bool QDeclarativeStateGroupPrivate::updateAutoState()
{
Q_Q(QDeclarativeStateGroup);
if (!componentComplete)
return false;
bool revert = false;
for (int ii = 0; ii < states.count(); ++ii) {
QDeclarativeState *state = states.at(ii);
if (state->isWhenKnown()) {
if (state->isNamed()) {
if (state->when() && state->when()->evaluate().toBool()) {
if (stateChangeDebug())
qWarning() << "Setting auto state due to:"
<< state->when()->expression();
if (currentState != state->name()) {
q->setState(state->name());
return true;
} else {
return false;
}
} else if (state->name() == currentState) {
revert = true;
}
}
}
}
if (revert) {
bool rv = !currentState.isEmpty();
q->setState(QString());
return rv;
} else {
return false;
}
}
void QQuickStateGroupPrivate::setCurrentStateInternal(const QString &state,
bool ignoreTrans)
{
Q_Q(QQuickStateGroup);
if (!componentComplete) {
currentState = state;
return;
}
if (applyingState) {
qmlInfo(q) << "Can't apply a state change as part of a state definition.";
return;
}
applyingState = true;
QQuickTransition *transition = ignoreTrans ? 0 : findTransition(currentState, state);
if (stateChangeDebug()) {
qWarning() << this << "Changing state. From" << currentState << ". To" << state;
if (transition)
qWarning() << " using transition" << transition->fromState()
<< transition->toState();
}
QQuickState *oldState = 0;
if (!currentState.isEmpty()) {
for (int ii = 0; ii < states.count(); ++ii) {
if (states.at(ii)->name() == currentState) {
oldState = states.at(ii);
break;
}
}
}
currentState = state;
emit q->stateChanged(currentState);
QQuickState *newState = 0;
for (int ii = 0; ii < states.count(); ++ii) {
if (states.at(ii)->name() == currentState) {
newState = states.at(ii);
break;
}
}
if (oldState == 0 || newState == 0) {
if (!nullState) {
nullState = new QQuickState;
QQml_setParent_noEvent(nullState, q);
nullState->setStateGroup(q);
}
if (!oldState) oldState = nullState;
if (!newState) newState = nullState;
}
newState->apply(transition, oldState);
applyingState = false; //### consider removing this (don't allow state changes in transition)
}
void QDeclarativeStateGroupPrivate::setCurrentStateInternal(const QString &state,
bool ignoreTrans)
{
Q_Q(QDeclarativeStateGroup);
if (!componentComplete) {
currentState = state;
return;
}
if (applyingState) {
qmlInfo(q) << "Can't apply a state change as part of a state definition.";
return;
}
applyingState = true;
QDeclarativeTransition *transition = (ignoreTrans || ignoreTrans) ? 0 : findTransition(currentState, state);
if (stateChangeDebug()) {
qWarning() << this << "Changing state. From" << currentState << ". To" << state;
if (transition)
qWarning() << " using transition" << transition->fromState()
<< transition->toState();
}
QDeclarativeState *oldState = 0;
if (!currentState.isEmpty()) {
for (int ii = 0; ii < states.count(); ++ii) {
if (states.at(ii)->name() == currentState) {
oldState = states.at(ii);
break;
}
}
}
currentState = state;
emit q->stateChanged(currentState);
QDeclarativeState *newState = 0;
for (int ii = 0; ii < states.count(); ++ii) {
if (states.at(ii)->name() == currentState) {
newState = states.at(ii);
break;
}
}
if (oldState == 0 || newState == 0) {
if (!nullState) { nullState = new QDeclarativeState; QDeclarative_setParent_noEvent(nullState, q); }
if (!oldState) oldState = nullState;
if (!newState) newState = nullState;
}
newState->apply(q, transition, oldState);
applyingState = false;
if (!transition)
static_cast<QDeclarativeStatePrivate*>(QObjectPrivate::get(newState))->complete();
}
