Finished with creating, exporting Presentation Layer. Will start work on importing Presentation layer

src/ifcblenderexport/blenderbim/bim/__init__.py

@@ -205,6 +205,7 @@ if bpy is not None:
         operator.GetNorthOffset,
         operator.AddPresentationLayer,
         operator.AddToPresentationLayer,
+        operator.RemoveFromPresentationLayer,
         operator.RemovePresentationLayer,
         operator.UpdatePresentationLayer,
         operator.AddDrawingStyleAttribute,

src/ifcblenderexport/blenderbim/bim/operator.py

@@ -4286,11 +4286,30 @@ class AddToPresentationLayer(bpy.types.Operator):
     index: bpy.props.IntProperty()
 
     def execute(self, context):
-        name = bpy.context.scene.BIMProperties.presentation_layers[self.index].name
-        bpy.context.active_object.BIMObjectProperties.presentation_layer.name = name
-        bpy.context.active_object.BIMObjectProperties.presentation_layer.name = name
-        elem_name = bpy.context.active_object.BIMObjectProperties.attributes["Name"].string_value
-        print(f'Adding "({self.index} - {name})" to "{elem_name}"')
+        presentation_layer = bpy.context.scene.BIMProperties.presentation_layers[self.index]
+
+        vl = bpy.context.scene.view_layers[presentation_layer.name]
+
+        for el in bpy.context.selected_objects:
+            el.BIMObjectProperties.presentation_layer.name = presentation_layer.name
+            elem_name = el.BIMObjectProperties.attributes["Name"].string_value
+
+            # TODO: I want to add the selected elements to a view layer. But how do you append objects to a view_layer?
+            # vl.objects.append(el)
+
+            print(f'Adding "{elem_name}" to View/Presentation Layer "({self.index} - {presentation_layer.name})"')
+
+        return {"FINISHED"}
+
+
+class RemoveFromPresentationLayer(bpy.types.Operator):
+    bl_idname = "bim.remove_from_presentation_layer"
+    bl_label = "Remove Selected From Presentation Layer"
+
+    def execute(self, context):
+        for el in bpy.context.selected_objects:
+            if el.BIMObjectProperties.presentation_layer.name != '':
+                el.BIMObjectProperties.presentation_layer.name = ''
 
         return {"FINISHED"}
 
@@ -4318,9 +4337,12 @@ class RemovePresentationLayer(bpy.types.Operator):
     bl_label = "Remove Presentation Layer"
     index: bpy.props.IntProperty()
 
-
     def execute(self, context):
+        pl = bpy.context.scene.BIMProperties.presentation_layers[self.index]
+        if pl.name not in bpy.context.scene.view_layers.keys():
+            bpy.context.scene.view_layers.remove(pl.name)
         bpy.context.scene.BIMProperties.presentation_layers.remove(self.index)
+
         return {"FINISHED"}
 
 
@@ -4344,6 +4366,11 @@ class UpdatePresentationLayer(bpy.types.Operator):
         pl.layer_frozen = self.pl_layer_frozen
         pl.layer_blocked = self.pl_layer_blocked
 
+        if pl.name not in bpy.context.scene.view_layers.keys():
+            new = bpy.context.scene.view_layers.new(pl.name)
+            # if pl.layer_on is False:
+            #     bpy.context.scene.view_layers
+
         return {"FINISHED"}
 
 

src/ifcblenderexport/blenderbim/bim/ui.py

@@ -259,11 +259,11 @@ class BIM_PT_object_qto(Panel):
                 row.prop(prop, "name", text="")
                 row.prop(prop, "string_value", text="")
                 if (
-                        "length" in prop.name.lower()
-                        or "width" in prop.name.lower()
-                        or "height" in prop.name.lower()
-                        or "depth" in prop.name.lower()
-                        or "perimeter" in prop.name.lower()
+                    "length" in prop.name.lower()
+                    or "width" in prop.name.lower()
+                    or "height" in prop.name.lower()
+                    or "depth" in prop.name.lower()
+                    or "perimeter" in prop.name.lower()
                 ):
                     op = row.operator("bim.guess_quantity", icon="IPO_EASE_IN_OUT", text="")
                     op.qto_index = index
@@ -710,9 +710,9 @@ class BIM_PT_mesh(Panel):
     @classmethod
     def poll(cls, context):
         return (
-                context.active_object is not None
-                and context.active_object.type == "MESH"
-                and hasattr(context.active_object.data, "BIMMeshProperties")
+            context.active_object is not None
+            and context.active_object.type == "MESH"
+            and hasattr(context.active_object.data, "BIMMeshProperties")
         )
 
     def draw(self, context):
@@ -776,26 +776,21 @@ class BIM_PT_presentation_layer_data(Panel):
     @classmethod
     def poll(cls, context):
         return (
-                context.active_object is not None
-                and context.active_object.type == "MESH"
-                and hasattr(context.active_object.data, "BIMMeshProperties")
+            context.active_object is not None
+            and context.active_object.type == "MESH"
+            and hasattr(context.active_object.data, "BIMMeshProperties")
         )
 
     def draw(self, context):
         if not context.active_object.data:
             return
         layout = self.layout
-        elem_props = context.active_object.data.BIMMeshProperties.presentation_layer
+        elem_props = context.active_object.BIMObjectProperties.presentation_layer
         scene_props = context.scene.BIMProperties
 
         if elem_props.name != "":
-            layout.row(align=True).prop(elem_props, "name")
-            layout.row().prop(elem_props, "description")
-            layout.row().prop(elem_props, "identifier")
-            layout.row().prop(elem_props, "layer_on")
-            layout.row().prop(elem_props, "layer_frozen")
-            layout.row().prop(elem_props, "layer_blocked")
-            layout.row().prop(elem_props, "layer_styles")
+            layout.label(text=f'Object is part of Presentation layer "{elem_props.name}"')
+            layout.row().operator("bim.remove_from_presentation_layer")
         else:
             layout.label(text="Not included in any presentation layer")
 
@@ -985,6 +980,11 @@ class BIM_PT_presentation_layers(Panel):
                 op.index = props.active_presentation_layer_index
                 op.pl_name = pres_layer.name
                 op.pl_description = pres_layer.description
+                op.pl_identifier = pres_layer.identifier
+                op.pl_layer_on = pres_layer.layer_on
+                op.pl_layer_frozen = pres_layer.layer_frozen
+                op.pl_layer_blocked = pres_layer.layer_blocked
+
             else:
                 layout.label(text="Presentation Layer is invalid")