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e897fba434
Backed out changeset e0be4f5390fb (bug1321031) Backed out changeset ba071046f8ab (bug1321031) Backed out changeset 7cb4242dc636 (bug1321031) Backed out changeset bc58e479eb58 (bug1321031) Backed out changeset c551913ae892 (bug1321031) Backed out changeset f4ae57d5358f (bug1321031) CLOSED TREE
113 lines
4.3 KiB
C++
113 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_MACFONT_H
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#define GFX_MACFONT_H
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#include "mozilla/MemoryReporting.h"
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#include "gfxFont.h"
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#include "cairo.h"
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#include <ApplicationServices/ApplicationServices.h>
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class MacOSFontEntry;
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class gfxMacFont : public gfxFont
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{
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public:
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gfxMacFont(MacOSFontEntry *aFontEntry, const gfxFontStyle *aFontStyle,
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bool aNeedsBold);
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virtual ~gfxMacFont();
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CGFontRef GetCGFontRef() const { return mCGFont; }
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/* overrides for the pure virtual methods in gfxFont */
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virtual uint32_t GetSpaceGlyph() override {
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return mSpaceGlyph;
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}
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virtual bool SetupCairoFont(DrawTarget* aDrawTarget) override;
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/* override Measure to add padding for antialiasing */
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virtual RunMetrics Measure(const gfxTextRun *aTextRun,
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uint32_t aStart, uint32_t aEnd,
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BoundingBoxType aBoundingBoxType,
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DrawTarget *aDrawTargetForTightBoundingBox,
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Spacing *aSpacing,
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uint16_t aOrientation) override;
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// We need to provide hinted (non-linear) glyph widths if using a font
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// with embedded color bitmaps (Apple Color Emoji), as Core Text renders
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// the glyphs with non-linear scaling at small pixel sizes.
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virtual bool ProvidesGlyphWidths() const override {
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return mVariationFont ||
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mFontEntry->HasFontTable(TRUETYPE_TAG('s','b','i','x'));
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}
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virtual int32_t GetGlyphWidth(DrawTarget& aDrawTarget,
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uint16_t aGID) override;
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virtual already_AddRefed<mozilla::gfx::ScaledFont>
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GetScaledFont(mozilla::gfx::DrawTarget *aTarget) override;
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virtual already_AddRefed<mozilla::gfx::GlyphRenderingOptions>
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GetGlyphRenderingOptions(const TextRunDrawParams* aRunParams = nullptr) override;
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virtual void AddSizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontCacheSizes* aSizes) const override;
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virtual void AddSizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf,
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FontCacheSizes* aSizes) const override;
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virtual FontType GetType() const override { return FONT_TYPE_MAC; }
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// Helper to create a CTFont from a CGFont, with optional font descriptor
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// (for features), and copying any variations that were set on the CGFont.
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// This is public so that gfxCoreTextShaper can also use it.
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static CTFontRef
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CreateCTFontFromCGFontWithVariations(CGFontRef aCGFont,
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CGFloat aSize,
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CTFontDescriptorRef aFontDesc = nullptr);
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protected:
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virtual const Metrics& GetHorizontalMetrics() override {
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return mMetrics;
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}
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// override to prefer CoreText shaping with fonts that depend on AAT
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virtual bool ShapeText(DrawTarget *aDrawTarget,
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const char16_t *aText,
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uint32_t aOffset,
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uint32_t aLength,
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Script aScript,
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bool aVertical,
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gfxShapedText *aShapedText) override;
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void InitMetrics();
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void InitMetricsFromPlatform();
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// Get width and glyph ID for a character; uses aConvFactor
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// to convert font units as returned by CG to actual dimensions
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gfxFloat GetCharWidth(CFDataRef aCmap, char16_t aUniChar,
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uint32_t *aGlyphID, gfxFloat aConvFactor);
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// a strong reference to the CoreGraphics font
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CGFontRef mCGFont;
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// a Core Text font reference, created only if we're using CT to measure
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// glyph widths; otherwise null.
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CTFontRef mCTFont;
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cairo_font_face_t *mFontFace;
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mozilla::UniquePtr<gfxFontShaper> mCoreTextShaper;
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Metrics mMetrics;
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uint32_t mSpaceGlyph;
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bool mVariationFont; // true if variations are in effect
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};
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#endif /* GFX_MACFONT_H */
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