QEventTransition doesn't work with QEvent::focusIn/Out

Donnie

Here's a code snippet from the ctor of my custom widget

txt_ = new QLineEdit(this);
lbl_ = new QLabel("Enter a message...", this);

QVBoxLayout *vBoxLayout = new QVBoxLayout;
vBoxLayout->addSpacing(lbl_->height());
vBoxLayout->addWidget(txt_);
setLayout(vBoxLayout);

QStateMachine *sm = new QStateMachine;

QState *stateFocusedOut = new QState(sm);
QRect rect1(250, 250, 100, 30);
stateFocusedOut->assignProperty(lbl_, "geometry", rect1);
sm->setInitialState(stateFocusedOut);

QState *stateFocusedIn = new QState(sm);
QRect rect2(0, 0, 100, 30);
stateFocusedIn->assignProperty(lbl_, "geometry", rect2);

QEventTransition *trans1 = new QEventTransition(txt_, QEvent::FocusIn, stateFocusedIn);
stateFocusedOut->addTransition(trans1);

QEventTransition *trans2 = new QEventTransition(txt_, QEvent::FocusOut, stateFocusedOut);
stateFocusedIn->addTransition(trans2);

QPropertyAnimation *anim1 = new QPropertyAnimation(lbl_, "geometry");
trans1->addAnimation(anim1);

QPropertyAnimation *anim2 = new QPropertyAnimation(lbl_, "geometry");
trans2->addAnimation(anim2);

sm->start();

And the animations doesn't work when I use events for the state transitions. But if I change QEventTransition to QSignalTransition by replacing the events with some arbitrary QLineEdit signal - everything works.

I tried subclassing QLineEdit and emitting custom signals on focus in/out events, but it seemed like it didn't help.

What might be the cause?

SGaist

Hi,

If memory serves well, QLineEdit should of have the focus policy to strong focus which should be what you need. Did you check that this is the case ?