gfx/2d/ScaledFontFreeType.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef MOZILLA_GFX_SCALEDFONTCAIRO_H_
   8 #define MOZILLA_GFX_SCALEDFONTCAIRO_H_
   9
  10 #include "ScaledFontBase.h"
  11
  12 #include <cairo-ft.h>
  13
  14 namespace mozilla {
  15 namespace gfx {
  16
  17 class UnscaledFontFreeType;
  18
  19 class ScaledFontFreeType : public ScaledFontBase {
  20  public:
  21   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(ScaledFontFreeType, override)
  22
  23   ScaledFontFreeType(RefPtr<SharedFTFace>&& aFace,
  24                      const RefPtr<UnscaledFont>& aUnscaledFont, Float aSize,
  25                      bool aApplySyntheticBold = false);
  26
  27   FontType GetType() const override { return FontType::FREETYPE; }
  28
  29   SkTypeface* CreateSkTypeface() override;
  30   void SetupSkFontDrawOptions(SkFont& aFont) override;
  31
  32   AntialiasMode GetDefaultAAMode() override { return AntialiasMode::GRAY; }
  33
  34   bool UseSubpixelPosition() const override;
  35
  36   bool CanSerialize() override { return true; }
  37
  38   bool MayUseBitmaps() override;
  39
  40   bool GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton) override;
  41
  42   bool GetWRFontInstanceOptions(
  43       Maybe<wr::FontInstanceOptions>* aOutOptions,
  44       Maybe<wr::FontInstancePlatformOptions>* aOutPlatformOptions,
  45       std::vector<FontVariation>* aOutVariations) override;
  46
  47   bool HasVariationSettings() override;
  48
  49  protected:
  50   cairo_font_face_t* CreateCairoFontFace(
  51       cairo_font_options_t* aFontOptions) override;
  52
  53  private:
  54   friend UnscaledFontFreeType;
  55
  56   RefPtr<SharedFTFace> mFace;
  57
  58   bool mApplySyntheticBold;
  59
  60   struct InstanceData {
  61     explicit InstanceData(ScaledFontFreeType* aScaledFont)
  62         : mApplySyntheticBold(aScaledFont->mApplySyntheticBold) {}
  63
  64     InstanceData(const wr::FontInstanceOptions* aOptions,
  65                  const wr::FontInstancePlatformOptions* aPlatformOptions);
  66
  67     bool mApplySyntheticBold;
  68   };
  69 };
  70
  71 }  // namespace gfx
  72 }  // namespace mozilla
  73
  74 #endif /* MOZILLA_GFX_SCALEDFONTCAIRO_H_ */