/****************************************************************************
**
** Copyright (C) 1992-2009 Nokia. All rights reserved.
**
** This file is part of Qt Jambi.
**
** ** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.


**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

package com.trolltech.examples;

import com.trolltech.qt.core.*;
import com.trolltech.qt.gui.*;

@QtJambiExample(name = "Analog Clock")
//! [0]
public class AnalogClock
    extends QWidget
{
    static QPolygon hourHand = new QPolygon();
    static QPolygon minuteHand = new QPolygon();
    static {
        hourHand.append(new QPoint(7, 8));
        hourHand.append(new QPoint(-7, 8));
        hourHand.append(new QPoint(0, -40));

        minuteHand.append(new QPoint(7, 8));
        minuteHand.append(new QPoint(-7, 8));
        minuteHand.append(new QPoint(0, -70));
    }

    QTimer m_timer = new QTimer(this);
//! [0]

//! [1]
    public AnalogClock() {
        this(null);
    }
//! [1]

    public AnalogClock(QWidget parent) {
        super(parent);
        m_timer.timeout.connect(this, "update()");

        setWindowTitle("Analog clock");
        setWindowIcon(new QIcon("classpath:com/trolltech/images/qt-logo.png"));
        resize(200, 200);
    }

    @Override
//! [2]
    protected void paintEvent(QPaintEvent e)
    {
        QColor hourColor = new QColor(127, 0, 127);
        QColor minuteColor = new QColor(0, 127, 127, 191);

        int side = width() < height() ? width() : height();

        QTime time = QTime.currentTime();
//! [2]

//! [3]
        QPainter painter = new QPainter(this);
        painter.setRenderHint(QPainter.RenderHint.Antialiasing);
        painter.translate(width() / 2, height() / 2);
        painter.scale(side / 200.0f, side / 200.0f);
//! [3]

//! [4]
        painter.setPen(QPen.NoPen);
        painter.setBrush(hourColor);
//! [4]

//! [5]
        painter.save();
        painter.rotate(30.0f * ((time.hour() + time.minute() / 60.0f)));
        painter.drawConvexPolygon(hourHand);
        painter.restore();
//! [5]

//! [6]
        painter.setPen(hourColor);

        for (int i=0; i<12; ++i) {
            painter.drawLine(88, 0, 96, 0);
            painter.rotate(30.0f);
        }
//! [6]

//! [7]
        painter.setPen(QPen.NoPen);
        painter.setBrush(minuteColor);

        painter.save();
        painter.rotate(6.0f * (time.minute() + time.second() / 60.0f));
        painter.drawConvexPolygon(minuteHand);
        painter.restore();
//! [7]

//! [8]
        painter.setPen(minuteColor);

        for (int j=0; j<60; ++j) {
            if ((j % 5) != 0)
                painter.drawLine(92, 0, 96, 0);
            painter.rotate(6.0f);
        }
//! [8]
    }

    @Override
    public QSize sizeHint() {
        return new QSize(200, 200);
    }

    @Override
//! [9]
    public void showEvent(QShowEvent e) {
        m_timer.start(1000);
    }

    @Override
    public void hideEvent(QHideEvent e) {
        m_timer.stop();
//! [9] //! [10]
    }
//! [10]

//! [11]
    static public void main(String args[])
    {
        QApplication.initialize(args);
        AnalogClock w = new AnalogClock();

        w.show();

        QApplication.exec();
    }
}
//! [11]
