Cura/cura/Settings/ContainerManager.py
Arjen Hiemstra ce065d110d Finish implementation of ContainerManager
Contributes to CURA-341
2016-07-05 16:45:23 +02:00

181 lines
6.4 KiB
Python

# Copyright (c) 2016 Ultimaker B.V.
# Cura is released under the terms of the AGPLv3 or higher.
from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal
import UM.Settings
from UM.i18n import i18nCatalog
catalog = i18nCatalog("cura")
## Manager class that contains common actions to deal with containers in Cura.
#
# This is primarily intended as a class to be able to perform certain actions
# from within QML. We want to be able to trigger things like removing a container
# when a certain action happens. This can be done through this class.
class ContainerManager(QObject):
def __init__(self, parent = None):
super().__init__(parent)
self._registry = UM.Settings.ContainerRegistry.getInstance()
## Create a duplicate of the specified container
#
# This will create and add a duplicate of the container corresponding
# to the container ID.
#
# \param container_id \type{str} The ID of the container to duplicate.
#
# \return The ID of the new container, or an empty string if duplication failed.
@pyqtSlot(str, result = str)
def duplicateContainer(self, container_id):
containers = self._registry.findContainers(None, id = container_id)
if not containers:
return ""
container = containers[0]
new_container = None
new_name = self._registry.uniqueName(container.getName())
if hasattr(container, "duplicate"):
new_container = container.duplicate(new_name)
else:
new_container = container.__class__(new_name)
new_container.deserialize(container.serialize())
new_container.setName(new_name)
if new_container:
self._registry.addContainer(new_container)
return new_container.getId()
## Change the name of a specified container to a new name.
#
# \param container_id \type{str} The ID of the container to change the name of.
# \param new_id \type{str} The new ID of the container.
# \param new_name \type{str} The new name of the specified container.
#
# \return True if successful, False if not.
@pyqtSlot(str, str, str, result = bool)
def renameContainer(self, container_id, new_id, new_name):
containers = self._registry.findContainers(None, id = container_id)
if not containers:
return False
container = containers[0]
# First, remove the container from the registry. This will clean up any files related to the container.
self._registry.removeContainer(container)
# Ensure we have a unique name for the container
new_name = self._registry.uniqueName(new_name)
# Then, update the name and ID of the container
container.setName(new_name)
container._id = new_id # TODO: Find a nicer way to set a new, unique ID
# Finally, re-add the container so it will be properly serialized again.
self._registry.addContainer(container)
return True
## Remove the specified container.
#
# \param container_id \type{str} The ID of the container to remove.
#
# \return True if the container was successfully removed, False if not.
@pyqtSlot(str, result = bool)
def removeContainer(self, container_id):
containers = self._registry.findContainers(None, id = container_id)
if not containers:
return False
self._registry.removeContainer(containers[0])
return True
## Merge a container with another.
#
# This will try to merge one container into the other, by going through the container
# and setting the right properties on the other container.
#
# \param merge_into_id \type{str} The ID of the container to merge into.
# \param merge_id \type{str} The ID of the container to merge.
#
# \return True if successfully merged, False if not.
@pyqtSlot(str, result = bool)
def mergeContainers(self, merge_into_id, merge_id):
containers = self._registry.findContainers(None, id = container_id)
if not containers:
return False
merge_into = containers[0]
containers = self._registry.findContainers(None, id = container_id)
if not containers:
return False
merge = containers[0]
if type(merge) != type(merge_into):
return False
for key in merge.getAllKeys():
merge_into.setProperty(key, "value", merge.getProperty(key, "value"))
return True
## Clear the contents of a container.
#
# \param container_id \type{str} The ID of the container to clear.
#
# \return True if successful, False if not.
@pyqtSlot(str, result = bool)
def clearContainer(self, container_id):
containers = self._registry.findContainers(None, id = container_id)
if not containers:
return False
containers[0].clear()
return True
## Set a metadata entry of the specified container.
#
# This will set the specified entry of the container's metadata to the specified
# value. Note that entries containing dictionaries can have their entries changed
# by using "/" as a separator. For example, to change an entry "foo" in a
# dictionary entry "bar", you can specify "bar/foo" as entry name.
#
# \param container_id \type{str} The ID of the container to change.
# \param entry_name \type{str} The name of the metadata entry to change.
# \param entry_value The new value of the entry.
@pyqtSlot(str, str, str)
def setContainerMetaDataEntry(self, container_id, entry_name, entry_value):
containers = UM.Settings.ContainerRegistry.getInstance().findContainers(None, id = container_id)
if not containers:
return
container = containers[0]
entries = entry_name.split("/")
entry_name = entries.pop()
if entries:
root_name = entries.pop(0)
root = container.getMetaDataEntry(root_name)
item = root
for entry in entries:
item = item.get(entries.pop(0), { })
item[entry_name] = entry_value
entry_name = root_name
entry_value = root
containers[0].setMetaDataEntry(entry_name, entry_value)
# Factory function, used by QML
@staticmethod
def createContainerManager(engine, js_engine):
return ContainerManager()