发布订阅者模式C++实现

#ifndef BOTTON_H

#define BOTTON_H

#include <string>

#include <vector>
class BottonListener;

class Botton

{

public:

Botton(const std::string & botton_name);

~Botton();

const std::string & GetName() const;

void AddBottonListener(BottonListener * botton_listener);

void RemoveBottonListenner(BottonListener * botton_listener);

void Run();

private:

typedef std::vector<BottonListener*>::iterator ITER;

std::string name_;

std::vector<BottonListener*> listener_vector_;

};

#endif/*BOTTON_H*/

#ifndef BOTTON_LISTENER_H

#define BOTTON_LISTENER_H
class Botton;

class BottonListener

{

public:

BottonListener();

virtual ~BottonListener();

virtual void BottonClick(Botton * botton) = 0;

};

#endif/*BOTTON_LISTENER_H*/

#ifndef MY_BOTTON_LISTENER_H

#define MY_BOTTON_LISTENER_H
#include "botton_listener.h"

#include "botton.h"
class MyBottonListener : public BottonListener

{

public:

MyBottonListener(int number);

~MyBottonListener();

void BottonClick(Botton * botton);

private:

int number_;

};
#endif/*MY_BOTTON_LISTENER_H*/

#include "botton_listener.h"

#include "botton.h"
Botton::Botton(const std::string &botton_name) : name_(botton_name)

{
}
Botton::~Botton()

{
}
const std::string & Botton::GetName() const

{

return this->name_;

}
void Botton::AddBottonListener(BottonListener * botton_listener)

{

this->listener_vector_.push_back(botton_listener);

}
void Botton::RemoveBottonListenner(BottonListener * botton_listener)

{

bool key = false;

ITER iter;

for(iter = listener_vector_.begin();iter != listener_vector_.end();iter++)

{

if(*iter == botton_listener )

{

key = true;

break;

}

}

if(key)

{

listener_vector_.erase(iter);

}

}
void Botton::Run()

{

for(ITER iter = listener_vector_.begin(); iter != listener_vector_.end(); iter++)

{

BottonListener * p_botton_listener = *iter;

p_botton_listener->BottonClick(this);

}

}

#include "botton_listener.h"
BottonListener::BottonListener()

{
}
BottonListener::~BottonListener()

{
}

#include <iostream>

#include "my_botton_listener.h"
MyBottonListener::MyBottonListener(int number) : number_(number)

{
}
MyBottonListener::~MyBottonListener()

{
}
void MyBottonListener::BottonClick(Botton *botton)

{

std::cout<<botton->GetName()<<" "<<number_<<std::endl;

}

#include "botton_listener.h"

#include "botton.h"

#include "my_botton_listener.h"
int main(int argc,char **argv)

{

Botton *botton = new Botton("Hello!");

BottonListener *botton_listener_1 = new MyBottonListener(1);

BottonListener *botton_listener_2 = new MyBottonListener(2);
botton->AddBottonListener(botton_listener_1);

botton->AddBottonListener(botton_listener_2);
botton->Run();

botton->RemoveBottonListenner(botton_listener_1);

botton->RemoveBottonListenner(botton_listener_2);

delete botton;

delete botton_listener_1;

delete botton_listener_2;
}

原文地址： http://blog.csdn.net/zhangbohtz/article/details/6941381