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

6 files changed, 16 insertions, 7 deletions

diff --git a/source/blender/editors/transform/CMakeLists.txt b/source/blender/editors/transform/CMakeLists.txt
index fda15545ead..f38f6c064b8 100644
--- a/source/blender/editors/transform/CMakeLists.txt
+++ b/source/blender/editors/transform/CMakeLists.txt
@@ -29,6 +29,7 @@ set(INC
 	../../ikplugin
 	../../makesdna
 	../../makesrna
+	../../render/extern/include
 	../../windowmanager
 	../../depsgraph
 	../../../../intern/guardedalloc
diff --git a/source/blender/editors/transform/transform.h b/source/blender/editors/transform/transform.h
index 92eb31aabe6..60ad61e3475 100644
--- a/source/blender/editors/transform/transform.h
+++ b/source/blender/editors/transform/transform.h
@@ -37,6 +37,8 @@
 #include "ED_numinput.h"
 #include "ED_view3d.h"
 
+#include "RE_engine.h"
+
 #include "DNA_listBase.h"
 
 /* ************************** Types ***************************** */
@@ -60,6 +62,7 @@ struct wmTimer;
 struct ARegion;
 struct ReportList;
 struct EditBone;
+struct RenderEngineType;
 struct SnapObjectContext;
 
 /* transinfo->redraw */
@@ -467,6 +470,7 @@ typedef struct TransInfo {
 	struct ARegion	*ar;
 	struct Scene	*scene;
 	struct SceneLayer *scene_layer;
+	struct RenderEngineType *engine;
 	struct ToolSettings *settings;
 	struct wmTimer *animtimer;
 	struct wmKeyMap *keymap;  /* so we can do lookups for header text */
diff --git a/source/blender/editors/transform/transform_conversions.c b/source/blender/editors/transform/transform_conversions.c
index 166a5805fa1..b04767724ea 100644
--- a/source/blender/editors/transform/transform_conversions.c
+++ b/source/blender/editors/transform/transform_conversions.c
@@ -2485,7 +2485,7 @@ static void createTransEditVerts(TransInfo *t)
 	int *island_vert_map = NULL;
 
 	DEG_evaluation_context_init_from_scene(&eval_ctx,
-	                                       t->scene, t->scene_layer,
+	                                       t->scene, t->scene_layer, t->engine,
 	                                       DAG_EVAL_VIEWPORT);
 
 	/* Even for translation this is needed because of island-orientation, see: T51651. */
@@ -5557,7 +5557,7 @@ static void set_trans_object_base_flags(TransInfo *t)
 	/* handle pending update events, otherwise they got copied below */
 	EvaluationContext eval_ctx;
 	DEG_evaluation_context_init_from_scene(&eval_ctx,
-	                                       t->scene, t->scene_layer,
+	                                       t->scene, t->scene_layer, t->engine,
 	                                       DAG_EVAL_VIEWPORT);
 	for (base = sl->object_bases.first; base; base = base->next) {
 		if (base->object->recalc & OB_RECALC_ALL) {
diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index 2bed1dd28f2..5081b65c215 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -105,6 +105,8 @@
 #include "WM_types.h"
 #include "WM_api.h"
 
+#include "RE_engine.h"
+
 #include "UI_resources.h"
 #include "UI_view2d.h"
 
@@ -1122,10 +1124,12 @@ void initTransInfo(bContext *C, TransInfo *t, wmOperator *op, const wmEvent *eve
 	Object *obedit = CTX_data_edit_object(C);
 	Object *ob = CTX_data_active_object(C);
 	bGPdata *gpd = CTX_data_gpencil_data(C);
+	RenderEngineType *engine = CTX_data_engine(C);
 	PropertyRNA *prop;
 	
 	t->scene = sce;
 	t->scene_layer = sl;
+	t->engine = engine;
 	t->sa = sa;
 	t->ar = ar;
 	t->obedit = obedit;
diff --git a/source/blender/editors/transform/transform_snap.c b/source/blender/editors/transform/transform_snap.c
index e3ea8a51c6d..2654887d45c 100644
--- a/source/blender/editors/transform/transform_snap.c
+++ b/source/blender/editors/transform/transform_snap.c
@@ -585,7 +585,7 @@ static void initSnappingMode(TransInfo *t)
 	if (t->spacetype == SPACE_VIEW3D) {
 		if (t->tsnap.object_context == NULL) {
 			t->tsnap.object_context = ED_transform_snap_object_context_create_view3d(
-			        G.main, t->scene, t->scene_layer, 0,
+			        G.main, t->scene, t->scene_layer, t->engine, 0,
 			        t->ar, t->view);
 
 			ED_transform_snap_object_context_set_editmesh_callbacks(
diff --git a/source/blender/editors/transform/transform_snap_object.c b/source/blender/editors/transform/transform_snap_object.c
index e72bfa40480..9d60cac48f0 100644
--- a/source/blender/editors/transform/transform_snap_object.c
+++ b/source/blender/editors/transform/transform_snap_object.c
@@ -2096,7 +2096,7 @@ static bool snapObjectsRay(
  * \{ */
 
 SnapObjectContext *ED_transform_snap_object_context_create(
-        Main *bmain, Scene *scene, SceneLayer *sl, int flag)
+        Main *bmain, Scene *scene, SceneLayer *sl, RenderEngineType *engine, int flag)
 {
 	SnapObjectContext *sctx = MEM_callocN(sizeof(*sctx), __func__);
 
@@ -2105,7 +2105,7 @@ SnapObjectContext *ED_transform_snap_object_context_create(
 	sctx->bmain = bmain;
 	sctx->scene = scene;
 
-	DEG_evaluation_context_init_from_scene(&sctx->eval_ctx, scene, sl, DAG_EVAL_VIEWPORT);
+	DEG_evaluation_context_init_from_scene(&sctx->eval_ctx, scene, sl, engine, DAG_EVAL_VIEWPORT);
 
 	sctx->cache.object_map = BLI_ghash_ptr_new(__func__);
 	sctx->cache.mem_arena = BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, __func__);
@@ -2114,11 +2114,11 @@ SnapObjectContext *ED_transform_snap_object_context_create(
 }
 
 SnapObjectContext *ED_transform_snap_object_context_create_view3d(
-        Main *bmain, Scene *scene, SceneLayer *sl, int flag,
+        Main *bmain, Scene *scene, SceneLayer *sl, RenderEngineType *engine, int flag,
         /* extra args for view3d */
         const ARegion *ar, const View3D *v3d)
 {
-	SnapObjectContext *sctx = ED_transform_snap_object_context_create(bmain, scene, sl, flag);
+	SnapObjectContext *sctx = ED_transform_snap_object_context_create(bmain, scene, sl, engine, flag);
 
 	sctx->use_v3d = true;
 	sctx->v3d_data.ar = ar;