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# qmouse_qws.h

Go to the documentation of this file.

    00001 /****************************************************************************
    00002 **
    00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
    00004 ** All rights reserved.
    00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
    00006 **
    00007 ** This file is part of the QtGui module of the Qt Toolkit.
    00008 **
    00009 ** $QT_BEGIN_LICENSE:LGPL$
    00010 ** Commercial Usage
    00011 ** Licensees holding valid Qt Commercial licenses may use this file in
    00012 ** accordance with the Qt Commercial License Agreement provided with the
    00013 ** Software or, alternatively, in accordance with the terms contained in
    00014 ** a written agreement between you and Nokia.
    00015 **
    00016 ** GNU Lesser General Public License Usage
    00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
    00018 ** General Public License version 2.1 as published by the Free Software
    00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
    00020 ** packaging of this file.  Please review the following information to
    00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00022 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00023 **
    00024 ** In addition, as a special exception, Nokia gives you certain additional
    00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
    00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
    00027 **
    00028 ** GNU General Public License Usage
    00029 ** Alternatively, this file may be used under the terms of the GNU
    00030 ** General Public License version 3.0 as published by the Free Software
    00031 ** Foundation and appearing in the file LICENSE.GPL included in the
    00032 ** packaging of this file.  Please review the following information to
    00033 ** ensure the GNU General Public License version 3.0 requirements will be
    00034 ** met: http://www.gnu.org/copyleft/gpl.html.
    00035 **
    00036 ** If you have questions regarding the use of this file, please contact
    00037 ** Nokia at qt-info@nokia.com.
    00038 ** $QT_END_LICENSE$
    00039 **
    00040 ****************************************************************************/
    00041
    00042 #ifndef QMOUSE_QWS_H
    00043 #define QMOUSE_QWS_H
    00044
    00045 #include <QtCore/qobject.h>
    00046 #include <QtGui/qpolygon.h>
    00047
    00048 QT_BEGIN_HEADER
    00049
    00050 QT_BEGIN_NAMESPACE
    00051
    00052 QT_MODULE(Gui)
    00053
    00054 class QWSMouseHandlerPrivate;
    00055 class QScreen;
    00056
    00057 class Q_GUI_EXPORT QWSPointerCalibrationData
    00058 {
    00059 public:
    00060     enum Location { TopLeft = 0, BottomLeft = 1, BottomRight = 2, TopRight = 3,
    00061                     Center = 4, LastLocation = Center };
    00062     QPoint devPoints[5];
    00063     QPoint screenPoints[5];
    00064 };
    00065
    00066 class Q_GUI_EXPORT QWSMouseHandler
    00067 {
    00068 public:
    00069     explicit QWSMouseHandler(const QString &driver = QString(),
    00070                              const QString &device = QString());
    00071     virtual ~QWSMouseHandler();
    00072
    00073     virtual void clearCalibration() {}
    00074     virtual void calibrate(const QWSPointerCalibrationData *) {}
    00075     virtual void getCalibration(QWSPointerCalibrationData *) const {}
    00076
    00077     virtual void resume() = 0;
    00078     virtual void suspend() = 0;
    00079
    00080     void limitToScreen(QPoint &pt);
    00081     void mouseChanged(const QPoint& pos, int bstate, int wheel = 0);
    00082     const QPoint &pos() const { return mousePos; }
    00083
    00084     void setScreen(const QScreen *screen);
    00085
    00086 protected:
    00087     QPoint &mousePos;
    00088     QWSMouseHandlerPrivate *d_ptr;
    00089 };
    00090
    00091
    00092 class Q_GUI_EXPORT QWSCalibratedMouseHandler : public QWSMouseHandler
    00093 {
    00094 public:
    00095     explicit QWSCalibratedMouseHandler(const QString &driver = QString(),
    00096                                        const QString &device = QString());
    00097
    00098     virtual void clearCalibration();
    00099     virtual void calibrate(const QWSPointerCalibrationData *);
    00100     virtual void getCalibration(QWSPointerCalibrationData *) const;
    00101
    00102 protected:
    00103     bool sendFiltered(const QPoint &, int button);
    00104     QPoint transform(const QPoint &);
    00105
    00106     void readCalibration();
    00107     void writeCalibration();
    00108     void setFilterSize(int);
    00109
    00110 private:
    00111     int a, b, c;
    00112     int d, e, f;
    00113     int s;
    00114     QPolygon samples;
    00115     int currSample;
    00116     int numSamples;
    00117 };
    00118
    00119 QT_END_NAMESPACE
    00120
    00121 QT_END_HEADER
    00122
    00123 #endif // QMOUSE_QWS_H