UnscaledFontDWrite.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_UNSCALEDFONTDWRITE_H_

#define MOZILLA_GFX_UNSCALEDFONTDWRITE_H_

#include <dwrite.h>

#include <vector>

#include "2D.h"

namespace mozilla {

namespace gfx {

class ScaledFontDWrite;

class UnscaledFontDWrite final : public UnscaledFont {

 public:

  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(UnscaledFontDWrite, override)

  UnscaledFontDWrite(const RefPtr<IDWriteFontFace>& aFontFace,

                     const RefPtr<IDWriteFont>& aFont)

      : mFontFace(aFontFace), mFont(aFont) {}

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

  const RefPtr<IDWriteFontFace>& GetFontFace() const { return mFontFace; }

  const RefPtr<IDWriteFont>& GetFont() const { return mFont; }

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

  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;

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

  static already_AddRefed<UnscaledFont> CreateFromFontDescriptor(

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

 private:

  bool InitBold();

  RefPtr<IDWriteFontFace> mFontFace;

  RefPtr<IDWriteFontFace> mFontFaceBold;

  RefPtr<IDWriteFont> mFont;

  std::vector<WCHAR> mFontFileName;

};

}  // namespace gfx

}  // namespace mozilla

#endif /* MOZILLA_GFX_UNSCALEDFONTDWRITE_H_ */