font_asset_provider.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_TXT_SRC_TXT_FONT_ASSET_PROVIDER_H_
#define FLUTTER_TXT_SRC_TXT_FONT_ASSET_PROVIDER_H_
 
#include <string>
 
#include "third_party/skia/include/core/SkFontMgr.h"
 
namespace txt {
 
class FontAssetProvider {
 public:
  virtual ~FontAssetProvider() = default;
 
  virtual size_t GetFamilyCount() const = 0;
  virtual std::string GetFamilyName(int index) const = 0;
  virtual sk_sp<SkFontStyleSet> MatchFamily(const std::string& family_name) = 0;
 
 protected:
  static std::string CanonicalFamilyName(std::string family_name);
};
 
}  // namespace txt
 
#endif  // FLUTTER_TXT_SRC_TXT_FONT_ASSET_PROVIDER_H_