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