#pragma once
#include "render_object.hpp"

namespace cru::ui::render {
// The measure logic for `CanvasRenderObject` is that you set a desired size by
// `SetDesiredSize` (not `SetPreferredSize`) and it will compare desired size
// and available size and use the smaller one (by `Min`).
class CanvasRenderObject : public RenderObject {
 public:
  CanvasRenderObject();

  CRU_DELETE_COPY(CanvasRenderObject)
  CRU_DELETE_MOVE(CanvasRenderObject)

  ~CanvasRenderObject();

 public:
  void Draw(platform::graph::IPainter* painter) override;

  RenderObject* HitTest(const Point& point) override;

  Size GetDesiredSize() const { return desired_size_; }

  // Set the desired size. This is the content size excluding padding and
  // margin.
  void SetDesiredSize(const Size& new_size) { desired_size_ = new_size; }

  IEvent<CanvasPaintEventArgs>* PaintEvent() { return &paint_event_; }

 protected:
  Size OnMeasureContent(const Size& available_size) override;
  void OnLayoutContent(const Rect& content_rect) override;

 private:
  Size desired_size_{};

  Event<CanvasPaintEventArgs> paint_event_;
};
}  // namespace cru::ui::render