####AlsaDevices.py#####

def GetAlsaList(type):
	"""Returns a dictionary containing ALSA device names and their correspoding ALSA ids (e.g. hw:0).

	Keyword arguments:
	type -- specifies the type of ALSA device we are looking for, playback or capture."""

	#Get HAL Manager
	bus = dbus.SystemBus()
	object = bus.get_object("org.freedesktop.Hal", "/org/freedesktop/Hal/Manager")
	manager = dbus.Interface(object, "org.freedesktop.Hal.Manager")
	
	found = {}
	#Find all alsa devices of the requested type
	devices = manager.FindDeviceStringMatch("alsa.type", type)
	#Add the ALSA default card to the list
	found["Default"] = "default"
	for device in devices:
		#Iterate through all the ALSA devices found and insert them in to a dictionary
		device_object = bus.get_object("org.freedesktop.Hal", device)
		properties = device_object.GetAllProperties(dbus_interface="org.freedesktop.Hal.Device")
		name = properties["alsa.device_id"]
		cardnum = "hw:" + str(properties["alsa.card"]) #FIXME: This may cause problems with plughw devices
		#Avoid duplicate entries
		if cardnum not in found.values():
			found[name] = cardnum
		
	return found

####PreferencesDialog.py####

	def __init__(self, project, mainwindow, icon=None):
		"""Keyword arguments:
		project -- The jokosher project currently loaded.
		mainwindow -- A reference to the main Jokosher window
		icon -- The icon for the window manager to display for this window (optional)."""

		self.project = project
		self.mainwindow = mainwindow

		#Initialize GTK resources from glade file
		self.res = gtk.glade.XML(Globals.GLADE_PATH, "PreferencesDialog")

		self.signals = {
			"on_Setting_changed" : self.OnSettingChanged,
			"on_Close_clicked" : self.OnClose,
		}

		self.res.signal_autoconnect(self.signals)
		self.dlg = self.res.get_widget("PreferencesDialog")
		self.dlg.set_icon(icon)
		self.recordingFileFormat = self.res.get_widget("recordingFileFormat")
		self.samplingRate = self.res.get_widget("samplingRate")
		self.playingDevice = self.res.get_widget("playbackDevice")
		self.radioWelcome = self.res.get_widget("startupWelcomeDialog")
		self.radioLastProject = self.res.get_widget("startupLastProject")
		self.radioNothing = self.res.get_widget("startupNothing")

		#Find all ALSA devices 
		self.playbacks = AlsaDevices.GetAlsaList("playback")
		for playback in self.playbacks:
			print playback
			self.playingDevice.append_text(playback)