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Diffstat (limited to 'examples/location/minimal_map/doc/src/minimal_map.qdoc')
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diff --git a/examples/location/minimal_map/doc/src/minimal_map.qdoc b/examples/location/minimal_map/doc/src/minimal_map.qdoc new file mode 100644 index 00000000..06b310aa --- /dev/null +++ b/examples/location/minimal_map/doc/src/minimal_map.qdoc @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2016 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 minimal_map +\title Minimal Map (QML) +\ingroup qtlocation-examples +\brief The minimum code to display a map using Qt Quick. + +\image minimal_map.png + +\e {Minimal Map} demonstrates how to use the \l{Map} item to render a map. +It shows the minimum amount of code needed to display the map, and can be used +as a basis for further experimentation. + +\include examples-run.qdocinc + +\section1 C++ Code + +In \c main.cpp we use only the QGuiApplication and QQmlApplicationEngine +classes. + +\quotefromfile minimal_map/main.cpp +\skipto #include +\printto main + +In the main function, we first instantiate a QGuiApplication object. +Then we create a QQmlApplicationEngine and tell it to load \c main.qml +from the \l{The Qt Resource System}{Qt Resource System}. + +Finally, QGuiApplication::exec() launches the main event loop. + +\printuntil } + +\section1 QML Code + +In \c main.qml, we import the \l {Qt Location QML Types}{QtLocation} QML module +and its depending \l {Qt Positioning QML Types}{QtPositioning} QML module. +Next, we create the top level window, set a sensible default size, and make +it visible. The window will be filled by a \l [QML]{Map} item showing the map. + +\quotefromfile minimal_map/main.qml +\skipto import +\printuntil } +\printline } +\skipto Map +\printuntil } +\printline } + +The \l [QML]{Plugin} item is necessary to define the map provider we are +going to use. The example can work with any of the available geo services +plugins. However, some plugins may require additional plugin parameters +in order to function correctly and we can use \l [QML]{PluginParameter} +to specify them. In this example, we use the \c osm plugin, which is a +\l {Qt Location Open Street Map Plugin} and does not require any parameters. + +In the \l [QML]{Map} item, we refer to the \c plugin we use and we set the \c +center and the \c zoomLevel of the map. + +\section1 Requirements + +The example requires a working internet connection to download +\c OpenStreetMap map tiles. An optional system proxy should be picked +up automatically. +*/ |