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Remove superfluous singleton pattern

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The qmlRegisterSingletonType function already makes sure it is a singleton.

Contributes to issues CURA-340 and CURA-1278.
This commit is contained in:
Ghostkeeper 2016-06-06 14:32:20 +02:00
parent 7950dfaa07
commit 77c918a0a7
1 changed files with 0 additions and 13 deletions
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13
cura/ExtruderManager.py
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@ -15,9 +15,6 @@ import UM.Signal #To notify other components of changes in the extruders.
# and makes sure that whenever the machine is swapped, this list is kept up to # and makes sure that whenever the machine is swapped, this list is kept up to
# date. It also contains and updates the setting stacks for the extruders. # date. It also contains and updates the setting stacks for the extruders.
class ExtruderManager(QObject): class ExtruderManager(QObject):
## The singleton instance of this manager.
__instance = None
## Signal to notify other components when the list of extruders changes. ## Signal to notify other components when the list of extruders changes.
extrudersChanged = UM.Signal() extrudersChanged = UM.Signal()
@ -33,16 +30,6 @@ class ExtruderManager(QObject):
self._repopulate() self._repopulate()
## Gets an instance of this extruder manager.
#
# If an instance was already created, the old instance is returned. This
# implements the singleton pattern.
@classmethod
def getInstance(cls):
if not cls.__instance:
cls.__instance = ExtruderManager()
return cls.__instance
## Creates an iterator over the extruders in this manager. ## Creates an iterator over the extruders in this manager.
# #
# \return An iterator over the extruders in this manager. # \return An iterator over the extruders in this manager.