dialog_intf.hpp

// 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 "../macros.hpp"
#include <string_view>
#include <iostream>
#include <format>
#include <concepts>
#include <expected>
#include <system_error>
#include <utility>
 
hi_export_module(hikogui.utility.dialog : intf);
 
hi_export namespace hi {
inline namespace v1 {
 
enum class dialog_button {no, yes, cancel, ok, retry, _continue};
 
template<std::integral T>
[[nodiscard]] constexpr unsigned long long operator<<(T const &lhs, dialog_button const &rhs) noexcept
{
    return 1ULL << std::to_underlying(rhs);
}
 
enum class dialog_button_mask : uint64_t {
    no = 1 << dialog_button::no,
    yes = 1 << dialog_button::yes,
 
    cancel = 1 << dialog_button::cancel,

    ok = 1 << dialog_button::ok,
    retry = 1 << dialog_button::retry,
    _continue = 1 << dialog_button::_continue,

    cancel_retry_continue = cancel | retry | _continue,

    yes_no = yes | no,

    ok_cancel = ok | cancel,

    retry_cancel = retry | cancel,

    yes_no_cancel = yes | no | cancel,
};
 
[[nodiscard]] constexpr bool to_bool(dialog_button_mask const &rhs) noexcept
{
    return std::to_underlying(rhs) != 0;
}
 
[[nodiscard]] constexpr dialog_button_mask operator&(dialog_button_mask const &lhs, dialog_button_mask const &rhs) noexcept
{
    return static_cast<dialog_button_mask>(std::to_underlying(lhs) & std::to_underlying(rhs));
}
 
[[nodiscard]] constexpr dialog_button_mask operator|(dialog_button_mask const &lhs, dialog_button_mask const &rhs) noexcept
{
    return static_cast<dialog_button_mask>(std::to_underlying(lhs) | std::to_underlying(rhs));
}
 
[[nodiscard]] constexpr dialog_button_mask &operator&=(dialog_button_mask &lhs, dialog_button_mask const &rhs) noexcept
{
    return lhs = lhs & rhs;
}
 
[[nodiscard]] constexpr dialog_button_mask &operator|=(dialog_button_mask &lhs, dialog_button_mask const &rhs) noexcept
{
    return lhs = lhs | rhs;
}
 
[[nodiscard]] constexpr dialog_button_mask operator&(dialog_button_mask const &lhs, dialog_button const &rhs) noexcept
{
    return lhs & dialog_button_mask{1 << rhs};
}
 
[[nodiscard]] constexpr dialog_button_mask operator|(dialog_button_mask const &lhs, dialog_button const &rhs) noexcept
{
    return lhs | dialog_button_mask{1 << rhs};
}
 
[[nodiscard]] constexpr dialog_button_mask &operator&=(dialog_button_mask &lhs, dialog_button const &rhs) noexcept
{
    return lhs = lhs & rhs;
}
 
[[nodiscard]] constexpr dialog_button_mask &operator|=(dialog_button_mask &lhs, dialog_button const &rhs) noexcept
{
    return lhs = lhs | rhs;
}

std::expected<dialog_button, std::error_code> dialog(std::string_view title, std::string_view text, dialog_button_mask button_mask = dialog_button_mask::ok) noexcept;
 
} // namespace v1
} // namespace hi::inline v1