Package org.apache.fontbox.ttf.gsub

Class GsubWorkerForBengali

java.lang.Object

org.apache.fontbox.ttf.gsub.GsubWorkerForBengali

All Implemented Interfaces:

GsubWorker

public class GsubWorkerForBengali
extends Object
implements GsubWorker

Bengali-specific implementation of GSUB system

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	GsubWorkerForBengali.BeforeAndAfterSpanComponent	Models characters like O-kar (ো) and OU-kar (ৌ).

Field Summary

Fields

Modifier and Type	Field	Description
private static final GsubWorkerForBengali.BeforeAndAfterSpanComponent[]	BEFORE_AND_AFTER_SPAN_CHARS
private static final char[]	BEFORE_HALF_CHARS
private final Map<Integer,GsubWorkerForBengali.BeforeAndAfterSpanComponent>	beforeAndAfterSpanGlyphIds
private final List<Integer>	beforeHalfGlyphIds
private final CmapLookup	cmapLookup
private static final List<String>	FEATURES_IN_ORDER	This sequence is very important.
private final GsubData	gsubData
private static final String	INIT_FEATURE
private static final org.apache.commons.logging.Log	LOG

Constructor Summary

Constructors

Constructor	Description
GsubWorkerForBengali(CmapLookup cmapLookup, GsubData gsubData)

Method Summary

Modifier and Type	Method	Description
private List<Integer>	applyGsubFeature(ScriptFeature scriptFeature, List<Integer> originalGlyphs)
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 Map<Integer,GsubWorkerForBengali.BeforeAndAfterSpanComponent>	getBeforeAndAfterSpanGlyphIds()
private List<Integer>	getBeforeHalfGlyphIds()
private Integer	getGlyphId(char character)
private List<Integer>	repositionBeforeAndAfterSpanGlyphIds(List<Integer> originalGlyphIds)
private List<Integer>	repositionBeforeHalfGlyphIds(List<Integer> originalGlyphIds)
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

INIT_FEATURE

private static final String INIT_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/bengali

BEFORE_HALF_CHARS

private static final char[] BEFORE_HALF_CHARS

BEFORE_AND_AFTER_SPAN_CHARS

private static final GsubWorkerForBengali.BeforeAndAfterSpanComponent[] BEFORE_AND_AFTER_SPAN_CHARS

cmapLookup

private final CmapLookup cmapLookup

gsubData

private final GsubData gsubData

beforeHalfGlyphIds

private final List<Integer> beforeHalfGlyphIds

beforeAndAfterSpanGlyphIds

private final Map<Integer,GsubWorkerForBengali.BeforeAndAfterSpanComponent> beforeAndAfterSpanGlyphIds

Constructor Details

GsubWorkerForBengali

GsubWorkerForBengali(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

repositionGlyphs

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

repositionBeforeHalfGlyphIds

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

repositionBeforeAndAfterSpanGlyphIds

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

applyGsubFeature

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

getBeforeHalfGlyphIds

private List<Integer> getBeforeHalfGlyphIds()

getGlyphId

private Integer getGlyphId(char character)

getBeforeAndAfterSpanGlyphIds

private Map<Integer,GsubWorkerForBengali.BeforeAndAfterSpanComponent> getBeforeAndAfterSpanGlyphIds()