СПРИНТ № 5 | Распределение кода по файлам | Урок 8: Шаблоны в многофайловых проектах

accountant.h

#pragma once
#include "wall.h"
#include "square_calculation.h"

class Accountant {
public:
    template <class BuildingObject>
    double CalcPaintNeeded(const BuildingObject& building_object) const;
    template <class BuildingObject>
    double CalcBricksNeeded(const BuildingObject& building_object) const;
};

template <class BuildingObject>
double Accountant::CalcPaintNeeded(const BuildingObject& building_object) const {
    std::pair<double, double> sizes = building_object.GetSizes();
    return CalcSquare(sizes.first, sizes.second) * 0.4;
}

template <class BuildingObject>
double Accountant::CalcBricksNeeded(const BuildingObject& building_object) const {
    std::pair<double, double> sizes = building_object.GetSizes();
    return CalcSquare(sizes.first, sizes.second) * 5;
}
***************************************************************************************************************************************

builder.h

#pragma once
#include "square_calculation.h"

class Builder {
public:
    void HoldDoor() const {
        // Просто держит дверь 100 условных секунд
        int i = 100;
        while (0 != i) {
            i--;
        }
    }
};
***************************************************************************************************************************************

carpanter.cpp

#include "carpenter.h"

#include "square_calculation.h"

int Carpenter::CalcShelves(const Wall& wall) const {
    double height = wall.GetHeight();
    double width = wall.GetWidth();
    return CalcSquare(width, height) / 2;
}

void Carpenter::InstallDoor(Wall& wall, const Builder& builder) const {
    // Hold the door, builder! Hold the door!
    builder.HoldDoor();
    wall.SetDoorInstalled();
}
***************************************************************************************************************************************

carpanter.h

#pragma once
#include "builder.h"
#include "wall.h"

class Carpenter {
public:
    int CalcShelves(const Wall& wall) const;
    void InstallDoor(Wall& wall, const Builder& builder) const;
};

***************************************************************************************************************************************

ceiling.cpp

#include "ceiling.h"

Ceiling::Ceiling(double length, double width)
    : length_(length)
    , width_(width) {
}

std::pair<double, double> Ceiling::GetSizes() const {
    return {length_, width_};
}

***************************************************************************************************************************************

ceiling.h

#pragma once
#include <utility>

class Ceiling {
public:
    Ceiling(double length, double width);
    std::pair<double, double> GetSizes() const;

private:
    double length_;
    double width_;
};

***************************************************************************************************************************************

main.cpp

#include <iostream>

#include "accountant.h"
#include "ceiling.h"
#include "roof.h"

using namespace std;

int main() {
    Accountant ray;
    Wall wall(3.5, 2.45);
    Roof roof(5, 7);
    Ceiling ceiling(5, 7);

    cout << "Требуется кирпичей: "s
         << ray.CalcBricksNeeded<Wall>(wall) + ray.CalcBricksNeeded<Roof>(roof)
            + ray.CalcBricksNeeded<Ceiling>(ceiling)
         << endl;

    cout << "Требуется краски: "s
         << ray.CalcPaintNeeded<Wall>(wall) + ray.CalcPaintNeeded<Roof>(roof)
            + ray.CalcPaintNeeded<Ceiling>(ceiling)
         << endl;
    return 0;
}

***************************************************************************************************************************************

painter.h

#pragma once
#include "square_calculation.h"
#include "wall.h"

class Painter {
public:
    void Paint(Wall& wall, Wall::Color color) const {
        wall.SetColor(color);
    }
};

***************************************************************************************************************************************

roof.cpp

#include "roof.h"

Roof::Roof(double length, double width)
    : length_(length)
    , width_(width) {
}

std::pair<double, double> Roof::GetSizes() const {
    return {length_, width_};
}

***************************************************************************************************************************************

square_calculation.cpp

#include "square_calculation.h"

double CalcSquare(double width, double height) {
    return width * height;
}

***************************************************************************************************************************************

square_calculation.h

#pragma once
double CalcSquare(double width, double height);

***************************************************************************************************************************************

wall.cpp

#include "wall.h"

Wall::Wall(double width, double height)
    : width_(width)
    , height_(height)
    , color_(Color::WHITE)
    , is_door_installed_(false) {
}

double Wall::GetHeight() const {
    return height_;
}
double Wall::GetWidth() const {
    return width_;
}
std::pair<double, double> Wall::GetSizes() const {
    return {width_, height_};
}
void Wall::SetColor(Color color) {
    color_ = color;
}
Wall::Color Wall::GetColor() const {
    return color_;
}
bool Wall::IsDoorInstalled() const {
    return is_door_installed_;
}
void Wall::SetDoorInstalled() {
    is_door_installed_ = true;
}

***************************************************************************************************************************************

wall.h

#pragma once
#include <utility>

class Wall {
public:
    enum class Color { BLUE, GREEN, RED, WHITE, YELLOW };

    Wall(double width, double height);

    double GetHeight() const;
    double GetWidth() const;
    std::pair<double, double> GetSizes() const;
    void SetColor(Color color);
    Color GetColor() const;
    bool IsDoorInstalled() const;
    void SetDoorInstalled();

private:
    double width_;
    double height_;
    Color color_;
    bool is_door_installed_;
};