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comparison: gfx/thebes/gfxFT2Fonts.h
gfx/thebes/gfxFT2Fonts.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_FT2FONTS_H | |
| 7 #define GFX_FT2FONTS_H | |
| 8 | |
| 9 #include "mozilla/MemoryReporting.h" | |
| 10 #include "cairo.h" | |
| 11 #include "gfxTypes.h" | |
| 12 #include "gfxFont.h" | |
| 13 #include "gfxFT2FontBase.h" | |
| 14 #include "gfxContext.h" | |
| 15 #include "gfxFontUtils.h" | |
| 16 #include "gfxUserFontSet.h" | |
| 17 | |
| 18 class FT2FontEntry; | |
| 19 | |
| 20 class gfxFT2Font : public gfxFT2FontBase { | |
| 21 public: // new functions | |
| 22 gfxFT2Font(cairo_scaled_font_t *aCairoFont, | |
| 23 FT2FontEntry *aFontEntry, | |
| 24 const gfxFontStyle *aFontStyle, | |
| 25 bool aNeedsBold); | |
| 26 virtual ~gfxFT2Font (); | |
| 27 | |
| 28 FT2FontEntry *GetFontEntry(); | |
| 29 | |
| 30 static already_AddRefed<gfxFT2Font> | |
| 31 GetOrMakeFont(const nsAString& aName, const gfxFontStyle *aStyle, | |
| 32 bool aNeedsBold = false); | |
| 33 | |
| 34 static already_AddRefed<gfxFT2Font> | |
| 35 GetOrMakeFont(FT2FontEntry *aFontEntry, const gfxFontStyle *aStyle, | |
| 36 bool aNeedsBold = false); | |
| 37 | |
| 38 struct CachedGlyphData { | |
| 39 CachedGlyphData() | |
| 40 : glyphIndex(0xffffffffU) { } | |
| 41 | |
| 42 CachedGlyphData(uint32_t gid) | |
| 43 : glyphIndex(gid) { } | |
| 44 | |
| 45 uint32_t glyphIndex; | |
| 46 int32_t lsbDelta; | |
| 47 int32_t rsbDelta; | |
| 48 int32_t xAdvance; | |
| 49 }; | |
| 50 | |
| 51 const CachedGlyphData* GetGlyphDataForChar(uint32_t ch) { | |
| 52 CharGlyphMapEntryType *entry = mCharGlyphCache.PutEntry(ch); | |
| 53 | |
| 54 if (!entry) | |
| 55 return nullptr; | |
| 56 | |
| 57 if (entry->mData.glyphIndex == 0xffffffffU) { | |
| 58 // this is a new entry, fill it | |
| 59 FillGlyphDataForChar(ch, &entry->mData); | |
| 60 } | |
| 61 | |
| 62 return &entry->mData; | |
| 63 } | |
| 64 | |
| 65 virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf, | |
| 66 FontCacheSizes* aSizes) const; | |
| 67 virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf, | |
| 68 FontCacheSizes* aSizes) const; | |
| 69 | |
| 70 #ifdef USE_SKIA | |
| 71 virtual mozilla::TemporaryRef<mozilla::gfx::GlyphRenderingOptions> GetGlyphRenderingOptions(); | |
| 72 #endif | |
| 73 | |
| 74 protected: | |
| 75 virtual bool ShapeText(gfxContext *aContext, | |
| 76 const char16_t *aText, | |
| 77 uint32_t aOffset, | |
| 78 uint32_t aLength, | |
| 79 int32_t aScript, | |
| 80 gfxShapedText *aShapedText, | |
| 81 bool aPreferPlatformShaping); | |
| 82 | |
| 83 void FillGlyphDataForChar(uint32_t ch, CachedGlyphData *gd); | |
| 84 | |
| 85 void AddRange(const char16_t *aText, | |
| 86 uint32_t aOffset, | |
| 87 uint32_t aLength, | |
| 88 gfxShapedText *aShapedText); | |
| 89 | |
| 90 typedef nsBaseHashtableET<nsUint32HashKey, CachedGlyphData> CharGlyphMapEntryType; | |
| 91 typedef nsTHashtable<CharGlyphMapEntryType> CharGlyphMap; | |
| 92 CharGlyphMap mCharGlyphCache; | |
| 93 }; | |
| 94 | |
| 95 #ifndef ANDROID // not needed on Android, uses the standard gfxFontGroup directly | |
| 96 class gfxFT2FontGroup : public gfxFontGroup { | |
| 97 public: // new functions | |
| 98 gfxFT2FontGroup (const nsAString& families, | |
| 99 const gfxFontStyle *aStyle, | |
| 100 gfxUserFontSet *aUserFontSet); | |
| 101 virtual ~gfxFT2FontGroup (); | |
| 102 | |
| 103 protected: // from gfxFontGroup | |
| 104 | |
| 105 virtual gfxFontGroup *Copy(const gfxFontStyle *aStyle); | |
| 106 | |
| 107 | |
| 108 protected: // new functions | |
| 109 | |
| 110 static bool FontCallback (const nsAString & fontName, | |
| 111 const nsACString & genericName, | |
| 112 bool aUseFontSet, | |
| 113 void *closure); | |
| 114 bool mEnableKerning; | |
| 115 | |
| 116 void GetPrefFonts(nsIAtom *aLangGroup, | |
| 117 nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList); | |
| 118 void GetCJKPrefFonts(nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList); | |
| 119 void FamilyListToArrayList(const nsString& aFamilies, | |
| 120 nsIAtom *aLangGroup, | |
| 121 nsTArray<nsRefPtr<gfxFontEntry> > *aFontEntryList); | |
| 122 already_AddRefed<gfxFT2Font> WhichFontSupportsChar(const nsTArray<nsRefPtr<gfxFontEntry> >& aFontEntryList, | |
| 123 uint32_t aCh); | |
| 124 already_AddRefed<gfxFont> WhichPrefFontSupportsChar(uint32_t aCh); | |
| 125 already_AddRefed<gfxFont> | |
| 126 WhichSystemFontSupportsChar(uint32_t aCh, int32_t aRunScript); | |
| 127 | |
| 128 nsTArray<gfxTextRange> mRanges; | |
| 129 nsString mString; | |
| 130 }; | |
| 131 #endif // !ANDROID | |
| 132 | |
| 133 #endif /* GFX_FT2FONTS_H */ | |
| 134 |
