def buildsonglist(root,songfiles,player):

    songlist=tk.Frame(root,bd=2,relief='raised',bg='black')

    prefixlen=len(os.path.commonprefix(songfiles))

    # include to the last os.sep- dont crop path elements in the middle

    prefixlen=songfiles[0].rfind(os.sep)+1 

    maxsfwidth=max([len(x[prefixlen:]) for x in songfiles])

    for i,sf in enumerate(songfiles):

        b=tk.Button(songlist,text=sf[prefixlen:],width=maxsfwidth,

                    anchor='w',pady=0,bd=0,relief='flat',

        b.bind("<Configure>",lambda ev,b=b:

        try:

            # rainbow colors

            frac=i/len(songfiles)

            b.config(bg='black',

                     fg="#%02x%02x%02x" % tuple([int(255*(.7+.3*

                                                          math.sin(frac*4+x))

                                                     ) for x in 1,2,3]))

        except Exception,e:

            print "rainbow failed: %s"%e

        b.config(command=lambda sf=sf: player.play(sf))

        b.pack(side='top',fill='both',exp=1,padx=0,pady=0,ipadx=0,ipady=0)

            else:

                button['bg'] = 'black'

############################

parser=OptionParser()

(options,songfiles)=parser.parse_args()

if len(songfiles)<1:

    songfiles = [f for f in os.listdir(showconfig.musicDir())

                 if f.endswith('wav')]

root=tk.Tk()

root.wm_title("ascoltami")

root.config(bg="black")

player=Player(None,None)

songlist = buildsonglist(root,songfiles,player)

songlist.pack(fill='both',exp=1)

f2 = tk.Frame(bg='black')

buts = ControlButtons(f2)

buts.pack(side='top',fill='x')

player.state.trace_variable('w', buts.update_state_buttons)

buts.update_state_buttons()