Only change play button when playing

If no song is playing and the play button is clicked we shouldn't switch
to the pause button.  This could confuse users.

libsaria/music/audio.py

@@ -127,24 +127,28 @@ def play_locked():
 	global gst
 	global player
 	player.set_state(gst.STATE_PLAYING)
+	return get_state_locked() == gst.STATE_PLAYING
 
 def play():
 	global lock
 	lock.acquire()
-	play_locked()
+	ret = play_locked()
 	lock.release()
+	return ret
 
 
 def pause_locked():
 	global gst
 	global player
 	player.set_state(gst.STATE_PAUSED)
+	return get_state_locked() == gst.STATE_PAUSED
 
 def pause():
 	global lock
 	lock.acquire()
-	pause_locked()
+	ret = pause_locked()
 	lock.release()
+	return ret
 
 def stop_locked():
 	pause_locked()

ocarina/button.py

@@ -17,7 +17,7 @@ class Button(gtk.Button):
 		self.set_relief(gtk.RELIEF_NONE)
 		self.click_id = self.connect("clicked", self.clicked)
 		if show == True:
-			self.show()
+			Button.show(self)
 		self.set_alignment(0,0)
 
 	def clicked(self, button):
@@ -38,7 +38,12 @@ class PlayButton(Button):
 		LS.event.invite("POSTSTOP", self.show)
 	def clicked(self, button):
 		LS.music.play()
-
+	def hide(self, playing):
+		if playing == True:
+			Button.hide(self)
+	def show(self, paused):
+		if paused == True:
+			Button.show(self)
 
 class PauseButton(Button):
 	def __init__(self):
@@ -48,6 +53,12 @@ class PauseButton(Button):
 		LS.event.invite("POSTSTOP", self.hide)
 	def clicked(self, button):
 		LS.music.pause()
+	def hide(self, paused):
+		if paused == True:
+			Button.hide(self)
+	def show(self, playing):
+		if playing == True:
+			Button.show(self)
 
 
 class StopButton(Button):