UnscaledFontFreeType.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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_UNSCALEDFONTFREETYPE_H_

#define MOZILLA_GFX_UNSCALEDFONTFREETYPE_H_

#include <cairo-ft.h>

#include "2D.h"

namespace mozilla {

namespace gfx {

class ScaledFontFreeType;

class ScaledFontFontconfig;

class UnscaledFontFreeType : public UnscaledFont {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(UnscaledFontFreeType, override)

  explicit UnscaledFontFreeType(const RefPtr<SharedFTFace>& aFace)

      : mFace(aFace), mIndex(0) {}

  explicit UnscaledFontFreeType(const char* aFile, uint32_t aIndex = 0,

                                RefPtr<SharedFTFace> aFace = nullptr)

      : mFace(std::move(aFace)), mFile(aFile), mIndex(aIndex) {}

  explicit UnscaledFontFreeType(std::string&& aFile, uint32_t aIndex = 0,

                                RefPtr<SharedFTFace> aFace = nullptr)

      : mFace(std::move(aFace)), mFile(std::move(aFile)), mIndex(aIndex) {}

  FontType GetType() const override { return FontType::FREETYPE; }

  const RefPtr<SharedFTFace>& GetFace() const { return mFace; }

  const std::string& GetFile() const { return mFile; }

  uint32_t GetIndex() const { return mIndex; }

  bool GetFontFileData(FontFileDataOutput aDataCallback, void* aBaton) override;

  bool GetFontDescriptor(FontDescriptorOutput aCb, void* aBaton) override;

  RefPtr<SharedFTFace> InitFace();

#ifdef MOZ_WIDGET_ANDROID

  static already_AddRefed<UnscaledFont> CreateFromFontDescriptor(

      const uint8_t* aData, uint32_t aDataLength, uint32_t aIndex);

  already_AddRefed<ScaledFont> CreateScaledFont(

      Float aGlyphSize, const uint8_t* aInstanceData,

      uint32_t aInstanceDataLength, const FontVariation* aVariations,

      uint32_t aNumVariations) override;

  already_AddRefed<ScaledFont> CreateScaledFontFromWRFont(

      Float aGlyphSize, const wr::FontInstanceOptions* aOptions,

      const wr::FontInstancePlatformOptions* aPlatformOptions,

      const FontVariation* aVariations, uint32_t aNumVariations) override;

#endif

 protected:

  RefPtr<SharedFTFace> mFace;

  std::string mFile;

  uint32_t mIndex;

  friend class ScaledFontFreeType;

  friend class ScaledFontFontconfig;

  static void GetVariationSettingsFromFace(

      std::vector<FontVariation>* aVariations, FT_Face aFace);

  static void ApplyVariationsToFace(const FontVariation* aVariations,

                                    uint32_t aNumVariations, FT_Face aFace);

};

#ifdef MOZ_WIDGET_GTK

class UnscaledFontFontconfig : public UnscaledFontFreeType {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(UnscaledFontFontconfig, override)

  explicit UnscaledFontFontconfig(const RefPtr<SharedFTFace>& aFace)

      : UnscaledFontFreeType(aFace) {}

  explicit UnscaledFontFontconfig(const char* aFile, uint32_t aIndex = 0,

                                  RefPtr<SharedFTFace> aFace = nullptr)

      : UnscaledFontFreeType(aFile, aIndex, std::move(aFace)) {}

  explicit UnscaledFontFontconfig(std::string&& aFile, uint32_t aIndex = 0,

                                  RefPtr<SharedFTFace> aFace = nullptr)

      : UnscaledFontFreeType(std::move(aFile), aIndex, std::move(aFace)) {}

  FontType GetType() const override { return FontType::FONTCONFIG; }

  static already_AddRefed<UnscaledFont> CreateFromFontDescriptor(

      const uint8_t* aData, uint32_t aDataLength, uint32_t aIndex);

  already_AddRefed<ScaledFont> CreateScaledFont(

      Float aGlyphSize, const uint8_t* aInstanceData,

      uint32_t aInstanceDataLength, const FontVariation* aVariations,

      uint32_t aNumVariations) override;

  already_AddRefed<ScaledFont> CreateScaledFontFromWRFont(

      Float aGlyphSize, const wr::FontInstanceOptions* aOptions,

      const wr::FontInstancePlatformOptions* aPlatformOptions,

      const FontVariation* aVariations, uint32_t aNumVariations) override;

};

extern bool FcPatternAllowsBitmaps(FcPattern* aPattern, bool aAntialias,

                                   bool aHinting);

#endif

}  // namespace gfx

}  // namespace mozilla

#endif /* MOZILLA_GFX_UNSCALEDFONTFREETYPE_H_ */