Blender Git Loki

GPencil: Fix unreported autolock layers using Dopesheet

When select a layer in Dopesheet, the autolock layer was not working.

Now the Dopesheet code calls the function for autolock. Also some code cleanup to move the logic to new function.

Drivers: support decomposing rotation into swing followed by twist.

In order to correctly drive corrective shape keys from a freely
rotating organic joint it is very often found necessary to
decompose the rotation into separate bending and twisting
motions. This type of decomposition cannot be reproduced by
any Euler order or a single quaternion.

Instead this is done by using a helper bone with a Damped Track
constraint aimed at the tail of the control to pick up the bending,
and its helper child with Copy Transforms to separate the twist.

Requiring two additional bones to drive a shape key or a correction
bone seems inconvenient, so this implements the necessary math as new
options in the recently introduced Rotation Mode dropdown of the
Transform Channel driver variable type. The data is also accessible
as a Transformation constraint input.

The output is in the form of Quaternion-derived 'pseudo-angles',
which for `Swing and Y Twist` would represent the following:

* W: true bend angle, independent of bend direction.
* Y: true twist angle.
* X, Z: pseudo-angles representing the proportion of bending around X/Z.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D5651

Merge branch 'master' into functions

Transform: support snap to children with 'Affect Parents'

Resolves T69398

Cleanup: expand checks for selection when snapping

Adding extra checks here was getting unreadable,
expand to allow for easier to follow logic.

Fix buildbot unsuccessfully trying to update Blender repository for branches

EEVEE: Fix broken bump regression

Regression introduced by 7f4a2fc437cf9a6decbda152bd7d36ce7a08929f

Cleanup: unused flag, spelling

Merge branch 'master' into functions

quiet warning

deduplicate vertex weights input code

UI: File Browser Design Overhaul

This is a general redesign of the File Browser GUI and interaction
methods. For screenshots, check patch D5601.

Main changes in short:
* File Browser as floating window
* New layout of regions
* Popovers for view and filter options
* Vertical list view with interactive column header
* New and updated icons
* Keymap consistency fixes
* Many tweaks and fixes to the drawing of views

----

General:
* The file browser now opens as temporary floating window. It closes on
Esc. The header is hidden then.
* When the file browser is opened as regular editor, the header remains
visible.
* All file browser regions are now defined in Python (the button
layout).
* Adjusted related operator UI names.

Keymap:
Keymap is now consistent with other list-based views in Blender, such as
the Outliner.
* Left click to select, double-click to open
* Right-click context menus
* Shift-click to fill selection
* Ctrl-click to extend selection

Operator options:
These previously overlapped with the source list, which caused numerous
issues with resizing and presenting many settings in a small panel area.
It was also generally inconsistent with Blender.
* Moved to new sidebar, which can easily be shown or hidden using a
prominent Options toggle.
* IO operators have new layouts to match this new sidebar, using
sub-panels. This will have to be committed separately (Add-on
repository).
* If operators want to show the options by default, they have the option
to do so (see `WM_FILESEL_SHOW_PROPS`, `hide_props_region`), otherwise
they are hidden by default.

General Layout:
The layout has been changed to be simpler, more standard, and fits
better in with Blender 2.8.
* More conventional layout (file path at top, file name at the bottom,
execute/cancel buttons in bottom right).
* Use of popovers to group controls, and allow for more descriptive
naming.
* Search box is always live now, just like Outliner.

Views:
* Date Modified column combines both date and time, also uses user
friendly strings for recent dates (i.e. "Yesterday", "Today").
* Details columns (file size, modification date/time) are now toggleable
for all display types, they are not hardcoded per display type.
* File sizes now show as B, KB, MB, ... rather than B, KiB, MiB, ? They
are now also calculated using base 10 of course.
* Option to sort in inverse order.

Vertical List View:
* This view now used a much simpler single vertical list with columns
for information.
* Users can click on the headers of these columns to order by that
category, and click again to reverse the ordering.

Icons:
* Updated icons by Jendrzych, with better centering.
* Files and folders have new icons in Icon view.
* Both files and folders have reworked superimposed icons that show
users the file/folder type.
* 3D file documents correctly use the 3d file icon, which was unused
previously.
* Workspaces now show their icon on Link/Append - also when listed in
the Outliner.

Minor Python-API breakage:
* `bpy.types.FileSelectParams.display_type`: `LIST_SHORT` and
`LIST_LONG` are replaced by `LIST_VERTICAL` and `LIST_HORIZONTAL`.

Removes the feature where directories would automatically be created if
they are entered into the file path text button, but don't exist. We
were not sure if users use it enough to keep it. We can definitely bring
it back.

----

//Combined effort by @billreynish, @harley, @jendrzych, my university
colleague Brian Meisenheimer and myself.//

Differential Revision: https://developer.blender.org/D5601

Reviewers: Brecht, Bastien

initial action context chaining

fix finding execute sockets

Fix selection engine checks

- Don't use vertex selection in texture paint mode.
- Don't allow mixing vertex & face flags in vert/weight paint modes.

Merge branch 'master' into filebrowser_redesign

Fix T69424: Weight paint sample doesn't work

new Surface Weights input node

Fix crash saving files with preview saving enabled

Fix buildbot Python executable not found on Windows