from HTMLComponent import *
from GUIComponent import *

from MenuList import MenuList

from Tools.Directories import *
import os

from enigma import *

RT_HALIGN_LEFT = 0
RT_HALIGN_RIGHT = 1
RT_HALIGN_CENTER = 2
RT_HALIGN_BLOCK = 4

RT_VALIGN_TOP = 0
RT_VALIGN_CENTER = 8
RT_VALIGN_BOTTOM = 16

STATE_PLAY = 0
STATE_PAUSE = 1
STATE_STOP = 2
STATE_REWIND = 3
STATE_FORWARD = 4
STATE_NONE = 5

PlayIcon = loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "ico_mp_play.png"))
PauseIcon = loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "ico_mp_pause.png"))
StopIcon = loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "ico_mp_stop.png"))
RewindIcon = loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "ico_mp_rewind.png"))
ForwardIcon = loadPNG(resolveFilename(SCOPE_SKIN_IMAGE, "ico_mp_forward.png"))

def PlaylistEntryComponent(serviceref, state):
	res = [ serviceref ]
	res.append((eListboxPythonMultiContent.TYPE_TEXT,25, 0, 470, 32, 0, RT_VALIGN_CENTER, os.path.split(serviceref.getPath().split('/')[-1])[1]))
	png = None
	if state == STATE_PLAY:
		png = PlayIcon
	elif state == STATE_PAUSE:
		png = PauseIcon
	elif state == STATE_STOP:
		png = StopIcon
	elif state == STATE_REWIND:
		png = RewindIcon
	elif state == STATE_FORWARD:
		png = ForwardIcon

	if png is not None:
		res.append((eListboxPythonMultiContent.TYPE_PIXMAP_ALPHATEST, 5, 0, 16, 16, png))
    
	return res

class PlayList(MenuList, HTMLComponent, GUIComponent):
	def __init__(self):
		GUIComponent.__init__(self)
		self.l = eListboxPythonMultiContent()
		self.list = []
		self.l.setList(self.list)
		self.l.setFont(0, gFont("Regular", 18))
		self.currPlaying = -1
		self.oldCurrPlaying = -1
	
	def clear(self):
		del self.list[:]
		self.l.setList(self.list)
		self.currPlaying = 0
		self.oldCurrPlaying = -1

	GUI_WIDGET = eListbox

	def postWidgetCreate(self, instance):
		instance.setContent(self.l)
		instance.setItemHeight(22)

	def getSelection(self):
		return self.l.getCurrentSelection()[0]
		
	def getSelectionIndex(self):
		return self.l.getCurrentSelectionIndex()

	def addFile(self, serviceref):
		self.list.append(PlaylistEntryComponent(serviceref, STATE_NONE))

	def deleteFile(self, index):
		if self.currPlaying >= index:
			self.currPlaying -= 1
		del self.list[index]

	def setCurrentPlaying(self, index):
		self.oldCurrPlaying = self.currPlaying
		self.currPlaying = index
	
	def updateState(self, state):
		if self.currPlaying == -1:
			return
		if len(self.list) > self.oldCurrPlaying and self.oldCurrPlaying != -1:
			self.list[self.oldCurrPlaying] = PlaylistEntryComponent(self.list[self.oldCurrPlaying][0], STATE_NONE)
		self.list[self.currPlaying] = PlaylistEntryComponent(self.list[self.currPlaying][0], state)
		self.updateList()

	def playFile(self):
		self.updateState(STATE_PLAY)

	def pauseFile(self):
		self.updateState(STATE_PAUSE)
		
	def stopFile(self):
		self.updateState(STATE_STOP)

	def rewindFile(self):
		self.updateState(STATE_REWIND)
		
	def forwardFile(self):
		self.updateState(STATE_FORWARD)
	
	def updateList(self):
		self.l.setList(self.list)
		
	def getCurrentIndex(self):
		return self.currPlaying
	
	def getServiceRefList(self):
		list = []
		for x in self.list:
			list.append(x[0])
		return list
	
	def __len__(self):
		return len(self.list)