Bridge桥接模式3 C++理解的第三个版本 代码更加专业了
将定义与实现分开,分别放到.h和.cpp中;客户端调用也单独实现在一个cpp文件中。
Bridge的头文件uBridge.h
/********************************************************************
created: 2008/06/04
filename: uBridge.h
author: 张树坤
http://zhangsk.cn/
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purpose: Bridge模式的演示代码
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根据我的Delphi模式练习改写
桥接模式cpp实现3,更像cpp一些,声明与实现分开。
重构是根据http://www.cppblog.com/converse/archive/2006/07/23/10376.html进行的。
感谢李创同学通过他的代码我学会了如何将声明放到h中和将实现放到cpp中,^_^
*********************************************************************/
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#ifndef UBRIDGE_H
#define UBRIDGE_H
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class Implementor
{
public:
virtual void OperationImp() = 0;
virtual ~Implementor(){};
protected:
Implementor(){};
};
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class ConcreteImplementorA: public Implementor
{
public:
ConcreteImplementorA(){};
virtual ~ConcreteImplementorA(){};
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virtual void OperationImp();
};
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class ConcreteImplementorB: public Implementor
{
public:
ConcreteImplementorB(){};
virtual ~ConcreteImplementorB(){};
virtual void OperationImp();
};
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class Abstraction
{
protected:
Implementor *pImp;
Abstraction(){};
public:
virtual ~Abstraction(){};
virtual void Operation();
void SetImplementor(Implementor *p);
};
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class RefinedAbstraction: public Abstraction
{
public:
void Operation();
RefinedAbstraction(){};
virtual ~RefinedAbstraction(){};
};
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#endif
桥的实现uBridge.cpp
/********************************************************************
created: 2008/06/04
filename: uBridge.cpp
author: 张树坤
http://zhangsk.cn/
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
purpose: Bridge模式的演示代码
*********************************************************************/
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#include "uBridge.h"
#include <iostream>
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void ConcreteImplementorA::OperationImp()
{
std::cout << "ConcreteImplementorA.OperationImp\n";
}
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void ConcreteImplementorB::OperationImp()
{
std::cout << "ConcreteImplementorB.OperationImp\n";
}
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void Abstraction::Operation()
{
if (pImp)
pImp->OperationImp();
}
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void Abstraction::SetImplementor(Implementor *p)
{
pImp = p;
}
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void RefinedAbstraction::Operation()
{
Abstraction::Operation();//类似Delphi中的Inherited;
std::cout << "Do some other thing
\n";
}
客户端调用代码unit1.cpp
/********************************************************************
created: 2008/06/04
filename: unit1.cpp
author: 张树坤
http://zhangsk.cn/
![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
purpose: Bridge模式 客户端调用代码
*********************************************************************/
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#include "uBridge.h"
#include <stdlib.h>
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int main(int argc, char* argv[])
{
Abstraction* pAbstraction = new RefinedAbstraction();
Implementor *pImplementor;
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pImplementor = new ConcreteImplementorA();
pAbstraction->SetImplementor(pImplementor);
pAbstraction->Operation();
delete pImplementor;
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pImplementor = new ConcreteImplementorB();
pAbstraction->SetImplementor(pImplementor);
pAbstraction->Operation();
delete pImplementor;
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system("pause");
return 0;
}
Bridge的头文件uBridge.h
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桥的实现uBridge.cpp
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客户端调用代码unit1.cpp
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