summaryrefslogtreecommitdiffstats
path: root/Lib/lib-tk/Tkinter.py
blob: de081ecf1bed49c4cf8cdae4185e95f90c6fc6a8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
# Tkinter.py -- Tk/Tcl widget wrappers

import tkinter
from tkinter import TclError

class _Dummy:
	def meth(self):	return

def _func():
	pass

FunctionType = type(_func)
ClassType = type(_Dummy)
MethodType = type(_Dummy.meth)
StringType = type('')
TupleType = type(())
ListType = type([])
DictionaryType = type({})
NoneType = type(None)
CallableTypes = (FunctionType, MethodType)

def _flatten(tuple):
	res = ()
	for item in tuple:
		if type(item) in (TupleType, ListType):
			res = res + _flatten(item)
		else:
			res = res + (item,)
	return res

def _cnfmerge(cnfs):
	if type(cnfs) in (NoneType, DictionaryType, StringType):
		return cnfs
	else:
		cnf = {}
		for c in _flatten(cnfs):
			for k, v in c.items():
				cnf[k] = v
		return cnf

class Event:
	pass

_default_root = None

def _tkerror(err):
	pass

def _exit(code='0'):
	import sys
	sys.exit(getint(code))

_varnum = 0
class Variable:
	def __init__(self, master=None):
		global _default_root
		global _varnum
		if master:
			self._tk = master.tk
		else:
			self._tk = _default_root.tk
		self._name = 'PY_VAR' + `_varnum`
		_varnum = _varnum + 1
	def __del__(self):
		self._tk.unsetvar(self._name)
	def __str__(self):
		return self._name
	def __call__(self, value=None):
		if value == None:
			return self.get()
		else:
			self.set(value)
	def set(self, value):
		return self._tk.setvar(self._name, value)

class StringVar(Variable):
	def __init__(self, master=None):
		Variable.__init__(self, master)
	def get(self):
		return self._tk.getvar(self._name)

class IntVar(Variable):
	def __init__(self, master=None):
		Variable.__init__(self, master)
	def get(self):
		return self._tk.getint(self._tk.getvar(self._name))

class DoubleVar(Variable):
	def __init__(self, master=None):
		Variable.__init__(self, master)
	def get(self):
		return self._tk.getdouble(self._tk.getvar(self._name))

class BooleanVar(Variable):
	def __init__(self, master=None):
		Variable.__init__(self, master)
	def get(self):
		return self._tk.getboolean(self._tk.getvar(self._name))

def mainloop():
	_default_root.tk.mainloop()

def getint(s):
	return _default_root.tk.getint(s)

def getdouble(s):
	return _default_root.tk.getdouble(s)

def getboolean(s):
	return _default_root.tk.getboolean(s)

class Misc:
	def tk_strictMotif(self, boolean=None):
		return self.tk.getboolean(self.tk.call(
			'set', 'tk_strictMotif', boolean))
	def tk_menuBar(self, *args):
		apply(self.tk.call, ('tk_menuBar', self._w) + args)
	def wait_variable(self, name='PY_VAR'):
		self.tk.call('tkwait', 'variable', name)
	waitvar = wait_variable # XXX b/w compat
	def wait_window(self, window=None):
		if window == None:
			window = self
		self.tk.call('tkwait', 'window', window._w)
	def wait_visibility(self, window=None):
		if window == None:
			window = self
		self.tk.call('tkwait', 'visibility', window._w)
	def setvar(self, name='PY_VAR', value='1'):
		self.tk.setvar(name, value)
	def getvar(self, name='PY_VAR'):
		return self.tk.getvar(name)
	def getint(self, s):
		return self.tk.getint(s)
	def getdouble(self, s):
		return self.tk.getdouble(s)
	def getboolean(self, s):
		return self.tk.getboolean(s)
	def focus_set(self):
		self.tk.call('focus', self._w)
	focus = focus_set # XXX b/w compat?
	def focus_default_set(self):
		self.tk.call('focus', 'default', self._w)
	def focus_default_none(self):
		self.tk.call('focus', 'default', 'none')
	focus_default = focus_default_set
	def focus_none(self):
		self.tk.call('focus', 'none')
	def focus_get(self):
		name = self.tk.call('focus')
		if name == 'none': return None
		return self._nametowidget(name)
	def after(self, ms, func=None, *args):
		if not func:
			self.tk.call('after', ms)
		else:
			# XXX Disgusting hack to clean up after calling func
			tmp = []
			def callit(func=func, args=args, tk=self.tk, tmp=tmp):
				try:
					apply(func, args)
				finally:
					tk.deletecommand(tmp[0])
			name = self._register(callit)
			tmp.append(name)
			self.tk.call('after', ms, name)
	# XXX grab current w/o window argument
	def grab_current(self):
		name = self.tk.call('grab', 'current', self._w)
		if not name: return None
		return self._nametowidget(name)
	def grab_release(self):
		self.tk.call('grab', 'release', self._w)
	def grab_set(self):
		self.tk.call('grab', 'set', self._w)
	def grab_set_global(self):
		self.tk.call('grab', 'set', '-global', self._w)
	def grab_status(self):
		status = self.tk.call('grab', 'status', self._w)
		if status == 'none': status = None
		return status
	def lower(self, belowThis=None):
		self.tk.call('lower', self._w, belowThis)
	def option_add(self, pattern, value, priority = None):
		self.tk.call('option', 'add', pattern, priority)
	def option_clear(self):
		self.tk.call('option', 'clear')
	def option_get(self, name, className):
		return self.tk.call('option', 'get', self._w, name, className)
	def option_readfile(self, fileName, priority = None):
		self.tk.call('option', 'readfile', fileName, priority)
	def selection_clear(self):
		self.tk.call('selection', 'clear', self._w)
	def selection_get(self, type=None):
		return self.tk.call('selection', 'get', type)
	def selection_handle(self, func, type=None, format=None):
		name = self._register(func)
		self.tk.call('selection', 'handle', self._w, 
			     name, type, format)
	def selection_own(self, func=None):
		name = self._register(func)
		self.tk.call('selection', 'own', self._w, name)
	def selection_own_get(self):
		return self._nametowidget(self.tk.call('selection', 'own'))
	def send(self, interp, cmd, *args):
		return apply(self.tk.call, ('send', interp, cmd) + args)
	def lower(self, belowThis=None):
		self.tk.call('lift', self._w, belowThis)
	def tkraise(self, aboveThis=None):
		self.tk.call('raise', self._w, aboveThis)
	lift = tkraise
	def colormodel(self, value=None):
		return self.tk.call('tk', 'colormodel', self._w, value)
	def winfo_atom(self, name):
		return self.tk.getint(self.tk.call('winfo', 'atom', name))
	def winfo_atomname(self, id):
		return self.tk.call('winfo', 'atomname', id)
	def winfo_cells(self):
		return self.tk.getint(
			self.tk.call('winfo', 'cells', self._w))
	def winfo_children(self):
		return map(self._nametowidget,
			   self.tk.splitlist(self.tk.call(
				   'winfo', 'children', self._w)))
	def winfo_class(self):
		return self.tk.call('winfo', 'class', self._w)
	def winfo_containing(self, rootX, rootY):
		return self.tk.call('winfo', 'containing', rootx, rootY)
	def winfo_depth(self):
		return self.tk.getint(self.tk.call('winfo', 'depth', self._w))
	def winfo_exists(self):
		return self.tk.getint(
			self.tk.call('winfo', 'exists', self._w))
	def winfo_fpixels(self, number):
		return self.tk.getdouble(self.tk.call(
			'winfo', 'fpixels', self._w, number))
	def winfo_geometry(self):
		return self.tk.call('winfo', 'geometry', self._w)
	def winfo_height(self):
		return self.tk.getint(
			self.tk.call('winfo', 'height', self._w))
	def winfo_id(self):
		return self.tk.getint(
			self.tk.call('winfo', 'id', self._w))
	def winfo_interps(self):
		return self.tk.splitlist(
			self.tk.call('winfo', 'interps'))
	def winfo_ismapped(self):
		return self.tk.getint(
			self.tk.call('winfo', 'ismapped', self._w))
	def winfo_name(self):
		return self.tk.call('winfo', 'name', self._w)
	def winfo_parent(self):
		return self.tk.call('winfo', 'parent', self._w)
	def winfo_pathname(self, id):
		return self.tk.call('winfo', 'pathname', id)
	def winfo_pixels(self, number):
		return self.tk.getint(
			self.tk.call('winfo', 'pixels', self._w, number))
	def winfo_reqheight(self):
		return self.tk.getint(
			self.tk.call('winfo', 'reqheight', self._w))
	def winfo_reqwidth(self):
		return self.tk.getint(
			self.tk.call('winfo', 'reqwidth', self._w))
	def winfo_rgb(self, color):
		return self._getints(
			self.tk.call('winfo', 'rgb', self._w, color))
	def winfo_rootx(self):
		return self.tk.getint(
			self.tk.call('winfo', 'rootx', self._w))
	def winfo_rooty(self):
		return self.tk.getint(
			self.tk.call('winfo', 'rooty', self._w))
	def winfo_screen(self):
		return self.tk.call('winfo', 'screen', self._w)
	def winfo_screencells(self):
		return self.tk.getint(
			self.tk.call('winfo', 'screencells', self._w))
	def winfo_screendepth(self):
		return self.tk.getint(
			self.tk.call('winfo', 'screendepth', self._w))
	def winfo_screenheight(self):
		return self.tk.getint(
			self.tk.call('winfo', 'screenheight', self._w))
	def winfo_screenmmheight(self):
		return self.tk.getint(
			self.tk.call('winfo', 'screenmmheight', self._w))
	def winfo_screenmmwidth(self):
		return self.tk.getint(
			self.tk.call('winfo', 'screenmmwidth', self._w))
	def winfo_screenvisual(self):
		return self.tk.call('winfo', 'screenvisual', self._w)
	def winfo_screenwidth(self):
		return self.tk.getint(
			self.tk.call('winfo', 'screenwidth', self._w))
	def winfo_toplevel(self):
		return self._nametowidget(self.tk.call(
			'winfo', 'toplevel', self._w))
	def winfo_visual(self):
		return self.tk.call('winfo', 'visual', self._w)
	def winfo_vrootheight(self):
		return self.tk.getint(
			self.tk.call('winfo', 'vrootheight', self._w))
	def winfo_vrootwidth(self):
		return self.tk.getint(
			self.tk.call('winfo', 'vrootwidth', self._w))
	def winfo_vrootx(self):
		return self.tk.getint(
			self.tk.call('winfo', 'vrootx', self._w))
	def winfo_vrooty(self):
		return self.tk.getint(
			self.tk.call('winfo', 'vrooty', self._w))
	def winfo_width(self):
		return self.tk.getint(
			self.tk.call('winfo', 'width', self._w))
	def winfo_x(self):
		return self.tk.getint(
			self.tk.call('winfo', 'x', self._w))
	def winfo_y(self):
		return self.tk.getint(
			self.tk.call('winfo', 'y', self._w))
	def update(self):
		self.tk.call('update')
	def update_idletasks(self):
		self.tk.call('update', 'idletasks')
	def unbind(self, sequence):
		self.tk.call('bind', self._w, sequence, '')
	def bind(self, sequence, func, add=''):
		if add: add = '+'
		name = self._register(func, self._substitute)
		self.tk.call('bind', self._w, sequence, 
			     (add + name,) + self._subst_format)
	def bind_all(self, sequence, func, add=''):
		if add: add = '+'
		name = self._register(func, self._substitute)
		self.tk.call('bind', 'all' , sequence, 
			     (add + name,) + self._subst_format)
	def bind_class(self, className, sequence, func, add=''):
		if add: add = '+'
		name = self._register(func, self._substitute)
		self.tk.call('bind', className , sequence, 
			     (add + name,) + self._subst_format)
	def mainloop(self):
		self.tk.mainloop()
	def quit(self):
		self.tk.quit()
	def _getints(self, string):
		if not string: return None
		res = ()
		for v in self.tk.splitlist(string):
			res = res +  (self.tk.getint(v),)
		return res
	def _getboolean(self, string):
		if string:
			return self.tk.getboolean(string)
	def _options(self, cnf):
		cnf = _cnfmerge(cnf)
		res = ()
		for k, v in cnf.items():
			if type(v) in CallableTypes:
				v = self._register(v)
			res = res + ('-'+k, v)
		return res
	def _nametowidget(self, name):
		w = self
		if name[0] == '.':
			w = w._root()
			name = name[1:]
		from string import find
		while name:
			i = find(name, '.')
			if i >= 0:
				name, tail = name[:i], name[i+1:]
			else:
				tail = ''
			w = w.children[name]
			name = tail
		return w
	def _register(self, func, subst=None):
		f = _CallSafely(func, subst).__call__
		name = `id(f)`
		if hasattr(func, 'im_func'):
			func = func.im_func
		if hasattr(func, 'func_name') and \
		   type(func.func_name) == type(''):
			name = name + func.func_name
		self.tk.createcommand(name, f)
		return name
	register = _register
	def _root(self):
		w = self
		while w.master: w = w.master
		return w
	_subst_format = ('%#', '%b', '%f', '%h', '%k', 
			 '%s', '%t', '%w', '%x', '%y',
			 '%A', '%E', '%K', '%N', '%W', '%T', '%X', '%Y')
	def _substitute(self, *args):
		tk = self.tk
		if len(args) != len(self._subst_format): return args
		nsign, b, f, h, k, s, t, w, x, y, A, E, K, N, W, T, X, Y = args
		# Missing: (a, c, d, m, o, v, B, R)
		e = Event()
		e.serial = tk.getint(nsign)
		e.num = tk.getint(b)
		try: e.focus = tk.getboolean(f)
		except TclError: pass
		e.height = tk.getint(h)
		e.keycode = tk.getint(k)
		e.state = tk.getint(s)
		e.time = tk.getint(t)
		e.width = tk.getint(w)
		e.x = tk.getint(x)
		e.y = tk.getint(y)
		e.char = A
		try: e.send_event = tk.getboolean(E)
		except TclError: pass
		e.keysym = K
		e.keysym_num = tk.getint(N)
		e.type = T
		e.widget = self._nametowidget(W)
		e.x_root = tk.getint(X)
		e.y_root = tk.getint(Y)
		return (e,)

class _CallSafely:
	def __init__(self, func, subst=None):
		self.func = func
		self.subst = subst
	def __call__(self, *args):
		if self.subst:
			args = self.apply_func(self.subst, args)
		args = self.apply_func(self.func, args)
	def apply_func(self, func, args):
		import sys
		try:
			return apply(func, args)
		except SystemExit, msg:
			raise SystemExit, msg
		except:
			try:
				try:
					t = sys.exc_traceback
					while t:
						sys.stderr.write(
							'  %s, line %s\n' %
							(t.tb_frame.f_code,
							 t.tb_lineno))
						t = t.tb_next
				finally:
					sys.stderr.write('%s: %s\n' %
							 (sys.exc_type,
							  sys.exc_value))
				(sys.last_type,
				 sys.last_value,
				 sys.last_traceback) = (sys.exc_type,
							sys.exc_value,
							sys.exc_traceback)
				import pdb
				pdb.pm()
			except:
				print '*** Error in error handling ***'
				print sys.exc_type, ':', sys.exc_value

class Wm:
	def aspect(self, 
		   minNumer=None, minDenom=None, 
		   maxNumer=None, maxDenom=None):
		return self._getints(
			self.tk.call('wm', 'aspect', self._w, 
				     minNumer, minDenom, 
				     maxNumer, maxDenom))
	def client(self, name=None):
		return self.tk.call('wm', 'client', self._w, name)
	def command(self, value=None):
		return self.tk.call('wm', 'command', self._w, value)
	def deiconify(self):
		return self.tk.call('wm', 'deiconify', self._w)
	def focusmodel(self, model=None):
		return self.tk.call('wm', 'focusmodel', self._w, model)
	def frame(self):
		return self.tk.call('wm', 'frame', self._w)
	def geometry(self, newGeometry=None):
		return self.tk.call('wm', 'geometry', self._w, newGeometry)
	def grid(self,
		 baseWidht=None, baseHeight=None, 
		 widthInc=None, heightInc=None):
		return self._getints(self.tk.call(
			'wm', 'grid', self._w,
			baseWidht, baseHeight, widthInc, heightInc))
	def group(self, pathName=None):
		return self.tk.call('wm', 'group', self._w, pathName)
	def iconbitmap(self, bitmap=None):
		return self.tk.call('wm', 'iconbitmap', self._w, bitmap)
	def iconify(self):
		return self.tk.call('wm', 'iconify', self._w)
	def iconmask(self, bitmap=None):
		return self.tk.call('wm', 'iconmask', self._w, bitmap)
	def iconname(self, newName=None):
		return self.tk.call('wm', 'iconname', self._w, newName)
	def iconposition(self, x=None, y=None):
		return self._getints(self.tk.call(
			'wm', 'iconposition', self._w, x, y))
	def iconwindow(self, pathName=None):
		return self.tk.call('wm', 'iconwindow', self._w, pathName)
	def maxsize(self, width=None, height=None):
		return self._getints(self.tk.call(
			'wm', 'maxsize', self._w, width, height))
	def minsize(self, width=None, height=None):
		return self._getints(self.tk.call(
			'wm', 'minsize', self._w, width, height))
	def overrideredirect(self, boolean=None):
		return self._getboolean(self.tk.call(
			'wm', 'overrideredirect', self._w, boolean))
	def positionfrom(self, who=None):
		return self.tk.call('wm', 'positionfrom', self._w, who)
	def protocol(self, name=None, func=None):
		if type(func) in CallableTypes:
			command = self._register(func)
		else:
			command = func
		return self.tk.call(
			'wm', 'protocol', self._w, name, command)
	def sizefrom(self, who=None):
		return self.tk.call('wm', 'sizefrom', self._w, who)
	def state(self):
		return self.tk.call('wm', 'state', self._w)
	def title(self, string=None):
		return self.tk.call('wm', 'title', self._w, string)
	def transient(self, master=None):
		return self.tk.call('wm', 'transient', self._w, master)
	def withdraw(self):
		return self.tk.call('wm', 'withdraw', self._w)

class Tk(Misc, Wm):
	_w = '.'
	def __init__(self, screenName=None, baseName=None, className='Tk'):
		self.master = None
		self.children = {}
		if baseName is None:
			import sys, os
			baseName = os.path.basename(sys.argv[0])
			if baseName[-3:] == '.py': baseName = baseName[:-3]
		self.tk = tkinter.create(screenName, baseName, className)
		self.tk.createcommand('tkerror', _tkerror)
		self.tk.createcommand('exit', _exit)
		self.readprofile(baseName, className)
	def destroy(self):
		for c in self.children.values(): c.destroy()
		self.tk.call('destroy', self._w)
	def __str__(self):
		return self._w
	def readprofile(self, baseName, className):
		import os
		if os.environ.has_key('HOME'): home = os.environ['HOME']
		else: home = os.curdir
		class_tcl = os.path.join(home, '.%s.tcl' % className)
		class_py = os.path.join(home, '.%s.py' % className)
		base_tcl = os.path.join(home, '.%s.tcl' % baseName)
		base_py = os.path.join(home, '.%s.py' % baseName)
		dir = {'self': self}
		exec 'from Tkinter import *' in dir
		if os.path.isfile(class_tcl):
			print 'source', `class_tcl`
			self.tk.call('source', class_tcl)
		if os.path.isfile(class_py):
			print 'execfile', `class_py`
			execfile(class_py, dir)
		if os.path.isfile(base_tcl):
			print 'source', `base_tcl`
			self.tk.call('source', base_tcl)
		if os.path.isfile(base_py):
			print 'execfile', `base_py`
			execfile(base_py, dir)

class Pack:
	def config(self, cnf={}):
		apply(self.tk.call, 
		      ('pack', 'configure', self._w) 
		      + self._options(cnf))
	pack = config
	def __setitem__(self, key, value):
		Pack.config({key: value})
	def forget(self):
		self.tk.call('pack', 'forget', self._w)
	def newinfo(self):
		words = self.tk.splitlist(
			self.tk.call('pack', 'newinfo', self._w))
		dict = {}
		for i in range(0, len(words), 2):
			key = words[i][1:]
			value = words[i+1]
			if value[0] == '.':
				value = self._nametowidget(value)
			dict[key] = value
		return dict
	info = newinfo
	def propagate(self, boolean=None):
		if boolean:
			self.tk.call('pack', 'propagate', self._w)
		else:
			return self._getboolean(self.tk.call(
				'pack', 'propagate', self._w))
	def slaves(self):
		return map(self._nametowidget,
			   self.tk.splitlist(
				   self.tk.call('pack', 'slaves', self._w)))

class Place:
	def config(self, cnf={}):
		apply(self.tk.call, 
		      ('place', 'configure', self._w) 
		      + self._options(cnf))
	place = config
	def __setitem__(self, key, value):
		Place.config({key: value})
	def forget(self):
		self.tk.call('place', 'forget', self._w)
	def info(self):
		return self.tk.call('place', 'info', self._w)
	def slaves(self):
		return map(self._nametowidget,
			   self.tk.splitlist(
				   self.tk.call(
					   'place', 'slaves', self._w)))

class Widget(Misc, Pack, Place):
	def _setup(self, master, cnf):
		global _default_root
		if not master:
			if not _default_root:
				_default_root = Tk()
			master = _default_root
		if not _default_root:
			_default_root = master
		self.master = master
		self.tk = master.tk
		if cnf.has_key('name'):
			name = cnf['name']
			del cnf['name']
		else:
			name = `id(self)`
		self._name = name
		if master._w=='.':
			self._w = '.' + name
		else:
			self._w = master._w + '.' + name
		self.children = {}
		if self.master.children.has_key(self._name):
			self.master.children[self._name].destroy()
		self.master.children[self._name] = self
	def __init__(self, master, widgetName, cnf={}, extra=()):
		cnf = _cnfmerge(cnf)
		Widget._setup(self, master, cnf)
		self.widgetName = widgetName
		apply(self.tk.call, (widgetName, self._w) + extra)
		if cnf:
			Widget.config(self, cnf)
	def config(self, cnf=None):
		cnf = _cnfmerge(cnf)
		if cnf is None:
			cnf = {}
			for x in self.tk.split(
				self.tk.call(self._w, 'configure')):
				cnf[x[0][1:]] = (x[0][1:],) + x[1:]
			return cnf
		if type(cnf) == StringType:
			x = self.tk.split(self.tk.call(
				self._w, 'configure', '-'+cnf))
			return (x[0][1:],) + x[1:]
		for k in cnf.keys():
			if type(k) == ClassType:
				k.config(self, cnf[k])
				del cnf[k]
		apply(self.tk.call, (self._w, 'configure')
		      + self._options(cnf))
	def __getitem__(self, key):
		v = self.tk.splitlist(self.tk.call(
			self._w, 'configure', '-' + key))
		return v[4]
	def __setitem__(self, key, value):
		Widget.config(self, {key: value})
	def keys(self):
		return map(lambda x: x[0][1:],
			   self.tk.split(self.tk.call(self._w, 'configure')))
	def __str__(self):
		return self._w
	def destroy(self):
		for c in self.children.values(): c.destroy()
		if self.master.children.has_key(self._name):
			del self.master.children[self._name]
		self.tk.call('destroy', self._w)
	def _do(self, name, args=()):
		return apply(self.tk.call, (self._w, name) + args) 

class Toplevel(Widget, Wm):
	def __init__(self, master=None, cnf={}):
		extra = ()
		if cnf.has_key('screen'):
			extra = ('-screen', cnf['screen'])
			del cnf['screen']
		if cnf.has_key('class'):
			extra = extra + ('-class', cnf['class'])
			del cnf['class']
		Widget.__init__(self, master, 'toplevel', cnf, extra)
		root = self._root()
		self.iconname(root.iconname())
		self.title(root.title())

class Button(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'button', cnf)
	def tk_butEnter(self, *dummy):
		self.tk.call('tk_butEnter', self._w)
	def tk_butLeave(self, *dummy):
		self.tk.call('tk_butLeave', self._w)
	def tk_butDown(self, *dummy):
		self.tk.call('tk_butDown', self._w)
	def tk_butUp(self, *dummy):
		self.tk.call('tk_butUp', self._w)
	def flash(self):
		self.tk.call(self._w, 'flash')
	def invoke(self):
		self.tk.call(self._w, 'invoke')

# Indices:
def AtEnd():
	return 'end'
def AtInsert(*args):
	s = 'insert'
	for a in args:
		if a: s = s + (' ' + a)
	return s
def AtSelFirst():
	return 'sel.first'
def AtSelLast():
	return 'sel.last'
def At(x, y=None):
	if y is None:
		return '@' + `x`		
	else:
		return '@' + `x` + ',' + `y`

class Canvas(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'canvas', cnf)
	def addtag(self, *args):
		self._do('addtag', args)
	def addtag_above(self, tagOrId):
		self.addtag('above', tagOrId)
	def addtag_all(self):
		self.addtag('all')
	def addtag_below(self, tagOrId):
		self.addtag('below', tagOrId)
	def addtag_closest(self, x, y, halo=None, start=None):
		self.addtag('closest', x, y, halo, start)
	def addtag_enclosed(self, x1, y1, x2, y2):
		self.addtag('enclosed', x1, y1, x2, y2)
	def addtag_overlapping(self, x1, y1, x2, y2):
		self.addtag('overlapping', x1, y1, x2, y2)
	def addtag_withtag(self, tagOrId):
		self.addtag('withtag', tagOrId)
	def bbox(self, *args):
		return self._getints(self._do('bbox', args)) or None
	def tag_unbind(self, tagOrId, sequence):
		self.tk.call(self._w, 'bind', tagOrId, sequence, '')
	def tag_bind(self, tagOrId, sequence, func, add=''):
		if add: add='+'
		name = self._register(func, self._substitute)
		self.tk.call(self._w, 'bind', tagOrId, sequence, 
			     (add + name,) + self._subst_format)
	def canvasx(self, screenx, gridspacing=None):
		return self.tk.getint(self.tk.call(
			self._w, 'canvasx', screenx, gridspacing))
	def canvasy(self, screeny, gridspacing=None):
		return self.tk.getint(self.tk.call(
			self._w, 'canvasy', screeny, gridspacing))
	def coords(self, *args):
		return self._do('coords', args)
	def _create(self, itemType, args): # Args: (value, value, ..., cnf={})
		args = _flatten(args)
		cnf = args[-1]
		if type(cnf) in (DictionaryType, TupleType):
			args = args[:-1]
		else:
			cnf = {}
		return self.tk.getint(apply(
			self.tk.call,
			(self._w, 'create', itemType) 
			+ args + self._options(cnf)))
	def create_arc(self, *args):
		return Canvas._create(self, 'arc', args)
	def create_bitmap(self, *args):
		return Canvas._create(self, 'bitmap', args)
	def create_line(self, *args):
		return Canvas._create(self, 'line', args)
	def create_oval(self, *args):
		return Canvas._create(self, 'oval', args)
	def create_polygon(self, *args):
		return Canvas._create(self, 'polygon', args)
	def create_rectangle(self, *args):
		return Canvas._create(self, 'rectangle', args)
	def create_text(self, *args):
		return Canvas._create(self, 'text', args)
	def create_window(self, *args):
		return Canvas._create(self, 'window', args)
	def dchars(self, *args):
		self._do('dchars', args)
	def delete(self, *args):
		self._do('delete', args)
	def dtag(self, *args):
		self._do('dtag', args)
	def find(self, *args):
		return self._getints(self._do('find', args))
	def find_above(self, tagOrId):
		return self.find('above', tagOrId)
	def find_all(self):
		return self.find('all')
	def find_below(self, tagOrId):
		return self.find('below', tagOrId)
	def find_closest(self, x, y, halo=None, start=None):
		return self.find('closest', x, y, halo, start)
	def find_enclosed(self, x1, y1, x2, y2):
		return self.find('enclosed', x1, y1, x2, y2)
	def find_overlapping(self, x1, y1, x2, y2):
		return self.find('overlapping', x1, y1, x2, y2)
	def find_withtag(self, tagOrId):
		return self.find('withtag', tagOrId)
	def focus(self, *args):
		return self._do('focus', args)
	def gettags(self, *args):
		return self.tk.splitlist(self._do('gettags', args))
	def icursor(self, *args):
		self._do('icursor', args)
	def index(self, *args):
		return self.tk.getint(self._do('index', args))
	def insert(self, *args):
		self._do('insert', args)
	def itemconfig(self, tagOrId, cnf=None):
		if cnf is None:
			cnf = {}
			for x in self.tk.split(
				self._do('itemconfigure', (tagOrId))):
				cnf[x[0][1:]] = (x[0][1:],) + x[1:]
			return cnf
		if type(cnf) == StringType:
			x = self.tk.split(self._do('itemconfigure',
						   (tagOrId, '-'+cnf,)))
			return (x[0][1:],) + x[1:]
		self._do('itemconfigure', (tagOrId,) + self._options(cnf))
	def lower(self, *args):
		self._do('lower', args)
	def move(self, *args):
		self._do('move', args)
	def postscript(self, cnf={}):
		return self._do('postscript', self._options(cnf))
	def tkraise(self, *args):
		self._do('raise', args)
	lift = tkraise
	def scale(self, *args):
		self._do('scale', args)
	def scan_mark(self, x, y):
		self.tk.call(self._w, 'scan', 'mark', x, y)
	def scan_dragto(self, x, y):
		self.tk.call(self._w, 'scan', 'dragto', x, y)
	def select_adjust(self, tagOrId, index):
		self.tk.call(self._w, 'select', 'adjust', tagOrId, index)
	def select_clear(self):
		self.tk.call(self._w, 'select', 'clear')
	def select_from(self, tagOrId, index):
		self.tk.call(self._w, 'select', 'from', tagOrId, index)
	def select_item(self):
		self.tk.call(self._w, 'select', 'item')
	def select_to(self, tagOrId, index):
		self.tk.call(self._w, 'select', 'to', tagOrId, index)
	def type(self, tagOrId):
		return self.tk.call(self._w, 'type', tagOrId) or None
	def xview(self, index):
		self.tk.call(self._w, 'xview', index)
	def yview(self, index):
		self.tk.call(self._w, 'yview', index)

class Checkbutton(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'checkbutton', cnf)
	def deselect(self):
		self.tk.call(self._w, 'deselect')
	def flash(self):
		self.tk.call(self._w, 'flash')
	def invoke(self):
		self.tk.call(self._w, 'invoke')
	def select(self):
		self.tk.call(self._w, 'select')
	def toggle(self):
		self.tk.call(self._w, 'toggle')

class Entry(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'entry', cnf)
	def tk_entryBackspace(self):
		self.tk.call('tk_entryBackspace', self._w)
	def tk_entryBackword(self):
		self.tk.call('tk_entryBackword', self._w)
	def tk_entrySeeCaret(self):
		self.tk.call('tk_entrySeeCaret', self._w)
	def delete(self, first, last=None):
		self.tk.call(self._w, 'delete', first, last)
	def get(self):
		return self.tk.call(self._w, 'get')
	def icursor(self, index):
		self.tk.call(self._w, 'icursor', index)
	def index(self, index):
		return self.tk.getint(self.tk.call(
			self._w, 'index', index))
	def insert(self, index, string):
		self.tk.call(self._w, 'insert', index, string)
	def scan_mark(self, x):
		self.tk.call(self._w, 'scan', 'mark', x)
	def scan_dragto(self, x):
		self.tk.call(self._w, 'scan', 'dragto', x)
	def select_adjust(self, index):
		self.tk.call(self._w, 'select', 'adjust', index)
	def select_clear(self):
		self.tk.call(self._w, 'select', 'clear')
	def select_from(self, index):
		self.tk.call(self._w, 'select', 'from', index)
	def select_to(self, index):
		self.tk.call(self._w, 'select', 'to', index)
	def select_view(self, index):
		self.tk.call(self._w, 'select', 'view', index)

class Frame(Widget):
	def __init__(self, master=None, cnf={}):
		cnf = _cnfmerge(cnf)
		extra = ()
		if cnf.has_key('class'):
			extra = ('-class', cnf['class'])
			del cnf['class']
		Widget.__init__(self, master, 'frame', cnf, extra)
	def tk_menuBar(self, *args):
		apply(self.tk.call, ('tk_menuBar', self._w) + args)

class Label(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'label', cnf)

class Listbox(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'listbox', cnf)
	def tk_listboxSingleSelect(self):
		self.tk.call('tk_listboxSingleSelect', self._w) 
	def curselection(self):
		return self.tk.splitlist(self.tk.call(
			self._w, 'curselection'))
	def delete(self, first, last=None):
		self.tk.call(self._w, 'delete', first, last)
	def get(self, index):
		return self.tk.call(self._w, 'get', index)
	def insert(self, index, *elements):
		apply(self.tk.call,
		      (self._w, 'insert', index) + elements)
	def nearest(self, y):
		return self.tk.getint(self.tk.call(
			self._w, 'nearest', y))
	def scan_mark(self, x, y):
		self.tk.call(self._w, 'scan', 'mark', x, y)
	def scan_dragto(self, x, y):
		self.tk.call(self._w, 'scan', 'dragto', x, y)
	def select_adjust(self, index):
		self.tk.call(self._w, 'select', 'adjust', index)
	def select_clear(self):
		self.tk.call(self._w, 'select', 'clear')
	def select_from(self, index):
		self.tk.call(self._w, 'select', 'from', index)
	def select_to(self, index):
		self.tk.call(self._w, 'select', 'to', index)
	def size(self):
		return self.tk.getint(self.tk.call(self._w, 'size'))
	def xview(self, index):
		self.tk.call(self._w, 'xview', index)
	def yview(self, index):
		self.tk.call(self._w, 'yview', index)

class Menu(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'menu', cnf)
	def tk_bindForTraversal(self):
		self.tk.call('tk_bindForTraversal', self._w)
	def tk_mbPost(self):
		self.tk.call('tk_mbPost', self._w)
	def tk_mbUnpost(self):
		self.tk.call('tk_mbUnpost')
	def tk_traverseToMenu(self, char):
		self.tk.call('tk_traverseToMenu', self._w, char)
	def tk_traverseWithinMenu(self, char):
		self.tk.call('tk_traverseWithinMenu', self._w, char)
	def tk_getMenuButtons(self):
		return self.tk.call('tk_getMenuButtons', self._w)
	def tk_nextMenu(self, count):
		self.tk.call('tk_nextMenu', count)
	def tk_nextMenuEntry(self, count):
		self.tk.call('tk_nextMenuEntry', count)
	def tk_invokeMenu(self):
		self.tk.call('tk_invokeMenu', self._w)
	def tk_firstMenu(self):
		self.tk.call('tk_firstMenu', self._w)
	def tk_mbButtonDown(self):
		self.tk.call('tk_mbButtonDown', self._w)
	def activate(self, index):
		self.tk.call(self._w, 'activate', index)
	def add(self, itemType, cnf={}):
		apply(self.tk.call, (self._w, 'add', itemType) 
		      + self._options(cnf))
	def add_cascade(self, cnf={}):
		self.add('cascade', cnf)
	def add_checkbutton(self, cnf={}):
		self.add('checkbutton', cnf)
	def add_command(self, cnf={}):
		self.add('command', cnf)
	def add_radiobutton(self, cnf={}):
		self.add('radiobutton', cnf)
	def add_separator(self, cnf={}):
		self.add('separator', cnf)
	def delete(self, index1, index2=None):
		self.tk.call(self._w, 'delete', index1, index2)
	def entryconfig(self, index, cnf={}):
		apply(self.tk.call, (self._w, 'entryconfigure', index)
		      + self._options(cnf))
	def index(self, index):
		i = self.tk.call(self._w, 'index', index)
		if i == 'none': return None
		return self.tk.getint(i)
	def invoke(self, index):
		return self.tk.call(self._w, 'invoke', index)
	def post(self, x, y):
		self.tk.call(self._w, 'post', x, y)
	def unpost(self):
		self.tk.call(self._w, 'unpost')
	def yposition(self, index):
		return self.tk.getint(self.tk.call(
			self._w, 'yposition', index))

class Menubutton(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'menubutton', cnf)

class Message(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'message', cnf)

class Radiobutton(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'radiobutton', cnf)
	def deselect(self):
		self.tk.call(self._w, 'deselect')
	def flash(self):
		self.tk.call(self._w, 'flash')
	def invoke(self):
		self.tk.call(self._w, 'invoke')
	def select(self):
		self.tk.call(self._w, 'select')

class Scale(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'scale', cnf)
	def get(self):
		return self.tk.getint(self.tk.call(self._w, 'get'))
	def set(self, value):
		self.tk.call(self._w, 'set', value)

class Scrollbar(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'scrollbar', cnf)
	def get(self):
		return self._getints(self.tk.call(self._w, 'get'))
	def set(self, totalUnits, windowUnits, firstUnit, lastUnit):
		self.tk.call(self._w, 'set', 
			     totalUnits, windowUnits, firstUnit, lastUnit)

class Text(Widget):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'text', cnf)
	def tk_textSelectTo(self, index):
		self.tk.call('tk_textSelectTo', self._w, index)
	def tk_textBackspace(self):
		self.tk.call('tk_textBackspace', self._w)
	def tk_textIndexCloser(self, a, b, c):
		self.tk.call('tk_textIndexCloser', self._w, a, b, c)
	def tk_textResetAnchor(self, index):
		self.tk.call('tk_textResetAnchor', self._w, index)
	def compare(self, index1, op, index2):
		return self.tk.getboolean(self.tk.call(
			self._w, 'compare', index1, op, index2))
	def debug(self, boolean=None):
		return self.tk.getboolean(self.tk.call(
			self._w, 'debug', boolean))
	def delete(self, index1, index2=None):
		self.tk.call(self._w, 'delete', index1, index2)
	def get(self, index1, index2=None):
		return self.tk.call(self._w, 'get', index1, index2)
	def index(self, index):
		return self.tk.call(self._w, 'index', index)
	def insert(self, index, chars):
		self.tk.call(self._w, 'insert', index, chars)
	def mark_names(self):
		return self.tk.splitlist(self.tk.call(
			self._w, 'mark', 'names'))
	def mark_set(self, markName, index):
		self.tk.call(self._w, 'mark', 'set', markName, index)
	def mark_unset(self, markNames):
		apply(self.tk.call, (self._w, 'mark', 'unset') + markNames)
	def scan_mark(self, y):
		self.tk.call(self._w, 'scan', 'mark', y)
	def scan_dragto(self, y):
		self.tk.call(self._w, 'scan', 'dragto', y)
	def tag_add(self, tagName, index1, index2=None):
		self.tk.call(
			self._w, 'tag', 'add', tagName, index1, index2)
	def tag_unbind(self, tagName, sequence):
		self.tk.call(self._w, 'tag', 'bind', tagName, sequence, '')
	def tag_bind(self, tagName, sequence, func, add=''):
		if add: add='+'
		name = self._register(func, self._substitute)
		self.tk.call(self._w, 'tag', 'bind', 
			     tagName, sequence, 
			     (add + name,) + self._subst_format)
	def tag_config(self, tagName, cnf={}):
		apply(self.tk.call, 
		      (self._w, 'tag', 'configure', tagName) 
		      + self._options(cnf))
	def tag_delete(self, *tagNames):
		apply(self.tk.call, (self._w, 'tag', 'delete') + tagNames)
	def tag_lower(self, tagName, belowThis=None):
		self.tk.call(self._w, 'tag', 'lower', tagName, belowThis)
	def tag_names(self, index=None):
		return self.tk.splitlist(
			self.tk.call(self._w, 'tag', 'names', index))
	def tag_nextrange(self, tagName, index1, index2=None):
		return self.tk.splitlist(self.tk.call(
			self._w, 'tag', 'nextrange', index1, index2))
	def tag_raise(self, tagName, aboveThis=None):
		self.tk.call(
			self._w, 'tag', 'raise', tagName, aboveThis)
	def tag_ranges(self, tagName):
		return self.tk.splitlist(self.tk.call(
			self._w, 'tag', 'ranges', tagName))
	def tag_remove(self, tagName, index1, index2=None):
		self.tk.call(
			self._w, 'tag', 'remove', tagName, index1, index2)
	def yview(self, what):
		self.tk.call(self._w, 'yview', what)
	def yview_pickplace(self, what):
		self.tk.call(self._w, 'yview', '-pickplace', what)

######################################################################
# Extensions:

class Studbutton(Button):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'studbutton', cnf)
		self.bind('<Any-Enter>',       self.tk_butEnter)
		self.bind('<Any-Leave>',       self.tk_butLeave)
		self.bind('<1>',               self.tk_butDown)
		self.bind('<ButtonRelease-1>', self.tk_butUp)

class Tributton(Button):
	def __init__(self, master=None, cnf={}):
		Widget.__init__(self, master, 'tributton', cnf)
		self.bind('<Any-Enter>',       self.tk_butEnter)
		self.bind('<Any-Leave>',       self.tk_butLeave)
		self.bind('<1>',               self.tk_butDown)
		self.bind('<ButtonRelease-1>', self.tk_butUp)