Tree related helper function TreeNodeToLabelSpacing is missing about imgui-go

[dertseha]

Hello @futjikato , thank you for your message!
They are not intentionally hidden, just not yet required so far.
These are simple functions, you should be able to add them if you like - see for similar functions on how it is done.
For instance, TreeAdvanceToLabelPos() would be similar to TreePop(), so follow its wrapper implementation and essentially copy/paste :)
TreeNodeToLabelSpacing() isn't much different, only add a return value of float32 (and keep in mind, getter names don't have the prefix Get in go.
Take the documentation from imgui.h for the functions and you are good to go :)

[futjikato]

Thanks! Will try to make a PR later today

[futjikato]

As of Juli 2019 TreeAdvanceToLabelPos is deprecated so I will just add TreeNodeToLabelSpacing as that seems to be the replacement.
See: https://github.com/ocornut/imgui/blob/master/imgui.h#L1542

[futjikato]

See PR #46

[dertseha]

Thank you for your contribution! I'll do a release with that soon, I first want to handle the other issue as well.