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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "analogclock.h"
++
++ #include <QMouseEvent>
++ #include <QPainter>
++
++ #include <QTime>
++ #include <QTimer>
++
++ AnalogClock::AnalogClock(QWidget *parent)
++ : QWidget(parent)
++ {
++ QTimer *timer = new QTimer(this);
++ connect(timer, &QTimer::timeout, this, qOverload<>(&QWidget::update));
++ timer->start(1000);
++
++ setWindowTitle(tr("Analog Clock"));
++ resize(200, 200);
++ }
++
++ void AnalogClock::paintEvent(QPaintEvent *)
++ {
++ static const QPoint hourHand[4] = {
++ QPoint(5, 14),
++ QPoint(-5, 14),
++ QPoint(-4, -71),
++ QPoint(4, -71)
++ };
++ static const QPoint minuteHand[4] = {
++ QPoint(4, 14),
++ QPoint(-4, 14),
++ QPoint(-3, -89),
++ QPoint(3, -89)
++ };
++ static const QPoint secondsHand[4] = {
++ QPoint(1, 14),
++ QPoint(-1, 14),
++ QPoint(-1, -89),
++ QPoint(1, -89)
++ };
++
++ const QColor hourColor(palette().color(QPalette::Text));
++ const QColor minuteColor(palette().color(QPalette::Text));
++ const QColor secondsColor(palette().color(QPalette::Accent));
++
++ int side = qMin(width(), height());
++
++ QPainter painter(this);
++ painter.setRenderHint(QPainter::Antialiasing);
++ painter.translate(width() / 2, height() / 2);
++ painter.scale(side / 200.0, side / 200.0);
++
++ QTime time = QTime::currentTime();
++
++ painter.setPen(Qt::NoPen);
++ painter.setBrush(hourColor);
++
++ painter.save();
++ painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
++ painter.drawConvexPolygon(hourHand, 4);
++ painter.restore();
++
++ for (int i = 0; i < 12; ++i) {
++ painter.drawRect(73, -3, 16, 6);
++ painter.rotate(30.0);
++ }
++
++ painter.setBrush(minuteColor);
++
++ painter.save();
++ painter.rotate(6.0 * time.minute());
++ painter.drawConvexPolygon(minuteHand, 4);
++ painter.restore();
++
++ painter.setBrush(secondsColor);
++
++ painter.save();
++ painter.rotate(6.0 * time.second());
++ painter.drawConvexPolygon(secondsHand, 4);
++ painter.drawEllipse(-3, -3, 6, 6);
++ painter.drawEllipse(-5, -68, 10, 10);
++ painter.restore();
++
++ painter.setPen(minuteColor);
++
++ for (int j = 0; j < 60; ++j) {
++ painter.drawLine(92, 0, 96, 0);
++ painter.rotate(6.0);
++ }
++ }