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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** 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
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWHEELAREA_P_H
#define QWHEELAREA_P_H

#include <QtGui/qevent.h>
#include <QtQuick/qquickitem.h>

QT_BEGIN_NAMESPACE

class QWheelArea : public QQuickItem
{
    Q_OBJECT
    Q_PROPERTY(qreal verticalDelta READ verticalDelta WRITE setVerticalDelta NOTIFY verticalWheelMoved)
    Q_PROPERTY(qreal horizontalDelta READ horizontalDelta WRITE setHorizontalDelta NOTIFY horizontalWheelMoved)
    Q_PROPERTY(qreal horizontalMinimumValue READ horizontalMinimumValue WRITE setHorizontalMinimumValue)
    Q_PROPERTY(qreal horizontalMaximumValue READ horizontalMaximumValue WRITE setHorizontalMaximumValue)
    Q_PROPERTY(qreal verticalMinimumValue READ verticalMinimumValue WRITE setVerticalMinimumValue)
    Q_PROPERTY(qreal verticalMaximumValue READ verticalMaximumValue WRITE setVerticalMaximumValue)
    Q_PROPERTY(qreal horizontalValue READ horizontalValue WRITE setHorizontalValue)
    Q_PROPERTY(qreal verticalValue READ verticalValue WRITE setVerticalValue)
    Q_PROPERTY(qreal scrollSpeed READ scrollSpeed WRITE setScrollSpeed NOTIFY scrollSpeedChanged)

public:
    QWheelArea(QQuickItem *parent = 0);
    virtual ~QWheelArea();

    void setHorizontalMinimumValue(qreal value);
    qreal horizontalMinimumValue() const;

    void setHorizontalMaximumValue(qreal value);
    qreal horizontalMaximumValue() const;

    void setVerticalMinimumValue(qreal value);
    qreal verticalMinimumValue() const;

    void setVerticalMaximumValue(qreal value);
    qreal verticalMaximumValue() const;

    void setHorizontalValue(qreal value);
    qreal horizontalValue() const;

    void setVerticalValue(qreal value);
    qreal verticalValue() const;

    void setVerticalDelta(qreal value);
    qreal verticalDelta() const;

    void setHorizontalDelta(qreal value);
    qreal horizontalDelta() const;

    void setScrollSpeed(qreal value);
    qreal scrollSpeed() const;

    void wheelEvent(QWheelEvent *event);

Q_SIGNALS:
    void verticalValueChanged();
    void horizontalValueChanged();
    void verticalWheelMoved();
    void horizontalWheelMoved();
    void scrollSpeedChanged();

private:
    qreal m_horizontalMinimumValue;
    qreal m_horizontalMaximumValue;
    qreal m_verticalMinimumValue;
    qreal m_verticalMaximumValue;
    qreal m_horizontalValue;
    qreal m_verticalValue;
    qreal m_verticalDelta;
    qreal m_horizontalDelta;
    qreal m_scrollSpeed;

    Q_DISABLE_COPY(QWheelArea)
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QWheelArea)

#endif // QWHEELAREA_P_H