Gui_Container.cppm

module;
#include <sstream>
#include <SFML/System/Vector2.hpp>
#include <SFML/Window/Event.hpp>
#include <SFML/Graphics/Transform.hpp>
#include <SFML/Graphics/RenderTarget.hpp>

export module SharedState:Gui_Container;

import :Gui_Element;
import Logger;
export class Gui_Container : public Gui_Element {
public:
    void read_in(std::stringstream& l_ss) override {}
    template<typename T>
    T* get_element(int l_index) {
        if (l_index < 0 || l_index >= m_children.size()) {
            Logger::getInstance().log("Error in Gui_Container::get_element: "
                                      "l_index is out of bounds of Gui_Container::m_children");
            throw std::out_of_range("Error in Gui_Container::get_element: l_index is out of bounds");
        }
        T* result = dynamic_cast<T*>(m_children[l_index].get());
        if (!result) {
            Logger::getInstance().log("Error in Gui_Container::get_element: bad cast");
            throw std::bad_cast();
        }
        return result;
    }
    void on_click(const sf::Vector2f& l_mousePos  = {0,0}) override {
        if (m_children[m_selected_item]->isSelectable()) {
            m_children[m_selected_item]->on_click();
        }
    }
    bool handleEvent(const sf::Event& l_event) override{ return false; }
    void update(const float& l_dt) override{}
    void select_next_selectable() {
        int old_selected = m_selected_item;
        do {
            m_selected_item = (m_selected_item + 1) % m_children.size();
        }while (!m_children[m_selected_item]->isSelectable());
        if (m_selected_item != -1) {
            m_children[old_selected]->set_selected(false);
        }
        m_children[m_selected_item]->set_selected(true);
    }
    void select_previous_selectable() {
        int old_selected = m_selected_item;
        do {
            m_selected_item = (m_selected_item - 1);
            if (m_selected_item < 0) {
                m_selected_item = int(m_children.size()) - 1;
            }
        }while (!m_children[m_selected_item]->isSelectable());
        if (old_selected != -1) {
            m_children[old_selected]->set_selected(false);
        }
        m_children[m_selected_item]->set_selected(true);

    }
    void selectElementAt(int l_index) {
        if (m_selected_item != -1) {
            m_children[m_selected_item]->set_selected(false);
        }
            m_selected_item = l_index;
            m_children[l_index]->set_selected(true);
    }
    void on_render(sf::RenderTarget* l_render_target, const sf::Transform& l_transform) override{}
    void on_release() override{}
    void on_hover(const sf::Vector2f& l_mousePos) override{}
    void on_leave() override{}

private:
    int m_selected_item = -1;
};