org.extex.font.format.xtf.tables
Class TtfTableHMTX

java.lang.Object
  org.extex.font.format.xtf.tables.AbstractXtfTable
      org.extex.font.format.xtf.tables.TtfTableHMTX

All Implemented Interfaces:

XtfGlyphName, XtfTable, XMLWriterConvertible

public class TtfTableHMTX
extends AbstractXtfTable
implements XtfTable, XMLWriterConvertible

The 'hmtx' table contains metric information for the horizontal layout each of the glyphs in the font.

Field	Type	Description
hMetrics	longHorMetric[numberOfHMetrics]	Paired advance width and left side bearing values for each glyph. The value numOfHMetrics comes from the ‘hhea’ table. If the font is monospaced, only one entry need be in the array, but that entry is required. The last entry applies to all subsequent glyphs.
leftSideBearing	FWord[ ]	Here the advanceWidth is assumed to be the same as the advanceWidth for the last entry above. The number of entries in this array is derived from numGlyphs (from ‘maxp’ table) minus numberOfHMetrics. This generally is used with a run of monospaced glyphs (e.g., Kanji fonts or Courier fonts). Only one run is allowed and it must be at the end. This allows a monospaced font to vary the left side bearing values for each glyph.

Version:

$Revision: 7274 $

Author:

Michael Niedermair

Constructor Summary

TtfTableHMTX(XtfTableMap tablemap, XtfTableDirectory.Entry de, RandomAccessR rar)
Create a new object

Method Summary

int	getAdvanceWidth(int i) Returns the advanced width
int	getInitOrder() Returns a order number to sort the tables for the init process.
short	getLeftSideBearing(int i) Return the left side bearing
java.lang.String	getShortcut() Returns the table shortcut.
int	getType() Get the table type, as a table directory value.
void	init() Initialize the table.
void	writeXML(XMLStreamWriter writer) Write the data to a XMLStreamWriter.

Methods inherited from class org.extex.font.format.xtf.tables.AbstractXtfTable

getGlyphName, getTableMap, writeStartElement

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.extex.font.format.xtf.tables.XtfTable

getTableMap

Constructor Detail

TtfTableHMTX

public TtfTableHMTX(XtfTableMap tablemap,
                    XtfTableDirectory.Entry de,
                    RandomAccessR rar)
             throws java.io.IOException

Create a new object

Parameters:

tablemap - the tablemap

de - entray

rar - input

Throws:

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

Method Detail

getAdvanceWidth

public int getAdvanceWidth(int i)

Returns the advanced width

Parameters:

i - index

Returns:

Returns the advanced width

getInitOrder

public int getInitOrder()

Returns a order number to sort the tables for the init process.

Specified by:

getInitOrder in interface XtfTable

Overrides:

getInitOrder in class AbstractXtfTable

Returns:

Returns the order number.

See Also:

AbstractXtfTable.getInitOrder()

getLeftSideBearing

public short getLeftSideBearing(int i)

Return the left side bearing

Parameters:

i - index

Returns:

Return the left side bearing

getShortcut

public java.lang.String getShortcut()

Returns the table shortcut.

Specified by:

getShortcut in interface XtfTable

Returns:

Returns the table shortcut.

See Also:

XtfTable.getShortcut()

getType

public int getType()

Get the table type, as a table directory value.

Specified by:

getType in interface XtfTable

Returns:

Returns the table type

init

public void init()

Description copied from class: AbstractXtfTable

Initialize the table.

Specified by:

init in interface XtfTable

Overrides:

init in class AbstractXtfTable

See Also:

AbstractXtfTable.init()

writeXML

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

Write the data to a XMLStreamWriter.

Specified by:

writeXML in interface XMLWriterConvertible

Parameters:

writer - the XML-Writer

Throws:

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

See Also:

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