Workspace: Move engines to workspace and Properties Editor cleanup

Engine is not stored in WorkSpaces. That defines the "context" engine, which
is used for the entire UI.

The engine used for the poll of nodes (add node menu, new nodes when "Use Nodes")
is obtained from context.

Introduce a ViewRender struct for viewport settings that are defined for
workspaces and scene. This struct will be populated with the hand-picked
settings that can be defined per workspace as per the 2.8 design.

* use_scene_settings
* properties editor: workshop + organize context path

Use Scene Settings
==================
For viewport drawing, Workspaces have an option to use the Scene render
settings (F12) instead of the viewport settings.

This way users can quickly preview the final render settings, engine and
View Layer. This will affect all the editors in that workspace, and it will be
clearly indicated in the top-bar.

Properties Editor: Add Workspace and organize context path
==========================================================

We now have the properties of:

Scene, Scene > Layer, Scene > World, Workspace

[Scene | Workspace] > Render Layer > Object
[Scene | Workspace] > Render Layer > Object > Data
(...)

Reviewers: Campbell Barton, Julian Eisel
Differential Revision: https://developer.blender.org/D2842

1 files changed, 9 insertions, 2 deletions

diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index d81a4625144..35d3f4470da 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -749,7 +749,7 @@ typedef struct RenderData {
 	float unit_line_thickness; /* in pixels */
 
 	/* render engine */
-	char engine[32];
+	char engine[32] DNA_DEPRECATED; // XXX deprecated since 2.8
 
 	/* Cycles baking */
 	struct BakeData bake;
@@ -773,6 +773,12 @@ typedef struct RenderData {
 } RenderData;
 
 /* *************************************************************** */
+/* Settings related to viewport drawing/render, only settings used by WorkSpace and Scene. */
+typedef struct ViewRender {
+	char engine_id[32];
+} ViewRender;
+
+/* *************************************************************** */
 /* Render Conversion/Simplfication Settings */
 
 /* control render convert and shading engine */
@@ -883,7 +889,6 @@ typedef struct GameData {
 	/* Scene LoD */
 	short lodflag, pad2;
 	int scehysteresis, pad5;
-
 } GameData;
 
 #define STEREO_NOSTEREO		1
@@ -1699,6 +1704,8 @@ typedef struct Scene {
 	IDProperty *layer_properties;  /* settings to be override by workspaces */
 
 	int pad5[2];
+
+	ViewRender view_render;
 } Scene;
 
 /* **************** RENDERDATA ********************* */