lpart.h

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#ifndef LPART_H
#define LPART_H
 
#include "bun/bun.h"
#include "memory"
#include <string>
#include <sstream>
 
class lpart {
  public:
    virtual std::unique_ptr<lpart> clone () const = 0;
    virtual void apply (bun &b) = 0;
    virtual void intersect (bun &b) = 0;
    virtual bool is_transfer () = 0;
    virtual bool is_renderable () = 0;
 
  private:
    virtual std::string print_str () const = 0;
 
  friend std::ostream& operator<< (std::ostream &out, const lpart &lp) {
    out << lp.print_str();
    return out;
  };
};
 
#endif // LPART_H