PatchRandomAccessEnumerator.h

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#ifndef PATCHRANDOMACCESSENUMERATOR_H
#define PATCHRANDOMACCESSENUMERATOR_H

#include <map>

struct Triangle;
class Entity;
class EntitySet;
class PatchSequenceEnumerator;

class PatchRandomAccessEnumerator {
  public:
    static PatchRandomAccessEnumerator* create(Entity *forEntity);
    
    static PatchRandomAccessEnumerator* create(EntitySet *forEntitySet);

  private:
    template <class T>
    static PatchRandomAccessEnumerator* createGeneric(T *from) {
      PatchSequenceEnumerator *pe = from->createPatchSequenceEnumerator();
      PatchRandomAccessEnumerator *iter =
          new PatchRandomAccessEnumerator(pe);
      delete pe;
      return iter;
    }

  public:
    PatchRandomAccessEnumerator(PatchSequenceEnumerator *);

    int count();

    Triangle& operator[] (unsigned index);
    
  private:
    typedef std::map<unsigned, Triangle*> TContainer;
    TContainer container_;
};

#endif // PATCHRANDOMACCESSENUMERATOR_H

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