/****************************************************************************
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 ** Copyright (C) 2007-2007 Trolltech ASA. All rights reserved.
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 ** This file is part of the example classes of the Qt Toolkit.
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 ** License version 2.0 as published by the Free Software Foundation
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 #include <QtGui>
 #include <math.h>
 
 #include "starrating.h"
 
 const int PaintingScaleFactor = 20;
 
 StarRating::StarRating(int starCount, int maxStarCount)
 {
     myStarCount = starCount;
     myMaxStarCount = maxStarCount;
 
     starPolygon << QPointF(1.0, 0.5);
     for (int i = 1; i < 5; ++i)
         starPolygon << QPointF(0.5 + 0.5 * cos(0.8 * i * 3.14),
                                0.5 + 0.5 * sin(0.8 * i * 3.14));
 
     diamondPolygon << QPointF(0.4, 0.5) << QPointF(0.5, 0.4)
                    << QPointF(0.6, 0.5) << QPointF(0.5, 0.6)
                    << QPointF(0.4, 0.5);
 }
 
 QSize StarRating::sizeHint() const
 {
     return PaintingScaleFactor * QSize(myMaxStarCount, 1);
 }
 
 void StarRating::paint(QPainter *painter, const QRect &amp;rect,
                        const QPalette &amp;palette, EditMode mode) const
 {
     painter->save();
 
     painter->setRenderHint(QPainter::Antialiasing, true);
     painter->setPen(Qt::NoPen);
 
     if (mode == Editable) {
         painter->setBrush(palette.highlight());
     } else {
         painter->setBrush(palette.foreground());
     }
 
     int yOffset = (rect.height() - PaintingScaleFactor) / 2;
     painter->translate(rect.x(), rect.y() + yOffset);
     painter->scale(PaintingScaleFactor, PaintingScaleFactor);
 
     for (int i = 0; i < myMaxStarCount; ++i) {
         if (i < myStarCount) {
             painter->drawPolygon(starPolygon, Qt::WindingFill);
         } else if (mode == Editable) {
             painter->drawPolygon(diamondPolygon, Qt::WindingFill);
         }
         painter->translate(1.0, 0.0);
     }
 
     painter->restore();
 }