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several instances need to be created. - In the ThreeMFWorkspaceReader we need to create some temporal instances of Preferences that makes it not singleton anymore. - The current preferences are kept in the Application class and so all the calls to the preferences are changed to get the preferences from Application. - The method getInstance in Preferences is kept as deprecated since some external plugins.
77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
# Copyright (c) 2016 Ultimaker B.V.
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# Cura is released under the terms of the LGPLv3 or higher.
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from PyQt5.QtCore import QTimer
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from UM.Extension import Extension
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from UM.Application import Application
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from UM.Resources import Resources
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from UM.Logger import Logger
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class AutoSave(Extension):
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def __init__(self):
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super().__init__()
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Application.getInstance().getPreferences().preferenceChanged.connect(self._triggerTimer)
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self._global_stack = None
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Application.getInstance().getPreferences().addPreference("cura/autosave_delay", 1000 * 10)
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self._change_timer = QTimer()
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self._change_timer.setInterval(Application.getInstance().getPreferences().getValue("cura/autosave_delay"))
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self._change_timer.setSingleShot(True)
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self._saving = False
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# At this point, the Application instance has not finished its constructor call yet, so directly using something
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# like Application.getInstance() is not correct. The initialisation now will only gets triggered after the
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# application finishes its start up successfully.
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self._init_timer = QTimer()
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self._init_timer.setInterval(1000)
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self._init_timer.setSingleShot(True)
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self._init_timer.timeout.connect(self.initialize)
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self._init_timer.start()
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def initialize(self):
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# only initialise if the application is created and has started
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from cura.CuraApplication import CuraApplication
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if not CuraApplication.Created:
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self._init_timer.start()
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return
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if not CuraApplication.getInstance().started:
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self._init_timer.start()
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return
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self._change_timer.timeout.connect(self._onTimeout)
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Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
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self._onGlobalStackChanged()
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self._triggerTimer()
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def _triggerTimer(self, *args):
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if not self._saving:
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self._change_timer.start()
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def _onGlobalStackChanged(self):
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if self._global_stack:
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self._global_stack.propertyChanged.disconnect(self._triggerTimer)
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self._global_stack.containersChanged.disconnect(self._triggerTimer)
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self._global_stack = Application.getInstance().getGlobalContainerStack()
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if self._global_stack:
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self._global_stack.propertyChanged.connect(self._triggerTimer)
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self._global_stack.containersChanged.connect(self._triggerTimer)
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def _onTimeout(self):
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self._saving = True # To prevent the save process from triggering another autosave.
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Logger.log("d", "Autosaving preferences, instances and profiles")
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Application.getInstance().saveSettings()
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Application.getInstance().getPreferences().writeToFile(Resources.getStoragePath(Resources.Preferences, Application.getInstance().getApplicationName() + ".cfg"))
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self._saving = False
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