Custom spinner - fast increment/decrement

Hi,

I am implementing a custom spinner control built using 2 small
buttons and a QLineEdit. Everything is in place and working. One
button increments the linedit, the other decrements it.

I would like to add functionality where if you click and hold
one of the buttons then after 2 secs or so the increment/decrement
speed is much faster.

I have some ideas using a timer and so forth, but perhaps there
is some already available functionality I am not aware of.

Any suggestions?

Many thanks!

Mark

What's wrong with using QSpinBox?

Notice also QAsbtractSpinBox::accelerated.