Interface GlyphPositioning

All Known Implementing Classes:
GlyphPositioningSubtable, GlyphPositioningTable.ChainedContextualSubtable, GlyphPositioningTable.ChainedContextualSubtableFormat1, GlyphPositioningTable.ChainedContextualSubtableFormat2, GlyphPositioningTable.ChainedContextualSubtableFormat3, GlyphPositioningTable.ContextualSubtable, GlyphPositioningTable.ContextualSubtableFormat1, GlyphPositioningTable.ContextualSubtableFormat2, GlyphPositioningTable.ContextualSubtableFormat3, GlyphPositioningTable.CursiveSubtable, GlyphPositioningTable.CursiveSubtableFormat1, GlyphPositioningTable.MarkToBaseSubtable, GlyphPositioningTable.MarkToBaseSubtableFormat1, GlyphPositioningTable.MarkToLigatureSubtable, GlyphPositioningTable.MarkToLigatureSubtableFormat1, GlyphPositioningTable.MarkToMarkSubtable, GlyphPositioningTable.MarkToMarkSubtableFormat1, GlyphPositioningTable.PairSubtable, GlyphPositioningTable.PairSubtableFormat1, GlyphPositioningTable.PairSubtableFormat2, GlyphPositioningTable.SingleSubtable, GlyphPositioningTable.SingleSubtableFormat1, GlyphPositioningTable.SingleSubtableFormat2
public interface GlyphPositioning

The GlyphPositioning interface is implemented by a glyph positioning subtable that supports the determination of glyph positioning information based on script and language of the corresponding character content.

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

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    position(GlyphPositioningState ps)
    Perform glyph positioning at the current index, mutating the positioning state object as required.

  • Method Details

    • position

      boolean position(GlyphPositioningState ps)
      Perform glyph positioning at the current index, mutating the positioning state object as required. Only the context associated with the current index is processed.
      Parameters:
      ps - glyph positioning state object
      Returns:
      true if the glyph subtable applies, meaning that the current context matches the associated input context glyph coverage table; note that returning true does not mean any position adjustment occurred; it only means that no further glyph subtables for the current lookup table should be applied.