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Fix ContainerTree reacting to duplicating materials

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CURA-6863
This commit is contained in:
Lipu Fei 2019-10-14 12:22:15 +02:00
parent 8b913f4009
commit dd8f6dc10e
1 changed files with 14 additions and 0 deletions
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14
cura/Machines/Models/MaterialManagementModel.py
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@ -128,6 +128,20 @@ class MaterialManagementModel(QObject):
new_container.getMetaData().update(new_metadata)
new_containers.append(new_container)
# CURA-6863: Nodes in ContainerTree will be updated upon ContainerAdded signals, one at a time. It will use the
# best fit material container at the time it sees one. For example, if you duplicate and get generic_pva #2,
# if the node update function sees the containers in the following order:
#
# - generic_pva #2
# - generic_pva #2_um3_aa04
#
# It will first use "generic_pva #2" because that's the best fit it has ever seen, and later "generic_pva #2_um3_aa04"
# once it sees that. Because things run in the Qt event loop, they don't happen at the same time. This means if
# between those two events, the ContainerTree will have nodes that contain invalid data.
#
# This sort fixes the problem by emitting the most specific containers first.
new_containers = sorted(new_containers, key = lambda x: x.getId(), reverse = True)
for container_to_add in new_containers:
container_to_add.setDirty(True)
container_registry.addContainer(container_to_add)