From: Youness Alaoui <kakaroto@kakaroto.homelinux.net>
Date: Fri, 22 May 2015 17:06:21 +0000 (-0400)
Subject: Add Pause support to serial communication which adds a pause button to UI
X-Git-Tag: lulzbot-15.02.1-1.01~21
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=b55b9f6730e2359eea0035d11408bb3a9fd746b8;p=cura.git

Add Pause support to serial communication which adds a pause button to UI
---

diff --git a/Cura/serialCommunication.py b/Cura/serialCommunication.py
index efc6e72d..4add5f23 100644
--- a/Cura/serialCommunication.py
+++ b/Cura/serialCommunication.py
@@ -68,6 +68,10 @@ class serialComm(object):
 				self._comm.sendCommand(line[1])
 			elif line[0] == 'START':
 				self._comm.printGCode(self._gcodeList)
+			elif line[0] == 'PAUSE':
+				self._comm.setPause(True)
+			elif line[0] == 'RESUME':
+				self._comm.setPause(False)
 			else:
 				sys.stderr.write(str(line))
 
diff --git a/Cura/util/printerConnection/serialConnection.py b/Cura/util/printerConnection/serialConnection.py
index 2495f77a..6f5d1a8d 100644
--- a/Cura/util/printerConnection/serialConnection.py
+++ b/Cura/util/printerConnection/serialConnection.py
@@ -97,13 +97,26 @@ class serialConnection(printerConnectionBase.printerConnectionBase):
 
 	#Abort the previously loaded print file
 	def cancelPrint(self):
-		if not self.isPrinting()or self._process is None:
+		if not self.isPrinting() or self._process is None:
 			return
 		self._process.stdin.write('STOP\n')
 		self._printProgress = 0
 
 	def isPrinting(self):
-		return self._commState == machineCom.MachineCom.STATE_PRINTING
+		return self._commState == machineCom.MachineCom.STATE_PRINTING or self.isPaused()
+
+	#Returns true if we have the ability to pause the file printing.
+	def hasPause(self):
+		return True
+
+	def isPaused(self):
+		return self._commState == machineCom.MachineCom.STATE_PAUSED
+
+	#Pause or unpause the printing depending on the value, if supported.
+	def pause(self, value):
+		if not self.isPrinting() or self._process is None:
+			return
+		self._process.stdin.write('PAUSE\n' if value else "RESUME\n")
 
 	#Amount of progression of the current print file. 0.0 to 1.0
 	def getPrintProgress(self):