How to display progress bar?

[qutron]

In my application I use MVC pattern. Some function is executed in Model class (its CUDA function). I want to display progress of this function in View class. Classes communicate through signals and slots.
Is there any way to do it?

[wysota]

What exactly are you having problems with?

[qutron]

I don't know how to do it :)

[wysota]

Do you have any general concept of how it should work? First implement your progress indicator as a number showing percentage of work done and then substitute drawing the number with drawing the progress bar.