org.apache.fontbox.ttf

Class VerticalOriginTable

java.lang.Object

org.apache.fontbox.ttf.TTFTable

org.apache.fontbox.ttf.VerticalOriginTable

public class VerticalOriginTable
extends TTFTable

A vertical origin 'VORG' table in an OpenType font. The purpose of this table is to improve the efficiency of determining vertical origins in CFF fonts where absent this information the bounding box would have to be extracted from CFF charstring data. This table is strongly recommended by the OpenType CJK Font Guidelines for "CFF OpenType fonts that are used for vertical writing". This table is specified only in the OpenType specification (1.3 and later).

Author:

Glenn Adams

Field Summary

Fields

Modifier and Type	Field and Description
static String	TAG A tag that identifies this table type.

Fields inherited from class org.apache.fontbox.ttf.TTFTable

font, initialized

Method Summary

Modifier and Type	Method and Description
int	getOriginY(int gid) Returns the y-coordinate of the vertical origin for the given GID if known, or returns the default value if not specified in table data.
float	getVersion()
void	read(TrueTypeFont ttf, org.apache.fontbox.ttf.TTFDataStream data) This will read the required data from the stream.

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

getCheckSum, getInitialized, getLength, getOffset, getTag

Methods inherited from class java.lang.Object

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

Field Detail

TAG

public static final String TAG

A tag that identifies this table type.

See Also:

Constant Field Values

Method Detail

read

public void read(TrueTypeFont ttf,
                 org.apache.fontbox.ttf.TTFDataStream data)
          throws IOException

This will read the required data from the stream.

Parameters:

ttf - The font that is being read.

data - The stream to read the data from.

Throws:

IOException - If there is an error reading the data.

getVersion

public float getVersion()

Returns:

Returns the version.

getOriginY

public int getOriginY(int gid)

Returns the y-coordinate of the vertical origin for the given GID if known, or returns the default value if not specified in table data.

Parameters:

gid - GID

Returns:

Returns the y-coordinate of the vertical origin.