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-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://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 https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://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: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
- \example multipleinheritance
- \ingroup examples-qtuitools
- \title Multiple Inheritance Example
-
- \brief Using a form created with Qt Designer in an application.
-
- The Multiple Inheritance Example shows how to use a form created with
- \l{Qt Designer} in an application by subclassing both QWidget and the user
- interface class, which is \c{Ui::CalculatorForm}.
-
- \image multipleinheritance-example.png
-
- To subclass the \c calculatorform.ui file and ensure that \c qmake
- processes it with the \c uic, we have to include \c calculatorform.ui
- in the \c .pro file, as shown below:
-
- \snippet multipleinheritance/multipleinheritance.pro 0
-
- When the project is compiled, the \c uic will generate a corresponding
- \c ui_calculatorform.h.
-
- \section1 CalculatorForm Definition
-
- In the \c CalculatorForm definition, we include the \c ui_calculatorform.h
- that was generated earlier.
-
- \snippet multipleinheritance/calculatorform.h 0
-
- As mentioned earlier, the class is a subclass of both QWidget and
- \c{Ui::CalculatorForm}.
-
- \snippet multipleinheritance/calculatorform.h 1
-
- Two slots are defined according to the \l{Automatic Connections}
- {automatic connection} naming convention required by \c uic. This is
- to ensure that \l{QMetaObject}'s auto-connection facilities connect
- all the signals and slots involved automatically.
-
- \section1 CalculatorForm Implementation
-
- In the constructor, we call \c setupUi() to load the user interface file.
- Note that setupUi is a method of \c Ui::CalculatorForm.
-
- \snippet multipleinheritance/calculatorform.cpp 0
-
- We include two slots, \c{on_inputSpinBox1_valueChanged()} and
- \c{on_inputSpinBox2_valueChanged()}. These slots respond to the
- \l{QSpinBox::valueChanged()}{valueChanged()} signal that both spin boxes
- emit. Whenever there is a change in one spin box's value, we take that
- value and add it to whatever value the other spin box has.
-
- \snippet multipleinheritance/calculatorform.cpp 1
- \codeline
- \snippet multipleinheritance/calculatorform.cpp 2
-
- \section1 \c main() Function
-
- The \c main() function instantiates QApplication and \c CalculatorForm.
- The \c calculator object is displayed by invoking the \l{QWidget::show()}
- {show()} function.
-
- \snippet multipleinheritance/main.cpp 0
-
- There are various approaches to include forms into applications. The
- Multiple Inheritance approach is just one of them. See
- \l{Using a Designer UI File in Your Application} for more information on
- the other approaches available.
-*/