music_sampler/app.py

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