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

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

All Implemented Interfaces:

XtfGlyphName, XtfTable, XMLWriterConvertible

public class TtfTableHHEA
extends AbstractXtfTable
implements XtfTable, XMLWriterConvertible

The 'hhea' table contains information needed to layout fonts whose characters are written horizontally, that is, either left to right or right to left. This table contains information that is general to the font as a whole.

FWord<

Type	Name	Description
Fixed	Table version number	0x00010000 for version 1.0.
FWord	Ascender	Typographic ascent.
FWord	Descender	Typographic descent.
LineGap	Typographic line gap. Negative LineGap values are treated as zero in Windows 3.1, System 6, and System 7.
uFWord	advanceWidthMax	Maximum advance width value in ‘hmtx’ table.
FWord	minLeftSideBearing	Minimum left sidebearing value in ‘hmtx’ table.
FWord	minRightSideBearing	Minimum right sidebearing value; calculated as Min(aw - lsb - (xMax - xMin)).
FWord	xMaxExtent	Max(lsb + (xMax - xMin)).
SHORT	caretSlopeRise	Used to calculate the slope of the cursor (rise/run); 1 for vertical.
SHORT	caretSlopeRun	0 for vertical.
SHORT	(reserved)	set to 0
SHORT	(reserved)	set to 0
SHORT	(reserved)	set to 0
SHORT	(reserved)	set to 0
SHORT	(reserved)	set to 0
SHORT	metricDataFormat	0 for current format.
USHORT	numberOfHMetrics	Number of hMetric entries in ‘hmtx’ table; may be smaller than the total number of glyphs in the font.

Version:

$Revision: 6604 $

Author:

Michael Niedermair

Constructor Summary

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

Method Summary

short	getAdvanceWidthMax() Returns the advanceWidthMax.
short	getAscender() Returns the ascender.
short	getCaretSlopeRise() Returns the caretSlopeRise.
short	getCaretSlopeRun() Returns the caretSlopeRun.
short	getDescender() Returns the descender.
short	getLineGap() Returns the lineGap.
short	getMetricDataFormat() Returns the metricDataFormat.
short	getMinLeftSideBearing() Returns the minLeftSideBearing.
short	getMinRightSideBearing() Returns the minRightSideBearing.
short	getNumberOfHMetrics() Returns the numberOfHMetrics.
java.lang.String	getShortcut() Returns the table shortcut.
int	getType() Get the table type, as a table directory value.
int	getVersion() Returns the version.
short	getXMaxExtent() Returns the xMaxExtent.
void	writeXML(XMLStreamWriter writer) Write the data to a XMLStreamWriter.

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

getGlyphName, getInitOrder, getTableMap, init, 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

getInitOrder, getTableMap, init

Constructor Detail

TtfTableHHEA

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

Create a new object

Parameters:

tablemap - the tablemap

de - entry

rar - input

Throws:

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

Method Detail

getAdvanceWidthMax

public short getAdvanceWidthMax()

Returns the advanceWidthMax.

Returns:

Returns the advanceWidthMax.

getAscender

public short getAscender()

Returns the ascender.

Returns:

Returns the ascender.

getCaretSlopeRise

public short getCaretSlopeRise()

Returns the caretSlopeRise.

Returns:

Returns the caretSlopeRise.

getCaretSlopeRun

public short getCaretSlopeRun()

Returns the caretSlopeRun.

Returns:

Returns the caretSlopeRun.

getDescender

public short getDescender()

Returns the descender.

Returns:

Returns the descender.

getLineGap

public short getLineGap()

Returns the lineGap.

Returns:

Returns the lineGap.

getMetricDataFormat

public short getMetricDataFormat()

Returns the metricDataFormat.

Returns:

Returns the metricDataFormat.

getMinLeftSideBearing

public short getMinLeftSideBearing()

Returns the minLeftSideBearing.

Returns:

Returns the minLeftSideBearing.

getMinRightSideBearing

public short getMinRightSideBearing()

Returns the minRightSideBearing.

Returns:

Returns the minRightSideBearing.

getNumberOfHMetrics

public short getNumberOfHMetrics()

Returns the numberOfHMetrics.

Returns:

Returns the numberOfHMetrics.

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

getVersion

public int getVersion()

Returns the version.

Returns:

Returns the version.

getXMaxExtent

public short getXMaxExtent()

Returns the xMaxExtent.

Returns:

Returns the xMaxExtent.

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)