Our connectivity data threads the ratsnest update based on the number of
nets that have changed. If we are only changing one net (the case when
routing) then making a full thread to update the net is pointless
because we wait for the thread to finish before continuing. This spins
that off to an inline lambda for single updates while still making
threads for multiple ratsnest changes.
We want to keep at most 1 thread per 2 connectivity updates but we need
to force that floor to be at least 1 for when there is only 1
connectivity update.
Fixes: lp:1795245
* https://bugs.launchpad.net/kicad/+bug/1795245
OpenMP is not available for macos, so moving to a std::threads
implementation brings platforms into shared code.
This also reduces the OpenMP overhead when computing connectivity and
ratsnests.
Fixes: lp:1780130
* https://bugs.launchpad.net/kicad/+bug/1780130
Also fixes a bug where nets wouldn't get changed because the
pads weren't changed and so the pad nets would propagate and
wipe out the changed nets on the tracks.
Also includes warning dialogs that pad nets will be changed if the
track nets are.
Fixes: lp:1779854
* https://bugs.launchpad.net/kicad/+bug/1779854
Connectivity searches were slow for large, complex boards. This was
partly due to the need to search all lists for possible connections
between anchors.
We remove this requirement by creating an RTree based on items' bounding
boxes similar to the PNS router. Then we get both the colliding items
and search forward/backward to see if there are connections between the
anchors and the other item.
Because we use RTree, we no longer need the maintenance overhead of multiple
item lists and an anchor list in the connectivity class.
Fixes: lp:1701791
* https://bugs.launchpad.net/kicad/+bug/1701791
Fixes: lp:1769408
* https://bugs.launchpad.net/kicad/+bug/1769408
Fixes: lp:1761989
* https://bugs.launchpad.net/kicad/+bug/1761989
- renamed connectivity.[h|cpp] to connectivity_data [.h|.cpp] so that the file name matches the main class name.
- GetNetItems() now returns a vector instead of a list