Class GlyphSubstitutionTable.ContextualSubtable
- java.lang.Object
-
- org.apache.fop.complexscripts.fonts.GlyphSubtable
-
- org.apache.fop.complexscripts.fonts.GlyphSubstitutionSubtable
-
- org.apache.fop.complexscripts.fonts.GlyphSubstitutionTable.ContextualSubtable
-
- All Implemented Interfaces:
java.lang.Comparable
,GlyphSubstitution
- Direct Known Subclasses:
GlyphSubstitutionTable.ContextualSubtableFormat1
,GlyphSubstitutionTable.ContextualSubtableFormat2
,GlyphSubstitutionTable.ContextualSubtableFormat3
- Enclosing class:
- GlyphSubstitutionTable
private abstract static class GlyphSubstitutionTable.ContextualSubtable extends GlyphSubstitutionSubtable
-
-
Field Summary
-
Fields inherited from class org.apache.fop.complexscripts.fonts.GlyphSubtable
LF_IGNORE_BASE, LF_IGNORE_LIGATURE, LF_IGNORE_MARK, LF_INTERNAL_USE_REVERSE_SCAN, LF_MARK_ATTACHMENT_TYPE, LF_RESERVED, LF_RIGHT_TO_LEFT, LF_USE_MARK_FILTERING_SET
-
-
Constructor Summary
Constructors Constructor Description ContextualSubtable(java.lang.String id, int sequence, int flags, int format, GlyphCoverageTable coverage, java.util.List entries)
-
Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description (package private) static GlyphSubstitutionSubtable
create(java.lang.String id, int sequence, int flags, int format, GlyphCoverageTable coverage, java.util.List entries)
abstract GlyphTable.RuleLookup[]
getLookups(int ci, int gi, GlyphSubstitutionState ss, int[] rv)
Obtain rule lookups set associated current input glyph context.int
getType()
boolean
isCompatible(GlyphSubtable subtable)
Determine if a glyph subtable is compatible with this glyph subtable.boolean
substitute(GlyphSubstitutionState ss)
Perform glyph substitution at the current index, mutating the substitution state object as required.-
Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphSubstitutionSubtable
getTableType, getTypeName, substitute, substitute, usesReverseScan
-
Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphSubtable
compareTo, equals, getClasses, getCoverage, getCoverageIndex, getCoverageSize, getEntries, getFlags, getFlags, getFormat, getGDEF, getLookupId, getSequence, getTable, hashCode, resolveLookupReferences, setTable, usesReverseScan
-
-
-
-
Constructor Detail
-
ContextualSubtable
public ContextualSubtable(java.lang.String id, int sequence, int flags, int format, GlyphCoverageTable coverage, java.util.List entries)
-
-
Method Detail
-
getType
public int getType()
- Specified by:
getType
in classGlyphSubtable
- Returns:
- this subtable's type
-
isCompatible
public boolean isCompatible(GlyphSubtable subtable)
Determine if a glyph subtable is compatible with this glyph subtable. Two glyph subtables are compatible if the both may appear in a single lookup table.- Overrides:
isCompatible
in classGlyphSubstitutionSubtable
- Parameters:
subtable
- a glyph subtable to determine compatibility- Returns:
- true if specified subtable is compatible with this glyph subtable, where by compatible is meant that they share the same lookup type
-
substitute
public boolean substitute(GlyphSubstitutionState ss)
Perform glyph substitution at the current index, mutating the substitution state object as required. Only the context associated with the current index is processed.- Specified by:
substitute
in interfaceGlyphSubstitution
- Overrides:
substitute
in classGlyphSubstitutionSubtable
- Parameters:
ss
- glyph substitution state object- Returns:
- true if the glyph subtable was applied, meaning that the current context matches the associated input context glyph coverage table
-
getLookups
public abstract GlyphTable.RuleLookup[] getLookups(int ci, int gi, GlyphSubstitutionState ss, int[] rv)
Obtain rule lookups set associated current input glyph context.- Parameters:
ci
- coverage index of glyph at current positiongi
- glyph index of glyph at current positionss
- glyph substitution staterv
- array of ints used to receive multiple return values, must be of length 1 or greater, where the first entry is used to return the input sequence length of the matched rule- Returns:
- array of rule lookups or null if none applies
-
create
static GlyphSubstitutionSubtable create(java.lang.String id, int sequence, int flags, int format, GlyphCoverageTable coverage, java.util.List entries)
-
-