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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtPositioning module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QNMEAPOSITIONINFOSOURCE_P_H
#define QNMEAPOSITIONINFOSOURCE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qnmeapositioninfosource.h"
#include "qgeopositioninfo.h"
#include <QObject>
#include <QQueue>
#include <QPointer>
QT_BEGIN_NAMESPACE
class QBasicTimer;
class QTimerEvent;
class QTimer;
class QNmeaReader;
struct QPendingGeoPositionInfo
{
QGeoPositionInfo info;
bool hasFix;
};
class QNmeaPositionInfoSourcePrivate : public QObject
{
Q_OBJECT
public:
QNmeaPositionInfoSourcePrivate(QNmeaPositionInfoSource *parent, QNmeaPositionInfoSource::UpdateMode updateMode);
~QNmeaPositionInfoSourcePrivate();
void startUpdates();
void stopUpdates();
void requestUpdate(int msec);
bool parsePosInfoFromNmeaData(const char *data,
int size,
QGeoPositionInfo *posInfo,
bool *hasFix);
void notifyNewUpdate(QGeoPositionInfo *update, bool fixStatus);
QNmeaPositionInfoSource::UpdateMode m_updateMode;
QPointer<QIODevice> m_device;
QGeoPositionInfo m_lastUpdate;
bool m_invokedStart;
QGeoPositionInfoSource::Error m_positionError;
double m_userEquivalentRangeError;
public Q_SLOTS:
void readyRead();
protected:
void timerEvent(QTimerEvent *event);
private Q_SLOTS:
void emitPendingUpdate();
void sourceDataClosed();
void updateRequestTimeout();
private:
bool openSourceDevice();
bool initialize();
void prepareSourceDevice();
void emitUpdated(const QGeoPositionInfo &update);
QNmeaPositionInfoSource *m_source;
QNmeaReader *m_nmeaReader;
QBasicTimer *m_updateTimer;
QGeoPositionInfo m_pendingUpdate;
QDate m_currentDate;
QTimer *m_requestTimer;
qreal m_horizontalAccuracy;
qreal m_verticalAccuracy;
bool m_noUpdateLastInterval;
bool m_updateTimeoutSent;
bool m_connectedReadyRead;
};
class QNmeaReader
{
public:
explicit QNmeaReader(QNmeaPositionInfoSourcePrivate *sourcePrivate)
: m_proxy(sourcePrivate) {}
virtual ~QNmeaReader() {}
virtual void readAvailableData() = 0;
protected:
QNmeaPositionInfoSourcePrivate *m_proxy;
};
class QNmeaRealTimeReader : public QNmeaReader
{
public:
explicit QNmeaRealTimeReader(QNmeaPositionInfoSourcePrivate *sourcePrivate);
virtual void readAvailableData();
};
class QNmeaSimulatedReader : public QObject, public QNmeaReader
{
Q_OBJECT
public:
explicit QNmeaSimulatedReader(QNmeaPositionInfoSourcePrivate *sourcePrivate);
~QNmeaSimulatedReader();
virtual void readAvailableData();
protected:
virtual void timerEvent(QTimerEvent *event);
private Q_SLOTS:
void simulatePendingUpdate();
private:
bool setFirstDateTime();
void processNextSentence();
QQueue<QPendingGeoPositionInfo> m_pendingUpdates;
int m_currTimerId;
bool m_hasValidDateTime;
};
QT_END_NAMESPACE
#endif
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