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-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:FDL$
-** GNU Free Documentation License
-** 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.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms
-** and conditions contained in a signed written agreement between you
-** and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
- \example statemachine/factorial
- \title Factorial States Example
-
- The Factorial States example shows how to use \l{The State Machine
- Framework} to calculate the factorial of an integer.
-
- The statechart for calculating the factorial looks as follows:
-
- \image factorial-example.png
- \omit
- \caption This is a caption
- \endomit
-
- In other words, the state machine calculates the factorial of 6 and prints
- the result.
-
- \snippet examples/statemachine/factorial/main.cpp 0
-
- The Factorial class is used to hold the data of the computation, \c x and
- \c fac. It also provides a signal that's emitted whenever the value of \c
- x changes.
-
- \snippet examples/statemachine/factorial/main.cpp 1
-
- The FactorialLoopTransition class implements the guard (\c x > 1) and
- calculations (\c fac = \c x * \c fac; \c x = \c x - 1) of the factorial
- loop.
-
- \snippet examples/statemachine/factorial/main.cpp 2
-
- The FactorialDoneTransition class implements the guard (\c x <= 1) that
- terminates the factorial computation. It also prints the final result to
- standard output.
-
- \snippet examples/statemachine/factorial/main.cpp 3
-
- The application's main() function first creates the application object, a
- Factorial object and a state machine.
-
- \snippet examples/statemachine/factorial/main.cpp 4
-
- The \c compute state is created, and the initial values of \c x and \c fac
- are defined. A FactorialLoopTransition object is created and added to the
- state.
-
- \snippet examples/statemachine/factorial/main.cpp 5
-
- A final state, \c done, is created, and a FactorialDoneTransition object
- is created with \c done as its target state. The transition is then added
- to the \c compute state.
-
- \snippet examples/statemachine/factorial/main.cpp 6
-
- The machine's initial state is set to be the \c compute state. We connect
- the QStateMachine::finished() signal to the QCoreApplication::quit() slot,
- so the application will quit when the state machine's work is
- done. Finally, the state machine is started, and the application's event
- loop is entered.
-
- */