Teleport: mirror port labels, attempt 3

[mgunyho]

On mouse-over, the teleport output label will show the label of the connected port on the other end.

This is an alternative to #11 and #12. Compared to those, this implementation overrides the port label tooltip implementation instead of messing with the port label. This is cleaner, avoids problems with looping, and ensures that the displayed label is always up to date, even if the source port has a dynamically updated label.

[mgunyho]

@EnigmaCurry sorry for still bothering you, but could you take a look at this version and see if you can make it segfault?

I'm pretty happy with the result, even though I had to copy-paste a bunch of implementation details from the Rack sources, which is a bit hacky. But at least it works well.

[EnigmaCurry]

Looks great!

• The tooltip text is great: Teleporting from EnigmaCurry Transport Play Gate output. Nice touch!
• Labels are always up to date.
• No crashes I can find. Reloading the patch works well.
• Seems like there is a nominal CPU usage increase. Beforehand the output module was around 0.6% usage and now it sits around 1.1% usage. Not bad.
• Since this only changes the tooltip of the output module, one drawback is that it doesn't show the teleported name on the final destination, only the port number eg. From LittleUtils Teleport Out: port 5 output. Usually you place the teleport out right next to where it needs to go, so this is a pretty minor nitpick.
• Awesome!

[mgunyho]

Seems like there is a nominal CPU usage increase

This shouldn't really be the case, the tooltip is rendered by the GUI thread, which is completely separate from the audio thread which is what the CPU meter measures AFAIK.

one drawback is that it doesn't show the teleported name on the final destination, only the port number

Yeah, that is true. But I don't think there's a way to avoid problems with looping in that case.

Thanks a lot for the feedback! I think I'll go with this version. I'll make a new release soon.