helpers/key.py

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