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# bubble.h Example File
opengl/overpainting/bubble.h

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        ** Copyright (C) 2006-2006 Trolltech ASA. All rights reserved.
        **
        ** This file is part of the documentation of the Qt Toolkit.
        **
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        ** License version 2.0 as published by the Free Software Foundation
        ** and appearing in the file LICENSE.GPL included in the packaging of
        ** this file.  Please review the following information to ensure GNU
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        #ifndef BUBBLE_H
        #define BUBBLE_H

        class Bubble
        {
        public:
            Bubble(const QPointF &position, qreal radius, const QPointF &velocity);

            void drawBubble(QPainter *painter);
            void updateBrush();
            void move(const QRect &bbox);
            QRectF rect();

        private:
            QColor randomColor();

            QBrush brush;
            QPointF position;
            QPointF vel;
            qreal radius;
            QColor innerColor;
            QColor outerColor;
        };

        #endif