Cura/cura/Settings/ProfilesModel.py
Ghostkeeper 81e07b1530
Use stack properties instead of .findContainer(type = ...)
Recently we changed the empty containers such that there is only one empty container instance and it doesn't have the proper type any more. Instead we have properties on the stack that allows us to find the container with the proper type. It's faster and easier to use.
We've had a few bugs about this so I decided to update all of them to remove those for the future, except the ones in plugins/MachineSettingsAction/MachineSettingsAction.py because we have a pending pull request that fixes those. Fixing them would give merge conflicts for fieldOfView.

It doesn't really belong to CURA-4024 but I'm sticking it under that nomer anyway to get it reviewed.
2017-07-10 10:35:03 +02:00

116 lines
5.7 KiB
Python

# Copyright (c) 2016 Ultimaker B.V.
# Cura is released under the terms of the AGPLv3 or higher.
from PyQt5.QtCore import Qt
from UM.Application import Application
from UM.Settings.ContainerRegistry import ContainerRegistry
from UM.Settings.Models.InstanceContainersModel import InstanceContainersModel
from cura.QualityManager import QualityManager
from cura.Settings.ExtruderManager import ExtruderManager
## QML Model for listing the current list of valid quality profiles.
#
class ProfilesModel(InstanceContainersModel):
LayerHeightRole = Qt.UserRole + 1001
def __init__(self, parent = None):
super().__init__(parent)
self.addRoleName(self.LayerHeightRole, "layer_height")
Application.getInstance().globalContainerStackChanged.connect(self._update)
Application.getInstance().getMachineManager().activeVariantChanged.connect(self._update)
Application.getInstance().getMachineManager().activeStackChanged.connect(self._update)
Application.getInstance().getMachineManager().activeMaterialChanged.connect(self._update)
# Factory function, used by QML
@staticmethod
def createProfilesModel(engine, js_engine):
return ProfilesModel.getInstance()
## Get the singleton instance for this class.
@classmethod
def getInstance(cls) -> "ProfilesModel":
# Note: Explicit use of class name to prevent issues with inheritance.
if not ProfilesModel.__instance:
ProfilesModel.__instance = cls()
return ProfilesModel.__instance
__instance = None # type: "ProfilesModel"
## Fetch the list of containers to display.
#
# See UM.Settings.Models.InstanceContainersModel._fetchInstanceContainers().
def _fetchInstanceContainers(self):
global_container_stack = Application.getInstance().getGlobalContainerStack()
if global_container_stack is None:
return []
# Get the list of extruders and place the selected extruder at the front of the list.
extruder_manager = ExtruderManager.getInstance()
active_extruder = extruder_manager.getActiveExtruderStack()
extruder_stacks = extruder_manager.getActiveExtruderStacks()
if active_extruder in extruder_stacks:
extruder_stacks.remove(active_extruder)
extruder_stacks = [active_extruder] + extruder_stacks
# Fetch the list of useable qualities across all extruders.
# The actual list of quality profiles come from the first extruder in the extruder list.
return QualityManager.getInstance().findAllUsableQualitiesForMachineAndExtruders(global_container_stack,
extruder_stacks)
## Re-computes the items in this model, and adds the layer height role.
def _recomputeItems(self):
#Some globals that we can re-use.
global_container_stack = Application.getInstance().getGlobalContainerStack()
if global_container_stack is None:
return
container_registry = ContainerRegistry.getInstance()
machine_manager = Application.getInstance().getMachineManager()
unit = global_container_stack.getBottom().getProperty("layer_height", "unit")
if not unit:
unit = ""
for item in super()._recomputeItems():
profile = container_registry.findContainers(id = item["id"])
if not profile:
item["layer_height"] = "" #Can't update a profile that is unknown.
yield item
continue
#Easy case: This profile defines its own layer height.
profile = profile[0]
if profile.hasProperty("layer_height", "value"):
item["layer_height"] = str(profile.getProperty("layer_height", "value")) + unit
yield item
continue
#Quality-changes profile that has no value for layer height. Get the corresponding quality profile and ask that profile.
quality_type = profile.getMetaDataEntry("quality_type", None)
if quality_type:
quality_results = machine_manager.determineQualityAndQualityChangesForQualityType(quality_type)
for quality_result in quality_results:
if quality_result["stack"] is global_container_stack:
quality = quality_result["quality"]
break
else: #No global container stack in the results:
if quality_results:
quality = quality_results[0]["quality"] #Take any of the extruders.
else:
quality = None
if quality and quality.hasProperty("layer_height", "value"):
item["layer_height"] = str(quality.getProperty("layer_height", "value")) + unit
yield item
continue
#Quality has no value for layer height either. Get the layer height from somewhere lower in the stack.
skip_until_container = global_container_stack.material
if not skip_until_container: #No material in stack.
skip_until_container = global_container_stack.variant
if not skip_until_container: #No variant in stack.
skip_until_container = global_container_stack.getBottom()
item["layer_height"] = str(global_container_stack.getRawProperty("layer_height", "value", skip_until_container = skip_until_container.getId())) + unit #Fall through to the currently loaded material.
yield item