Qt 5.6 | Qt Sensors | Qt Sensors - Explorer QML Example | propertyinfo.cpp Example File

Qt 5.6.3 Reference Documentation

# propertyinfo.cpp Example File

sensor_explorer/import/propertyinfo.cpp

      /****************************************************************************
      **
      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
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      ** This file is part of the QtSensors module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:LGPL21$
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      ** Alternatively, this file may be used under the terms of the GNU Lesser
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      #include "sensoritem.h"
      #include <QtCore/QDebug>
      #include <QtSensors>

      /*
          \class QPropertyInfo
          \brief The QPropertyInfo type provides an easy access for reading and writing the property values.
      */

      /*
          Construct a QPropertyInfo object with parent \a parent
      */
      QPropertyInfo::QPropertyInfo(QObject* parent)
          : QObject(parent)
          , _index(0)
          , _isWriteable(false)
          , _name("")
          , _typeName("")
          , _value("")
      {}

      /*
          Construct a QPropertyInfo object with parent \a parent, property name \a name, property index \a index,
          property write access \a writeable, property type \a typeName and property value \a value
      */
      QPropertyInfo::QPropertyInfo(const QString& name, int index, bool writeable, const QString& typeName, const QString& value, QObject* parent)
          : QObject(parent)
          , _index(index)
          , _isWriteable(writeable)
          , _name(name)
          , _typeName(typeName)
          , _value(value)
      {}

      /*
          \property QPropertyInfo::name
          Returns the name of the property
      */
      QString QPropertyInfo::name()
      {
          return _name;
      }

      /*
          \property QPropertyInfo::typeName
          Returns the type of the property
      */
      QString QPropertyInfo::typeName()
      {
          return _typeName;
      }

      /*
          \property QPropertyInfo::value
          Returns the current value of the property
      */
      QString QPropertyInfo::value()
      {
          return _value;
      }

      /*
          \fn void QPropertyInfo::valueChanged()
          Signal that notifies the client if the property value was changed.
      */

      /*
          \fn QPropertyInfo::setValue(const QString& value)
          Sets the value \a value of the property
      */
      void QPropertyInfo::setValue(const QString& value)
      {
          if (value != _value){
              _value = value;
              emit valueChanged();
          }
      }

      /*
          \fn QPropertyInfo::index()
          Returns the meta-data index of the property
      */
      int QPropertyInfo::index()
      {
          return _index;
      }

      /*
          \property QPropertyInfo::isWriteable
          Returns true if the property is writeable false if property is read only
      */
      bool QPropertyInfo::isWriteable()
      {
          return _isWriteable;
      }