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# Copyright (c) 2018 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from typing import Optional
from PyQt5.QtCore import pyqtProperty, QObject, pyqtSignal
from .MaterialOutputModel import MaterialOutputModel
class ExtruderConfigurationModel(QObject):
extruderConfigurationChanged = pyqtSignal()
def __init__(self, position: int = -1) -> None:
super().__init__()
self._position = position # type: int
self._material = None # type: Optional[MaterialOutputModel]
self._hotend_id = None # type: Optional[str]
def setPosition(self, position: int) -> None:
self._position = position
@pyqtProperty(int, fset = setPosition, notify = extruderConfigurationChanged)
def position(self) -> int:
return self._position
def setMaterial(self, material: Optional[MaterialOutputModel]) -> None:
if material is None or self._material == material:
return
self._material = material
self.extruderConfigurationChanged.emit()
@pyqtProperty(QObject, fset = setMaterial, notify = extruderConfigurationChanged)
def activeMaterial(self) -> Optional[MaterialOutputModel]:
return self._material
@pyqtProperty(QObject, fset = setMaterial, notify = extruderConfigurationChanged)
def material(self) -> Optional[MaterialOutputModel]:
return self._material
def setHotendID(self, hotend_id: Optional[str]) -> None:
if self._hotend_id != hotend_id:
self._hotend_id = hotend_id
self.extruderConfigurationChanged.emit()
@pyqtProperty(str, fset = setHotendID, notify = extruderConfigurationChanged)
def hotendID(self) -> Optional[str]:
return self._hotend_id
## This method is intended to indicate whether the configuration is valid or not.
# The method checks if the mandatory fields are or not set
# At this moment is always valid since we allow to have empty material and variants.
def isValid(self) -> bool:
return True
def __str__(self) -> str:
message_chunks = []
message_chunks.append("Position: " + str(self._position))
message_chunks.append("-")
message_chunks.append("Material: " + self.activeMaterial.type if self.activeMaterial else "empty")
message_chunks.append("-")
message_chunks.append("HotendID: " + self.hotendID if self.hotendID else "empty")
return " ".join(message_chunks)
def __eq__(self, other) -> bool:
if not isinstance(other, ExtruderConfigurationModel):
return False
if self._position != other.position:
return False
# Empty materials should be ignored for comparison
if self.activeMaterial is not None and other.activeMaterial is not None:
if self.activeMaterial.guid != other.activeMaterial.guid:
if self.activeMaterial.guid != "" and other.activeMaterial.guid != "":
return False
else:
# At this point there is no material, so it doesn't matter what the hotend is.
return True
if self.hotendID != other.hotendID:
return False
return True
# Calculating a hash function using the position of the extruder, the material GUID and the hotend id to check if is
# unique within a set
def __hash__(self):
return hash(self._position) ^ (hash(self._material.guid) if self._material is not None else hash(0)) ^ hash(self._hotend_id)
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