Blender Git Loki

Fix hidden action-zone interaction

Fix for hidden regions becoming active

Fix redraws from non-existing scrollbars

Cursor motion was often causing redraws.

Distance to scrollbars that don't exist in hidden regions
caused redraws (for alpha fading).

Check if scrollbars are used before calculating fade.

Tool System: display tooltip generation error

While this shouldn't ever happen there have been reports
of tooltip creation failure - keep this until the issue is resolved.

Merge branch 'master' into blender2.8

Cleanup: use STRPREFIX for mount point checks

From D3846 by @kostex

Multi-Objects: MBALL_OT_select_similar

Compared to previous implementation, the following has been changed:
* Threshold: is now an absolute value. This allows a comparison with e.g. radii
that are much larger than selected radius. This is also consistent with
`CURVE_OT_select_similar`

* Radius in world space is the average of the radius scaled in x, y and z
directions
* Since MetaBalls are symmetrical, rotation is only considered from 0 to ?/2.
So for example rotations of 90� and -90� are considered equal.
This is also consistent with the way `CURVE_OT_select_similar` works.

Fix/changes from committer (Dalai Felinto):
* Drawing not updating after changes. (see original patch for details).

Reviewers: dfelinto
Differential Revision: https://developer.blender.org/D3895

Icons: add ops.paint.weight_sample

Icons: remove unused vertex paint icons

Also update names to match enum.

Cleanup: style

Multi-Objects: MBALL_OT_select_all

Based on D3893 by Habib Gahbiche.

Merge branch 'master' into blender2.8

Cleanup: use BLI_compiler_compat.h for BLI_INLINE

Cleanup: remove GPENCIL_OT_sculpt_select

This can be done via WM_OT_context_set_enum

Merge branch 'master' into blender2.8

Multi-Objects: CURVE_OT_select_similar

Implemented the following methods:
* SIMCURHAND_TYPE
* SIMCURHAND_RADIUS
* SIMCURHAND_WEIGHT
* SIMCURHAND_DIRECTION

Limits:
* DIRECTION does not support surfaces, because `BKE_nurb_bpoint_calc_normal`
does not work with Nurbs of type `CU_CARDINAL`. This also didn't work prior
to this patch, so we wait until surfaces are properly supported in EditMode.

* Also DIRECTION should take scaling into consideration. We need our own
versions of BKE_nurb_bpoint_calc_normal/bezt.

* Threshold default is too large. Not sure if it's better to change the default
or scale the threshold in code.

Differential Revision: https://developer.blender.org/D3846

Changes from committer (Dalai Felinto):
* Moved nurb_bpoint_direction_worldspace_get/bezt to functions.
* Comments hinting at the mode (direction) that require scaling to be
taken into account - to be addressed by patch creator in a future
patch.

Cleanup: renmae ePaintTexture(Projective) -> 3D

Matches ePaintTexture2D, less verbose.

Paint: paint.brush_select now supports gpencil

Replace grease pencil specific brush select operator.

Paint: update shortcut detection for new logic

UI: Fix hard to see unselected channel name in Graph Editor.

And unify colors with the Dope Sheet.