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#include <QtGui>

#include "analogclock.h"

//! [0] //! [1]

AnalogClock::AnalogClock(QWidget *parent)

//! [0] //! [2]

    : QWidget(parent)

//! [2] //! [3]

{

//! [3] //! [4]

    QTimer *timer = new QTimer(this);

//! [4] //! [5]

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

//! [5] //! [6]

    timer->start(1000);

//! [6]

    setWindowTitle(tr("Analog Clock"));

    resize(200, 200);

//! [7]

}

//! [1] //! [7]

//! [8] //! [9]

void AnalogClock::paintEvent(QPaintEvent *)

//! [8] //! [10]

{

    static const QPoint hourHand[3] = {

        QPoint(7, 8),

        QPoint(-7, 8),

        QPoint(0, -40)

    };

    static const QPoint minuteHand[3] = {

        QPoint(7, 8),

        QPoint(-7, 8),

        QPoint(0, -70)

    };

    QColor hourColor(127, 0, 127);

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

    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]