complex_rse_contents.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_ENTITY_CONTENTS_COMPLEX_RSE_CONTENTS_H_
#define FLUTTER_IMPELLER_ENTITY_CONTENTS_COMPLEX_RSE_CONTENTS_H_
 
#include <memory>
#include <optional>
 
#include "flutter/impeller/entity/contents/color_source_contents.h"
#include "flutter/impeller/entity/contents/contents.h"
#include "impeller/entity/geometry/geometry.h"
#include "impeller/geometry/color.h"
#include "impeller/geometry/rect.h"
#include "impeller/geometry/round_superellipse_param.h"
#include "impeller/geometry/stroke_parameters.h"
 
namespace impeller {
 
/// A Contents class that renders asymmetric rounded superellipses using SDFs.
///
/// Separated from 'UberSDFContents' to reduce uniform bloat
class ComplexRoundedSuperellipseContents : public ColorSourceContents {
 public:
  static std::unique_ptr<ComplexRoundedSuperellipseContents> Make(
      Color color,
      const Rect& bounds,
      const RoundSuperellipseParam& round_superellipse_params,
      std::optional<StrokeParameters> stroke);
 
  bool Render(const ContentContext& renderer,
              const Entity& entity,
              RenderPass& pass) const override;
 
  std::optional<Rect> GetCoverage(const Entity& entity) const override;
 
  const Geometry* GetGeometry() const override;
 
 private:
  explicit ComplexRoundedSuperellipseContents(
      Color color,
      const Rect& bounds,
      const RoundSuperellipseParam& round_superellipse_params,
      std::optional<StrokeParameters> stroke);
 
  Color color_;
  Rect bounds_;
  RoundSuperellipseParam round_superellipse_params_;
  std::optional<StrokeParameters> stroke_;
  std::unique_ptr<Geometry> geometry_;
 
  ComplexRoundedSuperellipseContents(
      const ComplexRoundedSuperellipseContents&) = delete;
 
  ComplexRoundedSuperellipseContents& operator=(
      const ComplexRoundedSuperellipseContents&) = delete;
};
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_ENTITY_CONTENTS_COMPLEX_RSE_CONTENTS_H_