typeface_skia.h

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_IMPELLER_TYPOGRAPHER_BACKENDS_SKIA_TYPEFACE_SKIA_H_
#define FLUTTER_IMPELLER_TYPOGRAPHER_BACKENDS_SKIA_TYPEFACE_SKIA_H_
 
#include "flutter/fml/macros.h"
#include "impeller/base/backend_cast.h"
#include "impeller/typographer/typeface.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "third_party/skia/include/core/SkTypeface.h"
 
namespace impeller {
 
class TypefaceSkia final : public Typeface,
                           public BackendCast<TypefaceSkia, Typeface> {
 public:
  explicit TypefaceSkia(sk_sp<SkTypeface> typeface);
 
  ~TypefaceSkia() override;
 
  // |Typeface|
  bool IsValid() const override;
 
  // |Comparable<Typeface>|
  std::size_t GetHash() const override;
 
  // |Comparable<Typeface>|
  bool IsEqual(const Typeface& other) const override;
 
  const sk_sp<SkTypeface>& GetSkiaTypeface() const;
 
 private:
  sk_sp<SkTypeface> typeface_;
 
  TypefaceSkia(const TypefaceSkia&) = delete;
 
  TypefaceSkia& operator=(const TypefaceSkia&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_TYPOGRAPHER_BACKENDS_SKIA_TYPEFACE_SKIA_H_