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175 lines
7 KiB
C++
175 lines
7 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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#ifndef QTIMER_H
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#define QTIMER_H
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#include <QtCore/qglobal.h>
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#ifndef QT_NO_QOBJECT
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#include <QtCore/qbasictimer.h> // conceptual inheritance
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#include <QtCore/qobject.h>
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QT_BEGIN_NAMESPACE
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class Q_CORE_EXPORT QTimer : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(bool singleShot READ isSingleShot WRITE setSingleShot)
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Q_PROPERTY(int interval READ interval WRITE setInterval)
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Q_PROPERTY(int remainingTime READ remainingTime)
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Q_PROPERTY(Qt::TimerType timerType READ timerType WRITE setTimerType)
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Q_PROPERTY(bool active READ isActive)
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public:
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explicit QTimer(QObject *parent = Q_NULLPTR);
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~QTimer();
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inline bool isActive() const { return id >= 0; }
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int timerId() const { return id; }
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void setInterval(int msec);
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int interval() const { return inter; }
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int remainingTime() const;
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void setTimerType(Qt::TimerType atype) { this->type = atype; }
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Qt::TimerType timerType() const { return Qt::TimerType(type); }
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inline void setSingleShot(bool singleShot);
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inline bool isSingleShot() const { return single; }
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static void singleShot(int msec, const QObject *receiver, const char *member);
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static void singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, const char *member);
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#ifdef Q_QDOC
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static void singleShot(int msec, const QObject *receiver, PointerToMemberFunction method);
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static void singleShot(int msec, Qt::TimerType timerType, const QObject *receiver, PointerToMemberFunction method);
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static void singleShot(int msec, Functor functor);
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static void singleShot(int msec, Qt::TimerType timerType, Functor functor);
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static void singleShot(int msec, const QObject *context, Functor functor);
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static void singleShot(int msec, Qt::TimerType timerType, const QObject *context, Functor functor);
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#else
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// singleShot to a QObject slot
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template <typename Func1>
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static inline void singleShot(int msec, const typename QtPrivate::FunctionPointer<Func1>::Object *receiver, Func1 slot)
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{
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singleShot(msec, msec >= 2000 ? Qt::CoarseTimer : Qt::PreciseTimer, receiver, slot);
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}
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template <typename Func1>
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static inline void singleShot(int msec, Qt::TimerType timerType, const typename QtPrivate::FunctionPointer<Func1>::Object *receiver,
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Func1 slot)
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{
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typedef QtPrivate::FunctionPointer<Func1> SlotType;
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//compilation error if the slot has arguments.
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Q_STATIC_ASSERT_X(int(SlotType::ArgumentCount) == 0,
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"The slot must not have any arguments.");
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singleShotImpl(msec, timerType, receiver,
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new QtPrivate::QSlotObject<Func1, typename SlotType::Arguments, void>(slot));
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}
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// singleShot to a functor or function pointer (without context)
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template <typename Func1>
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static inline typename QtPrivate::QEnableIf<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
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!QtPrivate::is_same<const char*, Func1>::value, void>::Type
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singleShot(int msec, Func1 slot)
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{
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singleShot(msec, msec >= 2000 ? Qt::CoarseTimer : Qt::PreciseTimer, Q_NULLPTR, slot);
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}
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template <typename Func1>
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static inline typename QtPrivate::QEnableIf<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
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!QtPrivate::is_same<const char*, Func1>::value, void>::Type
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singleShot(int msec, Qt::TimerType timerType, Func1 slot)
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{
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singleShot(msec, timerType, Q_NULLPTR, slot);
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}
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// singleShot to a functor or function pointer (with context)
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template <typename Func1>
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static inline typename QtPrivate::QEnableIf<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
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!QtPrivate::is_same<const char*, Func1>::value, void>::Type
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singleShot(int msec, QObject *context, Func1 slot)
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{
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singleShot(msec, msec >= 2000 ? Qt::CoarseTimer : Qt::PreciseTimer, context, slot);
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}
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template <typename Func1>
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static inline typename QtPrivate::QEnableIf<!QtPrivate::FunctionPointer<Func1>::IsPointerToMemberFunction &&
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!QtPrivate::is_same<const char*, Func1>::value, void>::Type
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singleShot(int msec, Qt::TimerType timerType, QObject *context, Func1 slot)
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{
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//compilation error if the slot has arguments.
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typedef QtPrivate::FunctionPointer<Func1> SlotType;
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Q_STATIC_ASSERT_X(int(SlotType::ArgumentCount) <= 0, "The slot must not have any arguments.");
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singleShotImpl(msec, timerType, context,
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new QtPrivate::QFunctorSlotObject<Func1, 0,
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typename QtPrivate::List_Left<void, 0>::Value, void>(slot));
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}
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#endif
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public Q_SLOTS:
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void start(int msec);
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void start();
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void stop();
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Q_SIGNALS:
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void timeout(QPrivateSignal);
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protected:
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void timerEvent(QTimerEvent *) Q_DECL_OVERRIDE;
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private:
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Q_DISABLE_COPY(QTimer)
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inline int startTimer(int){ return -1;}
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inline void killTimer(int){}
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static void singleShotImpl(int msec, Qt::TimerType timerType,
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const QObject *receiver, QtPrivate::QSlotObjectBase *slotObj);
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int id, inter, del;
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uint single : 1;
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uint nulltimer : 1;
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uint type : 2;
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// reserved : 28
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};
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inline void QTimer::setSingleShot(bool asingleShot) { single = asingleShot; }
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QT_END_NAMESPACE
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#endif // QT_NO_QOBJECT
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#endif // QTIMER_H
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