Cura/serialCommunication.py

   1 __copyright__ = "Copyright (C) 2013 David Braam - Released under terms of the AGPLv3 License"
   2
   3 # Serial communication with the printer for printing is done from a separate process,
   4 # this to ensure that the PIL does not block the serial printing.
   5
   6 import sys
   7 import time
   8 import os
   9 import json
  10
  11 from Cura.util import machineCom
  12
  13 class serialComm(object):
  14         def __init__(self, portName):
  15                 self._comm = None
  16                 self._gcodeList = []
  17
  18                 self._comm = machineCom.MachineCom(portName, callbackObject=self)
  19
  20         def mcLog(self, message):
  21                 sys.stdout.write('log:%s\n' % (message))
  22
  23         def mcTempUpdate(self, temp, bedTemp, targetTemp, bedTargetTemp):
  24                 sys.stdout.write('temp:%s\n' % json.dumps(temp))
  25
  26         def mcStateChange(self, state):
  27                 if self._comm is None:
  28                         return
  29                 sys.stdout.write('state:%d:%s\n' % (state, self._comm.getStateString()))
  30
  31         def mcMessage(self, message):
  32                 sys.stdout.write('message:%s\n' % (message))
  33
  34         def mcProgress(self, lineNr):
  35                 sys.stdout.write('progress:%d\n' % (lineNr))
  36
  37         def mcZChange(self, newZ):
  38                 sys.stdout.write('changeZ:%d\n' % (newZ))
  39
  40         def monitorStdin(self):
  41
  42                 while not self._comm.isClosed():
  43                         line = sys.stdin.readline().strip()
  44                         line = line.split(':', 1)
  45                         if line[0] == 'STOP':
  46                                 self._comm.cancelPrint()
  47                                 self._gcodeList = ['M110']
  48                         elif line[0] == 'G':
  49                                 self._gcodeList.append(line[1])
  50                         elif line[0] == 'START':
  51                                 self._comm.printGCode(self._gcodeList)
  52                         else:
  53                                 sys.stderr.write(str(line))
  54
  55 def main():
  56         if len(sys.argv) != 2:
  57                 return
  58         sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0)
  59         portName = sys.argv[1]
  60         comm = serialComm(portName)
  61         comm.monitorStdin()
  62
  63 if __name__ == '__main__':
  64         main()