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comparison: gfx/thebes/gfxPangoFonts.h
gfx/thebes/gfxPangoFonts.h
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| 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef GFX_PANGOFONTS_H | |
| 7 #define GFX_PANGOFONTS_H | |
| 8 | |
| 9 #include "cairo.h" | |
| 10 #include "gfxTypes.h" | |
| 11 #include "gfxFont.h" | |
| 12 | |
| 13 #include "nsAutoRef.h" | |
| 14 #include "nsTArray.h" | |
| 15 | |
| 16 #include <pango/pango.h> | |
| 17 | |
| 18 class gfxFcFontSet; | |
| 19 class gfxFcFont; | |
| 20 class gfxProxyFontEntry; | |
| 21 typedef struct _FcPattern FcPattern; | |
| 22 typedef struct FT_FaceRec_* FT_Face; | |
| 23 typedef struct FT_LibraryRec_ *FT_Library; | |
| 24 | |
| 25 class gfxPangoFontGroup : public gfxFontGroup { | |
| 26 public: | |
| 27 gfxPangoFontGroup (const nsAString& families, | |
| 28 const gfxFontStyle *aStyle, | |
| 29 gfxUserFontSet *aUserFontSet); | |
| 30 virtual ~gfxPangoFontGroup (); | |
| 31 | |
| 32 virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle); | |
| 33 | |
| 34 virtual gfxFont *GetFontAt(int32_t i); | |
| 35 | |
| 36 virtual void UpdateFontList(); | |
| 37 | |
| 38 virtual already_AddRefed<gfxFont> | |
| 39 FindFontForChar(uint32_t aCh, uint32_t aPrevCh, int32_t aRunScript, | |
| 40 gfxFont *aPrevMatchedFont, | |
| 41 uint8_t *aMatchType); | |
| 42 | |
| 43 static void Shutdown(); | |
| 44 | |
| 45 // Used for @font-face { src: local(); } | |
| 46 static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry, | |
| 47 const nsAString &aFullname); | |
| 48 // Used for @font-face { src: url(); } | |
| 49 static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry, | |
| 50 const uint8_t *aFontData, | |
| 51 uint32_t aLength); | |
| 52 | |
| 53 private: | |
| 54 // @param aLang [in] language to use for pref fonts and system default font | |
| 55 // selection, or nullptr for the language guessed from the | |
| 56 // gfxFontStyle. | |
| 57 // The FontGroup holds a reference to this set. | |
| 58 gfxFcFontSet *GetFontSet(PangoLanguage *aLang = nullptr); | |
| 59 | |
| 60 class FontSetByLangEntry { | |
| 61 public: | |
| 62 FontSetByLangEntry(PangoLanguage *aLang, gfxFcFontSet *aFontSet); | |
| 63 PangoLanguage *mLang; | |
| 64 nsRefPtr<gfxFcFontSet> mFontSet; | |
| 65 }; | |
| 66 // There is only one of entry in this array unless characters from scripts | |
| 67 // of other languages are measured. | |
| 68 nsAutoTArray<FontSetByLangEntry,1> mFontSets; | |
| 69 | |
| 70 gfxFloat mSizeAdjustFactor; | |
| 71 PangoLanguage *mPangoLanguage; | |
| 72 | |
| 73 void GetFcFamilies(nsTArray<nsString> *aFcFamilyList, | |
| 74 nsIAtom *aLanguage); | |
| 75 | |
| 76 // @param aLang [in] language to use for pref fonts and system font | |
| 77 // resolution, or nullptr to guess a language from the gfxFontStyle. | |
| 78 // @param aMatchPattern [out] if non-nullptr, will return the pattern used. | |
| 79 already_AddRefed<gfxFcFontSet> | |
| 80 MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor, | |
| 81 nsAutoRef<FcPattern> *aMatchPattern = nullptr); | |
| 82 | |
| 83 gfxFcFontSet *GetBaseFontSet(); | |
| 84 gfxFcFont *GetBaseFont(); | |
| 85 | |
| 86 gfxFloat GetSizeAdjustFactor() | |
| 87 { | |
| 88 if (mFontSets.Length() == 0) | |
| 89 GetBaseFontSet(); | |
| 90 return mSizeAdjustFactor; | |
| 91 } | |
| 92 | |
| 93 friend class gfxSystemFcFontEntry; | |
| 94 static FT_Library GetFTLibrary(); | |
| 95 }; | |
| 96 | |
| 97 #endif /* GFX_PANGOFONTS_H */ |
