horizontal_menu_group.h

/*
 * Copyright (c) 2025 Leonid Burygin
 *
 * This file is part of The Synthstrom Audible Deluge Firmware.
 *
 * The Synthstrom Audible Deluge Firmware is free software: you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 */
#pragma once
 
#include "deluge/gui/menu_item/submenu.h"
#include <gui/menu_item/horizontal_menu.h>
#include <string_view>
 
namespace deluge::gui::menu_item {
 
// A class to group multiple Horizontal menus into a single long Horizontal menu with paging
class HorizontalMenuGroup final : public HorizontalMenu {
public:
    HorizontalMenuGroup(std::initializer_list<HorizontalMenu*> menus)
        : HorizontalMenu(l10n::String::STRING_FOR_NONE, {}), menus_{menus} {}
 
    [[nodiscard]] std::string_view getTitle() const override;
    bool focusChild(const MenuItem* child) override;
    void beginSession(MenuItem* navigatedBackwardFrom) override;
    void endSession() override;
    bool hasItem(const MenuItem* item) override;
    void setCurrentItem(const MenuItem* item) override;
 
protected:
    void renderMenuItems(std::span<MenuItem*> items, const MenuItem* currentItem) override;
    void selectMenuItem(int32_t pageNumber, int32_t itemPos) override;
    void handleInstrumentButtonPress(std::span<MenuItem*> visiblePageItems, const MenuItem* previous,
                                     int32_t pressedButtonPosition) override;
    Paging& preparePaging(std::span<MenuItem*> items, const MenuItem*) override;
    void switchVisiblePage(int32_t direction) override;
 
private:
    std::vector<HorizontalMenu*> menus_{};
    HorizontalMenu* current_menu_{nullptr};
    MenuItem* navigated_backward_from{nullptr};
};
} // namespace deluge::gui::menu_item