Per view-layer collection visibility

[re-committing]

We still control this in the viewport collections visibility menu. But
now we are actually changing the visibility of the collections, not of
the objects.

If a collection is indirectly invisible (because one of its parents are
invisible) we gray it out.

Also if you click directly in the collection names, it "isolates" the
collection by hiding all collections, and showing the direct parents and
all the children of the selected collection.

Development Note:

Right now I'm excluding the hidden collections from the depsgraph.
Thus the need for tagging relations to update.

If this proves to be too slow, we can change.

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/editors/object/object_edit.c b/source/blender/editors/object/object_edit.c
index 49358679dc6..686c03b3e16 100644
--- a/source/blender/editors/object/object_edit.c
+++ b/source/blender/editors/object/object_edit.c
@@ -285,6 +285,7 @@ static int object_hide_collection_exec(bContext *C, wmOperator *op)
 
 	BKE_layer_collection_set_visible(scene, view_layer, lc, extend);
 
+	DEG_relations_tag_update(CTX_data_main(C));
 	DEG_id_tag_update(&scene->id, ID_RECALC_BASE_FLAGS);
 	WM_event_add_notifier(C, NC_SCENE | ND_OB_SELECT, scene);
 
@@ -358,7 +359,7 @@ static int object_hide_collection_invoke(bContext *C, wmOperator *op, const wmEv
 void OBJECT_OT_hide_collection(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Hide Objects By Collection";
+	ot->name = "Hide Collection";
 	ot->description = "Show only objects in collection (Shift to extend)";
 	ot->idname = "OBJECT_OT_hide_collection";