org.extex.font.format
Class NullExtexFont

java.lang.Object
  org.extex.font.format.NullExtexFont

All Implemented Interfaces:

BaseFont, ExtexFont

public class NullExtexFont
extends java.lang.Object
implements ExtexFont

This class implements a dummy font which does not contain any characters.

Version:

$Revision: 5592 $

Author:

Gerd Neugebauer, Michael Niedermair

Constructor Summary

NullExtexFont()

Method Summary

FontKey	getActualFontKey() Returns the actual FontKey for this font after a font substitution.
FixedDimen	getActualSize() Returns the actual size of the font.
FixedGlue	getDepth(UnicodeChar uc) Returns the depth of the char.
FixedDimen	getDesignSize() Returns the design size of the font.
FixedDimen	getEm() Returns the size of 'M'.
FixedDimen	getEx() Returns the size of 'x'.
FixedDimen	getFontDimen(java.lang.String name) Returns the size of the parameter with the name 'name'.
FontKey	getFontKey() Returns the FontKey for this font.
java.lang.String	getFontName() Returns the name of the font.
FixedGlue	getHeight(UnicodeChar uc) Returns the height of the char.
FixedDimen	getItalicCorrection(UnicodeChar uc) Returns the italic correction of the char.
FixedDimen	getKerning(UnicodeChar uc1, UnicodeChar uc2) Returns the kerning between two chars.
UnicodeChar	getLigature(UnicodeChar uc1, UnicodeChar uc2) Returns the ligature for two chars.
FixedCount	getScaleFactor() Returns the scale factor of the font.
FixedGlue	getSpace() Returns the size of the 'space'.
FixedGlue	getWidth(UnicodeChar uc) Returns the width of the char.
boolean	hasGlyph(UnicodeChar uc) Returns true, if the glyph exists.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullExtexFont

public NullExtexFont()

Method Detail

getActualFontKey

public FontKey getActualFontKey()

Returns the actual FontKey for this font after a font substitution.

Specified by:

getActualFontKey in interface BaseFont

Returns:

Returns the actual FontKey for this font.

See Also:

BaseFont.getActualFontKey()

getActualSize

public FixedDimen getActualSize()

Returns the actual size of the font.

Specified by:

getActualSize in interface ExtexFont

Returns:

Returns the actual size of the font.

See Also:

ExtexFont.getActualSize()

getDepth

public FixedGlue getDepth(UnicodeChar uc)

Returns the depth of the char. If the character is not defined or an invalid value is given, then the depth 0pt is returned.

Specified by:

getDepth in interface ExtexFont

Parameters:

uc - The Unicode char.

Returns:

Returns the depth of the char.

See Also:

ExtexFont.getDepth(org.extex.core.UnicodeChar)

getDesignSize

public FixedDimen getDesignSize()

Returns the design size of the font.

Specified by:

getDesignSize in interface ExtexFont

Returns:

Returns the design size of the font.

See Also:

ExtexFont.getDesignSize()

getEm

public FixedDimen getEm()

Returns the size of 'M'.

Specified by:

getEm in interface ExtexFont

Returns:

Returns the size of 'M'.

See Also:

ExtexFont.getEm()

getEx

public FixedDimen getEx()

Returns the size of 'x'.

Specified by:

getEx in interface ExtexFont

Returns:

Returns the size of 'x'.

See Also:

ExtexFont.getEx()

getFontDimen

public FixedDimen getFontDimen(java.lang.String name)

Returns the size of the parameter with the name 'name'.

The size are multiples of the design size!

Specified by:

getFontDimen in interface ExtexFont

Parameters:

name - The name of the parameter.

Returns:

Returns the size of the parameter with the name 'name'.

See Also:

ExtexFont.getFontDimen(java.lang.String)

getFontKey

public FontKey getFontKey()

Returns the FontKey for this font.

Specified by:

getFontKey in interface BaseFont

Returns:

Returns the FontKey for this font.

See Also:

BaseFont.getFontKey()

getFontName

public java.lang.String getFontName()

Returns the name of the font.

Specified by:

getFontName in interface ExtexFont

Returns:

Returns the name of the font.

See Also:

ExtexFont.getFontName()

getHeight

public FixedGlue getHeight(UnicodeChar uc)

Returns the height of the char. If the character is not defined or an invalid value is given, then the height 0pt is returned.

Specified by:

getHeight in interface ExtexFont

Parameters:

uc - The Unicode char.

Returns:

Returns the height of the char.

See Also:

ExtexFont.getHeight(org.extex.core.UnicodeChar)

getItalicCorrection

public FixedDimen getItalicCorrection(UnicodeChar uc)

Returns the italic correction of the char. If the character is not defined or an invalid value is given, then the italic correction 0pt is returned.

Specified by:

getItalicCorrection in interface ExtexFont

Parameters:

uc - The Unicode char.

Returns:

Returns the italic correction of the char.

See Also:

ExtexFont.getItalicCorrection(org.extex.core.UnicodeChar)

getKerning

public FixedDimen getKerning(UnicodeChar uc1,
                             UnicodeChar uc2)

Returns the kerning between two chars.

Specified by:

getKerning in interface ExtexFont

Parameters:

uc1 - The Unicode char (first one).

uc2 - The Unicode char (second one).

Returns:

Returns the kerning between two chars.

See Also:

ExtexFont.getKerning(org.extex.core.UnicodeChar, org.extex.core.UnicodeChar)

getLigature

public UnicodeChar getLigature(UnicodeChar uc1,
                               UnicodeChar uc2)

Returns the ligature for two chars. If no ligature exists then null is returned.

Specified by:

getLigature in interface ExtexFont

Parameters:

uc1 - The Unicode char (first one).

uc2 - The Unicode char (second one).

Returns:

Returns the ligature for two chars.

See Also:

ExtexFont.getLigature(org.extex.core.UnicodeChar, org.extex.core.UnicodeChar)

getScaleFactor

public FixedCount getScaleFactor()

Returns the scale factor of the font. The scale factor is a multiple of 1000.

Specified by:

getScaleFactor in interface ExtexFont

Returns:

Returns the scale factor of the font.

See Also:

ExtexFont.getScaleFactor()

getSpace

public FixedGlue getSpace()

Returns the size of the 'space'.

Specified by:

getSpace in interface ExtexFont

Returns:

Returns the size of the 'space'.

See Also:

ExtexFont.getSpace()

getWidth

public FixedGlue getWidth(UnicodeChar uc)

Returns the width of the char. If the character is not defined or an invalid value is given, then the width 0pt is returned.

Specified by:

getWidth in interface ExtexFont

Parameters:

uc - The Unicode char.

Returns:

Returns the width of the char.

See Also:

ExtexFont.getWidth(org.extex.core.UnicodeChar)

hasGlyph

public boolean hasGlyph(UnicodeChar uc)

Returns true, if the glyph exists.

Specified by:

hasGlyph in interface ExtexFont

Parameters:

uc - the unicode char

Returns:

true, if the glyph exists.

See Also:

ExtexFont.hasGlyph(org.extex.core.UnicodeChar)