File indexing completed on 2024-04-14 05:24:53

 /*
     SPDX-FileCopyrightText: 2018 Michail Vourlakos <mvourlakos@gmail.com>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef EXTRAS_H
 #define EXTRAS_H
 
 // local
 #include <config-latte-lib.h>
 
 // C++
 #include <type_traits>
 #include <numeric>
 #include <memory>
 #include <cmath>
 
 // Qt
 #include <QObject>
 #include <QString>
 #include <QStringBuilder>
 #include <QRect>
 #include <QMetaEnum>
 #include <QMetaType>
 
 // Plasma
 #include <Plasma>
 
 //! There are gcc versions that don't support yet that function even though they
 //! publish themselves as C++14 compatible. Such a case is gcc 4.8.x that openSUSE
 //! LEAP 42.2-3 is using. By enabling this flag such systems can be build correctly.
 #if ENABLE_MAKE_UNIQUE
 namespace std {
 template<class T, class... Args>
 unique_ptr<T> make_unique(Args &&... args)
 {
     return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
 }
 }
 #endif
 
 /*!
  * @brief convert a QRect to a QString with format `(<x>, <y>) <width>x<height>`
  */
 inline QString qRectToStr(const QRect &r)
 {
     return "(" % QString::number(r.x()) % ", " % QString::number(r.y()) % ") "
            % QString::number(r.width()) % "x" % QString::number(r.height());
 }
 
 /*!
  * @brief convert a `Q_ENUM` to c-string
  */
 template<typename EnumType>
 inline const char *qEnumToStr(EnumType value)
 {
     return QMetaEnum::fromType<EnumType>().valueToKey(value);
 }
 
 /*!
  * @brief convert a `Q_ENUMS` of `Plasma::Types::Location` to c-string
  */
 inline const char *qEnumToStr(Plasma::Types::Location Enum)
 {
     static const int Index = Plasma::Types::staticMetaObject.indexOfEnumerator("Location");
     return Plasma::Types::staticMetaObject.enumerator(Index).valueToKey(Enum);
 }
 
 /*!
  * @brief convert a `Q_ENUMS` of `Plasma::Types::FormFactor` to c-string
  */
 inline const char *qEnumToStr(Plasma::Types::FormFactor Enum)
 {
     static const int Index = Plasma::Types::staticMetaObject.indexOfEnumerator("FormFactor");
     return Plasma::Types::staticMetaObject.enumerator(Index).valueToKey(Enum);
 }
 
 /*!
  * @brief machine epsilon
  */
 template<class T>
 typename std::enable_if < !std::is_integral<T>(), bool >::type almost_equal(T x, T y, int ulp)
 {
     return std::abs(x - y) < std::numeric_limits<T>::epsilon() * std::abs(x + y) * ulp
            || std::abs(x - y) < std::numeric_limits<T>::min();
 }
 
 #endif // EXTRAS_H