code.delx.au - bg-scripts/blob - lib/x11_helpers.py

   1 #! python
   2 # Copyright 2007 Greg Darke <starstuff@optusnet.com.au>
   3 # Licensed for distribution under the GPL version 2, check COPYING for details
   4 # Some little helper utils
   5
   6 import subprocess, commands, itertools
   7
   8 __all__ = ('getResolutions', )
   9
  10 def _seperateGroups(lines):
  11         ret = []
  12         current_section = []
  13         for line in lines:
  14                 if line.strip() == '':
  15                         ret.append(current_section)
  16                         current_section = []
  17                         continue
  18                 current_section.append(line)
  19         if current_section:
  20                 ret.append(current_section)
  21         return ret
  22
  23 def getResolutions():
  24         xdpyinfo_status, xdpyinfo_output = commands.getstatusoutput('xdpyinfo')
  25         lines = xdpyinfo_output.splitlines()
  26         groups = _seperateGroups(xdpyinfo_output.splitlines())
  27
  28         screens = []
  29         for screen_data in itertools.islice(groups, 1, None, None):
  30                 _, screen_number = screen_data[0].split()
  31                 # remove the leading and trailing characters
  32                 screen_number = screen_number[1:-1]
  33
  34                 _, screen_resolution_str, _, _, _ = screen_data[1].strip().split()
  35                 screen_resolution = screen_resolution_str.split('x')
  36
  37                 screens.append( (screen_number, tuple(int(val) for val in screen_resolution)))
  38         return dict(screens)