73 lines
2.9 KiB
Plaintext
73 lines
2.9 KiB
Plaintext
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:FDL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Free Documentation License Usage
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** Alternatively, this file may be used under the terms of the GNU Free
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** Documentation License version 1.3 as published by the Free Software
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** Foundation and appearing in the file included in the packaging of
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** this file. Please review the following information to ensure
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** the GNU Free Documentation License version 1.3 requirements
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/*!
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\example statemachine/eventtransitions
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\title Event Transitions Example
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\brief The Event Transitions example shows how to use event transitions, a
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feature of \l{The State Machine Framework}.
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\snippet statemachine/eventtransitions/main.cpp 0
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The \c Window class's constructors begins by creating a button.
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\snippet statemachine/eventtransitions/main.cpp 1
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Two states, \c s1 and \c s2, are created; upon entry they will assign
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"Outside" and "Inside" to the button's text, respectively.
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\snippet statemachine/eventtransitions/main.cpp 2
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When the button receives an event of type QEvent::Enter and the state
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machine is in state \c s1, the machine will transition to state \c s2.
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\snippet statemachine/eventtransitions/main.cpp 3
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When the button receives an event of type QEvent::Leave and the state
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machine is in state \c s2, the machine will transition back to state \c
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s1.
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\snippet statemachine/eventtransitions/main.cpp 4
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Next, the state \c s3 is created. \c s3 will be entered when the button
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receives an event of type QEvent::MouseButtonPress and the state machine
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is in state \c s2. When the button receives an event of type
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QEvent::MouseButtonRelease and the state machine is in state \c s3, the
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machine will transition back to state \c s2.
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\snippet statemachine/eventtransitions/main.cpp 5
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Finally, the states are added to the machine as top-level states, the
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initial state is set to be \c s1 ("Outside"), and the machine is started.
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\snippet statemachine/eventtransitions/main.cpp 6
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The main() function constructs a Window object and shows it.
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*/
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