зеркало из https://github.com/mozilla/gecko-dev.git
73 строки
2.2 KiB
C++
73 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 MOZILLA_GFX_SCALEDFONTBASE_H_
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#define MOZILLA_GFX_SCALEDFONTBASE_H_
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#include "2D.h"
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// Skia uses cairo_scaled_font_t as the internal font type in ScaledFont
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#if defined(USE_SKIA) || defined(USE_CAIRO)
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#define USE_CAIRO_SCALED_FONT
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#endif
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#ifdef USE_SKIA
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#include "skia/include/core/SkPath.h"
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#include "skia/include/core/SkTypeface.h"
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#endif
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#ifdef USE_CAIRO_SCALED_FONT
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#include "cairo.h"
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#endif
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namespace mozilla {
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namespace gfx {
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class ScaledFontBase : public ScaledFont
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{
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontBase)
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ScaledFontBase(const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize);
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virtual ~ScaledFontBase();
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virtual already_AddRefed<Path> GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget);
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virtual void CopyGlyphsToBuilder(const GlyphBuffer &aBuffer, PathBuilder *aBuilder, const Matrix *aTransformHint);
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virtual void GetGlyphDesignMetrics(const uint16_t* aGlyphIndices, uint32_t aNumGlyphs, GlyphMetrics* aGlyphMetrics);
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virtual Float GetSize() const { return mSize; }
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#ifdef USE_SKIA
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virtual SkTypeface* GetSkTypeface() { return mTypeface; }
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#endif
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// Not true, but required to instantiate a ScaledFontBase.
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virtual FontType GetType() const { return FontType::SKIA; }
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#ifdef USE_CAIRO_SCALED_FONT
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bool PopulateCairoScaledFont();
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virtual cairo_scaled_font_t* GetCairoScaledFont() { return mScaledFont; }
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virtual void SetCairoScaledFont(cairo_scaled_font_t* font);
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#endif
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protected:
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friend class DrawTargetSkia;
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#ifdef USE_SKIA
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SkTypeface* mTypeface;
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SkPath GetSkiaPathForGlyphs(const GlyphBuffer &aBuffer);
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#endif
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#ifdef USE_CAIRO_SCALED_FONT
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// Overridders should ensure the cairo_font_face_t has been addrefed.
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virtual cairo_font_face_t* GetCairoFontFace() { return nullptr; }
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cairo_scaled_font_t* mScaledFont;
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#endif
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Float mSize;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif /* MOZILLA_GFX_SCALEDFONTBASE_H_ */
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