Font engine > Compact Font Format

TCFFFont = class
public
   Header: TCFFHeader;
   NameIndex, TopDictIndex, StringIndex, GlobalSubrIndex, CharStringsIndex, FontDictIndex: TCFFIndex;
   LocalSubrIndexes: array of TCFFIndex;
   TopDict: TCFFDict;
   PrivateDicts, FontDicts: array of TCFFDict;
   Name: string;
   Charset: array of record CharCode: word; Name: string end; //Glyph unicode code and name
   Encoding: array of word; //Glyph CID
   Ascent, Descent, LineGap, XHeight, CapHeight, UnderlinePosition, UnderlineThickness, ItalicAngle: integer;
   FirstChar, LastChar: integer;
   Widths: array of word;
   FontData: TBytes;
   CharStringType: integer;
   DefaultWidthX, NominalWidthX: word;
   IsType2: boolean;
   CMAP, CharsetCMAP: THtCMap;
   IsCIDFont: boolean;
   FDRanges: array of packed record First: word; FDIndex: byte end;
   EncodingName: string;
   FontMatrix: THtMatrixData;
   procedure ReadIndex(ST: TStream; var Res: TCFFIndex);
   procedure LoadfromStream(ST: TStream);
   procedure LoadfromType1Stream(ST: TStream);
   function AverageCharWidth: integer;
   function CharStringLocalSubr(CharIndex: integer): TPSSubroutines; end;

Header

CFF header

NameIndex, TopDictIndex, StringIndex, GlobalSubrIndex, CharStringsIndex, LocalSubrIndex, FontDictIndex

CFF indexes

TopDict, PrivateDict, FontDict

Font dictionaries

Name

Font name

Charset

Unicode code and adobe glyph name for font glyphs

Encoding

Glyph CIDs

Ascent, Descent, LineGap, XHeight, CapHeight, UnderlinePosition, UnderlineThickness, ItalicAngle

Font properties in design units

Widths

Glyph widths in design units

CharStringType

Type of data in CharStrings dictionary.

DefaulfWidthX, NiminalWidthX

Default and nominal glyph width

IsType2

Font type - Type2 or Type1

CMAP

Font characted map (glyph encoding).

IsCIDFont

CID font flag

FontMatrix

Font glyph matrix

LoadfromStream

Load Type2 font from stream

LoadfromType1Stream

Load Type1 font from stream

AverageCharWidth

Average glyph width

CharStringLocalSubr

Returnd subroutine for glyph