The Tor Browser: gfx/thebes/gfxMacFont.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     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/. */

     6 #ifndef GFX_MACFONT_H

     7 #define GFX_MACFONT_H

     9 #include "mozilla/MemoryReporting.h"

    10 #include "gfxFont.h"

    11 #include "cairo.h"

    12 #include <ApplicationServices/ApplicationServices.h>

    14 class MacOSFontEntry;

    16 class gfxMacFont : public gfxFont

    17 {

    18 public:

    19     gfxMacFont(MacOSFontEntry *aFontEntry, const gfxFontStyle *aFontStyle,

    20                bool aNeedsBold);

    22     virtual ~gfxMacFont();

    24     CGFontRef GetCGFontRef() const { return mCGFont; }

    26     /* overrides for the pure virtual methods in gfxFont */

    27     virtual const gfxFont::Metrics& GetMetrics() {

    28         return mMetrics;

    29     }

    31     virtual uint32_t GetSpaceGlyph() {

    32         return mSpaceGlyph;

    33     }

    35     virtual bool SetupCairoFont(gfxContext *aContext);

    37     /* override Measure to add padding for antialiasing */

    38     virtual RunMetrics Measure(gfxTextRun *aTextRun,

    39                                uint32_t aStart, uint32_t aEnd,

    40                                BoundingBoxType aBoundingBoxType,

    41                                gfxContext *aContextForTightBoundingBox,

    42                                Spacing *aSpacing);

    44     virtual mozilla::TemporaryRef<mozilla::gfx::ScaledFont> GetScaledFont(mozilla::gfx::DrawTarget *aTarget);

    46     virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,

    47                                         FontCacheSizes* aSizes) const;

    48     virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,

    49                                         FontCacheSizes* aSizes) const;

    51     virtual FontType GetType() const { return FONT_TYPE_MAC; }

    53 protected:

    54     virtual void CreatePlatformShaper();

    56     // override to prefer CoreText shaping with fonts that depend on AAT

    57     virtual bool ShapeText(gfxContext      *aContext,

    58                            const char16_t *aText,

    59                            uint32_t         aOffset,

    60                            uint32_t         aLength,

    61                            int32_t          aScript,

    62                            gfxShapedText   *aShapedText,

    63                            bool             aPreferPlatformShaping = false);

    65     void InitMetrics();

    66     void InitMetricsFromPlatform();

    68     // Get width and glyph ID for a character; uses aConvFactor

    69     // to convert font units as returned by CG to actual dimensions

    70     gfxFloat GetCharWidth(CFDataRef aCmap, char16_t aUniChar,

    71                           uint32_t *aGlyphID, gfxFloat aConvFactor);

    73     // a weak reference to the CoreGraphics font: this is owned by the

    74     // MacOSFontEntry, it is not retained or released by gfxMacFont

    75     CGFontRef             mCGFont;

    77     cairo_font_face_t    *mFontFace;

    79     Metrics               mMetrics;

    80     uint32_t              mSpaceGlyph;

    81 };

    83 #endif /* GFX_MACFONT_H */

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