#!/usr/bin/env python

import wx
import dbg

def wrap( lsts, border=4 ):
	vsz = wx.BoxSizer(wx.VERTICAL)
	for lst in lsts:
		hsz = wx.BoxSizer(wx.HORIZONTAL)
		for o in lst:
			flag = wx.LEFT | ( wx.RIGHT if o == lst[-1] else 0 )
			hsz.Add(o, 0, flag, border)
		flag = wx.TOP | ( wx.BOTTOM if lst == lsts[-1] else 0 )
		vsz.Add( hsz, 0, flag, border )
	return vsz

def init(app, title):
	frame = wx.Frame(None, wx.ID_ANY, title)

	play_lbs = ( ' Play |>', ' Play <|', 'Pause ||' )
	btn_play = wx.ToggleButton( frame, wx.ID_ANY, play_lbs[0] )
	lb_pause = play_lbs[-1]
	is_play = lambda : btn_play.GetValue()

	cbox_reverse = wx.CheckBox( frame, wx.ID_ANY, 'reverse' )
	is_reverse = lambda : cbox_reverse.GetValue()

	speed_lbs = ('x4', 'x2', 'x1', 'x0.5')
	menu_speed = wx.Choice( frame, wx.ID_ANY, choices=speed_lbs )
	#menu_speed.SetSelection(2)
	menu_speed.SetStringSelection('x1')
	shifts = (2, 1, 0, -1)
	get_shift = lambda : shifts[ menu_speed.GetSelection() ]

	def lb_update():
		lb = lb_pause if is_play() else play_lbs[ 1 if is_reverse() else 0 ]
		btn_play.SetLabel(lb)

	def hdl(evt):
		o = evt.GetEventObject()
		if o in ( btn_play, cbox_reverse ):
			lb_update()
		s = ''
		if o == btn_play:
			s = 'snd.{}()'.format( 'start' if is_play() else 'stop' )
		elif o == cbox_reverse:
			s = 'snd.reverse={}'.format( o.GetValue() )
		elif o == menu_speed:
			s = 'snd.shift={}'.format( get_shift() )

		if o in (cbox_reverse, menu_speed) and is_play():
			s = '\n'.join( ( 'snd.stop()', s, 'snd.start()' ) )
		if s:
			dbg.out(s)

	frame.Bind( wx.EVT_TOGGLEBUTTON, hdl, btn_play )
	frame.Bind( wx.EVT_CHECKBOX, hdl, cbox_reverse )
	frame.Bind( wx.EVT_CHOICE, hdl, menu_speed )

	szr = wrap( [ (btn_play, cbox_reverse, menu_speed) ] )
	frame.SetSizer(szr)
	frame.Layout()
	frame.Fit()
	app.SetTopWindow(frame)
	frame.Show()

def wx_run(title=''):
	class MyApp(wx.App):
		def OnInit(self):
			init(self, title)
			return 1
	MyApp(0).MainLoop()

if __name__ == "__main__":
	wx_run('snd')
# EOF