Method process_event

src/ui/elements/ui_button.cpp:74–109

    }

    void Button::process_event(const Event &e) {
        switch (e.type) {
        case EventType::Click:
            if (is_enabled()) {
                for (const auto &function : pressed_callbacks) {
                    function();
                }
            }
            break;
        case EventType::Hover: 
            set_style_enabled(hover_state, std::get<EventHover>(e.variant).active && is_enabled());
            break;
        case EventType::Enable:
            {
                bool enable_active = std::get<EventEnable>(e.variant).active;
                set_style_enabled(disabled_state, !enable_active);
                if (enable_active) {
                    set_cursor(Cursor::Pointer);
                    set_focusable(true);
                }
                else {
                    set_cursor(Cursor::None);
                    set_focusable(false);
                }
            }
            break;
        case EventType::Focus:
            set_style_enabled(focus_state, std::get<EventFocus>(e.variant).active);
            break;
        case EventType::Update:
            break;
        default:
            assert(false && "Unknown event type.");
            break;
        }
    }

    void Button::add_pressed_callback(std::function<void()> callback) {
        pressed_callbacks.emplace_back(callback);