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1 #!/usr/bin/env python
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2 # NOTE: this package is Linux specific at the moment
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3
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4 import subprocess
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5 import os.path
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6 import sys
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7 if sys.platform.lower().startswith('win'):
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8 import win32print
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9
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10 class zebra(object):
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11 def __init__(self, queue=None):
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1
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12 """queue - name of the printer queue"""
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0
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13 self.queue = queue
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14
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15 def _output_unix(self, commands):
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16 if self.queue == 'zebra_python_unittest':
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17 p = subprocess.Popen(['cat','-'], stdin=subprocess.PIPE)
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18 else:
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19 p = subprocess.Popen(['lpr','-P%s'%self.queue], stdin=subprocess.PIPE)
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20 if type(commands) == bytes:
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21 p.communicate(commands)
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22 else:
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23 p.communicate(str(commands).encode())
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24 p.stdin.close()
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25
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26 def _output_win(self, commands):
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27 raise Exception('Not yet implemented')
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28
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29 def output(self, commands):
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30 assert self.queue is not None
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31 if sys.platform.startswith('win'):
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32 self._output_win(commands)
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33 else:
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34 self._output_unix(commmands)
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35
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36 def _getqueues_unix(self):
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37 queues = []
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38 output = subprocess.check_output(['lpstat','-p'], universal_newlines=True)
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39 for line in output.split('\n'):
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40 if line.startswith('printer'):
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41 queues.append(line.split(' ')[1])
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42 return queues
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43
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44 def _getqueues_win(self):
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45 raise Exception('Not yet implemented')
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46
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47 def getqueues(self):
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48 if sys.platform.startswith('win'):
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49 return self._getqueues_win()
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50 else:
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51 return self._getqueues_unix()
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52
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1
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53 def setqueue(self, queue):
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54 self.queue = queue
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55
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56 def setup(self, direct_transfer=None, label_height=None, label_width=None):
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57 commands = '\n'
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58 if direct_transfer:
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59 commands += ('OD\n')
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60 if label_height:
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61 commands += ('Q%s,%s\n'%(label_height[0],label_height[1]))
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62 if label_width:
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63 commands += ('q%s\n'%label_width)
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64 self.output(commands)
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65
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66 def store_graphic(self, name, filename):
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67 assert filename.endswith('.pcx')
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68 commands = '\nGK"%s"\n'%name
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69 commands += 'GK"%s"\n'%name
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70 size = os.path.getsize(filename)
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71 commands += 'GM"%s"%s\n'%(name,size)
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72 self.output(commands)
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73 self.output(open(filename,'rb').read())
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74
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75 if __name__ == '__main__':
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76 z = zebra()
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77 print 'Printer queues found:',z.getqueues()
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78 z.setqueue('zebra_python_unittest')
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1
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79 z.setup(direct_transfer=True, label_height=(406,32), label_width=609) # 3" x 2" direct transfer label
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80 z.store_graphic('logo','logo.pcx')
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0
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81 label = """
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82 N
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83 GG419,40,"logo"
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84 A40,80,0,4,1,1,N,"Tangerine Duck 4.4%"
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85 A40,198,0,3,1,1,N,"Duty paid on 39.9l"
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1
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86 A40,240,0,3,1,1,N,"Gyle: 127 Best Before: 16/09/2011"
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87 A40,320,0,4,1,1,N,"Pump & Truncheon"
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88 P1
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89 """
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90 z.output(label)
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91
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