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39
40#ifndef QBASICTIMER_H
41#define QBASICTIMER_H
42
43#include <QtCore/qglobal.h>
44#include <QtCore/qnamespace.h>
45
46QT_BEGIN_NAMESPACE
47
48
49class QObject;
50
51class Q_CORE_EXPORT QBasicTimer
52{
53 int id;
54#if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
55 Q_DISABLE_COPY(QBasicTimer)
56#elif QT_DEPRECATED_SINCE(5, 14)
57public:
58 // Just here to preserve BC, we can't remove them yet
59 QT_DEPRECATED_X("copy-construction is unsupported; use move-construction instead")
60 QBasicTimer(const QBasicTimer &);
61 QT_DEPRECATED_X("copy-assignment is unsupported; use move-assignment instead")
62 QBasicTimer &operator=(const QBasicTimer &);
63#endif
64
65public:
66 constexpr QBasicTimer() noexcept : id{0} {}
67 inline ~QBasicTimer() { if (id) stop(); }
68
69 QBasicTimer(QBasicTimer &&other) noexcept
70 : id{qExchange(other.id, 0)}
71 {}
72
73 QBasicTimer& operator=(QBasicTimer &&other) noexcept
74 {
75 QBasicTimer{std::move(other)}.swap(*this);
76 return *this;
77 }
78
79 void swap(QBasicTimer &other) noexcept { qSwap(id, other.id); }
80
81 bool isActive() const noexcept { return id != 0; }
82 int timerId() const noexcept { return id; }
83
84 void start(int msec, QObject *obj);
85 void start(int msec, Qt::TimerType timerType, QObject *obj);
86 void stop();
87};
88Q_DECLARE_TYPEINFO(QBasicTimer, Q_MOVABLE_TYPE);
89
90inline void swap(QBasicTimer &lhs, QBasicTimer &rhs) noexcept { lhs.swap(rhs); }
91
92QT_END_NAMESPACE
93
94#endif // QBASICTIMER_H
95

source code of qtbase/src/corelib/kernel/qbasictimer.h