Merge branch 'master' of https://github.com/Ultimaker/Cura.git into master-CURA-1923

cura/ConvexHullDecorator.py

@@ -30,9 +30,10 @@ class ConvexHullDecorator(SceneNodeDecorator):
 
     def setNode(self, node):
         previous_node = self._node
+        # Disconnect from previous node signals
         if previous_node is not None and node is not previous_node:
-            previous_node.transformationChanged.connect(self._onChanged)
-            previous_node.parentChanged.connect(self._onChanged)
+            previous_node.transformationChanged.disconnect(self._onChanged)
+            previous_node.parentChanged.disconnect(self._onChanged)
 
         super().setNode(node)
 
@@ -286,5 +287,5 @@ class ConvexHullDecorator(SceneNodeDecorator):
 
     _affected_settings = [
         "adhesion_type", "raft_base_thickness", "raft_interface_thickness", "raft_surface_layers",
-        "raft_surface_thickness", "raft_airgap", "print_sequence",
+        "raft_surface_thickness", "raft_airgap", "raft_margin", "print_sequence",
         "skirt_gap", "skirt_line_count", "skirt_brim_line_width", "skirt_distance"]

cura/ConvexHullNode.py

@@ -23,7 +23,7 @@ class ConvexHullNode(SceneNode):
         self._original_parent = parent
 
         # Color of the drawn convex hull
-        self._color = Color(35, 35, 35, 192)
+        self._color = Color(0.4, 0.4, 0.4, 1.0)
 
         # The y-coordinate of the convex hull mesh. Must not be 0, to prevent z-fighting.
         self._mesh_height = 0.1
@@ -77,7 +77,7 @@ class ConvexHullNode(SceneNode):
         convex_hull_head = self._node.callDecoration("getConvexHullHead")
         if convex_hull_head:
             convex_hull_head_builder = MeshBuilder()
-            convex_hull_head_builder.addConvexPolygon(convex_hull_head.getPoints(), self._mesh_height-self._thickness)
+            convex_hull_head_builder.addConvexPolygon(convex_hull_head.getPoints(), self._mesh_height - self._thickness)
             self._convex_hull_head_mesh = convex_hull_head_builder.build()
 
         if not node:

cura/CuraApplication.py

@@ -98,7 +98,7 @@ class CuraApplication(QtApplication):
         SettingDefinition.addSupportedProperty("settable_per_meshgroup", DefinitionPropertyType.Any, default = True)
         SettingDefinition.addSupportedProperty("settable_globally", DefinitionPropertyType.Any, default = True)
         SettingDefinition.addSupportedProperty("global_inherits_stack", DefinitionPropertyType.Function, default = "-1")
-        SettingDefinition.addSettingType("extruder", int, str, Validator)
+        SettingDefinition.addSettingType("extruder", None, str, Validator)
 
         ## Add the 4 types of profiles to storage.
         Resources.addStorageType(self.ResourceTypes.QualityInstanceContainer, "quality")
@@ -128,6 +128,8 @@ class CuraApplication(QtApplication):
         self._machine_action_manager = MachineActionManager.MachineActionManager()
         self._machine_manager = None    # This is initialized on demand.
 
+        self._additional_components = {} # Components to add to certain areas in the interface
+
         super().__init__(name = "cura", version = CuraVersion, buildtype = CuraBuildType)
 
         self.setWindowIcon(QIcon(Resources.getPath(Resources.Images, "cura-icon.png")))
@@ -201,7 +203,7 @@ class CuraApplication(QtApplication):
             "dialog_profile_path",
             "dialog_material_path"]:
 
-            Preferences.getInstance().addPreference("local_file/%s" % key, "~/")
+            Preferences.getInstance().addPreference("local_file/%s" % key, os.path.expanduser("~/"))
 
         Preferences.getInstance().setDefault("local_file/last_used_type", "text/x-gcode")
 
@@ -553,12 +555,18 @@ class CuraApplication(QtApplication):
     def deleteSelection(self):
         if not self.getController().getToolsEnabled():
             return
-
+        removed_group_nodes = []
         op = GroupedOperation()
         nodes = Selection.getAllSelectedObjects()
         for node in nodes:
             op.addOperation(RemoveSceneNodeOperation(node))
-
+            group_node = node.getParent()
+            if group_node and group_node.callDecoration("isGroup") and group_node not in removed_group_nodes:
+                remaining_nodes_in_group = list(set(group_node.getChildren()) - set(nodes))
+                if len(remaining_nodes_in_group) == 1:
+                    removed_group_nodes.append(group_node)
+                    op.addOperation(SetParentOperation(remaining_nodes_in_group[0], group_node.getParent()))
+                    op.addOperation(RemoveSceneNodeOperation(group_node))
         op.push()
 
         pass
@@ -584,8 +592,7 @@ class CuraApplication(QtApplication):
             op.push()
             if group_node:
                 if len(group_node.getChildren()) == 1 and group_node.callDecoration("isGroup"):
-                    group_node.getChildren()[0].translate(group_node.getPosition())
-                    group_node.getChildren()[0].setParent(group_node.getParent())
+                    op.addOperation(SetParentOperation(group_node.getChildren()[0], group_node.getParent()))
                     op = RemoveSceneNodeOperation(group_node)
                     op.push()
 
@@ -627,6 +634,22 @@ class CuraApplication(QtApplication):
             op = SetTransformOperation(node, Vector())
             op.push()
 
+    ##  Select all nodes containing mesh data in the scene.
+    @pyqtSlot()
+    def selectAll(self):
+        if not self.getController().getToolsEnabled():
+            return
+
+        Selection.clear()
+        for node in DepthFirstIterator(self.getController().getScene().getRoot()):
+            if type(node) is not SceneNode:
+                continue
+            if not node.getMeshData() and not node.callDecoration("isGroup"):
+                continue  # Node that doesnt have a mesh and is not a group.
+            if node.getParent() and node.getParent().callDecoration("isGroup"):
+                continue  # Grouped nodes don't need resetting as their parent (the group) is resetted)
+            Selection.add(node)
+
     ##  Delete all nodes containing mesh data in the scene.
     @pyqtSlot()
     def deleteAll(self):
@@ -650,6 +673,7 @@ class CuraApplication(QtApplication):
                 op.addOperation(RemoveSceneNodeOperation(node))
 
             op.push()
+            Selection.clear()
 
     ## Reset all translation on nodes with mesh data. 
     @pyqtSlot()
@@ -877,3 +901,21 @@ class CuraApplication(QtApplication):
 
     def getBuildVolume(self):
         return self._volume
+
+    additionalComponentsChanged = pyqtSignal(str, arguments = ["areaId"])
+
+    @pyqtProperty("QVariantMap", notify = additionalComponentsChanged)
+    def additionalComponents(self):
+        return self._additional_components
+
+    ##  Add a component to a list of components to be reparented to another area in the GUI.
+    #   The actual reparenting is done by the area itself.
+    #   \param area_id \type{str} Identifying name of the area to which the component should be reparented
+    #   \param component \type{QQuickComponent} The component that should be reparented
+    @pyqtSlot(str, "QVariant")
+    def addAdditionalComponent(self, area_id, component):
+        if area_id not in self._additional_components:
+            self._additional_components[area_id] = []
+        self._additional_components[area_id].append(component)
+
+        self.additionalComponentsChanged.emit(area_id)

cura/MachineActionManager.py

@@ -57,9 +57,10 @@ class MachineActionManager(QObject):
     def addRequiredAction(self, definition_id, action_key):
         if action_key in self._machine_actions:
             if definition_id in self._required_actions:
-                self._required_actions[definition_id] |= {self._machine_actions[action_key]}
+                if self._machine_actions[action_key] not in self._required_actions[definition_id]:
+                    self._required_actions[definition_id].append(self._machine_actions[action_key])
             else:
-                self._required_actions[definition_id] = {self._machine_actions[action_key]}
+                self._required_actions[definition_id] = [self._machine_actions[action_key]]
         else:
             raise UnknownMachineActionError("Action %s, which is required for %s is not known." % (action_key, definition_id))
 
@@ -67,9 +68,10 @@ class MachineActionManager(QObject):
     def addSupportedAction(self, definition_id, action_key):
         if action_key in self._machine_actions:
             if definition_id in self._supported_actions:
-                self._supported_actions[definition_id] |= {self._machine_actions[action_key]}
+                if self._machine_actions[action_key] not in self._supported_actions[definition_id]:
+                    self._supported_actions[definition_id].append(self._machine_actions[action_key])
             else:
-                self._supported_actions[definition_id] = {self._machine_actions[action_key]}
+                self._supported_actions[definition_id] = [self._machine_actions[action_key]]
         else:
             Logger.log("w", "Unable to add %s to %s, as the action is not recognised", action_key, definition_id)
 

cura/PlatformPhysics.py

@@ -71,7 +71,6 @@ class PlatformPhysics:
             # If there is no convex hull for the node, start calculating it and continue.
             if not node.getDecorator(ConvexHullDecorator):
                 node.addDecorator(ConvexHullDecorator())
-            node.callDecoration("recomputeConvexHull")
 
             if Preferences.getInstance().getValue("physics/automatic_push_free"):
                 # Check for collisions between convex hulls
@@ -95,11 +94,11 @@ class PlatformPhysics:
                     # Get the overlap distance for both convex hulls. If this returns None, there is no intersection.
                     head_hull = node.callDecoration("getConvexHullHead")
                     if head_hull:
-                        overlap = head_hull.intersectsPolygon(other_node.callDecoration("getConvexHull"))
+                        overlap = head_hull.intersectsPolygon(other_node.callDecoration("getConvexHullHead"))
                         if not overlap:
                             other_head_hull = other_node.callDecoration("getConvexHullHead")
                             if other_head_hull:
-                                overlap = node.callDecoration("getConvexHull").intersectsPolygon(other_head_hull)
+                                overlap = node.callDecoration("getConvexHullHead").intersectsPolygon(other_head_hull)
                     else:
                         own_convex_hull = node.callDecoration("getConvexHull")
                         other_convex_hull = other_node.callDecoration("getConvexHull")

cura/Settings/ContainerManager.py

@@ -244,6 +244,7 @@ class ContainerManager(QObject):
             if not type_name or entry["type"] == type_name:
                 filters.append(filter_string)
 
+        filters.append("All Files (*)")
         return filters
 
     ##  Export a container to a file
@@ -280,6 +281,9 @@ class ContainerManager(QObject):
             return { "status": "error", "message": "Container not found"}
         container = containers[0]
 
+        if UM.Platform.isOSX() and "." in file_url:
+            file_url = file_url[:file_url.rfind(".")]
+
         for suffix in mime_type.suffixes:
             if file_url.endswith(suffix):
                 break
@@ -301,7 +305,7 @@ class ContainerManager(QObject):
         with UM.SaveFile(file_url, "w") as f:
             f.write(contents)
 
-        return { "status": "success", "message": "Succesfully exported container"}
+        return { "status": "success", "message": "Succesfully exported container", "path": file_url}
 
     ##  Imports a profile from a file
     #
@@ -371,11 +375,20 @@ class ContainerManager(QObject):
                 "container": container_type
             }
 
-            suffix_list = "*." + mime_type.preferredSuffix
+            suffix = mime_type.preferredSuffix
+            if UM.Platform.isOSX() and "." in suffix:
+                # OSX's File dialog is stupid and does not allow selecting files with a . in its name
+                suffix = suffix[suffix.index(".") + 1:]
+
+            suffix_list = "*." + suffix
             for suffix in mime_type.suffixes:
                 if suffix == mime_type.preferredSuffix:
                     continue
 
+                if UM.Platform.isOSX() and "." in suffix:
+                    # OSX's File dialog is stupid and does not allow selecting files with a . in its name
+                    suffix = suffix[suffix.index("."):]
+
                 suffix_list += ", *." + suffix
 
             name_filter = "{0} ({1})".format(mime_type.comment, suffix_list)

cura/Settings/MachineManager.py

@@ -26,7 +26,7 @@ class MachineManager(QObject):
         self._global_container_stack = None
 
         Application.getInstance().globalContainerStackChanged.connect(self._onGlobalContainerChanged)
-        self._global_stack_valid = None
+        self._active_stack_valid = None
         self._onGlobalContainerChanged()
 
         ExtruderManager.getInstance().activeExtruderChanged.connect(self._onActiveExtruderStackChanged)
@@ -74,7 +74,7 @@ class MachineManager(QObject):
     activeStackChanged = pyqtSignal()
 
     globalValueChanged = pyqtSignal()  # Emitted whenever a value inside global container is changed.
-    globalValidationChanged = pyqtSignal()  # Emitted whenever a validation inside global container is changed
+    activeValidationChanged = pyqtSignal()  # Emitted whenever a validation inside active container is changed
 
     blurSettings = pyqtSignal() # Emitted to force fields in the advanced sidebar to un-focus, so they update properly
 
@@ -269,25 +269,29 @@ class MachineManager(QObject):
         if property_name == "global_inherits_stack":
             if self._active_container_stack and self._active_container_stack != self._global_container_stack:
                 # Update the global user value when the "global_inherits_stack" function points to a different stack
-                stack_index = int(self._active_container_stack.getProperty(key, property_name))
-                extruder_stacks = [stack for stack in ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId())]
+                extruder_stacks = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
+                target_stack_position = int(self._active_container_stack.getProperty(key, "global_inherits_stack"))
+                if target_stack_position == -1:  # Prevent -1 from selecting wrong stack.
+                    target_stack = self._active_container_stack
+                else:
+                    target_stack = extruder_stacks[target_stack_position]
 
-                if len(extruder_stacks) > stack_index:
-                    new_value = extruder_stacks[stack_index].getProperty(key, "value")
+                new_value = target_stack.getProperty(key, "value")
                 if self._global_container_stack.getProperty(key, "value") != new_value:
                     self._global_container_stack.getTop().setProperty(key, "value", new_value)
 
         if property_name == "validationState":
-            if self._global_stack_valid:
+            if self._active_stack_valid:
                 changed_validation_state = self._active_container_stack.getProperty(key, property_name)
                 if changed_validation_state in (UM.Settings.ValidatorState.Exception, UM.Settings.ValidatorState.MaximumError, UM.Settings.ValidatorState.MinimumError):
-                    self._global_stack_valid = False
-                    self.globalValidationChanged.emit()
+                    self._active_stack_valid = False
+                    self.activeValidationChanged.emit()
             else:
                 has_errors = self._checkStackForErrors(self._active_container_stack)
                 if not has_errors:
-                    self._global_stack_valid = True
-                    self.globalValidationChanged.emit()
+                    self._active_stack_valid = True
+                    self.activeValidationChanged.emit()
+
     def _onGlobalContainerChanged(self):
         if self._global_container_stack:
             self._global_container_stack.nameChanged.disconnect(self._onMachineNameChanged)
@@ -310,8 +314,6 @@ class MachineManager(QObject):
             self._global_container_stack.nameChanged.connect(self._onMachineNameChanged)
             self._global_container_stack.containersChanged.connect(self._onInstanceContainersChanged)
             self._global_container_stack.propertyChanged.connect(self._onGlobalPropertyChanged)
-            self._global_stack_valid = not self._checkStackForErrors(self._global_container_stack)
-            self.globalValidationChanged.emit()
             material = self._global_container_stack.findContainer({"type": "material"})
             material.nameChanged.connect(self._onMaterialNameChanged)
 
@@ -329,6 +331,8 @@ class MachineManager(QObject):
             self._active_container_stack.propertyChanged.connect(self._onGlobalPropertyChanged)
         else:
             self._active_container_stack = self._global_container_stack
+        self._active_stack_valid = not self._checkStackForErrors(self._active_container_stack)
+        self.activeValidationChanged.emit()
 
     def _onInstanceContainersChanged(self, container):
         container_type = container.getMetaDataEntry("type")
@@ -433,11 +437,11 @@ class MachineManager(QObject):
         return len(user_settings) != 0
 
     ##  Check if the global profile does not contain error states
-    #   Note that the _global_stack_valid is cached due to performance issues
+    #   Note that the _active_stack_valid is cached due to performance issues
     #   Calling _checkStackForErrors on every change is simply too expensive
-    @pyqtProperty(bool, notify = globalValidationChanged)
-    def isGlobalStackValid(self):
-        return bool(self._global_stack_valid)
+    @pyqtProperty(bool, notify = activeValidationChanged)
+    def isActiveStackValid(self):
+        return bool(self._active_stack_valid)
 
     @pyqtProperty(str, notify = activeStackChanged)
     def activeUserProfileId(self):
@@ -549,7 +553,7 @@ class MachineManager(QObject):
         return ""
 
     @pyqtSlot(str, str)
-    def renameQualityContainer(self, container_id, new_name):
+    def renameQualityContainer(self, container_id, nbalew_name):
         containers = UM.Settings.ContainerRegistry.getInstance().findInstanceContainers(id = container_id, type = "quality")
         if containers:
             new_name = self._createUniqueName("quality", containers[0].getName(), new_name,

cura/Settings/SettingOverrideDecorator.py

@@ -75,6 +75,7 @@ class SettingOverrideDecorator(SceneNodeDecorator):
     #   \param extruder_stack_id The new extruder stack to print with.
     def setActiveExtruder(self, extruder_stack_id):
         self._extruder_stack = extruder_stack_id
+        self._updateNextStack()
         self.activeExtruderChanged.emit()
 
     def getStack(self):

plugins/3MFReader/ThreeMFReader.py

@@ -9,18 +9,20 @@ from UM.Math.Vector import Vector
 from UM.Scene.SceneNode import SceneNode
 from UM.Scene.GroupDecorator import GroupDecorator
 from UM.Math.Quaternion import Quaternion
-
 from UM.Job import Job
 
 import math
 import zipfile
 
-import xml.etree.ElementTree as ET
+try:
+    import xml.etree.cElementTree as ET
+except ImportError:
+    import xml.etree.ElementTree as ET
 
 ##    Base implementation for reading 3MF files. Has no support for textures. Only loads meshes!
 class ThreeMFReader(MeshReader):
     def __init__(self):
-        super(ThreeMFReader, self).__init__()
+        super().__init__()
         self._supported_extensions = [".3mf"]
 
         self._namespaces = {
@@ -116,4 +118,10 @@ class ThreeMFReader(MeshReader):
         except Exception as e:
             Logger.log("e", "exception occured in 3mf reader: %s", e)
 
+        try: # Selftest - There might be more functions that should fail
+            boundingBox = result.getBoundingBox()
+            boundingBox.isValid()
+        except:
+            return None
+
         return result

plugins/CuraEngineBackend/Cura.proto

@@ -13,6 +13,7 @@ message Slice
     repeated ObjectList object_lists = 1; // The meshgroups to be printed one after another
     SettingList global_settings = 2; // The global settings used for the whole print job
     repeated Extruder extruders = 3; // The settings sent to each extruder object
+    repeated SettingExtruder global_inherits_stack = 4; //From which stack the setting would inherit if not defined in a stack.
 }
 
 message Extruder
@@ -108,8 +109,14 @@ message Setting {
     bytes value = 2; // The value of the setting
 }
 
+message SettingExtruder {
+    string name = 1; //The setting key.
+
+    int32 extruder = 2; //From which extruder stack the setting should inherit.
+}
+
 message GCodePrefix {
-    bytes data = 2; // Header string to be prenpended before the rest of the gcode sent from the engine
+    bytes data = 2; //Header string to be prepended before the rest of the g-code sent from the engine.
 }
 
 message SlicingFinished {

plugins/CuraEngineBackend/CuraEngineBackend.py

@@ -13,9 +13,11 @@ from UM.Resources import Resources
 from UM.Settings.Validator import ValidatorState #To find if a setting is in an error state. We can't slice then.
 from UM.Platform import Platform
 
+
 import cura.Settings
 
 from cura.OneAtATimeIterator import OneAtATimeIterator
+from cura.Settings.ExtruderManager import ExtruderManager
 from . import ProcessSlicedLayersJob
 from . import ProcessGCodeJob
 from . import StartSliceJob
@@ -40,7 +42,8 @@ class CuraEngineBackend(Backend):
     def __init__(self):
         super().__init__()
 
-        # Find out where the engine is located, and how it is called. This depends on how Cura is packaged and which OS we are running on.
+        # Find out where the engine is located, and how it is called.
+        # This depends on how Cura is packaged and which OS we are running on.
         default_engine_location = os.path.join(Application.getInstallPrefix(), "bin", "CuraEngine")
         if hasattr(sys, "frozen"):
             default_engine_location = os.path.join(os.path.dirname(os.path.abspath(sys.executable)), "CuraEngine")
@@ -59,7 +62,7 @@ class CuraEngineBackend(Backend):
         self._stored_layer_data = []
         self._stored_optimized_layer_data = []
 
-        #Triggers for when to (re)start slicing:
+        # Triggers for when to (re)start slicing:
         self._global_container_stack = None
         Application.getInstance().globalContainerStackChanged.connect(self._onGlobalStackChanged)
         self._onGlobalStackChanged()
@@ -68,15 +71,15 @@ class CuraEngineBackend(Backend):
         cura.Settings.ExtruderManager.getInstance().activeExtruderChanged.connect(self._onActiveExtruderChanged)
         self._onActiveExtruderChanged()
 
-        #When you update a setting and other settings get changed through inheritance, many propertyChanged signals are fired.
-        #This timer will group them up, and only slice for the last setting changed signal.
-        #TODO: Properly group propertyChanged signals by whether they are triggered by the same user interaction.
+        # When you update a setting and other settings get changed through inheritance, many propertyChanged signals are fired.
+        # This timer will group them up, and only slice for the last setting changed signal.
+        # TODO: Properly group propertyChanged signals by whether they are triggered by the same user interaction.
         self._change_timer = QTimer()
         self._change_timer.setInterval(500)
         self._change_timer.setSingleShot(True)
         self._change_timer.timeout.connect(self.slice)
 
-        #Listeners for receiving messages from the back-end.
+        # Listeners for receiving messages from the back-end.
         self._message_handlers["cura.proto.Layer"] = self._onLayerMessage
         self._message_handlers["cura.proto.LayerOptimized"] = self._onOptimizedLayerMessage
         self._message_handlers["cura.proto.Progress"] = self._onProgressMessage
@@ -86,19 +89,19 @@ class CuraEngineBackend(Backend):
         self._message_handlers["cura.proto.SlicingFinished"] = self._onSlicingFinishedMessage
 
         self._start_slice_job = None
-        self._slicing = False #Are we currently slicing?
-        self._restart = False #Back-end is currently restarting?
-        self._enabled = True #Should we be slicing? Slicing might be paused when, for instance, the user is dragging the mesh around.
-        self._always_restart = True #Always restart the engine when starting a new slice. Don't keep the process running. TODO: Fix engine statelessness.
-        self._process_layers_job = None #The currently active job to process layers, or None if it is not processing layers.
+        self._slicing = False  # Are we currently slicing?
+        self._restart = False  # Back-end is currently restarting?
+        self._enabled = True  # Should we be slicing? Slicing might be paused when, for instance, the user is dragging the mesh around.
+        self._always_restart = True  # Always restart the engine when starting a new slice. Don't keep the process running. TODO: Fix engine statelessness.
+        self._process_layers_job = None  # The currently active job to process layers, or None if it is not processing layers.
 
-        self._backend_log_max_lines = 200 # Maximal count of lines to buffer
-        self._error_message = None #Pop-up message that shows errors.
+        self._backend_log_max_lines = 20000  # Maximum number of lines to buffer
+        self._error_message = None  # Pop-up message that shows errors.
 
         self.backendQuit.connect(self._onBackendQuit)
         self.backendConnected.connect(self._onBackendConnected)
 
-        #When a tool operation is in progress, don't slice. So we need to listen for tool operations.
+        # When a tool operation is in progress, don't slice. So we need to listen for tool operations.
         Application.getInstance().getController().toolOperationStarted.connect(self._onToolOperationStarted)
         Application.getInstance().getController().toolOperationStopped.connect(self._onToolOperationStopped)
 
@@ -117,9 +120,10 @@ class CuraEngineBackend(Backend):
     #   \return list of commands and args / parameters.
     def getEngineCommand(self):
         json_path = Resources.getPath(Resources.DefinitionContainers, "fdmprinter.def.json")
-        return [Preferences.getInstance().getValue("backend/location"), "connect", "127.0.0.1:{0}".format(self._port), "-j", json_path, "-vv"]
+        return [Preferences.getInstance().getValue("backend/location"), "connect", "127.0.0.1:{0}".format(self._port), "-j", json_path, ""]
 
-    ##  Emitted when we get a message containing print duration and material amount. This also implies the slicing has finished.
+    ##  Emitted when we get a message containing print duration and material amount.
+    #   This also implies the slicing has finished.
     #   \param time The amount of time the print will take.
     #   \param material_amount The amount of material the print will use.
     printDurationMessage = Signal()
@@ -133,7 +137,7 @@ class CuraEngineBackend(Backend):
     ##  Perform a slice of the scene.
     def slice(self):
         self._slice_start_time = time()
-        if not self._enabled or not self._global_container_stack: #We shouldn't be slicing.
+        if not self._enabled or not self._global_container_stack:  # We shouldn't be slicing.
             # try again in a short time
             self._change_timer.start()
             return
@@ -143,10 +147,10 @@ class CuraEngineBackend(Backend):
         self._stored_layer_data = []
         self._stored_optimized_layer_data = []
 
-        if self._slicing: #We were already slicing. Stop the old job.
+        if self._slicing:  # We were already slicing. Stop the old job.
             self._terminate()
 
-        if self._process_layers_job: #We were processing layers. Stop that, the layers are going to change soon.
+        if self._process_layers_job:  # We were processing layers. Stop that, the layers are going to change soon.
             self._process_layers_job.abort()
             self._process_layers_job = None
 
@@ -204,7 +208,7 @@ class CuraEngineBackend(Backend):
 
         if job.getResult() == StartSliceJob.StartJobResult.SettingError:
             if Application.getInstance().getPlatformActivity:
-                self._error_message = Message(catalog.i18nc("@info:status", "Unable to slice. Please check your setting values for errors."), lifetime = 10)
+                self._error_message = Message(catalog.i18nc("@info:status", "Unable to slice. Please check your setting values for errors."))
                 self._error_message.show()
                 self.backendStateChange.emit(BackendState.Error)
             else:
@@ -213,7 +217,7 @@ class CuraEngineBackend(Backend):
 
         if job.getResult() == StartSliceJob.StartJobResult.NothingToSlice:
             if Application.getInstance().getPlatformActivity:
-                self._error_message = Message(catalog.i18nc("@info:status", "Unable to slice. No suitable objects found."), lifetime = 10)
+                self._error_message = Message(catalog.i18nc("@info:status", "Unable to slice. No suitable objects found."))
                 self._error_message.show()
                 self.backendStateChange.emit(BackendState.Error)
             else:
@@ -252,6 +256,9 @@ class CuraEngineBackend(Backend):
             return
 
         super()._onSocketError(error)
+        if error.getErrorCode() == Arcus.ErrorCode.Debug:
+            return
+
         self._terminate()
 
         if error.getErrorCode() not in [Arcus.ErrorCode.BindFailedError, Arcus.ErrorCode.ConnectionResetError, Arcus.ErrorCode.Debug]:
@@ -262,7 +269,7 @@ class CuraEngineBackend(Backend):
     #   \param instance The setting instance that has changed.
     #   \param property The property of the setting instance that has changed.
     def _onSettingChanged(self, instance, property):
-        if property == "value": #Only reslice if the value has changed.
+        if property == "value": # Only reslice if the value has changed.
             self._onChanged()
 
     ##  Called when a sliced layer data message is received from the engine.
@@ -313,7 +320,7 @@ class CuraEngineBackend(Backend):
 
     ##  Called when a print time message is received from the engine.
     #
-    #   \param message The protobuf message containing the print time and
+    #   \param message The protobuff message containing the print time and
     #   material amount per extruder
     def _onPrintTimeMaterialEstimates(self, message):
         material_amounts = []
@@ -363,7 +370,7 @@ class CuraEngineBackend(Backend):
     def _onActiveViewChanged(self):
         if Application.getInstance().getController().getActiveView():
             view = Application.getInstance().getController().getActiveView()
-            if view.getPluginId() == "LayerView": #If switching to layer view, we should process the layers if that hasn't been done yet.
+            if view.getPluginId() == "LayerView":  # If switching to layer view, we should process the layers if that hasn't been done yet.
                 self._layer_view_active = True
                 # There is data and we're not slicing at the moment
                 # if we are slicing, there is no need to re-calculate the data as it will be invalid in a moment.
@@ -388,22 +395,35 @@ class CuraEngineBackend(Backend):
         if self._global_container_stack:
             self._global_container_stack.propertyChanged.disconnect(self._onSettingChanged)
             self._global_container_stack.containersChanged.disconnect(self._onChanged)
+            extruders = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
+            if extruders:
+                for extruder in extruders:
+                    extruder.propertyChanged.disconnect(self._onSettingChanged)
 
         self._global_container_stack = Application.getInstance().getGlobalContainerStack()
 
         if self._global_container_stack:
-            self._global_container_stack.propertyChanged.connect(self._onSettingChanged) #Note: Only starts slicing when the value changed.
+            self._global_container_stack.propertyChanged.connect(self._onSettingChanged)  # Note: Only starts slicing when the value changed.
             self._global_container_stack.containersChanged.connect(self._onChanged)
+            extruders = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
+            if extruders:
+                for extruder in extruders:
+                    extruder.propertyChanged.connect(self._onSettingChanged)
             self._onActiveExtruderChanged()
             self._onChanged()
 
     def _onActiveExtruderChanged(self):
+        if self._global_container_stack:
+            # Connect all extruders of the active machine. This might cause a few connects that have already happend,
+            # but that shouldn't cause issues as only new / unique connections are added.
+            extruders = list(ExtruderManager.getInstance().getMachineExtruders(self._global_container_stack.getId()))
+            if extruders:
+                for extruder in extruders:
+                    extruder.propertyChanged.connect(self._onSettingChanged)
         if self._active_extruder_stack:
-            self._active_extruder_stack.propertyChanged.disconnect(self._onSettingChanged)
             self._active_extruder_stack.containersChanged.disconnect(self._onChanged)
 
         self._active_extruder_stack = cura.Settings.ExtruderManager.getInstance().getActiveExtruderStack()
         if self._active_extruder_stack:
-            self._active_extruder_stack.propertyChanged.connect(self._onSettingChanged)  # Note: Only starts slicing when the value changed.
             self._active_extruder_stack.containersChanged.connect(self._onChanged)
 

plugins/CuraEngineBackend/ProcessSlicedLayersJob.py

@@ -56,10 +56,9 @@ class ProcessSlicedLayersJob(Job):
 
         ## Remove old layer data (if any)
         for node in DepthFirstIterator(self._scene.getRoot()):
-            if type(node) is SceneNode and node.getMeshData():
             if node.callDecoration("getLayerData"):
-                    self._scene.getRoot().removeChild(node)
-            Job.yieldThread()
+                node.getParent().removeChild(node)
+                break
             if self._abort_requested:
                 if self._progress:
                     self._progress.hide()
@@ -74,7 +73,7 @@ class ProcessSlicedLayersJob(Job):
         # instead simply offset all other layers so the lowest layer is always 0.
         min_layer_number = 0
         for layer in self._layers:
-            if(layer.id < min_layer_number):
+            if layer.id < min_layer_number:
                 min_layer_number = layer.id
 
         current_layer = 0
@@ -109,14 +108,13 @@ class ProcessSlicedLayersJob(Job):
                 # faster.
                 new_points = numpy.empty((len(points), 3), numpy.float32)
                 if polygon.point_type == 0:  # Point2D
-                    new_points[:,0] = points[:,0]
-                    new_points[:,1] = layer.height/1000 # layer height value is in backend representation
-                    new_points[:,2] = -points[:,1]
+                    new_points[:, 0] = points[:, 0]
+                    new_points[:, 1] = layer.height / 1000 # layer height value is in backend representation
+                    new_points[:, 2] = -points[:, 1]
                 else: # Point3D
-                    new_points[:,0] = points[:,0]
-                    new_points[:,1] = points[:,2]
-                    new_points[:,2] = -points[:,1]
-                    
+                    new_points[:, 0] = points[:, 0]
+                    new_points[:, 1] = points[:, 2]
+                    new_points[:, 2] = -points[:, 1]
 
                 this_poly = LayerPolygon.LayerPolygon(layer_data, extruder, line_types, new_points, line_widths)
                 this_poly.buildCache()
@@ -185,4 +183,3 @@ class ProcessSlicedLayersJob(Job):
             else:
                 if self._progress:
                     self._progress.hide()
-

plugins/CuraEngineBackend/StartSliceJob.py

@@ -13,6 +13,7 @@ from UM.Scene.SceneNode import SceneNode
 from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
 
 from UM.Settings.Validator import ValidatorState
+from UM.Settings.SettingRelation import RelationType
 
 from cura.OneAtATimeIterator import OneAtATimeIterator
 
@@ -24,6 +25,7 @@ class StartJobResult(IntEnum):
     SettingError = 3
     NothingToSlice = 4
 
+
 ##  Formatter class that handles token expansion in start/end gcod
 class GcodeStartEndFormatter(Formatter):
     def get_value(self, key, args, kwargs):  # [CodeStyle: get_value is an overridden function from the Formatter class]
@@ -37,6 +39,7 @@ class GcodeStartEndFormatter(Formatter):
             Logger.log("w", "Incorrectly formatted placeholder '%s' in start/end gcode", key)
             return "{" + str(key) + "}"
 
+
 ##  Job class that builds up the message of scene data to send to CuraEngine.
 class StartSliceJob(Job):
     def __init__(self, slice_message):
@@ -71,7 +74,7 @@ class StartSliceJob(Job):
             return
 
         # Don't slice if there is a setting with an error value.
-        if self._checkStackForErrors(stack):
+        if not Application.getInstance().getMachineManager().isActiveStackValid:
             self.setResult(StartJobResult.SettingError)
             return
 
@@ -123,11 +126,15 @@ class StartSliceJob(Job):
                 if temp_list:
                     object_groups.append(temp_list)
 
+            # There are cases when there is nothing to slice. This can happen due to one at a time slicing not being
+            # able to find a possible sequence or because there are no objects on the build plate (or they are outside
+            # the build volume)
             if not object_groups:
                 self.setResult(StartJobResult.NothingToSlice)
                 return
 
             self._buildGlobalSettingsMessage(stack)
+            self._buildGlobalInheritsStackMessage(stack)
 
             for extruder_stack in cura.Settings.ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
                 self._buildExtruderMessage(extruder_stack)
@@ -171,6 +178,7 @@ class StartSliceJob(Job):
             Logger.logException("w", "Unable to do token replacement on start/end gcode")
             return str(value).encode("utf-8")
 
+    ##  Create extruder message from stack
     def _buildExtruderMessage(self, stack):
         message = self._slice_message.addRepeatedMessage("extruders")
         message.id = int(stack.getMetaDataEntry("position"))
@@ -209,11 +217,54 @@ class StartSliceJob(Job):
             else:
                 setting_message.value = str(value).encode("utf-8")
 
+    ##  Sends for some settings which extruder they should fallback to if not
+    #   set.
+    #
+    #   This is only set for settings that have the global_inherits_stack
+    #   property.
+    #
+    #   \param stack The global stack with all settings, from which to read the
+    #   global_inherits_stack property.
+    def _buildGlobalInheritsStackMessage(self, stack):
+        for key in stack.getAllKeys():
+            extruder = int(stack.getProperty(key, "global_inherits_stack"))
+            if extruder >= 0: #Set to a specific extruder.
+                setting_extruder = self._slice_message.addRepeatedMessage("global_inherits_stack")
+                setting_extruder.name = key
+                setting_extruder.extruder = extruder
+
+    ##  Check if a node has per object settings and ensure that they are set correctly in the message
+    #   \param node \type{SceneNode} Node to check.
+    #   \param message object_lists message to put the per object settings in
     def _handlePerObjectSettings(self, node, message):
         stack = node.callDecoration("getStack")
+        # Check if the node has a stack attached to it and the stack has any settings in the top container.
         if stack:
-            for key in stack.getAllKeys():
+            # Check all settings for relations, so we can also calculate the correct values for dependant settings.
+            changed_setting_keys = set(stack.getTop().getAllKeys())
+            for key in stack.getTop().getAllKeys():
+                instance = stack.getTop().getInstance(key)
+                self._addRelations(changed_setting_keys, instance.definition.relations)
+                Job.yieldThread()
+
+            # Ensure that the engine is aware what the build extruder is
+            if stack.getProperty("machine_extruder_count", "value") > 1:
+                changed_setting_keys.add("extruder_nr")
+
+            # Get values for all changed settings
+            for key in changed_setting_keys:
                 setting = message.addRepeatedMessage("settings")
                 setting.name = key
                 setting.value = str(stack.getProperty(key, "value")).encode("utf-8")
                 Job.yieldThread()
+
+    ##  Recursive function to put all settings that require eachother for value changes in a list
+    #   \param relations_set \type{set} Set of keys (strings) of settings that are influenced
+    #   \param relations list of relation objects that need to be checked.
+    def _addRelations(self, relations_set, relations):
+        for relation in filter(lambda r: r.role == "value", relations):
+            if relation.type == RelationType.RequiresTarget:
+                continue
+
+            relations_set.add(relation.target.key)
+            self._addRelations(relations_set, relation.target.relations)

plugins/GCodeWriter/GCodeWriter.py

@@ -9,6 +9,8 @@ import UM.Settings.ContainerRegistry
 from cura.CuraApplication import CuraApplication
 from cura.Settings.ExtruderManager import ExtruderManager
 
+from UM.Settings.InstanceContainer import InstanceContainer
+
 import re #For escaping characters in the settings.
 import json
 
@@ -61,6 +63,20 @@ class GCodeWriter(MeshWriter):
 
         return False
 
+    ##  Create a new container with container 2 as base and container 1 written over it.
+    def _createFlattenedContainerInstance(self, instance_container1, instance_container2):
+        flat_container = InstanceContainer(instance_container2.getName())
+        flat_container.setDefinition(instance_container2.getDefinition())
+        flat_container.setMetaData(instance_container2.getMetaData())
+
+        for key in instance_container2.getAllKeys():
+            flat_container.setProperty(key, "value", instance_container2.getProperty(key, "value"))
+
+        for key in instance_container1.getAllKeys():
+            flat_container.setProperty(key, "value", instance_container1.getProperty(key, "value"))
+        return flat_container
+
+
     ##  Serialises a container stack to prepare it for writing at the end of the
     #   g-code.
     #
@@ -74,38 +90,13 @@ class GCodeWriter(MeshWriter):
         prefix_length = len(prefix)
 
         container_with_profile = stack.findContainer({"type": "quality"})
-        machine_manager = CuraApplication.getInstance().getMachineManager()
-
-        # Duplicate the current quality profile and update it with any user settings.
-        flat_quality_id = machine_manager.duplicateContainer(container_with_profile.getId())
-
-        flat_quality = UM.Settings.ContainerRegistry.getInstance().findInstanceContainers(id = flat_quality_id)[0]
-        flat_quality._dirty = False
-        user_settings = stack.getTop()
-
-        # We don't want to send out any signals, so disconnect them.
-        flat_quality.propertyChanged.disconnectAll()
-
-        for key in user_settings.getAllKeys():
-            flat_quality.setProperty(key, "value", user_settings.getProperty(key, "value"))
-
-        serialized = flat_quality.serialize()
-
+        flat_global_container = self._createFlattenedContainerInstance(stack.getTop(),container_with_profile)
+        serialized = flat_global_container.serialize()
         data = {"global_quality": serialized}
-        manager = ExtruderManager.getInstance()
-        for extruder in manager.getMachineExtruders(stack.getId()):
+
+        for extruder in ExtruderManager.getInstance().getMachineExtruders(stack.getId()):
             extruder_quality = extruder.findContainer({"type": "quality"})
-
-            flat_extruder_quality_id = machine_manager.duplicateContainer(extruder_quality.getId())
-            flat_extruder_quality = UM.Settings.ContainerRegistry.getInstance().findInstanceContainers(id=flat_extruder_quality_id)[0]
-            flat_extruder_quality._dirty = False
-            extruder_user_settings = extruder.getTop()
-
-            # We don't want to send out any signals, so disconnect them.
-            flat_extruder_quality.propertyChanged.disconnectAll()
-
-            for key in extruder_user_settings.getAllKeys():
-                flat_extruder_quality.setProperty(key, "value", extruder_user_settings.getProperty(key, "value"))
+            flat_extruder_quality = self._createFlattenedContainerInstance(extruder.getTop(), extruder_quality)
 
             extruder_serialized = flat_extruder_quality.serialize()
             data.setdefault("extruder_quality", []).append(extruder_serialized)

plugins/LayerView/LayerView.py

@@ -11,6 +11,7 @@ from UM.Math.Color import Color
 from UM.Mesh.MeshBuilder import MeshBuilder
 from UM.Job import Job
 from UM.Preferences import Preferences
+from UM.Logger import Logger
 
 from UM.View.RenderBatch import RenderBatch
 from UM.View.GL.OpenGL import OpenGL
@@ -34,7 +35,7 @@ class LayerView(View):
         self._shader = None
         self._selection_shader = None
         self._num_layers = 0
-        self._layer_percentage = 0 # what percentage of layers need to be shown (SLider gives value between 0 - 100)
+        self._layer_percentage = 0  # what percentage of layers need to be shown (Slider gives value between 0 - 100)
         self._proxy = LayerViewProxy.LayerViewProxy()
         self._controller.getScene().getRoot().childrenChanged.connect(self._onSceneChanged)
         self._max_layers = 0
@@ -43,12 +44,14 @@ class LayerView(View):
         self._current_layer_jumps = None
         self._top_layers_job = None
         self._activity = False
+        self._old_max_layers = 0
 
         Preferences.getInstance().addPreference("view/top_layer_count", 5)
+        Preferences.getInstance().addPreference("view/only_show_top_layers", False)
         Preferences.getInstance().preferenceChanged.connect(self._onPreferencesChanged)
 
         self._solid_layers = int(Preferences.getInstance().getValue("view/top_layer_count"))
-
+        self._only_show_top_layers = bool(Preferences.getInstance().getValue("view/only_show_top_layers"))
         self._busy = False
 
     def getActivity(self):
@@ -100,7 +103,7 @@ class LayerView(View):
                         continue
 
                     # Render all layers below a certain number as line mesh instead of vertices.
-                    if self._current_layer_num - self._solid_layers > -1:
+                    if self._current_layer_num - self._solid_layers > -1 and not self._only_show_top_layers:
                         start = 0
                         end = 0
                         element_counts = layer_data.getElementCounts()
@@ -126,14 +129,12 @@ class LayerView(View):
             if self._current_layer_num > self._max_layers:
                 self._current_layer_num = self._max_layers
 
-            self.resetLayerData()
             self._startUpdateTopLayers()
 
             self.currentLayerNumChanged.emit()
 
     def calculateMaxLayers(self):
         scene = self.getController().getScene()
-        renderer = self.getRenderer() # TODO: @UnusedVariable
         self._activity = True
 
         self._old_max_layers = self._max_layers
@@ -199,7 +200,7 @@ class LayerView(View):
 
         if not job.getResult():
             return
-
+        self.resetLayerData()  # Reset the layer data only when job is done. Doing it now prevents "blinking" data.
         self._current_layer_mesh = job.getResult().get("layers")
         self._current_layer_jumps = job.getResult().get("jumps")
         self._controller.getScene().sceneChanged.emit(self._controller.getScene().getRoot())
@@ -207,14 +208,15 @@ class LayerView(View):
         self._top_layers_job = None
 
     def _onPreferencesChanged(self, preference):
-        if preference != "view/top_layer_count":
+        if preference != "view/top_layer_count" and preference != "view/only_show_top_layers":
             return
 
         self._solid_layers = int(Preferences.getInstance().getValue("view/top_layer_count"))
+        self._only_show_top_layers = bool(Preferences.getInstance().getValue("view/only_show_top_layers"))
 
-        self.resetLayerData()
         self._startUpdateTopLayers()
 
+
 class _CreateTopLayersJob(Job):
     def __init__(self, scene, layer_number, solid_layers):
         super().__init__()
@@ -242,20 +244,20 @@ class _CreateTopLayersJob(Job):
 
             try:
                 layer = layer_data.getLayer(layer_number).createMesh()
-            except Exception as e:
-                print(e)
+            except Exception:
+                Logger.logException("w", "An exception occurred while creating layer mesh.")
                 return
 
             if not layer or layer.getVertices() is None:
                 continue
 
-            layer_mesh.addIndices(layer_mesh._vertex_count+layer.getIndices())
+            layer_mesh.addIndices(layer_mesh.getVertexCount() + layer.getIndices())
             layer_mesh.addVertices(layer.getVertices())
 
             # Scale layer color by a brightness factor based on the current layer number
             # This will result in a range of 0.5 - 1.0 to multiply colors by.
-            brightness = numpy.ones((1,4), dtype=numpy.float32) * (2.0 - (i / self._solid_layers)) / 2.0
-            brightness[0, 3] = 1.0;
+            brightness = numpy.ones((1, 4), dtype=numpy.float32) * (2.0 - (i / self._solid_layers)) / 2.0
+            brightness[0, 3] = 1.0
             layer_mesh.addColors(layer.getColors() * brightness)
 
             if self._cancel:
@@ -271,7 +273,7 @@ class _CreateTopLayersJob(Job):
         if not jump_mesh or jump_mesh.getVertices() is None:
             jump_mesh = None
 
-        self.setResult({ "layers": layer_mesh.build(), "jumps": jump_mesh })
+        self.setResult({"layers": layer_mesh.build(), "jumps": jump_mesh})
 
     def cancel(self):
         self._cancel = True

plugins/PerObjectSettingsTool/PerObjectSettingsPanel.qml

@@ -47,7 +47,9 @@ Item {
                     id: extruders_model
                     onRowsInserted: extruderSelector.visible = extruders_model.rowCount() > 1
                     onModelReset:   extruderSelector.visible = extruders_model.rowCount() > 1
+                    onModelChanged: extruderSelector.color = extruders_model.getItem(extruderSelector.currentIndex).colour
                 }
+                property string color: extruders_model.getItem(extruderSelector.currentIndex).colour
                 visible: extruders_model.rowCount() > 1
                 textRole: "name"
                 width: UM.Theme.getSize("setting_control").width
@@ -88,7 +90,7 @@ Item {
                             anchors.leftMargin: UM.Theme.getSize("default_lining").width
                             anchors.verticalCenter: parent.verticalCenter
 
-                            color: extruders_model.getItem(extruderSelector.currentIndex).colour
+                            color: extruderSelector.color
                             border.width: UM.Theme.getSize("default_lining").width
                             border.color: !enabled ? UM.Theme.getColor("setting_control_disabled_border") : UM.Theme.getColor("setting_control_border")
                         }
@@ -125,7 +127,11 @@ Item {
                         }
                     }
                 }
-
+                Component.onCompleted:
+                {
+                    // Ensure primary extruder is set as active
+                    UM.ActiveTool.setProperty("SelectedActiveExtruder", extruders_model.getItem(0).id)
+                }
                 onActivated: UM.ActiveTool.setProperty("SelectedActiveExtruder", extruders_model.getItem(index).id);
                 onModelChanged: updateCurrentIndex();
 
@@ -136,6 +142,7 @@ Item {
                         if(extruders_model.getItem(i).id == UM.ActiveTool.properties.getValue("SelectedActiveExtruder"))
                         {
                             extruderSelector.currentIndex = i;
+                            extruderSelector.color = extruders_model.getItem(i).colour;
                             return;
                         }
                     }
@@ -243,6 +250,7 @@ Item {
                     key: model.key
                     watchedProperties: [ "value", "enabled", "validationState" ]
                     storeIndex: 0
+                    removeUnusedValue: false
                 }
             }
         }

plugins/SolidView/SolidView.py

@@ -3,6 +3,7 @@
 
 from UM.View.View import View
 from UM.Scene.Iterator.DepthFirstIterator import DepthFirstIterator
+from UM.Scene.Selection import Selection
 from UM.Resources import Resources
 from UM.Application import Application
 from UM.Preferences import Preferences
@@ -57,21 +58,24 @@ class SolidView(View):
                     #    renderer.queueNode(scene.getRoot(), mesh = node.getBoundingBoxMesh(),mode = Renderer.RenderLines)
 
                     uniforms = {}
-                    if self._extruders_model.rowCount() > 0:
+                    if self._extruders_model.rowCount() == 0:
+                        material = Application.getInstance().getGlobalContainerStack().findContainer({ "type": "material" })
+                        material_color = material.getMetaDataEntry("color_code", default = self._extruders_model.defaultColours[0]) if material else self._extruders_model.defaultColours[0]
+                    else:
                         # Get color to render this mesh in from ExtrudersModel
                         extruder_index = 0
                         extruder_id = node.callDecoration("getActiveExtruder")
                         if extruder_id:
                             extruder_index = max(0, self._extruders_model.find("id", extruder_id))
 
-                        extruder_color = self._extruders_model.getItem(extruder_index)["colour"]
+                        material_color = self._extruders_model.getItem(extruder_index)["colour"]
                     try:
                         # Colors are passed as rgb hex strings (eg "#ffffff"), and the shader needs
                         # an rgba list of floats (eg [1.0, 1.0, 1.0, 1.0])
                         uniforms["diffuse_color"] = [
-                                int(extruder_color[1:3], 16) / 255,
-                                int(extruder_color[3:5], 16) / 255,
-                                int(extruder_color[5:7], 16) / 255,
+                            int(material_color[1:3], 16) / 255,
+                            int(material_color[3:5], 16) / 255,
+                            int(material_color[5:7], 16) / 255,
                             1.0
                         ]
                     except ValueError:
@@ -84,7 +88,7 @@ class SolidView(View):
                             renderer.queueNode(node, shader = self._enabled_shader, uniforms = uniforms)
                     else:
                         renderer.queueNode(node, material = self._enabled_shader, uniforms = uniforms)
-                if node.callDecoration("isGroup"):
+                if node.callDecoration("isGroup") and Selection.isSelected(node):
                     renderer.queueNode(scene.getRoot(), mesh = node.getBoundingBoxMesh(), mode = Renderer.RenderLines)
 
     def endRendering(self):

plugins/UltimakerMachineActions/BedLevelMachineAction.py

@@ -18,6 +18,11 @@ class BedLevelMachineAction(MachineAction):
         pass
 
     def _reset(self):
+        self._bed_level_position = 0
+        pass
+
+    @pyqtSlot()
+    def startBedLeveling(self):
         self._bed_level_position = 0
         printer_output_devices = self._getPrinterOutputDevices()
         if printer_output_devices:
@@ -52,4 +57,5 @@ class BedLevelMachineAction(MachineAction):
                 output_device.moveHead(0, 0, -3)
                 self._bed_level_position += 1
             elif self._bed_level_position >= 3:
+                output_device.sendCommand("M18") # Turn off all motors so the user can move the axes
                 self.setFinished()

plugins/UltimakerMachineActions/BedLevelMachineAction.qml

@@ -47,37 +47,37 @@ Cura.MachineAction
             text: catalog.i18nc("@label", "For every position; insert a piece of paper under the nozzle and adjust the print bed height. The print bed height is right when the paper is slightly gripped by the tip of the nozzle.")
         }
 
-        Item
+        Row
         {
             id: bedlevelingWrapper
             anchors.top: bedlevelingText.bottom
             anchors.topMargin: UM.Theme.getSize("default_margin").height
             anchors.horizontalCenter: parent.horizontalCenter
-            height: skipBedlevelingButton.height
-            width: bedlevelingButton.width + skipBedlevelingButton.width + UM.Theme.getSize("default_margin").height < bedLevelMachineAction.width ? bedlevelingButton.width + skipBedlevelingButton.width + UM.Theme.getSize("default_margin").height : bedLevelMachineAction.width
+            width: childrenRect.width
+            spacing: UM.Theme.getSize("default_margin").width
+
             Button
             {
-                id: bedlevelingButton
-                anchors.top: parent.top
-                anchors.left: parent.left
-                text: catalog.i18nc("@action:button","Move to Next Position");
+                id: startBedLevelingButton
+                text: catalog.i18nc("@action:button","Start Bed Leveling")
                 onClicked:
                 {
-                    manager.moveToNextLevelPosition()
+                    startBedLevelingButton.visible = false;
+                    bedlevelingButton.visible = true;
+                    checkupMachineAction.heatupHotendStarted = false;
+                    checkupMachineAction.heatupBedStarted = false;
+                    manager.startCheck();
                 }
             }
 
             Button
             {
-                id: skipBedlevelingButton
-                anchors.top: parent.width < bedLevelMachineAction.width ? parent.top : bedlevelingButton.bottom
-                anchors.topMargin: parent.width < bedLevelMachineAction.width ? 0 : UM.Theme.getSize("default_margin").height/2
-                anchors.left: parent.width < bedLevelMachineAction.width ? bedlevelingButton.right : parent.left
-                anchors.leftMargin: parent.width < bedLevelMachineAction.width ? UM.Theme.getSize("default_margin").width : 0
-                text: catalog.i18nc("@action:button","Skip bed leveling");
+                id: bedlevelingButton
+                text: catalog.i18nc("@action:button","Move to Next Position")
+                visible: false
                 onClicked:
                 {
-                    manager.setFinished()
+                    manager.moveToNextLevelPosition();
                 }
             }
         }

plugins/UltimakerMachineActions/UMOCheckupMachineAction.py

@@ -155,6 +155,7 @@ class UMOCheckupMachineAction(MachineAction):
         if output_devices:
             self._output_device = output_devices[0]
             try:
+                self._output_device.sendCommand("M18") # Turn off all motors so the user can move the axes
                 self._output_device.startPollEndstop()
                 self._output_device.bedTemperatureChanged.connect(self.bedTemperatureChanged)
                 self._output_device.hotendTemperaturesChanged.connect(self.hotendTemperatureChanged)

plugins/UltimakerMachineActions/UMOCheckupMachineAction.qml

@@ -39,38 +39,26 @@ Cura.MachineAction
             text: catalog.i18nc("@label", "It's a good idea to do a few sanity checks on your Ultimaker. You can skip this step if you know your machine is functional");
         }
 
-        Item
+        Row
         {
             id: startStopButtons
             anchors.top: pageDescription.bottom
             anchors.topMargin: UM.Theme.getSize("default_margin").height
             anchors.horizontalCenter: parent.horizontalCenter
-            height: childrenRect.height
-            width: startCheckButton.width + skipCheckButton.width + UM.Theme.getSize("default_margin").height < checkupMachineAction.width ? startCheckButton.width + skipCheckButton.width + UM.Theme.getSize("default_margin").height : checkupMachineAction.width
+            width: childrenRect.width
+            spacing: UM.Theme.getSize("default_margin").width
             Button
             {
                 id: startCheckButton
-                anchors.top: parent.top
-                anchors.left: parent.left
                 text: catalog.i18nc("@action:button","Start Printer Check");
                 onClicked:
                 {
-                    checkupMachineAction.heatupHotendStarted = false
-                    checkupMachineAction.heatupBedStarted = false
-                    manager.startCheck()
+                    checkupMachineAction.heatupHotendStarted = false;
+                    checkupMachineAction.heatupBedStarted = false;
+                    manager.startCheck();
+                    startCheckButton.visible = false;
                 }
             }
-
-            Button
-            {
-                id: skipCheckButton
-                anchors.top: parent.width < checkupMachineAction.width ? parent.top : startCheckButton.bottom
-                anchors.topMargin: parent.width < checkupMachineAction.width ? 0 : UM.Theme.getSize("default_margin").height/2
-                anchors.left: parent.width < checkupMachineAction.width ? startCheckButton.right : parent.left
-                anchors.leftMargin: parent.width < checkupMachineAction.width ? UM.Theme.getSize("default_margin").width : 0
-                text: catalog.i18nc("@action:button", "Skip Printer Check");
-                onClicked: manager.setFinished()
-            }
         }
 
         Item

plugins/UltimakerMachineActions/UMOUpgradeSelection.py

@@ -12,6 +12,9 @@ class UMOUpgradeSelection(MachineAction):
         super().__init__("UMOUpgradeSelection", catalog.i18nc("@action", "Select upgrades"))
         self._qml_url = "UMOUpgradeSelectionMachineAction.qml"
 
+    def _reset(self):
+        self.heatedBedChanged.emit()
+
     heatedBedChanged = pyqtSignal()
 
     @pyqtProperty(bool, notify = heatedBedChanged)

plugins/UltimakerMachineActions/UMOUpgradeSelectionMachineAction.qml

@@ -44,7 +44,7 @@ Cura.MachineAction
 
             text: catalog.i18nc("@label", "Heated bed (official kit or self-built)")
             checked: manager.hasHeatedBed
-            onClicked: manager.hasHeatedBed ? manager.removeHeatedBed() : manager.addHeatedBed()
+            onClicked: checked ? manager.addHeatedBed() : manager.removeHeatedBed()
         }
 
         UM.I18nCatalog { id: catalog; name: "cura"; }

plugins/UltimakerMachineActions/UpgradeFirmwareMachineAction.qml

@@ -56,29 +56,21 @@ Cura.MachineAction
             wrapMode: Text.WordWrap
             text: catalog.i18nc("@label", "Cura requires these new features and thus your firmware will most likely need to be upgraded. You can do so now.");
         }
-        Item
+        Row
         {
             anchors.top: upgradeText2.bottom
             anchors.topMargin: UM.Theme.getSize("default_margin").height
             anchors.horizontalCenter: parent.horizontalCenter
-            width: upgradeButton.width + skipUpgradeButton.width + UM.Theme.getSize("default_margin").height < upgradeFirmwareMachineAction.width ? upgradeButton.width + skipUpgradeButton.width + UM.Theme.getSize("default_margin").height : upgradeFirmwareMachineAction.width
+            width: childrenRect.width
+            spacing: UM.Theme.getSize("default_margin").width
             Button
             {
                 id: upgradeButton
-                anchors.top: parent.top
-                anchors.left: parent.left
                 text: catalog.i18nc("@action:button","Upgrade to Marlin Firmware");
-                onClicked: Cura.USBPrinterManager.updateAllFirmware()
-            }
-            Button
+                onClicked:
                 {
-                id: skipUpgradeButton
-                anchors.top: parent.width < upgradeFirmwareMachineAction.width ? parent.top : upgradeButton.bottom
-                anchors.topMargin: parent.width < upgradeFirmwareMachineAction.width ? 0 : UM.Theme.getSize("default_margin").height / 2
-                anchors.left: parent.width < upgradeFirmwareMachineAction.width ? upgradeButton.right : parent.left
-                anchors.leftMargin: parent.width < upgradeFirmwareMachineAction.width ? UM.Theme.getSize("default_margin").width : 0
-                text: catalog.i18nc("@action:button", "Skip Upgrade");
-                onClicked: manager.setFinished()
+                    Cura.USBPrinterManager.updateAllFirmware()
+                }
             }
         }
     }

resources/definitions/fdmprinter.def.json

@@ -150,6 +150,8 @@
                     "label": "Number extruders",
                     "description": "Number of extruder trains. An extruder train is the combination of a feeder, bowden tube, and nozzle.",
                     "default_value": 1,
+                    "minimum_value": "1",
+                    "maximum_value": "16",
                     "type": "int",
                     "settable_per_mesh": false,
                     "settable_per_extruder": false,
@@ -630,9 +632,8 @@
                             "type": "float",
                             "enabled": "support_enable",
                             "value": "line_width",
-                            "global_inherits_stack": "support_extruder_nr",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false
+                            "settable_per_extruder": true
                         },
                         "support_roof_line_width":
                         {
@@ -645,9 +646,8 @@
                             "type": "float",
                             "enabled": "support_roof_enable",
                             "value": "line_width",
-                            "global_inherits_stack": "support_extruder_nr",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false
+                            "settable_per_extruder": true
                         },
                         "prime_tower_line_width":
                         {
@@ -1238,8 +1238,8 @@
                     "default_value": false,
                     "enabled": "retraction_enable",
                     "settable_per_mesh": false,
-                    "settable_per_extruder": true,
-                    "children": {
+                    "settable_per_extruder": true
+                },
                 "retraction_hop_only_when_collides": {
                     "label": "Z Hop Only Over Printed Parts",
                     "description": "Only perform a Z Hop when moving over printed parts which cannot be avoided by horizontal motion by Avoid Printed Parts when Traveling.",
@@ -1260,8 +1260,6 @@
                     "enabled": "retraction_enable and retraction_hop_enabled",
                     "settable_per_mesh": false,
                     "settable_per_extruder": true
-                        }
-                    }
                 },
                 "material_standby_temperature":
                 {
@@ -1444,10 +1442,9 @@
                             "maximum_value_warning": "150",
                             "default_value": 60,
                             "value": "speed_print",
-                            "global_inherits_stack": "support_extruder_nr",
                             "enabled": "support_enable",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false,
+                            "settable_per_extruder": true,
                             "children":
                             {
                                 "speed_support_infill":
@@ -1461,10 +1458,9 @@
                                     "maximum_value": "299792458000",
                                     "maximum_value_warning": "150",
                                     "value": "speed_support",
-                                    "global_inherits_stack": "support_extruder_nr",
                                     "enabled": "support_enable",
                                     "settable_per_mesh": false,
-                                    "settable_per_extruder": false
+                                    "settable_per_extruder": true
                                 },
                                 "speed_support_roof":
                                 {
@@ -1478,9 +1474,8 @@
                                     "maximum_value_warning": "150",
                                     "enabled": "support_roof_enable and support_enable",
                                     "value": "speed_support / 1.5",
-                                    "global_inherits_stack": "support_extruder_nr",
                                     "settable_per_mesh": false,
-                                    "settable_per_extruder": false
+                                    "settable_per_extruder": true
                                 }
                             }
                         },
@@ -1516,15 +1511,45 @@
                 },
                 "speed_layer_0": {
                     "label": "Initial Layer Speed",
-                    "description": "The print speed for the initial layer. A lower value is advised to improve adhesion to the build plate.",
+                    "description": "The speed for the initial layer. A lower value is advised to improve adhesion to the build plate.",
                     "unit": "mm/s",
                     "type": "float",
                     "default_value": 30,
                     "minimum_value": "0.1",
                     "maximum_value": "299792458000",
                     "maximum_value_warning": "300",
+                    "settable_per_mesh": true,
+                    "children":
+                    {
+                        "speed_print_layer_0":
+                        {
+                            "label": "Initial Layer Print Speed",
+                            "description": "The speed of printing for the initial layer. A lower value is advised to improve adhesion to the build plate.",
+                            "unit": "mm/s",
+                            "type": "float",
+                            "default_value": 30,
+                            "value": "speed_layer_0",
+                            "minimum_value": "0.1",
+                            "maximum_value": "299792458000",
+                            "maximum_value_warning": "300",
                             "settable_per_mesh": true
                         },
+                        "speed_travel_layer_0":
+                        {
+                            "label": "Initial Layer Travel Speed",
+                            "description": "The speed of travel moves in the initial layer. A lower value is advised to prevent pulling previously printed parts away from the build plate.",
+                            "unit": "mm/s",
+                            "type": "float",
+                            "default_value": 60,
+                            "value": "speed_layer_0 * speed_travel / speed_print",
+                            "minimum_value": "0.1",
+                            "maximum_value": "299792458000",
+                            "maximum_value_warning": "300",
+                            "settable_per_mesh": true,
+                            "settable_per_extruder": true
+                        }
+                    }
+                },
                 "skirt_brim_speed": {
                     "label": "Skirt/Brim Speed",
                     "description": "The speed at which the skirt and brim are printed. Normally this is done at the initial layer speed, but sometimes you might want to print the skirt or brim at a different speed.",
@@ -1650,10 +1675,9 @@
                             "maximum_value_warning": "10000",
                             "default_value": 3000,
                             "value": "acceleration_print",
-                            "global_inherits_stack": "support_extruder_nr",
                             "enabled": "acceleration_enabled and support_enable",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false,
+                            "settable_per_extruder": true,
                             "children": {
                                 "acceleration_support_infill": {
                                     "label": "Support Infill Acceleration",
@@ -1662,13 +1686,12 @@
                                     "type": "float",
                                     "default_value": 3000,
                                     "value": "acceleration_support",
-                                    "global_inherits_stack": "support_extruder_nr",
                                     "minimum_value": "0.1",
                                     "minimum_value_warning": "100",
                                     "maximum_value_warning": "10000",
                                     "enabled": "acceleration_enabled and support_enable",
                                     "settable_per_mesh": false,
-                                    "settable_per_extruder": false
+                                    "settable_per_extruder": true
                                 },
                                 "acceleration_support_roof": {
                                     "label": "Support Roof Acceleration",
@@ -1677,13 +1700,12 @@
                                     "type": "float",
                                     "default_value": 3000,
                                     "value": "acceleration_support",
-                                    "global_inherits_stack": "support_extruder_nr",
                                     "minimum_value": "0.1",
                                     "minimum_value_warning": "100",
                                     "maximum_value_warning": "10000",
                                     "enabled": "acceleration_enabled and support_roof_enable and support_enable",
                                     "settable_per_mesh": false,
-                                    "settable_per_extruder": false
+                                    "settable_per_extruder": true
                                 }
                             }
                         },
@@ -1841,10 +1863,9 @@
                             "maximum_value_warning": "50",
                             "default_value": 20,
                             "value": "jerk_print",
-                            "global_inherits_stack": "support_extruder_nr",
                             "enabled": "jerk_enabled and support_enable",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false,
+                            "settable_per_extruder": true,
                             "children": {
                                 "jerk_support_infill": {
                                     "label": "Support Infill Jerk",
@@ -1853,13 +1874,12 @@
                                     "type": "float",
                                     "default_value": 20,
                                     "value": "jerk_support",
-                                    "global_inherits_stack": "support_extruder_nr",
                                     "minimum_value": "0.1",
                                     "minimum_value_warning": "5",
                                     "maximum_value_warning": "50",
                                     "enabled": "jerk_enabled and support_enable",
                                     "settable_per_mesh": false,
-                                    "settable_per_extruder": false
+                                    "settable_per_extruder": true
                                 },
                                 "jerk_support_roof": {
                                     "label": "Support Roof Jerk",
@@ -1868,13 +1888,12 @@
                                     "type": "float",
                                     "default_value": 20,
                                     "value": "jerk_support",
-                                    "global_inherits_stack": "support_extruder_nr",
                                     "minimum_value": "0.1",
                                     "minimum_value_warning": "5",
                                     "maximum_value_warning": "50",
                                     "enabled": "jerk_enabled and support_roof_enable and support_enable",
                                     "settable_per_mesh": false,
-                                    "settable_per_extruder": false
+                                    "settable_per_extruder": true
                                 }
                             }
                         },
@@ -2180,7 +2199,7 @@
                     "default_value": "zigzag",
                     "enabled": "support_enable",
                     "settable_per_mesh": false,
-                    "settable_per_extruder": false
+                    "settable_per_extruder": true
                 },
                 "support_connect_zigzags":
                 {
@@ -2190,7 +2209,7 @@
                     "default_value": true,
                     "enabled": "support_enable and (support_pattern == \"zigzag\")",
                     "settable_per_mesh": false,
-                    "settable_per_extruder": false
+                    "settable_per_extruder": true
                 },
                 "support_infill_rate":
                 {
@@ -2203,7 +2222,7 @@
                     "default_value": 15,
                     "enabled": "support_enable",
                     "settable_per_mesh": false,
-                    "settable_per_extruder": false,
+                    "settable_per_extruder": true,
                     "children": {
                         "support_line_distance":
                         {
@@ -2216,7 +2235,7 @@
                             "enabled": "support_enable",
                             "value": "(support_line_width * 100) / support_infill_rate * (2 if support_pattern == \"grid\" else (3 if support_pattern == \"triangles\" else 1))",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false
+                            "settable_per_extruder": true
                         }
                     }
                 },
@@ -2389,7 +2408,7 @@
                     "maximum_value_warning": "100",
                     "enabled":"support_roof_enable and support_enable",
                     "settable_per_mesh": false,
-                    "settable_per_extruder": false,
+                    "settable_per_extruder": true,
                     "children":
                     {
                         "support_roof_line_distance":
@@ -2403,7 +2422,7 @@
                             "value": "0 if support_roof_density == 0 else (support_roof_line_width * 100) / support_roof_density * (2 if support_roof_pattern == \"grid\" else (3 if support_roof_pattern == \"triangles\" else 1))",
                             "enabled": "support_roof_enable and support_enable",
                             "settable_per_mesh": false,
-                            "settable_per_extruder": false
+                            "settable_per_extruder": true
                         }
                     }
                 },
@@ -2423,7 +2442,7 @@
                     "default_value": "concentric",
                     "enabled": "support_roof_enable and support_enable",
                     "settable_per_mesh": false,
-                    "settable_per_extruder": false
+                    "settable_per_extruder": true
                 },
                 "support_use_towers":
                 {
@@ -3357,9 +3376,9 @@
                     "type": "float",
                     "minimum_value": "0",
                     "maximum_value_warning": "9999",
-                    "default_value": 0,
-                    "value": "9999 if draft_shield_height_limitation == 'full' and draft_shield_enabled else 0.0",
-                    "enabled": "draft_shield_height_limitation == \"limited\"",
+                    "default_value": 10,
+                    "value": "10",
+                    "enabled": "draft_shield_enabled and draft_shield_height_limitation == \"limited\"",
                     "settable_per_mesh": false,
                     "settable_per_extruder": false
                 },

resources/definitions/printrbot_simple.def.json

@@ -7,6 +7,7 @@
         "visible": true,
         "author": "Calvindog717",
         "manufacturer": "PrintrBot",
+        "category": "Other",
         "file_formats": "text/x-gcode"
     },
 

resources/definitions/ultimaker2.def.json

@@ -57,7 +57,7 @@
             "default_value": 2
         },
         "gantry_height": {
-            "default_value": 55
+            "default_value": 48
         },
         "machine_use_extruder_offset_to_offset_coords": {
             "default_value": true

resources/definitions/ultimaker_original.def.json

@@ -15,7 +15,7 @@
         "preferred_material": "*pla*",
         "preferred_quality": "*normal*",
         "first_start_actions": ["UMOUpgradeSelection", "UMOCheckup", "BedLevel"],
-        "supported_actions": ["UMOCheckup", "UpgradeFirmware", "BedLevel", "UMOUpgradeSelection"]
+        "supported_actions": ["UMOUpgradeSelection", "UMOCheckup", "BedLevel", "UpgradeFirmware"]
     },
 
     "overrides": {

resources/qml/Actions.qml

@@ -27,6 +27,7 @@ Item
 
     property alias multiplyObject: multiplyObjectAction;
 
+    property alias selectAll: selectAllAction;
     property alias deleteAll: deleteAllAction;
     property alias reloadAll: reloadAllAction;
     property alias resetAllTranslation: resetAllTranslationAction;
@@ -119,7 +120,7 @@ Item
     Action
     {
         id: updateProfileAction;
-        enabled: Cura.MachineManager.isGlobalStackValid && Cura.MachineManager.hasUserSettings && !Cura.MachineManager.isReadOnly(Cura.MachineManager.activeQualityId)
+        enabled: Cura.MachineManager.isActiveStackValid && Cura.MachineManager.hasUserSettings && !Cura.MachineManager.isReadOnly(Cura.MachineManager.activeQualityId)
         text: catalog.i18nc("@action:inmenu menubar:profile","&Update profile with current settings");
         onTriggered: Cura.MachineManager.updateQualityContainerFromUserContainer()
     }
@@ -135,7 +136,7 @@ Item
     Action
     {
         id: addProfileAction;
-        enabled: Cura.MachineManager.isGlobalStackValid && Cura.MachineManager.hasUserSettings
+        enabled: Cura.MachineManager.isActiveStackValid && Cura.MachineManager.hasUserSettings
         text: catalog.i18nc("@action:inmenu menubar:profile","&Create profile from current settings...");
     }
 
@@ -230,6 +231,16 @@ Item
         iconName: "edit-duplicate"
     }
 
+    Action
+    {
+        id: selectAllAction;
+        text: catalog.i18nc("@action:inmenu menubar:edit","&Select All Objects");
+        enabled: UM.Controller.toolsEnabled;
+        iconName: "edit-select-all";
+        shortcut: "Ctrl+A";
+        onTriggered: Printer.selectAll();
+    }
+
     Action
     {
         id: deleteAllAction;

resources/qml/AddMachineDialog.qml

@@ -16,12 +16,23 @@ UM.Dialog
 {
     id: base
     title: catalog.i18nc("@title:window", "Add Printer")
-    property string activeManufacturer: "Ultimaker";
+    property string preferredCategory: "Ultimaker"
+    property string activeCategory: preferredCategory
+
+    onVisibilityChanged:
+    {
+        // Reset selection and machine name
+        if (visible) {
+            activeCategory = preferredCategory;
+            machineList.currentIndex = 0;
+            machineName.text = getMachineName();
+        }
+    }
 
     signal machineAdded(string id)
     function getMachineName()
     {
-        var name = machineList.model.getItem(machineList.currentIndex).name
+        var name = machineList.model.get(machineList.currentIndex).name
         return name
     }
 
@@ -36,16 +47,32 @@ UM.Dialog
             right: parent.right;
             bottom: parent.bottom;
         }
+
         ListView
         {
             id: machineList
 
-            model: UM.DefinitionContainersModel
+            model: ListModel
             {
-                id: machineDefinitionsModel
-                filter: {"visible":true}
+                id: sortedMachineDefinitionsModel
+                Component.onCompleted: {
+                    // DefinitionContainersModel is sorted alphabetically, but we want the preferred
+                    // category on top so we create a custom-sorted ListModel from it.
+                    var items = [];
+                    for(var i in machineDefinitionsModel.items) {
+                        var item = machineDefinitionsModel.getItem(i);
+                        if (item["category"] == preferredCategory)
+                            sortedMachineDefinitionsModel.append(item);
+                        else
+                            items.push(item);
                     }
-            section.property: "manufacturer"
+                    for(var i in items) {
+                        sortedMachineDefinitionsModel.append(items[i]);
+                    }
+                }
+            }
+
+            section.property: "category"
             section.delegate: Button
             {
                 text: section
@@ -76,16 +103,25 @@ UM.Dialog
                             sourceSize.width: width
                             sourceSize.height: width
                             color: palette.windowText
-                            source: base.activeManufacturer == section ? UM.Theme.getIcon("arrow_bottom") : UM.Theme.getIcon("arrow_right")
+                            source: base.activeCategory == section ? UM.Theme.getIcon("arrow_bottom") : UM.Theme.getIcon("arrow_right")
                         }
                     }
                 }
 
                 onClicked:
                 {
-                    base.activeManufacturer = section;
-                    machineList.currentIndex = machineList.model.find("manufacturer", section)
-                    machineName.text = getMachineName()
+                    base.activeCategory = section;
+                    if (machineList.model.get(machineList.currentIndex).category != section) {
+                        // Find the first machine from this category
+                        for(var i = 0; i < sortedMachineDefinitionsModel.count; i++) {
+                            var item = sortedMachineDefinitionsModel.get(i);
+                            if (item.category == section) {
+                                machineList.currentIndex = i;
+                                break;
+                            }
+                        }
+                    }
+                    machineName.text = getMachineName();
                 }
             }
 
@@ -114,7 +150,7 @@ UM.Dialog
                 states: State
                 {
                     name: "collapsed";
-                    when: base.activeManufacturer != model.manufacturer;
+                    when: base.activeCategory != model.category;
 
                     PropertyChanges { target: machineButton; opacity: 0; height: 0; }
                 }
@@ -161,7 +197,7 @@ UM.Dialog
         onClicked:
         {
             base.visible = false
-            var item = machineList.model.getItem(machineList.currentIndex);
+            var item = machineList.model.get(machineList.currentIndex);
             Cura.MachineManager.addMachine(machineName.text, item.id)
             base.machineAdded(item.id) // Emit signal that the user added a machine.
         }
@@ -174,6 +210,11 @@ UM.Dialog
             id: catalog;
             name: "cura";
         }
+        UM.DefinitionContainersModel
+        {
+            id: machineDefinitionsModel
+            filter: { "visible": true }
+        }
         SystemPalette { id: palette }
         ExclusiveGroup { id: printerGroup; }
     }

resources/qml/Cura.qml

@@ -54,10 +54,7 @@ UM.MainWindow
         Keys.onPressed: {
             if (event.key == Qt.Key_Backspace)
             {
-                if(objectContextMenu.objectId != 0)
-                {
-                    Printer.deleteObject(objectContextMenu.objectId);
-                }
+                Cura.Actions.deleteSelection.trigger()
             }
         }
 
@@ -121,6 +118,7 @@ UM.MainWindow
                 MenuItem { action: Cura.Actions.undo; }
                 MenuItem { action: Cura.Actions.redo; }
                 MenuSeparator { }
+                MenuItem { action: Cura.Actions.selectAll; }
                 MenuItem { action: Cura.Actions.deleteSelection; }
                 MenuItem { action: Cura.Actions.deleteAll; }
                 MenuItem { action: Cura.Actions.resetAllTranslation; }
@@ -540,6 +538,7 @@ UM.MainWindow
         MenuItem { action: Cura.Actions.deleteObject; }
         MenuItem { action: Cura.Actions.multiplyObject; }
         MenuSeparator { }
+        MenuItem { action: Cura.Actions.selectAll; }
         MenuItem { action: Cura.Actions.deleteAll; }
         MenuItem { action: Cura.Actions.reloadAll; }
         MenuItem { action: Cura.Actions.resetAllTranslation; }
@@ -592,6 +591,7 @@ UM.MainWindow
     Menu
     {
         id: contextMenu;
+        MenuItem { action: Cura.Actions.selectAll; }
         MenuItem { action: Cura.Actions.deleteAll; }
         MenuItem { action: Cura.Actions.reloadAll; }
         MenuItem { action: Cura.Actions.resetAllTranslation; }

resources/qml/MonitorButton.qml

@@ -22,7 +22,7 @@ Rectangle
     {
         if(!printerConnected)
             return UM.Theme.getColor("status_offline")
-        else if(Cura.MachineManager.printerOutputDevices[0].jobState == "printing" || Cura.MachineManager.printerOutputDevices[0].jobState == "pre_print")
+        else if(Cura.MachineManager.printerOutputDevices[0].jobState == "printing" || Cura.MachineManager.printerOutputDevices[0].jobState == "pre_print" || Cura.MachineManager.printerOutputDevices[0].jobState == "wait_cleanup" )
             return UM.Theme.getColor("status_busy")
         else if(Cura.MachineManager.printerOutputDevices[0].jobState == "ready" || Cura.MachineManager.printerOutputDevices[0].jobState == "")
             return UM.Theme.getColor("status_ready")
@@ -30,6 +30,8 @@ Rectangle
             return UM.Theme.getColor("status_paused")
         else if (Cura.MachineManager.printerOutputDevices[0].jobState == "error")
             return UM.Theme.getColor("status_stopped")
+        else if (Cura.MachineManager.printerOutputDevices[0].jobState == "offline")
+            return UM.Theme.getColor("status_offline")
         else
             return UM.Theme.getColor("text")
     }
@@ -41,7 +43,10 @@ Rectangle
     {
         if(!printerConnected)
         {
-            return catalog.i18nc("@label:", "Please check your printer connections")
+            return catalog.i18nc("@label:", "Not connected to a printer")
+        } else if(Cura.MachineManager.printerOutputDevices[0].jobState == "offline")
+        {
+            return catalog.i18nc("@label:", "Lost connection with the printer")
         } else if(Cura.MachineManager.printerOutputDevices[0].jobState == "printing")
         {
             return catalog.i18nc("@label:", "Printing...")
@@ -53,6 +58,10 @@ Rectangle
         {
             return catalog.i18nc("@label:", "Preparing...")
         }
+        else if(Cura.MachineManager.printerOutputDevices[0].jobState == "wait_cleanup")
+        {
+            return catalog.i18nc("@label:", "Waiting for cleanup...")
+        }
         else
         {
             return " "

resources/qml/Preferences/GeneralPage.qml

@@ -192,6 +192,7 @@ UM.PreferencesPage
             }
         }
 
+
         UM.TooltipArea {
             width: childrenRect.width;
             height: childrenRect.height;
@@ -215,6 +216,19 @@ UM.PreferencesPage
                 }
             }
         }
+        UM.TooltipArea {
+            width: childrenRect.width
+            height: childrenRect.height
+            text: catalog.i18nc("@info:tooltip", "Should only the top layers be displayed in layerview?")
+
+            CheckBox
+            {
+                id: topLayersOnlyCheckbox
+                text: catalog.i18nc("@option:check", "Only display top layer(s) in layer view")
+                checked: boolCheck(UM.Preferences.getValue("view/only_show_top_layers"))
+                onCheckedChanged: UM.Preferences.setValue("view/only_show_top_layers", checked)
+            }
+        }
 
         Item
         {

resources/qml/Preferences/MachinesPage.qml

@@ -107,6 +107,12 @@ UM.ManagementPage
                 contents = content;
                 content.onCompleted.connect(hide)
             }
+            rightButtons: Button
+            {
+                text: catalog.i18nc("@action:button", "Close")
+                iconName: "dialog-close"
+                onClicked: actionDialog.accept()
+            }
         }
 
         Row

resources/qml/Preferences/MaterialsPage.qml

@@ -67,6 +67,8 @@ UM.ManagementPage
             enabled: base.currentItem != null && base.currentItem.id != Cura.MachineManager.activeMaterialId
             onClicked: Cura.MachineManager.setActiveMaterial(base.currentItem.id)
         },
+        /*
+        // disabled because it has a lot of issues
         Button
         {
             text: catalog.i18nc("@action:button", "Duplicate");
@@ -89,7 +91,7 @@ UM.ManagementPage
 
                 Cura.MachineManager.setActiveMaterial(material_id)
             }
-        },
+        }, */
         Button
         {
             text: catalog.i18nc("@action:button", "Remove");
@@ -253,7 +255,7 @@ UM.ManagementPage
                 else if(result.status == "success")
                 {
                     messageDialog.icon = StandardIcon.Information
-                    messageDialog.text = catalog.i18nc("@info:status", "Successfully exported material to <filename>%1</filename>").arg(fileUrl)
+                    messageDialog.text = catalog.i18nc("@info:status", "Successfully exported material to <filename>%1</filename>").arg(result.path)
                     messageDialog.open()
                 }
                 CuraApplication.setDefaultPath("dialog_material_path", folder)

resources/qml/SaveButton.qml

@@ -84,6 +84,27 @@ Rectangle {
         anchors.topMargin: UM.Theme.getSize("default_margin").height
         anchors.left: parent.left
 
+        Row {
+            id: additionalComponentsRow
+            anchors.top: parent.top
+            anchors.right: saveToButton.visible ? saveToButton.left : parent.right
+            anchors.rightMargin: UM.Theme.getSize("default_margin").width
+
+            spacing: UM.Theme.getSize("default_margin").width
+        }
+
+        Connections {
+            target: Printer
+            onAdditionalComponentsChanged:
+            {
+                if(areaId == "saveButton") {
+                    for (var component in Printer.additionalComponents["saveButton"]) {
+                        Printer.additionalComponents["saveButton"][component].parent = additionalComponentsRow
+                    }
+                }
+            }
+        }
+
         Button {
             id: saveToButton
 
@@ -102,8 +123,7 @@ Rectangle {
             }
 
             style: ButtonStyle {
-                background:
-                Rectangle
+                background: Rectangle
                 {
                     border.width: UM.Theme.getSize("default_lining").width
                     border.color: !control.enabled ? UM.Theme.getColor("action_button_disabled_border") :

resources/qml/Settings/SettingComboBox.qml

@@ -86,18 +86,18 @@ SettingItem
             }
         }
 
-        onActivated: { forceActiveFocus(); provider.setPropertyValue("value", definition.options[index].key) }
+        onActivated: { forceActiveFocus(); propertyProvider.setPropertyValue("value", definition.options[index].key) }
         onModelChanged: updateCurrentIndex();
 
         Connections
         {
-            target: provider
+            target: propertyProvider
             onPropertiesChanged: control.updateCurrentIndex()
         }
 
         function updateCurrentIndex() {
             for(var i = 0; i < definition.options.length; ++i) {
-                if(definition.options[i].key == provider.properties.value) {
+                if(definition.options[i].key == propertyProvider.properties.value) {
                     currentIndex = i;
                     return;
                 }

resources/qml/Settings/SettingExtruder.qml

@@ -105,13 +105,13 @@ SettingItem
         onActivated:
         {
             forceActiveFocus();
-            provider.setPropertyValue("value", extruders_model.getItem(index).index)
+            propertyProvider.setPropertyValue("value", extruders_model.getItem(index).index)
         }
         onModelChanged: updateCurrentIndex();
 
         Connections
         {
-            target: provider
+            target: propertyProvider
             onPropertiesChanged: control.updateCurrentIndex();
         }
 
@@ -119,7 +119,7 @@ SettingItem
         {
             for(var i = 0; i < extruders_model.rowCount(); ++i)
             {
-                if(extruders_model.getItem(i).index == provider.properties.value)
+                if(extruders_model.getItem(i).index == propertyProvider.properties.value)
                 {
                     currentIndex = i;
                     return;

resources/qml/Settings/SettingItem.qml

@@ -138,7 +138,7 @@ Item {
             {
                 id: linkedSettingIcon;
 
-                visible: base.settablePerExtruder != "True" && base.showLinkedSettingIcon
+                visible: Cura.MachineManager.activeStackId != Cura.MachineManager.activeMachineId && base.settablePerExtruder != "True" && base.showLinkedSettingIcon
 
                 height: parent.height;
                 width: height;

resources/qml/Sidebar.qml

@@ -108,7 +108,7 @@ Rectangle
                 iconSource: {
                     if(!printerConnected)
                         return UM.Theme.getIcon("tab_monitor")
-                    else if(Cura.MachineManager.printerOutputDevices[0].jobState == "printing" || Cura.MachineManager.printerOutputDevices[0].jobState == "pre_print")
+                    else if(Cura.MachineManager.printerOutputDevices[0].jobState == "printing" || Cura.MachineManager.printerOutputDevices[0].jobState == "pre_print" || Cura.MachineManager.printerOutputDevices[0].jobState == "wait_cleanup" )
                         return UM.Theme.getIcon("tab_monitor_busy")
                     else if(Cura.MachineManager.printerOutputDevices[0].jobState == "ready" || Cura.MachineManager.printerOutputDevices[0].jobState == "")
                         return UM.Theme.getIcon("tab_monitor_connected")
@@ -116,6 +116,8 @@ Rectangle
                         return UM.Theme.getIcon("tab_monitor_paused")
                     else if (Cura.MachineManager.printerOutputDevices[0].jobState == "error")
                         return UM.Theme.getIcon("tab_monitor_stopped")
+                    else if (Cura.MachineManager.printerOutputDevices[0].jobState == "offline")
+                        return UM.Theme.getIcon("tab_monitor_offline")
                     else
                         return UM.Theme.getIcon("tab_monitor")
                 }

resources/shaders/transparent_object.shader

@@ -1,7 +1,7 @@
 [shaders]
 vertex =
-    uniform highp mat4 u_viewProjectionMatrix;
     uniform highp mat4 u_modelMatrix;
+    uniform highp mat4 u_viewProjectionMatrix;
     uniform highp mat4 u_normalMatrix;
 
     attribute highp vec4 a_vertex;
@@ -10,7 +10,6 @@ vertex =
 
     varying highp vec3 v_vertex;
     varying highp vec3 v_normal;
-    varying highp vec2 v_uvs;
 
     void main()
     {
@@ -19,56 +18,47 @@ vertex =
 
         v_vertex = world_space_vert.xyz;
         v_normal = (u_normalMatrix * normalize(a_normal)).xyz;
-
-        v_uvs = a_uvs;
     }
 
 fragment =
     uniform mediump vec4 u_ambientColor;
     uniform mediump vec4 u_diffuseColor;
     uniform highp vec3 u_lightPosition;
-    uniform highp vec3 u_viewPosition;
+
     uniform mediump float u_opacity;
-    uniform sampler2D u_texture;
 
     varying highp vec3 v_vertex;
     varying highp vec3 v_normal;
-    varying highp vec2 v_uvs;
 
     void main()
     {
-        // Copied from platform.shader, removed texture
-        mediump vec4 final_color = vec4(0.0);
+        mediump vec4 finalColor = vec4(0.0);
 
         /* Ambient Component */
-        final_color += u_ambientColor;
+        finalColor += u_ambientColor;
 
         highp vec3 normal = normalize(v_normal);
-        highp vec3 light_dir = normalize(u_lightPosition - v_vertex);
+        highp vec3 lightDir = normalize(u_lightPosition - v_vertex);
 
         /* Diffuse Component */
-        highp float n_dot_l = clamp(dot(normal, light_dir), 0.0, 1.0);
-        final_color += (n_dot_l * u_diffuseColor);
+        highp float NdotL = clamp(abs(dot(normal, lightDir)), 0.0, 1.0);
+        finalColor += (NdotL * u_diffuseColor);
 
-        final_color.a = u_opacity;
-
-        gl_FragColor = final_color;
+        gl_FragColor = finalColor;
+        gl_FragColor.a = u_opacity;
     }
 
 [defaults]
-u_ambientColor = [0.3, 0.3, 0.3, 1.0]
-u_diffuseColor = [1.0, 1.0, 1.0, 1.0]
+u_ambientColor = [0.1, 0.1, 0.1, 1.0]
+u_diffuseColor = [0.4, 0.4, 0.4, 1.0]
 u_opacity = 0.5
-u_texture = 0
 
 [bindings]
-u_viewProjectionMatrix = view_projection_matrix
 u_modelMatrix = model_matrix
+u_viewProjectionMatrix = view_projection_matrix
 u_normalMatrix = normal_matrix
 u_lightPosition = light_0_position
-u_viewPosition = camera_position
 
 [attributes]
 a_vertex = vertex
 a_normal = normal
-a_uvs = uv0