Package horizons :: Package util :: Module pychanchildfinder
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Source Code for Module horizons.util.pychanchildfinder

 1  # ################################################### 
 2  # Copyright (C) 2008-2017 The Unknown Horizons Team 
 3  # team@unknown-horizons.org 
 4  # This file is part of Unknown Horizons. 
 5  # 
 6  # Unknown Horizons is free software; you can redistribute it and/or modify 
 7  # it under the terms of the GNU General Public License as published by 
 8  # the Free Software Foundation; either version 2 of the License, or 
 9  # (at your option) any later version. 
10  # 
11  # This program is distributed in the hope that it will be useful, 
12  # but WITHOUT ANY WARRANTY; without even the implied warranty of 
13  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
14  # GNU General Public License for more details. 
15  # 
16  # You should have received a copy of the GNU General Public License 
17  # along with this program; if not, write to the 
18  # Free Software Foundation, Inc., 
19  # 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA 
20  # ################################################### 
21   
22   
23 -class PychanChildFinder(dict):
24 """Caches child references of a gui object, since pychan's findChild function is expensive. 25 Init it with your gui and use like a dictionary or call object directly (__call__)"""
26 - def __init__(self, gui):
27 super().__init__() 28 self.gui = gui
29
30 - def __getitem__(self, key):
31 try: 32 return dict.__getitem__(self, key) 33 except KeyError: 34 self[key] = self.gui.findChild(name=key) 35 return self[key]
36
37 - def __call__(self, name):
38 return self[name]
39