Class GlyphDefinitionTable
java.lang.Object
org.apache.fop.complexscripts.fonts.GlyphTable
org.apache.fop.complexscripts.fonts.GlyphDefinitionTable
The GlyphDefinitionTable class is a glyph table that implements
glyph definition functionality according to the OpenType GDEF table.
This work was originally authored by Glenn Adams (gadams@apache.org).
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Nested Class Summary
Nested classes/interfaces inherited from class org.apache.fop.complexscripts.fonts.GlyphTable
GlyphTable.ChainedClassSequenceRule, GlyphTable.ChainedCoverageSequenceRule, GlyphTable.ChainedGlyphSequenceRule, GlyphTable.ClassSequenceRule, GlyphTable.CoverageSequenceRule, GlyphTable.GlyphSequenceRule, GlyphTable.HomogeneousRuleSet, GlyphTable.LookupSpec, GlyphTable.LookupTable, GlyphTable.Rule, GlyphTable.RuleLookup, GlyphTable.RuleSet, GlyphTable.UseSpec -
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final intattachment point subtable typestatic final intglyph class subtable typestatic final intligature caret subtable typestatic final intmark attachment subtable typestatic final intpre-defined glyph class - base glyphstatic final intpre-defined glyph class - component glyphstatic final intpre-defined glyph class - ligature glyphstatic final intpre-defined glyph class - mark glyphFields inherited from class org.apache.fop.complexscripts.fonts.GlyphTable
GLYPH_TABLE_TYPE_BASELINE, GLYPH_TABLE_TYPE_DEFINITION, GLYPH_TABLE_TYPE_JUSTIFICATION, GLYPH_TABLE_TYPE_POSITIONING, GLYPH_TABLE_TYPE_SUBSTITUTION, processors -
Constructor Summary
ConstructorsConstructorDescriptionGlyphDefinitionTable(List subtables, Map<String, ScriptProcessor> processors) Instantiate aGlyphDefinitionTableobject using the specified subtables. -
Method Summary
Modifier and TypeMethodDescriptionprotected voidaddSubtable(GlyphSubtable subtable) Add a subtable.static GlyphSubtablecreateSubtable(int type, String id, int sequence, int flags, int format, GlyphMappingTable mapping, List entries) Create a definition subtable according to the specified arguments.intgetGlyphClass(int gid) Determine glyph class.static intgetLookupTypeFromName(String name) Map a lookup type name to its constant (integer) value.static StringgetLookupTypeName(int type) Map a lookup type constant (integer) value to its name.intgetMarkAttachClass(int gid) Determine mark attachment class.booleanisGlyphClass(int gid, int gc) Determine if glyph belongs to pre-defined glyph class.booleanisMarkAttachClass(int gid, int mac) Determine if glyph belongs to (font specific) mark attachment class.reorderCombiningMarks(GlyphSequence gs, int[] widths, int[][] gpa, String script, String language) Reorder combining marks in glyph sequence so that they precede (within the sequence) the base character to which they are applied.Methods inherited from class org.apache.fop.complexscripts.fonts.GlyphTable
assembleLookups, findLookupTables, freezeSubtables, getGlyphDefinitions, getLookups, getLookupTable, getLookupTables, getTableTypeFromName, hasFeature, matchLookups, matchLookupSpecs, resolveLookupReferences, toString
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Field Details
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GDEF_LOOKUP_TYPE_GLYPH_CLASS
public static final int GDEF_LOOKUP_TYPE_GLYPH_CLASSglyph class subtable type- See Also:
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GDEF_LOOKUP_TYPE_ATTACHMENT_POINT
public static final int GDEF_LOOKUP_TYPE_ATTACHMENT_POINTattachment point subtable type- See Also:
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GDEF_LOOKUP_TYPE_LIGATURE_CARET
public static final int GDEF_LOOKUP_TYPE_LIGATURE_CARETligature caret subtable type- See Also:
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GDEF_LOOKUP_TYPE_MARK_ATTACHMENT
public static final int GDEF_LOOKUP_TYPE_MARK_ATTACHMENTmark attachment subtable type- See Also:
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GLYPH_CLASS_BASE
public static final int GLYPH_CLASS_BASEpre-defined glyph class - base glyph- See Also:
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GLYPH_CLASS_LIGATURE
public static final int GLYPH_CLASS_LIGATUREpre-defined glyph class - ligature glyph- See Also:
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GLYPH_CLASS_MARK
public static final int GLYPH_CLASS_MARKpre-defined glyph class - mark glyph- See Also:
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GLYPH_CLASS_COMPONENT
public static final int GLYPH_CLASS_COMPONENTpre-defined glyph class - component glyph- See Also:
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Constructor Details
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GlyphDefinitionTable
Instantiate aGlyphDefinitionTableobject using the specified subtables.- Parameters:
subtables- a list of identified subtables
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Method Details
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reorderCombiningMarks
public GlyphSequence reorderCombiningMarks(GlyphSequence gs, int[] widths, int[][] gpa, String script, String language) Reorder combining marks in glyph sequence so that they precede (within the sequence) the base character to which they are applied. N.B. In the case of LTR segments, marks are not reordered by this, method since when the segment is reversed by BIDI processing, marks are automatically reordered to precede their base glyph.- Parameters:
gs- an input glyph sequencewidths- associated advance widths (also reordered)gpa- associated glyph position adjustments (also reordered)script- a script identifierlanguage- a language identifier- Returns:
- the reordered (output) glyph sequence
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addSubtable
Add a subtable.- Overrides:
addSubtablein classGlyphTable- Parameters:
subtable- a (non-null) glyph subtable
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isGlyphClass
public boolean isGlyphClass(int gid, int gc) Determine if glyph belongs to pre-defined glyph class.- Parameters:
gid- a glyph identifier (index)gc- a pre-defined glyph class (GLYPH_CLASS_BASE|GLYPH_CLASS_LIGATURE|GLYPH_CLASS_MARK|GLYPH_CLASS_COMPONENT).- Returns:
- true if glyph belongs to specified glyph class
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getGlyphClass
public int getGlyphClass(int gid) Determine glyph class.- Parameters:
gid- a glyph identifier (index)- Returns:
- a pre-defined glyph class (GLYPH_CLASS_BASE|GLYPH_CLASS_LIGATURE|GLYPH_CLASS_MARK|GLYPH_CLASS_COMPONENT).
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isMarkAttachClass
public boolean isMarkAttachClass(int gid, int mac) Determine if glyph belongs to (font specific) mark attachment class.- Parameters:
gid- a glyph identifier (index)mac- a (font specific) mark attachment class- Returns:
- true if glyph belongs to specified mark attachment class
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getMarkAttachClass
public int getMarkAttachClass(int gid) Determine mark attachment class.- Parameters:
gid- a glyph identifier (index)- Returns:
- a non-negative mark attachment class, or -1 if no class defined
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getLookupTypeFromName
Map a lookup type name to its constant (integer) value.- Parameters:
name- lookup type name- Returns:
- lookup type
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getLookupTypeName
Map a lookup type constant (integer) value to its name.- Parameters:
type- lookup type- Returns:
- lookup type name
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createSubtable
public static GlyphSubtable createSubtable(int type, String id, int sequence, int flags, int format, GlyphMappingTable mapping, List entries) Create a definition subtable according to the specified arguments.- Parameters:
type- subtable typeid- subtable identifiersequence- subtable sequenceflags- subtable flags (must be zero)format- subtable formatmapping- subtable mapping tableentries- subtable entries- Returns:
- a glyph subtable instance
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