Merge pull request #3144 from fieldOfView/feature_preheat_extruder

Feature preheat extruder

cura/PrinterOutput/ExtruderOutputModel.py

@@ -18,6 +18,7 @@ class ExtruderOutputModel(QObject):
     hotendTemperatureChanged = pyqtSignal()
     activeMaterialChanged = pyqtSignal()
     extruderConfigurationChanged = pyqtSignal()
+    isPreheatingChanged = pyqtSignal()
 
     def __init__(self, printer: "PrinterOutputModel", position, parent=None):
         super().__init__(parent)
@@ -30,6 +31,21 @@ class ExtruderOutputModel(QObject):
         self._extruder_configuration = ExtruderConfigurationModel()
         self._extruder_configuration.position = self._position
 
+        self._is_preheating = False
+
+    def getPrinter(self):
+        return self._printer
+
+    def getPosition(self):
+        return self._position
+
+    # Does the printer support pre-heating the bed at all
+    @pyqtProperty(bool, constant=True)
+    def canPreHeatHotends(self):
+        if self._printer:
+            return self._printer.canPreHeatHotends
+        return False
+
     @pyqtProperty(QObject, notify = activeMaterialChanged)
     def activeMaterial(self) -> "MaterialOutputModel":
         return self._active_material
@@ -82,3 +98,25 @@ class ExtruderOutputModel(QObject):
         if self._extruder_configuration.isValid():
             return self._extruder_configuration
         return None
+
+    def updateIsPreheating(self, pre_heating):
+        if self._is_preheating != pre_heating:
+            self._is_preheating = pre_heating
+            self.isPreheatingChanged.emit()
+
+    @pyqtProperty(bool, notify=isPreheatingChanged)
+    def isPreheating(self):
+        return self._is_preheating
+
+    ##  Pre-heats the extruder before printer.
+    #
+    #   \param temperature The temperature to heat the extruder to, in degrees
+    #   Celsius.
+    #   \param duration How long the bed should stay warm, in seconds.
+    @pyqtSlot(float, float)
+    def preheatHotend(self, temperature, duration):
+        self._printer._controller.preheatHotend(self, temperature, duration)
+
+    @pyqtSlot()
+    def cancelPreheatHotend(self):
+        self._printer._controller.cancelPreheatHotend(self)

cura/PrinterOutput/GenericOutputController.py

@@ -0,0 +1,151 @@
+# Copyright (c) 2018 Ultimaker B.V.
+# Cura is released under the terms of the LGPLv3 or higher.
+
+from cura.PrinterOutput.PrinterOutputController import PrinterOutputController
+from PyQt5.QtCore import QTimer
+
+MYPY = False
+if MYPY:
+    from cura.PrinterOutput.PrintJobOutputModel import PrintJobOutputModel
+    from cura.PrinterOutput.PrinterOutputModel import PrinterOutputModel
+
+
+class GenericOutputController(PrinterOutputController):
+    def __init__(self, output_device):
+        super().__init__(output_device)
+
+        self._preheat_bed_timer = QTimer()
+        self._preheat_bed_timer.setSingleShot(True)
+        self._preheat_bed_timer.timeout.connect(self._onPreheatBedTimerFinished)
+        self._preheat_printer = None
+
+        self._preheat_hotends_timer = QTimer()
+        self._preheat_hotends_timer.setSingleShot(True)
+        self._preheat_hotends_timer.timeout.connect(self._onPreheatHotendsTimerFinished)
+        self._preheat_hotends = set()
+
+        self._output_device.printersChanged.connect(self._onPrintersChanged)
+        self._active_printer = None
+
+    def _onPrintersChanged(self):
+        if self._active_printer:
+            self._active_printer.stateChanged.disconnect(self._onPrinterStateChanged)
+            self._active_printer.targetBedTemperatureChanged.disconnect(self._onTargetBedTemperatureChanged)
+            for extruder in self._active_printer.extruders:
+                extruder.targetHotendTemperatureChanged.disconnect(self._onTargetHotendTemperatureChanged)
+
+        self._active_printer = self._output_device.activePrinter
+        if self._active_printer:
+            self._active_printer.stateChanged.connect(self._onPrinterStateChanged)
+            self._active_printer.targetBedTemperatureChanged.connect(self._onTargetBedTemperatureChanged)
+            for extruder in self._active_printer.extruders:
+                extruder.targetHotendTemperatureChanged.connect(self._onTargetHotendTemperatureChanged)
+
+    def _onPrinterStateChanged(self):
+        if self._active_printer.state != "idle":
+            if self._preheat_bed_timer.isActive():
+                self._preheat_bed_timer.stop()
+                self._preheat_printer.updateIsPreheating(False)
+            if self._preheat_hotends_timer.isActive():
+                self._preheat_hotends_timer.stop()
+                for extruder in self._preheat_hotends:
+                    extruder.updateIsPreheating(False)
+                self._preheat_hotends = set()
+
+    def moveHead(self, printer: "PrinterOutputModel", x, y, z, speed):
+        self._output_device.sendCommand("G91")
+        self._output_device.sendCommand("G0 X%s Y%s Z%s F%s" % (x, y, z, speed))
+        self._output_device.sendCommand("G90")
+
+    def homeHead(self, printer):
+        self._output_device.sendCommand("G28 X")
+        self._output_device.sendCommand("G28 Y")
+
+    def homeBed(self, printer):
+        self._output_device.sendCommand("G28 Z")
+
+    def setJobState(self, job: "PrintJobOutputModel", state: str):
+        if state == "pause":
+            self._output_device.pausePrint()
+            job.updateState("paused")
+        elif state == "print":
+            self._output_device.resumePrint()
+            job.updateState("printing")
+        elif state == "abort":
+            self._output_device.cancelPrint()
+            pass
+
+    def setTargetBedTemperature(self, printer: "PrinterOutputModel", temperature: int):
+        self._output_device.sendCommand("M140 S%s" % temperature)
+
+    def _onTargetBedTemperatureChanged(self):
+        if self._preheat_bed_timer.isActive() and self._preheat_printer.targetBedTemperature == 0:
+            self._preheat_bed_timer.stop()
+            self._preheat_printer.updateIsPreheating(False)
+
+    def preheatBed(self, printer: "PrinterOutputModel", temperature, duration):
+        try:
+            temperature = round(temperature)  # The API doesn't allow floating point.
+            duration = round(duration)
+        except ValueError:
+            return  # Got invalid values, can't pre-heat.
+
+        self.setTargetBedTemperature(printer, temperature=temperature)
+        self._preheat_bed_timer.setInterval(duration * 1000)
+        self._preheat_bed_timer.start()
+        self._preheat_printer = printer
+        printer.updateIsPreheating(True)
+
+    def cancelPreheatBed(self, printer: "PrinterOutputModel"):
+        self.setTargetBedTemperature(printer, temperature=0)
+        self._preheat_bed_timer.stop()
+        printer.updateIsPreheating(False)
+
+    def _onPreheatBedTimerFinished(self):
+        self.setTargetBedTemperature(self._preheat_printer, 0)
+        self._preheat_printer.updateIsPreheating(False)
+
+    def setTargetHotendTemperature(self, printer: "PrinterOutputModel", position: int, temperature: int):
+        self._output_device.sendCommand("M104 S%s T%s" % (temperature, position))
+
+    def _onTargetHotendTemperatureChanged(self):
+        if not self._preheat_hotends_timer.isActive():
+            return
+
+        for extruder in self._active_printer.extruders:
+            if extruder in self._preheat_hotends and extruder.targetHotendTemperature == 0:
+                extruder.updateIsPreheating(False)
+                self._preheat_hotends.remove(extruder)
+        if not self._preheat_hotends:
+            self._preheat_hotends_timer.stop()
+
+    def preheatHotend(self, extruder: "ExtruderOutputModel", temperature, duration):
+        position = extruder.getPosition()
+        number_of_extruders = len(extruder.getPrinter().extruders)
+        if position >= number_of_extruders:
+            return  # Got invalid extruder nr, can't pre-heat.
+
+        try:
+            temperature = round(temperature)  # The API doesn't allow floating point.
+            duration = round(duration)
+        except ValueError:
+            return  # Got invalid values, can't pre-heat.
+
+        self.setTargetHotendTemperature(extruder.getPrinter(), position, temperature=temperature)
+        self._preheat_hotends_timer.setInterval(duration * 1000)
+        self._preheat_hotends_timer.start()
+        self._preheat_hotends.add(extruder)
+        extruder.updateIsPreheating(True)
+
+    def cancelPreheatHotend(self, extruder: "ExtruderOutputModel"):
+        self.setTargetHotendTemperature(extruder.getPrinter(), extruder.getPosition(), temperature=0)
+        if extruder in self._preheat_hotends:
+            extruder.updateIsPreheating(False)
+            self._preheat_hotends.remove(extruder)
+        if not self._preheat_hotends and self._preheat_hotends_timer.isActive():
+            self._preheat_hotends_timer.stop()
+
+    def _onPreheatHotendsTimerFinished(self):
+        for extruder in self._preheat_hotends:
+            self.setTargetHotendTemperature(extruder.getPrinter(), extruder.getPosition(), 0)
+        self._preheat_hotends = set()

cura/PrinterOutput/PrinterOutputController.py

@@ -15,6 +15,7 @@ class PrinterOutputController:
         self.can_pause = True
         self.can_abort = True
         self.can_pre_heat_bed = True
+        self.can_pre_heat_hotends = True
         self.can_control_manually = True
         self._output_device = output_device
 
@@ -33,6 +34,12 @@ class PrinterOutputController:
     def preheatBed(self, printer: "PrinterOutputModel", temperature, duration):
         Logger.log("w", "Preheat bed not implemented in controller")
 
+    def cancelPreheatHotend(self, extruder: "ExtruderOutputModel"):
+        Logger.log("w", "Cancel preheat hotend not implemented in controller")
+
+    def preheatHotend(self, extruder: "ExtruderOutputModel", temperature, duration):
+        Logger.log("w", "Preheat hotend not implemented in controller")
+
     def setHeadPosition(self, printer: "PrinterOutputModel", x, y, z, speed):
         Logger.log("w", "Set head position not implemented in controller")
 

cura/PrinterOutput/PrinterOutputModel.py

@@ -238,6 +238,13 @@ class PrinterOutputModel(QObject):
             return self._controller.can_pre_heat_bed
         return False
 
+    # Does the printer support pre-heating the bed at all
+    @pyqtProperty(bool, constant=True)
+    def canPreHeatHotends(self):
+        if self._controller:
+            return self._controller.can_pre_heat_hotends
+        return False
+
     # Does the printer support pause at all
     @pyqtProperty(bool, constant=True)
     def canPause(self):