Blender Git Loki

small cleanup

fix bits not being set in Node::tag_modified

Cleanup: Follow C++ code style for new Outliner building code

* Use C++17 nested namespaces.
* Use `_` suffix rather than prefix for private member variables.

Also: Simplify code visually in `tree_view.cc` with `using namespace`.

fix regression making some tests fail

Transform: New feature to set a custom 'Snap With'

Ref T66484

Basically the idea is to use a modal keymap to change the current Base Point
defined by `Snap With` by one that can be chosen through snapping.

{F9170047}

I prefer to avoid using any of the modifier buttons (Shift, Alt, Ctrl) as
they can be used in the future to allow navigation during transform operations.

So the shortcut chosen in this patch is the {key B}.

Note:
This feature is not enabled if the scene snap option is Incremental or grid.

Maniphest Tasks: T66484

Differential Revision: https://developer.blender.org/D9415

Merge remote-tracking branch 'origin/master' into lanpr-under-gp

LineArt: Fix transparency mask lost in angle splitting process

LineArt: "Match" checkbox put on top of mask bits.

Cleanup: General cleanup of Outliner Blender File display mode building

* Turn functions into member functions (makes API for a type more obvious &
local, allows implicitly sharing data through member variables, enables order
independend definition of functions, allows more natural language for
function names because of the obvious context).
* Prefer references over pointers for passing by reference (makes clear that
NULL is not a valid value and that the current scope is not the owner).
* Reduce indentation levels, use `continue` in loops to ensure preconditions
are met.
* Add asserts for sanity checks.

Merge branch 'master' into xr-actions-D9124

Cleanup: importer: const, range-based for-loops, etc.

Cleanup: exporter: const, clang-tidy.

Cleanup: exporter: use range-based for loops.

Merge branch 'master' into soc-2020-io-performance

UI Code Quality: Convert Outliner Blender File mode to new tree buiding design

See https://developer.blender.org/D9499.

Also:
* Add `space_outliner/tree/common.cc` for functions shared between display
modes.
* Had to add a cast to `ListBaseWrapper` to make it work with ID lists.
* Cleanup: Remove internal `Tree` alias for `ListBase`. That was more confusing
than helpful.

Cleanup: Put Outliner C++ namespace into `blender::ed` namespace, add comments

Also remove unnecessary forward declaration.

Cleanup: Clang-format.

Noise: fix uninitialized variable warning.

Mistake in 74188e65028d

Cleanup: use `std::make_unique` instead of new.

Cleanup: Importer: NULL to nullptr.