uniqueptrvectoriterator.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
namespace nap
{
    namespace utility
    {
        template<class ITERATORTYPE, class ELEMENTTYPE>
        class UniquePtrVectorIterator
        {
        public:
            UniquePtrVectorIterator(ITERATORTYPE pos) :
                mPos(pos)
            { }
 
            UniquePtrVectorIterator operator++() 
            {
                mPos++;
                return *this;
            }
 
            bool operator!=(const UniquePtrVectorIterator& rhs)
            {
                return rhs.mPos != mPos;
            }
 
            ELEMENTTYPE operator*() const
            {
                return mPos->get();
            }
 
            ITERATORTYPE mPos;
        };
 
 
        template<class VECTORTYPE, class ELEMENTTYPE>
        class UniquePtrVectorWrapper
        {
        public:
            UniquePtrVectorWrapper(VECTORTYPE& inVector) :
                mVector(&inVector)
            { }
 
            using Iterator = UniquePtrVectorIterator<typename VECTORTYPE::iterator, ELEMENTTYPE>;
 
            Iterator begin() { return Iterator(mVector->begin()); }
            Iterator end() { return Iterator(mVector->end()); }
 
        private:
            VECTORTYPE* mVector;
        };
 
 
        template<class VECTORTYPE, class ELEMENTTYPE>
        class UniquePtrConstVectorWrapper
        {
        public:
            UniquePtrConstVectorWrapper(const VECTORTYPE& inVector) :
                mVector(&inVector)
            { }
 
            using ConstIterator = UniquePtrVectorIterator<typename VECTORTYPE::const_iterator, const ELEMENTTYPE>;
 
            ConstIterator begin() const { return ConstIterator(mVector->begin()); }
            ConstIterator end() const { return ConstIterator(mVector->end()); }
 
        private:
            const VECTORTYPE* mVector;
        };
    }
}