The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/thebes/gfxDWriteFonts.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,106 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#ifndef GFX_WINDOWSDWRITEFONTS_H
    1.10 +#define GFX_WINDOWSDWRITEFONTS_H
    1.11 +
    1.12 +#include "mozilla/MemoryReporting.h"
    1.13 +#include <dwrite.h>
    1.14 +
    1.15 +#include "gfxFont.h"
    1.16 +#include "gfxUserFontSet.h"
    1.17 +#include "cairo-win32.h"
    1.18 +
    1.19 +#include "nsDataHashtable.h"
    1.20 +#include "nsHashKeys.h"
    1.21 +
    1.22 +/**
    1.23 + * \brief Class representing a font face for a font entry.
    1.24 + */
    1.25 +class gfxDWriteFont : public gfxFont 
    1.26 +{
    1.27 +public:
    1.28 +    gfxDWriteFont(gfxFontEntry *aFontEntry,
    1.29 +                  const gfxFontStyle *aFontStyle,
    1.30 +                  bool aNeedsBold = false,
    1.31 +                  AntialiasOption = kAntialiasDefault);
    1.32 +    ~gfxDWriteFont();
    1.33 +
    1.34 +    virtual gfxFont* CopyWithAntialiasOption(AntialiasOption anAAOption);
    1.35 +
    1.36 +    virtual const gfxFont::Metrics& GetMetrics();
    1.37 +
    1.38 +    virtual uint32_t GetSpaceGlyph();
    1.39 +
    1.40 +    virtual bool SetupCairoFont(gfxContext *aContext);
    1.41 +
    1.42 +    virtual bool AllowSubpixelAA() { return mAllowManualShowGlyphs; }
    1.43 +
    1.44 +    virtual bool IsValid();
    1.45 +
    1.46 +    gfxFloat GetAdjustedSize() {
    1.47 +        return mAdjustedSize;
    1.48 +    }
    1.49 +
    1.50 +    IDWriteFontFace *GetFontFace();
    1.51 +
    1.52 +    /* override Measure to add padding for antialiasing */
    1.53 +    virtual RunMetrics Measure(gfxTextRun *aTextRun,
    1.54 +                               uint32_t aStart, uint32_t aEnd,
    1.55 +                               BoundingBoxType aBoundingBoxType,
    1.56 +                               gfxContext *aContextForTightBoundingBox,
    1.57 +                               Spacing *aSpacing);
    1.58 +
    1.59 +    virtual bool ProvidesGlyphWidths();
    1.60 +
    1.61 +    virtual int32_t GetGlyphWidth(gfxContext *aCtx, uint16_t aGID);
    1.62 +
    1.63 +    virtual mozilla::TemporaryRef<mozilla::gfx::GlyphRenderingOptions> GetGlyphRenderingOptions();
    1.64 +
    1.65 +    virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
    1.66 +                                        FontCacheSizes* aSizes) const;
    1.67 +    virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
    1.68 +                                        FontCacheSizes* aSizes) const;
    1.69 +
    1.70 +    virtual FontType GetType() const { return FONT_TYPE_DWRITE; }
    1.71 +
    1.72 +    virtual mozilla::TemporaryRef<mozilla::gfx::ScaledFont> GetScaledFont(mozilla::gfx::DrawTarget *aTarget);
    1.73 +
    1.74 +    virtual cairo_scaled_font_t *GetCairoScaledFont();
    1.75 +
    1.76 +protected:
    1.77 +    friend class gfxDWriteShaper;
    1.78 +
    1.79 +    virtual void CreatePlatformShaper();
    1.80 +
    1.81 +    bool GetFakeMetricsForArialBlack(DWRITE_FONT_METRICS *aFontMetrics);
    1.82 +
    1.83 +    void ComputeMetrics(AntialiasOption anAAOption);
    1.84 +
    1.85 +    bool HasBitmapStrikeForSize(uint32_t aSize);
    1.86 +
    1.87 +    cairo_font_face_t *CairoFontFace();
    1.88 +
    1.89 +    gfxFloat MeasureGlyphWidth(uint16_t aGlyph);
    1.90 +
    1.91 +    DWRITE_MEASURING_MODE GetMeasuringMode();
    1.92 +    bool GetForceGDIClassic();
    1.93 +
    1.94 +    nsRefPtr<IDWriteFontFace> mFontFace;
    1.95 +    cairo_font_face_t *mCairoFontFace;
    1.96 +
    1.97 +    gfxFont::Metrics          *mMetrics;
    1.98 +
    1.99 +    // cache of glyph widths in 16.16 fixed-point pixels
   1.100 +    nsAutoPtr<nsDataHashtable<nsUint32HashKey,int32_t> > mGlyphWidths;
   1.101 +
   1.102 +    bool mNeedsOblique;
   1.103 +    bool mNeedsBold;
   1.104 +    bool mUseSubpixelPositions;
   1.105 +    bool mAllowManualShowGlyphs;
   1.106 +    bool mAzureScaledFontIsCairo;
   1.107 +};
   1.108 +
   1.109 +#endif