iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2 Class Reference

Inheritance diagram for iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2:

Public Member Functions
	SubstRuleFormat2 (SubTableLookup6Format2 subTable, int[] backtrackClassIds, int[] inputClassIds, int[] lookAheadClassIds, SubstLookupRecord[] substLookupRecords)
override int	GetContextLength ()
	Gets the length of the context glyph sequence defined by this rule More...
override int	GetLookaheadContextLength ()
	Gets the length of the lookahead context glyph sequence defined by this rule More...
override int	GetBacktrackContextLength ()
	Gets the length of the backtrack context glyph sequence defined by this rule More...
override SubstLookupRecord[]	GetSubstLookupRecords ()
	Retrieves the substitution lookup records. More...
override bool	IsGlyphMatchesInput (int glyphId, int atIdx)
	Checks if glyph line element matches element from input sequence of the rule. More...
override bool	IsGlyphMatchesLookahead (int glyphId, int atIdx)
	Checks if glyph line element matches element from lookahead sequence of the rule. More...
override bool	IsGlyphMatchesBacktrack (int glyphId, int atIdx)
	Checks if glyph line element matches element from backtrack sequence of the rule. More...

Member Function Documentation

GetBacktrackContextLength()

override int iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.GetBacktrackContextLength ( )

inlinevirtual

Gets the length of the backtrack context glyph sequence defined by this rule

Returns

length of the backtrack context

Reimplemented from iText.IO.Font.Otf.ContextualRule.

GetContextLength()

override int iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.GetContextLength ( )

inlinevirtual

Gets the length of the context glyph sequence defined by this rule

Returns

length of the context

Implements iText.IO.Font.Otf.ContextualRule.

GetLookaheadContextLength()

override int iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.GetLookaheadContextLength ( )

inlinevirtual

Gets the length of the lookahead context glyph sequence defined by this rule

Returns

length of the lookahead context

Reimplemented from iText.IO.Font.Otf.ContextualRule.

GetSubstLookupRecords()

override SubstLookupRecord [] iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.GetSubstLookupRecords ( )

inlinevirtual

Retrieves the substitution lookup records.

Retrieves the substitution lookup records. Each record specifies a position in the context glyph sequence and a LookupListIndex to the substitution lookup that is applied at that position.

Returns

an array of SubstLookupRecord.

Implements iText.IO.Font.Otf.ContextualSubstRule.

IsGlyphMatchesBacktrack()

override bool iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.IsGlyphMatchesBacktrack ( int  glyphId, int  atIdx  )

inlinevirtual

Checks if glyph line element matches element from backtrack sequence of the rule.

Parameters

glyphId	glyph code id
atIdx	index in rule sequence. Shall be: 0 <= atIdx < GetBacktrackContextLength()

Returns

true if glyph matches element from backtrack sequence

Reimplemented from iText.IO.Font.Otf.ContextualRule.

IsGlyphMatchesInput()

override bool iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.IsGlyphMatchesInput ( int  glyphId, int  atIdx  )

inlinevirtual

Checks if glyph line element matches element from input sequence of the rule.

Checks if glyph line element matches element from input sequence of the rule.

NOTE: rules do not contain the first element of the input sequence, the first element is defined by rule position in substitution table. Therefore atIdx shall not be 0.

Parameters

glyphId	glyph code id
atIdx	index in the rule sequence. Shall be: 0 < atIdx < GetContextLength()

Returns

true if glyph matches element

Implements iText.IO.Font.Otf.ContextualRule.

IsGlyphMatchesLookahead()

override bool iText.IO.Font.Otf.Lookuptype6.SubTableLookup6Format2.SubstRuleFormat2.IsGlyphMatchesLookahead ( int  glyphId, int  atIdx  )

inlinevirtual

Checks if glyph line element matches element from lookahead sequence of the rule.

Parameters

glyphId	glyph code id
atIdx	index in rule sequence. Shall be: 0 <= atIdx < GetLookaheadContextLength()

Returns

true if glyph matches element from lookahead sequence

Reimplemented from iText.IO.Font.Otf.ContextualRule.