Class PosTableLookup8Format2

java.lang.Object

com.itextpdf.io.font.otf.ContextualTable<ContextualPositionRule>

com.itextpdf.io.font.otf.ChainingContextualTable<ContextualPositionRule>

com.itextpdf.io.font.otf.lookuptype8.PosTableLookup8Format2

public class PosTableLookup8Format2
extends ChainingContextualTable<ContextualPositionRule>

Chained Contexts Positioning Format 2: Class-based Glyph Contexts

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	PosTableLookup8Format2.PosRuleFormat2

Field Summary

Fields

Modifier and Type	Field	Description
private OtfClass	backtrackClassDefinition
private OtfClass	inputClassDefinition
private OtfClass	lookaheadClassDefinition
private List<List<ContextualPositionRule>>	posClassSets
private Set<Integer>	posCoverageGlyphIds

Fields inherited from class ContextualTable

lookupFlag, openReader

Constructor Summary

Constructors

Constructor	Description
PosTableLookup8Format2(OpenTypeFontTableReader openReader, int lookupFlag, Set<Integer> posCoverageGlyphIds, OtfClass backtrackClassDefinition, OtfClass inputClassDefinition, OtfClass lookaheadClassDefinition)

Method Summary

Modifier and Type	Method	Description
void	addPosClassSet(List<ContextualPositionRule> posClassSet)
protected List<ContextualPositionRule>	getSetOfRulesForStartGlyph(int startId)	Gets a set of rules, which start with given glyph id.

Methods inherited from class ChainingContextualTable

checkIfBacktrackContextMatch, checkIfLookaheadContextMatch, getMatchingContextRule

Methods inherited from class ContextualTable

checkIfContextMatch

Methods inherited from class Object

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

Field Details

posCoverageGlyphIds

private Set<Integer> posCoverageGlyphIds

posClassSets

private List<List<ContextualPositionRule>> posClassSets

backtrackClassDefinition

private OtfClass backtrackClassDefinition

inputClassDefinition

private OtfClass inputClassDefinition

lookaheadClassDefinition

private OtfClass lookaheadClassDefinition

Constructor Details

PosTableLookup8Format2

public PosTableLookup8Format2(OpenTypeFontTableReader openReader,
 int lookupFlag,
 Set<Integer> posCoverageGlyphIds,
 OtfClass backtrackClassDefinition,
 OtfClass inputClassDefinition,
 OtfClass lookaheadClassDefinition)

Method Details

addPosClassSet

public void addPosClassSet(List<ContextualPositionRule> posClassSet)

getSetOfRulesForStartGlyph

protected List<ContextualPositionRule> getSetOfRulesForStartGlyph(int startId)

Description copied from class: ContextualTable

Gets a set of rules, which start with given glyph id.

Specified by:

getSetOfRulesForStartGlyph in class ContextualTable<ContextualPositionRule>

Parameters:

startId - id of the first glyph in the sequence

Returns:

a list of ContextualSubstRule instances. The list will be empty if there are no rules that start with a given glyph id