support.py

   1 from os import _exit, fork, execvp, waitpid, dup2
   2
   3 from rox.MultipleChoice import MultipleChoice
   4 from rox.support import *
   5
   6 from gtk import *
   7
   8 # Open a modal dialog box showing a message.
   9 # The user can choose from a selection of buttons at the bottom.
  10 # Returns -1 if the window is destroyed, or the number of the button
  11 # if one is clicked (starting from zero).
  12 #
  13 # If a dialog is already open, returns -1 without waiting AND
  14 # brings the current dialog to the front.
  15 current_dialog = None
  16 def get_choice(message, title, buttons):
  17         global current_dialog
  18
  19         if current_dialog:
  20                 current_dialog.hide()
  21                 current_dialog.show()
  22                 return -1
  23
  24         current_dialog = MultipleChoice(message, buttons)
  25         current_dialog.set_title(title)
  26         choice_return = current_dialog.wait()
  27
  28         print "Return", choice_return
  29
  30         current_dialog = None
  31
  32         return choice_return
  33
  34 def child(*argv):
  35         """Spawn a new process. Connect stderr to stdout."""
  36         child = fork()
  37         if child == 0:
  38                 # We are the child
  39                 try:
  40                         dup2(1, 2)
  41                         execvp(argv[0], argv)
  42                 except:
  43                         pass
  44                 print "Warning: exec('%s') failed!" % argv[0]
  45                 _exit(1)
  46         elif child == -1:
  47                 print "Error: fork() failed!"