1 /*
2  * This file is part of OpenTTD.
3  * 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.
4  * 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.
5  * 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/>.
6  */
7 
8 /** @file group_gui.cpp GUI for the group window. */
9 
10 #include "stdafx.h"
11 #include "textbuf_gui.h"
12 #include "command_func.h"
13 #include "vehicle_gui.h"
14 #include "vehicle_base.h"
15 #include "string_func.h"
16 #include "strings_func.h"
17 #include "window_func.h"
18 #include "vehicle_func.h"
19 #include "autoreplace_gui.h"
20 #include "company_func.h"
21 #include "widgets/dropdown_func.h"
22 #include "tilehighlight_func.h"
23 #include "vehicle_gui_base.h"
24 #include "core/geometry_func.hpp"
25 #include "company_base.h"
26 #include "company_gui.h"
27 #include "gui.h"
28 
29 #include "widgets/group_widget.h"
30 
31 #include "table/sprites.h"
32 
33 #include "safeguards.h"
34 
35 static const int LEVEL_WIDTH = 10; ///< Indenting width of a sub-group in pixels
36 
37 typedef GUIList<const Group*> GUIGroupList;
38 
39 static const NWidgetPart _nested_group_widgets[] = {
40 	NWidget(NWID_HORIZONTAL), // Window header
41 		NWidget(WWT_CLOSEBOX, COLOUR_GREY),
42 		NWidget(WWT_CAPTION, COLOUR_GREY, WID_GL_CAPTION),
43 		NWidget(WWT_SHADEBOX, COLOUR_GREY),
44 		NWidget(WWT_DEFSIZEBOX, COLOUR_GREY),
45 		NWidget(WWT_STICKYBOX, COLOUR_GREY),
46 	EndContainer(),
47 	NWidget(NWID_HORIZONTAL),
48 		/* left part */
49 		NWidget(NWID_VERTICAL),
50 			NWidget(WWT_PANEL, COLOUR_GREY, WID_GL_ALL_VEHICLES), SetFill(1, 0), EndContainer(),
51 			NWidget(WWT_PANEL, COLOUR_GREY, WID_GL_DEFAULT_VEHICLES), SetFill(1, 0), EndContainer(),
52 			NWidget(NWID_HORIZONTAL),
53 				NWidget(WWT_MATRIX, COLOUR_GREY, WID_GL_LIST_GROUP), SetMatrixDataTip(1, 0, STR_GROUPS_CLICK_ON_GROUP_FOR_TOOLTIP),
54 						SetFill(1, 0), SetResize(0, 1), SetScrollbar(WID_GL_LIST_GROUP_SCROLLBAR),
55 				NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_GL_LIST_GROUP_SCROLLBAR),
56 			EndContainer(),
57 			NWidget(WWT_PANEL, COLOUR_GREY, WID_GL_INFO), SetFill(1, 1), SetMinimalTextLines(3, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM), EndContainer(),
58 			NWidget(NWID_HORIZONTAL),
59 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_CREATE_GROUP),
60 						SetDataTip(SPR_GROUP_CREATE_TRAIN, STR_GROUP_CREATE_TOOLTIP),
61 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_DELETE_GROUP),
62 						SetDataTip(SPR_GROUP_DELETE_TRAIN, STR_GROUP_DELETE_TOOLTIP),
63 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_RENAME_GROUP),
64 						SetDataTip(SPR_GROUP_RENAME_TRAIN, STR_GROUP_RENAME_TOOLTIP),
65 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_LIVERY_GROUP),
66 						SetDataTip(SPR_GROUP_LIVERY_TRAIN, STR_GROUP_LIVERY_TOOLTIP),
67 				NWidget(WWT_PANEL, COLOUR_GREY), SetFill(1, 0), EndContainer(),
68 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_REPLACE_PROTECTION),
69 						SetDataTip(SPR_GROUP_REPLACE_OFF_TRAIN, STR_GROUP_REPLACE_PROTECTION_TOOLTIP),
70 			EndContainer(),
71 		EndContainer(),
72 		/* right part */
73 		NWidget(NWID_VERTICAL),
74 			NWidget(NWID_HORIZONTAL),
75 				NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GL_GROUP_BY_ORDER), SetMinimalSize(81, 12), SetDataTip(STR_STATION_VIEW_GROUP, STR_TOOLTIP_GROUP_ORDER),
76 				NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GL_GROUP_BY_DROPDOWN), SetMinimalSize(167, 12), SetDataTip(0x0, STR_TOOLTIP_GROUP_ORDER),
77 				NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(12, 12), SetResize(1, 0), EndContainer(),
78 			EndContainer(),
79 			NWidget(NWID_HORIZONTAL),
80 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GL_SORT_BY_ORDER), SetMinimalSize(81, 12), SetDataTip(STR_BUTTON_SORT_BY, STR_TOOLTIP_SORT_ORDER),
81 				NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GL_SORT_BY_DROPDOWN), SetMinimalSize(167, 12), SetDataTip(0x0, STR_TOOLTIP_SORT_CRITERIA),
82 				NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(12, 12), SetResize(1, 0), EndContainer(),
83 			EndContainer(),
84 			NWidget(NWID_HORIZONTAL),
85 				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),
86 				NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_GL_LIST_VEHICLE_SCROLLBAR),
87 			EndContainer(),
88 			NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(1, 0), SetFill(1, 1), SetResize(1, 0), EndContainer(),
89 			NWidget(NWID_HORIZONTAL),
90 				NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GL_AVAILABLE_VEHICLES), SetMinimalSize(106, 12),
91 						SetDataTip(STR_BLACK_STRING, STR_VEHICLE_LIST_AVAILABLE_ENGINES_TOOLTIP),
92 				NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetResize(1, 0), EndContainer(),
93 				NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GL_MANAGE_VEHICLES_DROPDOWN), SetMinimalSize(118, 12),
94 						SetDataTip(STR_VEHICLE_LIST_MANAGE_LIST, STR_VEHICLE_LIST_MANAGE_LIST_TOOLTIP),
95 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_STOP_ALL), SetMinimalSize(12, 12),
96 						SetDataTip(SPR_FLAG_VEH_STOPPED, STR_VEHICLE_LIST_MASS_STOP_LIST_TOOLTIP),
97 				NWidget(WWT_PUSHIMGBTN, COLOUR_GREY, WID_GL_START_ALL), SetMinimalSize(12, 12),
98 						SetDataTip(SPR_FLAG_VEH_RUNNING, STR_VEHICLE_LIST_MASS_START_LIST_TOOLTIP),
99 				NWidget(WWT_RESIZEBOX, COLOUR_GREY),
100 			EndContainer(),
101 		EndContainer(),
102 	EndContainer(),
103 };
104 
105 class VehicleGroupWindow : public BaseVehicleListWindow {
106 private:
107 	/* Columns in the group list */
108 	enum ListColumns {
109 		VGC_FOLD,          ///< Fold / Unfold button.
110 		VGC_NAME,          ///< Group name.
111 		VGC_PROTECT,       ///< Autoreplace protect icon.
112 		VGC_AUTOREPLACE,   ///< Autoreplace active icon.
113 		VGC_PROFIT,        ///< Profit icon.
114 		VGC_NUMBER,        ///< Number of vehicles in the group.
115 
116 		VGC_END
117 	};
118 
119 	VehicleID vehicle_sel; ///< Selected vehicle
120 	GroupID group_sel;     ///< Selected group (for drag/drop)
121 	GroupID group_rename;  ///< Group being renamed, INVALID_GROUP if none
122 	GroupID group_over;    ///< Group over which a vehicle is dragged, INVALID_GROUP if none
123 	GroupID group_confirm; ///< Group awaiting delete confirmation
124 	GUIGroupList groups;   ///< List of groups
125 	uint tiny_step_height; ///< Step height for the group list
126 	Scrollbar *group_sb;
127 
128 	std::vector<int> indents; ///< Indentation levels
129 
130 	Dimension column_size[VGC_END]; ///< Size of the columns in the group list.
131 
AddChildren(GUIGroupList * source,GroupID parent,int indent)132 	void AddChildren(GUIGroupList *source, GroupID parent, int indent)
133 	{
134 		for (const Group *g : *source) {
135 			if (g->parent != parent) continue;
136 			this->groups.push_back(g);
137 			this->indents.push_back(indent);
138 			if (g->folded) {
139 				/* Test if this group has children at all. If not, the folded flag should be cleared to avoid lingering unfold buttons in the list. */
140 				auto child = std::find_if(source->begin(), source->end(), [g](const Group *child){ return child->parent == g->index; });
141 				bool has_children = child != source->end();
142 				Group::Get(g->index)->folded = has_children;
143 			} else {
144 				AddChildren(source, g->index, indent + 1);
145 			}
146 		}
147 	}
148 
149 	/**
150 	 * (Re)Build the group list.
151 	 *
152 	 * @param owner The owner of the window
153 	 */
BuildGroupList(Owner owner)154 	void BuildGroupList(Owner owner)
155 	{
156 		if (!this->groups.NeedRebuild()) return;
157 
158 		this->groups.clear();
159 		this->indents.clear();
160 
161 		GUIGroupList list;
162 
163 		for (const Group *g : Group::Iterate()) {
164 			if (g->owner == owner && g->vehicle_type == this->vli.vtype) {
165 				list.push_back(g);
166 			}
167 		}
168 
169 		list.ForceResort();
170 
171 		/* Sort the groups by their name */
172 		const Group *last_group[2] = { nullptr, nullptr };
173 		char         last_name[2][64] = { "", "" };
174 		list.Sort([&](const Group * const &a, const Group * const &b) {
175 			if (a != last_group[0]) {
176 				last_group[0] = a;
177 				SetDParam(0, a->index);
178 				GetString(last_name[0], STR_GROUP_NAME, lastof(last_name[0]));
179 			}
180 
181 			if (b != last_group[1]) {
182 				last_group[1] = b;
183 				SetDParam(0, b->index);
184 				GetString(last_name[1], STR_GROUP_NAME, lastof(last_name[1]));
185 			}
186 
187 			int r = strnatcmp(last_name[0], last_name[1]); // Sort by name (natural sorting).
188 			if (r == 0) return a->index < b->index;
189 			return r < 0;
190 		});
191 
192 		AddChildren(&list, INVALID_GROUP, 0);
193 
194 		this->groups.shrink_to_fit();
195 		this->groups.RebuildDone();
196 	}
197 
198 	/**
199 	 * Compute tiny_step_height and column_size
200 	 * @return Total width required for the group list.
201 	 */
ComputeGroupInfoSize()202 	uint ComputeGroupInfoSize()
203 	{
204 		this->column_size[VGC_FOLD] = maxdim(GetSpriteSize(SPR_CIRCLE_FOLDED), GetSpriteSize(SPR_CIRCLE_UNFOLDED));
205 		this->tiny_step_height = this->column_size[VGC_FOLD].height;
206 
207 		this->column_size[VGC_NAME] = maxdim(GetStringBoundingBox(STR_GROUP_DEFAULT_TRAINS + this->vli.vtype), GetStringBoundingBox(STR_GROUP_ALL_TRAINS + this->vli.vtype));
208 		this->column_size[VGC_NAME].width = std::max(170u, this->column_size[VGC_NAME].width);
209 		this->tiny_step_height = std::max(this->tiny_step_height, this->column_size[VGC_NAME].height);
210 
211 		this->column_size[VGC_PROTECT] = GetSpriteSize(SPR_GROUP_REPLACE_PROTECT);
212 		this->tiny_step_height = std::max(this->tiny_step_height, this->column_size[VGC_PROTECT].height);
213 
214 		this->column_size[VGC_AUTOREPLACE] = GetSpriteSize(SPR_GROUP_REPLACE_ACTIVE);
215 		this->tiny_step_height = std::max(this->tiny_step_height, this->column_size[VGC_AUTOREPLACE].height);
216 
217 		this->column_size[VGC_PROFIT].width = 0;
218 		this->column_size[VGC_PROFIT].height = 0;
219 		static const SpriteID profit_sprites[] = {SPR_PROFIT_NA, SPR_PROFIT_NEGATIVE, SPR_PROFIT_SOME, SPR_PROFIT_LOT};
220 		for (uint i = 0; i < lengthof(profit_sprites); i++) {
221 			Dimension d = GetSpriteSize(profit_sprites[i]);
222 			this->column_size[VGC_PROFIT] = maxdim(this->column_size[VGC_PROFIT], d);
223 		}
224 		this->tiny_step_height = std::max(this->tiny_step_height, this->column_size[VGC_PROFIT].height);
225 
226 		int num_vehicle = GetGroupNumVehicle(this->vli.company, ALL_GROUP, this->vli.vtype);
227 		SetDParamMaxValue(0, num_vehicle, 3, FS_SMALL);
228 		SetDParamMaxValue(1, num_vehicle, 3, FS_SMALL);
229 		this->column_size[VGC_NUMBER] = GetStringBoundingBox(STR_GROUP_COUNT_WITH_SUBGROUP);
230 		this->tiny_step_height = std::max(this->tiny_step_height, this->column_size[VGC_NUMBER].height);
231 
232 		this->tiny_step_height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
233 
234 		return WD_FRAMERECT_LEFT + 8 +
235 			this->column_size[VGC_FOLD].width + 2 +
236 			this->column_size[VGC_NAME].width + 8 +
237 			this->column_size[VGC_PROTECT].width + 2 +
238 			this->column_size[VGC_AUTOREPLACE].width + 2 +
239 			this->column_size[VGC_PROFIT].width + 2 +
240 			this->column_size[VGC_NUMBER].width + 2 +
241 			WD_FRAMERECT_RIGHT;
242 	}
243 
244 	/**
245 	 * Draw a row in the group list.
246 	 * @param y Top of the row.
247 	 * @param left Left of the row.
248 	 * @param right Right of the row.
249 	 * @param g_id Group to list.
250 	 * @param indent Indentation level.
251 	 * @param protection Whether autoreplace protection is set.
252 	 * @param has_children Whether the group has children and should have a fold / unfold button.
253 	 */
DrawGroupInfo(int y,int left,int right,GroupID g_id,int indent=0,bool protection=false,bool has_children=false) const254 	void DrawGroupInfo(int y, int left, int right, GroupID g_id, int indent = 0, bool protection = false, bool has_children = false) const
255 	{
256 		/* Highlight the group if a vehicle is dragged over it */
257 		if (g_id == this->group_over) {
258 			GfxFillRect(left + WD_FRAMERECT_LEFT, y + WD_FRAMERECT_TOP + 1, right - WD_FRAMERECT_RIGHT, y + this->tiny_step_height - WD_FRAMERECT_BOTTOM - 1, _colour_gradient[COLOUR_GREY][7]);
259 		}
260 
261 		if (g_id == NEW_GROUP) return;
262 
263 		/* draw the selected group in white, else we draw it in black */
264 		TextColour colour = g_id == this->vli.index ? TC_WHITE : TC_BLACK;
265 		const GroupStatistics &stats = GroupStatistics::Get(this->vli.company, g_id, this->vli.vtype);
266 		bool rtl = _current_text_dir == TD_RTL;
267 
268 		/* draw fold / unfold button */
269 		int x = rtl ? right - WD_FRAMERECT_RIGHT - 8 - this->column_size[VGC_FOLD].width + 1 : left + WD_FRAMERECT_LEFT + 8;
270 		if (has_children) {
271 			DrawSprite(Group::Get(g_id)->folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED, PAL_NONE, rtl ? x - indent : x + indent, y + (this->tiny_step_height - this->column_size[VGC_FOLD].height) / 2);
272 		}
273 
274 		/* draw group name */
275 		StringID str;
276 		if (IsAllGroupID(g_id)) {
277 			str = STR_GROUP_ALL_TRAINS + this->vli.vtype;
278 		} else if (IsDefaultGroupID(g_id)) {
279 			str = STR_GROUP_DEFAULT_TRAINS + this->vli.vtype;
280 		} else {
281 			SetDParam(0, g_id);
282 			str = STR_GROUP_NAME;
283 		}
284 		x = rtl ? x - 2 - this->column_size[VGC_NAME].width : x + 2 + this->column_size[VGC_FOLD].width;
285 		DrawString(x + (rtl ? 0 : indent), x + this->column_size[VGC_NAME].width - 1 - (rtl ? indent : 0), y + (this->tiny_step_height - this->column_size[VGC_NAME].height) / 2, str, colour);
286 
287 		/* draw autoreplace protection */
288 		x = rtl ? x - 8 - this->column_size[VGC_PROTECT].width : x + 8 + this->column_size[VGC_NAME].width;
289 		if (protection) DrawSprite(SPR_GROUP_REPLACE_PROTECT, PAL_NONE, x, y + (this->tiny_step_height - this->column_size[VGC_PROTECT].height) / 2);
290 
291 		/* draw autoreplace status */
292 		x = rtl ? x - 2 - this->column_size[VGC_AUTOREPLACE].width : x + 2 + this->column_size[VGC_PROTECT].width;
293 		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);
294 
295 		/* draw the profit icon */
296 		x = rtl ? x - 2 - this->column_size[VGC_PROFIT].width : x + 2 + this->column_size[VGC_AUTOREPLACE].width;
297 		SpriteID spr;
298 		uint num_profit_vehicle = GetGroupNumProfitVehicle(this->vli.company, g_id, this->vli.vtype);
299 		Money profit_last_year = GetGroupProfitLastYear(this->vli.company, g_id, this->vli.vtype);
300 		if (num_profit_vehicle == 0) {
301 			spr = SPR_PROFIT_NA;
302 		} else if (profit_last_year < 0) {
303 			spr = SPR_PROFIT_NEGATIVE;
304 		} else if (profit_last_year < VEHICLE_PROFIT_THRESHOLD * num_profit_vehicle) {
305 			spr = SPR_PROFIT_SOME;
306 		} else {
307 			spr = SPR_PROFIT_LOT;
308 		}
309 		DrawSprite(spr, PAL_NONE, x, y + (this->tiny_step_height - this->column_size[VGC_PROFIT].height) / 2);
310 
311 		/* draw the number of vehicles of the group */
312 		x = rtl ? x - 2 - this->column_size[VGC_NUMBER].width : x + 2 + this->column_size[VGC_PROFIT].width;
313 		int num_vehicle_with_subgroups = GetGroupNumVehicle(this->vli.company, g_id, this->vli.vtype);
314 		int num_vehicle = GroupStatistics::Get(this->vli.company, g_id, this->vli.vtype).num_vehicle;
315 		if (IsAllGroupID(g_id) || IsDefaultGroupID(g_id) || num_vehicle_with_subgroups == num_vehicle) {
316 			SetDParam(0, num_vehicle);
317 			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);
318 		} else {
319 			SetDParam(0, num_vehicle);
320 			SetDParam(1, num_vehicle_with_subgroups - num_vehicle);
321 			DrawString(x, x + this->column_size[VGC_NUMBER].width - 1, y + (this->tiny_step_height - this->column_size[VGC_NUMBER].height) / 2, STR_GROUP_COUNT_WITH_SUBGROUP, colour, SA_RIGHT | SA_FORCE);
322 		}
323 	}
324 
325 	/**
326 	 * Mark the widget containing the currently highlighted group as dirty.
327 	 */
DirtyHighlightedGroupWidget()328 	void DirtyHighlightedGroupWidget()
329 	{
330 		if (this->group_over == INVALID_GROUP) return;
331 
332 		if (IsAllGroupID(this->group_over)) {
333 			this->SetWidgetDirty(WID_GL_ALL_VEHICLES);
334 		} else if (IsDefaultGroupID(this->group_over)) {
335 			this->SetWidgetDirty(WID_GL_DEFAULT_VEHICLES);
336 		} else {
337 			this->SetWidgetDirty(WID_GL_LIST_GROUP);
338 		}
339 	}
340 
341 public:
VehicleGroupWindow(WindowDesc * desc,WindowNumber window_number)342 	VehicleGroupWindow(WindowDesc *desc, WindowNumber window_number) : BaseVehicleListWindow(desc, window_number)
343 	{
344 		this->CreateNestedTree();
345 
346 		this->vscroll = this->GetScrollbar(WID_GL_LIST_VEHICLE_SCROLLBAR);
347 		this->group_sb = this->GetScrollbar(WID_GL_LIST_GROUP_SCROLLBAR);
348 
349 		this->vli.index = ALL_GROUP;
350 		this->vehicle_sel = INVALID_VEHICLE;
351 		this->group_sel = INVALID_GROUP;
352 		this->group_rename = INVALID_GROUP;
353 		this->group_over = INVALID_GROUP;
354 
355 		this->BuildVehicleList();
356 		this->SortVehicleList();
357 
358 		this->groups.ForceRebuild();
359 		this->groups.NeedResort();
360 		this->BuildGroupList(vli.company);
361 		this->group_sb->SetCount((uint)this->groups.size());
362 
363 		this->GetWidget<NWidgetCore>(WID_GL_CAPTION)->widget_data = STR_VEHICLE_LIST_TRAIN_CAPTION + this->vli.vtype;
364 		this->GetWidget<NWidgetCore>(WID_GL_LIST_VEHICLE)->tool_tip = STR_VEHICLE_LIST_TRAIN_LIST_TOOLTIP + this->vli.vtype;
365 
366 		this->GetWidget<NWidgetCore>(WID_GL_CREATE_GROUP)->widget_data += this->vli.vtype;
367 		this->GetWidget<NWidgetCore>(WID_GL_RENAME_GROUP)->widget_data += this->vli.vtype;
368 		this->GetWidget<NWidgetCore>(WID_GL_DELETE_GROUP)->widget_data += this->vli.vtype;
369 		this->GetWidget<NWidgetCore>(WID_GL_LIVERY_GROUP)->widget_data += this->vli.vtype;
370 		this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data += this->vli.vtype;
371 
372 		this->FinishInitNested(window_number);
373 		this->owner = vli.company;
374 	}
375 
~VehicleGroupWindow()376 	~VehicleGroupWindow()
377 	{
378 		*this->sorting = this->vehgroups.GetListing();
379 	}
380 
UpdateWidgetSize(int widget,Dimension * size,const Dimension & padding,Dimension * fill,Dimension * resize)381 	void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
382 	{
383 		switch (widget) {
384 			case WID_GL_LIST_GROUP: {
385 				size->width = this->ComputeGroupInfoSize();
386 				resize->height = this->tiny_step_height;
387 
388 				/* Minimum height is the height of the list widget minus all and default vehicles... */
389 				size->height = 4 * GetVehicleListHeight(this->vli.vtype, this->tiny_step_height);
390 
391 				/* ... minus the buttons at the bottom ... */
392 				uint max_icon_height = GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_CREATE_GROUP)->widget_data).height;
393 				max_icon_height = std::max(max_icon_height, GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_RENAME_GROUP)->widget_data).height);
394 				max_icon_height = std::max(max_icon_height, GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_DELETE_GROUP)->widget_data).height);
395 				max_icon_height = std::max(max_icon_height, GetSpriteSize(this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data).height);
396 
397 				/* ... minus the height of the group info ... */
398 				max_icon_height += (FONT_HEIGHT_NORMAL * 3) + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
399 
400 				/* Get a multiple of tiny_step_height of that amount */
401 				size->height = Ceil(size->height - max_icon_height, tiny_step_height);
402 				break;
403 			}
404 
405 			case WID_GL_ALL_VEHICLES:
406 			case WID_GL_DEFAULT_VEHICLES:
407 				size->width = this->ComputeGroupInfoSize();
408 				size->height = this->tiny_step_height;
409 				break;
410 
411 			case WID_GL_SORT_BY_ORDER: {
412 				Dimension d = GetStringBoundingBox(this->GetWidget<NWidgetCore>(widget)->widget_data);
413 				d.width += padding.width + Window::SortButtonWidth() * 2; // Doubled since the string is centred and it also looks better.
414 				d.height += padding.height;
415 				*size = maxdim(*size, d);
416 				break;
417 			}
418 
419 			case WID_GL_LIST_VEHICLE:
420 				this->ComputeGroupInfoSize();
421 				resize->height = GetVehicleListHeight(this->vli.vtype, this->tiny_step_height);
422 				size->height = 4 * resize->height;
423 				break;
424 
425 			case WID_GL_MANAGE_VEHICLES_DROPDOWN: {
426 				Dimension d = this->GetActionDropdownSize(true, true);
427 				d.height += padding.height;
428 				d.width  += padding.width;
429 				*size = maxdim(*size, d);
430 				break;
431 			}
432 		}
433 	}
434 
435 	/**
436 	 * Some data on this window has become invalid.
437 	 * @param data Information about the changed data.
438 	 * @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.
439 	 */
OnInvalidateData(int data=0,bool gui_scope=true)440 	void OnInvalidateData(int data = 0, bool gui_scope = true) override
441 	{
442 		if (data == 0) {
443 			/* This needs to be done in command-scope to enforce rebuilding before resorting invalid data */
444 			this->vehgroups.ForceRebuild();
445 			this->groups.ForceRebuild();
446 		} else {
447 			this->vehgroups.ForceResort();
448 			this->groups.ForceResort();
449 		}
450 
451 		/* Process ID-invalidation in command-scope as well */
452 		if (this->group_rename != INVALID_GROUP && !Group::IsValidID(this->group_rename)) {
453 			CloseWindowByClass(WC_QUERY_STRING);
454 			this->group_rename = INVALID_GROUP;
455 		}
456 
457 		if (!(IsAllGroupID(this->vli.index) || IsDefaultGroupID(this->vli.index) || Group::IsValidID(this->vli.index))) {
458 			this->vli.index = ALL_GROUP;
459 			HideDropDownMenu(this);
460 		}
461 		this->SetDirty();
462 	}
463 
SetStringParameters(int widget) const464 	void SetStringParameters(int widget) const override
465 	{
466 		switch (widget) {
467 			case WID_GL_AVAILABLE_VEHICLES:
468 				SetDParam(0, STR_VEHICLE_LIST_AVAILABLE_TRAINS + this->vli.vtype);
469 				break;
470 
471 			case WID_GL_CAPTION:
472 				/* If selected_group == DEFAULT_GROUP || ALL_GROUP, draw the standard caption
473 				 * We list all vehicles or ungrouped vehicles */
474 				if (IsDefaultGroupID(this->vli.index) || IsAllGroupID(this->vli.index)) {
475 					SetDParam(0, STR_COMPANY_NAME);
476 					SetDParam(1, this->vli.company);
477 					SetDParam(2, this->vehicles.size());
478 					SetDParam(3, this->vehicles.size());
479 				} else {
480 					uint num_vehicle = GetGroupNumVehicle(this->vli.company, this->vli.index, this->vli.vtype);
481 
482 					SetDParam(0, STR_GROUP_NAME);
483 					SetDParam(1, this->vli.index);
484 					SetDParam(2, num_vehicle);
485 					SetDParam(3, num_vehicle);
486 				}
487 				break;
488 		}
489 	}
490 
OnPaint()491 	void OnPaint() override
492 	{
493 		/* If we select the all vehicles, this->list will contain all vehicles of the owner
494 		 * else this->list will contain all vehicles which belong to the selected group */
495 		this->BuildVehicleList();
496 		this->SortVehicleList();
497 
498 		this->BuildGroupList(this->owner);
499 
500 		this->group_sb->SetCount(static_cast<int>(this->groups.size()));
501 		this->vscroll->SetCount(static_cast<int>(this->vehgroups.size()));
502 
503 		/* The drop down menu is out, *but* it may not be used, retract it. */
504 		if (this->vehicles.size() == 0 && this->IsWidgetLowered(WID_GL_MANAGE_VEHICLES_DROPDOWN)) {
505 			this->RaiseWidget(WID_GL_MANAGE_VEHICLES_DROPDOWN);
506 			HideDropDownMenu(this);
507 		}
508 
509 		/* Disable all lists management button when the list is empty */
510 		this->SetWidgetsDisabledState(this->vehicles.size() == 0 || _local_company != this->vli.company,
511 				WID_GL_STOP_ALL,
512 				WID_GL_START_ALL,
513 				WID_GL_MANAGE_VEHICLES_DROPDOWN,
514 				WIDGET_LIST_END);
515 
516 		/* Disable the group specific function when we select the default group or all vehicles */
517 		this->SetWidgetsDisabledState(IsDefaultGroupID(this->vli.index) || IsAllGroupID(this->vli.index) || _local_company != this->vli.company,
518 				WID_GL_DELETE_GROUP,
519 				WID_GL_RENAME_GROUP,
520 				WID_GL_LIVERY_GROUP,
521 				WID_GL_REPLACE_PROTECTION,
522 				WIDGET_LIST_END);
523 
524 		/* Disable remaining buttons for non-local companies
525 		 * Needed while changing _local_company, eg. by cheats
526 		 * All procedures (eg. move vehicle to another group)
527 		 *  verify, whether you are the owner of the vehicle,
528 		 *  so it doesn't have to be disabled
529 		 */
530 		this->SetWidgetsDisabledState(_local_company != this->vli.company,
531 				WID_GL_CREATE_GROUP,
532 				WID_GL_AVAILABLE_VEHICLES,
533 				WIDGET_LIST_END);
534 
535 		/* If not a default group and the group has replace protection, show an enabled replace sprite. */
536 		uint16 protect_sprite = SPR_GROUP_REPLACE_OFF_TRAIN;
537 		if (!IsDefaultGroupID(this->vli.index) && !IsAllGroupID(this->vli.index) && HasBit(Group::Get(this->vli.index)->flags, GroupFlags::GF_REPLACE_PROTECTION)) protect_sprite = SPR_GROUP_REPLACE_ON_TRAIN;
538 		this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data = protect_sprite + this->vli.vtype;
539 
540 		/* Set text of "group by" dropdown widget. */
541 		this->GetWidget<NWidgetCore>(WID_GL_GROUP_BY_DROPDOWN)->widget_data = this->vehicle_group_by_names[this->grouping];
542 
543 		/* Set text of "sort by" dropdown widget. */
544 		this->GetWidget<NWidgetCore>(WID_GL_SORT_BY_DROPDOWN)->widget_data = this->GetVehicleSorterNames()[this->vehgroups.SortType()];
545 
546 		this->DrawWidgets();
547 	}
548 
DrawWidget(const Rect & r,int widget) const549 	void DrawWidget(const Rect &r, int widget) const override
550 	{
551 		switch (widget) {
552 			case WID_GL_ALL_VEHICLES:
553 				DrawGroupInfo(r.top, r.left, r.right, ALL_GROUP);
554 				break;
555 
556 			case WID_GL_DEFAULT_VEHICLES:
557 				DrawGroupInfo(r.top, r.left, r.right, DEFAULT_GROUP);
558 				break;
559 
560 			case WID_GL_INFO: {
561 				Money this_year = 0;
562 				Money last_year = 0;
563 				uint64 occupancy = 0;
564 
565 				for (const Vehicle * const v : this->vehicles) {
566 					assert(v->owner == this->owner);
567 
568 					this_year += v->GetDisplayProfitThisYear();
569 					last_year += v->GetDisplayProfitLastYear();
570 					occupancy += v->trip_occupancy;
571 				}
572 
573 				const int left  = r.left + WD_FRAMERECT_LEFT + 8;
574 				const int right = r.right - WD_FRAMERECT_RIGHT - 8;
575 
576 				int y = r.top + WD_FRAMERECT_TOP;
577 				DrawString(left, right, y, STR_GROUP_PROFIT_THIS_YEAR, TC_BLACK);
578 				SetDParam(0, this_year);
579 				DrawString(left, right, y, STR_JUST_CURRENCY_LONG, TC_BLACK, SA_RIGHT);
580 
581 				y += FONT_HEIGHT_NORMAL;
582 				DrawString(left, right, y, STR_GROUP_PROFIT_LAST_YEAR, TC_BLACK);
583 				SetDParam(0, last_year);
584 				DrawString(left, right, y, STR_JUST_CURRENCY_LONG, TC_BLACK, SA_RIGHT);
585 
586 				y += FONT_HEIGHT_NORMAL;
587 				DrawString(left, right, y, STR_GROUP_OCCUPANCY, TC_BLACK);
588 				const size_t vehicle_count = this->vehicles.size();
589 				if (vehicle_count > 0) {
590 					SetDParam(0, occupancy / vehicle_count);
591 					DrawString(left, right, y, STR_GROUP_OCCUPANCY_VALUE, TC_BLACK, SA_RIGHT);
592 				}
593 
594 				break;
595 			}
596 
597 			case WID_GL_LIST_GROUP: {
598 				int y1 = r.top;
599 				int max = std::min<size_t>(this->group_sb->GetPosition() + this->group_sb->GetCapacity(), this->groups.size());
600 				for (int i = this->group_sb->GetPosition(); i < max; ++i) {
601 					const Group *g = this->groups[i];
602 
603 					assert(g->owner == this->owner);
604 
605 					DrawGroupInfo(y1, r.left, r.right, g->index, this->indents[i] * LEVEL_WIDTH, HasBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION), g->folded || (i + 1 < (int)this->groups.size() && indents[i + 1] > this->indents[i]));
606 
607 					y1 += this->tiny_step_height;
608 				}
609 				if ((uint)this->group_sb->GetPosition() + this->group_sb->GetCapacity() > this->groups.size()) {
610 					DrawGroupInfo(y1, r.left, r.right, NEW_GROUP);
611 				}
612 				break;
613 			}
614 
615 			case WID_GL_SORT_BY_ORDER:
616 				this->DrawSortButtonState(WID_GL_SORT_BY_ORDER, this->vehgroups.IsDescSortOrder() ? SBS_DOWN : SBS_UP);
617 				break;
618 
619 			case WID_GL_LIST_VEHICLE:
620 				if (this->vli.index != ALL_GROUP && this->grouping == GB_NONE) {
621 					/* Mark vehicles which are in sub-groups (only if we are not using shared order coalescing) */
622 					int y = r.top;
623 					uint max = static_cast<uint>(std::min<size_t>(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->vehgroups.size()));
624 					for (uint i = this->vscroll->GetPosition(); i < max; ++i) {
625 						const Vehicle *v = this->vehgroups[i].GetSingleVehicle();
626 						if (v->group_id != this->vli.index) {
627 							GfxFillRect(r.left + 1, y + 1, r.right - 1, y + this->resize.step_height - 2, _colour_gradient[COLOUR_GREY][3], FILLRECT_CHECKER);
628 						}
629 						y += this->resize.step_height;
630 					}
631 				}
632 
633 				this->DrawVehicleListItems(this->vehicle_sel, this->resize.step_height, r);
634 				break;
635 		}
636 	}
637 
DeleteGroupCallback(Window * win,bool confirmed)638 	static void DeleteGroupCallback(Window *win, bool confirmed)
639 	{
640 		if (confirmed) {
641 			VehicleGroupWindow *w = (VehicleGroupWindow*)win;
642 			w->vli.index = ALL_GROUP;
643 			DoCommandP(0, w->group_confirm, 0, CMD_DELETE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_DELETE));
644 		}
645 	}
646 
OnClick(Point pt,int widget,int click_count)647 	void OnClick(Point pt, int widget, int click_count) override
648 	{
649 		switch (widget) {
650 			case WID_GL_SORT_BY_ORDER: // Flip sorting method ascending/descending
651 				this->vehgroups.ToggleSortOrder();
652 				this->SetDirty();
653 				break;
654 
655 			case WID_GL_GROUP_BY_DROPDOWN: // Select grouping option dropdown menu
656 				ShowDropDownMenu(this, this->vehicle_group_by_names, this->grouping, WID_GL_GROUP_BY_DROPDOWN, 0, 0);
657 				return;
658 
659 			case WID_GL_SORT_BY_DROPDOWN: // Select sorting criteria dropdown menu
660 				ShowDropDownMenu(this, this->GetVehicleSorterNames(), this->vehgroups.SortType(),  WID_GL_SORT_BY_DROPDOWN, 0, (this->vli.vtype == VEH_TRAIN || this->vli.vtype == VEH_ROAD) ? 0 : (1 << 10));
661 				return;
662 
663 			case WID_GL_ALL_VEHICLES: // All vehicles button
664 				if (!IsAllGroupID(this->vli.index)) {
665 					this->vli.index = ALL_GROUP;
666 					this->vehgroups.ForceRebuild();
667 					this->SetDirty();
668 				}
669 				break;
670 
671 			case WID_GL_DEFAULT_VEHICLES: // Ungrouped vehicles button
672 				if (!IsDefaultGroupID(this->vli.index)) {
673 					this->vli.index = DEFAULT_GROUP;
674 					this->vehgroups.ForceRebuild();
675 					this->SetDirty();
676 				}
677 				break;
678 
679 			case WID_GL_LIST_GROUP: { // Matrix Group
680 				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP);
681 				if (id_g >= this->groups.size()) return;
682 
683 				if (groups[id_g]->folded || (id_g + 1 < this->groups.size() && this->indents[id_g + 1] > this->indents[id_g])) {
684 					/* The group has children, check if the user clicked the fold / unfold button. */
685 					NWidgetCore *group_display = this->GetWidget<NWidgetCore>(widget);
686 					int x = _current_text_dir == TD_RTL ?
687 							group_display->pos_x + group_display->current_x - WD_FRAMERECT_RIGHT - 8 - this->indents[id_g] * LEVEL_WIDTH - this->column_size[VGC_FOLD].width :
688 							group_display->pos_x + WD_FRAMERECT_LEFT + 8 + this->indents[id_g] * LEVEL_WIDTH;
689 					if (click_count > 1 || (pt.x >= x && pt.x < (int)(x + this->column_size[VGC_FOLD].width))) {
690 
691 						GroupID g = this->vli.index;
692 						if (!IsAllGroupID(g) && !IsDefaultGroupID(g)) {
693 							do {
694 								g = Group::Get(g)->parent;
695 								if (g == groups[id_g]->index) {
696 									this->vli.index = g;
697 									break;
698 								}
699 							} while (g != INVALID_GROUP);
700 						}
701 
702 						Group::Get(groups[id_g]->index)->folded = !groups[id_g]->folded;
703 						this->groups.ForceRebuild();
704 
705 						this->SetDirty();
706 						break;
707 					}
708 				}
709 
710 				this->group_sel = this->vli.index = this->groups[id_g]->index;
711 
712 				SetObjectToPlaceWnd(SPR_CURSOR_MOUSE, PAL_NONE, HT_DRAG, this);
713 
714 				this->vehgroups.ForceRebuild();
715 				this->SetDirty();
716 				break;
717 			}
718 
719 			case WID_GL_LIST_VEHICLE: { // Matrix Vehicle
720 				uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_VEHICLE);
721 				if (id_v >= this->vehgroups.size()) return; // click out of list bound
722 
723 				const GUIVehicleGroup &vehgroup = this->vehgroups[id_v];
724 
725 				const Vehicle *v = nullptr;
726 
727 				switch (this->grouping) {
728 					case GB_NONE: {
729 						const Vehicle *v2 = vehgroup.GetSingleVehicle();
730 						if (VehicleClicked(v2)) break;
731 						v = v2;
732 						break;
733 					}
734 
735 					case GB_SHARED_ORDERS: {
736 						assert(vehgroup.NumVehicles() > 0);
737 						v = vehgroup.vehicles_begin[0];
738 						/*
739 						 * No VehicleClicked(v) support for now, because don't want
740 						 * to enable any contextual actions except perhaps clicking/ctrl-clicking to clone orders.
741 						 */
742 						break;
743 					}
744 
745 					default:
746 						NOT_REACHED();
747 				}
748 				if (v) {
749 					if (_ctrl_pressed) {
750 						if (this->grouping == GB_NONE) {
751 							this->SelectGroup(v->group_id);
752 						} else {
753 							ShowOrdersWindow(v);
754 						}
755 					} else {
756 						this->vehicle_sel = v->index;
757 						SetObjectToPlaceWnd(SPR_CURSOR_MOUSE, PAL_NONE, HT_DRAG, this);
758 						SetMouseCursorVehicle(v, EIT_IN_LIST);
759 						_cursor.vehchain = true;
760 						this->SetDirty();
761 					}
762 				}
763 
764 				break;
765 			}
766 
767 			case WID_GL_CREATE_GROUP: { // Create a new group
768 				DoCommandP(0, this->vli.vtype, this->vli.index, CMD_CREATE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_CREATE), CcCreateGroup);
769 				break;
770 			}
771 
772 			case WID_GL_DELETE_GROUP: { // Delete the selected group
773 				this->group_confirm = this->vli.index;
774 				ShowQuery(STR_QUERY_GROUP_DELETE_CAPTION, STR_GROUP_DELETE_QUERY_TEXT, this, DeleteGroupCallback);
775 				break;
776 			}
777 
778 			case WID_GL_RENAME_GROUP: // Rename the selected roup
779 				this->ShowRenameGroupWindow(this->vli.index, false);
780 				break;
781 
782 			case WID_GL_LIVERY_GROUP: // Set group livery
783 				ShowCompanyLiveryWindow(this->owner, this->vli.index);
784 				break;
785 
786 			case WID_GL_AVAILABLE_VEHICLES:
787 				ShowBuildVehicleWindow(INVALID_TILE, this->vli.vtype);
788 				break;
789 
790 			case WID_GL_MANAGE_VEHICLES_DROPDOWN: {
791 				ShowDropDownList(this, this->BuildActionDropdownList(true, Group::IsValidID(this->vli.index)), 0, WID_GL_MANAGE_VEHICLES_DROPDOWN);
792 				break;
793 			}
794 
795 			case WID_GL_START_ALL:
796 			case WID_GL_STOP_ALL: { // Start/stop all vehicles of the list
797 				DoCommandP(0, (1 << 1) | (widget == WID_GL_START_ALL ? (1 << 0) : 0), this->vli.Pack(), CMD_MASS_START_STOP);
798 				break;
799 			}
800 
801 			case WID_GL_REPLACE_PROTECTION: {
802 				const Group *g = Group::GetIfValid(this->vli.index);
803 				if (g != nullptr) {
804 					DoCommandP(0, this->vli.index | (GroupFlags::GF_REPLACE_PROTECTION << 16), (HasBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION) ? 0 : 1) | (_ctrl_pressed << 1), CMD_SET_GROUP_FLAG);
805 				}
806 				break;
807 			}
808 		}
809 	}
810 
OnDragDrop_Group(Point pt,int widget)811 	void OnDragDrop_Group(Point pt, int widget)
812 	{
813 		const Group *g = Group::Get(this->group_sel);
814 
815 		switch (widget) {
816 			case WID_GL_ALL_VEHICLES: // All vehicles
817 			case WID_GL_DEFAULT_VEHICLES: // Ungrouped vehicles
818 				if (g->parent != INVALID_GROUP) {
819 					DoCommandP(0, this->group_sel | (1 << 16), INVALID_GROUP, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_SET_PARENT));
820 				}
821 
822 				this->group_sel = INVALID_GROUP;
823 				this->group_over = INVALID_GROUP;
824 				this->SetDirty();
825 				break;
826 
827 			case WID_GL_LIST_GROUP: { // Matrix group
828 				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP);
829 				GroupID new_g = id_g >= this->groups.size() ? INVALID_GROUP : this->groups[id_g]->index;
830 
831 				if (this->group_sel != new_g && g->parent != new_g) {
832 					DoCommandP(0, this->group_sel | (1 << 16), new_g, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_SET_PARENT));
833 				}
834 
835 				this->group_sel = INVALID_GROUP;
836 				this->group_over = INVALID_GROUP;
837 				this->SetDirty();
838 				break;
839 			}
840 		}
841 	}
842 
OnDragDrop_Vehicle(Point pt,int widget)843 	void OnDragDrop_Vehicle(Point pt, int widget)
844 	{
845 		switch (widget) {
846 			case WID_GL_DEFAULT_VEHICLES: // Ungrouped vehicles
847 				DoCommandP(0, DEFAULT_GROUP, this->vehicle_sel | (_ctrl_pressed || this->grouping == GB_SHARED_ORDERS ? 1 << 31 : 0), CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE));
848 
849 				this->vehicle_sel = INVALID_VEHICLE;
850 				this->group_over = INVALID_GROUP;
851 
852 				this->SetDirty();
853 				break;
854 
855 			case WID_GL_LIST_GROUP: { // Matrix group
856 				const VehicleID vindex = this->vehicle_sel;
857 				this->vehicle_sel = INVALID_VEHICLE;
858 				this->group_over = INVALID_GROUP;
859 				this->SetDirty();
860 
861 				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP);
862 				GroupID new_g = id_g >= this->groups.size() ? NEW_GROUP : this->groups[id_g]->index;
863 
864 				DoCommandP(0, new_g, vindex | (_ctrl_pressed || this->grouping == GB_SHARED_ORDERS ? 1 << 31 : 0), CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE), new_g == NEW_GROUP ? CcAddVehicleNewGroup : nullptr);
865 				break;
866 			}
867 
868 			case WID_GL_LIST_VEHICLE: { // Matrix vehicle
869 				const VehicleID vindex = this->vehicle_sel;
870 				this->vehicle_sel = INVALID_VEHICLE;
871 				this->group_over = INVALID_GROUP;
872 				this->SetDirty();
873 
874 				uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_VEHICLE);
875 				if (id_v >= this->vehgroups.size()) return; // click out of list bound
876 
877 				const GUIVehicleGroup &vehgroup = this->vehgroups[id_v];
878 				switch (this->grouping) {
879 					case GB_NONE: {
880 						const Vehicle *v = vehgroup.GetSingleVehicle();
881 						if (!VehicleClicked(v) && vindex == v->index) {
882 							ShowVehicleViewWindow(v);
883 						}
884 						break;
885 					}
886 
887 					case GB_SHARED_ORDERS: {
888 						const Vehicle *v = vehgroup.vehicles_begin[0];
889 						/* We do not support VehicleClicked() here since the contextual action may only make sense for individual vehicles */
890 
891 						if (vindex == v->index) {
892 							if (vehgroup.NumVehicles() == 1) {
893 								ShowVehicleViewWindow(v);
894 							} else {
895 								ShowVehicleListWindow(v);
896 							}
897 						}
898 						break;
899 					}
900 
901 					default:
902 						NOT_REACHED();
903 				}
904 				break;
905 			}
906 		}
907 	}
908 
OnDragDrop(Point pt,int widget)909 	void OnDragDrop(Point pt, int widget) override
910 	{
911 		if (this->vehicle_sel != INVALID_VEHICLE) OnDragDrop_Vehicle(pt, widget);
912 		if (this->group_sel != INVALID_GROUP) OnDragDrop_Group(pt, widget);
913 
914 		_cursor.vehchain = false;
915 	}
916 
OnQueryTextFinished(char * str)917 	void OnQueryTextFinished(char *str) override
918 	{
919 		if (str != nullptr) DoCommandP(0, this->group_rename, 0, CMD_ALTER_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_RENAME), nullptr, str);
920 		this->group_rename = INVALID_GROUP;
921 	}
922 
OnResize()923 	void OnResize() override
924 	{
925 		this->group_sb->SetCapacityFromWidget(this, WID_GL_LIST_GROUP);
926 		this->vscroll->SetCapacityFromWidget(this, WID_GL_LIST_VEHICLE);
927 	}
928 
OnDropdownSelect(int widget,int index)929 	void OnDropdownSelect(int widget, int index) override
930 	{
931 		switch (widget) {
932 			case WID_GL_GROUP_BY_DROPDOWN:
933 				this->UpdateVehicleGroupBy(static_cast<GroupBy>(index));
934 				break;
935 
936 			case WID_GL_SORT_BY_DROPDOWN:
937 				this->vehgroups.SetSortType(index);
938 				break;
939 
940 			case WID_GL_MANAGE_VEHICLES_DROPDOWN:
941 				assert(this->vehicles.size() != 0);
942 
943 				switch (index) {
944 					case ADI_REPLACE: // Replace window
945 						ShowReplaceGroupVehicleWindow(this->vli.index, this->vli.vtype);
946 						break;
947 					case ADI_SERVICE: // Send for servicing
948 					case ADI_DEPOT: { // Send to Depots
949 						DoCommandP(0, DEPOT_MASS_SEND | (index == ADI_SERVICE ? DEPOT_SERVICE : 0U), this->vli.Pack(), GetCmdSendToDepot(this->vli.vtype));
950 						break;
951 					}
952 
953 					case ADI_ADD_SHARED: // Add shared Vehicles
954 						assert(Group::IsValidID(this->vli.index));
955 
956 						DoCommandP(0, this->vli.index, this->vli.vtype, CMD_ADD_SHARED_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_SHARED_VEHICLE));
957 						break;
958 					case ADI_REMOVE_ALL: // Remove all Vehicles from the selected group
959 						assert(Group::IsValidID(this->vli.index));
960 
961 						DoCommandP(0, this->vli.index, 0, CMD_REMOVE_ALL_VEHICLES_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_REMOVE_ALL_VEHICLES));
962 						break;
963 					default: NOT_REACHED();
964 				}
965 				break;
966 
967 			default: NOT_REACHED();
968 		}
969 
970 		this->SetDirty();
971 	}
972 
OnGameTick()973 	void OnGameTick() override
974 	{
975 		if (this->groups.NeedResort() || this->vehgroups.NeedResort()) {
976 			this->SetDirty();
977 		}
978 	}
979 
OnPlaceObjectAbort()980 	void OnPlaceObjectAbort() override
981 	{
982 		/* abort drag & drop */
983 		this->vehicle_sel = INVALID_VEHICLE;
984 		this->DirtyHighlightedGroupWidget();
985 		this->group_sel = INVALID_GROUP;
986 		this->group_over = INVALID_GROUP;
987 		this->SetWidgetDirty(WID_GL_LIST_VEHICLE);
988 	}
989 
OnMouseDrag(Point pt,int widget)990 	void OnMouseDrag(Point pt, int widget) override
991 	{
992 		if (this->vehicle_sel == INVALID_VEHICLE && this->group_sel == INVALID_GROUP) return;
993 
994 		/* A vehicle is dragged over... */
995 		GroupID new_group_over = INVALID_GROUP;
996 		switch (widget) {
997 			case WID_GL_DEFAULT_VEHICLES: // ... the 'default' group.
998 				new_group_over = DEFAULT_GROUP;
999 				break;
1000 
1001 			case WID_GL_LIST_GROUP: { // ... the list of custom groups.
1002 				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP);
1003 				new_group_over = id_g >= this->groups.size() ? NEW_GROUP : this->groups[id_g]->index;
1004 				break;
1005 			}
1006 		}
1007 
1008 		/* Do not highlight when dragging over the current group */
1009 		if (this->vehicle_sel != INVALID_VEHICLE) {
1010 			if (Vehicle::Get(vehicle_sel)->group_id == new_group_over) new_group_over = INVALID_GROUP;
1011 		} else if (this->group_sel != INVALID_GROUP) {
1012 			if (this->group_sel == new_group_over || Group::Get(this->group_sel)->parent == new_group_over) new_group_over = INVALID_GROUP;
1013 		}
1014 
1015 		/* Mark widgets as dirty if the group changed. */
1016 		if (new_group_over != this->group_over) {
1017 			this->DirtyHighlightedGroupWidget();
1018 			this->group_over = new_group_over;
1019 			this->DirtyHighlightedGroupWidget();
1020 		}
1021 	}
1022 
ShowRenameGroupWindow(GroupID group,bool empty)1023 	void ShowRenameGroupWindow(GroupID group, bool empty)
1024 	{
1025 		assert(Group::IsValidID(group));
1026 		this->group_rename = group;
1027 		/* Show empty query for new groups */
1028 		StringID str = STR_EMPTY;
1029 		if (!empty) {
1030 			SetDParam(0, group);
1031 			str = STR_GROUP_NAME;
1032 		}
1033 		ShowQueryString(str, STR_GROUP_RENAME_CAPTION, MAX_LENGTH_GROUP_NAME_CHARS, this, CS_ALPHANUMERAL, QSF_ENABLE_DEFAULT | QSF_LEN_IN_CHARS);
1034 	}
1035 
1036 	/**
1037 	 * Tests whether a given vehicle is selected in the window, and unselects it if necessary.
1038 	 * Called when the vehicle is deleted.
1039 	 * @param vehicle Vehicle that is going to be deleted
1040 	 */
UnselectVehicle(VehicleID vehicle)1041 	void UnselectVehicle(VehicleID vehicle)
1042 	{
1043 		if (this->vehicle_sel == vehicle) ResetObjectToPlace();
1044 	}
1045 
1046 	/**
1047 	 * Selects the specified group in the list
1048 	 *
1049 	 * @param g_id The ID of the group to be selected
1050 	 */
SelectGroup(const GroupID g_id)1051 	void SelectGroup(const GroupID g_id)
1052 	{
1053 		if (g_id == INVALID_GROUP || g_id == this->vli.index) return;
1054 
1055 		this->vli.index = g_id;
1056 		if (g_id != ALL_GROUP && g_id != DEFAULT_GROUP) {
1057 			const Group *g = Group::Get(g_id);
1058 			int id_g = find_index(this->groups, g);
1059 			// The group's branch is maybe collapsed, so try to expand it
1060 			if (id_g == -1) {
1061 				for (auto pg = Group::GetIfValid(g->parent); pg != nullptr; pg = Group::GetIfValid(pg->parent)) {
1062 					pg->folded = false;
1063 				}
1064 				this->groups.ForceRebuild();
1065 				this->BuildGroupList(this->owner);
1066 				this->group_sb->SetCount((uint)this->groups.size());
1067 				id_g = find_index(this->groups, g);
1068 			}
1069 			this->group_sb->ScrollTowards(id_g);
1070 		}
1071 		this->vehgroups.ForceRebuild();
1072 		this->SetDirty();
1073 	}
1074 
1075 };
1076 
1077 
1078 static WindowDesc _other_group_desc(
1079 	WDP_AUTO, "list_groups", 460, 246,
1080 	WC_INVALID, WC_NONE,
1081 	0,
1082 	_nested_group_widgets, lengthof(_nested_group_widgets)
1083 );
1084 
1085 static WindowDesc _train_group_desc(
1086 	WDP_AUTO, "list_groups_train", 525, 246,
1087 	WC_TRAINS_LIST, WC_NONE,
1088 	0,
1089 	_nested_group_widgets, lengthof(_nested_group_widgets)
1090 );
1091 
1092 /**
1093  * Show the group window for the given company and vehicle type.
1094  * @param company The company to show the window for.
1095  * @param vehicle_type The type of vehicle to show it for.
1096  * @param group The group to be selected. Defaults to INVALID_GROUP.
1097  * @param need_existing_window Whether the existing window is needed. Defaults to false.
1098  */
ShowCompanyGroup(CompanyID company,VehicleType vehicle_type,GroupID group=INVALID_GROUP,bool need_existing_window=false)1099 void ShowCompanyGroup(CompanyID company, VehicleType vehicle_type, GroupID group = INVALID_GROUP, bool need_existing_window = false)
1100 {
1101 	if (!Company::IsValidID(company)) return;
1102 
1103 	const WindowNumber num = VehicleListIdentifier(VL_GROUP_LIST, vehicle_type, company).Pack();
1104 	VehicleGroupWindow *w;
1105 	if (vehicle_type == VEH_TRAIN) {
1106 		w = AllocateWindowDescFront<VehicleGroupWindow>(&_train_group_desc, num, need_existing_window);
1107 	} else {
1108 		_other_group_desc.cls = GetWindowClassForVehicleType(vehicle_type);
1109 		w = AllocateWindowDescFront<VehicleGroupWindow>(&_other_group_desc, num, need_existing_window);
1110 	}
1111 	if (w != nullptr) w->SelectGroup(group);
1112 }
1113 
1114 /**
1115  * Show the group window for the given vehicle.
1116  * @param v The vehicle to show the window for.
1117  */
ShowCompanyGroupForVehicle(const Vehicle * v)1118 void ShowCompanyGroupForVehicle(const Vehicle *v)
1119 {
1120 	ShowCompanyGroup(v->owner, v->type, v->group_id, true);
1121 }
1122 
1123 /**
1124  * Finds a group list window determined by vehicle type and owner
1125  * @param vt vehicle type
1126  * @param owner owner of groups
1127  * @return pointer to VehicleGroupWindow, nullptr if not found
1128  */
FindVehicleGroupWindow(VehicleType vt,Owner owner)1129 static inline VehicleGroupWindow *FindVehicleGroupWindow(VehicleType vt, Owner owner)
1130 {
1131 	return (VehicleGroupWindow *)FindWindowById(GetWindowClassForVehicleType(vt), VehicleListIdentifier(VL_GROUP_LIST, vt, owner).Pack());
1132 }
1133 
1134 /**
1135  * Opens a 'Rename group' window for newly created group.
1136  * @param result Did command succeed?
1137  * @param tile Unused.
1138  * @param p1 Vehicle type.
1139  * @param p2 Unused.
1140  * @param cmd Unused.
1141  * @see CmdCreateGroup
1142  */
CcCreateGroup(const CommandCost & result,TileIndex tile,uint32 p1,uint32 p2,uint32 cmd)1143 void CcCreateGroup(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2, uint32 cmd)
1144 {
1145 	if (result.Failed()) return;
1146 	assert(p1 <= VEH_AIRCRAFT);
1147 
1148 	VehicleGroupWindow *w = FindVehicleGroupWindow((VehicleType)p1, _current_company);
1149 	if (w != nullptr) w->ShowRenameGroupWindow(_new_group_id, true);
1150 }
1151 
1152 /**
1153  * Open rename window after adding a vehicle to a new group via drag and drop.
1154  * @param result Did command succeed?
1155  * @param tile Unused.
1156  * @param p1 Unused.
1157  * @param p2 Bit 0-19: Vehicle ID.
1158  * @param cmd Unused.
1159  */
CcAddVehicleNewGroup(const CommandCost & result,TileIndex tile,uint32 p1,uint32 p2,uint32 cmd)1160 void CcAddVehicleNewGroup(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2, uint32 cmd)
1161 {
1162 	if (result.Failed()) return;
1163 	assert(Vehicle::IsValidID(GB(p2, 0, 20)));
1164 
1165 	CcCreateGroup(result, 0, Vehicle::Get(GB(p2, 0, 20))->type, 0, cmd);
1166 }
1167 
1168 /**
1169  * Removes the highlight of a vehicle in a group window
1170  * @param *v Vehicle to remove all highlights from
1171  */
DeleteGroupHighlightOfVehicle(const Vehicle * v)1172 void DeleteGroupHighlightOfVehicle(const Vehicle *v)
1173 {
1174 	/* If we haven't got any vehicles on the mouse pointer, we haven't got any highlighted in any group windows either
1175 	 * If that is the case, we can skip looping though the windows and save time
1176 	 */
1177 	if (_special_mouse_mode != WSM_DRAGDROP) return;
1178 
1179 	VehicleGroupWindow *w = FindVehicleGroupWindow(v->type, v->owner);
1180 	if (w != nullptr) w->UnselectVehicle(v->index);
1181 }
1182