Blender Git Loki

Remove context check from constraint and shaderfx edit poll

This mirrors 1f78e86070 from 2018 for mesh modifiers.

Differential Revision: https://developer.blender.org/D7940

Fix T77335: Circle Select tool selects faces perpendicular to the view

Internally the face dots are being drawn when the Edges option of the
overlay (not the selection mode) is disabled.

Outliner: Add property to show the left column

Add a property to show the left column for the activate/mode toggle
buttons. This needs versioning to apply to the default scene.

Fluid: Cleanup internal Python object names

Manta Python objects should not carry the global ID in their names.

Update for latest master, small cleanup and renaming

Fix: selecting should make report active

Cleanup: rename, reuse variables

Changes suggested by Bastien

Merge branch 'master' into modifier-panels-ui

Revert style changes

formatted file with different style by accident

Cleanup: use 'r_' prefix for return arguments in math_color

UI: Drag and Drop Modifiers, Layout Updates

This patch implements the list panel system D7490 for modifiers.
It also moves modifier drawing to a callback in ModifierTypeInfo
in line with the extensible architecture refactoring goal T75724.

This adds a PanelRegister callback and utilities for registering
panels and subpanels. It also adds the callbacks for expansion saving
and drag and drop reordering described in D7490.

These utilities, callbacks, and other common UI elements shared
between modifiers live in MOD_ui_common.c.

Because modifier buttons are now in panels, we can make use of
subpanels for organization. The UI layouts also use the single
column layout style consistently used elsewhere in Blender.
Additionally, the mode-setting buttons are aligned and ordered
consistently with the outliner.

However, the large number of UI changes in this patch may mean
that additional polishing is required in master.

Thanks to William Reynish (@billreynish) who did a fair amount of the
layout work and to Julian Eisel (@Severin) for consistent help.

Differential Revision: https://developer.blender.org/D7498

LibOverride: RNA: Cleanup no more needed property-specific override flags.

GPencil: Fix writing of bGPDcurve struct.

Previously, the bGPDcurve struct itself was not written,
only the data that is referenced inside the struct

Cleanup: use doxy sections for sequencer edit, select

Cleanup: compiler warning

Fix failing assert when dragging panel close to region edge

Forgot to include this change from Julian Eisel @Severin in the
previous commit.

UI: Pan 2D Region When Dragging to Boundary

This adds a modal operator called Edge Pan, which is meant to run invisibly
while something inside a region is being dragged. This patch applies this
to dragging panels, but it can be used elsewhere too.

The speed (which is defined relative to how far the mouse is beyond the
boundary) and delay are easily adjustible. and the speed also increases
smoothly from a start value to a max to make it feel more interactive
and less robotic.

Differential Revision: https://developer.blender.org/D7465

Refactor: use new api in write_customdata

Merge branch 'greasepencil-edit-curve' into soc-2020-greasepencil-curve

GPencil: Fix wrong write_struct code

This is going to be replaced by new code, but it's better keep the right one.