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- # Copyright (c) 2016 Ultimaker B.V.
- # Cura is released under the terms of the LGPLv3 or higher.
- from PyQt5.QtCore import QObject, pyqtSlot, pyqtProperty, pyqtSignal, QUrl
- from PyQt5.QtQml import QQmlComponent, QQmlContext
- from UM.PluginObject import PluginObject
- from UM.PluginRegistry import PluginRegistry
- from UM.Logger import Logger
- from UM.Application import Application
- import os
- ## Machine actions are actions that are added to a specific machine type. Examples of such actions are
- # updating the firmware, connecting with remote devices or doing bed leveling. A machine action can also have a
- # qml, which should contain a "Cura.MachineAction" item. When activated, the item will be displayed in a dialog
- # and this object will be added as "manager" (so all pyqtSlot() functions can be called by calling manager.func())
- class MachineAction(QObject, PluginObject):
- ## Create a new Machine action.
- # \param key unique key of the machine action
- # \param label Human readable label used to identify the machine action.
- def __init__(self, key, label = ""):
- super().__init__()
- self._key = key
- self._label = label
- self._qml_url = ""
- self._component = None
- self._context = None
- self._view = None
- self._finished = False
- labelChanged = pyqtSignal()
- onFinished = pyqtSignal()
- def getKey(self):
- return self._key
- @pyqtProperty(str, notify = labelChanged)
- def label(self):
- return self._label
- def setLabel(self, label):
- if self._label != label:
- self._label = label
- self.labelChanged.emit()
- ## Reset the action to it's default state.
- # This should not be re-implemented by child classes, instead re-implement _reset.
- # /sa _reset
- @pyqtSlot()
- def reset(self):
- self._component = None
- self._finished = False
- self._reset()
- ## Protected implementation of reset.
- # /sa reset()
- def _reset(self):
- pass
- @pyqtSlot()
- def setFinished(self):
- self._finished = True
- self._reset()
- self.onFinished.emit()
- @pyqtProperty(bool, notify = onFinished)
- def finished(self):
- return self._finished
- ## Protected helper to create a view object based on provided QML.
- def _createViewFromQML(self):
- path = QUrl.fromLocalFile(os.path.join(PluginRegistry.getInstance().getPluginPath(self.getPluginId()), self._qml_url))
- self._component = QQmlComponent(Application.getInstance()._engine, path)
- self._context = QQmlContext(Application.getInstance()._engine.rootContext())
- self._context.setContextProperty("manager", self)
- self._view = self._component.create(self._context)
- if self._view is None:
- Logger.log("c", "QQmlComponent status %s", self._component.status())
- Logger.log("c", "QQmlComponent error string %s", self._component.errorString())
- @pyqtProperty(QObject, constant = True)
- def displayItem(self):
- if not self._component:
- self._createViewFromQML()
- return self._view
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