1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QChronoTimer>
#include <QObject>
#include <QTimer>
using namespace std::chrono;
class Foo : public QObject
{
public:
Foo();
};
Foo::Foo()
{
//! [0]
QTimer *timer = new QTimer(this);
//! [0] //! [1]
connect(timer, &QTimer::timeout, this, &Foo::updateCaption);
//! [1] //! [2]
timer->start(1000);
//! [2]
//! [3]
QTimer::singleShot(200, this, &Foo::updateCaption);
//! [3]
{
// ZERO-CASE
//! [4]
QTimer *timer = new QTimer(this);
//! [4] //! [5]
connect(timer, &QTimer::timeout, this, &Foo::processOneThing);
//! [5] //! [6]
timer->start();
//! [6]
}
}
// QChronoTimer
class MyWidget : QObject
{
MyWidget()
{
//! [qchronotimer-singleshot]
MyWidget widget;
QChronoTimer::singleShot(200ms, &widget, &MyWidget::updateCaption);
//! [qchronotimer-singleshot]
//! [zero-timer]
// The default interval is 0ns
QChronoTimer *timer = new QChronoTimer(this);
connect(timer, &QChronoTimer::timeout, this, &MyWidget::processOneThing);
timer->start();
//! [zero-timer]
{
//! [timer-interval-in-ctor]
QChronoTimer *timer = new QChronoTimer(1s, this);
connect(timer, &QChronoTimer::timeout, this, &MyWidget::processOneThing);
timer->start();
//! [timer-interval-in-ctor]
}
{
//! [timer-setinterval]
QChronoTimer *timer = new QChronoTimer(this);
connect(timer, &QChronoTimer::timeout, this, &MyWidget::processOneThing);
timer->setInterval(1s);
timer->start();
//! [timer-setinterval]
}
}
public Q_SLOTS:
void processOneThing();
};
int main()
{
}
|