org.extex.font.format.xtf.tables
Class TtfTableKERN.KernSubtableFormat0

java.lang.Object
  org.extex.font.format.xtf.tables.TtfTableKERN.KernSubtable
      org.extex.font.format.xtf.tables.TtfTableKERN.KernSubtableFormat0

All Implemented Interfaces:

XMLWriterConvertible

Enclosing class:

TtfTableKERN

public static class TtfTableKERN.KernSubtableFormat0
extends TtfTableKERN.KernSubtable

Format 0.

This is the only format that will be properly interpreted by Windows and OS/2.

Type	Field	Description
USHORT	nPairs	This gives the number of kerning pairs in the table.
USHORT	searchRange	The largest power of two less than or equal to the value of nPairs, multiplied by the size in bytes of an entry in the table.
USHORT	entrySelector	2 of the largest power of two less than or equal to the value of nPairs. This value indicates how many iterations of the search loop will have to be made. (For example, in a list of eight items, there would have to be three iterations of the loop).
USHORT	rangeShift	The value of nPairs minus the largest power of two less than or equal to nPairs, and then multiplied by the size in bytes of an entry in the table.

This is followed by the list of kerning pairs and values. Each has the following format:

Type

Field	Description
USHORT	left	The glyph index for the left-hand glyph in the kerning pair.
USHORT	right	The glyph index for the right-hand glyph in the kerning pair.
FWORD	value	The kerning value for the above pair, in FUnits. If this value is greater than zero, the characters will be moved apart. If this value is less than zero, the character will be moved closer together.

Method Summary

int	getEntrySelector() Returns the entrySelector.
TtfTableKERN.KerningPair	getKerning(int i) Returns the kerning
int	getKerningCount() Returns the number of kerning pairs.
int	getRangeShift() Returns the rangeShift.
int	getSearchRange() Returns the searchRange.
void	writeXML(XMLStreamWriter writer) Write the data to a XMLStreamWriter.

Methods inherited from class org.extex.font.format.xtf.tables.TtfTableKERN.KernSubtable

read

Methods inherited from class java.lang.Object

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

Method Detail

getEntrySelector

public int getEntrySelector()

Returns the entrySelector.

Returns:

Returns the entrySelector.

getKerning

public TtfTableKERN.KerningPair getKerning(int i)

Returns the kerning

Specified by:

getKerning in class TtfTableKERN.KernSubtable

Parameters:

i - index

Returns:

Returns the kerning

See Also:

TtfTableKERN.KernSubtable.getKerning(int)

getKerningCount

public int getKerningCount()

Returns the number of kerning pairs.

Specified by:

getKerningCount in class TtfTableKERN.KernSubtable

Returns:

Returns the number of kerning pairs.

See Also:

TtfTableKERN.KernSubtable.getKerningCount()

getRangeShift

public int getRangeShift()

Returns the rangeShift.

Returns:

Returns the rangeShift.

getSearchRange

public int getSearchRange()

Returns the searchRange.

Returns:

Returns the searchRange.

writeXML

public void writeXML(XMLStreamWriter writer)
              throws java.io.IOException

Write the data to a XMLStreamWriter.

Parameters:

writer - the XML-Writer

Throws:

java.io.IOException - if an IO-error occurs.

See Also:

XMLWriterConvertible.writeXML( org.extex.util.xml.XMLStreamWriter)