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from kivy.app import App
from kivy.uix.widget import Widget
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.relativelayout import RelativeLayout
from kivy.properties import AliasProperty, ReferenceListProperty, BooleanProperty, NumericProperty, ListProperty, StringProperty, ObjectProperty
from kivy.vector import Vector
from kivy.clock import Clock
from kivy.uix.behaviors import ButtonBehavior
from kivy.uix.label import Label
from kivy.core.window import Window
from helpers.action import *
import time
import sys
import math
import pygame
import helpers
import threading
class KeyDescription(Label):
pass
class Key(ButtonBehavior, Widget):
key_sym = StringProperty(None)
custom_color = ListProperty([0, 1, 0, 1])
custom_unready_color = ListProperty([0, 1, 0, 100/255])
description_title = StringProperty("")
description = ListProperty([])
is_key_ready = BooleanProperty(True)
def get_color(self):
if not self.has_actions:
return [1, 1, 1, 1]
elif self.all_actions_ready:
return self.custom_color
else:
return self.custom_unready_color
def set_color(self):
pass
color = AliasProperty(get_color, set_color, bind=['is_key_ready'])
def __init__(self, **kwargs):
super(Key, self).__init__(**kwargs)
self.actions = []
def on_key_sym(self, key, key_sym):
if key_sym in self.parent.key_config:
self.is_key_ready = False
self.config = self.parent.key_config[key_sym]
self.actions = []
for key_action in self.config['actions']:
self.add_action(key_action[0], **key_action[1])
if 'description' in self.config['properties']:
key.set_description(self.config['properties']['description'])
if 'color' in self.config['properties']:
key.set_color(self.config['properties']['color'])
Clock.schedule_interval(self.check_all_active, 1)
def check_all_active(self, dt):
if self.all_actions_ready:
self.is_key_ready = True
return False
def set_description(self, description):
if description[0] is not None:
self.description_title = str(description[0])
for desc in description[1:]:
if desc is None:
self.description.append("")
else:
self.description.append(str(desc).replace(" ", " "))
def set_color(self, color):
color = [x / 255 for x in color]
color.append(1)
self.custom_color = color
color[3] = 100 / 255
self.custom_unready_color = tuple(color)
@property
def has_actions(self):
return len(self.actions) > 0
@property
def all_actions_ready(self):
return all(action.ready() for action in self.actions)
def add_action(self, action_name, **arguments):
self.actions.append(Action(action_name, self, **arguments))
def do_actions(self):
print("running actions for {}".format(self.key_sym))
start_time = time.time()
self.parent.start_running(self, start_time)
action_number = 0
for action in self.actions:
if self.parent.keep_running(self, start_time):
self.list_actions(action_number = action_number + 0.5)
action.run()
action_number += 1
self.list_actions(action_number = action_number)
self.parent.finished_running(self, start_time)
def list_actions(self, action_number = 0):
self.parent.parent.ids['ActionList'].update_list(self, action_number)
def on_press(self):
self.list_actions()
pass
class PlayList(RelativeLayout):
playlist = ListProperty([])
def __init__(self, **kwargs):
super(PlayList, self).__init__(**kwargs)
Clock.schedule_interval(self.update_playlist, 0.5)
def update_playlist(self, dt):
if self.parent is None or 'Mapping' not in self.parent.ids:
return True
open_files = self.parent.ids['Mapping'].open_files
self.playlist = []
for music_file in open_files.values():
if not music_file.is_playing():
continue
if music_file.is_paused():
self.playlist.append(["⏸", music_file.name, False])
else:
self.playlist.append(["⏵", music_file.name, True])
class ActionList(RelativeLayout):
action_title = StringProperty("")
action_list = ListProperty([])
def update_list(self, key, action_number = 0):
self.action_title = "actions linked to key {}:".format(key.key_sym)
self.action_list = []
action_descriptions = [action.description() for action in key.actions]
for index, description in enumerate(action_descriptions):
if index < int(action_number):
icon = "✓"
elif index + 0.5 == action_number:
icon = "✅"
else:
icon = " "
self.action_list.append([icon, description])
class Mapping(RelativeLayout):
expected_keys = NumericProperty(0)
def __init__(self, **kwargs):
self.key_config, self.channel_number, self.open_files = helpers.parse_config2()
super(Mapping, self).__init__(**kwargs)
self._keyboard = Window.request_keyboard(self._keyboard_closed, self)
self._keyboard.bind(on_key_down=self._on_keyboard_down)
self.running = []
pygame.mixer.init(frequency = 44100)
pygame.mixer.set_num_channels(self.channel_number)
def _keyboard_closed(self):
self._keyboard.unbind(on_key_down=self._on_keyboard_down)
self._keyboard = None
def _on_keyboard_down(self, keyboard, keycode, text, modifiers):
key = self.find_by_key_code(keycode)
if key is not None:
threading.Thread(name = "MSKeyAction", target=key.do_actions).start()
return True
def find_by_key_code(self, key_code):
if "Key_" + str(key_code[0]) in self.ids:
return self.ids["Key_" + str(key_code[0])]
return None
def find_by_unicode(self, key_sym):
for key in self.children:
if not type(key).__name__ == "Key":
continue
print(key.key_sym, key_sym)
if key.key_sym == key_sym:
print("found")
return key
return None
def stop_all_running(self):
self.running = []
def start_running(self, key, start_time):
self.running.append((key, start_time))
def keep_running(self, key, start_time):
return (key, start_time) in self.running
def finished_running(self, key, start_time):
if (key, start_time) in self.running:
self.running.remove((key, start_time))
class Screen(FloatLayout):
pass
class MusicSamplerApp(App):
def build(self):
Window.size = (913, 563)
return Screen()
if __name__ == '__main__':
MusicSamplerApp().run()
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