Exemple #1
0
    def _buildExtruderMessage(self, stack: ContainerStack) -> None:
        message = self._slice_message.addRepeatedMessage("extruders")
        message.id = int(stack.getMetaDataEntry("position"))
        if not self._all_extruders_settings:
            self._cacheAllExtruderSettings()

        if self._all_extruders_settings is None:
            return

        extruder_nr = stack.getProperty("extruder_nr", "value")
        settings = self._all_extruders_settings[str(extruder_nr)].copy()

        # Also send the material GUID. This is a setting in fdmprinter, but we have no interface for it.
        settings["material_guid"] = stack.material.getMetaDataEntry("GUID", "")

        # Replace the setting tokens in start and end g-code.
        extruder_nr = stack.getProperty("extruder_nr", "value")
        settings["machine_extruder_start_code"] = self._expandGcodeTokens(settings["machine_extruder_start_code"], extruder_nr)
        settings["machine_extruder_end_code"] = self._expandGcodeTokens(settings["machine_extruder_end_code"], extruder_nr)

        for key, value in settings.items():
            # Do not send settings that are not settable_per_extruder.
            if not stack.getProperty(key, "settable_per_extruder"):
                continue
            setting = message.getMessage("settings").addRepeatedMessage("settings")
            setting.name = key
            setting.value = str(value).encode("utf-8")
            Job.yieldThread()
    def _buildExtruderMessage(self, stack: ContainerStack) -> None:
        message = self._arcus_message.addRepeatedMessage("extruders")
        message.id = int(stack.getMetaDataEntry("position"))

        settings = self._buildReplacementTokens(stack)

        # Also send the material GUID. This is a setting in fdmprinter, but we have no interface for it.
        settings["material_guid"] = stack.material.getMetaDataEntry("GUID", "")

        # Replace the setting tokens in start and end g-code.
        extruder_nr = stack.getProperty("extruder_nr", "value")
        settings["machine_extruder_start_code"] = self._expandGcodeTokens(
            settings["machine_extruder_start_code"], extruder_nr)
        settings["machine_extruder_end_code"] = self._expandGcodeTokens(
            settings["machine_extruder_end_code"], extruder_nr)
        settings["machine_fiber_cut_code"] = self._expandGcodeTokens(
            settings["machine_fiber_cut_code"], extruder_nr)
        settings["machine_fiber_prime_code"] = self._expandGcodeTokens(
            settings["machine_fiber_prime_code"], extruder_nr)

        for key, value in settings.items():
            # Do not send settings that are not settable_per_extruder.
            if not stack.getProperty(key, "settable_per_extruder"):
                continue
            setting = message.getMessage("settings").addRepeatedMessage(
                "settings")
            setting.name = key
            setting.value = str(value).encode("utf-8")
            Job.yieldThread()
Exemple #3
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    def addExtruder(self, extruder: ContainerStack) -> None:
        extruder_count = self.getProperty("machine_extruder_count", "value")

        if extruder_count <= 1:
            Logger.log(
                "i",
                "Not adding extruder[%s] to [%s] because it is a single-extrusion machine.",
                extruder.id, self.id)
            return

        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log(
                "w",
                "No position defined for extruder {extruder}, cannot add it to stack {stack}",
                extruder=extruder.id,
                stack=self.id)
            return

        if any(item.getId() == extruder.id
               for item in self._extruders.values()):
            Logger.log(
                "w", "Extruder [%s] has already been added to this stack [%s]",
                extruder.id, self._id)
            return

        self._extruders[position] = extruder
        Logger.log("i", "Extruder[%s] added to [%s] at position [%s]",
                   extruder.id, self.id, position)
Exemple #4
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    def _convertContainerStack(
        self, container: ContainerStack
    ) -> Union[ExtruderStack.ExtruderStack, GlobalStack.GlobalStack]:
        assert type(container) == ContainerStack

        container_type = container.getMetaDataEntry("type")
        if container_type not in ("extruder_train", "machine"):
            # It is not an extruder or machine, so do nothing with the stack
            return container

        Logger.log("d",
                   "Converting ContainerStack {stack} to {type}",
                   stack=container.getId(),
                   type=container_type)

        if container_type == "extruder_train":
            new_stack = ExtruderStack.ExtruderStack(container.getId())
        else:
            new_stack = GlobalStack.GlobalStack(container.getId())

        container_contents = container.serialize()
        new_stack.deserialize(container_contents)

        # Delete the old configuration file so we do not get double stacks
        if os.path.isfile(container.getPath()):
            os.remove(container.getPath())

        return new_stack
Exemple #5
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    def addExtruder(self, extruder: ContainerStack) -> None:
        """Add an extruder to the list of extruders of this stack.

        :param extruder: The extruder to add.

        :raise Exceptions.TooManyExtrudersError: Raised when trying to add an extruder while we
            already have the maximum number of extruders.
        """

        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log(
                "w",
                "No position defined for extruder {extruder}, cannot add it to stack {stack}",
                extruder=extruder.id,
                stack=self.id)
            return

        if any(item.getId() == extruder.id
               for item in self._extruders.values()):
            Logger.log(
                "w", "Extruder [%s] has already been added to this stack [%s]",
                extruder.id, self.getId())
            return

        self._extruders[position] = extruder
        self.extrudersChanged.emit()
        Logger.log("i", "Extruder[%s] added to [%s] at position [%s]",
                   extruder.id, self.id, position)
Exemple #6
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    def _buildExtruderMessage(self, stack: ContainerStack) -> None:
        """Create extruder message from stack"""

        message = self._slice_message.addRepeatedMessage("extruders")
        message.id = int(stack.getMetaDataEntry("position"))
        if not self._all_extruders_settings:
            self._cacheAllExtruderSettings()

        if self._all_extruders_settings is None:
            return

        extruder_nr = stack.getProperty("extruder_nr", "value")
        settings = self._all_extruders_settings[str(extruder_nr)].copy()

        # Also send the material GUID. This is a setting in fdmprinter, but we have no interface for it.
        settings["material_guid"] = stack.material.getMetaDataEntry("GUID", "")

        # Replace the setting tokens in start and end g-code.
        extruder_nr = stack.getProperty("extruder_nr", "value")
        settings["machine_extruder_start_code"] = self._expandGcodeTokens(settings["machine_extruder_start_code"], extruder_nr)
        settings["machine_extruder_end_code"] = self._expandGcodeTokens(settings["machine_extruder_end_code"], extruder_nr)

        global_definition = cast(ContainerInterface, cast(ContainerStack, stack.getNextStack()).getBottom())
        own_definition = cast(ContainerInterface, stack.getBottom())

        for key, value in settings.items():
            # Do not send settings that are not settable_per_extruder.
            # Since these can only be set in definition files, we only have to ask there.
            if not global_definition.getProperty(key, "settable_per_extruder") and \
                    not own_definition.getProperty(key, "settable_per_extruder"):
                    continue
            setting = message.getMessage("settings").addRepeatedMessage("settings")
            setting.name = key
            setting.value = str(value).encode("utf-8")
            Job.yieldThread()
Exemple #7
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    def addExtruder(self, extruder: ContainerStack) -> None:
        extruder_count = self.getProperty("machine_extruder_count", "value")
        if extruder_count and len(self._extruders) + 1 > extruder_count:
            Logger.log(
                "w",
                "Adding extruder {meta} to {id} but its extruder count is {count}"
                .format(id=self.id,
                        count=extruder_count,
                        meta=str(extruder.getMetaData())))
            return

        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log(
                "w",
                "No position defined for extruder {extruder}, cannot add it to stack {stack}",
                extruder=extruder.id,
                stack=self.id)
            return

        if any(item.getId() == extruder.id
               for item in self._extruders.values()):
            Logger.log(
                "w", "Extruder [%s] has already been added to this stack [%s]",
                extruder.id, self._id)
            return
        self._extruders[position] = extruder
Exemple #8
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    def addExtruder(self, extruder: ContainerStack) -> None:
        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log("w", "No position defined for extruder {extruder}, cannot add it to stack {stack}", extruder = extruder.id, stack = self.id)
            return

        if any(item.getId() == extruder.id for item in self._extruders.values()):
            Logger.log("w", "Extruder [%s] has already been added to this stack [%s]", extruder.id, self._id)
            return

        self._extruders[position] = extruder
        Logger.log("i", "Extruder[%s] added to [%s] at position [%s]", extruder.id, self.id, position)
Exemple #9
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    def addExtruder(self, extruder: ContainerStack) -> None:
        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log("w", "No position defined for extruder {extruder}, cannot add it to stack {stack}", extruder = extruder.id, stack = self.id)
            return

        if any(item.getId() == extruder.id for item in self._extruders.values()):
            Logger.log("w", "Extruder [%s] has already been added to this stack [%s]", extruder.id, self.getId())
            return

        self._extruders[position] = extruder
        Logger.log("i", "Extruder[%s] added to [%s] at position [%s]", extruder.id, self.id, position)
Exemple #10
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    def addExtruder(self, extruder: ContainerStack) -> None:
        extruder_count = self.getProperty("machine_extruder_count", "value")
        if extruder_count and len(self._extruders) + 1 > extruder_count:
            Logger.log("w", "Adding extruder {meta} to {id} but its extruder count is {count}".format(id = self.id, count = extruder_count, meta = str(extruder.getMetaData())))
            return

        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log("w", "No position defined for extruder {extruder}, cannot add it to stack {stack}", extruder = extruder.id, stack = self.id)
            return

        if any(item.getId() == extruder.id for item in self._extruders.values()):
            Logger.log("w", "Extruder [%s] has already been added to this stack [%s]", extruder.id, self._id)
            return
        self._extruders[position] = extruder
Exemple #11
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    def addExtruder(self, extruder: ContainerStack) -> None:
        extruder_count = self.getProperty("machine_extruder_count", "value")

        if extruder_count <= 1:
            Logger.log("i", "Not adding extruder[%s] to [%s] because it is a single-extrusion machine.",
                       extruder.id, self.id)
            return

        position = extruder.getMetaDataEntry("position")
        if position is None:
            Logger.log("w", "No position defined for extruder {extruder}, cannot add it to stack {stack}", extruder = extruder.id, stack = self.id)
            return

        if any(item.getId() == extruder.id for item in self._extruders.values()):
            Logger.log("w", "Extruder [%s] has already been added to this stack [%s]", extruder.id, self._id)
            return

        self._extruders[position] = extruder
        Logger.log("i", "Extruder[%s] added to [%s] at position [%s]", extruder.id, self.id, position)
    def read(self, file_name):
        # Load all the nodes / meshdata of the workspace
        nodes = self._3mf_mesh_reader.read(file_name)
        if nodes is None:
            nodes = []

        archive = zipfile.ZipFile(file_name, "r")

        cura_file_names = [name for name in archive.namelist() if name.startswith("Cura/")]

        # Create a shadow copy of the preferences (we don't want all of the preferences, but we do want to re-use its
        # parsing code.
        temp_preferences = Preferences()
        temp_preferences.readFromFile(io.TextIOWrapper(archive.open("Cura/preferences.cfg")))  # We need to wrap it, else the archive parser breaks.

        # Copy a number of settings from the temp preferences to the global
        global_preferences = Preferences.getInstance()
        global_preferences.setValue("general/visible_settings", temp_preferences.getValue("general/visible_settings"))
        global_preferences.setValue("cura/categories_expanded", temp_preferences.getValue("cura/categories_expanded"))
        Application.getInstance().expandedCategoriesChanged.emit()  # Notify the GUI of the change

        self._id_mapping = {}

        # We don't add containers right away, but wait right until right before the stack serialization.
        # We do this so that if something goes wrong, it's easier to clean up.
        containers_to_add = []

        # TODO: For the moment we use pretty naive existence checking. If the ID is the same, we assume in quite a few
        # TODO: cases that the container loaded is the same (most notable in materials & definitions).
        # TODO: It might be possible that we need to add smarter checking in the future.
        Logger.log("d", "Workspace loading is checking definitions...")
        # Get all the definition files & check if they exist. If not, add them.
        definition_container_files = [name for name in cura_file_names if name.endswith(self._definition_container_suffix)]
        for definition_container_file in definition_container_files:
            container_id = self._stripFileToId(definition_container_file)
            definitions = self._container_registry.findDefinitionContainers(id=container_id)
            if not definitions:
                definition_container = DefinitionContainer(container_id)
                definition_container.deserialize(archive.open(definition_container_file).read().decode("utf-8"))
                self._container_registry.addContainer(definition_container)

        Logger.log("d", "Workspace loading is checking materials...")
        material_containers = []
        # Get all the material files and check if they exist. If not, add them.
        xml_material_profile = self._getXmlProfileClass()
        if self._material_container_suffix is None:
            self._material_container_suffix = ContainerRegistry.getMimeTypeForContainer(xml_material_profile).suffixes[0]
        if xml_material_profile:
            material_container_files = [name for name in cura_file_names if name.endswith(self._material_container_suffix)]
            for material_container_file in material_container_files:
                container_id = self._stripFileToId(material_container_file)
                materials = self._container_registry.findInstanceContainers(id=container_id)
                if not materials:
                    material_container = xml_material_profile(container_id)
                    material_container.deserialize(archive.open(material_container_file).read().decode("utf-8"))
                    containers_to_add.append(material_container)
                else:
                    if not materials[0].isReadOnly():  # Only create new materials if they are not read only.
                        if self._resolve_strategies["material"] == "override":
                            materials[0].deserialize(archive.open(material_container_file).read().decode("utf-8"))
                        elif self._resolve_strategies["material"] == "new":
                            # Note that we *must* deserialize it with a new ID, as multiple containers will be
                            # auto created & added.
                            material_container = xml_material_profile(self.getNewId(container_id))
                            material_container.deserialize(archive.open(material_container_file).read().decode("utf-8"))
                            containers_to_add.append(material_container)
                            material_containers.append(material_container)

        Logger.log("d", "Workspace loading is checking instance containers...")
        # Get quality_changes and user profiles saved in the workspace
        instance_container_files = [name for name in cura_file_names if name.endswith(self._instance_container_suffix)]
        user_instance_containers = []
        quality_changes_instance_containers = []
        for instance_container_file in instance_container_files:
            container_id = self._stripFileToId(instance_container_file)
            instance_container = InstanceContainer(container_id)

            # Deserialize InstanceContainer by converting read data from bytes to string
            instance_container.deserialize(archive.open(instance_container_file).read().decode("utf-8"))
            container_type = instance_container.getMetaDataEntry("type")
            if container_type == "user":
                # Check if quality changes already exists.
                user_containers = self._container_registry.findInstanceContainers(id=container_id)
                if not user_containers:
                    containers_to_add.append(instance_container)
                else:
                    if self._resolve_strategies["machine"] == "override":
                        user_containers[0].deserialize(archive.open(instance_container_file).read().decode("utf-8"))
                    elif self._resolve_strategies["machine"] == "new":
                        # The machine is going to get a spiffy new name, so ensure that the id's of user settings match.
                        extruder_id = instance_container.getMetaDataEntry("extruder", None)
                        if extruder_id:
                            new_id = self.getNewId(extruder_id) + "_current_settings"
                            instance_container._id = new_id
                            instance_container.setName(new_id)
                            instance_container.setMetaDataEntry("extruder", self.getNewId(extruder_id))
                            containers_to_add.append(instance_container)

                        machine_id = instance_container.getMetaDataEntry("machine", None)
                        if machine_id:
                            new_id = self.getNewId(machine_id) + "_current_settings"
                            instance_container._id = new_id
                            instance_container.setName(new_id)
                            instance_container.setMetaDataEntry("machine", self.getNewId(machine_id))
                            containers_to_add.append(instance_container)
                user_instance_containers.append(instance_container)
            elif container_type == "quality_changes":
                # Check if quality changes already exists.
                quality_changes = self._container_registry.findInstanceContainers(id = container_id)
                if not quality_changes:
                    containers_to_add.append(instance_container)
                else:
                    if self._resolve_strategies["quality_changes"] == "override":
                        quality_changes[0].deserialize(archive.open(instance_container_file).read().decode("utf-8"))
                    elif self._resolve_strategies["quality_changes"] is None:
                        # The ID already exists, but nothing in the values changed, so do nothing.
                        pass
                quality_changes_instance_containers.append(instance_container)
            else:
                continue

        # Add all the containers right before we try to add / serialize the stack
        for container in containers_to_add:
            self._container_registry.addContainer(container)

        # Get the stack(s) saved in the workspace.
        Logger.log("d", "Workspace loading is checking stacks containers...")
        container_stack_files = [name for name in cura_file_names if name.endswith(self._container_stack_suffix)]
        global_stack = None
        extruder_stacks = []
        container_stacks_added = []
        try:
            for container_stack_file in container_stack_files:
                container_id = self._stripFileToId(container_stack_file)

                # Check if a stack by this ID already exists;
                container_stacks = self._container_registry.findContainerStacks(id=container_id)
                if container_stacks:
                    stack = container_stacks[0]
                    if self._resolve_strategies["machine"] == "override":
                        container_stacks[0].deserialize(archive.open(container_stack_file).read().decode("utf-8"))
                    elif self._resolve_strategies["machine"] == "new":
                        new_id = self.getNewId(container_id)
                        stack = ContainerStack(new_id)
                        stack.deserialize(archive.open(container_stack_file).read().decode("utf-8"))

                        # Ensure a unique ID and name
                        stack._id = new_id

                        # Extruder stacks are "bound" to a machine. If we add the machine as a new one, the id of the
                        # bound machine also needs to change.
                        if stack.getMetaDataEntry("machine", None):
                            stack.setMetaDataEntry("machine", self.getNewId(stack.getMetaDataEntry("machine")))

                        if stack.getMetaDataEntry("type") != "extruder_train":
                            # Only machines need a new name, stacks may be non-unique
                            stack.setName(self._container_registry.uniqueName(stack.getName()))
                        container_stacks_added.append(stack)
                        self._container_registry.addContainer(stack)
                    else:
                        Logger.log("w", "Resolve strategy of %s for machine is not supported", self._resolve_strategies["machine"])
                else:
                    stack = ContainerStack(container_id)
                    # Deserialize stack by converting read data from bytes to string
                    stack.deserialize(archive.open(container_stack_file).read().decode("utf-8"))
                    container_stacks_added.append(stack)
                    self._container_registry.addContainer(stack)

                if stack.getMetaDataEntry("type") == "extruder_train":
                    extruder_stacks.append(stack)
                else:
                    global_stack = stack
        except:
            Logger.log("W", "We failed to serialize the stack. Trying to clean up.")
            # Something went really wrong. Try to remove any data that we added. 
            for container in containers_to_add:
                self._container_registry.getInstance().removeContainer(container.getId())

            for container in container_stacks_added:
                self._container_registry.getInstance().removeContainer(container.getId())

            return None

        if self._resolve_strategies["machine"] == "new":
            # A new machine was made, but it was serialized with the wrong user container. Fix that now.
            for container in user_instance_containers:
                extruder_id = container.getMetaDataEntry("extruder", None)
                if extruder_id:
                    for extruder in extruder_stacks:
                        if extruder.getId() == extruder_id:
                            extruder.replaceContainer(0, container)
                            continue
                machine_id = container.getMetaDataEntry("machine", None)
                if machine_id:
                    if global_stack.getId() == machine_id:
                        global_stack.replaceContainer(0, container)
                        continue

        if self._resolve_strategies["quality_changes"] == "new":
            # Quality changes needs to get a new ID, added to registry and to the right stacks
            for container in quality_changes_instance_containers:
                old_id = container.getId()
                container.setName(self._container_registry.uniqueName(container.getName()))
                # We're not really supposed to change the ID in normal cases, but this is an exception.
                container._id = self.getNewId(container.getId())

                # The container was not added yet, as it didn't have an unique ID. It does now, so add it.
                self._container_registry.addContainer(container)

                # Replace the quality changes container
                old_container = global_stack.findContainer({"type": "quality_changes"})
                if old_container.getId() == old_id:
                    quality_changes_index = global_stack.getContainerIndex(old_container)
                    global_stack.replaceContainer(quality_changes_index, container)
                    continue

                for stack in extruder_stacks:
                    old_container = stack.findContainer({"type": "quality_changes"})
                    if old_container.getId() == old_id:
                        quality_changes_index = stack.getContainerIndex(old_container)
                        stack.replaceContainer(quality_changes_index, container)

        if self._resolve_strategies["material"] == "new":
            for material in material_containers:
                old_material = global_stack.findContainer({"type": "material"})
                if old_material.getId() in self._id_mapping:
                    material_index = global_stack.getContainerIndex(old_material)
                    global_stack.replaceContainer(material_index, material)
                    continue

                for stack in extruder_stacks:
                    old_material = stack.findContainer({"type": "material"})
                    if old_material.getId() in self._id_mapping:
                        material_index = stack.getContainerIndex(old_material)
                        stack.replaceContainer(material_index, material)
                        continue

        for stack in extruder_stacks:
            ExtruderManager.getInstance().registerExtruder(stack, global_stack.getId())
        else:
            # Machine has no extruders, but it needs to be registered with the extruder manager.
            ExtruderManager.getInstance().registerExtruder(None, global_stack.getId())

        Logger.log("d", "Workspace loading is notifying rest of the code of changes...")
        # Notify everything/one that is to notify about changes.
        for container in global_stack.getContainers():
            global_stack.containersChanged.emit(container)

        for stack in extruder_stacks:
            stack.setNextStack(global_stack)
            for container in stack.getContainers():
                stack.containersChanged.emit(container)

        # Actually change the active machine.
        Application.getInstance().setGlobalContainerStack(global_stack)
        return nodes
    def read(self, file_name):
        archive = zipfile.ZipFile(file_name, "r")

        cura_file_names = [
            name for name in archive.namelist() if name.startswith("Cura/")
        ]

        # Create a shadow copy of the preferences (we don't want all of the preferences, but we do want to re-use its
        # parsing code.
        temp_preferences = Preferences()
        temp_preferences.readFromFile(
            io.TextIOWrapper(archive.open("Cura/preferences.cfg"))
        )  # We need to wrap it, else the archive parser breaks.

        # Copy a number of settings from the temp preferences to the global
        global_preferences = Preferences.getInstance()

        visible_settings = temp_preferences.getValue(
            "general/visible_settings")
        if visible_settings is None:
            Logger.log(
                "w",
                "Workspace did not contain visible settings. Leaving visibility unchanged"
            )
        else:
            global_preferences.setValue("general/visible_settings",
                                        visible_settings)

        categories_expanded = temp_preferences.getValue(
            "cura/categories_expanded")
        if categories_expanded is None:
            Logger.log(
                "w",
                "Workspace did not contain expanded categories. Leaving them unchanged"
            )
        else:
            global_preferences.setValue("cura/categories_expanded",
                                        categories_expanded)

        Application.getInstance().expandedCategoriesChanged.emit(
        )  # Notify the GUI of the change

        self._id_mapping = {}

        # We don't add containers right away, but wait right until right before the stack serialization.
        # We do this so that if something goes wrong, it's easier to clean up.
        containers_to_add = []

        # TODO: For the moment we use pretty naive existence checking. If the ID is the same, we assume in quite a few
        # TODO: cases that the container loaded is the same (most notable in materials & definitions).
        # TODO: It might be possible that we need to add smarter checking in the future.
        Logger.log("d", "Workspace loading is checking definitions...")
        # Get all the definition files & check if they exist. If not, add them.
        definition_container_files = [
            name for name in cura_file_names
            if name.endswith(self._definition_container_suffix)
        ]
        for definition_container_file in definition_container_files:
            container_id = self._stripFileToId(definition_container_file)
            definitions = self._container_registry.findDefinitionContainers(
                id=container_id)
            if not definitions:
                definition_container = DefinitionContainer(container_id)
                definition_container.deserialize(
                    archive.open(definition_container_file).read().decode(
                        "utf-8"))
                self._container_registry.addContainer(definition_container)
            Job.yieldThread()

        Logger.log("d", "Workspace loading is checking materials...")
        material_containers = []
        # Get all the material files and check if they exist. If not, add them.
        xml_material_profile = self._getXmlProfileClass()
        if self._material_container_suffix is None:
            self._material_container_suffix = ContainerRegistry.getMimeTypeForContainer(
                xml_material_profile).suffixes[0]
        if xml_material_profile:
            material_container_files = [
                name for name in cura_file_names
                if name.endswith(self._material_container_suffix)
            ]
            for material_container_file in material_container_files:
                container_id = self._stripFileToId(material_container_file)
                materials = self._container_registry.findInstanceContainers(
                    id=container_id)
                if not materials:
                    material_container = xml_material_profile(container_id)
                    material_container.deserialize(
                        archive.open(material_container_file).read().decode(
                            "utf-8"))
                    containers_to_add.append(material_container)
                else:
                    if not materials[0].isReadOnly(
                    ):  # Only create new materials if they are not read only.
                        if self._resolve_strategies["material"] == "override":
                            materials[0].deserialize(
                                archive.open(material_container_file).read().
                                decode("utf-8"))
                        elif self._resolve_strategies["material"] == "new":
                            # Note that we *must* deserialize it with a new ID, as multiple containers will be
                            # auto created & added.
                            material_container = xml_material_profile(
                                self.getNewId(container_id))
                            material_container.deserialize(
                                archive.open(material_container_file).read().
                                decode("utf-8"))
                            containers_to_add.append(material_container)
                            material_containers.append(material_container)
                Job.yieldThread()

        Logger.log("d", "Workspace loading is checking instance containers...")
        # Get quality_changes and user profiles saved in the workspace
        instance_container_files = [
            name for name in cura_file_names
            if name.endswith(self._instance_container_suffix)
        ]
        user_instance_containers = []
        quality_changes_instance_containers = []
        for instance_container_file in instance_container_files:
            container_id = self._stripFileToId(instance_container_file)
            instance_container = InstanceContainer(container_id)

            # Deserialize InstanceContainer by converting read data from bytes to string
            instance_container.deserialize(
                archive.open(instance_container_file).read().decode("utf-8"))
            container_type = instance_container.getMetaDataEntry("type")
            Job.yieldThread()
            if container_type == "user":
                # Check if quality changes already exists.
                user_containers = self._container_registry.findInstanceContainers(
                    id=container_id)
                if not user_containers:
                    containers_to_add.append(instance_container)
                else:
                    if self._resolve_strategies[
                            "machine"] == "override" or self._resolve_strategies[
                                "machine"] is None:
                        user_containers[0].deserialize(
                            archive.open(instance_container_file).read().
                            decode("utf-8"))
                    elif self._resolve_strategies["machine"] == "new":
                        # The machine is going to get a spiffy new name, so ensure that the id's of user settings match.
                        extruder_id = instance_container.getMetaDataEntry(
                            "extruder", None)
                        if extruder_id:
                            new_id = self.getNewId(
                                extruder_id) + "_current_settings"
                            instance_container._id = new_id
                            instance_container.setName(new_id)
                            instance_container.setMetaDataEntry(
                                "extruder", self.getNewId(extruder_id))
                            containers_to_add.append(instance_container)

                        machine_id = instance_container.getMetaDataEntry(
                            "machine", None)
                        if machine_id:
                            new_id = self.getNewId(
                                machine_id) + "_current_settings"
                            instance_container._id = new_id
                            instance_container.setName(new_id)
                            instance_container.setMetaDataEntry(
                                "machine", self.getNewId(machine_id))
                            containers_to_add.append(instance_container)
                user_instance_containers.append(instance_container)
            elif container_type == "quality_changes":
                # Check if quality changes already exists.
                quality_changes = self._container_registry.findInstanceContainers(
                    id=container_id)
                if not quality_changes:
                    containers_to_add.append(instance_container)
                else:
                    if self._resolve_strategies[
                            "quality_changes"] == "override":
                        quality_changes[0].deserialize(
                            archive.open(instance_container_file).read().
                            decode("utf-8"))
                    elif self._resolve_strategies["quality_changes"] is None:
                        # The ID already exists, but nothing in the values changed, so do nothing.
                        pass
                quality_changes_instance_containers.append(instance_container)
            else:
                continue

        # Add all the containers right before we try to add / serialize the stack
        for container in containers_to_add:
            self._container_registry.addContainer(container)
            container.setDirty(True)

        # Get the stack(s) saved in the workspace.
        Logger.log("d", "Workspace loading is checking stacks containers...")
        container_stack_files = [
            name for name in cura_file_names
            if name.endswith(self._container_stack_suffix)
        ]
        global_stack = None
        extruder_stacks = []
        container_stacks_added = []
        try:
            for container_stack_file in container_stack_files:
                container_id = self._stripFileToId(container_stack_file)

                # Check if a stack by this ID already exists;
                container_stacks = self._container_registry.findContainerStacks(
                    id=container_id)
                if container_stacks:
                    stack = container_stacks[0]
                    if self._resolve_strategies["machine"] == "override":
                        # TODO: HACK
                        # There is a machine, check if it has authenticationd data. If so, keep that data.
                        network_authentication_id = container_stacks[
                            0].getMetaDataEntry("network_authentication_id")
                        network_authentication_key = container_stacks[
                            0].getMetaDataEntry("network_authentication_key")
                        container_stacks[0].deserialize(
                            archive.open(container_stack_file).read().decode(
                                "utf-8"))
                        if network_authentication_id:
                            container_stacks[0].addMetaDataEntry(
                                "network_authentication_id",
                                network_authentication_id)
                        if network_authentication_key:
                            container_stacks[0].addMetaDataEntry(
                                "network_authentication_key",
                                network_authentication_key)
                    elif self._resolve_strategies["machine"] == "new":
                        new_id = self.getNewId(container_id)
                        stack = ContainerStack(new_id)
                        stack.deserialize(
                            archive.open(container_stack_file).read().decode(
                                "utf-8"))

                        # Ensure a unique ID and name
                        stack._id = new_id

                        # Extruder stacks are "bound" to a machine. If we add the machine as a new one, the id of the
                        # bound machine also needs to change.
                        if stack.getMetaDataEntry("machine", None):
                            stack.setMetaDataEntry(
                                "machine",
                                self.getNewId(
                                    stack.getMetaDataEntry("machine")))

                        if stack.getMetaDataEntry("type") != "extruder_train":
                            # Only machines need a new name, stacks may be non-unique
                            stack.setName(
                                self._container_registry.uniqueName(
                                    stack.getName()))
                        container_stacks_added.append(stack)
                        self._container_registry.addContainer(stack)
                    else:
                        Logger.log(
                            "w",
                            "Resolve strategy of %s for machine is not supported",
                            self._resolve_strategies["machine"])
                else:
                    stack = ContainerStack(container_id)
                    # Deserialize stack by converting read data from bytes to string
                    stack.deserialize(
                        archive.open(container_stack_file).read().decode(
                            "utf-8"))
                    container_stacks_added.append(stack)
                    self._container_registry.addContainer(stack)

                if stack.getMetaDataEntry("type") == "extruder_train":
                    extruder_stacks.append(stack)
                else:
                    global_stack = stack
                Job.yieldThread()
        except:
            Logger.logException(
                "w", "We failed to serialize the stack. Trying to clean up.")
            # Something went really wrong. Try to remove any data that we added.
            for container in containers_to_add:
                self._container_registry.getInstance().removeContainer(
                    container.getId())

            for container in container_stacks_added:
                self._container_registry.getInstance().removeContainer(
                    container.getId())

            return None

        if self._resolve_strategies["machine"] == "new":
            # A new machine was made, but it was serialized with the wrong user container. Fix that now.
            for container in user_instance_containers:
                extruder_id = container.getMetaDataEntry("extruder", None)
                if extruder_id:
                    for extruder in extruder_stacks:
                        if extruder.getId() == extruder_id:
                            extruder.replaceContainer(0, container)
                            continue
                machine_id = container.getMetaDataEntry("machine", None)
                if machine_id:
                    if global_stack.getId() == machine_id:
                        global_stack.replaceContainer(0, container)
                        continue

        if self._resolve_strategies["quality_changes"] == "new":
            # Quality changes needs to get a new ID, added to registry and to the right stacks
            for container in quality_changes_instance_containers:
                old_id = container.getId()
                container.setName(
                    self._container_registry.uniqueName(container.getName()))
                # We're not really supposed to change the ID in normal cases, but this is an exception.
                container._id = self.getNewId(container.getId())

                # The container was not added yet, as it didn't have an unique ID. It does now, so add it.
                self._container_registry.addContainer(container)

                # Replace the quality changes container
                old_container = global_stack.findContainer(
                    {"type": "quality_changes"})
                if old_container.getId() == old_id:
                    quality_changes_index = global_stack.getContainerIndex(
                        old_container)
                    global_stack.replaceContainer(quality_changes_index,
                                                  container)
                    continue

                for stack in extruder_stacks:
                    old_container = stack.findContainer(
                        {"type": "quality_changes"})
                    if old_container.getId() == old_id:
                        quality_changes_index = stack.getContainerIndex(
                            old_container)
                        stack.replaceContainer(quality_changes_index,
                                               container)

        if self._resolve_strategies["material"] == "new":
            for material in material_containers:
                old_material = global_stack.findContainer({"type": "material"})
                if old_material.getId() in self._id_mapping:
                    material_index = global_stack.getContainerIndex(
                        old_material)
                    global_stack.replaceContainer(material_index, material)
                    continue

                for stack in extruder_stacks:
                    old_material = stack.findContainer({"type": "material"})
                    if old_material.getId() in self._id_mapping:
                        material_index = stack.getContainerIndex(old_material)
                        stack.replaceContainer(material_index, material)
                        continue

        for stack in extruder_stacks:
            ExtruderManager.getInstance().registerExtruder(
                stack, global_stack.getId())
        else:
            # Machine has no extruders, but it needs to be registered with the extruder manager.
            ExtruderManager.getInstance().registerExtruder(
                None, global_stack.getId())

        Logger.log(
            "d",
            "Workspace loading is notifying rest of the code of changes...")

        # Notify everything/one that is to notify about changes.
        global_stack.containersChanged.emit(global_stack.getTop())

        for stack in extruder_stacks:
            stack.setNextStack(global_stack)
            stack.containersChanged.emit(stack.getTop())

        # Actually change the active machine.
        Application.getInstance().setGlobalContainerStack(global_stack)

        # Load all the nodes / meshdata of the workspace
        nodes = self._3mf_mesh_reader.read(file_name)
        if nodes is None:
            nodes = []
        return nodes