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+Python-QML integration
+======================
+
+This tutorial provides a quick walk-through of a python application that loads, and interacts with
+a QML file. QML is a declarative language that lets you design UIs faster than a traditional
+language, such as C++. The QtQml and QtQuick modules provides the necessary infrastructure for
+QML-based UIs.
+
+In this tutorial, you will learn how to integrate Python with a QML application.
+This mechanism will help us to understand how to use Python as a backend for certain
+signals from the UI elements in the QML interface. Additionally, you will learn how to provide
+a modern look to your QML application using one of the features from Qt Quick Controls 2.
+
+The tutorial is based on an application that allow you to set many text properties, like increasing
+the font size, changing the color, changing the style, and so on. Before you begin, install the
+`PySide6 <https://pypi.org/project/PySide6/>`_ Python packages.
+
+The following step-by-step process will guide you through the key elements of the QML based
+application and PySide6 integration:
+
+#. First, let's start with the following QML-based UI:
+
+ .. image:: textproperties_default.png
+
+ The design is based on a `GridLayout`, containing two `ColumnLayout`.
+ Inside the UI you will find many `RadioButton`, `Button`, and a `Slider`.
+
+#. With the QML file in place, you can load it from Python:
+
+ .. literalinclude:: main.py
+ :linenos:
+ :lines: 63-76
+ :emphasize-lines: 4,9
+
+ Notice that we only need a :code:`QQmlApplicationEngine` to
+ :code:`load` the QML file.
+
+#. Define the ``Bridge`` class, containing all the logic for the element
+ that will be register in QML:
+
+ .. literalinclude:: main.py
+ :linenos:
+ :lines: 14-54
+ :emphasize-lines: 3,4,7
+
+ Notice that the registration happens thanks to the :code:`QmlElement`
+ decorator, that underneath uses the reference to the :code:`Bridge`
+ class and the variables :code:`QML_IMPORT_NAME` and
+ :code:`QML_IMPORT_MAJOR_VERSION`.
+
+#. Now, go back to the QML file and connect the signals to the slots defined in the ``Bridge`` class:
+
+ .. code:: js
+
+ Bridge {
+ id: bridge
+ }
+
+ Inside the :code:`ApplicationWindow` we declare a component
+ with the same name as the Python class, and provide an :code:`id:`.
+ This :code:`id` will help you to get a reference to the element
+ that was registered from Python.
+
+ .. literalinclude:: view.qml
+ :linenos:
+ :lines: 45-55
+ :emphasize-lines: 6-8
+
+ The properties *Italic*, *Bold*, and *Underline* are mutually
+ exclusive, this means only one can be active at any time.
+ To achieve this each time we select one of these options, we
+ check the three properties via the QML element property as you can
+ see in the above snippet.
+ Only one of the three will return *True*, while the other two
+ will return *False*, that is how we make sure only one is being
+ applied to the text.
+
+#. Each slot verifies if the selected option contains the text associated
+ to the property:
+
+ .. literalinclude:: main.py
+ :linenos:
+ :lines: 42-47
+ :emphasize-lines: 4,6
+
+ Returning *True* or *False* allows you to activate and deactivate
+ the properties of the QML UI elements.
+
+ It is also possible to return other values that are not *Boolean*,
+ like the slot in charge of returning the font size:
+
+ .. literalinclude:: main.py
+ :linenos:
+ :lines: 34-39
+
+#. Now, for changing the look of our application, you have two options:
+
+ 1. Use the command line: execute the python file adding the option, ``--style``::
+
+ python main.py --style material
+
+ 2. Use a ``qtquickcontrols2.conf`` file:
+
+ .. literalinclude:: qtquickcontrols2.conf
+ :linenos:
+
+ Then add it to your ``.qrc`` file:
+
+ .. literalinclude:: style.qrc
+ :linenos:
+
+ Generate the *rc* file running, ``pyside6-rcc style.qrc -o style_rc.py``
+ And finally import it from your ``main.py`` script.
+
+ .. literalinclude:: main.py
+ :linenos:
+ :lines: 4-12
+ :emphasize-lines: 9
+
+ You can read more about this configuration file
+ `here <https://doc.qt.io/qt-5/qtquickcontrols2-configuration.html>`_.
+
+ The final look of your application will be:
+
+ .. image:: textproperties_material.png
+
+You can :download:`view.qml <view.qml>` and
+:download:`main.py <main.py>` to try this example.