Cura/cura/Machines/ContainerTree.py
Ghostkeeper 65b1a43e88
Load tree when all metadata has been loaded
This should build up the tree initially.

Contributes to issue CURA-6600.
2019-08-06 09:16:41 +02:00

40 lines
1.8 KiB
Python

# Copyright (c) 2019 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from UM.Settings.ContainerRegistry import ContainerRegistry # To listen to containers being added.
from UM.Settings.DefinitionContainer import DefinitionContainer
from UM.Settings.Interfaces import ContainerInterface
from cura.Machines.MachineNode import MachineNode
from typing import Dict
## This class contains a look-up tree for which containers are available at
# which stages of configuration.
#
# The tree starts at the machine definitions. For every distinct definition
# there will be one machine node here.
class ContainerTree:
def __init__(self) -> None:
self.machines = {} # type: Dict[str, MachineNode] # Mapping from definition ID to machine nodes.
container_registry = ContainerRegistry.getInstance()
container_registry.allMetadataLoaded.connect(self._reloadAll)
container_registry.containerAdded.connect(self._machineAdded)
self._reloadAll()
## (Re)builds the initial container tree.
def _reloadAll(self):
all_stacks = ContainerRegistry.getInstance().findContainerStacks()
for stack in all_stacks:
definition_id = stack.definition.getId()
if definition_id not in self.machines:
self.machines[definition_id] = MachineNode(definition_id)
## When a printer gets added, we need to build up the tree for that container.
def _machineAdded(self, definition_container: ContainerInterface):
if not isinstance(definition_container, DefinitionContainer):
return # Not our concern.
definition_id = definition_container.getId()
if definition_id in self.machines:
return # Already have this definition ID.
self.machines[definition_id] = MachineNode(definition_id)