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comparison: gfx/thebes/gfxDWriteFonts.h
gfx/thebes/gfxDWriteFonts.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_WINDOWSDWRITEFONTS_H | |
| 7 #define GFX_WINDOWSDWRITEFONTS_H | |
| 8 | |
| 9 #include "mozilla/MemoryReporting.h" | |
| 10 #include <dwrite.h> | |
| 11 | |
| 12 #include "gfxFont.h" | |
| 13 #include "gfxUserFontSet.h" | |
| 14 #include "cairo-win32.h" | |
| 15 | |
| 16 #include "nsDataHashtable.h" | |
| 17 #include "nsHashKeys.h" | |
| 18 | |
| 19 /** | |
| 20 * \brief Class representing a font face for a font entry. | |
| 21 */ | |
| 22 class gfxDWriteFont : public gfxFont | |
| 23 { | |
| 24 public: | |
| 25 gfxDWriteFont(gfxFontEntry *aFontEntry, | |
| 26 const gfxFontStyle *aFontStyle, | |
| 27 bool aNeedsBold = false, | |
| 28 AntialiasOption = kAntialiasDefault); | |
| 29 ~gfxDWriteFont(); | |
| 30 | |
| 31 virtual gfxFont* CopyWithAntialiasOption(AntialiasOption anAAOption); | |
| 32 | |
| 33 virtual const gfxFont::Metrics& GetMetrics(); | |
| 34 | |
| 35 virtual uint32_t GetSpaceGlyph(); | |
| 36 | |
| 37 virtual bool SetupCairoFont(gfxContext *aContext); | |
| 38 | |
| 39 virtual bool AllowSubpixelAA() { return mAllowManualShowGlyphs; } | |
| 40 | |
| 41 virtual bool IsValid(); | |
| 42 | |
| 43 gfxFloat GetAdjustedSize() { | |
| 44 return mAdjustedSize; | |
| 45 } | |
| 46 | |
| 47 IDWriteFontFace *GetFontFace(); | |
| 48 | |
| 49 /* override Measure to add padding for antialiasing */ | |
| 50 virtual RunMetrics Measure(gfxTextRun *aTextRun, | |
| 51 uint32_t aStart, uint32_t aEnd, | |
| 52 BoundingBoxType aBoundingBoxType, | |
| 53 gfxContext *aContextForTightBoundingBox, | |
| 54 Spacing *aSpacing); | |
| 55 | |
| 56 virtual bool ProvidesGlyphWidths(); | |
| 57 | |
| 58 virtual int32_t GetGlyphWidth(gfxContext *aCtx, uint16_t aGID); | |
| 59 | |
| 60 virtual mozilla::TemporaryRef<mozilla::gfx::GlyphRenderingOptions> GetGlyphRenderingOptions(); | |
| 61 | |
| 62 virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf, | |
| 63 FontCacheSizes* aSizes) const; | |
| 64 virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf, | |
| 65 FontCacheSizes* aSizes) const; | |
| 66 | |
| 67 virtual FontType GetType() const { return FONT_TYPE_DWRITE; } | |
| 68 | |
| 69 virtual mozilla::TemporaryRef<mozilla::gfx::ScaledFont> GetScaledFont(mozilla::gfx::DrawTarget *aTarget); | |
| 70 | |
| 71 virtual cairo_scaled_font_t *GetCairoScaledFont(); | |
| 72 | |
| 73 protected: | |
| 74 friend class gfxDWriteShaper; | |
| 75 | |
| 76 virtual void CreatePlatformShaper(); | |
| 77 | |
| 78 bool GetFakeMetricsForArialBlack(DWRITE_FONT_METRICS *aFontMetrics); | |
| 79 | |
| 80 void ComputeMetrics(AntialiasOption anAAOption); | |
| 81 | |
| 82 bool HasBitmapStrikeForSize(uint32_t aSize); | |
| 83 | |
| 84 cairo_font_face_t *CairoFontFace(); | |
| 85 | |
| 86 gfxFloat MeasureGlyphWidth(uint16_t aGlyph); | |
| 87 | |
| 88 DWRITE_MEASURING_MODE GetMeasuringMode(); | |
| 89 bool GetForceGDIClassic(); | |
| 90 | |
| 91 nsRefPtr<IDWriteFontFace> mFontFace; | |
| 92 cairo_font_face_t *mCairoFontFace; | |
| 93 | |
| 94 gfxFont::Metrics *mMetrics; | |
| 95 | |
| 96 // cache of glyph widths in 16.16 fixed-point pixels | |
| 97 nsAutoPtr<nsDataHashtable<nsUint32HashKey,int32_t> > mGlyphWidths; | |
| 98 | |
| 99 bool mNeedsOblique; | |
| 100 bool mNeedsBold; | |
| 101 bool mUseSubpixelPositions; | |
| 102 bool mAllowManualShowGlyphs; | |
| 103 bool mAzureScaledFontIsCairo; | |
| 104 }; | |
| 105 | |
| 106 #endif |
