summaryrefslogtreecommitdiff
path: root/settings_gui.c
blob: 5833635e18148da81a808e759bbda150fe0482c0 (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
#include "stdafx.h"
#include "openttd.h"
#include "string.h"
#include "strings.h" // XXX GetCurrentCurrencyRate()
#include "table/sprites.h"
#include "table/strings.h"
#include "window.h"
#include "gui.h"
#include "gfx.h"
#include "command.h"
#include "engine.h"
#include "screenshot.h"
#include "newgrf.h"
#include "network.h"
#include "console.h"
#include "town.h"

static uint32 _difficulty_click_a;
static uint32 _difficulty_click_b;
static byte _difficulty_timeout;

extern const StringID _currency_string_list[];
extern uint GetMaskOfAllowedCurrencies(void);

static const StringID _distances_dropdown[] = {
	STR_0139_IMPERIAL_MILES,
	STR_013A_METRIC_KILOMETERS,
	INVALID_STRING_ID
};

static const StringID _driveside_dropdown[] = {
	STR_02E9_DRIVE_ON_LEFT,
	STR_02EA_DRIVE_ON_RIGHT,
	INVALID_STRING_ID
};

static const StringID _autosave_dropdown[] = {
	STR_02F7_OFF,
	STR_AUTOSAVE_1_MONTH,
	STR_02F8_EVERY_3_MONTHS,
	STR_02F9_EVERY_6_MONTHS,
	STR_02FA_EVERY_12_MONTHS,
	INVALID_STRING_ID,
};

static const StringID _designnames_dropdown[] = {
	STR_02BE_DEFAULT,
	STR_02BF_CUSTOM,
	INVALID_STRING_ID
};

static StringID *BuildDynamicDropdown(StringID base, int num)
{
	static StringID buf[32 + 1];
	StringID *p = buf;
	while (--num>=0) *p++ = base++;
	*p = INVALID_STRING_ID;
	return buf;
}

static int GetCurRes(void)
{
	int i;
	for(i = 0; i != _num_resolutions; i++)
		if (_resolutions[i][0] == _screen.width &&
				_resolutions[i][1] == _screen.height)
			break;
	return i;
}

static inline bool RoadVehiclesAreBuilt(void)
{
	const Vehicle *v;
	FOR_ALL_VEHICLES(v) {
		if (v->type == VEH_Road) return true;
	}
	return false;
}

static void GameOptionsWndProc(Window *w, WindowEvent *e)
{
	switch (e->event) {
	case WE_PAINT: {
		int i;
		StringID str = STR_02BE_DEFAULT;
		w->disabled_state = (_vehicle_design_names & 1) ? (++str, 0) : (1 << 21);
		SetDParam(0, str);
		SetDParam(1, _currency_string_list[_opt_ptr->currency]);
		SetDParam(2, _opt_ptr->kilometers + STR_0139_IMPERIAL_MILES);
		SetDParam(3, STR_02E9_DRIVE_ON_LEFT + _opt_ptr->road_side);
		SetDParam(4, STR_TOWNNAME_ORIGINAL_ENGLISH + _opt_ptr->town_name);
		SetDParam(5, _autosave_dropdown[_opt_ptr->autosave]);
		SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);
		i = GetCurRes();
		SetDParam(7, i == _num_resolutions ? STR_RES_OTHER : SPECSTR_RESOLUTION_START + i);
		SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);
		(_fullscreen) ? SETBIT(w->click_state, 28) : CLRBIT(w->click_state, 28); // fullscreen button

		DrawWindowWidgets(w);
		DrawString(20, 175, STR_OPTIONS_FULLSCREEN, 0); // fullscreen
	}	break;

	case WE_CLICK:
		switch (e->click.widget) {
		case 4: case 5: /* Setup currencies dropdown */
			ShowDropDownMenu(w, _currency_string_list, _opt_ptr->currency, 5, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);
			return;
		case 7: case 8: /* Setup distance unit dropdown */
			ShowDropDownMenu(w, _distances_dropdown, _opt_ptr->kilometers, 8, 0, 0);
			return;
		case 10: case 11: { /* Setup road-side dropdown */
			int i = 0;

			/* You can only change the drive side if you are in the menu or ingame with
			 * no vehicles present. In a networking game only the server can change it */
			if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server))
				i = (-1) ^ (1 << _opt_ptr->road_side); // disable the other value

			ShowDropDownMenu(w, _driveside_dropdown, _opt_ptr->road_side, 11, i, 0);
		} return;
		case 13: case 14: { /* Setup townname dropdown */
			int i = _opt_ptr->town_name;
			ShowDropDownMenu(w, BuildDynamicDropdown(STR_TOWNNAME_ORIGINAL_ENGLISH, SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1), i, 14, (_game_mode == GM_MENU) ? 0 : (-1) ^ (1 << i), 0);
			return;
		}
		case 16: case 17: /* Setup autosave dropdown */
			ShowDropDownMenu(w, _autosave_dropdown, _opt_ptr->autosave, 17, 0, 0);
			return;
		case 19: case 20: /* Setup customized vehicle-names dropdown */
			ShowDropDownMenu(w, _designnames_dropdown, (_vehicle_design_names & 1) ? 1 : 0, 20, (_vehicle_design_names & 2) ? 0 : 2, 0);
			return;
		case 21: /* Save customized vehicle-names to disk */
			return;
		case 23: case 24: /* Setup interface language dropdown */
			ShowDropDownMenu(w, _dynlang.dropdown, _dynlang.curr, 24, 0, 0);
			return;
		case 26: case 27: /* Setup resolution dropdown */
			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_RESOLUTION_START, _num_resolutions), GetCurRes(), 27, 0, 0);
			return;
		case 28: /* Click fullscreen on/off */
			(_fullscreen) ? CLRBIT(w->click_state, 28) : SETBIT(w->click_state, 28);
			ToggleFullScreen(!_fullscreen); // toggle full-screen on/off
			SetWindowDirty(w);
			return;
		case 30: case 31: /* Setup screenshot format dropdown */
			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_SCREENSHOT_START, _num_screenshot_formats), _cur_screenshot_format, 31, 0, 0);
			return;
		}
		break;

	case WE_DROPDOWN_SELECT:
		switch (e->dropdown.button) {
		case 20: /* Vehicle design names */
			if (e->dropdown.index == 0) {
				DeleteCustomEngineNames();
				MarkWholeScreenDirty();
			} else if (!(_vehicle_design_names & 1)) {
				LoadCustomEngineNames();
				MarkWholeScreenDirty();
			}
			break;
		case 5: /* Currency */
			if (e->dropdown.index == 23)
				ShowCustCurrency();
			_opt_ptr->currency = e->dropdown.index;
			MarkWholeScreenDirty();
			break;
		case 8: /* Distance units */
			_opt_ptr->kilometers = e->dropdown.index;
			MarkWholeScreenDirty();
			break;
		case 11: /* Road side */
			if (_opt_ptr->road_side != e->dropdown.index) { // only change if setting changed
				DoCommandP(0, e->dropdown.index, 0, NULL, CMD_SET_ROAD_DRIVE_SIDE | CMD_MSG(STR_00B4_CAN_T_DO_THIS));
				MarkWholeScreenDirty();
			}
			break;
		case 14: /* Town names */
			if (_game_mode == GM_MENU) {
				_opt_ptr->town_name = e->dropdown.index;
				InvalidateWindow(WC_GAME_OPTIONS, 0);
			}
			break;
		case 17: /* Autosave options */
			_opt_ptr->autosave = e->dropdown.index;
			SetWindowDirty(w);
			break;
		case 24: /* Change interface language */
			ReadLanguagePack(e->dropdown.index);
			MarkWholeScreenDirty();
			break;
		case 27: /* Change resolution */
			if (e->dropdown.index < _num_resolutions && ChangeResInGame(_resolutions[e->dropdown.index][0],_resolutions[e->dropdown.index][1]))
				SetWindowDirty(w);
			break;
		case 31: /* Change screenshot format */
			SetScreenshotFormat(e->dropdown.index);
			SetWindowDirty(w);
			break;
		}
		break;

	case WE_DESTROY:
		DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
		break;
	}

}

/** Change the side of the road vehicles drive on (server only).
 * @param x,y unused
 * @param p1 the side of the road; 0 = left side and 1 = right side
 * @param p2 unused
 */
int32 CmdSetRoadDriveSide(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
	/* Check boundaries and you can only change this if NO vehicles have been built yet,
	 * except in the intro-menu where of course it's always possible to do so. */
	if (p1 > 1 || (_game_mode != GM_MENU && RoadVehiclesAreBuilt())) return CMD_ERROR;

	if (flags & DC_EXEC) {
		_opt_ptr->road_side = p1;
		InvalidateWindow(WC_GAME_OPTIONS,0);
	}
	return 0;
}

static const Widget _game_options_widgets[] = {
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,								STR_018B_CLOSE_WINDOW},
{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   369,     0,    13, STR_00B1_GAME_OPTIONS,		STR_018C_WINDOW_TITLE_DRAG_THIS},
{      WWT_PANEL,   RESIZE_NONE,    14,     0,   369,    14,   238, 0x0,											STR_NULL},
{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,    20,    55, STR_02E0_CURRENCY_UNITS,	STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,    20,   169,    34,    45, STR_02E1,								STR_02E2_CURRENCY_UNITS_SELECTION},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   158,   168,    35,    44, STR_0225,								STR_02E2_CURRENCY_UNITS_SELECTION},
{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,    20,    55, STR_02E3_DISTANCE_UNITS,	STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,   200,   349,    34,    45, STR_02E4,								STR_02E5_DISTANCE_UNITS_SELECTION},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   338,   348,    35,    44, STR_0225,								STR_02E5_DISTANCE_UNITS_SELECTION},
{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,    62,    97, STR_02E6_ROAD_VEHICLES,	STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,    20,   169,    76,    87, STR_02E7,								STR_02E8_SELECT_SIDE_OF_ROAD_FOR},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   158,   168,    77,    86, STR_0225,								STR_02E8_SELECT_SIDE_OF_ROAD_FOR},
{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,    62,    97, STR_02EB_TOWN_NAMES,			STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,   200,   349,    76,    87, STR_02EC,								STR_02ED_SELECT_STYLE_OF_TOWN_NAMES},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   338,   348,    77,    86, STR_0225,								STR_02ED_SELECT_STYLE_OF_TOWN_NAMES},
{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,   104,   139, STR_02F4_AUTOSAVE,				STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,    20,   169,   118,   129, STR_02F5,								STR_02F6_SELECT_INTERVAL_BETWEEN},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   158,   168,   119,   128, STR_0225,								STR_02F6_SELECT_INTERVAL_BETWEEN},

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   359,   194,   228, STR_02BC_VEHICLE_DESIGN_NAMES,				STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,    20,   119,   207,   218, STR_02BD,								STR_02C1_VEHICLE_DESIGN_NAMES_SELECTION},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   108,   118,   208,   217, STR_0225,								STR_02C1_VEHICLE_DESIGN_NAMES_SELECTION},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   130,   349,   207,   218, STR_02C0_SAVE_CUSTOM_NAMES,	STR_02C2_SAVE_CUSTOMIZED_VEHICLE},

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,   104,   139, STR_OPTIONS_LANG,				STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,   200,   349,   118,   129, STR_OPTIONS_LANG_CBO,		STR_OPTIONS_LANG_TIP},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   338,   348,   119,   128, STR_0225,								STR_OPTIONS_LANG_TIP},

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,   146,   190, STR_OPTIONS_RES,					STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,    20,   169,   160,   171, STR_OPTIONS_RES_CBO,			STR_OPTIONS_RES_TIP},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   158,   168,   161,   170, STR_0225,								STR_OPTIONS_RES_TIP},
{    WWT_TEXTBTN,   RESIZE_NONE,    14,   149,   169,   176,   184, STR_EMPTY,								STR_OPTIONS_FULLSCREEN_TIP},

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,   146,   190, STR_OPTIONS_SCREENSHOT_FORMAT,				STR_NULL},
{          WWT_6,   RESIZE_NONE,    14,   200,   349,   160,   171, STR_OPTIONS_SCREENSHOT_FORMAT_CBO,		STR_OPTIONS_SCREENSHOT_FORMAT_TIP},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   338,   348,   161,   170, STR_0225,								STR_OPTIONS_SCREENSHOT_FORMAT_TIP},

{   WIDGETS_END},
};

static const WindowDesc _game_options_desc = {
	WDP_CENTER, WDP_CENTER, 370, 239,
	WC_GAME_OPTIONS,0,
	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,
	_game_options_widgets,
	GameOptionsWndProc
};


void ShowGameOptions(void)
{
	DeleteWindowById(WC_GAME_OPTIONS, 0);
	AllocateWindowDesc(&_game_options_desc);
}

typedef struct {
	int16 min;
	int16 max;
	int16 step;
	StringID str;
} GameSettingData;

static const GameSettingData _game_setting_info[] = {
	{  0,   7,  1, STR_NULL},
	{  0,   3,  1, STR_6830_IMMEDIATE},
	{  0,   2,  1, STR_6816_LOW},
	{  0,   3,  1, STR_26816_NONE},
	{100, 500, 50, STR_NULL},
	{  2,   4,  1, STR_NULL},
	{  0,   2,  1, STR_6820_LOW},
	{  0,   4,  1, STR_681B_VERY_SLOW},
	{  0,   2,  1, STR_6820_LOW},
	{  0,   2,  1, STR_6823_NONE},
	{  0,   3,  1, STR_6826_X1_5},
	{  0,   2,  1, STR_6820_LOW},
	{  0,   3,  1, STR_682A_VERY_FLAT},
	{  0,   3,  1, STR_VERY_LOW},
	{  0,   1,  1, STR_682E_STEADY},
	{  0,   1,  1, STR_6834_AT_END_OF_LINE_AND_AT_STATIONS},
	{  0,   1,  1, STR_6836_OFF},
	{  0,   2,  1, STR_6839_PERMISSIVE},
};

static inline bool GetBitAndShift(uint32 *b)
{
	uint32 x = *b;
	*b >>= 1;
	return HASBIT(x, 0);
}

/*
	A: competitors
	B: start time in months / 3
	C: town count (2 = high, 0 = low)
	D: industry count (3 = high, 0 = none)
	E: inital loan / 1000 (in GBP)
	F: interest rate
	G: running costs (0 = low, 2 = high)
	H: construction speed of competitors (0 = very slow, 4 = very fast)
	I: intelligence (0-2)
	J: breakdowns(0 = off, 2 = normal)
	K: subsidy multiplier (0 = 1.5, 3 = 4.0)
	L: construction cost (0-2)
	M: terrain type (0 = very flat, 3 = mountainous)
	N: amount of water (0 = very low, 3 = high)
	O: economy (0 = steady, 1 = fluctuating)
	P: Train reversing (0 = end of line + stations, 1 = end of line)
	Q: disasters
	R: area restructuring (0 = permissive, 2 = hostile)
*/
static const int16 _default_game_diff[3][GAME_DIFFICULTY_NUM] = { /*
	 A, B, C, D,   E, F, G, H, I, J, K, L, M, N, O, P, Q, R*/
	{2, 2, 1, 3, 300, 2, 0, 2, 0, 1, 2, 0, 1, 0, 0, 0, 0, 0},	//easy
	{4, 1, 1, 2, 150, 3, 1, 3, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1},	//medium
	{7, 0, 2, 2, 100, 4, 1, 3, 2, 2, 0, 2, 3, 2, 1, 1, 1, 2},	//hard
};

void SetDifficultyLevel(int mode, GameOptions *gm_opt)
{
	int i;
	assert(mode <= 3);

	gm_opt->diff_level = mode;
	if (mode != 3) { // not custom
		for (i = 0; i != GAME_DIFFICULTY_NUM; i++)
			((int*)&gm_opt->diff)[i] = _default_game_diff[mode][i];
	}
}

extern void StartupEconomy(void);

enum {
	GAMEDIFF_WND_TOP_OFFSET = 45,
	GAMEDIFF_WND_ROWSIZE    = 9
};

// Temporary holding place of values in the difficulty window until 'Save' is clicked
static GameOptions _opt_mod_temp;
// 0x383E = (1 << 13) | (1 << 12) | (1 << 11) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1)
#define DIFF_INGAME_DISABLED_BUTTONS 0x383E

static void GameDifficultyWndProc(Window *w, WindowEvent *e)
{
	switch (e->event) {
		case WE_CREATE: /* Setup disabled buttons when creating window */
		// disable all other difficulty buttons during gameplay except for 'custom'
		w->disabled_state = (_game_mode != GM_NORMAL) ? 0 : (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);

		if (_game_mode == GM_EDITOR) SETBIT(w->disabled_state, 7);

		if (_networking) {
			SETBIT(w->disabled_state, 7); // disable highscore chart in multiplayer
			if (!_network_server)
				SETBIT(w->disabled_state, 10); // Disable save-button in multiplayer (and if client)
		}
		break;
	case WE_PAINT: {
		uint32 click_a, click_b, disabled;
		int i;
		int y, value;

		w->click_state = (1 << 3) << _opt_mod_temp.diff_level; // have current difficulty button clicked
		DrawWindowWidgets(w);

		click_a = _difficulty_click_a;
		click_b = _difficulty_click_b;

		/* XXX - Disabled buttons in normal gameplay. Bitshifted for each button to see if
		 * that bit is set. If it is set, the button is disabled */
		disabled = (_game_mode == GM_NORMAL) ? DIFF_INGAME_DISABLED_BUTTONS : 0;

		y = GAMEDIFF_WND_TOP_OFFSET;
		for (i = 0; i != GAME_DIFFICULTY_NUM; i++) {
			DrawFrameRect( 5, y,  5 + 8, y + 8, 3, GetBitAndShift(&click_a) ? (1 << 5) : 0);
			DrawFrameRect(15, y, 15 + 8, y + 8, 3, GetBitAndShift(&click_b) ? (1 << 5) : 0);
			if (GetBitAndShift(&disabled) || (_networking && !_network_server)) {
				int color = PALETTE_MODIFIER_COLOR | _color_list[3].unk2;
				GfxFillRect( 6, y + 1,  6 + 8, y + 8, color);
				GfxFillRect(16, y + 1, 16 + 8, y + 8, color);
			}

			DrawStringCentered(10, y, STR_6819, 0);
			DrawStringCentered(20, y, STR_681A, 0);


			value = _game_setting_info[i].str + ((int*)&_opt_mod_temp.diff)[i];
			if (i == 4) value *= 1000; // XXX - handle currency option
			SetDParam(0, value);
			DrawString(30, y, STR_6805_MAXIMUM_NO_COMPETITORS + i, 0);

			y += GAMEDIFF_WND_ROWSIZE + 2; // space items apart a bit
		}
	} break;

	case WE_CLICK:
		switch (e->click.widget) {
		case 8: { /* Difficulty settings widget, decode click */
			const GameSettingData *info;
			int x, y;
			uint btn, dis;
			int val;

			// Don't allow clients to make any changes
			if  (_networking && !_network_server)
				return;

			x = e->click.pt.x - 5;
			if (!IS_INT_INSIDE(x, 0, 21)) // Button area
				return;

			y = e->click.pt.y - GAMEDIFF_WND_TOP_OFFSET;
			if (y < 0)
				return;

			// Get button from Y coord.
			btn = y / (GAMEDIFF_WND_ROWSIZE + 2);
			if (btn >= GAME_DIFFICULTY_NUM || y % (GAMEDIFF_WND_ROWSIZE + 2) >= 9)
				return;

			// Clicked disabled button?
			dis = (_game_mode == GM_NORMAL) ? DIFF_INGAME_DISABLED_BUTTONS : 0;

			if (HASBIT(dis, btn))
				return;

			_difficulty_timeout = 5;

			val = ((int*)&_opt_mod_temp.diff)[btn];

			info = &_game_setting_info[btn]; // get information about the difficulty setting
			if (x >= 10) {
				// Increase button clicked
				val = min(val + info->step, info->max);
				SETBIT(_difficulty_click_b, btn);
			} else {
				// Decrease button clicked
				val = max(val - info->step, info->min);
				SETBIT(_difficulty_click_a, btn);
			}

			// save value in temporary variable
			((int*)&_opt_mod_temp.diff)[btn] = val;
			SetDifficultyLevel(3, &_opt_mod_temp); // set difficulty level to custom
			SetWindowDirty(w);
		}	break;
		case 3: case 4: case 5: case 6: /* Easy / Medium / Hard / Custom */
			// temporarily change difficulty level
			SetDifficultyLevel(e->click.widget - 3, &_opt_mod_temp);
			SetWindowDirty(w);
			break;
		case 7: /* Highscore Table */
			ShowHighscoreTable(_opt_mod_temp.diff_level, -1);
			break;
		case 10: { /* Save button - save changes */
			int btn, val;
			for (btn = 0; btn != GAME_DIFFICULTY_NUM; btn++) {
				val = ((int*)&_opt_mod_temp.diff)[btn];
				// if setting has changed, change it
				if (val != ((int*)&_opt_ptr->diff)[btn])
					DoCommandP(0, btn, val, NULL, CMD_CHANGE_DIFFICULTY_LEVEL);
			}
			DoCommandP(0, -1, _opt_mod_temp.diff_level, NULL, CMD_CHANGE_DIFFICULTY_LEVEL);
			DeleteWindow(w);
			// If we are in the editor, we should reload the economy.
			//  This way when you load a game, the max loan and interest rate
			//  are loaded correctly.
			if (_game_mode == GM_EDITOR)
				StartupEconomy();
			break;
		}
		case 11: /* Cancel button - close window, abandon changes */
			DeleteWindow(w);
			break;
	} break;

	case WE_MOUSELOOP: /* Handle the visual 'clicking' of the buttons */
		if (_difficulty_timeout != 0 && !--_difficulty_timeout) {
			_difficulty_click_a = 0;
			_difficulty_click_b = 0;
			SetWindowDirty(w);
		}
		break;
	}
}

#undef DIFF_INGAME_DISABLED_BUTTONS

static const Widget _game_difficulty_widgets[] = {
{   WWT_CLOSEBOX,   RESIZE_NONE,    10,     0,    10,     0,    13, STR_00C5,									STR_018B_CLOSE_WINDOW},
{    WWT_CAPTION,   RESIZE_NONE,    10,    11,   369,     0,    13, STR_6800_DIFFICULTY_LEVEL,	STR_018C_WINDOW_TITLE_DRAG_THIS},
{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,    14,    29, 0x0,												STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,    10,    96,    16,    27, STR_6801_EASY,							STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,    97,   183,    16,    27, STR_6802_MEDIUM,						STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   184,   270,    16,    27, STR_6803_HARD,							STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   271,   357,    16,    27, STR_6804_CUSTOM,						STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,    10,     0,   369,    30,    41, STR_6838_SHOW_HI_SCORE_CHART,STR_NULL},
{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,    42,   262, 0x0,												STR_NULL},
{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,   263,   278, 0x0,												STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   105,   185,   265,   276, STR_OPTIONS_SAVE_CHANGES,	STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   186,   266,   265,   276, STR_012E_CANCEL,						STR_NULL},
{   WIDGETS_END},
};

static const WindowDesc _game_difficulty_desc = {
	WDP_CENTER, WDP_CENTER, 370, 279,
	WC_GAME_OPTIONS,0,
	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
	_game_difficulty_widgets,
	GameDifficultyWndProc
};

void ShowGameDifficulty(void)
{
	DeleteWindowById(WC_GAME_OPTIONS, 0);
	/* Copy current settings (ingame or in intro) to temporary holding place
	 * change that when setting stuff, copy back on clicking 'OK' */
	memcpy(&_opt_mod_temp, _opt_ptr, sizeof(GameOptions));
	AllocateWindowDesc(&_game_difficulty_desc);
}

// virtual PositionMainToolbar function, calls the right one.
static int32 v_PositionMainToolbar(int32 p1)
{
	if (_game_mode != GM_MENU)
		PositionMainToolbar(NULL);

	return 0;
}

static int32 AiNew_PatchActive_Warning(int32 p1)
{
  if (p1 == 1)
    ShowErrorMessage(-1, TEMP_AI_ACTIVATED, 0, 0);

  return 0;
}

static int32 PopulationInLabelActive(int32 p1)
{
	Town *t;

	FOR_ALL_TOWNS(t) {
		if (t->xy) {
			UpdateTownVirtCoord(t);
		}
	}

	return 0;
}

static int32 InvisibleTreesActive(int32 p1)
{
	MarkWholeScreenDirty();
	return 0;
}

static int32 InValidateDetailsWindow(int32 p1)
{
	InvalidateWindowClasses(WC_VEHICLE_DETAILS);
	return 0;
}

static int32 InvalidateStationBuildWindow(int32 p1)
{
	InvalidateWindow(WC_BUILD_STATION, 0);
	return 0;
}

/* Check service intervals of vehicles, p1 is value of % or day based servicing */
static int32 CheckInterval(int32 p1)
{
	bool warning;
	if (p1) {
		warning = ( (IS_INT_INSIDE(_patches.servint_trains,   5, 90+1) || _patches.servint_trains   == 0) &&
								(IS_INT_INSIDE(_patches.servint_roadveh,  5, 90+1) || _patches.servint_roadveh  == 0) &&
								(IS_INT_INSIDE(_patches.servint_aircraft, 5, 90+1) || _patches.servint_aircraft == 0) &&
								(IS_INT_INSIDE(_patches.servint_ships,    5, 90+1) || _patches.servint_ships    == 0) );
	} else {
		warning = ( (IS_INT_INSIDE(_patches.servint_trains,   30, 800+1) || _patches.servint_trains   == 0) &&
								(IS_INT_INSIDE(_patches.servint_roadveh,  30, 800+1) || _patches.servint_roadveh  == 0) &&
								(IS_INT_INSIDE(_patches.servint_aircraft, 30, 800+1) || _patches.servint_aircraft == 0) &&
								(IS_INT_INSIDE(_patches.servint_ships,    30, 800+1) || _patches.servint_ships    == 0) );
	}

	if (!warning)
		ShowErrorMessage(-1, STR_CONFIG_PATCHES_SERVICE_INTERVAL_INCOMPATIBLE, 0, 0);

	return InValidateDetailsWindow(0);
}

typedef int32 PatchButtonClick(int32);

typedef struct PatchEntry {
  byte type;                    // type of selector
  byte flags;                   // selector flags
  StringID str;                 // string with descriptive text
  char console_name[40];        // the name this patch has in console
  void *variable;               // pointer to the variable
  int32 min, max;               // range for spinbox setting
  uint32 step;                  // step for spinbox
  PatchButtonClick *click_proc; // callback procedure
} PatchEntry;

enum {
	PE_BOOL			= 0,
	PE_UINT8		= 1,
	PE_INT16		= 2,
	PE_UINT16		= 3,
	PE_INT32		= 4,
	PE_CURRENCY	= 5,
	// selector flags
	PF_0ISDIS				= 1 << 0,
	PF_NOCOMMA			= 1 << 1,
	PF_MULTISTRING	= 1 << 2,
	PF_PLAYERBASED	= 1 << 3, // This has to match the entries that are in settings.c, patch_player_settings
	PF_NETWORK_ONLY = 1 << 4, // this setting only applies to network games
};

static const PatchEntry _patches_ui[] = {
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_VEHICLESPEED,		"vehicle_speed",		&_patches.vehicle_speed,						0,  0,  0, NULL},
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_LONGDATE,				"long_date",				&_patches.status_long_date,					0,  0,  0, NULL},
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_SHOWFINANCES,		"show_finances",		&_patches.show_finances,						0,  0,  0, NULL},
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_AUTOSCROLL,			"autoscroll",				&_patches.autoscroll,								0,  0,  0, NULL},

	{PE_UINT8,	PF_PLAYERBASED, STR_CONFIG_PATCHES_ERRMSG_DURATION,	"errmsg_duration",	&_patches.errmsg_duration,					0, 20,  1, NULL},

	{PE_UINT8,	PF_MULTISTRING | PF_PLAYERBASED, STR_CONFIG_PATCHES_TOOLBAR_POS, "toolbar_pos", &_patches.toolbar_pos,			0,  2,  1, &v_PositionMainToolbar},
	{PE_UINT8,	PF_0ISDIS | PF_PLAYERBASED, STR_CONFIG_PATCHES_SNAP_RADIUS, "window_snap_radius", &_patches.window_snap_radius,     1, 32,  1, NULL},
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_INVISIBLE_TREES,	"invisible_trees", &_patches.invisible_trees,					0,  1,  1, &InvisibleTreesActive},
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_POPULATION_IN_LABEL, "population_in_label", &_patches.population_in_label, 0, 1, 1, &PopulationInLabelActive},

	{PE_INT32, 0, STR_CONFIG_PATCHES_MAP_X, "map_x", &_patches.map_x, 6, 11, 1, NULL},
	{PE_INT32, 0, STR_CONFIG_PATCHES_MAP_Y, "map_y", &_patches.map_y, 6, 11, 1, NULL},
};

static const PatchEntry _patches_construction[] = {
	{PE_BOOL,		0, STR_CONFIG_PATCHES_BUILDONSLOPES,		"build_on_slopes",	&_patches.build_on_slopes,					0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_EXTRADYNAMITE,		"extra_dynamite",		&_patches.extra_dynamite,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_LONGBRIDGES,			"long_bridges",			&_patches.longbridges,							0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_SIGNALSIDE,				"signal_side",			&_patches.signal_side,							0,  0,  0, NULL},

	{PE_BOOL,		0, STR_CONFIG_PATCHES_SMALL_AIRPORTS,		"always_small_airport", &_patches.always_small_airport,			0,  0,  0, NULL},
	{PE_UINT8,	PF_PLAYERBASED, STR_CONFIG_PATCHES_DRAG_SIGNALS_DENSITY, "drag_signals_density", &_patches.drag_signals_density, 1, 20,  1, NULL},
	{PE_BOOL,		0, STR_CONFIG_AUTO_PBS_PLACEMENT, "auto_pbs_placement", &_patches.auto_pbs_placement, 1, 20,  1, NULL},

};

static const PatchEntry _patches_vehicles[] = {
	{PE_BOOL,		0, STR_CONFIG_PATCHES_REALISTICACCEL,		"realistic_acceleration", &_patches.realistic_acceleration,		0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_FORBID_90_DEG,		"forbid_90_deg", 		&_patches.forbid_90_deg,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_MAMMOTHTRAINS,		"mammoth_trains", 	&_patches.mammoth_trains,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_GOTODEPOT,				"goto_depot", 			&_patches.gotodepot,								0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_ROADVEH_QUEUE,		"roadveh_queue", 		&_patches.roadveh_queue,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_NEW_DEPOT_FINDING,"depot_finding", 		&_patches.new_depot_finding,				0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_NEW_PATHFINDING_ALL, "new_pathfinding_all", &_patches.new_pathfinding_all,		0,  0,  0, NULL},

	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_WARN_INCOME_LESS, "train_income_warn", &_patches.train_income_warn,				0,  0,  0, NULL},
	{PE_UINT8,	PF_MULTISTRING | PF_PLAYERBASED, STR_CONFIG_PATCHES_ORDER_REVIEW, "order_review_system", &_patches.order_review_system,0,2,  1, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_NEVER_EXPIRE_VEHICLES, "never_expire_vehicles", &_patches.never_expire_vehicles,0,0,0, NULL},

	{PE_UINT16, PF_0ISDIS | PF_PLAYERBASED, STR_CONFIG_PATCHES_LOST_TRAIN_DAYS, "lost_train_days", &_patches.lost_train_days,	180,720, 60, NULL},
	{PE_BOOL,		PF_PLAYERBASED, STR_CONFIG_PATCHES_AUTORENEW_VEHICLE,"autorenew", &_patches.autorenew,								0,  0,  0, NULL},
	{PE_INT16,	PF_PLAYERBASED, STR_CONFIG_PATCHES_AUTORENEW_MONTHS, "autorenew_months", &_patches.autorenew_months,				-12, 12,  1, NULL},
	{PE_CURRENCY, PF_PLAYERBASED, STR_CONFIG_PATCHES_AUTORENEW_MONEY,"autorenew_money", &_patches.autorenew_money,					0, 2000000, 100000, NULL},

	{PE_UINT16,	0, STR_CONFIG_PATCHES_MAX_TRAINS,				"max_trains", &_patches.max_trains,								0,5000, 50, NULL},
	{PE_UINT16,	0, STR_CONFIG_PATCHES_MAX_ROADVEH,			"max_roadveh", &_patches.max_roadveh,							0,5000, 50, NULL},
	{PE_UINT16,	0, STR_CONFIG_PATCHES_MAX_AIRCRAFT,			"max_aircraft", &_patches.max_aircraft,						0,5000, 50, NULL},
	{PE_UINT16,	0, STR_CONFIG_PATCHES_MAX_SHIPS,				"max_ships", &_patches.max_ships,									0,5000, 50, NULL},

	{PE_BOOL,		0, STR_CONFIG_PATCHES_SERVINT_ISPERCENT,"servint_isperfect",&_patches.servint_ispercent,				0,  0,  0, &CheckInterval},
	{PE_UINT16, PF_0ISDIS, STR_CONFIG_PATCHES_SERVINT_TRAINS,		"servint_trains",   &_patches.servint_trains,		5,800,  5, &InValidateDetailsWindow},
	{PE_UINT16, PF_0ISDIS, STR_CONFIG_PATCHES_SERVINT_ROADVEH,	"servint_roadveh",  &_patches.servint_roadveh,	5,800,  5, &InValidateDetailsWindow},
	{PE_UINT16, PF_0ISDIS, STR_CONFIG_PATCHES_SERVINT_AIRCRAFT, "servint_aircraft", &_patches.servint_aircraft, 5,800,  5, &InValidateDetailsWindow},
	{PE_UINT16, PF_0ISDIS, STR_CONFIG_PATCHES_SERVINT_SHIPS,		"servint_ships",    &_patches.servint_ships,		5,800,  5, &InValidateDetailsWindow},
	{PE_BOOL,   0,         STR_CONFIG_PATCHES_NOSERVICE,        "no_servicing_if_no_breakdowns", &_patches.no_servicing_if_no_breakdowns, 0, 0, 0, NULL},
};

static const PatchEntry _patches_stations[] = {
	{PE_BOOL,		0, STR_CONFIG_PATCHES_JOINSTATIONS,			"join_stations", &_patches.join_stations,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_FULLLOADANY,			"full_load_any", &_patches.full_load_any,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_IMPROVEDLOAD,			"improved_load", &_patches.improved_load,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_SELECTGOODS,			"select_goods",  &_patches.selectgoods,							0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_NEW_NONSTOP,			"new_nonstop", &_patches.new_nonstop,							0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_NONUNIFORM_STATIONS, "nonuniform_stations", &_patches.nonuniform_stations,		0,  0,  0, NULL},
	{PE_UINT8,	0, STR_CONFIG_PATCHES_STATION_SPREAD,		"station_spread", &_patches.station_spread,						4, 64,  1, &InvalidateStationBuildWindow},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_SERVICEATHELIPAD, "service_at_helipad", &_patches.serviceathelipad,					0,  0,  0, NULL},
	{PE_BOOL, 0, STR_CONFIG_PATCHES_CATCHMENT, "modified_catchment", &_patches.modified_catchment, 0, 0, 0, NULL},

};

static const PatchEntry _patches_economy[] = {
	{PE_BOOL,		0, STR_CONFIG_PATCHES_INFLATION,				"inflation", &_patches.inflation,								0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_BUILDXTRAIND,			"build_rawmaterial", &_patches.build_rawmaterial_ind,		0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_MULTIPINDTOWN,		"multiple_industry_per_town", &_patches.multiple_industry_per_town,0, 0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_SAMEINDCLOSE,			"same_industry_close", &_patches.same_industry_close,			0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_BRIBE,						"bribe", &_patches.bribe,										0,  0,  0, NULL},
	{PE_UINT8,	0, STR_CONFIG_PATCHES_SNOWLINE_HEIGHT,	"snow_line_height", &_patches.snow_line_height,					2, 13,  1, NULL},

	{PE_INT32,	PF_NOCOMMA, STR_CONFIG_PATCHES_COLORED_NEWS_DATE, "colored_new_data", &_patches.colored_news_date, 1900, 2200, 5, NULL},
	{PE_INT32,	PF_NOCOMMA, STR_CONFIG_PATCHES_STARTING_DATE, "starting_date", &_patches.starting_date,	 MAX_YEAR_BEGIN_REAL, MAX_YEAR_END_REAL, 1, NULL},
	{PE_INT32,	PF_NOCOMMA | PF_NETWORK_ONLY, STR_CONFIG_PATCHES_ENDING_DATE, "ending_date", &_patches.ending_date,	 MAX_YEAR_BEGIN_REAL, MAX_YEAR_END_REAL, 1, NULL},

	{PE_BOOL,		0, STR_CONFIG_PATCHES_SMOOTH_ECONOMY,		"smooth_economy", &_patches.smooth_economy,						0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_ALLOW_SHARES,			"allow_shares", &_patches.allow_shares,						0,  0,  0, NULL},
};

static const PatchEntry _patches_ai[] = {
	{PE_BOOL,		0, STR_CONFIG_PATCHES_AINEW_ACTIVE, "ainew_active", &_patches.ainew_active, 0, 1, 1, &AiNew_PatchActive_Warning},

	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_BUILDS_TRAINS, "ai_disable_veh_train", &_patches.ai_disable_veh_train,			0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_BUILDS_ROADVEH,"ai_disable_veh_roadveh",&_patches.ai_disable_veh_roadveh,		0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_BUILDS_AIRCRAFT,"ai_disable_veh_aircraft",&_patches.ai_disable_veh_aircraft,0,  0,  0, NULL},
	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_BUILDS_SHIPS,"ai_disable_veh_ship",&_patches.ai_disable_veh_ship,			0,  0,  0, NULL},
};

typedef struct PatchPage {
	const PatchEntry *entries;
	uint num;
} PatchPage;

static const PatchPage _patches_page[] = {
	{_patches_ui,						lengthof(_patches_ui) },
	{_patches_construction, lengthof(_patches_construction) },
	{_patches_vehicles,			lengthof(_patches_vehicles) },
	{_patches_stations,			lengthof(_patches_stations) },
	{_patches_economy,			lengthof(_patches_economy) },
	{_patches_ai,						lengthof(_patches_ai) },
};


static int32 ReadPE(const PatchEntry*pe)
{
	switch (pe->type) {
	case PE_BOOL:   return *(bool*)pe->variable;
	case PE_UINT8:  return *(uint8*)pe->variable;
	case PE_INT16:  return *(int16*)pe->variable;
	case PE_UINT16: return *(uint16*)pe->variable;
	case PE_INT32:  return *(int32*)pe->variable;
	case PE_CURRENCY:  return (*(int32*)pe->variable) * GetCurrentCurrencyRate();
	default: NOT_REACHED();
	}

	/* useless, but avoids compiler warning this way */
	return 0;
}

static void WritePE(const PatchEntry *pe, int32 val)
{
	if ((pe->flags & PF_0ISDIS) && val <= 0) {
		switch (pe->type) {
			case PE_BOOL: case PE_UINT8:
				*(bool*)pe->variable = 0;
				break;
			case PE_INT16: case PE_UINT16:
				*(int16*)pe->variable = 0;
				break;
			case PE_CURRENCY: case PE_INT32:
				*(int32*)pe->variable = 0;
				break;
		}
		return;
	}

	// "clamp" 'disabled' value to smallest type
	switch (pe->type) {
		case PE_BOOL:
			*(bool*)pe->variable = (bool)val;
			break;
		case PE_UINT8:
			*(uint8*)pe->variable = (uint8)clamp((uint8)val, (uint8)pe->min, (uint8)pe->max);
			break;
		case PE_INT16:
			*(int16*)pe->variable = (int16)clamp((int16)val, (int16)pe->min, (int16)pe->max);
			break;
		case PE_UINT16:
			*(uint16*)pe->variable = (uint16)clamp((uint16)val, (uint16)pe->min, (uint16)pe->max);
			break;
		case PE_CURRENCY: case PE_INT32:
			*(int32*)pe->variable = (int32)clamp((int32)val, (int32)pe->min, (int32)pe->max);
			break;
		default: NOT_REACHED();
	}
}

static void PatchesSelectionWndProc(Window *w, WindowEvent *e)
{
	uint i;
	switch (e->event) {
	case WE_PAINT: {
		int x,y;
		const PatchEntry *pe;
		const PatchPage *page;
		uint clk;
		int32 val;

		w->click_state = 1 << (WP(w,def_d).data_1 + 4);

		DrawWindowWidgets(w);

		x = 0;
		y = 46;
		clk = WP(w,def_d).data_2;
		page = &_patches_page[WP(w,def_d).data_1];
		for (i = 0, pe = page->entries; i != page->num; i++, pe++) {
			bool disabled = false;
			bool editable = true;

			if ((pe->flags & PF_NETWORK_ONLY) && !_networking)
				editable = false;

			// We do not allow changes of some items when we are a client in a networkgame
			if (!(pe->flags & PF_PLAYERBASED) && _networking && !_network_server)
				editable = false;
			if (pe->type == PE_BOOL) {
				if (editable)
					DrawFrameRect(x+5, y+1, x+15+9, y+9, (*(bool*)pe->variable) ? 6 : 4, (*(bool*)pe->variable) ? FR_LOWERED : 0);
				else
					DrawFrameRect(x+5, y+1, x+15+9, y+9, (*(bool*)pe->variable) ? 7 : 9, (*(bool*)pe->variable) ? FR_LOWERED : 0);
				SetDParam(0, *(bool*)pe->variable ? STR_CONFIG_PATCHES_ON : STR_CONFIG_PATCHES_OFF);
			} else {
				DrawFrameRect(x+5, y+1, x+5+9, y+9, 3, clk == i*2+1 ? FR_LOWERED : 0);
				DrawFrameRect(x+15, y+1, x+15+9, y+9, 3, clk == i*2+2 ? FR_LOWERED : 0);
				if (!editable) {
					int color = 0x8000 | _color_list[3].unk2;
					GfxFillRect(x+6, y+2, x+6+8, y+9, color);
					GfxFillRect(x+16, y+2, x+16+8, y+9, color);
				}
				DrawStringCentered(x+10, y+1, STR_6819, 0);
				DrawStringCentered(x+20, y+1, STR_681A, 0);

				val = ReadPE(pe);
				if (pe->type == PE_CURRENCY)
					val /= GetCurrentCurrencyRate();
				disabled = ((val == 0) && (pe->flags & PF_0ISDIS));
				if (disabled) {
					SetDParam(0, STR_CONFIG_PATCHES_DISABLED);
				} else {
					SetDParam(1, val);
					if (pe->type == PE_CURRENCY)
						SetDParam(0, STR_CONFIG_PATCHES_CURRENCY);
					else {
						if (pe->flags & PF_MULTISTRING)
							SetDParam(0, pe->str + val + 1);
						else
							SetDParam(0, pe->flags & PF_NOCOMMA ? STR_CONFIG_PATCHES_INT32 : STR_7024);
					}
				}
			}
			DrawString(30, y+1, (pe->str)+disabled, 0);
			y += 11;
		}
		break;
	}

	case WE_CLICK:
		switch(e->click.widget) {
		case 3: {
			int x,y;
			uint btn;
			const PatchPage *page;
			const PatchEntry *pe;

			y = e->click.pt.y - 46 - 1;
			if (y < 0) return;

			btn = y / 11;
			if (y % 11 > 9) return;

			page = &_patches_page[WP(w,def_d).data_1];
			if (btn >= page->num) return;
			pe = &page->entries[btn];

			x = e->click.pt.x - 5;
			if (x < 0) return;

			if (((pe->flags & PF_NETWORK_ONLY) && !_networking) || // return if action is only active in network
					(!(pe->flags & PF_PLAYERBASED) && _networking && !_network_server)) // return if only server can change it
				return;

			if (x < 21) { // clicked on the icon on the left side. Either scroller or bool on/off
				int32 val = ReadPE(pe), oval = val;

				switch(pe->type) {
				case PE_BOOL:
					val ^= 1;
					break;
				case PE_UINT8:
				case PE_INT16:
				case PE_UINT16:
				case PE_INT32:
				case PE_CURRENCY:
					// don't allow too fast scrolling
					if ((w->flags4 & WF_TIMEOUT_MASK) > 2 << WF_TIMEOUT_SHL) {
						_left_button_clicked = false;
						return;
					}

					if (x >= 10) {
						//increase
						if (pe->flags & PF_0ISDIS && val == 0)
							val = pe->min;
						else
							val += pe->step;
						if (val > pe->max) val = pe->max;
					} else {
						// decrease
						if (val <= pe->min && pe->flags & PF_0ISDIS) {
							val = 0;
						} else {
							val -= pe->step;
							if (val < pe->min) val = pe->min;
						}
					}

					if (val != oval) {
						WP(w,def_d).data_2 = btn * 2 + 1 + ((x>=10) ? 1 : 0);
						w->flags4 |= 5 << WF_TIMEOUT_SHL;
						_left_button_clicked = false;
					}
					break;
				}
				if (val != oval) {
					// To make patch-changes network-safe
					if (pe->type == PE_CURRENCY) {
						val /= GetCurrentCurrencyRate();
					}
					// If an item is playerbased, we do not send it over the network (if any)
					if (pe->flags & PF_PLAYERBASED) {
						WritePE(pe, val);
					} else {
						// Else we do
						DoCommandP(0, (byte)WP(w,def_d).data_1 + ((byte)btn << 8), val, NULL, CMD_CHANGE_PATCH_SETTING);
					}
					SetWindowDirty(w);

					if (pe->click_proc != NULL) // call callback function
						pe->click_proc(val);
				}
			} else {
				if (pe->type != PE_BOOL && !(pe->flags & PF_MULTISTRING)) { // do not open editbox
					WP(w,def_d).data_3 = btn;
					SetDParam(0, ReadPE(pe));
					ShowQueryString(STR_CONFIG_PATCHES_INT32, STR_CONFIG_PATCHES_QUERY_CAPT, 10, 100, WC_GAME_OPTIONS, 0);
				}
			}

			break;
		}
		case 4: case 5: case 6: case 7: case 8: case 9:
			WP(w,def_d).data_1 = e->click.widget - 4;
			DeleteWindowById(WC_QUERY_STRING, 0);
			SetWindowDirty(w);
			break;
		}
		break;

	case WE_TIMEOUT:
		WP(w,def_d).data_2 = 0;
		SetWindowDirty(w);
		break;

	case WE_ON_EDIT_TEXT: {
		if (*e->edittext.str) {
			const PatchPage *page = &_patches_page[WP(w,def_d).data_1];
			const PatchEntry *pe = &page->entries[WP(w,def_d).data_3];
			int32 val;
			val = atoi(e->edittext.str);
			if (pe->type == PE_CURRENCY) {
				val /= GetCurrentCurrencyRate();
			}
			// If an item is playerbased, we do not send it over the network (if any)
			if (pe->flags & PF_PLAYERBASED) {
				WritePE(pe, val);
			} else {
				// Else we do
				DoCommandP(0, (byte)WP(w,def_d).data_1 + ((byte)WP(w,def_d).data_3 << 8), val, NULL, CMD_CHANGE_PATCH_SETTING);
			}
			SetWindowDirty(w);

			if (pe->click_proc != NULL) // call callback function
				pe->click_proc(*(int32*)pe->variable);
		}
		break;
	}

	case WE_DESTROY:
		DeleteWindowById(WC_QUERY_STRING, 0);
		break;
	}
}

/** Network-safe changing of patch-settings.
 * @param p1 various bitstuffed elements
 * - p1 = (bit 0- 7) - the patches type (page) that is being changed (construction, network, ai) (p1 & 0xFF)
 * - p2 = (bit 8-15) - the actual patch (entry) being set inside the category ((p1>>8) & 0xFF)
 * @param p2 the new value for the patch
 * @todo check that the new value is a valid one. Awful lot of work, but since only
 * the server is allowed to do this, we trust it on this one :)
 */
int32 CmdChangePatchSetting(int x, int y, uint32 flags, uint32 p1, uint32 p2)
{
	byte pcat = p1 & 0xFF;
	byte pel = (p1 >> 8) & 0xFF;

	if (pcat >= lengthof(_patches_page)) return CMD_ERROR;
	if (pel >= _patches_page[pcat].num) return CMD_ERROR;

	if (flags & DC_EXEC) {
		const PatchEntry *pe = &_patches_page[pcat].entries[pel];
		WritePE(pe, (int32)p2);

		InvalidateWindow(WC_GAME_OPTIONS, 0);
	}

	return 0;
}

static const PatchEntry *IConsoleGetPatch(const char *name, uint *page, uint *entry)
{
	const PatchPage *pp;
	const PatchEntry *pe;

	for (*page = 0; *page < lengthof(_patches_page); (*page)++) {
		pp = &_patches_page[*page];
		for (*entry = 0; *entry < pp->num; (*entry)++) {
			pe = &pp->entries[*entry];
			if (strncmp(pe->console_name, name, sizeof(pe->console_name)) == 0)
				return pe;
		}
	}

	return NULL;
}

/* Those 2 functions need to be here, else we have to make some stuff non-static
    and besides, it is also better to keep stuff like this at the same place */
void IConsoleSetPatchSetting(char *name, const char *value)
{
	const PatchEntry *pe;
	uint page, entry;
	int val;

	pe = IConsoleGetPatch(name, &page, &entry);

	if (pe == NULL) {
		IConsolePrintF(_icolour_warn, "'%s' is an unknown patch setting.", name);
		return;
	}

	sscanf(value, "%d", &val);

	if (pe->type == PE_CURRENCY) // currency can be different on each client
		val /= GetCurrentCurrencyRate();

	// If an item is playerbased, we do not send it over the network (if any)
	if (pe->flags & PF_PLAYERBASED) {
		WritePE(pe, val);
	} else // Else we do
		DoCommandP(0, page + (entry << 8), val, NULL, CMD_CHANGE_PATCH_SETTING);

	{
		char tval[20];
		const char *tval2 = value;
		if (pe->type == PE_BOOL) {
			snprintf(tval, sizeof(tval), (val == 1) ? "on" : "off");
			tval2 = tval;
		}

		IConsolePrintF(_icolour_warn, "'%s' changed to:  %s", name, tval2);
	}
}

void IConsoleGetPatchSetting(const char *name)
{
	char value[20];
	uint page, entry;
	const PatchEntry *pe = IConsoleGetPatch(name, &page, &entry);

	/* We did not find the patch setting */
	if (pe == NULL) {
		IConsolePrintF(_icolour_warn, "'%s' is an unknown patch setting.", name);
		return;
	}

	if (pe->type == PE_BOOL) {
		snprintf(value, sizeof(value), (ReadPE(pe) == 1) ? "on" : "off");
	} else
		snprintf(value, sizeof(value), "%d", ReadPE(pe));

	IConsolePrintF(_icolour_warn, "Current value for '%s' is: '%s'", name, value);
}

static const Widget _patches_selection_widgets[] = {
{   WWT_CLOSEBOX,   RESIZE_NONE,    10,     0,    10,     0,    13, STR_00C5,												STR_018B_CLOSE_WINDOW},
{    WWT_CAPTION,   RESIZE_NONE,    10,    11,   369,     0,    13, STR_CONFIG_PATCHES_CAPTION,			STR_018C_WINDOW_TITLE_DRAG_THIS},
{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,    14,    41, 0x0,															STR_NULL},
{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,    42,   320, 0x0,															STR_NULL},

{   WWT_CLOSEBOX,   RESIZE_NONE,     3,    10,    96,    16,    27, STR_CONFIG_PATCHES_GUI,					STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,     3,    97,   183,    16,    27, STR_CONFIG_PATCHES_CONSTRUCTION,	STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,     3,   184,   270,    16,    27, STR_CONFIG_PATCHES_VEHICLES,			STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,     3,   271,   357,    16,    27, STR_CONFIG_PATCHES_STATIONS,			STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,     3,    10,    96,    28,    39, STR_CONFIG_PATCHES_ECONOMY,			STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,     3,    97,   183,    28,    39, STR_CONFIG_PATCHES_AI,						STR_NULL},
{   WIDGETS_END},
};

static const WindowDesc _patches_selection_desc = {
	WDP_CENTER, WDP_CENTER, 370, 321,
	WC_GAME_OPTIONS,0,
	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,
	_patches_selection_widgets,
	PatchesSelectionWndProc,
};

void ShowPatchesSelection(void)
{
	DeleteWindowById(WC_GAME_OPTIONS, 0);
	AllocateWindowDesc(&_patches_selection_desc);
}

enum {
	NEWGRF_WND_PROC_OFFSET_TOP_WIDGET = 14,
	NEWGRF_WND_PROC_ROWSIZE = 14
};

static void NewgrfWndProc(Window *w, WindowEvent *e)
{
	static GRFFile *_sel_grffile;
	switch (e->event) {
	case WE_PAINT: {
		int x, y = NEWGRF_WND_PROC_OFFSET_TOP_WIDGET;
		uint16 i = 0;
		GRFFile *c = _first_grffile;

		DrawWindowWidgets(w);

		if (_first_grffile == NULL) { // no grf sets installed
			DrawStringMultiCenter(140, 210, STR_NEWGRF_NO_FILES_INSTALLED, 250);
			break;
		}

		// draw list of all grf files
		while (c != NULL) {
			if (i >= w->vscroll.pos) { // draw files according to scrollbar position
				bool h = (_sel_grffile==c);
				// show highlighted item with a different background and highlighted text
				if(h) GfxFillRect(1, y + 1, 267, y + 12, 156);
				// XXX - will be grf name later
				DoDrawString(c->filename, 25, y + 2, h ? 0xC : 0x10);
				DrawSprite(SPRITE_PALETTE(SPR_SQUARE | 0x30b8000), 5, y + 2);
				y += NEWGRF_WND_PROC_ROWSIZE;
			}

			c = c->next;
			if (++i == w->vscroll.cap + w->vscroll.pos) break; // stop after displaying 12 items
		}

// 		DoDrawString(_sel_grffile->setname, 120, 200, 0x01); // draw grf name

		if (_sel_grffile == NULL) { // no grf file selected yet
			DrawStringMultiCenter(140, 210, STR_NEWGRF_TIP, 250);
		} else {
			// draw filename
			x = DrawString(5, 199, STR_NEWGRF_FILENAME, 0);
			DoDrawString(_sel_grffile->filename, x + 2, 199, 0x01);

			// draw grf id
			x = DrawString(5, 209, STR_NEWGRF_GRF_ID, 0);
			snprintf(_userstring, USERSTRING_LEN, "%08X", _sel_grffile->grfid);
			DrawString(x + 2, 209, STR_SPEC_USERSTRING, 0x01);
		}
	} break;

	case WE_CLICK:
		switch(e->click.widget) {
		case 3: { // select a grf file
			int y = (e->click.pt.y - NEWGRF_WND_PROC_OFFSET_TOP_WIDGET) / NEWGRF_WND_PROC_ROWSIZE;

			if (y >= w->vscroll.cap) { return;} // click out of bounds

			y += w->vscroll.pos;

			if (y >= _grffile_count) return;

			_sel_grffile = _first_grffile;
			// get selected grf-file
			while (y-- != 0) _sel_grffile = _sel_grffile->next;

			SetWindowDirty(w);
		} break;
		case 9: /* Cancel button */
			DeleteWindowById(WC_GAME_OPTIONS, 0);
			break;
		} break;

/* Parameter edit box not used yet
	case WE_TIMEOUT:
		WP(w,def_d).data_2 = 0;
		SetWindowDirty(w);
		break;

	case WE_ON_EDIT_TEXT: {
		if (*e->edittext.str) {
			SetWindowDirty(w);
		}
		break;
	}
*/
	case WE_DESTROY:
		_sel_grffile = NULL;
		DeleteWindowById(WC_QUERY_STRING, 0);
		break;
	}
}

static const Widget _newgrf_widgets[] = {
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,										STR_018B_CLOSE_WINDOW},
{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   279,     0,    13, STR_NEWGRF_SETTINGS_CAPTION,	STR_018C_WINDOW_TITLE_DRAG_THIS},
{      WWT_PANEL,   RESIZE_NONE,    14,     0,   279,   183,   276, 0x0,													STR_NULL},

{     WWT_MATRIX,   RESIZE_NONE,    14,     0,   267,    14,   182, 0xC01,/*small rows*/					STR_NEWGRF_TIP},
{  WWT_SCROLLBAR,   RESIZE_NONE,    14,   268,   279,    14,   182, 0x0,													STR_0190_SCROLL_BAR_SCROLLS_LIST},

{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   147,   158,   244,   255, STR_0188,	STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   159,   170,   244,   255, STR_0189,	STR_NULL},
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   175,   274,   244,   255, STR_NEWGRF_SET_PARAMETERS,		STR_NULL},

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,     5,   138,   261,   272, STR_NEWGRF_APPLY_CHANGES,		STR_NULL},
{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   142,   274,   261,   272, STR_012E_CANCEL,							STR_NULL},
{   WIDGETS_END},
};

static const WindowDesc _newgrf_desc = {
	WDP_CENTER, WDP_CENTER, 280, 277,
	WC_GAME_OPTIONS,0,
	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,
	_newgrf_widgets,
	NewgrfWndProc,
};

void ShowNewgrf(void)
{
	Window *w;
	DeleteWindowById(WC_GAME_OPTIONS, 0);
	w = AllocateWindowDesc(&_newgrf_desc);

	{ // little helper function to calculate _grffile_count
	  // should be REMOVED once _grffile_count is calculated at loading
		GRFFile *c = _first_grffile;

		_grffile_count = 0;
		while (c != NULL) {
			_grffile_count++;
			c = c->next;
		}
	}

	w->vscroll.cap = 12;
	w->vscroll.count = _grffile_count;
	w->vscroll.pos = 0;
	w->disabled_state = (1 << 5) | (1 << 6) | (1 << 7);
}

/* state: 0 = none clicked, 0x01 = first clicked, 0x02 = second clicked */
void DrawArrowButtons(int x, int y, int state)
{
	DrawFrameRect(x, y+1, x+9, y+9, 3, (state & 0x01) ? FR_LOWERED : 0);
	DrawFrameRect(x+10, y+1, x+19, y+9, 3, (state & 0x02) ? FR_LOWERED : 0);
	DrawStringCentered(x+5, y+1, STR_6819, 0);
	DrawStringCentered(x+15, y+1, STR_681A, 0);
}

char _str_separator[2];

static void CustCurrencyWndProc(Window *w, WindowEvent *e)
{
	switch (e->event) {
	case WE_PAINT: {
		int x=35, y=20, i=0;
		int clk = WP(w,def_d).data_1;
		DrawWindowWidgets(w);

		// exchange rate
		DrawArrowButtons(10, y, (clk >> (i*2)) & 0x03);
		SetDParam(0, 1);
		SetDParam(1, 1);
		DrawString(x, y + 1, STR_CURRENCY_EXCHANGE_RATE, 0);
		x = 35;
		y+=12;
		i++;

		// separator
		DrawFrameRect(10, y+1, 29, y+9, 0, ((clk >> (i*2)) & 0x03) ? FR_LOWERED : 0);
		x = DrawString(x, y + 1, STR_CURRENCY_SEPARATOR, 0);
		DoDrawString(_str_separator, x + 4, y + 1, 6);
		x = 35;
		y+=12;
		i++;

		// prefix
		DrawFrameRect(10, y+1, 29, y+9, 0, ((clk >> (i*2)) & 0x03) ? FR_LOWERED : 0);
		x = DrawString(x, y + 1, STR_CURRENCY_PREFIX, 0);
		DoDrawString(_currency_specs[23].prefix, x + 4, y + 1, 6);
		x = 35;
		y+=12;
		i++;

		// suffix
		DrawFrameRect(10, y+1, 29, y+9, 0, ((clk >> (i*2)) & 0x03) ? FR_LOWERED : 0);
		x = DrawString(x, y + 1, STR_CURRENCY_SUFFIX, 0);
		DoDrawString(_currency_specs[23].suffix, x + 4, y + 1, 6);
		x = 35;
		y+=12;
		i++;

		// switch to euro
		DrawArrowButtons(10, y, (clk >> (i*2)) & 0x03);
		SetDParam(0, _currency_specs[23].to_euro);
		DrawString(x, y + 1, (_currency_specs[23].to_euro)?STR_CURRENCY_SWITCH_TO_EURO:STR_CURRENCY_SWITCH_TO_EURO_NEVER, 0);
		x = 35;
		y+=12;
		i++;

		// Preview
		y+=12;
		SetDParam(0, 10000);
		DrawString(x, y + 1, STR_CURRENCY_PREVIEW, 0);
	} break;

	case WE_CLICK: {
		bool edittext = false;
		int line = (e->click.pt.y - 20)/12;
		int len = 0;
		int x = e->click.pt.x;
		StringID str = 0;

		switch ( line ) {
			case 0: // rate
				if ( IS_INT_INSIDE(x, 10, 30) ) { // clicked buttons
					if (x < 20) {
						_currency_specs[23].rate = max(1, _currency_specs[23].rate-1);
						WP(w,def_d).data_1 =  (1 << (line * 2 + 0));
					} else {
						_currency_specs[23].rate = min(5000, _currency_specs[23].rate+1);
						WP(w,def_d).data_1 =  (1 << (line * 2 + 1));
					}
				} else { // enter text
					SetDParam(0, _currency_specs[23].rate);
					str = STR_CONFIG_PATCHES_INT32;
					len = 4;
					edittext = true;
				}
			break;
			case 1: // separator
				if ( IS_INT_INSIDE(x, 10, 30) )  // clicked button
					WP(w,def_d).data_1 =  (1 << (line * 2 + 1));
				str = BindCString(_str_separator);
				len = 1;
				edittext = true;
			break;
			case 2: // prefix
				if ( IS_INT_INSIDE(x, 10, 30) )  // clicked button
					WP(w,def_d).data_1 =  (1 << (line * 2 + 1));
				str = BindCString(_currency_specs[23].prefix);
				len = 12;
				edittext = true;
			break;
			case 3: // suffix
				if ( IS_INT_INSIDE(x, 10, 30) )  // clicked button
					WP(w,def_d).data_1 =  (1 << (line * 2 + 1));
				str = BindCString(_currency_specs[23].suffix);
				len = 12;
				edittext = true;
			break;
			case 4: // to euro
				if ( IS_INT_INSIDE(x, 10, 30) ) { // clicked buttons
					if (x < 20) {
						if(_currency_specs[23].to_euro <= 2000) _currency_specs[23].to_euro = 0;
						else _currency_specs[23].to_euro--;
						WP(w,def_d).data_1 = (1 << (line * 2 + 0));
					} else {
						if(_currency_specs[23].to_euro == 0) _currency_specs[23].to_euro = 2000;
						else _currency_specs[23].to_euro++;
						_currency_specs[23].to_euro = min(MAX_YEAR_END_REAL, _currency_specs[23].to_euro);
						WP(w,def_d).data_1 = (1 << (line * 2 + 1));
					}
				} else { // enter text
					SetDParam(0, _currency_specs[23].to_euro);
					str = STR_CONFIG_PATCHES_INT32;
					len = 4;
					edittext = true;
				}
			break;
		}

		if (edittext) {
			WP(w,def_d).data_2 = line;
			ShowQueryString(
			str,
			STR_CURRENCY_CHANGE_PARAMETER,
			len + 1, // maximum number of characters OR
			250, // characters up to this width pixels, whichever is satisfied first
			w->window_class,
			w->window_number);
		}

		w->flags4 |= 5 << WF_TIMEOUT_SHL;
		SetWindowDirty(w);
	} break;

	case WE_ON_EDIT_TEXT: {
			int val;
			const char *b = e->edittext.str;
			switch (WP(w,def_d).data_2) {
				case 0: /* Exchange rate */
					val = atoi(b);
					val = clamp(val, 1, 5000);
					_currency_specs[23].rate = val;
				break;
				case 1: /* Thousands seperator */
					_currency_specs[23].separator = (b[0] == '\0') ? ' ' : b[0];
					ttd_strlcpy(_str_separator, b, 16);
				break;
				case 2: /* Currency prefix */
					ttd_strlcpy(_currency_specs[23].prefix, b, 16);
				break;
				case 3: /* Currency suffix */
					ttd_strlcpy(_currency_specs[23].suffix, b, 16);
				break;
				case 4: /* Year to switch to euro */
					val = atoi(b);
					val = clamp(val, 1999, MAX_YEAR_END_REAL);
					if (val == 1999) val = 0;
					_currency_specs[23].to_euro = val;
				break;
			}
		MarkWholeScreenDirty();


	} break;

	case WE_TIMEOUT:
		WP(w,def_d).data_1 = 0;
		SetWindowDirty(w);
		break;

	case WE_DESTROY:
		DeleteWindowById(WC_QUERY_STRING, 0);
		MarkWholeScreenDirty();
		break;
	}
}

static const Widget _cust_currency_widgets[] = {
{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,						STR_018B_CLOSE_WINDOW},
{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   229,     0,    13, STR_CURRENCY_WINDOW,	STR_018C_WINDOW_TITLE_DRAG_THIS},
{      WWT_PANEL,   RESIZE_NONE,    14,     0,   229,    14,   119, 0x0,									STR_NULL},
{   WIDGETS_END},
};

static const WindowDesc _cust_currency_desc = {
	WDP_CENTER, WDP_CENTER, 230, 120,
	WC_CUSTOM_CURRENCY, 0,
	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,
	_cust_currency_widgets,
	CustCurrencyWndProc,
};

void ShowCustCurrency(void)
{
	Window *w;

	_str_separator[0] = _currency_specs[23].separator;
	_str_separator[1] = '\0';

	DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
	w = AllocateWindowDesc(&_cust_currency_desc);
}