Use node parent when calculating offset

[iamdoron]

Hi,

I added some transforms to the examples as a quick way to see it's working. When calculating the tooltip position, the parent of the node should be taken as an offset, and not the target.

This is not a complete solution, because the node can be within multiple chain-of-parents with transforms (which have to be accumulated), but at least now if the target is inside a parent with transform the tooltip is in the right position.

[wwayne]

I think we can't use node to replace the target here, because the logic doesn't make sense. And I can find another test case that makes this out of work... I'm still thinking about it and trying to figure out a more clear logic.

Anyway, thanks for your PR and exploration, I'm closing this.

[wwayne]

After spending almost one hour figuring out the logic behind this, the only thing I found is you are right, thanks 👍