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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);
}
}
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