# Copyright (c) 2019 Ultimaker B.V. # Cura is released under the terms of the LGPLv3 or higher. from typing import Optional, Dict, Set from PyQt5.QtCore import Qt, pyqtSignal, pyqtProperty from UM.Qt.ListModel import ListModel from cura.Machines.MaterialNode import MaterialNode from cura.Settings.CuraContainerRegistry import CuraContainerRegistry ## This is the base model class for GenericMaterialsModel and MaterialBrandsModel. # Those 2 models are used by the material drop down menu to show generic materials and branded materials separately. # The extruder position defined here is being used to bound a menu to the correct extruder. This is used in the top # bar menu "Settings" -> "Extruder nr" -> "Material" -> this menu class BaseMaterialsModel(ListModel): extruderPositionChanged = pyqtSignal() enabledChanged = pyqtSignal() def __init__(self, parent = None): super().__init__(parent) from cura.CuraApplication import CuraApplication self._application = CuraApplication.getInstance() # Make these managers available to all material models self._container_registry = self._application.getInstance().getContainerRegistry() self._machine_manager = self._application.getMachineManager() self._material_manager = self._application.getMaterialManager() # Update the stack and the model data when the machine changes self._machine_manager.globalContainerChanged.connect(self._updateExtruderStack) # Update this model when switching machines self._machine_manager.activeStackChanged.connect(self._update) self.addRoleName(Qt.UserRole + 1, "root_material_id") self.addRoleName(Qt.UserRole + 2, "id") self.addRoleName(Qt.UserRole + 3, "GUID") self.addRoleName(Qt.UserRole + 4, "name") self.addRoleName(Qt.UserRole + 5, "brand") self.addRoleName(Qt.UserRole + 6, "description") self.addRoleName(Qt.UserRole + 7, "material") self.addRoleName(Qt.UserRole + 8, "color_name") self.addRoleName(Qt.UserRole + 9, "color_code") self.addRoleName(Qt.UserRole + 10, "density") self.addRoleName(Qt.UserRole + 11, "diameter") self.addRoleName(Qt.UserRole + 12, "approximate_diameter") self.addRoleName(Qt.UserRole + 13, "adhesion_info") self.addRoleName(Qt.UserRole + 14, "is_read_only") self.addRoleName(Qt.UserRole + 15, "container_node") self.addRoleName(Qt.UserRole + 16, "is_favorite") self._extruder_position = 0 self._extruder_stack = None self._available_materials = None # type: Optional[Dict[str, MaterialNode]] self._favorite_ids = set() # type: Set[str] self._enabled = True def _updateExtruderStack(self): global_stack = self._machine_manager.activeMachine if global_stack is None: return if self._extruder_stack is not None: self._extruder_stack.pyqtContainersChanged.disconnect(self._update) self._extruder_stack.approximateMaterialDiameterChanged.disconnect(self._update) self._extruder_stack = global_stack.extruders.get(str(self._extruder_position)) if self._extruder_stack is not None: self._extruder_stack.pyqtContainersChanged.connect(self._update) self._extruder_stack.approximateMaterialDiameterChanged.connect(self._update) # Force update the model when the extruder stack changes self._update() def setExtruderPosition(self, position: int): if self._extruder_stack is None or self._extruder_position != position: self._extruder_position = position self._updateExtruderStack() self.extruderPositionChanged.emit() @pyqtProperty(int, fset = setExtruderPosition, notify = extruderPositionChanged) def extruderPosition(self) -> int: return self._extruder_position def setEnabled(self, enabled): if self._enabled != enabled: self._enabled = enabled if self._enabled: # ensure the data is there again. self._update() self.enabledChanged.emit() @pyqtProperty(bool, fset=setEnabled, notify=enabledChanged) def enabled(self): return self._enabled ## This is an abstract method that needs to be implemented by the specific # models themselves. def _update(self): pass ## This method is used by all material models in the beginning of the # _update() method in order to prevent errors. It's the same in all models # so it's placed here for easy access. def _canUpdate(self): global_stack = self._machine_manager.activeMachine if global_stack is None or not self._enabled: return False extruder_position = str(self._extruder_position) if extruder_position not in global_stack.extruders: return False extruder_stack = global_stack.extruders[extruder_position] self._available_materials = self._material_manager.getAvailableMaterialsForMachineExtruder(global_stack, extruder_stack) if self._available_materials is None: return False return True ## This is another convenience function which is shared by all material # models so it's put here to avoid having so much duplicated code. def _createMaterialItem(self, root_material_id, container_node): metadata_list = CuraContainerRegistry.getInstance().findContainersMetadata(id = container_node.container_id) if not metadata_list: return None metadata = metadata_list[0] item = { "root_material_id": root_material_id, "id": metadata["id"], "container_id": metadata["id"], # TODO: Remove duplicate in material manager qml "GUID": metadata["GUID"], "name": metadata["name"], "brand": metadata["brand"], "description": metadata["description"], "material": metadata["material"], "color_name": metadata["color_name"], "color_code": metadata.get("color_code", ""), "density": metadata.get("properties", {}).get("density", ""), "diameter": metadata.get("properties", {}).get("diameter", ""), "approximate_diameter": metadata["approximate_diameter"], "adhesion_info": metadata["adhesion_info"], "is_read_only": self._container_registry.isReadOnly(metadata["id"]), "container_node": container_node, "is_favorite": root_material_id in self._favorite_ids } return item