music_sampler.py

   1 import kivy
   2 kivy.require("1.9.1")
   3 from kivy.app import App
   4 from kivy.uix.floatlayout import FloatLayout
   5 from kivy.uix.relativelayout import RelativeLayout
   6 from kivy.properties import ListProperty, StringProperty
   7 from kivy.clock import Clock
   8 from kivy.core.window import Window
   9 from kivy.lang import Builder
  10 from helpers.key import Key
  11 from helpers.mapping import Mapping
  12 import helpers
  13
  14 class KeyList(RelativeLayout):
  15     keylist = ListProperty([])
  16     first_key = StringProperty("")
  17     second_key = StringProperty("")
  18     third_key = StringProperty("")
  19
  20     def append(self, value):
  21         self.keylist.insert(0, value)
  22
  23     def on_keylist(self, instance, new_key_list):
  24         if len(self.keylist) > 0:
  25             self.first_key  = self.keylist[0]
  26         if len(self.keylist) > 1:
  27             self.second_key = self.keylist[1]
  28         if len(self.keylist) > 2:
  29             self.third_key  = self.keylist[2]
  30
  31 class PlayList(RelativeLayout):
  32     playlist = ListProperty([])
  33
  34     def __init__(self, **kwargs):
  35         super(PlayList, self).__init__(**kwargs)
  36         Clock.schedule_interval(self.update_playlist, 0.5)
  37
  38     def update_playlist(self, dt):
  39         if self.parent is None or 'Mapping' not in self.parent.ids:
  40             return True
  41
  42         open_files = self.parent.ids['Mapping'].open_files
  43         self.playlist = []
  44         for music_file in open_files.values():
  45             if not music_file.is_playing():
  46                 continue
  47
  48             text = "{}/{}".format(
  49                     helpers.duration_to_min_sec(music_file.sound_position),
  50                     helpers.duration_to_min_sec(music_file.sound_duration)
  51                     )
  52
  53             if music_file.is_paused():
  54                 self.playlist.append(["⏸", music_file.name, text, False])
  55             else:
  56                 self.playlist.append(["⏵", music_file.name, text, True])
  57
  58
  59 class ActionList(RelativeLayout):
  60     action_title = StringProperty("")
  61     action_list = ListProperty([])
  62
  63     def update_list(self, key, action_number = 0):
  64         self.action_title = "actions linked to key {}:".format(key.key_sym)
  65         self.action_list = []
  66
  67         action_descriptions = [action.description() for action in key.actions]
  68
  69         for index, description in enumerate(action_descriptions):
  70             if index < int(action_number):
  71                 icon = "✓"
  72             elif index + 0.5 == action_number:
  73                 icon = "✅"
  74             else:
  75                 icon = " "
  76
  77             self.action_list.append([icon, description])
  78
  79 class Screen(FloatLayout):
  80     pass
  81
  82 class MusicSamplerApp(App):
  83     def build(self):
  84         Window.size = (913, 563)
  85
  86         return Screen()
  87
  88 if __name__ == '__main__':
  89     Builder.load_file(helpers.path() + "/music_sampler.kv")
  90     MusicSamplerApp().run()