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bd714f947a
So if we ever change the order of initialisation this stays working. Contributes to issue CURA-6600.
49 lines
No EOL
2 KiB
Python
49 lines
No EOL
2 KiB
Python
# Copyright (c) 2019 Ultimaker B.V.
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# Cura is released under the terms of the LGPLv3 or higher.
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from UM.Logger import Logger
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from UM.Settings.ContainerRegistry import ContainerRegistry # To listen to containers being added.
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from UM.Settings.DefinitionContainer import DefinitionContainer
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from UM.Settings.Interfaces import ContainerInterface
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from cura.Machines.MachineNode import MachineNode
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from typing import Dict
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## This class contains a look-up tree for which containers are available at
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# which stages of configuration.
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#
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# The tree starts at the machine definitions. For every distinct definition
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# there will be one machine node here.
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class ContainerTree:
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__instance = None
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@classmethod
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def getInstance(cls):
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if cls.__instance is None:
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cls.__instance = ContainerTree()
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return cls.__instance
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def __init__(self) -> None:
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self.machines = {} # type: Dict[str, MachineNode] # Mapping from definition ID to machine nodes.
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container_registry = ContainerRegistry.getInstance()
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container_registry.containerAdded.connect(self._machineAdded)
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self._loadAll()
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## Builds the initial container tree.
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def _loadAll(self):
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Logger.log("i", "Building container tree.")
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all_stacks = ContainerRegistry.getInstance().findContainerStacks()
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for stack in all_stacks:
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definition_id = stack.definition.getId()
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if definition_id not in self.machines:
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self.machines[definition_id] = MachineNode(definition_id)
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## When a printer gets added, we need to build up the tree for that container.
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def _machineAdded(self, definition_container: ContainerInterface):
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if not isinstance(definition_container, DefinitionContainer):
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return # Not our concern.
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definition_id = definition_container.getId()
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if definition_id in self.machines:
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return # Already have this definition ID.
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self.machines[definition_id] = MachineNode(definition_id) |