Currently very limited support for cursor modes is provided (cursor changes when the annotations are being placed). This leads to rather un-intuitive behavior of the application where the user is not informed of the enabled action.

It would be a lot more intuitive to change mouse pointer based on the active function. This would apply for application-level functionality (w/l, zoom, pan) and should also be controllable on the module level (for example, change the mouse pointer based on the active tool in Editor).

Slicer appears to already have mouse modes (https://slicer.readthedocs.io/en/latest/user_guide/user_interface.html#mouse-modes). For example the window/level mouse mode was added as part of d938511.

When using an effect in the Segment Editor module, the editor effect icon is included with the mouse to indicate active selection.

@lassoan Do you have an idea of what remaining items this issue may track? Maybe it would be better to break this into newly written up issues based on the age of this issue originally being written up almost 10 years ago (August 2012)?

Yes, mouse modes are supported. Any further improvement ideas can be tracked in additional tickets.