Correctly interpret Smoothieware temperature data for multiple extruders

Fixes #633

CHANGELOG.md

@@ -46,6 +46,8 @@
 
 * [#435](https://github.com/foosel/OctoPrint/issues/435) - Always interpret negative duration (e.g. for print time left)
   as 0
+* [#633](https://github.com/foosel/OctoPrint/issues/633) - Correctly interpret temperature lines from multi extruder 
+  setups under Smoothieware
 * Various fixes of bugs in newly introduced features and improvements:
   * [#625](https://github.com/foosel/OctoPrint/pull/625) - Newly added GCODE files were not being added to the analysis
     queue

src/octoprint/settings.py

@@ -172,6 +172,7 @@ default_settings = {
 			"includeCurrentToolInTemps": True,
 			"hasBed": True,
 			"repetierStyleTargetTemperature": False,
+			"smoothieTemperatureReporting": False,
 			"extendedSdFileList": False
 		}
 	}

src/octoprint/util/comm.py

@@ -577,8 +577,8 @@ class MachineCom(object):
 		maxToolNum, parsedTemps = self._parseTemperatures(line)
 
 		# extruder temperatures
-		if not "T0" in parsedTemps.keys() and "T" in parsedTemps.keys():
-			# only single reporting, "T" is our one and only extruder temperature
+		if not "T0" in parsedTemps.keys() and not "T1" in parsedTemps.keys() and "T" in parsedTemps.keys():
+			# no T1 so only single reporting, "T" is our one and only extruder temperature
 			toolNum, actual, target = parsedTemps["T"]
 
 			if target is not None:
@@ -588,7 +588,13 @@ class MachineCom(object):
 				self._temp[0] = (actual, oldTarget)
 			else:
 				self._temp[0] = (actual, None)
-		elif "T0" in parsedTemps.keys():
+		elif not "T0" in parsedTemps.keys() and "T" in parsedTemps.keys():
+			# Smoothieware sends multi extruder temperature data this way: "T:<first extruder> T1:<second extruder> ..." and therefore needs some special treatment...
+			_, actual, target = parsedTemps["T"]
+			del parsedTemps["T"]
+			parsedTemps["T0"] = (0, actual, target)
+
+		if "T0" in parsedTemps.keys():
 			for n in range(maxToolNum + 1):
 				tool = "T%d" % n
 				if not tool in parsedTemps.keys():

src/octoprint/util/virtual.py

@@ -213,6 +213,9 @@ class VirtualPrinter():
 				allTemps.append((i, self.temp[i], self.targetTemp[i]))
 			allTempsString = " ".join(map(lambda x: "T%d:%.2f /%.2f" % x if includeTarget else "T%d:%.2f" % (x[0], x[1]), allTemps))
 
+			if settings().getBoolean(["devel", "virtualPrinter", "smoothieTemperatureReporting"]):
+				allTempsString = allTempsString.replace("T0:", "T:")
+
 			if settings().getBoolean(["devel", "virtualPrinter", "hasBed"]):
 				if includeTarget:
 					allTempsString = "B:%.2f /%.2f %s" % (self.bedTemp, self.bedTargetTemp, allTempsString)