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

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

All Implemented Interfaces:

XtfGlyphName, XtfTable, XMLWriterConvertible

public class TtfTableHEAD
extends AbstractXtfTable
implements XtfTable, XMLWriterConvertible

The 'head' table contains global information about the font. It records such facts as the font version number, the creation and modification dates, revision number and basic typographic data that applies to the font as a whole. This includes a specification of the font bounding box, the direction in which the font's glyphs are most likely to be written and other information about the placement of glyphs in the em square.

Type	Name	Description
Fixed	Table version number	0x00010000 for version 1.0.
Fixed	fontRevision	Set by font manufacturer.
ULONG	checkSumAdjustment	To compute: set it to 0, sum the entire font as ULONG, then store 0xB1B0AFBA - sum.
ULONG	magicNumber	Set to 0x5F0F3CF5.
USHORT	flags	Bit 0 - baseline for font at y=0; Bit 1 - left sidebearing at x=0; Bit 2 - instructions may depend on point size; Bit 3 - force ppem to integer values for all internal scaler math; may use fractional ppem sizes if this bit is clear; Bit 4 - instructions may alter advance width (the advance widths might not scale linearly); Note: All other bits must be zero.
USHORT	unitsPerEm	Valid range is from 16 to 16384
longDateTime	created	International date (8-byte field).
longDateTime	modified	International date (8-byte field).
FWord	xMin	For all glyph bounding boxes.
FWord	yMin	For all glyph bounding boxes.
FWord	xMax	For all glyph bounding boxes.
FWord	yMax	For all glyph bounding boxes.
USHORT	macStyle	Bit 0 bold (if set to 1); Bit 1 italic (if set to 1) Bits 2-15 reserved (set to 0).
USHORT	lowestRecPPEM	Smallest readable size in pixels.
SHORT	fontDirectionHint	0 Fully mixed directional glyphs; 1 Only strongly left to right; 2 Like 1 but also contains neutrals 1; -1 Only strongly right to left; -2 Like -1 but also contains neutrals.
SHORT	indexToLocFormat	0 for short offsets, 1 for long.
SHORT	glyphDataFormat	0 for current format.

Version:

$Revision: 6604 $

Author:

Michael Niedermair

Constructor Summary

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

Method Summary

int	getCheckSumAdjustment() Returns the checkSumAdjustment.
long	getCreated() Returns the created.
short	getFlags() Returns the flags.
short	getFontDirectionHint() Returns the fontDirectionHint.
Fixed32	getFontRevision() Returns the fontRevision.
short	getGlyphDataFormat() Returns the glyphDataFormat.
short	getIndexToLocFormat() Returns the indexToLocFormat.
short	getLowestRecPPEM() Returns the lowestRecPPEM.
short	getMacStyle() Returns the macStyle.
int	getMagicNumber() Returns the magicNumber.
long	getModified() Returns the modified.
java.lang.String	getShortcut() Returns the table shortcut.
int	getType() Get the table type, as a table directory value.
short	getUnitsPerEm() Returns the unitsPerEm.
int	getVersion() Returns the version.
short	getXMax() Returns the xMax.
short	getXMin() Returns the xMin.
short	getYMax() Returns the yMax.
short	getYMin() Returns the yMin.
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

TtfTableHEAD

public TtfTableHEAD(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

getCheckSumAdjustment

public int getCheckSumAdjustment()

Returns the checkSumAdjustment.

Returns:

Returns the checkSumAdjustment.

getCreated

public long getCreated()

Returns the created.

Returns:

Returns the created.

getFlags

public short getFlags()

Returns the flags.

Returns:

Returns the flags.

getFontDirectionHint

public short getFontDirectionHint()

Returns the fontDirectionHint.

Returns:

Returns the fontDirectionHint.

getFontRevision

public Fixed32 getFontRevision()

Returns the fontRevision.

Returns:

Returns the fontRevision.

getGlyphDataFormat

public short getGlyphDataFormat()

Returns the glyphDataFormat.

Returns:

Returns the glyphDataFormat.

getIndexToLocFormat

public short getIndexToLocFormat()

Returns the indexToLocFormat.

Returns:

Returns the indexToLocFormat.

getLowestRecPPEM

public short getLowestRecPPEM()

Returns the lowestRecPPEM.

Returns:

Returns the lowestRecPPEM.

getMacStyle

public short getMacStyle()

Returns the macStyle.

Returns:

Returns the macStyle.

getMagicNumber

public int getMagicNumber()

Returns the magicNumber.

Returns:

Returns the magicNumber.

getModified

public long getModified()

Returns the modified.

Returns:

Returns the modified.

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

getUnitsPerEm

public short getUnitsPerEm()

Returns the unitsPerEm.

Returns:

Returns the unitsPerEm.

getVersion

public int getVersion()

Returns the version.

Returns:

Returns the version.

getXMax

public short getXMax()

Returns the xMax.

Returns:

Returns the xMax.

getXMin

public short getXMin()

Returns the xMin.

Returns:

Returns the xMin.

getYMax

public short getYMax()

Returns the yMax.

Returns:

Returns the yMax.

getYMin

public short getYMin()

Returns the yMin.

Returns:

Returns the yMin.

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)