/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QMOUSE_QWS_H+
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#define QMOUSE_QWS_H+
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+
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#include <QtCore/qobject.h>+
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#include <QtGui/qpolygon.h>+
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+
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QT_BEGIN_HEADER+
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+
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QT_BEGIN_NAMESPACE+
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+
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QT_MODULE(Gui)+
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+
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class QWSMouseHandlerPrivate;+
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class QScreen;+
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+
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class Q_GUI_EXPORT QWSPointerCalibrationData+
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{+
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public:+
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    enum Location { TopLeft = 0, BottomLeft = 1, BottomRight = 2, TopRight = 3,+
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                    Center = 4, LastLocation = Center };+
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    QPoint devPoints[5];+
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    QPoint screenPoints[5];+
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};+
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+
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class Q_GUI_EXPORT QWSMouseHandler+
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{+
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public:+
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    explicit QWSMouseHandler(const QString &driver = QString(),+
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                             const QString &device = QString());+
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    virtual ~QWSMouseHandler();+
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+
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    virtual void clearCalibration() {}+
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    virtual void calibrate(const QWSPointerCalibrationData *) {}+
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    virtual void getCalibration(QWSPointerCalibrationData *) const {}+
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+
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    virtual void resume() = 0;+
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    virtual void suspend() = 0;+
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+
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    void limitToScreen(QPoint &pt);+
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    void mouseChanged(const QPoint& pos, int bstate, int wheel = 0);+
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    const QPoint &pos() const { return mousePos; }+
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+
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    void setScreen(const QScreen *screen);+
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+
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protected:+
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    QPoint &mousePos;+
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    QWSMouseHandlerPrivate *d_ptr;+
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};+
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+
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+
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class Q_GUI_EXPORT QWSCalibratedMouseHandler : public QWSMouseHandler+
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{+
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public:+
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    explicit QWSCalibratedMouseHandler(const QString &driver = QString(),+
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                                       const QString &device = QString());+
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+
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    virtual void clearCalibration();+
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    virtual void calibrate(const QWSPointerCalibrationData *);+
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    virtual void getCalibration(QWSPointerCalibrationData *) const;+
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+
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protected:+
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    bool sendFiltered(const QPoint &, int button);+
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    QPoint transform(const QPoint &);+
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+
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    void readCalibration();+
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    void writeCalibration();+
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    void setFilterSize(int);+
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+
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private:+
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    int a, b, c;+
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    int d, e, f;+
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    int s;+
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    QPolygon samples;+
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    int currSample;+
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    int numSamples;+
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};+
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+
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QT_END_NAMESPACE+
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+
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QT_END_HEADER+
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+
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#endif // QMOUSE_QWS_H+
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