Source Code for Module _Framework.ToggleComponent

 1  #Embedded file name: /Users/versonator/Hudson/live/Projects/AppLive/Resources/MIDI Remote Scripts/_Framework/ToggleComponent.py 
 2  from SubjectSlot import subject_slot 
 3  from ControlSurfaceComponent import ControlSurfaceComponent 
 4   
 5 -class ToggleComponent(ControlSurfaceComponent): 
 6      """ 
 7      Maps a toggle button to a boolean property of the Live model. 
 8      """ 
 9      is_private = True 
10      is_momentary = False 
11      read_only = False 
12   
13 -    def __init__(self, property_name = None, subject = None, is_momentary = False, model_transform = None, view_transform = None, read_only = False, *a, **k): 
14          if not property_name: 
15              raise AssertionError 
16              super(ToggleComponent, self).__init__(*a, **k) 
17              self._property_name = property_name 
18              self._property_slot = self.register_slot(subject, self._on_property_changed_in_model, property_name) 
19              self._property_button = None 
20              if is_momentary: 
21                  self.is_momentary = is_momentary 
22              if model_transform: 
23                  self.model_transform = model_transform 
24              if view_transform: 
25                  self.view_transform = model_transform 
26              self.read_only = read_only and read_only 
27   
28 -    def model_transform(self, value): 
29          return value 
30   
31 -    def view_transform(self, value): 
32          return value 
33   
34 -    def _get_subject(self): 
35          return self._property_slot.subject 
36   
37 -    def _set_subject(self, model): 
38          self._property_slot.subject = model 
39          self.update() 
40   
41      subject = property(_get_subject, _set_subject) 
42   
43 -    def _get_value(self): 
44          return getattr(self.subject, self._property_name) if self.subject else None 
45   
46 -    def _set_value(self, value): 
47          setattr(self.subject, self._property_name, value) 
48   
49      value = property(_get_value, _set_value) 
50   
51 -    def set_toggle_button(self, button): 
52          raise button is None or not self.is_momentary or button.is_momentary() or AssertionError 
53          self._on_button_value.subject = button 
54          self._update_button() 
55   
56 -    def on_enabled_changed(self): 
57          self.update() 
58   
59 -    def update(self): 
60          self._update_button() 
61   
62 -    def _update_button(self): 
63          if self.is_enabled(): 
64              button = self._on_button_value.subject 
65              if button: 
66                  button.set_light(self.view_transform(self.value)) 
67   
68 -    def _on_property_changed_in_model(self): 
69          self._update_button() 
70   
71      @subject_slot('value') 
72 -    def _on_button_value(self, value): 
73          if self.is_enabled() and not self.read_only: 
74              if self.is_momentary: 
75                  if value: 
76                      self.value = self.model_transform(True) 
77                  else: 
78                      self.value = self.model_transform(False) 
79              elif value: 
80                  self.value = self.model_transform(not self.value) 
81