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## org.apache.fop.complexscripts.fonts
Class GlyphDefinitionSubtable

    java.lang.Object
      org.apache.fop.complexscripts.fonts.GlyphSubtable
          org.apache.fop.complexscripts.fonts.GlyphDefinitionSubtable

All Implemented Interfaces:
  java.lang.Comparable, GlyphDefinition

    public abstract class GlyphDefinitionSubtable

extends GlyphSubtable
implements GlyphDefinition

The `GlyphDefinitionSubtable` implements an abstract base of a glyph definition subtable, providing a default implementation of the `GlyphDefinition` interface.

This work was originally authored by Glenn Adams (gadams@apache.org).

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
`protected` | `GlyphDefinitionSubtable(java.lang.String id, int sequence, int flags, int format, GlyphMappingTable mapping)` Instantiate a `GlyphDefinitionSubtable`.

Method Summary
`int` | `getTableType()`
`java.lang.String` | `getTypeName()`
`boolean` | `hasDefinition(int gi)` Determine if some definition is available for a specific glyph.
`boolean` | `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, getType, hashCode, isCompatible, resolveLookupReferences, setTable, usesReverseScan`

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### GlyphDefinitionSubtable

    protected GlyphDefinitionSubtable(java.lang.String id,
                                      int sequence,
                                      int flags,
                                      int format,
                                      GlyphMappingTable mapping)

  Instantiate a `GlyphDefinitionSubtable`.

  Parameters:
    `id` - subtable identifier
    `sequence` - subtable sequence
    `flags` - subtable flags
    `format` - subtable format
    `mapping` - subtable coverage table

Method Detail

### getTableType

    public int getTableType()

  Specified by:
    `getTableType` in class `GlyphSubtable`
  Returns:
    this subtable's table type

### getTypeName

    public java.lang.String getTypeName()

  Specified by:
    `getTypeName` in class `GlyphSubtable`
  Returns:
    this subtable's type name

### usesReverseScan

    public boolean usesReverseScan()

  Specified by:
    `usesReverseScan` in class `GlyphSubtable`
  Returns:
    true if subtable uses reverse scanning of glyph sequence, meaning from the last glyph in a glyph sequence to the first glyph

### hasDefinition

    public boolean hasDefinition(int gi)

  Determine if some definition is available for a specific glyph.

  Specified by:
    `hasDefinition` in interface `GlyphDefinition`
  Parameters:
    `gi` - a glyph index
  Returns:
    true if some (unspecified) definition is available for the specified glyph

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