org.docx4j.fonts.fop.fonts.truetype

Class FontFileReader

java.lang.Object

org.docx4j.fonts.fop.fonts.truetype.FontFileReader

public class FontFileReader
extends Object

Reads a TrueType font file into a byte array and provides file like functions for array access.

Constructor Summary

Constructors

Constructor and Description
FontFileReader(InputStream in) Constructor
FontFileReader(String fileName) Constructor

Method Summary

Modifier and Type	Method and Description
byte[]	getBytes(int offset, int length) Return a copy of the internal array
int	getCurrentPos() Returns current file position.
int	getFileSize() Returns the size of the file.
byte	read() Read 1 byte.
byte	readTTFByte() Read 1 signed byte.
int	readTTFLong() Read 4 bytes.
short	readTTFShort() Read 2 bytes signed.
short	readTTFShort(long pos) Read 2 bytes signed at position pos without changing current position.
String	readTTFString() Read a NUL terminated ISO-8859-1 string.
String	readTTFString(int len) Read an ISO-8859-1 string of len bytes.
String	readTTFString(int len, int encodingID) Read an ISO-8859-1 string of len bytes.
int	readTTFUByte() Read 1 unsigned byte.
long	readTTFULong() Read 4 bytes.
int	readTTFUShort() Read 2 bytes unsigned.
int	readTTFUShort(long pos) Read 2 bytes unsigned at position pos without changing current position.
void	seekAdd(long add) Set current file position to offset
void	seekSet(long offset) Set current file position to offset
void	skip(long add) Skip a given number of bytes.
void	writeTTFUShort(int pos, int val) Write a USHort at a given position.

Methods inherited from class java.lang.Object

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

Constructor Detail

FontFileReader

public FontFileReader(String fileName)
               throws IOException

Constructor

Parameters:

fileName - filename to read

Throws:

IOException - In case of an I/O problem

FontFileReader

public FontFileReader(InputStream in)
               throws IOException

Constructor

Parameters:

in - InputStream to read from

Throws:

IOException - In case of an I/O problem

Method Detail

seekSet

public void seekSet(long offset)
             throws IOException

Set current file position to offset

Parameters:

offset - The new offset to set

Throws:

IOException - In case of an I/O problem

seekAdd

public void seekAdd(long add)
             throws IOException

Set current file position to offset

Parameters:

add - The number of bytes to advance

Throws:

IOException - In case of an I/O problem

skip

public void skip(long add)
          throws IOException

Skip a given number of bytes.

Parameters:

add - The number of bytes to advance

Throws:

IOException - In case of an I/O problem

getCurrentPos

public int getCurrentPos()

Returns current file position.

Returns:

int The current position.

getFileSize

public int getFileSize()

Returns the size of the file.

Returns:

int The filesize

read

public byte read()
          throws IOException

Read 1 byte.

Returns:

One byte

Throws:

IOException - If EOF is reached

readTTFByte

public final byte readTTFByte()
                       throws IOException

Read 1 signed byte.

Returns:

One byte

Throws:

IOException - If EOF is reached

readTTFUByte

public final int readTTFUByte()
                       throws IOException

Read 1 unsigned byte.

Returns:

One unsigned byte

Throws:

IOException - If EOF is reached

readTTFShort

public final short readTTFShort()
                         throws IOException

Read 2 bytes signed.

Returns:

One signed short

Throws:

IOException - If EOF is reached

readTTFUShort

public final int readTTFUShort()
                        throws IOException

Read 2 bytes unsigned.

Returns:

One unsigned short

Throws:

IOException - If EOF is reached

writeTTFUShort

public final void writeTTFUShort(int pos,
                                 int val)
                          throws IOException

Write a USHort at a given position.

Parameters:

pos - The absolute position to write to

val - The value to write

Throws:

IOException - If EOF is reached

readTTFShort

public final short readTTFShort(long pos)
                         throws IOException

Read 2 bytes signed at position pos without changing current position.

Parameters:

pos - The absolute position to read from

Returns:

One signed short

Throws:

IOException - If EOF is reached

readTTFUShort

public final int readTTFUShort(long pos)
                        throws IOException

Read 2 bytes unsigned at position pos without changing current position.

Parameters:

pos - The absolute position to read from

Returns:

One unsigned short

Throws:

IOException - If EOF is reached

readTTFLong

public final int readTTFLong()
                      throws IOException

Read 4 bytes.

Returns:

One signed integer

Throws:

IOException - If EOF is reached

readTTFULong

public final long readTTFULong()
                        throws IOException

Read 4 bytes.

Returns:

One unsigned integer

Throws:

IOException - If EOF is reached

readTTFString

public final String readTTFString()
                           throws IOException

Read a NUL terminated ISO-8859-1 string.

Returns:

A String

Throws:

IOException - If EOF is reached

readTTFString

public final String readTTFString(int len)
                           throws IOException

Read an ISO-8859-1 string of len bytes.

Parameters:

len - The length of the string to read

Returns:

A String

Throws:

IOException - If EOF is reached

readTTFString

public final String readTTFString(int len,
                                  int encodingID)
                           throws IOException

Read an ISO-8859-1 string of len bytes.

Parameters:

len - The length of the string to read

Returns:

A String

Throws:

IOException - If EOF is reached

getBytes

public byte[] getBytes(int offset,
                       int length)
                throws IOException

Return a copy of the internal array

Parameters:

offset - The absolute offset to start reading from

length - The number of bytes to read

Returns:

An array of bytes

Throws:

IOException - if out of bounds