Source Code for Module vwidget.main

 1   
 2  import gtk 
 3  import time 
 4  import gobject 
 5  from threading import currentThread 
 6   
 7  from Queue import Queue 
 8   
 9  gtk.gdk.threads_init() 
10   
11 -def idlethread(func): 
12      ''' 
13      A decorator which causes the function to be called by the gtk 
14      main iteration loop rather than synchronously... 
15   
16      NOTE: This makes the call async handled by the gtk main 
17      loop code.  you can NOT return anything. 
18      ''' 
19      def dowork(arginfo): 
20          args,kwargs = arginfo 
21          return func(*args, **kwargs) 
22   
23      def idleadd(*args, **kwargs): 
24          if currentThread().getName() == 'GtkThread': 
25              return func(*args, **kwargs) 
26          gtk.gdk.threads_enter() 
27          gobject.idle_add(dowork, (args,kwargs)) 
28          gtk.gdk.threads_leave() 
29   
30      return idleadd 
31   
32 -def idlethreadsync(func): 
33      ''' 
34      Similar to idlethread except that it is synchronous and able 
35      to return values. 
36      ''' 
37      q = Queue() 
38      def dowork(arginfo): 
39          args,kwargs = arginfo 
40          try: 
41              q.put(func(*args, **kwargs)) 
42          except Exception, e: 
43              q.put(e) 
44   
45      def idleadd(*args, **kwargs): 
46          if currentThread().getName() == 'GtkThread': 
47              return func(*args, **kwargs) 
48          gtk.gdk.threads_enter() 
49          gobject.idle_add(dowork, (args,kwargs)) 
50          gtk.gdk.threads_leave() 
51          return q.get() 
52   
53      return idleadd 
54   
55  @idlethread 
56 -def shutdown(): 
57      gtk.main_quit() 
58   
59 -def mainthread(): 
60      currentThread().setName('GtkThread') 
61   
62 -def main(): 
63      currentThread().setName('GtkThread') 
64      gtk.gdk.threads_enter() 
65      gtk.main() 
66      gtk.gdk.threads_leave() 
67   
68 -def doiterations(): 
69      gtk.gdk.threads_enter() 
70      while gtk.events_pending(): 
71          gtk.main_iteration(False) 
72      gtk.gdk.threads_leave() 
73