Update examples documentation location

The current way of documenting examples is to include
qdoc and images source into example directory.
Fix examples in location and positioning.
Replace planespotter.jpg with png.

Change-Id: I4eeacbfa575e7ae3ef747703348f2f201899e548
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>

1 files changed, 87 insertions, 0 deletions

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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** 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 Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: http://www.gnu.org/copyleft/fdl.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+\example logfilepositionsource
+\title Log File Position Source (C++)
+\ingroup qtpositioning-examples
+
+\brief The Logfile Position Source shows how to create and work with a custom NMEA position source,
+       for platforms without GPS.
+
+The data is read from a file which has positional data in NMEA format. The resulting time and
+position information is then displayed to the screen as simple text in date/time and
+latitude/longitude format.
+
+This example class reads position data from a text file, \e log.txt. The file specifies position
+data using a simple text format: it contains one position update per line, where each line contains
+a date/time, a latitude and a longitude, separated by spaces. The date/time is in ISO 8601 format
+and the latitude and longitude are in degrees decimal format. Here is an excerpt from \e log.txt:
+
+\code
+2009-08-24T22:25:01 -27.576082 153.092415
+2009-08-24T22:25:02 -27.576223 153.092530
+2009-08-24T22:25:03 -27.576364 153.092648
+\endcode
+
+The class reads this data and distributes it via the
+\l{QGeoPositionInfoSource::positionUpdated()}{positionUpdated()} signal.
+
+Here is the definition of the \c LogFilePositionSource class:
+
+\quotefromfile logfilepositionsource/logfilepositionsource.h
+\skipto class LogFilePositionSource
+\printuntil };
+
+The main methods overrided by the subclass are:
+
+\list
+    \li \l{QGeoPositionInfoSource::startUpdates()}{startUpdates()}: called by client applications
+        to start regular position updates.
+    \li \l{QGeoPositionInfoSource::stopUpdates()}{stopUpdates()}: called by client applications to
+        stop regular position updates.
+    \li \l{QGeoPositionInfoSource::requestUpdate()}{requestUpdate()}: called by client applications
+        to request a single update, with a specified timeout.
+\endlist
+
+When a position update is available, the subclass emits the
+\l{QGeoPositionInfoSource::positionUpdated()}{positionUpdated()} signal.
+
+Here are the key methods in the class implementation:
+
+\quotefromfile logfilepositionsource/logfilepositionsource.cpp
+\skipto LogFilePositionSource::LogFilePositionSource
+\printuntil /^\}/
+\skipto LogFilePositionSource::startUpdates
+\printuntil /^\}/
+\skipto LogFilePositionSource::stopUpdates
+\printuntil /^\}/
+\skipto LogFilePositionSource::requestUpdate
+\printuntil /^\}/
+\printuntil LogFilePositionSource::readNextPosition
+\printuntil /^\}/
+*/