summaryrefslogtreecommitdiff
path: root/src/group_gui.cpp
blob: 7db04e9b35badec3a203b28820602547dc2ec89f (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
/* $Id$ */

/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file group_gui.cpp GUI for the group window. */

#include "stdafx.h"
#include "textbuf_gui.h"
#include "command_func.h"
#include "vehicle_gui.h"
#include "vehicle_base.h"
#include "string_func.h"
#include "strings_func.h"
#include "window_func.h"
#include "vehicle_func.h"
#include "autoreplace_gui.h"
#include "company_func.h"
#include "widgets/dropdown_func.h"
#include "tilehighlight_func.h"
#include "vehicle_gui_base.h"
#include "core/geometry_func.hpp"
#include "company_base.h"

#include "widgets/group_widget.h"

#include "table/sprites.h"

#include "safeguards.h"

static const int LEVEL_WIDTH = 10; ///< Indenting width of a sub-group in pixels

typedef GUIList<const Group*> GUIGroupList;

static const NWidgetPart _nested_group_widgets[] = {
	NWidget(NWID_HORIZONTAL), // Window header
		NWidget(WWT_CLOSEBOX, COLOUR_GREY),
		NWidget(WWT_CAPTION, COLOUR_GREY, WID_GL_CAPTION),
		NWidget(WWT_SHADEBOX, COLOUR_GREY),
		NWidget(WWT_DEFSIZEBOX, COLOUR_GREY),
		NWidget(WWT_STICKYBOX, COLOUR_GREY),
	EndContainer(),
	NWidget(NWID_HORIZONTAL),
		/* left part */
		NWidget(NWID_VERTICAL),
			NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalTextLines(1, WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM), SetFill(1, 0), EndContainer(),
			NWidget(WWT_PANEL, COLOUR_GREY, WID_GL_ALL_VEHICLES), SetFill(1, 0), EndContainer(),
			NWidget(WWT_PANEL, COLOUR_GREY, WID_GL_DEFAULT_VEHICLES), SetFill(1, 0), EndContainer(),
			NWidget(NWID_HORIZONTAL),
				NWidget(WWT_MATRIX, COLOUR_GREY, WID_GL_LIST_GROUP), SetMatrixDataTip(1, 0, STR_GROUPS_CLICK_ON_GROUP_FOR_TOOLTIP),
						SetFill(1, 0), SetResize(0, 1), SetScrollbar(WID_GL_LIST_GROUP_SCROLLBAR),
				NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_GL_LIST_GROUP_SCROLLBAR),
			EndContainer(),
			NWidget(WWT_PANEL, COLOUR_GREY, WID_GL_INFO), SetFill(1, 0), EndContainer(),
			NWidget(NWID_HORIZONTAL),
				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_CREATE_GROUP), SetFill(0, 1),
						SetDataTip(SPR_GROUP_CREATE_TRAIN, STR_GROUP_CREATE_TOOLTIP),
				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_DELETE_GROUP), SetFill(0, 1),
						SetDataTip(SPR_GROUP_DELETE_TRAIN, STR_GROUP_DELETE_TOOLTIP),
				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_RENAME_GROUP), SetFill(0, 1),
						SetDataTip(SPR_GROUP_RENAME_TRAIN, STR_GROUP_RENAME_TOOLTIP),
				NWidget(WWT_PANEL, COLOUR_GREY), SetFill(1, 1), EndContainer(),
				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_REPLACE_PROTECTION), SetFill(0, 1),
						SetDataTip(SPR_GROUP_REPLACE_OFF_TRAIN, STR_GROUP_REPLACE_PROTECTION_TOOLTIP),
			EndContainer(),
		EndContainer(),
		/* right part */
		NWidget(NWID_VERTICAL),
			NWidget(NWID_HORIZONTAL),
				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GL_SORT_BY_ORDER), SetMinimalSize(81, 12), SetDataTip(STR_BUTTON_SORT_BY, STR_TOOLTIP_SORT_ORDER),
				NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GL_SORT_BY_DROPDOWN), SetMinimalSize(167, 12), SetDataTip(0x0, STR_TOOLTIP_SORT_CRITERIA),
				NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(12, 12), SetResize(1, 0), EndContainer(),
			EndContainer(),
			NWidget(NWID_HORIZONTAL),
				NWidget(WWT_MATRIX, COLOUR_GREY, WID_GL_LIST_VEHICLE), SetMinimalSize(248, 0), SetMatrixDataTip(1, 0, STR_NULL), SetResize(1, 1), SetFill(1, 0), SetScrollbar(WID_GL_LIST_VEHICLE_SCROLLBAR),
				NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_GL_LIST_VEHICLE_SCROLLBAR),
			EndContainer(),
			NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(1, 0), SetFill(1, 1), SetResize(1, 0), EndContainer(),
			NWidget(NWID_HORIZONTAL),
				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GL_AVAILABLE_VEHICLES), SetMinimalSize(106, 12), SetFill(0, 1),
						SetDataTip(STR_BLACK_STRING, STR_VEHICLE_LIST_AVAILABLE_ENGINES_TOOLTIP),
				NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 1), SetResize(1, 0), EndContainer(),
				NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GL_MANAGE_VEHICLES_DROPDOWN), SetMinimalSize(118, 12), SetFill(0, 1),
						SetDataTip(STR_VEHICLE_LIST_MANAGE_LIST, STR_VEHICLE_LIST_MANAGE_LIST_TOOLTIP),
				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_STOP_ALL), SetMinimalSize(12, 12), SetFill(0, 1),
						SetDataTip(SPR_FLAG_VEH_STOPPED, STR_VEHICLE_LIST_MASS_STOP_LIST_TOOLTIP),
				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_START_ALL), SetMinimalSize(12, 12), SetFill(0, 1),
						SetDataTip(SPR_FLAG_VEH_RUNNING, STR_VEHICLE_LIST_MASS_START_LIST_TOOLTIP),
				NWidget(WWT_RESIZEBOX, COLOUR_GREY),
			EndContainer(),
		EndContainer(),
	EndContainer(),
};

class VehicleGroupWindow : public BaseVehicleListWindow {
private:
	/* Columns in the group list */
	enum ListColumns {
		VGC_NAME,          ///< Group name.
		VGC_PROTECT,       ///< Autoreplace protect icon.
		VGC_AUTOREPLACE,   ///< Autoreplace active icon.
		VGC_PROFIT,        ///< Profit icon.
		VGC_NUMBER,        ///< Number of vehicles in the group.

		VGC_END
	};

	VehicleID vehicle_sel; ///< Selected vehicle
	GroupID group_sel;     ///< Selected group (for drag/drop)
	GroupID group_rename;  ///< Group being renamed, INVALID_GROUP if none
	GroupID group_over;    ///< Group over which a vehicle is dragged, INVALID_GROUP if none
	GroupID group_confirm; ///< Group awaiting delete confirmation
	GUIGroupList groups;   ///< List of groups
	uint tiny_step_height; ///< Step height for the group list
	Scrollbar *group_sb;

	SmallVector<int, 16> indents; ///< Indentation levels

	Dimension column_size[VGC_END]; ///< Size of the columns in the group list.

	void AddParents(GUIGroupList *source, GroupID parent, int indent)
	{
		for (const Group **g = source->Begin(); g != source->End(); g++) {
			if ((*g)->parent == parent) {
				*this->groups.Append() = *g;
				*this->indents.Append() = indent;
				AddParents(source, (*g)->index, indent + 1);
			}
		}
	}

	/** Sort the groups by their name */
	static int CDECL GroupNameSorter(const Group * const *a, const Group * const *b)
	{
		static const Group *last_group[2] = { NULL, NULL };
		static char         last_name[2][64] = { "", "" };

		if (*a != last_group[0]) {
			last_group[0] = *a;
			SetDParam(0, (*a)->index);
			GetString(last_name[0], STR_GROUP_NAME, lastof(last_name[0]));
		}

		if (*b != last_group[1]) {
			last_group[1] = *b;
			SetDParam(0, (*b)->index);
			GetString(last_name[1], STR_GROUP_NAME, lastof(last_name[1]));
		}

		int r = strnatcmp(last_name[0], last_name[1]); // Sort by name (natural sorting).
		if (r == 0) return (*a)->index - (*b)->index;
		return r;
	}

	/**
	 * (Re)Build the group list.
	 *
	 * @param owner The owner of the window
	 */
	void BuildGroupList(Owner owner)
	{
		if (!this->groups.NeedRebuild()) return;

		this->groups.Clear();
		this->indents.Clear();

		GUIGroupList list;

		const Group *g;
		FOR_ALL_GROUPS(g) {
			if (g->owner == owner && g->vehicle_type == this->vli.vtype) {
				*list.Append() = g;
			}
		}

		list.ForceResort();
		list.Sort(&GroupNameSorter);

		AddParents(&list, INVALID_GROUP, 0);

		this->groups.Compact();
		this->groups.RebuildDone();
	}

	/**
	 * Compute tiny_step_height and column_size
	 * @return Total width required for the group list.
	 */
	uint ComputeGroupInfoSize()
	{
		this->column_size[VGC_NAME] = maxdim(GetStringBoundingBox(STR_GROUP_DEFAULT_TRAINS + this->vli.vtype), GetStringBoundingBox(STR_GROUP_ALL_TRAINS + this->vli.vtype));
		this->column_size[VGC_NAME].width = max(170u, this->column_size[VGC_NAME].width);
		this->tiny_step_height = this->column_size[VGC_NAME].height;

		this->column_size[VGC_PROTECT] = GetSpriteSize(SPR_GROUP_REPLACE_PROTECT);
		this->tiny_step_height = max(this->tiny_step_height, this->column_size[VGC_PROTECT].height);

		this->column_size[VGC_AUTOREPLACE] = GetSpriteSize(SPR_GROUP_REPLACE_ACTIVE);
		this->tiny_step_height = max(this->tiny_step_height, this->column_size[VGC_AUTOREPLACE].height);

		this->column_size[VGC_PROFIT].width = 0;
		this->column_size[VGC_PROFIT].height = 0;
		static const SpriteID profit_sprites[] = {SPR_PROFIT_NA, SPR_PROFIT_NEGATIVE, SPR_PROFIT_SOME, SPR_PROFIT_LOT};
		for (uint i = 0; i < lengthof(profit_sprites); i++) {
			Dimension d = GetSpriteSize(profit_sprites[i]);
			this->column_size[VGC_PROFIT] = maxdim(this->column_size[VGC_PROFIT], d);
		}
		this->tiny_step_height = max(this->tiny_step_height, this->column_size[VGC_PROFIT].height);

		SetDParamMaxValue(0, GroupStatistics::Get(this->vli.company, ALL_GROUP, this->vli.vtype).num_vehicle, 3, FS_SMALL);
		this->column_size[VGC_NUMBER] = GetStringBoundingBox(STR_TINY_COMMA);
		this->tiny_step_height = max(this->tiny_step_height, this->column_size[VGC_NUMBER].height);

		this->tiny_step_height += WD_MATRIX_TOP;

		return WD_FRAMERECT_LEFT + 8 +
			this->column_size[VGC_NAME].width + 8 +
			this->column_size[VGC_PROTECT].width + 2 +
			this->column_size[VGC_AUTOREPLACE].width + 2 +
			this->column_size[VGC_PROFIT].width + 2 +
			this->column_size[VGC_NUMBER].width + 2 +
			WD_FRAMERECT_RIGHT;
	}

	/**
	 * Draw a row in the group list.
	 * @param y Top of the row.
	 * @param left Left of the row.
	 * @param right Right of the row.
	 * @param g_id Group to list.
	 * @param indent Indentation level.
	 * @param protection Whether autoreplace protection is set.
	 */
	void DrawGroupInfo(int y, int left, int right, GroupID g_id, int indent = 0, bool protection = false) const
	{
		/* Highlight the group if a vehicle is dragged over it */
		if (g_id == this->group_over) {
			GfxFillRect(left + WD_FRAMERECT_LEFT, y + WD_FRAMERECT_TOP, right - WD_FRAMERECT_RIGHT, y + this->tiny_step_height - WD_FRAMERECT_BOTTOM - WD_MATRIX_TOP, _colour_gradient[COLOUR_GREY][7]);
		}

		if (g_id == NEW_GROUP) return;

		/* draw the selected group in white, else we draw it in black */
		TextColour colour = g_id == this->vli.index ? TC_WHITE : TC_BLACK;
		const GroupStatistics &stats = GroupStatistics::Get(this->vli.company, g_id, this->vli.vtype);
		bool rtl = _current_text_dir == TD_RTL;

		/* draw group name */
		StringID str;
		if (IsAllGroupID(g_id)) {
			str = STR_GROUP_ALL_TRAINS + this->vli.vtype;
		} else if (IsDefaultGroupID(g_id)) {
			str = STR_GROUP_DEFAULT_TRAINS + this->vli.vtype;
		} else {
			SetDParam(0, g_id);
			str = STR_GROUP_NAME;
		}
		int x = rtl ? right - WD_FRAMERECT_RIGHT - 8 - this->column_size[VGC_NAME].width + 1 : left + WD_FRAMERECT_LEFT + 8;
		DrawString(x + indent * LEVEL_WIDTH, x + this->column_size[VGC_NAME].width - 1, y + (this->tiny_step_height - this->column_size[VGC_NAME].height) / 2, str, colour);

		/* draw autoreplace protection */
		x = rtl ? x - 8 - this->column_size[VGC_PROTECT].width : x + 8 + this->column_size[VGC_NAME].width;
		if (protection) DrawSprite(SPR_GROUP_REPLACE_PROTECT, PAL_NONE, x, y + (this->tiny_step_height - this->column_size[VGC_PROTECT].height) / 2);

		/* draw autoreplace status */
		x = rtl ? x - 2 - this->column_size[VGC_AUTOREPLACE].width : x + 2 + this->column_size[VGC_PROTECT].width;
		if (stats.autoreplace_defined) DrawSprite(SPR_GROUP_REPLACE_ACTIVE, stats.autoreplace_finished ? PALETTE_CRASH : PAL_NONE, x, y + (this->tiny_step_height - this->column_size[VGC_AUTOREPLACE].height) / 2);

		/* draw the profit icon */
		x = rtl ? x - 2 - this->column_size[VGC_PROFIT].width : x + 2 + this->column_size[VGC_AUTOREPLACE].width;
		SpriteID spr;
		if (stats.num_profit_vehicle == 0) {
			spr = SPR_PROFIT_NA;
		} else if (stats.profit_last_year < 0) {
			spr = SPR_PROFIT_NEGATIVE;
		} else if (stats.profit_last_year < 10000 * stats.num_profit_vehicle) { // TODO magic number
			spr = SPR_PROFIT_SOME;
		} else {
			spr = SPR_PROFIT_LOT;
		}
		DrawSprite(spr, PAL_NONE, x, y + (this->tiny_step_height - this->column_size[VGC_PROFIT].height) / 2);

		/* draw the number of vehicles of the group */
		x = rtl ? x - 2 - this->column_size[VGC_NUMBER].width : x + 2 + this->column_size[VGC_PROFIT].width;
		SetDParam(0, stats.num_vehicle);
		DrawString(x, x + this->column_size[VGC_NUMBER].width - 1, y + (this->tiny_step_height - this->column_size[VGC_NUMBER].height) / 2, STR_TINY_COMMA, colour, SA_RIGHT | SA_FORCE);
	}

	/**
	 * Mark the widget containing the currently highlighted group as dirty.
	 */
	void DirtyHighlightedGroupWidget()
	{
		if (this->group_over == INVALID_GROUP) return;

		if (IsAllGroupID(this->group_over)) {
			this->SetWidgetDirty(WID_GL_ALL_VEHICLES);
		} else if (IsDefaultGroupID(this->group_over)) {
			this->SetWidgetDirty(WID_GL_DEFAULT_VEHICLES);
		} else {
			this->SetWidgetDirty(WID_GL_LIST_GROUP);
		}
	}

public:
	VehicleGroupWindow(WindowDesc *desc, WindowNumber window_number) : BaseVehicleListWindow(desc, window_number)
	{
		this->CreateNestedTree();

		this->vscroll = this->GetScrollbar(WID_GL_LIST_VEHICLE_SCROLLBAR);
		this->group_sb = this->GetScrollbar(WID_GL_LIST_GROUP_SCROLLBAR);

		switch (this->vli.vtype) {
			default: NOT_REACHED();
			case VEH_TRAIN:    this->sorting = &_sorting.train;    break;
			case VEH_ROAD:     this->sorting = &_sorting.roadveh;  break;
			case VEH_SHIP:     this->sorting = &_sorting.ship;     break;
			case VEH_AIRCRAFT: this->sorting = &_sorting.aircraft; break;
		}

		this->vli.index = ALL_GROUP;
		this->vehicle_sel = INVALID_VEHICLE;
		this->group_sel = INVALID_GROUP;
		this->group_rename = INVALID_GROUP;
		this->group_over = INVALID_GROUP;

		this->vehicles.SetListing(*this->sorting);
		this->vehicles.ForceRebuild();
		this->vehicles.NeedResort();

		this->BuildVehicleList();
		this->SortVehicleList();

		this->groups.ForceRebuild();
		this->groups.NeedResort();
		this->BuildGroupList(vli.company);

		this->GetWidget<NWidgetCore>(WID_GL_CAPTION)->widget_data = STR_VEHICLE_LIST_TRAIN_CAPTION + this->vli.vtype;
		this->GetWidget<NWidgetCore>(WID_GL_LIST_VEHICLE)->tool_tip = STR_VEHICLE_LIST_TRAIN_LIST_TOOLTIP + this->vli.vtype;

		this->GetWidget<NWidgetCore>(WID_GL_CREATE_GROUP)->widget_data += this->vli.vtype;
		this->GetWidget<NWidgetCore>(WID_GL_RENAME_GROUP)->widget_data += this->vli.vtype;
		this->GetWidget<NWidgetCore>(WID_GL_DELETE_GROUP)->widget_data += this->vli.vtype;
		this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data += this->vli.vtype;

		this->FinishInitNested(window_number);
		this->owner = vli.company;
	}

	~VehicleGroupWindow()
	{
		*this->sorting = this->vehicles.GetListing();
	}

	virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
	{
		switch (widget) {
			case WID_GL_LIST_GROUP: {
				size->width = this->ComputeGroupInfoSize();
				resize->height = this->tiny_step_height;

				/* Minimum height is the height of the list widget minus all and default vehicles... */
				size->height =  4 * GetVehicleListHeight(this->vli.vtype, this->tiny_step_height) - 2 * this->tiny_step_height;

				/* ... minus the buttons at the bottom ... */
				uint max_icon_height = GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_CREATE_GROUP)->widget_data).height;
				max_icon_height = max(max_icon_height, GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_RENAME_GROUP)->widget_data).height);
				max_icon_height = max(max_icon_height, GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_DELETE_GROUP)->widget_data).height);
				max_icon_height = max(max_icon_height, GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data).height);

				/* ... minus the height of the group info ... */
				max_icon_height += (FONT_HEIGHT_NORMAL * 3) + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;

				/* Get a multiple of tiny_step_height of that amount */
				size->height = Ceil(size->height - max_icon_height, tiny_step_height);
				break;
			}

			case WID_GL_ALL_VEHICLES:
			case WID_GL_DEFAULT_VEHICLES:
				size->width = this->ComputeGroupInfoSize();
				size->height = this->tiny_step_height;
				break;

			case WID_GL_SORT_BY_ORDER: {
				Dimension d = GetStringBoundingBox(this->GetWidget<NWidgetCore>(widget)->widget_data);
				d.width += padding.width + Window::SortButtonWidth() * 2; // Doubled since the string is centred and it also looks better.
				d.height += padding.height;
				*size = maxdim(*size, d);
				break;
			}

			case WID_GL_LIST_VEHICLE:
				this->ComputeGroupInfoSize();
				resize->height = GetVehicleListHeight(this->vli.vtype, this->tiny_step_height);
				size->height = 4 * resize->height;
				break;

			case WID_GL_MANAGE_VEHICLES_DROPDOWN: {
				Dimension d = this->GetActionDropdownSize(true, true);
				d.height += padding.height;
				d.width  += padding.width;
				*size = maxdim(*size, d);
				break;
			}

			case WID_GL_INFO: {
				size->height = (FONT_HEIGHT_NORMAL * 3) + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
				break;
			}
		}
	}

	/**
	 * Some data on this window has become invalid.
	 * @param data Information about the changed data.
	 * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.
	 */
	virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
	{
		if (data == 0) {
			/* This needs to be done in command-scope to enforce rebuilding before resorting invalid data */
			this->vehicles.ForceRebuild();
			this->groups.ForceRebuild();
		} else {
			this->vehicles.ForceResort();
			this->groups.ForceResort();
		}

		/* Process ID-invalidation in command-scope as well */
		if (this->group_rename != INVALID_GROUP && !Group::IsValidID(this->group_rename)) {
			DeleteWindowByClass(WC_QUERY_STRING);
			this->group_rename = INVALID_GROUP;
		}

		if (!(IsAllGroupID(this->vli.index) || IsDefaultGroupID(this->vli.index) || Group::IsValidID(this->vli.index))) {
			this->vli.index = ALL_GROUP;
			HideDropDownMenu(this);
		}
		this->SetDirty();
	}

	virtual void SetStringParameters(int widget) const
	{
		switch (widget) {
			case WID_GL_AVAILABLE_VEHICLES:
				SetDParam(0, STR_VEHICLE_LIST_AVAILABLE_TRAINS + this->vli.vtype);
				break;

			case WID_GL_CAPTION:
				/* If selected_group == DEFAULT_GROUP || ALL_GROUP, draw the standard caption
				 * We list all vehicles or ungrouped vehicles */
				if (IsDefaultGroupID(this->vli.index) || IsAllGroupID(this->vli.index)) {
					SetDParam(0, STR_COMPANY_NAME);
					SetDParam(1, this->vli.company);
					SetDParam(2, this->vehicles.Length());
					SetDParam(3, this->vehicles.Length());
				} else {
					const Group *g = Group::Get(this->vli.index);

					SetDParam(0, STR_GROUP_NAME);
					SetDParam(1, g->index);
					SetDParam(2, g->statistics.num_vehicle);
					SetDParam(3, g->statistics.num_vehicle);
				}
				break;
		}
	}

	virtual void OnPaint()
	{
		/* If we select the all vehicles, this->list will contain all vehicles of the owner
		 * else this->list will contain all vehicles which belong to the selected group */
		this->BuildVehicleList();
		this->SortVehicleList();

		this->BuildGroupList(this->owner);

		this->group_sb->SetCount(this->groups.Length());
		this->vscroll->SetCount(this->vehicles.Length());

		/* The drop down menu is out, *but* it may not be used, retract it. */
		if (this->vehicles.Length() == 0 && this->IsWidgetLowered(WID_GL_MANAGE_VEHICLES_DROPDOWN)) {
			this->RaiseWidget(WID_GL_MANAGE_VEHICLES_DROPDOWN);
			HideDropDownMenu(this);
		}

		/* Disable all lists management button when the list is empty */
		this->SetWidgetsDisabledState(this->vehicles.Length() == 0 || _local_company != this->vli.company,
				WID_GL_STOP_ALL,
				WID_GL_START_ALL,
				WID_GL_MANAGE_VEHICLES_DROPDOWN,
				WIDGET_LIST_END);

		/* Disable the group specific function when we select the default group or all vehicles */
		this->SetWidgetsDisabledState(IsDefaultGroupID(this->vli.index) || IsAllGroupID(this->vli.index) || _local_company != this->vli.company,
				WID_GL_DELETE_GROUP,
				WID_GL_RENAME_GROUP,
				WID_GL_REPLACE_PROTECTION,
				WIDGET_LIST_END);

		/* Disable remaining buttons for non-local companies
		 * Needed while changing _local_company, eg. by cheats
		 * All procedures (eg. move vehicle to another group)
		 *  verify, whether you are the owner of the vehicle,
		 *  so it doesn't have to be disabled
		 */
		this->SetWidgetsDisabledState(_local_company != this->vli.company,
				WID_GL_CREATE_GROUP,
				WID_GL_AVAILABLE_VEHICLES,
				WIDGET_LIST_END);

		/* If not a default group and the group has replace protection, show an enabled replace sprite. */
		uint16 protect_sprite = SPR_GROUP_REPLACE_OFF_TRAIN;
		if (!IsDefaultGroupID(this->vli.index) && !IsAllGroupID(this->vli.index) && Group::Get(this->vli.index)->replace_protection) protect_sprite = SPR_GROUP_REPLACE_ON_TRAIN;
		this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data = protect_sprite + this->vli.vtype;

		/* Set text of sort by dropdown */
		this->GetWidget<NWidgetCore>(WID_GL_SORT_BY_DROPDOWN)->widget_data = this->vehicle_sorter_names[this->vehicles.SortType()];

		this->DrawWidgets();
	}

	virtual void DrawWidget(const Rect &r, int widget) const
	{
		switch (widget) {
			case WID_GL_ALL_VEHICLES:
				DrawGroupInfo(r.top + WD_FRAMERECT_TOP, r.left, r.right, ALL_GROUP);
				break;

			case WID_GL_DEFAULT_VEHICLES:
				DrawGroupInfo(r.top + WD_FRAMERECT_TOP, r.left, r.right, DEFAULT_GROUP);
				break;

			case WID_GL_INFO: {
				Money this_year = 0;
				Money last_year = 0;
				uint32 occupancy = 0;
				uint32 vehicle_count = this->vehicles.Length();

				for (uint i = 0; i < vehicle_count; i++) {
					const Vehicle *v = this->vehicles[i];
					assert(v->owner == this->owner);

					this_year += v->GetDisplayProfitThisYear();
					last_year += v->GetDisplayProfitLastYear();
					occupancy += v->trip_occupancy;
				}

				const int left  = r.left + WD_FRAMERECT_LEFT + 8;
				const int right = r.right - WD_FRAMERECT_RIGHT - 8;

				int y = r.top + WD_FRAMERECT_TOP;
				DrawString(left, right, y, STR_GROUP_PROFIT_THIS_YEAR, TC_BLACK);
				SetDParam(0, this_year);
				DrawString(left, right, y, STR_JUST_CURRENCY_LONG, TC_BLACK, SA_RIGHT);

				y += FONT_HEIGHT_NORMAL;
				DrawString(left, right, y, STR_GROUP_PROFIT_LAST_YEAR, TC_BLACK);
				SetDParam(0, last_year);
				DrawString(left, right, y, STR_JUST_CURRENCY_LONG, TC_BLACK, SA_RIGHT);

				y += FONT_HEIGHT_NORMAL;
				DrawString(left, right, y, STR_GROUP_OCCUPANCY, TC_BLACK);
				if (vehicle_count > 0) {
					SetDParam(0, occupancy / vehicle_count);
					DrawString(left, right, y, STR_GROUP_OCCUPANCY_VALUE, TC_BLACK, SA_RIGHT);
				}

				break;
			}

			case WID_GL_LIST_GROUP: {
				int y1 = r.top + WD_FRAMERECT_TOP;
				int max = min(this->group_sb->GetPosition() + this->group_sb->GetCapacity(), this->groups.Length());
				for (int i = this->group_sb->GetPosition(); i < max; ++i) {
					const Group *g = this->groups[i];

					assert(g->owner == this->owner);

					DrawGroupInfo(y1, r.left, r.right, g->index, this->indents[i], g->replace_protection);

					y1 += this->tiny_step_height;
				}
				if ((uint)this->group_sb->GetPosition() + this->group_sb->GetCapacity() > this->groups.Length()) {
					DrawGroupInfo(y1, r.left, r.right, NEW_GROUP);
				}
				break;
			}

			case WID_GL_SORT_BY_ORDER:
				this->DrawSortButtonState(WID_GL_SORT_BY_ORDER, this->vehicles.IsDescSortOrder() ? SBS_DOWN : SBS_UP);
				break;

			case WID_GL_LIST_VEHICLE:
				if (this->vli.index != ALL_GROUP) {
					/* Mark vehicles which are in sub-groups */
					int y = r.top;
					uint max = min(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->vehicles.Length());
					for (uint i = this->vscroll->GetPosition(); i < max; ++i) {
						const Vehicle *v = this->vehicles[i];
						if (v->group_id != this->vli.index) {
							GfxFillRect(r.left + 1, y + 1, r.right - 1, y + this->resize.step_height - 2, _colour_gradient[COLOUR_GREY][3], FILLRECT_CHECKER);
						}
						y += this->resize.step_height;
					}
				}

				this->DrawVehicleListItems(this->vehicle_sel, this->resize.step_height, r);
				break;
		}
	}

	static void DeleteGroupCallback(Window *win, bool confirmed)
	{
		if (confirmed) {
			VehicleGroupWindow *w = (VehicleGroupWindow*)win;
			w->vli.index = ALL_GROUP;
			DoCommandP(0, w->group_confirm, 0, CMD_DELETE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_DELETE));
		}
	}

	virtual void OnClick(Point pt, int widget, int click_count)
	{
		switch (widget) {
			case WID_GL_SORT_BY_ORDER: // Flip sorting method ascending/descending
				this->vehicles.ToggleSortOrder();
				this->SetDirty();
				break;

			case WID_GL_SORT_BY_DROPDOWN: // Select sorting criteria dropdown menu
				ShowDropDownMenu(this, this->vehicle_sorter_names, this->vehicles.SortType(),  WID_GL_SORT_BY_DROPDOWN, 0, (this->vli.vtype == VEH_TRAIN || this->vli.vtype == VEH_ROAD) ? 0 : (1 << 10));
				return;

			case WID_GL_ALL_VEHICLES: // All vehicles button
				if (!IsAllGroupID(this->vli.index)) {
					this->vli.index = ALL_GROUP;
					this->vehicles.ForceRebuild();
					this->SetDirty();
				}
				break;

			case WID_GL_DEFAULT_VEHICLES: // Ungrouped vehicles button
				if (!IsDefaultGroupID(this->vli.index)) {
					this->vli.index = DEFAULT_GROUP;
					this->vehicles.ForceRebuild();
					this->SetDirty();
				}
				break;

			case WID_GL_LIST_GROUP: { // Matrix Group
				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP, 0, this->tiny_step_height);
				if (id_g >= this->groups.Length()) return;

				this->group_sel = this->vli.index = this->groups[id_g]->index;

				SetObjectToPlaceWnd(SPR_CURSOR_MOUSE, PAL_NONE, HT_DRAG, this);

				this->vehicles.ForceRebuild();
				this->SetDirty();
				break;
			}

			case WID_GL_LIST_VEHICLE: { // Matrix Vehicle
				uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_VEHICLE);
				if (id_v >= this->vehicles.Length()) return; // click out of list bound

				const Vehicle *v = this->vehicles[id_v];
				if (VehicleClicked(v)) break;

				this->vehicle_sel = v->index;

				SetObjectToPlaceWnd(SPR_CURSOR_MOUSE, PAL_NONE, HT_DRAG, this);
				SetMouseCursorVehicle(v, EIT_IN_LIST);
				_cursor.vehchain = true;

				this->SetDirty();
				break;
			}

			case WID_GL_CREATE_GROUP: { // Create a new group
				DoCommandP(0, this->vli.vtype, 0, CMD_CREATE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_CREATE), CcCreateGroup);
				break;
			}

			case WID_GL_DELETE_GROUP: { // Delete the selected group
				this->group_confirm = this->vli.index;
				ShowQuery(STR_QUERY_GROUP_DELETE_CAPTION, STR_GROUP_DELETE_QUERY_TEXT, this, DeleteGroupCallback);
				break;
			}

			case WID_GL_RENAME_GROUP: // Rename the selected roup
				this->ShowRenameGroupWindow(this->vli.index, false);
				break;

			case WID_GL_AVAILABLE_VEHICLES:
				ShowBuildVehicleWindow(INVALID_TILE, this->vli.vtype);
				break;

			case WID_GL_MANAGE_VEHICLES_DROPDOWN: {
				DropDownList *list = this->BuildActionDropdownList(true, Group::IsValidID(this->vli.index));
				ShowDropDownList(this, list, 0, WID_GL_MANAGE_VEHICLES_DROPDOWN);
				break;
			}

			case WID_GL_START_ALL:
			case WID_GL_STOP_ALL: { // Start/stop all vehicles of the list
				DoCommandP(0, (1 << 1) | (widget == WID_GL_START_ALL ? (1 << 0) : 0), this->vli.Pack(), CMD_MASS_START_STOP);
				break;
			}

			case WID_GL_REPLACE_PROTECTION: {
				const Group *g = Group::GetIfValid(this->vli.index);
				if (g != NULL) {
					DoCommandP(0, this->vli.index, (g->replace_protection ? 0 : 1) | (_ctrl_pressed << 1), CMD_SET_GROUP_REPLACE_PROTECTION);
				}
				break;
			}
		}
	}

	void OnDragDrop_Group(Point pt, int widget)
	{
		const Group *g = Group::Get(this->group_sel);

		switch (widget) {
			case WID_GL_ALL_VEHICLES: // All vehicles
			case WID_GL_DEFAULT_VEHICLES: // Ungroupd vehicles
				if (g->parent != INVALID_GROUP) {
					DoCommandP(0, this->group_sel | (1 << 16), INVALID_GROUP, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_SET_PARENT));
				}

				this->group_sel = INVALID_GROUP;
				this->group_over = INVALID_GROUP;
				this->SetDirty();
				break;

			case WID_GL_LIST_GROUP: { // Matrix group
				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP, 0, this->tiny_step_height);
				GroupID new_g = id_g >= this->groups.Length() ? INVALID_GROUP : this->groups[id_g]->index;

				if (this->group_sel != new_g && g->parent != new_g) {
					DoCommandP(0, this->group_sel | (1 << 16), new_g, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_SET_PARENT));
				}

				this->group_sel = INVALID_GROUP;
				this->group_over = INVALID_GROUP;
				this->SetDirty();
				break;
			}
		}
	}

	void OnDragDrop_Vehicle(Point pt, int widget)
	{
		switch (widget) {
			case WID_GL_DEFAULT_VEHICLES: // Ungrouped vehicles
				DoCommandP(0, DEFAULT_GROUP, this->vehicle_sel | (_ctrl_pressed ? 1 << 31 : 0), CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE));

				this->vehicle_sel = INVALID_VEHICLE;
				this->group_over = INVALID_GROUP;

				this->SetDirty();
				break;

			case WID_GL_LIST_GROUP: { // Matrix group
				const VehicleID vindex = this->vehicle_sel;
				this->vehicle_sel = INVALID_VEHICLE;
				this->group_over = INVALID_GROUP;
				this->SetDirty();

				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP, 0, this->tiny_step_height);
				GroupID new_g = id_g >= this->groups.Length() ? NEW_GROUP : this->groups[id_g]->index;

				DoCommandP(0, new_g, vindex | (_ctrl_pressed ? 1 << 31 : 0), CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE), new_g == NEW_GROUP ? CcAddVehicleNewGroup : NULL);
				break;
			}

			case WID_GL_LIST_VEHICLE: { // Matrix vehicle
				const VehicleID vindex = this->vehicle_sel;
				this->vehicle_sel = INVALID_VEHICLE;
				this->group_over = INVALID_GROUP;
				this->SetDirty();

				uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_VEHICLE);
				if (id_v >= this->vehicles.Length()) return; // click out of list bound

				const Vehicle *v = this->vehicles[id_v];
				if (!VehicleClicked(v) && vindex == v->index) {
					ShowVehicleViewWindow(v);
				}
				break;
			}
		}
	}

	virtual void OnDragDrop(Point pt, int widget)
	{
		if (this->vehicle_sel != INVALID_VEHICLE) OnDragDrop_Vehicle(pt, widget);
		if (this->group_sel != INVALID_GROUP) OnDragDrop_Group(pt, widget);

		_cursor.vehchain = false;
	}

	virtual void OnQueryTextFinished(char *str)
	{
		if (str != NULL) DoCommandP(0, this->group_rename, 0, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_RENAME), NULL, str);
		this->group_rename = INVALID_GROUP;
	}

	virtual void OnResize()
	{
		this->group_sb->SetCapacityFromWidget(this, WID_GL_LIST_GROUP);
		this->vscroll->SetCapacityFromWidget(this, WID_GL_LIST_VEHICLE);
	}

	virtual void OnDropdownSelect(int widget, int index)
	{
		switch (widget) {
			case WID_GL_SORT_BY_DROPDOWN:
				this->vehicles.SetSortType(index);
				break;

			case WID_GL_MANAGE_VEHICLES_DROPDOWN:
				assert(this->vehicles.Length() != 0);

				switch (index) {
					case ADI_REPLACE: // Replace window
						ShowReplaceGroupVehicleWindow(this->vli.index, this->vli.vtype);
						break;
					case ADI_SERVICE: // Send for servicing
					case ADI_DEPOT: { // Send to Depots
						DoCommandP(0, DEPOT_MASS_SEND | (index == ADI_SERVICE ? DEPOT_SERVICE : 0U), this->vli.Pack(), GetCmdSendToDepot(this->vli.vtype));
						break;
					}

					case ADI_ADD_SHARED: // Add shared Vehicles
						assert(Group::IsValidID(this->vli.index));

						DoCommandP(0, this->vli.index, this->vli.vtype, CMD_ADD_SHARED_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_SHARED_VEHICLE));
						break;
					case ADI_REMOVE_ALL: // Remove all Vehicles from the selected group
						assert(Group::IsValidID(this->vli.index));

						DoCommandP(0, this->vli.index, 0, CMD_REMOVE_ALL_VEHICLES_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_REMOVE_ALL_VEHICLES));
						break;
					default: NOT_REACHED();
				}
				break;

			default: NOT_REACHED();
		}

		this->SetDirty();
	}

	virtual void OnGameTick()
	{
		if (this->groups.NeedResort() || this->vehicles.NeedResort()) {
			this->SetDirty();
		}
	}

	virtual void OnPlaceObjectAbort()
	{
		/* abort drag & drop */
		this->vehicle_sel = INVALID_VEHICLE;
		this->DirtyHighlightedGroupWidget();
		this->group_over = INVALID_GROUP;
		this->SetWidgetDirty(WID_GL_LIST_VEHICLE);
	}

	virtual void OnMouseDrag(Point pt, int widget)
	{
		if (this->vehicle_sel == INVALID_VEHICLE && this->group_sel == INVALID_GROUP) return;

		/* A vehicle is dragged over... */
		GroupID new_group_over = INVALID_GROUP;
		switch (widget) {
			case WID_GL_DEFAULT_VEHICLES: // ... the 'default' group.
				new_group_over = DEFAULT_GROUP;
				break;

			case WID_GL_LIST_GROUP: { // ... the list of custom groups.
				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP, 0, this->tiny_step_height);
				new_group_over = id_g >= this->groups.Length() ? NEW_GROUP : this->groups[id_g]->index;
				break;
			}
		}

		/* Do not highlight when dragging over the current group */
		if (this->vehicle_sel != INVALID_VEHICLE) {
			if (Vehicle::Get(vehicle_sel)->group_id == new_group_over) new_group_over = INVALID_GROUP;
		} else if (this->group_sel != INVALID_GROUP) {
			if (this->group_sel == new_group_over || Group::Get(this->group_sel)->parent == new_group_over) new_group_over = INVALID_GROUP;
		}

		/* Mark widgets as dirty if the group changed. */
		if (new_group_over != this->group_over) {
			this->DirtyHighlightedGroupWidget();
			this->group_over = new_group_over;
			this->DirtyHighlightedGroupWidget();
		}
	}

	void ShowRenameGroupWindow(GroupID group, bool empty)
	{
		assert(Group::IsValidID(group));
		this->group_rename = group;
		/* Show empty query for new groups */
		StringID str = STR_EMPTY;
		if (!empty) {
			SetDParam(0, group);
			str = STR_GROUP_NAME;
		}
		ShowQueryString(str, STR_GROUP_RENAME_CAPTION, MAX_LENGTH_GROUP_NAME_CHARS, this, CS_ALPHANUMERAL, QSF_ENABLE_DEFAULT | QSF_LEN_IN_CHARS);
	}

	/**
	 * Tests whether a given vehicle is selected in the window, and unselects it if necessary.
	 * Called when the vehicle is deleted.
	 * @param vehicle Vehicle that is going to be deleted
	 */
	void UnselectVehicle(VehicleID vehicle)
	{
		if (this->vehicle_sel == vehicle) ResetObjectToPlace();
	}
};


static WindowDesc _other_group_desc(
	WDP_AUTO, "list_groups", 460, 246,
	WC_INVALID, WC_NONE,
	0,
	_nested_group_widgets, lengthof(_nested_group_widgets)
);

static WindowDesc _train_group_desc(
	WDP_AUTO, "list_groups_train", 525, 246,
	WC_TRAINS_LIST, WC_NONE,
	0,
	_nested_group_widgets, lengthof(_nested_group_widgets)
);

/**
 * Show the group window for the given company and vehicle type.
 * @param company The company to show the window for.
 * @param vehicle_type The type of vehicle to show it for.
 */
void ShowCompanyGroup(CompanyID company, VehicleType vehicle_type)
{
	if (!Company::IsValidID(company)) return;

	WindowNumber num = VehicleListIdentifier(VL_GROUP_LIST, vehicle_type, company).Pack();
	if (vehicle_type == VEH_TRAIN) {
		AllocateWindowDescFront<VehicleGroupWindow>(&_train_group_desc, num);
	} else {
		_other_group_desc.cls = GetWindowClassForVehicleType(vehicle_type);
		AllocateWindowDescFront<VehicleGroupWindow>(&_other_group_desc, num);
	}
}

/**
 * Finds a group list window determined by vehicle type and owner
 * @param vt vehicle type
 * @param owner owner of groups
 * @return pointer to VehicleGroupWindow, NULL if not found
 */
static inline VehicleGroupWindow *FindVehicleGroupWindow(VehicleType vt, Owner owner)
{
	return (VehicleGroupWindow *)FindWindowById(GetWindowClassForVehicleType(vt), VehicleListIdentifier(VL_GROUP_LIST, vt, owner).Pack());
}

/**
 * Opens a 'Rename group' window for newly created group.
 * @param result Did command succeed?
 * @param tile Unused.
 * @param p1 Vehicle type.
 * @param p2 Unused.
 * @see CmdCreateGroup
 */
void CcCreateGroup(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
{
	if (result.Failed()) return;
	assert(p1 <= VEH_AIRCRAFT);

	VehicleGroupWindow *w = FindVehicleGroupWindow((VehicleType)p1, _current_company);
	if (w != NULL) w->ShowRenameGroupWindow(_new_group_id, true);
}

/**
 * Open rename window after adding a vehicle to a new group via drag and drop.
 * @param result Did command succeed?
 * @param tile Unused.
 * @param p1 Unused.
 * @param p2 Bit 0-19: Vehicle ID.
 */
void CcAddVehicleNewGroup(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
{
	if (result.Failed()) return;
	assert(Vehicle::IsValidID(GB(p2, 0, 20)));

	CcCreateGroup(result, 0, Vehicle::Get(GB(p2, 0, 20))->type, 0);
}

/**
 * Removes the highlight of a vehicle in a group window
 * @param *v Vehicle to remove all highlights from
 */
void DeleteGroupHighlightOfVehicle(const Vehicle *v)
{
	/* If we haven't got any vehicles on the mouse pointer, we haven't got any highlighted in any group windows either
	 * If that is the case, we can skip looping though the windows and save time
	 */
	if (_special_mouse_mode != WSM_DRAGDROP) return;

	VehicleGroupWindow *w = FindVehicleGroupWindow(v->type, v->owner);
	if (w != NULL) w->UnselectVehicle(v->index);
}