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Transform.h

#ifndef TRANSFORM_H
#define TRANSFORM_H

#include "SpecificProperty.h"

class VShape;

template<class T> class VTransform : public VSpecificProperty<T> {
protected:

        VShape* ptshape;

        T m_CurrentValue;

        virtual void Do(T) = 0;

public:

        VTransform(VTransform<T>* p) : VSpecificProperty<T>(p)
        {
                m_CurrentValue = p->m_CurrentValue;
        }

        VTransform() { }
        virtual ~VTransform() {}

        virtual T Evaluate(int nFrame)
        {
                if (m_pControl != NULL)
                        return m_pControl->Evaluate(nFrame) + m_BaseValue;
                else
                        return m_BaseValue;
        }

        virtual T ApplyTransform( int nFrame ) {
                T value = Evaluate(nFrame); // get value that current frame should be
                value = value - m_CurrentValue; //difference that we need to account for

                Do(value);

                m_CurrentValue = m_CurrentValue + value;
                return m_CurrentValue;
        }



        void SetShape( VShape *ps ) {
                ptshape = ps;
        }

};


#endif

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