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guide.h

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
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#ifndef GUIDE_H
#define GUIDE_H

#include "demoitem.h"

class Guide
{
public:
    Guide(Guide *follows = 0);
    virtual ~Guide();

    virtual void guide(DemoItem *item, float moveSpeed) = 0;
    void move(DemoItem *item, QPointF &dest, float moveSpeed);
    virtual QPointF startPos(){ return QPointF(0, 0); };
    virtual QPointF endPos(){ return QPointF(0, 0); };
    virtual float length(){ return 1; };
    float lengthAll();

    void setScale(float scaleX, float scaleY, bool all = true);
    void setFence(const QRectF &fence, bool all = true);

    int startLength;
    Guide *nextGuide;
    Guide *firstGuide;
    Guide *prevGuide;
    float scaleX;
    float scaleY;
    QRectF fence;
};

#endif // GUIDE_H


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