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[Segmentation] UL Threshold range changes when draged towards borders of scale.
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The checklist says "The whole threshold range can be changed by moving the “blue” bar between the two slider-marker."

If one moves it towards the borders of the scale, @m167k reported the following: "dragging the bar to the far left/right leads to a narrower bar (e.g. from 0 to x). May be better to keep the range fixed, even if I slide further than the extreme values."

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kleina created this task.
s434n added a subscriber: s434n.

I looked a bit into this. As far as I can tell, there is no such functionality available in the ctkRangeWidget we are using, or the QT classes it is based on. Achieving the proposed behavior would require a large rework. Since the demand for this is very low, it won't be done in the foreseeable future.