Brain GUI modernization (Phase 3)

[payamsash]

Reference issue (if any)

Phase 3 of #14042 and following #14062

What does this implement/fix?

• make collapsable docks in the GUI

• add alpha and silhouette (only linewidth) options to gui

Additional information

test is written by Claude.

[payamsash]

this PR is on top of main (just to have smaller diff), so when #14062 is merged, I'll resolve the conflicts

[wmvanvliet]

Could you remind me what the use case was for the contour and alpha sliders? There's always a tradeoff between usefulness and complexity.

Now that we can collapse part of the interface, perhaps some panels can start in collapsed state, so that the initial interface is simpler.

Could the collapsing work with a rotating triangle like we have come to expect in GUIs? I know this is currently not built-in, it would have to be a new control.

[payamsash]

Could you remind me what the use case was for the contour and alpha sliders? There's always a tradeoff between usefulness and complexity.

I think its ok to have both for visual adjustments and also for some volumetric activity display like this, I actually wanted to also add surf and cortex options as well in this box (but for the next PRs) ... do you think its too much?

Now that we can collapse part of the interface, perhaps some panels can start in collapsed state, so that the initial interface is simpler.

Which ones would you suggest? maybe all except Playback?, also I have in mind to add another dock for atlases/parcels.

Could the collapsing work with a rotating triangle like we have come to expect in GUIs? I know this is currently not built-in, it would have to be a new control.

agree.

[wmvanvliet]

I think its ok to have both for visual adjustments and also for some volumetric activity display

Agreed, for volumetric it is indeed useful. But perhaps this would be a good candidate to start collapsed. I think "orientation", "surface" and "trace" could start collapsed.