gecko-dev/gfx/2d/ScaledFontMac.h

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * 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 MOZILLA_GFX_SCALEDFONTMAC_H_
#define MOZILLA_GFX_SCALEDFONTMAC_H_

#ifdef MOZ_WIDGET_COCOA
#include <ApplicationServices/ApplicationServices.h>
#else
#include <CoreGraphics/CoreGraphics.h>
#include <CoreText/CoreText.h>
#endif

#include "2D.h"

#include "ScaledFontBase.h"

namespace mozilla {
namespace gfx {

class GlyphRenderingOptionsCG : public GlyphRenderingOptions
{
public:
  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GlyphRenderingOptionsCG, override)

  explicit GlyphRenderingOptionsCG(const Color &aFontSmoothingBackgroundColor)
    : mFontSmoothingBackgroundColor(aFontSmoothingBackgroundColor)
  {}

  const Color &FontSmoothingBackgroundColor() const { return mFontSmoothingBackgroundColor; }

  virtual FontType GetType() const override { return FontType::MAC; }

private:
  Color mFontSmoothingBackgroundColor;
};

class ScaledFontMac : public ScaledFontBase
{
public:
  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontMac, override)
  ScaledFontMac(CGFontRef aFont, const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize, bool aOwnsFont = false);
  ~ScaledFontMac();

  FontType GetType() const override { return FontType::MAC; }
#ifdef USE_SKIA
  SkTypeface* GetSkTypeface() override;
#endif
  already_AddRefed<Path> GetPathForGlyphs(const GlyphBuffer &aBuffer, const DrawTarget *aTarget) override;

  bool GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton) override;

  bool GetWRFontInstanceOptions(Maybe<wr::FontInstanceOptions>* aOutOptions,
                                Maybe<wr::FontInstancePlatformOptions>* aOutPlatformOptions,
                                std::vector<FontVariation>* aOutVariations) override;

  bool CanSerialize() override { return true; }

#ifdef USE_CAIRO_SCALED_FONT
  cairo_font_face_t* GetCairoFontFace() override;
#endif

private:
  friend class DrawTargetSkia;
  CGFontRef mFont;
  CTFontRef mCTFont; // only created if CTFontDrawGlyphs is available, otherwise null

  typedef void (CTFontDrawGlyphsFuncT)(CTFontRef,
                                       const CGGlyph[], const CGPoint[],
                                       size_t, CGContextRef);

  static bool sSymbolLookupDone;

public:
  // function pointer for CTFontDrawGlyphs, if available;
  // initialized the first time a ScaledFontMac is created,
  // so it will be valid by the time DrawTargetCG wants to use it
  static CTFontDrawGlyphsFuncT* CTFontDrawGlyphsPtr;
};

} // namespace gfx
} // namespace mozilla

#endif /* MOZILLA_GFX_SCALEDFONTMAC_H_ */