Package org.apache.fontbox.ttf

Class CmapSubtable

  • All Implemented Interfaces:
    CmapLookup
    public class CmapSubtable
extends java.lang.Object
implements CmapLookup
    A "cmap" subtable.

    • Field Detail

      • LOG

        private static final org.apache.commons.logging.Log LOG

      • platformId

        private int platformId

      • platformEncodingId

        private int platformEncodingId

      • subTableOffset

        private long subTableOffset

      • glyphIdToCharacterCode

        private int[] glyphIdToCharacterCode

      • glyphIdToCharacterCodeMultiple

        private final java.util.Map<java.lang.Integer,​java.util.List<java.lang.Integer>> glyphIdToCharacterCodeMultiple

      • characterCodeToGlyphId

        private java.util.Map<java.lang.Integer,​java.lang.Integer> characterCodeToGlyphId

    • Constructor Detail

      • CmapSubtable

        public CmapSubtable()

    • Method Detail

      • initData

        void initData​(TTFDataStream data)
       throws java.io.IOException
        This will read the required data from the stream.
        Parameters:
        data - The stream to read the data from.
        Throws:
        java.io.IOException - If there is an error reading the data.

      • initSubtable

        void initSubtable​(CmapTable cmap,
                  int numGlyphs,
                  TTFDataStream data)
           throws java.io.IOException
        This will read the required data from the stream.
        Parameters:
        cmap - the CMAP this encoding belongs to.
        numGlyphs - number of glyphs.
        data - The stream to read the data from.
        Throws:
        java.io.IOException - If there is an error reading the data.

      • processSubtype8

        void processSubtype8​(TTFDataStream data,
                     int numGlyphs)
              throws java.io.IOException
        Reads a format 8 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype10

        void processSubtype10​(TTFDataStream data,
                      int numGlyphs)
               throws java.io.IOException
        Reads a format 10 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype12

        void processSubtype12​(TTFDataStream data,
                      int numGlyphs)
               throws java.io.IOException
        Reads a format 12 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype13

        void processSubtype13​(TTFDataStream data,
                      int numGlyphs)
               throws java.io.IOException
        Reads a format 13 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype14

        void processSubtype14​(TTFDataStream data,
                      int numGlyphs)
               throws java.io.IOException
        Reads a format 14 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype6

        void processSubtype6​(TTFDataStream data,
                     int numGlyphs)
              throws java.io.IOException
        Reads a format 6 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype4

        void processSubtype4​(TTFDataStream data,
                     int numGlyphs)
              throws java.io.IOException
        Reads a format 4 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • buildGlyphIdToCharacterCodeLookup

        private void buildGlyphIdToCharacterCodeLookup​(int maxGlyphId)

      • processSubtype2

        void processSubtype2​(TTFDataStream data,
                     int numGlyphs)
              throws java.io.IOException
        Read a format 2 subtable.
        Parameters:
        data - the data stream of the to be parsed ttf font
        numGlyphs - number of glyphs to be read
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • processSubtype0

        void processSubtype0​(TTFDataStream data)
              throws java.io.IOException
        Initialize the CMapEntry when it is a subtype 0.
        Parameters:
        data - the data stream of the to be parsed ttf font
        Throws:
        java.io.IOException - If there is an error parsing the true type font.

      • newGlyphIdToCharacterCode

        private int[] newGlyphIdToCharacterCode​(int size)
        Workaround for the fact that glyphIdToCharacterCode doesn't distinguish between missing character codes and code 0.

      • getPlatformEncodingId

        public int getPlatformEncodingId()
        Returns:
        Returns the platformEncodingId.

      • setPlatformEncodingId

        public void setPlatformEncodingId​(int platformEncodingIdValue)
        Parameters:
        platformEncodingIdValue - The platformEncodingId to set.

      • getPlatformId

        public int getPlatformId()
        Returns:
        Returns the platformId.

      • setPlatformId

        public void setPlatformId​(int platformIdValue)
        Parameters:
        platformIdValue - The platformId to set.

      • getGlyphId

        public int getGlyphId​(int characterCode)
        Returns the GlyphId linked with the given character code.
        Specified by:
        getGlyphId in interface CmapLookup
        Parameters:
        characterCode - the given character code to be mapped
        Returns:
        glyphId the corresponding glyph id for the given character code

      • getCharacterCode

        @Deprecated
public java.lang.Integer getCharacterCode​(int gid)
        Deprecated.
        the mapping may be ambiguous, see getCharCodes(int). The first mapped value is returned by default.
        Returns the character code for the given GID, or null if there is none.
        Parameters:
        gid - glyph id
        Returns:
        character code

      • getCharCode

        private int getCharCode​(int gid)

      • getCharCodes

        public java.util.List<java.lang.Integer> getCharCodes​(int gid)
        Returns all possible character codes for the given gid, or null if there is none.
        Specified by:
        getCharCodes in interface CmapLookup
        Parameters:
        gid - glyph id
        Returns:
        a list with all character codes the given gid maps to

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object