Repo created

libs/drape_frontend/line_shape.hpp

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+#pragma once
+
+#include "drape_frontend/map_shape.hpp"
+#include "drape_frontend/render_state_extension.hpp"
+#include "drape_frontend/shape_view_params.hpp"
+
+#include "drape/binding_info.hpp"
+
+#include "geometry/spline.hpp"
+
+#include <memory>
+
+namespace df
+{
+class LineShapeInfo
+{
+public:
+  virtual ~LineShapeInfo() = default;
+
+  virtual dp::BindingInfo const & GetBindingInfo() = 0;
+  virtual dp::RenderState GetState() = 0;
+
+  virtual ref_ptr<void> GetLineData() = 0;
+  virtual uint32_t GetLineSize() = 0;
+
+  //  virtual ref_ptr<void> GetJoinData() = 0;
+  //  virtual uint32_t GetJoinSize() = 0;
+
+  virtual dp::BindingInfo const & GetCapBindingInfo() = 0;
+  virtual dp::RenderState GetCapState() = 0;
+  virtual ref_ptr<void> GetCapData() = 0;
+  virtual uint32_t GetCapSize() = 0;
+};
+
+class LineShape : public MapShape
+{
+public:
+  LineShape(m2::SharedSpline const & spline, LineViewParams const & params);
+
+  void Prepare(ref_ptr<dp::TextureManager> textures) const override;
+  void Draw(ref_ptr<dp::GraphicsContext> context, ref_ptr<dp::Batcher> batcher,
+            ref_ptr<dp::TextureManager> textures) const override;
+
+private:
+  glsl::vec2 ToShapeVertex2(m2::PointD const & vertex) const
+  {
+    return glsl::ToVec2(ConvertToLocal(vertex, m_params.m_tileCenter, kShapeCoordScalar));
+  }
+
+  template <class FnT>
+  void ForEachSplineSection(FnT && fn) const;
+
+  template <typename TBuilder>
+  void Construct(TBuilder & builder) const;
+
+  bool CanBeSimplified(int & lineWidth) const;
+
+  LineViewParams m_params;
+  m2::SharedSpline m_spline;
+  mutable std::unique_ptr<LineShapeInfo> m_lineShapeInfo;
+  mutable bool m_isSimple;
+};
+}  // namespace df