Bridge（桥接）-对象结构型模式

#include <memory>

class  AbstactionImpl;

class Abstration
{
public:
    void virtual Operaion()=0;
    void virtual SetImpl(std::shared_ptr<AbstactionImpl>& pImpl)=0;
protected:

    std::shared_ptr<AbstactionImpl> m_pImpl;

};

class RedefinedAbstration : public Abstration
{
public:
    void Operaion();
    void SetImpl(std::shared_ptr<AbstactionImpl>& pImpl);
};

class AbstactionImpl
{
public:
    void virtual OperationImpl()=0;
};


class ConcreteImplentorA : public AbstactionImpl
{
public:
    void  OperationImpl();
};

class ConcreteImplentorB : public AbstactionImpl
{
public:
    void  OperationImpl();
};

#include "Abstration.h"
#include "Implentor.h"

void RedefinedAbstration::Operaion()
{
    m_pImpl->OperationImpl();
}

void RedefinedAbstration::SetImpl(std::shared_ptr<AbstactionImpl>& pImpl)
{
    m_pImpl = pImpl;
}

#include <iostream>
#include "Implentor.h"


void ConcreteImplentorA::OperationImpl()
{
    std::cout<<"ConcreteImplenorA Exectued" <<std::endl;
}

void ConcreteImplentorB::OperationImpl()
{
    std::cout<<"ConcreteImplentorB Exectued"<<std::endl;
}

#include <memory>
#include "Abstration.h"
#include "Implentor.h"

int main()
{

    std::shared_ptr<AbstactionImpl> pConcreteImplA(new ConcreteImplentorA);
    std::shared_ptr<AbstactionImpl> pConcreteImplB(new ConcreteImplentorB);

    std::shared_ptr<RedefinedAbstration> pRedefinedAbstration(new RedefinedAbstration);
    pRedefinedAbstration->SetImpl(pConcreteImplA);
    pRedefinedAbstration->Operaion();

    pRedefinedAbstration->SetImpl(pConcreteImplB);
    pRedefinedAbstration->Operaion();

    while(1);

}