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plugins/UM3NetworkPrinting/src/LegacyUM3PrinterOutputController.py

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+# Copyright (c) 2017 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
+from UM.Version import Version
+
+MYPY = False
+if MYPY:
+    from cura.PrinterOutput.PrintJobOutputModel import PrintJobOutputModel
+    from cura.PrinterOutput.PrinterOutputModel import PrinterOutputModel
+
+
+class LegacyUM3PrinterOutputController(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.can_control_manually = False
+        self.can_send_raw_gcode = False
+
+        # Are we still waiting for a response about preheat?
+        # We need this so we can already update buttons, so it feels more snappy.
+        self._preheat_request_in_progress = False
+
+    def isPreheatRequestInProgress(self):
+        return self._preheat_request_in_progress
+
+    def setJobState(self, job: "PrintJobOutputModel", state: str):
+        data = "{\"target\": \"%s\"}" % state
+        self._output_device.put("print_job/state", data, on_finished=None)
+
+    def setTargetBedTemperature(self, printer: "PrinterOutputModel", temperature: int):
+        data = str(temperature)
+        self._output_device.put("printer/bed/temperature/target", data, on_finished=self._onPutBedTemperatureCompleted)
+
+    def _onPutBedTemperatureCompleted(self, reply):
+        if Version(self._preheat_printer.firmwareVersion) < Version("3.5.92"):
+            # If it was handling a preheat, it isn't anymore.
+            self._preheat_request_in_progress = False
+
+    def _onPutPreheatBedCompleted(self, reply):
+        self._preheat_request_in_progress = False
+
+    def moveHead(self, printer: "PrinterOutputModel", x, y, z, speed):
+        head_pos = printer._head_position
+        new_x = head_pos.x + x
+        new_y = head_pos.y + y
+        new_z = head_pos.z + z
+        data = "{\n\"x\":%s,\n\"y\":%s,\n\"z\":%s\n}" %(new_x, new_y, new_z)
+        self._output_device.put("printer/heads/0/position", data, on_finished=None)
+
+    def homeBed(self, printer):
+        self._output_device.put("printer/heads/0/position/z", "0", on_finished=None)
+
+    def _onPreheatBedTimerFinished(self):
+        self.setTargetBedTemperature(self._preheat_printer, 0)
+        self._preheat_printer.updateIsPreheating(False)
+        self._preheat_request_in_progress = True
+
+    def cancelPreheatBed(self, printer: "PrinterOutputModel"):
+        self.preheatBed(printer, temperature=0, duration=0)
+        self._preheat_bed_timer.stop()
+        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.
+
+        if duration > 0:
+            data = """{"temperature": "%i", "timeout": "%i"}""" % (temperature, duration)
+        else:
+            data = """{"temperature": "%i"}""" % temperature
+
+        # Real bed pre-heating support is implemented from 3.5.92 and up.
+
+        if Version(printer.firmwareVersion) < Version("3.5.92"):
+            # No firmware-side duration support then, so just set target bed temp and set a timer.
+            self.setTargetBedTemperature(printer, temperature=temperature)
+            self._preheat_bed_timer.setInterval(duration * 1000)
+            self._preheat_bed_timer.start()
+            self._preheat_printer = printer
+            printer.updateIsPreheating(True)
+            return
+
+        self._output_device.put("printer/bed/pre_heat", data, on_finished = self._onPutPreheatBedCompleted)
+        printer.updateIsPreheating(True)
+        self._preheat_request_in_progress = True
+
+