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/*
* This source file is part of MyGUI. For the latest info, see http://mygui.info/
* Distributed under the MIT License
* (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
*/
#ifndef MYGUI_LOG_LEVEL_H_
#define MYGUI_LOG_LEVEL_H_
#include "MyGUI_Prerequest.h"
#include <string>
#include <cstring>
#include <iostream>
namespace MyGUI
{
struct MYGUI_EXPORT LogLevel
{
enum Enum
{
Info, // Информационное сообщение.
Warning, // Несущественная проблема.
Error, // Устранимая ошибка.
Critical, // Неустранимая ошибка или сбой в работе приложения.
MAX
};
LogLevel() :
mValue(Info)
{
}
LogLevel(Enum _value) :
mValue(_value)
{
}
static LogLevel parse(std::string_view _value)
{
LogLevel type;
int value = 0;
while (true)
{
std::string_view name = type.getValueName(value);
if (name.empty() || name == _value)
break;
value++;
}
type.mValue = static_cast<Enum>(value);
return type;
}
friend bool operator<(LogLevel const& a, LogLevel const& b)
{
return a.mValue < b.mValue;
}
friend bool operator>=(LogLevel const& a, LogLevel const& b)
{
return !(a < b);
}
friend bool operator>(LogLevel const& a, LogLevel const& b)
{
return (b < a);
}
friend bool operator<=(LogLevel const& a, LogLevel const& b)
{
return !(a > b);
}
friend bool operator==(LogLevel const& a, LogLevel const& b)
{
return !(a < b) && !(a > b);
}
friend bool operator!=(LogLevel const& a, LogLevel const& b)
{
return !(a == b);
}
friend std::ostream& operator<<(std::ostream& _stream, const LogLevel& _value)
{
_stream << _value.getValueName(_value.mValue);
return _stream;
}
friend std::istream& operator>>(std::istream& _stream, LogLevel& _value)
{
std::string value;
_stream >> value;
_value = parse(value);
return _stream;
}
std::string_view print() const
{
return getValueName(mValue);
}
int getValue() const
{
return mValue;
}
private:
std::string_view getValueName(int _index) const
{
if (_index < 0 || _index >= MAX)
return {};
static const std::string_view values[MAX] = {"Info", "Warning", "Error", "Critical"};
return values[_index];
}
private:
Enum mValue;
};
} // namespace MyGUI
#endif // MYGUI_LOG_LEVEL_H_
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