Interface Positionable

  • All Known Implementing Classes:
    CFFToType1Font, CustomFontMetricsMapper, Font, LazyFont, MultiByteFont

    public interface Positionable

    Optional interface which indicates that glyph positioning is supported and, if supported, can perform positioning.

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

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      int[][] performPositioning​(java.lang.CharSequence cs, java.lang.String script, java.lang.String language)
      Perform glyph positioning using an implied font size.
      int[][] performPositioning​(java.lang.CharSequence cs, java.lang.String script, java.lang.String language, int fontSize)
      Perform glyph positioning.
      boolean performsPositioning()
      Determines if font performs glyph positioning.
    • Method Detail

      • performsPositioning

        boolean performsPositioning()
        Determines if font performs glyph positioning.
        Returns:
        true if performs positioning
      • performPositioning

        int[][] performPositioning​(java.lang.CharSequence cs,
                                   java.lang.String script,
                                   java.lang.String language,
                                   int fontSize)
        Perform glyph positioning.
        Parameters:
        cs - character sequence to map to position offsets (advancement adjustments)
        script - a script identifier
        language - a language identifier
        fontSize - font size
        Returns:
        array (sequence) of 4-tuples of placement [PX,PY] and advance [AX,AY] adjustments, in that order, with one 4-tuple for each element of glyph sequence, or null if no non-zero adjustment applies
      • performPositioning

        int[][] performPositioning​(java.lang.CharSequence cs,
                                   java.lang.String script,
                                   java.lang.String language)
        Perform glyph positioning using an implied font size.
        Parameters:
        cs - character sequence to map to position offsets (advancement adjustments)
        script - a script identifier
        language - a language identifier
        Returns:
        array (sequence) of 4-tuples of placement [PX,PY] and advance [AX,AY] adjustments, in that order, with one 4-tuple for each element of glyph sequence, or null if no non-zero adjustment applies