Because of jumping between modes "bim.set_arc_index" doesn't remove newly created vertex groups on undo which resulted in error in decorator.
File "\blenderbim\bim\module\model\decorator.py", line 134, in __call__
if group_index in vertex[deform_layer]:
AttributeError: BMElem[key]: invalid key, must be a BMLayerItem
Switching from EDIT mode acts like canceling editing which seems intuitive.
Now it's also possible to add similar thing to other use of decorators - beware of the possible Blender bug - mentioned it in `ProfileDecorator.install description`
Added this change to editing of profiles, extrusion axis, roof and railing paths, extrusion profiles.
How it works:
1) You add Roof Modifier to some object that represents roof footprint.
2) Start editing path (Shift-E in BIM Tool).
3) Then you can select any edge and specify roof angles manually for each edge (Shift-R in BIM Tool)
to make side gabled you just need to set angle to 90 degrees. Preview will update automatically. You can set it back to 0 for angle to be defined automatically.
Some other changes:
- refactored decorator.py, in decorator now it's possible to supply some custom bmesh function that will be called on redraw, decorator now also can draw faces;
- changed colors for selected verts / edges to less bright, now it in more contrast to selected verts / edges color and seems much more readable;
1) Leaders text decorator wasn't changed after adding support for multiple literals
2) added drawing data update on toggling viewport annotations - so user would see correct values right away; also fixed similar thing on updating product
1) changed first ifc saving handler from save_pre to save_post so that in the situation when you just created with .blend file and started ifc project on save dialog would suggest the same name for the .ifc file and for .blend file (previously it was always suggesting ".ifc" and you had to type it in manually).
2) suggested default ifc project named changed from `<blend_filename>.blend.ifc` to `<blend_filename>.ifc` for simplicity.
PS save_pre didn't really work anyway - by the time "save ifc dialog" file was invoked and appeared .blend file was already saved anyway.
Andrej730
