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, 13 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_layer.c b/source/blender/makesrna/intern/rna_layer.c
index fbefeb4413f..82082ec6022 100644
--- a/source/blender/makesrna/intern/rna_layer.c
+++ b/source/blender/makesrna/intern/rna_layer.c
@@ -289,6 +289,19 @@ static void rna_def_layer_collection(BlenderRNA *brna)
 	                         "in the view layer");
 	RNA_def_property_update(prop, NC_SCENE | ND_LAYER, "rna_LayerCollection_use_update");
 
+	prop = RNA_def_property(srna, "hide_viewport", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", LAYER_COLLECTION_RESTRICT_VIEW);
+	RNA_def_property_override_flag(prop, PROPOVERRIDE_OVERRIDABLE_STATIC);
+	RNA_def_property_ui_icon(prop, ICON_HIDE_OFF, -1);
+	RNA_def_property_ui_text(prop, "Disable Viewport", "Disable collection in viewport for this view layer");
+	RNA_def_property_update(prop, NC_SCENE | ND_LAYER_CONTENT, "rna_LayerCollection_use_update");
+
+	prop = RNA_def_property(srna, "is_visible", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "runtime_flag", LAYER_COLLECTION_VISIBLE);
+	RNA_def_property_clear_flag(prop, PROP_EDITABLE);
+	RNA_def_property_ui_text(prop, "Visible",
+	                         "Whether this collection is visible, take into account the collection parent");
+
 	func = RNA_def_function(srna, "has_objects", "rna_LayerCollection_has_objects");
 	RNA_def_function_ui_description(func, "");
 	RNA_def_function_return(func, RNA_def_boolean(func, "result", 0, "", ""));