audio_device_widget.hpp

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// Copyright Take Vos 2022.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "selection_widget.hpp"
#include "grid_widget.hpp"
#include "../audio/audio_system.hpp"
#include "../audio/audio_device.hpp"
#include "../audio/audio_direction.hpp"
#include "../label.hpp"
#include <memory>
#include <string>
#include <array>
#include <optional>
#include <future>
 
namespace hi { inline namespace v1 {
 
class audio_device_widget final : public widget {
public:
    using super = widget;
 
    observer<std::string> device_id;
 
    observer<audio_direction> direction = audio_direction::bidirectional;
 
    virtual ~audio_device_widget();
 
    audio_device_widget(widget *parent, hi::audio_system& audio_system) noexcept;
 
    [[nodiscard]] generator<widget *> children() const noexcept override;
    [[nodiscard]] box_constraints update_constraints() noexcept override;
    void set_layout(widget_layout const& context) noexcept override;
    void draw(draw_context const& context) noexcept override;
    hitbox hitbox_test(point2i position) const noexcept override;
    [[nodiscard]] bool accepts_keyboard_focus(keyboard_focus_group group) const noexcept override;
private:
    hi::audio_system *_audio_system;
 
    std::shared_ptr<grid_widget> _grid_widget;
    box_constraints _grid_constraints;
    box_shape _grid_shape;
 
    selection_widget *_device_selection_widget = nullptr;
 
    observer<std::vector<std::pair<std::string, label>>> _device_list;
 
    hi::scoped_task<> _sync_device_list_task;
 
    [[nodiscard]] hi::scoped_task<> sync_device_list() noexcept;
};
 
}} // namespace hi::v1