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authorBogDan Vatra <bogdan.vatra.ford@kdab.com>2014-07-21 09:39:06 +0300
committerBogDan Vatra <bogdan@kde.org>2014-07-29 11:27:09 +0200
commitf5edb62cc225c5f85c786f0db8cff424a62f0931 (patch)
tree1463422e1dce70ef385a8224834b861eda7d00d8 /src
parentc67f7c0f0fc34887a4922a269815c460cbe3ccf8 (diff)
Export QAbstractState active property.
It is needed to check if a State is active. Change-Id: I8aa0230b8cd96fb9b95b86b2ce118fe280f9ce97 Reviewed-by: Alan Alpert <aalpert@blackberry.com>
Diffstat (limited to 'src')
-rw-r--r--src/corelib/statemachine/qabstractstate.cpp39
-rw-r--r--src/corelib/statemachine/qabstractstate.h4
-rw-r--r--src/corelib/statemachine/qabstractstate_p.h3
-rw-r--r--src/corelib/statemachine/qstatemachine.cpp5
4 files changed, 49 insertions, 2 deletions
diff --git a/src/corelib/statemachine/qabstractstate.cpp b/src/corelib/statemachine/qabstractstate.cpp
index 62b7e448f5..da1eff9b4c 100644
--- a/src/corelib/statemachine/qabstractstate.cpp
+++ b/src/corelib/statemachine/qabstractstate.cpp
@@ -79,8 +79,17 @@ QT_BEGIN_NAMESPACE
function to perform custom processing when the state is exited.
*/
+/*!
+ \property QAbstractState::active
+ \since 5.4
+
+ \brief the active property of this state. A state is active between
+ entered() and exited() signals.
+*/
+
+
QAbstractStatePrivate::QAbstractStatePrivate(StateType type)
- : stateType(type), isMachine(false), parentState(0)
+ : stateType(type), isMachine(false), active(false), parentState(0)
{
}
@@ -121,11 +130,19 @@ void QAbstractStatePrivate::emitEntered()
{
Q_Q(QAbstractState);
emit q->entered(QAbstractState::QPrivateSignal());
+ if (!active) {
+ active = true;
+ emit q->activeChanged(true);
+ }
}
void QAbstractStatePrivate::emitExited()
{
Q_Q(QAbstractState);
+ if (active) {
+ active = false;
+ emit q->activeChanged(false);
+ }
emit q->exited(QAbstractState::QPrivateSignal());
}
@@ -174,6 +191,17 @@ QStateMachine *QAbstractState::machine() const
}
/*!
+ Returns whether this state is active.
+
+ \sa activeChanged(bool), entered(), exited()
+*/
+bool QAbstractState::active() const
+{
+ Q_D(const QAbstractState);
+ return d->active;
+}
+
+/*!
\fn QAbstractState::onExit(QEvent *event)
This function is called when the state is exited. The given \a event is what
@@ -204,6 +232,15 @@ QStateMachine *QAbstractState::machine() const
*/
/*!
+ \fn QAbstractState::activeChanged(bool active)
+ \since 5.4
+
+ This signal is emitted when the active property is changed.
+
+ \sa QAbstractState::active, entered(), exited()
+*/
+
+/*!
\reimp
*/
bool QAbstractState::event(QEvent *e)
diff --git a/src/corelib/statemachine/qabstractstate.h b/src/corelib/statemachine/qabstractstate.h
index a6ac248b85..4318a5b419 100644
--- a/src/corelib/statemachine/qabstractstate.h
+++ b/src/corelib/statemachine/qabstractstate.h
@@ -56,12 +56,15 @@ class QAbstractStatePrivate;
class Q_CORE_EXPORT QAbstractState : public QObject
{
Q_OBJECT
+ Q_PROPERTY(bool active READ active NOTIFY activeChanged)
public:
~QAbstractState();
QState *parentState() const;
QStateMachine *machine() const;
+ bool active() const;
+
Q_SIGNALS:
void entered(
#if !defined(Q_QDOC)
@@ -73,6 +76,7 @@ Q_SIGNALS:
QPrivateSignal
#endif
);
+ void activeChanged(bool active);
protected:
QAbstractState(QState *parent = 0);
diff --git a/src/corelib/statemachine/qabstractstate_p.h b/src/corelib/statemachine/qabstractstate_p.h
index b0334dfbb5..40431a8fcb 100644
--- a/src/corelib/statemachine/qabstractstate_p.h
+++ b/src/corelib/statemachine/qabstractstate_p.h
@@ -85,8 +85,9 @@ public:
void emitEntered();
void emitExited();
- uint stateType:31;
+ uint stateType:30;
uint isMachine:1;
+ bool active:1;
mutable QState *parentState;
};
diff --git a/src/corelib/statemachine/qstatemachine.cpp b/src/corelib/statemachine/qstatemachine.cpp
index d46fa357ae..a147b85eb7 100644
--- a/src/corelib/statemachine/qstatemachine.cpp
+++ b/src/corelib/statemachine/qstatemachine.cpp
@@ -1369,6 +1369,11 @@ void QStateMachinePrivate::_q_start()
{
Q_Q(QStateMachine);
Q_ASSERT(state == Starting);
+ foreach (QAbstractState *state, configuration) {
+ QAbstractStatePrivate *abstractStatePrivate = QAbstractStatePrivate::get(state);
+ abstractStatePrivate->active = false;
+ emit state->activeChanged(false);
+ }
configuration.clear();
qDeleteAll(internalEventQueue);
internalEventQueue.clear();