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src/libmeegotouchhome/pagedpanning.h (fe2484903f2fb74b26a38696160a9314382a76f3)

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/*
 * This file is part of mhome
 *
 * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
 * All rights reserved.
 *
 * Contact: Tomas Junnonen <tomas.junnonen@nokia.com>
 *
 * This software, including documentation, is protected by copyright
 * controlled by Nokia Corporation. All rights are reserved. Copying,
 * including reproducing, storing, adapting or translating, any or all of
 * this material requires the prior written consent of Nokia Corporation.
 * This material also contains confidential information which may not be
 * disclosed to others without the prior written consent of Nokia.
 */
#ifndef PAGEDPANNING_H
#define PAGEDPANNING_H

#include <QObject>
#include <mphysics2dpanning.h>

class PagedPanning : public MPhysics2DPanning
{
    Q_OBJECT

public:
    PagedPanning(QObject* parent);

    virtual ~PagedPanning();

    void setPageCount(int pageCount);

    int pageCount() const;

    void panToPage(int page);

    void setPage(uint page);

    void setVelocityThreshold(qreal value);

    void setDragThreshold(qreal value);

    void setSlideLimit(int value);

    void setPageSnapSpringK(qreal value);

    void setPageSnapFriction(qreal value);

    void setPanThreshold(qreal value);

    int activePage() const;

    int targetPage() const;

    float pageWidth() const;

    void setPageWrapMode(bool enable);

    bool pageWrapMode() const;

protected:

    virtual void integrateAxis( Qt::Orientation orientation,
                                qreal &position,
                                qreal &velocity,
                                qreal &acceleration,
                                qreal &pointerDifference,
                                bool pointerPressed
                                );

    virtual void pointerPress(const QPointF &pos);

    virtual void pointerMove(const QPointF &pos);

    virtual void pointerRelease();


signals:
    void pageChanged(int page);

    void pageIsPanning(bool panning);

    void pageWrapped();

private slots:

    void panToCurrentPage();

private:
    void goToNextPageWithStrongEnoughFlick();

private:
    int pageCount_;

    int currentPage;

    bool snapMode;

    QRectF previousRange;

    qreal velocityThreshold_;

    qreal panThreshold;

    qreal dragThreshold_;

    int slideLimit_;

    qreal pageSnapSpringK_;

    qreal pageSnapFriction_;

    qreal previousPosition;

    int targetPage_;

    int initialPage;

    qreal previousPageWidth;

    qreal slideDistance(qreal initialVelocity, qreal friction);

    qreal latestSwipeLenght;

    bool wrapMode;

    bool pageWrapping;

#ifdef UNIT_TEST
    friend class Ut_PagedPanning;
#endif

};

#endif

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Copyright © 2010 Nokia Corporation

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