findrox.py

   1 # Most of the common code needed by ROX applications is in ROX-Lib.
   2 # Except this code, which is needed to find ROX-Lib in the first place!
   3
   4 # Just make sure you import findrox before importing anything inside
   5 # ROX-Lib...
   6
   7 import os, sys
   8 from os.path import exists
   9 import string
  10
  11 try:
  12         path = os.environ['LIBDIRPATH']
  13         paths = string.split(path, ':')
  14 except KeyError:
  15         paths = [ os.environ['HOME'] + '/lib', '/usr/local/lib', '/usr/lib' ]
  16
  17 paths = map(lambda p: p +'/ROX-Lib', paths)
  18 found = 0
  19 for p in paths:
  20         if exists(p):
  21                 found = 1
  22                 sys.path.append(p + '/python')
  23                 break
  24 if not found:
  25         err = "This program needs ROX-Lib to run.\n" + \
  26                 "I tried all of these places:\n\n" + \
  27                 string.join(paths, '\n') + '\n\n' + \
  28                 "ROX-Lib is available from:\nhttp://rox.sourceforge.net"
  29         try:
  30                 sys.stderr.write('*** ' + err + '\n')
  31         except:
  32                 pass
  33         import gtk
  34         try:
  35                 win = gtk.GtkDialog()
  36                 message = gtk.GtkLabel(err)
  37         except AttributeError:
  38                 win = gtk.MessageDialog(None, 0,
  39                                         gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, err)
  40                 win.set_position(gtk.WIN_POS_CENTER)
  41                 win.run()
  42                 sys.exit(1)
  43         win.set_title('Missing ROX-Lib')
  44         win.set_position(gtk.WIN_POS_CENTER)
  45         message.set_padding(20, 20)
  46         win.vbox.pack_start(message)
  47
  48         ok = gtk.GtkButton("OK")
  49         ok.set_flags(gtk.CAN_DEFAULT)
  50         win.action_area.pack_start(ok)
  51         ok.connect('clicked', mainquit)
  52         ok.grab_default()
  53
  54         win.connect('destroy', mainquit)
  55         win.show_all()
  56         mainloop()
  57         sys.exit(1)