toggle_weight_paint.py

@@ -19,26 +19,7 @@ def get_armature_of_meshob(obj: bpy.types.Object):
 		if m.type=='ARMATURE':
 			return m.object
 
-class EASYWEIGHT_OT_toggle_weight_paint(bpy.types.Operator):
+def enter_wp(context) -> bool:
-	"""Toggle weight paint mode properly with a single operator. """
-	bl_idname = "object.weight_paint_toggle"
-	bl_label = "Toggle Weight Paint Mode"
-	bl_options = {'REGISTER', 'UNDO'}
-
-	# local_view: bpy.props.BoolProperty(
-	# 	name		 = "Local View"
-	# 	,description = "Enter Local view with the mesh and armature"
-	# )
-	
-	@classmethod
-	def poll(cls, context):
-		ob = context.object
-		return ob and ob.type=='MESH'
-
-	def draw(self, context):
-		self.layout.operator(EASYWEIGHT_OT_toggle_weight_paint.bl_idname)
-
-	def enter_wp(self, context):
 	"""Enter weight paint mode, change the necessary settings, and save their
 	original states so they can be restored when leaving wp mode."""
 
@@ -86,7 +67,7 @@ class EASYWEIGHT_OT_toggle_weight_paint(bpy.types.Operator):
 	### ENSURING ARMATURE VISIBILITY
 	armature = get_armature_of_meshob(obj)
 	if not armature:
-			return {'FINISHED'}
+		return
 	# Save all object visibility related info so it can be restored later.
 	wpt['arm_enabled'] = armature.hide_viewport
 	wpt['arm_hide'] = armature.hide_get()
@@ -104,16 +85,14 @@ class EASYWEIGHT_OT_toggle_weight_paint(bpy.types.Operator):
 		context.scene.collection.objects.link(armature)
 		wpt['arm_coll_assigned'] = True
 
-		if not armature.visible_get():
+	if armature.visible_get():
-			self.report({'WARNING'}, "Failed to make the armature visible. Curse you, Blender!!!")
-		else:
 		context.view_layer.objects.active = armature
 		bpy.ops.object.mode_set(mode='POSE')
 	
 	context.view_layer.objects.active = obj
-		return {'FINISHED'}
+	return armature.visible_get()
 
-	def leave_wp(self, context):
+def leave_wp(context):
 	"""Leave weight paint mode, then find, restore, and delete the data
 	that was stored about shading settings in enter_wp()."""
 
@@ -153,7 +132,7 @@ class EASYWEIGHT_OT_toggle_weight_paint(bpy.types.Operator):
 
 	armature = get_armature_of_meshob(obj)
 	if not armature:
-			return {'FINISHED'}
+		return
 	# If an armature was un-hidden, hide it again.
 	armature.hide_viewport = wpt_as_dict['arm_enabled']
 	armature.hide_set(wpt_as_dict['arm_hide'])
@@ -167,15 +146,33 @@ class EASYWEIGHT_OT_toggle_weight_paint(bpy.types.Operator):
 	if wpt_as_dict['arm_coll_assigned']:
 		context.scene.collection.objects.unlink(armature)
 
-		return {'FINISHED'}
+	return
+class EASYWEIGHT_OT_toggle_weight_paint(bpy.types.Operator):
+	"""Toggle weight paint mode properly with a single operator. """
+	bl_idname = "object.weight_paint_toggle"
+	bl_label = "Toggle Weight Paint Mode"
+	bl_options = {'REGISTER', 'UNDO'}
+	
+	@classmethod
+	def poll(cls, context):
+		ob = context.object
+		return ob and ob.type=='MESH'
+
+	def draw(self, context):
+		self.layout.operator(EASYWEIGHT_OT_toggle_weight_paint.bl_idname)
 
 	def execute(self, context):
 		obj = context.object
 
 		if obj.mode != 'WEIGHT_PAINT':
-			return self.enter_wp(context)
+			armature_visible = enter_wp(context)
+			if armature_visible == False:
+				# This should never happen, but it also doesn't break anything.
+				self.report({'WARNING'}, "Could not make Armature visible.")
+			return {'FINISHED'}
 		else:
-			return self.leave_wp(context)
+			leave_wp(context)
+			return {'FINISHED'}
 
 class EASYWEIGHT_PT_Debug(bpy.types.Panel):
 	"""For debugging the Toggle Weight Paint operator."""