Cura/cura/Settings/SetObjectExtruderOperation.py
2020-05-28 17:13:44 +02:00

30 lines
1.1 KiB
Python

# Copyright (c) 2017 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from UM.Scene.SceneNode import SceneNode
from UM.Operations.Operation import Operation
from cura.Settings.SettingOverrideDecorator import SettingOverrideDecorator
class SetObjectExtruderOperation(Operation):
"""Simple operation to set the extruder a certain object should be printed with."""
def __init__(self, node: SceneNode, extruder_id: str) -> None:
self._node = node
self._extruder_id = extruder_id
self._previous_extruder_id = None
self._decorator_added = False
def undo(self):
if self._previous_extruder_id:
self._node.callDecoration("setActiveExtruder", self._previous_extruder_id)
def redo(self):
stack = self._node.callDecoration("getStack") #Don't try to get the active extruder since it may be None anyway.
if not stack:
self._node.addDecorator(SettingOverrideDecorator())
self._previous_extruder_id = self._node.callDecoration("getActiveExtruder")
self._node.callDecoration("setActiveExtruder", self._extruder_id)