dock_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 "terraform_gui.h"
#include "window_gui.h"
#include "station_gui.h"
#include "command_func.h"
#include "water.h"
#include "window_func.h"
#include "vehicle_func.h"
#include "sound_func.h"
#include "viewport_func.h"
#include "gfx_func.h"
#include "company_func.h"
#include "slope_func.h"
#include "tilehighlight_func.h"
#include "company_base.h"
#include "hotkeys.h"
#include "gui.h"
#include "zoom_func.h"
#include "tunnelbridge_cmd.h"
#include "dock_cmd.h"
#include "station_cmd.h"
#include "water_cmd.h"
#include "waypoint_cmd.h"
#include "timer/timer.h"
#include "timer/timer_game_calendar.h"
 
#include "widgets/dock_widget.h"
 
#include "table/sprites.h"
#include "table/strings.h"
 
#include "safeguards.h"
 
static void ShowBuildDockStationPicker(Window *parent);
static void ShowBuildDocksDepotPicker(Window *parent);
 
static Axis _ship_depot_direction;
 
void CcBuildDocks(Commands, const CommandCost &result, TileIndex tile)
{
  if (result.Failed()) return;
 
  if (_settings_client.sound.confirm) SndPlayTileFx(SND_02_CONSTRUCTION_WATER, tile);
  if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
}
 
void CcPlaySound_CONSTRUCTION_WATER(Commands, const CommandCost &result, TileIndex tile)
{
  if (result.Succeeded() && _settings_client.sound.confirm) SndPlayTileFx(SND_02_CONSTRUCTION_WATER, tile);
}
 
 
static TileIndex GetOtherAqueductEnd(TileIndex tile_from, TileIndex *tile_to = nullptr)
{
  auto [slope, z] = GetTileSlopeZ(tile_from);
  DiagDirection dir = GetInclinedSlopeDirection(slope);
 
  /* If the direction isn't right, just return the next tile so the command
   * complains about the wrong slope instead of the ends not matching up.
   * Make sure the coordinate is always a valid tile within the map, so we
   * don't go "off" the map. That would cause the wrong error message. */
  if (!IsValidDiagDirection(dir)) return TileAddXY(tile_from, TileX(tile_from) > 2 ? -1 : 1, 0);
 
  /* Direction the aqueduct is built to. */
  TileIndexDiff offset = TileOffsByDiagDir(ReverseDiagDir(dir));
  /* The maximum length of the aqueduct. */
  int max_length = std::min<int>(_settings_game.construction.max_bridge_length, DistanceFromEdgeDir(tile_from, ReverseDiagDir(dir)) - 1);
 
  TileIndex endtile = tile_from;
  for (int length = 0; IsValidTile(endtile) && TileX(endtile) != 0 && TileY(endtile) != 0; length++) {
    endtile = TileAdd(endtile, offset);
 
    if (length > max_length) break;
 
    if (GetTileMaxZ(endtile) > z) {
      if (tile_to != nullptr) *tile_to = endtile;
      break;
    }
  }
 
  return endtile;
}
 
struct BuildDocksToolbarWindow : Window {
  DockToolbarWidgets last_clicked_widget = WID_DT_INVALID; 
 
  BuildDocksToolbarWindow(WindowDesc &desc, WindowNumber window_number) : Window(desc)
  {
    this->InitNested(window_number);
    this->OnInvalidateData();
    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_DT_STATION)) SetViewportCatchmentStation(nullptr, true);
    if (_settings_client.gui.link_terraform_toolbar) CloseWindowById(WC_SCEN_LAND_GEN, 0, false);
    this->Window::Close();
  }
 
  void OnInvalidateData([[maybe_unused]] int data = 0, [[maybe_unused]] bool gui_scope = true) override
  {
    if (!gui_scope) return;
 
    bool can_build = CanBuildVehicleInfrastructure(VEH_SHIP);
    this->SetWidgetsDisabledState(!can_build,
      WID_DT_DEPOT,
      WID_DT_STATION,
      WID_DT_BUOY);
    if (!can_build) {
      CloseWindowById(WC_BUILD_STATION, TRANSPORT_WATER);
      CloseWindowById(WC_BUILD_DEPOT, TRANSPORT_WATER);
    }
 
    if (_game_mode != GM_EDITOR) {
      if (!can_build) {
        /* Show in the tooltip why this button is disabled. */
        this->GetWidget<NWidgetCore>(WID_DT_DEPOT)->SetToolTip(STR_TOOLBAR_DISABLED_NO_VEHICLE_AVAILABLE);
        this->GetWidget<NWidgetCore>(WID_DT_STATION)->SetToolTip(STR_TOOLBAR_DISABLED_NO_VEHICLE_AVAILABLE);
        this->GetWidget<NWidgetCore>(WID_DT_BUOY)->SetToolTip(STR_TOOLBAR_DISABLED_NO_VEHICLE_AVAILABLE);
      } else {
        this->GetWidget<NWidgetCore>(WID_DT_DEPOT)->SetToolTip(STR_WATERWAYS_TOOLBAR_BUILD_DEPOT_TOOLTIP);
        this->GetWidget<NWidgetCore>(WID_DT_STATION)->SetToolTip(STR_WATERWAYS_TOOLBAR_BUILD_DOCK_TOOLTIP);
        this->GetWidget<NWidgetCore>(WID_DT_BUOY)->SetToolTip(STR_WATERWAYS_TOOLBAR_BUOY_TOOLTIP);
      }
    }
  }
 
  void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
  {
    switch (widget) {
      case WID_DT_CANAL: // Build canal button
        if (_game_mode == GM_EDITOR) {
          HandlePlacePushButton(this, WID_DT_CANAL, SPR_CURSOR_CANAL, HT_RECT);
        } else {
          HandlePlacePushButton(this, WID_DT_CANAL, SPR_CURSOR_CANAL, HT_RECT | HT_DIAGONAL);
        }
        break;
 
      case WID_DT_LOCK: // Build lock button
        HandlePlacePushButton(this, WID_DT_LOCK, SPR_CURSOR_LOCK, HT_SPECIAL);
        break;
 
      case WID_DT_DEMOLISH: // Demolish aka dynamite button
        HandlePlacePushButton(this, WID_DT_DEMOLISH, ANIMCURSOR_DEMOLISH, HT_RECT | HT_DIAGONAL);
        break;
 
      case WID_DT_DEPOT: // Build depot button
        if (HandlePlacePushButton(this, WID_DT_DEPOT, SPR_CURSOR_SHIP_DEPOT, HT_RECT)) ShowBuildDocksDepotPicker(this);
        break;
 
      case WID_DT_STATION: // Build station button
        if (HandlePlacePushButton(this, WID_DT_STATION, SPR_CURSOR_DOCK, HT_SPECIAL)) ShowBuildDockStationPicker(this);
        break;
 
      case WID_DT_BUOY: // Build buoy button
        HandlePlacePushButton(this, WID_DT_BUOY, SPR_CURSOR_BUOY, HT_RECT);
        break;
 
      case WID_DT_RIVER: // Build river button (in scenario editor)
        if (_game_mode != GM_EDITOR) return;
        HandlePlacePushButton(this, WID_DT_RIVER, SPR_CURSOR_RIVER, HT_RECT | HT_DIAGONAL);
        break;
 
      case WID_DT_BUILD_AQUEDUCT: // Build aqueduct button
        HandlePlacePushButton(this, WID_DT_BUILD_AQUEDUCT, SPR_CURSOR_AQUEDUCT, HT_SPECIAL);
        break;
 
      default: return;
    }
    this->last_clicked_widget = (DockToolbarWidgets)widget;
  }
 
  void OnPlaceObject([[maybe_unused]] Point pt, TileIndex tile) override
  {
    switch (this->last_clicked_widget) {
      case WID_DT_CANAL: // Build canal button
        VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_CREATE_WATER);
        break;
 
      case WID_DT_LOCK: // Build lock button
        Command<CMD_BUILD_LOCK>::Post(STR_ERROR_CAN_T_BUILD_LOCKS, CcBuildDocks, tile);
        break;
 
      case WID_DT_DEMOLISH: // Demolish aka dynamite button
        PlaceProc_DemolishArea(tile);
        break;
 
      case WID_DT_DEPOT: // Build depot button
        Command<CMD_BUILD_SHIP_DEPOT>::Post(STR_ERROR_CAN_T_BUILD_SHIP_DEPOT, CcBuildDocks, tile, _ship_depot_direction);
        break;
 
      case WID_DT_STATION: { // Build station button
        /* Determine the watery part of the dock. */
        DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile));
        TileIndex tile_to = (dir != INVALID_DIAGDIR ? TileAddByDiagDir(tile, ReverseDiagDir(dir)) : tile);
 
        bool adjacent = _ctrl_pressed;
        auto proc = [=](bool test, StationID to_join) -> bool {
          if (test) {
            return Command<CMD_BUILD_DOCK>::Do(CommandFlagsToDCFlags(GetCommandFlags<CMD_BUILD_DOCK>()), tile, StationID::Invalid(), adjacent).Succeeded();
          } else {
            return Command<CMD_BUILD_DOCK>::Post(STR_ERROR_CAN_T_BUILD_DOCK_HERE, CcBuildDocks, tile, to_join, adjacent);
          }
        };
 
        ShowSelectStationIfNeeded(TileArea(tile, tile_to), proc);
        break;
      }
 
      case WID_DT_BUOY: // Build buoy button
        Command<CMD_BUILD_BUOY>::Post(STR_ERROR_CAN_T_POSITION_BUOY_HERE, CcBuildDocks, tile);
        break;
 
      case WID_DT_RIVER: // Build river button (in scenario editor)
        VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_CREATE_RIVER);
        break;
 
      case WID_DT_BUILD_AQUEDUCT: // Build aqueduct button
        Command<CMD_BUILD_BRIDGE>::Post(STR_ERROR_CAN_T_BUILD_AQUEDUCT_HERE, CcBuildBridge, tile, GetOtherAqueductEnd(tile), TRANSPORT_WATER, 0, 0);
        break;
 
      default: NOT_REACHED();
    }
  }
 
  void OnPlaceDrag(ViewportPlaceMethod select_method, [[maybe_unused]] ViewportDragDropSelectionProcess select_proc, [[maybe_unused]] Point pt) override
  {
    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) {
        case DDSP_DEMOLISH_AREA:
          GUIPlaceProcDragXY(select_proc, start_tile, end_tile);
          break;
        case DDSP_CREATE_WATER:
          if (_game_mode == GM_EDITOR) {
            Command<CMD_BUILD_CANAL>::Post(STR_ERROR_CAN_T_BUILD_CANALS, CcPlaySound_CONSTRUCTION_WATER, end_tile, start_tile, _ctrl_pressed ? WATER_CLASS_SEA : WATER_CLASS_CANAL, false);
          } else {
            Command<CMD_BUILD_CANAL>::Post(STR_ERROR_CAN_T_BUILD_CANALS, CcPlaySound_CONSTRUCTION_WATER, end_tile, start_tile, WATER_CLASS_CANAL, _ctrl_pressed);
          }
          break;
        case DDSP_CREATE_RIVER:
          Command<CMD_BUILD_CANAL>::Post(STR_ERROR_CAN_T_PLACE_RIVERS, CcPlaySound_CONSTRUCTION_WATER, end_tile, start_tile, WATER_CLASS_RIVER, _ctrl_pressed);
          break;
 
        default: break;
      }
    }
  }
 
  void OnPlaceObjectAbort() override
  {
    if (_game_mode != GM_EDITOR && this->IsWidgetLowered(WID_DT_STATION)) SetViewportCatchmentStation(nullptr, true);
 
    this->RaiseButtons();
 
    CloseWindowById(WC_BUILD_STATION, TRANSPORT_WATER);
    CloseWindowById(WC_BUILD_DEPOT, TRANSPORT_WATER);
    CloseWindowById(WC_SELECT_STATION, 0);
    CloseWindowByClass(WC_BUILD_BRIDGE);
  }
 
  void OnPlacePresize([[maybe_unused]] Point pt, TileIndex tile_from) override
  {
    TileIndex tile_to = tile_from;
 
    if (this->last_clicked_widget == WID_DT_BUILD_AQUEDUCT) {
      GetOtherAqueductEnd(tile_from, &tile_to);
    } else {
      DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile_from));
      if (IsValidDiagDirection(dir)) {
        /* Locks and docks always select the tile "down" the slope. */
        tile_to = TileAddByDiagDir(tile_from, ReverseDiagDir(dir));
        /* Locks also select the tile "up" the slope. */
        if (this->last_clicked_widget == WID_DT_LOCK) tile_from = TileAddByDiagDir(tile_from, dir);
      }
    }
 
    VpSetPresizeRange(tile_from, tile_to);
  }
 
  static EventState DockToolbarGlobalHotkeys(int hotkey)
  {
    if (_game_mode != GM_NORMAL) return ES_NOT_HANDLED;
    Window *w = ShowBuildDocksToolbar();
    if (w == nullptr) return ES_NOT_HANDLED;
    return w->OnHotkey(hotkey);
  }
 
  static inline HotkeyList hotkeys{"dockstoolbar", {
    Hotkey('1', "canal", WID_DT_CANAL),
    Hotkey('2', "lock", WID_DT_LOCK),
    Hotkey('3', "demolish", WID_DT_DEMOLISH),
    Hotkey('4', "depot", WID_DT_DEPOT),
    Hotkey('5', "dock", WID_DT_STATION),
    Hotkey('6', "buoy", WID_DT_BUOY),
    Hotkey('7', "river", WID_DT_RIVER),
    Hotkey({'B', '8'}, "aqueduct", WID_DT_BUILD_AQUEDUCT),
  }, DockToolbarGlobalHotkeys};
};
 
static constexpr NWidgetPart _nested_build_docks_toolbar_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetStringTip(STR_WATERWAYS_TOOLBAR_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
  EndContainer(),
  NWidget(NWID_HORIZONTAL_LTR),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_CANAL), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_BUILD_CANAL, STR_WATERWAYS_TOOLBAR_BUILD_CANALS_TOOLTIP),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_LOCK), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_BUILD_LOCK, STR_WATERWAYS_TOOLBAR_BUILD_LOCKS_TOOLTIP),
    NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetMinimalSize(5, 22), SetFill(1, 1), EndContainer(),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_DEMOLISH), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_DEPOT), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_SHIP_DEPOT, STR_WATERWAYS_TOOLBAR_BUILD_DEPOT_TOOLTIP),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_STATION), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_SHIP_DOCK, STR_WATERWAYS_TOOLBAR_BUILD_DOCK_TOOLTIP),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_BUOY), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_BUOY, STR_WATERWAYS_TOOLBAR_BUOY_TOOLTIP),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_BUILD_AQUEDUCT), SetMinimalSize(23, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_AQUEDUCT, STR_WATERWAYS_TOOLBAR_BUILD_AQUEDUCT_TOOLTIP),
  EndContainer(),
};
 
static WindowDesc _build_docks_toolbar_desc(
  WDP_ALIGN_TOOLBAR, "toolbar_water", 0, 0,
  WC_BUILD_TOOLBAR, WC_NONE,
  WindowDefaultFlag::Construction,
  _nested_build_docks_toolbar_widgets,
  &BuildDocksToolbarWindow::hotkeys
);
 
Window *ShowBuildDocksToolbar()
{
  if (!Company::IsValidID(_local_company)) return nullptr;
 
  CloseWindowByClass(WC_BUILD_TOOLBAR);
  return AllocateWindowDescFront<BuildDocksToolbarWindow>(_build_docks_toolbar_desc, TRANSPORT_WATER);
}
 
static constexpr NWidgetPart _nested_build_docks_scen_toolbar_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetStringTip(STR_WATERWAYS_TOOLBAR_CAPTION_SE, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
  EndContainer(),
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_CANAL), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_BUILD_CANAL, STR_WATERWAYS_TOOLBAR_CREATE_LAKE_TOOLTIP),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_LOCK), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_BUILD_LOCK, STR_WATERWAYS_TOOLBAR_BUILD_LOCKS_TOOLTIP),
    NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetMinimalSize(5, 22), SetFill(1, 1), EndContainer(),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_DEMOLISH), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_RIVER), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_BUILD_RIVER, STR_WATERWAYS_TOOLBAR_CREATE_RIVER_TOOLTIP),
    NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, WID_DT_BUILD_AQUEDUCT), SetMinimalSize(22, 22), SetFill(0, 1), SetSpriteTip(SPR_IMG_AQUEDUCT, STR_WATERWAYS_TOOLBAR_BUILD_AQUEDUCT_TOOLTIP),
  EndContainer(),
};
 
static WindowDesc _build_docks_scen_toolbar_desc(
  WDP_AUTO, "toolbar_water_scen", 0, 0,
  WC_SCEN_BUILD_TOOLBAR, WC_NONE,
  WindowDefaultFlag::Construction,
  _nested_build_docks_scen_toolbar_widgets
);
 
Window *ShowBuildDocksScenToolbar()
{
  return AllocateWindowDescFront<BuildDocksToolbarWindow>(_build_docks_scen_toolbar_desc, TRANSPORT_WATER);
}
 
enum BuildDockStationWidgets {
  BDSW_BACKGROUND, 
  BDSW_LT_OFF,     
  BDSW_LT_ON,      
  BDSW_INFO,       
  BDSW_ACCEPTANCE, 
};
 
struct BuildDocksStationWindow : public PickerWindowBase {
public:
  BuildDocksStationWindow(WindowDesc &desc, Window *parent) : PickerWindowBase(desc, parent)
  {
    this->InitNested(TRANSPORT_WATER);
    this->LowerWidget(_settings_client.gui.station_show_coverage + BDSW_LT_OFF);
  }
 
  void Close([[maybe_unused]] int data = 0) override
  {
    CloseWindowById(WC_SELECT_STATION, 0);
    this->PickerWindowBase::Close();
  }
 
  void OnPaint() override
  {
    int rad = (_settings_game.station.modified_catchment) ? CA_DOCK : CA_UNMODIFIED;
 
    this->DrawWidgets();
 
    if (_settings_client.gui.station_show_coverage) {
      SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad);
    } else {
      SetTileSelectSize(1, 1);
    }
 
    /* strings such as 'Size' and 'Coverage Area' */
    Rect r = this->GetWidget<NWidgetBase>(BDSW_ACCEPTANCE)->GetCurrentRect();
    const int bottom = r.bottom;
    r.bottom = INT_MAX; // Allow overflow as we want to know the required height.
    r.top = DrawStationCoverageAreaText(r, SCT_ALL, rad, false) + WidgetDimensions::scaled.vsep_normal;
    r.top = DrawStationCoverageAreaText(r, SCT_ALL, 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 (r.top > bottom) {
      ResizeWindow(this, 0, r.top - bottom, false);
    }
  }
 
  void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
  {
    switch (widget) {
      case BDSW_LT_OFF:
      case BDSW_LT_ON:
        this->RaiseWidget(_settings_client.gui.station_show_coverage + BDSW_LT_OFF);
        _settings_client.gui.station_show_coverage = (widget != BDSW_LT_OFF);
        this->LowerWidget(_settings_client.gui.station_show_coverage + BDSW_LT_OFF);
        if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
        this->SetDirty();
        SetViewportCatchmentStation(nullptr, true);
        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 constexpr NWidgetPart _nested_build_dock_station_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetStringTip(STR_STATION_BUILD_DOCK_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BDSW_BACKGROUND),
    NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_normal, 0), SetPadding(WidgetDimensions::unscaled.picker),
      NWidget(NWID_VERTICAL), SetPIP(0, WidgetDimensions::unscaled.vsep_picker, 0),
        NWidget(WWT_LABEL, INVALID_COLOUR, BDSW_INFO), SetStringTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE), SetFill(1, 0),
        NWidget(NWID_HORIZONTAL, NWidContainerFlag::EqualSize), SetPIP(14, 0, 14),
          NWidget(WWT_TEXTBTN, COLOUR_GREY, BDSW_LT_OFF), SetMinimalSize(60, 12), SetFill(1, 0), SetStringTip(STR_STATION_BUILD_COVERAGE_OFF, STR_STATION_BUILD_COVERAGE_AREA_OFF_TOOLTIP),
          NWidget(WWT_TEXTBTN, COLOUR_GREY, BDSW_LT_ON), SetMinimalSize(60, 12), SetFill(1, 0), SetStringTip(STR_STATION_BUILD_COVERAGE_ON, STR_STATION_BUILD_COVERAGE_AREA_ON_TOOLTIP),
        EndContainer(),
      EndContainer(),
      NWidget(WWT_EMPTY, INVALID_COLOUR, BDSW_ACCEPTANCE), SetResize(0, 1), SetMinimalTextLines(2, WidgetDimensions::unscaled.vsep_normal),
    EndContainer(),
  EndContainer(),
};
 
static WindowDesc _build_dock_station_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_BUILD_STATION, WC_BUILD_TOOLBAR,
  WindowDefaultFlag::Construction,
  _nested_build_dock_station_widgets
);
 
static void ShowBuildDockStationPicker(Window *parent)
{
  new BuildDocksStationWindow(_build_dock_station_desc, parent);
}
 
struct BuildDocksDepotWindow : public PickerWindowBase {
private:
  static void UpdateDocksDirection()
  {
    if (_ship_depot_direction != AXIS_X) {
      SetTileSelectSize(1, 2);
    } else {
      SetTileSelectSize(2, 1);
    }
  }
 
public:
  BuildDocksDepotWindow(WindowDesc &desc, Window *parent) : PickerWindowBase(desc, parent)
  {
    this->InitNested(TRANSPORT_WATER);
    this->LowerWidget(WID_BDD_X + _ship_depot_direction);
    UpdateDocksDirection();
  }
 
  void UpdateWidgetSize(WidgetID widget, Dimension &size, [[maybe_unused]] const Dimension &padding, [[maybe_unused]] Dimension &fill, [[maybe_unused]] Dimension &resize) override
  {
    switch (widget) {
      case WID_BDD_X:
      case WID_BDD_Y:
        size.width  = ScaleGUITrad(96) + WidgetDimensions::scaled.fullbevel.Horizontal();
        size.height = ScaleGUITrad(64) + WidgetDimensions::scaled.fullbevel.Vertical();
        break;
    }
  }
 
  void DrawWidget(const Rect &r, WidgetID widget) const override
  {
    DrawPixelInfo tmp_dpi;
 
    switch (widget) {
      case WID_BDD_X:
      case WID_BDD_Y: {
        Axis axis = widget == WID_BDD_X ? AXIS_X : AXIS_Y;
 
        Rect ir = r.Shrink(WidgetDimensions::scaled.bevel);
        if (FillDrawPixelInfo(&tmp_dpi, ir)) {
          AutoRestoreBackup dpi_backup(_cur_dpi, &tmp_dpi);
          int x = (ir.Width()  - ScaleSpriteTrad(96)) / 2;
          int y = (ir.Height() - ScaleSpriteTrad(64)) / 2;
          int x1 = ScaleSpriteTrad(63);
          int x2 = ScaleSpriteTrad(31);
          DrawShipDepotSprite(x + (axis == AXIS_X ? x1 : x2), y + ScaleSpriteTrad(17), axis, DEPOT_PART_NORTH);
          DrawShipDepotSprite(x + (axis == AXIS_X ? x2 : x1), y + ScaleSpriteTrad(33), axis, DEPOT_PART_SOUTH);
        }
        break;
      }
    }
  }
 
  void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
  {
    switch (widget) {
      case WID_BDD_X:
      case WID_BDD_Y:
        this->RaiseWidget(WID_BDD_X + _ship_depot_direction);
        _ship_depot_direction = (widget == WID_BDD_X ? AXIS_X : AXIS_Y);
        this->LowerWidget(WID_BDD_X + _ship_depot_direction);
        if (_settings_client.sound.click_beep) SndPlayFx(SND_15_BEEP);
        UpdateDocksDirection();
        this->SetDirty();
        break;
    }
  }
};
 
static constexpr NWidgetPart _nested_build_docks_depot_widgets[] = {
  NWidget(NWID_HORIZONTAL),
    NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetStringTip(STR_DEPOT_BUILD_SHIP_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
  EndContainer(),
  NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_BDD_BACKGROUND),
    NWidget(NWID_HORIZONTAL_LTR), SetPIP(0, WidgetDimensions::unscaled.hsep_normal, 0), SetPIPRatio(1, 0, 1), SetPadding(WidgetDimensions::unscaled.picker),
      NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BDD_X), SetToolTip(STR_DEPOT_BUILD_SHIP_ORIENTATION_TOOLTIP),
      NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_BDD_Y), SetToolTip(STR_DEPOT_BUILD_SHIP_ORIENTATION_TOOLTIP),
    EndContainer(),
  EndContainer(),
};
 
static WindowDesc _build_docks_depot_desc(
  WDP_AUTO, nullptr, 0, 0,
  WC_BUILD_DEPOT, WC_BUILD_TOOLBAR,
  WindowDefaultFlag::Construction,
  _nested_build_docks_depot_widgets
);
 
 
static void ShowBuildDocksDepotPicker(Window *parent)
{
  new BuildDocksDepotWindow(_build_docks_depot_desc, parent);
}
 
 
void InitializeDockGui()
{
  _ship_depot_direction = AXIS_X;
}