road_gui.cpp

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/*
 * 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/>.
 */

#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 "date_func.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;

enum RoadFlags {
  RF_NONE             = 0x00,
  RF_START_HALFROAD_Y = 0x01,    // The start tile in Y-dir should have only a half road
  RF_END_HALFROAD_Y   = 0x02,    // The end tile in Y-dir should have only a half road
  RF_DIR_Y            = 0x04,    // The direction is Y-dir
  RF_DIR_X            = RF_NONE, // Dummy; Dir X is set when RF_DIR_Y is not set
  RF_START_HALFROAD_X = 0x08,    // The start tile in X-dir should have only a half road
  RF_END_HALFROAD_X   = 0x10,    // The end tile in X-dir should have only a half road
};
DECLARE_ENUM_AS_BIT_SET(RoadFlags)

static RoadFlags _place_road_flag;

static RoadType _cur_roadtype;

static DiagDirection _road_depot_orientation;
static DiagDirection _road_station_picker_orientation;

void CcPlaySound_SPLAT_OTHER(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2, uint32 cmd)
{
  if (result.Succeeded() && _settings_client.sound.confirm) SndPlayTileFx(SND_1F_SPLAT_OTHER, tile);
}

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);
  }
}

void CcBuildRoadTunnel(const CommandCost &result, TileIndex start_tile, uint32 p1, uint32 p2, uint32 cmd)
{
  if (result.Succeeded()) {
    if (_settings_client.sound.confirm) SndPlayTileFx(SND_1F_SPLAT_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);
  }
}

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) {
      DoCommandP(tile, _cur_roadtype << 4 | DiagDirToRoadBits(ReverseDiagDir(direction)), 0, CMD_BUILD_ROAD);
    }
  }
}

void CcRoadDepot(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2, uint32 cmd)
{
  if (result.Failed()) return;

  DiagDirection dir = (DiagDirection)GB(p1, 0, 2);
  if (_settings_client.sound.confirm) SndPlayTileFx(SND_1F_SPLAT_OTHER, tile);
  if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
  ConnectRoadToStructure(tile, dir);
}

void CcRoadStop(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2, uint32 cmd)
{
  if (result.Failed()) return;

  DiagDirection dir = (DiagDirection)GB(p2, 3, 2);
  if (_settings_client.sound.confirm) SndPlayTileFx(SND_1F_SPLAT_OTHER, tile);
  if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
  TileArea roadstop_area(tile, GB(p1, 0, 8), GB(p1, 8, 8));
  TILE_AREA_LOOP(cur_tile, roadstop_area) {
    ConnectRoadToStructure(cur_tile, dir);
    /* For a drive-through road stop build connecting road for other entrance. */
    if (HasBit(p2, 1)) ConnectRoadToStructure(cur_tile, ReverseDiagDir(dir));
  }
}

static void PlaceRoadStop(TileIndex start_tile, TileIndex end_tile, uint32 p2, uint32 cmd)
{
  uint8 ddir = _road_station_picker_orientation;
  SB(p2, 16, 16, INVALID_STATION); // no station to join

  if (ddir >= DIAGDIR_END) {
    SetBit(p2, 1); // It's a drive-through stop.
    ddir -= DIAGDIR_END; // Adjust picker result to actual direction.
  }
  p2 |= ddir << 3; // Set the DiagDirecion into p2 bits 3 and 4.

  TileArea ta(start_tile, end_tile);
  CommandContainer cmdcont = { ta.tile, (uint32)(ta.w | ta.h << 8), p2, cmd, CcRoadStop, "" };
  ShowSelectStationIfNeeded(cmdcont, ta);
}

static void PlaceRoad_BusStation(TileIndex tile)
{
  if (_remove_button_clicked) {
    VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_REMOVE_BUSSTOP);
  } else {
    if (_road_station_picker_orientation < DIAGDIR_END) { // Not a drive-through stop.
      VpStartPlaceSizing(tile, (DiagDirToAxis(_road_station_picker_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);
  }
}

static void PlaceRoad_TruckStation(TileIndex tile)
{
  if (_remove_button_clicked) {
    VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_REMOVE_TRUCKSTOP);
  } else {
    if (_road_station_picker_orientation < DIAGDIR_END) { // Not a drive-through stop.
      VpStartPlaceSizing(tile, (DiagDirToAxis(_road_station_picker_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);

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);
}

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 (uint i = WID_ROT_ROAD_X; i <= WID_ROT_AUTOROAD; i++) {
    if (w->IsWidgetLowered(i)) {
      ToggleRoadButton_Remove(w);
      return true;
    }
  }

  return false;
}

struct BuildRoadToolbarWindow : Window {
  RoadType roadtype;          
  const RoadTypeInfo *rti;    
  int last_started_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 = WIDGET_LIST_END;

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

  ~BuildRoadToolbarWindow()
  {
    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) DeleteWindowById(WC_SCEN_LAND_GEN, 0, false);
  }

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

    if (_game_mode != GM_EDITOR && !CanBuildVehicleInfrastructure(VEH_ROAD, GetRoadTramType(this->roadtype))) delete this;
    bool can_build = _game_mode != GM_EDITOR;
    this->SetWidgetsDisabledState(!can_build,
        WID_ROT_DEPOT,
        WID_ROT_BUS_STATION,
        WID_ROT_TRUCK_STATION,
        WIDGET_LIST_END);
    if (!can_build) {
      DeleteWindowById(WC_BUILD_DEPOT, TRANSPORT_ROAD);
      DeleteWindowById(WC_BUS_STATION, TRANSPORT_ROAD);
      DeleteWindowById(WC_TRUCK_STATION, TRANSPORT_ROAD);
    }
  }

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

  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;
  }

  void ModifyRoadType(RoadType roadtype)
  {
    this->Initialize(roadtype);
    this->SetupRoadToolbar();
    this->ReInit();
  }

  void SetStringParameters(int 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, this->rti->max_speed / 2);
      } else {
        SetDParam(0, this->rti->strings.toolbar_caption);
      }
    }
  }

  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(Point pt, int widget, 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 (_game_mode == GM_EDITOR || !CanBuildVehicleInfrastructure(VEH_ROAD, GetRoadTramType(this->roadtype))) return;
        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 (_game_mode == GM_EDITOR || !CanBuildVehicleInfrastructure(VEH_ROAD, GetRoadTramType(this->roadtype))) return;
        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 (_game_mode == GM_EDITOR || !CanBuildVehicleInfrastructure(VEH_ROAD, GetRoadTramType(this->roadtype))) return;
        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;

        DeleteWindowById(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(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_flag = RF_DIR_X;
        if (_tile_fract_coords.x >= 8) _place_road_flag |= RF_START_HALFROAD_X;
        VpStartPlaceSizing(tile, VPM_FIX_Y, DDSP_PLACE_ROAD_X_DIR);
        break;

      case WID_ROT_ROAD_Y:
        _place_road_flag = RF_DIR_Y;
        if (_tile_fract_coords.y >= 8) _place_road_flag |= RF_START_HALFROAD_Y;
        VpStartPlaceSizing(tile, VPM_FIX_X, DDSP_PLACE_ROAD_Y_DIR);
        break;

      case WID_ROT_AUTOROAD:
        _place_road_flag = RF_NONE;
        if (_tile_fract_coords.x >= 8) _place_road_flag |= RF_START_HALFROAD_X;
        if (_tile_fract_coords.y >= 8) _place_road_flag |= RF_START_HALFROAD_Y;
        VpStartPlaceSizing(tile, VPM_X_OR_Y, DDSP_PLACE_AUTOROAD);
        break;

      case WID_ROT_DEMOLISH:
        PlaceProc_DemolishArea(tile);
        break;

      case WID_ROT_DEPOT:
        DoCommandP(tile, _cur_roadtype << 2 | _road_depot_orientation, 0,
            CMD_BUILD_ROAD_DEPOT | CMD_MSG(this->rti->strings.err_depot), CcRoadDepot);
        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:
        DoCommandP(tile, _cur_roadtype | (TRANSPORT_ROAD << 8), 0,
            CMD_BUILD_TUNNEL | CMD_MSG(STR_ERROR_CAN_T_BUILD_TUNNEL_HERE), CcBuildRoadTunnel);
        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);
    }

    DeleteWindowById(WC_BUS_STATION, TRANSPORT_ROAD);
    DeleteWindowById(WC_TRUCK_STATION, TRANSPORT_ROAD);
    DeleteWindowById(WC_BUILD_DEPOT, TRANSPORT_ROAD);
    DeleteWindowById(WC_SELECT_STATION, 0);
    DeleteWindowByClass(WC_BUILD_BRIDGE);
  }

  void OnPlaceDrag(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, 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_flag &= ~RF_END_HALFROAD_X;
        if (pt.x & 8) _place_road_flag |= RF_END_HALFROAD_X;
        break;

      case DDSP_PLACE_ROAD_Y_DIR:
        _place_road_flag &= ~RF_END_HALFROAD_Y;
        if (pt.y & 8) _place_road_flag |= RF_END_HALFROAD_Y;
        break;

      case DDSP_PLACE_AUTOROAD:
        _place_road_flag &= ~(RF_END_HALFROAD_Y | RF_END_HALFROAD_X);
        if (pt.y & 8) _place_road_flag |= RF_END_HALFROAD_Y;
        if (pt.x & 8) _place_road_flag |= RF_END_HALFROAD_X;

        /* 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_flag &= ~RF_DIR_Y;
        } else {
          /* Set dir = Y */
          _place_road_flag |= RF_DIR_Y;
        }

        break;

      default:
        break;
    }

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

  void OnPlaceMouseUp(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, 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:
          /* Flag description:
           * Use the first three bits (0x07) if dir == Y
           * else use the last 2 bits (X dir has
           * not the 3rd bit set) */

          /* Even if _cur_roadtype_id is a uint8 we only use 5 bits so
           * we could ignore the last 3 bits and reuse them for other
           * flags */
          _place_road_flag = (RoadFlags)((_place_road_flag & RF_DIR_Y) ? (_place_road_flag & 0x07) : (_place_road_flag >> 3));

          DoCommandP(start_tile, end_tile, _place_road_flag | (_cur_roadtype << 3) | (_one_way_button_clicked << 10),
              _remove_button_clicked ?
              CMD_REMOVE_LONG_ROAD | CMD_MSG(this->rti->strings.err_remove_road) :
              CMD_BUILD_LONG_ROAD | CMD_MSG(this->rti->strings.err_build_road), CcPlaySound_SPLAT_OTHER);
          break;

        case DDSP_BUILD_BUSSTOP:
        case DDSP_REMOVE_BUSSTOP:
          if (this->IsWidgetLowered(WID_ROT_BUS_STATION)) {
            if (_remove_button_clicked) {
              TileArea ta(start_tile, end_tile);
              DoCommandP(ta.tile, ta.w | ta.h << 8, (_ctrl_pressed << 1) | ROADSTOP_BUS, CMD_REMOVE_ROAD_STOP | CMD_MSG(this->rti->strings.err_remove_station[ROADSTOP_BUS]), CcPlaySound_SPLAT_OTHER);
            } else {
              PlaceRoadStop(start_tile, end_tile, _cur_roadtype << 5 | (_ctrl_pressed << 2) | ROADSTOP_BUS, CMD_BUILD_ROAD_STOP | CMD_MSG(this->rti->strings.err_build_station[ROADSTOP_BUS]));
            }
          }
          break;

        case DDSP_BUILD_TRUCKSTOP:
        case DDSP_REMOVE_TRUCKSTOP:
          if (this->IsWidgetLowered(WID_ROT_TRUCK_STATION)) {
            if (_remove_button_clicked) {
              TileArea ta(start_tile, end_tile);
              DoCommandP(ta.tile, ta.w | ta.h << 8, (_ctrl_pressed << 1) | ROADSTOP_TRUCK, CMD_REMOVE_ROAD_STOP | CMD_MSG(this->rti->strings.err_remove_station[ROADSTOP_TRUCK]), CcPlaySound_SPLAT_OTHER);
            } else {
              PlaceRoadStop(start_tile, end_tile, _cur_roadtype << 5 | (_ctrl_pressed << 2) | ROADSTOP_TRUCK, CMD_BUILD_ROAD_STOP | CMD_MSG(this->rti->strings.err_build_station[ROADSTOP_TRUCK]));
            }
          }
          break;

        case DDSP_CONVERT_ROAD:
          DoCommandP(end_tile, start_tile, _cur_roadtype, CMD_CONVERT_ROAD | CMD_MSG(rti->strings.err_convert_road), CcPlaySound_SPLAT_OTHER);
          break;
      }
    }
  }

  void OnPlacePresize(Point pt, TileIndex tile) override
  {
    DoCommand(tile, _cur_roadtype | (TRANSPORT_ROAD << 8), 0, DC_AUTO, CMD_BUILD_TUNNEL);
    VpSetPresizeRange(tile, _build_tunnel_endtile == 0 ? tile : _build_tunnel_endtile);
  }

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

  static HotkeyList road_hotkeys;
  static HotkeyList tram_hotkeys;
};

static EventState RoadTramToolbarGlobalHotkeys(int hotkey, RoadType last_build, RoadTramType rtt)
{
  Window* w = nullptr;
  switch (_game_mode) {
    case GM_NORMAL:
      if (!CanBuildVehicleInfrastructure(VEH_ROAD, rtt)) return ES_NOT_HANDLED;
      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 Hotkey roadtoolbar_hotkeys[] = {
  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),
  HOTKEY_LIST_END
};
HotkeyList BuildRoadToolbarWindow::road_hotkeys("roadtoolbar", roadtoolbar_hotkeys, RoadToolbarGlobalHotkeys);

static Hotkey tramtoolbar_hotkeys[] = {
  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),
  HOTKEY_LIST_END
};
HotkeyList BuildRoadToolbarWindow::tram_hotkeys("tramtoolbar", tramtoolbar_hotkeys, TramToolbarGlobalHotkeys);


static const 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_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    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(
  WDP_ALIGN_TOOLBAR, "toolbar_road", 0, 0,
  WC_BUILD_TOOLBAR, WC_NONE,
  WDF_CONSTRUCTION,
  _nested_build_road_widgets, lengthof(_nested_build_road_widgets),
  &BuildRoadToolbarWindow::road_hotkeys
);

static const 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_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    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(
  WDP_ALIGN_TOOLBAR, "toolbar_tramway", 0, 0,
  WC_BUILD_TOOLBAR, WC_NONE,
  WDF_CONSTRUCTION,
  _nested_build_tramway_widgets, lengthof(_nested_build_tramway_widgets),
  &BuildRoadToolbarWindow::tram_hotkeys
);

Window *ShowBuildRoadToolbar(RoadType roadtype)
{
  if (!Company::IsValidID(_local_company)) return nullptr;
  if (!ValParamRoadType(roadtype)) return nullptr;

  DeleteWindowByClass(WC_BUILD_TOOLBAR);
  _cur_roadtype = roadtype;

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

static const 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_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    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(
  WDP_AUTO, "toolbar_road_scen", 0, 0,
  WC_SCEN_BUILD_TOOLBAR, WC_NONE,
  WDF_CONSTRUCTION,
  _nested_build_road_scen_widgets, lengthof(_nested_build_road_scen_widgets),
  &BuildRoadToolbarWindow::road_hotkeys
);

static const 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_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    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(
  WDP_AUTO, "toolbar_tram_scen", 0, 0,
  WC_SCEN_BUILD_TOOLBAR, WC_NONE,
  WDF_CONSTRUCTION,
  _nested_build_tramway_scen_widgets, lengthof(_nested_build_tramway_scen_widgets),
  &BuildRoadToolbarWindow::tram_hotkeys
);

Window *ShowBuildRoadScenToolbar(RoadType roadtype)
{
  DeleteWindowById(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(_road_depot_orientation + WID_BROD_DEPOT_NE);
    if (RoadTypeIsTram(_cur_roadtype)) {
      this->GetWidget<NWidgetCore>(WID_BROD_CAPTION)->widget_data = STR_BUILD_DEPOT_TRAM_ORIENTATION_CAPTION;
      for (int 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(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    if (!IsInsideMM(widget, WID_BROD_DEPOT_NE, WID_BROD_DEPOT_NW + 1)) return;

    size->width  = ScaleGUITrad(64) + 2;
    size->height = ScaleGUITrad(48) + 2;
  }

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

    DrawRoadDepotSprite(r.left + 1 + ScaleGUITrad(31), r.bottom - ScaleGUITrad(31), (DiagDirection)(widget - WID_BROD_DEPOT_NE + DIAGDIR_NE), _cur_roadtype);
  }

  void OnClick(Point pt, int widget, 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(_road_depot_orientation + WID_BROD_DEPOT_NE);
        _road_depot_orientation = (DiagDirection)(widget - WID_BROD_DEPOT_NE);
        this->LowerWidget(_road_depot_orientation + WID_BROD_DEPOT_NE);
        if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
        this->SetDirty();
        break;

      default:
        break;
    }
  }
};

static const 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_SPACER), SetMinimalSize(0, 3),
    NWidget(NWID_HORIZONTAL_LTR),
      NWidget(NWID_SPACER), SetMinimalSize(3, 0), SetFill(1, 0),
      NWidget(NWID_VERTICAL),
        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROD_DEPOT_NW), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
        EndContainer(),
        NWidget(NWID_SPACER), SetMinimalSize(0, 2),
        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROD_DEPOT_SW), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
        EndContainer(),
      EndContainer(),
      NWidget(NWID_SPACER), SetMinimalSize(2, 0),
      NWidget(NWID_VERTICAL),
        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROD_DEPOT_NE), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
        EndContainer(),
        NWidget(NWID_SPACER), SetMinimalSize(0, 2),
        NWidget(WWT_PANEL, COLOUR_GREY, WID_BROD_DEPOT_SE), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_ROAD_ORIENTATION_SELECT_TOOLTIP),
        EndContainer(),
      EndContainer(),
      NWidget(NWID_SPACER), SetMinimalSize(3, 0), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 3),
  EndContainer(),
};

static WindowDesc _build_road_depot_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_BUILD_DEPOT, WC_BUILD_TOOLBAR,
  WDF_CONSTRUCTION,
  _nested_build_road_depot_widgets, lengthof(_nested_build_road_depot_widgets)
);

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

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

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

    for (uint 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(_road_station_picker_orientation + WID_BROS_STATION_NE);
    this->LowerWidget(_settings_client.gui.station_show_coverage + WID_BROS_LT_OFF);

    this->FinishInitNested(TRANSPORT_ROAD);

    this->window_class = (rs == ROADSTOP_BUS) ? WC_BUS_STATION : WC_TRUCK_STATION;
  }

  virtual ~BuildRoadStationWindow()
  {
    DeleteWindowById(WC_SELECT_STATION, 0);
  }

  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);
    }

    /* 'Accepts' and 'Supplies' texts. */
    StationCoverageType sct = (this->window_class == WC_BUS_STATION) ? SCT_PASSENGERS_ONLY : SCT_NON_PASSENGERS_ONLY;
    int top = this->GetWidget<NWidgetBase>(WID_BROS_LT_ON)->pos_y + this->GetWidget<NWidgetBase>(WID_BROS_LT_ON)->current_y + WD_PAR_VSEP_NORMAL;
    NWidgetBase *back_nwi = this->GetWidget<NWidgetBase>(WID_BROS_BACKGROUND);
    int right = back_nwi->pos_x +  back_nwi->current_x;
    int bottom = back_nwi->pos_y +  back_nwi->current_y;
    top = DrawStationCoverageAreaText(back_nwi->pos_x + WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, top, sct, rad, false) + WD_PAR_VSEP_NORMAL;
    top = DrawStationCoverageAreaText(back_nwi->pos_x + WD_FRAMERECT_LEFT, right - WD_FRAMERECT_RIGHT, top, sct, rad, true) + WD_PAR_VSEP_NORMAL;
    /* 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 > bottom) {
      ResizeWindow(this, 0, top - bottom, false);
    }
  }

  void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize) override
  {
    if (!IsInsideMM(widget, WID_BROS_STATION_NE, WID_BROS_STATION_Y + 1)) return;

    size->width  = ScaleGUITrad(64) + 2;
    size->height = ScaleGUITrad(48) + 2;
  }

  void DrawWidget(const Rect &r, int widget) const override
  {
    if (!IsInsideMM(widget, WID_BROS_STATION_NE, WID_BROS_STATION_Y + 1)) return;

    StationType st = (this->window_class == WC_BUS_STATION) ? STATION_BUS : STATION_TRUCK;
    StationPickerDrawSprite(r.left + 1 + ScaleGUITrad(31), r.bottom - ScaleGUITrad(31), st, INVALID_RAILTYPE, _cur_roadtype, widget - WID_BROS_STATION_NE);
  }

  void OnClick(Point pt, int widget, 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:
        this->RaiseWidget(_road_station_picker_orientation + WID_BROS_STATION_NE);
        _road_station_picker_orientation = (DiagDirection)(widget - WID_BROS_STATION_NE);
        this->LowerWidget(_road_station_picker_orientation + WID_BROS_STATION_NE);
        if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
        this->SetDirty();
        DeleteWindowById(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();
        break;

      default:
        break;
    }
  }

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

static const NWidgetPart _nested_road_station_picker_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    NWidget(WWT_CAPTION,  COLOUR_DARK_GREEN, WID_BROS_CAPTION),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BROS_BACKGROUND),
    NWidget(NWID_SPACER), SetMinimalSize(0, 3),
    NWidget(NWID_HORIZONTAL), SetPIP(0, 2, 0),
      NWidget(NWID_SPACER), SetFill(1, 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(),
      NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_X),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 2),
    NWidget(NWID_HORIZONTAL), SetPIP(0, 2, 0),
      NWidget(NWID_SPACER), SetFill(1, 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(),
      NWidget(WWT_PANEL, COLOUR_GREY, WID_BROS_STATION_Y),  SetMinimalSize(66, 50), SetFill(0, 0), EndContainer(),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 1),
    NWidget(NWID_HORIZONTAL), SetPIP(2, 0, 2),
      NWidget(WWT_LABEL, COLOUR_DARK_GREEN, WID_BROS_INFO), SetMinimalSize(140, 14), SetDataTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE, STR_NULL),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_HORIZONTAL), SetPIP(2, 0, 2),
      NWidget(NWID_SPACER), SetFill(1, 0),
      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),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 10), SetResize(0, 1),
  EndContainer(),
};

static WindowDesc _road_station_picker_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_BUS_STATION, WC_BUILD_TOOLBAR,
  WDF_CONSTRUCTION,
  _nested_road_station_picker_widgets, lengthof(_nested_road_station_picker_widgets)
);

static const NWidgetPart _nested_tram_station_picker_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    NWidget(WWT_CAPTION,  COLOUR_DARK_GREEN, WID_BROS_CAPTION),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BROS_BACKGROUND),
    NWidget(NWID_SPACER), SetMinimalSize(0, 3),
    NWidget(NWID_HORIZONTAL), SetPIP(0, 2, 0),
      NWidget(NWID_SPACER), SetFill(1, 0),
      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(),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 1),
    NWidget(NWID_HORIZONTAL), SetPIP(2, 0, 2),
      NWidget(WWT_LABEL, COLOUR_DARK_GREEN, WID_BROS_INFO), SetMinimalSize(140, 14), SetDataTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE, STR_NULL),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_HORIZONTAL), SetPIP(2, 0, 2),
      NWidget(NWID_SPACER), SetFill(1, 0),
      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),
      NWidget(NWID_SPACER), SetFill(1, 0),
    EndContainer(),
    NWidget(NWID_SPACER), SetMinimalSize(0, 10), SetResize(0, 1),
  EndContainer(),
};

static WindowDesc _tram_station_picker_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_BUS_STATION, WC_BUILD_TOOLBAR,
  WDF_CONSTRUCTION,
  _nested_tram_station_picker_widgets, lengthof(_nested_tram_station_picker_widgets)
);

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;
  _road_station_picker_orientation = DIAGDIR_NW;
}

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.emplace_back(new DropDownListStringItem(STR_REPLACE_ALL_ROADTYPE, INVALID_ROADTYPE, false));
  }

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

  FOR_ALL_SORTED_ROADTYPES(rt) {
    /* If it's not used ever, don't show it to the user. */
    if (!HasBit(used_roadtypes, rt)) continue;

    const RoadTypeInfo *rti = GetRoadTypeInfo(rt);

    DropDownListParamStringItem *item;
    if (for_replacement) {
      item = new DropDownListParamStringItem(rti->strings.replace_text, rt, !HasBit(avail_roadtypes, rt));
    } else {
      StringID str = rti->max_speed > 0 ? STR_TOOLBAR_RAILTYPE_VELOCITY : STR_JUST_STRING;
      DropDownListIconItem *iconitem = new DropDownListIconItem(rti->gui_sprites.build_x_road, PAL_NONE, str, rt, !HasBit(avail_roadtypes, rt));
      iconitem->SetDimension(d);
      item = iconitem;
    }
    item->SetParam(0, rti->strings.menu_text);
    item->SetParam(1, rti->max_speed / 2);
    list.emplace_back(item);
  }

  if (list.size() == 0) {
    /* Empty dropdowns are not allowed */
    list.emplace_back(new DropDownListStringItem(STR_NONE, INVALID_ROADTYPE, true));
  }

  return list;
}

DropDownList GetScenRoadTypeDropDownList(RoadTramTypes rtts)
{
  RoadTypes avail_roadtypes = GetRoadTypes(false);
  avail_roadtypes = AddDateIntroducedRoadTypes(avail_roadtypes, _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 };
  RoadType rt;
  FOR_ALL_SORTED_ROADTYPES(rt) {
    if (!HasBit(used_roadtypes, rt)) continue;
    const RoadTypeInfo *rti = GetRoadTypeInfo(rt);
    d = maxdim(d, GetSpriteSize(rti->gui_sprites.build_x_road));
  }
  FOR_ALL_SORTED_ROADTYPES(rt) {
    if (!HasBit(used_roadtypes, rt)) continue;

    const RoadTypeInfo *rti = GetRoadTypeInfo(rt);

    StringID str = rti->max_speed > 0 ? STR_TOOLBAR_RAILTYPE_VELOCITY : STR_JUST_STRING;
    DropDownListIconItem *item = new DropDownListIconItem(rti->gui_sprites.build_x_road, PAL_NONE, str, rt, !HasBit(avail_roadtypes, rt));
    item->SetDimension(d);
    item->SetParam(0, rti->strings.menu_text);
    item->SetParam(1, rti->max_speed);
    list.emplace_back(item);
  }

  if (list.size() == 0) {
    /* Empty dropdowns are not allowed */
    list.emplace_back(new DropDownListStringItem(STR_NONE, -1, true));
  }

  return list;
}