Blender Git Loki

Manipulators: removed unused structure member

Update default workspaces.blend fixing crashes after editor removals

* Fixes crashes in versioning code for the removed editor types (see d8c719d8d8149de2d49)
* Removes 'Game Logic' workspace.

It still only contains workspaces converted from old screen-layouts, proper
defaults are on the TODO.

Replace old Timelines and Logic Editors with new Dopesheet (Timeline mode)

Timelines and Logic Editors are gone. So far they were simply replaced by broken
Info Editors, now they are replaced by Dopesheets in the new Timeline mode.

We reuse ScrArea.butspacetype to temporarily store the space-type identifier of
the deprecated editor (see 9db492de6dd07). That way we can identify it in
versioning code and replace it nicely.
Action editor creation needs a scene to set the scrolling based on frame range.
Active screen-layouts use the active scene of the window they are displayed in.
Inactive screens simply use the first scene in the main data base.
Note that inactive editors don't need version patching, readfile.c converts them
to SPACE_EMPTY already, so users can't activate them.

Files saved since the editors were removed will still be broken.
Workspace config files saved before this will also crash (will update default
one in followup commit).

Cleanup: Get rid of ScrArea.butspacetype syncing with ScrArea.spacetype

The only real reason we need `butspacetype` is while switching areas, where we
need to delay the actual switch to the RNA _update callback since only there we
can access context.
So instead of trying to sync it with `spacetype`, only set while needed and
unset it afterwards (as in set to `SPACE_EMPTY`).

This should also allow us to re-use `butspacetype` in versioning code when
trying to read removed editors. It'll store the space type value of the removed
editor which we can then use on versioning.

For backwards compatibility, we store `butspacetype` with the value of
`spacetype`.

UI: draw arrow for popover

UI: Editor outline color themable

Note: Not bothering with doversion, re-using 280, 10 bump.

UI: support for center popovers over buttons

Embossing for the areas only, with unified color

We bring back embossing however only for areas.
We use the same color for the corners.

UI: number button arrows appear on hover, highlight clickable areas.

UI: make button roundness themeable.

Fix missing filter size in Eevee film panel.

Cycles: rename engine to just "Cycles" instead of "Cycles Render" in the UI.

UI: Remove Embossing

We are using a different visual system to tell the areas apart.
There is no longer need for embossing.

Action Zone: No need for drawing (the triangles)

Now that we can easily tell the corners apart, there is no need to
a specific action zone draw here (cursor still changes, naturally).

Action Zone: Enable them in the four corners

UI: Draw round corners between the editors

This makes easier to distinguish between different editors
(as oppose to an editor and its regions).

Note action zones look a bit strange with this. I recommend we do next:
* Make sure all 4 corners can be used as action zones.
* Remove their drawing code (or show them only on mouse hover).

UI: Move ui_draw_anti_tria to UI_interface.h

Using extern makes too easy to get a crash if the original
function definition changed.

UI: Remove hard-code + add comment for aa triangles

Merge branch 'master' into blender2.8

Cleanup: UI naming