Orthographic: Selection rectangle grabs all atoms

[ghutchis]

At least on a Mac, if I use the selection rectangle, all atoms seem to be selected.

I can confirm this behavior does not exist in 1.94, but does exist in 1.95 and afterwards.

I'm not sure the bug is in selectiontool.cpp - it might be in the call to m_renderer->hits() instead.

[ghutchis]

Aha, git bisect finds that it derives from #709 b30e202 (adding the layer system)

Weird bug - if I create multiple layers (e.g., select hydrogens, move them to Layer 2) it seems to work. (At least some/most of the time?)

[ghutchis]

More importantly, this shows up with orthographic projection, not perspective.

So the problem likely comes from the screen projection.

[avo-bot]

This issue has been mentioned on Avogadro Discussion. There might be relevant details there:

https://discuss.avogadro.cc/t/selection-by-drag-rectangle-doesnt-work-in-orthographic-projection/5542/2