gfx/thebes/gfxPangoFonts.h@b8a032363ba2 (annotated)
gfx/thebes/gfxPangoFonts.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef GFX_PANGOFONTS_H |
| michael@0 | 7 | #define GFX_PANGOFONTS_H |
| michael@0 | 8 | |
| michael@0 | 9 | #include "cairo.h" |
| michael@0 | 10 | #include "gfxTypes.h" |
| michael@0 | 11 | #include "gfxFont.h" |
| michael@0 | 12 | |
| michael@0 | 13 | #include "nsAutoRef.h" |
| michael@0 | 14 | #include "nsTArray.h" |
| michael@0 | 15 | |
| michael@0 | 16 | #include <pango/pango.h> |
| michael@0 | 17 | |
| michael@0 | 18 | class gfxFcFontSet; |
| michael@0 | 19 | class gfxFcFont; |
| michael@0 | 20 | class gfxProxyFontEntry; |
| michael@0 | 21 | typedef struct _FcPattern FcPattern; |
| michael@0 | 22 | typedef struct FT_FaceRec_* FT_Face; |
| michael@0 | 23 | typedef struct FT_LibraryRec_ *FT_Library; |
| michael@0 | 24 | |
| michael@0 | 25 | class gfxPangoFontGroup : public gfxFontGroup { |
| michael@0 | 26 | public: |
| michael@0 | 27 | gfxPangoFontGroup (const nsAString& families, |
| michael@0 | 28 | const gfxFontStyle *aStyle, |
| michael@0 | 29 | gfxUserFontSet *aUserFontSet); |
| michael@0 | 30 | virtual ~gfxPangoFontGroup (); |
| michael@0 | 31 | |
| michael@0 | 32 | virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle); |
| michael@0 | 33 | |
| michael@0 | 34 | virtual gfxFont *GetFontAt(int32_t i); |
| michael@0 | 35 | |
| michael@0 | 36 | virtual void UpdateFontList(); |
| michael@0 | 37 | |
| michael@0 | 38 | virtual already_AddRefed<gfxFont> |
| michael@0 | 39 | FindFontForChar(uint32_t aCh, uint32_t aPrevCh, int32_t aRunScript, |
| michael@0 | 40 | gfxFont *aPrevMatchedFont, |
| michael@0 | 41 | uint8_t *aMatchType); |
| michael@0 | 42 | |
| michael@0 | 43 | static void Shutdown(); |
| michael@0 | 44 | |
| michael@0 | 45 | // Used for @font-face { src: local(); } |
| michael@0 | 46 | static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry, |
| michael@0 | 47 | const nsAString &aFullname); |
| michael@0 | 48 | // Used for @font-face { src: url(); } |
| michael@0 | 49 | static gfxFontEntry *NewFontEntry(const gfxProxyFontEntry &aProxyEntry, |
| michael@0 | 50 | const uint8_t *aFontData, |
| michael@0 | 51 | uint32_t aLength); |
| michael@0 | 52 | |
| michael@0 | 53 | private: |
| michael@0 | 54 | // @param aLang [in] language to use for pref fonts and system default font |
| michael@0 | 55 | // selection, or nullptr for the language guessed from the |
| michael@0 | 56 | // gfxFontStyle. |
| michael@0 | 57 | // The FontGroup holds a reference to this set. |
| michael@0 | 58 | gfxFcFontSet *GetFontSet(PangoLanguage *aLang = nullptr); |
| michael@0 | 59 | |
| michael@0 | 60 | class FontSetByLangEntry { |
| michael@0 | 61 | public: |
| michael@0 | 62 | FontSetByLangEntry(PangoLanguage *aLang, gfxFcFontSet *aFontSet); |
| michael@0 | 63 | PangoLanguage *mLang; |
| michael@0 | 64 | nsRefPtr<gfxFcFontSet> mFontSet; |
| michael@0 | 65 | }; |
| michael@0 | 66 | // There is only one of entry in this array unless characters from scripts |
| michael@0 | 67 | // of other languages are measured. |
| michael@0 | 68 | nsAutoTArray<FontSetByLangEntry,1> mFontSets; |
| michael@0 | 69 | |
| michael@0 | 70 | gfxFloat mSizeAdjustFactor; |
| michael@0 | 71 | PangoLanguage *mPangoLanguage; |
| michael@0 | 72 | |
| michael@0 | 73 | void GetFcFamilies(nsTArray<nsString> *aFcFamilyList, |
| michael@0 | 74 | nsIAtom *aLanguage); |
| michael@0 | 75 | |
| michael@0 | 76 | // @param aLang [in] language to use for pref fonts and system font |
| michael@0 | 77 | // resolution, or nullptr to guess a language from the gfxFontStyle. |
| michael@0 | 78 | // @param aMatchPattern [out] if non-nullptr, will return the pattern used. |
| michael@0 | 79 | already_AddRefed<gfxFcFontSet> |
| michael@0 | 80 | MakeFontSet(PangoLanguage *aLang, gfxFloat aSizeAdjustFactor, |
| michael@0 | 81 | nsAutoRef<FcPattern> *aMatchPattern = nullptr); |
| michael@0 | 82 | |
| michael@0 | 83 | gfxFcFontSet *GetBaseFontSet(); |
| michael@0 | 84 | gfxFcFont *GetBaseFont(); |
| michael@0 | 85 | |
| michael@0 | 86 | gfxFloat GetSizeAdjustFactor() |
| michael@0 | 87 | { |
| michael@0 | 88 | if (mFontSets.Length() == 0) |
| michael@0 | 89 | GetBaseFontSet(); |
| michael@0 | 90 | return mSizeAdjustFactor; |
| michael@0 | 91 | } |
| michael@0 | 92 | |
| michael@0 | 93 | friend class gfxSystemFcFontEntry; |
| michael@0 | 94 | static FT_Library GetFTLibrary(); |
| michael@0 | 95 | }; |
| michael@0 | 96 | |
| michael@0 | 97 | #endif /* GFX_PANGOFONTS_H */ |
