Lesson_02/Task_1/Task_1.cpp - master - AirLexa/07

Lesson_02/Task_1/Task_1.cpp
88 строк2 KB
AirLexa
урок 2
24 июн 2026, 15:40
24 июн 2026, 15:4002f1193
#include <string>
#include <iostream>

class Text {
public:
    virtual void render(const std::string& data) const {
        std::cout << data;
    }
};


class DecoratedText : public Text {
public:
    explicit DecoratedText(Text* text) : text_(text) {}
    Text* text_;
};

class ItalicText : public DecoratedText {
public:
    explicit ItalicText(Text* text) : DecoratedText(text) {}
    void render(const std::string& data)  const {
        std::cout << "<i>";
        text_->render(data);
        std::cout << "</i>";
    }
};

class BoldText : public DecoratedText {
public:
    explicit BoldText(Text* text) : DecoratedText(text) {}
    void render(const std::string& data) const {
        std::cout << "<b>";
        text_->render(data);
        std::cout << "</b>";
    }
};

class Paragraph : public DecoratedText {
public:
    explicit Paragraph(Text* text) : DecoratedText(text) {}
    void render(const std::string& data) const {
        std::cout << "<p>";
        text_->render(data);
        std::cout << "</p>";
    }
};

class Reversed : public DecoratedText {
public:
    explicit Reversed(Text* text) : DecoratedText(text) {}
    void render(const std::string& data) const {
        text_->render(std::string(data.rbegin(), data.rend()));
    }
};

class Link : public DecoratedText {
public:
    explicit Link(Text* text) : DecoratedText(text) {}
    using Text::render;
    void render(const std::string& data, const std::string& data_2) const {
        std::cout << "<a href=";
        text_->render(data);
        std::cout << ">";
        text_->render(data_2);
        std::cout << "</a>";
    }
};

int main() {
    auto text_block1 = new ItalicText(new BoldText(new Text()));
    text_block1->render("Hello world");

    std::cout << std::endl;
    auto text_block2 = new Paragraph(new Text());
    text_block2->render("Hello world");

    std::cout << std::endl;
    auto text_block3 = new Reversed(new Text());
    text_block3->render("Hello world");

    std::cout << std::endl;
    auto text_block4 = new Link(new Text());
    text_block4->render("netology.ru", "Hello world");

    std::cout << std::endl;

    return 0;
}