Blender Git Loki

Make WorkSpace and WorkSpaceLayout local DNA structs

Wanted to try this to avoid having (almost) global scope of DNA structs, instead, everything should be handled through BKE_workspace API.

File read/write support

Move screen drawing functions into new screen_draw.c

Move scene utils into own file (and improve API)

Previously they were kinda mixed with screen utils.

Make window-level scene switching work

Update RNA and UI scripts to use scene from window

Main work to move active scene into window

Added scene as argument to area/region listeners. It's only used in a really few cases though, I might instead do a lookup.

Rename notifier category: NC_SCREEN -> NC_WORKSPACE

Fix crash when duplicating window

Manage screen creation within workspace-layout editor API

Move ED_workspace_layout API into own file

Fix crash when deleting layouts

Behavior change: The layout we switch to when deleting another one now has to meet similar requirements as the one we choose for cycling layouts (Ctrl+Arrow left/right). E.g. no hidden screen will be activated.

Fix crash when toggling area fullscreen

Make layout cycling work (Ctrl+Arrow Left/Right)

Make changing layout within workspace work

Fix mistake in last (non-merge) commit

Merge branch 'blender2.8' into workspaces

Make layout template only show layouts of current workspace

Mainly had to do some changes to template_ID to make this work. It now supports setting a custom RNA collection to search the ID's in.

Make duplicating workspaces work

Fixes for changing layout with workspace

Changing workspace should now change to the active layout of the workspace just fine.
Screen/workspace changing is still a bit hacky since we can't do it during normal handlers. Not sure how we could do it instead, for now I'm just copying hacks from screen changing.