Annotation Tool Hover

[PaulHax]

Hover popup appears 250ms after cursor rests on invisible vtkWidgetRepresentation.

Current look:

Old look:

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[floryst]

• Maybe we should switch from a bounding box test to picking the closest tool. I cannot see the label for a polygon inside another polygon.
• Having the label be associated with the mouse position seems a little distracting. What do you think about a fixed offset from the tool's bounding box?

[PaulHax]

Maybe we should switch from a bounding box test to picking the closest tool. I cannot see the label for a polygon inside another polygon.

I'll try getting distances to each line to sort among tools the pointer is inside. Getting fancy. First pass I had earler was to show popover when hovering over handles or lines, same target area as context menu. Was probably going to do that approach that for Ruler, as bounding box could be a bit much for the diagonal ruler? Maybe we go with that hardware picker approach for all tools for now and refine our "2D picking" approach later?

Having the label be associated with the mouse position seems a little distracting. What do you think about a fixed offset from the tool's bounding box?

Argeed. Can't escape that needy popover. 🤣 Did not do the offset from bounding box cuz if camera is zoomed in and annotation bounds is out of frame, won't see popover. Was common situation in catheter based modality project i worked on. How about a debouce on mouse movement before showing popover?

[PaulHax]

Thanks for checking on this early. Good points!

[floryst]

Looks good so far! I presume you are going to update this for the rectangle and ruler?

[floryst]

One other thing: we will do some user testing to see how people feel about the delay in popup. I don't have a better idea at the moment.

[PaulHax]

Added hover support to Ruler and Rectangle.

Yes, hover feel is not great. But do need something to get "Label" of annnotation ASAP. Alternatives:

• Could enable hover popup with toggle switch. (inspect mode?) Maybe no deboounce if we did this.
• Inspect tool?
• Right click context menu shows label type.

[floryst]

I like the right click context menu approach the most, especially since I have some half-written code snippet somewhere that allows you to switch the label of an annotation via the context menu.

The select tool I plan on working on can be the inspect tool you're referring to. In select mode, hovering can show the label (debounced or not).

[floryst]

Overall, LGTM. The icon spacing for the context menu seems kind of big, which makes entries without icons (e.g. the polygon tool's "Delete Point") look out of place.

[PaulHax]

Added blank icon to fix "Delete Point".

Added a "Select" tool that enables the hover popup.

Included usePopperState, thanks!

[floryst]

LGTM!