diff options
Diffstat (limited to 'src/corelib/doc/snippets/timers/analogclock.cpp')
-rw-r--r-- | src/corelib/doc/snippets/timers/analogclock.cpp | 46 |
1 files changed, 18 insertions, 28 deletions
diff --git a/src/corelib/doc/snippets/timers/analogclock.cpp b/src/corelib/doc/snippets/timers/analogclock.cpp index 4052c185c4..5241e57879 100644 --- a/src/corelib/doc/snippets/timers/analogclock.cpp +++ b/src/corelib/doc/snippets/timers/analogclock.cpp @@ -5,7 +5,8 @@ #include "analogclock.h" -//! [0] //! [1] +// QTimer +//! [0] AnalogClock::AnalogClock(QWidget *parent) //! [0] //! [2] : QWidget(parent) @@ -23,11 +24,24 @@ AnalogClock::AnalogClock(QWidget *parent) resize(200, 200); //! [7] } -//! [1] //! [7] +//! [7] + +//! [analogclock-qchronotimer] +AnalogClock::AnalogClock(QWidget *parent) + + : QWidget(parent) +{ + auto *timer = new QChronoTimer(1s, this); + connect(timer, &QTimer::timeout, this, QOverload<>::of(&AnalogClock::update)); + timer->start(); + ... + ... + setWindowTitle(tr("Analog Clock")); + resize(200, 200); +} +//! [analogclock-qchronotimer] -//! [8] //! [9] void AnalogClock::paintEvent(QPaintEvent *) -//! [8] //! [10] { static const QPoint hourHand[3] = { QPoint(7, 8), @@ -45,64 +59,40 @@ void AnalogClock::paintEvent(QPaintEvent *) int side = qMin(width(), height()); QTime time = QTime::currentTime(); -//! [10] -//! [11] QPainter painter(this); -//! [11] //! [12] painter.setRenderHint(QPainter::Antialiasing); -//! [12] //! [13] painter.translate(width() / 2, height() / 2); -//! [13] //! [14] painter.scale(side / 200.0, side / 200.0); -//! [9] //! [14] -//! [15] painter.setPen(Qt::NoPen); -//! [15] //! [16] painter.setBrush(hourColor); -//! [16] -//! [17] //! [18] painter.save(); -//! [17] //! [19] painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0))); painter.drawConvexPolygon(hourHand, 3); painter.restore(); -//! [18] //! [19] -//! [20] painter.setPen(hourColor); -//! [20] //! [21] for (int i = 0; i < 12; ++i) { painter.drawLine(88, 0, 96, 0); painter.rotate(30.0); } -//! [21] -//! [22] painter.setPen(Qt::NoPen); -//! [22] //! [23] painter.setBrush(minuteColor); -//! [24] painter.save(); painter.rotate(6.0 * (time.minute() + time.second() / 60.0)); painter.drawConvexPolygon(minuteHand, 3); painter.restore(); -//! [23] //! [24] -//! [25] painter.setPen(minuteColor); -//! [25] //! [26] -//! [27] for (int j = 0; j < 60; ++j) { if ((j % 5) != 0) painter.drawLine(92, 0, 96, 0); painter.rotate(6.0); } -//! [27] } -//! [26] |