THotPDF Font Fallback Methods
Konfigurira uređena zamjenska lica i izlaže dijagnostiku pokrivanja i vertikalnih metrika
Deklaracije
procedure SetFontFallbackChain(Script: THPDFFontScript;
const FontNames: array of AnsiString);
procedure ClearFontFallbackChain(Script: THPDFFontScript);
procedure ClearAllFontFallbackChains;
function FontFallbackCount(Script: THPDFFontScript): Integer;
function FontFallbackName(Script: THPDFFontScript;
Index: Integer): AnsiString;
function FontScriptForCodePoint(CodePoint: Cardinal): THPDFFontScript;
function ResolveFontForCodePoint(CodePoint: Cardinal;
const PrimaryFontName: AnsiString;
out ResolvedFontName: AnsiString): boolean; overload;
function ResolveFontForCodePoint(CodePoint: Cardinal;
const PrimaryFontName: AnsiString; const FontStyle: TFontStyles;
out ResolvedFontName: AnsiString): boolean; overload;
function AnalyzeUnresolvedGlyphs(const Text: WideString;
const PrimaryFontName: AnsiString): THPDFUnresolvedGlyphInfoArray; overload;
function AnalyzeUnresolvedGlyphs(const Text: WideString;
const PrimaryFontName: AnsiString; const FontStyle: TFontStyles):
THPDFUnresolvedGlyphInfoArray; overload;
function GetUnresolvedGlyphs: THPDFUnresolvedGlyphInfoArray;
procedure ClearUnresolvedGlyphs;
function GetVerticalGlyphMetrics(CodePoint: Cardinal;
out AdvanceY, OriginY: Integer): boolean;
procedure SetVerticalDefaultMetrics(AdvanceY, OriginY: Integer);
Vrste
THPDFFontScript = (hfsCommon, hfsLatin, hfsGreek, hfsCyrillic,
hfsHebrew, hfsArabic, hfsIndic, hfsSoutheastAsian, hfsCJK,
hfsKana, hfsHangul, hfsEmoji, hfsOther);
THPDFUnresolvedGlyphInfo = record
CodePoint: Cardinal;
FontName: AnsiString;
Script: THPDFFontScript;
SuggestedFonts: AnsiString;
end;
THPDFUnresolvedGlyphInfoArray = array of THPDFUnresolvedGlyphInfo;
Teme članova
- SetFontFallbackChain
- ClearFontFallbackChain
- ClearAllFontFallbackChains
- FontFallbackCount
- FontFallbackName
- FontScriptForCodePoint
- ResolveFontForCodePoint
- AnalyzeUnresolvedGlyphs
- GetUnresolvedGlyphs
- ClearUnresolvedGlyphs
- GetVerticalGlyphMetrics
- SetVerticalDefaultMetrics
- VerticalDefaultAdvanceY
- VerticalDefaultOriginY
Behaviour
ResolveFontForCodePointnajprije provjerava primarno lice, zatim odgovarajući lanac pisma, a ondahfsCommon- Rezultat je true samo kada instalirano lice razrješuje skalarn bez GDI zamjene lica
- Ponovljena ispitivanja obitelji, stila lica i skalarna koriste ograničenu predmemoriju od 1024 unosa koja se poništava nakon privatne registracije fonta
- Preopterećenja s eksplicitnim stilom ispituju odabrano podebljano i iskošeno lice; izvorna preopterećenja zadržavaju ponašanje s regularnim licem
AnalyzeUnresolvedGlyphsdeduplicira ponovljene parove neriješenih skalarna i primarnih licaGetVerticalGlyphMetricsvraća registrirane OpenType vertikalne metrike kada su dostupne, a inače izlaže konfigurirane zadane vrijednostiSetVerticalDefaultMetricszahtijeva pozitivan pomak u prostoru glifa od 1000 jedinica