project-kyoku/src/gui/widgets/menubar.cpp

#include "menubar.h"
#include "iostream"

MenuBar::MenuBar(const std::shared_ptr<sf::Font>& font) :
    _font(font),
    _amount_buttons(0),
    _button_width(170)
{
    _bar_rect.setFillColor(sf::Color(88, 57, 107));
}

void MenuBar::input(const sf::Event &event)
{
    switch (event.type)
    {
    default:
        break;

    case sf::Event::MouseButtonReleased:
        if (!isUnderMouse(event.mouseButton.x, event.mouseButton.y))
        {
            for (auto& submenu : _submenus)
                submenu->unlock();
        }
        break;
    }

    Widget::input(event);
}

void MenuBar::update(const sf::Time& dt)
{
    Widget::update(dt);
}

void MenuBar::draw(sf::RenderTarget& target, sf::RenderStates states) const
{
    if (_is_visible)
        target.draw(_bar_rect, states);

    Widget::draw(target, states);
}

void MenuBar::setRect(const sf::FloatRect& rect)
{
    _bar_rect.setPosition(rect.left, rect.top);
    _bar_rect.setSize({rect.width, rect.height});

    // Buttons will not resize
}

void MenuBar::setPosition(const sf::Vector2f& position)
{
    _bar_rect.setPosition(position);
}

bool MenuBar::isUnderMouse(int mouse_x, int mouse_y) const
{
    bool bar_under_mouse = _bar_rect.getGlobalBounds().contains(mouse_x, mouse_y);

    bool submenus_under_mouse = std::any_of(_children.begin(), _children.end(),
                                            [x=mouse_x, y=mouse_y](const auto& child)
                                            {
                                                return child->isUnderMouse(x, y);
                                            });

    return bar_under_mouse || submenus_under_mouse;
}

void MenuBar::addSubMenu(std::string name, const std::shared_ptr<MenuDrop>& submenu)
{
    const auto new_button = std::make_shared<PushButton>(name, _font);

    std::size_t current_index = _amount_buttons;
    new_button->setRect(sf::FloatRect(current_index * _button_width, 0, _button_width, _bar_rect.getSize().y));
    new_button->setCallback([submenu=submenu]()
                            {
                                submenu->setVisibility(true);
                                submenu->lock();
                            });

    submenu->setPosition({static_cast<float>(current_index * _button_width),
                          _bar_rect.getSize().y});

    new_button->setFillColors(sf::Color(171, 141, 189), sf::Color(48, 27, 57));
    addChild(new_button);
    addChild(submenu);

    _submenus.emplace_back(submenu);

    ++_amount_buttons;
}

void MenuBar::setVisibility(bool is_visible)
{
    Widget::setVisibility(is_visible);

    for (auto& submenu : _submenus)
        submenu->setVisibility(false);
}