music_sampler.py

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