summaryrefslogtreecommitdiff
path: root/lib/tk.rb
blob: f44a1fe4a8bf07bc1707889ee17ddb5f38846003 (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
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
#
#		tk.rb - Tk interface modue using tcltklib
#			$Date$
#			by Yukihiro Matsumoto <matz@netlab.co.jp>

# use Shigehiro's tcltklib
require "tcltklib"
require "tkutil"

module TkComm
  None = Object.new
  def None.to_s
    'None'
  end

  Tk_CMDTBL = {}
  Tk_WINDOWS = {}

  def error_at
    frames = caller(1)
    frames.delete_if do |c|
      c =~ %r!/tk(|core|thcore|canvas|text|entry|scrollbox)\.rb:\d+!
    end
    frames
  end
  private :error_at

  def _genobj_for_tkwidget(path)
    return TkRoot.new if path == '.'

    begin
      tk_class = TkCore::INTERP._invoke('winfo', 'class', path)
    rescue
      return path
    end

    ruby_class = TkClassBind::WidgetClassNameTBL[tk_class]
    gen_class_name = ruby_class.name + 'GeneratedOnTk'
    unless Object.const_defined? gen_class_name
      eval "class #{gen_class_name}<#{ruby_class.name}
              def initialize(path)
                @path=path
                Tk_WINDOWS[@path] = self
              end
            end"
    end
    eval "#{gen_class_name}.new('#{path}')"
  end

  def tk_tcl2ruby(val)
    if val =~ /^rb_out (c\d+)/
      return Tk_CMDTBL[$1]
    end
    if val.include? ?\s
      return val.split.collect{|v| tk_tcl2ruby(v)}
    end
    case val
    when /^@font/
      TkFont.get_obj(val)
    when /^-?\d+$/
      val.to_i
    when /^\./
      Tk_WINDOWS[val] ? Tk_WINDOWS[val] : _genobj_for_tkwidget(val)
    when / /
      val.split.collect{|elt|
	tk_tcl2ruby(elt)
      }
    when /^-?\d+\.\d*$/
      val.to_f
    else
      val
    end
  end

  def tk_split_list(str)
    return [] if str == ""
    idx = str.index('{')
    return tk_tcl2ruby(str) unless idx

    list = tk_tcl2ruby(str[0,idx])
    list = [] if list == ""
    str = str[idx+1..-1]
    i = -1
    brace = 1
    str.each_byte {|c|
      i += 1
      brace += 1 if c == ?{
      brace -= 1 if c == ?}
      break if brace == 0
    }
    if str[0, i] == ' '
      list.push ' '
    else
      list.push tk_split_list(str[0, i])
    end
    list += tk_split_list(str[i+1..-1])
    list
  end

  def tk_split_simplelist(str)
    return [] if str == ""
    idx = str.index('{')
    return str.split unless idx

    list = str[0,idx].split
    str = str[idx+1..-1]
    i = -1
    brace = 1
    str.each_byte {|c|
      i += 1
      brace += 1 if c == ?{
      brace -= 1 if c == ?}
      break if brace == 0
    }
    if i == 0
      list.push ''
    elsif str[0, i] == ' '
      list.push ' '
    else
      list.push str[0..i-1]
    end
    list += tk_split_simplelist(str[i+1..-1])
    list
  end
  private :tk_tcl2ruby, :tk_split_list, :tk_split_simplelist

  def hash_kv(keys)
    conf = []
    if keys and keys != None
      for k, v in keys
	 conf.push("-#{k}")
	 conf.push(v)
      end
    end
    conf
  end
  private :hash_kv

  def array2tk_list(ary)
    ary.collect{|e|
      if e.kind_of? Array
	"{#{array2tk_list(e)}}"
      elsif e.kind_of? Hash
	"{#{e.to_a.collect{|ee| array2tk_list(ee)}.join(' ')}}"
      else
	s = _get_eval_string(e)
	(s.index(/\s/))? "{#{s}}": s
      end
    }.join(" ")
  end
  private :array2tk_list

  def bool(val)
    case val
    when "1", 1, 'yes', 'true'
      TRUE
    else
      FALSE
    end
  end
  def number(val)
    case val
    when /^-?\d+$/
      val.to_i
    when /^-?\d+\.\d*$/
      val.to_f
    else
      val
    end
  end
  def string(val)
    if val == "{}"
      ''
    elsif val[0] == ?{
      val[1..-2]
    else
      val
    end
  end
  def list(val)
    tk_split_list(val).to_a
  end
  def window(val)
    Tk_WINDOWS[val]
  end
  def procedure(val)
    if val =~ /^rb_out (c\d+)/
      Tk_CMDTBL[$1]
    else
      nil
    end
  end
  private :bool, :number, :string, :list, :window, :procedure

  def _get_eval_string(str)
    return nil if str == None
    if str.kind_of?(Hash)
      str = hash_kv(str).join(" ")
    elsif str.kind_of?(Array)
      str = array2tk_list(str)
    elsif str.kind_of?(Proc)
      str = install_cmd(str)
    elsif str == nil
      str = ""
    elsif str == false
      str = "0"
    elsif str == true
      str = "1"
    elsif (str.respond_to?(:to_eval))
      str = str.to_eval()
    else
      str = str.to_s()
    end
    return str
  end
  private :_get_eval_string

  Tk_IDs = [0, 0]		# [0]-cmdid, [1]-winid
  def _curr_cmd_id
    id = format("c%.4d", Tk_IDs[0])
  end
  def _next_cmd_id
    id = _curr_cmd_id
    Tk_IDs[0] += 1
    id
  end
  def install_cmd(cmd)
    return '' if cmd == ''
    id = _next_cmd_id
    Tk_CMDTBL[id] = cmd
    @cmdtbl = [] if not @cmdtbl
    @cmdtbl.push id
    return format("rb_out %s", id);
  end
  def uninstall_cmd(id)
    Tk_CMDTBL[id] = nil
  end
  private :install_cmd, :uninstall_cmd

  def install_win(ppath)
    id = format("w%.4d", Tk_IDs[1])
    Tk_IDs[1] += 1
    if !ppath or ppath == "."
      @path = format(".%s", id);
    else
      @path = format("%s.%s", ppath, id)
    end
    Tk_WINDOWS[@path] = self
  end

  def uninstall_win()
    Tk_WINDOWS[@path] = nil
  end

  class Event
    def initialize(seq,b,f,h,k,s,t,w,x,y,aa,ee,kk,nn,ww,tt,xx,yy)
      @serial = seq
      @num = b
      @focus = (f == 1)
      @height = h
      @keycode = k
      @state = s
      @time = t
      @width = w
      @x = x
      @y = y
      @char = aa
      @send_event = (ee == 1)
      @keysym = kk
      @keysym_num = nn
      @type = tt
      @widget = ww
      @x_root = xx
      @y_root = yy
    end
    attr :serial
    attr :num
    attr :focus
    attr :height
    attr :keycode
    attr :state
    attr :time
    attr :width
    attr :x
    attr :y
    attr :char
    attr :send_event
    attr :keysym
    attr :keysym_num
    attr :type
    attr :widget
    attr :x_root
    attr :y_root
  end

  def install_bind(cmd, args=nil)
    if args
      id = install_cmd(proc{|arg|
	TkUtil.eval_cmd cmd, *arg
      })
      id + " " + args
    else
      id = install_cmd(proc{|arg|
	TkUtil.eval_cmd cmd, Event.new(*arg)
      })
      id + ' %# %b %f %h %k %s %t %w %x %y %A %E %K %N %W %T %X %Y'
    end
  end

  def tk_event_sequence(context)
    if context.kind_of? TkVirtualEvent
      context = context.path
    end
    if context.kind_of? Array
      context = context.collect{|ev|
	if context.kind_of? TkVirtualEvent
	  ev.path
	else
	  ev
	end
      }.join("><")
    end
    if /,/ =~ context
      context = context.split(/\s*,\s*/).join("><")
    else
      context
    end
  end

  def _bind_core(mode, path, context, cmd, args=nil)
    id = install_bind(cmd, args)
    begin
      tk_call 'bind', path, "<#{tk_event_sequence(context)}>", mode + id
    rescue
      uninstall_cmd(id)
      fail
    end
  end

  def _bind(path, context, cmd, args=nil)
    _bind_core('', path, context, cmd, args)
  end

  def _bind_append(path, context, cmd, args=nil)
    _bind_core('+', path, context, cmd, args)
  end
  private :install_bind, :tk_event_sequence, :_bind_core, :_bind, :_bind_append

  def bind_all(context, cmd=Proc.new, args=nil)
    _bind 'all', context, cmd, args
  end

  def bind_append_all(context, cmd=Proc.new, args=nil)
    _bind_append 'all', context, cmd, args
  end

  def bind(tagOrClass, context, cmd=Proc.new, args=nil)
    _bind tagOrClass, context, cmd, args
  end

  def bind_append(tagOrClass, context, cmd=Proc.new, args=nil)
    _bind_append tagOrClass, context, cmd, args
  end

  def _bindinfo(tagOrClass, context=nil)
    if context
      (tk_call('bind', tagOrClass, 
	       "<#{tk_event_sequence(context)}>")).collect{|cmdline|
	if cmdline =~ /^rb_out (c\d+)\s+(.*)$/
	  [Tk_CMDTBL[$1], $2]
	else
	  cmdline
	end
      }
    else
      tk_split_list(tk_call 'bind', tagOrClass).collect{|seq|
	seq[1..-2].gsub(/></,',')
      }
    end
  end

  def bindinfo(tagOrClass, context=nil)
    _bindinfo tagOrClass, context
  end

  def pack(*args)
    TkPack.configure *args
  end

  def grid(*args)
    TkGrid.configure *args
  end

  def update(idle=nil)
    if idle
      tk_call 'update', 'idletasks'
    else
      tk_call 'update'
    end
  end

end

module TkCore
  include TkComm
  extend TkComm

  INTERP = TclTkIp.new

  INTERP._invoke("proc", "rb_out", "args", "if {[set st [catch {ruby [format \"TkCore.callback %%Q!%s!\" $args]} ret]] != 0} {return -code $st $ret} {return $ret}")

  def callback_break
    raise TkCallbackBreak, "Tk callback returns 'break' status"
  end

  def callback_continue
    raise TkCallbackContinue, "Tk callback returns 'continue' status"
  end

  def after(ms, cmd=Proc.new)
    myid = _curr_cmd_id
    cmdid = install_cmd(cmd)
    tk_call("after",ms,cmdid)
    return
    if false #defined? Thread
      Thread.start do
	ms = Float(ms)/1000
	ms = 10 if ms == 0
	sleep ms/1000
	cmd.call
      end
    else
      cmdid = install_cmd(cmd)
      tk_call("after",ms,cmdid)
    end
  end

  def TkCore.callback(arg)
    arg = Array(tk_split_list(arg))
    _get_eval_string(TkUtil.eval_cmd(Tk_CMDTBL[arg.shift], *arg))
  end

  def appname(name=None)
    tk_call('tk', 'appname', name)
  end

  def appsend(interp, async, *args)
    if async
      tk_call('send', '-async', '--', interp, *args)
    else
      tk_call('send', '--', interp, *args)
    end
  end

  def rb_appsend(interp, async, *args)
    args = args.filter{|c| _get_eval_string(c).gsub(/[][$"]/, '\\\\\&')}
    args.push(').to_s"')
    appsend(interp, async, 'ruby "(', *args)
  end

  def appsend_displayof(interp, win, async, *args)
    win = '.' if win == nil
    if async
      tk_call('send', '-async', '-displayof', win, '--', interp, *args)
    else
      tk_call('send', '-displayor', win, '--', interp, *args)
    end
  end

  def rb_appsend_displayof(interp, win, async, *args)
    args = args.filter{|c| _get_eval_string(c).gsub(/[][$"]/, '\\\\\&')}
    args.push(').to_s"')
    appsend_displayof(interp, win, async, 'ruby "(', *args)
  end

  def info(*args)
    tk_call('info', *args)
  end

  def mainloop
    TclTkLib.mainloop
  end

  def event_generate(window, context, keys=nil)
    window = window.path if window.kind_of? TkObject
    if keys
      tk_call('event', 'generate', window, 
	      "<#{tk_event_sequence(context)}>", *hash_kv(keys))
    else
      tk_call('event', 'generate', window, "<#{tk_event_sequence(context)}>")
    end
  end

  def messageBox(keys)
    tk_call 'tk_messageBox', *hash_kv(keys)
  end

  def getOpenFile(keys)
    tk_call 'tk_getOpenFile', *hash_kv(keys)
  end

  def getSaveFile(keys)
    tk_call 'tk_getSaveFile', *hash_kv(keys)
  end

  def chooseColor(keys)
    tk_call 'tk_chooseColor', *hash_kv(keys)
  end

  def tk_call(*args)
    print args.join(" "), "\n" if $DEBUG
    args.filter {|x|_get_eval_string(x)}
    args.compact!
    args.flatten!
    begin
      res = INTERP._invoke(*args)
    rescue NameError
      err = $!
      begin
        args.unshift "unknown"
        res = INTERP._invoke(*args)
      rescue
	raise unless /^invalid command/ =~ $!
	raise err
      end
    end
    if  INTERP._return_value() != 0
      fail RuntimeError, res, error_at
    end
    print "==> ", res, "\n" if $DEBUG
    return res
  end
end

module Tk
  include TkCore
  extend Tk

  TCL_VERSION = INTERP._invoke("info", "tclversion")
  TK_VERSION  = INTERP._invoke("set", "tk_version")
  JAPANIZED_TK = (INTERP._invoke("info", "commands", "kanji") != "")

  def root
    TkRoot.new
  end

  def bell
    tk_call 'bell'
  end

  def Tk.focus(display=nil)
    if display == nil
      r = tk_call('focus')
    else
      r = tk_call('focus', '-displayof', display)
    end
    tk_tcl2ruby(r)
  end

  def Tk.focus_lastfor(win)
    tk_tcl2ruby(tk_call('focus', '-lastfor', win))
  end

  def toUTF8(str,encoding)
    INTERP._toUTF8(str,encoding)
  end
  
  def fromUTF8(str,encoding)
    INTERP._fromUTF8(str,encoding)
  end

  module Scrollable
    def xscrollcommand(cmd=Proc.new)
      configure_cmd 'xscrollcommand', cmd
    end
    def yscrollcommand(cmd=Proc.new)
      configure_cmd 'yscrollcommand', cmd
    end
  end

  module Wm
    def aspect(*args)
      w = window(tk_call('wm', 'grid', path, *args))
      w.split.collect{|s|s.to_i} if args.length == 0
    end
    def client(name=None)
      tk_call 'wm', 'client', path, name
    end
    def colormapwindows(*args)
      list(tk_call('wm', 'colormapwindows', path, *args))
    end
    def wm_command(value=None)
      string(tk_call('wm', 'command', path, value))
    end
    def deiconify
      tk_call 'wm', 'deiconify', path
    end
    def focusmodel(*args)
      tk_call 'wm', 'focusmodel', path, *args
    end
    def frame
      tk_call 'wm', 'frame', path
    end
    def geometry(*args)
      list(tk_call('wm', 'geometry', path, *args))
    end
    def grid(*args)
      w = tk_call('wm', 'grid', path, *args)
      list(w) if args.size == 0
    end
    def group(*args)
      tk_call 'wm', 'group', path, *args
    end
    def iconbitmap(*args)
      tk_call 'wm', 'iconbitmap', path, *args
    end
    def iconify
      tk_call 'wm', 'iconify', path
    end
    def iconmask(*args)
      tk_call 'wm', 'iconmask', path, *args
    end
    def iconname(*args)
      tk_call 'wm', 'iconname', path, *args
    end
    def iconposition(*args)
      w = tk_call('wm', 'iconposition', path, *args)
      list(w) if args.size == 0
    end
    def iconwindow(*args)
      w = tk_call('wm', 'iconwindow', path, *args)
      window(w) if args.size == 0
    end
    def maxsize(*args)
      w = tk_call('wm', 'maxsize', path, *args)
      list(w) if not args.size == 0
    end
    def minsize(*args)
      w = tk_call('wm', 'minsize', path, *args)
      list(w) if args.size == 0
    end
    def overrideredirect(bool=None)
      if bool == None
	bool(tk_call('wm', 'overrideredirect', path))
      else
	tk_call 'wm', 'overrideredirect', path, bool
      end
    end
    def positionfrom(*args)
      tk_call 'wm', 'positionfrom', path, *args
    end
    def protocol(name=nil, cmd=nil)
      if cmd
	tk_call('wm', 'protocol', path, name, cmd)
      elsif name
	result = tk_call('wm', 'protocol', path, name)
	(result == "")? nil : tk_tcl2ruby(result)
      else
	tk_split_simplelist(tk_call('wm', 'protocol', path))
      end
    end
    def resizable(*args)
      w = tk_call('wm', 'resizable', path, *args)
      if args.length == 0
	list(w).collect{|e| bool(e)}
      end
    end
    def sizefrom(*args)
      list(tk_call('wm', 'sizefrom', path, *args))
    end
    def state
      tk_call 'wm', 'state', path
    end
    def title(*args)
      tk_call 'wm', 'title', path, *args
    end
    def transient(*args)
      tk_call 'wm', 'transient', path, *args
    end
    def withdraw
      tk_call 'wm', 'withdraw', path
    end
  end
end

class TkVariable
  include Tk
  extend TkCore

  TkVar_CB_TBL = {}
  Tk_VARIABLE_ID = ["v00000"]

  INTERP._invoke("proc", "rb_var", "args", "ruby [format \"TkVariable.callback %%Q!%s!\" $args]")

  def TkVariable.callback(args)
    name1,name2,op = tk_split_list(args)
    if TkVar_CB_TBL[name1]
      _get_eval_string(TkVar_CB_TBL[name1].trace_callback(name2,op))
    else
      ''
    end
  end

  def initialize(val="")
    @id = Tk_VARIABLE_ID[0]
    Tk_VARIABLE_ID[0] = Tk_VARIABLE_ID[0].succ
    if val == []
      INTERP._eval(format('global %s; set %s(0) 0; unset %s(0)', 
			  @id, @id, @id))
    elsif val.kind_of?(Array)
      a = []
      val.each_with_index{|e,i| a.push(i); a.push(array2tk_list(e))}
      s = '"' + a.join(" ").gsub(/[][$"]/, '\\\\\&') + '"' #'
      INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
    elsif  val.kind_of?(Hash)
      s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
                   .gsub(/[][$"]/, '\\\\\&') + '"' #'
      INTERP._eval(format('global %s; array set %s %s', @id, @id, s))
    else
      s = '"' + _get_eval_string(val).gsub(/[][$"]/, '\\\\\&') + '"' #'
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    end
  end

  def wait
    INTERP._eval("tkwait variable #{@id}")
  end

  def id
    @id
  end

  def value
    begin
      INTERP._eval(format('global %s; set %s', @id, @id))
    rescue
      if INTERP._eval(format('global %s; array exists %s', @id, @id)) != "1"
	raise
      else
	Hash[*tk_split_simplelist(INTERP\
				  ._eval(format('global %s; array get %s', 
						@id, @id)))]
      end
    end
  end

  def value=(val)
    begin
      s = '"' + _get_eval_string(val).gsub(/[][$"]/, '\\\\\&') + '"' #'
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    rescue
      if INTERP._eval(format('global %s; array exists %s', @id, @id)) != "1"
	raise
      else
	INTERP._eval(format('global %s; unset %s'), @id, @id)
	if val == []
	  INTERP._eval(format('global %s; set %s(0) 0; unset %s(0)', 
			      @id, @id, @id))
	elsif val.kind_of?(Array)
	  a = []
	  val.each_with_index{|e,i| a.push(i); a.push(array2tk_list(e))}
	  s = '"' + a.join(" ").gsub(/[][$"]/, '\\\\\&') + '"' #'
	  INTERP._eval(format('global %s; unset %s; array set %s %s', 
			      @id, @id, @id, s))
	elsif  val.kind_of?(Hash)
	  s = '"' + val.to_a.collect{|e| array2tk_list(e)}.join(" ")\
	                        .gsub(/[][$"]/, '\\\\\&') + '"' #'
	  INTERP._eval(format('global %s; unset %s; array set %s %s', 
			      @id, @id, @id, s))
	else
	  raise
	end
      end
    end
  end

  def [](index)
    INTERP._eval(format('global %s; set %s(%s)', 
			@id, @id, _get_eval_string(index)))
  end

  def []=(index,val)
    INTERP._eval(format('global %s; set %s(%s) %s', @id, @id, 
			_get_eval_string(index), _get_eval_string(val)))
  end

  def to_i
    Integer(number(value))
  end

  def to_f
    Float(number(value))
  end

  def to_s
    String(string(value))
  end

  def inspect
    format "<TkVariable: %s>", @id
  end

  def ==(other)
    case other
    when TkVariable
      self.equal(self)
    when String
      self.to_s == other
    when Integer
      self.to_i == other
    when Float
      self.to_f == other
    when Array
      self.to_a == other
    else
      false
    end
  end

  def to_a
    list(value)
  end

  def to_eval
    @id
  end

  def unset(elem=nil)
    if elem
      INTERP._eval(format('global %s; unset %s(%s)', 
			  @id, @id, tk_tcl2ruby(elem)))
    else
      INTERP._eval(format('global %s; unset %s', @id, @id))
    end
  end
  alias remove unset

  def trace_callback(elem, op)
    if @trace_var.kind_of? Array
      @trace_var.each{|m,e| e.call(self,elem,op) if m.index(op)}
    end
    if elem.kind_of? String
      if @trace_elem[elem].kind_of? Array
	@trace_elem[elem].each{|m,e| e.call(self,elem,op) if m.index(op)}
      end
    end
  end

  def trace(opts, cmd)
    @trace_var = [] if @trace_var == nil
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    @trace_var.unshift([opts,cmd])
    if @trace_opts == nil
      TkVar_CB_TBL[@id] = self
      @trace_opts = opts
      Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
    else
      newopts = @trace_opts.dup
      opts.each_byte{|c| newopts += c.chr unless @newopts.index(c)}
      if newopts != @trace_opts
	Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
	@trace_opts.replace(newopts)
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end

  def trace_element(elem, opts, cmd)
    @trace_elem = {} if @trace_elem == nil
    @trace_elem[elem] = [] if @trace_elem[elem] == nil
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    @trace_elem[elem].unshift([opts,cmd])
    if @trace_opts == nil
      TkVar_CB_TBL[@id] = self
      @trace_opts = opts
      Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
    else
      newopts = @trace_opts.dup
      opts.each_byte{|c| newopts += c.chr unless @newopts.index(c)}
      if newopts != @trace_opts
	Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
	@trace_opts.replace(newopts)
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end

  def trace_vinfo
    return [] unless @trace_var
    @trace_var.dup
  end
  def trace_vinfo_for_element(elem)
    return [] unless @trace_elem
    return [] unless @trace_elem[elem]
    @trace_elem[elem].dup
  end

  def trace_vdelete(opts,cmd)
    return unless @trace_var.kind_of? Array
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    idx = -1
    newopts = ''
    @trace_var.each_with_index{|i,e| 
      if idx < 0 && e[0] == opts && e[1] == cmd
	idx = i
	next
      end
      e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
    }
    if idx >= 0
      @trace_var.delete_at(idx) 
    else
      return
    end

    @trace_elem.each{|elem|
      @trace_elem[elem].each{|e|
	e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
      }
    }

    newopts = ['r','w','u'].find_all{|c| newopts.index(c)}.join('')
    if newopts != @trace_opts
      Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
      @trace_opts.replace(newopts)
      if @trace_opts != ''
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end

  def trace_vdelete_for_element(elem,opts,cmd)
    return unless @trace_elem.kind_of? Hash
    return unless @trace_elem[elem].kind_of? Array
    opts = ['r','w','u'].find_all{|c| opts.index(c)}.join('')
    idx = -1
    @trace_elem[elem].each_with_index{|i,e| 
      if idx < 0 && e[0] == opts && e[1] == cmd
	idx = i
	next
      end
    }
    if idx >= 0
      @trace_elem[elem].delete_at(idx)
    else
      return
    end

    newopts = ''
    @trace_var.each{|e| 
      e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
    }
    @trace_elem.each{|elem|
      @trace_elem[elem].each{|e|
	e[0].each_byte{|c| newopts += c.chr unless newopts.index(c)}
      }
    }

    newopts = ['r','w','u'].find_all{|c| newopts.index(c)}.join('')
    if newopts != @trace_opts
      Tk.tk_call('trace', 'vdelete', @id, @trace_opts, 'rb_var')
      @trace_opts.replace(newopts)
      if @trace_opts != ''
	Tk.tk_call('trace', 'variable', @id, @trace_opts, 'rb_var')
      end
    end
  end
end

class TkVarAccess<TkVariable
  def initialize(varname, val=nil)
    @id = varname
    if val
      s = '"' + _get_eval_string(val).gsub(/[][$"]/, '\\\\\&') + '"' #'
      INTERP._eval(format('global %s; set %s %s', @id, @id, s))
    end
  end
end

module TkSelection
  include Tk
  extend Tk
  def clear(win=Tk.root)
    tk_call 'selection', 'clear', win.path
  end
  def get(type=None)
    tk_call 'selection', 'get', type
  end
  def TkSelection.handle(win, func, type=None, format=None)
    id = install_cmd(func)
    tk_call 'selection', 'handle', win.path, id, type, format
  end
  def handle(func, type=None, format=None)
    TkSelection.handle self, func, type, format
  end
  def TkSelection.own(win, func=None)
    id = install_cmd(func)
    tk_call 'selection', 'own', win.path, id
  end
  def own(func=None)
    TkSelection.own self, func
  end

  module_function :clear, :get
end

module TkKinput
  include Tk
  extend Tk

  def TkKinput.start(window, style=None)
    tk_call 'kinput_start', window.path, style
  end
  def kinput_start(style=None)
    TkKinput.start(self, style)
  end

  def TkKinput.send_spot(window)
    tk_call 'kinput_send_spot', window.path
  end
  def kinput_send_spot
    TkKinput.send_spot(self)
  end

  def TkKinput.input_start(window, keys=nil)
    tk_call 'kanjiInput', 'start', window.path, *hash_kv(keys)
  end
  def kanji_input_start(keys=nil)
    TkKinput.input_start(self, keys)
  end

  def TkKinput.attribute_config(window, slot, value=None)
    if slot.kind_of? Hash
      tk_call 'kanjiInput', 'attribute', window.path, *hash_kv(slot)
    else
      tk_call 'kanjiInput', 'attribute', window.path, "-#{slot}", value
    end
  end
  def kinput_attribute_config(slot, value=None)
    TkKinput.attribute_config(self, slot, value)
  end

  def TkKinput.attribute_info(window, slot=nil)
    if slot
      conf = tk_split_list(tk_call('kanjiInput', 'attribute', 
				   window.path, "-#{slot}"))
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_list(tk_call('kanjiInput', 'attribute', 
			    window.path)).collect{|conf|
	conf[0] = conf[0][1..-1]
	conf
      }
    end
  end
  def kinput_attribute_info(slot=nil)
    TkKinput.attribute_info(self, slot)
  end

  def TkKinput.input_end(window)
    tk_call 'kanjiInput', 'end', window.path
  end
  def kanji_input_end
    TkKinput.input_end(self)
  end
end

module TkWinfo
  include Tk
  extend Tk
  def TkWinfo.atom(name)
    tk_call 'winfo', name
  end
  def winfo_atom(name)
    TkWinfo.atom name
  end
  def TkWinfo.atomname(id)
    tk_call 'winfo', id
  end
  def winfo_atomname(id)
    TkWinfo.atomname id
  end
  def TkWinfo.cells(window)
    number(tk_call('winfo', window.path))
  end
  def winfo_cells
    TkWinfo.cells self
  end
  def TkWinfo.children(window)
    c = tk_call('winfo', 'children', window.path)
    list(c)
  end
  def winfo_children
    TkWinfo.children self
  end
  def TkWinfo.classname(window)
    tk_call 'winfo', 'class', window.path
  end
  def winfo_classname
    TkWinfo.classname self
  end
  def TkWinfo.containing(rootX, rootY)
    path = tk_call('winfo', 'containing', rootX, rootY)
    window(path)
  end
  def winfo_containing(x, y)
    TkWinfo.containing x, y
  end
  def TkWinfo.depth(window)
    number(tk_call('winfo', 'depth', window.path))
  end
  def winfo_depth
    TkWinfo.depth self
  end
  def TkWinfo.exist?(window)
    bool(tk_call('winfo', 'exists', window.path))
  end
  def winfo_exist?
    TkWinfo.exist? self
  end
  def TkWinfo.fpixels(window, number)
    number(tk_call('winfo', 'fpixels', window.path, number))
  end
  def winfo_fpixels(number)
    TkWinfo.fpixels self, number
  end
  def TkWinfo.geometry(window)
    list(tk_call('winfo', 'geometry', window.path))
  end
  def winfo_geometry
    TkWinfo.geometry self
  end
  def TkWinfo.height(window)
    number(tk_call('winfo', 'height', window.path))
  end
  def winfo_height
    TkWinfo.height self
  end
  def TkWinfo.id(window)
    number(tk_call('winfo', 'id', window.path))
  end
  def winfo_id
    TkWinfo.id self
  end
  def TkWinfo.interps(window=nil)
    if window
      tk_split_simplelist(tk_call('winfo', '-displayof', window.path, 
				  'interps'))
    else
      tk_split_simplelist(tk_call('winfo', 'interps'))
    end
  end
  def winfo_interps
    TkWinfo.interps self
  end
  def TkWinfo.mapped?(window)
    bool(tk_call('winfo', 'ismapped', window.path))
  end
  def winfo_mapped?
    TkWinfo.mapped? self
  end
  def TkWinfo.appname(window)
    bool(tk_call('winfo', 'name', window.path))
  end
  def winfo_appname
    TkWinfo.appname self
  end
  def TkWinfo.parent(window)
    window(tk_call('winfo', 'parent', window.path))
  end
  def winfo_parent
    TkWinfo.parent self
  end
  def TkWinfo.widget(id)
    window(tk_call('winfo', 'pathname', id))
  end
  def winfo_widget(id)
    TkWinfo.widget id
  end
  def TkWinfo.pixels(window, number)
    number(tk_call('winfo', 'pixels', window.path, number))
  end
  def winfo_pixels(number)
    TkWinfo.pixels self, number
  end
  def TkWinfo.reqheight(window)
    number(tk_call('winfo', 'reqheight', window.path))
  end
  def winfo_reqheight
    TkWinfo.reqheight self
  end
  def TkWinfo.reqwidth(window)
    number(tk_call('winfo', 'reqwidth', window.path))
  end
  def winfo_reqwidth
    TkWinfo.reqwidth self
  end
  def TkWinfo.rgb(window, color)
    list(tk_call('winfo', 'rgb', window.path, color))
  end
  def winfo_rgb(color)
    TkWinfo.rgb self, color
  end
  def TkWinfo.rootx(window)
    number(tk_call('winfo', 'rootx', window.path))
  end
  def winfo_rootx
    TkWinfo.rootx self
  end
  def TkWinfo.rooty(window)
    number(tk_call('winfo', 'rooty', window.path))
  end
  def winfo_rooty
    TkWinfo.rooty self
  end
  def TkWinfo.screen(window)
    tk_call 'winfo', 'screen', window.path
  end
  def winfo_screen
    TkWinfo.screen self
  end
  def TkWinfo.screencells(window)
    number(tk_call('winfo', 'screencells', window.path))
  end
  def winfo_screencells
    TkWinfo.screencells self
  end
  def TkWinfo.screendepth(window)
    number(tk_call('winfo', 'screendepth', window.path))
  end
  def winfo_screendepth
    TkWinfo.screendepth self
  end
  def TkWinfo.screenheight (window)
    number(tk_call('winfo', 'screenheight', window.path))
  end
  def winfo_screenheight
    TkWinfo.screenheight self
  end
  def TkWinfo.screenmmheight(window)
    number(tk_call('winfo', 'screenmmheight', window.path))
  end
  def winfo_screenmmheight
    TkWinfo.screenmmheight self
  end
  def TkWinfo.screenmmwidth(window)
    number(tk_call('winfo', 'screenmmwidth', window.path))
  end
  def winfo_screenmmwidth
    TkWinfo.screenmmwidth self
  end
  def TkWinfo.screenvisual(window)
    tk_call 'winfo', 'screenvisual', window.path
  end
  def winfo_screenvisual
    TkWinfo.screenvisual self
  end
  def TkWinfo.screenwidth(window)
    number(tk_call('winfo', 'screenwidth', window.path))
  end
  def winfo_screenwidth
    TkWinfo.screenwidth self
  end
  def TkWinfo.toplevel(window)
    window(tk_call('winfo', 'toplevel', window.path))
  end
  def winfo_toplevel
    TkWinfo.toplevel self
  end
  def TkWinfo.visual(window)
    tk_call 'winfo', 'visual', window.path
  end
  def winfo_visual
    TkWinfo.visual self
  end
  def TkWinfo.vrootheigh(window)
    number(tk_call('winfo', 'vrootheight', window.path))
  end
  def winfo_vrootheight
    TkWinfo.vrootheight self
  end
  def TkWinfo.vrootwidth(window)
    number(tk_call('winfo', 'vrootwidth', window.path))
  end
  def winfo_vrootwidth
    TkWinfo.vrootwidth self
  end
  def TkWinfo.vrootx(window)
    number(tk_call('winfo', 'vrootx', window.path))
  end
  def winfo_vrootx
    TkWinfo.vrootx self
  end
  def TkWinfo.vrooty(window)
    number(tk_call('winfo', 'vrooty', window.path))
  end
  def winfo_vrooty
    TkWinfo.vrooty self
  end
  def TkWinfo.width(window)
    number(tk_call('winfo', 'width', window.path))
  end
  def winfo_width
    TkWinfo.width self
  end
  def TkWinfo.x(window)
    number(tk_call('winfo', 'x', window.path))
  end
  def winfo_x
    TkWinfo.x self
  end
  def TkWinfo.y(window)
    number(tk_call('winfo', 'y', window.path))
  end
  def winfo_y
    TkWinfo.y self
  end
  def TkWinfo.viewable(window)
    bool(tk_call 'winfo', 'viewable', window.path)
  end
  def winfo_viewable
    TkWinfo.viewable self
  end
  def TkWinfo.pointerx(window)
    number(tk_call('winfo', 'pointerx', window.path))
  end
  def winfo_pointerx
    TkWinfo.pointerx self
  end
  def TkWinfo.pointery(window)
    number(tk_call('winfo', 'pointery', window.path))
  end
  def winfo_pointery
    TkWinfo.pointery self
  end
  def TkWinfo.pointerxy(window)
    list(tk_call('winfo', 'pointerxy', window.path))
  end
  def winfo_pointerxy
    TkWinfo.pointerxy self
  end
end

module TkPack
  include Tk
  extend Tk
  def configure(win, *args)
    if args[-1].kind_of?(Hash)
      keys = args.pop
    end
    wins = [win.epath]
    for i in args
      wins.push i.epath
    end
    tk_call "pack", 'configure', *(wins+hash_kv(keys))
  end

  def forget(*args)
    tk_call 'pack', 'forget' *args
  end

  def propagate(master, bool=None)
    bool(tk_call('pack', 'propagate', master.epath, bool))
  end
  module_function :configure, :forget, :propagate
end

module TkGrid
  include Tk
  extend Tk

  def bbox(*args)
    list(tk_call('grid', 'bbox', *args))
  end

  def configure(widget, *args)
    if args[-1].kind_of?(Hash)
      keys = args.pop
    end
    wins = [widget.epath]
    for i in args
      wins.push i.epath
    end
    tk_call "grid", 'configure', *(wins+hash_kv(keys))
  end

  def columnconfigure(master, index, args)
    tk_call "grid", 'columnconfigure', master, index, *hash_kv(args)
  end

  def rowconfigure(master, index, args)
    tk_call "grid", 'rowconfigure', master, index, *hash_kv(args)
  end

  def add(widget, *args)
    configure(widget, *args)
  end

  def forget(*args)
    tk_call 'grid', 'forget', *args
  end

  def info(slave)
    list(tk_call('grid', 'info', slave))
  end

  def location(master, x, y)
    list(tk_call('grid', 'location', master, x, y))
  end

  def propagate(master, bool=None)
    bool(tk_call('grid', 'propagate', master.epath, bool))
  end

  def remove(*args)
    tk_call 'grid', 'remove', *args
  end

  def size(master)
    tk_call 'grid', 'size', master
  end

  def slaves(args)
    list(tk_call('grid', 'slaves', *hash_kv(args)))
  end

  module_function :bbox, :forget, :propagate, :info
  module_function :remove, :size, :slaves, :location
  module_function :configure, :columnconfigure, :rowconfigure
end

module TkOption
  include Tk
  extend Tk
  def add pat, value, pri=None
    tk_call 'option', 'add', pat, value, pri
  end
  def clear
    tk_call 'option', 'clear'
  end
  def get win, name, klass
    tk_call 'option', 'get', win ,name, klass
  end
  def readfile file, pri=None
    tk_call 'option', 'readfile', file, pri
  end
  module_function :add, :clear, :get, :readfile
end

module TkTreatFont
  def font_configinfo
    ret = TkFont.used_on(self.path)
    if ret == nil
      ret = TkFont.init_widget_font(self.path, self.path, 'configure')
    end
    ret
  end
  alias fontobj font_configinfo

  def font_configure(slot)
    if (fnt = slot['font'])
      slot['font'] = nil
      if fnt.kind_of? TkFont
	return fnt.call_font_configure(self.path, self.path,'configure',slot)
      else
	latinfont_configure(fnt) if fnt
      end
    end
    if (ltn = slot['latinfont'])
      slot['latinfont'] = nil
      latinfont_configure(ltn) if ltn
    end
    if (ltn = slot['asciifont'])
      slot['asciifont'] = nil
      latinfont_configure(ltn) if ltn
    end
    if (knj = slot['kanjifont'])
      slot['kanjifont'] = nil
      kanjifont_configure(knj) if knj
    end

    tk_call(self.path, 'configure', *hash_kv(slot)) if slot != {}
    self
  end

  def latinfont_configure(ltn, keys=nil)
    fobj = fontobj
    if ltn.kind_of? TkFont
      conf = {}
      ltn.latin_configinfo.each{|key,val| conf[key] = val}
      if keys
	fobj.latin_configure(conf.update(keys))
      else
	fobj.latin_configure(conf)
      end
    else
      fobj.latin_replace(ltn)
    end
  end
  alias asciifont_configure latinfont_configure

  def kanjifont_configure(knj, keys=nil)
    fobj = fontobj
    if knj.kind_of? TkFont
      conf = {}
      knj.kanji_configinfo.each{|key,val| conf[key] = val}
      if keys
	fobj.kanji_configure(conf.update(keys))
      else
	fobj.kanji_configure(cond)
      end
    else
      fobj.kanji_replace(knj)
    end
  end

  def font_copy(window, tag=nil)
    if tag
      window.tagfontobj(tag).configinfo.each{|key,value|
	fontobj.configure(key,value)
      }
      fontobj.replace(window.tagfontobj(tag).latin_font, 
		      window.tagfontobj(tag).kanji_font)
    else
      window.fontobj.configinfo.each{|key,value|
	fontobj.configure(key,value)
      }
      fontobj.replace(window.fontobj.latin_font, window.fontobj.kanji_font)
    end
  end

  def latinfont_copy(window, tag=nil)
    if tag
      fontobj.latin_replace(window.tagfontobj(tag).latin_font)
    else
      fontobj.latin_replace(window.fontobj.latin_font)
    end
  end
  alias asciifont_copy latinfont_copy

  def kanjifont_copy(window, tag=nil)
    if tag
      fontobj.kanji_replace(window.tagfontobj(tag).kanji_font)
    else
      fontobj.kanji_replace(window.fontobj.kanji_font)
    end
  end
end

class TkObject<TkKernel
  include Tk
  include TkTreatFont

  def path
    return @path
  end

  def epath
    return @path
  end

  def to_eval
    @path
  end

  def tk_send(cmd, *rest)
    tk_call path, cmd, *rest
  end
  private :tk_send

  def method_missing(id, *args)
    name = id.id2name
    case args.length
    when 1
      configure name, args[0]
    when 0
      fail NameError, "undefined local variable or method `#{name}' for #{self.to_s}", error_at
    else
      fail NameError, "undefined method `#{name}' for #{self.to_s}", error_at
    end
  end

  def [](id)
    cget id
  end

  def []=(id, val)
    configure id, val
  end

  def cget(slot)
    tk_tcl2ruby tk_call path, 'cget', "-#{slot}"
  end

  def configure(slot, value=None)
    if slot.kind_of? Hash
      if ( slot['font'] || slot['kanjifont'] \
	  || slot['latinfont'] || slot['asciifont'] )
	font_configure(slot.dup)
      else
	tk_call path, 'configure', *hash_kv(slot)
      end

    else
      if ( slot == 'font' || slot == 'kanjifont' \
	  || slot == 'latinfont' || slot == 'asciifont' )
	font_configure({slot=>value})
      else
	tk_call path, 'configure', "-#{slot}", value
      end
    end
  end

  def configure_cmd(slot, value)
    configure slot, install_cmd(value)
  end

  def configinfo(slot = nil)
    if slot == 'font' || slot == 'kanjifont'
      fontobj

    else
      if slot
	conf = tk_split_list(tk_send('configure', "-#{slot}") )
	conf[0] = conf[0][1..-1]
	conf

      else
	ret = tk_split_list(tk_send('configure') ).collect{|conf|
	  conf[0] = conf[0][1..-1]
	  conf
	}
	if ret.assoc('font')
	  ret.delete_if{|item| item[0] == 'font' || item[0] == 'kanjifont'}
	  ret.push(['font', fontobj])
	else
	  ret
	end
      end
    end
  end

  def bind(context, cmd=Proc.new, args=nil)
    _bind path, context, cmd, args
  end

  def bind_append(context, cmd=Proc.new, args=nil)
    _bind_append path, context, cmd, args
  end

  def bindinfo(context=nil)
    _bindinfo path, context
  end

  def event_generate(context, keys=nil)
    if keys
      tk_call('event', 'generate', path, 
	      "<#{tk_event_sequence(context)}>", *hash_kv(keys))
    else
      tk_call('event', 'generate', path, "<#{tk_event_sequence(context)}>")
    end
  end

  def tk_trace_variable(v)
    unless v.kind_of?(TkVariable)
      fail ArgumentError, format("requires TkVariable given %s", v.type)
    end
    v
  end
  private :tk_trace_variable

  def destroy
    tk_call 'trace', 'vdelete', @tk_vn, 'w', @var_id if @var_id
  end
end

module TkClassBind
  WidgetClassNameTBL = {}

  def TkClassBind.name2class(name)
    WidgetClassNameTBL[name]
  end

  def bind(context, cmd=Proc.new, args=nil)
    Tk.bind to_eval, context, cmd, args
  end

  def bind_append(context, cmd=Proc.new, args=nil)
    Tk.bind_append to_eval, context, cmd, args
  end

  def bindinfo(context=nil)
    Tk.bindinfo to_eval, context
  end
end

class TkWindow<TkObject
  extend TkClassBind

  def initialize(parent=nil, keys=nil)
    install_win(if parent then parent.path end)
    create_self
    if keys
      # tk_call @path, 'configure', *hash_kv(keys)
      configure(keys)
    end
  end

  def create_self
  end
  private :create_self

  def pack(keys = nil)
    tk_call 'pack', epath, *hash_kv(keys)
    self
  end

  def unpack(keys = nil)
    tk_call 'pack', 'forget', epath
    self
  end

  def grid(keys = nil)
    tk_call 'grid', epath, *hash_kv(keys)
    self
  end

  def ungrid(keys = nil)
    tk_call 'grid', 'forget', epath
    self
  end

  def place(keys = nil)
    tk_call 'place', epath, *hash_kv(keys)
    self
  end

  def unplace(keys = nil)
    tk_call 'place', 'forget', epath, *hash_kv(keys)
    self
  end
  alias place_forget unplace

  def place_config(keys)
    tk_call "place", 'configure', epath, *hash_kv(keys)
  end

  def place_info()
    ilist = list(tk_call('place', 'info', epath))
    info = {}
    while key = ilist.shift
      info[key[1..-1]] = ilist.shift
    end
    return info
  end

  def pack_slaves()
    list(tk_call('pack', 'slaves', epath))
  end

  def pack_info()
    ilist = list(tk_call('pack', 'info', epath))
    info = {}
    while key = ilist.shift
      info[key[1..-1]] = ilist.shift
    end
    return info
  end

  def place_slaves()
    list(tk_call('place', 'slaves', epath))
  end

  def focus(force=false)
    if force
      tk_call 'focus', '-force', path
    else
      tk_call 'focus', path
    end
    self
  end

  def grab(*args)
    if !args or args.length == 0
      tk_call 'grab', 'set', path
    elsif args.length == 1
      case args[0]
      when 'global'
	tk_call 'grab', 'set', '-global', path
      else
	val = tk_call('grab', args[0], path)
      end
      case args[0]
      when 'current'
	return window(val)
      when 'status'
	return val
      end
    else
      fail ArgumentError, 'wrong # of args'
    end
  end

  def lower(below=None)
    tk_call 'lower', path, below
    self
  end
  def raise(above=None)
    tk_call 'raise', path, above
    self
  end

  def command(cmd=Proc.new)
    configure_cmd 'command', cmd
  end

  def colormodel model=None
    tk_call 'tk', 'colormodel', path, model
    self
  end

  def destroy
    tk_call 'destroy', path
    if @cmdtbl
      for id in @cmdtbl
	uninstall_cmd id
      end
    end
    uninstall_win
  end

  def wait_visibility
    tk_call 'tkwait', 'visibility', path
  end
  alias wait wait_visibility

  def wait_destroy
    tk_call 'tkwait', 'window', path
  end

  def bindtags(taglist=nil)
    if taglist
      fail unless taglist.kind_of? Array
      tk_call('bindtags', path, taglist)
    else
      tk_split_list(tk_call('bindtags', path)).collect{|tag|
	if tag == nil
	  '.'
	elsif tag.kind_of?(String) && (cls = TkClassBind.name2class(tag))
	  cls
	else
	  tag
	end
      }
    end
  end
end

class TkRoot<TkWindow
  include Wm
  ROOT = []
  def TkRoot.new
    return ROOT[0] if ROOT[0]
    new = super
    ROOT[0] = new
    Tk_WINDOWS["."] = new
  end

  WidgetClassName = 'Tk'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def create_self
    @path = '.'
  end
  def path
    "."
  end
end

class TkToplevel<TkWindow
  include Wm

  WidgetClassName = 'Toplevel'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def initialize(parent=nil, screen=nil, classname=nil, keys=nil)
    if screen.kind_of? Hash
      keys = screen.dup
    else
      @screen = screen
    end
    @classname = classname
    if keys.kind_of? Hash
      keys = keys.dup
      if keys['classname']
	@classname = keys['classname']
	keys['classname'] = nil
      end
      if keys['colormap']
	@colormap = keys['colormap']
	keys['colormap'] = nil
      end
      if keys['container']
	@classname = keys['container']
	keys['classname'] = nil
      end
      if keys['screen']
	@screen = keys['screen']
	keys['screen'] = nil
      end
      if keys['use']
	@use = keys['use']
	keys['use'] = nil
      end
      if keys['visual']
	@screen = keys['visual']
	keys['visual'] = nil
      end
    end
    super(parent, keys)
  end

  def create_self
    s = []
    s.push << "-class"     << @classname if @classname
    s.push << "-colormap"  << @colormap  if @colormap
    s.push << "-container" << @container if @container
    s.push << "-screen"    << @screen    if @screen 
    s.push << "-use"       << @use       if @use
    s.push << "-visual"    << @visual    if @visual
    tk_call 'toplevel', @path, *s
  end

  def specific_class
    @classname
  end
end

class TkFrame<TkWindow
  WidgetClassName = 'Frame'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def initialize(parent=nil, keys=nil)
    if keys.kind_of? Hash
      keys = keys.dup
      if keys['classname']
	@classname = keys['classname']
	keys['classname'] = nil
      end
      if keys['colormap']
	@colormap = keys['colormap']
	keys['colormap'] = nil
      end
      if keys['container']
      @classname = keys['container']
	keys['classname'] = nil
      end
      if keys['visual']
	@screen = keys['visual']
	keys['visual'] = nil
      end
    end
    super(parent, keys)
  end

  def create_self
    s = []
    s.push << "-class"     << @classname if @classname
    s.push << "-colormap"  << @colormap  if @colormap
    s.push << "-container" << @container if @container
    s.push << "-visual"    << @visual    if @visual
    tk_call 'frame', @path, *s
  end
end

class TkLabel<TkWindow
  WidgetClassName = 'Label'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end
  def create_self
    tk_call 'label', @path
  end
  def textvariable(v)
    configure 'textvariable', tk_trace_variable(v)
  end
end

class TkButton<TkLabel
  WidgetClassName = 'Button'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
#  def TkButton.to_eval
  def self.to_eval
    WidgetClassName
  end
  def create_self
    tk_call 'button', @path
  end
  def invoke
    tk_send 'invoke'
  end
  def flash
    tk_send 'flash'
  end
end

class TkRadioButton<TkButton
  WidgetClassName = 'Radiobutton'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def TkRadioButton.to_eval
    WidgetClassName
  end
  def create_self
    tk_call 'radiobutton', @path
  end
  def deselect
    tk_send 'deselect'
  end
  def select
    tk_send 'select'
  end
  def variable(v)
    configure 'variable', tk_trace_variable(v)
  end
end

class TkCheckButton<TkRadioButton
  TkClassBind::WidgetClassNameTBL['Checkbutton'] = self
  def TkCheckButton.to_eval
    'Checkbutton'
  end
  def create_self
    tk_call 'checkbutton', @path
  end
  def toggle
    tk_send 'toggle'
  end
end

class TkMessage<TkLabel
  TkClassBind::WidgetClassNameTBL['Message'] = self
  def TkMessage.to_eval
    'Message'
  end
  def create_self
    tk_call 'message', @path
  end
end

class TkScale<TkWindow
  WidgetClassName = 'Scale'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def create_self
    tk_call 'scale', path
  end

  def get
    number(tk_send('get'))
  end

  def set(val)
    tk_send "set", val
  end

  def value
    get
  end

  def value= (val)
    set val
  end
end

class TkScrollbar<TkWindow
  WidgetClassName = 'Scrollbar'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end

  def create_self
    tk_call 'scrollbar', path
  end

  def delta(deltax=None, deltay=None)
    number(tk_send('delta', deltax, deltay))
  end

  def fraction(x=None, y=None)
    number(tk_send('fraction', x, y))
  end

  def identify(x=None, y=None)
    tk_send('fraction', x, y)
  end

  def get
    ary1 = tk_send('get', path).split
    ary2 = []
    for i in ary1
      ary2.push number(i)
    end
    ary2
  end

  def set(first, last)
    tk_send "set", first, last
  end
end

class TkTextWin<TkWindow
  def create_self
    raise TypeError, "TkTextWin is abstract class"
  end

  def bbox(index)
    tk_send 'bbox', index
  end
  def delete(first, last=None)
    tk_send 'delete', first, last
  end
  def get(*index)
    tk_send 'get', *index
  end
  def index(index)
    tk_send 'index', index
  end
  def insert(index, chars, *args)
    tk_send 'insert', index, chars, *args
  end
  def scan_mark(x, y)
    tk_send 'scan', 'mark', x, y
  end
  def scan_dragto(x, y)
    tk_send 'scan', 'dragto', x, y
  end
  def see(index)
    tk_send 'see', index
  end
end

class TkListbox<TkTextWin
  TkClassBind::WidgetClassNameTBL['Listbox'] = self
  def TkListbox.to_eval
    'Listbox'
  end
  def create_self
    tk_call 'listbox', path
  end

  def activate(y)
    tk_send 'activate', y
  end
  def curselection
    list(tk_send('curselection'))
  end
  def nearest(y)
    tk_send('nearest', y).to_i
  end
  def size(y)
    tk_send('size').to_i
  end
  def selection_anchor(index)
    tk_send 'selection', 'anchor', index
  end
  def selection_clear(first, last=None)
    tk_send 'selection', 'clear', first, last
  end
  def selection_includes
    bool(tk_send('selection', 'includes'))
  end
  def selection_set(first, last=None)
    tk_send 'selection', 'set', first, last
  end
  def xview(cmd, index, *more)
    v = tk_send('xview', cmd, index, *more)
    v.to_i if more.size == 0
  end
  def yview(cmd, index, *more)
    v = tk_send('yview', cmd, index, *more)
    v.to_i if more.size == 0
  end
end

module TkTreatMenuEntryFont
  def tagfont_configinfo(index)
    pathname = self.path + ';' + index
    ret = TkFont.used_on(pathname)
    if ret == nil
      ret = TkFont.init_widget_font(pathname, 
				    self.path, 'entryconfigure', index)
    end
    ret
  end
  alias tagfontobj tagfont_configinfo

  def tagfont_configure(index, slot)
    pathname = self.path + ';' + index
    if (fnt = slot['font'])
      slot['font'] = nil
      if fnt.kind_of? TkFont
	return fnt.call_font_configure(pathname, 
				       self.path,'entryconfigure',index,slot)
      else
	latintagfont_configure(index, fnt) if fnt
      end
    end
    if (ltn = slot['latinfont'])
      slot['latinfont'] = nil
      latintagfont_configure(index, ltn) if ltn
    end
    if (ltn = slot['asciifont'])
      slot['asciifont'] = nil
      latintagfont_configure(index, ltn) if ltn
    end
    if (knj = slot['kanjifont'])
      slot['kanjifont'] = nil
      kanjitagfont_configure(index, knj) if knj
    end

    tk_call(self.path, 'entryconfigure', index, *hash_kv(slot)) if slot != {}
    self
  end

  def latintagfont_configure(index, ltn, keys=nil)
    fobj = tagfontobj(index)
    if ltn.kind_of? TkFont
      conf = {}
      ltn.latin_configinfo.each{|key,val| conf[key] = val if val != []}
      if conf == {}
	fobj.latin_replace(ltn)
	fobj.latin_configure(keys) if keys
      elsif keys
	fobj.latin_configure(conf.update(keys))
      else
	fobj.latin_configure(conf)
      end
    else
      fobj.latin_replace(ltn)
    end
  end
  alias asciitagfont_configure latintagfont_configure

  def kanjitagfont_configure(index, knj, keys=nil)
    fobj = tagfontobj(index)
    if knj.kind_of? TkFont
      conf = {}
      knj.kanji_configinfo.each{|key,val| conf[key] = val if val != []}
      if conf == {}
	fobj.kanji_replace(knj)
	fobj.kanji_configure(keys) if keys
      elsif keys
	fobj.kanji_configure(conf.update(keys))
      else
	fobj.kanji_configure(conf)
      end
    else
      fobj.kanji_replace(knj)
    end
  end

  def tagfont_copy(index, window, wintag=nil)
    if wintag
      window.tagfontobj(wintag).configinfo.each{|key,value|
	tagfontobj(index).configure(key,value)
      }
      tagfontobj(index).replace(window.tagfontobj(wintag).latin_font, 
			      window.tagfontobj(wintag).kanji_font)
    else
      window.tagfont(wintag).configinfo.each{|key,value|
	tagfontobj(index).configure(key,value)
      }
      tagfontobj(index).replace(window.fontobj.latin_font, 
			      window.fontobj.kanji_font)
    end
  end

  def latintagfont_copy(index, window, wintag=nil)
    if wintag
      tagfontobj(index).latin_replace(window.tagfontobj(wintag).latin_font)
    else
      tagfontobj(index).latin_replace(window.fontobj.latin_font)
    end
  end
  alias asciitagfont_copy latintagfont_copy

  def kanjitagfont_copy(index, window, wintag=nil)
    if wintag
      tagfontobj(index).kanji_replace(window.tagfontobj(wintag).kanji_font)
    else
      tagfontobj(index).kanji_replace(window.fontobj.kanji_font)
    end
  end
end

class TkMenu<TkWindow
  include TkTreatMenuEntryFont

  WidgetClassName = 'Menu'.freeze
  TkClassBind::WidgetClassNameTBL[WidgetClassName] = self
  def self.to_eval
    WidgetClassName
  end
  def create_self
    tk_call 'menu', path
  end
  def activate(index)
    tk_send 'activate', index
  end
  def add(type, keys=nil)
    tk_send 'add', type, *hash_kv(keys)
  end
  def index(index)
    tk_send 'index', index
  end
  def invoke(index)
    tk_send 'invoke', index
  end
  def insert(index, type, keys=nil)
    tk_send 'add', index, type, *hash_kv(keys)
  end
  def delete(index, last=None)
    tk_send 'delete', index, last
  end
  def post(x, y)
    tk_send 'post', x, y
  end
  def postcascade(index)
    tk_send 'postcascade', index
  end
  def postcommand(cmd=Proc.new)
    configure_cmd 'postcommand', cmd
  end
  def menutype(index)
    tk_send 'type', index
  end
  def unpost
    tk_send 'unpost'
  end
  def yposition(index)
    number(tk_send('yposition', index))
  end
  def entryconfigure(index, keys=nil)
    tk_send 'entryconfigure', index, *hash_kv(keys)
  end
#  def entryconfigure(index, keys=nil)
#    tk_send 'entryconfigure', index, *hash_kv(keys)
#  end
  def entrycget(index, key)
    tk_tcl2ruby tk_send 'entrycget', index, "-#{key}"
  end
  def entryconfigure(index, key, val=None)
    if key.kind_of? Hash
      if ( key['font'] || key['kanjifont'] \
	  || key['latinfont'] || key['asciifont'] )
	tagfont_configure(index, key.dup)
      else
	tk_send 'entryconfigure', index, *hash_kv(key)
      end

    else
      if ( key == 'font' || key == 'kanjifont' \
	  || key == 'latinfont' || key == 'asciifont' )
	tagfont_configure({key=>val})
      else
	tk_call 'entryconfigure', index, "-#{key}", val
      end
    end
  end

  def entryconfiginfo(index, key=nil)
    if key
      conf = tk_split_list(tk_send('entryconfigure',index,"-#{key}"))
      conf[0] = conf[0][1..-1]
      conf
    else
      tk_split_list(tk_send('entryconfigure', index)).collect{|conf|
	conf[0] = conf[0][1..-1]
	conf
      }
    end
  end
end

class TkMenubutton<TkLabel
  TkClassBind::WidgetClassNameTBL['Menubutton'] = self
  def TkMenubutton.to_eval
    'Menubutton'
  end
  def create_self
    tk_call 'menubutton', path
  end
end

module TkComposite
  def initialize(parent=nil, *args)
    @frame = TkFrame.new(parent)
    @path = @epath = @frame.path
    initialize_composite(*args)
  end

  def epath
    @epath
  end

  def initialize_composite(*args) end
  private :initialize_composite

  def delegate(option, *wins)
    unless @delegates
      @delegates = {} 
      @delegates['DEFAULT'] = @frame
    end
    if @delegates[option].kind_of?(Array)
      for i in wins
	@delegates[option].push(i)
      end
    else
      @delegates[option] = wins
    end
  end

  def configure(slot, value=None)
    if slot.kind_of? Hash
      slot.each{|slot,value| configure slot, value}
    else
      if @delegates and @delegates[slot]
	for i in @delegates[slot]
	  if not i
	    i = @delegates['DEFALUT']
	    redo
	  else
	    last = i.configure(slot, value)
	  end
	end
	last
      else
	super
      end
    end
  end
end

module TkClipboard
  include Tk
  extend Tk

  def clear
    tk_call 'clipboard', 'clear'
  end
  def get
    begin
      tk_call 'selection', 'get', '-selection', 'CLIPBOARD'
    rescue
      ''
    end
  end
  def set(data)
    clear
    append(data)
  end
  def append(data)
    tk_call 'clipboard', 'append', data
  end

  module_function :clear, :set, :get, :append
end

autoload :TkCanvas, 'tkcanvas'
autoload :TkImage, 'tkcanvas'
autoload :TkBitmapImage, 'tkcanvas'
autoload :TkPhotoImage, 'tkcanvas'
autoload :TkEntry, 'tkentry'
autoload :TkText, 'tktext'
autoload :TkDialog, 'tkdialog'
autoload :TkMenubar, 'tkmenubar'
autoload :TkAfter, 'tkafter'
autoload :TkPalette, 'tkpalette'
autoload :TkFont, 'tkfont'
autoload :TkVirtualEvent, 'tkvirtevent'