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Add doc for map/tree update/recreation

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Lipu Fei 2018-03-01 11:10:05 +01:00
parent d4cb10b061
commit b8ac5b296b
2 changed files with 10 additions and 0 deletions
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5
cura/Machines/MaterialManager.py
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@ -18,6 +18,11 @@ from .MaterialGroup import MaterialGroup
# The models GUI and QML use are now only dependent on the MaterialManager. That means as long as the data in
# MaterialManager gets updated correctly, the GUI models should be updated correctly too, and the same goes for GUI.
#
# For now, updating the lookup maps and trees here is very simple: we discard the old data completely and recreate them
# again. This means the update is exactly the same as initialization. There are performance concerns about this approach
# but so far the creation of the tables and maps is very fast and there is no noticeable slowness, we keep it like this
# because it's simple.
#
class MaterialManager(QObject):
materialsUpdated = pyqtSignal() # Emitted whenever the material lookup tables are updated.