Field Detail

• LF_RIGHT_TO_LEFT

  public static final int LF_RIGHT_TO_LEFT

  lookup flag - right to left

  See Also:

  Constant Field Values

• LF_IGNORE_BASE

  public static final int LF_IGNORE_BASE

  lookup flag - ignore base glyphs

  See Also:

  Constant Field Values

• LF_IGNORE_LIGATURE

  public static final int LF_IGNORE_LIGATURE

  lookup flag - ignore ligatures

  See Also:

  Constant Field Values

• LF_IGNORE_MARK

  public static final int LF_IGNORE_MARK

  lookup flag - ignore marks

  See Also:

  Constant Field Values

• LF_USE_MARK_FILTERING_SET

  public static final int LF_USE_MARK_FILTERING_SET

  lookup flag - use mark filtering set

  See Also:

  Constant Field Values

• LF_RESERVED

  public static final int LF_RESERVED

  lookup flag - reserved

  See Also:

  Constant Field Values

• LF_MARK_ATTACHMENT_TYPE

  public static final int LF_MARK_ATTACHMENT_TYPE

  lookup flag - mark attachment type

  See Also:

  Constant Field Values

• LF_INTERNAL_USE_REVERSE_SCAN

  public static final int LF_INTERNAL_USE_REVERSE_SCAN

  internal flag - use reverse scan

  See Also:

  Constant Field Values

Constructor Detail

• GlyphSubtable

  protected GlyphSubtable​(java.lang.String lookupId,
                          int sequence,
                          int flags,
                          int format,
                          GlyphMappingTable mapping)

  Instantiate this glyph subtable.

  Parameters:

  lookupId - lookup identifier, having form of "lu%d" where %d is index of lookup in lookup list

  sequence - subtable sequence (within lookup), starting with zero

  flags - subtable flags

  format - subtable format

  mapping - subtable mapping table

Method Detail

• getLookupId

  public java.lang.String getLookupId()

  Returns:

  this subtable's lookup identifer

• getTableType

  public abstract int getTableType()

  Returns:

  this subtable's table type

• getType

  public abstract int getType()

  Returns:

  this subtable's type

• getTypeName

  public abstract java.lang.String getTypeName()

  Returns:

  this subtable's type name

• isCompatible

  public abstract 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.

  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

• usesReverseScan

  public abstract boolean usesReverseScan()

  Returns:

  true if subtable uses reverse scanning of glyph sequence, meaning from the last glyph in a glyph sequence to the first glyph

• getSequence

  public int getSequence()

  Returns:

  this subtable's sequence (index) within lookup

• getFlags

  public int getFlags()

  Returns:

  this subtable's flags

• getFormat

  public int getFormat()

  Returns:

  this subtable's format

• getGDEF

  public GlyphDefinitionTable getGDEF()

  Returns:

  this subtable's governing glyph definition table or null if none available

• getCoverage

  public GlyphCoverageMapping getCoverage()

  Returns:

  this subtable's coverage mapping or null if mapping is not a coverage mapping

• getClasses

  public GlyphClassMapping getClasses()

  Returns:

  this subtable's class mapping or null if mapping is not a class mapping

• getEntries

  public abstract java.util.List getEntries()

  Returns:

  this subtable's lookup entries

• getTable

  public GlyphTable getTable()

  Returns:

  this subtable's parent table (or null if undefined)

• setTable

  public void setTable​(GlyphTable table)
                throws java.lang.IllegalStateException

  Establish a weak reference from this subtable to its parent table. If table parameter is specified as null, then clear and remove weak reference.

  Parameters:

  table - the table or null

  Throws:

  java.lang.IllegalStateException - if table is already set to non-null

• resolveLookupReferences

  public void resolveLookupReferences​(java.util.Map<java.lang.String,​GlyphTable.LookupTable> lookupTables)

  Resolve references to lookup tables, e.g., in RuleLookup, to the lookup tables themselves.

  Parameters:

  lookupTables - map from lookup table identifers, e.g. "lu4", to lookup tables

• getCoverageIndex

  public int getCoverageIndex​(int gid)

  Map glyph id to coverage index.

  Parameters:

  gid - glyph id

  Returns:

  the corresponding coverage index of the specified glyph id

• getCoverageSize

  public int getCoverageSize()

  Map glyph id to coverage index.

  Returns:

  the corresponding coverage index of the specified glyph id

• hashCode

  public int hashCode()

  Overrides:

  hashCode in class java.lang.Object

• equals

  public boolean equals​(java.lang.Object o)

  Overrides:

  equals in class java.lang.Object

  Returns:

  true if the lookup identifier and the sequence number of the specified subtable is the same as the lookup identifier and sequence number of this subtable

• compareTo

  public int compareTo​(java.lang.Object o)

  Specified by:

  compareTo in interface java.lang.Comparable

  Returns:

  the result of comparing the lookup identifier and the sequence number of the specified subtable with the lookup identifier and sequence number of this subtable

• usesReverseScan

  public static boolean usesReverseScan​(GlyphSubtable[] subtables)

  Determine if any of the specified subtables uses reverse scanning.

  Parameters:

  subtables - array of glyph subtables

  Returns:

  true if any of the specified subtables uses reverse scanning.

• getFlags

  public static int getFlags​(GlyphSubtable[] subtables)
                      throws java.lang.IllegalStateException

  Determine consistent flags for a set of subtables.

  Parameters:

  subtables - array of glyph subtables

  Returns:

  consistent flags

  Throws:

  java.lang.IllegalStateException - if inconsistent flags