mirror of
https://github.com/Gator96100/ProxSpace.git
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179 lines
7.4 KiB
C++
179 lines
7.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore/qglobal.h>
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#ifndef QFLAGS_H
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#define QFLAGS_H
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#include <QtCore/qtypeinfo.h>
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#include <QtCore/qtypetraits.h>
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#ifdef Q_COMPILER_INITIALIZER_LISTS
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#include <initializer_list>
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#endif
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QT_BEGIN_NAMESPACE
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class QFlag
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{
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int i;
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public:
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Q_DECL_CONSTEXPR inline QFlag(int ai) Q_DECL_NOTHROW : i(ai) {}
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Q_DECL_CONSTEXPR inline operator int() const Q_DECL_NOTHROW { return i; }
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#if !defined(Q_CC_MSVC)
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// Microsoft Visual Studio has buggy behavior when it comes to
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// unsigned enums: even if the enum is unsigned, the enum tags are
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// always signed
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# if !defined(__LP64__) && !defined(Q_QDOC)
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Q_DECL_CONSTEXPR inline QFlag(long ai) Q_DECL_NOTHROW : i(int(ai)) {}
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Q_DECL_CONSTEXPR inline QFlag(ulong ai) Q_DECL_NOTHROW : i(int(long(ai))) {}
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# endif
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Q_DECL_CONSTEXPR inline QFlag(uint ai) Q_DECL_NOTHROW : i(int(ai)) {}
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Q_DECL_CONSTEXPR inline QFlag(short ai) Q_DECL_NOTHROW : i(int(ai)) {}
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Q_DECL_CONSTEXPR inline QFlag(ushort ai) Q_DECL_NOTHROW : i(int(uint(ai))) {}
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Q_DECL_CONSTEXPR inline operator uint() const Q_DECL_NOTHROW { return uint(i); }
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#endif
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};
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Q_DECLARE_TYPEINFO(QFlag, Q_PRIMITIVE_TYPE);
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class QIncompatibleFlag
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{
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int i;
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public:
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Q_DECL_CONSTEXPR inline explicit QIncompatibleFlag(int i) Q_DECL_NOTHROW;
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Q_DECL_CONSTEXPR inline operator int() const Q_DECL_NOTHROW { return i; }
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};
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Q_DECLARE_TYPEINFO(QIncompatibleFlag, Q_PRIMITIVE_TYPE);
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Q_DECL_CONSTEXPR inline QIncompatibleFlag::QIncompatibleFlag(int ai) Q_DECL_NOTHROW : i(ai) {}
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#ifndef Q_NO_TYPESAFE_FLAGS
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template<typename Enum>
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class QFlags
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{
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Q_STATIC_ASSERT_X((sizeof(Enum) <= sizeof(int)),
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"QFlags uses an int as storage, so an enum with underlying "
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"long long will overflow.");
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struct Private;
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typedef int (Private::*Zero);
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public:
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#if defined(Q_CC_MSVC) || defined(Q_QDOC)
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// see above for MSVC
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// the definition below is too complex for qdoc
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typedef int Int;
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#else
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typedef typename QtPrivate::if_<
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QtPrivate::is_unsigned<Enum>::value,
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unsigned int,
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signed int
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>::type Int;
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#endif
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typedef Enum enum_type;
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// compiler-generated copy/move ctor/assignment operators are fine!
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#ifdef Q_QDOC
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inline QFlags(const QFlags &other);
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inline QFlags &operator=(const QFlags &other);
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#endif
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Q_DECL_CONSTEXPR inline QFlags(Enum f) Q_DECL_NOTHROW : i(Int(f)) {}
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Q_DECL_CONSTEXPR inline QFlags(Zero = Q_NULLPTR) Q_DECL_NOTHROW : i(0) {}
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Q_DECL_CONSTEXPR inline QFlags(QFlag f) Q_DECL_NOTHROW : i(f) {}
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#ifdef Q_COMPILER_INITIALIZER_LISTS
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Q_DECL_CONSTEXPR inline QFlags(std::initializer_list<Enum> flags) Q_DECL_NOTHROW
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: i(initializer_list_helper(flags.begin(), flags.end())) {}
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#endif
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(int mask) Q_DECL_NOTHROW { i &= mask; return *this; }
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(uint mask) Q_DECL_NOTHROW { i &= mask; return *this; }
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator&=(Enum mask) Q_DECL_NOTHROW { i &= Int(mask); return *this; }
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(QFlags f) Q_DECL_NOTHROW { i |= f.i; return *this; }
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator|=(Enum f) Q_DECL_NOTHROW { i |= Int(f); return *this; }
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(QFlags f) Q_DECL_NOTHROW { i ^= f.i; return *this; }
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Q_DECL_RELAXED_CONSTEXPR inline QFlags &operator^=(Enum f) Q_DECL_NOTHROW { i ^= Int(f); return *this; }
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Q_DECL_CONSTEXPR inline operator Int() const Q_DECL_NOTHROW { return i; }
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Q_DECL_CONSTEXPR inline QFlags operator|(QFlags f) const Q_DECL_NOTHROW { return QFlags(QFlag(i | f.i)); }
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Q_DECL_CONSTEXPR inline QFlags operator|(Enum f) const Q_DECL_NOTHROW { return QFlags(QFlag(i | Int(f))); }
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Q_DECL_CONSTEXPR inline QFlags operator^(QFlags f) const Q_DECL_NOTHROW { return QFlags(QFlag(i ^ f.i)); }
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Q_DECL_CONSTEXPR inline QFlags operator^(Enum f) const Q_DECL_NOTHROW { return QFlags(QFlag(i ^ Int(f))); }
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Q_DECL_CONSTEXPR inline QFlags operator&(int mask) const Q_DECL_NOTHROW { return QFlags(QFlag(i & mask)); }
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Q_DECL_CONSTEXPR inline QFlags operator&(uint mask) const Q_DECL_NOTHROW { return QFlags(QFlag(i & mask)); }
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Q_DECL_CONSTEXPR inline QFlags operator&(Enum f) const Q_DECL_NOTHROW { return QFlags(QFlag(i & Int(f))); }
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Q_DECL_CONSTEXPR inline QFlags operator~() const Q_DECL_NOTHROW { return QFlags(QFlag(~i)); }
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Q_DECL_CONSTEXPR inline bool operator!() const Q_DECL_NOTHROW { return !i; }
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Q_DECL_CONSTEXPR inline bool testFlag(Enum f) const Q_DECL_NOTHROW { return (i & Int(f)) == Int(f) && (Int(f) != 0 || i == Int(f) ); }
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private:
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#ifdef Q_COMPILER_INITIALIZER_LISTS
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Q_DECL_CONSTEXPR static inline Int initializer_list_helper(typename std::initializer_list<Enum>::const_iterator it,
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typename std::initializer_list<Enum>::const_iterator end)
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Q_DECL_NOTHROW
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{
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return (it == end ? Int(0) : (Int(*it) | initializer_list_helper(it + 1, end)));
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}
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#endif
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Int i;
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};
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#define Q_DECLARE_FLAGS(Flags, Enum)\
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typedef QFlags<Enum> Flags;
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#define Q_DECLARE_INCOMPATIBLE_FLAGS(Flags) \
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Q_DECL_CONSTEXPR inline QIncompatibleFlag operator|(Flags::enum_type f1, int f2) Q_DECL_NOTHROW \
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{ return QIncompatibleFlag(int(f1) | f2); }
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#define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) \
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Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, Flags::enum_type f2) Q_DECL_NOTHROW \
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{ return QFlags<Flags::enum_type>(f1) | f2; } \
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Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, QFlags<Flags::enum_type> f2) Q_DECL_NOTHROW \
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{ return f2 | f1; } Q_DECLARE_INCOMPATIBLE_FLAGS(Flags)
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#else /* Q_NO_TYPESAFE_FLAGS */
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#define Q_DECLARE_FLAGS(Flags, Enum)\
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typedef uint Flags;
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#define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags)
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#endif /* Q_NO_TYPESAFE_FLAGS */
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QT_END_NAMESPACE
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#endif // QFLAGS_H
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