#pragma once
#include "IDisplayImpl.h"
class Display
{
public:
 virtual ~Display() {}
 Display(IDisplayImpl *impl) : m_pImpl(impl) {}
 virtual void open()
 {
 m_pImpl->rawOpen();
 }
 virtual void print()
 {
 m_pImpl->rawPrint();
 }
 virtual void close()
 {
 m_pImpl->rawClose();
 }
 void display()
 {
 open();
 print();
 close();
 }

private:
 IDisplayImpl *m_pImpl;
};