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WIP: Create ContainerNode and ContainerGroup

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This commit is contained in:
Lipu Fei 2018-02-13 21:13:44 +01:00
parent e65adc7258
commit d99bacb2d2
2 changed files with 22 additions and 7 deletions
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5
cura/Machines/ContainerGroup.py
View File

@ -1,10 +1,13 @@
from typing import Optional
from PyQt5.Qt import QObject
from cura.Machines.ContainerNode import ContainerNode
class ContainerGroup(QObject):
def __init__(self, parent = None):
super().__init__(parent)
self.node_for_global = None # type: ContainerNode
self.node_for_global = None # type: Optional[ContainerNode]
self.nodes_for_extruders = dict()

24
cura/Machines/ContainerNode.py
View File

@ -3,25 +3,37 @@ from typing import Optional
from collections import OrderedDict
from UM.Logger import Logger
from UM.Settings.InstanceContainer import InstanceContainer
## A metadata / container combination. Use getContainer to get the container corresponding to the metadata
##
# A metadata / container combination. Use getContainer() to get the container corresponding to the metadata.
#
# ContainerNode is a multi-purpose class. It has two main purposes:
# 1. It encapsulates an InstanceContainer. It contains that InstanceContainer's
# - metadata (Always)
# - container (lazy-loaded when needed)
# 2. It also serves as a node in a hierarchical InstanceContainer lookup table/tree.
# This is used in Variant, Material, and Quality Managers.
#
class ContainerNode:
def __init__(self, metadata = None):
__slots__ = ("metadata", "container", "children_map")
def __init__(self, metadata: Optional[dict] = None):
self.metadata = metadata
self.container = None
self.children_map = OrderedDict()
def getChildNode(self, child_key: str) -> Optional["QualityNode"]:
def getChildNode(self, child_key: str) -> Optional["ContainerNode"]:
return self.children_map.get(child_key)
def getContainer(self) -> "InstanceContainer":
if self.metadata is None:
raise RuntimeError("Cannot get container for a QualityNode without metadata")
raise RuntimeError("Cannot get container for a ContainerNode without metadata")
if self.container is None:
container_id = self.metadata["id"]
Logger.log("d", "Lazy-loading container [%s]", container_id)
Logger.log("i", "Lazy-loading container [%s]", container_id)
from UM.Settings.ContainerRegistry import ContainerRegistry
container_list = ContainerRegistry.getInstance().findInstanceContainers(id = container_id)
if not container_list:
@ -30,5 +42,5 @@ class ContainerNode:
return self.container
def __str__(self):
def __str__(self) -> str:
return "ContainerNode[%s]" % self.metadata.get("id")