Mercurial > hg > zebra
annotate zebra.py @ 2:ad9d9bf61243
Change direct transfer to direct thermal
| author | Ben Croston <ben@fuzzyduckbrewery.co.uk> |
|---|---|
| date | Fri, 12 Aug 2011 21:52:11 +0100 |
| parents | 21c3229ed401 |
| children | 0687a6666873 |
| rev | line source |
|---|---|
| 0 | 1 #!/usr/bin/env python |
| 2 # NOTE: this package is Linux specific at the moment | |
| 3 | |
| 4 import subprocess | |
| 5 import os.path | |
| 6 import sys | |
| 7 if sys.platform.lower().startswith('win'): | |
| 8 import win32print | |
| 9 | |
| 10 class zebra(object): | |
| 11 def __init__(self, queue=None): | |
| 1 | 12 """queue - name of the printer queue""" |
| 0 | 13 self.queue = queue |
| 14 | |
| 15 def _output_unix(self, commands): | |
| 16 if self.queue == 'zebra_python_unittest': | |
| 17 p = subprocess.Popen(['cat','-'], stdin=subprocess.PIPE) | |
| 18 else: | |
| 19 p = subprocess.Popen(['lpr','-P%s'%self.queue], stdin=subprocess.PIPE) | |
| 20 if type(commands) == bytes: | |
| 21 p.communicate(commands) | |
| 22 else: | |
| 23 p.communicate(str(commands).encode()) | |
| 24 p.stdin.close() | |
| 25 | |
| 26 def _output_win(self, commands): | |
| 27 raise Exception('Not yet implemented') | |
| 28 | |
| 29 def output(self, commands): | |
| 30 assert self.queue is not None | |
| 31 if sys.platform.startswith('win'): | |
| 32 self._output_win(commands) | |
| 33 else: | |
| 34 self._output_unix(commmands) | |
| 35 | |
| 36 def _getqueues_unix(self): | |
| 37 queues = [] | |
| 38 output = subprocess.check_output(['lpstat','-p'], universal_newlines=True) | |
| 39 for line in output.split('\n'): | |
| 40 if line.startswith('printer'): | |
| 41 queues.append(line.split(' ')[1]) | |
| 42 return queues | |
| 43 | |
| 44 def _getqueues_win(self): | |
| 45 raise Exception('Not yet implemented') | |
| 46 | |
| 47 def getqueues(self): | |
| 48 if sys.platform.startswith('win'): | |
| 49 return self._getqueues_win() | |
| 50 else: | |
| 51 return self._getqueues_unix() | |
| 52 | |
| 1 | 53 def setqueue(self, queue): |
| 0 | 54 self.queue = queue |
| 55 | |
|
2
ad9d9bf61243
Change direct transfer to direct thermal
Ben Croston <ben@fuzzyduckbrewery.co.uk>
parents:
1
diff
changeset
|
56 def setup(self, direct_thermal=None, label_height=None, label_width=None): |
| 0 | 57 commands = '\n' |
|
2
ad9d9bf61243
Change direct transfer to direct thermal
Ben Croston <ben@fuzzyduckbrewery.co.uk>
parents:
1
diff
changeset
|
58 if direct_thermal: |
| 0 | 59 commands += ('OD\n') |
| 60 if label_height: | |
| 61 commands += ('Q%s,%s\n'%(label_height[0],label_height[1])) | |
| 62 if label_width: | |
| 63 commands += ('q%s\n'%label_width) | |
| 64 self.output(commands) | |
| 65 | |
| 66 def store_graphic(self, name, filename): | |
| 67 assert filename.endswith('.pcx') | |
| 68 commands = '\nGK"%s"\n'%name | |
| 69 commands += 'GK"%s"\n'%name | |
| 70 size = os.path.getsize(filename) | |
| 71 commands += 'GM"%s"%s\n'%(name,size) | |
| 72 self.output(commands) | |
| 73 self.output(open(filename,'rb').read()) | |
| 74 | |
| 75 if __name__ == '__main__': | |
| 76 z = zebra() | |
| 77 print 'Printer queues found:',z.getqueues() | |
| 78 z.setqueue('zebra_python_unittest') | |
|
2
ad9d9bf61243
Change direct transfer to direct thermal
Ben Croston <ben@fuzzyduckbrewery.co.uk>
parents:
1
diff
changeset
|
79 z.setup(direct_thermal=True, label_height=(406,32), label_width=609) # 3" x 2" direct thermal label |
| 1 | 80 z.store_graphic('logo','logo.pcx') |
| 0 | 81 label = """ |
| 82 N | |
| 83 GG419,40,"logo" | |
| 84 A40,80,0,4,1,1,N,"Tangerine Duck 4.4%" | |
| 85 A40,198,0,3,1,1,N,"Duty paid on 39.9l" | |
| 1 | 86 A40,240,0,3,1,1,N,"Gyle: 127 Best Before: 16/09/2011" |
| 0 | 87 A40,320,0,4,1,1,N,"Pump & Truncheon" |
| 88 P1 | |
| 89 """ | |
| 90 z.output(label) | |
| 91 |