eventFilter and clicking inside QSpinBox

[T4ng10r]

I need to handle with 30 QLabels and QSpinBox stored in QGridLayout. I've created them and put in vector, after that I've placed them in proper grid cells.
Now - when user clicked inside QSpinBox (in edit field) I'm sending info to format QLabel connected with that spinbox. But

if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::FocusIn )

if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::FocusIn )

To copy to clipboard, switch view to plain text mode 

is fulfilled every time cursor stays inside, not only WHEN user placed him there FIRST time.

event->type() == QEvent::MouseButtonPress

event->type() == QEvent::MouseButtonPress

To copy to clipboard, switch view to plain text mode 

is true only when user clicked on spinbox arrows.
Am I missing some events?