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wizarding.py

#A* -------------------------------------------------------------------
#B* This file contains source code for the PyMOL computer program
#C* copyright 1998-2000 by Warren Lyford Delano of DeLano Scientific. 
#D* -------------------------------------------------------------------
#E* It is unlawful to modify or remove this copyright notice.
#F* -------------------------------------------------------------------
#G* Please see the accompanying LICENSE file for further information. 
#H* -------------------------------------------------------------------
#I* Additional authors of this source file include:
#-* 
#-* 
#-*
#Z* -------------------------------------------------------------------

if __name__=='pymol.wizarding':

   import pymol
   import imp
   import sys
   import string
   import cmd
   from cmd import _cmd,lock,unlock,Shortcut,QuietException,_raising, \
        _feedback,fb_module,fb_mask
   import cPickle
   import traceback
   
   def _wizard(name,arg,kwd,replace):
      import wizard
      try:
         full_name = 'pymol.wizard.'+name
         if not sys.modules.has_key(full_name):
            mod_tup = imp.find_module(name,wizard.__path__)
            mod_obj = imp.load_module(full_name,mod_tup[0],
                                      mod_tup[1],mod_tup[2])
         else:
            mod_obj = sys.modules[full_name]
         if mod_obj:
            oname = string.capitalize(name)
            if hasattr(mod_obj,oname):
               wiz = apply(getattr(mod_obj,oname),arg,kwd)
               if wiz:
                  set_wizard(wiz,replace)
                  cmd.do("_ refresh_wizard")
         else:
            print "Error: Sorry, couldn't import the '"+name+"' wizard."         
      except ImportError:
         print "Error: Sorry, couldn't import the '"+name+"' wizard."

   def wizard(name=None,*arg,**kwd):
      '''
DESCRIPTION

   "wizard" launches on of the built-in wizards.  There are special
   Python scripts which work with PyMOL in order to obtain direct user
   interaction and easily peform complicated tasks.

USAGE

   wizard name

PYMOL API

   cmd.wizard(string name)

EXAMPLE

   wizard distance  # launches the distance measurement wizard
   '''
      if name==None:
         cmd.set_wizard()
      else:
         _wizard(name,arg,kwd,0)

   def replace_wizard(name=None,*arg,**kwd):
      if name==None:
         cmd.set_wizard()
      else:
         _wizard(name,arg,kwd,1)

   def set_wizard(wizard=None,replace=0): # INTERNAL
      r = None
      try:
         lock()
         r = _cmd.set_wizard(wizard,replace)
      finally:
         unlock()
      return r

   def set_wizard_stack(stack=[]): # INTERNAL
      r = None
      try:
         lock()
         r = _cmd.set_wizard_stack(stack)
      finally:
         unlock()
      return r

   def refresh_wizard(*arg): # INTERNAL
      r = None
      wiz = None
      if len(arg):
         wiz=arg[0]
      try:
         lock()
         r = _cmd.refresh_wizard()
      finally:
         unlock()
      return r

   def dirty_wizard(*arg): # INTERNAL
      r = None
      wiz = None
      if len(arg):
         wiz=arg[0]
      try:
         lock()
         r = _cmd.dirty_wizard()
      finally:
         unlock()
      return r

   def get_wizard(*arg): # INTERNAL
      r = None
      try:
         lock()
         r = _cmd.get_wizard()
      finally:
         unlock()
      return r

   def get_wizard_stack(*arg): # INTERNAL
      r = None
      try:
         lock()
         r = _cmd.get_wizard_stack()
      finally:
         unlock()
      return r

   def session_save_wizard(session):
      # double-pickle so that session file is class-independent
      session['wizard']=cPickle.dumps(cmd.get_wizard_stack(),1)
      return 1

   def session_restore_wizard(session):
      if session.has_key('wizard'):
         from pymol.wizard import message
         import __main__
#         __main__.message = message
         sys.modules['message'] = message
         try:
            wizards = cPickle.loads(session['wizard'])
            cmd.set_wizard_stack(wizards)
         except:
            print "Session-Warning: unable to restore wizard."
      return 1

   if session_restore_wizard not in pymol._session_restore_tasks:
      pymol._session_restore_tasks.append(session_restore_wizard)

   if session_save_wizard not in pymol._session_save_tasks:
      pymol._session_save_tasks.append(session_save_wizard)


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