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-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc
-** All rights reserved.
-** For any questions to Digia, please use contact form at http://qt.digia.com
-**
-** This file is part of the QtDataVisualization module.
-**
-** Licensees holding valid Qt Enterprise licenses may use this file in
-** accordance with the Qt Enterprise License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Digia.
-**
-** If you have questions regarding the use of this file, please use
-** contact form at http://qt.digia.com
-**
-****************************************************************************/
-
-/*!
-    \example widget
-    \title Widget Example
-    \ingroup qtdatavisualization_examples
-    \brief Using Q3DBars in a widget application.
-
-    The widget example shows how to make a 3D bar graph using Q3DBars and combining the use of
-    widgets for adjusting several adjustable qualities. The example shows how to:
-
-    \list
-        \li Create an application with Q3DBars and some widgets
-        \li Use QBarDataProxy to set data to the graph
-        \li Adjust some graph properties using widget controls
-    \endlist
-
-    It also demonstrates how having negative bar values affects the graph.
-
-    \image widget-example.png
-
-    \section1 Creating the application
-
-    First, in main.cpp, we create a QApplication, instantiate Q3DBars and a window container
-    for it:
-
-    \snippet ../examples/widget/main.cpp 0
-
-    The call to QWidget::createWindowContainer is required, as all data visualization types
-    (Q3DBars, Q3DScatter, Q3DSurface) inherit QWindow. Any class inheriting QWindow cannot be used
-    as a widget any other way.
-
-    Then we'll create horizontal and vertical layouts. We'll add the graph and the vertical
-    layout into the horizontal one:
-
-    \snippet ../examples/widget/main.cpp 1
-
-    We're not using the vertical layout for anything yet, but we'll get back to it in
-    \l {Using widgets to control the graph}
-
-    Next, let's create another class to handle the data addition and other interaction with the
-    graph. Let's call it GraphModifier (See \l {Setting up the graph} and
-    \l {Adding data to the graph} for details):
-
-    \snippet ../examples/widget/main.cpp 2
-
-    The application main is done and we can show the graph and start the event loop:
-
-    \snippet ../examples/widget/main.cpp 3
-
-    \section1 Setting up the graph
-
-    Let's set up the graph in the constructor of the GraphModifier class we instantiated in the
-    application main:
-
-    \snippet ../examples/widget/graphmodifier.cpp 0
-
-    Let's take a closer look at parts of the code.
-
-    First we're creating the axes and the proxy into member variables to support changing them
-    easily later on, if we want to:
-
-    \snippet ../examples/widget/graphmodifier.cpp 1
-
-    Then we're setting some of the visual qualities for the graph:
-
-    \snippet ../examples/widget/graphmodifier.cpp 2
-
-    We're also setting up the axes and adding them to the graph. Notice that we're not setting them
-    active yet:
-
-    \snippet ../examples/widget/graphmodifier.cpp 3
-
-    And add the proxy. Note that we're not setting it active yet, but just adding it:
-
-    \snippet ../examples/widget/graphmodifier.cpp 4
-
-    That concludes setting up the graph.
-
-    \section1 Adding data to the graph
-
-    At the end of the constructor there's a call:
-
-    \code resetTemperatureData(); \endcode
-
-    The method is used to add data to the proxy:
-
-    \snippet ../examples/widget/graphmodifier.cpp 5
-
-    Now the data is in the proxy, but not in the graph. We have not set the proxy active yet.
-
-    In application main, we called \c {modifier->start()} after constructing all the necessary
-    objects. This is what is done in it:
-
-    \snippet ../examples/widget/graphmodifier.cpp 6
-
-    Finally we set the proxy and the axes active. Now our graph has the data and is ready to be
-    used.
-
-    \section1 Using widgets to control the graph
-
-    There isn't much interaction yet, so let's continue by adding some widgets back in the
-    application main. Let's just focus on two:
-
-    \snippet ../examples/widget/main.cpp 4
-
-    We can use these to rotate the graph using slider widgets instead of just using the mouse or
-    touch.
-
-    Let's add them to the vertical layout we created earlier:
-
-    \snippet ../examples/widget/main.cpp 5
-
-    Then we'll connect them to methods in GraphModifier:
-
-    \snippet ../examples/widget/main.cpp 6
-
-    Here are the methods in GraphModifier the signals were connected to:
-
-    \snippet ../examples/widget/graphmodifier.cpp 7
-
-    Now these two sliders can be used to rotate the graph.
-
-    And so we have an application in which we can control:
-
-    \list
-        \li Graph rotation
-        \li Label style
-        \li Camera preset
-        \li Background visibility
-        \li Grid visibility
-        \li Bar shading smoothness
-        \li Bar style
-        \li Selection mode
-        \li Theme
-        \li Shadow quality
-        \li Font
-        \li Font size
-    \endlist
-
-    \section1 Example contents
-
-*/