diff options
author | Thiago Macieira <thiago.macieira@intel.com> | 2012-03-28 16:54:15 -0300 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2012-04-13 08:33:28 +0200 |
commit | 84e45c646dcf64d3bb692eed1b861d4f8b9ef31f (patch) | |
tree | 16f134073a2a3732df0655aaaeef899d676d01ed /src/corelib/global/qflags.h | |
parent | 54fe4324d8d96e17f900cdd8510ffdca5e0f976f (diff) |
Move QFlags to qflags.h
This is a verbatim copy of the source code.
Change-Id: I1f7efc75cad1ba05dda31d8ccfd091ae9ae40fd5
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Diffstat (limited to 'src/corelib/global/qflags.h')
-rw-r--r-- | src/corelib/global/qflags.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h new file mode 100644 index 0000000000..7406185520 --- /dev/null +++ b/src/corelib/global/qflags.h @@ -0,0 +1,139 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QFLAGS_H +#define QFLAGS_H + +#include <QtCore/qglobal.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class Q_CORE_EXPORT QFlag +{ + int i; +public: + inline QFlag(int i); + inline operator int() const { return i; } +}; + +inline QFlag::QFlag(int ai) : i(ai) {} + +class Q_CORE_EXPORT QIncompatibleFlag +{ + int i; +public: + inline explicit QIncompatibleFlag(int i); + inline operator int() const { return i; } +}; + +inline QIncompatibleFlag::QIncompatibleFlag(int ai) : i(ai) {} + + +#ifndef Q_NO_TYPESAFE_FLAGS + +template<typename Enum> +class QFlags +{ + typedef void **Zero; + int i; +public: + typedef Enum enum_type; + // compiler-generated copy/move ctor/assignment operators are fine! +#ifdef qdoc + inline QFlags(const QFlags &other); + inline QFlags &operator=(const QFlags &other); +#endif + Q_DECL_CONSTEXPR inline QFlags(Enum f) : i(f) {} + Q_DECL_CONSTEXPR inline QFlags(Zero = 0) : i(0) {} + inline QFlags(QFlag f) : i(f) {} + + inline QFlags &operator&=(int mask) { i &= mask; return *this; } + inline QFlags &operator&=(uint mask) { i &= mask; return *this; } + inline QFlags &operator|=(QFlags f) { i |= f.i; return *this; } + inline QFlags &operator|=(Enum f) { i |= f; return *this; } + inline QFlags &operator^=(QFlags f) { i ^= f.i; return *this; } + inline QFlags &operator^=(Enum f) { i ^= f; return *this; } + + Q_DECL_CONSTEXPR inline operator int() const { return i; } + + Q_DECL_CONSTEXPR inline QFlags operator|(QFlags f) const { return QFlags(Enum(i | f.i)); } + Q_DECL_CONSTEXPR inline QFlags operator|(Enum f) const { return QFlags(Enum(i | f)); } + Q_DECL_CONSTEXPR inline QFlags operator^(QFlags f) const { return QFlags(Enum(i ^ f.i)); } + Q_DECL_CONSTEXPR inline QFlags operator^(Enum f) const { return QFlags(Enum(i ^ f)); } + Q_DECL_CONSTEXPR inline QFlags operator&(int mask) const { return QFlags(Enum(i & mask)); } + Q_DECL_CONSTEXPR inline QFlags operator&(uint mask) const { return QFlags(Enum(i & mask)); } + Q_DECL_CONSTEXPR inline QFlags operator&(Enum f) const { return QFlags(Enum(i & f)); } + Q_DECL_CONSTEXPR inline QFlags operator~() const { return QFlags(Enum(~i)); } + + Q_DECL_CONSTEXPR inline bool operator!() const { return !i; } + + inline bool testFlag(Enum f) const { return (i & f) == f && (f != 0 || i == int(f) ); } +}; + +#define Q_DECLARE_FLAGS(Flags, Enum)\ +typedef QFlags<Enum> Flags; + +#define Q_DECLARE_INCOMPATIBLE_FLAGS(Flags) \ +inline QIncompatibleFlag operator|(Flags::enum_type f1, int f2) \ +{ return QIncompatibleFlag(int(f1) | f2); } + +#define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) \ +Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, Flags::enum_type f2) \ +{ return QFlags<Flags::enum_type>(f1) | f2; } \ +Q_DECL_CONSTEXPR inline QFlags<Flags::enum_type> operator|(Flags::enum_type f1, QFlags<Flags::enum_type> f2) \ +{ return f2 | f1; } Q_DECLARE_INCOMPATIBLE_FLAGS(Flags) + + +#else /* Q_NO_TYPESAFE_FLAGS */ + +#define Q_DECLARE_FLAGS(Flags, Enum)\ +typedef uint Flags; +#define Q_DECLARE_OPERATORS_FOR_FLAGS(Flags) + +#endif /* Q_NO_TYPESAFE_FLAGS */ + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QFLAGS_H |