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Merge pull request #18025 from Ultimaker/CURA-11536

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Allow for expressions in start/end machine/extruder code extruder_nr field
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Erwan MATHIEU 2024-01-16 13:21:53 +01:00 committed by GitHub
commit 7b1b542efa
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1 changed files with 31 additions and 22 deletions
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53
plugins/CuraEngineBackend/StartSliceJob.py
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@ -1,4 +1,4 @@
# Copyright (c) 2023 UltiMaker
# Copyright (c) 2024 UltiMaker
# Cura is released under the terms of the LGPLv3 or higher.
import uuid
@ -63,13 +63,12 @@ class GcodeStartEndFormatter(Formatter):
# will be used. Alternatively, if the expression is formatted as "{[expression], [extruder_nr]}",
# then the expression will be evaluated with the extruder stack of the specified extruder_nr.
_extruder_regex = re.compile(r"^\s*(?P<expression>.*)\s*,\s*(?P<extruder_nr>\d+)\s*$")
_extruder_regex = re.compile(r"^\s*(?P<expression>.*)\s*,\s*(?P<extruder_nr_expr>.*)\s*$")
def __init__(self, default_extruder_nr: int = -1, *,
additional_per_extruder_settings: Optional[Dict[str, Dict[str, any]]] = None) -> None:
def __init__(self, all_extruder_settings: Dict[str, Any], default_extruder_nr: int = -1) -> None:
super().__init__()
self._all_extruder_settings: Dict[str, Any] = all_extruder_settings
self._default_extruder_nr: int = default_extruder_nr
self._additional_per_extruder_settings: Optional[Dict[str, Dict[str, any]]] = additional_per_extruder_settings
def get_field(self, field_name, args: [str], kwargs: dict) -> Tuple[str, str]:
# get_field method parses all fields in the format-string and parses them individually to the get_value method.
@ -88,22 +87,32 @@ class GcodeStartEndFormatter(Formatter):
if expression in post_slice_data_variables:
return f"{{{expression}}}"
extruder_nr = self._default_extruder_nr
extruder_nr = str(self._default_extruder_nr)
# The settings may specify a specific extruder to use. This is done by
# formatting the expression as "{expression}, {extruder_nr}". If the
# formatting the expression as "{expression}, {extruder_nr_expr}". If the
# expression is formatted like this, we extract the extruder_nr and use
# it to get the value from the correct extruder stack.
match = self._extruder_regex.match(expression)
if match:
expression = match.group("expression")
extruder_nr = int(match.group("extruder_nr"))
extruder_nr_expr = match.group("extruder_nr_expr")
if self._additional_per_extruder_settings is not None and str(
extruder_nr) in self._additional_per_extruder_settings:
additional_variables = self._additional_per_extruder_settings[str(extruder_nr)]
if extruder_nr_expr.isdigit():
extruder_nr = extruder_nr_expr
else:
# We get the value of the extruder_nr_expr from `_all_extruder_settings` dictionary
# rather than the global container stack. The `_all_extruder_settings["-1"]` is a
# dict-representation of the global container stack, with additional properties such
# as `initial_extruder_nr`. As users may enter such expressions we can't use the
# global container stack.
extruder_nr = str(self._all_extruder_settings["-1"].get(extruder_nr_expr, "-1"))
if extruder_nr in self._all_extruder_settings:
additional_variables = self._all_extruder_settings[extruder_nr].copy()
else:
additional_variables = dict()
Logger.warning(f"Extruder {extruder_nr} does not exist, using global settings")
additional_variables = self._all_extruder_settings["-1"].copy()
# Add the arguments and keyword arguments to the additional settings. These
# are currently _not_ used, but they are added for consistency with the
@ -113,15 +122,17 @@ class GcodeStartEndFormatter(Formatter):
for key, value in kwargs.items():
additional_variables[key] = value
if extruder_nr == -1:
if extruder_nr == "-1":
container_stack = CuraApplication.getInstance().getGlobalContainerStack()
else:
container_stack = ExtruderManager.getInstance().getExtruderStack(extruder_nr)
if not container_stack:
Logger.warning(f"Extruder {extruder_nr} does not exist, using global settings")
container_stack = CuraApplication.getInstance().getGlobalContainerStack()
setting_function = SettingFunction(expression)
value = setting_function(container_stack, additional_variables=additional_variables)
return value
@ -131,12 +142,13 @@ class StartSliceJob(Job):
def __init__(self, slice_message: Arcus.PythonMessage) -> None:
super().__init__()
self._scene = CuraApplication.getInstance().getController().getScene() #type: Scene
self._scene: Scene = CuraApplication.getInstance().getController().getScene()
self._slice_message: Arcus.PythonMessage = slice_message
self._is_cancelled = False #type: bool
self._build_plate_number = None #type: Optional[int]
self._is_cancelled: bool = False
self._build_plate_number: Optional[int] = None
self._all_extruders_settings = None #type: Optional[Dict[str, Any]] # cache for all setting values from all stacks (global & extruder) for the current machine
# cache for all setting values from all stacks (global & extruder) for the current machine
self._all_extruders_settings: Optional[Dict[str, Any]] = None
def getSliceMessage(self) -> Arcus.PythonMessage:
return self._slice_message
@ -471,10 +483,7 @@ class StartSliceJob(Job):
# Get "replacement-keys" for the extruders. In the formatter the settings stack is used to get the
# replacement values for the setting-keys. However, the values for `material_id`, `material_type`,
# etc are not in the settings stack.
additional_per_extruder_settings = self._all_extruders_settings.copy()
additional_per_extruder_settings["default_extruder_nr"] = default_extruder_nr
fmt = GcodeStartEndFormatter(default_extruder_nr=default_extruder_nr,
additional_per_extruder_settings=additional_per_extruder_settings)
fmt = GcodeStartEndFormatter(self._all_extruders_settings, default_extruder_nr=default_extruder_nr)
return str(fmt.format(value))
except:
Logger.logException("w", "Unable to do token replacement on start/end g-code")