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author | Qt by Nokia <qt-info@nokia.com> | 2011-04-27 12:05:43 +0200 |
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committer | axis <qt-info@nokia.com> | 2011-04-27 12:05:43 +0200 |
commit | 38be0d13830efd2d98281c645c3a60afe05ffece (patch) | |
tree | 6ea73f3ec77f7d153333779883e8120f82820abe /doc/src/examples/eventtransitions.qdoc |
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Branched from the monolithic repo, Qt master branch, at commit
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Diffstat (limited to 'doc/src/examples/eventtransitions.qdoc')
-rw-r--r-- | doc/src/examples/eventtransitions.qdoc | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/doc/src/examples/eventtransitions.qdoc b/doc/src/examples/eventtransitions.qdoc new file mode 100644 index 0000000000..be6e814ef8 --- /dev/null +++ b/doc/src/examples/eventtransitions.qdoc @@ -0,0 +1,72 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the documentation of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:FDL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/*! + \example statemachine/eventtransitions + \title Event Transitions Example + + The Event Transitions example shows how to use event transitions, a + feature of \l{The State Machine Framework}. + + \snippet examples/statemachine/eventtransitions/main.cpp 0 + + The \c Window class's constructors begins by creating a button. + + \snippet examples/statemachine/eventtransitions/main.cpp 1 + + Two states, \c s1 and \c s2, are created; upon entry they will assign + "Outside" and "Inside" to the button's text, respectively. + + \snippet examples/statemachine/eventtransitions/main.cpp 2 + + When the button receives an event of type QEvent::Enter and the state + machine is in state \c s1, the machine will transition to state \c s2. + + \snippet examples/statemachine/eventtransitions/main.cpp 3 + + When the button receives an event of type QEvent::Leave and the state + machine is in state \c s2, the machine will transition back to state \c + s1. + + \snippet examples/statemachine/eventtransitions/main.cpp 4 + + Next, the state \c s3 is created. \c s3 will be entered when the button + receives an event of type QEvent::MouseButtonPress and the state machine + is in state \c s2. When the button receives an event of type + QEvent::MouseButtonRelease and the state machine is in state \c s3, the + machine will transition back to state \c s2. + + \snippet examples/statemachine/eventtransitions/main.cpp 5 + + Finally, the states are added to the machine as top-level states, the + initial state is set to be \c s1 ("Outside"), and the machine is started. + + \snippet examples/statemachine/eventtransitions/main.cpp 6 + + The main() function constructs a Window object and shows it. + +*/ |