is an issue reading the data.

getOriginalDataSize	back to summary
public abstract long getOriginalDataSize() This will get the original data size that was used for this stream. Returns:long The size of the original data.

getOriginalDataSize

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public abstract long getOriginalDataSize()

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

Returns:long: The size of the original data.

read	back to summary
public abstract int read() throws IOException Read an unsigned byte. Returns:int An unsigned byte. Exceptions IOException: If there is an error reading the data.

read

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public abstract int read() throws IOException

Read an unsigned byte.

Returns:int

An unsigned byte.

Exceptions

IOException:: If there is an error reading the data.

read	back to summary
public byte[] read(int numberOfBytes) throws IOException Read a specific number of bytes from the stream. Parameters numberOfBytes:int The number of bytes to read. Returns:byte[] The byte buffer. Exceptions IOException: If there is an error while reading.

read

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public byte[] read(int numberOfBytes) throws IOException

Read a specific number of bytes from the stream.

Parameters

numberOfBytes:int: The number of bytes to read.

Returns:byte[]

The byte buffer.

Exceptions

IOException:: If there is an error while reading.

read	back to summary
public abstract int read(byte[] b, int off, int len) throws IOException Parameters b:byte[] The buffer to write to. off:int The offset into the buffer. len:int The length into the buffer. Returns:int The number of bytes read, or -1 at the end of the stream Exceptions IOException: If there is an error reading from the stream. See Also `java.io.InputStream#read(byte[], int, int)`

read32Fixed	back to summary
public float read32Fixed() throws IOException Read a 16.16 fixed value, where the first 16 bits are the decimal and the last 16 bits are the fraction. Returns:float A 32 bit value. Exceptions IOException: If there is an error reading the data.

read32Fixed

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public float read32Fixed() throws IOException

Read a 16.16 fixed value, where the first 16 bits are the decimal and the last 16 bits are the fraction.

Returns:float

A 32 bit value.

Exceptions

IOException:: If there is an error reading the data.

readInternationalDate	back to summary
public Calendar readInternationalDate() throws IOException Read an eight byte international date. Returns:Calendar A signed short. Exceptions IOException: If there is an error reading the data.

readInternationalDate

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public Calendar readInternationalDate() throws IOException

Read an eight byte international date.

Returns:Calendar

A signed short.

Exceptions

IOException:: If there is an error reading the data.

readLong	back to summary
public abstract long readLong() throws IOException Read an unsigned byte. Returns:long An unsigned byte. Exceptions IOException: If there is an error reading the data.

readLong

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public abstract long readLong() throws IOException

Read an unsigned byte.

Returns:long

An unsigned byte.

Exceptions

IOException:: If there is an error reading the data.

readSignedByte	back to summary
public int readSignedByte() throws IOException Read a signed byte. Returns:int A signed byte. Exceptions IOException: If there is an error reading the data.

readSignedByte

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public int readSignedByte() throws IOException

Read a signed byte.

Returns:int

A signed byte.

Exceptions

IOException:: If there is an error reading the data.

readSignedShort	back to summary
public short readSignedShort() throws IOException Read a signed short. Returns:short A signed short. Exceptions IOException: If there is an error reading the data.

readSignedShort

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public short readSignedShort() throws IOException

Read a signed short.

Returns:short

A signed short.

Exceptions

IOException:: If there is an error reading the data.

readString	back to summary
public String readString(int length) throws IOException Read a fixed length ascii string. Parameters length:int The length of the string to read. Returns:String A string of the desired length. Exceptions IOException: If there is an error reading the data.

readString

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public String readString(int length) throws IOException

Read a fixed length ascii string.

Parameters

length:int: The length of the string to read.

Returns:String

A string of the desired length.

Exceptions

IOException:: If there is an error reading the data.

readString	back to summary
public String readString(int length, Charset charset) throws IOException Read a fixed length string. Parameters length:int The length of the string to read in bytes. charset:Charset The expected character set of the string. Returns:String A string of the desired length. Exceptions IOException: If there is an error reading the data.

readString

back to summary

public String readString(int length, Charset charset) throws IOException

Read a fixed length string.

Parameters

length:int: The length of the string to read in bytes.
charset:Charset: The expected character set of the string.

Returns:String

A string of the desired length.

Exceptions

IOException:: If there is an error reading the data.

readTag	back to summary
public String readTag() throws IOException Reads a tag, an array of four uint8s used to identify a script, language system, feature, or baseline.

readUnsignedByte back to summary

readUnsignedByte	back to summary
public int readUnsignedByte() throws IOException Read an unsigned byte. Similar to `read()`, but throws an exception if EOF is unexpectedly reached. Returns:int An unsigned byte. Exceptions IOException: If there is an error reading the data.

public int readUnsignedByte() throws IOException

Read an unsigned byte. Similar to read(), but throws an exception if EOF is unexpectedly reached.

Returns:int

An unsigned byte.

Exceptions

IOException:: If there is an error reading the data.

readUnsignedByteArray	back to summary
public int[] readUnsignedByteArray(int length) throws IOException Read an unsigned byte array. Parameters length:int the length of the array to be read Returns:int[] An unsigned byte array. Exceptions IOException: If there is an error reading the data.

readUnsignedByteArray

back to summary

public int[] readUnsignedByteArray(int length) throws IOException

Read an unsigned byte array.

Parameters

length:int: the length of the array to be read

Returns:int[]

An unsigned byte array.

Exceptions

IOException:: If there is an error reading the data.

readUnsignedInt	back to summary
public long readUnsignedInt() throws IOException Read an unsigned integer. Returns:long An unsigned integer. Exceptions IOException: If there is an error reading the data.

readUnsignedInt

back to summary

public long readUnsignedInt() throws IOException

Read an unsigned integer.

Returns:long

An unsigned integer.

Exceptions

IOException:: If there is an error reading the data.

readUnsignedShort	back to summary
public int readUnsignedShort() throws IOException Read an unsigned short. Returns:int An unsigned short. Exceptions IOException: If there is an error reading the data.

readUnsignedShort

back to summary

public int readUnsignedShort() throws IOException

Read an unsigned short.

Returns:int

An unsigned short.

Exceptions

IOException:: If there is an error reading the data.

readUnsignedShortArray	back to summary
public int[] readUnsignedShortArray(int length) throws IOException Read an unsigned short array. Parameters length:int The length of the array to read. Returns:int[] An unsigned short array. Exceptions IOException: If there is an error reading the data.

readUnsignedShortArray

back to summary

public int[] readUnsignedShortArray(int length) throws IOException

Read an unsigned short array.

Parameters

length:int: The length of the array to read.

Returns:int[]

An unsigned short array.

Exceptions

IOException:: If there is an error reading the data.

seek	back to summary
public abstract void seek(long pos) throws IOException Seek into the datasource. Parameters pos:long The position to seek to. Exceptions IOException: If there is an error seeking to that position.

seek

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public abstract void seek(long pos) throws IOException

Seek into the datasource.

Parameters

pos:long: The position to seek to.

Exceptions

IOException:: If there is an error seeking to that position.

pack-priv abstract Class TTFDataStream

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