Slider values

[Dave Cragg]

On 9 Jun 2005, at 08:06, briany at qldlearning.com wrote:

>
> 2) There appears to be an engine bug with the number of ticks  
> displayed
> (at least on MacOS X). There is one too few. For example, for a slider
> with values from 0 to 100, pageInc = 10 and lineIncr = 0 (as  
> described in
> this thread), it displays 10 ticks. There should be 11:
> 0,10,20,30,40,50,60,70,80,90,100, My guess is that somewhere the  
> engine is
> doing something like:
>
> numTicks = (maxValue - minValue)/(pageIncrement - lineIncrement)
>

Or could it be that the thumbSize value is taken into account as it  
would be when working with scrollbars? (Or would it? My brain always  
hurts when doing this kind of arithmetic.) I notice that the  
thumbSize is always set to the pageInc value with sliders. I wondered  
what would happen if the thumbSize was set to 0 and the pageInc to  
10, but I couldn't set them independently. Perhaps this is the problem.

Dave