com.aspose.font

Class FontMetrics

java.lang.Object

com.aspose.font.FontMetrics

All Implemented Interfaces:

IFontMetrics

Direct Known Subclasses:

CffFontMetrics, TtfFontMetrics, Type1FontMetrics

public abstract class FontMetrics
extends Object
implements IFontMetrics

Represents font metrics.

Method Summary

Modifier and Type	Method and Description
double	getAscender() Gets Ascender value.
double	getAscender(double fontSize) Returns ascender for specific Font size.
double	getDescender() Gets Descender value.
double	getDescender(double fontSize) Returns descender for specific Font size.
FontBBox	getFontBBox() Gets FontBBox value.
TransformationMatrix	getFontMatrix() Gets FontMatrix value.
FontBBox	getGlyphBBox(GlyphId glyphId) Returns glyph Bbox.
double	getGlyphWidth(GlyphId glyphId) Returns glyph width.
double	getKerningValue(GlyphId prevGlyphId, GlyphId nextGlyphId) Returns kerning value for the glyph pair.
double	getLineGap() Gets LineGap value.
double	getTypoAscender() Gets TypoAscender value.
double	getTypoAscender(double fontSize) Returns typographic ascender for specific Font size.
double	getTypoDescender() Gets TypoDescender value.
double	getTypoDescender(double fontSize) Returns typographic descender for specific font size param fontSize Font size.
double	getTypoLineGap() Gets TypoLineGap value.
double	getTypoLineGap(double fontSize) Returns line gap for specific Font size.
long	getUnitsPerEM() Gets UnitsPerEM value.
boolean	isFixedPitch() Gets IsFixedPitch value.
abstract double	measureString(String unicode, double fontSize) Measures string and returns string width.
void	setAscender(double value) Sets Ascender value.
void	setDescender(double value) Sets Descender value.
void	setTypoAscender(double value) Sets TypoAscender value.
void	setTypoDescender(double value) Sets TypoDescender value.
void	setUnitsPerEM(long value) Sets UnitsPerEM value.

Methods inherited from class java.lang.Object

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

Method Detail

getAscender

public double getAscender()

Gets Ascender value.

Specified by:

getAscender in interface IFontMetrics

Returns:

Ascender value.

setAscender

public void setAscender(double value)

Sets Ascender value.

Specified by:

setAscender in interface IFontMetrics

Parameters:

value - Ascender value.

getDescender

public double getDescender()

Gets Descender value.

Specified by:

getDescender in interface IFontMetrics

Returns:

Descender value.

setDescender

public void setDescender(double value)

Sets Descender value.

Specified by:

setDescender in interface IFontMetrics

Parameters:

value - Descender value.

getTypoDescender

public double getTypoDescender()

Gets TypoDescender value.

Specified by:

getTypoDescender in interface IFontMetrics

Returns:

TypoDescender value.

setTypoDescender

public void setTypoDescender(double value)

Sets TypoDescender value.

Specified by:

setTypoDescender in interface IFontMetrics

Parameters:

value - TypoDescender value.

getTypoAscender

public double getTypoAscender()

Gets TypoAscender value.

Specified by:

getTypoAscender in interface IFontMetrics

Returns:

TypoAscender value.

setTypoAscender

public void setTypoAscender(double value)

Sets TypoAscender value.

Specified by:

setTypoAscender in interface IFontMetrics

Parameters:

value - TypoAscender value.

getLineGap

public double getLineGap()

Gets LineGap value.

Specified by:

getLineGap in interface IFontMetrics

Returns:

LineGap value.

getTypoLineGap

public double getTypoLineGap()

Gets TypoLineGap value.

Specified by:

getTypoLineGap in interface IFontMetrics

Returns:

TypoLineGap value.

isFixedPitch

public boolean isFixedPitch()

Gets IsFixedPitch value.

Specified by:

isFixedPitch in interface IFontMetrics

Returns:

IsFixedPitch value.

getFontBBox

public FontBBox getFontBBox()

Gets FontBBox value.

Specified by:

getFontBBox in interface IFontMetrics

Returns:

FontBBox value.

getFontMatrix

public TransformationMatrix getFontMatrix()

Gets FontMatrix value.

Specified by:

getFontMatrix in interface IFontMetrics

Returns:

FontMatrix value.

getUnitsPerEM

public long getUnitsPerEM()

Gets UnitsPerEM value.

Specified by:

getUnitsPerEM in interface IFontMetrics

Returns:

UnitsPerEM value.

setUnitsPerEM

public void setUnitsPerEM(long value)

Sets UnitsPerEM value.

Specified by:

setUnitsPerEM in interface IFontMetrics

Parameters:

value - UnitsPerEM value.

getAscender

public double getAscender(double fontSize)

Returns ascender for specific Font size.

Specified by:

getAscender in interface IFontMetrics

Parameters:

fontSize - Font size.

Returns:

Ascender value.

getDescender

public double getDescender(double fontSize)

Returns descender for specific Font size.

Specified by:

getDescender in interface IFontMetrics

Parameters:

fontSize - Font size.

Returns:

Descender value.

getTypoDescender

public double getTypoDescender(double fontSize)

Returns typographic descender for specific font size

param fontSize Font size.

Specified by:

getTypoDescender in interface IFontMetrics

Parameters:

fontSize - Font size.

Returns:

Typographic descender value.

getTypoAscender

public double getTypoAscender(double fontSize)

Returns typographic ascender for specific Font size.

Specified by:

getTypoAscender in interface IFontMetrics

Parameters:

fontSize - Font size.

Returns:

Typographic ascender value.

getTypoLineGap

public double getTypoLineGap(double fontSize)

Returns line gap for specific Font size.

Specified by:

getTypoLineGap in interface IFontMetrics

Parameters:

fontSize - Font size.

Returns:

Line gap value.

getGlyphWidth

public double getGlyphWidth(GlyphId glyphId)

Returns glyph width. May be overridden by specific font encoding inheritors.

Specified by:

getGlyphWidth in interface IFontMetrics

Parameters:

glyphId - Glyph identifier.

Returns:

Glyph width.

getGlyphBBox

public FontBBox getGlyphBBox(GlyphId glyphId)

Returns glyph Bbox. Returns FontBBox if BBox was not defined for the glyph. May be overridden by specific font encoding inheritors.

Specified by:

getGlyphBBox in interface IFontMetrics

Parameters:

glyphId - Glyph identifier.

Returns:

Glyph BBox.

getKerningValue

public double getKerningValue(GlyphId prevGlyphId,
                              GlyphId nextGlyphId)

Returns kerning value for the glyph pair.

Specified by:

getKerningValue in interface IFontMetrics

Parameters:

prevGlyphId - First glyph in pair.

nextGlyphId - Font size.

Returns:

Kerning value.

measureString

public abstract double measureString(String unicode,
                                     double fontSize)

Measures string and returns string width.

Specified by:

measureString in interface IFontMetrics

Parameters:

unicode - Unicode string.

fontSize - Font size.

Returns:

String width.