path: root/winMain.py

from clMonty import monty
from clLibrary import Library
from winConnect import winConnect
from PyQt4 import QtGui, QtCore
from traceback import *
import time
import sys
from misc import *


clrRowSel=QtGui.QColor(180,180,180)

class SongList(QtGui.QWidget):
	# CONFIGURATION VARIABLES
	# height of line in pxl
	lineHeight=20
	margin=4
	scrollbarWidth=15
	minHeaderWidth=50
	# alternating colors
	colors=[QtGui.QColor(255,255,255), QtGui.QColor(230,230,255)]
	clrSel=QtGui.QColor(100,100,180)	# color of selection
	clrBg=QtGui.QColor(200,200,230)	# background color

	onDoubleClick=None

	# array( (header, width, visible)+ )
	headers=None
	songs=None	# original songs
	numSongs=None	# number of songs
	fSongs=None	# filtered songs
	fNumSongs=None	# number of filtered songs

	vScrollbar=None
	hScrollbar=None

	topRow=-1
	numRows=-1
	selRange=None	# array of ranges of rows currently selected; relative to 0

	selMode=False	# currently in select mode?
	resizeCol=None	# resizing a column?
	clrID=None	# do we have to color a row with certain ID? [ID, color]
	scrollMult=1	# how many rows do we jump when scrolling by dragging
	xOffset=0	# offset for drawing. Is changed by hScrollbar
	resizeColumn=None	# indicates this column should be recalculated
	redrawID=None	# redraw this ID/row only

	def __init__(self, parent, headers, onDoubleClick):
		QtGui.QWidget.__init__(self, parent)
		self.onDoubleClick=onDoubleClick

		# we receive an array of strings; we convert that to an array of (header, width)
		self.headers=map(lambda h: [h, 250, True], headers)
		self.headers.insert(0, ['id', 30, True])
		self.songs=None
		self.numSongs=None
		self.fSongs=None
		self.fNumSongs=None
		self.xOffset=0
		self.resizeColumn=None
		
		self.vScrollbar=QtGui.QScrollBar(QtCore.Qt.Vertical, self)
		self.vScrollbar.setMinimum(0)
		self.vScrollbar.setMaximum(1)
		self.vScrollbar.setValue(0)

		self.hScrollbar=QtGui.QScrollBar(QtCore.Qt.Horizontal, self)
		self.hScrollbar.setMinimum(0)
		self.hScrollbar.setMaximum(1)
		self.hScrollbar.setValue(0)
		self.hScrollbar.setPageStep(200)

		self.topRow=0
		self.numRows=0
		self.selRows=[]
		self.selMode=False
		self.clrID=[-1,0]

		self.updateSongs([])
		doEvents()
		
		self.connect(self.vScrollbar, QtCore.SIGNAL('valueChanged(int)'),self.onVScroll)
		self.connect(self.hScrollbar, QtCore.SIGNAL('valueChanged(int)'),self.onHScroll)
		
		self.setMouseTracking(True)
		self.setFocusPolicy(QtCore.Qt.TabFocus or QtCore.Qt.ClickFocus
				or QtCore.Qt.StrongFocus or QtCore.Qt.WheelFocus)

		self.setAttribute(QtCore.Qt.WA_OpaquePaintEvent)

	def sizeHint(self):
		return QtCore.QSize(10000,10000)

	def updateSongs(self, songs):
		self.songs=songs
		self.numSongs=len(songs)
		self.fSongs=songs
		self.fNumSongs=self.numSongs

		self.selRows=[]
		self.selMode=False

		self.resizeEvent(None)
		self.update()

	def selectedSongs(self):
		ret=[]
		for range in self.selRows:
			songs=filter(lambda song: song._data['id']>=range[0] and song._data['id']<=range[1], self.songs)
			for song in songs:
				ret.append(song)
		return ret

	def filter(self, strFilter):
		self.fSongs=filter(lambda song: strFilter in str(song).lower(), self.songs)
		self.fNumSongs=len(self.fSongs)

		self.resizeEvent(None)
		self.update()

	def colorID(self, id, clr):
		self.clrID=[id, clr]
		self.redrawID=id

		self.update()

	def selectRow(self, row):
		self.selRows=[[row,row]]
		
		self.update()
	
	def showColumn(self, column, show=True):
		self.headers[column][2]=show
		
		self.update()

	def autoSizeColumn(self, column):
		self.resizeColumn=column

		self.update()

	def visibleSongs(self):
		ret=[]
		for row in xrange(self.topRow, min(self.numSongs, self.topRow+self.numRows)-1):
			ret.append(self.fSongs[row])
		return ret

	def ensureVisible(self, id):
		if len(filter(lambda song: song.getID()==id, self.visibleSongs())):
			return
		row=0
		for song in self.fSongs:
			if song.getID()==id:
				self.vScrollbar.setValue(row-self.numRows/2)
				self.update()
				break
			row+=1

	
	def onVScroll(self, value):
		" 'if value<0' needed because minimum can be after init <0 at some point ..."
		if value<0:
			value=0
		if value>self.fNumSongs:
			value=self.fNumSongs
		self.topRow=value

		self.update()
	
	def onHScroll(self, value):
		self.xOffset=-self.hScrollbar.value()*2
		self.update()
	
	def _pos2row(self, pos):
		return int(pos.y()/self.lineHeight)-1

	def focusOutEvent(self, event):
		self.update()
	def focusInEvent(self, event):
		self.update()
	def wheelEvent(self, event):
		if self.vScrollbar.isVisible():
			event.accept()
			numDegrees=event.delta() / 8
			numSteps=5*numDegrees/15
			self.vScrollbar.setValue(self.vScrollbar.value()-numSteps)

	
	def resizeEvent(self, event):
		self.numRows=int(self.height()/self.lineHeight)+1
		
		# check vertical scrollbar
		if self.numRows+1>=self.fNumSongs:
			self.vScrollbar.setVisible(False)
			self.vScrollbar.setValue(0)
		else:
			self.vScrollbar.setVisible(True)
			self.vScrollbar.setPageStep(self.numRows-2)
			self.vScrollbar.setMinimum(0)
			self.vScrollbar.setMaximum(self.fNumSongs-self.numRows+1)
			self.vScrollbar.resize(self.scrollbarWidth, self.height()-self.lineHeight-1)
			self.vScrollbar.move(self.width()-self.vScrollbar.width()-1, self.lineHeight-1)
		
		# check horizontal scrollbar
		self.scrollWidth=0
		for hdr in self.headers:
			if hdr[2]:
				self.scrollWidth+=hdr[1]
		
		if self.scrollWidth>self.width():
			self.hScrollbar.setVisible(True)
			self.hScrollbar.setMinimum(0)
			self.hScrollbar.setMaximum((self.scrollWidth-self.width())/2)
			self.hScrollbar.resize(self.width(), self.lineHeight)
			self.hScrollbar.move(0, self.height()-self.lineHeight-1)

			self.vScrollbar.resize(self.vScrollbar.width(), self.vScrollbar.height()-self.lineHeight)
			self.vScrollbar.setMaximum(self.vScrollbar.maximum()+1)

			self.numRows-=1
		else:
			self.hScrollbar.setVisible(False)
			self.hScrollbar.setValue(0)

	
	def mouseReleaseEvent(self, event):
		if self.selMode:
			self.selMode=False
			# find all consecutive ranges
			fSongs=self.fSongs
			self.selRows.sort()
			ranges=[]
			curRange=[]
			for song in fSongs[min(self.selRows[0]):max(self.selRows[0])+1]:
				id=song.getID()
				if len(curRange)==0 or curRange[-1]+1==id:
					curRange.append(id)
				else:
					ranges.append(curRange)
					curRange=[id]
			if len(curRange):
				ranges.append(curRange)
			# clean up ranges
			self.selRows=[]
			for range in ranges:
				self.selRows.append([range[0], range[-1]])
			self.update()
		
		elif self.resizeCol!=None:
			self.resizeCol=None
			self.update()


	def mousePressEvent(self, event):
		self.setFocus()
		pos=event.pos()
		row=self._pos2row(pos)
		self.scrollMult=1
		if row==-1:
			self.resizeCol=None
			x=0+self.xOffset
			i=0
			for hdr in self.headers:
				if hdr[2]:
					x+=hdr[1]
				if abs(x-pos.x())<4:
					self.resizeCol=i
				i+=1
			if self.resizeCol==None:
				self.selMode=True
				self.selRows=[[0, self.fNumSongs-1]]
		elif event.button()==QtCore.Qt.LeftButton:
			self.selRows=[[self.topRow+row,self.topRow+row]]
			self.selMode=True
		
		self.update()

	def mouseMoveEvent(self, event):
		pos=event.pos()
		row=self._pos2row(pos)
		if self.selMode:
			if row<0:
				row=0
				if self.topRow>0:
					self.scrollMult+=0.1
					jump=int(self.scrollMult)*int(abs(pos.y())/self.lineHeight)
					self.vScrollbar.setValue(self.vScrollbar.value()-jump)
					row=jump
			elif row>=self.numRows:
				self.scrollMult+=0.1
				jump=int(self.scrollMult)*int(abs(self.height()-pos.y())/self.lineHeight)
				self.vScrollbar.setValue(self.vScrollbar.value()+jump)
				row=self.numRows-jump
			else:
				self.scrollMult=1
			self.selRows[0][1]=row+self.topRow
			self.update()
		elif self.resizeCol!=None:
			prev=0
			for i in xrange(self.resizeCol):
				hdr=self.headers[i]
				if hdr[2]:
					prev+=hdr[1]
			self.headers[self.resizeCol][1]=pos.x()-prev-self.xOffset
			if self.headers[self.resizeCol][1]<self.minHeaderWidth:
				self.headers[self.resizeCol][1]=self.minHeaderWidth
			self.resizeEvent(None)
			self.update()
	
	def mouseDoubleClickEvent(self, event):
		pos=event.pos()
		row=self._pos2row(pos)
		if row>=0:
			self.onDoubleClick()
		else:
			# auto-size column
			x=0+self.xOffset
			i=0
			for hdr in self.headers:
				if hdr[2]:
					x+=hdr[1]
				if abs(x-pos.x())<4:
					self.autoSizeColumn(i)
					break
				i+=1

	def _paintRow(self, p, row, y, width):
		song=self.fSongs[row]
		lineHeight=self.lineHeight
		margin=self.margin
		id=song._data['id']
		
		# determine color of row. Default is row-color, but can be overridden by
		# (in this order): hover, selection, special row color!
		clr=self.colors[row%2]
		clrTxt=QtCore.Qt.black
		for range in self.selRows:
			if self.selMode==False and id>=range[0] and id<=range[1]:
				clr=self.clrSel
				clrTxt=QtCore.Qt.white
			elif self.selMode and row>=min(range) and row<=max(range):
				clr=self.clrSel
				clrTxt=QtCore.Qt.white
		if id==int(self.clrID[0]):
			clrTxt=QtCore.Qt.white
			clr=self.clrID[1]

		p.fillRect(QtCore.QRect(2, y, width-3, lineHeight), QtGui.QBrush(clr))
		p.setPen(QtGui.QColor(230,230,255))
		p.drawRect(QtCore.QRect(2, y, width-3, lineHeight))
		p.setPen(QtCore.Qt.black)
		x=margin+self.xOffset
		for hdr in self.headers:
			if hdr[2]:
				rect=p.boundingRect(x, y, hdr[1]-margin, lineHeight, QtCore.Qt.AlignLeft, str(song.getTag(hdr[0])))
				text=str(song.getTag(hdr[0]))
				p.setPen(clrTxt)
				p.drawText(x, y+1, hdr[1]-margin, lineHeight, QtCore.Qt.AlignLeft, text)
				if rect.width()>hdr[1]-margin:
					p.fillRect(x+hdr[1]-15,y+1,15,lineHeight-1, QtGui.QBrush(clr))
					p.drawText(x+hdr[1]-15,y+1,15,lineHeight-1, QtCore.Qt.AlignLeft, "...")
				x+=hdr[1]
				p.setPen(QtCore.Qt.black)
				p.drawLine(QtCore.QPoint(x-margin,y), QtCore.QPoint(x-margin,y+lineHeight))

	def paintEvent(self, event):
		lineHeight=self.lineHeight
		margin=self.margin

		# OTHER VARS
		p=QtGui.QPainter(self)
		selRows=self.selRows
		width=self.width()
		if self.vScrollbar.isVisible():
			width-=self.scrollbarWidth

		if self.resizeColumn!=None:
			hdr=self.headers[self.resizeColumn][0]
			w=self.minHeaderWidth
			for song in self.songs:
				rect=p.boundingRect(10,10,1,1, QtCore.Qt.AlignLeft, str(song.getTag(hdr)))
				w=max(rect.width(), w)
			self.headers[self.resizeColumn][1]=w+2*margin
			self.resizeColumn=None
			self.resizeEvent(None)
		if self.redrawID!=None:
			y=lineHeight
			for row in xrange(self.topRow, min(self.fNumSongs, self.topRow+self.numRows)):
				if self.fSongs[row]._data['id']==self.redrawID:
					self._paintRow(p, row, y, width)
				y+=lineHeight

			self.redrawID=None
			return

		# paint the headers!
		p.fillRect(QtCore.QRect(0,0,width+self.vScrollbar.width(),lineHeight), QtGui.QBrush(QtCore.Qt.lightGray))
		p.drawRect(QtCore.QRect(0,0,width+self.vScrollbar.width()-1,lineHeight-1))
		x=margin+self.xOffset
		for hdr in self.headers:
			if hdr[2]:
				p.drawText(QtCore.QPoint(x, lineHeight-margin), hdr[0])
				x+=hdr[1]
				p.drawLine(QtCore.QPoint(x-margin,0), QtCore.QPoint(x-margin,lineHeight))

		if self.songs==None:
			return
		# fill the records!
		y=lineHeight
		for row in xrange(self.topRow, min(self.fNumSongs, self.topRow+self.numRows)):
			self._paintRow(p, row, y, width)
			y+=lineHeight
		if y<self.height():
			# if we're short on songs, draw up the remaining area in background color
			p.fillRect(QtCore.QRect(0,y,width,self.height()-y), QtGui.QBrush(self.clrBg))

		# draw a nice line around the widget!
		p.drawRect(QtCore.QRect(0,0,self.width()-1,self.height()-1))
		if self.hasFocus():
			p.drawRect(QtCore.QRect(1,1,self.width()-3,self.height()-3))
		else:
			p.setPen(QtCore.Qt.lightGray)
			p.drawRect(QtCore.QRect(1,1,self.width()-3,self.height()-3))

class Playlist(QtGui.QWidget):
	name=None
	txtFilter=None
	lstSongs=None
	headers=None
	winMain=None
	onKeyPress=None
	_timerID=None

	def __init__(self, parent, wMain, headers, name, onDoubleClick, onKeyPress):
		QtGui.QWidget.__init__(self, parent)
		
		self.name=name
		self.headers=headers
		self.winMain=wMain
		
		self.onKeyPress=onKeyPress
		
		self.txtFilter=QtGui.QLineEdit()
		self.lstSongs=SongList(parent, headers, onDoubleClick)
		
		frame=QtGui.QVBoxLayout()
		frame.addWidget(self.txtFilter)
		frame.addWidget(self.lstSongs)
		self.setLayout(frame)
		
		self.connect(self.txtFilter, QtCore.SIGNAL('textChanged(const QString&)'), self.txtFilterChange)
		self.connect(self.txtFilter, QtCore.SIGNAL('editingFinished()'), self.txtFilterQuit)
	
	_prevTxtFilter=None
	def timerEvent(self, event):
		if self.txtFilter.text()!=self._prevTxtFilter:
			self.filter()
	def keyPressEvent(self, event):
		self.onKeyPress(event)
	def txtFilterChange(self):
		if self._timerID==None:
			self._timerID=self.startTimer(500)
	def txtFilterQuit(self):
		if self._timerID:
			self.killTimer(self._timerID)
			self._timerID=None
	def update(self, songs):
		self.lstSongs.updateSongs(songs)
		if len(self.txtFilter.text()):
			self.filter()

	def selectedSongs(self):
		return self.lstSongs.selectedSongs()
	def selectedIds(self):
		return map(lambda song: song._data['id'], self.lstSongs.selectedSongs())
	def getSelItemID(self):
		try:
			return self.lstSongs.selectedSongs()[0].getID()
		except:
			return -1

	def filter(self):
		self.lstSongs.filter(str(self.txtFilter.text()).strip().lower())
	
	def colorID(self, id, clr):
		self.lstSongs.colorID(id, clr)
	
	def showColumn(self, column, show=True):
		self.lstSongs.showColumn(column, show)
	def selectRow(self, row):
		self.lstSongs.selectRow(row)
	def ensureVisible(self, id):
		self.lstSongs.ensureVisible(id)

class winMain(QtGui.QWidget):
	"Elements"
	" label with info"
	lblInfo=None
	" label with current status, at the bottom"
	lblStatus=None
	" lstLibrary of songs"
	lstLibrary=None
	" current lstPlaylist"
	lstPlaylist=None
	" slider for current time"
	slrTime=None
	" slider for volume"
	slrVolume=None
	" control buttons"
	btnPlayPause=None
	btnStop=None
	btnPrevious=None
	btnNext=None
	
	" system tray object"
	sysTray=None

	"Models"
	" model of the lstLibrary"
	mLibrary=None

	"Other vars"
	" array containing objects to disable/enable on disconnect/connect"
	disableObjects=None
	" current highlighted line"
	curLine=None
	_timerID=None

	def __init__(self, parent=None):
		QtGui.QWidget.__init__(self, parent)
		self.setWindowTitle("montypc - An MPD client")

		self.curLine=None

		" set GUI stuff"
		self.lstPlaylist=Playlist(parent, self, ['artist', 'title', 'album'], 'The Playlist'
				, self.onPlaylistDoubleClick, self.onPlaylistKeyPress)
		self.lstLibrary=Playlist(parent, self, ['song'], 'The Library'
				, self.onLibraryDoubleClick, self.onLibraryKeyPress)
		self.lblStatus=QtGui.QLabel()
		self.lblInfo=QtGui.QLabel()
		self.lblInfo.setMinimumWidth(400)
		self.txtFilterPlaylist=QtGui.QLineEdit()
		self.slrTime=QtGui.QSlider(QtCore.Qt.Horizontal, self)
		self.slrVolume=QtGui.QSlider(QtCore.Qt.Horizontal, self)
		self.slrVolume.setMaximum(100)
		self.slrVolume.setMinimumWidth(100)
		self.slrVolume.setMaximumWidth(400)
		self.btnPlayPause=Button("play", self.onBtnPlayPauseClick)
		self.btnStop=Button("stop", self.onBtnStopClick)
		self.btnPrevious=Button("prev", self.onBtnPreviousClick)
		self.btnNext=Button("next", self.onBtnNextClick)

		self.lstLibrary.showColumn(0,False)
		
		" set the layouts"
		window=QtGui.QVBoxLayout()
		tables=QtGui.QHBoxLayout()
		lib=QtGui.QVBoxLayout()
		plList=QtGui.QVBoxLayout()
		controls=QtGui.QHBoxLayout()
		info=QtGui.QHBoxLayout()
		self.setLayout(window)
		
		" add the widgets"
		window.addLayout(info)
		window.addLayout(controls)
		window.addLayout(tables)
		window.addWidget(self.lblStatus)
		tables.addWidget(self.lstLibrary)
		tables.addWidget(self.lstPlaylist)
		controls.addWidget(self.btnPrevious)
		controls.addWidget(self.btnPlayPause)
		controls.addWidget(self.btnStop)
		controls.addWidget(self.btnNext)
		controls.addWidget(self.slrTime)
		info.addWidget(self.lblInfo)
		info.addStretch()
		info.addWidget(self.slrVolume)

		self.resize(1024,960)

		self.disableObjects=[self.lstPlaylist, self.lstLibrary, self.slrTime
				, self.slrVolume
				, self.btnPlayPause, self.btnStop, self.btnPrevious
				, self.btnNext]

		" add event handlers"
		self.connect(self.slrVolume, QtCore.SIGNAL('valueChanged(int)'),
			self.onVolumeSliderChange)

		self.connect(self.slrTime, QtCore.SIGNAL('sliderReleased()'),
			self.onTimeSliderChange)

		monty.addListener('onSongChange', self.onSongChange)
		monty.addListener('onTimeChange', self.onTimeChange)
		monty.addListener('onStateChange', self.onStateChange)
		monty.addListener('onVolumeChange', self.onVolumeChange)
		monty.addListener('onReady', self.onReady)
		monty.addListener('onConnect', self.onConnect)
		monty.addListener('onDisconnect', self.onDisconnect)

		self.enableObjects(self.disableObjects, False)
		# set icon in system tray
		self.sysTray=QtGui.QSystemTrayIcon(QtGui.QIcon('gfx/icon.png'), parent)
		self.sysTray.show()
		self.connect(self.sysTray, QtCore.SIGNAL('activated (QSystemTrayIcon::ActivationReason)')
			, self.onSysTrayClick)

		wConnect=winConnect()
		wConnect.monitor()

		self.updatePlayingInfo()
		self.show()
		doEvents()


	
	def setStatus(self, status):
		self.lblStatus.setText(status)

	def updatePlayingInfo(self):
		status=monty.getStatus()
		curSong=monty.getCurrentSong()
		line=["Status:\t", "Song:\t", "Time:\t"]

		try:
			line[0]="%s%s"%(line[0], {'play':'playing', 'stop':'not playing', 'pause':'paused'}[status['state']])
			if status['state']!='stop':
				line[1]="%s%s by %s [%s]"% (line[1], curSong.getTitle(), curSong.getArtist(), curSong.getAlbum())
				line[2]="%s%s/%s" % (line[2], sec2min(self.slrTime.value()), sec2min(status['length']))
		except:
			pass
		# merge lines
		self.lblInfo.setText(reduce(lambda x, y: x+'\n'+y, line))

		self.sysTray.setToolTip("%s\n%s" % ('montypc', self.lblInfo.text()))

	_rowColorModifier=0
	_rowColorAdder=1
	def timerEvent(self, event):
		curSong=monty.getCurrentSong()
		if curSong:
			lst=self.lstPlaylist
			# color current playing song
			lst.colorID(curSong.getID(),
				QtGui.QColor(140-self._rowColorModifier*5,140-self._rowColorModifier*5,180))

			# make sure color changes nicely over time
			self._rowColorModifier=self._rowColorModifier+self._rowColorAdder
			if abs(self._rowColorModifier)>4:
				self._rowColorAdder=-1*self._rowColorAdder

	def addLibrarySelToPlaylist(self):
		paths=[]
		songs=self.lstLibrary.selectedSongs()
		cnt=len(songs)
		steps=5*cnt/100+1
		row=-1
		for song in songs:
			row+=1
			paths.append(song.getFilepath())

			if row % steps==0:
				self.setStatus('Adding '+str(cnt)+' songs to library ...'+str(int(100*row/cnt))+'%')
				doEvents()
		monty.addToPlaylist(paths)
		self.setStatus('')
		doEvents()
		self.fillPlaylist()

	def onSysTrayClick(self, reason):
		if self.isVisible():
			self.hide()
		else:
			self.show()

	def onPlaylistKeyPress(self, event):
		lst=self.lstPlaylist
		" remove selection from playlist using DELETE-key"
		if event.matches(QtGui.QKeySequence.Delete):
			ids=lst.selectedIds()
			self.setStatus('Deleting '+str(len(ids))+' songs from playlist ...')
			doEvents()

			monty.deleteFromPlaylist(ids)

			self.setStatus('')
			doEvents()

			self.fillPlaylist()
		return QtGui.QWidget.keyPressEvent(self, event)
	
	def onLibraryKeyPress(self, event):
		" add selection, or entire library to playlist using ENTER-key"
		if event.key()==QtCore.Qt.Key_Enter or event.key()==QtCore.Qt.Key_Return:
			self.addLibrarySelToPlaylist()
		return QtGui.QWidget.keyPressEvent(self, event)

	def enableObjects(self, objects, enable):
		for object in objects:
			object.setEnabled(enable)

	def onStateChange(self, params):
		self.updatePlayingInfo()
		newState=params['newState']

		self.enableObjects([self.slrTime, self.btnStop, self.btnNext, self.btnPrevious], newState!='stop')

		if newState=='play':
			self.btnPlayPause.setText('pause')
		elif newState=='pause' or newState=='stop':
			self.btnPlayPause.setText('play')

	def onTimeChange(self, params):
		self.updatePlayingInfo()
		if self.slrTime.isSliderDown()==False:
			self.slrTime.setValue(params['newTime'])

	def onSongChange(self, params):
		lst=self.lstPlaylist
		lst.colorID(int(params['newSongID']), clrRowSel)

		if params['newSongID']==-1:
			self.slrTime.setEnabled(False)
		else:
			try:
				self.slrTime.setMaximum(monty.getStatus()['length'])
				self.slrTime.setEnabled(True)
				lst.ensureVisible(params['newSongID'])
			except:
				pass
	
	def onVolumeChange(self, params):
		self.slrVolume.setValue(params['newVolume'])

	def onReady(self, params):
		self.initialiseData()
		self._timerID=self.startTimer(200)

	def onConnect(self, params):
		self.setStatus('Restoring library ...')
		doEvents()

	def initialiseData(self):
		self.setStatus("Retrieving library ...")
		doEvents()
		self.mLibrary=Library()
		doEvents()

		self.setStatus("Filling library ...")
		doEvents()
		self.fillLibrary()
		doEvents()
		
		self.setStatus("Filling playlist ...")
		doEvents()
		self.fillPlaylist()
		doEvents()
		
		self.setStatus("Doing the rest ...")
		doEvents()
		self.enableObjects(self.disableObjects, True)
		self.updatePlayingInfo()
		self.setStatus("")
		doEvents()

	
	def onDisconnect(self, params):
		self.enableObjects(self.disableObjects, False)


	def fillPlaylist(self):
		self.lstPlaylist.update(monty.listPlaylist())

	def fillLibrary(self):
		self.lstLibrary.update(self.mLibrary.list())
	
	def onLibraryDoubleClick(self):
		self.addLibrarySelToPlaylist()

	def onPlaylistDoubleClick(self):
		monty.play(self.lstPlaylist.getSelItemID())
	
	def onTimeSliderChange(self):
		monty.seek(self.slrTime.value())
	
	def onVolumeSliderChange(self):
		monty.setVolume(self.slrVolume.value())

	def onBtnPlayPauseClick(self):
		status=monty.getStatus()
		if status['state']=='play':
			monty.pause()
		elif status['state']=='stop':
			if self.lstPlaylist.getSelItemID()==-1:
				self.lstPlaylist.selectRow(0)
			self.onPlaylistDoubleClick()
		else:
			monty.resume()
		self.updatePlayingInfo()

	def onBtnStopClick(self):
		monty.stop()
		self.updatePlayingInfo()
	
	def onBtnPreviousClick(self):
		monty.previous()
		self.updatePlayingInfo()
	def onBtnNextClick(self):
		monty.next()
		self.updatePlayingInfo()