Add some actions

[perso/Immae/Projets/Python/MusicSampler.git] / helpers / music_file.py

diff --git a/helpers/music_file.py b/helpers/music_file.py
index 39b0566ccd5c68ae925af87d93c45cb630f2dc78..36a7dd9ee913bc350058ae24de4079c17a4eb749 100644 (file)
--- a/helpers/music_file.py
+++ b/helpers/music_file.py
@@ -21,15 +21,38 @@ class MusicFile:
         self.loaded = True
         lock.release()
 
-    def play(self):
-        self.channel = self.sound.play()
+    def is_playing(self):
+        return self.channel is not None and self.channel.get_busy()
+
+    def play(self, fade_in = 0, volume = 100, start_at = 0):
+        self.set_volume(volume)
+
+        if start_at > 0:
+            song_duration = self.sound.get_length()
+            raw_data_length = len(self.raw_data)
+            start_offset = int((raw_data_length / song_duration) * start_at)
+            start_offset = start_offset - (start_offset % 2)
+            self.sound = pygame.mixer.Sound(self.raw_data[start_offset:])
+        else:
+            self.sound = pygame.mixer.Sound(self.raw_data)
+
+        self.channel = self.sound.play(fade_ms = fade_in * 1000)
 
     def pause(self):
         if self.channel is not None:
             self.channel.pause()
 
-    def stop(self):
+    def stop(self, fade_out = 0):
         self.channel = None
-        self.sound.stop()
-
+        if fade_out > 0:
+            self.sound.fadeout(fade_out * 1000)
+        else:
+            self.sound.stop()
+
+    def set_volume(self, value):
+        if value < 0:
+            value = 0
+        if value > 100:
+            value = 100
+        self.sound.set_volume(value / 100)