#ifndef EDGEPROVIDER_H_ #define EDGEPROVIDER_H_ #include "Edge.h" class EdgeProvider { public: virtual ~EdgeProvider() {} virtual const Edge* getEdge(size_t id) const = 0; virtual size_t getEdgeCount() const = 0; virtual void moveEdge(size_t id, float x, float y) {} virtual void rotateEdge(size_t id, float a) {} }; #endif /*EDGEPROVIDER_H_*/