rail_gui.cpp

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * 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.
00006  * 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.
00007  * 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/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "gui.h"
00014 #include "window_gui.h"
00015 #include "station_gui.h"
00016 #include "terraform_gui.h"
00017 #include "viewport_func.h"
00018 #include "command_func.h"
00019 #include "waypoint_func.h"
00020 #include "newgrf_station.h"
00021 #include "company_base.h"
00022 #include "strings_func.h"
00023 #include "window_func.h"
00024 #include "date_func.h"
00025 #include "sound_func.h"
00026 #include "company_func.h"
00027 #include "widgets/dropdown_type.h"
00028 #include "tunnelbridge.h"
00029 #include "tilehighlight_func.h"
00030 #include "spritecache.h"
00031 #include "core/geometry_func.hpp"
00032 #include "hotkeys.h"
00033 #include "engine_base.h"
00034 #include "textbuf_gui.h"
00035 #include "string.h"
00036 #include "programmable_signals.h"
00037 
00038 #include "station_map.h"
00039 #include "tunnelbridge_map.h"
00040 
00041 #include "table/strings.h"
00042 
00043 RailType _cur_railtype;                      
00044 static bool _remove_button_clicked;          
00045 static DiagDirection _build_depot_direction; 
00046 static byte _waypoint_count = 1;             
00047 static byte _cur_waypoint_type;              
00048 static bool _convert_signal_button;          
00049 static bool _program_signal_button;          
00050 static SignalVariant _cur_signal_variant;    
00051 static SignalType _cur_signal_type;          
00052 static uint _cur_signal_button;              
00053 
00054 /* Map the setting: default_signal_type to the corresponding signal type */
00055 static const SignalType _default_signal_type[] = {SIGTYPE_NORMAL, SIGTYPE_PBS, SIGTYPE_PBS_ONEWAY};
00056 
00057 struct RailStationGUISettings {
00058   Axis orientation;                 
00059 
00060   bool newstations;                 
00061   StationClassID station_class;     
00062   byte station_type;                
00063   byte station_count;               
00064 };
00065 static RailStationGUISettings _railstation; 
00066 
00067 
00068 static void HandleStationPlacement(TileIndex start, TileIndex end);
00069 static void ShowBuildTrainDepotPicker(Window *parent);
00070 static void ShowBuildWaypointPicker(Window *parent);
00071 static void ShowStationBuilder(Window *parent);
00072 static void ShowSignalBuilder(Window *parent);
00073 
00074 void CcPlaySound1E(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
00075 {
00076   if (result.Succeeded()) SndPlayTileFx(SND_20_SPLAT_2, tile);
00077 }
00078 
00079 static void GenericPlaceRail(TileIndex tile, int cmd)
00080 {
00081   DoCommandP(tile, _cur_railtype, cmd,
00082       _remove_button_clicked ?
00083       CMD_REMOVE_SINGLE_RAIL | CMD_MSG(STR_ERROR_CAN_T_REMOVE_RAILROAD_TRACK) :
00084       CMD_BUILD_SINGLE_RAIL | CMD_MSG(STR_ERROR_CAN_T_BUILD_RAILROAD_TRACK),
00085       CcPlaySound1E);
00086 }
00087 
00095 static void PlaceExtraDepotRail(TileIndex tile, DiagDirection dir, Track track)
00096 {
00097   if (GetRailTileType(tile) != RAIL_TILE_NORMAL) return;
00098   if ((GetTrackBits(tile) & DiagdirReachesTracks(dir)) == 0) return;
00099 
00100   DoCommandP(tile, _cur_railtype, track, CMD_BUILD_SINGLE_RAIL);
00101 }
00102 
00104 static const Track _place_depot_extra_track[12] = {
00105   TRACK_LEFT,  TRACK_UPPER, TRACK_UPPER, TRACK_RIGHT, // First additional track for directions 0..3
00106   TRACK_X,     TRACK_Y,     TRACK_X,     TRACK_Y,     // Second additional track
00107   TRACK_LOWER, TRACK_LEFT,  TRACK_RIGHT, TRACK_LOWER, // Third additional track
00108 };
00109 
00111 static const DiagDirection _place_depot_extra_dir[12] = {
00112   DIAGDIR_SE, DIAGDIR_SW, DIAGDIR_SE, DIAGDIR_SW,
00113   DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NE, DIAGDIR_SE,
00114   DIAGDIR_NW, DIAGDIR_NE, DIAGDIR_NW, DIAGDIR_NE,
00115 };
00116 
00117 void CcRailDepot(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
00118 {
00119   if (result.Failed()) return;
00120 
00121   DiagDirection dir = (DiagDirection)p2;
00122 
00123   SndPlayTileFx(SND_20_SPLAT_2, tile);
00124   if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
00125 
00126   tile += TileOffsByDiagDir(dir);
00127 
00128   if (IsTileType(tile, MP_RAILWAY)) {
00129     PlaceExtraDepotRail(tile, _place_depot_extra_dir[dir], _place_depot_extra_track[dir]);
00130     PlaceExtraDepotRail(tile, _place_depot_extra_dir[dir + 4], _place_depot_extra_track[dir + 4]);
00131     PlaceExtraDepotRail(tile, _place_depot_extra_dir[dir + 8], _place_depot_extra_track[dir + 8]);
00132   }
00133 }
00134 
00139 static void PlaceRail_Waypoint(TileIndex tile)
00140 {
00141   if (_remove_button_clicked) {
00142     VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_REMOVE_STATION);
00143     return;
00144   }
00145 
00146   Axis axis = GetAxisForNewWaypoint(tile);
00147   if (IsValidAxis(axis)) {
00148     /* Valid tile for waypoints */
00149     VpStartPlaceSizing(tile, axis == AXIS_X ? VPM_FIX_X : VPM_FIX_Y, DDSP_BUILD_STATION);
00150   } else {
00151     /* Tile where we can't build rail waypoints. This is always going to fail,
00152      * but provides the user with a proper error message. */
00153     DoCommandP(tile, 1 << 8 | 1 << 16, STAT_CLASS_WAYP | INVALID_STATION << 16, CMD_BUILD_RAIL_WAYPOINT | CMD_MSG(STR_ERROR_CAN_T_BUILD_TRAIN_WAYPOINT));
00154   }
00155 }
00156 
00157 void CcStation(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
00158 {
00159   if (result.Failed()) return;
00160 
00161   SndPlayTileFx(SND_20_SPLAT_2, tile);
00162   /* Only close the station builder window if the default station and non persistent building is chosen. */
00163   if (_railstation.station_class == STAT_CLASS_DFLT && _railstation.station_type == 0 && !_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
00164 }
00165 
00170 static void PlaceRail_Station(TileIndex tile)
00171 {
00172   if (_remove_button_clicked) {
00173     VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED, DDSP_REMOVE_STATION);
00174     VpSetPlaceSizingLimit(-1);
00175   } else if (_settings_client.gui.station_dragdrop) {
00176     VpStartPlaceSizing(tile, VPM_X_AND_Y_LIMITED, DDSP_BUILD_STATION);
00177     VpSetPlaceSizingLimit(_settings_game.station.station_spread);
00178   } else {
00179     uint32 p1 = _cur_railtype | _railstation.orientation << 4 | _settings_client.gui.station_numtracks << 8 | _settings_client.gui.station_platlength << 16 | _ctrl_pressed << 24;
00180     uint32 p2 = _railstation.station_class | _railstation.station_type << 8 | INVALID_STATION << 16;
00181 
00182     int w = _settings_client.gui.station_numtracks;
00183     int h = _settings_client.gui.station_platlength;
00184     if (!_railstation.orientation) Swap(w, h);
00185 
00186     CommandContainer cmdcont = { tile, p1, p2, CMD_BUILD_RAIL_STATION | CMD_MSG(STR_ERROR_CAN_T_BUILD_RAILROAD_STATION), CcStation, "" };
00187     ShowSelectStationIfNeeded(cmdcont, TileArea(tile, w, h));
00188   }
00189 }
00190 
00196 static void GenericPlaceSignals(TileIndex tile)
00197 {
00198   TrackBits trackbits = TrackStatusToTrackBits(GetTileTrackStatus(tile, TRANSPORT_RAIL, 0));
00199 
00200   if (trackbits & TRACK_BIT_VERT) { // N-S direction
00201     trackbits = (_tile_fract_coords.x <= _tile_fract_coords.y) ? TRACK_BIT_RIGHT : TRACK_BIT_LEFT;
00202   }
00203 
00204   if (trackbits & TRACK_BIT_HORZ) { // E-W direction
00205     trackbits = (_tile_fract_coords.x + _tile_fract_coords.y <= 15) ? TRACK_BIT_UPPER : TRACK_BIT_LOWER;
00206   }
00207 
00208   Track track = FindFirstTrack(trackbits);
00209 
00210   if (_remove_button_clicked) {
00211     // TODO: also check if a programmable signal is dependant on this signal ...
00212     DoCommandP(tile, track, 0, CMD_REMOVE_SIGNALS | CMD_MSG(STR_ERROR_CAN_T_REMOVE_SIGNALS_FROM), CcPlaySound1E);
00213     return;
00214   }
00215 
00216   if (_program_signal_button) {
00217     if (IsPlainRailTile(tile) && HasTrack(tile, track) && HasSignalOnTrack(tile,track) && IsPresignalProgrammable(tile, track)) {
00218       /* Show program gui if there is a programmable signal */
00219       ShowSignalProgramWindow(SignalReference(tile, track));
00220       return;
00221     } else if(IsPlainRailTile(tile) && HasTrack(tile, track) && HasSignalOnTrack(tile,track) && IsSpeedSignal(tile, track)) {
00222       ShowSpeedSignalWindow(SignalReference(tile, track));
00223       return;
00224     }
00225     /* Don't display error here even though program-button is pressed and there is no programmable signal,
00226      * instead just handle it normally. That way player can keep the program-button pressed all the time
00227      * to build slightly faster. */
00228   }
00229 
00230     const Window *w = FindWindowById(WC_BUILD_SIGNAL, 0);
00231 
00232     /* various bitstuffed elements for CmdBuildSingleSignal() */
00233     uint32 p1 = track;
00234 
00235     if (w != NULL) {
00236       /* signal GUI is used */
00237       SB(p1, 3, 1, _ctrl_pressed);
00238       SB(p1, 4, 1, _cur_signal_variant);
00239       SB(p1, 5, 3, _cur_signal_type);
00240       SB(p1, 8, 1, _convert_signal_button);
00241       SB(p1, 9, 7, _settings_client.gui.cycle_signal_types);
00242     } else {
00243       SB(p1, 3, 1, _ctrl_pressed);
00244       SB(p1, 4, 1, (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC));
00245       SB(p1, 5, 3, _default_signal_type[_settings_client.gui.default_signal_type]);
00246       SB(p1, 8, 1, 0);
00247       SB(p1, 9, 7, _settings_client.gui.cycle_signal_types);
00248     }
00249 
00250     DoCommandP(tile, p1, 0, CMD_BUILD_SIGNALS |
00251         CMD_MSG((w != NULL && _convert_signal_button) ? STR_ERROR_SIGNAL_CAN_T_CONVERT_SIGNALS_HERE : STR_ERROR_CAN_T_BUILD_SIGNALS_HERE),
00252         CcPlaySound1E);
00253 }
00254 
00260 static void PlaceRail_Bridge(TileIndex tile, Window *w)
00261 {
00262   if (IsBridgeTile(tile)) {
00263     TileIndex other_tile = GetOtherTunnelBridgeEnd(tile);
00264     Point pt = {0, 0};
00265     w->OnPlaceMouseUp(VPM_X_OR_Y, DDSP_BUILD_BRIDGE, pt, tile, other_tile);
00266   } else {
00267     VpStartPlaceSizing(tile, VPM_X_OR_Y, DDSP_BUILD_BRIDGE);
00268   }
00269 }
00270 
00272 void CcBuildRailTunnel(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
00273 {
00274   if (result.Succeeded()) {
00275     SndPlayTileFx(SND_20_SPLAT_2, tile);
00276     if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
00277   } else {
00278     SetRedErrorSquare(_build_tunnel_endtile);
00279   }
00280 }
00281 
00282 
00284 enum RailToolbarWidgets {
00285   RTW_CAPTION,
00286   RTW_BUILD_NS,
00287   RTW_BUILD_X,
00288   RTW_BUILD_EW,
00289   RTW_BUILD_Y,
00290   RTW_AUTORAIL,
00291   RTW_DEMOLISH,
00292   RTW_BUILD_DEPOT,
00293   RTW_BUILD_WAYPOINT,
00294   RTW_BUILD_STATION,
00295   RTW_BUILD_SIGNALS,
00296   RTW_BUILD_BRIDGE,
00297   RTW_BUILD_TUNNEL,
00298   RTW_REMOVE,
00299   RTW_CONVERT_RAIL,
00300 };
00301 
00302 
00307 static void ToggleRailButton_Remove(Window *w)
00308 {
00309   DeleteWindowById(WC_SELECT_STATION, 0);
00310   w->ToggleWidgetLoweredState(RTW_REMOVE);
00311   w->SetWidgetDirty(RTW_REMOVE);
00312   _remove_button_clicked = w->IsWidgetLowered(RTW_REMOVE);
00313   SetSelectionRed(_remove_button_clicked);
00314 }
00315 
00321 static bool RailToolbar_CtrlChanged(Window *w)
00322 {
00323   if (w->IsWidgetDisabled(RTW_REMOVE)) return false;
00324 
00325   /* allow ctrl to switch remove mode only for these widgets */
00326   for (uint i = RTW_BUILD_NS; i <= RTW_BUILD_STATION; i++) {
00327     if ((i <= RTW_AUTORAIL || i >= RTW_BUILD_WAYPOINT) && w->IsWidgetLowered(i)) {
00328       ToggleRailButton_Remove(w);
00329       return true;
00330     }
00331   }
00332 
00333   return false;
00334 }
00335 
00336 
00342 static void BuildRailClick_Remove(Window *w)
00343 {
00344   if (w->IsWidgetDisabled(RTW_REMOVE)) return;
00345   ToggleRailButton_Remove(w);
00346   SndPlayFx(SND_15_BEEP);
00347 
00348   /* handle station builder */
00349   if (w->IsWidgetLowered(RTW_BUILD_STATION)) {
00350     if (_remove_button_clicked) {
00351       /* starting drag & drop remove */
00352       if (!_settings_client.gui.station_dragdrop) {
00353         SetTileSelectSize(1, 1);
00354       } else {
00355         VpSetPlaceSizingLimit(-1);
00356       }
00357     } else {
00358       /* starting station build mode */
00359       if (!_settings_client.gui.station_dragdrop) {
00360         int x = _settings_client.gui.station_numtracks;
00361         int y = _settings_client.gui.station_platlength;
00362         if (_railstation.orientation == 0) Swap(x, y);
00363         SetTileSelectSize(x, y);
00364       } else {
00365         VpSetPlaceSizingLimit(_settings_game.station.station_spread);
00366       }
00367     }
00368   }
00369 }
00370 
00371 static void DoRailroadTrack(int mode)
00372 {
00373   DoCommandP(TileVirtXY(_thd.selstart.x, _thd.selstart.y), TileVirtXY(_thd.selend.x, _thd.selend.y), _cur_railtype | (mode << 4),
00374       _remove_button_clicked ?
00375       CMD_REMOVE_RAILROAD_TRACK | CMD_MSG(STR_ERROR_CAN_T_REMOVE_RAILROAD_TRACK) :
00376       CMD_BUILD_RAILROAD_TRACK  | CMD_MSG(STR_ERROR_CAN_T_BUILD_RAILROAD_TRACK));
00377 }
00378 
00379 static void HandleAutodirPlacement()
00380 {
00381   int trackstat = _thd.drawstyle & HT_DIR_MASK; // 0..5
00382 
00383   if (_thd.drawstyle & HT_RAIL) { // one tile case
00384     GenericPlaceRail(TileVirtXY(_thd.selend.x, _thd.selend.y), trackstat);
00385     return;
00386   }
00387 
00388   DoRailroadTrack(trackstat);
00389 }
00390 
00397 static void HandleAutoSignalPlacement()
00398 {
00399   uint32 p2 = GB(_thd.drawstyle, 0, 3); // 0..5
00400 
00401   if ((_thd.drawstyle & HT_DRAG_MASK) == HT_RECT) { // one tile case
00402     GenericPlaceSignals(TileVirtXY(_thd.selend.x, _thd.selend.y));
00403     return;
00404   }
00405 
00406   const Window *w = FindWindowById(WC_BUILD_SIGNAL, 0);
00407 
00408   if (w != NULL) {
00409     /* signal GUI is used */
00410     SB(p2,  3, 1, 0);
00411     SB(p2,  4, 1, _cur_signal_variant);
00412     SB(p2,  6, 1, _ctrl_pressed);
00413     SB(p2,  7, 3, _cur_signal_type);
00414     SB(p2, 24, 8, _settings_client.gui.drag_signals_density);
00415   } else {
00416     SB(p2,  3, 1, 0);
00417     SB(p2,  4, 1, (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC));
00418     SB(p2,  6, 1, _ctrl_pressed);
00419     SB(p2,  7, 3, _default_signal_type[_settings_client.gui.default_signal_type]);
00420     SB(p2, 24, 8, _settings_client.gui.drag_signals_density);
00421   }
00422 
00423   /* _settings_client.gui.drag_signals_density is given as a parameter such that each user
00424    * in a network game can specify his/her own signal density */
00425   DoCommandP(TileVirtXY(_thd.selstart.x, _thd.selstart.y), TileVirtXY(_thd.selend.x, _thd.selend.y), p2,
00426       _remove_button_clicked ?
00427       CMD_REMOVE_SIGNAL_TRACK | CMD_MSG(STR_ERROR_CAN_T_REMOVE_SIGNALS_FROM) :
00428       CMD_BUILD_SIGNAL_TRACK  | CMD_MSG(STR_ERROR_CAN_T_BUILD_SIGNALS_HERE),
00429       CcPlaySound1E);
00430 }
00431 
00432 
00434 struct BuildRailToolbarWindow : Window {
00435   RailType railtype;    
00436   int last_user_action; 
00437 
00438   BuildRailToolbarWindow(const WindowDesc *desc, WindowNumber window_number, RailType railtype) : Window()
00439   {
00440     this->InitNested(desc);
00441     this->SetupRailToolbar(railtype);
00442     this->DisableWidget(RTW_REMOVE);
00443     this->last_user_action = WIDGET_LIST_END;
00444 
00445     if (_settings_client.gui.link_terraform_toolbar) ShowTerraformToolbar(this);
00446   }
00447 
00448   ~BuildRailToolbarWindow()
00449   {
00450     if (_settings_client.gui.link_terraform_toolbar) DeleteWindowById(WC_SCEN_LAND_GEN, 0, false);
00451   }
00452 
00457   void SetupRailToolbar(RailType railtype)
00458   {
00459     this->railtype = railtype;
00460     const RailtypeInfo *rti = GetRailTypeInfo(railtype);
00461 
00462     assert(railtype < RAILTYPE_END);
00463     this->GetWidget<NWidgetCore>(RTW_BUILD_NS)->widget_data     = rti->gui_sprites.build_ns_rail;
00464     this->GetWidget<NWidgetCore>(RTW_BUILD_X)->widget_data      = rti->gui_sprites.build_x_rail;
00465     this->GetWidget<NWidgetCore>(RTW_BUILD_EW)->widget_data     = rti->gui_sprites.build_ew_rail;
00466     this->GetWidget<NWidgetCore>(RTW_BUILD_Y)->widget_data      = rti->gui_sprites.build_y_rail;
00467     this->GetWidget<NWidgetCore>(RTW_AUTORAIL)->widget_data     = rti->gui_sprites.auto_rail;
00468     this->GetWidget<NWidgetCore>(RTW_BUILD_DEPOT)->widget_data  = rti->gui_sprites.build_depot;
00469     this->GetWidget<NWidgetCore>(RTW_CONVERT_RAIL)->widget_data = rti->gui_sprites.convert_rail;
00470     this->GetWidget<NWidgetCore>(RTW_BUILD_TUNNEL)->widget_data = rti->gui_sprites.build_tunnel;
00471   }
00472 
00477   void ModifyRailType(RailType railtype)
00478   {
00479     this->SetupRailToolbar(railtype);
00480     this->ReInit();
00481   }
00482 
00483   void UpdateRemoveWidgetStatus(int clicked_widget)
00484   {
00485     switch (clicked_widget) {
00486       case RTW_REMOVE:
00487         /* If it is the removal button that has been clicked, do nothing,
00488          * as it is up to the other buttons to drive removal status */
00489         return;
00490 
00491       case RTW_BUILD_NS:
00492       case RTW_BUILD_X:
00493       case RTW_BUILD_EW:
00494       case RTW_BUILD_Y:
00495       case RTW_AUTORAIL:
00496       case RTW_BUILD_WAYPOINT:
00497       case RTW_BUILD_STATION:
00498       case RTW_BUILD_SIGNALS:
00499         /* Removal button is enabled only if the rail/signal/waypoint/station
00500          * button is still lowered.  Once raised, it has to be disabled */
00501         this->SetWidgetDisabledState(RTW_REMOVE, !this->IsWidgetLowered(clicked_widget));
00502         break;
00503 
00504       default:
00505         /* When any other buttons than rail/signal/waypoint/station, raise and
00506          * disable the removal button */
00507         this->DisableWidget(RTW_REMOVE);
00508         this->RaiseWidget(RTW_REMOVE);
00509         break;
00510     }
00511   }
00512 
00513   virtual void SetStringParameters(int widget) const
00514   {
00515     if (widget == RTW_CAPTION) {
00516       const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00517       if (rti->max_speed > 0) {
00518         SetDParam(0, STR_TOOLBAR_RAILTYPE_VELOCITY);
00519         SetDParam(1, rti->strings.toolbar_caption);
00520         SetDParam(2, rti->max_speed);
00521       } else {
00522         SetDParam(0, rti->strings.toolbar_caption);
00523       }
00524     }
00525   }
00526 
00527   virtual void OnClick(Point pt, int widget, int click_count)
00528   {
00529     if (widget < RTW_BUILD_NS) return;
00530 
00531     _remove_button_clicked = false;
00532     switch (widget) {
00533       case RTW_BUILD_NS:
00534         HandlePlacePushButton(this, RTW_BUILD_NS, GetRailTypeInfo(_cur_railtype)->cursor.rail_ns, HT_LINE | HT_DIR_VL);
00535         this->last_user_action = widget;
00536         break;
00537 
00538       case RTW_BUILD_X:
00539         HandlePlacePushButton(this, RTW_BUILD_X, GetRailTypeInfo(_cur_railtype)->cursor.rail_swne, HT_LINE | HT_DIR_X);
00540         this->last_user_action = widget;
00541         break;
00542 
00543       case RTW_BUILD_EW:
00544         HandlePlacePushButton(this, RTW_BUILD_EW, GetRailTypeInfo(_cur_railtype)->cursor.rail_ew, HT_LINE | HT_DIR_HL);
00545         this->last_user_action = widget;
00546         break;
00547 
00548       case RTW_BUILD_Y:
00549         HandlePlacePushButton(this, RTW_BUILD_Y, GetRailTypeInfo(_cur_railtype)->cursor.rail_nwse, HT_LINE | HT_DIR_Y);
00550         this->last_user_action = widget;
00551         break;
00552 
00553       case RTW_AUTORAIL:
00554         HandlePlacePushButton(this, RTW_AUTORAIL, GetRailTypeInfo(_cur_railtype)->cursor.autorail, HT_RAIL);
00555         this->last_user_action = widget;
00556         break;
00557 
00558       case RTW_DEMOLISH:
00559         HandlePlacePushButton(this, RTW_DEMOLISH, ANIMCURSOR_DEMOLISH, HT_RECT | HT_DIAGONAL);
00560         this->last_user_action = widget;
00561         break;
00562 
00563       case RTW_BUILD_DEPOT:
00564         if (HandlePlacePushButton(this, RTW_BUILD_DEPOT, GetRailTypeInfo(_cur_railtype)->cursor.depot, HT_RECT)) {
00565           ShowBuildTrainDepotPicker(this);
00566           this->last_user_action = widget;
00567         }
00568         break;
00569 
00570       case RTW_BUILD_WAYPOINT:
00571         this->last_user_action = widget;
00572         _waypoint_count = StationClass::GetCount(STAT_CLASS_WAYP);
00573         if (HandlePlacePushButton(this, RTW_BUILD_WAYPOINT, SPR_CURSOR_WAYPOINT, HT_RECT) && _waypoint_count > 1) {
00574           ShowBuildWaypointPicker(this);
00575         }
00576         break;
00577 
00578       case RTW_BUILD_STATION:
00579         if (HandlePlacePushButton(this, RTW_BUILD_STATION, SPR_CURSOR_RAIL_STATION, HT_RECT)) {
00580           ShowStationBuilder(this);
00581           this->last_user_action = widget;
00582         }
00583         break;
00584 
00585       case RTW_BUILD_SIGNALS: {
00586         this->last_user_action = widget;
00587         bool started = HandlePlacePushButton(this, RTW_BUILD_SIGNALS, ANIMCURSOR_BUILDSIGNALS, HT_RECT);
00588         if (started && _settings_client.gui.enable_signal_gui != _ctrl_pressed) {
00589           ShowSignalBuilder(this);
00590         }
00591         break;
00592       }
00593 
00594       case RTW_BUILD_BRIDGE:
00595         HandlePlacePushButton(this, RTW_BUILD_BRIDGE, SPR_CURSOR_BRIDGE, HT_RECT);
00596         this->last_user_action = widget;
00597         break;
00598 
00599       case RTW_BUILD_TUNNEL:
00600         HandlePlacePushButton(this, RTW_BUILD_TUNNEL, GetRailTypeInfo(_cur_railtype)->cursor.tunnel, HT_SPECIAL);
00601         this->last_user_action = widget;
00602         break;
00603 
00604       case RTW_REMOVE:
00605         BuildRailClick_Remove(this);
00606         break;
00607 
00608       case RTW_CONVERT_RAIL:
00609         HandlePlacePushButton(this, RTW_CONVERT_RAIL, GetRailTypeInfo(_cur_railtype)->cursor.convert, HT_RECT);
00610         this->last_user_action = widget;
00611         break;
00612 
00613       default: NOT_REACHED();
00614     }
00615     this->UpdateRemoveWidgetStatus(widget);
00616     if (_ctrl_pressed) RailToolbar_CtrlChanged(this);
00617   }
00618 
00619   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
00620   {
00621     int num = CheckHotkeyMatch(railtoolbar_hotkeys, keycode, this);
00622     if (num == -1) return ES_NOT_HANDLED;
00623     this->OnClick(Point(), num, 1);
00624     MarkTileDirtyByTile(TileVirtXY(_thd.pos.x, _thd.pos.y)); // redraw tile selection
00625     return ES_HANDLED;
00626   }
00627 
00628   virtual void OnPlaceObject(Point pt, TileIndex tile)
00629   {
00630     switch (this->last_user_action) {
00631       case RTW_BUILD_NS:
00632         VpStartPlaceSizing(tile, VPM_FIX_VERTICAL | VPM_RAILDIRS, DDSP_PLACE_RAIL);
00633         break;
00634 
00635       case RTW_BUILD_X:
00636         VpStartPlaceSizing(tile, VPM_FIX_Y | VPM_RAILDIRS, DDSP_PLACE_RAIL);
00637         break;
00638 
00639       case RTW_BUILD_EW:
00640         VpStartPlaceSizing(tile, VPM_FIX_HORIZONTAL | VPM_RAILDIRS, DDSP_PLACE_RAIL);
00641         break;
00642 
00643       case RTW_BUILD_Y:
00644         VpStartPlaceSizing(tile, VPM_FIX_X | VPM_RAILDIRS, DDSP_PLACE_RAIL);
00645         break;
00646 
00647       case RTW_AUTORAIL:
00648         VpStartPlaceSizing(tile, VPM_RAILDIRS, DDSP_PLACE_RAIL);
00649         break;
00650 
00651       case RTW_DEMOLISH:
00652         PlaceProc_DemolishArea(tile);
00653         break;
00654 
00655       case RTW_BUILD_DEPOT:
00656         DoCommandP(tile, _cur_railtype, _build_depot_direction,
00657             CMD_BUILD_TRAIN_DEPOT | CMD_MSG(STR_ERROR_CAN_T_BUILD_TRAIN_DEPOT),
00658             CcRailDepot);
00659         break;
00660 
00661       case RTW_BUILD_WAYPOINT:
00662         PlaceRail_Waypoint(tile);
00663         break;
00664 
00665       case RTW_BUILD_STATION:
00666         PlaceRail_Station(tile);
00667         break;
00668 
00669       case RTW_BUILD_SIGNALS:
00670         VpStartPlaceSizing(tile, VPM_SIGNALDIRS, DDSP_BUILD_SIGNALS);
00671         break;
00672 
00673       case RTW_BUILD_BRIDGE:
00674         PlaceRail_Bridge(tile, this);
00675         break;
00676 
00677       case RTW_BUILD_TUNNEL:
00678         DoCommandP(tile, _cur_railtype | (TRANSPORT_RAIL << 8), 0, CMD_BUILD_TUNNEL | CMD_MSG(STR_ERROR_CAN_T_BUILD_TUNNEL_HERE), CcBuildRailTunnel);
00679         break;
00680 
00681       case RTW_CONVERT_RAIL:
00682         VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_CONVERT_RAIL);
00683         break;
00684 
00685       default: NOT_REACHED();
00686     }
00687   }
00688 
00689   virtual void OnPlaceDrag(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt)
00690   {
00691     /* no dragging if you have pressed the convert button */
00692     if (FindWindowById(WC_BUILD_SIGNAL, 0) != NULL && _convert_signal_button && this->IsWidgetLowered(RTW_BUILD_SIGNALS)) return;
00693 
00694     VpSelectTilesWithMethod(pt.x, pt.y, select_method);
00695   }
00696 
00697   virtual void OnPlaceMouseUp(ViewportPlaceMethod select_method, ViewportDragDropSelectionProcess select_proc, Point pt, TileIndex start_tile, TileIndex end_tile)
00698   {
00699     if (pt.x != -1) {
00700       switch (select_proc) {
00701         default: NOT_REACHED();
00702         case DDSP_BUILD_BRIDGE:
00703           if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
00704           ShowBuildBridgeWindow(start_tile, end_tile, TRANSPORT_RAIL, _cur_railtype);
00705           break;
00706 
00707         case DDSP_PLACE_RAIL:
00708           HandleAutodirPlacement();
00709           break;
00710 
00711         case DDSP_BUILD_SIGNALS:
00712           HandleAutoSignalPlacement();
00713           break;
00714 
00715         case DDSP_DEMOLISH_AREA:
00716           GUIPlaceProcDragXY(select_proc, start_tile, end_tile);
00717           break;
00718 
00719         case DDSP_CONVERT_RAIL:
00720           DoCommandP(end_tile, start_tile, _cur_railtype, CMD_CONVERT_RAIL | CMD_MSG(STR_ERROR_CAN_T_CONVERT_RAIL), CcPlaySound10);
00721           break;
00722 
00723         case DDSP_REMOVE_STATION:
00724         case DDSP_BUILD_STATION:
00725           if (this->IsWidgetLowered(RTW_BUILD_STATION)) {
00726             /* Station */
00727             if (_remove_button_clicked) {
00728               DoCommandP(end_tile, start_tile, _ctrl_pressed ? 0 : 1, CMD_REMOVE_FROM_RAIL_STATION | CMD_MSG(STR_ERROR_CAN_T_REMOVE_PART_OF_STATION), CcPlaySound1E);
00729             } else {
00730               HandleStationPlacement(start_tile, end_tile);
00731             }
00732           } else {
00733             /* Waypoint */
00734             if (_remove_button_clicked) {
00735               DoCommandP(end_tile, start_tile, _ctrl_pressed ? 0 : 1, CMD_REMOVE_FROM_RAIL_WAYPOINT | CMD_MSG(STR_ERROR_CAN_T_REMOVE_TRAIN_WAYPOINT), CcPlaySound1E);
00736             } else {
00737               TileArea ta(start_tile, end_tile);
00738               uint32 p1 = _cur_railtype | (select_method == VPM_FIX_X ? AXIS_X : AXIS_Y) << 4 | ta.w << 8 | ta.h << 16 | _ctrl_pressed << 24;
00739               uint32 p2 = STAT_CLASS_WAYP | _cur_waypoint_type << 8 | INVALID_STATION << 16;
00740 
00741               CommandContainer cmdcont = { ta.tile, p1, p2, CMD_BUILD_RAIL_WAYPOINT | CMD_MSG(STR_ERROR_CAN_T_BUILD_TRAIN_WAYPOINT), CcPlaySound1E, "" };
00742               ShowSelectWaypointIfNeeded(cmdcont, ta);
00743             }
00744           }
00745           break;
00746       }
00747     }
00748   }
00749 
00750   virtual void OnPlaceObjectAbort()
00751   {
00752     this->RaiseButtons();
00753     this->DisableWidget(RTW_REMOVE);
00754     this->SetWidgetDirty(RTW_REMOVE);
00755 
00756     DeleteWindowById(WC_BUILD_SIGNAL, TRANSPORT_RAIL);
00757     DeleteWindowById(WC_BUILD_STATION, TRANSPORT_RAIL);
00758     DeleteWindowById(WC_BUILD_DEPOT, TRANSPORT_RAIL);
00759     DeleteWindowById(WC_SELECT_STATION, 0);
00760     DeleteWindowByClass(WC_BUILD_BRIDGE);
00761   }
00762 
00763   virtual void OnPlacePresize(Point pt, TileIndex tile)
00764   {
00765     DoCommand(tile, _cur_railtype | (TRANSPORT_RAIL << 8), 0, DC_AUTO, CMD_BUILD_TUNNEL);
00766     VpSetPresizeRange(tile, _build_tunnel_endtile == 0 ? tile : _build_tunnel_endtile);
00767   }
00768 
00769   virtual EventState OnCTRLStateChange()
00770   {
00771     /* do not toggle Remove button by Ctrl when placing station */
00772     if (!this->IsWidgetLowered(RTW_BUILD_STATION) && !this->IsWidgetLowered(RTW_BUILD_WAYPOINT) && RailToolbar_CtrlChanged(this)) return ES_HANDLED;
00773     return ES_NOT_HANDLED;
00774   }
00775 
00776   static Hotkey<BuildRailToolbarWindow> railtoolbar_hotkeys[];
00777 };
00778 
00779 const uint16 _railtoolbar_autorail_keys[] = {'5', 'A' | WKC_GLOBAL_HOTKEY, 0};
00780 
00781 Hotkey<BuildRailToolbarWindow> BuildRailToolbarWindow::railtoolbar_hotkeys[] = {
00782   Hotkey<BuildRailToolbarWindow>('1', "build_ns", RTW_BUILD_NS),
00783   Hotkey<BuildRailToolbarWindow>('2', "build_x", RTW_BUILD_X),
00784   Hotkey<BuildRailToolbarWindow>('3', "build_ew", RTW_BUILD_EW),
00785   Hotkey<BuildRailToolbarWindow>('4', "build_y", RTW_BUILD_Y),
00786   Hotkey<BuildRailToolbarWindow>(_railtoolbar_autorail_keys, "autorail", RTW_AUTORAIL),
00787   Hotkey<BuildRailToolbarWindow>('6', "demolish", RTW_DEMOLISH),
00788   Hotkey<BuildRailToolbarWindow>('7', "depot", RTW_BUILD_DEPOT),
00789   Hotkey<BuildRailToolbarWindow>('8', "waypoint", RTW_BUILD_WAYPOINT),
00790   Hotkey<BuildRailToolbarWindow>('9', "station", RTW_BUILD_STATION),
00791   Hotkey<BuildRailToolbarWindow>('S', "signal", RTW_BUILD_SIGNALS),
00792   Hotkey<BuildRailToolbarWindow>('B', "bridge", RTW_BUILD_BRIDGE),
00793   Hotkey<BuildRailToolbarWindow>('T', "tunnel", RTW_BUILD_TUNNEL),
00794   Hotkey<BuildRailToolbarWindow>('R', "remove", RTW_REMOVE),
00795   Hotkey<BuildRailToolbarWindow>('C', "convert", RTW_CONVERT_RAIL),
00796   HOTKEY_LIST_END(BuildRailToolbarWindow)
00797 };
00798 Hotkey<BuildRailToolbarWindow> *_railtoolbar_hotkeys = BuildRailToolbarWindow::railtoolbar_hotkeys;
00799 
00800 static const NWidgetPart _nested_build_rail_widgets[] = {
00801   NWidget(NWID_HORIZONTAL),
00802     NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
00803     NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, RTW_CAPTION), SetDataTip(STR_WHITE_STRING, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00804     NWidget(WWT_STICKYBOX, COLOUR_DARK_GREEN),
00805   EndContainer(),
00806   NWidget(NWID_HORIZONTAL),
00807     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_NS),
00808             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_RAIL_NS, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_TRACK),
00809     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_X),
00810             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_RAIL_NE, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_TRACK),
00811     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_EW),
00812             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_RAIL_EW, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_TRACK),
00813     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_Y),
00814             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_RAIL_NW, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_TRACK),
00815     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_AUTORAIL),
00816             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_AUTORAIL, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_AUTORAIL),
00817 
00818     NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetMinimalSize(4, 22), SetDataTip(0x0, STR_NULL), EndContainer(),
00819 
00820     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_DEMOLISH),
00821             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DYNAMITE, STR_TOOLTIP_DEMOLISH_BUILDINGS_ETC),
00822     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_DEPOT),
00823             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_DEPOT_RAIL, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_TRAIN_DEPOT_FOR_BUILDING),
00824     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_WAYPOINT),
00825             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_WAYPOINT, STR_RAIL_TOOLBAR_TOOLTIP_CONVERT_RAIL_TO_WAYPOINT),
00826     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_STATION),
00827             SetFill(0, 1), SetMinimalSize(42, 22), SetDataTip(SPR_IMG_RAIL_STATION, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_STATION),
00828     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_SIGNALS),
00829             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_RAIL_SIGNALS, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_SIGNALS),
00830     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_BRIDGE),
00831             SetFill(0, 1), SetMinimalSize(42, 22), SetDataTip(SPR_IMG_BRIDGE, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_BRIDGE),
00832     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_BUILD_TUNNEL),
00833             SetFill(0, 1), SetMinimalSize(20, 22), SetDataTip(SPR_IMG_TUNNEL_RAIL, STR_RAIL_TOOLBAR_TOOLTIP_BUILD_RAILROAD_TUNNEL),
00834     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_REMOVE),
00835             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_REMOVE, STR_RAIL_TOOLBAR_TOOLTIP_TOGGLE_BUILD_REMOVE_FOR),
00836     NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, RTW_CONVERT_RAIL),
00837             SetFill(0, 1), SetMinimalSize(22, 22), SetDataTip(SPR_IMG_CONVERT_RAIL, STR_RAIL_TOOLBAR_TOOLTIP_CONVERT_RAIL),
00838   EndContainer(),
00839 };
00840 
00841 static const WindowDesc _build_rail_desc(
00842   WDP_ALIGN_TOOLBAR, 0, 0,
00843   WC_BUILD_TOOLBAR, WC_NONE,
00844   WDF_CONSTRUCTION,
00845   _nested_build_rail_widgets, lengthof(_nested_build_rail_widgets)
00846 );
00847 
00848 
00857 Window *ShowBuildRailToolbar(RailType railtype)
00858 {
00859   if (!Company::IsValidID(_local_company)) return NULL;
00860   if (!ValParamRailtype(railtype)) return NULL;
00861 
00862   DeleteWindowByClass(WC_BUILD_TOOLBAR);
00863   _cur_railtype = railtype;
00864   _remove_button_clicked = false;
00865   return new BuildRailToolbarWindow(&_build_rail_desc, TRANSPORT_RAIL, railtype);
00866 }
00867 
00868 EventState RailToolbarGlobalHotkeys(uint16 key, uint16 keycode)
00869 {
00870   extern RailType _last_built_railtype;
00871   int num = CheckHotkeyMatch<BuildRailToolbarWindow>(_railtoolbar_hotkeys, keycode, NULL, true);
00872   if (num == -1) return ES_NOT_HANDLED;
00873   Window *w = ShowBuildRailToolbar(_last_built_railtype);
00874   if (w == NULL) return ES_NOT_HANDLED;
00875   return w->OnKeyPress(key, keycode);
00876 }
00877 
00878 /* TODO: For custom stations, respect their allowed platforms/lengths bitmasks!
00879  * --pasky */
00880 
00881 static void HandleStationPlacement(TileIndex start, TileIndex end)
00882 {
00883   TileArea ta(start, end);
00884   uint numtracks = ta.w;
00885   uint platlength = ta.h;
00886 
00887   if (_railstation.orientation == AXIS_X) Swap(numtracks, platlength);
00888 
00889   uint32 p1 = _cur_railtype | _railstation.orientation << 4 | numtracks << 8 | platlength << 16 | _ctrl_pressed << 24;
00890   uint32 p2 = _railstation.station_class | _railstation.station_type << 8 | INVALID_STATION << 16;
00891 
00892   CommandContainer cmdcont = { ta.tile, p1, p2, CMD_BUILD_RAIL_STATION | CMD_MSG(STR_ERROR_CAN_T_BUILD_RAILROAD_STATION), CcStation, "" };
00893   ShowSelectStationIfNeeded(cmdcont, ta);
00894 }
00895 
00897 enum BuildRailStationWidgets {
00898   BRSW_PLATFORM_DIR_X,       
00899   BRSW_PLATFORM_DIR_Y,       
00900 
00901   BRSW_PLATFORM_NUM_1,       
00902   BRSW_PLATFORM_NUM_2,       
00903   BRSW_PLATFORM_NUM_3,       
00904   BRSW_PLATFORM_NUM_4,       
00905   BRSW_PLATFORM_NUM_5,       
00906   BRSW_PLATFORM_NUM_6,       
00907   BRSW_PLATFORM_NUM_7,       
00908 
00909   BRSW_PLATFORM_LEN_1,       
00910   BRSW_PLATFORM_LEN_2,       
00911   BRSW_PLATFORM_LEN_3,       
00912   BRSW_PLATFORM_LEN_4,       
00913   BRSW_PLATFORM_LEN_5,       
00914   BRSW_PLATFORM_LEN_6,       
00915   BRSW_PLATFORM_LEN_7,       
00916 
00917   BRSW_PLATFORM_DRAG_N_DROP, 
00918 
00919   BRSW_HIGHLIGHT_OFF,        
00920   BRSW_HIGHLIGHT_ON,         
00921   BRSW_COVERAGE_TEXTS,       
00922 
00923   BRSW_MATRIX,               
00924   BRSW_IMAGE,                
00925   BRSW_MATRIX_SCROLL,        
00926 
00927   BRSW_SHOW_NEWST_ADDITIONS, 
00928   BRSW_SHOW_NEWST_MATRIX,    
00929   BRSW_SHOW_NEWST_RESIZE,    
00930   BRSW_SHOW_NEWST_TYPE,      
00931   BRSW_NEWST_LIST,           
00932   BRSW_NEWST_SCROLL,         
00933 
00934   BRSW_PLATFORM_NUM_BEGIN = BRSW_PLATFORM_NUM_1 - 1,
00935   BRSW_PLATFORM_LEN_BEGIN = BRSW_PLATFORM_LEN_1 - 1,
00936 };
00937 
00938 struct BuildRailStationWindow : public PickerWindowBase {
00939 private:
00940   uint line_height;     
00941   uint coverage_height; 
00942   Scrollbar *vscroll;   
00943   Scrollbar *vscroll2;  
00944 
00950   void CheckSelectedSize(const StationSpec *statspec)
00951   {
00952     if (statspec == NULL || _settings_client.gui.station_dragdrop) return;
00953 
00954     /* If current number of tracks is not allowed, make it as big as possible (which is always less than currently selected) */
00955     if (HasBit(statspec->disallowed_platforms, _settings_client.gui.station_numtracks - 1)) {
00956       this->RaiseWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
00957       _settings_client.gui.station_numtracks = 1;
00958       while (HasBit(statspec->disallowed_platforms, _settings_client.gui.station_numtracks - 1)) {
00959         _settings_client.gui.station_numtracks++;
00960       }
00961       this->LowerWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
00962     }
00963 
00964     if (HasBit(statspec->disallowed_lengths, _settings_client.gui.station_platlength - 1)) {
00965       this->RaiseWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
00966       _settings_client.gui.station_platlength = 1;
00967       while (HasBit(statspec->disallowed_lengths, _settings_client.gui.station_platlength - 1)) {
00968         _settings_client.gui.station_platlength++;
00969       }
00970       this->LowerWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
00971     }
00972   }
00973 
00974 public:
00975   BuildRailStationWindow(const WindowDesc *desc, Window *parent, bool newstation) : PickerWindowBase(parent)
00976   {
00977     this->coverage_height = 2 * FONT_HEIGHT_NORMAL + 3 * WD_PAR_VSEP_NORMAL;
00978     this->vscroll = NULL;
00979     _railstation.newstations = newstation;
00980 
00981     this->CreateNestedTree(desc);
00982     NWidgetStacked *newst_additions = this->GetWidget<NWidgetStacked>(BRSW_SHOW_NEWST_ADDITIONS);
00983     newst_additions->SetDisplayedPlane(newstation ? 0 : SZSP_NONE);
00984     newst_additions = this->GetWidget<NWidgetStacked>(BRSW_SHOW_NEWST_MATRIX);
00985     newst_additions->SetDisplayedPlane(newstation ? 0 : SZSP_NONE);
00986     newst_additions = this->GetWidget<NWidgetStacked>(BRSW_SHOW_NEWST_RESIZE);
00987     newst_additions->SetDisplayedPlane(newstation ? 0 : SZSP_NONE);
00988     this->FinishInitNested(desc, TRANSPORT_RAIL);
00989 
00990     this->LowerWidget(_railstation.orientation + BRSW_PLATFORM_DIR_X);
00991     if (_settings_client.gui.station_dragdrop) {
00992       this->LowerWidget(BRSW_PLATFORM_DRAG_N_DROP);
00993     } else {
00994       this->LowerWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
00995       this->LowerWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
00996     }
00997     this->SetWidgetLoweredState(BRSW_HIGHLIGHT_OFF, !_settings_client.gui.station_show_coverage);
00998     this->SetWidgetLoweredState(BRSW_HIGHLIGHT_ON, _settings_client.gui.station_show_coverage);
00999 
01000     if (!newstation || _railstation.station_class >= (int)StationClass::GetCount()) {
01001       /* New stations are not available or changed, so ensure the default station
01002        * type is 'selected'. */
01003       _railstation.station_class = STAT_CLASS_DFLT;
01004       _railstation.station_type = 0;
01005       this->vscroll2 = NULL;
01006     }
01007     if (newstation) {
01008       _railstation.station_count = StationClass::GetCount(_railstation.station_class);
01009       _railstation.station_type = min(_railstation.station_type, _railstation.station_count - 1);
01010 
01011       int count = 0;
01012       for (uint i = 0; i < StationClass::GetCount(); i++) {
01013         if (i == STAT_CLASS_WAYP) continue;
01014         count++;
01015       }
01016       this->vscroll = this->GetScrollbar(BRSW_NEWST_SCROLL);
01017       this->vscroll->SetCount(count);
01018       this->vscroll->SetCapacity(GB(this->GetWidget<NWidgetCore>(BRSW_NEWST_LIST)->widget_data, MAT_ROW_START, MAT_ROW_BITS));
01019       this->vscroll->SetPosition(Clamp(_railstation.station_class - 2, 0, max(this->vscroll->GetCount() - this->vscroll->GetCapacity(), 0)));
01020 
01021       this->vscroll2 = this->GetScrollbar(BRSW_MATRIX_SCROLL);
01022       NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(BRSW_MATRIX);
01023       matrix->SetScrollbar(this->vscroll2);
01024       matrix->SetCount(_railstation.station_count);
01025       matrix->SetClicked(_railstation.station_type);
01026     }
01027   }
01028 
01029   virtual ~BuildRailStationWindow()
01030   {
01031     DeleteWindowById(WC_SELECT_STATION, 0);
01032   }
01033 
01034   virtual void OnPaint()
01035   {
01036     bool newstations = _railstation.newstations;
01037     const StationSpec *statspec = newstations ? StationClass::Get(_railstation.station_class, _railstation.station_type) : NULL;
01038 
01039     if (_settings_client.gui.station_dragdrop) {
01040       SetTileSelectSize(1, 1);
01041     } else {
01042       int x = _settings_client.gui.station_numtracks;
01043       int y = _settings_client.gui.station_platlength;
01044       if (_railstation.orientation == AXIS_X) Swap(x, y);
01045       if (!_remove_button_clicked) {
01046         SetTileSelectSize(x, y);
01047       }
01048     }
01049 
01050     int rad = (_settings_game.station.modified_catchment) ? CA_TRAIN : CA_UNMODIFIED;
01051 
01052     if (_settings_client.gui.station_show_coverage) SetTileSelectBigSize(-rad, -rad, 2 * rad, 2 * rad);
01053 
01054     for (uint bits = 0; bits < 7; bits++) {
01055       bool disable = bits >= _settings_game.station.station_spread;
01056       if (statspec == NULL) {
01057         this->SetWidgetDisabledState(bits + BRSW_PLATFORM_NUM_1, disable);
01058         this->SetWidgetDisabledState(bits + BRSW_PLATFORM_LEN_1, disable);
01059       } else {
01060         this->SetWidgetDisabledState(bits + BRSW_PLATFORM_NUM_1, HasBit(statspec->disallowed_platforms, bits) || disable);
01061         this->SetWidgetDisabledState(bits + BRSW_PLATFORM_LEN_1, HasBit(statspec->disallowed_lengths,   bits) || disable);
01062       }
01063     }
01064 
01065     this->DrawWidgets();
01066 
01067     /* 'Accepts' and 'Supplies' texts. */
01068     NWidgetBase *cov = this->GetWidget<NWidgetBase>(BRSW_COVERAGE_TEXTS);
01069     int top = cov->pos_y + WD_PAR_VSEP_NORMAL;
01070     int left = cov->pos_x + WD_FRAMERECT_LEFT;
01071     int right = cov->pos_x + cov->current_x - WD_FRAMERECT_RIGHT;
01072     int bottom = cov->pos_y + cov->current_y;
01073     top = DrawStationCoverageAreaText(left, right, top, SCT_ALL, rad, false) + WD_PAR_VSEP_NORMAL;
01074     top = DrawStationCoverageAreaText(left, right, top, SCT_ALL, rad, true) + WD_PAR_VSEP_NORMAL;
01075     /* Resize the coverage text space if the text is not equally long as the window. */
01076     if (top != bottom) {
01077       this->coverage_height += top - bottom;
01078       this->ReInit();
01079     }
01080   }
01081 
01082   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01083   {
01084     switch (widget) {
01085       case BRSW_NEWST_LIST: {
01086         Dimension d = {0, 0};
01087         for (uint i = 0; i < StationClass::GetCount(); i++) {
01088           if (i == STAT_CLASS_WAYP) continue;
01089           SetDParam(0, StationClass::GetName((StationClassID)i));
01090           d = maxdim(d, GetStringBoundingBox(STR_BLACK_STRING));
01091         }
01092         size->width = max(size->width, d.width + padding.width);
01093         this->line_height = FONT_HEIGHT_NORMAL + WD_MATRIX_TOP + WD_MATRIX_BOTTOM;
01094         size->height = GB(this->GetWidget<NWidgetCore>(widget)->widget_data, MAT_ROW_START, MAT_ROW_BITS) * this->line_height;
01095         resize->height = this->line_height;
01096         break;
01097       }
01098 
01099       case BRSW_SHOW_NEWST_TYPE: {
01100         if (!_railstation.newstations) {
01101           size->width = 0;
01102           size->height = 0;
01103           break;
01104         }
01105 
01106         /* If newstations exist, compute the non-zero minimal size. */
01107         Dimension d = {0, 0};
01108         StringID str = this->GetWidget<NWidgetCore>(widget)->widget_data;
01109         for (StationClassID statclass = STAT_CLASS_BEGIN; statclass < (StationClassID)StationClass::GetCount(); statclass++) {
01110           if (statclass == STAT_CLASS_WAYP) continue;
01111           for (uint16 j = 0; j < StationClass::GetCount(statclass); j++) {
01112             const StationSpec *statspec = StationClass::Get(statclass, j);
01113             SetDParam(0, (statspec != NULL && statspec->name != 0) ? statspec->name : STR_STATION_CLASS_DFLT);
01114             d = maxdim(d, GetStringBoundingBox(str));
01115           }
01116         }
01117         size->width = max(size->width, d.width + padding.width);
01118 
01119         break;
01120       }
01121 
01122       case BRSW_COVERAGE_TEXTS:
01123         size->height = this->coverage_height;
01124         break;
01125 
01126       case BRSW_MATRIX:
01127         fill->height = 1;
01128         resize->height = 1;
01129         break;
01130     }
01131   }
01132 
01133   virtual void DrawWidget(const Rect &r, int widget) const
01134   {
01135     DrawPixelInfo tmp_dpi;
01136 
01137     switch (GB(widget, 0, 16)) {
01138       case BRSW_PLATFORM_DIR_X:
01139         /* Set up a clipping area for the '/' station preview */
01140         if (FillDrawPixelInfo(&tmp_dpi, r.left, r.top, r.right - r.left + 1, r.bottom - r.top + 1)) {
01141           DrawPixelInfo *old_dpi = _cur_dpi;
01142           _cur_dpi = &tmp_dpi;
01143           if (!DrawStationTile(32, 16, _cur_railtype, AXIS_X, _railstation.station_class, _railstation.station_type)) {
01144             StationPickerDrawSprite(32, 16, STATION_RAIL, _cur_railtype, INVALID_ROADTYPE, 2);
01145           }
01146           _cur_dpi = old_dpi;
01147         }
01148         break;
01149 
01150       case BRSW_PLATFORM_DIR_Y:
01151         /* Set up a clipping area for the '\' station preview */
01152         if (FillDrawPixelInfo(&tmp_dpi, r.left, r.top, r.right - r.left + 1, r.bottom - r.top + 1)) {
01153           DrawPixelInfo *old_dpi = _cur_dpi;
01154           _cur_dpi = &tmp_dpi;
01155           if (!DrawStationTile(32, 16, _cur_railtype, AXIS_Y, _railstation.station_class, _railstation.station_type)) {
01156             StationPickerDrawSprite(32, 16, STATION_RAIL, _cur_railtype, INVALID_ROADTYPE, 3);
01157           }
01158           _cur_dpi = old_dpi;
01159         }
01160         break;
01161 
01162       case BRSW_NEWST_LIST: {
01163         uint statclass = 0;
01164         uint row = 0;
01165         for (uint i = 0; i < StationClass::GetCount(); i++) {
01166           if (i == STAT_CLASS_WAYP) continue;
01167           if (this->vscroll->IsVisible(statclass)) {
01168             SetDParam(0, StationClass::GetName((StationClassID)i));
01169             DrawString(r.left + WD_MATRIX_LEFT, r.right - WD_MATRIX_RIGHT, row * this->line_height + r.top + WD_MATRIX_TOP, STR_JUST_STRING,
01170                 (StationClassID)i == _railstation.station_class ? TC_WHITE : TC_BLACK);
01171             row++;
01172           }
01173           statclass++;
01174         }
01175         break;
01176       }
01177 
01178       case BRSW_IMAGE: {
01179         byte type = GB(widget, 16, 16);
01180         assert(type < _railstation.station_count);
01181         /* Check station availability callback */
01182         const StationSpec *statspec = StationClass::Get(_railstation.station_class, type);
01183         if (statspec != NULL && HasBit(statspec->callback_mask, CBM_STATION_AVAIL) &&
01184             GB(GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, NULL, INVALID_TILE), 0, 8) == 0) {
01185           GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_BLACK, FILLRECT_CHECKER);
01186         }
01187 
01188         /* Set up a clipping area for the station preview. */
01189         if (FillDrawPixelInfo(&tmp_dpi, r.left + 1, r.top + 1, r.right - (r.left + 1) + 1, r.bottom - 1 - (r.top + 1) + 1)) {
01190           DrawPixelInfo *old_dpi = _cur_dpi;
01191           _cur_dpi = &tmp_dpi;
01192           if (!DrawStationTile(31, 29, _cur_railtype, _railstation.orientation, _railstation.station_class, type)) {
01193             StationPickerDrawSprite(31, 29, STATION_RAIL, _cur_railtype, INVALID_ROADTYPE, 2 + _railstation.orientation);
01194           }
01195           _cur_dpi = old_dpi;
01196         }
01197         break;
01198       }
01199     }
01200   }
01201 
01202   virtual void OnResize()
01203   {
01204     if (this->vscroll != NULL) { // New stations available.
01205       this->vscroll->SetCapacityFromWidget(this, BRSW_NEWST_LIST);
01206       this->GetWidget<NWidgetCore>(BRSW_NEWST_LIST)->widget_data = (this->vscroll->GetCapacity() << MAT_ROW_START) + (1 << MAT_COL_START);
01207     }
01208   }
01209 
01210   virtual void SetStringParameters(int widget) const
01211   {
01212     if (widget == BRSW_SHOW_NEWST_TYPE) {
01213       const StationSpec *statspec = StationClass::Get(_railstation.station_class, _railstation.station_type);
01214       SetDParam(0, (statspec != NULL && statspec->name != 0) ? statspec->name : STR_STATION_CLASS_DFLT);
01215     }
01216   }
01217 
01218   virtual void OnClick(Point pt, int widget, int click_count)
01219   {
01220     switch (GB(widget, 0, 16)) {
01221       case BRSW_PLATFORM_DIR_X:
01222       case BRSW_PLATFORM_DIR_Y:
01223         this->RaiseWidget(_railstation.orientation + BRSW_PLATFORM_DIR_X);
01224         _railstation.orientation = (Axis)(widget - BRSW_PLATFORM_DIR_X);
01225         this->LowerWidget(_railstation.orientation + BRSW_PLATFORM_DIR_X);
01226         SndPlayFx(SND_15_BEEP);
01227         this->SetDirty();
01228         DeleteWindowById(WC_SELECT_STATION, 0);
01229         break;
01230 
01231       case BRSW_PLATFORM_NUM_1:
01232       case BRSW_PLATFORM_NUM_2:
01233       case BRSW_PLATFORM_NUM_3:
01234       case BRSW_PLATFORM_NUM_4:
01235       case BRSW_PLATFORM_NUM_5:
01236       case BRSW_PLATFORM_NUM_6:
01237       case BRSW_PLATFORM_NUM_7: {
01238         this->RaiseWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
01239         this->RaiseWidget(BRSW_PLATFORM_DRAG_N_DROP);
01240 
01241         _settings_client.gui.station_numtracks = widget - BRSW_PLATFORM_NUM_BEGIN;
01242         _settings_client.gui.station_dragdrop = false;
01243 
01244         _settings_client.gui.station_dragdrop = false;
01245 
01246         const StationSpec *statspec = _railstation.newstations ? StationClass::Get(_railstation.station_class, _railstation.station_type) : NULL;
01247         if (statspec != NULL && HasBit(statspec->disallowed_lengths, _settings_client.gui.station_platlength - 1)) {
01248           /* The previously selected number of platforms in invalid */
01249           for (uint i = 0; i < 7; i++) {
01250             if (!HasBit(statspec->disallowed_lengths, i)) {
01251               this->RaiseWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
01252               _settings_client.gui.station_platlength = i + 1;
01253               break;
01254             }
01255           }
01256         }
01257 
01258         this->LowerWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
01259         this->LowerWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
01260         SndPlayFx(SND_15_BEEP);
01261         this->SetDirty();
01262         DeleteWindowById(WC_SELECT_STATION, 0);
01263         break;
01264       }
01265 
01266       case BRSW_PLATFORM_LEN_1:
01267       case BRSW_PLATFORM_LEN_2:
01268       case BRSW_PLATFORM_LEN_3:
01269       case BRSW_PLATFORM_LEN_4:
01270       case BRSW_PLATFORM_LEN_5:
01271       case BRSW_PLATFORM_LEN_6:
01272       case BRSW_PLATFORM_LEN_7: {
01273         this->RaiseWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
01274         this->RaiseWidget(BRSW_PLATFORM_DRAG_N_DROP);
01275 
01276         _settings_client.gui.station_platlength = widget - BRSW_PLATFORM_LEN_BEGIN;
01277         _settings_client.gui.station_dragdrop = false;
01278 
01279         _settings_client.gui.station_dragdrop = false;
01280 
01281         const StationSpec *statspec = _railstation.newstations ? StationClass::Get(_railstation.station_class, _railstation.station_type) : NULL;
01282         if (statspec != NULL && HasBit(statspec->disallowed_platforms, _settings_client.gui.station_numtracks - 1)) {
01283           /* The previously selected number of tracks in invalid */
01284           for (uint i = 0; i < 7; i++) {
01285             if (!HasBit(statspec->disallowed_platforms, i)) {
01286               this->RaiseWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
01287               _settings_client.gui.station_numtracks = i + 1;
01288               break;
01289             }
01290           }
01291         }
01292 
01293         this->LowerWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
01294         this->LowerWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
01295         SndPlayFx(SND_15_BEEP);
01296         this->SetDirty();
01297         DeleteWindowById(WC_SELECT_STATION, 0);
01298         break;
01299       }
01300 
01301       case BRSW_PLATFORM_DRAG_N_DROP: {
01302         _settings_client.gui.station_dragdrop ^= true;
01303 
01304         this->ToggleWidgetLoweredState(BRSW_PLATFORM_DRAG_N_DROP);
01305 
01306         /* get the first allowed length/number of platforms */
01307         const StationSpec *statspec = _railstation.newstations ? StationClass::Get(_railstation.station_class, _railstation.station_type) : NULL;
01308         if (statspec != NULL && HasBit(statspec->disallowed_lengths, _settings_client.gui.station_platlength - 1)) {
01309           for (uint i = 0; i < 7; i++) {
01310             if (!HasBit(statspec->disallowed_lengths, i)) {
01311               this->RaiseWidget(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN);
01312               _settings_client.gui.station_platlength = i + 1;
01313               break;
01314             }
01315           }
01316         }
01317         if (statspec != NULL && HasBit(statspec->disallowed_platforms, _settings_client.gui.station_numtracks - 1)) {
01318           for (uint i = 0; i < 7; i++) {
01319             if (!HasBit(statspec->disallowed_platforms, i)) {
01320               this->RaiseWidget(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN);
01321               _settings_client.gui.station_numtracks = i + 1;
01322               break;
01323             }
01324           }
01325         }
01326 
01327         this->SetWidgetLoweredState(_settings_client.gui.station_numtracks + BRSW_PLATFORM_NUM_BEGIN, !_settings_client.gui.station_dragdrop);
01328         this->SetWidgetLoweredState(_settings_client.gui.station_platlength + BRSW_PLATFORM_LEN_BEGIN, !_settings_client.gui.station_dragdrop);
01329         SndPlayFx(SND_15_BEEP);
01330         this->SetDirty();
01331         DeleteWindowById(WC_SELECT_STATION, 0);
01332         break;
01333       }
01334 
01335       case BRSW_HIGHLIGHT_OFF:
01336       case BRSW_HIGHLIGHT_ON:
01337         _settings_client.gui.station_show_coverage = (widget != BRSW_HIGHLIGHT_OFF);
01338 
01339         this->SetWidgetLoweredState(BRSW_HIGHLIGHT_OFF, !_settings_client.gui.station_show_coverage);
01340         this->SetWidgetLoweredState(BRSW_HIGHLIGHT_ON, _settings_client.gui.station_show_coverage);
01341         SndPlayFx(SND_15_BEEP);
01342         this->SetDirty();
01343         break;
01344 
01345       case BRSW_NEWST_LIST: {
01346         int y = this->vscroll->GetScrolledRowFromWidget(pt.y, this, BRSW_NEWST_LIST, 0, this->line_height);
01347         if (y >= (int)StationClass::GetCount()) return;
01348         for (uint i = 0; i < StationClass::GetCount(); i++) {
01349           if (i == STAT_CLASS_WAYP) continue;
01350           if (y == 0) {
01351             if (_railstation.station_class != (StationClassID)i) {
01352               _railstation.station_class = (StationClassID)i;
01353               _railstation.station_count = StationClass::GetCount(_railstation.station_class);
01354               _railstation.station_type  = min((int)_railstation.station_type, max(0, (int)_railstation.station_count - 1));
01355 
01356               this->CheckSelectedSize(StationClass::Get(_railstation.station_class, _railstation.station_type));
01357 
01358               NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(BRSW_MATRIX);
01359               matrix->SetCount(_railstation.station_count);
01360               matrix->SetClicked(_railstation.station_type);
01361             }
01362             SndPlayFx(SND_15_BEEP);
01363             this->SetDirty();
01364             DeleteWindowById(WC_SELECT_STATION, 0);
01365             break;
01366           }
01367           y--;
01368         }
01369         break;
01370       }
01371 
01372       case BRSW_IMAGE: {
01373         int y = GB(widget, 16, 16);
01374         if (y >= _railstation.station_count) return;
01375 
01376         /* Check station availability callback */
01377         const StationSpec *statspec = StationClass::Get(_railstation.station_class, y);
01378         if (statspec != NULL && HasBit(statspec->callback_mask, CBM_STATION_AVAIL) &&
01379             GB(GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, NULL, INVALID_TILE), 0, 8) == 0) return;
01380 
01381         _railstation.station_type = y;
01382 
01383         this->CheckSelectedSize(statspec);
01384         this->GetWidget<NWidgetMatrix>(BRSW_MATRIX)->SetClicked(_railstation.station_type);
01385 
01386         SndPlayFx(SND_15_BEEP);
01387         this->SetDirty();
01388         DeleteWindowById(WC_SELECT_STATION, 0);
01389         break;
01390       }
01391     }
01392   }
01393 
01394   virtual void OnTick()
01395   {
01396     CheckRedrawStationCoverage(this);
01397   }
01398 };
01399 
01400 static const NWidgetPart _nested_station_builder_widgets[] = {
01401   NWidget(NWID_HORIZONTAL),
01402     NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
01403     NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_STATION_BUILD_RAIL_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01404   EndContainer(),
01405   NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
01406     NWidget(NWID_HORIZONTAL),
01407       NWidget(NWID_VERTICAL),
01408         NWidget(NWID_SELECTION, INVALID_COLOUR, BRSW_SHOW_NEWST_ADDITIONS),
01409           NWidget(NWID_HORIZONTAL), SetPIP(7, 0, 7), SetPadding(2, 0, 1, 0),
01410             NWidget(WWT_MATRIX, COLOUR_GREY, BRSW_NEWST_LIST), SetMinimalSize(122, 71), SetFill(1, 0),
01411                 SetDataTip(0x501, STR_STATION_BUILD_STATION_CLASS_TOOLTIP), SetScrollbar(BRSW_NEWST_SCROLL),
01412             NWidget(NWID_VSCROLLBAR, COLOUR_GREY, BRSW_NEWST_SCROLL),
01413           EndContainer(),
01414         EndContainer(),
01415         NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetMinimalSize(144, 11), SetDataTip(STR_STATION_BUILD_ORIENTATION, STR_NULL), SetPadding(1, 2, 0, 2),
01416         NWidget(NWID_HORIZONTAL),
01417           NWidget(NWID_SPACER), SetMinimalSize(7, 0), SetFill(1, 0),
01418           NWidget(WWT_PANEL, COLOUR_GREY, BRSW_PLATFORM_DIR_X), SetMinimalSize(66, 48), SetFill(0, 0), SetDataTip(0x0, STR_STATION_BUILD_RAILROAD_ORIENTATION_TOOLTIP), EndContainer(),
01419           NWidget(NWID_SPACER), SetMinimalSize(2, 0), SetFill(1, 0),
01420           NWidget(WWT_PANEL, COLOUR_GREY, BRSW_PLATFORM_DIR_Y), SetMinimalSize(66, 48), SetFill(0, 0), SetDataTip(0x0, STR_STATION_BUILD_RAILROAD_ORIENTATION_TOOLTIP), EndContainer(),
01421           NWidget(NWID_SPACER), SetMinimalSize(7, 0), SetFill(1, 0),
01422         EndContainer(),
01423         NWidget(WWT_LABEL, COLOUR_DARK_GREEN, BRSW_SHOW_NEWST_TYPE), SetMinimalSize(144, 11), SetDataTip(STR_ORANGE_STRING, STR_NULL), SetPadding(1, 2, 4, 2),
01424         NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetMinimalSize(144, 11), SetDataTip(STR_STATION_BUILD_NUMBER_OF_TRACKS, STR_NULL), SetPadding(0, 2, 0, 2),
01425         NWidget(NWID_HORIZONTAL),
01426           NWidget(NWID_SPACER), SetFill(1, 0),
01427           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_1), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_1, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01428           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_2), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_2, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01429           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_3), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_3, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01430           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_4), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_4, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01431           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_5), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_5, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01432           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_6), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_6, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01433           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_NUM_7), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_7, STR_STATION_BUILD_NUMBER_OF_TRACKS_TOOLTIP),
01434           NWidget(NWID_SPACER), SetFill(1, 0),
01435         EndContainer(),
01436         NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetMinimalSize(144, 11), SetDataTip(STR_STATION_BUILD_PLATFORM_LENGTH, STR_NULL), SetPadding(2, 2, 0, 2),
01437         NWidget(NWID_HORIZONTAL),
01438           NWidget(NWID_SPACER), SetFill(1, 0),
01439           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_1), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_1, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01440           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_2), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_2, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01441           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_3), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_3, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01442           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_4), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_4, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01443           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_5), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_5, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01444           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_6), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_6, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01445           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_LEN_7), SetMinimalSize(15, 12), SetDataTip(STR_BLACK_7, STR_STATION_BUILD_PLATFORM_LENGTH_TOOLTIP),
01446           NWidget(NWID_SPACER), SetFill(1, 0),
01447         EndContainer(),
01448         NWidget(NWID_SPACER), SetMinimalSize(0, 2),
01449         NWidget(NWID_HORIZONTAL),
01450           NWidget(NWID_SPACER), SetMinimalSize(2, 0), SetFill(1, 0),
01451           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_PLATFORM_DRAG_N_DROP), SetMinimalSize(75, 12), SetDataTip(STR_STATION_BUILD_DRAG_DROP, STR_STATION_BUILD_DRAG_DROP_TOOLTIP),
01452           NWidget(NWID_SPACER), SetMinimalSize(2, 0), SetFill(1, 0),
01453         EndContainer(),
01454         NWidget(WWT_LABEL, COLOUR_DARK_GREEN), SetMinimalSize(144, 11), SetDataTip(STR_STATION_BUILD_COVERAGE_AREA_TITLE, STR_NULL), SetPadding(3, 2, 0, 2),
01455         NWidget(NWID_HORIZONTAL),
01456           NWidget(NWID_SPACER), SetMinimalSize(2, 0), SetFill(1, 0),
01457           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_HIGHLIGHT_OFF), SetMinimalSize(60, 12),
01458                         SetDataTip(STR_STATION_BUILD_COVERAGE_OFF, STR_STATION_BUILD_COVERAGE_AREA_OFF_TOOLTIP),
01459           NWidget(WWT_TEXTBTN, COLOUR_GREY, BRSW_HIGHLIGHT_ON), SetMinimalSize(60, 12),
01460                         SetDataTip(STR_STATION_BUILD_COVERAGE_ON, STR_STATION_BUILD_COVERAGE_AREA_ON_TOOLTIP),
01461           NWidget(NWID_SPACER), SetMinimalSize(2, 0), SetFill(1, 0),
01462         EndContainer(),
01463       EndContainer(),
01464       NWidget(NWID_SELECTION, INVALID_COLOUR, BRSW_SHOW_NEWST_MATRIX),
01465         /* We need an additional background for the matrix, as the matrix cannot handle the scrollbar due to not being an NWidgetCore. */
01466         NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetScrollbar(BRSW_MATRIX_SCROLL),
01467           NWidget(NWID_HORIZONTAL),
01468             NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, BRSW_MATRIX), SetScrollbar(BRSW_MATRIX_SCROLL), SetPIP(0, 2, 0), SetPadding(2, 0, 0, 0),
01469               NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BRSW_IMAGE), SetMinimalSize(66, 60),
01470                   SetFill(0, 0), SetResize(0, 0), SetDataTip(0x0, STR_STATION_BUILD_STATION_TYPE_TOOLTIP), SetScrollbar(BRSW_MATRIX_SCROLL),
01471               EndContainer(),
01472             EndContainer(),
01473             NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, BRSW_MATRIX_SCROLL),
01474           EndContainer(),
01475         EndContainer(),
01476       EndContainer(),
01477     EndContainer(),
01478     NWidget(NWID_HORIZONTAL),
01479       NWidget(WWT_EMPTY, INVALID_COLOUR, BRSW_COVERAGE_TEXTS), SetFill(1, 1), SetResize(1, 0),
01480       NWidget(NWID_SELECTION, INVALID_COLOUR, BRSW_SHOW_NEWST_RESIZE),
01481         NWidget(NWID_VERTICAL),
01482           NWidget(WWT_PANEL, COLOUR_DARK_GREEN), SetFill(0, 1), EndContainer(),
01483           NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
01484         EndContainer(),
01485       EndContainer(),
01486     EndContainer(),
01487   EndContainer(),
01488 };
01489 
01491 static const WindowDesc _station_builder_desc(
01492   WDP_AUTO, 350, 0,
01493   WC_BUILD_STATION, WC_BUILD_TOOLBAR,
01494   WDF_CONSTRUCTION,
01495   _nested_station_builder_widgets, lengthof(_nested_station_builder_widgets)
01496 );
01497 
01499 static void ShowStationBuilder(Window *parent)
01500 {
01501   bool newstations = StationClass::GetCount() > 2 || StationClass::GetCount(STAT_CLASS_DFLT) != 1;
01502   new BuildRailStationWindow(&_station_builder_desc, parent, newstations);
01503 }
01504 
01506 enum BuildSignalWidgets {
01507   BSW_SEMAPHORE_NORM,
01508   BSW_SEMAPHORE_ENTRY,
01509   BSW_SEMAPHORE_EXIT,
01510   BSW_SEMAPHORE_COMBO,
01511   BSW_SEMAPHORE_PROG,
01512   BSW_SEMAPHORE_SPEED,
01513   BSW_SEMAPHORE_PBS,
01514   BSW_SEMAPHORE_PBS_OWAY,
01515   BSW_ELECTRIC_NORM,
01516   BSW_ELECTRIC_ENTRY,
01517   BSW_ELECTRIC_EXIT,
01518   BSW_ELECTRIC_COMBO,
01519   BSW_ELECTRIC_PROG,
01520   BSW_ELECTRIC_SPEED,
01521   BSW_ELECTRIC_PBS,
01522   BSW_ELECTRIC_PBS_OWAY,
01523   BSW_CONVERT,
01524   BSW_PROGRAM,
01525   BSW_DRAG_SIGNALS_DENSITY,
01526   BSW_DRAG_SIGNALS_DENSITY_LABEL,
01527   BSW_DRAG_SIGNALS_DENSITY_DECREASE,
01528   BSW_DRAG_SIGNALS_DENSITY_INCREASE,
01529 };
01530 
01531 struct BuildSignalWindow : public PickerWindowBase {
01532 private:
01540   void DrawSignalSprite(byte widget_index, SpriteID image) const
01541   {
01542     /* First get the right image, which is one later for 'green' signals. */
01543     image += this->IsWidgetLowered(widget_index);
01544 
01545     /* Next get the actual sprite so we can calculate the right offsets. */
01546     const Sprite *sprite = GetSprite(image, ST_NORMAL);
01547 
01548     /* For the x offset we want the sprite to be centered, so undo the offset
01549      * for sprite drawing and add half of the sprite's width. For the y offset
01550      * we want the sprite to be aligned on the bottom, so again we undo the
01551      * offset for sprite drawing and assume it is the bottom of the sprite. */
01552     int sprite_center_x_offset = sprite->x_offs + sprite->width / 2;
01553     int sprite_bottom_y_offset = sprite->height + sprite->y_offs;
01554 
01555     /* Next we want to know where on the window to draw. Calculate the center
01556      * and the bottom of the area to draw. */
01557     const NWidgetBase *widget = this->GetWidget<NWidgetBase>(widget_index);
01558     int widget_center_x = widget->pos_x + widget->current_x / 2;
01559     int widget_bottom_y = widget->pos_y + widget->current_y - 2;
01560 
01561     /* Finally we draw the signal. */
01562     DrawSprite(image, PAL_NONE,
01563         widget_center_x - sprite_center_x_offset + this->IsWidgetLowered(widget_index),
01564         widget_bottom_y - sprite_bottom_y_offset + this->IsWidgetLowered(widget_index));
01565   }
01566 
01567 public:
01568   BuildSignalWindow(const WindowDesc *desc, Window *parent) : PickerWindowBase(parent)
01569   {
01570     this->InitNested(desc, TRANSPORT_RAIL);
01571     this->OnInvalidateData();
01572   }
01573 
01574   virtual void SetStringParameters(int widget) const
01575   {
01576     switch (widget) {
01577       case BSW_DRAG_SIGNALS_DENSITY_LABEL:
01578         SetDParam(0, _settings_client.gui.drag_signals_density);
01579         break;
01580     }
01581   }
01582 
01583   virtual void DrawWidget(const Rect &r, int widget) const
01584   {
01585     if (IsInsideMM(widget, BSW_SEMAPHORE_NORM, BSW_ELECTRIC_PBS_OWAY + 1)) {
01586       /* We need to do some custom sprite widget drawing for the signals. */
01587       const SpriteID _signal_lookup[] = {
01588         SPR_IMG_SIGNAL_SEMAPHORE_NORM,  SPR_IMG_SIGNAL_SEMAPHORE_ENTRY, SPR_IMG_SIGNAL_SEMAPHORE_EXIT,
01589         SPR_IMG_SIGNAL_SEMAPHORE_COMBO, SPR_IMG_SIGNAL_SEMAPHORE_PROG, SPR_IMG_SIGNAL_SEMAPHORE_SPEED,
01590         SPR_IMG_SIGNAL_SEMAPHORE_PBS,   SPR_IMG_SIGNAL_SEMAPHORE_PBS_OWAY,
01591 
01592         SPR_IMG_SIGNAL_ELECTRIC_NORM,  SPR_IMG_SIGNAL_ELECTRIC_ENTRY, SPR_IMG_SIGNAL_ELECTRIC_EXIT,
01593         SPR_IMG_SIGNAL_ELECTRIC_COMBO, SPR_IMG_SIGNAL_ELECTRIC_PROG, SPR_IMG_SIGNAL_ELECTRIC_SPEED,
01594         SPR_IMG_SIGNAL_ELECTRIC_PBS,   SPR_IMG_SIGNAL_ELECTRIC_PBS_OWAY
01595       };
01596 
01597       this->DrawSignalSprite(widget, _signal_lookup[widget - BSW_SEMAPHORE_NORM]);
01598     }
01599   }
01600 
01601   inline SignalType TypeForClick(uint id)
01602   {
01603     switch(id) {
01604       case 0: return SIGTYPE_NORMAL;
01605       case 1: return SIGTYPE_ENTRY;
01606       case 2: return SIGTYPE_EXIT;
01607       case 3: return SIGTYPE_COMBO;
01608       case 4: return SIGTYPE_PROG;
01609       case 5: return SIGTYPE_SPEED;
01610       case 6: return SIGTYPE_PBS;
01611       case 7: return SIGTYPE_PBS_ONEWAY;
01612       default:
01613         assert(!"Bad signal type button ID");
01614         return SIGTYPE_NORMAL;
01615     }
01616   }
01617 
01618   virtual void OnClick(Point pt, int widget, int click_count)
01619   {
01620     switch (widget) {
01621       case BSW_SEMAPHORE_NORM:
01622       case BSW_SEMAPHORE_ENTRY:
01623       case BSW_SEMAPHORE_EXIT:
01624       case BSW_SEMAPHORE_COMBO:
01625       case BSW_SEMAPHORE_PROG:
01626       case BSW_SEMAPHORE_SPEED:
01627       case BSW_SEMAPHORE_PBS:
01628       case BSW_SEMAPHORE_PBS_OWAY:
01629       case BSW_ELECTRIC_NORM:
01630       case BSW_ELECTRIC_ENTRY:
01631       case BSW_ELECTRIC_EXIT:
01632       case BSW_ELECTRIC_COMBO:
01633       case BSW_ELECTRIC_PROG:
01634       case BSW_ELECTRIC_SPEED:
01635       case BSW_ELECTRIC_PBS:
01636       case BSW_ELECTRIC_PBS_OWAY:
01637         this->RaiseWidget((_cur_signal_variant == SIG_ELECTRIC ? BSW_ELECTRIC_NORM : BSW_SEMAPHORE_NORM) + _cur_signal_button);
01638 
01639         _cur_signal_button = (uint)((widget - BSW_SEMAPHORE_NORM) % (SIGTYPE_END));
01640         _cur_signal_type = TypeForClick(_cur_signal_button);
01641         _cur_signal_variant = widget >= BSW_ELECTRIC_NORM ? SIG_ELECTRIC : SIG_SEMAPHORE;
01642         break;
01643 
01644       case BSW_CONVERT:
01645         _convert_signal_button = !_convert_signal_button;
01646         if(_convert_signal_button) _program_signal_button = false;
01647         break;
01648 
01649       case BSW_PROGRAM:
01650         _program_signal_button = !_program_signal_button;
01651         if(_program_signal_button) _convert_signal_button = false;
01652         break;
01653 
01654       case BSW_DRAG_SIGNALS_DENSITY_DECREASE:
01655         if (_settings_client.gui.drag_signals_density > 1) {
01656           _settings_client.gui.drag_signals_density--;
01657           SetWindowDirty(WC_GAME_OPTIONS, 0);
01658         }
01659         break;
01660 
01661       case BSW_DRAG_SIGNALS_DENSITY_INCREASE:
01662         if (_settings_client.gui.drag_signals_density < 20) {
01663           _settings_client.gui.drag_signals_density++;
01664           SetWindowDirty(WC_GAME_OPTIONS, 0);
01665         }
01666         break;
01667 
01668       default: break;
01669     }
01670 
01671     this->InvalidateData();
01672   }
01673 
01679   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
01680   {
01681     if (!gui_scope) return;
01682     this->LowerWidget((_cur_signal_variant == SIG_ELECTRIC ? BSW_ELECTRIC_NORM : BSW_SEMAPHORE_NORM) + _cur_signal_button);
01683 
01684     this->SetWidgetLoweredState(BSW_CONVERT, _convert_signal_button);
01685     this->SetWidgetLoweredState(BSW_PROGRAM, _program_signal_button);
01686 
01687     this->SetWidgetDisabledState(BSW_DRAG_SIGNALS_DENSITY_DECREASE, _settings_client.gui.drag_signals_density == 1);
01688     this->SetWidgetDisabledState(BSW_DRAG_SIGNALS_DENSITY_INCREASE, _settings_client.gui.drag_signals_density == 20);
01689   }
01690 };
01691 
01693 static const NWidgetPart _nested_signal_builder_widgets[] = {
01694   NWidget(NWID_HORIZONTAL),
01695     NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
01696     NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_BUILD_SIGNAL_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01697   EndContainer(),
01698   NWidget(NWID_HORIZONTAL),
01699     NWidget(NWID_VERTICAL, NC_EQUALSIZE),
01700       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
01701         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_NORM),     SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_NORM_TOOLTIP), EndContainer(), SetFill(1, 1),
01702         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_ENTRY),    SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_ENTRY_TOOLTIP), EndContainer(), SetFill(1, 1),
01703         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_EXIT),     SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_EXIT_TOOLTIP), EndContainer(), SetFill(1, 1),
01704         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_COMBO),    SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_COMBO_TOOLTIP), EndContainer(), SetFill(1, 1),
01705         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_PROG),     SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_PROG_TOOLTIP), EndContainer(), SetFill(1, 1),
01706         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_SPEED),    SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_SPEED_TOOLTIP), EndContainer(), SetFill(1, 1),
01707         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_PBS),      SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_PBS_TOOLTIP), EndContainer(), SetFill(1, 1),
01708         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_SEMAPHORE_PBS_OWAY), SetDataTip(STR_NULL, STR_BUILD_SIGNAL_SEMAPHORE_PBS_OWAY_TOOLTIP), EndContainer(), SetFill(1, 1),
01709         NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, BSW_CONVERT), SetDataTip(SPR_IMG_SIGNAL_CONVERT, STR_BUILD_SIGNAL_CONVERT_TOOLTIP), SetFill(1, 1),
01710       EndContainer(),
01711       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
01712         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_NORM),     SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_NORM_TOOLTIP), EndContainer(), SetFill(1, 1),
01713         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_ENTRY),    SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_ENTRY_TOOLTIP), EndContainer(), SetFill(1, 1),
01714         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_EXIT),     SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_EXIT_TOOLTIP), EndContainer(), SetFill(1, 1),
01715         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_COMBO),    SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_COMBO_TOOLTIP), EndContainer(), SetFill(1, 1),
01716         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_PROG),     SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_PROG_TOOLTIP), EndContainer(), SetFill(1, 1),
01717         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_SPEED),    SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_SPEED_TOOLTIP), EndContainer(), SetFill(1, 1),
01718         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_PBS),      SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_PBS_TOOLTIP), EndContainer(), SetFill(1, 1),
01719         NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_ELECTRIC_PBS_OWAY), SetDataTip(STR_NULL, STR_BUILD_SIGNAL_ELECTRIC_PBS_OWAY_TOOLTIP), EndContainer(), SetFill(1, 1),
01720         NWidget(WWT_IMGBTN, COLOUR_DARK_GREEN, BSW_PROGRAM), SetDataTip(SPR_IMG_SETTINGS, STR_PROGRAM_SIGNAL_TOOLTIP), SetFill(1, 1),
01721       EndContainer(),
01722     EndContainer(),
01723     NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BSW_DRAG_SIGNALS_DENSITY), SetDataTip(STR_NULL, STR_BUILD_SIGNAL_DRAG_SIGNALS_DENSITY_TOOLTIP), SetFill(1, 1),
01724       NWidget(WWT_LABEL, COLOUR_DARK_GREEN, BSW_DRAG_SIGNALS_DENSITY_LABEL), SetDataTip(STR_ORANGE_INT, STR_BUILD_SIGNAL_DRAG_SIGNALS_DENSITY_TOOLTIP), SetFill(1, 1),
01725       NWidget(NWID_HORIZONTAL), SetPIP(2, 0, 2),
01726         NWidget(NWID_SPACER), SetFill(1, 0),
01727         NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, BSW_DRAG_SIGNALS_DENSITY_DECREASE), SetMinimalSize(9, 12), SetDataTip(AWV_DECREASE, STR_BUILD_SIGNAL_DRAG_SIGNALS_DENSITY_DECREASE_TOOLTIP),
01728         NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, BSW_DRAG_SIGNALS_DENSITY_INCREASE), SetMinimalSize(9, 12), SetDataTip(AWV_INCREASE, STR_BUILD_SIGNAL_DRAG_SIGNALS_DENSITY_INCREASE_TOOLTIP),
01729         NWidget(NWID_SPACER), SetFill(1, 0),
01730       EndContainer(),
01731       NWidget(NWID_SPACER), SetMinimalSize(0, 2), SetFill(1, 0),
01732     EndContainer(),
01733   EndContainer(),
01734 };
01735 
01737 static const WindowDesc _signal_builder_desc(
01738   WDP_AUTO, 0, 0,
01739   WC_BUILD_SIGNAL, WC_BUILD_TOOLBAR,
01740   WDF_UNCLICK_BUTTONS | WDF_CONSTRUCTION,
01741   _nested_signal_builder_widgets, lengthof(_nested_signal_builder_widgets)
01742 );
01743 
01747 static void ShowSignalBuilder(Window *parent)
01748 {
01749   new BuildSignalWindow(&_signal_builder_desc, parent);
01750 }
01751 
01753 enum BuildRailDepotWidgets {
01754   BRDW_DEPOT_NE,
01755   BRDW_DEPOT_SE,
01756   BRDW_DEPOT_SW,
01757   BRDW_DEPOT_NW,
01758 };
01759 
01760 struct BuildRailDepotWindow : public PickerWindowBase {
01761   BuildRailDepotWindow(const WindowDesc *desc, Window *parent) : PickerWindowBase(parent)
01762   {
01763     this->InitNested(desc, TRANSPORT_RAIL);
01764     this->LowerWidget(_build_depot_direction + BRDW_DEPOT_NE);
01765   }
01766 
01767   virtual void DrawWidget(const Rect &r, int widget) const
01768   {
01769     if (!IsInsideMM(widget, BRDW_DEPOT_NE, BRDW_DEPOT_NW + 1)) return;
01770 
01771     DrawTrainDepotSprite(r.left - 1, r.top, widget - BRDW_DEPOT_NE + DIAGDIR_NE, _cur_railtype);
01772   }
01773 
01774   virtual void OnClick(Point pt, int widget, int click_count)
01775   {
01776     switch (widget) {
01777       case BRDW_DEPOT_NE:
01778       case BRDW_DEPOT_SE:
01779       case BRDW_DEPOT_SW:
01780       case BRDW_DEPOT_NW:
01781         this->RaiseWidget(_build_depot_direction + BRDW_DEPOT_NE);
01782         _build_depot_direction = (DiagDirection)(widget - BRDW_DEPOT_NE);
01783         this->LowerWidget(_build_depot_direction + BRDW_DEPOT_NE);
01784         SndPlayFx(SND_15_BEEP);
01785         this->SetDirty();
01786         break;
01787     }
01788   }
01789 };
01790 
01792 static const NWidgetPart _nested_build_depot_widgets[] = {
01793   NWidget(NWID_HORIZONTAL),
01794     NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
01795     NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_BUILD_DEPOT_TRAIN_ORIENTATION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01796   EndContainer(),
01797   NWidget(WWT_PANEL, COLOUR_DARK_GREEN),
01798     NWidget(NWID_SPACER), SetMinimalSize(0, 3),
01799     NWidget(NWID_HORIZONTAL_LTR),
01800       NWidget(NWID_SPACER), SetMinimalSize(3, 0), SetFill(1, 0),
01801       NWidget(NWID_VERTICAL),
01802         NWidget(WWT_PANEL, COLOUR_GREY, BRDW_DEPOT_NW), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_TRAIN_ORIENTATION_TOOLTIP),
01803         EndContainer(),
01804         NWidget(NWID_SPACER), SetMinimalSize(0, 2),
01805         NWidget(WWT_PANEL, COLOUR_GREY, BRDW_DEPOT_SW), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_TRAIN_ORIENTATION_TOOLTIP),
01806         EndContainer(),
01807       EndContainer(),
01808       NWidget(NWID_SPACER), SetMinimalSize(2, 0),
01809       NWidget(NWID_VERTICAL),
01810         NWidget(WWT_PANEL, COLOUR_GREY, BRDW_DEPOT_NE), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_TRAIN_ORIENTATION_TOOLTIP),
01811         EndContainer(),
01812         NWidget(NWID_SPACER), SetMinimalSize(0, 2),
01813         NWidget(WWT_PANEL, COLOUR_GREY, BRDW_DEPOT_SE), SetMinimalSize(66, 50), SetDataTip(0x0, STR_BUILD_DEPOT_TRAIN_ORIENTATION_TOOLTIP),
01814         EndContainer(),
01815       EndContainer(),
01816       NWidget(NWID_SPACER), SetMinimalSize(3, 0), SetFill(1, 0),
01817     EndContainer(),
01818     NWidget(NWID_SPACER), SetMinimalSize(0, 3),
01819   EndContainer(),
01820 };
01821 
01822 static const WindowDesc _build_depot_desc(
01823   WDP_AUTO, 0, 0,
01824   WC_BUILD_DEPOT, WC_BUILD_TOOLBAR,
01825   WDF_CONSTRUCTION,
01826   _nested_build_depot_widgets, lengthof(_nested_build_depot_widgets)
01827 );
01828 
01829 static void ShowBuildTrainDepotPicker(Window *parent)
01830 {
01831   new BuildRailDepotWindow(&_build_depot_desc, parent);
01832 }
01833 
01835 enum BuildRailWaypointWidgets {
01836   BRWW_WAYPOINT_MATRIX,
01837   BRWW_WAYPOINT,
01838   BRWW_SCROLL,
01839 };
01840 
01841 struct BuildRailWaypointWindow : PickerWindowBase {
01842   BuildRailWaypointWindow(const WindowDesc *desc, Window *parent) : PickerWindowBase(parent)
01843   {
01844     this->CreateNestedTree(desc);
01845 
01846     NWidgetMatrix *matrix = this->GetWidget<NWidgetMatrix>(BRWW_WAYPOINT_MATRIX);
01847     matrix->SetScrollbar(this->GetScrollbar(BRWW_SCROLL));
01848 
01849     this->FinishInitNested(desc, TRANSPORT_RAIL);
01850 
01851     matrix->SetCount(_waypoint_count);
01852     matrix->SetClicked(_cur_waypoint_type);
01853   }
01854 
01855   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01856   {
01857     switch (widget) {
01858       case BRWW_WAYPOINT_MATRIX:
01859         /* Three blobs high and wide. */
01860         size->width  += resize->width  * 2;
01861         size->height += resize->height * 2;
01862 
01863         /* Resizing in X direction only at blob size, but at pixel level in Y. */
01864         resize->height = 1;
01865         break;
01866     }
01867   }
01868 
01869   virtual void DrawWidget(const Rect &r, int widget) const
01870   {
01871     switch (GB(widget, 0, 16)) {
01872       case BRWW_WAYPOINT: {
01873         byte type = GB(widget, 16, 16);
01874         const StationSpec *statspec = StationClass::Get(STAT_CLASS_WAYP, type);
01875         DrawWaypointSprite(r.left + TILE_PIXELS, r.bottom - TILE_PIXELS, type, _cur_railtype);
01876 
01877         if (statspec != NULL &&
01878             HasBit(statspec->callback_mask, CBM_STATION_AVAIL) &&
01879             GB(GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, NULL, INVALID_TILE), 0, 8) == 0) {
01880           GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_BLACK, FILLRECT_CHECKER);
01881         }
01882       }
01883     }
01884   }
01885 
01886   virtual void OnClick(Point pt, int widget, int click_count)
01887   {
01888     switch (GB(widget, 0, 16)) {
01889       case BRWW_WAYPOINT: {
01890         byte type = GB(widget, 16, 16);
01891         this->GetWidget<NWidgetMatrix>(BRWW_WAYPOINT_MATRIX)->SetClicked(_cur_waypoint_type);
01892 
01893         /* Check station availability callback */
01894         const StationSpec *statspec = StationClass::Get(STAT_CLASS_WAYP, type);
01895         if (statspec != NULL &&
01896             HasBit(statspec->callback_mask, CBM_STATION_AVAIL) &&
01897             GB(GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, NULL, INVALID_TILE), 0, 8) == 0) return;
01898 
01899         _cur_waypoint_type = type;
01900         this->GetWidget<NWidgetMatrix>(BRWW_WAYPOINT_MATRIX)->SetClicked(_cur_waypoint_type);
01901         SndPlayFx(SND_15_BEEP);
01902         this->SetDirty();
01903         break;
01904       }
01905     }
01906   }
01907 };
01908 
01910 static const NWidgetPart _nested_build_waypoint_widgets[] = {
01911   NWidget(NWID_HORIZONTAL),
01912     NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
01913     NWidget(WWT_CAPTION, COLOUR_DARK_GREEN), SetDataTip(STR_WAYPOINT_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01914   EndContainer(),
01915   NWidget(NWID_HORIZONTAL),
01916     NWidget(NWID_MATRIX, COLOUR_DARK_GREEN, BRWW_WAYPOINT_MATRIX), SetPIP(3, 2, 3), SetScrollbar(BRWW_SCROLL),
01917       NWidget(WWT_PANEL, COLOUR_DARK_GREEN, BRWW_WAYPOINT), SetMinimalSize(66, 60), SetDataTip(0x0, STR_WAYPOINT_GRAPHICS_TOOLTIP), EndContainer(),
01918     EndContainer(),
01919     NWidget(NWID_VERTICAL),
01920       NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, BRWW_SCROLL),
01921       NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
01922     EndContainer(),
01923   EndContainer(),
01924 };
01925 
01926 static const WindowDesc _build_waypoint_desc(
01927   WDP_AUTO, 0, 0,
01928   WC_BUILD_DEPOT, WC_BUILD_TOOLBAR,
01929   WDF_CONSTRUCTION,
01930   _nested_build_waypoint_widgets, lengthof(_nested_build_waypoint_widgets)
01931 );
01932 
01933 static void ShowBuildWaypointPicker(Window *parent)
01934 {
01935   new BuildRailWaypointWindow(&_build_waypoint_desc, parent);
01936 }
01937 
01941 void InitializeRailGui()
01942 {
01943   _build_depot_direction = DIAGDIR_NW;
01944 }
01945 
01950 void ReinitGuiAfterToggleElrail(bool disable)
01951 {
01952   extern RailType _last_built_railtype;
01953   if (disable && _last_built_railtype == RAILTYPE_ELECTRIC) {
01954     _last_built_railtype = _cur_railtype = RAILTYPE_RAIL;
01955     BuildRailToolbarWindow *w = dynamic_cast<BuildRailToolbarWindow *>(FindWindowById(WC_BUILD_TOOLBAR, TRANSPORT_RAIL));
01956     if (w != NULL) w->ModifyRailType(_cur_railtype);
01957   }
01958   MarkWholeScreenDirty();
01959 }
01960 
01962 static void SetDefaultRailGui()
01963 {
01964   if (_local_company == COMPANY_SPECTATOR || !Company::IsValidID(_local_company)) return;
01965 
01966   extern RailType _last_built_railtype;
01967   RailType rt = (RailType)(_settings_client.gui.default_rail_type + RAILTYPE_END);
01968   if (rt == DEF_RAILTYPE_MOST_USED) {
01969     /* Find the most used rail type */
01970     RailType count[RAILTYPE_END];
01971     memset(count, 0, sizeof(count));
01972     for (TileIndex t = 0; t < MapSize(); t++) {
01973       if (IsTileType(t, MP_RAILWAY) || IsLevelCrossingTile(t) || HasStationTileRail(t) ||
01974           (IsTileType(t, MP_TUNNELBRIDGE) && GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL)) {
01975         count[GetRailType(t)]++;
01976       }
01977     }
01978 
01979     rt = RAILTYPE_RAIL;
01980     for (RailType r = RAILTYPE_ELECTRIC; r < RAILTYPE_END; r++) {
01981       if (count[r] >= count[rt]) rt = r;
01982     }
01983 
01984     /* No rail, just get the first available one */
01985     if (count[rt] == 0) rt = DEF_RAILTYPE_FIRST;
01986   }
01987   switch (rt) {
01988     case DEF_RAILTYPE_FIRST:
01989       rt = RAILTYPE_RAIL;
01990       while (rt < RAILTYPE_END && !HasRailtypeAvail(_local_company, rt)) rt++;
01991       break;
01992 
01993     case DEF_RAILTYPE_LAST:
01994       rt = GetBestRailtype(_local_company);
01995       break;
01996 
01997     default:
01998       break;
01999   }
02000 
02001   _last_built_railtype = _cur_railtype = rt;
02002   BuildRailToolbarWindow *w = dynamic_cast<BuildRailToolbarWindow *>(FindWindowById(WC_BUILD_TOOLBAR, TRANSPORT_RAIL));
02003   if (w != NULL) w->ModifyRailType(_cur_railtype);
02004 }
02005 
02012 bool ResetSignalVariant(int32 p = 0)
02013 {
02014   SignalVariant new_variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
02015 
02016   if (new_variant != _cur_signal_variant) {
02017     Window *w = FindWindowById(WC_BUILD_SIGNAL, 0);
02018     if (w != NULL) {
02019       w->SetDirty();
02020       w->RaiseWidget((_cur_signal_variant == SIG_ELECTRIC ? BSW_ELECTRIC_NORM : BSW_SEMAPHORE_NORM) + _cur_signal_button);
02021     }
02022     _cur_signal_variant = new_variant;
02023   }
02024 
02025   return true;
02026 }
02027 
02032 void InitializeRailGUI()
02033 {
02034   SetDefaultRailGui();
02035 
02036   _convert_signal_button = false;
02037   _program_signal_button = false;
02038   _cur_signal_type   = _default_signal_type[_settings_client.gui.default_signal_type];
02039   _cur_signal_button =
02040     _cur_signal_type == SIGTYPE_PROG ? 4 :
02041     _cur_signal_type == SIGTYPE_SPEED ? 5 :
02042     _cur_signal_type == SIGTYPE_PBS ? 6 :
02043     _cur_signal_type == SIGTYPE_PBS_ONEWAY ? 7 : _cur_signal_type;
02044   ResetSignalVariant();
02045 }
02046 
02053 static bool CompareRailTypes(const DropDownListItem *first, const DropDownListItem *second)
02054 {
02055   return GetRailTypeInfo((RailType)first->result)->sorting_order < GetRailTypeInfo((RailType)second->result)->sorting_order;
02056 }
02057 
02063 DropDownList *GetRailTypeDropDownList(bool for_replacement)
02064 {
02065   RailTypes used_railtypes = RAILTYPES_NONE;
02066 
02067   /* Find the used railtypes. */
02068   Engine *e;
02069   FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
02070     if (!HasBit(e->info.climates, _settings_game.game_creation.landscape)) continue;
02071 
02072     used_railtypes |= GetRailTypeInfo(e->u.rail.railtype)->introduces_railtypes;
02073   }
02074 
02075   /* Get the date introduced railtypes as well. */
02076   used_railtypes = AddDateIntroducedRailTypes(used_railtypes, MAX_DAY);
02077 
02078   const Company *c = Company::Get(_local_company);
02079   DropDownList *list = new DropDownList();
02080   for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) {
02081     /* If it's not used ever, don't show it to the user. */
02082     if (!HasBit(used_railtypes, rt)) continue;
02083 
02084     const RailtypeInfo *rti = GetRailTypeInfo(rt);
02085     /* Skip rail type if it has no label */
02086     if (rti->label == 0) continue;
02087 
02088     StringID str = for_replacement ? rti->strings.replace_text : (rti->max_speed > 0 ? STR_TOOLBAR_RAILTYPE_VELOCITY : STR_JUST_STRING);
02089     DropDownListParamStringItem *item = new DropDownListParamStringItem(str, rt, !HasBit(c->avail_railtypes, rt));
02090     item->SetParam(0, rti->strings.menu_text);
02091     item->SetParam(1, rti->max_speed);
02092     list->push_back(item);
02093   }
02094   list->sort(CompareRailTypes);
02095   return list;
02096 }