SVGAnimated Value, C++ (gcc)

SVGAnimated Value

#ifndef __SVGANIMATED_H
#define __SVGANIMATED_H

//sammycageagle@gmail.com
//Nwutobo Samuel Ugochukwu
//24-August-2019

#include <vector>
#include <iostream>

enum ValueIndex
{
   EBaseValue,
   EAnimatedValue,
   ECurrentValue,
};

template<class T>
class SVGAnimated
{
public:
   SVGAnimated();

T& operator[](ValueIndex index);
   const T& operator[](ValueIndex index) const;

void Reset();

private:
   std::vector<T> m_values;
};

template<class T>
SVGAnimated<T>::SVGAnimated()
{
   m_values.push_back(T());
}

template<class T>
void SVGAnimated<T>::Reset()
{
   if(m_values.size() == 2)
      m_values.erase(m_values.begin() + 1);
}

template<class T>
T& SVGAnimated<T>::operator[](ValueIndex index)
{
   if(index == EAnimatedValue)
   {
      if(m_values.size() != 2)
         m_values.push_back(T());
      return m_values[1];
   }
   else if(index == ECurrentValue)
   {
      if(m_values.size() != 2)
         return m_values[0];
      return m_values[1];
   }

return m_values[0]; //EBaseValue
}

template<class T>
const T& SVGAnimated<T>::operator[](ValueIndex index) const
{
   if(index == EAnimatedValue)
   {
      if(m_values.size() != 2)
         m_values.push_back(T());
      return m_values[1];
   }
   else if(index == ECurrentValue)
   {
      if(m_values.size() != 2)
         return m_values[0];
      return m_values[1];
   }

return m_values[0]; //EBaseValue
}

int main()
{
SVGAnimated<int> i;

i[EBaseValue] = 1;
i[EAnimatedValue] = 2;
i[EAnimatedValue] = 2;
i[EAnimatedValue] = 2;
i[EAnimatedValue] = 2;
i[EAnimatedValue] = 2;
i[EAnimatedValue] = 4;
std::cout << i[EBaseValue];
std::cout << i[EAnimatedValue];
std::cout << i[ECurrentValue];
i.Reset();
std::cout << i[ECurrentValue];
}

#endif //__SVGANIMATED_H


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