Fix #10490: Allow ships to exit depots if another is not moving at the exit point...

[openttd-github.git] / src / road_gui.cpp

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

/** @file road_gui.cpp GUI for building roads. */

#include "stdafx.h"
#include "gui.h"
#include "window_gui.h"
#include "station_gui.h"
#include "terraform_gui.h"
#include "viewport_func.h"
#include "command_func.h"
#include "road_cmd.h"
#include "station_func.h"
#include "window_func.h"
#include "vehicle_func.h"
#include "sound_func.h"
#include "company_func.h"
#include "tunnelbridge.h"
#include "tunnelbridge_map.h"
#include "tilehighlight_func.h"
#include "company_base.h"
#include "hotkeys.h"
#include "road_gui.h"
#include "zoom_func.h"
#include "engine_base.h"
#include "strings_func.h"
#include "core/geometry_func.hpp"
#include "station_cmd.h"
#include "road_cmd.h"
#include "tunnelbridge_cmd.h"
#include "newgrf_roadstop.h"
#include "querystring_gui.h"
#include "sortlist_type.h"
#include "stringfilter_type.h"
#include "string_func.h"
#include "timer/timer.h"
#include "timer/timer_game_calendar.h"

#include "widgets/road_widget.h"

#include "table/strings.h"

#include "safeguards.h"

static void ShowRVStationPicker(Window *parent, RoadStopType rs);
static void ShowRoadDepotPicker(Window *parent);

static bool _remove_button_clicked;
static bool _one_way_button_clicked;

static Axis _place_road_dir;
static bool _place_road_start_half_x;
static bool _place_road_start_half_y;
static bool _place_road_end_half;

static RoadType _cur_roadtype;

static DiagDirection _road_depot_orientation;

struct RoadStopGUISettings {
        DiagDirection orientation;

        RoadStopClassID roadstop_class;
        uint16_t roadstop_type;
        uint16_t roadstop_count;
};
static RoadStopGUISettings _roadstop_gui_settings;

/**
 * Check whether a road stop type can be built.
 * @return true if building is allowed.
 */
static bool IsRoadStopAvailable(const RoadStopSpec *roadstopspec, StationType type)
{
        if (roadstopspec == nullptr) return true;

        if (HasBit(roadstopspec->flags, RSF_BUILD_MENU_ROAD_ONLY) && !RoadTypeIsRoad(_cur_roadtype)) return false;
        if (HasBit(roadstopspec->flags, RSF_BUILD_MENU_TRAM_ONLY) && !RoadTypeIsTram(_cur_roadtype)) return false;

        if (roadstopspec->stop_type != ROADSTOPTYPE_ALL) {
                switch (type) {
                        case STATION_BUS:   if (roadstopspec->stop_type != ROADSTOPTYPE_PASSENGER) return false; break;
                        case STATION_TRUCK: if (roadstopspec->stop_type != ROADSTOPTYPE_FREIGHT)   return false; break;
                        default: break;
                }
        }

        if (!HasBit(roadstopspec->callback_mask, CBM_ROAD_STOP_AVAIL)) return true;

        uint16_t cb_res = GetRoadStopCallback(CBID_STATION_AVAILABILITY, 0, 0, roadstopspec, nullptr, INVALID_TILE, _cur_roadtype, type, 0);
        if (cb_res == CALLBACK_FAILED) return true;

        return Convert8bitBooleanCallback(roadstopspec->grf_prop.grffile, CBID_STATION_AVAILABILITY, cb_res);
}

void CcPlaySound_CONSTRUCTION_OTHER(Commands, const CommandCost &result, TileIndex tile)
{
        if (result.Succeeded() && _settings_client.sound.confirm) SndPlayTileFx(SND_1F_CONSTRUCTION_OTHER, tile);
}

/**
 * Callback to start placing a bridge.
 * @param tile Start tile of the bridge.
 */
static void PlaceRoad_Bridge(TileIndex tile, Window *w)
{
        if (IsBridgeTile(tile)) {
                TileIndex other_tile = GetOtherTunnelBridgeEnd(tile);
                Point pt = {0, 0};
                w->OnPlaceMouseUp(VPM_X_OR_Y, DDSP_BUILD_BRIDGE, pt, other_tile, tile);
        } else {
                VpStartPlaceSizing(tile, VPM_X_OR_Y, DDSP_BUILD_BRIDGE);
        }
}

/**
 * Callback executed after a build road tunnel command has been called.
 *
 * @param result Whether the build succeeded.
 * @param start_tile Starting tile of the tunnel.
 */
void CcBuildRoadTunnel(Commands, const CommandCost &result, TileIndex start_tile)
{
        if (result.Succeeded()) {
                if (_settings_client.sound.confirm) SndPlayTileFx(SND_1F_CONSTRUCTION_OTHER, start_tile);
                if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();

                DiagDirection start_direction = ReverseDiagDir(GetTunnelBridgeDirection(start_tile));
                ConnectRoadToStructure(start_tile, start_direction);

                TileIndex end_tile = GetOtherTunnelBridgeEnd(start_tile);
                DiagDirection end_direction = ReverseDiagDir(GetTunnelBridgeDirection(end_tile));
                ConnectRoadToStructure(end_tile, end_direction);
        } else {
                SetRedErrorSquare(_build_tunnel_endtile);
        }
}

/**
 * If required, connects a new structure to an existing road or tram by building the missing roadbit.
 * @param tile Tile containing the structure to connect.
 * @param direction Direction to check.
 */
void ConnectRoadToStructure(TileIndex tile, DiagDirection direction)
{
        tile += TileOffsByDiagDir(direction);
        /* if there is a roadpiece just outside of the station entrance, build a connecting route */
        if (IsNormalRoadTile(tile)) {
                if (GetRoadBits(tile, GetRoadTramType(_cur_roadtype)) != ROAD_NONE) {
                        Command<CMD_BUILD_ROAD>::Post(tile, DiagDirToRoadBits(ReverseDiagDir(direction)), _cur_roadtype, DRD_NONE, 0);
                }
        }
}

void CcRoadDepot(Commands, const CommandCost &result, TileIndex tile, RoadType, DiagDirection dir)
{
        if (result.Failed()) return;

        if (_settings_client.sound.confirm) SndPlayTileFx(SND_1F_CONSTRUCTION_OTHER, tile);
        if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
        ConnectRoadToStructure(tile, dir);
}

/**
 * Command callback for building road stops.
 * @param result Result of the build road stop command.
 * @param tile Start tile.
 * @param width Width of the road stop.
 * @param length Length of the road stop.
 * @param is_drive_through False for normal stops, true for drive-through.
 * @param dir Entrance direction (#DiagDirection) for normal stops. Converted to the axis for drive-through stops.
 * @param spec_class Road stop spec class.
 * @param spec_index Road stop spec index.
 * @see CmdBuildRoadStop
 */
void CcRoadStop(Commands, const CommandCost &result, TileIndex tile, uint8_t width, uint8_t length, RoadStopType, bool is_drive_through,
                DiagDirection dir, RoadType, RoadStopClassID spec_class, uint16_t spec_index, StationID, bool)
{
        if (result.Failed()) return;

        if (_settings_client.sound.confirm) SndPlayTileFx(SND_1F_CONSTRUCTION_OTHER, tile);
        if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();

        bool connect_to_road = true;
        if ((uint)spec_class < RoadStopClass::GetClassCount() && spec_index < RoadStopClass::Get(spec_class)->GetSpecCount()) {
                const RoadStopSpec *roadstopspec = RoadStopClass::Get(spec_class)->GetSpec(spec_index);
                if (roadstopspec != nullptr && HasBit(roadstopspec->flags, RSF_NO_AUTO_ROAD_CONNECTION)) connect_to_road = false;
        }

        if (connect_to_road) {
                TileArea roadstop_area(tile, width, length);
                for (TileIndex cur_tile : roadstop_area) {
                        ConnectRoadToStructure(cur_tile, dir);
                        /* For a drive-through road stop build connecting road for other entrance. */
                        if (is_drive_through) ConnectRoadToStructure(cur_tile, ReverseDiagDir(dir));
                }
        }
}

/**
 * Place a new road stop.
 * @param start_tile First tile of the area.
 * @param end_tile Last tile of the area.
 * @param stop_type Type of stop (bus/truck).
 * @param adjacent Allow stations directly adjacent to other stations.
 * @param rt The roadtypes.
 * @param err_msg Error message to show.
 * @see CcRoadStop()
 */
static void PlaceRoadStop(TileIndex start_tile, TileIndex end_tile, RoadStopType stop_type, bool adjacent, RoadType rt, StringID err_msg)
{
        TileArea ta(start_tile, end_tile);
        DiagDirection ddir = _roadstop_gui_settings.orientation;
        bool drive_through = ddir >= DIAGDIR_END;
        if (drive_through) ddir = static_cast<DiagDirection>(ddir - DIAGDIR_END); // Adjust picker result to actual direction.
        RoadStopClassID spec_class = _roadstop_gui_settings.roadstop_class;
        uint16_t spec_index = _roadstop_gui_settings.roadstop_type;

        auto proc = [=](bool test, StationID to_join) -> bool {
                if (test) {
                        return Command<CMD_BUILD_ROAD_STOP>::Do(CommandFlagsToDCFlags(GetCommandFlags<CMD_BUILD_ROAD_STOP>()), ta.tile, ta.w, ta.h, stop_type, drive_through,
                                        ddir, rt, spec_class, spec_index, INVALID_STATION, adjacent).Succeeded();
                } else {
                        return Command<CMD_BUILD_ROAD_STOP>::Post(err_msg, CcRoadStop, ta.tile, ta.w, ta.h, stop_type, drive_through,
                                        ddir, rt, spec_class, spec_index, to_join, adjacent);
                }
        };

        ShowSelectStationIfNeeded(ta, proc);
}

/**
 * Callback for placing a bus station.
 * @param tile Position to place the station.
 */
static void PlaceRoad_BusStation(TileIndex tile)
{
        if (_remove_button_clicked) {
                VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_REMOVE_BUSSTOP);
        } else {
                if (_roadstop_gui_settings.orientation < DIAGDIR_END) { // Not a drive-through stop.
                        VpStartPlaceSizing(tile, (DiagDirToAxis(_roadstop_gui_settings.orientation) == AXIS_X) ? VPM_X_LIMITED : VPM_Y_LIMITED, DDSP_BUILD_BUSSTOP);
                } else {
                        VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED, DDSP_BUILD_BUSSTOP);
                }
                VpSetPlaceSizingLimit(_settings_game.station.station_spread);
        }
}

/**
 * Callback for placing a truck station.
 * @param tile Position to place the station.
 */
static void PlaceRoad_TruckStation(TileIndex tile)
{
        if (_remove_button_clicked) {
                VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_REMOVE_TRUCKSTOP);
        } else {
                if (_roadstop_gui_settings.orientation < DIAGDIR_END) { // Not a drive-through stop.
                        VpStartPlaceSizing(tile, (DiagDirToAxis(_roadstop_gui_settings.orientation) == AXIS_X) ? VPM_X_LIMITED : VPM_Y_LIMITED, DDSP_BUILD_TRUCKSTOP);
                } else {
                        VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED, DDSP_BUILD_TRUCKSTOP);
                }
                VpSetPlaceSizingLimit(_settings_game.station.station_spread);
        }
}

typedef void OnButtonClick(Window *w);

/**
 * Toggles state of the Remove button of Build road toolbar
 * @param w window the button belongs to
 */
static void ToggleRoadButton_Remove(Window *w)
{
        w->ToggleWidgetLoweredState(WID_ROT_REMOVE);
        w->SetWidgetDirty(WID_ROT_REMOVE);
        _remove_button_clicked = w->IsWidgetLowered(WID_ROT_REMOVE);
        SetSelectionRed(_remove_button_clicked);
}

/**
 * Updates the Remove button because of Ctrl state change
 * @param w window the button belongs to
 * @return true iff the remove button was changed
 */
static bool RoadToolbar_CtrlChanged(Window *w)
{
        if (w->IsWidgetDisabled(WID_ROT_REMOVE)) return false;

        /* allow ctrl to switch remove mode only for these widgets */
        for (WidgetID i = WID_ROT_ROAD_X; i <= WID_ROT_AUTOROAD; i++) {
                if (w->IsWidgetLowered(i)) {
                        ToggleRoadButton_Remove(w);
                        return true;
                }
        }

        return false;
}

/** Road toolbar window handler. */
struct BuildRoadToolbarWindow : Window {
        RoadType roadtype;          ///< Road type to build.
        const RoadTypeInfo *rti;    ///< Information about current road type
        int last_started_action;    ///< Last started user action.

        BuildRoadToolbarWindow(WindowDesc *desc, WindowNumber window_number) : Window(desc)
        {
                this->Initialize(_cur_roadtype);
                this->InitNested(window_number);
                this->SetupRoadToolbar();
                this->SetWidgetDisabledState(WID_ROT_REMOVE, true);

                if (RoadTypeIsRoad(this->roadtype)) {
                        this->SetWidgetDisabledState(WID_ROT_ONE_WAY, true);
                }

                this->OnInvalidateData();
                this->last_started_action = INVALID_WID_ROT;

                if (_settings_client.gui.link_terraform_toolbar) ShowTerraformToolbar(this);
        }

        void Close([[maybe_unused]] int data = 0) override
        {
                if (_game_mode == GM_NORMAL && (this->IsWidgetLowered(WID_ROT_BUS_STATION) || this->IsWidgetLowered(WID_ROT_TRUCK_STATION))) SetViewportCatchmentStation(nullptr, true);
                if (_settings_client.gui.link_terraform_toolbar) CloseWindowById(WC_SCEN_LAND_GEN, 0, false);
                this->Window::Close();
        }

        /**
         * Some data on this window has become invalid.
         * @param data Information about the changed data.
         * @param gui_scope Whether the call is done from GUI scope. You may not do everything when not in GUI scope. See #InvalidateWindowData() for details.
         */
        void OnInvalidateData([[maybe_unused]] int data = 0, [[maybe_unused]] bool gui_scope = true) override
        {
                if (!gui_scope) return;
                RoadTramType rtt = GetRoadTramType(this->roadtype);

                bool can_build = CanBuildVehicleInfrastructure(VEH_ROAD, rtt);
                this->SetWidgetsDisabledState(!can_build,
                        WID_ROT_DEPOT,
                        WID_ROT_BUS_STATION,
                        WID_ROT_TRUCK_STATION);
                if (!can_build) {
                        CloseWindowById(WC_BUS_STATION, TRANSPORT_ROAD);
                        CloseWindowById(WC_TRUCK_STATION, TRANSPORT_ROAD);
                        CloseWindowById(WC_BUILD_DEPOT, TRANSPORT_ROAD);
                }

                if (_game_mode != GM_EDITOR) {
                        if (!can_build) {
                                /* Show in the tooltip why this button is disabled. */
                                this->GetWidget<NWidgetCore>(WID_ROT_DEPOT)->SetToolTip(STR_TOOLBAR_DISABLED_NO_VEHICLE_AVAILABLE);
                                this->GetWidget<NWidgetCore>(WID_ROT_BUS_STATION)->SetToolTip(STR_TOOLBAR_DISABLED_NO_VEHICLE_AVAILABLE);
                                this->GetWidget<NWidgetCore>(WID_ROT_TRUCK_STATION)->SetToolTip(STR_TOOLBAR_DISABLED_NO_VEHICLE_AVAILABLE);
                        } else {
                                this->GetWidget<NWidgetCore>(WID_ROT_DEPOT)->SetToolTip(rtt == RTT_ROAD ? STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_VEHICLE_DEPOT : STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAM_VEHICLE_DEPOT);
                                this->GetWidget<NWidgetCore>(WID_ROT_BUS_STATION)->SetToolTip(rtt == RTT_ROAD ? STR_ROAD_TOOLBAR_TOOLTIP_BUILD_BUS_STATION : STR_ROAD_TOOLBAR_TOOLTIP_BUILD_PASSENGER_TRAM_STATION);
                                this->GetWidget<NWidgetCore>(WID_ROT_TRUCK_STATION)->SetToolTip(rtt == RTT_ROAD ? STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRUCK_LOADING_BAY : STR_ROAD_TOOLBAR_TOOLTIP_BUILD_CARGO_TRAM_STATION);
                        }
                }
        }

        void Initialize(RoadType roadtype)
        {
                assert(roadtype < ROADTYPE_END);
                this->roadtype = roadtype;
                this->rti = GetRoadTypeInfo(this->roadtype);
        }

        /**
         * Configures the road toolbar for roadtype given
         * @param roadtype the roadtype to display
         */
        void SetupRoadToolbar()
        {
                this->GetWidget<NWidgetCore>(WID_ROT_ROAD_X)->widget_data = rti->gui_sprites.build_x_road;
                this->GetWidget<NWidgetCore>(WID_ROT_ROAD_Y)->widget_data = rti->gui_sprites.build_y_road;
                this->GetWidget<NWidgetCore>(WID_ROT_AUTOROAD)->widget_data = rti->gui_sprites.auto_road;
                if (_game_mode != GM_EDITOR) {
                        this->GetWidget<NWidgetCore>(WID_ROT_DEPOT)->widget_data = rti->gui_sprites.build_depot;
                }
                this->GetWidget<NWidgetCore>(WID_ROT_CONVERT_ROAD)->widget_data = rti->gui_sprites.convert_road;
                this->GetWidget<NWidgetCore>(WID_ROT_BUILD_TUNNEL)->widget_data = rti->gui_sprites.build_tunnel;
        }

        /**
         * Switch to another road type.
         * @param roadtype New road type.
         */
        void ModifyRoadType(RoadType roadtype)
        {
                this->Initialize(roadtype);
                this->SetupRoadToolbar();
                this->ReInit();
        }

        void SetStringParameters(WidgetID widget) const override
        {
                if (widget == WID_ROT_CAPTION) {
                        if (this->rti->max_speed > 0) {
                                SetDParam(0, STR_TOOLBAR_RAILTYPE_VELOCITY);
                                SetDParam(1, this->rti->strings.toolbar_caption);
                                SetDParam(2, PackVelocity(this->rti->max_speed / 2, VEH_ROAD));
                        } else {
                                SetDParam(0, this->rti->strings.toolbar_caption);
                        }
                }
        }

        /**
         * Update the remove button lowered state of the road toolbar
         *
         * @param clicked_widget The widget which the client clicked just now
         */
        void UpdateOptionWidgetStatus(RoadToolbarWidgets clicked_widget)
        {
                /* The remove and the one way button state is driven
                 * by the other buttons so they don't act on themselves.
                 * Both are only valid if they are able to apply as options. */
                switch (clicked_widget) {
                        case WID_ROT_REMOVE:
                                if (RoadTypeIsRoad(this->roadtype)) {
                                        this->RaiseWidget(WID_ROT_ONE_WAY);
                                        this->SetWidgetDirty(WID_ROT_ONE_WAY);
                                }

                                break;

                        case WID_ROT_ONE_WAY:
                                this->RaiseWidget(WID_ROT_REMOVE);
                                this->SetWidgetDirty(WID_ROT_REMOVE);
                                break;

                        case WID_ROT_BUS_STATION:
                        case WID_ROT_TRUCK_STATION:
                                if (RoadTypeIsRoad(this->roadtype)) this->DisableWidget(WID_ROT_ONE_WAY);
                                this->SetWidgetDisabledState(WID_ROT_REMOVE, !this->IsWidgetLowered(clicked_widget));
                                break;

                        case WID_ROT_ROAD_X:
                        case WID_ROT_ROAD_Y:
                        case WID_ROT_AUTOROAD:
                                this->SetWidgetDisabledState(WID_ROT_REMOVE, !this->IsWidgetLowered(clicked_widget));
                                if (RoadTypeIsRoad(this->roadtype)) {
                                        this->SetWidgetDisabledState(WID_ROT_ONE_WAY, !this->IsWidgetLowered(clicked_widget));
                                }
                                break;

                        default:
                                /* When any other buttons than road/station, raise and
                                 * disable the removal button */
                                this->SetWidgetDisabledState(WID_ROT_REMOVE, true);
                                this->SetWidgetLoweredState(WID_ROT_REMOVE, false);

                                if (RoadTypeIsRoad(this->roadtype)) {
                                        this->SetWidgetDisabledState(WID_ROT_ONE_WAY, true);
                                        this->SetWidgetLoweredState(WID_ROT_ONE_WAY, false);
                                }

                                break;
                }
        }

        void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
        {
                _remove_button_clicked = false;
                _one_way_button_clicked = false;
                switch (widget) {
                        case WID_ROT_ROAD_X:
                                HandlePlacePushButton(this, WID_ROT_ROAD_X, this->rti->cursor.road_nwse, HT_RECT);
                                this->last_started_action = widget;
                                break;

                        case WID_ROT_ROAD_Y:
                                HandlePlacePushButton(this, WID_ROT_ROAD_Y, this->rti->cursor.road_swne, HT_RECT);
                                this->last_started_action = widget;
                                break;

                        case WID_ROT_AUTOROAD:
                                HandlePlacePushButton(this, WID_ROT_AUTOROAD, this->rti->cursor.autoroad, HT_RECT);
                                this->last_started_action = widget;
                                break;

                        case WID_ROT_DEMOLISH:
                                HandlePlacePushButton(this, WID_ROT_DEMOLISH, ANIMCURSOR_DEMOLISH, HT_RECT | HT_DIAGONAL);
                                this->last_started_action = widget;
                                break;

                        case WID_ROT_DEPOT:
                                if (HandlePlacePushButton(this, WID_ROT_DEPOT, this->rti->cursor.depot, HT_RECT)) {
                                        ShowRoadDepotPicker(this);
                                        this->last_started_action = widget;
                                }
                                break;

                        case WID_ROT_BUS_STATION:
                                if (HandlePlacePushButton(this, WID_ROT_BUS_STATION, SPR_CURSOR_BUS_STATION, HT_RECT)) {
                                        ShowRVStationPicker(this, ROADSTOP_BUS);
                                        this->last_started_action = widget;
                                }
                                break;

                        case WID_ROT_TRUCK_STATION:
                                if (HandlePlacePushButton(this, WID_ROT_TRUCK_STATION, SPR_CURSOR_TRUCK_STATION, HT_RECT)) {
                                        ShowRVStationPicker(this, ROADSTOP_TRUCK);
                                        this->last_started_action = widget;
                                }
                                break;

                        case WID_ROT_ONE_WAY:
                                if (this->IsWidgetDisabled(WID_ROT_ONE_WAY)) return;
                                this->SetDirty();
                                this->ToggleWidgetLoweredState(WID_ROT_ONE_WAY);
                                SetSelectionRed(false);
                                break;

                        case WID_ROT_BUILD_BRIDGE:
                                HandlePlacePushButton(this, WID_ROT_BUILD_BRIDGE, SPR_CURSOR_BRIDGE, HT_RECT);
                                this->last_started_action = widget;
                                break;

                        case WID_ROT_BUILD_TUNNEL:
                                HandlePlacePushButton(this, WID_ROT_BUILD_TUNNEL, this->rti->cursor.tunnel, HT_SPECIAL);
                                this->last_started_action = widget;
                                break;

                        case WID_ROT_REMOVE:
                                if (this->IsWidgetDisabled(WID_ROT_REMOVE)) return;

                                CloseWindowById(WC_SELECT_STATION, 0);
                                ToggleRoadButton_Remove(this);
                                if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
                                break;

                        case WID_ROT_CONVERT_ROAD:
                                HandlePlacePushButton(this, WID_ROT_CONVERT_ROAD, this->rti->cursor.convert_road, HT_RECT);
                                this->last_started_action = widget;
                                break;

                        default: NOT_REACHED();
                }
                this->UpdateOptionWidgetStatus((RoadToolbarWidgets)widget);
                if (_ctrl_pressed) RoadToolbar_CtrlChanged(this);
        }

        EventState OnHotkey(int hotkey) override
        {
                MarkTileDirtyByTile(TileVirtXY(_thd.pos.x, _thd.pos.y)); // redraw tile selection
                return Window::OnHotkey(hotkey);
        }

        void OnPlaceObject([[maybe_unused]] Point pt, TileIndex tile) override
        {
                _remove_button_clicked = this->IsWidgetLowered(WID_ROT_REMOVE);
                _one_way_button_clicked = RoadTypeIsRoad(this->roadtype) ? this->IsWidgetLowered(WID_ROT_ONE_WAY) : false;
                switch (this->last_started_action) {
                        case WID_ROT_ROAD_X:
                                _place_road_dir = AXIS_X;
                                _place_road_start_half_x = _tile_fract_coords.x >= 8;
                                VpStartPlaceSizing(tile, VPM_FIX_Y, DDSP_PLACE_ROAD_X_DIR);
                                break;

                        case WID_ROT_ROAD_Y:
                                _place_road_dir = AXIS_Y;
                                _place_road_start_half_y = _tile_fract_coords.y >= 8;
                                VpStartPlaceSizing(tile, VPM_FIX_X, DDSP_PLACE_ROAD_Y_DIR);
                                break;

                        case WID_ROT_AUTOROAD:
                                _place_road_dir = INVALID_AXIS;
                                _place_road_start_half_x = _tile_fract_coords.x >= 8;
                                _place_road_start_half_y = _tile_fract_coords.y >= 8;
                                VpStartPlaceSizing(tile, VPM_X_OR_Y, DDSP_PLACE_AUTOROAD);
                                break;

                        case WID_ROT_DEMOLISH:
                                PlaceProc_DemolishArea(tile);
                                break;

                        case WID_ROT_DEPOT:
                                Command<CMD_BUILD_ROAD_DEPOT>::Post(this->rti->strings.err_depot, CcRoadDepot,
                                                tile, _cur_roadtype, _road_depot_orientation);
                                break;

                        case WID_ROT_BUS_STATION:
                                PlaceRoad_BusStation(tile);
                                break;

                        case WID_ROT_TRUCK_STATION:
                                PlaceRoad_TruckStation(tile);
                                break;

                        case WID_ROT_BUILD_BRIDGE:
                                PlaceRoad_Bridge(tile, this);
                                break;

                        case WID_ROT_BUILD_TUNNEL:
                                Command<CMD_BUILD_TUNNEL>::Post(STR_ERROR_CAN_T_BUILD_TUNNEL_HERE, CcBuildRoadTunnel,
                                                tile, TRANSPORT_ROAD, _cur_roadtype);
                                break;

                        case WID_ROT_CONVERT_ROAD:
                                VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_CONVERT_ROAD);
                                break;

                        default: NOT_REACHED();
                }
        }

        void OnPlaceObjectAbort() override
        {
                if (_game_mode != GM_EDITOR && (this->IsWidgetLowered(WID_ROT_BUS_STATION) || this->IsWidgetLowered(WID_ROT_TRUCK_STATION))) SetViewportCatchmentStation(nullptr, true);

                this->RaiseButtons();
                this->SetWidgetDisabledState(WID_ROT_REMOVE, true);
                this->SetWidgetDirty(WID_ROT_REMOVE);

                if (RoadTypeIsRoad(this->roadtype)) {
                        this->SetWidgetDisabledState(WID_ROT_ONE_WAY, true);
                        this->SetWidgetDirty(WID_ROT_ONE_WAY);
                }

                CloseWindowById(WC_BUS_STATION, TRANSPORT_ROAD);
                CloseWindowById(WC_TRUCK_STATION, TRANSPORT_ROAD);
                CloseWindowById(WC_BUILD_DEPOT, TRANSPORT_ROAD);
                CloseWindowById(WC_SELECT_STATION, 0);
                CloseWindowByClass(WC_BUILD_BRIDGE);
        }

        void OnPlaceDrag(ViewportPlaceMethod select_method, [[maybe_unused]] ViewportDragDropSelectionProcess select_proc, [[maybe_unused]] Point pt) override
        {
                /* Here we update the end tile flags
                 * of the road placement actions.
                 * At first we reset the end halfroad
                 * bits and if needed we set them again. */
                switch (select_proc) {
                        case DDSP_PLACE_ROAD_X_DIR:
                                _place_road_end_half = pt.x & 8;
                                break;

                        case DDSP_PLACE_ROAD_Y_DIR:
                                _place_road_end_half = pt.y & 8;
                                break;

                        case DDSP_PLACE_AUTOROAD:
                                /* For autoroad we need to update the
                                 * direction of the road */
                                if (_thd.size.x > _thd.size.y || (_thd.size.x == _thd.size.y &&
                                                ( (_tile_fract_coords.x < _tile_fract_coords.y && (_tile_fract_coords.x + _tile_fract_coords.y) < 16) ||
                                                (_tile_fract_coords.x > _tile_fract_coords.y && (_tile_fract_coords.x + _tile_fract_coords.y) > 16) ))) {
                                        /* Set dir = X */
                                        _place_road_dir = AXIS_X;
                                        _place_road_end_half = pt.x & 8;
                                } else {
                                        /* Set dir = Y */
                                        _place_road_dir = AXIS_Y;
                                        _place_road_end_half = pt.y & 8;
                                }

                                break;

                        default:
                                break;
                }

                VpSelectTilesWithMethod(pt.x, pt.y, select_method);
        }

        void OnPlaceMouseUp([[maybe_unused]] ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, [[maybe_unused]] Point pt, TileIndex start_tile, TileIndex end_tile) override
        {
                if (pt.x != -1) {
                        switch (select_proc) {
                                default: NOT_REACHED();
                                case DDSP_BUILD_BRIDGE:
                                        if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
                                        ShowBuildBridgeWindow(start_tile, end_tile, TRANSPORT_ROAD, _cur_roadtype);
                                        break;

                                case DDSP_DEMOLISH_AREA:
                                        GUIPlaceProcDragXY(select_proc, start_tile, end_tile);
                                        break;

                                case DDSP_PLACE_ROAD_X_DIR:
                                case DDSP_PLACE_ROAD_Y_DIR:
                                case DDSP_PLACE_AUTOROAD: {
                                        bool start_half = _place_road_dir == AXIS_Y ? _place_road_start_half_y : _place_road_start_half_x;

                                        if (_remove_button_clicked) {
                                                Command<CMD_REMOVE_LONG_ROAD>::Post(this->rti->strings.err_remove_road, CcPlaySound_CONSTRUCTION_OTHER,
                                                                end_tile, start_tile, _cur_roadtype, _place_road_dir, start_half, _place_road_end_half);
                                        } else {
                                                Command<CMD_BUILD_LONG_ROAD>::Post(this->rti->strings.err_build_road, CcPlaySound_CONSTRUCTION_OTHER,
                                                                end_tile, start_tile, _cur_roadtype, _place_road_dir, _one_way_button_clicked ? DRD_NORTHBOUND : DRD_NONE, start_half, _place_road_end_half, false);
                                        }
                                        break;
                                }

                                case DDSP_BUILD_BUSSTOP:
                                case DDSP_REMOVE_BUSSTOP:
                                        if (this->IsWidgetLowered(WID_ROT_BUS_STATION) && GetIfClassHasNewStopsByType(RoadStopClass::Get(_roadstop_gui_settings.roadstop_class), ROADSTOP_BUS, _cur_roadtype)) {
                                                if (_remove_button_clicked) {
                                                        TileArea ta(start_tile, end_tile);
                                                        Command<CMD_REMOVE_ROAD_STOP>::Post(this->rti->strings.err_remove_station[ROADSTOP_BUS], CcPlaySound_CONSTRUCTION_OTHER, ta.tile, ta.w, ta.h, ROADSTOP_BUS, _ctrl_pressed);
                                                } else {
                                                        PlaceRoadStop(start_tile, end_tile, ROADSTOP_BUS, _ctrl_pressed, _cur_roadtype, this->rti->strings.err_build_station[ROADSTOP_BUS]);
                                                }
                                        }
                                        break;

                                case DDSP_BUILD_TRUCKSTOP:
                                case DDSP_REMOVE_TRUCKSTOP:
                                        if (this->IsWidgetLowered(WID_ROT_TRUCK_STATION) && GetIfClassHasNewStopsByType(RoadStopClass::Get(_roadstop_gui_settings.roadstop_class), ROADSTOP_TRUCK, _cur_roadtype)) {
                                                if (_remove_button_clicked) {
                                                        TileArea ta(start_tile, end_tile);
                                                        Command<CMD_REMOVE_ROAD_STOP>::Post(this->rti->strings.err_remove_station[ROADSTOP_TRUCK], CcPlaySound_CONSTRUCTION_OTHER, ta.tile, ta.w, ta.h, ROADSTOP_TRUCK, _ctrl_pressed);
                                                } else {
                                                        PlaceRoadStop(start_tile, end_tile, ROADSTOP_TRUCK, _ctrl_pressed, _cur_roadtype, this->rti->strings.err_build_station[ROADSTOP_TRUCK]);
                                                }
                                        }
                                        break;

                                case DDSP_CONVERT_ROAD:
                                        Command<CMD_CONVERT_ROAD>::Post(rti->strings.err_convert_road, CcPlaySound_CONSTRUCTION_OTHER, end_tile, start_tile, _cur_roadtype);
                                        break;
                        }
                }
        }

        void OnPlacePresize([[maybe_unused]] Point pt, TileIndex tile) override
        {
                Command<CMD_BUILD_TUNNEL>::Do(DC_AUTO, tile, TRANSPORT_ROAD, _cur_roadtype);
                VpSetPresizeRange(tile, _build_tunnel_endtile == 0 ? tile : _build_tunnel_endtile);
        }

        EventState OnCTRLStateChange() override
        {
                if (RoadToolbar_CtrlChanged(this)) return ES_HANDLED;
                return ES_NOT_HANDLED;
        }

        /**
         * Handler for global hotkeys of the BuildRoadToolbarWindow.
         * @param hotkey Hotkey
         * @param last_build Last build road type
         * @return ES_HANDLED if hotkey was accepted.
         */
        static EventState RoadTramToolbarGlobalHotkeys(int hotkey, RoadType last_build, RoadTramType rtt)
        {
                Window *w = nullptr;
                switch (_game_mode) {
                        case GM_NORMAL:
                                w = ShowBuildRoadToolbar(last_build);
                                break;

                        case GM_EDITOR:
                                if ((GetRoadTypes(true) & ((rtt == RTT_ROAD) ? ~_roadtypes_type : _roadtypes_type)) == ROADTYPES_NONE) return ES_NOT_HANDLED;
                                w = ShowBuildRoadScenToolbar(last_build);
                                break;

                        default:
                                break;
                }

                if (w == nullptr) return ES_NOT_HANDLED;
                return w->OnHotkey(hotkey);
        }

        static EventState RoadToolbarGlobalHotkeys(int hotkey)
        {
                extern RoadType _last_built_roadtype;
                return RoadTramToolbarGlobalHotkeys(hotkey, _last_built_roadtype, RTT_ROAD);
        }

        static EventState TramToolbarGlobalHotkeys(int hotkey)
        {
                extern RoadType _last_built_tramtype;
                return RoadTramToolbarGlobalHotkeys(hotkey, _last_built_tramtype, RTT_TRAM);
        }

        static inline HotkeyList road_hotkeys{"roadtoolbar", {
                Hotkey('1', "build_x", WID_ROT_ROAD_X),
                Hotkey('2', "build_y", WID_ROT_ROAD_Y),
                Hotkey('3', "autoroad", WID_ROT_AUTOROAD),
                Hotkey('4', "demolish", WID_ROT_DEMOLISH),
                Hotkey('5', "depot", WID_ROT_DEPOT),
                Hotkey('6', "bus_station", WID_ROT_BUS_STATION),
                Hotkey('7', "truck_station", WID_ROT_TRUCK_STATION),
                Hotkey('8', "oneway", WID_ROT_ONE_WAY),
                Hotkey('B', "bridge", WID_ROT_BUILD_BRIDGE),
                Hotkey('T', "tunnel", WID_ROT_BUILD_TUNNEL),
                Hotkey('R', "remove", WID_ROT_REMOVE),
                Hotkey('C', "convert", WID_ROT_CONVERT_ROAD),
        }, RoadToolbarGlobalHotkeys};

        static inline HotkeyList tram_hotkeys{"tramtoolbar", {
                Hotkey('1', "build_x", WID_ROT_ROAD_X),
                Hotkey('2', "build_y", WID_ROT_ROAD_Y),
                Hotkey('3', "autoroad", WID_ROT_AUTOROAD),
                Hotkey('4', "demolish", WID_ROT_DEMOLISH),
                Hotkey('5', "depot", WID_ROT_DEPOT),
                Hotkey('6', "bus_station", WID_ROT_BUS_STATION),
                Hotkey('7', "truck_station", WID_ROT_TRUCK_STATION),
                Hotkey('B', "bridge", WID_ROT_BUILD_BRIDGE),
                Hotkey('T', "tunnel", WID_ROT_BUILD_TUNNEL),
                Hotkey('R', "remove", WID_ROT_REMOVE),
                Hotkey('C', "convert", WID_ROT_CONVERT_ROAD),
        }, TramToolbarGlobalHotkeys};
};

static constexpr NWidgetPart _nested_build_road_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_ROT_CAPTION), SetDataTip(STR_JUST_STRING2, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), SetTextStyle(TC_WHITE),
                NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
        EndContainer(),
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_X),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_X_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_Y),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_Y_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_AUTOROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOROAD, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOROAD),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_DEMOLISH),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_DEPOT),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_DEPOT, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_VEHICLE_DEPOT),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUS_STATION),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_BUS_STATION, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_BUS_STATION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_TRUCK_STATION),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_TRUCK_BAY, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRUCK_LOADING_BAY),
                NWidget(WWT_PANEL, COLOUR_DARK_GREEN, -1), SetMinimalSize(0, 22), SetFill(1, 1), EndContainer(),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ONE_WAY),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_ONE_WAY, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_ONE_WAY_ROAD),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_BRIDGE),
                                                SetFill(0, 1), SetMinimalSize(43, 22), SetDataTip(SPR_IMG_BRIDGE, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_BRIDGE),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_TUNNEL),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_TUNNEL, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_TUNNEL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_REMOVE),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_ROAD),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_CONVERT_ROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_CONVERT_ROAD, STR_ROAD_TOOLBAR_TOOLTIP_CONVERT_ROAD),
        EndContainer(),
};

static WindowDesc _build_road_desc(__FILE__, __LINE__,
        WDP_ALIGN_TOOLBAR, "toolbar_road", 0, 0,
        WC_BUILD_TOOLBAR, WC_NONE,
        WDF_CONSTRUCTION,
        std::begin(_nested_build_road_widgets), std::end(_nested_build_road_widgets),
        &BuildRoadToolbarWindow::road_hotkeys
);

static constexpr NWidgetPart _nested_build_tramway_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_ROT_CAPTION), SetDataTip(STR_JUST_STRING2, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), SetTextStyle(TC_WHITE),
                NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
        EndContainer(),
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_X),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_TRAMWAY_X_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_Y),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_TRAMWAY_Y_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_AUTOROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOTRAM, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOTRAM),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_DEMOLISH),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_DEPOT),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_DEPOT, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAM_VEHICLE_DEPOT),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUS_STATION),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_BUS_STATION, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_PASSENGER_TRAM_STATION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_TRUCK_STATION),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_TRUCK_BAY, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_CARGO_TRAM_STATION),
                NWidget(WWT_PANEL, COLOUR_DARK_GREEN, -1), SetMinimalSize(0, 22), SetFill(1, 1), EndContainer(),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_BRIDGE),
                                                SetFill(0, 1), SetMinimalSize(43, 22), SetDataTip(SPR_IMG_BRIDGE, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_BRIDGE),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_TUNNEL),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_TUNNEL, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_TUNNEL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_REMOVE),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_TRAMWAYS),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_CONVERT_ROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_CONVERT_ROAD, STR_ROAD_TOOLBAR_TOOLTIP_CONVERT_TRAM),
        EndContainer(),
};

static WindowDesc _build_tramway_desc(__FILE__, __LINE__,
        WDP_ALIGN_TOOLBAR, "toolbar_tramway", 0, 0,
        WC_BUILD_TOOLBAR, WC_NONE,
        WDF_CONSTRUCTION,
        std::begin(_nested_build_tramway_widgets), std::end(_nested_build_tramway_widgets),
        &BuildRoadToolbarWindow::tram_hotkeys
);

/**
 * Open the build road toolbar window
 *
 * If the terraform toolbar is linked to the toolbar, that window is also opened.
 *
 * @return newly opened road toolbar, or nullptr if the toolbar could not be opened.
 */
Window *ShowBuildRoadToolbar(RoadType roadtype)
{
        if (!Company::IsValidID(_local_company)) return nullptr;
        if (!ValParamRoadType(roadtype)) return nullptr;

        CloseWindowByClass(WC_BUILD_TOOLBAR);
        _cur_roadtype = roadtype;

        return AllocateWindowDescFront<BuildRoadToolbarWindow>(RoadTypeIsRoad(_cur_roadtype) ? &_build_road_desc : &_build_tramway_desc, TRANSPORT_ROAD);
}

static constexpr NWidgetPart _nested_build_road_scen_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_ROT_CAPTION), SetDataTip(STR_JUST_STRING2, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), SetTextStyle(TC_WHITE),
                NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
        EndContainer(),
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_X),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_X_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_Y),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_Y_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_AUTOROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOROAD, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOROAD),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_DEMOLISH),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
                NWidget(WWT_PANEL, COLOUR_DARK_GREEN, -1), SetMinimalSize(0, 22), SetFill(1, 1), EndContainer(),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ONE_WAY),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_ONE_WAY, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_ONE_WAY_ROAD),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_BRIDGE),
                                                SetFill(0, 1), SetMinimalSize(43, 22), SetDataTip(SPR_IMG_BRIDGE, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_BRIDGE),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_TUNNEL),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_TUNNEL, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_ROAD_TUNNEL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_REMOVE),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_ROAD),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_CONVERT_ROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_CONVERT_ROAD, STR_ROAD_TOOLBAR_TOOLTIP_CONVERT_ROAD),
        EndContainer(),
};

static WindowDesc _build_road_scen_desc(__FILE__, __LINE__,
        WDP_AUTO, "toolbar_road_scen", 0, 0,
        WC_SCEN_BUILD_TOOLBAR, WC_NONE,
        WDF_CONSTRUCTION,
        std::begin(_nested_build_road_scen_widgets), std::end(_nested_build_road_scen_widgets),
        &BuildRoadToolbarWindow::road_hotkeys
);

static constexpr NWidgetPart _nested_build_tramway_scen_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_ROT_CAPTION), SetDataTip(STR_JUST_STRING2, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS), SetTextStyle(TC_WHITE),
                NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
        EndContainer(),
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_X),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_TRAMWAY_X_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_ROAD_Y),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_TRAMWAY_Y_DIR, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_SECTION),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_AUTOROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOTRAM, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOTRAM),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_DEMOLISH),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
                NWidget(WWT_PANEL, COLOUR_DARK_GREEN, -1), SetMinimalSize(0, 22), SetFill(1, 1), EndContainer(),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_BRIDGE),
                                                SetFill(0, 1), SetMinimalSize(43, 22), SetDataTip(SPR_IMG_BRIDGE, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_BRIDGE),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_BUILD_TUNNEL),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_ROAD_TUNNEL, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_TRAMWAY_TUNNEL),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_REMOVE),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_TRAMWAYS),
                NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_ROT_CONVERT_ROAD),
                                                SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_CONVERT_ROAD, STR_ROAD_TOOLBAR_TOOLTIP_CONVERT_TRAM),
        EndContainer(),
};

static WindowDesc _build_tramway_scen_desc(__FILE__, __LINE__,
        WDP_AUTO, "toolbar_tram_scen", 0, 0,
        WC_SCEN_BUILD_TOOLBAR, WC_NONE,
        WDF_CONSTRUCTION,
        std::begin(_nested_build_tramway_scen_widgets), std::end(_nested_build_tramway_scen_widgets),
        &BuildRoadToolbarWindow::tram_hotkeys
);

/**
 * Show the road building toolbar in the scenario editor.
 * @return The just opened toolbar, or \c nullptr if the toolbar was already open.
 */
Window *ShowBuildRoadScenToolbar(RoadType roadtype)
{
        CloseWindowById(WC_SCEN_BUILD_TOOLBAR, TRANSPORT_ROAD);
        _cur_roadtype = roadtype;

        return AllocateWindowDescFront<BuildRoadToolbarWindow>(RoadTypeIsRoad(_cur_roadtype) ? &_build_road_scen_desc : &_build_tramway_scen_desc, TRANSPORT_ROAD);
}

struct BuildRoadDepotWindow : public PickerWindowBase {
        BuildRoadDepotWindow(WindowDesc *desc, Window *parent) : PickerWindowBase(desc, parent)
        {
                this->CreateNestedTree();

                this->LowerWidget(WID_BROD_DEPOT_NE + _road_depot_orientation);
                if (RoadTypeIsTram(_cur_roadtype)) {
                        this->GetWidget<NWidgetCore>(WID_BROD_CAPTION)->widget_data = STR_BUILD_DEPOT_TRAM_ORIENTATION_CAPTION;
                        for (WidgetID i = WID_BROD_DEPOT_NE; i <= WID_BROD_DEPOT_NW; i++) {
                                this->GetWidget<NWidgetCore>(i)->tool_tip = STR_BUILD_DEPOT_TRAM_ORIENTATION_SELECT_TOOLTIP;
                        }
                }

                this->FinishInitNested(TRANSPORT_ROAD);
        }

        void UpdateWidgetSize(WidgetID widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
        {
                if (!IsInsideMM(widget, WID_BROD_DEPOT_NE, WID_BROD_DEPOT_NW + 1)) return;

                size->width  = ScaleGUITrad(64) + WidgetDimensions::scaled.fullbevel.Horizontal();
                size->height = ScaleGUITrad(48) + WidgetDimensions::scaled.fullbevel.Vertical();
        }

        void DrawWidget(const Rect &r, WidgetID widget) const override
        {
                if (!IsInsideMM(widget, WID_BROD_DEPOT_NE, WID_BROD_DEPOT_NW + 1)) return;

                DrawPixelInfo tmp_dpi;
                Rect ir = r.Shrink(WidgetDimensions::scaled.bevel);
                if (FillDrawPixelInfo(&tmp_dpi, ir)) {
                        AutoRestoreBackup dpi_backup(_cur_dpi, &tmp_dpi);
                        int x = (ir.Width()  - ScaleSpriteTrad(64)) / 2 + ScaleSpriteTrad(31);
                        int y = (ir.Height() + ScaleSpriteTrad(48)) / 2 - ScaleSpriteTrad(31);
                        DrawRoadDepotSprite(x, y, (DiagDirection)(widget - WID_BROD_DEPOT_NE + DIAGDIR_NE), _cur_roadtype);
                }
        }

        void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
        {
                switch (widget) {
                        case WID_BROD_DEPOT_NW:
                        case WID_BROD_DEPOT_NE:
                        case WID_BROD_DEPOT_SW:
                        case WID_BROD_DEPOT_SE:
                                this->RaiseWidget(WID_BROD_DEPOT_NE + _road_depot_orientation);
                                _road_depot_orientation = (DiagDirection)(widget - WID_BROD_DEPOT_NE);
                                this->LowerWidget(WID_BROD_DEPOT_NE + _road_depot_orientation);
                                if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
                                this->SetDirty();
                                break;

                        default:
                                break;
                }
        }
};

static constexpr NWidgetPart _nested_build_road_depot_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_BROD_CAPTION), SetDataTip(STR_BUILD_DEPOT_ROAD_ORIENTATION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
        EndContainer(),
        NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
                NWidget(NWID_HORIZONTAL_LTR), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1), SetPadding(WidgetDimensions::unscaled.picker),
                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_normal, 0),
                                NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROD_DEPOT_NW), SetMinimalSize(66, 50), SetFill(0, 0), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
                                NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROD_DEPOT_SW), SetMinimalSize(66, 50), SetFill(0, 0), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
                        EndContainer(),
                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_normal, 0),
                                NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROD_DEPOT_NE), SetMinimalSize(66, 50), SetFill(0, 0), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
                                NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROD_DEPOT_SE), SetMinimalSize(66, 50), SetFill(0, 0), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
                        EndContainer(),
                EndContainer(),
        EndContainer(),
};

static WindowDesc _build_road_depot_desc(__FILE__, __LINE__,
        WDP_AUTO, nullptr, 0, 0,
        WC_BUILD_DEPOT, WC_BUILD_TOOLBAR,
        WDF_CONSTRUCTION,
        std::begin(_nested_build_road_depot_widgets), std::end(_nested_build_road_depot_widgets)
);

static void ShowRoadDepotPicker(Window *parent)
{
        new BuildRoadDepotWindow(&_build_road_depot_desc, parent);
}

/** Enum referring to the Hotkeys in the build road stop window */
enum BuildRoadStopHotkeys {
        BROSHK_FOCUS_FILTER_BOX, ///< Focus the edit box for editing the filter string
};

struct BuildRoadStationWindow : public PickerWindowBase {
private:
        RoadStopType roadStopType; ///< The RoadStopType for this Window.
        uint line_height; ///< Height of a single line in the newstation selection matrix.
        uint coverage_height; ///< Height of the coverage texts.
        Scrollbar *vscrollList; ///< Vertical scrollbar of the new station list.
        Scrollbar *vscrollMatrix; ///< Vertical scrollbar of the station picker matrix.

        typedef GUIList<RoadStopClassID, std::nullptr_t, StringFilter &> GUIRoadStopClassList; ///< Type definition for the list to hold available road stop classes.

        static const uint EDITBOX_MAX_SIZE = 16; ///< The maximum number of characters for the filter edit box.

        static Listing   last_sorting;           ///< Default sorting of #GUIRoadStopClassList.
        static Filtering last_filtering;         ///< Default filtering of #GUIRoadStopClassList.
        static GUIRoadStopClassList::SortFunction * const sorter_funcs[];   ///< Sort functions of the #GUIRoadStopClassList.
        static GUIRoadStopClassList::FilterFunction * const filter_funcs[]; ///< Filter functions of the #GUIRoadStopClassList.
        GUIRoadStopClassList roadstop_classes;   ///< Available road stop classes.
        StringFilter string_filter;              ///< Filter for available road stop classes.
        QueryString filter_editbox;              ///< Filter editbox.

        void EnsureSelectedClassIsVisible()
        {
                uint pos = 0;
                for (auto rs_class : this->roadstop_classes) {
                        if (rs_class == _roadstop_gui_settings.roadstop_class) break;
                        pos++;
                }
                this->vscrollList->SetCount(this->roadstop_classes.size());
                this->vscrollList->ScrollTowards(pos);
        }

        void CheckOrientationValid()
        {
                const RoadStopSpec *spec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(_roadstop_gui_settings.roadstop_type);

                /* Raise and lower to ensure the correct widget is lowered after changing displayed orientation plane. */
                this->RaiseWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);
                this->GetWidget<NWidgetStacked>(WID_BROS_AVAILABLE_ORIENTATIONS)->SetDisplayedPlane((spec != nullptr && HasBit(spec->flags, RSF_DRIVE_THROUGH_ONLY)) ? 1 : 0);
                this->LowerWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);

                if (_roadstop_gui_settings.orientation >= DIAGDIR_END) return;

                if (spec != nullptr && HasBit(spec->flags, RSF_DRIVE_THROUGH_ONLY)) {
                        this->RaiseWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);
                        _roadstop_gui_settings.orientation = DIAGDIR_END;
                        this->LowerWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);
                        this->SetDirty();
                        CloseWindowById(WC_SELECT_STATION, 0);
                }
        }

public:
        BuildRoadStationWindow(WindowDesc *desc, Window *parent, RoadStopType rs) : PickerWindowBase(desc, parent), filter_editbox(EDITBOX_MAX_SIZE * MAX_CHAR_LENGTH, EDITBOX_MAX_SIZE)
        {
                this->coverage_height = 2 * GetCharacterHeight(FS_NORMAL) + WidgetDimensions::scaled.vsep_normal;
                this->vscrollList = nullptr;
                this->vscrollMatrix = nullptr;
                this->roadStopType = rs;
                bool newstops = GetIfNewStopsByType(rs, _cur_roadtype);

                this->CreateNestedTree();

                /* Hide the station class filter if no stations other than the default one are available. */
                this->GetWidget<NWidgetStacked>(WID_BROS_SHOW_NEWST_DEFSIZE)->SetDisplayedPlane(newstops ? 0 : SZSP_NONE);
                this->GetWidget<NWidgetStacked>(WID_BROS_FILTER_CONTAINER)->SetDisplayedPlane(newstops ? 0 : SZSP_HORIZONTAL);
                this->GetWidget<NWidgetStacked>(WID_BROS_SHOW_NEWST_ADDITIONS)->SetDisplayedPlane(newstops ? 0 : SZSP_HORIZONTAL);
                this->GetWidget<NWidgetStacked>(WID_BROS_SHOW_NEWST_ORIENTATION)->SetDisplayedPlane(newstops ? 0 : SZSP_HORIZONTAL);
                this->GetWidget<NWidgetStacked>(WID_BROS_SHOW_NEWST_TYPE_SEL)->SetDisplayedPlane(newstops ? 0 : SZSP_HORIZONTAL);
                this->GetWidget<NWidgetStacked>(WID_BROS_SHOW_NEWST_MATRIX)->SetDisplayedPlane(newstops ? 0 : SZSP_NONE);
                this->GetWidget<NWidgetStacked>(WID_BROS_SHOW_NEWST_RESIZE)->SetDisplayedPlane(newstops ? 0 : SZSP_NONE);
                if (newstops) {
                        this->vscrollList = this->GetScrollbar(WID_BROS_NEWST_SCROLL);
                        this->vscrollMatrix = this->GetScrollbar(WID_BROS_MATRIX_SCROLL);

                        this->querystrings[WID_BROS_FILTER_EDITBOX] = &this->filter_editbox;
                        this->roadstop_classes.SetListing(this->last_sorting);
                        this->roadstop_classes.SetFiltering(this->last_filtering);
                        this->roadstop_classes.SetSortFuncs(this->sorter_funcs);
                        this->roadstop_classes.SetFilterFuncs(this->filter_funcs);
                }

                this->roadstop_classes.ForceRebuild();
                BuildRoadStopClassesAvailable();

                /* Trams don't have non-drivethrough stations */
                if (RoadTypeIsTram(_cur_roadtype) && _roadstop_gui_settings.orientation < DIAGDIR_END) {
                        _roadstop_gui_settings.orientation = DIAGDIR_END;
                }
                const RoadTypeInfo *rti = GetRoadTypeInfo(_cur_roadtype);
                this->GetWidget<NWidgetCore>(WID_BROS_CAPTION)->widget_data = rti->strings.picker_title[rs];

                for (WidgetID i = RoadTypeIsTram(_cur_roadtype) ? WID_BROS_STATION_X : WID_BROS_STATION_NE; i < WID_BROS_LT_OFF; i++) {
                        this->GetWidget<NWidgetCore>(i)->tool_tip = rti->strings.picker_tooltip[rs];
                }

                this->LowerWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);
                this->LowerWidget(WID_BROS_LT_OFF + _settings_client.gui.station_show_coverage);

                this->FinishInitNested(TRANSPORT_ROAD);

                this->window_class = (rs == ROADSTOP_BUS) ? WC_BUS_STATION : WC_TRUCK_STATION;
                if (!newstops || _roadstop_gui_settings.roadstop_class >= (int)RoadStopClass::GetClassCount()) {
                        /* There's no new stops available or the list has reduced in size.
                         * Now, set the default road stops as selected. */
                        _roadstop_gui_settings.roadstop_class = ROADSTOP_CLASS_DFLT;
                        _roadstop_gui_settings.roadstop_type = 0;
                }
                if (newstops) {
                        /* The currently selected class doesn't have any stops for this RoadStopType, reset the selection. */
                        if (!GetIfClassHasNewStopsByType(RoadStopClass::Get(_roadstop_gui_settings.roadstop_class), rs, _cur_roadtype)) {
                                _roadstop_gui_settings.roadstop_class = ROADSTOP_CLASS_DFLT;
                                _roadstop_gui_settings.roadstop_type = 0;
                        }
                        _roadstop_gui_settings.roadstop_count = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpecCount();
                        _roadstop_gui_settings.roadstop_type = std::min((int)_roadstop_gui_settings.roadstop_type, _roadstop_gui_settings.roadstop_count - 1);

                        /* Reset back to default class if the previously selected class is not available for this road stop type. */
                        if (!GetIfClassHasNewStopsByType(RoadStopClass::Get(_roadstop_gui_settings.roadstop_class), roadStopType, _cur_roadtype)) {
                                _roadstop_gui_settings.roadstop_class = ROADSTOP_CLASS_DFLT;
                        }

                        this->SelectFirstAvailableTypeIfUnavailable();

                        NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(WID_BROS_MATRIX);
                        matrix->SetScrollbar(this->vscrollMatrix);
                        matrix->SetCount(_roadstop_gui_settings.roadstop_count);
                        matrix->SetClicked(_roadstop_gui_settings.roadstop_type);

                        this->EnsureSelectedClassIsVisible();
                        this->CheckOrientationValid();
                }
        }

        void Close([[maybe_unused]] int data = 0) override
        {
                CloseWindowById(WC_SELECT_STATION, 0);
                this->PickerWindowBase::Close();
        }

        /** Sort classes by RoadStopClassID. */
        static bool RoadStopClassIDSorter(RoadStopClassID const &a, RoadStopClassID const &b)
        {
                return a < b;
        }

        /** Filter classes by class name. */
        static bool CDECL TagNameFilter(RoadStopClassID const *sc, StringFilter &filter)
        {
                filter.ResetState();
                filter.AddLine(GetString(RoadStopClass::Get(*sc)->name));
                return filter.GetState();
        }

        inline bool ShowNewStops() const
        {
                return this->vscrollList != nullptr;
        }

        void BuildRoadStopClassesAvailable()
        {
                if (!this->roadstop_classes.NeedRebuild()) return;

                this->roadstop_classes.clear();

                for (uint i = 0; i < RoadStopClass::GetClassCount(); i++) {
                        RoadStopClassID rs_id = (RoadStopClassID)i;
                        if (rs_id == ROADSTOP_CLASS_WAYP) {
                                // Skip waypoints.
                                continue;
                        }
                        RoadStopClass *rs_class = RoadStopClass::Get(rs_id);
                        if (GetIfClassHasNewStopsByType(rs_class, this->roadStopType, _cur_roadtype)) this->roadstop_classes.push_back(rs_id);
                }

                if (this->ShowNewStops()) {
                        this->roadstop_classes.Filter(this->string_filter);
                        this->roadstop_classes.shrink_to_fit();
                        this->roadstop_classes.RebuildDone();
                        this->roadstop_classes.Sort();

                        this->vscrollList->SetCount(this->roadstop_classes.size());
                }
        }

        void SelectFirstAvailableTypeIfUnavailable()
        {
                const RoadStopClass *rs_class = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class);
                StationType st = GetRoadStationTypeByWindowClass(this->window_class);

                if (IsRoadStopAvailable(rs_class->GetSpec(_roadstop_gui_settings.roadstop_type), st)) return;
                for (uint i = 0; i < _roadstop_gui_settings.roadstop_count; i++) {
                        if (IsRoadStopAvailable(rs_class->GetSpec(i), st)) {
                                _roadstop_gui_settings.roadstop_type = i;
                                break;
                        }
                }
        }

        void OnInvalidateData([[maybe_unused]] int data = 0, [[maybe_unused]] bool gui_scope = true) override
        {
                if (!gui_scope) return;

                this->BuildRoadStopClassesAvailable();
        }

        EventState OnHotkey(int hotkey) override
        {
                if (hotkey == BROSHK_FOCUS_FILTER_BOX) {
                        this->SetFocusedWidget(WID_BROS_FILTER_EDITBOX);
                        SetFocusedWindow(this); // The user has asked to give focus to the text box, so make sure this window is focused.
                        return ES_HANDLED;
                }

                return ES_NOT_HANDLED;
        }

        void OnEditboxChanged(WidgetID widget) override
        {
                if (widget == WID_BROS_FILTER_EDITBOX) {
                        string_filter.SetFilterTerm(this->filter_editbox.text.buf);
                        this->roadstop_classes.SetFilterState(!string_filter.IsEmpty());
                        this->roadstop_classes.ForceRebuild();
                        this->InvalidateData();
                }
        }

        void OnPaint() override
        {
                this->DrawWidgets();

                int rad = _settings_game.station.modified_catchment ? ((this->window_class == WC_BUS_STATION) ? CA_BUS : CA_TRUCK) : CA_UNMODIFIED;
                if (_settings_client.gui.station_show_coverage) {
                        SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad);
                } else {
                        SetTileSelectSize(1, 1);
                }

                if (this->IsShaded()) return;

                /* 'Accepts' and 'Supplies' texts. */
                StationCoverageType sct = (this->window_class == WC_BUS_STATION) ? SCT_PASSENGERS_ONLY : SCT_NON_PASSENGERS_ONLY;
                Rect r = this->GetWidget<NWidgetBase>(WID_BROS_ACCEPTANCE)->GetCurrentRect();
                int top = r.top;
                top = DrawStationCoverageAreaText(r.left, r.right, top, sct, rad, false) + WidgetDimensions::scaled.vsep_normal;
                top = DrawStationCoverageAreaText(r.left, r.right, top, sct, rad, true);
                /* Resize background if the window is too small.
                 * Never make the window smaller to avoid oscillating if the size change affects the acceptance.
                 * (This is the case, if making the window bigger moves the mouse into the window.) */
                if (top > r.bottom) {
                        this->coverage_height += top - r.bottom;
                        this->ReInit();
                }
        }

        void UpdateWidgetSize(WidgetID widget, Dimension *size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension *fill, [[maybe_unused]] Dimension *resize) override
        {
                switch (widget) {
                        case WID_BROS_NEWST_LIST: {
                                Dimension d = { 0, 0 };
                                for (auto rs_class : this->roadstop_classes) {
                                        d = maxdim(d, GetStringBoundingBox(RoadStopClass::Get(rs_class)->name));
                                }
                                size->width = std::max(size->width, d.width + padding.width);
                                this->line_height = GetCharacterHeight(FS_NORMAL) + WidgetDimensions::scaled.matrix.Vertical();
                                size->height = 5 * this->line_height;
                                resize->height = this->line_height;
                                break;
                        }

                        case WID_BROS_SHOW_NEWST_TYPE: {
                                Dimension d = {0, 0};
                                StringID str = this->GetWidget<NWidgetCore>(widget)->widget_data;
                                for (auto roadstop_class : this->roadstop_classes) {
                                        RoadStopClass *rs_class = RoadStopClass::Get(roadstop_class);
                                        for (uint j = 0; j < rs_class->GetSpecCount(); j++) {
                                                const RoadStopSpec *roadstopspec = rs_class->GetSpec(j);
                                                SetDParam(0, (roadstopspec != nullptr && roadstopspec->name != 0) ? roadstopspec->name : STR_STATION_CLASS_DFLT_ROADSTOP);
                                                d = maxdim(d, GetStringBoundingBox(str));
                                        }
                                }
                                size->width = std::max(size->width, d.width + padding.width);
                                break;
                        }

                        case WID_BROS_STATION_NE:
                        case WID_BROS_STATION_SE:
                        case WID_BROS_STATION_SW:
                        case WID_BROS_STATION_NW:
                        case WID_BROS_STATION_X:
                        case WID_BROS_STATION_Y:
                        case WID_BROS_IMAGE:
                                size->width  = ScaleGUITrad(64) + WidgetDimensions::scaled.fullbevel.Horizontal();
                                size->height = ScaleGUITrad(48) + WidgetDimensions::scaled.fullbevel.Vertical();
                                break;

                        case WID_BROS_MATRIX:
                                fill->height = 1;
                                resize->height = 1;
                                break;

                        case WID_BROS_ACCEPTANCE:
                                size->height = this->coverage_height;
                                break;
                }
        }

        /**
         * Simply to have a easier way to get the StationType for bus, truck and trams from the WindowClass.
         */
        StationType GetRoadStationTypeByWindowClass(WindowClass window_class) const
        {
                switch (window_class) {
                        case WC_BUS_STATION:          return STATION_BUS;
                        case WC_TRUCK_STATION:        return STATION_TRUCK;
                        default: NOT_REACHED();
                }
        }

        void DrawWidget(const Rect &r, WidgetID widget) const override
        {
                switch (widget) {
                        case WID_BROS_STATION_NE:
                        case WID_BROS_STATION_SE:
                        case WID_BROS_STATION_SW:
                        case WID_BROS_STATION_NW:
                        case WID_BROS_STATION_X:
                        case WID_BROS_STATION_Y: {
                                StationType st = GetRoadStationTypeByWindowClass(this->window_class);
                                const RoadStopSpec *spec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(_roadstop_gui_settings.roadstop_type);
                                DrawPixelInfo tmp_dpi;
                                Rect ir = r.Shrink(WidgetDimensions::scaled.bevel);
                                if (FillDrawPixelInfo(&tmp_dpi, ir)) {
                                        AutoRestoreBackup dpi_backup(_cur_dpi, &tmp_dpi);
                                        int x = (ir.Width()  - ScaleSpriteTrad(64)) / 2 + ScaleSpriteTrad(31);
                                        int y = (ir.Height() + ScaleSpriteTrad(48)) / 2 - ScaleSpriteTrad(31);
                                        if (spec == nullptr) {
                                                StationPickerDrawSprite(x, y, st, INVALID_RAILTYPE, _cur_roadtype, widget - WID_BROS_STATION_NE);
                                        } else {
                                                DrawRoadStopTile(x, y, _cur_roadtype, spec, st, widget - WID_BROS_STATION_NE);
                                        }
                                }
                                break;
                        }

                        case WID_BROS_NEWST_LIST: {
                                uint statclass = 0;
                                uint row = 0;
                                for (auto rs_class : this->roadstop_classes) {
                                        if (this->vscrollList->IsVisible(statclass)) {
                                                DrawString(r.left + WidgetDimensions::scaled.matrix.left, r.right, row * this->line_height + r.top + WidgetDimensions::scaled.matrix.top,
                                                                RoadStopClass::Get(rs_class)->name,
                                                                rs_class == _roadstop_gui_settings.roadstop_class ? TC_WHITE : TC_BLACK);
                                                row++;
                                        }
                                        statclass++;
                                }
                                break;
                        }

                        case WID_BROS_IMAGE: {
                                uint16_t type = this->GetWidget<NWidgetBase>(widget)->GetParentWidget<NWidgetMatrix>()->GetCurrentElement();
                                assert(type < _roadstop_gui_settings.roadstop_count);

                                const RoadStopSpec *spec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(type);
                                StationType st = GetRoadStationTypeByWindowClass(this->window_class);

                                /* Set up a clipping area for the sprite preview. */
                                DrawPixelInfo tmp_dpi;
                                Rect ir = r.Shrink(WidgetDimensions::scaled.bevel);
                                if (FillDrawPixelInfo(&tmp_dpi, ir)) {
                                        AutoRestoreBackup dpi_backup(_cur_dpi, &tmp_dpi);
                                        int x = (ir.Width()  - ScaleSpriteTrad(64)) / 2 + ScaleSpriteTrad(31);
                                        int y = (ir.Height() + ScaleSpriteTrad(48)) / 2 - ScaleSpriteTrad(31);
                                        if (spec == nullptr) {
                                                StationPickerDrawSprite(x, y, st, INVALID_RAILTYPE, _cur_roadtype, _roadstop_gui_settings.orientation);
                                        } else {
                                                DiagDirection orientation = _roadstop_gui_settings.orientation;
                                                if (orientation < DIAGDIR_END && HasBit(spec->flags, RSF_DRIVE_THROUGH_ONLY)) orientation = DIAGDIR_END;
                                                DrawRoadStopTile(x, y, _cur_roadtype, spec, st, (uint8_t)orientation);
                                        }
                                }
                                if (!IsRoadStopAvailable(spec, st)) {
                                        GfxFillRect(ir, PC_BLACK, FILLRECT_CHECKER);
                                }
                                break;
                        }
                }
        }

        void OnResize() override
        {
                if (this->vscrollList != nullptr) {
                        this->vscrollList->SetCapacityFromWidget(this, WID_BROS_NEWST_LIST);
                }
        }

        void SetStringParameters(WidgetID widget) const override
        {
                if (widget == WID_BROS_SHOW_NEWST_TYPE) {
                        const RoadStopSpec *roadstopspec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(_roadstop_gui_settings.roadstop_type);
                        SetDParam(0, (roadstopspec != nullptr && roadstopspec->name != 0) ? roadstopspec->name : STR_STATION_CLASS_DFLT_ROADSTOP);
                }
        }

        void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
        {
                switch (widget) {
                        case WID_BROS_STATION_NE:
                        case WID_BROS_STATION_SE:
                        case WID_BROS_STATION_SW:
                        case WID_BROS_STATION_NW:
                        case WID_BROS_STATION_X:
                        case WID_BROS_STATION_Y:
                                if (widget < WID_BROS_STATION_X) {
                                        const RoadStopSpec *spec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(_roadstop_gui_settings.roadstop_type);
                                        if (spec != nullptr && HasBit(spec->flags, RSF_DRIVE_THROUGH_ONLY)) return;
                                }
                                this->RaiseWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);
                                _roadstop_gui_settings.orientation = (DiagDirection)(widget - WID_BROS_STATION_NE);
                                this->LowerWidget(WID_BROS_STATION_NE + _roadstop_gui_settings.orientation);
                                if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
                                this->SetDirty();
                                CloseWindowById(WC_SELECT_STATION, 0);
                                break;

                        case WID_BROS_LT_OFF:
                        case WID_BROS_LT_ON:
                                this->RaiseWidget(_settings_client.gui.station_show_coverage + WID_BROS_LT_OFF);
                                _settings_client.gui.station_show_coverage = (widget != WID_BROS_LT_OFF);
                                this->LowerWidget(_settings_client.gui.station_show_coverage + WID_BROS_LT_OFF);
                                if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
                                this->SetDirty();
                                SetViewportCatchmentStation(nullptr, true);
                                break;

                        case WID_BROS_NEWST_LIST: {
                                auto it = this->vscrollList->GetScrolledItemFromWidget(this->roadstop_classes, pt.y, this, WID_BROS_NEWST_LIST);
                                if (it == this->roadstop_classes.end()) return;
                                RoadStopClassID class_id = *it;
                                if (_roadstop_gui_settings.roadstop_class != class_id && GetIfClassHasNewStopsByType(RoadStopClass::Get(class_id), roadStopType, _cur_roadtype)) {
                                        _roadstop_gui_settings.roadstop_class = class_id;
                                        RoadStopClass *rsclass = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class);
                                        _roadstop_gui_settings.roadstop_count = rsclass->GetSpecCount();
                                        _roadstop_gui_settings.roadstop_type = std::min((int)_roadstop_gui_settings.roadstop_type, std::max(0, (int)_roadstop_gui_settings.roadstop_count - 1));
                                        this->SelectFirstAvailableTypeIfUnavailable();

                                        NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(WID_BROS_MATRIX);
                                        matrix->SetCount(_roadstop_gui_settings.roadstop_count);
                                        matrix->SetClicked(_roadstop_gui_settings.roadstop_type);
                                }
                                if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
                                this->SetDirty();
                                CloseWindowById(WC_SELECT_STATION, 0);
                                this->CheckOrientationValid();
                                break;
                        }

                        case WID_BROS_IMAGE: {
                                uint16_t y = this->GetWidget<NWidgetBase>(widget)->GetParentWidget<NWidgetMatrix>()->GetCurrentElement();
                                if (y >= _roadstop_gui_settings.roadstop_count) return;

                                const RoadStopSpec *spec = RoadStopClass::Get(_roadstop_gui_settings.roadstop_class)->GetSpec(y);
                                StationType st = GetRoadStationTypeByWindowClass(this->window_class);

                                if (!IsRoadStopAvailable(spec, st)) return;

                                _roadstop_gui_settings.roadstop_type = y;

                                this->GetWidget<NWidgetBase>(widget)->GetParentWidget<NWidgetMatrix>()->SetClicked(_roadstop_gui_settings.roadstop_type);

                                if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
                                this->SetDirty();
                                CloseWindowById(WC_SELECT_STATION, 0);
                                this->CheckOrientationValid();
                                break;
                        }

                        default:
                                break;
                }
        }

        void OnRealtimeTick([[maybe_unused]] uint delta_ms) override
        {
                CheckRedrawStationCoverage(this);
        }

        IntervalTimer<TimerGameCalendar> yearly_interval = {{TimerGameCalendar::YEAR, TimerGameCalendar::Priority::NONE}, [this](auto) {
                this->InvalidateData();
        }};

        static inline HotkeyList road_hotkeys{"buildroadstop", {
                Hotkey('F', "focus_filter_box", BROSHK_FOCUS_FILTER_BOX),
        }};

        static inline HotkeyList tram_hotkeys{"buildtramstop", {
                Hotkey('F', "focus_filter_box", BROSHK_FOCUS_FILTER_BOX),
        }};
};

Listing BuildRoadStationWindow::last_sorting = { false, 0 };
Filtering BuildRoadStationWindow::last_filtering = { false, 0 };

BuildRoadStationWindow::GUIRoadStopClassList::SortFunction * const BuildRoadStationWindow::sorter_funcs[] = {
        &RoadStopClassIDSorter,
};

BuildRoadStationWindow::GUIRoadStopClassList::FilterFunction * const BuildRoadStationWindow::filter_funcs[] = {
        &TagNameFilter,
};

/** Widget definition of the build road station window */
static constexpr NWidgetPart _nested_road_station_picker_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION,  COLOUR_DARK_GREEN, WID_BROS_CAPTION),
                NWidget(WWT_SHADEBOX, COLOUR_DARK_GREEN),
                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_DEFSIZE),
                        NWidget(WWT_DEFSIZEBOX, COLOUR_DARK_GREEN),
                EndContainer(),
        EndContainer(),
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_normal, 0), SetPadding(WidgetDimensions::unscaled.picker),
                                NWidget(NWID_HORIZONTAL), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1),
                                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_picker, 0),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_FILTER_CONTAINER),
                                                        NWidget(NWID_HORIZONTAL), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0),
                                                                NWidget(WWT_TEXT, COLOUR_DARK_GREEN), SetFill(0, 1), SetDataTip(STR_LIST_FILTER_TITLE, STR_NULL),
                                                                NWidget(WWT_EDITBOX, COLOUR_GREY, WID_BROS_FILTER_EDITBOX), SetFill(1, 0), SetResize(1, 0),
                                                                                SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
                                                        EndContainer(),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_ADDITIONS),
                                                        NWidget(NWID_HORIZONTAL),
                                                                NWidget(WWT_MATRIX, COLOUR_GREY, WID_BROS_NEWST_LIST), SetMinimalSize(122, 71), SetFill(1, 0),
                                                                        SetMatrixDataTip(1, 0, STR_STATION_BUILD_STATION_CLASS_TOOLTIP), SetScrollbar(WID_BROS_NEWST_SCROLL),
                                                                NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_BROS_NEWST_SCROLL),
                                                        EndContainer(),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_ORIENTATION),
                                                        NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetMinimalSize(144, 11), SetDataTip(STR_STATION_BUILD_ORIENTATION, STR_NULL), SetFill(1, 0),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_AVAILABLE_ORIENTATIONS),
                                                        /* 6-orientation plane. */
                                                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_normal, 0),
                                                                NWidget(NWID_HORIZONTAL), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1),
                                                                        NWidget(NWID_HORIZONTAL_LTR), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0),
                                                                                NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_NW), SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                                NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_NE), SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                        EndContainer(),
                                                                        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_X),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                EndContainer(),
                                                                NWidget(NWID_HORIZONTAL), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1),
                                                                        NWidget(NWID_HORIZONTAL_LTR), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0),
                                                                                NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_SW), SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                                NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_SE), SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                        EndContainer(),
                                                                        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_Y),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                EndContainer(),
                                                        EndContainer(),
                                                        /* 2-orientation plane. */
                                                        NWidget(NWID_VERTICAL), SetPIPRatio(0, 0, 1),
                                                                NWidget(NWID_HORIZONTAL_LTR), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1),
                                                                        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_X),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_Y),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                                EndContainer(),
                                                        EndContainer(),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_TYPE_SEL),
                                                        NWidget(WWT_LABEL, COLOUR_DARK_GREEN, WID_BROS_SHOW_NEWST_TYPE), SetMinimalSize(144, 8), SetDataTip(STR_JUST_STRING, STR_NULL), SetTextStyle(TC_ORANGE), SetFill(1, 0),
                                                EndContainer(),
                                                NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetDataTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE, STR_NULL), SetFill(1, 0),
                                                NWidget(NWID_HORIZONTAL), SetPIPRatio(1, 0, 1),
                                                        NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROS_LT_OFF), SetMinimalSize(60, 12),
                                                                        SetDataTip(STR_STATION_BUILD_COVERAGE_OFF, STR_STATION_BUILD_COVERAGE_AREA_OFF_TOOLTIP),
                                                        NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROS_LT_ON), SetMinimalSize(60, 12),
                                                                        SetDataTip(STR_STATION_BUILD_COVERAGE_ON, STR_STATION_BUILD_COVERAGE_AREA_ON_TOOLTIP),
                                                EndContainer(),
                                        EndContainer(),
                                        NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_MATRIX),
                                                /* Hidden panel as NWID_MATRIX does not support SetScrollbar() */
                                                NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetScrollbar(WID_BROS_MATRIX_SCROLL),
                                                        NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, WID_BROS_MATRIX), SetPIP(0, 2, 0),
                                                                NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BROS_IMAGE), SetMinimalSize(66, 60),
                                                                                SetFill(0, 0), SetResize(0, 0), SetDataTip(0x0, STR_STATION_BUILD_STATION_TYPE_TOOLTIP), SetScrollbar(WID_BROS_MATRIX_SCROLL),
                                                                EndContainer(),
                                                        EndContainer(),
                                                EndContainer(),
                                        EndContainer(),
                                EndContainer(),
                                NWidget(WWT_EMPTY, INVALID_COLOUR, WID_BROS_ACCEPTANCE), SetFill(1, 1), SetResize(1, 0), SetMinimalTextLines(2, WidgetDimensions::unscaled.vsep_normal),
                        EndContainer(),
                EndContainer(),
                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_RESIZE),
                        NWidget(NWID_VERTICAL),
                                NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, WID_BROS_MATRIX_SCROLL),
                                NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
                        EndContainer(),
                EndContainer(),
        EndContainer(),
};

static WindowDesc _road_station_picker_desc(__FILE__, __LINE__,
        WDP_AUTO, "build_station_road", 0, 0,
        WC_BUS_STATION, WC_BUILD_TOOLBAR,
        WDF_CONSTRUCTION,
        std::begin(_nested_road_station_picker_widgets), std::end(_nested_road_station_picker_widgets),
        &BuildRoadStationWindow::road_hotkeys
);

/** Widget definition of the build tram station window */
static constexpr NWidgetPart _nested_tram_station_picker_widgets[] = {
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
                NWidget(WWT_CAPTION,  COLOUR_DARK_GREEN, WID_BROS_CAPTION),
                NWidget(WWT_SHADEBOX, COLOUR_DARK_GREEN),
                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_DEFSIZE),
                        NWidget(WWT_DEFSIZEBOX, COLOUR_DARK_GREEN),
                EndContainer(),
        EndContainer(),
        NWidget(NWID_HORIZONTAL),
                NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_normal, 0), SetPadding(WidgetDimensions::unscaled.picker),
                                NWidget(NWID_HORIZONTAL), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1),
                                        NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_picker, 0),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_FILTER_CONTAINER),
                                                        NWidget(NWID_HORIZONTAL), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0),
                                                                NWidget(WWT_TEXT, COLOUR_DARK_GREEN), SetFill(0, 1), SetDataTip(STR_LIST_FILTER_TITLE, STR_NULL),
                                                                NWidget(WWT_EDITBOX, COLOUR_GREY, WID_BROS_FILTER_EDITBOX), SetFill(1, 0), SetResize(1, 0),
                                                                                SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
                                                        EndContainer(),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_ADDITIONS),
                                                        NWidget(NWID_HORIZONTAL),
                                                                NWidget(WWT_MATRIX, COLOUR_GREY, WID_BROS_NEWST_LIST), SetMinimalSize(122, 71), SetFill(1, 0),
                                                                        SetMatrixDataTip(1, 0, STR_STATION_BUILD_STATION_CLASS_TOOLTIP), SetScrollbar(WID_BROS_NEWST_SCROLL),
                                                                NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_BROS_NEWST_SCROLL),
                                                        EndContainer(),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_ORIENTATION),
                                                        NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetMinimalSize(144, 11), SetDataTip(STR_STATION_BUILD_ORIENTATION, STR_NULL), SetFill(1, 0),
                                                EndContainer(),
                                                NWidget(NWID_HORIZONTAL_LTR), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1),
                                                        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_X),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_Y),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
                                                EndContainer(),
                                                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_TYPE_SEL),
                                                        NWidget(WWT_LABEL, COLOUR_DARK_GREEN, WID_BROS_SHOW_NEWST_TYPE), SetMinimalSize(144, 8), SetDataTip(STR_JUST_STRING, STR_NULL), SetTextStyle(TC_ORANGE), SetFill(1, 0),
                                                EndContainer(),
                                                NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetDataTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE, STR_NULL), SetFill(1, 0),
                                                NWidget(NWID_HORIZONTAL), SetPIPRatio(1, 0, 1),
                                                        NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROS_LT_OFF), SetMinimalSize(60, 12),
                                                                        SetDataTip(STR_STATION_BUILD_COVERAGE_OFF, STR_STATION_BUILD_COVERAGE_AREA_OFF_TOOLTIP),
                                                        NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BROS_LT_ON), SetMinimalSize(60, 12),
                                                                        SetDataTip(STR_STATION_BUILD_COVERAGE_ON, STR_STATION_BUILD_COVERAGE_AREA_ON_TOOLTIP),
                                                EndContainer(),
                                        EndContainer(),
                                        NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_MATRIX),
                                                /* Hidden panel as NWID_MATRIX does not support SetScrollbar() */
                                                NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetScrollbar(WID_BROS_MATRIX_SCROLL),
                                                        NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, WID_BROS_MATRIX), SetPIP(0, 2, 0),
                                                                NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BROS_IMAGE), SetMinimalSize(66, 60),
                                                                                SetFill(0, 0), SetResize(0, 0), SetDataTip(0x0, STR_STATION_BUILD_STATION_TYPE_TOOLTIP), SetScrollbar(WID_BROS_MATRIX_SCROLL),
                                                                EndContainer(),
                                                        EndContainer(),
                                                EndContainer(),
                                        EndContainer(),
                                EndContainer(),
                                NWidget(WWT_EMPTY, INVALID_COLOUR, WID_BROS_ACCEPTANCE), SetFill(1, 1), SetResize(1, 0), SetMinimalTextLines(2, WidgetDimensions::unscaled.vsep_normal),
                        EndContainer(),
                EndContainer(),
                NWidget(NWID_SELECTION, INVALID_COLOUR, WID_BROS_SHOW_NEWST_RESIZE),
                        NWidget(NWID_VERTICAL),
                                NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, WID_BROS_MATRIX_SCROLL),
                                NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
                        EndContainer(),
                EndContainer(),
        EndContainer(),
};

static WindowDesc _tram_station_picker_desc(__FILE__, __LINE__,
        WDP_AUTO, "build_station_tram", 0, 0,
        WC_BUS_STATION, WC_BUILD_TOOLBAR,
        WDF_CONSTRUCTION,
        std::begin(_nested_tram_station_picker_widgets), std::end(_nested_tram_station_picker_widgets),
        &BuildRoadStationWindow::tram_hotkeys
);

static void ShowRVStationPicker(Window *parent, RoadStopType rs)
{
        new BuildRoadStationWindow(RoadTypeIsRoad(_cur_roadtype) ? &_road_station_picker_desc : &_tram_station_picker_desc, parent, rs);
}

void InitializeRoadGui()
{
        _road_depot_orientation = DIAGDIR_NW;
        _roadstop_gui_settings.orientation = DIAGDIR_NW;
}

/**
 * I really don't know why rail_gui.cpp has this too, shouldn't be included in the other one?
 */
void InitializeRoadGUI()
{
        BuildRoadToolbarWindow *w = dynamic_cast<BuildRoadToolbarWindow *>(FindWindowById(WC_BUILD_TOOLBAR, TRANSPORT_ROAD));
        if (w != nullptr) w->ModifyRoadType(_cur_roadtype);
}

DropDownList GetRoadTypeDropDownList(RoadTramTypes rtts, bool for_replacement, bool all_option)
{
        RoadTypes used_roadtypes;
        RoadTypes avail_roadtypes;

        const Company *c = Company::Get(_local_company);

        /* Find the used roadtypes. */
        if (for_replacement) {
                avail_roadtypes = GetCompanyRoadTypes(c->index, false);
                used_roadtypes  = GetRoadTypes(false);
        } else {
                avail_roadtypes = c->avail_roadtypes;
                used_roadtypes  = GetRoadTypes(true);
        }

        /* Filter listed road types */
        if (!HasBit(rtts, RTT_ROAD)) used_roadtypes &= _roadtypes_type;
        if (!HasBit(rtts, RTT_TRAM)) used_roadtypes &= ~_roadtypes_type;

        DropDownList list;

        if (all_option) {
                list.push_back(std::make_unique<DropDownListStringItem>(STR_REPLACE_ALL_ROADTYPE, INVALID_ROADTYPE, false));
        }

        Dimension d = { 0, 0 };
        /* Get largest icon size, to ensure text is aligned on each menu item. */
        if (!for_replacement) {
                for (const auto &rt : _sorted_roadtypes) {
                        if (!HasBit(used_roadtypes, rt)) continue;
                        const RoadTypeInfo *rti = GetRoadTypeInfo(rt);
                        d = maxdim(d, GetSpriteSize(rti->gui_sprites.build_x_road));
                }
        }

        for (const auto &rt : _sorted_roadtypes) {
                /* If it's not used ever, don't show it to the user. */
                if (!HasBit(used_roadtypes, rt)) continue;

                const RoadTypeInfo *rti = GetRoadTypeInfo(rt);

                SetDParam(0, rti->strings.menu_text);
                SetDParam(1, rti->max_speed / 2);
                if (for_replacement) {
                        list.push_back(std::make_unique<DropDownListStringItem>(rti->strings.replace_text, rt, !HasBit(avail_roadtypes, rt)));
                } else {
                        StringID str = rti->max_speed > 0 ? STR_TOOLBAR_RAILTYPE_VELOCITY : STR_JUST_STRING;
                        list.push_back(std::make_unique<DropDownListIconItem>(d, rti->gui_sprites.build_x_road, PAL_NONE, str, rt, !HasBit(avail_roadtypes, rt)));
                }
        }

        if (list.empty()) {
                /* Empty dropdowns are not allowed */
                list.push_back(std::make_unique<DropDownListStringItem>(STR_NONE, INVALID_ROADTYPE, true));
        }

        return list;
}

DropDownList GetScenRoadTypeDropDownList(RoadTramTypes rtts)
{
        RoadTypes avail_roadtypes = GetRoadTypes(false);
        avail_roadtypes = AddDateIntroducedRoadTypes(avail_roadtypes, TimerGameCalendar::date);
        RoadTypes used_roadtypes = GetRoadTypes(true);

        /* Filter listed road types */
        if (!HasBit(rtts, RTT_ROAD)) used_roadtypes &= _roadtypes_type;
        if (!HasBit(rtts, RTT_TRAM)) used_roadtypes &= ~_roadtypes_type;

        DropDownList list;

        /* If it's not used ever, don't show it to the user. */
        Dimension d = { 0, 0 };
        for (const auto &rt : _sorted_roadtypes) {
                if (!HasBit(used_roadtypes, rt)) continue;
                const RoadTypeInfo *rti = GetRoadTypeInfo(rt);
                d = maxdim(d, GetSpriteSize(rti->gui_sprites.build_x_road));
        }
        for (const auto &rt : _sorted_roadtypes) {
                if (!HasBit(used_roadtypes, rt)) continue;

                const RoadTypeInfo *rti = GetRoadTypeInfo(rt);

                SetDParam(0, rti->strings.menu_text);
                SetDParam(1, rti->max_speed / 2);
                StringID str = rti->max_speed > 0 ? STR_TOOLBAR_RAILTYPE_VELOCITY : STR_JUST_STRING;
                list.push_back(std::make_unique<DropDownListIconItem>(d, rti->gui_sprites.build_x_road, PAL_NONE, str, rt, !HasBit(avail_roadtypes, rt)));
        }

        if (list.empty()) {
                /* Empty dropdowns are not allowed */
                list.push_back(std::make_unique<DropDownListStringItem>(STR_NONE, -1, true));
        }

        return list;
}