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 java.lang.Object
implements GsubWorker

Devanagari-specific implementation of GSUB system

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor	Description
GsubWorkerForDevanagari(CmapLookup cmapLookup, GsubData gsubData)

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

LOG

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

RKRF_FEATURE

private static final java.lang.String RKRF_FEATURE

See Also:

Constant Field Values

VATU_FEATURE

private static final java.lang.String VATU_FEATURE

See Also:

Constant Field Values

FEATURES_IN_ORDER

private static final java.util.List<java.lang.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 java.util.List<java.lang.Integer> rephGlyphIds

beforeRephGlyphIds

private final java.util.List<java.lang.Integer> beforeRephGlyphIds

beforeHalfGlyphIds

private final java.util.List<java.lang.Integer> beforeHalfGlyphIds

Constructor Detail

GsubWorkerForDevanagari

GsubWorkerForDevanagari(CmapLookup cmapLookup,
                        GsubData gsubData)

Method Detail

applyTransforms

public java.util.List<java.lang.Integer> applyTransforms(java.util.List<java.lang.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 java.util.List<java.lang.Integer> applyRKRFFeature(ScriptFeature rkrfGlyphsForSubstitution,
                                                           java.util.List<java.lang.Integer> originalGlyphIds)

adjustRephPosition

private java.util.List<java.lang.Integer> adjustRephPosition(java.util.List<java.lang.Integer> originalGlyphIds)

repositionGlyphs

private java.util.List<java.lang.Integer> repositionGlyphs(java.util.List<java.lang.Integer> originalGlyphIds)

applyGsubFeature

private java.util.List<java.lang.Integer> applyGsubFeature(ScriptFeature scriptFeature,
                                                           java.util.List<java.lang.Integer> originalGlyphs)

getBeforeHalfGlyphIds

private java.util.List<java.lang.Integer> getBeforeHalfGlyphIds()

getRephGlyphIds

private java.util.List<java.lang.Integer> getRephGlyphIds()

getbeforeRephGlyphIds

private java.util.List<java.lang.Integer> getbeforeRephGlyphIds()

getGlyphId

private java.lang.Integer getGlyphId(char character)