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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the examples of the Qt Toolkit.

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    16 ** GNU Lesser General Public License Usage

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    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 

    44 #include "analogclock.h"

    45 

    46 AnalogClock::AnalogClock(QWidget *parent)

    47     : QWidget(parent)

    48 {

    49     QTimer *timer = new QTimer(this);

    50     connect(timer, SIGNAL(timeout()), this, SLOT(update()));

    51     timer->start(1000);

    52 

    53     setWindowTitle(tr("Analog Clock"));

    54     resize(200, 200);

    55 }

    56 

    57 void AnalogClock::paintEvent(QPaintEvent *)

    58 {

    59     static const QPoint hourHand[3] = {

    60         QPoint(7, 8),

    61         QPoint(-7, 8),

    62         QPoint(0, -40)

    63     };

    64     static const QPoint minuteHand[3] = {

    65         QPoint(7, 8),

    66         QPoint(-7, 8),

    67         QPoint(0, -70)

    68     };

    69 

    70     QColor hourColor(127, 0, 127);

    71     QColor minuteColor(0, 127, 127, 191);

    72 

    73     int side = qMin(width(), height());

    74     QTime time = QTime::currentTime();

    75 

    76     QPainter painter(this);

    77     painter.setRenderHint(QPainter::Antialiasing);

    78     painter.translate(width() / 2, height() / 2);

    79     painter.scale(side / 200.0, side / 200.0);

    80 

    81     painter.setPen(Qt::NoPen);

    82     painter.setBrush(hourColor);

    83 

    84     painter.save();

    85     painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));

    86     painter.drawConvexPolygon(hourHand, 3);

    87     painter.restore();

    88 

    89     painter.setPen(hourColor);

    90 

    91     for (int i = 0; i < 12; ++i) {

    92         painter.drawLine(88, 0, 96, 0);

    93         painter.rotate(30.0);

    94     }

    95 

    96     painter.setPen(Qt::NoPen);

    97     painter.setBrush(minuteColor);

    98 

    99     painter.save();

   100     painter.rotate(6.0 * (time.minute() + time.second() / 60.0));

   101     painter.drawConvexPolygon(minuteHand, 3);

   102     painter.restore();

   103 

   104     painter.setPen(minuteColor);

   105 

   106     for (int j = 0; j < 60; ++j) {

   107         if ((j % 5) != 0)

   108             painter.drawLine(92, 0, 96, 0);

   109         painter.rotate(6.0);

   110     }

   111 }