CURA-4870 Add printer type selector that show the unique name list of

all the types of printers in a group.

cura/PrinterOutput/ExtruderOutputModel.py

@@ -0,0 +1,70 @@
+# Copyright (c) 2017 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from PyQt5.QtCore import pyqtSignal, pyqtProperty, QObject, QVariant, pyqtSlot
+from UM.Logger import Logger
+
+from typing import Optional
+
+MYPY = False
+if MYPY:
+    from cura.PrinterOutput.PrinterOutputModel import PrinterOutputModel
+    from cura.PrinterOutput.MaterialOutputModel import MaterialOutputModel
+
+
+class ExtruderOutputModel(QObject):
+    hotendIDChanged = pyqtSignal()
+    targetHotendTemperatureChanged = pyqtSignal()
+    hotendTemperatureChanged = pyqtSignal()
+    activeMaterialChanged = pyqtSignal()
+
+    def __init__(self, printer: "PrinterOutputModel", parent=None):
+        super().__init__(parent)
+        self._printer = printer
+        self._target_hotend_temperature = 0
+        self._hotend_temperature = 0
+        self._hotend_id = ""
+        self._active_material = None  # type: Optional[MaterialOutputModel]
+
+    @pyqtProperty(QObject, notify = activeMaterialChanged)
+    def activeMaterial(self) -> "MaterialOutputModel":
+        return self._active_material
+
+    def updateActiveMaterial(self, material: Optional["MaterialOutputModel"]):
+        if self._active_material != material:
+            self._active_material = material
+            self.activeMaterialChanged.emit()
+
+    ##  Update the hotend temperature. This only changes it locally.
+    def updateHotendTemperature(self, temperature: float):
+        if self._hotend_temperature != temperature:
+            self._hotend_temperature = temperature
+            self.hotendTemperatureChanged.emit()
+
+    def updateTargetHotendTemperature(self, temperature: float):
+        if self._target_hotend_temperature != temperature:
+            self._target_hotend_temperature = temperature
+            self.targetHotendTemperatureChanged.emit()
+
+    ##  Set the target hotend temperature. This ensures that it's actually sent to the remote.
+    @pyqtSlot(float)
+    def setTargetHotendTemperature(self, temperature: float):
+        self._printer.getController().setTargetHotendTemperature(self._printer, self, temperature)
+        self.updateTargetHotendTemperature(temperature)
+
+    @pyqtProperty(float, notify = targetHotendTemperatureChanged)
+    def targetHotendTemperature(self) -> float:
+        return self._target_hotend_temperature
+
+    @pyqtProperty(float, notify=hotendTemperatureChanged)
+    def hotendTemperature(self) -> float:
+        return self._hotend_temperature
+
+    @pyqtProperty(str, notify = hotendIDChanged)
+    def hotendID(self) -> str:
+        return self._hotend_id
+
+    def updateHotendID(self, id: str):
+        if self._hotend_id != id:
+            self._hotend_id = id
+            self.hotendIDChanged.emit()