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Refactor project loading

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CURA-3756
This commit is contained in:
Lipu Fei 2017-05-17 10:24:49 +02:00
parent ee831928ba
commit 8c2fe0951d
1 changed files with 39 additions and 31 deletions
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70
plugins/3MFReader/ThreeMFWorkspaceReader.py
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@ -311,6 +311,36 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
return WorkspaceReader.PreReadResult.accepted
## Overrides an ExtruderStack in the given GlobalStack and returns the new ExtruderStack.
def _overrideExtruderStack(self, global_stack, extruder_index, extruder_file_content):
extruder_stack = global_stack.extruders[extruder_index]
machine_extruder_count = len(global_stack.extruders)
old_extruder_stack_id = extruder_stack.getId()
# HACK: There are two cases:
# - the new ExtruderStack has the same ID as the one we are overriding
# - they don't have the same ID
# In the second case, directly overriding the existing ExtruderStack will leave the old stack file
# in the Cura directory, and this will cause a problem when we restart Cura. So, we always delete
# the existing file first.
self._container_registry._deleteFiles(extruder_stack)
# override the given extruder stack
extruder_stack.deserialize(extruder_file_content)
# HACK: The deserialize() of ExtruderStack will add itself to the GlobalStack, which is redundant here.
# So we need to remove the new entries in the GlobalStack.
global_stack._extruders = global_stack._extruders[:machine_extruder_count]
# HACK: clean and fill the container query cache again
if old_extruder_stack_id in self._container_registry._id_container_cache:
del self._container_registry._id_container_cache[old_extruder_stack_id]
new_extruder_stack_id = extruder_stack.getId()
self._container_registry._id_container_cache[new_extruder_stack_id] = extruder_stack
# return the new ExtruderStack
return extruder_stack
## Read the project file
# Add all the definitions / materials / quality changes that do not exist yet. Then it loads
# all the stacks into the container registry. In some cases it will reuse the container for the global stack.
@ -478,12 +508,16 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
# Check if quality changes already exists.
changes_containers = self._container_registry.findInstanceContainers(id = container_id)
if not changes_containers:
# no existing containers with the same ID, so we can safely add the new one
containers_to_add.append(instance_container)
else:
# we have found existing container with the same ID, so we need to resolve according to the
# selected strategy.
if self._resolve_strategies[container_type] == "override":
instance_container = changes_containers[0]
instance_container.deserialize(archive.open(instance_container_file).read().decode("utf-8"))
instance_container.setDirty(True)
elif self._resolve_strategies[container_type] == "new":
# TODO: how should we handle the case "new" for quality_changes and definition_changes?
@ -587,6 +621,7 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
try:
for index, extruder_stack_file in enumerate(extruder_stack_files):
container_id = self._stripFileToId(extruder_stack_file)
extruder_file_content = archive.open(extruder_stack_file, "r").read().decode("utf-8")
container_stacks = self._container_registry.findContainerStacks(id = container_id)
if container_stacks:
@ -595,23 +630,8 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
if self._resolve_strategies["machine"] == "override":
# NOTE: This is the same code as those in the lower part
global_stacks = self._container_registry.findContainerStacks(id = global_stack_id_original)
# deserialize new extruder stack over the current ones
if global_stacks:
old_extruder_stack_id = global_stacks[0].extruders[index].getId()
# HACK delete file
self._container_registry._deleteFiles(global_stacks[0].extruders[index])
global_stacks[0].extruders[index].deserialize(archive.open(extruder_stack_file).read().decode("utf-8"))
# HACK
global_stacks[0]._extruders = global_stacks[0]._extruders[:2]
# HACK update cache
del self._container_registry._id_container_cache[old_extruder_stack_id]
new_extruder_stack_id = global_stacks[0].extruders[index].getId()
self._container_registry._id_container_cache[new_extruder_stack_id] = global_stacks[0].extruders[index]
stack = global_stacks[0].extruders[index]
else:
Logger.log("w", "Could not find global stack, while I expected it: %s" % global_stack_id_original)
stack = self._overrideExtruderStack(global_stack, index, extruder_file_content)
elif self._resolve_strategies["machine"] == "new":
# create a new extruder stack from this one
@ -626,24 +646,11 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
extruder_stacks_added.append(stack)
containers_added.append(stack)
else:
# No extruder stack with the same ID can be found
if self._resolve_strategies["machine"] == "override":
global_stacks = self._container_registry.findContainerStacks(id = global_stack_id_original)
# deserialize new extruder stack over the current ones
if global_stacks:
old_extruder_stack_id = global_stacks[0].extruders[index].getId()
# HACK delete file
self._container_registry._deleteFiles(global_stacks[0].extruders[index])
global_stacks[0].extruders[index].deserialize(archive.open(extruder_stack_file).read().decode("utf-8"))
# HACK
global_stacks[0]._extruders = global_stacks[0]._extruders[:2]
# HACK update cache
del self._container_registry._id_container_cache[old_extruder_stack_id]
new_extruder_stack_id = global_stacks[0].extruders[index].getId()
self._container_registry._id_container_cache[new_extruder_stack_id] = global_stacks[0].extruders[index]
stack = self._overrideExtruderStack(global_stack, index, extruder_file_content)
stack = global_stacks[0].extruders[index]
else:
Logger.log("w", "Could not find global stack, while I expected it: %s" % global_stack_id_original)
elif self._resolve_strategies["machine"] == "new":
# container not found, create a new one
stack = ExtruderStack(container_id)
@ -657,6 +664,7 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
if global_stack_need_rename:
if stack.getMetaDataEntry("machine"):
stack.setMetaDataEntry("machine", global_stack_id_new)
extruder_stacks.append(stack)
except:
Logger.logException("w", "We failed to serialize the stack. Trying to clean up.")