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Added handling for key not found in extruder map

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This commit is contained in:
Jaime van Kessel 2016-10-25 11:02:41 +02:00
parent 3e3e6e6b1b
commit ecbe4b264a
1 changed files with 5 additions and 2 deletions
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7
cura/Settings/ExtruderManager.py
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@ -50,8 +50,11 @@ class ExtruderManager(QObject):
@pyqtProperty(int, notify = extrudersChanged) @pyqtProperty(int, notify = extrudersChanged)
def extruderCount(self): def extruderCount(self):
if not UM.Application.getInstance().getGlobalContainerStack(): if not UM.Application.getInstance().getGlobalContainerStack():
return 0 # No active machine, so no extruders. return 0 # No active machine, so no extruders.
return len(self._extruder_trains[UM.Application.getInstance().getGlobalContainerStack().getId()]) try:
return len(self._extruder_trains[UM.Application.getInstance().getGlobalContainerStack().getId()])
except KeyError:
return 0
@pyqtProperty("QVariantMap", notify=extrudersChanged) @pyqtProperty("QVariantMap", notify=extrudersChanged)
def extruderIds(self): def extruderIds(self):