[Qt-interest] QSlider modification

[Andre Somers]

Hi,

I am running into a little problem.
I am trying to create an application where I have a set of sliders. 
These sliders are interdependent. The total value of all the sliders is 
bound to a maximum. That means that once that maximum is reached, one of 
the sliders first has to be moved down before any of the others can be 
moved up further.

At first, i thought I could do that by just setting the maximum value, 
but that would of course result in a very weird UI. The sliders would 
rescale, and that is not what I want. I want to sliders to express the 
relative values, and so I need them all with the same scale. Still, I do 
want to block them move beyond a certain threshold value, that may 
change during operation.

Can anyone suggest an approach for this? I fear I'm looking at a 
potentially quite nasty subclassing of QSlider or reimplemeting of it 
using QStyle, but perhaps someone can suggest a clever shortcut?

André