Source Code for Module _Framework.MomentaryModeObserver

 1  #Embedded file name: /Users/versonator/Hudson/live/Projects/AppLive/Resources/MIDI Remote Scripts/_Framework/MomentaryModeObserver.py 
 2  import Defaults 
 3   
 4 -class MomentaryModeObserver(object): 
 5      """ Listens to the changes of a given set of controls and decides which mode to use """ 
 6   
 7 -    def __init__(self): 
 8          object.__init__(self) 
 9          self._controls = None 
10          self._mode_callback = None 
11          self._reset() 
12   
13 -    def disconnect(self): 
14          self._reset() 
15   
16 -    def set_mode_details(self, base_mode, controls, mode_callback = None): 
17          if not isinstance(base_mode, int): 
18              raise AssertionError 
19              raise isinstance(controls, (type(None), tuple)) or AssertionError 
20              raise mode_callback == None or callable(mode_callback) or AssertionError 
21              self._reset() 
22              self._controls = controls != None and controls 
23              for control in self._controls: 
24                  control.add_value_listener(self._control_changed) 
25   
26          self._base_mode = base_mode 
27          self._mode_callback = mode_callback 
28   
29 -    def is_mode_momentary(self): 
30          return self._controls_changed or self._timer_count >= Defaults.MOMENTARY_DELAY_TICKS 
31   
32 -    def on_timer(self): 
33          self._timer_count += 1 
34   
35 -    def _control_changed(self, value): 
36          if self._mode_callback == None or self._mode_callback() == self._base_mode: 
37              self._controls_changed = True 
38   
39 -    def _release_controls(self): 
40          if self._controls != None: 
41              for control in self._controls: 
42                  control.remove_value_listener(self._control_changed) 
43   
44              self._controls = None 
45   
46 -    def _reset(self): 
47          self._base_mode = -1 
48          self._controls_changed = False 
49          self._mode_callback = None 
50          self._timer_count = 0 
51          self._release_controls() 
52