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# Copyright (c) 2019 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from cura.Machines.Models.BaseMaterialsModel import BaseMaterialsModel
import cura.CuraApplication # To listen to changes to the preferences.
## Model that shows the list of favorite materials.
class FavoriteMaterialsModel(BaseMaterialsModel):
def __init__(self, parent = None):
super().__init__(parent)
cura.CuraApplication.CuraApplication.getInstance().getPreferences().preferenceChanged.connect(self._onFavoritesChanged)
self._onChanged()
## Triggered when any preference changes, but only handles it when the list
# of favourites is changed.
def _onFavoritesChanged(self, preference_key: str) -> None:
if preference_key != "cura/favorite_materials":
return
self._onChanged()
def _update(self):
if not self._canUpdate():
return
super()._update()
item_list = []
for root_material_id, container_node in self._available_materials.items():
# Do not include the materials from a to-be-removed package
if bool(container_node.getMetaDataEntry("removed", False)):
continue
# Only add results for favorite materials
if root_material_id not in self._favorite_ids:
continue
item = self._createMaterialItem(root_material_id, container_node)
if item:
item_list.append(item)
# Sort the item list alphabetically by name
item_list = sorted(item_list, key = lambda d: d["brand"].upper())
self.setItems(item_list)
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