fop 1.0

org.apache.fop.fonts.truetype
Class FontFileReader

java.lang.Object
  extended by org.apache.fop.fonts.truetype.FontFileReader

public class FontFileReader
extends java.lang.Object

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


Constructor Summary
FontFileReader(java.io.InputStream in)
          Constructor
FontFileReader(java.lang.String fileName)
          Constructor
 
Method Summary
 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.
 java.lang.String readTTFString()
          Read a NUL terminated ISO-8859-1 string.
 java.lang.String readTTFString(int len)
          Read an ISO-8859-1 string of len bytes.
 java.lang.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(java.lang.String fileName)
               throws java.io.IOException
Constructor

Parameters:
fileName - filename to read
Throws:
java.io.IOException - In case of an I/O problem

FontFileReader

public FontFileReader(java.io.InputStream in)
               throws java.io.IOException
Constructor

Parameters:
in - InputStream to read from
Throws:
java.io.IOException - In case of an I/O problem
Method Detail

seekSet

public void seekSet(long offset)
             throws java.io.IOException
Set current file position to offset

Parameters:
offset - The new offset to set
Throws:
java.io.IOException - In case of an I/O problem

seekAdd

public void seekAdd(long add)
             throws java.io.IOException
Set current file position to offset

Parameters:
add - The number of bytes to advance
Throws:
java.io.IOException - In case of an I/O problem

skip

public void skip(long add)
          throws java.io.IOException
Skip a given number of bytes.

Parameters:
add - The number of bytes to advance
Throws:
java.io.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 java.io.IOException
Read 1 byte.

Returns:
One byte
Throws:
java.io.IOException - If EOF is reached

readTTFByte

public final byte readTTFByte()
                       throws java.io.IOException
Read 1 signed byte.

Returns:
One byte
Throws:
java.io.IOException - If EOF is reached

readTTFUByte

public final int readTTFUByte()
                       throws java.io.IOException
Read 1 unsigned byte.

Returns:
One unsigned byte
Throws:
java.io.IOException - If EOF is reached

readTTFShort

public final short readTTFShort()
                         throws java.io.IOException
Read 2 bytes signed.

Returns:
One signed short
Throws:
java.io.IOException - If EOF is reached

readTTFUShort

public final int readTTFUShort()
                        throws java.io.IOException
Read 2 bytes unsigned.

Returns:
One unsigned short
Throws:
java.io.IOException - If EOF is reached

writeTTFUShort

public final void writeTTFUShort(int pos,
                                 int val)
                          throws java.io.IOException
Write a USHort at a given position.

Parameters:
pos - The absolute position to write to
val - The value to write
Throws:
java.io.IOException - If EOF is reached

readTTFShort

public final short readTTFShort(long pos)
                         throws java.io.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:
java.io.IOException - If EOF is reached

readTTFUShort

public final int readTTFUShort(long pos)
                        throws java.io.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:
java.io.IOException - If EOF is reached

readTTFLong

public final int readTTFLong()
                      throws java.io.IOException
Read 4 bytes.

Returns:
One signed integer
Throws:
java.io.IOException - If EOF is reached

readTTFULong

public final long readTTFULong()
                        throws java.io.IOException
Read 4 bytes.

Returns:
One unsigned integer
Throws:
java.io.IOException - If EOF is reached

readTTFString

public final java.lang.String readTTFString()
                                     throws java.io.IOException
Read a NUL terminated ISO-8859-1 string.

Returns:
A String
Throws:
java.io.IOException - If EOF is reached

readTTFString

public final java.lang.String readTTFString(int len)
                                     throws java.io.IOException
Read an ISO-8859-1 string of len bytes.

Parameters:
len - The length of the string to read
Returns:
A String
Throws:
java.io.IOException - If EOF is reached

readTTFString

public final java.lang.String readTTFString(int len,
                                            int encodingID)
                                     throws java.io.IOException
Read an ISO-8859-1 string of len bytes.

Parameters:
len - The length of the string to read
Returns:
A String
Throws:
java.io.IOException - If EOF is reached

getBytes

public byte[] getBytes(int offset,
                       int length)
                throws java.io.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:
java.io.IOException - if out of bounds

fop 1.0

Copyright 1999-2010 The Apache Software Foundation. All Rights Reserved.