typeface.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_TYPEFACE_H_
#define FLUTTER_IMPELLER_TYPOGRAPHER_TYPEFACE_H_
 
#include "impeller/base/comparable.h"
 
namespace impeller {
 
//------------------------------------------------------------------------------
/// @brief      A typeface, usually obtained from a font-file, on disk describes
///             the intrinsic properties of the font. Typefaces are rarely used
///             directly. Instead, font refer to typefaces along with any
///             modifications applied to its intrinsic properties.
///
class Typeface : public Comparable<Typeface> {
 public:
  Typeface();
 
  virtual ~Typeface();
 
  virtual bool IsValid() const = 0;
 
 private:
  Typeface(const Typeface&) = delete;
 
  Typeface& operator=(const Typeface&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_TYPOGRAPHER_TYPEFACE_H_