source: trunk/doc/src/examples/eventtransitions.qdoc@ 651

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41
42/*!
43 \example statemachine/eventtransitions
44 \title Event Transitions Example
45
46 The Event Transitions example shows how to use event transitions, a
47 feature of \l{The State Machine Framework}.
48
49 \snippet examples/statemachine/eventtransitions/main.cpp 0
50
51 The \c Window class's constructors begins by creating a button.
52
53 \snippet examples/statemachine/eventtransitions/main.cpp 1
54
55 Two states, \c s1 and \c s2, are created; upon entry they will assign
56 "Outside" and "Inside" to the button's text, respectively.
57
58 \snippet examples/statemachine/eventtransitions/main.cpp 2
59
60 When the button receives an event of type QEvent::Enter and the state
61 machine is in state \c s1, the machine will transition to state \c s2.
62
63 \snippet examples/statemachine/eventtransitions/main.cpp 3
64
65 When the button receives an event of type QEvent::Leave and the state
66 machine is in state \c s2, the machine will transition back to state \c
67 s1.
68
69 \snippet examples/statemachine/eventtransitions/main.cpp 4
70
71 Next, the state \c s3 is created. \c s3 will be entered when the button
72 receives an event of type QEvent::MouseButtonPress and the state machine
73 is in state \c s2. When the button receives an event of type
74 QEvent::MouseButtonRelease and the state machine is in state \c s3, the
75 machine will transition back to state \c s2.
76
77 \snippet examples/statemachine/eventtransitions/main.cpp 5
78
79 Finally, the states are added to the machine as top-level states, the
80 initial state is set to be \c s1 ("Outside"), and the machine is started.
81
82 \snippet examples/statemachine/eventtransitions/main.cpp 6
83
84 The main() function constructs a Window object and shows it.
85
86*/
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