helpers/key.py

   1 from kivy.uix.widget import Widget
   2 from kivy.properties import AliasProperty, BooleanProperty, ListProperty, StringProperty
   3 from kivy.clock import Clock
   4 from kivy.uix.behaviors import ButtonBehavior
   5
   6 from .action import *
   7 from . import debug_print
   8 import time
   9
  10 class Key(ButtonBehavior, Widget):
  11     key_sym = StringProperty(None)
  12     custom_color = ListProperty([0, 1, 0, 1])
  13     custom_unready_color = ListProperty([0, 1, 0, 100/255])
  14     description_title = StringProperty("")
  15     description = ListProperty([])
  16     is_key_ready = BooleanProperty(True)
  17
  18     def get_color(self):
  19         if not self.has_actions:
  20             return [1, 1, 1, 1]
  21         elif self.all_actions_ready:
  22             return self.custom_color
  23         else:
  24             return self.custom_unready_color
  25     def set_color(self):
  26         pass
  27
  28     color = AliasProperty(get_color, set_color, bind=['is_key_ready'])
  29
  30     def __init__(self, **kwargs):
  31         super(Key, self).__init__(**kwargs)
  32         self.actions = []
  33
  34     def on_key_sym(self, key, key_sym):
  35         if key_sym in self.parent.key_config:
  36             self.is_key_ready = False
  37
  38             self.config = self.parent.key_config[key_sym]
  39
  40             self.actions = []
  41             for key_action in self.config['actions']:
  42                 self.add_action(key_action[0], **key_action[1])
  43
  44             if 'description' in self.config['properties']:
  45                 key.set_description(self.config['properties']['description'])
  46             if 'color' in self.config['properties']:
  47                 key.set_color(self.config['properties']['color'])
  48
  49             Clock.schedule_interval(self.check_all_active, 1)
  50
  51     def check_all_active(self, dt):
  52         if self.all_actions_ready:
  53             self.is_key_ready = True
  54             return False
  55
  56     def set_description(self, description):
  57         if description[0] is not None:
  58             self.description_title = str(description[0])
  59         for desc in description[1:]:
  60             if desc is None:
  61                 self.description.append("")
  62             else:
  63                 self.description.append(str(desc).replace(" ", " "))
  64
  65     def set_color(self, color):
  66         color = [x / 255 for x in color]
  67         color.append(1)
  68         self.custom_color = color
  69         color[3] = 100 / 255
  70         self.custom_unready_color = tuple(color)
  71
  72     @property
  73     def has_actions(self):
  74         return len(self.actions) > 0
  75
  76     @property
  77     def all_actions_ready(self):
  78         return all(action.ready() for action in self.actions)
  79
  80     def add_action(self, action_name, **arguments):
  81         self.actions.append(Action(action_name, self, **arguments))
  82
  83     def interrupt_action(self):
  84         self.current_action.interrupt()
  85
  86     def do_actions(self):
  87         if not self.enabled:
  88             return None
  89
  90         self.parent.parent.ids['KeyList'].append(self.key_sym)
  91         debug_print("running actions for {}".format(self.key_sym))
  92         start_time = time.time()
  93         self.parent.start_running(self, start_time)
  94         action_number = 0
  95         for self.current_action in self.actions:
  96             if self.parent.keep_running(self, start_time):
  97                 self.list_actions(action_number = action_number + 0.5)
  98                 self.current_action.run()
  99                 action_number += 1
 100                 self.list_actions(action_number = action_number)
 101
 102         self.parent.finished_running(self, start_time)
 103
 104     def list_actions(self, action_number = 0):
 105         self.parent.parent.ids['ActionList'].update_list(self, action_number)
 106
 107     def on_press(self):
 108         self.list_actions()
 109     pass