diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/frameworks-technologies/statemachine.qdoc | 29 | ||||
| -rw-r--r-- | doc/src/platforms/supported-platforms.qdoc | 8 |
2 files changed, 36 insertions, 1 deletions
diff --git a/doc/src/frameworks-technologies/statemachine.qdoc b/doc/src/frameworks-technologies/statemachine.qdoc index 2b137dd..ed8bc85 100644 --- a/doc/src/frameworks-technologies/statemachine.qdoc +++ b/doc/src/frameworks-technologies/statemachine.qdoc @@ -304,6 +304,35 @@ For parallel state groups, the QState::finished() signal is emitted when \e all the child states have entered final states. + \section1 Targetless Transitions + + A transition need not have a target state. A transition without a target can + be triggered the same way as any other transition; the difference is that + when a targetless transition is triggered, it doesn't cause any state + changes. This allows you to react to a signal or event when your machine is + in a certain state, without having to leave that state. Example: + + \code + QStateMachine machine; + QState *s1 = new QState(&machine); + + QPushButton button; + QSignalTransition *trans = new QSignalTransition(&button, SIGNAL(clicked())); + s1->addTransition(trans); + + QMessageBox msgBox; + msgBox.setText("The button was clicked; carry on."); + QObject::connect(trans, SIGNAL(triggered()), &msgBox, SLOT(exec())); + + machine.setInitialState(s1); + \endcode + + The message box will be displayed each time the button is clicked, but the + state machine will remain in its current state (s1). If the target state + were explicitly set to s1, however, s1 would be exited and re-entered each + time (e.g. the QAbstractState::entered() and QAbstractState::exited() + signals would be emitted). + \section1 Events, Transitions and Guards A QStateMachine runs its own event loop. For signal transitions diff --git a/doc/src/platforms/supported-platforms.qdoc b/doc/src/platforms/supported-platforms.qdoc index 61bd779..5f72ce3 100644 --- a/doc/src/platforms/supported-platforms.qdoc +++ b/doc/src/platforms/supported-platforms.qdoc @@ -104,6 +104,12 @@ \table \header \o Platform \o Compilers + \omit + \row \o Windows 7 + \o MSVC 2008 + \endomit + \row \o Apple Mac OS X 10.6 "Snow Leopard" + \o As provided by Apple \row \o Apple Mac OS X 10.4 "Tiger" \o As provided by Apple \row \o HPUXi 11.11 @@ -128,7 +134,7 @@ All platforms not specifically listed above are not supported by Nokia. Nokia does not run its unit test suite or perform any other internal tests on platforms not - listed above. Qt users should note, however, that there may be various open source + listed above. Qt users should note, however, that there may be various open source projects, community users and/or Qt partners who are able to provide assistance with platforms not supported by Nokia. |