I would like to make 2 feature requests.
qwt provide useful widgets, for instance new sliders, but I would like to have a new one. This slider is a range slider.
Instead of having only one handle we would have two handles. So one can select 2 values (a range) instead of one. The behavior would be:
- within slider min/max range user can select a sub-range playing with one of the handles.
- user can also move both limits/handles by dragging the area between the 2 handles.
I give you an example in the attached .pdf file to show how it could be (the 3 first slides).
The second feature request is to use this slider directly in the qwtplot axis. Example provided in the pdf file show how it is done in the tool I'm using for seismic display.
In the last slides (4 to 8) I show you how this slider is nested in the axis. So user can perform zooming/area selection playing with this slider around the x and y axis.
I hope my slides are clear enough.
Thank you very much by advance.