Add load_all_musics flag and corresponding actions

[perso/Immae/Projets/Python/MusicSampler.git] / music_sampler / key.py

diff --git a/music_sampler/key.py b/music_sampler/key.py
index 534a3db565671128ac066d191f862c412c79783d..e524c350d86c3cf7cb0ceb6a378ee9edd25724b5 100644 (file)
--- a/music_sampler/key.py
+++ b/music_sampler/key.py
@@ -9,6 +9,10 @@ import time
 import threading
 from transitions.extensions import HierarchicalMachine as Machine
 
+# All drawing operations should happen in the main thread
+# https://github.com/kivy/kivy/wiki/Working-with-Python-threads-inside-a-Kivy-application
+from kivy.clock import mainthread
+
 class KeyMachine(Widget):
     STATES = [
         'initial',
@@ -118,22 +122,22 @@ class KeyMachine(Widget):
     def is_loaded_inactive(self):
         return self.is_loaded_no_config() or self.is_loaded_no_actions()
 
+    @mainthread
     def on_enter_configuring(self):
+        self.destroy_actions()
+        self.key.unset_description()
+        self.key.unset_color()
+
         if self.key.key_sym in self.key.parent.key_config:
             self.key.config = self.key.parent.key_config[self.key.key_sym]
 
-            self.key.actions = []
             for key_action in self.key.config['actions']:
                 self.key.add_action(key_action[0], **key_action[1])
 
             if 'description' in self.key.config['properties']:
                 self.key.set_description(self.key.config['properties']['description'])
-            else:
-                self.key.unset_description()
             if 'color' in self.key.config['properties']:
                 self.key.set_color(self.key.config['properties']['color'])
-            else:
-                self.key.unset_color()
             self.success()
         else:
             self.no_config()
@@ -145,29 +149,35 @@ class KeyMachine(Widget):
         else:
             self.no_actions()
 
+    def destroy_actions(self):
+        for action in self.key.actions:
+            action.destroy()
+        self.key.actions = []
+
     def run_actions(self, modifiers):
         self.key.parent.parent.ids['KeyList'].append(self.key.key_sym)
         debug_print("running actions for {}".format(self.key.key_sym))
         start_time = time.time()
-        self.key.parent.start_running(self, start_time)
+        self.key.parent.start_running(self.key, start_time)
         for self.key.current_action in self.key.actions:
-            if self.key.parent.keep_running(self, start_time):
+            if self.key.parent.keep_running(self.key, start_time):
                 self.key.list_actions()
                 self.key.current_action.run(start_time)
         self.key.list_actions(last_action_finished=True)
 
-        self.key.parent.finished_running(self, start_time)
+        self.key.parent.finished_running(self.key, start_time)
 
     def on_enter_loaded_protecting_repeat(self, modifiers):
-        if 'repeat_delay' in self.key.config['properties']:
+        if self.key.repeat_delay > 0:
             self.key.protecting_repeat_timer = threading.Timer(
-                    self.key.config['properties']['repeat_delay'],
+                    self.key.repeat_delay,
                     self.key.repeat_protection_finished)
             self.key.protecting_repeat_timer.start()
         else:
             self.key.repeat_protection_finished()
 
     # Callbacks
+    @mainthread
     def key_loaded_callback(self):
         self.key.parent.key_loaded_callback()
 
@@ -246,6 +256,10 @@ class Key(ButtonBehavior, Widget):
         super(Key, self).__init__(**kwargs)
 
     # Kivy events
+    @mainthread
+    def update_state(self, value):
+        self.machine_state = value
+
     def on_key_sym(self, key, key_sym):
         if key_sym != "":
             self.configure()
@@ -287,6 +301,15 @@ class Key(ButtonBehavior, Widget):
     def unset_color(self):
         self.custom_color = [0, 1, 0]
 
+    # Helpers
+    @property
+    def repeat_delay(self):
+         if hasattr(self, 'config') and\
+                 'repeat_delay' in self.config['properties']:
+             return self.config['properties']['repeat_delay']
+         else:
+             return 0
+
     # Actions handling
     def add_action(self, action_name, **arguments):
         self.actions.append(Action(action_name, self, **arguments))