AbstractCodePointMapping (Apache FOP Core 2.11 API)
Date: 2025-04-24

org.apache.fop.fonts

## Class AbstractCodePointMapping

- java.lang.Object
- - org.apache.fop.fonts.AbstractCodePointMapping

- All Implemented Interfaces:
    SingleByteEncoding
  Direct Known Subclasses:
    CodePointMapping

      public class AbstractCodePointMapping
      extends Object
      implements SingleByteEncoding

  Abstract base class for code point mapping classes (1-byte character encodings).

- - ### Field Summary

    - ### Fields inherited from interface org.apache.fop.fonts.SingleByteEncoding

      `NOT_FOUND_CODE_POINT`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbstractCodePointMapping(String name, int[] table)` Main constructor.
    `AbstractCodePointMapping(String name, int[] table, String[] charNameMap)` Extended constructor.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected void` | `buildFromTable(int[] table)` Builds the internal lookup structures based on a given table.
    `String[]` | `getCharNameMap()` Returns the array of character names for this encoding.
    `short` | `getCodePointForGlyph(String charName)` Returns the index of a character/glyph with the given name.
    `String` | `getName()` Returns the encoding's name.
    `String` | `getNameFromCodePoint(int idx)`
    `char[]` | `getUnicodeCharMap()` Returns a character array with Unicode scalar values which can be used to map encoding code points to Unicode values.
    `char` | `getUnicodeForIndex(int idx)` Returns the main Unicode value that is associated with the given code point in the encoding.
    `char` | `mapChar(char c)` Maps a Unicode character to a code point in the encoding.
    `String` | `toString()`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### AbstractCodePointMapping

          public AbstractCodePointMapping(String name,
                                          int[] table)

      Main constructor.
      Parameters:
        `name` - the name of the encoding
        `table` - the table ([code point, unicode scalar value]+) with the mapping

    - #### AbstractCodePointMapping

          public AbstractCodePointMapping(String name,
                                          int[] table,
                                          String[] charNameMap)

      Extended constructor.
      Parameters:
        `name` - the name of the encoding
        `table` - the table ([code point, unicode scalar value]+) with the mapping
        `charNameMap` - all character names in the encoding (a value of null will be converted to ".notdef")

  - ### Method Detail

    - #### buildFromTable

          protected void buildFromTable(int[] table)

      Builds the internal lookup structures based on a given table.
      Parameters:
        `table` - the table ([code point, unicode scalar value]+) with the mapping

    - #### getName

          public String getName()

      Returns the encoding's name.
      Specified by:
        `getName` in interface `SingleByteEncoding`
      Returns:
        the name of the encoding

    - #### mapChar

          public final char mapChar(char c)

      Maps a Unicode character to a code point in the encoding.
      Specified by:
        `mapChar` in interface `SingleByteEncoding`
      Parameters:
        `c` - the Unicode character to map
      Returns:
        the code point in the encoding or 0 (=.notdef) if not found

    - #### getUnicodeForIndex

          public final char getUnicodeForIndex(int idx)

      Returns the main Unicode value that is associated with the given code point in the encoding. Note that multiple Unicode values can theoretically be mapped to one code point in the encoding.
      Parameters:
        `idx` - the code point in the encoding
      Returns:
        the Unicode value (or (NOT A CHARACTER) if no Unicode value is at that point)

    - #### getUnicodeCharMap

          public final char[] getUnicodeCharMap()

      Returns a character array with Unicode scalar values which can be used to map encoding code points to Unicode values. Note that this does not return all possible Unicode values that the encoding maps.
      Specified by:
        `getUnicodeCharMap` in interface `SingleByteEncoding`
      Returns:
        a character array with Unicode scalar values

    - #### getCodePointForGlyph

          public short getCodePointForGlyph(String charName)

      Returns the index of a character/glyph with the given name. Note that this method is relatively slow and should only be used for fallback operations.
      Parameters:
        `charName` - the character name
      Returns:
        the index of the character in the encoding or -1 if it doesn't exist

    - #### getNameFromCodePoint

          public String getNameFromCodePoint(int idx)

    - #### getCharNameMap

          public String[] getCharNameMap()

      Returns the array of character names for this encoding.
      Specified by:
        `getCharNameMap` in interface `SingleByteEncoding`
      Returns:
        the array of character names (unmapped code points are represented by a ".notdef" value)

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `Object`

Copyright © 2025 Apache Software Foundation. All rights reserved.