QtDesignPatterns/visitorpattern/son.h

#include "father.h"
#include <vector>
#include <string>

class Keyboard : public ComputerPart
{
public:
    void accept(ComputerPartVisitor *computerPartVisitor)
    {
        computerPartVisitor->visit(this);
    }
    string getString()
    {
        return "Displaying Keyboard";
    }
};

class Monitor: public ComputerPart
{
public:
    void accept(ComputerPartVisitor *computerPartVisitor)
    {
        computerPartVisitor->visit(this);
    }
    string getString()
    {
        return "Displaying Monitor";
    }
};

class Mouse: public ComputerPart
{
public:
    void accept(ComputerPartVisitor *computerPartVisitor)
    {
        computerPartVisitor->visit(this);
    }
    string getString()
    {
        return "Displaying Mouse";
    }
};

class Computer: public ComputerPart
{
public:
    Computer()
    {
        ComputerPart *keyboard = new Keyboard();
        ComputerPart *monitor = new Monitor();
        ComputerPart *mouse = new Mouse();
        vector.push_back(keyboard);
        vector.push_back(monitor);
        vector.push_back(mouse);
    }
    void accept(ComputerPartVisitor *computerPartVisitor)
    {
        for(size_t i = 0; i < vector.size(); i++)
        {
            vector.at(i)->accept(computerPartVisitor);
        }
        computerPartVisitor->visit(this);
    }
    string getString()
    {
        return "Displaying Computer";
    }

private:
    std::vector<ComputerPart *> vector;
};

class ComputerPartDisplayVisitor: public ComputerPartVisitor
{
public:
    void visit(Computer *computer)
    {
        cout << computer->getString() << endl;
    }
    void visit(Mouse *mouse)
    {
        cout << mouse->getString() << endl;
    }
    void visit(Keyboard *keyboard)
    {
        cout << keyboard->getString() << endl;
    }
    void visit(Monitor *monitor)
    {
        cout << monitor->getString() << endl;
    }
};