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/* $Id$ */

/*
* 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 "table/strings.h"

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

static bool _remove_button_clicked;
static bool _one_way_button_clicked;

/**
* Define the values of the RoadFlags
* @see CmdBuildLongRoad
*/
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 CcPlaySound1D(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
{
if (result.Succeeded()) SndPlayTileFx(SND_1F_SPLAT, 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, tile, other_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.
* @param p1 bit 0-3 railtype or roadtypes
* bit 8-9 transport type
* @param p2 unused
*/
void CcBuildRoadTunnel(const CommandCost &result, TileIndex start_tile, uint32 p1, uint32 p2)
{
if (result.Succeeded()) {
SndPlayTileFx(SND_20_SPLAT_2, 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);
}
}

/** Structure holding information per roadtype for several functions */
struct RoadTypeInfo {
StringID err_build_road; ///< Building a normal piece of road
StringID err_remove_road; ///< Removing a normal piece of road
StringID err_depot; ///< Building a depot
StringID err_build_station[2]; ///< Building a bus or truck station
StringID err_remove_station[2]; ///< Removing of a bus or truck station

StringID picker_title[2]; ///< Title for the station picker for bus or truck stations
StringID picker_tooltip[2]; ///< Tooltip for the station picker for bus or truck stations

SpriteID cursor_nesw; ///< Cursor for building NE and SW bits
SpriteID cursor_nwse; ///< Cursor for building NW and SE bits
SpriteID cursor_autoroad; ///< Cursor for building autoroad
};

/** What errors/cursors must be shown for several types of roads */
static const RoadTypeInfo _road_type_infos[] = {
{
STR_ERROR_CAN_T_BUILD_ROAD_HERE,
STR_ERROR_CAN_T_REMOVE_ROAD_FROM,
STR_ERROR_CAN_T_BUILD_ROAD_DEPOT,
{ STR_ERROR_CAN_T_BUILD_BUS_STATION, STR_ERROR_CAN_T_BUILD_TRUCK_STATION },
{ STR_ERROR_CAN_T_REMOVE_BUS_STATION, STR_ERROR_CAN_T_REMOVE_TRUCK_STATION },
{ STR_STATION_BUILD_BUS_ORIENTATION, STR_STATION_BUILD_TRUCK_ORIENTATION },
{ STR_STATION_BUILD_BUS_ORIENTATION_TOOLTIP, STR_STATION_BUILD_TRUCK_ORIENTATION_TOOLTIP },

SPR_CURSOR_ROAD_NESW,
SPR_CURSOR_ROAD_NWSE,
SPR_CURSOR_AUTOROAD,
},
{
STR_ERROR_CAN_T_BUILD_TRAMWAY_HERE,
STR_ERROR_CAN_T_REMOVE_TRAMWAY_FROM,
STR_ERROR_CAN_T_BUILD_TRAM_DEPOT,
{ STR_ERROR_CAN_T_BUILD_PASSENGER_TRAM_STATION, STR_ERROR_CAN_T_BUILD_CARGO_TRAM_STATION },
{ STR_ERROR_CAN_T_REMOVE_PASSENGER_TRAM_STATION, STR_ERROR_CAN_T_REMOVE_CARGO_TRAM_STATION },
{ STR_STATION_BUILD_PASSENGER_TRAM_ORIENTATION, STR_STATION_BUILD_CARGO_TRAM_ORIENTATION },
{ STR_STATION_BUILD_PASSENGER_TRAM_ORIENTATION_TOOLTIP, STR_STATION_BUILD_CARGO_TRAM_ORIENTATION_TOOLTIP },

SPR_CURSOR_TRAMWAY_NESW,
SPR_CURSOR_TRAMWAY_NWSE,
SPR_CURSOR_AUTOTRAM,
},
};

/**
* 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, _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)
{
if (result.Failed()) return;

DiagDirection dir = (DiagDirection)GB(p1, 0, 2);
SndPlayTileFx(SND_1F_SPLAT, 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 p1 bit 0..7: Width of the road stop.
* bit 8..15: Length of the road stop.
* @param p2 bit 0: 0 For bus stops, 1 for truck stops.
* bit 1: 0 For normal stops, 1 for drive-through.
* bit 2..3: The roadtypes.
* bit 5: Allow stations directly adjacent to other stations.
* bit 6..7: Entrance direction (#DiagDirection).
* bit 16..31: Station ID to join (NEW_STATION if build new one).
* @see CmdBuildRoadStop
*/
void CcRoadStop(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
{
if (result.Failed()) return;

DiagDirection dir = (DiagDirection)GB(p2, 6, 2);
SndPlayTileFx(SND_1F_SPLAT, 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));
}
}

/**
* Place a new road stop.
* @param start_tile First tile of the area.
* @param end_tile Last tile of the area.
* @param p2 bit 0: 0 For bus stops, 1 for truck stops.
* bit 2..3: The roadtypes.
* bit 5: Allow stations directly adjacent to other stations.
* @param cmd Command to use.
* @see CcRoadStop()
*/
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 << 6; // Set the DiagDirecion into p2 bits 6 and 7.

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

/**
* 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 (_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);
}
}

/**
* 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 (_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);
}
}

/** Enum referring to the widgets of the build road toolbar */
enum RoadToolbarWidgets {
RTW_ROAD_X,
RTW_ROAD_Y,
RTW_AUTOROAD,
RTW_DEMOLISH,
RTW_DEPOT,
RTW_BUS_STATION,
RTW_TRUCK_STATION,
RTW_ONE_WAY,
RTW_BUILD_BRIDGE,
RTW_BUILD_TUNNEL,
RTW_REMOVE,
};

typedef void OnButtonClick(Window *w);


/**
* Toogles state of the Remove button of Build road toolbar
* @param w window the button belongs to
*/
static void ToggleRoadButton_Remove(Window *w)
{
w->ToggleWidgetLoweredState(RTW_REMOVE);
w->SetWidgetDirty(RTW_REMOVE);
_remove_button_clicked = w->IsWidgetLowered(RTW_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 buton was changed
*/
static bool RoadToolbar_CtrlChanged(Window *w)
{
if (w->IsWidgetDisabled(RTW_REMOVE)) return false;

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

return false;
}

/** Road toolbar window handler. */
struct BuildRoadToolbarWindow : Window {
int last_started_action; ///< Last started user action.

BuildRoadToolbarWindow(const WindowDesc *desc, WindowNumber window_number) : Window()
{
this->InitNested(desc, window_number);
this->SetWidgetsDisabledState(true,
RTW_REMOVE,
RTW_ONE_WAY,
WIDGET_LIST_END);

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

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

~BuildRoadToolbarWindow()
{
if (_settings_client.gui.link_terraform_toolbar) DeleteWindowById(WC_SCEN_LAND_GEN, 0, false);
}

/**
* 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.
*/
virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
{
if (!gui_scope) return;
this->SetWidgetsDisabledState(!CanBuildVehicleInfrastructure(VEH_ROAD),
RTW_DEPOT,
RTW_BUS_STATION,
RTW_TRUCK_STATION,
WIDGET_LIST_END);
}

/**
* 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 themselfs.
* Both are only valid if they are able to apply as options. */
switch (clicked_widget) {
case RTW_REMOVE:
this->RaiseWidget(RTW_ONE_WAY);
this->SetWidgetDirty(RTW_ONE_WAY);
break;

case RTW_ONE_WAY:
this->RaiseWidget(RTW_REMOVE);
this->SetWidgetDirty(RTW_REMOVE);
break;

case RTW_BUS_STATION:
case RTW_TRUCK_STATION:
this->DisableWidget(RTW_ONE_WAY);
this->SetWidgetDisabledState(RTW_REMOVE, !this->IsWidgetLowered(clicked_widget));
break;

case RTW_ROAD_X:
case RTW_ROAD_Y:
case RTW_AUTOROAD:
this->SetWidgetsDisabledState(!this->IsWidgetLowered(clicked_widget),
RTW_REMOVE,
RTW_ONE_WAY,
WIDGET_LIST_END);
break;

default:
/* When any other buttons than road/station, raise and
* disable the removal button */
this->SetWidgetsDisabledState(true,
RTW_REMOVE,
RTW_ONE_WAY,
WIDGET_LIST_END);
this->SetWidgetsLoweredState(false,
RTW_REMOVE,
RTW_ONE_WAY,
WIDGET_LIST_END);
break;
}
}

virtual void OnClick(Point pt, int widget, int click_count)
{
_remove_button_clicked = false;
_one_way_button_clicked = false;
switch (widget) {
case RTW_ROAD_X:
HandlePlacePushButton(this, RTW_ROAD_X, _road_type_infos[_cur_roadtype].cursor_nwse, HT_RECT);
this->last_started_action = widget;
break;

case RTW_ROAD_Y:
HandlePlacePushButton(this, RTW_ROAD_Y, _road_type_infos[_cur_roadtype].cursor_nesw, HT_RECT);
this->last_started_action = widget;
break;

case RTW_AUTOROAD:
HandlePlacePushButton(this, RTW_AUTOROAD, _road_type_infos[_cur_roadtype].cursor_autoroad, HT_RECT);
this->last_started_action = widget;
break;

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

case RTW_DEPOT:
if (_game_mode == GM_EDITOR || !CanBuildVehicleInfrastructure(VEH_ROAD)) return;
if (HandlePlacePushButton(this, RTW_DEPOT, SPR_CURSOR_ROAD_DEPOT, HT_RECT)) {
ShowRoadDepotPicker(this);
this->last_started_action = widget;
}
break;

case RTW_BUS_STATION:
if (_game_mode == GM_EDITOR || !CanBuildVehicleInfrastructure(VEH_ROAD)) return;
if (HandlePlacePushButton(this, RTW_BUS_STATION, SPR_CURSOR_BUS_STATION, HT_RECT)) {
ShowRVStationPicker(this, ROADSTOP_BUS);
this->last_started_action = widget;
}
break;

case RTW_TRUCK_STATION:
if (_game_mode == GM_EDITOR || !CanBuildVehicleInfrastructure(VEH_ROAD)) return;
if (HandlePlacePushButton(this, RTW_TRUCK_STATION, SPR_CURSOR_TRUCK_STATION, HT_RECT)) {
ShowRVStationPicker(this, ROADSTOP_TRUCK);
this->last_started_action = widget;
}
break;

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

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

case RTW_BUILD_TUNNEL:
HandlePlacePushButton(this, RTW_BUILD_TUNNEL, SPR_CURSOR_ROAD_TUNNEL, HT_SPECIAL);
this->last_started_action = widget;
break;

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

DeleteWindowById(WC_SELECT_STATION, 0);
ToggleRoadButton_Remove(this);
SndPlayFx(SND_15_BEEP);
break;

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

virtual EventState OnKeyPress(uint16 key, uint16 keycode)
{
int num = CheckHotkeyMatch(roadtoolbar_hotkeys, keycode, this);
if (num == -1 || this->GetWidget<NWidgetBase>(num) == NULL) return ES_NOT_HANDLED;
this->OnClick(Point(), num, 1);
MarkTileDirtyByTile(TileVirtXY(_thd.pos.x, _thd.pos.y)); // redraw tile selection
return ES_HANDLED;
}

virtual void OnPlaceObject(Point pt, TileIndex tile)
{
_remove_button_clicked = this->IsWidgetLowered(RTW_REMOVE);
_one_way_button_clicked = this->IsWidgetLowered(RTW_ONE_WAY);
switch (this->last_started_action) {
case RTW_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 RTW_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 RTW_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 RTW_DEMOLISH:
PlaceProc_DemolishArea(tile);
break;

case RTW_DEPOT:
DoCommandP(tile, _cur_roadtype << 2 | _road_depot_orientation, 0,
CMD_BUILD_ROAD_DEPOT | CMD_MSG(_road_type_infos[_cur_roadtype].err_depot), CcRoadDepot);
break;

case RTW_BUS_STATION:
PlaceRoad_BusStation(tile);
break;

case RTW_TRUCK_STATION:
PlaceRoad_TruckStation(tile);
break;

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

case RTW_BUILD_TUNNEL:
DoCommandP(tile, RoadTypeToRoadTypes(_cur_roadtype) | (TRANSPORT_ROAD << 8), 0,
CMD_BUILD_TUNNEL | CMD_MSG(STR_ERROR_CAN_T_BUILD_TUNNEL_HERE), CcBuildRoadTunnel);
break;

default: NOT_REACHED();
}
}

virtual void OnPlaceObjectAbort()
{
this->RaiseButtons();
this->SetWidgetsDisabledState(true,
RTW_REMOVE,
RTW_ONE_WAY,
WIDGET_LIST_END);
this->SetWidgetDirty(RTW_REMOVE);
this->SetWidgetDirty(RTW_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);
}

virtual void OnPlaceDrag(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt)
{
/* 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);
}

virtual void OnPlaceMouseUp(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt, TileIndex start_tile, TileIndex end_tile)
{
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, RoadTypeToRoadTypes(_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) */
_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 << 5),
_remove_button_clicked ?
CMD_REMOVE_LONG_ROAD | CMD_MSG(_road_type_infos[_cur_roadtype].err_remove_road) :
CMD_BUILD_LONG_ROAD | CMD_MSG(_road_type_infos[_cur_roadtype].err_build_road), CcPlaySound1D);
break;

case DDSP_BUILD_BUSSTOP:
PlaceRoadStop(start_tile, end_tile, (_ctrl_pressed << 5) | RoadTypeToRoadTypes(_cur_roadtype) << 2 | ROADSTOP_BUS, CMD_BUILD_ROAD_STOP | CMD_MSG(_road_type_infos[_cur_roadtype].err_build_station[ROADSTOP_BUS]));
break;

case DDSP_BUILD_TRUCKSTOP:
PlaceRoadStop(start_tile, end_tile, (_ctrl_pressed << 5) | RoadTypeToRoadTypes(_cur_roadtype) << 2 | ROADSTOP_TRUCK, CMD_BUILD_ROAD_STOP | CMD_MSG(_road_type_infos[_cur_roadtype].err_build_station[ROADSTOP_TRUCK]));
break;

case DDSP_REMOVE_BUSSTOP: {
TileArea ta(start_tile, end_tile);
DoCommandP(ta.tile, ta.w | ta.h << 8, ROADSTOP_BUS, CMD_REMOVE_ROAD_STOP | CMD_MSG(_road_type_infos[_cur_roadtype].err_remove_station[ROADSTOP_BUS]), CcPlaySound1D);
break;
}

case DDSP_REMOVE_TRUCKSTOP: {
TileArea ta(start_tile, end_tile);
DoCommandP(ta.tile, ta.w | ta.h << 8, ROADSTOP_TRUCK, CMD_REMOVE_ROAD_STOP | CMD_MSG(_road_type_infos[_cur_roadtype].err_remove_station[ROADSTOP_TRUCK]), CcPlaySound1D);
break;
}
}
}
}

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

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

static Hotkey<BuildRoadToolbarWindow> roadtoolbar_hotkeys[];
};

Hotkey<BuildRoadToolbarWindow> BuildRoadToolbarWindow::roadtoolbar_hotkeys[] = {
Hotkey<BuildRoadToolbarWindow>('1', "build_x", RTW_ROAD_X),
Hotkey<BuildRoadToolbarWindow>('2', "build_y", RTW_ROAD_Y),
Hotkey<BuildRoadToolbarWindow>('3', "autoroad", RTW_AUTOROAD),
Hotkey<BuildRoadToolbarWindow>('4', "demolish", RTW_DEMOLISH),
Hotkey<BuildRoadToolbarWindow>('5', "depot", RTW_DEPOT),
Hotkey<BuildRoadToolbarWindow>('6', "bus_station", RTW_BUS_STATION),
Hotkey<BuildRoadToolbarWindow>('7', "truck_station", RTW_TRUCK_STATION),
Hotkey<BuildRoadToolbarWindow>('8', "oneway", RTW_ONE_WAY),
Hotkey<BuildRoadToolbarWindow>('B', "bridge", RTW_BUILD_BRIDGE),
Hotkey<BuildRoadToolbarWindow>('T', "tunnel", RTW_BUILD_TUNNEL),
Hotkey<BuildRoadToolbarWindow>('R', "remove", RTW_REMOVE),
HOTKEY_LIST_END(BuildRoadToolbarWindow)
};
Hotkey<BuildRoadToolbarWindow> *_roadtoolbar_hotkeys = BuildRoadToolbarWindow::roadtoolbar_hotkeys;


static const NWidgetPart _nested_build_road_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_ROAD_TOOLBAR_ROAD_CONSTRUCTION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_AUTOROAD),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOROAD, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOROAD),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_DEMOLISH),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_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, RTW_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, RTW_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, RTW_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, RTW_REMOVE),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_ROAD),
EndContainer(),
};

static const WindowDesc _build_road_desc(
WDP_ALIGN_TOOLBAR, 0, 0,
WC_BUILD_TOOLBAR, WC_NONE,
WDF_CONSTRUCTION,
_nested_build_road_widgets, lengthof(_nested_build_road_widgets)
);

static const NWidgetPart _nested_build_tramway_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_ROAD_TOOLBAR_TRAM_CONSTRUCTION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_AUTOROAD),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOTRAM, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOTRAM),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_DEMOLISH),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_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_EMPTY, COLOUR_DARK_GREEN, RTW_ONE_WAY), SetMinimalSize(0, 0),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_REMOVE),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_TRAMWAYS),
EndContainer(),
};

static const WindowDesc _build_tramway_desc(
WDP_ALIGN_TOOLBAR, 0, 0,
WC_BUILD_TOOLBAR, WC_NONE,
WDF_CONSTRUCTION,
_nested_build_tramway_widgets, lengthof(_nested_build_tramway_widgets)
);

/**
* 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 NULL if the toolbar could not be opened.
*/
Window *ShowBuildRoadToolbar(RoadType roadtype)
{
if (!Company::IsValidID(_local_company)) return NULL;
_cur_roadtype = roadtype;

DeleteWindowByClass(WC_BUILD_TOOLBAR);
return AllocateWindowDescFront<BuildRoadToolbarWindow>(roadtype == ROADTYPE_ROAD ? &_build_road_desc : &_build_tramway_desc, TRANSPORT_ROAD);
}

EventState RoadToolbarGlobalHotkeys(uint16 key, uint16 keycode)
{
extern RoadType _last_built_roadtype;
int num = CheckHotkeyMatch<BuildRoadToolbarWindow>(_roadtoolbar_hotkeys, keycode, NULL, true);
if (num == -1) return ES_NOT_HANDLED;
Window *w = ShowBuildRoadToolbar(_last_built_roadtype);
if (w == NULL) return ES_NOT_HANDLED;
return w->OnKeyPress(key, keycode);
}

static const NWidgetPart _nested_build_road_scen_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_ROAD_TOOLBAR_ROAD_CONSTRUCTION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
EndContainer(),
NWidget(NWID_HORIZONTAL),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_AUTOROAD),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTOROAD, STR_ROAD_TOOLBAR_TOOLTIP_BUILD_AUTOROAD),
NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_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, RTW_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, RTW_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, RTW_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, RTW_REMOVE),
SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_ROAD_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR_ROAD),
EndContainer(),
};

static const WindowDesc _build_road_scen_desc(
WDP_AUTO, 0, 0,
WC_SCEN_BUILD_TOOLBAR, WC_NONE,
WDF_CONSTRUCTION,
_nested_build_road_scen_widgets, lengthof(_nested_build_road_scen_widgets)
);

/**
* Show the road building toolbar in the scenario editor.
* @return The just opened toolbar.
*/
Window *ShowBuildRoadScenToolbar()
{
_cur_roadtype = ROADTYPE_ROAD;
return AllocateWindowDescFront<BuildRoadToolbarWindow>(&_build_road_scen_desc, 0);
}

EventState RoadToolbarEditorGlobalHotkeys(uint16 key, uint16 keycode)
{
int num = CheckHotkeyMatch<BuildRoadToolbarWindow>(_roadtoolbar_hotkeys, keycode, NULL, true);
if (num == -1) return ES_NOT_HANDLED;
Window *w = ShowBuildRoadScenToolbar();
if (w == NULL) return ES_NOT_HANDLED;
return w->OnKeyPress(key, keycode);
}

/** Enum referring to the widgets of the build road depot window */
enum BuildRoadDepotWidgets {
BRDW_CAPTION,
BRDW_DEPOT_NE,
BRDW_DEPOT_SE,
BRDW_DEPOT_SW,
BRDW_DEPOT_NW,
};

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

this->LowerWidget(_road_depot_orientation + BRDW_DEPOT_NE);
if ( _cur_roadtype == ROADTYPE_TRAM) {
this->GetWidget<NWidgetCore>(BRDW_CAPTION)->widget_data = STR_BUILD_DEPOT_TRAM_ORIENTATION_CAPTION;
for (int i = BRDW_DEPOT_NE; i <= BRDW_DEPOT_NW; i++) this->GetWidget<NWidgetCore>(i)->tool_tip = STR_BUILD_DEPOT_TRAM_ORIENTATION_SELECT_TOOLTIP;
}

this->FinishInitNested(desc, TRANSPORT_ROAD);
}

virtual void DrawWidget(const Rect &r, int widget) const
{
if (!IsInsideMM(widget, BRDW_DEPOT_NE, BRDW_DEPOT_NW + 1)) return;

DrawRoadDepotSprite(r.left - 1, r.top, (DiagDirection)(widget - BRDW_DEPOT_NE + DIAGDIR_NE), _cur_roadtype);
}

virtual void OnClick(Point pt, int widget, int click_count)
{
switch (widget) {
case BRDW_DEPOT_NW:
case BRDW_DEPOT_NE:
case BRDW_DEPOT_SW:
case BRDW_DEPOT_SE:
this->RaiseWidget(_road_depot_orientation + BRDW_DEPOT_NE);
_road_depot_orientation = (DiagDirection)(widget - BRDW_DEPOT_NE);
this->LowerWidget(_road_depot_orientation + BRDW_DEPOT_NE);
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, BRDW_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, BRDW_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, BRDW_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, BRDW_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, BRDW_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 const WindowDesc _build_road_depot_desc(
WDP_AUTO, 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);
}

/** Enum referring to the widgets of the build road station window */
enum BuildRoadStationWidgets {
BRSW_CAPTION,
BRSW_BACKGROUND,
BRSW_STATION_NE,
BRSW_STATION_SE,
BRSW_STATION_SW,
BRSW_STATION_NW,
BRSW_STATION_X,
BRSW_STATION_Y,
BRSW_LT_OFF,
BRSW_LT_ON,
BRSW_INFO,
};

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

/* Trams don't have non-drivethrough stations */
if (_cur_roadtype == ROADTYPE_TRAM && _road_station_picker_orientation < DIAGDIR_END) {
_road_station_picker_orientation = DIAGDIR_END;
}
this->SetWidgetsDisabledState(_cur_roadtype == ROADTYPE_TRAM,
BRSW_STATION_NE,
BRSW_STATION_SE,
BRSW_STATION_SW,
BRSW_STATION_NW,
WIDGET_LIST_END);

this->GetWidget<NWidgetCore>(BRSW_CAPTION)->widget_data = _road_type_infos[_cur_roadtype].picker_title[rs];
for (uint i = BRSW_STATION_NE; i < BRSW_LT_OFF; i++) this->GetWidget<NWidgetCore>(i)->tool_tip = _road_type_infos[_cur_roadtype].picker_tooltip[rs];

this->LowerWidget(_road_station_picker_orientation + BRSW_STATION_NE);
this->LowerWidget(_settings_client.gui.station_show_coverage + BRSW_LT_OFF);

this->FinishInitNested(desc, TRANSPORT_ROAD);

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

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

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

int rad = _settings_game.station.modified_catchment ? CA_TRUCK /* = CA_BUS */ : 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>(BRSW_LT_ON)->pos_y + this->GetWidget<NWidgetBase>(BRSW_LT_ON)->current_y + WD_PAR_VSEP_NORMAL;
NWidgetBase *back_nwi = this->GetWidget<NWidgetBase>(BRSW_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 text is not equally long as the window. */
if (top > bottom || (top < bottom && back_nwi->current_y > back_nwi->smallest_y)) {
ResizeWindow(this, 0, top - bottom);
}
}

virtual void DrawWidget(const Rect &r, int widget) const
{
if (!IsInsideMM(widget, BRSW_STATION_NE, BRSW_STATION_Y + 1)) return;

StationType st = (this->window_class == WC_BUS_STATION) ? STATION_BUS : STATION_TRUCK;
StationPickerDrawSprite(r.left + TILE_PIXELS, r.bottom - TILE_PIXELS, st, INVALID_RAILTYPE, widget < BRSW_STATION_X ? ROADTYPE_ROAD : _cur_roadtype, widget - BRSW_STATION_NE);
}

virtual void OnClick(Point pt, int widget, int click_count)
{
switch (widget) {
case BRSW_STATION_NE:
case BRSW_STATION_SE:
case BRSW_STATION_SW:
case BRSW_STATION_NW:
case BRSW_STATION_X:
case BRSW_STATION_Y:
this->RaiseWidget(_road_station_picker_orientation + BRSW_STATION_NE);
_road_station_picker_orientation = (DiagDirection)(widget - BRSW_STATION_NE);
this->LowerWidget(_road_station_picker_orientation + BRSW_STATION_NE);
SndPlayFx(SND_15_BEEP);
this->SetDirty();
DeleteWindowById(WC_SELECT_STATION, 0);
break;

case BRSW_LT_OFF:
case BRSW_LT_ON:
this->RaiseWidget(_settings_client.gui.station_show_coverage + BRSW_LT_OFF);
_settings_client.gui.station_show_coverage = (widget != BRSW_LT_OFF);
this->LowerWidget(_settings_client.gui.station_show_coverage + BRSW_LT_OFF);
SndPlayFx(SND_15_BEEP);
this->SetDirty();
break;

default:
break;
}
}

virtual void OnTick()
{
CheckRedrawStationCoverage(this);
}
};

/** Widget definition of the build road station window */
static const NWidgetPart _nested_rv_station_picker_widgets[] = {
NWidget(NWID_HORIZONTAL),
NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, BRSW_CAPTION),
EndContainer(),
NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BRSW_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, BRSW_STATION_NW), SetMinimalSize(66, 50), EndContainer(),
NWidget(WWT_PANEL, COLOUR_GREY, BRSW_STATION_NE), SetMinimalSize(66, 50), EndContainer(),
NWidget(WWT_PANEL, COLOUR_GREY, BRSW_STATION_X), SetMinimalSize(66, 50), 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, BRSW_STATION_SW), SetMinimalSize(66, 50), EndContainer(),
NWidget(WWT_PANEL, COLOUR_GREY, BRSW_STATION_SE), SetMinimalSize(66, 50), EndContainer(),
NWidget(WWT_PANEL, COLOUR_GREY, BRSW_STATION_Y), SetMinimalSize(66, 50), 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, BRSW_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, BRSW_LT_OFF), SetMinimalSize(60, 12),
SetDataTip(STR_STATION_BUILD_COVERAGE_OFF, STR_STATION_BUILD_COVERAGE_AREA_OFF_TOOLTIP),
NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_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 const WindowDesc _rv_station_picker_desc(
WDP_AUTO, 0, 0,
WC_BUS_STATION, WC_BUILD_TOOLBAR,
WDF_CONSTRUCTION,
_nested_rv_station_picker_widgets, lengthof(_nested_rv_station_picker_widgets)
);

static void ShowRVStationPicker(Window *parent, RoadStopType rs)
{
new BuildRoadStationWindow(&_rv_station_picker_desc, parent, rs);
}

void InitializeRoadGui()
{
_road_depot_orientation = DIAGDIR_NW;
_road_station_picker_orientation = DIAGDIR_NW;
}
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