I did my best (I'm a programming novice) to understand the code and to improve the IFC export for slabs.
ATM for every slab all contour edges are exported as IFCSTRUCTURALCURVEMEMBER except the last closing one (see forum thread https://forum.freecadweb.org/viewtopic.php?f=39&t=54286).
This changes aim to also add the last closing edge for slabs.
In these two cases, the project's file will not contain the latest
changes, so returning as if the save is complete is incorrect and can
lead to data loss (such as on app quit).
In a few locations, python objects are used without checking if they
exist and are non-null, which throws missing attribute exceptions. The
fix is to simply check first.
This will essentially not update the tooltip when an action is checked as it isn't suitable
As example, view DrawStyle command where the group tooltip is better than the selected action tooltip
Only UserEditMode is implemented in this commit, should be pushed to DrawStyle and maybe other after merge
the PR fixes the following things:
- change the way centerlines between 2 lines are calculated. The current implementation leads to many bugs and even crashes (e.g. when the 2 selected lines are parallel ones of a square). There are different forum threads from the last 1.5 years.
The new endpoint line sorting is the one described here: https://forum.freecadweb.org/viewtopic.php?f=35&start=20&t=44255&sid=989a668890f954c13ef81e4a04ee6912#p501179
- as consequence the erroneous and misleading line end flipping can go and is removed (only used internally)
- when creating a new centerline, you see it immediately
- when creating a new or editing an existing centerline and press Cancel, the creation/editing is aborted
- fix crash when the 2 selected lines are bot horizontal and one tries to create a vertical centerline
- fix crash when changing the orientation of an existing centerline and the result would be invalid
- cleanup the code a bit
In some circumstances, FileExceptions are constructed empty, then have a
filename assigned to them, but the error message in these scenarios is
left as the default "unknown" one, which is sometimes shown to users.
This change fixes that case to be consistent with instances that are
constructed with the filename.
Preference Packs are collections of preferences that can be applied en
mass to the user's current setup. Any preference that can be stored in
user.cfg can be stored in a preference pack, and they are designed to be
easy to distribute.
Support is also added for saving a subset of current preferences into a
new preference pack in order to facilitate easy creation of new
"themes", etc.
