(svn r8331) -Feature: the train and aircraft build windows are now resizable in horizontal direction as well

-Codechange: merged train and aircraft build window code

6 files changed, 433 insertions, 600 deletions

diff --git a/src/build_vehicle_gui.cpp b/src/build_vehicle_gui.cpp
index a08dbc07b..c22bbd9a1 100644
--- a/src/build_vehicle_gui.cpp
+++ b/src/build_vehicle_gui.cpp
@@ -2,6 +2,7 @@
 
 #include "stdafx.h"
 #include "openttd.h"
+#include "train.h"
 #include "aircraft.h"
 #include "debug.h"
 #include "functions.h"
@@ -39,23 +40,49 @@ enum BuildVehicleWidgets {
 
 static const Widget _build_vehicle_widgets[] = {
 	{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,                STR_018B_CLOSE_WINDOW },
-	{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   239,     0,    13, STR_A005_NEW_AIRCRAFT,   STR_018C_WINDOW_TITLE_DRAG_THIS },
+	{    WWT_CAPTION,  RESIZE_RIGHT,    14,    11,   227,     0,    13, 0x0,                     STR_018C_WINDOW_TITLE_DRAG_THIS },
 	{ WWT_PUSHTXTBTN,   RESIZE_NONE,    14,     0,    80,    14,    25, STR_SORT_BY,             STR_SORT_ORDER_TIP},
-	{      WWT_PANEL,   RESIZE_NONE,    14,    81,   227,    14,    25, 0x0,                     STR_SORT_CRITERIA_TIP},
-	{    WWT_TEXTBTN,   RESIZE_NONE,    14,   228,   239,    14,    25, STR_0225,                STR_SORT_CRITERIA_TIP},
-	{     WWT_MATRIX, RESIZE_BOTTOM,    14,     0,   227,    26,   121, 0x401,                   STR_A025_AIRCRAFT_SELECTION_LIST },
-	{  WWT_SCROLLBAR, RESIZE_BOTTOM,    14,   228,   239,    26,   121, 0x0,                     STR_0190_SCROLL_BAR_SCROLLS_LIST },
-	{      WWT_PANEL,     RESIZE_TB,    14,     0,   239,   122,   213, 0x0,                     STR_NULL },
-
-	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,     0,   114,   214,   225, STR_A006_BUILD_AIRCRAFT, STR_A026_BUILD_THE_HIGHLIGHTED_AIRCRAFT },
-	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,   115,   227,   214,   225, STR_A037_RENAME,         STR_A038_RENAME_AIRCRAFT_TYPE },
-	{  WWT_RESIZEBOX,     RESIZE_TB,    14,   228,   239,   214,   225, 0x0,                     STR_RESIZE_BUTTON },
+	{      WWT_PANEL,  RESIZE_RIGHT,    14,    81,   215,    14,    25, 0x0,                     STR_SORT_CRITERIA_TIP},
+	{    WWT_TEXTBTN,     RESIZE_LR,    14,   216,   227,    14,    25, STR_0225,                STR_SORT_CRITERIA_TIP},
+	{     WWT_MATRIX,     RESIZE_RB,    14,     0,   215,    26,   121, 0x0,                     STR_NULL },
+	{  WWT_SCROLLBAR,    RESIZE_LRB,    14,   216,   227,    26,   121, 0x0,                     STR_0190_SCROLL_BAR_SCROLLS_LIST },
+	{      WWT_PANEL,    RESIZE_RTB,    14,     0,   227,   122,   213, 0x0,                     STR_NULL },
+
+	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,     0,   114,   214,   225, 0x0,                     STR_NULL },
+	{ WWT_PUSHTXTBTN,    RESIZE_RTB,    14,   115,   215,   214,   225, 0x0,                     STR_NULL },
+	{  WWT_RESIZEBOX,   RESIZE_LRTB,    14,   216,   227,   214,   225, 0x0,                     STR_RESIZE_BUTTON },
 	{   WIDGETS_END},
 };
 
+/* Setup widget strings to fit the different types of vehicles */
+static void SetupWindowStrings(const Window *w, byte type)
+{
+	switch (type) {
+		case VEH_Train:
+			w->widget[BUILD_VEHICLE_WIDGET_CAPTION].data    = STR_JUST_STRING;
+			w->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips   = STR_8843_TRAIN_VEHICLE_SELECTION;
+			w->widget[BUILD_VEHICLE_WIDGET_BUILD].data      = STR_881F_BUILD_VEHICLE;
+			w->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips  = STR_8844_BUILD_THE_HIGHLIGHTED_TRAIN;
+			w->widget[BUILD_VEHICLE_WIDGET_RENAME].data     = STR_8820_RENAME;
+			w->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_8845_RENAME_TRAIN_VEHICLE_TYPE;
+			break;
+		case VEH_Aircraft:
+			w->widget[BUILD_VEHICLE_WIDGET_CAPTION].data    = STR_A005_NEW_AIRCRAFT;
+			w->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips   = STR_A025_AIRCRAFT_SELECTION_LIST;
+			w->widget[BUILD_VEHICLE_WIDGET_BUILD].data      = STR_A006_BUILD_AIRCRAFT;
+			w->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips  = STR_A026_BUILD_THE_HIGHLIGHTED_AIRCRAFT;
+			w->widget[BUILD_VEHICLE_WIDGET_RENAME].data     = STR_A037_RENAME;
+			w->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_A038_RENAME_AIRCRAFT_TYPE;
+			break;
+	}
+}
+
 static bool _internal_sort_order; // descending/ascending
-static byte _last_sort_criteria = 0;
-static bool _last_sort_order = false;
+static byte _last_sort_criteria_train    = 0;
+static bool _last_sort_order_train       = false;
+
+static byte _last_sort_criteria_aircraft = 0;
+static bool _last_sort_order_aircraft    = false;
 
 static int CDECL EngineNumberSorter(const void *a, const void *b)
 {
@@ -120,6 +147,81 @@ static int CDECL EngineReliabilitySorter(const void *a, const void *b)
 	return _internal_sort_order ? -r : r;
 }
 
+/* Train sorting functions */
+static int CDECL TrainEngineCostSorter(const void *a, const void *b)
+{
+	int va = RailVehInfo(*(const EngineID*)a)->base_cost;
+	int vb = RailVehInfo(*(const EngineID*)b)->base_cost;
+	int r = va - vb;
+
+	return _internal_sort_order ? -r : r;
+}
+
+static int CDECL TrainEngineSpeedSorter(const void *a, const void *b)
+{
+	int va = RailVehInfo(*(const EngineID*)a)->max_speed;
+	int vb = RailVehInfo(*(const EngineID*)b)->max_speed;
+	int r = va - vb;
+
+	return _internal_sort_order ? -r : r;
+}
+
+static int CDECL TrainEnginePowerSorter(const void *a, const void *b)
+{
+	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
+	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
+
+	int va = rvi_a->power << (rvi_a->flags & RVI_MULTIHEAD ? 1 : 0);
+	int vb = rvi_b->power << (rvi_b->flags & RVI_MULTIHEAD ? 1 : 0);
+	int r = va - vb;
+
+	return _internal_sort_order ? -r : r;
+}
+
+static int CDECL TrainEngineRunningCostSorter(const void *a, const void *b)
+{
+	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
+	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
+
+	int va = rvi_a->running_cost_base * _price.running_rail[rvi_a->running_cost_class] * (rvi_a->flags & RVI_MULTIHEAD ? 2 : 1);
+	int vb = rvi_b->running_cost_base * _price.running_rail[rvi_b->running_cost_class] * (rvi_b->flags & RVI_MULTIHEAD ? 2 : 1);
+	int r = va - vb;
+
+	return _internal_sort_order ? -r : r;
+}
+
+static int CDECL TrainEnginePowerVsRunningCostSorter(const void *a, const void *b)
+{
+	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
+	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
+
+	/* Here we are using a few tricks to get the right sort.
+		* We want power/running cost, but since we usually got higher running cost than power and we store the result in an int,
+		* we will actually calculate cunning cost/power (to make it more than 1).
+		* Because of this, the return value have to be reversed as well and we return b - a instead of a - b.
+		* Another thing is that both power and running costs should be doubled for multiheaded engines.
+		* Since it would be multipling with 2 in both numerator and denumerator, it will even themselves out and we skip checking for multiheaded. */
+	int va = (rvi_a->running_cost_base * _price.running_rail[rvi_a->running_cost_class]) / max((uint16)1, rvi_a->power);
+	int vb = (rvi_b->running_cost_base * _price.running_rail[rvi_b->running_cost_class]) / max((uint16)1, rvi_b->power);
+	int r = vb - va;
+
+	return _internal_sort_order ? -r : r;
+}
+
+static int CDECL TrainEnginesThenWagonsSorter(const void *a, const void *b)
+{
+	EngineID va = *(const EngineID*)a;
+	EngineID vb = *(const EngineID*)b;
+	int val_a = ((RailVehInfo(va)->flags & RVI_WAGON) != 0) ? 1 : 0;
+	int val_b = ((RailVehInfo(vb)->flags & RVI_WAGON) != 0) ? 1 : 0;
+	int r = val_a - val_b;
+
+	/* Use EngineID to sort instead since we want consistent sorting */
+	if (r == 0) return EngineNumberSorter(a, b);
+
+	return _internal_sort_order ? -r : r;
+}
+
 /* Aircraft sorting functions */
 
 static int CDECL AircraftEngineCostSorter(const void *a, const void *b)
@@ -170,6 +272,31 @@ static int CDECL AircraftEngineCargoSorter(const void *a, const void *b)
 	return _internal_sort_order ? -r : r;
 }
 
+static EngList_SortTypeFunction * const _train_sorter[] = {
+	&EngineNumberSorter,
+	&TrainEngineCostSorter,
+	&TrainEngineSpeedSorter,
+	&TrainEnginePowerSorter,
+	&EngineIntroDateSorter,
+	&EngineNameSorter,
+	&TrainEngineRunningCostSorter,
+	&TrainEnginePowerVsRunningCostSorter,
+	&EngineReliabilitySorter,
+};
+
+static const StringID _train_sort_listing[] = {
+	STR_ENGINE_SORT_ENGINE_ID,
+	STR_ENGINE_SORT_COST,
+	STR_SORT_BY_MAX_SPEED,
+	STR_ENGINE_SORT_POWER,
+	STR_ENGINE_SORT_INTRO_DATE,
+	STR_SORT_BY_DROPDOWN_NAME,
+	STR_ENGINE_SORT_RUNNING_COST,
+	STR_ENGINE_SORT_POWER_VS_RUNNING_COST,
+	STR_SORT_BY_RELIABILITY,
+	INVALID_STRING_ID
+};
+
 static EngList_SortTypeFunction * const _aircraft_sorter[] = {
 	&EngineNumberSorter,
 	&AircraftEngineCostSorter,
@@ -194,18 +321,73 @@ static const StringID _aircraft_sort_listing[] = {
 };
 
 
-/**
-* Draw the purchase info details of an aircraft at a given location.
- * @param x,y location where to draw the info
- * @param engine_number the engine of which to draw the info of
- */
-void DrawAircraftPurchaseInfo(int x, int y, uint w, EngineID engine_number)
+/* Draw rail wagon specific details */
+static int DrawVehiclePurchaseInfo(int x, int y, EngineID engine_number, const RailVehicleInfo *rvi)
+{
+	/* Purchase cost */
+	SetDParam(0, (rvi->base_cost * _price.build_railwagon) >> 8);
+	DrawString(x, y, STR_PURCHASE_INFO_COST, 0);
+	y += 10;
+
+	/* Wagon weight - (including cargo) */
+	SetDParam(0, rvi->weight);
+	SetDParam(1, (_cargoc.weights[rvi->cargo_type] * rvi->capacity >> 4) + rvi->weight);
+	DrawString(x, y, STR_PURCHASE_INFO_WEIGHT_CWEIGHT, 0);
+	y += 10;
+
+	/* Wagon speed limit, displayed if above zero */
+	if (rvi->max_speed > 0 && _patches.wagon_speed_limits) {
+		SetDParam(0, rvi->max_speed);
+		DrawString(x,y, STR_PURCHASE_INFO_SPEED, 0);
+		y += 10;
+	}
+	return y;
+}
+
+/* Draw locomotive specific details */
+static int DrawVehiclePurchaseInfo(int x, int y, EngineID engine_number, const RailVehicleInfo *rvi, const Engine *e)
+{
+	int multihead = (rvi->flags&RVI_MULTIHEAD?1:0);
+
+	/* Purchase Cost - Engine weight */
+	SetDParam(0, rvi->base_cost * (_price.build_railvehicle >> 3) >> 5);
+	SetDParam(1, rvi->weight << multihead);
+	DrawString(x,y, STR_PURCHASE_INFO_COST_WEIGHT, 0);
+	y += 10;
+
+	/* Max speed - Engine power */
+	SetDParam(0, rvi->max_speed);
+	SetDParam(1, rvi->power << multihead);
+	DrawString(x,y, STR_PURCHASE_INFO_SPEED_POWER, 0);
+	y += 10;
+
+	/* Max tractive effort - not applicable if old acceleration or maglev */
+	if (_patches.realistic_acceleration && e->railtype != RAILTYPE_MAGLEV) {
+		SetDParam(0, ((rvi->weight << multihead) * 10 * rvi->tractive_effort) / 256);
+		DrawString(x, y, STR_PURCHASE_INFO_MAX_TE, 0);
+		y += 10;
+	}
+
+	/* Running cost */
+	SetDParam(0, (rvi->running_cost_base * _price.running_rail[rvi->running_cost_class] >> 8) << multihead);
+	DrawString(x,y, STR_PURCHASE_INFO_RUNNINGCOST, 0);
+	y += 10;
+
+	/* Powered wagons power - Powered wagons extra weight */
+	if (rvi->pow_wag_power != 0) {
+		SetDParam(0, rvi->pow_wag_power);
+		SetDParam(1, rvi->pow_wag_weight);
+		DrawString(x,y, STR_PURCHASE_INFO_PWAGPOWER_PWAGWEIGHT, 0);
+		y += 10;
+	};
+
+	return y;
+}
+
+/* Draw aircraft specific details */
+static int DrawVehiclePurchaseInfo(int x, int y, EngineID engine_number, const AircraftVehicleInfo *avi)
 {
-	const AircraftVehicleInfo *avi = AircraftVehInfo(engine_number);
-	const Engine *e = GetEngine(engine_number);
 	CargoID cargo;
-	YearMonthDay ymd;
-	ConvertDateToYMD(e->intro_date, &ymd);
 
 	/* Purchase cost - Max speed */
 	SetDParam(0, avi->base_cost * (_price.aircraft_base>>3)>>5);
@@ -234,20 +416,76 @@ void DrawAircraftPurchaseInfo(int x, int y, uint w, EngineID engine_number)
 	DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, 0);
 	y += 10;
 
-	/* Design date - Life length */
-	SetDParam(0, ymd.year);
-	SetDParam(1, e->lifelength);
-	DrawString(x, y, STR_PURCHASE_INFO_DESIGNED_LIFE, 0);
-	y += 10;
+	return y;
+}
 
-	/* Reliability */
-	SetDParam(0, e->reliability * 100 >> 16);
-	DrawString(x, y, STR_PURCHASE_INFO_RELIABILITY, 0);
-	y += 10;
+/**
+ * Draw the purchase info details of a vehicle at a given location.
+ * @param x,y location where to draw the info
+ * @param w how wide are the text allowed to be (size of widget/window to Draw in)
+ * @param engine_number the engine of which to draw the info of
+ */
+void DrawVehiclePurchaseInfo(int x, int y, uint w, EngineID engine_number)
+{
+	const Engine *e = GetEngine(engine_number);
+	YearMonthDay ymd;
+	ConvertDateToYMD(e->intro_date, &ymd);
+
+	switch (e->type) {
+		case VEH_Train: {
+			const RailVehicleInfo *rvi = RailVehInfo(engine_number);
+
+			if (rvi->flags & RVI_WAGON) {
+				y = DrawVehiclePurchaseInfo(x, y, engine_number, rvi);
+			} else {
+				y = DrawVehiclePurchaseInfo(x, y, engine_number, rvi, e);
+			}
+
+			/* Cargo type + capacity, or N/A */
+			if (rvi->capacity == 0) {
+				SetDParam(0, CT_INVALID);
+				SetDParam(2, STR_EMPTY);
+			} else {
+				int multihead = (rvi->flags & RVI_MULTIHEAD ? 1 : 0);
+				SetDParam(0, rvi->cargo_type);
+				SetDParam(1, (rvi->capacity * (CountArticulatedParts(engine_number) + 1)) << multihead);
+				SetDParam(2, STR_9842_REFITTABLE);
+			}
+			DrawString(x,y, STR_PURCHASE_INFO_CAPACITY, 0);
+			y += 10;
+		}
+			break;
+		case VEH_Aircraft:
+			y = DrawVehiclePurchaseInfo(x, y, engine_number, AircraftVehInfo(engine_number));
+			break;
+		default: NOT_REACHED();
+	}
+
+	/* Draw details, that applies to all types except rail wagons */
+	if (e->type != VEH_Train || (RailVehInfo(engine_number)->flags & RVI_WAGON == 0)) {
+		/* Design date - Life length */
+		SetDParam(0, ymd.year);
+		SetDParam(1, e->lifelength);
+		DrawString(x, y, STR_PURCHASE_INFO_DESIGNED_LIFE, 0);
+		y += 10;
+
+		/* Reliability */
+		SetDParam(0, e->reliability * 100 >> 16);
+		DrawString(x, y, STR_PURCHASE_INFO_RELIABILITY, 0);
+		y += 10;
+	}
 
 	/* Additional text from NewGRF */
 	y += ShowAdditionalText(x, y, w, engine_number);
-	y += ShowRefitOptionsList(x, y, w, engine_number);
+	switch (e->type) {
+		case VEH_Train: {
+			const RailVehicleInfo *rvi = RailVehInfo(engine_number);
+			if (rvi->capacity > 0) y += ShowRefitOptionsList(x, y, w, engine_number);
+		} break;
+		case VEH_Aircraft:
+			y += ShowRefitOptionsList(x, y, w, engine_number);
+			break;
+	}
 }
 
 void DrawAircraftImage(const Vehicle *v, int x, int y, VehicleID selection)
@@ -277,6 +515,54 @@ void CcBuildAircraft(bool success, TileIndex tile, uint32 p1, uint32 p2)
 	}
 }
 
+/* Figure out what train EngineIDs to put in the list */
+static void GenerateBuildTrainList(Window *w)
+{
+	EngineID eid, sel_id;
+	int num_engines = 0;
+	int num_wagons  = 0;
+	buildvehicle_d *bv = &WP(w, buildvehicle_d);
+
+	bv->filter.railtype = (w->window_number == 0) ? RAILTYPE_END : GetRailType(w->window_number);
+
+	EngList_RemoveAll(&bv->eng_list);
+
+	/* Make list of all available train engines and wagons.
+		* Also check to see if the previously selected engine is still available,
+		* and if not, reset selection to INVALID_ENGINE. This could be the case
+	* when engines become obsolete and are removed */
+	for (sel_id = INVALID_ENGINE, eid = 0; eid < NUM_TRAIN_ENGINES; eid++) {
+		const Engine *e = GetEngine(eid);
+		const RailVehicleInfo *rvi = RailVehInfo(eid);
+
+		if (bv->filter.railtype != RAILTYPE_END && !HasPowerOnRail(e->railtype, bv->filter.railtype)) continue;
+		if (!IsEngineBuildable(eid, VEH_Train, _local_player)) continue;
+
+		EngList_Add(&bv->eng_list, eid);
+		if ((rvi->flags & RVI_WAGON) == 0) {
+			num_engines++;
+		} else {
+			num_wagons++;
+		}
+
+		if (eid == bv->sel_engine) sel_id = eid;
+	}
+
+	bv->sel_engine = sel_id;
+
+	// make engines first, and then wagons, sorted by ListPositionOfEngine()
+	_internal_sort_order = false;
+	EngList_Sort(&bv->eng_list, TrainEnginesThenWagonsSorter);
+
+	// and then sort engines
+	_internal_sort_order = bv->descending_sort_order;
+	EngList_SortPartial(&bv->eng_list, _train_sorter[bv->sort_criteria], 0, num_engines);
+
+	// and finally sort wagons
+	EngList_SortPartial(&bv->eng_list, _train_sorter[bv->sort_criteria], num_engines, num_wagons);
+}
+
+/* Figure out what aircraft EngineIDs to put in the list */
 static void GenerateBuildAircraftList(Window *w)
 {
 	EngineID eid, sel_id;
@@ -314,82 +600,122 @@ static void GenerateBuildAircraftList(Window *w)
 	bv->sel_engine = sel_id;
 }
 
+/* Generate the list of vehicles */
 static void GenerateBuildList(Window *w)
 {
 	buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
 	switch (bv->vehicle_type) {
+		case VEH_Train:
+			GenerateBuildTrainList(w);
+			break;
 		case VEH_Aircraft:
 			GenerateBuildAircraftList(w);
 			_internal_sort_order = bv->descending_sort_order;
 			EngList_Sort(&bv->eng_list, _aircraft_sorter[bv->sort_criteria]);
 			break;
-
-		default: NOT_REACHED();
 	}
 }
 
-static void DrawBuildAircraftWindow(Window *w)
+static void DrawBuildVehicleWindow(Window *w)
 {
 	const buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
 	SetWindowWidgetDisabledState(w, BUILD_VEHICLE_WIDGET_BUILD, w->window_number == 0);
 
 	SetVScrollCount(w, EngList_Count(&bv->eng_list));
+	SetDParam(0, bv->filter.railtype + STR_881C_NEW_RAIL_VEHICLES); // This should only affect rail vehicles
 	DrawWindowWidgets(w);
 
 	{
 		int x = 2;
 		int y = 27;
 		EngineID selected_id = bv->sel_engine;
-		EngineID eid = w->vscroll.pos;
+		uint16 position = w->vscroll.pos;
 		uint16 max = min(w->vscroll.pos + w->vscroll.cap, EngList_Count(&bv->eng_list));
 
-		for (; eid < max; eid++) {
-			const EngineID engine = bv->eng_list[eid];
-
-			DrawString(x + 62, y + 7, GetCustomEngineName(engine), engine == selected_id ? 0xC : 0x10);
-			DrawAircraftEngine(x + 29, y + 10, engine, GetEnginePalette(engine, _local_player));
-			y += 24;
+		switch (bv->vehicle_type) {
+			case VEH_Train:
+				for (; position < max; position++, y += 14) {
+					const EngineID engine = bv->eng_list[position];
+
+					DrawString(x + 59, y + 2, GetCustomEngineName(engine), engine == selected_id ? 0xC : 0x10);
+					DrawTrainEngine(x + 29, y + 6, engine, GetEnginePalette(engine, _local_player));
+				}
+				break;
+			case VEH_Aircraft:
+				for (; position < max; position++, y += 24) {
+					const EngineID engine = bv->eng_list[position];
+
+					DrawString(x + 62, y + 7, GetCustomEngineName(engine), engine == selected_id ? 0xC : 0x10);
+					DrawAircraftEngine(x + 29, y + 10, engine, GetEnginePalette(engine, _local_player));
+				}
+				break;
 		}
 
 		if (selected_id != INVALID_ENGINE) {
 			const Widget *wi = &w->widget[BUILD_VEHICLE_WIDGET_PANEL];
-			DrawAircraftPurchaseInfo(x, wi->top + 1, wi->right - wi->left - 2, selected_id);
+			DrawVehiclePurchaseInfo(x, wi->top + 1, wi->right - wi->left - 2, selected_id);
+		}
+	}
+	{
+		StringID str = STR_NULL;
+		switch (bv->vehicle_type) {
+			case VEH_Train:    str = _train_sort_listing[bv->sort_criteria];    break;
+			case VEH_Aircraft: str = _aircraft_sort_listing[bv->sort_criteria]; break;
 		}
+
+		DrawString(85, 15, str, 0x10);
+		DoDrawString(bv->descending_sort_order ? DOWNARROW : UPARROW, 69, 15, 0x10);
 	}
-	DrawString(85, 15, _aircraft_sort_listing[bv->sort_criteria], 0x10);
-	DoDrawString(bv->descending_sort_order ? DOWNARROW : UPARROW, 69, 15, 0x10);
 }
 
-static void BuildAircraftClickEvent(Window *w, WindowEvent *e)
+static void BuildVehicleClickEvent(Window *w, WindowEvent *e)
 {
 	buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
 	switch (e->we.click.widget) {
 		case BUILD_VEHICLE_WIDGET_SORT_ASSENDING_DESCENDING:
 			bv->descending_sort_order ^= true;
-			_last_sort_order = bv->descending_sort_order;
+			switch (bv->vehicle_type) {
+				case VEH_Train:    _last_sort_order_train    = bv->descending_sort_order; break;
+				case VEH_Aircraft: _last_sort_order_aircraft = bv->descending_sort_order; break;
+			}
 			GenerateBuildList(w);
 			SetWindowDirty(w);
 			break;
 
 		case BUILD_VEHICLE_WIDGET_LIST: {
-			uint i = (e->we.click.pt.y - 26) / 24 + w->vscroll.pos;
+			uint i = (e->we.click.pt.y - 26) / GetVehicleListHeight(bv->vehicle_type) + w->vscroll.pos;
 			uint num_items = EngList_Count(&bv->eng_list);
 			bv->sel_engine = (i < num_items) ? bv->eng_list[i] : INVALID_ENGINE;
 			SetWindowDirty(w);
 			break;
 		}
 
-		case BUILD_VEHICLE_WIDGET_SORT_TEXT: case BUILD_VEHICLE_WIDGET_SORT_DROPDOWN:/* Select sorting criteria dropdown menu */
-			ShowDropDownMenu(w, _aircraft_sort_listing, bv->sort_criteria, BUILD_VEHICLE_WIDGET_SORT_DROPDOWN, 0, 0);
+		case BUILD_VEHICLE_WIDGET_SORT_TEXT: case BUILD_VEHICLE_WIDGET_SORT_DROPDOWN: // Select sorting criteria dropdown menu
+			switch (bv->vehicle_type) {
+				case VEH_Train:
+					ShowDropDownMenu(w, _train_sort_listing, bv->sort_criteria, BUILD_VEHICLE_WIDGET_SORT_DROPDOWN, 0, 0);
+					break;
+				case VEH_Aircraft:
+					ShowDropDownMenu(w, _aircraft_sort_listing, bv->sort_criteria, BUILD_VEHICLE_WIDGET_SORT_DROPDOWN, 0, 0);
+					break;
+			}
 			return;
 
 		case BUILD_VEHICLE_WIDGET_BUILD: {
 			EngineID sel_eng = bv->sel_engine;
 			if (sel_eng != INVALID_ENGINE) {
-				DoCommandP(w->window_number, sel_eng, 0, CcBuildAircraft, CMD_BUILD_AIRCRAFT | CMD_MSG(STR_A008_CAN_T_BUILD_AIRCRAFT));
+				switch (bv->vehicle_type) {
+					case VEH_Train:
+						DoCommandP(w->window_number, sel_eng, 0, (RailVehInfo(sel_eng)->flags & RVI_WAGON) ? CcBuildWagon : CcBuildLoco,
+								   CMD_BUILD_RAIL_VEHICLE | CMD_MSG(STR_882B_CAN_T_BUILD_RAILROAD_VEHICLE));
+						break;
+					case VEH_Aircraft:
+						DoCommandP(w->window_number, sel_eng, 0, CcBuildAircraft, CMD_BUILD_AIRCRAFT | CMD_MSG(STR_A008_CAN_T_BUILD_AIRCRAFT));
+						break;
+				}
 			}
 			break;
 		}
@@ -397,15 +723,21 @@ static void BuildAircraftClickEvent(Window *w, WindowEvent *e)
 		case BUILD_VEHICLE_WIDGET_RENAME: {
 			EngineID sel_eng = bv->sel_engine;
 			if (sel_eng != INVALID_ENGINE) {
+				StringID str = STR_NULL;
+
 				bv->rename_engine = sel_eng;
-				ShowQueryString(GetCustomEngineName(sel_eng), STR_A039_RENAME_AIRCRAFT_TYPE, 31, 160, w, CS_ALPHANUMERAL);
+				switch (bv->vehicle_type) {
+					case VEH_Train:    str = STR_886A_RENAME_TRAIN_VEHICLE_TYPE; break;
+					case VEH_Aircraft: str = STR_A039_RENAME_AIRCRAFT_TYPE;      break;
+				}
+				ShowQueryString(GetCustomEngineName(sel_eng), str, 31, 160, w, CS_ALPHANUMERAL);
 			}
 			break;
 		}
 	}
 }
 
-static void NewAircraftWndProc(Window *w, WindowEvent *e)
+static void NewVehicleWndProc(Window *w, WindowEvent *e)
 {
 	buildvehicle_d *bv = &WP(w, buildvehicle_d);
 
@@ -419,42 +751,53 @@ static void NewAircraftWndProc(Window *w, WindowEvent *e)
 			break;
 
 		case WE_PAINT:
-			DrawBuildAircraftWindow(w);
+			DrawBuildVehicleWindow(w);
 			break;
 
 		case WE_CLICK:
-			BuildAircraftClickEvent(w, e);
+			BuildVehicleClickEvent(w, e);
 			break;
 
 		case WE_ON_EDIT_TEXT: {
 			if (e->we.edittext.str[0] != '\0') {
+				StringID str = STR_NULL;
 				_cmd_text = e->we.edittext.str;
-				DoCommandP(0, bv->rename_engine, 0, NULL, CMD_RENAME_ENGINE | CMD_MSG(STR_A03A_CAN_T_RENAME_AIRCRAFT_TYPE));
+				switch (bv->vehicle_type) {
+					case VEH_Train:    str = STR_886B_CAN_T_RENAME_TRAIN_VEHICLE; break;
+					case VEH_Aircraft: str = STR_A03A_CAN_T_RENAME_AIRCRAFT_TYPE; break;
+				}
+				DoCommandP(0, bv->rename_engine, 0, NULL, CMD_RENAME_ENGINE | CMD_MSG(str));
 			}
 			break;
 		}
 
 		case WE_DROPDOWN_SELECT: /* we have selected a dropdown item in the list */
 			if (bv->sort_criteria != e->we.dropdown.index) {
-				bv->sort_criteria = _last_sort_criteria = e->we.dropdown.index;
+				bv->sort_criteria = e->we.dropdown.index;
+				switch (bv->vehicle_type) {
+					case VEH_Train:    _last_sort_criteria_train    = bv->sort_criteria; break;
+					case VEH_Aircraft: _last_sort_criteria_aircraft = bv->sort_criteria; break;
+				}
 				GenerateBuildList(w);
 			}
 			SetWindowDirty(w);
 			break;
 
 		case WE_RESIZE:
-			w->vscroll.cap += e->we.sizing.diff.y / 24;
+			if (e->we.sizing.diff.y == 0) break;
+
+			w->vscroll.cap += e->we.sizing.diff.y / GetVehicleListHeight(bv->vehicle_type);
 			w->widget[BUILD_VEHICLE_WIDGET_LIST].data = (w->vscroll.cap << 8) + 1;
 			break;
 	}
 }
 
 static const WindowDesc _build_vehicle_desc = {
-	WDP_AUTO, WDP_AUTO, 240, 226,
+	WDP_AUTO, WDP_AUTO, 228, 226,
 	WC_BUILD_VEHICLE,0,
 	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,
 	_build_vehicle_widgets,
-	NewAircraftWndProc
+	NewVehicleWndProc
 };
 
 void ShowBuildVehicleWindow(TileIndex tile, byte type)
@@ -462,33 +805,47 @@ void ShowBuildVehicleWindow(TileIndex tile, byte type)
 	buildvehicle_d *bv;
 	Window *w;
 
+	assert(IsPlayerBuildableVehicleType(type));
+
 	DeleteWindowById(WC_BUILD_VEHICLE, tile);
+
 	w = AllocateWindowDescFront(&_build_vehicle_desc, tile);
+
 	if (w == NULL) return;
 
 	w->caption_color = (tile != 0) ? GetTileOwner(tile) : _local_player;
 	w->resize.step_height = GetVehicleListHeight(type);
-	w->vscroll.cap = 4;
+	w->vscroll.cap = w->resize.step_height == 24 ? 4 : 8;
 	w->widget[BUILD_VEHICLE_WIDGET_LIST].data = (w->vscroll.cap << 8) + 1;
 
 	bv = &WP(w, buildvehicle_d);
 	EngList_Create(&bv->eng_list);
 	bv->sel_engine            = INVALID_ENGINE;
-	bv->sort_criteria         = _last_sort_criteria;
-	bv->descending_sort_order = _last_sort_order;
 
 	bv->vehicle_type = type;
 
 	switch (type) {
+		case VEH_Train:
+			WP(w,buildvehicle_d).filter.railtype = (tile == 0) ? RAILTYPE_END : GetRailType(tile);
+			ResizeWindow(w, 0, 16);
+			bv->sort_criteria         = _last_sort_criteria_train;
+			bv->descending_sort_order = _last_sort_order_train;
+			break;
 		case VEH_Aircraft: {
 			AcceptPlanes acc_planes = (tile == 0) ? ALL : GetAirport(GetStationByTile(tile)->airport_type)->acc_planes;
 			bv->filter.acc_planes = acc_planes;
+			ResizeWindow(w, 12, 0);
+			bv->sort_criteria         = _last_sort_criteria_aircraft;
+			bv->descending_sort_order = _last_sort_order_aircraft;
 			break;
 		}
-		default: NOT_REACHED();
 	}
+	SetupWindowStrings(w, type);
+
+	w->resize.width  = w->width;
+	w->resize.height = w->height;
 
 	GenerateBuildList(w);
-	/* Select the first plane in the list as default when opening the window */
+	/* Select the first engine in the list as default when opening the window */
 	if (EngList_Count(&bv->eng_list) > 0) bv->sel_engine = bv->eng_list[0];
 }
diff --git a/src/depot_gui.cpp b/src/depot_gui.cpp
index 1bcc9babd..1e21af514 100644
--- a/src/depot_gui.cpp
+++ b/src/depot_gui.cpp
@@ -736,9 +736,9 @@ static void DepotWndProc(Window *w, WindowEvent *e)
 				case DEPOT_WIDGET_BUILD: // Build vehicle
 					ResetObjectToPlace();
 					switch (WP(w, depot_d).type) {
-						case VEH_Train:    ShowBuildTrainWindow(w->window_number);    break;
 						case VEH_Road:     ShowBuildRoadVehWindow(w->window_number);  break;
 						case VEH_Ship:     ShowBuildShipWindow(w->window_number);     break;
+						case VEH_Train:
 						case VEH_Aircraft:
 							ShowBuildVehicleWindow(w->window_number, WP(w, depot_d).type);
 							break;
diff --git a/src/train.h b/src/train.h
index aead2f2ca..ed7e2a962 100644
--- a/src/train.h
+++ b/src/train.h
@@ -220,6 +220,8 @@ void ConnectMultiheadedTrains(void);
 uint CountArticulatedParts(EngineID engine_type);
 
 int CheckTrainInDepot(const Vehicle *v, bool needs_to_be_stopped);
+void CcBuildLoco(bool success, TileIndex tile, uint32 p1, uint32 p2);
+void CcBuildWagon(bool success, TileIndex tile, uint32 p1, uint32 p2);
 void CcCloneTrain(bool success, TileIndex tile, uint32 p1, uint32 p2);
 
 byte FreightWagonMult(CargoID cargo);
diff --git a/src/train_gui.cpp b/src/train_gui.cpp
index 606d4981c..0e7a4dbfa 100644
--- a/src/train_gui.cpp
+++ b/src/train_gui.cpp
@@ -4,326 +4,17 @@
 #include "openttd.h"
 #include "debug.h"
 #include "functions.h"
-#include "rail_map.h"
 #include "table/sprites.h"
 #include "table/strings.h"
-#include "map.h"
-#include "engine.h"
 #include "window.h"
 #include "gui.h"
-#include "gfx.h"
 #include "vehicle.h"
 #include "viewport.h"
-#include "station.h"
 #include "command.h"
-#include "player.h"
 #include "vehicle_gui.h"
 #include "depot.h"
 #include "train.h"
 #include "newgrf_engine.h"
-#include "date.h"
-#include "strings.h"
-
-enum BuildTrainWidgets {
-	BUILD_TRAIN_WIDGET_CLOSEBOX = 0,
-	BUILD_TRAIN_WIDGET_CAPTION,
-	BUILD_TRAIN_WIDGET_SORT_ASCENDING_DESCENDING,
-	BUILD_TRAIN_WIDGET_SORT_TEXT,
-	BUILD_TRAIN_WIDGET_SORT_DROPDOWN,
-	BUILD_TRAIN_WIDGET_LIST,
-	BUILD_TRAIN_WIDGET_SCROLLBAR,
-	BUILD_TRAIN_WIDGET_PANEL,
-	BUILD_TRAIN_WIDGET_BUILD,
-	BUILD_TRAIN_WIDGET_RENAME,
-	BUILD_TRAIN_WIDGET_RESIZE,
-};
-
-static const Widget _new_rail_vehicle_widgets[] = {
-	{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,               STR_018B_CLOSE_WINDOW},
-	{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   227,     0,    13, STR_JUST_STRING,        STR_018C_WINDOW_TITLE_DRAG_THIS},
-	{ WWT_PUSHTXTBTN,   RESIZE_NONE,    14,     0,    80,    14,    25, STR_SORT_BY,            STR_SORT_ORDER_TIP},
-	{      WWT_PANEL,   RESIZE_NONE,    14,    81,   215,    14,    25, 0x0,                    STR_SORT_CRITERIA_TIP},
-	{    WWT_TEXTBTN,   RESIZE_NONE,    14,   216,   227,    14,    25, STR_0225,               STR_SORT_CRITERIA_TIP},
-	{     WWT_MATRIX, RESIZE_BOTTOM,    14,     0,   215,    26,   137, 0x801,                  STR_8843_TRAIN_VEHICLE_SELECTION},
-	{  WWT_SCROLLBAR, RESIZE_BOTTOM,    14,   216,   227,    26,   137, 0x0,                    STR_0190_SCROLL_BAR_SCROLLS_LIST},
-	{      WWT_PANEL,     RESIZE_TB,    14,     0,   227,   138,   239, 0x0,                    STR_NULL},
-	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,     0,   107,   240,   251, STR_881F_BUILD_VEHICLE, STR_8844_BUILD_THE_HIGHLIGHTED_TRAIN},
-	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,   108,   215,   240,   251, STR_8820_RENAME,        STR_8845_RENAME_TRAIN_VEHICLE_TYPE},
-	{  WWT_RESIZEBOX,     RESIZE_TB,    14,   216,   227,   240,   251, 0x0,                    STR_RESIZE_BUTTON},
-	{   WIDGETS_END},
-};
-
-static bool _internal_sort_order; // false = ascending, true = descending
-static byte _last_sort_criteria = 0;
-static bool _last_sort_order = false;
-
-static int CDECL TrainEngineNumberSorter(const void *a, const void *b)
-{
-	const EngineID va = *(const EngineID*)a;
-	const EngineID vb = *(const EngineID*)b;
-	int r = ListPositionOfEngine(va) - ListPositionOfEngine(vb);
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEnginesThenWagonsSorter(const void *a, const void *b)
-{
-	EngineID va = *(const EngineID*)a;
-	EngineID vb = *(const EngineID*)b;
-	int val_a = ((RailVehInfo(va)->flags & RVI_WAGON) != 0) ? 1 : 0;
-	int val_b = ((RailVehInfo(vb)->flags & RVI_WAGON) != 0) ? 1 : 0;
-	int r = val_a - val_b;
-
-	/* Use EngineID to sort instead since we want consistent sorting */
-	if (r == 0) return TrainEngineNumberSorter(a, b);
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEngineCostSorter(const void *a, const void *b)
-{
-	int va = RailVehInfo(*(const EngineID*)a)->base_cost;
-	int vb = RailVehInfo(*(const EngineID*)b)->base_cost;
-	int r = va - vb;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEngineSpeedSorter(const void *a, const void *b)
-{
-	int va = RailVehInfo(*(const EngineID*)a)->max_speed;
-	int vb = RailVehInfo(*(const EngineID*)b)->max_speed;
-	int r = va - vb;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEnginePowerSorter(const void *a, const void *b)
-{
-	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
-	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
-
-	int va = rvi_a->power << (rvi_a->flags & RVI_MULTIHEAD ? 1 : 0);
-	int vb = rvi_b->power << (rvi_b->flags & RVI_MULTIHEAD ? 1 : 0);
-	int r = va - vb;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEngineIntroDateSorter(const void *a, const void *b)
-{
-	int va = GetEngine(*(const EngineID*)a)->intro_date;
-	int vb = GetEngine(*(const EngineID*)b)->intro_date;
-	int r = va - vb;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static EngineID _last_engine; // cached vehicle to hopefully speed up name-sorting
-
-static char _bufcache[64]; // used together with _last_vehicle to hopefully speed up stringsorting
-static int CDECL TrainEngineNameSorter(const void *a, const void *b)
-{
-	const EngineID va = *(const EngineID*)a;
-	const EngineID vb = *(const EngineID*)b;
-	char buf1[64];
-	int r;
-
-	GetString(buf1, GetCustomEngineName(va), lastof(buf1));
-
-	if (vb != _last_engine) {
-		_last_engine = vb;
-		_bufcache[0] = '\0';
-
-		GetString(_bufcache, GetCustomEngineName(vb), lastof(_bufcache));
-	}
-
-	r =  strcasecmp(buf1, _bufcache); // sort by name
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEngineRunningCostSorter(const void *a, const void *b)
-{
-	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
-	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
-
-	int va = rvi_a->running_cost_base * _price.running_rail[rvi_a->running_cost_class] * (rvi_a->flags & RVI_MULTIHEAD ? 2 : 1);
-	int vb = rvi_b->running_cost_base * _price.running_rail[rvi_b->running_cost_class] * (rvi_b->flags & RVI_MULTIHEAD ? 2 : 1);
-	int r = va - vb;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEnginePowerVsRunningCostSorter(const void *a, const void *b)
-{
-	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);
-	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);
-
-	/* Here we are using a few tricks to get the right sort.
-	 * We want power/running cost, but since we usually got higher running cost than power and we store the result in an int,
-	 * we will actually calculate cunning cost/power (to make it more than 1).
-	 * Because of this, the return value have to be reversed as well and we return b - a instead of a - b.
-	 * Another thing is that both power and running costs should be doubled for multiheaded engines.
-	 * Since it would be multipling with 2 in both numerator and denumerator, it will even themselves out and we skip checking for multiheaded. */
-	int va = (rvi_a->running_cost_base * _price.running_rail[rvi_a->running_cost_class]) / max((uint16)1, rvi_a->power);
-	int vb = (rvi_b->running_cost_base * _price.running_rail[rvi_b->running_cost_class]) / max((uint16)1, rvi_b->power);
-	int r = vb - va;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static int CDECL TrainEngineReliabilitySorter(const void *a, const void *b)
-{
-	int va = GetEngine(*(const EngineID*)a)->reliability;
-	int vb = GetEngine(*(const EngineID*)b)->reliability;
-	int r = va - vb;
-
-	return _internal_sort_order ? -r : r;
-}
-
-static EngList_SortTypeFunction * const _engine_sorter[] = {
-	&TrainEngineNumberSorter,
-	&TrainEngineCostSorter,
-	&TrainEngineSpeedSorter,
-	&TrainEnginePowerSorter,
-	&TrainEngineIntroDateSorter,
-	&TrainEngineNameSorter,
-	&TrainEngineRunningCostSorter,
-	&TrainEnginePowerVsRunningCostSorter,
-	&TrainEngineReliabilitySorter,
-};
-
-static const StringID _engine_sort_listing[] = {
-	STR_ENGINE_SORT_ENGINE_ID,
-	STR_ENGINE_SORT_COST,
-	STR_SORT_BY_MAX_SPEED,
-	STR_ENGINE_SORT_POWER,
-	STR_ENGINE_SORT_INTRO_DATE,
-	STR_SORT_BY_DROPDOWN_NAME,
-	STR_ENGINE_SORT_RUNNING_COST,
-	STR_ENGINE_SORT_POWER_VS_RUNNING_COST,
-	STR_SORT_BY_RELIABILITY,
-	INVALID_STRING_ID
-};
-
-/**
- * Draw the purchase info details of train engine at a given location.
- * @param x,y location where to draw the info
- * @param engine_number the engine of which to draw the info of
- */
-void DrawTrainEnginePurchaseInfo(int x, int y, uint w, EngineID engine_number)
-{
-	const RailVehicleInfo *rvi = RailVehInfo(engine_number);
-	const Engine *e = GetEngine(engine_number);
-	int multihead = (rvi->flags&RVI_MULTIHEAD?1:0);
-	YearMonthDay ymd;
-	ConvertDateToYMD(e->intro_date, &ymd);
-
-	/* Purchase Cost - Engine weight */
-	SetDParam(0, rvi->base_cost * (_price.build_railvehicle >> 3) >> 5);
-	SetDParam(1, rvi->weight << multihead);
-	DrawString(x,y, STR_PURCHASE_INFO_COST_WEIGHT, 0);
-	y += 10;
-
-	/* Max speed - Engine power */
-	SetDParam(0, rvi->max_speed);
-	SetDParam(1, rvi->power << multihead);
-	DrawString(x,y, STR_PURCHASE_INFO_SPEED_POWER, 0);
-	y += 10;
-
-	/* Max tractive effort - not applicable if old acceleration or maglev */
-	if (_patches.realistic_acceleration && e->railtype != RAILTYPE_MAGLEV) {
-		SetDParam(0, ((rvi->weight << multihead) * 10 * rvi->tractive_effort) / 256);
-		DrawString(x, y, STR_PURCHASE_INFO_MAX_TE, 0);
-		y += 10;
-	}
-
-	/* Running cost */
-	SetDParam(0, (rvi->running_cost_base * _price.running_rail[rvi->running_cost_class] >> 8) << multihead);
-	DrawString(x,y, STR_PURCHASE_INFO_RUNNINGCOST, 0);
-	y += 10;
-
-	/* Powered wagons power - Powered wagons extra weight */
-	if (rvi->pow_wag_power != 0) {
-		SetDParam(0, rvi->pow_wag_power);
-		SetDParam(1, rvi->pow_wag_weight);
-		DrawString(x,y, STR_PURCHASE_INFO_PWAGPOWER_PWAGWEIGHT, 0);
-		y += 10;
-	};
-
-	/* Cargo type + capacity, or N/A */
-	if (rvi->capacity == 0) {
-		SetDParam(0, CT_INVALID);
-		SetDParam(2, STR_EMPTY);
-	} else {
-		SetDParam(0, rvi->cargo_type);
-		SetDParam(1, (rvi->capacity * (CountArticulatedParts(engine_number) + 1)) << multihead);
-		SetDParam(2, STR_9842_REFITTABLE);
-	}
-	DrawString(x,y, STR_PURCHASE_INFO_CAPACITY, 0);
-	y += 10;
-
-	/* Design date - Life length */
-	SetDParam(0, ymd.year);
-	SetDParam(1, e->lifelength);
-	DrawString(x,y, STR_PURCHASE_INFO_DESIGNED_LIFE, 0);
-	y += 10;
-
-	/* Reliability */
-	SetDParam(0, e->reliability * 100 >> 16);
-	DrawString(x,y, STR_PURCHASE_INFO_RELIABILITY, 0);
-	y += 10;
-
-	/* Additional text from NewGRF */
-	y += ShowAdditionalText(x, y, w, engine_number);
-	if (rvi->capacity > 0) y += ShowRefitOptionsList(x, y, w, engine_number);
-}
-
-/**
- * Draw the purchase info details of a train wagon at a given location.
- * @param x,y location where to draw the info
- * @param engine_number the engine of which to draw the info of
- */
-void DrawTrainWagonPurchaseInfo(int x, int y, uint w, EngineID engine_number)
-{
-	const RailVehicleInfo *rvi = RailVehInfo(engine_number);
-	bool refittable = (EngInfo(engine_number)->refit_mask != 0);
-
-	/* Purchase cost */
-	SetDParam(0, (rvi->base_cost * _price.build_railwagon) >> 8);
-	DrawString(x, y, STR_PURCHASE_INFO_COST, 0);
-	y += 10;
-
-	/* Wagon weight - (including cargo) */
-	SetDParam(0, rvi->weight);
-	SetDParam(1, (_cargoc.weights[rvi->cargo_type] * rvi->capacity >> 4) + rvi->weight);
-	DrawString(x, y, STR_PURCHASE_INFO_WEIGHT_CWEIGHT, 0);
-	y += 10;
-
-	/* Cargo type + capacity, or N/A */
-	if (rvi->capacity == 0) {
-		SetDParam(0, CT_INVALID);
-		SetDParam(2, STR_EMPTY);
-	} else {
-		SetDParam(0, rvi->cargo_type);
-		SetDParam(1, rvi->capacity * (CountArticulatedParts(engine_number) + 1));
-		SetDParam(2, refittable ? STR_9842_REFITTABLE : STR_EMPTY);
-	}
-	DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, 0);
-	y += 10;
-
-	/* Wagon speed limit, displayed if above zero */
-	if (rvi->max_speed > 0 && _patches.wagon_speed_limits) {
-		SetDParam(0, rvi->max_speed);
-		DrawString(x,y, STR_PURCHASE_INFO_SPEED, 0);
-		y += 10;
-	}
-
-	/* Additional text from NewGRF */
-	y += ShowAdditionalText(x, y, w, engine_number);
-	y += ShowRefitOptionsList(x, y, w, engine_number);
-}
 
 void CcBuildWagon(bool success, TileIndex tile, uint32 p1, uint32 p2)
 {
@@ -370,215 +61,6 @@ void CcCloneTrain(bool success, TileIndex tile, uint32 p1, uint32 p2)
 	if (success) ShowTrainViewWindow(GetVehicle(_new_vehicle_id));
 }
 
-static void engine_drawing_loop(const EngineList *engines, int x, int *y, EngineID sel, EngineID position, int16 show_max)
-{
-	int count = min(EngList_Count(engines), show_max);
-	for (; position < count; *y += 14, position++) {
-		EngineID id = (*engines)[position];
-		DrawString(x + 59, *y + 2, GetCustomEngineName(id), sel == id ? 0xC : 0x10);
-		DrawTrainEngine(x + 29, *y + 6, id, GetEnginePalette(id, _local_player));
-	}
-}
-
-static void GenerateBuildList(Window *w)
-{
-	EngineID eid, sel_id;
-	int num_engines = 0;
-	int num_wagons  = 0;
-	buildvehicle_d *bv = &WP(w, buildvehicle_d);
-
-	bv->filter.railtype = (w->window_number == 0) ? RAILTYPE_END : GetRailType(w->window_number);
-
-	EngList_RemoveAll(&bv->eng_list);
-
-	/* Make list of all available train engines and wagons.
-	 * Also check to see if the previously selected engine is still available,
-	 * and if not, reset selection to INVALID_ENGINE. This could be the case
-	 * when engines become obsolete and are removed */
-	for (sel_id = INVALID_ENGINE, eid = 0; eid < NUM_TRAIN_ENGINES; eid++) {
-		const Engine *e = GetEngine(eid);
-		const RailVehicleInfo *rvi = RailVehInfo(eid);
-
-		if (bv->filter.railtype != RAILTYPE_END && !HasPowerOnRail(e->railtype, bv->filter.railtype)) continue;
-		if (!IsEngineBuildable(eid, VEH_Train, _local_player)) continue;
-
-		EngList_Add(&bv->eng_list, eid);
-		if ((rvi->flags & RVI_WAGON) == 0) {
-			num_engines++;
-		} else {
-			num_wagons++;
-		}
-
-		if (eid == bv->sel_engine) sel_id = eid;
-	}
-
-	bv->sel_engine = sel_id;
-
-	// make engines first, and then wagons, sorted by ListPositionOfEngine()
-	_internal_sort_order = false;
-	EngList_Sort(&bv->eng_list, TrainEnginesThenWagonsSorter);
-
-	// and then sort engines
-	_internal_sort_order = bv->descending_sort_order;
-	EngList_SortPartial(&bv->eng_list, _engine_sorter[bv->sort_criteria], 0, num_engines);
-
-	// and finally sort wagons
-	EngList_SortPartial(&bv->eng_list, _engine_sorter[bv->sort_criteria], num_engines, num_wagons);
-}
-
-static void DrawTrainBuildWindow(Window *w)
-{
-	const buildvehicle_d *bv = &WP(w, buildvehicle_d);
-	int x = 1;
-	int y = 27;
-	EngineID selected_id = bv->sel_engine;
-	int max = w->vscroll.pos + w->vscroll.cap;
-
-	SetWindowWidgetDisabledState(w, BUILD_TRAIN_WIDGET_BUILD, w->window_number == 0); // Disable unless we got a depot to build in
-
-	SetVScrollCount(w, EngList_Count(&bv->eng_list));
-	SetDParam(0, bv->filter.railtype + STR_881C_NEW_RAIL_VEHICLES);
-	DrawWindowWidgets(w);
-
-	/* Draw the engines */
-	engine_drawing_loop(&bv->eng_list, x, &y, selected_id, w->vscroll.pos, max);
-
-	if (selected_id != INVALID_ENGINE) {
-		const RailVehicleInfo *rvi = RailVehInfo(selected_id);
-		const Widget *wi = &w->widget[BUILD_TRAIN_WIDGET_PANEL];
-
-		if (rvi->flags & RVI_WAGON) {
-			DrawTrainWagonPurchaseInfo(2, wi->top + 1, wi->right - wi->left - 2, selected_id);
-		} else {
-			DrawTrainEnginePurchaseInfo(2, wi->top + 1, wi->right - wi->left - 2, selected_id);
-		}
-	}
-	DrawString(85, 15, _engine_sort_listing[bv->sort_criteria], 0x10);
-	DoDrawString(bv->descending_sort_order ? DOWNARROW : UPARROW, 69, 15, 0x10);
-}
-
-static void NewRailVehicleWndProc(Window *w, WindowEvent *e)
-{
-	buildvehicle_d *bv = &WP(w, buildvehicle_d);
-	switch (e->event) {
-		case WE_CREATE:
-			EngList_Create(&bv->eng_list);
-			bv->sel_engine            = INVALID_ENGINE;
-			bv->sort_criteria         = _last_sort_criteria;
-			bv->descending_sort_order = _last_sort_order;
-			GenerateBuildList(w);
-			/* Select the first engine in the list as default when opening the window */
-			if (EngList_Count(&bv->eng_list) > 0) bv->sel_engine = bv->eng_list[0];
-			break;
-
-		case WE_INVALIDATE_DATA:
-			GenerateBuildList(w);
-			break;
-
-		case WE_DESTROY:
-			EngList_Destroy(&bv->eng_list);
-			break;
-
-		case WE_PAINT:
-			DrawTrainBuildWindow(w);
-			break;
-
-		case WE_CLICK: {
-			switch (e->we.click.widget) {
-				case BUILD_TRAIN_WIDGET_SORT_ASCENDING_DESCENDING:
-					bv->descending_sort_order ^= true;
-					_last_sort_order = bv->descending_sort_order;
-					GenerateBuildList(w);
-					SetWindowDirty(w);
-					break;
-
-				case BUILD_TRAIN_WIDGET_SORT_TEXT: case BUILD_TRAIN_WIDGET_SORT_DROPDOWN:/* Select sorting criteria dropdown menu */
-					ShowDropDownMenu(w, _engine_sort_listing, bv->sort_criteria, BUILD_TRAIN_WIDGET_SORT_DROPDOWN, 0, 0);
-					return;
-
-				case BUILD_TRAIN_WIDGET_LIST: {
-					uint i = ((e->we.click.pt.y - 26) / 14) + w->vscroll.pos;
-					uint num_items = EngList_Count(&bv->eng_list);
-					bv->sel_engine = (i < num_items) ? bv->eng_list[i] : INVALID_ENGINE;
-					SetWindowDirty(w);
-					break;
-				}
-
-				case BUILD_TRAIN_WIDGET_BUILD: {
-					EngineID sel_eng = bv->sel_engine;
-					if (sel_eng != INVALID_ENGINE)
-						DoCommandP(w->window_number, sel_eng, 0, (RailVehInfo(sel_eng)->flags & RVI_WAGON) ? CcBuildWagon : CcBuildLoco, CMD_BUILD_RAIL_VEHICLE | CMD_MSG(STR_882B_CAN_T_BUILD_RAILROAD_VEHICLE));
-					break;
-				}
-
-				case BUILD_TRAIN_WIDGET_RENAME: {
-					EngineID sel_eng = bv->sel_engine;
-					if (sel_eng != INVALID_ENGINE) {
-						bv->rename_engine = sel_eng;
-						ShowQueryString(GetCustomEngineName(sel_eng), STR_886A_RENAME_TRAIN_VEHICLE_TYPE, 31, 160, w, CS_ALPHANUMERAL);
-					}
-					break;
-				}
-			}
-		}
-		break;
-
-		case WE_ON_EDIT_TEXT: {
-			if (e->we.edittext.str[0] != '\0') {
-				_cmd_text = e->we.edittext.str;
-				DoCommandP(0, bv->rename_engine, 0, NULL, CMD_RENAME_ENGINE | CMD_MSG(STR_886B_CAN_T_RENAME_TRAIN_VEHICLE));
-			}
-			break;
-		}
-
-		case WE_DROPDOWN_SELECT: /* we have selected a dropdown item in the list */
-			if (bv->sort_criteria != e->we.dropdown.index) {
-				bv->sort_criteria = _last_sort_criteria = e->we.dropdown.index;
-				GenerateBuildList(w);
-				SetWindowDirty(w);
-			}
-			break;
-
-		case WE_RESIZE: {
-			if (e->we.sizing.diff.y == 0) break;
-
-			w->vscroll.cap += e->we.sizing.diff.y / 14;
-			w->widget[BUILD_TRAIN_WIDGET_LIST].data = (w->vscroll.cap << 8) + 1;
-			break;
-		}
-	}
-}
-
-static const WindowDesc _new_rail_vehicle_desc = {
-	WDP_AUTO, WDP_AUTO, 228, 252,
-	WC_BUILD_VEHICLE,0,
-	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_RESIZABLE,
-	_new_rail_vehicle_widgets,
-	NewRailVehicleWndProc
-};
-
-void ShowBuildTrainWindow(TileIndex tile)
-{
-	Window *w;
-
-	DeleteWindowById(WC_BUILD_VEHICLE, tile);
-
-	w = AllocateWindowDescFront(&_new_rail_vehicle_desc, tile);
-	w->vscroll.cap = 8;
-	w->widget[BUILD_TRAIN_WIDGET_LIST].data = (w->vscroll.cap << 8) + 1;
-
-	w->resize.step_height = 14;
-	w->resize.height = w->height - 14 * 4; // Minimum of 4 vehicles in the display
-
-	if (tile != 0) {
-		w->caption_color = GetTileOwner(tile);
-		WP(w,buildvehicle_d).filter.railtype = GetRailType(tile);
-	} else {
-		w->caption_color = _local_player;
-		WP(w,buildvehicle_d).filter.railtype = RAILTYPE_END;
-	}
-}
-
 /**
  * Get the number of pixels for the given wagon length.
  * @param len Length measured in 1/8ths of a standard wagon.
diff --git a/src/vehicle_gui.cpp b/src/vehicle_gui.cpp
index 97f4de633..9b6c3c725 100644
--- a/src/vehicle_gui.cpp
+++ b/src/vehicle_gui.cpp
@@ -1045,20 +1045,15 @@ static void DrawEngineArrayInReplaceWindow(Window *w, int x, int y, int x2, int
 	}
 }
 
-static void DrawVehiclePurchaseInfo(const int x, const int y, uint w, const EngineID engine_number)
+static void DrawVehiclePurchaseInfoLocal(const int x, const int y, uint w, const EngineID engine_number)
 {
 	switch (GetEngine(engine_number)->type) {
-		case VEH_Train:
-			if ((RailVehInfo(engine_number)->flags & RVI_WAGON) == 0) {
-				DrawTrainEnginePurchaseInfo(x, y, w, engine_number);
-			} else {
-				DrawTrainWagonPurchaseInfo(x, y, w, engine_number);
-			}
-			break;
-
 		case VEH_Road: DrawRoadVehPurchaseInfo(x, y, w, engine_number);      break;
 		case VEH_Ship: DrawShipPurchaseInfo(x, y, w, engine_number);         break;
-		case VEH_Aircraft: DrawAircraftPurchaseInfo(x, y, w, engine_number); break;
+		case VEH_Train:
+		case VEH_Aircraft:
+			DrawVehiclePurchaseInfo(x, y, w, engine_number);
+			break;
 		default: NOT_REACHED();
 	}
 }
@@ -1146,7 +1141,7 @@ static void ReplaceVehicleWndProc(Window *w, WindowEvent *e)
 				for (i = 0 ; i < 2 ; i++) {
 					if (selected_id[i] != INVALID_ENGINE) {
 						const Widget *wi = &w->widget[i == 0 ? 3 : 11];
-						DrawVehiclePurchaseInfo(wi->left + 2 , wi->top + 1, wi->right - wi->left - 2, selected_id[i]);
+						DrawVehiclePurchaseInfoLocal(wi->left + 2 , wi->top + 1, wi->right - wi->left - 2, selected_id[i]);
 					}
 				}
 			} break;   // end of paint
@@ -1743,9 +1738,9 @@ void PlayerVehWndProc(Window *w, WindowEvent *e)
 
 				case VLW_WIDGET_NEW_VEHICLES:
 					switch (vl->vehicle_type) {
-						case VEH_Train: ShowBuildTrainWindow(0); break;
 						case VEH_Road:  ShowBuildRoadVehWindow(0); break;
 						case VEH_Ship:  ShowBuildShipWindow(0); break;
+						case VEH_Train:
 						case VEH_Aircraft: ShowBuildVehicleWindow(0, vl->vehicle_type); break;
 					}
 					break;
diff --git a/src/vehicle_gui.h b/src/vehicle_gui.h
index a3d20e4f7..77d067db1 100644
--- a/src/vehicle_gui.h
+++ b/src/vehicle_gui.h
@@ -32,10 +32,8 @@ static inline bool ValidVLWFlags(uint16 flags)
 
 void PlayerVehWndProc(Window *w, WindowEvent *e);
 
-void DrawTrainEnginePurchaseInfo(int x, int y, uint w, EngineID engine_number);
-void DrawTrainWagonPurchaseInfo(int x, int y, uint w, EngineID engine_number);
+void DrawVehiclePurchaseInfo(int x, int y, uint w, EngineID engine_number);
 void DrawRoadVehPurchaseInfo(int x, int y, uint w, EngineID engine_number);
-void DrawAircraftPurchaseInfo(int x, int y, uint w, EngineID engine_number);
 void DrawShipPurchaseInfo(int x, int y, uint w, EngineID engine_number);
 
 void DrawTrainImage(const Vehicle *v, int x, int y, int count, int skip, VehicleID selection);
@@ -43,7 +41,6 @@ void DrawRoadVehImage(const Vehicle *v, int x, int y, VehicleID selection);
 void DrawShipImage(const Vehicle *v, int x, int y, VehicleID selection);
 void DrawAircraftImage(const Vehicle *v, int x, int y, VehicleID selection);
 
-void ShowBuildTrainWindow(TileIndex tile);
 void ShowBuildRoadVehWindow(TileIndex tile);
 void ShowBuildShipWindow(TileIndex tile);
 void ShowBuildVehicleWindow(TileIndex tile, byte type);