Package org.apache.fontbox.ttf.gsub

Class GsubWorkerForDevanagari

java.lang.Object

org.apache.fontbox.ttf.gsub.GsubWorkerForDevanagari

All Implemented Interfaces:

GsubWorker

public class GsubWorkerForDevanagari
extends Object
implements GsubWorker

Devanagari-specific implementation of GSUB system

Field Summary

Fields

Modifier and Type	Field	Description
private static final char	BEFORE_HALF_CHAR
private static final char[]	BEFORE_REPH_CHARS
private final List<Integer>	beforeHalfGlyphIds
private final List<Integer>	beforeRephGlyphIds
private final CmapLookup	cmapLookup
private static final List<String>	FEATURES_IN_ORDER	This sequence is very important.
private final GsubData	gsubData
private static final org.apache.commons.logging.Log	LOG
private static final char[]	REPH_CHARS
private final List<Integer>	rephGlyphIds
private static final String	RKRF_FEATURE
private static final String	VATU_FEATURE

Constructor Summary

Constructors

Constructor	Description
GsubWorkerForDevanagari(CmapLookup cmapLookup, GsubData gsubData)

Method Summary

Modifier and Type	Method	Description
private List<Integer>	adjustRephPosition(List<Integer> originalGlyphIds)
private List<Integer>	applyGsubFeature(ScriptFeature scriptFeature, List<Integer> originalGlyphs)
private List<Integer>	applyRKRFFeature(ScriptFeature rkrfGlyphsForSubstitution, List<Integer> originalGlyphIds)
List<Integer>	applyTransforms(List<Integer> originalGlyphIds)	Applies language-specific transforms including GSUB and any other pre or post-processing necessary for displaying Glyphs correctly.
private List<Integer>	getBeforeHalfGlyphIds()
private List<Integer>	getbeforeRephGlyphIds()
private Integer	getGlyphId(char character)
private List<Integer>	getRephGlyphIds()
private List<Integer>	repositionGlyphs(List<Integer> originalGlyphIds)

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.apache.commons.logging.Log LOG

RKRF_FEATURE

private static final String RKRF_FEATURE

See Also:

• Constant Field Values

VATU_FEATURE

private static final String VATU_FEATURE

See Also:

• Constant Field Values

FEATURES_IN_ORDER

private static final List<String> FEATURES_IN_ORDER

This sequence is very important. This has been taken from https://docs.microsoft.com/en-us/typography/script-development/devanagari

REPH_CHARS

private static final char[] REPH_CHARS

BEFORE_REPH_CHARS

private static final char[] BEFORE_REPH_CHARS

BEFORE_HALF_CHAR

private static final char BEFORE_HALF_CHAR

See Also:

• Constant Field Values

cmapLookup

private final CmapLookup cmapLookup

gsubData

private final GsubData gsubData

rephGlyphIds

private final List<Integer> rephGlyphIds

beforeRephGlyphIds

private final List<Integer> beforeRephGlyphIds

beforeHalfGlyphIds

private final List<Integer> beforeHalfGlyphIds

Constructor Details

GsubWorkerForDevanagari

GsubWorkerForDevanagari(CmapLookup cmapLookup,
 GsubData gsubData)

Method Details

applyTransforms

public List<Integer> applyTransforms(List<Integer> originalGlyphIds)

Description copied from interface: GsubWorker

Applies language-specific transforms including GSUB and any other pre or post-processing necessary for displaying Glyphs correctly.

Specified by:

applyTransforms in interface GsubWorker

Parameters:

originalGlyphIds - list of original glyph IDs

Returns:

list of transformed glyph IDs

applyRKRFFeature

private List<Integer> applyRKRFFeature(ScriptFeature rkrfGlyphsForSubstitution,
 List<Integer> originalGlyphIds)

adjustRephPosition

private List<Integer> adjustRephPosition(List<Integer> originalGlyphIds)

repositionGlyphs

private List<Integer> repositionGlyphs(List<Integer> originalGlyphIds)

applyGsubFeature

private List<Integer> applyGsubFeature(ScriptFeature scriptFeature,
 List<Integer> originalGlyphs)

getBeforeHalfGlyphIds

private List<Integer> getBeforeHalfGlyphIds()

getRephGlyphIds

private List<Integer> getRephGlyphIds()

getbeforeRephGlyphIds

private List<Integer> getbeforeRephGlyphIds()

getGlyphId

private Integer getGlyphId(char character)