Merge branch 'Ultimaker:master' into master

README.md

@@ -16,7 +16,7 @@ For crashes and similar issues, please attach the following information:
 
 If the Cura user interface still starts, you can also reach this directory from the application menu in Help -> Show settings folder
 
-For additional support, you could also ask in the #cura channel on FreeNode IRC. For help with development, there is also the #cura-dev channel.
+For additional support, you could also ask in the [#cura channel](https://web.libera.chat/#cura) on [libera.chat](https://libera.chat/). For help with development, there is also the [#cura-dev channel](https://web.libera.chat/#cura-dev).
 
 Dependencies
 ------------
@@ -26,10 +26,16 @@ Dependencies
 * [PySerial](https://github.com/pyserial/pyserial) Only required for USB printing support.
 * [python-zeroconf](https://github.com/jstasiak/python-zeroconf) Only required to detect mDNS-enabled printers.
 
+For a list of required Python packages, with their recommended version, see `requirements.txt`.
+
+This list is not exhaustive at the moment, please check the links in the next section for more details.
+
 Build scripts
 -------------
 Please check out [cura-build](https://github.com/Ultimaker/cura-build) for detailed building instructions.
 
+If you want to build the entire environment from scratch before building Cura as well, [cura-build-environment](https://github.com/Ultimaker/cura-build) might be a starting point before cura-build. (Again, see cura-build for more details.)
+
 Running from Source
 -------------
 Please check our [Wiki page](https://github.com/Ultimaker/Cura/wiki/Running-Cura-from-Source) for details about running Cura from source.

cura/ApplicationMetadata.py

@@ -13,7 +13,7 @@ DEFAULT_CURA_DEBUG_MODE = False
 # Each release has a fixed SDK version coupled with it. It doesn't make sense to make it configurable because, for
 # example Cura 3.2 with SDK version 6.1 will not work. So the SDK version is hard-coded here and left out of the
 # CuraVersion.py.in template.
-CuraSDKVersion = "7.5.0"
+CuraSDKVersion = "7.6.0"
 
 try:
     from cura.CuraVersion import CuraAppName  # type: ignore

cura/Backups/Backup.py

@@ -7,13 +7,14 @@ import re
 import shutil
 from copy import deepcopy
 from zipfile import ZipFile, ZIP_DEFLATED, BadZipfile
-from typing import Dict, Optional, TYPE_CHECKING
+from typing import Dict, Optional, TYPE_CHECKING, List
 
 from UM import i18nCatalog
 from UM.Logger import Logger
 from UM.Message import Message
 from UM.Platform import Platform
 from UM.Resources import Resources
+from UM.Version import Version
 
 if TYPE_CHECKING:
     from cura.CuraApplication import CuraApplication
@@ -28,6 +29,8 @@ class Backup:
     IGNORED_FILES = [r"cura\.log", r"plugins\.json", r"cache", r"__pycache__", r"\.qmlc", r"\.pyc"]
     """These files should be ignored when making a backup."""
 
+    IGNORED_FOLDERS = []  # type: List[str]
+
     SECRETS_SETTINGS = ["general/ultimaker_auth_data"]
     """Secret preferences that need to obfuscated when making a backup of Cura"""
 
@@ -74,8 +77,9 @@ class Backup:
         machine_count = max(len([s for s in files if "machine_instances/" in s]) - 1, 0)  # If people delete their profiles but not their preferences, it can still make a backup, and report -1 profiles. Server crashes on this.
         material_count = max(len([s for s in files if "materials/" in s]) - 1, 0)
         profile_count = max(len([s for s in files if "quality_changes/" in s]) - 1, 0)
-        plugin_count = len([s for s in files if "plugin.json" in s])
+        # We don't store plugins anymore, since if you can make backups, you have an account (and the plugins are
-
+        # on the marketplace anyway)
+        plugin_count = 0
         # Store the archive and metadata so the BackupManager can fetch them when needed.
         self.zip_file = buffer.getvalue()
         self.meta_data = {
@@ -94,8 +98,7 @@ class Backup:
         :param root_path: The root directory to archive recursively.
         :return: The archive as bytes.
         """
-
+        ignore_string = re.compile("|".join(self.IGNORED_FILES + self.IGNORED_FOLDERS))
-        ignore_string = re.compile("|".join(self.IGNORED_FILES))
         try:
             archive = ZipFile(buffer, "w", ZIP_DEFLATED)
             for root, folders, files in os.walk(root_path):
@@ -132,8 +135,8 @@ class Backup:
                                    "Tried to restore a Cura backup without having proper data or meta data."))
             return False
 
-        current_version = self._application.getVersion()
+        current_version = Version(self._application.getVersion())
-        version_to_restore = self.meta_data.get("cura_release", "master")
+        version_to_restore = Version(self.meta_data.get("cura_release", "master"))
 
         if current_version < version_to_restore:
             # Cannot restore version newer than current because settings might have changed.
@@ -163,6 +166,9 @@ class Backup:
             Logger.log("d", "Moving preferences file from %s to %s", backup_preferences_file, preferences_file)
             shutil.move(backup_preferences_file, preferences_file)
 
+        # Read the preferences from the newly restored configuration (or else the cached Preferences will override the restored ones)
+        self._application.readPreferencesFromConfiguration()
+
         # Restore the obfuscated settings
         self._illuminate(**secrets)
 
@@ -187,11 +193,13 @@ class Backup:
         Logger.log("d", "Removing current data in location: %s", target_path)
         Resources.factoryReset()
         Logger.log("d", "Extracting backup to location: %s", target_path)
-        try:
+        name_list = archive.namelist()
-            archive.extractall(target_path)
+        for archive_filename in name_list:
-        except (PermissionError, EnvironmentError):
+            try:
-            Logger.logException("e", "Unable to extract the backup due to permission or file system errors.")
+                archive.extract(archive_filename, target_path)
-            return False
+            except (PermissionError, EnvironmentError):
+                Logger.logException("e", f"Unable to extract the file {archive_filename} from the backup due to permission or file system errors.")
+            CuraApplication.getInstance().processEvents()
         return True
 
     def _obfuscate(self) -> Dict[str, str]:

cura/Backups/BackupsManager.py

@@ -4,6 +4,7 @@
 from typing import Dict, Optional, Tuple, TYPE_CHECKING
 
 from UM.Logger import Logger
+from UM.Version import Version
 from cura.Backups.Backup import Backup
 
 if TYPE_CHECKING:
@@ -52,6 +53,7 @@ class BackupsManager:
 
         backup = Backup(self._application, zip_file = zip_file, meta_data = meta_data)
         restored = backup.restore()
+
         if restored:
             # At this point, Cura will need to restart for the changes to take effect.
             # We don't want to store the data at this point as that would override the just-restored backup.

cura/BuildVolume.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import numpy
@@ -916,6 +916,8 @@ class BuildVolume(SceneNode):
             return {}
 
         for area in self._global_container_stack.getProperty("machine_disallowed_areas", "value"):
+            if len(area) == 0:
+                continue  # Numpy doesn't deal well with 0-length arrays, since it can't determine the dimensionality of them.
             polygon = Polygon(numpy.array(area, numpy.float32))
             polygon = polygon.getMinkowskiHull(Polygon.approximatedCircle(border_size))
             machine_disallowed_polygons.append(polygon)

cura/CuraActions.py

@@ -67,11 +67,15 @@ class CuraActions(QObject):
                 current_node = parent_node
                 parent_node = current_node.getParent()
 
-            #   This was formerly done with SetTransformOperation but because of
+            # Find out where the bottom of the object is
-            #   unpredictable matrix deconstruction it was possible that mirrors
+            bbox = current_node.getBoundingBox()
-            #   could manifest as rotations. Centering is therefore done by
+            if bbox:
-            #   moving the node to negative whatever its position is:
+                center_y = current_node.getWorldPosition().y - bbox.bottom
-            center_operation = TranslateOperation(current_node, -current_node._position)
+            else:
+                center_y = 0
+
+            # Move the object so that it's bottom is on to of the buildplate
+            center_operation = TranslateOperation(current_node, Vector(0, center_y, 0), set_position = True)
             operation.addOperation(center_operation)
         operation.push()
 

cura/CuraApplication.py

@@ -129,7 +129,7 @@ class CuraApplication(QtApplication):
     # SettingVersion represents the set of settings available in the machine/extruder definitions.
     # You need to make sure that this version number needs to be increased if there is any non-backwards-compatible
     # changes of the settings.
-    SettingVersion = 16
+    SettingVersion = 17
 
     Created = False
 
@@ -257,6 +257,9 @@ class CuraApplication(QtApplication):
         from cura.CuraPackageManager import CuraPackageManager
         self._package_manager_class = CuraPackageManager
 
+        from UM.CentralFileStorage import CentralFileStorage
+        CentralFileStorage.setIsEnterprise(ApplicationMetadata.IsEnterpriseVersion)
+
     @pyqtProperty(str, constant=True)
     def ultimakerCloudApiRootUrl(self) -> str:
         return UltimakerCloudConstants.CuraCloudAPIRoot
@@ -705,6 +708,8 @@ class CuraApplication(QtApplication):
     @pyqtSlot(str)
     def discardOrKeepProfileChangesClosed(self, option: str) -> None:
         global_stack = self.getGlobalContainerStack()
+        if global_stack is None:
+            return
         if option == "discard":
             for extruder in global_stack.extruderList:
                 extruder.userChanges.clear()
@@ -1526,12 +1531,8 @@ class CuraApplication(QtApplication):
 
         # Compute the center of the objects
         object_centers = []
-        # Forget about the translation that the original objects have
-        zero_translation = Matrix(data=numpy.zeros(3))
         for mesh, node in zip(meshes, group_node.getChildren()):
-            transformation = node.getLocalTransformation()
+            transformed_mesh = mesh.getTransformed(Matrix())  # Forget about the transformations that the original object had.
-            transformation.setTranslation(zero_translation)
-            transformed_mesh = mesh.getTransformed(transformation)
             center = transformed_mesh.getCenterPosition()
             if center is not None:
                 object_centers.append(center)
@@ -1546,7 +1547,7 @@ class CuraApplication(QtApplication):
 
         # Move each node to the same position.
         for mesh, node in zip(meshes, group_node.getChildren()):
-            node.setTransformation(Matrix())
+            node.setTransformation(Matrix())  # Removes any changes in position and rotation.
             # Align the object around its zero position
             # and also apply the offset to center it inside the group.
             node.setPosition(-mesh.getZeroPosition() - offset)
@@ -1867,6 +1868,7 @@ class CuraApplication(QtApplication):
             else:
                 node = CuraSceneNode()
                 node.setMeshData(original_node.getMeshData())
+                node.source_mime_type = original_node.source_mime_type
 
                 # Setting meshdata does not apply scaling.
                 if original_node.getScale() != Vector(1.0, 1.0, 1.0):

cura/Machines/Models/ExtrudersModel.py

@@ -53,6 +53,9 @@ class ExtrudersModel(ListModel):
     EnabledRole = Qt.UserRole + 11
     """Is the extruder enabled?"""
 
+    MaterialTypeRole = Qt.UserRole + 12
+    """The type of the material (e.g. PLA, ABS, PETG, etc.)."""
+
     defaultColors = ["#ffc924", "#86ec21", "#22eeee", "#245bff", "#9124ff", "#ff24c8"]
     """List of colours to display if there is no material or the material has no known colour. """
 
@@ -75,6 +78,7 @@ class ExtrudersModel(ListModel):
         self.addRoleName(self.StackRole, "stack")
         self.addRoleName(self.MaterialBrandRole, "material_brand")
         self.addRoleName(self.ColorNameRole, "color_name")
+        self.addRoleName(self.MaterialTypeRole, "material_type")
         self._update_extruder_timer = QTimer()
         self._update_extruder_timer.setInterval(100)
         self._update_extruder_timer.setSingleShot(True)
@@ -193,7 +197,8 @@ class ExtrudersModel(ListModel):
                     "variant": extruder.variant.getName() if extruder.variant else "",  # e.g. print core
                     "stack": extruder,
                     "material_brand": material_brand,
-                    "color_name": color_name
+                    "color_name": color_name,
+                    "material_type": extruder.material.getMetaDataEntry("material") if extruder.material else "",
                 }
 
                 items.append(item)
@@ -218,6 +223,7 @@ class ExtrudersModel(ListModel):
                     "stack": None,
                     "material_brand": "",
                     "color_name": "",
+                    "material_type": "",
                 }
                 items.append(item)
             if self._items != items:

cura/Machines/Models/MachineModelUtils.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from typing import TYPE_CHECKING
@@ -34,4 +34,4 @@ def fetchLayerHeight(quality_group: "QualityGroup") -> float:
     if isinstance(layer_height, SettingFunction):
         layer_height = layer_height(global_stack)
 
-    return float(layer_height)
+    return round(float(layer_height), 3)

cura/Machines/Models/MaterialManagementModel.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import copy  # To duplicate materials.
@@ -79,6 +79,7 @@ class MaterialManagementModel(QObject):
 
         :param material_node: The material to remove.
         """
+        Logger.info(f"Removing material {material_node.container_id}")
 
         container_registry = CuraContainerRegistry.getInstance()
         materials_this_base_file = container_registry.findContainersMetadata(base_file = material_node.base_file)
@@ -194,6 +195,7 @@ class MaterialManagementModel(QObject):
 
         :return: The root material ID of the duplicate material.
         """
+        Logger.info(f"Duplicating material {material_node.base_file} to {new_base_id}")
         return self.duplicateMaterialByBaseFile(material_node.base_file, new_base_id, new_metadata)
 
     @pyqtSlot(result = str)

cura/Machines/Models/QualitySettingsModel.py

@@ -99,7 +99,7 @@ class QualitySettingsModel(ListModel):
             if self._selected_position == self.GLOBAL_STACK_POSITION:
                 quality_node = quality_group.node_for_global
             else:
-                quality_node = quality_group.nodes_for_extruders.get(str(self._selected_position))
+                quality_node = quality_group.nodes_for_extruders.get(self._selected_position)
             settings_keys = quality_group.getAllKeys()
         quality_containers = []
         if quality_node is not None and quality_node.container is not None:
@@ -114,10 +114,13 @@ class QualitySettingsModel(ListModel):
             global_container = None if len(global_containers) == 0 else global_containers[0]
             extruders_containers = {pos: container_registry.findContainers(id = quality_changes_group.metadata_per_extruder[pos]["id"]) for pos in quality_changes_group.metadata_per_extruder}
             extruders_container = {pos: None if not containers else containers[0] for pos, containers in extruders_containers.items()}
+            quality_changes_metadata = None
             if self._selected_position == self.GLOBAL_STACK_POSITION and global_container:
                 quality_changes_metadata = global_container.getMetaData()
             else:
-                quality_changes_metadata = extruders_container.get(str(self._selected_position))
+                extruder = extruders_container.get(self._selected_position)
+                if extruder:
+                    quality_changes_metadata = extruder.getMetaData()
             if quality_changes_metadata is not None:  # It can be None if number of extruders are changed during runtime.
                 container = container_registry.findContainers(id = quality_changes_metadata["id"])
                 if container:

cura/OAuth2/AuthorizationHelpers.py

@@ -1,12 +1,12 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
+
 from datetime import datetime
 import json
 import random
 from hashlib import sha512
 from base64 import b64encode
-from typing import Optional, Any, Dict, Tuple
+from typing import Optional
-
 import requests
 
 from UM.i18n import i18nCatalog
@@ -115,7 +115,7 @@ class AuthorizationHelpers:
             token_request = requests.get(check_token_url, headers = {
                 "Authorization": "Bearer {}".format(access_token)
             })
-        except requests.exceptions.ConnectionError:
+        except (requests.exceptions.ConnectionError, requests.exceptions.Timeout):
             # Connection was suddenly dropped. Nothing we can do about that.
             Logger.logException("w", "Something failed while attempting to parse the JWT token")
             return None

cura/OAuth2/AuthorizationService.py

@@ -113,8 +113,10 @@ class AuthorizationService:
             # The token could not be refreshed using the refresh token. We should login again.
             return None
         # Ensure it gets stored as otherwise we only have it in memory. The stored refresh token has been deleted
-        # from the server already.
+        # from the server already. Do not store the auth_data if we could not get new auth_data (eg due to a
-        self._storeAuthData(self._auth_data)
+        # network error), since this would cause an infinite loop trying to get new auth-data
+        if self._auth_data.success:
+            self._storeAuthData(self._auth_data)
         return self._auth_helpers.parseJWT(self._auth_data.access_token)
 
     def getAccessToken(self) -> Optional[str]:

cura/OAuth2/KeyringAttribute.py

@@ -4,7 +4,7 @@ from typing import Type, TYPE_CHECKING, Optional, List
 
 import keyring
 from keyring.backend import KeyringBackend
-from keyring.errors import NoKeyringError, PasswordSetError
+from keyring.errors import NoKeyringError, PasswordSetError, KeyringLocked
 
 from UM.Logger import Logger
 
@@ -39,6 +39,10 @@ class KeyringAttribute:
                 self._store_secure = False
                 Logger.logException("w", "No keyring backend present")
                 return getattr(instance, self._name)
+            except KeyringLocked:
+                self._store_secure = False
+                Logger.log("i", "Access to the keyring was denied.")
+                return getattr(instance, self._name)
         else:
             return getattr(instance, self._name)
 
@@ -48,7 +52,7 @@ class KeyringAttribute:
             if value is not None:
                 try:
                     keyring.set_password("cura", self._keyring_name, value)
-                except PasswordSetError:
+                except (PasswordSetError, KeyringLocked):
                     self._store_secure = False
                     if self._name not in DONT_EVER_STORE_LOCALLY:
                         setattr(instance, self._name, value)

cura/Scene/CuraSceneNode.py

@@ -119,21 +119,23 @@ class CuraSceneNode(SceneNode):
         self._aabb = None
         if self._mesh_data:
             self._aabb = self._mesh_data.getExtents(self.getWorldTransformation(copy = False))
-        else:  # If there is no mesh_data, use a bounding box that encompasses the local (0,0,0)
-            position = self.getWorldPosition()
-            self._aabb = AxisAlignedBox(minimum = position, maximum = position)
 
         for child in self.getAllChildren():
             if child.callDecoration("isNonPrintingMesh"):
                 # Non-printing-meshes inside a group should not affect push apart or drop to build plate
                 continue
-            if not child.getMeshData():
+            child_bb = child.getBoundingBox()
-                # Nodes without mesh data should not affect bounding boxes of their parents.
+            if child_bb is None or child_bb.minimum == child_bb.maximum:
+                # Child had a degenerate bounding box, such as an empty group. Don't count it along.
                 continue
             if self._aabb is None:
-                self._aabb = child.getBoundingBox()
+                self._aabb = child_bb
             else:
-                self._aabb = self._aabb + child.getBoundingBox()
+                self._aabb = self._aabb + child_bb
+
+        if self._aabb is None:  # No children that should be included? Just use your own position then, but it's an invalid AABB.
+            position = self.getWorldPosition()
+            self._aabb = AxisAlignedBox(minimum = position, maximum = position)
 
     def __deepcopy__(self, memo: Dict[int, object]) -> "CuraSceneNode":
         """Taken from SceneNode, but replaced SceneNode with CuraSceneNode"""
@@ -142,6 +144,7 @@ class CuraSceneNode(SceneNode):
         copy.setTransformation(self.getLocalTransformation(copy= False))
         copy.setMeshData(self._mesh_data)
         copy.setVisible(cast(bool, deepcopy(self._visible, memo)))
+        copy.source_mime_type = cast(str, deepcopy(self.source_mime_type, memo))
         copy._selectable = cast(bool, deepcopy(self._selectable, memo))
         copy._name = cast(str, deepcopy(self._name, memo))
         for decorator in self._decorators:

cura/Settings/ContainerManager.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import os
@@ -241,6 +241,7 @@ class ContainerManager(QObject):
             file_url = file_url_or_string.toLocalFile()
         else:
             file_url = file_url_or_string
+        Logger.info(f"Importing material from {file_url}")
 
         if not file_url or not os.path.exists(file_url):
             return {"status": "error", "message": "Invalid path"}

cura/UI/WhatsNewPagesModel.py

@@ -29,7 +29,7 @@ class WhatsNewPagesModel(WelcomePagesModel):
                 for filename in files:
                     basename = os.path.basename(filename)
                     base, ext = os.path.splitext(basename)
-                    if ext not in include or not base.isdigit():
+                    if ext.lower() not in include or not base.isdigit():
                         continue
                     page_no = int(base)
                     highest = max(highest, page_no)

cura_app.py

@@ -16,14 +16,6 @@ import argparse
 import faulthandler
 import os
 
-# Workaround for a race condition on certain systems where there
-# is a race condition between Arcus and PyQt. Importing Arcus
-# first seems to prevent Sip from going into a state where it
-# tries to create PyQt objects on a non-main thread.
-import Arcus  # @UnusedImport
-import Savitar  # @UnusedImport
-import pynest2d # @UnusedImport
-
 from PyQt5.QtNetwork import QSslConfiguration, QSslSocket
 
 from UM.Platform import Platform

plugins/3MFReader/ThreeMFWorkspaceReader.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from configparser import ConfigParser
@@ -412,7 +412,12 @@ class ThreeMFWorkspaceReader(WorkspaceReader):
         quality_container_id = parser["containers"][str(_ContainerIndexes.Quality)]
         quality_type = "empty_quality"
         if quality_container_id not in ("empty", "empty_quality"):
-            quality_type = instance_container_info_dict[quality_container_id].parser["metadata"]["quality_type"]
+            if quality_container_id in instance_container_info_dict:
+                quality_type = instance_container_info_dict[quality_container_id].parser["metadata"]["quality_type"]
+            else:  # If a version upgrade changed the quality profile in the stack, we'll need to look for it in the built-in profiles instead of the workspace.
+                quality_matches = ContainerRegistry.getInstance().findContainersMetadata(id = quality_container_id)
+                if quality_matches:  # If there's no profile with this ID, leave it empty_quality.
+                    quality_type = quality_matches[0]["quality_type"]
 
         # Get machine info
         serialized = archive.open(global_stack_file).read().decode("utf-8")

plugins/3MFReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for reading 3MF files.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/3MFWriter/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for writing 3MF files.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/AMFReader/plugin.json

@@ -3,5 +3,5 @@
     "author": "fieldOfView",
     "version": "1.0.0",
     "description": "Provides support for reading AMF files.",
-    "api": "7.5.0"
+    "api": 7
 }

plugins/CuraDrive/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "description": "Backup and restore your configuration.",
     "version": "1.2.0",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/CuraDrive/src/CreateBackupJob.py

@@ -5,7 +5,6 @@ import threading
 from datetime import datetime
 from typing import Any, Dict, Optional
 
-import sentry_sdk
 from PyQt5.QtNetwork import QNetworkReply
 
 from UM.Job import Job
@@ -99,13 +98,7 @@ class CreateBackupJob(Job):
             if HttpRequestManager.safeHttpStatus(reply) == 400:
                 errors = json.loads(replyText)["errors"]
                 if "moreThanMaximum" in [error["code"] for error in errors if error["meta"] and error["meta"]["field_name"] == "backup_size"]:
-                    if self._backup_zip is None:  # will never happen; keep mypy happy
-                        zip_error = "backup is None."
-                    else:
-                        zip_error = "{} exceeds max size.".format(str(len(self._backup_zip)))
-                    sentry_sdk.capture_message("backup failed: {}".format(zip_error), level ="warning")
                     self.backup_upload_error_message = catalog.i18nc("@error:file_size", "The backup exceeds the maximum file size.")
-                    from sentry_sdk import capture_message
 
             self._job_done.set()
             return

plugins/CuraDrive/src/DriveApiService.py

@@ -93,7 +93,7 @@ class DriveApiService:
     def _onRestoreFinished(self, job: "RestoreBackupJob") -> None:
         if job.restore_backup_error_message != "":
             # If the job contains an error message we pass it along so the UI can display it.
-            self.restoringStateChanged.emit(is_restoring=False)
+            self.restoringStateChanged.emit(is_restoring = False)
         else:
             self.restoringStateChanged.emit(is_restoring = False, error_message = job.restore_backup_error_message)
 

plugins/CuraDrive/src/DrivePluginExtension.py

@@ -34,6 +34,9 @@ class DrivePluginExtension(QObject, Extension):
     # Signal emitted when preferences changed (like auto-backup).
     preferencesChanged = pyqtSignal()
 
+    # Signal emitted when the id of the backup-to-be-restored is changed
+    backupIdBeingRestoredChanged = pyqtSignal(arguments = ["backup_id_being_restored"])
+
     DATE_FORMAT = "%d/%m/%Y %H:%M:%S"
 
     def __init__(self) -> None:
@@ -45,6 +48,7 @@ class DrivePluginExtension(QObject, Extension):
         self._backups = []  # type: List[Dict[str, Any]]
         self._is_restoring_backup = False
         self._is_creating_backup = False
+        self._backup_id_being_restored = ""
 
         # Initialize services.
         preferences = CuraApplication.getInstance().getPreferences()
@@ -52,6 +56,7 @@ class DrivePluginExtension(QObject, Extension):
 
         # Attach signals.
         CuraApplication.getInstance().getCuraAPI().account.loginStateChanged.connect(self._onLoginStateChanged)
+        CuraApplication.getInstance().applicationShuttingDown.connect(self._onApplicationShuttingDown)
         self._drive_api_service.restoringStateChanged.connect(self._onRestoringStateChanged)
         self._drive_api_service.creatingStateChanged.connect(self._onCreatingStateChanged)
 
@@ -75,6 +80,10 @@ class DrivePluginExtension(QObject, Extension):
         if self._drive_window:
             self._drive_window.show()
 
+    def _onApplicationShuttingDown(self):
+        if self._drive_window:
+            self._drive_window.hide()
+
     def _autoBackup(self) -> None:
         preferences = CuraApplication.getInstance().getPreferences()
         if preferences.getValue(Settings.AUTO_BACKUP_ENABLED_PREFERENCE_KEY) and self._isLastBackupTooLongAgo():
@@ -100,10 +109,11 @@ class DrivePluginExtension(QObject, Extension):
         if logged_in:
             self.refreshBackups()
 
-    def _onRestoringStateChanged(self, is_restoring: bool = False, error_message: str = None) -> None:
+    def _onRestoringStateChanged(self, is_restoring: bool = False, error_message: Optional[str] = None) -> None:
         self._is_restoring_backup = is_restoring
         self.restoringStateChanged.emit()
         if error_message:
+            self.backupIdBeingRestored = ""
             Message(error_message, title = catalog.i18nc("@info:title", "Backup")).show()
 
     def _onCreatingStateChanged(self, is_creating: bool = False, error_message: str = None) -> None:
@@ -152,6 +162,7 @@ class DrivePluginExtension(QObject, Extension):
         for backup in self._backups:
             if backup.get("backup_id") == backup_id:
                 self._drive_api_service.restoreBackup(backup)
+                self.setBackupIdBeingRestored(backup_id)
                 return
         Logger.log("w", "Unable to find backup with the ID %s", backup_id)
 
@@ -166,3 +177,12 @@ class DrivePluginExtension(QObject, Extension):
     def _backupDeletedCallback(self, success: bool):
         if success:
             self.refreshBackups()
+
+    def setBackupIdBeingRestored(self, backup_id_being_restored: str) -> None:
+        if backup_id_being_restored != self._backup_id_being_restored:
+            self._backup_id_being_restored = backup_id_being_restored
+            self.backupIdBeingRestoredChanged.emit()
+
+    @pyqtProperty(str, fset = setBackupIdBeingRestored, notify = backupIdBeingRestoredChanged)
+    def backupIdBeingRestored(self) -> str:
+        return self._backup_id_being_restored

plugins/CuraDrive/src/qml/components/BackupListItem.qml

@@ -71,6 +71,7 @@ Item
             text: catalog.i18nc("@button", "Restore")
             enabled: !CuraDrive.isCreatingBackup && !CuraDrive.isRestoringBackup
             onClicked: confirmRestoreDialog.visible = true
+            busy: CuraDrive.backupIdBeingRestored == modelData.backup_id && CuraDrive.isRestoringBackup
         }
 
         UM.SimpleButton

plugins/CuraDrive/src/qml/components/BackupListItemDetails.qml

@@ -17,7 +17,7 @@ ColumnLayout
     // Cura version
     BackupListItemDetailsRow
     {
-        iconSource: UM.Theme.getIcon("UltimakeCura")
+        iconSource: UM.Theme.getIcon("UltimakerCura")
         label: catalog.i18nc("@backuplist:label", "Cura Version")
         value: backupDetailsData.metadata.cura_release
     }

plugins/CuraEngineBackend/plugin.json

@@ -2,7 +2,7 @@
     "name": "CuraEngine Backend",
     "author": "Ultimaker B.V.",
     "description": "Provides the link to the CuraEngine slicing backend.",
-    "api": "7.5.0",
+    "api": 7,
     "version": "1.0.1",
     "i18n-catalog": "cura"
 }

plugins/CuraProfileReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for importing Cura profiles.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/CuraProfileWriter/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for exporting Cura profiles.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog":"cura"
 }

plugins/DigitalLibrary/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "description": "Connects to the Digital Library, allowing Cura to open files from and save files to the Digital Library.",
     "version": "1.0.0",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/DigitalLibrary/resources/qml/OpenProjectFilesPage.qml

@@ -65,6 +65,11 @@ Item
             model: manager.digitalFactoryFileModel
             visible: model.count != 0 && manager.retrievingFileStatus != DF.RetrievalStatus.InProgress
             selectionMode: OldControls.SelectionMode.SingleSelection
+            onDoubleClicked:
+            {
+                manager.setSelectedFileIndices([row]);
+                openFilesButton.clicked();
+            }
 
             OldControls.TableViewColumn
             {

plugins/DigitalLibrary/src/DigitalFactoryController.py

@@ -385,6 +385,11 @@ class DigitalFactoryController(QObject):
     def _applicationInitializationFinished(self) -> None:
         self._supported_file_types = self._application.getInstance().getMeshFileHandler().getSupportedFileTypesRead()
 
+        # Although Cura supports these, it's super confusing in this context to show them.
+        for extension in ["jpg", "jpeg", "png", "bmp", "gif"]:
+            if extension in self._supported_file_types:
+                del self._supported_file_types[extension]
+
     @pyqtSlot()
     def openSelectedFiles(self) -> None:
         """ Downloads, then opens all files selected in the Qt frontend open dialog.

plugins/DigitalLibrary/tests/conftest.py

@@ -1,8 +1,3 @@
-# Prevents error: "PyCapsule_GetPointer called with incorrect name" with conflicting SIP configurations between Arcus and PyQt: Import custom Sip bindings first!
-import Savitar  # Dont remove this line
-import Arcus  # No really. Don't. It needs to be there!
-import pynest2d  # Really!
-
 
 # Ensure that the importing for all tests work
 import sys

plugins/FirmwareUpdateChecker/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Checks for firmware updates.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/FirmwareUpdater/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides a machine actions for updating firmware.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/GCodeGzReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Reads g-code from a compressed archive.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/GCodeGzWriter/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Writes g-code to a compressed archive.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/GCodeProfileReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for importing profiles from g-code files.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/GCodeReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Victor Larchenko, Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Allows loading and displaying G-code files.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/GCodeWriter/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Writes g-code to a file.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/ImageReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Enables ability to generate printable geometry from 2D image files.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/LegacyProfileReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for importing profiles from legacy Cura versions.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/MachineSettingsAction/plugin.json

@@ -3,6 +3,6 @@
     "author": "fieldOfView, Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides a way to change machine settings (such as build volume, nozzle size, etc.).",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/ModelChecker/plugin.json

@@ -2,7 +2,7 @@
     "name": "Model Checker",
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
-    "api": "7.5.0",
+    "api": 7,
     "description": "Checks models and print configuration for possible printing issues and give suggestions.",
     "i18n-catalog": "cura"
 }

plugins/MonitorStage/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides a monitor stage in Cura.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/PerObjectSettingsTool/PerObjectSettingVisibilityHandler.py

@@ -73,38 +73,40 @@ class PerObjectSettingVisibilityHandler(UM.Settings.Models.SettingVisibilityHand
 
         # Add all instances that are not added, but are in visibility list
         for item in visible:
-            if settings.getInstance(item) is None:  # Setting was not added already.
+            if settings.getInstance(item) is not None:  # Setting was added already.
-                definition = self._stack.getSettingDefinition(item)
+                continue
-                if definition:
+            definition = self._stack.getSettingDefinition(item)
-                    new_instance = SettingInstance(definition, settings)
+            if not definition:
+                Logger.log("w", f"Unable to add instance ({item}) to per-object visibility because we couldn't find the matching definition.")
+                continue
+
+            new_instance = SettingInstance(definition, settings)
+            stack_nr = -1
+            stack = None
+            # Check from what stack we should copy the raw property of the setting from.
+            if self._stack.getProperty("machine_extruder_count", "value") > 1:
+                if definition.limit_to_extruder != "-1":
+                    # A limit to extruder function was set and it's a multi extrusion machine. Check what stack we do need to use.
+                    stack_nr = str(int(round(float(self._stack.getProperty(item, "limit_to_extruder")))))
+
+                # Check if the found stack_number is in the extruder list of extruders.
+                if stack_nr not in ExtruderManager.getInstance().extruderIds and self._stack.getProperty("extruder_nr", "value") is not None:
                     stack_nr = -1
-                    stack = None
-                    # Check from what stack we should copy the raw property of the setting from.
-                    if self._stack.getProperty("machine_extruder_count", "value") > 1:
-                        if definition.limit_to_extruder != "-1":
-                            # A limit to extruder function was set and it's a multi extrusion machine. Check what stack we do need to use.
-                            stack_nr = str(int(round(float(self._stack.getProperty(item, "limit_to_extruder")))))
 
-                        # Check if the found stack_number is in the extruder list of extruders.
+                # Use the found stack number to get the right stack to copy the value from.
-                        if stack_nr not in ExtruderManager.getInstance().extruderIds and self._stack.getProperty("extruder_nr", "value") is not None:
+                if stack_nr in ExtruderManager.getInstance().extruderIds:
-                            stack_nr = -1
+                    stack = ContainerRegistry.getInstance().findContainerStacks(id = ExtruderManager.getInstance().extruderIds[stack_nr])[0]
+            else:
+                stack = self._stack
 
-                        # Use the found stack number to get the right stack to copy the value from.
+            # Use the raw property to set the value (so the inheritance doesn't break)
-                        if stack_nr in ExtruderManager.getInstance().extruderIds:
+            if stack is not None:
-                            stack = ContainerRegistry.getInstance().findContainerStacks(id = ExtruderManager.getInstance().extruderIds[stack_nr])[0]
+                new_instance.setProperty("value", stack.getRawProperty(item, "value"))
-                    else:
+            else:
-                        stack = self._stack
+                new_instance.setProperty("value", None)
-
+            new_instance.resetState()  # Ensure that the state is not seen as a user state.
-                    # Use the raw property to set the value (so the inheritance doesn't break)
+            settings.addInstance(new_instance)
-                    if stack is not None:
+            visibility_changed = True
-                        new_instance.setProperty("value", stack.getRawProperty(item, "value"))
-                    else:
-                        new_instance.setProperty("value", None)
-                    new_instance.resetState()  # Ensure that the state is not seen as a user state.
-                    settings.addInstance(new_instance)
-                    visibility_changed = True
-                else:
-                    Logger.log("w", "Unable to add instance (%s) to per-object visibility because we couldn't find the matching definition", item)
 
         if visibility_changed:
             self.visibilityChanged.emit()

plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml

@@ -1,4 +1,4 @@
-// Copyright (c) 2017 Ultimaker B.V.
+// Copyright (c) 2021 Ultimaker B.V.
 // Uranium is released under the terms of the LGPLv3 or higher.
 
 import QtQuick 2.2
@@ -116,7 +116,7 @@ Item
             {
                 id: antiOverhangMeshButton
                 text:  catalog.i18nc("@label", "Don't support overlaps")
-                iconSource: UM.Theme.getIcon("MeshTypeExclude");
+                iconSource: UM.Theme.getIcon("BlockSupportOverlaps");
                 property bool needBorder: true
                 checkable: true
                 onClicked: setMeshType(antiOverhangMeshType)
@@ -136,10 +136,12 @@ Item
         }
 
 
-        ComboBox
+        Cura.ComboBox
         {
             id: infillOnlyComboBox
             width: parent.width / 2 - UM.Theme.getSize("default_margin").width
+            height: UM.Theme.getSize("setting_control").height
+            textRole: "text"
 
             model: ListModel
             {

plugins/PerObjectSettingsTool/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides the Per Model Settings.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/PostProcessingPlugin/Script.svg

@@ -1,10 +1,6 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+	<polygon points="4.4,12 8.2,15.8 6.8,17.2 1.6,12 6.8,6.8 8.2,8.2" />
-<g>
+	<polygon points="22.4,12 17.2,17.2 15.8,15.8 19.6,12 15.8,8.2 17.2,6.8" />
-	<polygon style="fill:#1D1C1A;" points="4.4,12 8.2,15.8 6.8,17.2 1.6,12 6.8,6.8 8.2,8.2 	"/>
+	<rect x="3.9" y="11" transform="matrix(0.1236 -0.9923 0.9923 0.1236 -1.429 22.4317)" width="16.1" height="2" />
-	<polygon style="fill:#1D1C1A;" points="22.4,12 17.2,17.2 15.8,15.8 19.6,12 15.8,8.2 17.2,6.8 	"/>
-	
-		<rect x="3.9" y="11" transform="matrix(0.1236 -0.9923 0.9923 0.1236 -1.429 22.4317)" style="fill:#1D1C1A;" width="16.1" height="2"/>
-</g>
 </svg>

plugins/PostProcessingPlugin/__init__.py

@@ -1,14 +1,6 @@
 # Copyright (c) 2020 Jaime van Kessel, Ultimaker B.V.
 # The PostProcessingPlugin is released under the terms of the AGPLv3 or higher.
 
-# Workaround for a race condition on certain systems where there
-# is a race condition between Arcus and PyQt. Importing Arcus
-# first seems to prevent Sip from going into a state where it
-# tries to create PyQt objects on a non-main thread.
-import Arcus  # @UnusedImport
-import Savitar  # @UnusedImport
-import pynest2d  # @UnusedImport
-
 from . import PostProcessingPlugin
 
 

plugins/PostProcessingPlugin/plugin.json

@@ -2,7 +2,7 @@
     "name": "Post Processing",
     "author": "Ultimaker",
     "version": "2.2.1",
-    "api": "7.5.0",
+    "api": 7,
     "description": "Extension that allows for user created scripts for post processing",
     "catalog": "cura"
 }

plugins/PostProcessingPlugin/scripts/FilamentChange.py

@@ -72,6 +72,15 @@ class FilamentChange(Script):
                     "type": "float",
                     "default_value": 0,
                     "enabled": "not firmware_config"
+                },
+                "z_position":
+                {
+                    "label": "Z Position (relative)",
+                    "description": "Extruder relative Z position. Move the print head up for filament change.",
+                    "unit": "mm",
+                    "type": "float",
+                    "default_value": 0,
+                    "minimum_value": 0
                 }
             }
         }"""
@@ -87,6 +96,7 @@ class FilamentChange(Script):
         later_retract = self.getSettingValueByKey("later_retract")
         x_pos = self.getSettingValueByKey("x_position")
         y_pos = self.getSettingValueByKey("y_position")
+        z_pos = self.getSettingValueByKey("z_position")
         firmware_config = self.getSettingValueByKey("firmware_config")
 
         color_change = "M600"
@@ -100,10 +110,13 @@ class FilamentChange(Script):
 
             if x_pos is not None:
                 color_change = color_change + (" X%.2f" % x_pos)
-
+                
             if y_pos is not None:
                 color_change = color_change + (" Y%.2f" % y_pos)
                 
+            if z_pos is not None and z_pos > 0.:
+                color_change = color_change + (" Z%.2f" % z_pos)
+
         color_change = color_change + " ; Generated by FilamentChange plugin\n"
 
         layer_targets = layer_nums.split(",")
@@ -116,4 +129,4 @@ class FilamentChange(Script):
                 if 0 < layer_num < len(data):
                     data[layer_num] = color_change + data[layer_num]
 
-        return data
+        return data

plugins/PostProcessingPlugin/scripts/PauseAtHeight.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 from ..Script import Script
@@ -387,7 +387,7 @@ class PauseAtHeight(Script):
                     #Retraction
                     prepend_gcode += self.putValue(M = 83) + " ; switch to relative E values for any needed retraction\n"
                     if retraction_amount != 0:
-                        prepend_gcode += self.putValue(G = 1, E = retraction_amount, F = 6000) + "\n"
+                        prepend_gcode += self.putValue(G = 1, E = -retraction_amount, F = 6000) + "\n"
 
                     #Move the head away
                     prepend_gcode += self.putValue(G = 1, Z = current_z + 1, F = 300) + " ; move up a millimeter to get out of the way\n"
@@ -507,10 +507,23 @@ class PauseAtHeight(Script):
                     else:
                         Logger.log("w", "No previous feedrate found in gcode, feedrate for next layer(s) might be incorrect")
 
-                    prepend_gcode += self.putValue(M = 82) + " ; switch back to absolute E values\n"
+                    extrusion_mode_string = "absolute"
+                    extrusion_mode_numeric = 82
 
-                # reset extrude value to pre pause value
+                    relative_extrusion = Application.getInstance().getGlobalContainerStack().getProperty("relative_extrusion", "value")
-                prepend_gcode += self.putValue(G = 92, E = current_e) + "\n"
+                    if relative_extrusion:
+                        extrusion_mode_string = "relative"
+                        extrusion_mode_numeric = 83
+
+                    prepend_gcode += self.putValue(M = extrusion_mode_numeric) + " ; switch back to " + extrusion_mode_string + " E values\n"
+
+                    # reset extrude value to pre pause value
+                    prepend_gcode += self.putValue(G = 92, E = current_e) + "\n"
+
+                elif redo_layer:
+                    # All other options reset the E value to what it was before the pause because E things were added.
+                    # If it's not yet reset, it still needs to be reset if there were any redo layers.
+                    prepend_gcode += self.putValue(G = 92, E = current_e) + "\n"
 
                 layer = prepend_gcode + layer
 

plugins/PrepareStage/PrepareMenu.qml

@@ -8,7 +8,6 @@ import QtQuick.Controls 2.3
 import UM 1.3 as UM
 import Cura 1.1 as Cura
 
-import QtGraphicalEffects 1.0 // For the dropshadow
 
 Item
 {
@@ -42,42 +41,34 @@ Item
             anchors.left: openFileButton.right
             anchors.right: parent.right
             anchors.leftMargin: UM.Theme.getSize("default_margin").width
+            property int machineSelectorWidth: Math.round((width - printSetupSelectorItem.width) / 3)
 
             height: parent.height
-            spacing: 0
+            // This is a trick to make sure that the borders of the two adjacent buttons' borders overlap. Otherwise
+            // there will be double border (one from each button)
+            spacing: -UM.Theme.getSize("default_lining").width
 
             Cura.MachineSelector
             {
                 id: machineSelection
                 headerCornerSide: Cura.RoundedRectangle.Direction.Left
-                Layout.minimumWidth: UM.Theme.getSize("machine_selector_widget").width
+                headerBackgroundBorder.width: UM.Theme.getSize("default_lining").width
-                Layout.maximumWidth: UM.Theme.getSize("machine_selector_widget").width
+                headerBackgroundBorder.color: UM.Theme.getColor("lining")
+                enableHeaderShadow: false
+                Layout.preferredWidth: parent.machineSelectorWidth
                 Layout.fillWidth: true
                 Layout.fillHeight: true
             }
 
-            // Separator line
-            Rectangle
-            {
-                height: parent.height
-                width: UM.Theme.getSize("default_lining").width
-                color: UM.Theme.getColor("lining")
-            }
-
             Cura.ConfigurationMenu
             {
                 id: printerSetup
+                enableHeaderShadow: false
+                headerBackgroundBorder.width: UM.Theme.getSize("default_lining").width
+                headerBackgroundBorder.color: UM.Theme.getColor("lining")
                 Layout.fillHeight: true
                 Layout.fillWidth: true
-                Layout.preferredWidth: itemRow.width - machineSelection.width - printSetupSelectorItem.width - 2 * UM.Theme.getSize("default_lining").width
+                Layout.preferredWidth: parent.machineSelectorWidth * 2
-            }
-
-            // Separator line
-            Rectangle
-            {
-                height: parent.height
-                width: UM.Theme.getSize("default_lining").width
-                color: UM.Theme.getColor("lining")
             }
 
             Item
@@ -120,24 +111,12 @@ Item
                 id: background
                 height: UM.Theme.getSize("stage_menu").height
                 width: UM.Theme.getSize("stage_menu").height
+                border.color: UM.Theme.getColor("lining")
+                border.width: UM.Theme.getSize("default_lining").width
 
                 radius: UM.Theme.getSize("default_radius").width
                 color: openFileButton.hovered ? UM.Theme.getColor("action_button_hovered") : UM.Theme.getColor("action_button")
             }
-
-            DropShadow
-            {
-                id: shadow
-                // Don't blur the shadow
-                radius: 0
-                anchors.fill: background
-                source: background
-                verticalOffset: 2
-                visible: true
-                color: UM.Theme.getColor("action_button_shadow")
-                // Should always be drawn behind the background.
-                z: background.z - 1
-            }
         }
     }
 }

plugins/PrepareStage/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides a prepare stage in Cura.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/PreviewStage/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides a preview stage in Cura.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/RemovableDriveOutputDevice/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "description": "Provides removable drive hotplugging and writing support.",
     "version": "1.0.1",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/SentryLogger/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.0",
     "description": "Logs certain events so that they can be used by the crash reporter",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/SimulationView/SimulationPass.py

@@ -65,7 +65,7 @@ class SimulationPass(RenderPass):
         self._layer_shader.setUniformValue("u_active_extruder", float(max(0, self._extruder_manager.activeExtruderIndex)))
         if not self._compatibility_mode:
             self._layer_shader.setUniformValue("u_starts_color", Color(*Application.getInstance().getTheme().getColor("layerview_starts").getRgb()))
-            
+
         if self._layer_view:
             self._layer_shader.setUniformValue("u_max_feedrate", self._layer_view.getMaxFeedrate())
             self._layer_shader.setUniformValue("u_min_feedrate", self._layer_view.getMinFeedrate())
@@ -73,6 +73,8 @@ class SimulationPass(RenderPass):
             self._layer_shader.setUniformValue("u_min_thickness", self._layer_view.getMinThickness())
             self._layer_shader.setUniformValue("u_max_line_width", self._layer_view.getMaxLineWidth())
             self._layer_shader.setUniformValue("u_min_line_width", self._layer_view.getMinLineWidth())
+            self._layer_shader.setUniformValue("u_max_flow_rate", self._layer_view.getMaxFlowRate())
+            self._layer_shader.setUniformValue("u_min_flow_rate", self._layer_view.getMinFlowRate())
             self._layer_shader.setUniformValue("u_layer_view_type", self._layer_view.getSimulationViewType())
             self._layer_shader.setUniformValue("u_extruder_opacity", self._layer_view.getExtruderOpacities())
             self._layer_shader.setUniformValue("u_show_travel_moves", self._layer_view.getShowTravelMoves())
@@ -86,6 +88,8 @@ class SimulationPass(RenderPass):
             self._layer_shader.setUniformValue("u_min_feedrate", 0)
             self._layer_shader.setUniformValue("u_max_thickness", 1)
             self._layer_shader.setUniformValue("u_min_thickness", 0)
+            self._layer_shader.setUniformValue("u_max_flow_rate", 1)
+            self._layer_shader.setUniformValue("u_min_flow_rate", 0)
             self._layer_shader.setUniformValue("u_max_line_width", 1)
             self._layer_shader.setUniformValue("u_min_line_width", 0)
             self._layer_shader.setUniformValue("u_layer_view_type", 1)
@@ -174,9 +178,9 @@ class SimulationPass(RenderPass):
                         self._switching_layers = True
 
                     # The first line does not have a previous line: add a MoveCombingType in front for start detection
-                    # this way the first start of the layer can also be drawn 
+                    # this way the first start of the layer can also be drawn
                     prev_line_types = numpy.concatenate([numpy.asarray([LayerPolygon.MoveCombingType], dtype = numpy.float32), layer_data._attributes["line_types"]["value"]])
-                    # Remove the last element 
+                    # Remove the last element
                     prev_line_types = prev_line_types[0:layer_data._attributes["line_types"]["value"].size]
                     layer_data._attributes["prev_line_types"] =  {'opengl_type': 'float', 'value': prev_line_types, 'opengl_name': 'a_prev_line_type'}
 

plugins/SimulationView/SimulationView.py

@@ -94,6 +94,8 @@ class SimulationView(CuraView):
         self._min_thickness = sys.float_info.max
         self._max_line_width = sys.float_info.min
         self._min_line_width = sys.float_info.max
+        self._min_flow_rate = sys.float_info.max
+        self._max_flow_rate = sys.float_info.min
 
         self._global_container_stack = None  # type: Optional[ContainerStack]
         self._proxy = None
@@ -411,6 +413,14 @@ class SimulationView(CuraView):
             return 0.0  # If it's still max-float, there are no measurements. Use 0 then.
         return self._min_line_width
 
+    def getMaxFlowRate(self) -> float:
+        return self._max_flow_rate
+
+    def getMinFlowRate(self) -> float:
+        if abs(self._min_flow_rate - sys.float_info.max) < 10:  # Some lenience due to floating point rounding.
+            return 0.0  # If it's still max-float, there are no measurements. Use 0 then.
+        return self._min_flow_rate
+
     def calculateMaxLayers(self) -> None:
         """
         Calculates number of layers, triggers signals if the number of layers changed and makes sure the top layers are
@@ -468,6 +478,8 @@ class SimulationView(CuraView):
         old_max_linewidth = self._max_line_width
         old_min_thickness = self._min_thickness
         old_max_thickness = self._max_thickness
+        old_min_flow_rate = self._min_flow_rate
+        old_max_flow_rate = self._max_flow_rate
 
         self._min_feedrate = sys.float_info.max
         self._max_feedrate = sys.float_info.min
@@ -475,6 +487,8 @@ class SimulationView(CuraView):
         self._max_line_width = sys.float_info.min
         self._min_thickness = sys.float_info.max
         self._max_thickness = sys.float_info.min
+        self._min_flow_rate = sys.float_info.max
+        self._max_flow_rate = sys.float_info.min
 
         # The colour scheme is only influenced by the visible lines, so filter the lines by if they should be visible.
         visible_line_types = []
@@ -490,6 +504,7 @@ class SimulationView(CuraView):
             visible_line_types.append(LayerPolygon.SupportType)
             visible_line_types.append(LayerPolygon.SupportInfillType)
             visible_line_types.append(LayerPolygon.SupportInterfaceType)
+        visible_line_types_with_extrusion = visible_line_types.copy()  # Copy before travel moves are added
         if self.getShowTravelMoves():
             visible_line_types.append(LayerPolygon.MoveCombingType)
             visible_line_types.append(LayerPolygon.MoveRetractionType)
@@ -503,12 +518,20 @@ class SimulationView(CuraView):
                 for polyline in layer_data.getLayer(layer_index).polygons:
                     is_visible = numpy.isin(polyline.types, visible_line_types)
                     visible_indices = numpy.where(is_visible)[0]
+                    visible_indicies_with_extrusion = numpy.where(numpy.isin(polyline.types, visible_line_types_with_extrusion))[0]
                     if visible_indices.size == 0:  # No items to take maximum or minimum of.
                         continue
                     visible_feedrates = numpy.take(polyline.lineFeedrates, visible_indices)
+                    visible_feedrates_with_extrusion = numpy.take(polyline.lineFeedrates, visible_indicies_with_extrusion)
                     visible_linewidths = numpy.take(polyline.lineWidths, visible_indices)
+                    visible_linewidths_with_extrusion = numpy.take(polyline.lineWidths, visible_indicies_with_extrusion)
                     visible_thicknesses = numpy.take(polyline.lineThicknesses, visible_indices)
+                    visible_thicknesses_with_extrusion = numpy.take(polyline.lineThicknesses, visible_indicies_with_extrusion)
                     self._max_feedrate = max(float(visible_feedrates.max()), self._max_feedrate)
+                    if visible_feedrates_with_extrusion.size != 0:
+                        flow_rates = visible_feedrates_with_extrusion * visible_linewidths_with_extrusion * visible_thicknesses_with_extrusion
+                        self._min_flow_rate = min(float(flow_rates.min()), self._min_flow_rate)
+                        self._max_flow_rate = max(float(flow_rates.max()), self._max_flow_rate)
                     self._min_feedrate = min(float(visible_feedrates.min()), self._min_feedrate)
                     self._max_line_width = max(float(visible_linewidths.max()), self._max_line_width)
                     self._min_line_width = min(float(visible_linewidths.min()), self._min_line_width)
@@ -517,11 +540,12 @@ class SimulationView(CuraView):
                         self._min_thickness = min(float(visible_thicknesses[numpy.nonzero(visible_thicknesses)].min()), self._min_thickness)
                     except ValueError:
                         # Sometimes, when importing a GCode the line thicknesses are zero and so the minimum (avoiding the zero) can't be calculated.
-                        Logger.log("i", "Min thickness can't be calculated because all the values are zero")
+                        Logger.log("w", "Min thickness can't be calculated because all the values are zero")
 
         if old_min_feedrate != self._min_feedrate or old_max_feedrate != self._max_feedrate \
                 or old_min_linewidth != self._min_line_width or old_max_linewidth != self._max_line_width \
-                or old_min_thickness != self._min_thickness or old_max_thickness != self._max_thickness:
+                or old_min_thickness != self._min_thickness or old_max_thickness != self._max_thickness \
+                or old_min_flow_rate != self._min_flow_rate or old_max_flow_rate != self._max_flow_rate:
             self.colorSchemeLimitsChanged.emit()
 
     def calculateMaxPathsOnLayer(self, layer_num: int) -> None:

plugins/SimulationView/SimulationViewMenuComponent.qml

@@ -90,6 +90,7 @@ Cura.ExpandableComponent
         property bool show_feedrate_gradient: show_gradient && UM.Preferences.getValue("layerview/layer_view_type") == 2
         property bool show_thickness_gradient: show_gradient && UM.Preferences.getValue("layerview/layer_view_type") == 3
         property bool show_line_width_gradient: show_gradient && UM.Preferences.getValue("layerview/layer_view_type") == 4
+        property bool show_flow_rate_gradient: show_gradient && UM.Preferences.getValue("layerview/layer_view_type") == 5
         property bool only_show_top_layers: UM.Preferences.getValue("view/only_show_top_layers")
         property int top_layer_count: UM.Preferences.getValue("view/top_layer_count")
 
@@ -125,6 +126,10 @@ Cura.ExpandableComponent
                 text: catalog.i18nc("@label:listbox", "Line Width"),
                 type_id: 4
             })
+            layerViewTypes.append({
+                text: catalog.i18nc("@label:listbox", "Flow"),
+                type_id: 5
+            })
         }
 
         ComboBox
@@ -150,10 +155,13 @@ Cura.ExpandableComponent
             {
                 // Update the visibility of the legends.
                 viewSettings.show_legend = UM.SimulationView.compatibilityMode || (type_id == 1);
-                viewSettings.show_gradient = !UM.SimulationView.compatibilityMode && (type_id == 2 || type_id == 3 || type_id == 4);
+                viewSettings.show_gradient = !UM.SimulationView.compatibilityMode &&
+                  (type_id == 2 || type_id == 3 || type_id == 4 || type_id == 5) ;
+
                 viewSettings.show_feedrate_gradient = viewSettings.show_gradient && (type_id == 2);
                 viewSettings.show_thickness_gradient = viewSettings.show_gradient && (type_id == 3);
                 viewSettings.show_line_width_gradient = viewSettings.show_gradient && (type_id == 4);
+                viewSettings.show_flow_rate_gradient = viewSettings.show_gradient && (type_id == 5);
             }
         }
 
@@ -396,11 +404,17 @@ Cura.ExpandableComponent
                         {
                             return parseFloat(UM.SimulationView.minThickness).toFixed(2)
                         }
-                        //Line width selected
+                        // Line width selected
                         if(UM.Preferences.getValue("layerview/layer_view_type") == 4)
                         {
                             return parseFloat(UM.SimulationView.minLineWidth).toFixed(2);
                         }
+                        // Flow Rate selected
+                        if(UM.Preferences.getValue("layerview/layer_view_type") == 5)
+                        {
+                            return parseFloat(UM.SimulationView.minFlowRate).toFixed(2);
+                        }
+
                     }
                     return catalog.i18nc("@label","min")
                 }
@@ -431,6 +445,11 @@ Cura.ExpandableComponent
                         {
                             return "mm"
                         }
+                        // Flow Rate selected
+                        if (UM.Preferences.getValue("layerview/layer_view_type") == 5)
+                        {
+                            return "mm³/s"
+                        }
                     }
                     return ""
                 }
@@ -460,6 +479,11 @@ Cura.ExpandableComponent
                         {
                             return parseFloat(UM.SimulationView.maxLineWidth).toFixed(2);
                         }
+                        // Flow rate selected
+                        if(UM.Preferences.getValue("layerview/layer_view_type") == 5)
+                        {
+                            return parseFloat(UM.SimulationView.maxFlowRate).toFixed(2);
+                        }
                     }
                     return catalog.i18nc("@label","max")
                 }
@@ -474,7 +498,10 @@ Cura.ExpandableComponent
         Rectangle
         {
             id: feedrateGradient
-            visible: viewSettings.show_feedrate_gradient || viewSettings.show_line_width_gradient
+            visible: (
+              viewSettings.show_feedrate_gradient ||
+              viewSettings.show_line_width_gradient
+            )
             anchors.left: parent.left
             anchors.right: parent.right
             height: Math.round(UM.Theme.getSize("layerview_row").height * 1.5)
@@ -526,7 +553,9 @@ Cura.ExpandableComponent
         Rectangle
         {
             id: thicknessGradient
-            visible: viewSettings.show_thickness_gradient
+            visible: (
+              viewSettings.show_thickness_gradient
+            )
             anchors.left: parent.left
             anchors.right: parent.right
             height: Math.round(UM.Theme.getSize("layerview_row").height * 1.5)
@@ -578,6 +607,85 @@ Cura.ExpandableComponent
                 }
             }
         }
+
+        // Gradient colors for flow (similar to jet colormap)
+        Rectangle
+        {
+            id: jetGradient
+            visible: (
+              viewSettings.show_flow_rate_gradient
+            )
+            anchors.left: parent.left
+            anchors.right: parent.right
+            height: Math.round(UM.Theme.getSize("layerview_row").height * 1.5)
+            border.width: UM.Theme.getSize("default_lining").width
+            border.color: UM.Theme.getColor("lining")
+
+            LinearGradient
+            {
+                anchors
+                {
+                    left: parent.left
+                    leftMargin: UM.Theme.getSize("default_lining").width
+                    right: parent.right
+                    rightMargin: UM.Theme.getSize("default_lining").width
+                    top: parent.top
+                    topMargin: UM.Theme.getSize("default_lining").width
+                    bottom: parent.bottom
+                    bottomMargin: UM.Theme.getSize("default_lining").width
+                }
+                start: Qt.point(0, 0)
+                end: Qt.point(parent.width, 0)
+                gradient: Gradient
+                {
+                    GradientStop
+                    {
+                        position: 0.0
+                        color: Qt.rgba(0, 0, 0.5, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.125
+                        color: Qt.rgba(0, 0.0, 1.0, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.25
+                        color: Qt.rgba(0, 0.5, 1.0, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.375
+                        color: Qt.rgba(0.0, 1.0, 1.0, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.5
+                        color: Qt.rgba(0.5, 1.0, 0.5, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.625
+                        color: Qt.rgba(1.0, 1.0, 0.0, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.75
+                        color: Qt.rgba(1.0, 0.5, 0, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 0.875
+                        color: Qt.rgba(1.0, 0.0, 0, 1)
+                    }
+                    GradientStop
+                    {
+                        position: 1.0
+                        color: Qt.rgba(0.5, 0, 0, 1)
+                    }
+                }
+            }
+        }
     }
 
     FontMetrics

plugins/SimulationView/SimulationViewProxy.py

@@ -126,6 +126,14 @@ class SimulationViewProxy(QObject):
     def minLineWidth(self):
         return self._simulation_view.getMinLineWidth()
 
+    @pyqtProperty(float, notify=colorSchemeLimitsChanged)
+    def maxFlowRate(self):
+        return self._simulation_view.getMaxFlowRate()
+
+    @pyqtProperty(float, notify=colorSchemeLimitsChanged)
+    def minFlowRate(self):
+        return self._simulation_view.getMinFlowRate()
+
     # Opacity 0..1
     @pyqtSlot(int, float)
     def setExtruderOpacity(self, extruder_nr, opacity):

plugins/SimulationView/layers3d.shader

@@ -12,6 +12,8 @@ vertex41core =
     uniform lowp float u_min_thickness;
     uniform lowp float u_max_line_width;
     uniform lowp float u_min_line_width;
+    uniform lowp float u_max_flow_rate;
+    uniform lowp float u_min_flow_rate;
     uniform lowp int u_layer_view_type;
     uniform lowp mat4 u_extruder_opacity;  // currently only for max 16 extruders, others always visible
 
@@ -105,6 +107,30 @@ vertex41core =
         return vec4(red, green, blue, 1.0);
     }
 
+    float clamp(float v)
+    {
+        float t = v < 0 ? 0 : v;
+        return t > 1.0 ? 1.0 : t;
+    }
+
+    // Inspired by https://stackoverflow.com/a/46628410
+    vec4 flowRateGradientColor(float abs_value, float min_value, float max_value)
+    {
+        float t;
+        if(abs(min_value - max_value) < 0.0001)
+        {
+          t = 0;
+        }
+        else
+        {
+          t = 2.0 * ((abs_value - min_value) / (max_value - min_value)) - 1;
+        }
+        float red = clamp(1.5 - abs(2.0 * t - 1.0));
+        float green = clamp(1.5 - abs(2.0 * t));
+        float blue = clamp(1.5 - abs(2.0 * t + 1.0));
+        return vec4(red, green, blue, 1.0);
+    }
+
     void main()
     {
         vec4 v1_vertex = a_vertex;
@@ -130,6 +156,10 @@ vertex41core =
             case 4:  // "Line width"
                 v_color = lineWidthGradientColor(a_line_dim.x, u_min_line_width, u_max_line_width);
                 break;
+            case 5:  // "Flow"
+                float flow_rate =  a_line_dim.x * a_line_dim.y * a_feedrate;
+                v_color = flowRateGradientColor(flow_rate, u_min_flow_rate, u_max_flow_rate);
+                break;
         }
 
         v_vertex = world_space_vert.xyz;
@@ -318,7 +348,6 @@ geometry41core =
             EndPrimitive();
         }
 
-
         if ((u_show_starts == 1) && (v_prev_line_type[0] != 1) && (v_line_type[0] == 1)) {
             float w = size_x;
             float h = size_y;
@@ -337,7 +366,7 @@ geometry41core =
             myEmitVertex(v_vertex[0] + vec3(-w, -h, -w), u_starts_color, normalize(vec3(-1.0, -1.0, -1.0)), viewProjectionMatrix * (gl_in[0].gl_Position + vec4(-w, -h, -w, 0.0))); // Back-bottom-right
             myEmitVertex(v_vertex[0] + vec3( w,  h, -w), u_starts_color, normalize(vec3( 1.0,  1.0, -1.0)), viewProjectionMatrix * (gl_in[0].gl_Position + vec4( w,  h, -w, 0.0))); // Back-top-left
             myEmitVertex(v_vertex[0] + vec3(-w,  h, -w), u_starts_color, normalize(vec3(-1.0,  1.0, -1.0)), viewProjectionMatrix * (gl_in[0].gl_Position + vec4(-w,  h, -w, 0.0))); // Back-top-right
-            
+
             EndPrimitive();
         }
     }

plugins/SimulationView/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides the Simulation view.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/SimulationView/resources/Pause.svg

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M8,21H6V3h2V21z M18,3h-2v18h2V3z" />
-<path style="fill:#000E1A;" d="M8,21H6V3h2V21z M18,3h-2v18h2V3z"/>
 </svg>

plugins/SimulationView/resources/Play.svg

@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M5,20V4c0-0.8,0.9-1.3,1.5-0.9l13,8c0.6,0.4,0.6,1.3,0,1.7l-13,8C5.9,21.3,5,20.8,5,20z M7,5.8v12.4
-<path style="fill:#231F20;" d="M5,20V4c0-0.8,0.9-1.3,1.5-0.9l13,8c0.6,0.4,0.6,1.3,0,1.7l-13,8C5.9,21.3,5,20.8,5,20z M7,5.8v12.4
 	L17.1,12L7,5.8z"/>
 </svg>

plugins/SliceInfoPlugin/SliceInfo.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Ultimaker B.V.
+# Copyright (c) 2021 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import json
@@ -87,8 +87,12 @@ class SliceInfo(QObject, Extension):
                 return None
             file_path = os.path.join(plugin_path, "example_data.html")
             if file_path:
-                with open(file_path, "r", encoding = "utf-8") as f:
+                try:
-                    self._example_data_content = f.read()
+                    with open(file_path, "r", encoding = "utf-8") as f:
+                        self._example_data_content = f.read()
+                except EnvironmentError as e:
+                    Logger.error(f"Unable to read example slice info data to show to the user: {e}")
+                    self._example_data_content = "<i>" + catalog.i18nc("@text", "Unable to read example data file.") + "</i>"
         return self._example_data_content
 
     @pyqtSlot(bool)
@@ -229,6 +233,11 @@ class SliceInfo(QObject, Extension):
 
                     model["model_settings"] = model_settings
 
+                    if node.source_mime_type is None:
+                        model["mime_type"] = ""
+                    else:
+                        model["mime_type"] = node.source_mime_type.name
+
                     data["models"].append(model)
 
             print_times = print_information.printTimes()

plugins/SliceInfoPlugin/example_data.html

@@ -54,6 +54,7 @@
                 <li><b>Bounding Box:</b> [minimum x, y, z; maximum x, y, z]</li>
                 <li><b>Is Helper Mesh:</b> no</li>
                 <li><b>Helper Mesh Type:</b> support mesh</li>
+                <li><b>File type:</b> STL</li>
             </ul>
         </li>
     </ul>

plugins/SliceInfoPlugin/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Submits anonymous slice info. Can be disabled through preferences.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/SolidView/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides a normal solid mesh view.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/SupportEraser/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Creates an eraser mesh to block the printing of support in certain places",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/Toolbox/plugin.json

@@ -2,6 +2,6 @@
     "name": "Toolbox",
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
-    "api": "7.5.0",
+    "api": 7,
     "description": "Find, manage and install new Cura packages."
 }

plugins/Toolbox/resources/images/Shop.svg

@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M19,3H5C3.3,3,2,4.3,2,6v3c0,1.5,0.8,2.7,2,3.4V22h16v-9.6c1.2-0.7,2-2,2-3.4V6C22,4.3,20.7,3,19,3z
-<path style="fill:#000E1A;" d="M19,3H5C3.3,3,2,4.3,2,6v3c0,1.5,0.8,2.7,2,3.4V22h16v-9.6c1.2-0.7,2-2,2-3.4V6C22,4.3,20.7,3,19,3z
+	M10,5h4v4c0,1.1-0.9,2-2,2s-2-0.9-2-2V5z M4,9V5h4v4c0,1.1-0.9,2-2,2S4,10.1,4,9z M18,20h-4v-5h-4v5H6v-7c1.2,0,2.3-0.5,3-1.4
-	 M10,5h4v4c0,1.1-0.9,2-2,2s-2-0.9-2-2V5z M4,9V5h4v4c0,1.1-0.9,2-2,2S4,10.1,4,9z M18,20h-4v-5h-4v5H6v-7c1.2,0,2.3-0.5,3-1.4
+	c0.7,0.8,1.8,1.4,3,1.4s2.3-0.5,3-1.4c0.7,0.8,1.8,1.4,3,1.4V20z M20,9c0,1.1-0.9,2-2,2s-2-0.9-2-2V5h4V9z" />
-	c0.7,0.8,1.8,1.4,3,1.4s2.3-0.5,3-1.4c0.7,0.8,1.8,1.4,3,1.4V20z M20,9c0,1.1-0.9,2-2,2s-2-0.9-2-2V5h4V9z"/>
 </svg>

plugins/Toolbox/resources/qml/components/ToolboxDownloadsShowcaseTile.qml

@@ -4,7 +4,7 @@
 import QtQuick 2.10
 import QtQuick.Controls 1.4
 import QtQuick.Controls.Styles 1.4
-import QtGraphicalEffects 1.0
+
 import UM 1.1 as UM
 
 Rectangle

plugins/TrimeshReader/plugin.json

@@ -3,5 +3,5 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.0",
     "description": "Provides support for reading model files.",
-    "api": "7.5.0"
+    "api": 7
 }

plugins/UFPReader/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.0",
     "description": "Provides support for reading Ultimaker Format Packages.",
-    "supported_sdk_versions": ["7.5.0"],
+    "supported_sdk_versions": ["7.6.0"],
     "i18n-catalog": "cura"
 }

plugins/UFPWriter/UFPWriter.py

@@ -5,6 +5,7 @@ from typing import cast, List, Dict
 
 from Charon.VirtualFile import VirtualFile  # To open UFP files.
 from Charon.OpenMode import OpenMode  # To indicate that we want to write to UFP files.
+from Charon.filetypes.OpenPackagingConvention import OPCError
 from io import StringIO  # For converting g-code to bytes.
 
 from PyQt5.QtCore import QBuffer
@@ -47,35 +48,53 @@ class UFPWriter(MeshWriter):
         archive = VirtualFile()
         archive.openStream(stream, "application/x-ufp", OpenMode.WriteOnly)
 
-        self._writeObjectList(archive)
+        try:
+            self._writeObjectList(archive)
 
-        # Store the g-code from the scene.
+            # Store the g-code from the scene.
-        archive.addContentType(extension = "gcode", mime_type = "text/x-gcode")
+            archive.addContentType(extension = "gcode", mime_type = "text/x-gcode")
+        except EnvironmentError as e:
+            error_msg = catalog.i18nc("@info:error", "Can't write to UFP file:") + " " + str(e)
+            self.setInformation(error_msg)
+            Logger.error(error_msg)
+            return False
         gcode_textio = StringIO()  # We have to convert the g-code into bytes.
         gcode_writer = cast(MeshWriter, PluginRegistry.getInstance().getPluginObject("GCodeWriter"))
         success = gcode_writer.write(gcode_textio, None)
         if not success:  # Writing the g-code failed. Then I can also not write the gzipped g-code.
             self.setInformation(gcode_writer.getInformation())
             return False
-        gcode = archive.getStream("/3D/model.gcode")
+        try:
-        gcode.write(gcode_textio.getvalue().encode("UTF-8"))
+            gcode = archive.getStream("/3D/model.gcode")
-        archive.addRelation(virtual_path = "/3D/model.gcode", relation_type = "http://schemas.ultimaker.org/package/2018/relationships/gcode")
+            gcode.write(gcode_textio.getvalue().encode("UTF-8"))
+            archive.addRelation(virtual_path = "/3D/model.gcode", relation_type = "http://schemas.ultimaker.org/package/2018/relationships/gcode")
+        except EnvironmentError as e:
+            error_msg = catalog.i18nc("@info:error", "Can't write to UFP file:") + " " + str(e)
+            self.setInformation(error_msg)
+            Logger.error(error_msg)
+            return False
 
         # Attempt to store the thumbnail, if any:
         backend = CuraApplication.getInstance().getBackend()
         snapshot = None if getattr(backend, "getLatestSnapshot", None) is None else backend.getLatestSnapshot()
         if snapshot:
-            archive.addContentType(extension = "png", mime_type = "image/png")
+            try:
-            thumbnail = archive.getStream("/Metadata/thumbnail.png")
+                archive.addContentType(extension = "png", mime_type = "image/png")
+                thumbnail = archive.getStream("/Metadata/thumbnail.png")
 
-            thumbnail_buffer = QBuffer()
+                thumbnail_buffer = QBuffer()
-            thumbnail_buffer.open(QBuffer.ReadWrite)
+                thumbnail_buffer.open(QBuffer.ReadWrite)
-            snapshot.save(thumbnail_buffer, "PNG")
+                snapshot.save(thumbnail_buffer, "PNG")
 
-            thumbnail.write(thumbnail_buffer.data())
+                thumbnail.write(thumbnail_buffer.data())
-            archive.addRelation(virtual_path = "/Metadata/thumbnail.png",
+                archive.addRelation(virtual_path = "/Metadata/thumbnail.png",
-                                relation_type = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail",
+                                    relation_type = "http://schemas.openxmlformats.org/package/2006/relationships/metadata/thumbnail",
-                                origin = "/3D/model.gcode")
+                                    origin = "/3D/model.gcode")
+            except EnvironmentError as e:
+                error_msg = catalog.i18nc("@info:error", "Can't write to UFP file:") + " " + str(e)
+                self.setInformation(error_msg)
+                Logger.error(error_msg)
+                return False
         else:
             Logger.log("w", "Thumbnail not created, cannot save it")
 
@@ -90,7 +109,7 @@ class UFPWriter(MeshWriter):
 
         try:
             archive.addContentType(extension = material_extension, mime_type = material_mime_type)
-        except:
+        except OPCError:
             Logger.log("w", "The material extension: %s was already added", material_extension)
 
         added_materials = []
@@ -120,17 +139,23 @@ class UFPWriter(MeshWriter):
                 Logger.log("e", "Unable serialize material container with root id: %s", material_root_id)
                 return False
 
-            material_file = archive.getStream(material_file_name)
+            try:
-            material_file.write(serialized_material.encode("UTF-8"))
+                material_file = archive.getStream(material_file_name)
-            archive.addRelation(virtual_path = material_file_name,
+                material_file.write(serialized_material.encode("UTF-8"))
-                                relation_type = "http://schemas.ultimaker.org/package/2018/relationships/material",
+                archive.addRelation(virtual_path = material_file_name,
-                                origin = "/3D/model.gcode")
+                                    relation_type = "http://schemas.ultimaker.org/package/2018/relationships/material",
+                                    origin = "/3D/model.gcode")
+            except EnvironmentError as e:
+                error_msg = catalog.i18nc("@info:error", "Can't write to UFP file:") + " " + str(e)
+                self.setInformation(error_msg)
+                Logger.error(error_msg)
+                return False
 
             added_materials.append(material_file_name)
 
         try:
             archive.close()
-        except OSError as e:
+        except EnvironmentError as e:
             error_msg = catalog.i18nc("@info:error", "Can't write to UFP file:") + " " + str(e)
             self.setInformation(error_msg)
             Logger.error(error_msg)

plugins/UFPWriter/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides support for writing Ultimaker Format Packages.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/UM3NetworkPrinting/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "description": "Manages network connections to Ultimaker networked printers.",
     "version": "2.0.0",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/UM3NetworkPrinting/resources/qml/MonitorStage.qml

@@ -6,7 +6,6 @@ import QtQuick.Controls 1.4
 import QtQuick.Controls.Styles 1.4
 import UM 1.3 as UM
 import Cura 1.0 as Cura
-import QtGraphicalEffects 1.0
 
 // This is the root component for the monitor stage.
 Component

plugins/UM3NetworkPrinting/resources/svg/Camera.svg

@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M22,6.4l-4,2V8c0-1.7-1.3-3-3-3H5C3.3,5,2,6.3,2,8v8c0,1.7,1.3,3,3,3h10c1.7,0,3-1.3,3-3v-0.4l4,2
-<path style="fill:#000E1A;" d="M22,6.4l-4,2V8c0-1.7-1.3-3-3-3H5C3.3,5,2,6.3,2,8v8c0,1.7,1.3,3,3,3h10c1.7,0,3-1.3,3-3v-0.4l4,2
+	V6.4z M16,17H4V7h12V17z M20,14.4l-2-1c0-0.9,0-1.8,0-2.8l2-1V14.4z" />
-	V6.4z M16,17H4V7h12V17z M20,14.4l-2-1c0-0.9,0-1.8,0-2.8l2-1V14.4z"/>
 </svg>

plugins/UM3NetworkPrinting/resources/svg/CancelCircle.svg

@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M12,2C6.5,2,2,6.5,2,12s4.5,10,10,10s10-4.5,10-10S17.5,2,12,2z M12,20c-4.4,0-8-3.6-8-8s3.6-8,8-8
-<path style="fill:#000E1A;" d="M12,2C6.5,2,2,6.5,2,12s4.5,10,10,10s10-4.5,10-10S17.5,2,12,2z M12,20c-4.4,0-8-3.6-8-8s3.6-8,8-8
 	s8,3.6,8,8S16.4,20,12,20z M16.7,8.7L13.4,12l3.3,3.3l-1.4,1.4L12,13.4l-3.3,3.3l-1.4-1.4l3.3-3.3L7.3,8.7l1.4-1.4l3.3,3.3l3.3-3.3
-	L16.7,8.7z"/>
+	L16.7,8.7z" />
 </svg>

plugins/UM3NetworkPrinting/resources/svg/Check.svg

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<polygon points="9.1,19.4 1.9,12.2 3.3,10.8 9.1,16.6 19.4,6.3 20.8,7.7" />
-<polygon style="fill:#000E1A;" points="9.1,19.4 1.9,12.2 3.3,10.8 9.1,16.6 19.4,6.3 20.8,7.7 "/>
 </svg>

plugins/UM3NetworkPrinting/resources/svg/CheckCircle.svg

@@ -1,9 +1,6 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M12,2C6.5,2,2,6.5,2,12c0,5.5,4.5,10,10,10s10-4.5,10-10C22,6.5,17.5,2,12,2z M12,20
-<g>
+	c-4.4,0-8-3.6-8-8c0-4.4,3.6-8,8-8s8,3.6,8,8C20,16.4,16.4,20,12,20z" />
-	<path style="fill:#000E1A;" d="M12,2C6.5,2,2,6.5,2,12c0,5.5,4.5,10,10,10s10-4.5,10-10C22,6.5,17.5,2,12,2z M12,20
+<polygon points="16.3,8.3 11,13.6 7.7,10.3 6.3,11.7 11,16.4 17.7,9.7" />
-		c-4.4,0-8-3.6-8-8c0-4.4,3.6-8,8-8s8,3.6,8,8C20,16.4,16.4,20,12,20z"/>
-	<polygon style="fill:#000E1A;" points="16.3,8.3 11,13.6 7.7,10.3 6.3,11.7 11,16.4 17.7,9.7 	"/>
-</g>
 </svg>

plugins/UM3NetworkPrinting/resources/svg/PauseCircle.svg

@@ -1,10 +1,7 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M12,2C6.5,2,2,6.5,2,12c0,5.5,4.5,10,10,10s10-4.5,10-10C22,6.5,17.5,2,12,2z M12,20
-<g>
+	c-4.4,0-8-3.6-8-8c0-4.4,3.6-8,8-8s8,3.6,8,8C20,16.4,16.4,20,12,20z" />
-	<path style="fill:#000E1A;" d="M12,2C6.5,2,2,6.5,2,12c0,5.5,4.5,10,10,10s10-4.5,10-10C22,6.5,17.5,2,12,2z M12,20
+<rect x="13" y="8" width="2" height="8"/>
-		c-4.4,0-8-3.6-8-8c0-4.4,3.6-8,8-8s8,3.6,8,8C20,16.4,16.4,20,12,20z"/>
+<rect x="9" y="8" width="2" height="8"/>
-	<rect x="13" y="8" style="fill:#000E1A;" width="2" height="8"/>
-	<rect x="9" y="8" style="fill:#000E1A;" width="2" height="8"/>
-</g>
 </svg>

plugins/UM3NetworkPrinting/resources/svg/Prohibition.svg

@@ -1,7 +1,6 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M12,2C6.5,2,2,6.5,2,12s4.5,10,10,10s10-4.5,10-10S17.5,2,12,2z M4,12c0-1.8,0.6-3.5,1.7-4.9
-<path style="fill:#000E1A;" d="M12,2C6.5,2,2,6.5,2,12s4.5,10,10,10s10-4.5,10-10S17.5,2,12,2z M4,12c0-1.8,0.6-3.5,1.7-4.9
 	l11.2,11.2C15.5,19.4,13.8,20,12,20C7.6,20,4,16.4,4,12z M18.3,16.9L7.1,5.7C8.5,4.6,10.2,4,12,4c4.4,0,8,3.6,8,8
-	C20,13.8,19.4,15.5,18.3,16.9z"/>
+	C20,13.8,19.4,15.5,18.3,16.9z" />
 </svg>

plugins/UM3NetworkPrinting/resources/svg/Warning.svg

@@ -1,6 +1,5 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+<path d="M22,18L13.7,3.1c-0.4-0.6-1-1-1.7-1s-1.4,0.4-1.7,1L2,18c-0.3,0.6-0.3,1.4,0,2c0.4,0.6,1,1,1.7,1
-<path style="fill:#000E1A;" d="M22,18L13.7,3.1c-0.4-0.6-1-1-1.7-1s-1.4,0.4-1.7,1L2,18c-0.3,0.6-0.3,1.4,0,2c0.4,0.6,1,1,1.7,1
+	h16.6c0.7,0,1.4-0.4,1.7-1C22.4,19.4,22.4,18.7,22,18z M3.7,19L12,4.1L20.3,19H3.7z M11,8h2v6h-2V8z M13,18h-2v-2h2V18z" />
-	h16.6c0.7,0,1.4-0.4,1.7-1C22.4,19.4,22.4,18.7,22,18z M3.7,19L12,4.1L20.3,19H3.7z M11,8h2v6h-2V8z M13,18h-2v-2h2V18z"/>
 </svg>

plugins/UM3NetworkPrinting/resources/svg/icons/Buildplate.svg

@@ -1,7 +1,5 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 25.2.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<path d="M18,21H6c-1.7,0-3-1.3-3-3V6c0-1.7,1.3-3,3-3h12c1.7,0,3,1.3,3,3v12C21,19.7,19.7,21,18,21z M5,19h14
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
+	V5H5V19z M14.7,7.7l-1.4-1.4l-7,7l1.4,1.4L14.7,7.7z M9.7,7.7L8.3,6.3l-2,2l1.4,1.4L9.7,7.7z" />
-<path style="fill:#000E1A;" d="M18,21H6c-1.7,0-3-1.3-3-3V6c0-1.7,1.3-3,3-3h12c1.7,0,3,1.3,3,3v12C21,19.7,19.7,21,18,21z M5,19h14
-	V5H5V19z M14.7,7.7l-1.4-1.4l-7,7l1.4,1.4L14.7,7.7z M9.7,7.7L8.3,6.3l-2,2l1.4,1.4L9.7,7.7z"/>
 </svg>

plugins/UM3NetworkPrinting/resources/svg/icons/CameraPhoto.svg

@@ -1,8 +1,6 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 25.2.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-<svg version="1.1" id="Artwork" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<path d="M19,6h-1.6l-2-2H8.6l-2,2H5C3.3,6,2,7.3,2,9v8c0,1.7,1.3,3,3,3h14c1.7,0,3-1.3,3-3V9
-	 viewBox="0 0 24 24" style="enable-background:new 0 0 24 24;" xml:space="preserve">
-<path style="fill:#000E1A;" d="M19,6h-1.6l-2-2H8.6l-2,2H5C3.3,6,2,7.3,2,9v8c0,1.7,1.3,3,3,3h14c1.7,0,3-1.3,3-3V9
 	C22,7.3,20.7,6,19,6z M20,18H4V8h3.4l2-2h5.2l2,2H20V18z M12,8c-2.2,0-4,1.8-4,4s1.8,4,4,4s4-1.8,4-4S14.2,8,12,8z M12,14
-	c-1.1,0-2-0.9-2-2s0.9-2,2-2s2,0.9,2,2S13.1,14,12,14z"/>
+	c-1.1,0-2-0.9-2-2s0.9-2,2-2s2,0.9,2,2S13.1,14,12,14z" />
 </svg>

plugins/UM3NetworkPrinting/resources/svg/icons/Extruder.svg

@@ -1,15 +1,5 @@
-<?xml version="1.0" encoding="iso-8859-1"?>
+<?xml version="1.0" encoding="utf-8"?>
-<!-- Generator: Adobe Illustrator 24.3.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 30 30">
-<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+<path d="M15,3C8.37,3,3,8.37,3,15v11h2v-4.36C7.15,24.87,10.83,27,15,27c6.63,0,12-5.37,12-12S21.63,3,15,3z M15,25
-	 viewBox="0 0 30 30" style="enable-background:new 0 0 30 30;" xml:space="preserve">
+	C9.49,25,5,20.51,5,15S9.49,5,15,5s10,4.49,10,10S20.51,25,15,25z"/>
-<g id="Layer_1">
-	<g>
-		<g>
-			<path d="M15,3C8.37,3,3,8.37,3,15v11h2v-4.36C7.15,24.87,10.83,27,15,27c6.63,0,12-5.37,12-12S21.63,3,15,3z M15,25
-				C9.49,25,5,20.51,5,15S9.49,5,15,5s10,4.49,10,10S20.51,25,15,25z"/>
-		</g>
-	</g>
-</g>
-<g id="Comments">
-</g>
 </svg>

plugins/UM3NetworkPrinting/src/Cloud/CloudOutputDeviceManager.py

@@ -399,7 +399,7 @@ class CloudOutputDeviceManager:
         output_device_manager = CuraApplication.getInstance().getOutputDeviceManager()
         stored_cluster_id = active_machine.getMetaDataEntry(self.META_CLUSTER_ID)
         local_network_key = active_machine.getMetaDataEntry(self.META_NETWORK_KEY)
-        for device in self._remote_clusters.values():
+        for device in list(self._remote_clusters.values()):  # Make a copy of the remote devices list, to prevent modifying the list while iterating, if a device gets added asynchronously.
             if device.key == stored_cluster_id:
                 # Connect to it if the stored ID matches.
                 self._connectToOutputDevice(device, active_machine)

plugins/UM3NetworkPrinting/src/Network/SendMaterialJob.py

@@ -7,26 +7,34 @@ from PyQt5.QtNetwork import QNetworkReply, QNetworkRequest
 from UM.Job import Job
 from UM.Logger import Logger
 from cura.CuraApplication import CuraApplication
+from cura.Utils.Threading import call_on_qt_thread
 
 from ..Models.Http.ClusterMaterial import ClusterMaterial
 from ..Models.LocalMaterial import LocalMaterial
 from ..Messages.MaterialSyncMessage import MaterialSyncMessage
 
+import time
+import threading
+
 if TYPE_CHECKING:
     from .LocalClusterOutputDevice import LocalClusterOutputDevice
 
 
 class SendMaterialJob(Job):
+
     """Asynchronous job to send material profiles to the printer.
 
     This way it won't freeze up the interface while sending those materials.
     """
-
-
     def __init__(self, device: "LocalClusterOutputDevice") -> None:
         super().__init__()
         self.device = device  # type: LocalClusterOutputDevice
 
+        self._send_material_thread = threading.Thread(target = self._sendMissingMaterials)
+        self._send_material_thread.setDaemon(True)
+
+        self._remote_materials = {}  # type: Dict[str, ClusterMaterial]
+
     def run(self) -> None:
         """Send the request to the printer and register a callback"""
 
@@ -36,9 +44,15 @@ class SendMaterialJob(Job):
         """Callback for when the remote materials were returned."""
 
         remote_materials_by_guid = {material.guid: material for material in materials}
-        self._sendMissingMaterials(remote_materials_by_guid)
+        self._remote_materials = remote_materials_by_guid
+        # It's not the nicest way to do it, but if we don't handle this in a thread
+        # we are blocking the main interface (even though the original call was done in a job)
+        # This should really be refactored so that calculating the list of materials that need to be sent
+        # to the printer is done outside of the job (and running the job actually sends the materials)
+        # TODO: Fix this hack that was introduced for 4.9.1
+        self._send_material_thread.start()
 
-    def _sendMissingMaterials(self, remote_materials_by_guid: Dict[str, ClusterMaterial]) -> None:
+    def _sendMissingMaterials(self) -> None:
         """Determine which materials should be updated and send them to the printer.
 
         :param remote_materials_by_guid: The remote materials by GUID.
@@ -47,7 +61,7 @@ class SendMaterialJob(Job):
         if len(local_materials_by_guid) == 0:
             Logger.log("d", "There are no local materials to synchronize with the printer.")
             return
-        material_ids_to_send = self._determineMaterialsToSend(local_materials_by_guid, remote_materials_by_guid)
+        material_ids_to_send = self._determineMaterialsToSend(local_materials_by_guid, self._remote_materials)
         if len(material_ids_to_send) == 0:
             Logger.log("d", "There are no remote materials to update.")
             return
@@ -96,7 +110,11 @@ class SendMaterialJob(Job):
 
             file_name = os.path.basename(file_path)
             self._sendMaterialFile(file_path, file_name, root_material_id)
+            time.sleep(1)  # Throttle the sending a bit.
 
+    # This needs to be called on the QT thread since the onFinished needs to happen
+    # in the same thread as where the network manager is located (aka; main thread)
+    @call_on_qt_thread
     def _sendMaterialFile(self, file_path: str, file_name: str, material_id: str) -> None:
         """Send a single material file to the printer.
 

plugins/UM3NetworkPrinting/src/__init__.py

@@ -1,9 +1,2 @@
 # Copyright (c) 2019 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
-
-# Workaround for a race condition on certain systems where there
-# is a race condition between Arcus and PyQt. Importing Arcus
-# first seems to prevent Sip from going into a state where it
-# tries to create PyQt objects on a non-main thread.
-import Arcus #@UnusedImport
-import Savitar #@UnusedImport

plugins/USBPrinting/AutoDetectBaudJob.py

@@ -70,7 +70,10 @@ class AutoDetectBaudJob(Job):
                 timeout_time = time() + wait_response_timeout
 
                 while timeout_time > time():
-                    line = serial.readline()
+                    # If baudrate is wrong, then readline() might never
+                    # return, even with timeouts set. Using read_until
+                    # with size limit seems to fix this.
+                    line = serial.read_until(size = 100)
                     if b"ok" in line and b"T:" in line:
                         self.setResult(baud_rate)
                         Logger.log("d", "Detected baud rate {baud_rate} on serial {serial} on retry {retry} with after {time_elapsed:0.2f} seconds.".format(

plugins/USBPrinting/plugin.json

@@ -2,7 +2,7 @@
     "name": "USB printing",
     "author": "Ultimaker B.V.",
     "version": "1.0.2",
-    "api": "7.5.0",
+    "api": 7,
     "description": "Accepts G-Code and sends them to a printer. Plugin can also update firmware.",
     "i18n-catalog": "cura"
 }

plugins/UltimakerMachineActions/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Provides machine actions for Ultimaker machines (such as bed leveling wizard, selecting upgrades, etc.).",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/VersionUpgrade/VersionUpgrade21to22/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Upgrades configurations from Cura 2.1 to Cura 2.2.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }

plugins/VersionUpgrade/VersionUpgrade22to24/plugin.json

@@ -3,6 +3,6 @@
     "author": "Ultimaker B.V.",
     "version": "1.0.1",
     "description": "Upgrades configurations from Cura 2.2 to Cura 2.4.",
-    "api": "7.5.0",
+    "api": 7,
     "i18n-catalog": "cura"
 }