Source Code for Module teamwork.widgets.balloon

 1  from getpass import getuser 
 2  import time 
 3  import Pmw 
 4  from teamwork.agent.audit import Auditor 
 5   
 6 -class EntityBalloon(Pmw.Balloon): 
 7      """Minor augmentation of the PMW Balloon help system that allows one to 
 8      easily update balloon strings associated with entity histories""" 
 9       
10 -    def __init__(self, parent = None, **kw): 
11          """Identical to the PMW Balloon class initialization, except that it 
12          also initializes the table of managed widgets""" 
13          Pmw.Balloon.__init__(self,parent,**kw) 
14          self.bindings = {} 
15           
16 -    def add(self,widget,entity,key): 
17          """Adds the given widget to the handling of this balloon help system 
18          and associates it with the given entity and state/goal name""" 
19          if isinstance(entity,Auditor): 
20              history = entity.getHistory(key) 
21              try: 
22                  str = history[0] 
23              except IndexError: 
24                  # Initialize history 
25                  from getpass import getuser 
26                  entry = {'what':'initialized', 
27                           'who':getuser(), 
28                           'when':time.time() 
29                           } 
30                  entity.extendHistory(entry) 
31                  str = entity.formatHistory(entry) 
32              self.bind(widget,str) 
33              self.bindings[widget] = (entity,key) 
34          else: 
35              # Just plain old tooltip 
36              self.bind(widget,key) 
37   
38 -    def update(self,widget=None): 
39          """Updates the balloon help of all of the known widgets""" 
40          if widget: 
41              self.__update(widget) 
42          else: 
43              for widget in self.bindings.keys(): 
44                  self.__update(widget) 
45   
46 -    def __update(self,widget): 
47          """Updates the balloon help of the specified widget""" 
48          entity,key = self.bindings[widget] 
49          str = entity.getHistory(key)[0] 
50          self.bind(widget,str) 
51   
52 -    def __delete(self,widget): 
53          del self.bindings[widget] 
54   
55 -    def delete(self,widget=None): 
56          if widget: 
57              self.__delete(widget) 
58          else: 
59              for widget in self.bindings.keys(): 
60                  self.__delete(widget) 
61