(svn r6513) -Codechange: unified the code to draw depot windows

   This change is intended to make it easier to make depot behaviour consistent
   and faster to code when adding more features in the future
   The user interface should hopefully not be affected by this

1 files changed, 808 insertions, 0 deletions

diff --git a/depot_gui.c b/depot_gui.c
new file mode 100644
index 000000000..0d3920f50
--- /dev/null
+++ b/depot_gui.c
@@ -0,0 +1,808 @@
+/* $Id$ */
+
+#include "stdafx.h"
+#include "openttd.h"
+#include "functions.h"
+#include "ship.h"
+#include "table/strings.h"
+#include "table/sprites.h"
+#include "gui.h"
+#include "gfx.h"
+#include "vehicle.h"
+#include "viewport.h"
+#include "command.h"
+#include "depot.h"
+#include "vehicle_gui.h"
+#include "station_map.h"
+#include "newgrf_engine.h"
+#include "train.h"
+
+enum {
+	DEPOT_WIDGET_CLOSEBOX =  0,
+	DEPOT_WIDGET_CAPTION  =  1,
+	DEPOT_WIDGET_STICKY   =  2,
+	DEPOT_WIDGET_V_RESIZE =  3, // blank widget, that fills the gab at the sell button when resizing vertically
+	DEPOT_WIDGET_SELL     =  4,
+	DEPOT_WIDGET_SELL_ALL =  5,
+	DEPOT_WIDGET_MATRIX   =  6,
+	DEPOT_WIDGET_V_SCROLL =  7, // Vertical scrollbar
+	DEPOT_WIDGET_H_SCROLL =  8, // Horizontal scrollbar
+	DEPOT_WIDGET_BUILD    =  9,
+	DEPOT_WIDGET_CLONE    = 10,
+	DEPOT_WIDGET_LOCATION = 11,
+	DEPOT_WIDGET_H_RESIZE = 12, // blank widget, that fills the gab at the build and clone buttons when resizing horizontally
+	DEPOT_WIDGET_RESIZE   = 13,
+};
+
+/* Widget array for all depot windows.
+ * If a widget is needed in some windows only (like train specific), add it for all windows
+ * and use w->hidden_state in ShowDepotWindow() to remove it in the windows where it should not be
+ * Keep the widget numbers in sync with the enum or really bad stuff will happen!!! */
+static const Widget _depot_widgets[] = {
+	{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,            STR_018B_CLOSE_WINDOW},            // DEPOT_WIDGET_CLOSEBOX
+	{    WWT_CAPTION,  RESIZE_RIGHT,    14,    11,   292,     0,    13, 0x0,                 STR_018C_WINDOW_TITLE_DRAG_THIS},  // DEPOT_WIDGET_CAPTION
+	{  WWT_STICKYBOX,     RESIZE_LR,    14,   293,   304,     0,    13, 0x0,                 STR_STICKY_BUTTON},                // DEPOT_WIDGET_STICKY
+	{      WWT_PANEL,    RESIZE_LRB,    14,   270,   292,    14,    13, 0x0,                 STR_NULL},                         // DEPOT_WIDGET_V_RESIZE
+	{     WWT_IMGBTN,   RESIZE_LRTB,    14,   270,   292,    14,    61, 0x2A9,               STR_NULL},                         // DEPOT_WIDGET_SELL
+	{      WWT_PANEL,   RESIZE_LRTB,    14,   326,   348,     0,     0, 0x2BF,               STR_DRAG_WHOLE_TRAIN_TO_SELL_TIP}, // DEPOT_WIDGET_SELL_ALL, trains only
+
+	{     WWT_MATRIX,     RESIZE_RB,    14,     0,   269,    14,    61, 0x0,                 STR_NULL},                         // DEPOT_WIDGET_MATRIX
+	{  WWT_SCROLLBAR,    RESIZE_LRB,    14,   293,   304,    14,    61, 0x0,                 STR_0190_SCROLL_BAR_SCROLLS_LIST}, // DEPOT_WIDGET_V_SCROLL
+
+	{ WWT_HSCROLLBAR,    RESIZE_RTB,    14,     0,   325,    98,   109, 0x0,                 STR_HSCROLL_BAR_SCROLLS_LIST},     // DEPOT_WIDGET_H_SCROLL, trains only
+
+	/* The buttons in the bottom of the window. left and right is not important as they are later resized to be equal in size
+	 * This calculation is based on right in DEPOT_WIDGET_LOCATION and it presumes left of DEPOT_WIDGET_BUILD is 0            */
+	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,     0,    96,    62,    73, 0x0,                 STR_NULL},                         // DEPOT_WIDGET_BUILD
+	{WWT_NODISTXTBTN,     RESIZE_TB,    14,    97,   194,    62,    73, 0x0,                 STR_NULL},                         // DEPOT_WIDGET_CLONE
+	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,   195,   292,    62,    73, STR_00E4_LOCATION,   STR_NULL},                         // DEPOT_WIDGET_LOCATION
+
+	{      WWT_PANEL,    RESIZE_RTB,    14,   293,   292,    62,    73, 0x0,                 STR_NULL},                         // DEPOT_WIDGET_H_RESIZE
+	{  WWT_RESIZEBOX,   RESIZE_LRTB,    14,   293,   304,    62,    73, 0x0,                 STR_RESIZE_BUTTON},                // DEPOT_WIDGET_RESIZE
+	{   WIDGETS_END},
+};
+
+/*
+ * Since all depot window sizes aren't the same, we need to modify sizes a little.
+ * It's done with the following arrays of widget indexes. Each of them tells if a widget side should be moved and in what direction.
+ * How long they should be moved and for what window types are controlled in ShowDepotWindow()
+ */
+
+/* List of widgets where the left side should be moved to the right */
+static const byte left[] = {
+	DEPOT_WIDGET_STICKY,
+	DEPOT_WIDGET_V_RESIZE,
+	DEPOT_WIDGET_SELL,
+	DEPOT_WIDGET_V_SCROLL,
+	DEPOT_WIDGET_H_RESIZE,
+	DEPOT_WIDGET_RESIZE,
+};
+
+/* List of widgets where the right side should be moved to the right */
+static const byte right[] = {
+	DEPOT_WIDGET_CAPTION,
+	DEPOT_WIDGET_STICKY,
+	DEPOT_WIDGET_V_RESIZE,
+	DEPOT_WIDGET_SELL,
+	DEPOT_WIDGET_MATRIX,
+	DEPOT_WIDGET_V_SCROLL,
+	DEPOT_WIDGET_LOCATION,
+	DEPOT_WIDGET_H_RESIZE,
+	DEPOT_WIDGET_RESIZE,
+};
+
+/* List of widgets where the top side should be moved down */
+static const byte top[] = {
+	DEPOT_WIDGET_BUILD,
+	DEPOT_WIDGET_CLONE,
+	DEPOT_WIDGET_LOCATION,
+	DEPOT_WIDGET_H_RESIZE,
+	DEPOT_WIDGET_RESIZE,
+};
+
+/* List of widgets where the bottom side should be moved down */
+static const byte bottom[] = {
+	DEPOT_WIDGET_SELL,
+	DEPOT_WIDGET_MATRIX,
+	DEPOT_WIDGET_V_SCROLL,
+	DEPOT_WIDGET_BUILD,
+	DEPOT_WIDGET_CLONE,
+	DEPOT_WIDGET_LOCATION,
+	DEPOT_WIDGET_H_RESIZE,
+	DEPOT_WIDGET_RESIZE,
+};
+
+static void DepotWndProc(Window *w, WindowEvent *e);
+
+static const WindowDesc _train_depot_desc = {
+	-1, -1, 361, 122,
+	WC_VEHICLE_DEPOT,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON | WDF_RESIZABLE,
+	_depot_widgets,
+	DepotWndProc
+};
+
+static const WindowDesc _road_depot_desc = {
+	-1, -1, 315, 68,
+	WC_VEHICLE_DEPOT,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON | WDF_RESIZABLE,
+	_depot_widgets,
+	DepotWndProc
+};
+
+static const WindowDesc _ship_depot_desc = {
+	-1, -1, 305, 74,
+	WC_VEHICLE_DEPOT,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON | WDF_RESIZABLE,
+	_depot_widgets,
+	DepotWndProc
+};
+
+static const WindowDesc _aircraft_depot_desc = {
+	-1, -1, 331, 74,
+	WC_VEHICLE_DEPOT,0,
+	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON | WDF_RESIZABLE,
+	_depot_widgets,
+	DepotWndProc
+};
+
+extern int WagonLengthToPixels(int len);
+
+void CcCloneVehicle(bool success, TileIndex tile, uint32 p1, uint32 p2)
+{
+	if (!success) return;
+	CcCloneShip(true, tile, p1, p2);
+}
+
+static inline void ShowVehicleViewWindow(const Vehicle *v)
+{
+	switch (v->type) {
+		case VEH_Train:    ShowTrainViewWindow(v);    break;
+		case VEH_Road:     ShowRoadVehViewWindow(v);  break;
+		case VEH_Ship:     ShowShipViewWindow(v);     break;
+		case VEH_Aircraft: ShowAircraftViewWindow(v); break;
+		default: NOT_REACHED();
+	}
+}
+
+static void DrawDepotWindow(Window *w)
+{
+	Vehicle **vl = WP(w, depot_d).vehicle_list;
+	TileIndex tile;
+	int x, y, i, hnum, max;
+	uint16 num = WP(w, depot_d).engine_count;
+
+	tile = w->window_number;
+
+	/* setup disabled buttons */
+	w->disabled_state =
+		IsTileOwner(tile, _local_player) ? 0 : ((1 << DEPOT_WIDGET_SELL) | (1 << DEPOT_WIDGET_SELL_ALL) | (1 << DEPOT_WIDGET_BUILD) | (1 << DEPOT_WIDGET_CLONE));
+
+	/* determine amount of items for scroller */
+	if (WP(w, depot_d).type == VEH_Train) {
+		hnum = 8;
+		for (num = 0; num < WP(w, depot_d).engine_count; num++) {
+			const Vehicle *v = vl[num];
+			hnum = maxu(hnum, v->u.rail.cached_total_length);
+		}
+		/* Always have 1 empty row, so people can change the setting of the train */
+		SetVScrollCount(w, WP(w, depot_d).engine_count + WP(w, depot_d).wagon_count + 1);
+		SetHScrollCount(w, WagonLengthToPixels(hnum));
+	} else {
+		SetVScrollCount(w, (num + w->hscroll.cap - 1) / w->hscroll.cap);
+	}
+
+	/* locate the depot struct */
+	if (WP(w, depot_d).type == VEH_Aircraft) {
+		SetDParam(0, GetStationIndex(tile)); // Airport name
+	} else {
+		Depot *depot = GetDepotByTile(tile);
+		assert(depot != NULL);
+
+		SetDParam(0, depot->town_index);
+	}
+
+	DrawWindowWidgets(w);
+
+	x = 2;
+	y = 15;
+	num = w->vscroll.pos * w->hscroll.cap;
+	if (WP(w, depot_d).type == VEH_Train) {
+		max = min(WP(w, depot_d).engine_count, w->vscroll.pos + w->vscroll.cap);
+		num = w->vscroll.pos;
+	} else {
+		max = min(WP(w, depot_d).engine_count, num + (w->vscroll.cap * w->hscroll.cap));
+		num = w->vscroll.pos * w->hscroll.cap;
+	}
+
+	for (; num < max; num++) {
+		const Vehicle *v = vl[num];
+		byte diff_x = 0, diff_y = 0;
+
+		switch (WP(w, depot_d).type) {
+			case VEH_Train:
+				DrawTrainImage(v, x + 21, y, w->hscroll.cap + 4, w->hscroll.pos, WP(w,depot_d).sel);
+
+				/* Number of wagons relative to a standard length wagon (rounded up) */
+				SetDParam(0, (v->u.rail.cached_total_length + 7) / 8);
+				DrawStringRightAligned(w->widget[DEPOT_WIDGET_MATRIX].right - 1, y + 4, STR_TINY_BLACK, 0); // Draw the counter
+				break;
+
+			case VEH_Road:     DrawRoadVehImage( v, x + 24, y, WP(w, depot_d).sel); break;
+			case VEH_Ship:     DrawShipImage(    v, x + 19, y, WP(w, depot_d).sel); break;
+			case VEH_Aircraft: DrawAircraftImage(v, x + 12, y, WP(w, depot_d).sel); break;
+			default: NOT_REACHED();
+		}
+
+		if (w->resize.step_height == 14) {
+			/* VEH_Train and VEH_Road, which are low */
+			diff_x = 15;
+		} else {
+			/* VEH_Ship and VEH_Aircraft, which are tall */
+			diff_y = 12;
+		}
+
+		DrawSprite((v->vehstatus & VS_STOPPED) ? SPR_FLAG_VEH_STOPPED : SPR_FLAG_VEH_RUNNING, x + diff_x, y + diff_y);
+
+		SetDParam(0, v->unitnumber);
+		DrawString(x, y + 2, (uint16)(v->max_age-366) >= v->age ? STR_00E2 : STR_00E3, 0);
+
+		if (WP(w, depot_d).type == VEH_Train) {
+			y += w->resize.step_height;
+		} else {
+			if ((x += w->resize.step_width) == 2 + (int)w->resize.step_width * w->hscroll.cap) {
+				x = 2;
+				y += w->resize.step_height;
+			}
+		}
+	}
+
+	max = min(WP(w, depot_d).engine_count + WP(w, depot_d).wagon_count, w->vscroll.pos + w->vscroll.cap);
+
+	/* draw the train wagons, that do not have an engine in front */
+	for (; num < max; num++) {
+		const Vehicle *v = WP(w, depot_d).wagon_list[num - WP(w, depot_d).engine_count];
+		const Vehicle *u;
+
+		DrawTrainImage(v, x + 50, y, w->hscroll.cap - 29, 0, WP(w,depot_d).sel);
+		DrawString(x, y + 2, STR_8816, 0);
+
+		/*Draw the train counter */
+		i = 0;
+		u = v;
+		do i++; while ( (u=u->next) != NULL); // Determine length of train
+		SetDParam(0, i);                      // Set the counter
+		DrawStringRightAligned(w->widget[DEPOT_WIDGET_MATRIX].right - 1, y + 4, STR_TINY_BLACK, 0); // Draw the counter
+		y += 14;
+	}
+}
+
+typedef struct GetDepotVehiclePtData {
+	Vehicle *head;
+	Vehicle *wagon;
+} GetDepotVehiclePtData;
+
+enum {
+	MODE_ERROR        =  1,
+	MODE_DRAG_VEHICLE =  0,
+	MODE_SHOW_VEHICLE = -1,
+	MODE_START_STOP   = -2,
+};
+
+static int GetVehicleFromDepotWndPt(const Window *w, int x, int y, Vehicle **veh, GetDepotVehiclePtData *d)
+{
+	Vehicle **vl = WP(w, depot_d).vehicle_list;
+	uint xt, row, xm, ym;
+	int pos, skip = 0;
+
+	if (WP(w, depot_d).type == VEH_Train) {
+		xt = 0;
+		x -= 23;
+	} else {
+		xt = x / w->resize.step_width;
+		xm = x % w->resize.step_width;
+		if (xt >= w->hscroll.cap) return MODE_ERROR;
+
+		ym = (y - 14) % w->resize.step_height;
+	}
+
+	row = (y - 14) / w->resize.step_height;
+	if (row >= w->vscroll.cap) return MODE_ERROR;
+
+	pos = (row + w->vscroll.pos) * w->hscroll.cap + xt;
+
+	if (WP(w, depot_d).type == VEH_Train) pos = row + w->vscroll.pos;
+
+	if (WP(w, depot_d).engine_count + WP(w, depot_d).wagon_count <= pos) return MODE_ERROR; // empty block, so no vehicle is selected
+
+	if (WP(w, depot_d).engine_count > pos) {
+		*veh = vl[pos];
+		skip = w->hscroll.pos;
+	} else {
+		vl = WP(w, depot_d).wagon_list;
+		pos -= WP(w, depot_d).engine_count;
+		*veh = vl[pos];
+		/* free wagons don't have an initial loco. */
+		x -= _traininfo_vehicle_width;
+	}
+
+	switch (WP(w, depot_d).type) {
+		case VEH_Train: {
+			Vehicle *v = *veh;
+			d->head = d->wagon = v;
+
+			/* either pressed the flag or the number, but only when it's a loco */
+			if (x < 0 && IsFrontEngine(v)) return (x >= -10) ? MODE_START_STOP : MODE_SHOW_VEHICLE;
+
+			skip = (skip * 8) / _traininfo_vehicle_width;
+			x = (x * 8) / _traininfo_vehicle_width;
+
+			/* Skip vehicles that are scrolled off the list */
+			x += skip;
+
+			/* find the vehicle in this row that was clicked */
+			while (v != NULL && (x -= v->u.rail.cached_veh_length) >= 0) v = v->next;
+
+			/* if an articulated part was selected, find its parent */
+			while (v != NULL && IsArticulatedPart(v)) v = GetPrevVehicleInChain(v);
+
+			d->wagon = v;
+
+			return MODE_DRAG_VEHICLE;
+			}
+			break;
+
+		case VEH_Road:
+			if (xm >= 24) return MODE_DRAG_VEHICLE;
+			if (xm <= 16) return MODE_SHOW_VEHICLE;
+			break;
+
+		case VEH_Ship:
+			if (xm >= 19) return MODE_DRAG_VEHICLE;
+			if (ym <= 10) return MODE_SHOW_VEHICLE;
+			break;
+
+		case VEH_Aircraft:
+			if (xm >= 12) return MODE_DRAG_VEHICLE;
+			if (ym <= 12) return MODE_SHOW_VEHICLE;
+			break;
+
+		default: NOT_REACHED();
+	}
+	return MODE_START_STOP;
+}
+
+static void TrainDepotMoveVehicle(Vehicle *wagon, VehicleID sel, Vehicle *head)
+{
+	Vehicle *v;
+
+	v = GetVehicle(sel);
+
+	if (v == wagon) return;
+
+	if (wagon == NULL) {
+		if (head != NULL) wagon = GetLastVehicleInChain(head);
+	} else  {
+		wagon = GetPrevVehicleInChain(wagon);
+		if (wagon == NULL) return;
+	}
+
+	if (wagon == v) return;
+
+	DoCommandP(v->tile, v->index + ((wagon == NULL ? INVALID_VEHICLE : wagon->index) << 16), _ctrl_pressed ? 1 : 0, NULL, CMD_MOVE_RAIL_VEHICLE | CMD_MSG(STR_8837_CAN_T_MOVE_VEHICLE));
+}
+
+static void DepotClick(Window *w, int x, int y)
+{
+	GetDepotVehiclePtData gdvp;
+	Vehicle *v = NULL;
+	int mode = GetVehicleFromDepotWndPt(w, x, y, &v, &gdvp);
+
+	/* share / copy orders */
+	if (_thd.place_mode && mode <= 0) {
+		_place_clicked_vehicle = (WP(w, depot_d).type == VEH_Train ? gdvp.head : v);
+		return;
+	}
+
+	if (WP(w, depot_d).type == VEH_Train) v = gdvp.wagon;
+
+	switch (mode) {
+		case MODE_ERROR: // invalid
+			return;
+
+		case MODE_DRAG_VEHICLE: { // start dragging of vehicle
+			VehicleID sel = WP(w, depot_d).sel;
+
+			if (WP(w, depot_d).type == VEH_Train && sel != INVALID_VEHICLE) {
+				WP(w,depot_d).sel = INVALID_VEHICLE;
+				TrainDepotMoveVehicle(v, sel, gdvp.head);
+			} else if (v != NULL) {
+				int image;
+
+				switch (WP(w, depot_d).type) {
+					case VEH_Train:    image = GetTrainImage(v, DIR_W);    break;
+					case VEH_Road:     image = GetRoadVehImage(v, DIR_W);  break;
+					case VEH_Ship:     image = GetShipImage(v, DIR_W);     break;
+					case VEH_Aircraft: image = GetAircraftImage(v, DIR_W); break;
+					default: NOT_REACHED(); image = 0;
+				}
+
+				WP(w, depot_d).sel = v->index;
+				SetWindowDirty(w);
+				SetObjectToPlaceWnd(GetVehiclePalette(v) | image, 4, w);
+			}
+			}
+			break;
+
+		case MODE_SHOW_VEHICLE: // show info window
+			ShowVehicleViewWindow(v);
+			break;
+
+		case MODE_START_STOP: { // click start/stop flag
+			uint command;
+
+			switch (WP(w, depot_d).type) {
+				case VEH_Train:    command = CMD_START_STOP_TRAIN | CMD_MSG(STR_883B_CAN_T_STOP_START_TRAIN);          break;
+				case VEH_Road:     command = CMD_START_STOP_ROADVEH | CMD_MSG(STR_9015_CAN_T_STOP_START_ROAD_VEHICLE); break;
+				case VEH_Ship:     command = CMD_START_STOP_SHIP | CMD_MSG(STR_9818_CAN_T_STOP_START_SHIP);            break;
+				case VEH_Aircraft: command = CMD_START_STOP_AIRCRAFT | CMD_MSG(STR_A016_CAN_T_STOP_START_AIRCRAFT);    break;
+				default: NOT_REACHED(); command = 0;
+			}
+			DoCommandP(v->tile, v->index, 0, NULL, command);
+			}
+			break;
+
+		default: NOT_REACHED();
+	}
+}
+
+/**
+ * Clones a vehicle
+ * @param *v is the original vehicle to clone
+ * @param *w is the window of the depot where the clone is build
+ */
+static void HandleCloneVehClick(const Vehicle *v, const Window *w)
+{
+	uint error_str;
+
+	if (v == NULL) return;
+
+	if (v->type == VEH_Train && !IsFrontEngine(v)) {
+		v = GetFirstVehicleInChain(v);
+		/* Do nothing when clicking on a train in depot with no loc attached */
+		if (!IsFrontEngine(v)) return;
+	}
+
+	switch (v->type) {
+		case VEH_Train:    error_str = CMD_MSG(STR_882B_CAN_T_BUILD_RAILROAD_VEHICLE); break;
+		case VEH_Road:     error_str = CMD_MSG(STR_9009_CAN_T_BUILD_ROAD_VEHICLE);     break;
+		case VEH_Ship:     error_str = CMD_MSG(STR_980D_CAN_T_BUILD_SHIP);             break;
+		case VEH_Aircraft: error_str = CMD_MSG(STR_A008_CAN_T_BUILD_AIRCRAFT);         break;
+		default: return;
+	}
+
+	DoCommandP(w->window_number, v->index, _ctrl_pressed ? 1 : 0, CcCloneVehicle, CMD_CLONE_VEHICLE | error_str);
+
+	ResetObjectToPlace();
+}
+
+static void ClonePlaceObj(const Window *w)
+{
+	const Vehicle *v = CheckMouseOverVehicle();
+
+	if (v != NULL) HandleCloneVehClick(v, w);
+}
+
+static void DepotWndProc(Window *w, WindowEvent *e)
+{
+	switch (e->event) {
+		case WE_CREATE:
+			WP(w, depot_d).vehicle_list = NULL;
+			WP(w, depot_d).wagon_list   = NULL;
+			WP(w, depot_d).engine_count = 0;
+			WP(w, depot_d).wagon_count  = 0;
+			break;
+
+		case WE_PAINT:
+			/* Generate the vehicle list
+			 * It's ok to use the wagon pointers for non-trains as they will be ignored */
+			BuildDepotVehicleList(WP(w, depot_d).type, w->window_number,
+				&WP(w, depot_d).vehicle_list, &WP(w, depot_d).engine_list_length, &WP(w, depot_d).engine_count,
+			    &WP(w, depot_d).wagon_list,   &WP(w, depot_d).wagon_list_length,  &WP(w, depot_d).wagon_count);
+			DrawDepotWindow(w);
+			break;
+
+		case WE_CLICK:
+			switch (e->we.click.widget) {
+				case DEPOT_WIDGET_MATRIX: // List
+					DepotClick(w, e->we.click.pt.x, e->we.click.pt.y);
+					break;
+
+				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_Aircraft: ShowBuildAircraftWindow(w->window_number); break;
+					default: NOT_REACHED();
+					}
+					break;
+
+				case DEPOT_WIDGET_CLONE: // Clone button
+					InvalidateWidget(w, DEPOT_WIDGET_CLONE);
+					TOGGLEBIT(w->click_state, DEPOT_WIDGET_CLONE);
+
+					if (HASBIT(w->click_state, DEPOT_WIDGET_CLONE)) {
+						_place_clicked_vehicle = NULL;
+						SetObjectToPlaceWnd(SPR_CURSOR_CLONE, VHM_RECT, w);
+					} else {
+						ResetObjectToPlace();
+					}
+						break;
+
+				case DEPOT_WIDGET_LOCATION: ScrollMainWindowToTile(w->window_number); break;
+			}
+			break;
+
+		case WE_PLACE_OBJ: {
+			ClonePlaceObj(w);
+		} break;
+
+		case WE_ABORT_PLACE_OBJ: {
+			CLRBIT(w->click_state, DEPOT_WIDGET_CLONE);
+			InvalidateWidget(w, DEPOT_WIDGET_CLONE);
+		} break;
+
+			/* check if a vehicle in a depot was clicked.. */
+		case WE_MOUSELOOP: {
+			const Vehicle *v = _place_clicked_vehicle;
+
+			/* since OTTD checks all open depot windows, we will make sure that it triggers the one with a clicked clone button */
+			if (v != NULL && HASBIT(w->click_state, DEPOT_WIDGET_CLONE)) {
+				_place_clicked_vehicle = NULL;
+				HandleCloneVehClick(v, w);
+			}
+		} break;
+
+		case WE_DESTROY:
+			DeleteWindowById(WC_BUILD_VEHICLE, w->window_number);
+			free((void*)WP(w, depot_d).vehicle_list);
+			free((void*)WP(w, depot_d).wagon_list);
+			break;
+
+		case WE_DRAGDROP:
+			switch (e->we.click.widget) {
+				case DEPOT_WIDGET_MATRIX: {
+					Vehicle *v;
+					VehicleID sel = WP(w, depot_d).sel;
+
+					WP(w, depot_d).sel = INVALID_VEHICLE;
+					SetWindowDirty(w);
+
+					if (WP(w, depot_d).type == VEH_Train) {
+						GetDepotVehiclePtData gdvp;
+
+						if (GetVehicleFromDepotWndPt(w, e->we.dragdrop.pt.x, e->we.dragdrop.pt.y, &v, &gdvp) == 0 &&
+							sel != INVALID_VEHICLE) {
+							if (gdvp.wagon != NULL && gdvp.wagon->index == sel && _ctrl_pressed) {
+								DoCommandP(GetVehicle(sel)->tile, GetVehicle(sel)->index, true, NULL, CMD_REVERSE_TRAIN_DIRECTION | CMD_MSG(STR_9033_CAN_T_MAKE_VEHICLE_TURN));
+							} else if (gdvp.wagon == NULL || gdvp.wagon->index != sel) {
+								TrainDepotMoveVehicle(gdvp.wagon, sel, gdvp.head);
+							} else if (gdvp.head != NULL && IsFrontEngine(gdvp.head)) {
+								ShowTrainViewWindow(gdvp.head);
+							}
+						}
+					} else if (GetVehicleFromDepotWndPt(w, e->we.dragdrop.pt.x, e->we.dragdrop.pt.y, &v, NULL) == 0 &&
+						v != NULL &&
+						sel == v->index) {
+						ShowVehicleViewWindow(v);
+					}
+				} break;
+
+				case DEPOT_WIDGET_SELL: case DEPOT_WIDGET_SELL_ALL:
+					if (!HASBIT(w->disabled_state, DEPOT_WIDGET_SELL) &&
+						WP(w, depot_d).sel != INVALID_VEHICLE) {
+						Vehicle *v;
+						uint command;
+						int sell_cmd;
+						bool is_engine;
+
+						if (HASBIT(w->disabled_state, e->we.click.widget)) return;
+						if (WP(w, depot_d).sel == INVALID_VEHICLE) return;
+
+						HandleButtonClick(w, e->we.click.widget);
+
+						v = GetVehicle(WP(w, depot_d).sel);
+						WP(w, depot_d).sel = INVALID_VEHICLE;
+						SetWindowDirty(w);
+
+						sell_cmd = (v->type == VEH_Train && (e->we.click.widget == DEPOT_WIDGET_SELL_ALL || _ctrl_pressed)) ? 1 : 0;
+
+						is_engine = (!(v->type == VEH_Train && !IsFrontEngine(v)));
+
+						if (is_engine) {
+							_backup_orders_tile = v->tile;
+							BackupVehicleOrders(v, _backup_orders_data);
+						}
+
+						switch (v->type) {
+							case VEH_Train:    command = CMD_SELL_RAIL_WAGON | CMD_MSG(STR_8839_CAN_T_SELL_RAILROAD_VEHICLE); break;
+							case VEH_Road:     command = CMD_SELL_ROAD_VEH | CMD_MSG(STR_9014_CAN_T_SELL_ROAD_VEHICLE);       break;
+							case VEH_Ship:     command = CMD_SELL_SHIP | CMD_MSG(STR_980C_CAN_T_SELL_SHIP);                   break;
+							case VEH_Aircraft: command = CMD_SELL_AIRCRAFT | CMD_MSG(STR_A01C_CAN_T_SELL_AIRCRAFT);           break;
+							default: NOT_REACHED(); command = 0;
+						}
+
+						if (!DoCommandP(v->tile, v->index, sell_cmd, NULL, command) && is_engine) _backup_orders_tile = 0;
+					}
+					break;
+				default:
+					WP(w, depot_d).sel = INVALID_VEHICLE;
+					SetWindowDirty(w);
+			}
+			break;
+
+		case WE_RESIZE:
+			w->vscroll.cap += e->we.sizing.diff.y / (int)w->resize.step_height;
+			w->hscroll.cap += e->we.sizing.diff.x / (int)w->resize.step_width;
+			w->widget[DEPOT_WIDGET_MATRIX].data = (w->vscroll.cap << 8) + (WP(w, depot_d).type == VEH_Train ? 1 : w->hscroll.cap);
+			break;
+	}
+}
+
+static void SetupStringsForDepotWindow(Window *w, byte type)
+{
+	switch (type) {
+		case VEH_Train:
+			w->widget[DEPOT_WIDGET_CAPTION].data      = STR_8800_TRAIN_DEPOT;
+			w->widget[DEPOT_WIDGET_SELL].tooltips     = STR_8841_DRAG_TRAIN_VEHICLE_TO_HERE;
+			w->widget[DEPOT_WIDGET_MATRIX].tooltips   = STR_883F_TRAINS_CLICK_ON_TRAIN_FOR;
+			w->widget[DEPOT_WIDGET_BUILD].data        = STR_8815_NEW_VEHICLES;
+			w->widget[DEPOT_WIDGET_BUILD].tooltips    = STR_8840_BUILD_NEW_TRAIN_VEHICLE;
+			w->widget[DEPOT_WIDGET_CLONE].data        = STR_CLONE_TRAIN;
+			w->widget[DEPOT_WIDGET_CLONE].tooltips    = STR_CLONE_TRAIN_DEPOT_INFO;
+			w->widget[DEPOT_WIDGET_LOCATION].tooltips = STR_8842_CENTER_MAIN_VIEW_ON_TRAIN;
+			break;
+
+		case VEH_Road:
+			w->widget[DEPOT_WIDGET_CAPTION].data      = STR_9003_ROAD_VEHICLE_DEPOT;
+			w->widget[DEPOT_WIDGET_SELL].tooltips     = STR_9024_DRAG_ROAD_VEHICLE_TO_HERE;
+			w->widget[DEPOT_WIDGET_MATRIX].tooltips   = STR_9022_VEHICLES_CLICK_ON_VEHICLE;
+			w->widget[DEPOT_WIDGET_BUILD].data        = STR_9004_NEW_VEHICLES;
+			w->widget[DEPOT_WIDGET_BUILD].tooltips    = STR_9023_BUILD_NEW_ROAD_VEHICLE;
+			w->widget[DEPOT_WIDGET_CLONE].data        = STR_CLONE_ROAD_VEHICLE;
+			w->widget[DEPOT_WIDGET_CLONE].tooltips    = STR_CLONE_ROAD_VEHICLE_DEPOT_INFO;
+			w->widget[DEPOT_WIDGET_LOCATION].tooltips = STR_9025_CENTER_MAIN_VIEW_ON_ROAD;
+			break;
+
+		case VEH_Ship:
+			w->widget[DEPOT_WIDGET_CAPTION].data      = STR_9803_SHIP_DEPOT;
+			w->widget[DEPOT_WIDGET_SELL].tooltips     = STR_9821_DRAG_SHIP_TO_HERE_TO_SELL;
+			w->widget[DEPOT_WIDGET_MATRIX].tooltips   = STR_981F_SHIPS_CLICK_ON_SHIP_FOR;
+			w->widget[DEPOT_WIDGET_BUILD].data        = STR_9804_NEW_SHIPS;
+			w->widget[DEPOT_WIDGET_BUILD].tooltips    = STR_9820_BUILD_NEW_SHIP;
+			w->widget[DEPOT_WIDGET_CLONE].data        = STR_CLONE_SHIP;
+			w->widget[DEPOT_WIDGET_CLONE].tooltips    = STR_CLONE_SHIP_DEPOT_INFO;
+			w->widget[DEPOT_WIDGET_LOCATION].tooltips = STR_9822_CENTER_MAIN_VIEW_ON_SHIP;
+			break;
+
+		case VEH_Aircraft:
+			w->widget[DEPOT_WIDGET_CAPTION].data      = STR_A002_AIRCRAFT_HANGAR;
+			w->widget[DEPOT_WIDGET_SELL].tooltips     = STR_A023_DRAG_AIRCRAFT_TO_HERE_TO;
+			w->widget[DEPOT_WIDGET_MATRIX].tooltips   = STR_A021_AIRCRAFT_CLICK_ON_AIRCRAFT;
+			w->widget[DEPOT_WIDGET_BUILD].data        = STR_A003_NEW_AIRCRAFT;
+			w->widget[DEPOT_WIDGET_BUILD].tooltips    = STR_A022_BUILD_NEW_AIRCRAFT;
+			w->widget[DEPOT_WIDGET_CLONE].data        = STR_CLONE_AIRCRAFT;
+			w->widget[DEPOT_WIDGET_CLONE].tooltips    = STR_CLONE_AIRCRAFT_INFO_HANGAR_WINDOW;
+			w->widget[DEPOT_WIDGET_LOCATION].tooltips = STR_A024_CENTER_MAIN_VIEW_ON_HANGAR;
+			break;
+	}
+}
+
+/** Opens a depot window
+ * @param tile The tile where the depot/hangar is located
+ * @param type The type of vehicles in the depot
+ */
+void ShowDepotWindow(TileIndex tile, byte type)
+{
+	Window *w;
+
+	switch (type) {
+		case VEH_Train:    w = AllocateWindowDescFront(&_train_depot_desc, tile);    break;
+		case VEH_Road:     w = AllocateWindowDescFront(&_road_depot_desc, tile);     break;
+		case VEH_Ship:     w = AllocateWindowDescFront(&_ship_depot_desc, tile);     break;
+		case VEH_Aircraft: w = AllocateWindowDescFront(&_aircraft_depot_desc, tile); break;
+		default: NOT_REACHED(); w = NULL;
+	}
+
+	if (w != NULL) {
+		int16 horizontal = 0, vertical = 0;
+		w->caption_color = GetTileOwner(tile);
+		WP(w, depot_d).type = type;
+		WP(w, depot_d).sel = INVALID_VEHICLE;
+		_backup_orders_tile = 0;
+
+		/* Resize the window according to the vehicle type */
+		switch (type) {
+			case VEH_Train:
+				horizontal = 56;
+				vertical = 48;
+				w->vscroll.cap = 6;
+				w->hscroll.cap = 10 * 29;
+				w->resize.step_width = 1;
+				w->resize.step_height = 14;
+				w->widget[DEPOT_WIDGET_MATRIX].bottom -= 12; // Make room for the horizontal scrollbar
+				break;
+
+			case VEH_Road:
+				horizontal = 10;
+				vertical = -6;
+				w->vscroll.cap = 3;
+				w->hscroll.cap = 5;
+				w->resize.step_width = 56;
+				w->resize.step_height = 14;
+				break;
+
+			case VEH_Ship:
+				w->vscroll.cap = 2;
+				w->hscroll.cap = 3;
+				w->resize.step_width = 90;
+				w->resize.step_height = 24;
+				break;
+
+			case VEH_Aircraft:
+				horizontal = 26;
+				w->vscroll.cap = 2;
+				w->hscroll.cap = 4;
+				w->resize.step_width = 74;
+				w->resize.step_height = 24;
+				break;
+
+			default: NOT_REACHED();
+		}
+
+		SetupStringsForDepotWindow(w, type);
+
+		w->widget[DEPOT_WIDGET_MATRIX].data =
+			(w->vscroll.cap * 0x100) // number of rows to draw on the background
+			+ (type == VEH_Train ? 1 : w->hscroll.cap); // number of boxes in each row. Trains always have just one
+
+		if (type != VEH_Train) {
+			SETBIT(w->hidden_state, DEPOT_WIDGET_H_SCROLL);
+			SETBIT(w->hidden_state, DEPOT_WIDGET_SELL_ALL);
+		}
+
+		/* Move the widgets to their right locations
+		 * Note: it's signed values so negative will make the widget move left and not right, or up instead of down */
+		if (horizontal != 0) {
+			byte i;
+
+			for (i = 0; i < lengthof(left); i++)  w->widget[left[i]].left   += horizontal;
+			for (i = 0; i < lengthof(right); i++) w->widget[right[i]].right += horizontal;
+		}
+
+		if (vertical != 0) {
+			byte i;
+
+			for (i = 0; i < lengthof(top); i++)    w->widget[top[i]].top       += vertical;
+			for (i = 0; i < lengthof(bottom); i++) w->widget[bottom[i]].bottom += vertical;
+		}
+
+		/* We got the widget moved around. Now we will make some widgets to fill the gab between some widgets in equal sizes */
+
+		/* Make the buttons in the bottom equal in size */
+		w->widget[DEPOT_WIDGET_BUILD].right   = w->widget[DEPOT_WIDGET_LOCATION].right / 3;
+		w->widget[DEPOT_WIDGET_LOCATION].left = w->widget[DEPOT_WIDGET_BUILD].right * 2;
+		w->widget[DEPOT_WIDGET_CLONE].left    = w->widget[DEPOT_WIDGET_BUILD].right + 1;
+		w->widget[DEPOT_WIDGET_CLONE].right   = w->widget[DEPOT_WIDGET_LOCATION].left - 1;
+
+		if (type == VEH_Train) {
+			/* Divide the size of DEPOT_WIDGET_SELL into two equally big buttons so DEPOT_WIDGET_SELL and DEPOT_WIDGET_SELL_ALL will get the same size.
+			 * This way it will stay the same even if DEPOT_WIDGET_SELL_ALL is resized for some reason                                                  */
+			w->widget[DEPOT_WIDGET_SELL_ALL].bottom = w->widget[DEPOT_WIDGET_SELL].bottom;
+			w->widget[DEPOT_WIDGET_SELL_ALL].top    = ((w->widget[DEPOT_WIDGET_SELL_ALL].bottom - w->widget[DEPOT_WIDGET_SELL].top) / 2) + w->widget[DEPOT_WIDGET_SELL].top;
+			w->widget[DEPOT_WIDGET_SELL].bottom     = w->widget[DEPOT_WIDGET_SELL_ALL].top - 1;
+		}
+	}
+}