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-rw-r--r--src/corelib/doc/snippets/timers/analogclock.cpp46
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]