Blender Git Loki

New python submodule `mathutils.interpolate` for various mesh interpolation and weighting methods.

This module will contain mirrored functions for calculating and applying
weights for points on a mesh. This includes barycentric and UV weighting
and possibly more advanced global weighting such as harmonic weights.

The naming should follow this scheme:
<type>_{2d,3d}_{calc,apply}

e.g.
poly_2d_calc
poly_2d_apply
uv_3d_calc
...

Reviewers: campbellbarton

Differential Revision: https://developer.blender.org/D939

Merge branch 'wiggly-widgets' into gooseberry

Deactivate irritating shapekey widget while it's still under
development.

Hook up facemap property to bones.

A bone using a facemap will not be displayed at all, rather it will use
the facemap of the mesh as an interaction area. The facemap still does
nothing since it's not yet hooked up to the customdata and widget code.
That will come next.

Merge branch 'master' into gooseberry

Merge branch 'wiggly-widgets' into gooseberry

Support for custom cursors for widgets.

They are set when a highlighted widget intersection is detected and on
area level.

There's a discussion about using owners and a stack or array for cursors
but that needs some more thought and design.

More changes to overdrop transform operator.

* Calling key press confirms
* Change name of operator accordingly.

Merge branch 'wiggly-widgets' into gooseberry

Gooseberry request draw sequencer backdrop on -top- of everything.

Due to this we -obviously- rename this to overdrop

I am not sure if others would agree here, but it's pretty safe to do
this on a branch first. Rationale is that it's much nicer to work on
full screen with this.

Merge branch 'wiggly-widgets' into gooseberry

Minor adjustments to the cage transform widget and sequencer operator.

* Bigger scale handler for widget.
* Operator has description on area
* Cancelling resets position.

Merge branch 'master' into gooseberry

Merge branch 'wiggly-widgets' into gooseberry

Conflicts:
source/blender/blenloader/intern/versioning_270.c
source/blender/windowmanager/WM_api.h
source/blender/windowmanager/intern/wm_event_system.c

Merge branch 'master' into wiggly-widgets

Conflicts:
source/blender/makesrna/intern/rna_space.c
source/blender/windowmanager/WM_api.h
source/blender/windowmanager/intern/wm_event_system.c

Sequencer operator that uses widgets and controls the placement of the
backdrop is now functional.

The widget could communicate with the sequencer properties directly, but
here we set it to control the operator properties as a demonstration.

After some minor stress testing, time to give this to gooseberry team.

Fix some registration issues, also add scale property for sequencer
backdrop widget.

Something draws now in sequencer when we register the widget for the
operator.

Yet more refactoring:

Areas support more than one widgetmap - will be useful to partition area
in different transform regions like data, pixel, 3D (will be done in a
separate refactor).

Also get rid of the context widget hack in favour of adding the
widgetmap handler to the operator handler itself, so handling will
be unified when the widget controls a property or spawns an operator

Merge branch 'master' into gooseberry