diff -r 000000000000 -r 6474c204b198 gfx/thebes/gfxMacFont.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gfx/thebes/gfxMacFont.h Wed Dec 31 06:09:35 2014 +0100 @@ -0,0 +1,83 @@ +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef GFX_MACFONT_H +#define GFX_MACFONT_H + +#include "mozilla/MemoryReporting.h" +#include "gfxFont.h" +#include "cairo.h" +#include + +class MacOSFontEntry; + +class gfxMacFont : public gfxFont +{ +public: + gfxMacFont(MacOSFontEntry *aFontEntry, const gfxFontStyle *aFontStyle, + bool aNeedsBold); + + virtual ~gfxMacFont(); + + CGFontRef GetCGFontRef() const { return mCGFont; } + + /* overrides for the pure virtual methods in gfxFont */ + virtual const gfxFont::Metrics& GetMetrics() { + return mMetrics; + } + + virtual uint32_t GetSpaceGlyph() { + return mSpaceGlyph; + } + + virtual bool SetupCairoFont(gfxContext *aContext); + + /* override Measure to add padding for antialiasing */ + virtual RunMetrics Measure(gfxTextRun *aTextRun, + uint32_t aStart, uint32_t aEnd, + BoundingBoxType aBoundingBoxType, + gfxContext *aContextForTightBoundingBox, + Spacing *aSpacing); + + virtual mozilla::TemporaryRef GetScaledFont(mozilla::gfx::DrawTarget *aTarget); + + virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf, + FontCacheSizes* aSizes) const; + virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf, + FontCacheSizes* aSizes) const; + + virtual FontType GetType() const { return FONT_TYPE_MAC; } + +protected: + virtual void CreatePlatformShaper(); + + // override to prefer CoreText shaping with fonts that depend on AAT + virtual bool ShapeText(gfxContext *aContext, + const char16_t *aText, + uint32_t aOffset, + uint32_t aLength, + int32_t aScript, + gfxShapedText *aShapedText, + bool aPreferPlatformShaping = false); + + void InitMetrics(); + void InitMetricsFromPlatform(); + + // Get width and glyph ID for a character; uses aConvFactor + // to convert font units as returned by CG to actual dimensions + gfxFloat GetCharWidth(CFDataRef aCmap, char16_t aUniChar, + uint32_t *aGlyphID, gfxFloat aConvFactor); + + // a weak reference to the CoreGraphics font: this is owned by the + // MacOSFontEntry, it is not retained or released by gfxMacFont + CGFontRef mCGFont; + + cairo_font_face_t *mFontFace; + + Metrics mMetrics; + uint32_t mSpaceGlyph; +}; + +#endif /* GFX_MACFONT_H */