QSpinBox Timer Issue

[bcollie]

Hi,

I have an application that executes a calculation on QSpinBox::valueChanged.
This calculation takes around half a second to perform.

When a user clicks the step up button, two valueChanged events occur.

After some digging, this appears to be because the calculation takes a bit too long, causing the timer to fire. When valueChanged and the calc finishes, the spinbox receives a timerEvent followed by a mouseReleaseEvent.

Since the user did a simple click, so releasing the the mouse before the timer was due to fire, I see this as a qt bug. Surely qt should send events in chronological order, ie. mouseReleaseEvent followed by timerEvent.

Thanks
Bruce

[mcosta]

for long time calculation I suggest you to use QRunnable.

For me (Qt 4.7.3) the slot is called once. Are you sure you don't connected twice?