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route_renderer.hpp « drape_frontend - github.com/mapsme/omim.git - Unnamed repository; edit this file 'description' to name the repository.
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#pragma once

#include "drape_frontend/route_builder.hpp"

#include "drape/gpu_program_manager.hpp"
#include "drape/pointers.hpp"

#include "geometry/screenbase.hpp"

namespace df
{

class RouteRenderer final
{
public:
  using TCacheRouteArrowsCallback = function<void(int, vector<ArrowBorders> const &)>;

  RouteRenderer();

  void UpdateRoute(ScreenBase const & screen, TCacheRouteArrowsCallback const & callback);

  void RenderRoute(ScreenBase const & screen, ref_ptr<dp::GpuProgramManager> mng,
                   dp::UniformValuesStorage const & commonUniforms);

  void RenderRouteSigns(ScreenBase const & screen, ref_ptr<dp::GpuProgramManager> mng,
                        dp::UniformValuesStorage const & commonUniforms);

  void SetRouteData(drape_ptr<RouteData> && routeData, ref_ptr<dp::GpuProgramManager> mng);
  drape_ptr<RouteData> const & GetRouteData() const;

  void SetRouteSign(drape_ptr<RouteSignData> && routeSignData, ref_ptr<dp::GpuProgramManager> mng);
  drape_ptr<RouteSignData> const & GetStartPoint() const;
  drape_ptr<RouteSignData> const & GetFinishPoint() const;

  void SetRouteArrows(drape_ptr<RouteArrowsData> && routeArrowsData, ref_ptr<dp::GpuProgramManager> mng);

  void Clear();
  void ClearGLDependentResources();

  void UpdateDistanceFromBegin(double distanceFromBegin);

private:
  void InterpolateByZoom(ScreenBase const & screen, float & halfWidth, float & alpha, double & zoom) const;
  void RenderRouteSign(drape_ptr<RouteSignData> const & sign, ScreenBase const & screen,
                       ref_ptr<dp::GpuProgramManager> mng, dp::UniformValuesStorage const & commonUniforms);

  double m_distanceFromBegin;
  drape_ptr<RouteData> m_routeData;

  vector<ArrowBorders> m_arrowBorders;
  drape_ptr<RouteArrowsData> m_routeArrows;

  drape_ptr<RouteSignData> m_startRouteSign;
  drape_ptr<RouteSignData> m_finishRouteSign;

  float m_currentHalfWidth = 0.0f;
  float m_currentAlpha = 0.0f;
};

} // namespace df