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47 lines
2.1 KiB
Python
47 lines
2.1 KiB
Python
# Copyright (c) 2016 Ultimaker B.V.
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# Cura is released under the terms of the AGPLv3 or higher.
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from UM.Scene.SceneNodeDecorator import SceneNodeDecorator
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from UM.Settings.ContainerStack import ContainerStack
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from UM.Settings.InstanceContainer import InstanceContainer
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from UM.Settings.ContainerRegistry import ContainerRegistry
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from UM.Application import Application
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import copy
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## A decorator that adds a container stack to a Node. This stack should be queried for all settings regarding
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# the linked node. The Stack in question will refer to the global stack (so that settings that are not defined by
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# this stack still resolve.
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class SettingOverrideDecorator(SceneNodeDecorator):
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def __init__(self):
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super().__init__()
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self._stack = ContainerStack(stack_id = id(self))
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self._stack.setDirty(False) # This stack does not need to be saved.
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self._instance = InstanceContainer(container_id = "SettingOverrideInstanceContainer")
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self._stack.addContainer(self._instance)
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self._stack.propertyChanged.connect(self._onSettingChanged)
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ContainerRegistry.getInstance().addContainer(self._stack)
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Application.getInstance().globalContainerStackChanged.connect(self._onGlobalContainerStackChanged)
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self._onGlobalContainerStackChanged()
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def __deepcopy__(self, memo):
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## Create a fresh decorator object
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deep_copy = SettingOverrideDecorator()
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## Copy the instance
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deep_copy._instance = copy.deepcopy(self._instance, memo)
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## Set the copied instance as the first (and only) instance container of the stack.
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deep_copy._stack.replaceContainer(0, deep_copy._instance)
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return deep_copy
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def _onSettingChanged(self, instance, property):
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if property == "value": # Only reslice if the value has changed.
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Application.getInstance().getBackend().forceSlice()
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def _onGlobalContainerStackChanged(self):
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## Ensure that the next stack is always the global stack.
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self._stack.setNextStack(Application.getInstance().getGlobalContainerStack())
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def getStack(self):
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return self._stack |