//------------------------------------------------------------------------------
bool ctkFileDialog::eventFilter(QObject *obj, QEvent *event)
{
Q_D(ctkFileDialog);
QPushButton* button = d->acceptButton();
QDialogButtonBox* dialogButtonBox = qobject_cast<QDialogButtonBox*>(obj);
if (obj == button && event->type() == QEvent::EnabledChange &&
!d->IgnoreEvent)
{
d->IgnoreEvent = true;
d->AcceptButtonState = button->isEnabledTo(qobject_cast<QWidget*>(button->parent()));
button->setEnabled(d->AcceptButtonEnable && d->AcceptButtonState);
d->IgnoreEvent = false;
}
else if (obj == button && event->type() == QEvent::Destroy)
{
// The accept button is deleted probably because setAcceptMode() is being called.
// observe the parent to check when the accept button is added back
obj->parent()->installEventFilter(this);
}
else if (dialogButtonBox && event->type() == QEvent::ChildAdded)
{
dynamic_cast<QChildEvent*>(event)->child()->installEventFilter(this);
}
return QFileDialog::eventFilter(obj, event);
}
//------------------------------------------------------------------------------
void ctkFileDialogPrivate::observeAcceptButton()
{
Q_Q(ctkFileDialog);
QPushButton* button = this->acceptButton();
Q_ASSERT(button);
this->AcceptButtonState =
button->isEnabledTo(qobject_cast<QWidget*>(button->parent()));
// TODO: catching the event of the enable state is not enough, if the user
// double click on the file, the dialog will be accepted, that event should
// be intercepted as well
button->installEventFilter(q);
}
//------------------------------------------------------------------------------
bool ctkFileDialog::eventFilter(QObject *obj, QEvent *event)
{
Q_D(ctkFileDialog);
QPushButton* button = d->acceptButton();
if (obj == button && event->type() == QEvent::EnabledChange &&
!d->IgnoreEvent)
{
d->IgnoreEvent = true;
d->AcceptButtonState = button->isEnabledTo(qobject_cast<QWidget*>(button->parent()));
button->setEnabled(d->AcceptButtonEnable && d->AcceptButtonState);
d->IgnoreEvent = false;
}
return QFileDialog::eventFilter(obj, event);
}
//------------------------------------------------------------------------------
void ctkFileDialogPrivate::init()
{
Q_Q(ctkFileDialog);
QPushButton* button = this->acceptButton();
Q_ASSERT(button);
this->AcceptButtonState =
button->isEnabledTo(qobject_cast<QWidget*>(button->parent()));
// TODO: catching the event of the enable state is not enough, if the user
// double click on the file, the dialog will be accepted, that event should
// be intercepted as well
button->installEventFilter(q);
QObject::connect(this->listView()->selectionModel(),
SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
q, SLOT(onSelectionChanged()));
}