UI: Add Dimensions to Object Transform panel

This makes the Transform panel complete, so you don't need to open the Sidebar for such a basic concept.

Differential Revision: https://developer.blender.org/D5577

Reviewers: Brecht, Pablo Vazquez

release/scripts/startup/bl_ui/properties_object.py

@@ -97,6 +97,26 @@ class OBJECT_PT_transform(ObjectButtonsPanel, Panel):
         row.prop(ob, "lock_scale", text="", emboss=False, icon='DECORATE_UNLOCKED')
 
 
+class OBJECT_PT_transform_dimensions(ObjectButtonsPanel, Panel):
+    bl_label = "Dimensions"
+    bl_parent_id = "OBJECT_PT_transform"
+    bl_options = {'DEFAULT_CLOSED'}
+
+    @classmethod
+    def poll(cls, context):
+        ob = context.object
+        obj_type = ob.type
+        return obj_type in {'MESH', 'CURVE', 'SURFACE', 'META', 'FONT', 'ARMATURE', 'LATTICE'}
+
+    def draw(self, context):
+        layout = self.layout
+        layout.use_property_split = True
+
+        ob = context.object
+
+        layout.prop(ob, "dimensions", text=" ")
+
+
 class OBJECT_PT_delta_transform(ObjectButtonsPanel, Panel):
     bl_label = "Delta Transform"
     bl_parent_id = "OBJECT_PT_transform"
@@ -407,6 +427,7 @@ class OBJECT_PT_custom_props(ObjectButtonsPanel, PropertyPanel, Panel):
 classes = (
     OBJECT_PT_context_object,
     OBJECT_PT_transform,
+    OBJECT_PT_transform_dimensions,
     OBJECT_PT_delta_transform,
     OBJECT_PT_relations,
     COLLECTION_MT_context_menu,