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comparison: gfx/thebes/gfxFT2FontList.h
gfx/thebes/gfxFT2FontList.h
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- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:4fabe9ac6d63 |
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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_FT2FONTLIST_H | |
| 7 #define GFX_FT2FONTLIST_H | |
| 8 | |
| 9 #include "mozilla/MemoryReporting.h" | |
| 10 | |
| 11 #ifdef XP_WIN | |
| 12 #include "gfxWindowsPlatform.h" | |
| 13 #include <windows.h> | |
| 14 #endif | |
| 15 #include "gfxPlatformFontList.h" | |
| 16 | |
| 17 namespace mozilla { | |
| 18 namespace dom { | |
| 19 class FontListEntry; | |
| 20 }; | |
| 21 }; | |
| 22 using mozilla::dom::FontListEntry; | |
| 23 | |
| 24 class FontNameCache; | |
| 25 typedef struct FT_FaceRec_* FT_Face; | |
| 26 class nsZipArchive; | |
| 27 | |
| 28 class FT2FontEntry : public gfxFontEntry | |
| 29 { | |
| 30 public: | |
| 31 FT2FontEntry(const nsAString& aFaceName) : | |
| 32 gfxFontEntry(aFaceName), | |
| 33 mFTFace(nullptr), | |
| 34 mFontFace(nullptr), | |
| 35 mFTFontIndex(0) | |
| 36 { | |
| 37 } | |
| 38 | |
| 39 ~FT2FontEntry(); | |
| 40 | |
| 41 const nsString& GetName() const { | |
| 42 return Name(); | |
| 43 } | |
| 44 | |
| 45 // create a font entry for a downloaded font | |
| 46 static FT2FontEntry* | |
| 47 CreateFontEntry(const gfxProxyFontEntry &aProxyEntry, | |
| 48 const uint8_t *aFontData, uint32_t aLength); | |
| 49 | |
| 50 // create a font entry representing an installed font, identified by | |
| 51 // a FontListEntry; the freetype and cairo faces will not be instantiated | |
| 52 // until actually needed | |
| 53 static FT2FontEntry* | |
| 54 CreateFontEntry(const FontListEntry& aFLE); | |
| 55 | |
| 56 // Create a font entry for a given freetype face; if it is an installed font, | |
| 57 // also record the filename and index. | |
| 58 // aFontData (if non-nullptr) is NS_Malloc'ed data that aFace depends on, | |
| 59 // to be freed after the face is destroyed | |
| 60 static FT2FontEntry* | |
| 61 CreateFontEntry(FT_Face aFace, | |
| 62 const char *aFilename, uint8_t aIndex, | |
| 63 const nsAString& aName, | |
| 64 const uint8_t *aFontData = nullptr); | |
| 65 | |
| 66 virtual gfxFont *CreateFontInstance(const gfxFontStyle *aFontStyle, | |
| 67 bool aNeedsBold); | |
| 68 | |
| 69 // Create (if necessary) and return the cairo_font_face for this font. | |
| 70 // This may fail and return null, so caller must be prepared to handle this. | |
| 71 cairo_font_face_t *CairoFontFace(); | |
| 72 | |
| 73 // Create a cairo_scaled_font for this face, with the given style. | |
| 74 // This may fail and return null, so caller must be prepared to handle this. | |
| 75 cairo_scaled_font_t *CreateScaledFont(const gfxFontStyle *aStyle); | |
| 76 | |
| 77 nsresult ReadCMAP(FontInfoData *aFontInfoData = nullptr); | |
| 78 | |
| 79 virtual hb_blob_t* GetFontTable(uint32_t aTableTag) MOZ_OVERRIDE; | |
| 80 | |
| 81 virtual nsresult CopyFontTable(uint32_t aTableTag, | |
| 82 FallibleTArray<uint8_t>& aBuffer) MOZ_OVERRIDE; | |
| 83 | |
| 84 // Check for various kinds of brokenness, and set flags on the entry | |
| 85 // accordingly so that we avoid using bad font tables | |
| 86 void CheckForBrokenFont(gfxFontFamily *aFamily); | |
| 87 | |
| 88 virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf, | |
| 89 FontListSizes* aSizes) const; | |
| 90 virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf, | |
| 91 FontListSizes* aSizes) const; | |
| 92 | |
| 93 FT_Face mFTFace; | |
| 94 cairo_font_face_t *mFontFace; | |
| 95 | |
| 96 nsCString mFilename; | |
| 97 uint8_t mFTFontIndex; | |
| 98 }; | |
| 99 | |
| 100 class FT2FontFamily : public gfxFontFamily | |
| 101 { | |
| 102 public: | |
| 103 FT2FontFamily(const nsAString& aName) : | |
| 104 gfxFontFamily(aName) { } | |
| 105 | |
| 106 // Append this family's faces to the IPC fontlist | |
| 107 void AddFacesToFontList(InfallibleTArray<FontListEntry>* aFontList); | |
| 108 }; | |
| 109 | |
| 110 class gfxFT2FontList : public gfxPlatformFontList | |
| 111 { | |
| 112 public: | |
| 113 gfxFT2FontList(); | |
| 114 | |
| 115 virtual gfxFontFamily* GetDefaultFont(const gfxFontStyle* aStyle); | |
| 116 | |
| 117 virtual gfxFontEntry* LookupLocalFont(const gfxProxyFontEntry *aProxyEntry, | |
| 118 const nsAString& aFontName); | |
| 119 | |
| 120 virtual gfxFontEntry* MakePlatformFont(const gfxProxyFontEntry *aProxyEntry, | |
| 121 const uint8_t *aFontData, | |
| 122 uint32_t aLength); | |
| 123 | |
| 124 void GetFontList(InfallibleTArray<FontListEntry>* retValue); | |
| 125 | |
| 126 static gfxFT2FontList* PlatformFontList() { | |
| 127 return static_cast<gfxFT2FontList*>(gfxPlatformFontList::PlatformFontList()); | |
| 128 } | |
| 129 | |
| 130 protected: | |
| 131 virtual nsresult InitFontList(); | |
| 132 | |
| 133 void AppendFaceFromFontListEntry(const FontListEntry& aFLE, | |
| 134 bool isStdFile); | |
| 135 | |
| 136 void AppendFacesFromFontFile(const nsCString& aFileName, | |
| 137 bool isStdFile = false, | |
| 138 FontNameCache *aCache = nullptr); | |
| 139 | |
| 140 void AppendFacesFromOmnijarEntry(nsZipArchive *aReader, | |
| 141 const nsCString& aEntryName, | |
| 142 FontNameCache *aCache, | |
| 143 bool aJarChanged); | |
| 144 | |
| 145 void AppendFacesFromCachedFaceList(const nsCString& aFileName, | |
| 146 bool isStdFile, | |
| 147 const nsCString& aFaceList); | |
| 148 | |
| 149 void AddFaceToList(const nsCString& aEntryName, uint32_t aIndex, | |
| 150 bool aStdFile, FT_Face aFace, nsCString& aFaceList); | |
| 151 | |
| 152 void FindFonts(); | |
| 153 | |
| 154 void FindFontsInOmnijar(FontNameCache *aCache); | |
| 155 | |
| 156 #ifdef ANDROID | |
| 157 void FindFontsInDir(const nsCString& aDir, FontNameCache* aFNC); | |
| 158 #endif | |
| 159 | |
| 160 nsTHashtable<nsStringHashKey> mSkipSpaceLookupCheckFamilies; | |
| 161 }; | |
| 162 | |
| 163 #endif /* GFX_FT2FONTLIST_H */ |
