# station_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 "debug.h"
    00014 #include "gui.h"
    00015 #include "textbuf_gui.h"
    00016 #include "company_func.h"
    00017 #include "command_func.h"
    00018 #include "vehicle_gui.h"
    00019 #include "cargotype.h"
    00020 #include "station_gui.h"
    00021 #include "strings_func.h"
    00022 #include "window_func.h"
    00023 #include "viewport_func.h"
    00024 #include "widgets/dropdown_func.h"
    00025 #include "station_base.h"
    00026 #include "waypoint_base.h"
    00027 #include "tilehighlight_func.h"
    00028 #include "company_base.h"
    00029 #include "sortlist_type.h"
    00030 #include "core/geometry_func.hpp"
    00031 #include "vehiclelist.h"
    00032 #include "town.h"
    00033
    00034 #include "widgets/station_widget.h"
    00035
    00036 #include "table/strings.h"
    00037
    00038 #include <set>
    00039 #include <vector>
    00040
    00051 int DrawStationCoverageAreaText(int left, int right, int top, StationCoverageType sct, int rad, bool supplies)
    00052 {
    00053   TileIndex tile = TileVirtXY(_thd.pos.x, _thd.pos.y);
    00054   uint32 cargo_mask = 0;
    00055   if (_thd.drawstyle == HT_RECT && tile < MapSize()) {
    00056     CargoArray cargoes;
    00057     if (supplies) {
    00058       cargoes = GetProductionAroundTiles(tile, _thd.size.x / TILE_SIZE, _thd.size.y / TILE_SIZE, rad);
    00059     } else {
    00060       cargoes = GetAcceptanceAroundTiles(tile, _thd.size.x / TILE_SIZE, _thd.size.y / TILE_SIZE, rad);
    00061     }
    00062
    00063     /* Convert cargo counts to a set of cargo bits, and draw the result. */
    00064     for (CargoID i = 0; i < NUM_CARGO; i++) {
    00065       switch (sct) {
    00066         case SCT_PASSENGERS_ONLY: if (!IsCargoInClass(i, CC_PASSENGERS)) continue; break;
    00067         case SCT_NON_PASSENGERS_ONLY: if (IsCargoInClass(i, CC_PASSENGERS)) continue; break;
    00068         case SCT_ALL: break;
    00069         default: NOT_REACHED();
    00070       }
    00071       if (cargoes[i] >= (supplies ? 1U : 8U)) SetBit(cargo_mask, i);
    00072     }
    00073   }
    00074   SetDParam(0, cargo_mask);
    00075   return DrawStringMultiLine(left, right, top, INT32_MAX, supplies ? STR_STATION_BUILD_SUPPLIES_CARGO : STR_STATION_BUILD_ACCEPTS_CARGO);
    00076 }
    00077
    00083 void CheckRedrawStationCoverage(const Window *w)
    00084 {
    00085   if (_thd.dirty & 1) {
    00086     _thd.dirty &= ~1;
    00087     w->SetDirty();
    00088   }
    00089 }
    00090
    00106 static void StationsWndShowStationRating(int left, int right, int y, CargoID type, uint amount, byte rating)
    00107 {
    00108   static const uint units_full  = 576;
    00109   static const uint rating_full = 224;
    00110
    00111   const CargoSpec *cs = CargoSpec::Get(type);
    00112   if (!cs->IsValid()) return;
    00113
    00114   int colour = cs->rating_colour;
    00115   TextColour tc = GetContrastColour(colour);
    00116   uint w = (minu(amount, units_full) + 5) / 36;
    00117
    00118   int height = GetCharacterHeight(FS_SMALL);
    00119
    00120   /* Draw total cargo (limited) on station (fits into 16 pixels) */
    00121   if (w != 0) GfxFillRect(left, y, left + w - 1, y + height, colour);
    00122
    00123   /* Draw a one pixel-wide bar of additional cargo meter, useful
    00124    * for stations with only a small amount (<=30) */
    00125   if (w == 0) {
    00126     uint rest = amount / 5;
    00127     if (rest != 0) {
    00128       w += left;
    00129       GfxFillRect(w, y + height - rest, w, y + height, colour);
    00130     }
    00131   }
    00132
    00133   DrawString(left + 1, right, y, cs->abbrev, tc);
    00134
    00135   /* Draw green/red ratings bar (fits into 14 pixels) */
    00136   y += height + 2;
    00137   GfxFillRect(left + 1, y, left + 14, y, PC_RED);
    00138   rating = minu(rating, rating_full) / 16;
    00139   if (rating != 0) GfxFillRect(left + 1, y, left + rating, y, PC_GREEN);
    00140 }
    00141
    00142 typedef GUIList<const Station*> GUIStationList;
    00143
    00147 class CompanyStationsWindow : public Window
    00148 {
    00149 protected:
    00150   /* Runtime saved values */
    00151   static Listing last_sorting;
    00152   static byte facilities;               // types of stations of interest
    00153   static bool include_empty;            // whether we should include stations without waiting cargo
    00154   static const uint32 cargo_filter_max;
    00155   static uint32 cargo_filter;           // bitmap of cargo types to include
    00156   static const Station *last_station;
    00157
    00158   /* Constants for sorting stations */
    00159   static const StringID sorter_names[];
    00160   static GUIStationList::SortFunction * const sorter_funcs[];
    00161
    00162   GUIStationList stations;
    00163   Scrollbar *vscroll;
    00164
    00170   void BuildStationsList(const Owner owner)
    00171   {
    00172     if (!this->stations.NeedRebuild()) return;
    00173
    00174     DEBUG(misc, 3, "Building station list for company %d", owner);
    00175
    00176     this->stations.Clear();
    00177
    00178     const Station *st;
    00179     FOR_ALL_STATIONS(st) {
    00180       if (st->owner == owner || (st->owner == OWNER_NONE && HasStationInUse(st->index, true, owner))) {
    00181         if (this->facilities & st->facilities) { // only stations with selected facilities
    00182           int num_waiting_cargo = 0;
    00183           for (CargoID j = 0; j < NUM_CARGO; j++) {
    00184             if (HasBit(st->goods[j].acceptance_pickup, GoodsEntry::GES_PICKUP)) {
    00185               num_waiting_cargo++; // count number of waiting cargo
    00186               if (HasBit(this->cargo_filter, j)) {
    00187                 *this->stations.Append() = st;
    00188                 break;
    00189               }
    00190             }
    00191           }
    00192           /* stations without waiting cargo */
    00193           if (num_waiting_cargo == 0 && this->include_empty) {
    00194             *this->stations.Append() = st;
    00195           }
    00196         }
    00197       }
    00198     }
    00199
    00200     this->stations.Compact();
    00201     this->stations.RebuildDone();
    00202
    00203     this->vscroll->SetCount(this->stations.Length()); // Update the scrollbar
    00204   }
    00205
    00207   static int CDECL StationNameSorter(const Station * const *a, const Station * const *b)
    00208   {
    00209     static char buf_cache[64];
    00210     char buf[64];
    00211
    00212     SetDParam(0, (*a)->index);
    00213     GetString(buf, STR_STATION_NAME, lastof(buf));
    00214
    00215     if (*b != last_station) {
    00216       last_station = *b;
    00217       SetDParam(0, (*b)->index);
    00218       GetString(buf_cache, STR_STATION_NAME, lastof(buf_cache));
    00219     }
    00220
    00221     return strcmp(buf, buf_cache);
    00222   }
    00223
    00225   static int CDECL StationTypeSorter(const Station * const *a, const Station * const *b)
    00226   {
    00227     return (*a)->facilities - (*b)->facilities;
    00228   }
    00229
    00231   static int CDECL StationWaitingSorter(const Station * const *a, const Station * const *b)
    00232   {
    00233     Money diff = 0;
    00234
    00235     CargoID j;
    00236     FOR_EACH_SET_CARGO_ID(j, cargo_filter) {
    00237       if (!(*a)->goods[j].cargo.Empty()) diff += GetTransportedGoodsIncome((*a)->goods[j].cargo.Count(), 20, 50, j);
    00238       if (!(*b)->goods[j].cargo.Empty()) diff -= GetTransportedGoodsIncome((*b)->goods[j].cargo.Count(), 20, 50, j);
    00239     }
    00240
    00241     return ClampToI32(diff);
    00242   }
    00243
    00245   static int CDECL StationRatingMaxSorter(const Station * const *a, const Station * const *b)
    00246   {
    00247     byte maxr1 = 0;
    00248     byte maxr2 = 0;
    00249
    00250     CargoID j;
    00251     FOR_EACH_SET_CARGO_ID(j, cargo_filter) {
    00252       if (HasBit((*a)->goods[j].acceptance_pickup, GoodsEntry::GES_PICKUP)) maxr1 = max(maxr1, (*a)->goods[j].rating);
    00253       if (HasBit((*b)->goods[j].acceptance_pickup, GoodsEntry::GES_PICKUP)) maxr2 = max(maxr2, (*b)->goods[j].rating);
    00254     }
    00255
    00256     return maxr1 - maxr2;
    00257   }
    00258
    00260   static int CDECL StationRatingMinSorter(const Station * const *a, const Station * const *b)
    00261   {
    00262     byte minr1 = 255;
    00263     byte minr2 = 255;
    00264
    00265     for (CargoID j = 0; j < NUM_CARGO; j++) {
    00266       if (!HasBit(cargo_filter, j)) continue;
    00267       if (HasBit((*a)->goods[j].acceptance_pickup, GoodsEntry::GES_PICKUP)) minr1 = min(minr1, (*a)->goods[j].rating);
    00268       if (HasBit((*b)->goods[j].acceptance_pickup, GoodsEntry::GES_PICKUP)) minr2 = min(minr2, (*b)->goods[j].rating);
    00269     }
    00270
    00271     return -(minr1 - minr2);
    00272   }
    00273
    00275   void SortStationsList()
    00276   {
    00277     if (!this->stations.Sort()) return;
    00278
    00279     /* Reset name sorter sort cache */
    00280     this->last_station = NULL;
    00281
    00282     /* Set the modified widget dirty */
    00283     this->SetWidgetDirty(WID_STL_LIST);
    00284   }
    00285
    00286 public:
    00287   CompanyStationsWindow(const WindowDesc *desc, WindowNumber window_number) : Window()
    00288   {
    00289     this->stations.SetListing(this->last_sorting);
    00290     this->stations.SetSortFuncs(this->sorter_funcs);
    00291     this->stations.ForceRebuild();
    00292     this->stations.NeedResort();
    00293     this->SortStationsList();
    00294
    00295     this->CreateNestedTree(desc);
    00296     this->vscroll = this->GetScrollbar(WID_STL_SCROLLBAR);
    00297     this->FinishInitNested(desc, window_number);
    00298     this->owner = (Owner)this->window_number;
    00299
    00300     const CargoSpec *cs;
    00301     FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
    00302       if (!HasBit(this->cargo_filter, cs->Index())) continue;
    00303       this->LowerWidget(WID_STL_CARGOSTART + index);
    00304     }
    00305
    00306     if (this->cargo_filter == this->cargo_filter_max) this->cargo_filter = _cargo_mask;
    00307
    00308     for (uint i = 0; i < 5; i++) {
    00309       if (HasBit(this->facilities, i)) this->LowerWidget(i + WID_STL_TRAIN);
    00310     }
    00311     this->SetWidgetLoweredState(WID_STL_NOCARGOWAITING, this->include_empty);
    00312
    00313     this->GetWidget<NWidgetCore>(WID_STL_SORTDROPBTN)->widget_data = this->sorter_names[this->stations.SortType()];
    00314   }
    00315
    00316   ~CompanyStationsWindow()
    00317   {
    00318     this->last_sorting = this->stations.GetListing();
    00319   }
    00320
    00321   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00322   {
    00323     switch (widget) {
    00324       case WID_STL_SORTBY: {
    00325         Dimension d = GetStringBoundingBox(this->GetWidget<NWidgetCore>(widget)->widget_data);
    00326         d.width += padding.width + WD_SORTBUTTON_ARROW_WIDTH * 2; // Doubled since the string is centred and it also looks better.
    00327         d.height += padding.height;
    00328         *size = maxdim(*size, d);
    00329         break;
    00330       }
    00331
    00332       case WID_STL_SORTDROPBTN: {
    00333         Dimension d = {0, 0};
    00334         for (int i = 0; this->sorter_names[i] != INVALID_STRING_ID; i++) {
    00335           d = maxdim(d, GetStringBoundingBox(this->sorter_names[i]));
    00336         }
    00337         d.width += padding.width;
    00338         d.height += padding.height;
    00339         *size = maxdim(*size, d);
    00340         break;
    00341       }
    00342
    00343       case WID_STL_LIST:
    00344         resize->height = FONT_HEIGHT_NORMAL;
    00345         size->height = WD_FRAMERECT_TOP + 5 * resize->height + WD_FRAMERECT_BOTTOM;
    00346         break;
    00347
    00348       case WID_STL_TRAIN:
    00349       case WID_STL_TRUCK:
    00350       case WID_STL_BUS:
    00351       case WID_STL_AIRPLANE:
    00352       case WID_STL_SHIP:
    00353         size->height = max<uint>(FONT_HEIGHT_SMALL, 10) + padding.height;
    00354         break;
    00355
    00356       case WID_STL_CARGOALL:
    00357       case WID_STL_FACILALL:
    00358       case WID_STL_NOCARGOWAITING: {
    00359         Dimension d = GetStringBoundingBox(widget == WID_STL_NOCARGOWAITING ? STR_ABBREV_NONE : STR_ABBREV_ALL);
    00360         d.width  += padding.width + 2;
    00361         d.height += padding.height;
    00362         *size = maxdim(*size, d);
    00363         break;
    00364       }
    00365
    00366       default:
    00367         if (widget >= WID_STL_CARGOSTART) {
    00368           Dimension d = GetStringBoundingBox(_sorted_cargo_specs[widget - WID_STL_CARGOSTART]->abbrev);
    00369           d.width  += padding.width + 2;
    00370           d.height += padding.height;
    00371           *size = maxdim(*size, d);
    00372         }
    00373         break;
    00374     }
    00375   }
    00376
    00377   virtual void OnPaint()
    00378   {
    00379     this->BuildStationsList((Owner)this->window_number);
    00380     this->SortStationsList();
    00381
    00382     this->DrawWidgets();
    00383   }
    00384
    00385   virtual void DrawWidget(const Rect &r, int widget) const
    00386   {
    00387     switch (widget) {
    00388       case WID_STL_SORTBY:
    00389         /* draw arrow pointing up/down for ascending/descending sorting */
    00390         this->DrawSortButtonState(WID_STL_SORTBY, this->stations.IsDescSortOrder() ? SBS_DOWN : SBS_UP);
    00391         break;
    00392
    00393       case WID_STL_LIST: {
    00394         bool rtl = _current_text_dir == TD_RTL;
    00395         int max = min(this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->stations.Length());
    00396         int y = r.top + WD_FRAMERECT_TOP;
    00397         for (int i = this->vscroll->GetPosition(); i < max; ++i) { // do until max number of stations of owner
    00398           const Station *st = this->stations[i];
    00399           assert(st->xy != INVALID_TILE);
    00400
    00401           /* Do not do the complex check HasStationInUse here, it may be even false
    00402            * when the order had been removed and the station list hasn't been removed yet */
    00403           assert(st->owner == owner || st->owner == OWNER_NONE);
    00404
    00405           SetDParam(0, st->index);
    00406           SetDParam(1, st->facilities);
    00407           int x = DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_STATION_LIST_STATION);
    00408           x += rtl ? -5 : 5;
    00409
    00410           /* show cargo waiting and station ratings */
    00411           for (uint j = 0; j < _sorted_standard_cargo_specs_size; j++) {
    00412             CargoID cid = _sorted_cargo_specs[j]->Index();
    00413             if (!st->goods[cid].cargo.Empty()) {
    00414               /* For RTL we work in exactly the opposite direction. So
    00415                * decrement the space needed first, then draw to the left
    00416                * instead of drawing to the left and then incrementing
    00417                * the space. */
    00418               if (rtl) {
    00419                 x -= 20;
    00420                 if (x < r.left + WD_FRAMERECT_LEFT) break;
    00421               }
    00422               StationsWndShowStationRating(x, x + 16, y, cid, st->goods[cid].cargo.Count(), st->goods[cid].rating);
    00423               if (!rtl) {
    00424                 x += 20;
    00425                 if (x > r.right - WD_FRAMERECT_RIGHT) break;
    00426               }
    00427             }
    00428           }
    00429           y += FONT_HEIGHT_NORMAL;
    00430         }
    00431
    00432         if (this->vscroll->GetCount() == 0) { // company has no stations
    00433           DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_STATION_LIST_NONE);
    00434           return;
    00435         }
    00436         break;
    00437       }
    00438
    00439       case WID_STL_NOCARGOWAITING: {
    00440         int cg_ofst = this->IsWidgetLowered(widget) ? 2 : 1;
    00441         DrawString(r.left + cg_ofst, r.right + cg_ofst, r.top + cg_ofst, STR_ABBREV_NONE, TC_BLACK, SA_HOR_CENTER);
    00442         break;
    00443       }
    00444
    00445       case WID_STL_CARGOALL: {
    00446         int cg_ofst = this->IsWidgetLowered(widget) ? 2 : 1;
    00447         DrawString(r.left + cg_ofst, r.right + cg_ofst, r.top + cg_ofst, STR_ABBREV_ALL, TC_BLACK, SA_HOR_CENTER);
    00448         break;
    00449       }
    00450
    00451       case WID_STL_FACILALL: {
    00452         int cg_ofst = this->IsWidgetLowered(widget) ? 2 : 1;
    00453         DrawString(r.left + cg_ofst, r.right + cg_ofst, r.top + cg_ofst, STR_ABBREV_ALL, TC_BLACK);
    00454         break;
    00455       }
    00456
    00457       default:
    00458         if (widget >= WID_STL_CARGOSTART) {
    00459           const CargoSpec *cs = _sorted_cargo_specs[widget - WID_STL_CARGOSTART];
    00460           int cg_ofst = HasBit(this->cargo_filter, cs->Index()) ? 2 : 1;
    00461           GfxFillRect(r.left + cg_ofst, r.top + cg_ofst, r.right - 2 + cg_ofst, r.bottom - 2 + cg_ofst, cs->rating_colour);
    00462           TextColour tc = GetContrastColour(cs->rating_colour);
    00463           DrawString(r.left + cg_ofst, r.right + cg_ofst, r.top + cg_ofst, cs->abbrev, tc, SA_HOR_CENTER);
    00464         }
    00465         break;
    00466     }
    00467   }
    00468
    00469   virtual void SetStringParameters(int widget) const
    00470   {
    00471     if (widget == WID_STL_CAPTION) {
    00472       SetDParam(0, this->window_number);
    00473       SetDParam(1, this->vscroll->GetCount());
    00474     }
    00475   }
    00476
    00477   virtual void OnClick(Point pt, int widget, int click_count)
    00478   {
    00479     switch (widget) {
    00480       case WID_STL_LIST: {
    00481         uint id_v = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_STL_LIST, 0, FONT_HEIGHT_NORMAL);
    00482         if (id_v >= this->stations.Length()) return; // click out of list bound
    00483
    00484         const Station *st = this->stations[id_v];
    00485         /* do not check HasStationInUse - it is slow and may be invalid */
    00486         assert(st->owner == (Owner)this->window_number || st->owner == OWNER_NONE);
    00487
    00488         if (_ctrl_pressed) {
    00489           ShowExtraViewPortWindow(st->xy);
    00490         } else {
    00491           ScrollMainWindowToTile(st->xy);
    00492         }
    00493         break;
    00494       }
    00495
    00496       case WID_STL_TRAIN:
    00497       case WID_STL_TRUCK:
    00498       case WID_STL_BUS:
    00499       case WID_STL_AIRPLANE:
    00500       case WID_STL_SHIP:
    00501         if (_ctrl_pressed) {
    00502           ToggleBit(this->facilities, widget - WID_STL_TRAIN);
    00503           this->ToggleWidgetLoweredState(widget);
    00504         } else {
    00505           uint i;
    00506           FOR_EACH_SET_BIT(i, this->facilities) {
    00507             this->RaiseWidget(i + WID_STL_TRAIN);
    00508           }
    00509           this->facilities = 1 << (widget - WID_STL_TRAIN);
    00510           this->LowerWidget(widget);
    00511         }
    00512         this->stations.ForceRebuild();
    00513         this->SetDirty();
    00514         break;
    00515
    00516       case WID_STL_FACILALL:
    00517         for (uint i = WID_STL_TRAIN; i <= WID_STL_SHIP; i++) {
    00518           this->LowerWidget(i);
    00519         }
    00520
    00521         this->facilities = FACIL_TRAIN | FACIL_TRUCK_STOP | FACIL_BUS_STOP | FACIL_AIRPORT | FACIL_DOCK;
    00522         this->stations.ForceRebuild();
    00523         this->SetDirty();
    00524         break;
    00525
    00526       case WID_STL_CARGOALL: {
    00527         for (uint i = 0; i < _sorted_standard_cargo_specs_size; i++) {
    00528           this->LowerWidget(WID_STL_CARGOSTART + i);
    00529         }
    00530         this->LowerWidget(WID_STL_NOCARGOWAITING);
    00531
    00532         this->cargo_filter = _cargo_mask;
    00533         this->include_empty = true;
    00534         this->stations.ForceRebuild();
    00535         this->SetDirty();
    00536         break;
    00537       }
    00538
    00539       case WID_STL_SORTBY: // flip sorting method asc/desc
    00540         this->stations.ToggleSortOrder();
    00541         this->SetDirty();
    00542         break;
    00543
    00544       case WID_STL_SORTDROPBTN: // select sorting criteria dropdown menu
    00545         ShowDropDownMenu(this, this->sorter_names, this->stations.SortType(), WID_STL_SORTDROPBTN, 0, 0);
    00546         break;
    00547
    00548       case WID_STL_NOCARGOWAITING:
    00549         if (_ctrl_pressed) {
    00550           this->include_empty = !this->include_empty;
    00551           this->ToggleWidgetLoweredState(WID_STL_NOCARGOWAITING);
    00552         } else {
    00553           for (uint i = 0; i < _sorted_standard_cargo_specs_size; i++) {
    00554             this->RaiseWidget(WID_STL_CARGOSTART + i);
    00555           }
    00556
    00557           this->cargo_filter = 0;
    00558           this->include_empty = true;
    00559
    00560           this->LowerWidget(WID_STL_NOCARGOWAITING);
    00561         }
    00562         this->stations.ForceRebuild();
    00563         this->SetDirty();
    00564         break;
    00565
    00566       default:
    00567         if (widget >= WID_STL_CARGOSTART) { // change cargo_filter
    00568           /* Determine the selected cargo type */
    00569           const CargoSpec *cs = _sorted_cargo_specs[widget - WID_STL_CARGOSTART];
    00570
    00571           if (_ctrl_pressed) {
    00572             ToggleBit(this->cargo_filter, cs->Index());
    00573             this->ToggleWidgetLoweredState(widget);
    00574           } else {
    00575             for (uint i = 0; i < _sorted_standard_cargo_specs_size; i++) {
    00576               this->RaiseWidget(WID_STL_CARGOSTART + i);
    00577             }
    00578             this->RaiseWidget(WID_STL_NOCARGOWAITING);
    00579
    00580             this->cargo_filter = 0;
    00581             this->include_empty = false;
    00582
    00583             SetBit(this->cargo_filter, cs->Index());
    00584             this->LowerWidget(widget);
    00585           }
    00586           this->stations.ForceRebuild();
    00587           this->SetDirty();
    00588         }
    00589         break;
    00590     }
    00591   }
    00592
    00593   virtual void OnDropdownSelect(int widget, int index)
    00594   {
    00595     if (this->stations.SortType() != index) {
    00596       this->stations.SetSortType(index);
    00597
    00598       /* Display the current sort variant */
    00599       this->GetWidget<NWidgetCore>(WID_STL_SORTDROPBTN)->widget_data = this->sorter_names[this->stations.SortType()];
    00600
    00601       this->SetDirty();
    00602     }
    00603   }
    00604
    00605   virtual void OnTick()
    00606   {
    00607     if (_pause_mode != PM_UNPAUSED) return;
    00608     if (this->stations.NeedResort()) {
    00609       DEBUG(misc, 3, "Periodic rebuild station list company %d", this->window_number);
    00610       this->SetDirty();
    00611     }
    00612   }
    00613
    00614   virtual void OnResize()
    00615   {
    00616     this->vscroll->SetCapacityFromWidget(this, WID_STL_LIST, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM);
    00617   }
    00618
    00624   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    00625   {
    00626     if (data == 0) {
    00627       /* This needs to be done in command-scope to enforce rebuilding before resorting invalid data */
    00628       this->stations.ForceRebuild();
    00629     } else {
    00630       this->stations.ForceResort();
    00631     }
    00632   }
    00633 };
    00634
    00635 Listing CompanyStationsWindow::last_sorting = {false, 0};
    00636 byte CompanyStationsWindow::facilities = FACIL_TRAIN | FACIL_TRUCK_STOP | FACIL_BUS_STOP | FACIL_AIRPORT | FACIL_DOCK;
    00637 bool CompanyStationsWindow::include_empty = true;
    00638 const uint32 CompanyStationsWindow::cargo_filter_max = UINT32_MAX;
    00639 uint32 CompanyStationsWindow::cargo_filter = UINT32_MAX;
    00640 const Station *CompanyStationsWindow::last_station = NULL;
    00641
    00642 /* Availible station sorting functions */
    00643 GUIStationList::SortFunction * const CompanyStationsWindow::sorter_funcs[] = {
    00644   &StationNameSorter,
    00645   &StationTypeSorter,
    00646   &StationWaitingSorter,
    00647   &StationRatingMaxSorter,
    00648   &StationRatingMinSorter
    00649 };
    00650
    00651 /* Names of the sorting functions */
    00652 const StringID CompanyStationsWindow::sorter_names[] = {
    00653   STR_SORT_BY_NAME,
    00654   STR_SORT_BY_FACILITY,
    00655   STR_SORT_BY_WAITING,
    00656   STR_SORT_BY_RATING_MAX,
    00657   STR_SORT_BY_RATING_MIN,
    00658   INVALID_STRING_ID
    00659 };
    00660
    00666 static NWidgetBase *CargoWidgets(int *biggest_index)
    00667 {
    00668   NWidgetHorizontal *container = new NWidgetHorizontal();
    00669
    00670   for (uint i = 0; i < _sorted_standard_cargo_specs_size; i++) {
    00671     NWidgetBackground *panel = new NWidgetBackground(WWT_PANEL, COLOUR_GREY, WID_STL_CARGOSTART + i);
    00672     panel->SetMinimalSize(14, 11);
    00673     panel->SetResize(0, 0);
    00674     panel->SetFill(0, 1);
    00675     panel->SetDataTip(0, STR_STATION_LIST_USE_CTRL_TO_SELECT_MORE);
    00676     container->Add(panel);
    00677   }
    00678   *biggest_index = WID_STL_CARGOSTART + _sorted_standard_cargo_specs_size;
    00679   return container;
    00680 }
    00681
    00682 static const NWidgetPart _nested_company_stations_widgets[] = {
    00683   NWidget(NWID_HORIZONTAL),
    00684     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00685     NWidget(WWT_CAPTION, COLOUR_GREY, WID_STL_CAPTION), SetDataTip(STR_STATION_LIST_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00686     NWidget(WWT_SHADEBOX, COLOUR_GREY),
    00687     NWidget(WWT_STICKYBOX, COLOUR_GREY),
    00688   EndContainer(),
    00689   NWidget(NWID_HORIZONTAL),
    00690     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_STL_TRAIN), SetMinimalSize(14, 11), SetDataTip(STR_TRAIN, STR_STATION_LIST_USE_CTRL_TO_SELECT_MORE), SetFill(0, 1),
    00691     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_STL_TRUCK), SetMinimalSize(14, 11), SetDataTip(STR_LORRY, STR_STATION_LIST_USE_CTRL_TO_SELECT_MORE), SetFill(0, 1),
    00692     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_STL_BUS), SetMinimalSize(14, 11), SetDataTip(STR_BUS, STR_STATION_LIST_USE_CTRL_TO_SELECT_MORE), SetFill(0, 1),
    00693     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_STL_SHIP), SetMinimalSize(14, 11), SetDataTip(STR_SHIP, STR_STATION_LIST_USE_CTRL_TO_SELECT_MORE), SetFill(0, 1),
    00694     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_STL_AIRPLANE), SetMinimalSize(14, 11), SetDataTip(STR_PLANE, STR_STATION_LIST_USE_CTRL_TO_SELECT_MORE), SetFill(0, 1),
    00695     NWidget(WWT_PUSHBTN, COLOUR_GREY, WID_STL_FACILALL), SetMinimalSize(14, 11), SetDataTip(0x0, STR_STATION_LIST_SELECT_ALL_FACILITIES), SetFill(0, 1),
    00696     NWidget(WWT_PANEL, COLOUR_GREY), SetMinimalSize(5, 11), SetFill(0, 1), EndContainer(),
    00697     NWidgetFunction(CargoWidgets),
    00698     NWidget(WWT_PANEL, COLOUR_GREY, WID_STL_NOCARGOWAITING), SetMinimalSize(14, 11), SetDataTip(0x0, STR_STATION_LIST_NO_WAITING_CARGO), SetFill(0, 1), EndContainer(),
    00699     NWidget(WWT_PUSHBTN, COLOUR_GREY, WID_STL_CARGOALL), SetMinimalSize(14, 11), SetDataTip(0x0, STR_STATION_LIST_SELECT_ALL_TYPES), SetFill(0, 1),
    00700     NWidget(WWT_PANEL, COLOUR_GREY), SetDataTip(0x0, STR_NULL), SetResize(1, 0), SetFill(1, 1), EndContainer(),
    00701   EndContainer(),
    00702   NWidget(NWID_HORIZONTAL),
    00703     NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_STL_SORTBY), SetMinimalSize(81, 12), SetDataTip(STR_BUTTON_SORT_BY, STR_TOOLTIP_SORT_ORDER),
    00704     NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_STL_SORTDROPBTN), SetMinimalSize(163, 12), SetDataTip(STR_SORT_BY_NAME, STR_TOOLTIP_SORT_CRITERIA), // widget_data gets overwritten.
    00705     NWidget(WWT_PANEL, COLOUR_GREY), SetDataTip(0x0, STR_NULL), SetResize(1, 0), SetFill(1, 1), EndContainer(),
    00706   EndContainer(),
    00707   NWidget(NWID_HORIZONTAL),
    00708     NWidget(WWT_PANEL, COLOUR_GREY, WID_STL_LIST), SetMinimalSize(346, 125), SetResize(1, 10), SetDataTip(0x0, STR_STATION_LIST_TOOLTIP), SetScrollbar(WID_STL_SCROLLBAR), EndContainer(),
    00709     NWidget(NWID_VERTICAL),
    00710       NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_STL_SCROLLBAR),
    00711       NWidget(WWT_RESIZEBOX, COLOUR_GREY),
    00712     EndContainer(),
    00713   EndContainer(),
    00714 };
    00715
    00716 static const WindowDesc _company_stations_desc(
    00717   WDP_AUTO, 358, 162,
    00718   WC_STATION_LIST, WC_NONE,
    00719   0,
    00720   _nested_company_stations_widgets, lengthof(_nested_company_stations_widgets)
    00721 );
    00722
    00728 void ShowCompanyStations(CompanyID company)
    00729 {
    00730   if (!Company::IsValidID(company)) return;
    00731
    00732   AllocateWindowDescFront<CompanyStationsWindow>(&_company_stations_desc, company);
    00733 }
    00734
    00735 static const NWidgetPart _nested_station_view_widgets[] = {
    00736   NWidget(NWID_HORIZONTAL),
    00737     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00738     NWidget(WWT_CAPTION, COLOUR_GREY, WID_SV_CAPTION), SetDataTip(STR_STATION_VIEW_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00739     NWidget(WWT_SHADEBOX, COLOUR_GREY),
    00740     NWidget(WWT_STICKYBOX, COLOUR_GREY),
    00741   EndContainer(),
    00742   NWidget(NWID_HORIZONTAL),
    00743     NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_SORT_ORDER), SetMinimalSize(81, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_SORT_BY, STR_TOOLTIP_SORT_ORDER),
    00744     NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_SV_SORT_BY), SetMinimalSize(168, 12), SetResize(1, 0), SetFill(0, 1), SetDataTip(0x0, STR_TOOLTIP_SORT_CRITERIA),
    00745   EndContainer(),
    00746   NWidget(NWID_HORIZONTAL),
    00747     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_SV_GROUP), SetMinimalSize(81, 12), SetFill(1, 1), SetDataTip(STR_STATION_VIEW_GROUP, 0x0),
    00748     NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_SV_GROUP_BY), SetMinimalSize(168, 12), SetResize(1, 0), SetFill(0, 1), SetDataTip(0x0, STR_TOOLTIP_GROUP_ORDER),
    00749   EndContainer(),
    00750   NWidget(NWID_HORIZONTAL),
    00751     NWidget(WWT_PANEL, COLOUR_GREY, WID_SV_WAITING), SetMinimalSize(237, 44), SetResize(1, 10), SetScrollbar(WID_SV_SCROLLBAR), EndContainer(),
    00752     NWidget(NWID_VSCROLLBAR, COLOUR_GREY, WID_SV_SCROLLBAR),
    00753   EndContainer(),
    00754   NWidget(WWT_PANEL, COLOUR_GREY, WID_SV_ACCEPT_RATING_LIST), SetMinimalSize(249, 23), SetResize(1, 0), EndContainer(),
    00755   NWidget(NWID_HORIZONTAL),
    00756     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
    00757       NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_LOCATION), SetMinimalSize(45, 12), SetResize(1, 0), SetFill(1, 1),
    00758           SetDataTip(STR_BUTTON_LOCATION, STR_STATION_VIEW_CENTER_TOOLTIP),
    00759       NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_ACCEPTS_RATINGS), SetMinimalSize(46, 12), SetResize(1, 0), SetFill(1, 1),
    00760           SetDataTip(STR_STATION_VIEW_RATINGS_BUTTON, STR_STATION_VIEW_RATINGS_TOOLTIP),
    00761       NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_RENAME), SetMinimalSize(45, 12), SetResize(1, 0), SetFill(1, 1),
    00762           SetDataTip(STR_BUTTON_RENAME, STR_STATION_VIEW_RENAME_TOOLTIP),
    00763     EndContainer(),
    00764     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_SV_CLOSE_AIRPORT), SetMinimalSize(45, 12), SetResize(1, 0), SetFill(1, 1),
    00765         SetDataTip(STR_STATION_VIEW_CLOSE_AIRPORT, STR_STATION_VIEW_CLOSE_AIRPORT_TOOLTIP),
    00766     NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_TRAINS), SetMinimalSize(14, 12), SetFill(0, 1), SetDataTip(STR_TRAIN, STR_STATION_VIEW_SCHEDULED_TRAINS_TOOLTIP),
    00767     NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_ROADVEHS), SetMinimalSize(14, 12), SetFill(0, 1), SetDataTip(STR_LORRY, STR_STATION_VIEW_SCHEDULED_ROAD_VEHICLES_TOOLTIP),
    00768     NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_SHIPS), SetMinimalSize(14, 12), SetFill(0, 1), SetDataTip(STR_SHIP, STR_STATION_VIEW_SCHEDULED_SHIPS_TOOLTIP),
    00769     NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_SV_PLANES),  SetMinimalSize(14, 12), SetFill(0, 1), SetDataTip(STR_PLANE, STR_STATION_VIEW_SCHEDULED_AIRCRAFT_TOOLTIP),
    00770     NWidget(WWT_RESIZEBOX, COLOUR_GREY),
    00771   EndContainer(),
    00772 };
    00773
    00784 static void DrawCargoIcons(CargoID i, uint waiting, int left, int right, int y)
    00785 {
    00786   uint num = min((waiting + 5) / 10, (right - left) / 10); // maximum is width / 10 icons so it won't overflow
    00787   if (num == 0) return;
    00788
    00789   SpriteID sprite = CargoSpec::Get(i)->GetCargoIcon();
    00790
    00791   int x = _current_text_dir == TD_RTL ? left : right - num * 10;
    00792   do {
    00793     DrawSprite(sprite, PAL_NONE, x, y);
    00794     x += 10;
    00795   } while (--num);
    00796 }
    00797
    00798 enum SortOrder {
    00799   SO_DESCENDING,
    00800   SO_ASCENDING
    00801 };
    00802
    00803 class CargoDataEntry;
    00804
    00805 enum CargoSortType {
    00806   ST_AS_GROUPING,
    00807   ST_COUNT,
    00808   ST_STATION_STRING,
    00809   ST_STATION_ID,
    00810   ST_CARGO_ID,
    00811 };
    00812
    00813 class CargoSorter {
    00814 public:
    00815   CargoSorter(CargoSortType t = ST_STATION_ID, SortOrder o = SO_ASCENDING) : type(t), order(o) {}
    00816   CargoSortType GetSortType() {return this->type;}
    00817   bool operator()(const CargoDataEntry *cd1, const CargoDataEntry *cd2) const;
    00818
    00819 private:
    00820   CargoSortType type;
    00821   SortOrder order;
    00822
    00823   template<class Tid>
    00824   bool SortId(Tid st1, Tid st2) const;
    00825   bool SortCount(const CargoDataEntry *cd1, const CargoDataEntry *cd2) const;
    00826   bool SortStation (StationID st1, StationID st2) const;
    00827 };
    00828
    00829 typedef std::set<CargoDataEntry *, CargoSorter> CargoDataSet;
    00830
    00836 class CargoDataEntry {
    00837 public:
    00838   CargoDataEntry();
    00839   ~CargoDataEntry();
    00840
    00846   CargoDataEntry *InsertOrRetrieve(StationID station)
    00847   {
    00848     return this->InsertOrRetrieve<StationID>(station);
    00849   }
    00850
    00856   CargoDataEntry *InsertOrRetrieve(CargoID cargo)
    00857   {
    00858     return this->InsertOrRetrieve<CargoID>(cargo);
    00859   }
    00860
    00861   void Update(uint count);
    00862
    00867   void Remove(StationID station)
    00868   {
    00869     CargoDataEntry t(station);
    00870     this->Remove(&t);
    00871   }
    00872
    00877   void Remove(CargoID cargo)
    00878   {
    00879     CargoDataEntry t(cargo);
    00880     this->Remove(&t);
    00881   }
    00882
    00888   CargoDataEntry *Retrieve(StationID station) const
    00889   {
    00890     CargoDataEntry t(station);
    00891     return this->Retrieve(this->children->find(&t));
    00892   }
    00893
    00899   CargoDataEntry *Retrieve(CargoID cargo) const
    00900   {
    00901     CargoDataEntry t(cargo);
    00902     return this->Retrieve(this->children->find(&t));
    00903   }
    00904
    00905   void Resort(CargoSortType type, SortOrder order);
    00906
    00910   StationID GetStation() const { return this->station; }
    00911
    00915   CargoID GetCargo() const { return this->cargo; }
    00916
    00920   uint GetCount() const { return this->count; }
    00921
    00925   CargoDataEntry *GetParent() const { return this->parent; }
    00926
    00930   uint GetNumChildren() const { return this->num_children; }
    00931
    00935   CargoDataSet::iterator Begin() const { return this->children->begin(); }
    00936
    00940   CargoDataSet::iterator End() const { return this->children->end(); }
    00941
    00942   void Clear();
    00943 private:
    00944
    00945   CargoDataEntry(StationID st, uint c, CargoDataEntry *p);
    00946   CargoDataEntry(CargoID car, uint c, CargoDataEntry *p);
    00947   CargoDataEntry(StationID st);
    00948   CargoDataEntry(CargoID car);
    00949
    00950   CargoDataEntry *Retrieve(CargoDataSet::iterator i) const;
    00951
    00952   template<class Tid>
    00953   CargoDataEntry *InsertOrRetrieve(Tid s);
    00954
    00955   void Remove(CargoDataEntry *comp);
    00956   void IncrementSize();
    00957
    00958   CargoDataEntry *parent;
    00959   const union {
    00960     StationID station;
    00961     struct {
    00962       CargoID cargo;
    00963       bool transfers;
    00964     };
    00965   };
    00966   uint num_children;
    00967   uint count;
    00968   CargoDataSet *children;
    00969 };
    00970
    00971 CargoDataEntry::CargoDataEntry() :
    00972   parent(NULL),
    00973   station(INVALID_STATION),
    00974   num_children(0),
    00975   count(0),
    00976   children(new CargoDataSet(CargoSorter(ST_CARGO_ID)))
    00977 {}
    00978
    00979 CargoDataEntry::CargoDataEntry(CargoID cargo, uint count, CargoDataEntry *parent) :
    00980   parent(parent),
    00981   cargo(cargo),
    00982   num_children(0),
    00983   count(count),
    00984   children(new CargoDataSet)
    00985 {}
    00986
    00987 CargoDataEntry::CargoDataEntry(StationID station, uint count, CargoDataEntry *parent) :
    00988   parent(parent),
    00989   station(station),
    00990   num_children(0),
    00991   count(count),
    00992   children(new CargoDataSet)
    00993 {}
    00994
    00995 CargoDataEntry::CargoDataEntry(StationID station) :
    00996   parent(NULL),
    00997   station(station),
    00998   num_children(0),
    00999   count(0),
    01000   children(NULL)
    01001 {}
    01002
    01003 CargoDataEntry::CargoDataEntry(CargoID cargo) :
    01004   parent(NULL),
    01005   cargo(cargo),
    01006   num_children(0),
    01007   count(0),
    01008   children(NULL)
    01009 {}
    01010
    01011 CargoDataEntry::~CargoDataEntry()
    01012 {
    01013   this->Clear();
    01014   delete this->children;
    01015 }
    01016
    01020 void CargoDataEntry::Clear()
    01021 {
    01022   if (this->children != NULL) {
    01023     for (CargoDataSet::iterator i = this->children->begin(); i != this->children->end(); ++i) {
    01024       assert(*i != this);
    01025       delete *i;
    01026     }
    01027     this->children->clear();
    01028   }
    01029   if (this->parent != NULL) this->parent->count -= this->count;
    01030   this->count = 0;
    01031   this->num_children = 0;
    01032 }
    01033
    01040 void CargoDataEntry::Remove(CargoDataEntry *child)
    01041 {
    01042   CargoDataSet::iterator i = this->children->find(child);
    01043   if (i != this->children->end()) {
    01044     delete *i;
    01045     this->children->erase(i);
    01046   }
    01047 }
    01048
    01055 template<class Tid>
    01056 CargoDataEntry *CargoDataEntry::InsertOrRetrieve(Tid child_id)
    01057 {
    01058   CargoDataEntry tmp(child_id);
    01059   CargoDataSet::iterator i = this->children->find(&tmp);
    01060   if (i == this->children->end()) {
    01061     IncrementSize();
    01062     return *(this->children->insert(new CargoDataEntry(child_id, 0, this)).first);
    01063   } else {
    01064     CargoDataEntry *ret = *i;
    01065     assert(this->children->value_comp().GetSortType() != ST_COUNT);
    01066     return ret;
    01067   }
    01068 }
    01069
    01075 void CargoDataEntry::Update(uint count)
    01076 {
    01077   this->count += count;
    01078   if (this->parent != NULL) this->parent->Update(count);
    01079 }
    01080
    01084 void CargoDataEntry::IncrementSize()
    01085 {
    01086    ++this->num_children;
    01087    if (this->parent != NULL) this->parent->IncrementSize();
    01088 }
    01089
    01090 void CargoDataEntry::Resort(CargoSortType type, SortOrder order)
    01091 {
    01092   CargoDataSet *new_subs = new CargoDataSet(this->children->begin(), this->children->end(), CargoSorter(type, order));
    01093   delete this->children;
    01094   this->children = new_subs;
    01095 }
    01096
    01097 CargoDataEntry *CargoDataEntry::Retrieve(CargoDataSet::iterator i) const
    01098 {
    01099   if (i == this->children->end()) {
    01100     return NULL;
    01101   } else {
    01102     assert(this->children->value_comp().GetSortType() != ST_COUNT);
    01103     return *i;
    01104   }
    01105 }
    01106
    01107 bool CargoSorter::operator()(const CargoDataEntry *cd1, const CargoDataEntry *cd2) const
    01108 {
    01109   switch (this->type) {
    01110     case ST_STATION_ID:
    01111       return this->SortId<StationID>(cd1->GetStation(), cd2->GetStation());
    01112     case ST_CARGO_ID:
    01113       return this->SortId<CargoID>(cd1->GetCargo(), cd2->GetCargo());
    01114     case ST_COUNT:
    01115       return this->SortCount(cd1, cd2);
    01116     case ST_STATION_STRING:
    01117       return this->SortStation(cd1->GetStation(), cd2->GetStation());
    01118     default:
    01119       NOT_REACHED();
    01120   }
    01121 }
    01122
    01123 template<class Tid>
    01124 bool CargoSorter::SortId(Tid st1, Tid st2) const
    01125 {
    01126   return (this->order == SO_ASCENDING) ? st1 < st2 : st2 < st1;
    01127 }
    01128
    01129 bool CargoSorter::SortCount(const CargoDataEntry *cd1, const CargoDataEntry *cd2) const
    01130 {
    01131   uint c1 = cd1->GetCount();
    01132   uint c2 = cd2->GetCount();
    01133   if (c1 == c2) {
    01134     return this->SortStation(cd1->GetStation(), cd2->GetStation());
    01135   } else if (this->order == SO_ASCENDING) {
    01136     return c1 < c2;
    01137   } else {
    01138     return c2 < c1;
    01139   }
    01140 }
    01141
    01142 bool CargoSorter::SortStation(StationID st1, StationID st2) const
    01143 {
    01144   static char buf1[MAX_LENGTH_STATION_NAME_CHARS];
    01145   static char buf2[MAX_LENGTH_STATION_NAME_CHARS];
    01146
    01147   if (!Station::IsValidID(st1)) {
    01148     return Station::IsValidID(st2) ? this->order == SO_ASCENDING : this->SortId(st1, st2);
    01149   } else if (!Station::IsValidID(st2)) {
    01150     return order == SO_DESCENDING;
    01151   }
    01152
    01153   SetDParam(0, st1);
    01154   GetString(buf1, STR_STATION_NAME, lastof(buf1));
    01155   SetDParam(0, st2);
    01156   GetString(buf2, STR_STATION_NAME, lastof(buf2));
    01157
    01158   int res = strcmp(buf1, buf2);
    01159   if (res == 0) {
    01160     return this->SortId(st1, st2);
    01161   } else {
    01162     return (this->order == SO_ASCENDING) ? res < 0 : res > 0;
    01163   }
    01164 }
    01165
    01169 struct StationViewWindow : public Window {
    01173   struct RowDisplay {
    01174     RowDisplay(CargoDataEntry *f, StationID n) : filter(f), next_station(n) {}
    01175     RowDisplay(CargoDataEntry *f, CargoID n) : filter(f), next_cargo(n) {}
    01176
    01180     CargoDataEntry *filter;
    01181     union {
    01185       StationID next_station;
    01186
    01190       CargoID next_cargo;
    01191     };
    01192   };
    01193
    01194   typedef std::vector<RowDisplay> CargoDataVector;
    01195
    01196   static const int NUM_COLUMNS = 4;
    01197
    01201   enum Invalidation {
    01202     INV_FLOWS = 0x100,
    01203     INV_CARGO = 0x200
    01204   };
    01205
    01209   enum Grouping {
    01210     GR_SOURCE,
    01211     GR_NEXT,
    01212     GR_DESTINATION,
    01213     GR_CARGO,
    01214   };
    01215
    01219   enum Mode {
    01220     MODE_WAITING,
    01221     MODE_PLANNED
    01222   };
    01223
    01224   uint expand_shrink_width;
    01225   int rating_lines;
    01226   int accepts_lines;
    01227   Scrollbar *vscroll;
    01228
    01230   enum AcceptListHeight {
    01231     ALH_RATING  = 13,
    01232     ALH_ACCEPTS = 3,
    01233   };
    01234
    01235   static const StringID _sort_names[];
    01236   static const StringID _group_names[];
    01237
    01244   CargoSortType sortings[NUM_COLUMNS];
    01245
    01247   SortOrder sort_orders[NUM_COLUMNS];
    01248
    01249   int scroll_to_row;
    01250   int grouping_index;
    01251   Mode current_mode;
    01252   Grouping groupings[NUM_COLUMNS];
    01253
    01254   CargoDataEntry expanded_rows;
    01255   CargoDataEntry cached_destinations;
    01256   CargoDataVector displayed_rows;
    01257
    01258   StationViewWindow(const WindowDesc *desc, WindowNumber window_number) : Window(),
    01259     scroll_to_row(INT_MAX), grouping_index(0)
    01260   {
    01261     this->rating_lines  = ALH_RATING;
    01262     this->accepts_lines = ALH_ACCEPTS;
    01263
    01264     this->CreateNestedTree(desc);
    01265     this->vscroll = this->GetScrollbar(WID_SV_SCROLLBAR);
    01266     /* Nested widget tree creation is done in two steps to ensure that this->GetWidget<NWidgetCore>(WID_SV_ACCEPTS_RATINGS) exists in UpdateWidgetSize(). */
    01267     this->FinishInitNested(desc, window_number);
    01268
    01269     this->groupings[0] = GR_CARGO;
    01270     this->sortings[0] = ST_AS_GROUPING;
    01271     this->SelectGroupBy(_settings_client.gui.station_gui_group_order);
    01272     this->SelectSortBy(_settings_client.gui.station_gui_sort_by);
    01273     this->sort_orders[0] = SO_ASCENDING;
    01274     this->SelectSortOrder((SortOrder)_settings_client.gui.station_gui_sort_order);
    01275     Owner owner = Station::Get(window_number)->owner;
    01276     if (owner != OWNER_NONE) this->owner = owner;
    01277   }
    01278
    01279   ~StationViewWindow()
    01280   {
    01281     Owner owner = Station::Get(this->window_number)->owner;
    01282     DeleteWindowById(WC_TRAINS_LIST,   VehicleListIdentifier(VL_STATION_LIST, VEH_TRAIN,    owner, this->window_number).Pack(), false);
    01283     DeleteWindowById(WC_ROADVEH_LIST,  VehicleListIdentifier(VL_STATION_LIST, VEH_ROAD,     owner, this->window_number).Pack(), false);
    01284     DeleteWindowById(WC_SHIPS_LIST,    VehicleListIdentifier(VL_STATION_LIST, VEH_SHIP,     owner, this->window_number).Pack(), false);
    01285     DeleteWindowById(WC_AIRCRAFT_LIST, VehicleListIdentifier(VL_STATION_LIST, VEH_AIRCRAFT, owner, this->window_number).Pack(), false);
    01286   }
    01287
    01298   void ShowCargo(CargoDataEntry *data, CargoID cargo, StationID source, StationID next, StationID dest, uint count)
    01299   {
    01300     if (count == 0) return;
    01301     bool auto_distributed = _settings_game.linkgraph.GetDistributionType(cargo) != DT_MANUAL;
    01302     const CargoDataEntry *expand = &this->expanded_rows;
    01303     for (int i = 0; i < NUM_COLUMNS && expand != NULL; ++i) {
    01304       switch (groupings[i]) {
    01305         case GR_CARGO:
    01306           assert(i == 0);
    01307           data = data->InsertOrRetrieve(cargo);
    01308           data->transfers = (source != this->window_number);
    01309           expand = expand->Retrieve(cargo);
    01310           break;
    01311         case GR_SOURCE:
    01312           if (auto_distributed || source != this->window_number) {
    01313             data = data->InsertOrRetrieve(source);
    01314             expand = expand->Retrieve(source);
    01315           }
    01316           break;
    01317         case GR_NEXT:
    01318           if (auto_distributed) {
    01319             data = data->InsertOrRetrieve(next);
    01320             expand = expand->Retrieve(next);
    01321           }
    01322           break;
    01323         case GR_DESTINATION:
    01324           if (auto_distributed) {
    01325             data = data->InsertOrRetrieve(dest);
    01326             expand = expand->Retrieve(dest);
    01327           }
    01328           break;
    01329       }
    01330     }
    01331     data->Update(count);
    01332   }
    01333
    01334   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01335   {
    01336     switch (widget) {
    01337       case WID_SV_WAITING:
    01338         resize->height = FONT_HEIGHT_NORMAL;
    01339         size->height = WD_FRAMERECT_TOP + 4 * resize->height + WD_FRAMERECT_BOTTOM;
    01340         this->expand_shrink_width = max(GetStringBoundingBox("-").width, GetStringBoundingBox("+").width) + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
    01341         break;
    01342
    01343       case WID_SV_ACCEPT_RATING_LIST:
    01344         size->height = WD_FRAMERECT_TOP + ((this->GetWidget<NWidgetCore>(WID_SV_ACCEPTS_RATINGS)->widget_data == STR_STATION_VIEW_RATINGS_BUTTON) ? this->accepts_lines : this->rating_lines) * FONT_HEIGHT_NORMAL + WD_FRAMERECT_BOTTOM;
    01345         break;
    01346
    01347       case WID_SV_CLOSE_AIRPORT:
    01348         if (!(Station::Get(this->window_number)->facilities & FACIL_AIRPORT)) {
    01349           /* Hide 'Close Airport' button if no airport present. */
    01350           size->width = 0;
    01351           resize->width = 0;
    01352           fill->width = 0;
    01353         }
    01354         break;
    01355     }
    01356   }
    01357
    01358   virtual void OnPaint()
    01359   {
    01360     const Station *st = Station::Get(this->window_number);
    01361     CargoDataEntry cargo;
    01362     BuildCargoList(&cargo, st);
    01363
    01364     this->vscroll->SetCount(cargo.GetNumChildren()); // update scrollbar
    01365
    01366     /* disable some buttons */
    01367     this->SetWidgetDisabledState(WID_SV_RENAME,   st->owner != _local_company);
    01368     this->SetWidgetDisabledState(WID_SV_TRAINS,   !(st->facilities & FACIL_TRAIN));
    01369     this->SetWidgetDisabledState(WID_SV_ROADVEHS, !(st->facilities & FACIL_TRUCK_STOP) && !(st->facilities & FACIL_BUS_STOP));
    01370     this->SetWidgetDisabledState(WID_SV_SHIPS,    !(st->facilities & FACIL_DOCK));
    01371     this->SetWidgetDisabledState(WID_SV_PLANES,   !(st->facilities & FACIL_AIRPORT));
    01372     this->SetWidgetDisabledState(WID_SV_CLOSE_AIRPORT, !(st->facilities & FACIL_AIRPORT) || st->owner != _local_company || st->owner == OWNER_NONE); // Also consider SE, where _local_company == OWNER_NONE
    01373     this->SetWidgetLoweredState(WID_SV_CLOSE_AIRPORT, (st->facilities & FACIL_AIRPORT) && (st->airport.flags & AIRPORT_CLOSED_block) != 0);
    01374
    01375     this->DrawWidgets();
    01376
    01377     if (!this->IsShaded()) {
    01378       /* Draw 'accepted cargo' or 'cargo ratings'. */
    01379       const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_SV_ACCEPT_RATING_LIST);
    01380       const Rect r = {wid->pos_x, wid->pos_y, wid->pos_x + wid->current_x - 1, wid->pos_y + wid->current_y - 1};
    01381       if (this->GetWidget<NWidgetCore>(WID_SV_ACCEPTS_RATINGS)->widget_data == STR_STATION_VIEW_RATINGS_BUTTON) {
    01382         int lines = this->DrawAcceptedCargo(r);
    01383         if (lines > this->accepts_lines) { // Resize the widget, and perform re-initialization of the window.
    01384           this->accepts_lines = lines;
    01385           this->ReInit();
    01386           return;
    01387         }
    01388       } else {
    01389         int lines = this->DrawCargoRatings(r);
    01390         if (lines > this->rating_lines) { // Resize the widget, and perform re-initialization of the window.
    01391           this->rating_lines = lines;
    01392           this->ReInit();
    01393           return;
    01394         }
    01395       }
    01396
    01397       /* Draw arrow pointing up/down for ascending/descending sorting */
    01398       this->DrawSortButtonState(WID_SV_SORT_ORDER, sort_orders[1] == SO_ASCENDING ? SBS_UP : SBS_DOWN);
    01399
    01400       int pos = this->vscroll->GetPosition();
    01401
    01402       int maxrows = this->vscroll->GetCapacity();
    01403
    01404       displayed_rows.clear();
    01405
    01406       /* Draw waiting cargo. */
    01407       NWidgetBase *nwi = this->GetWidget<NWidgetBase>(WID_SV_WAITING);
    01408       Rect waiting_rect = {nwi->pos_x, nwi->pos_y, nwi->pos_x + nwi->current_x - 1, nwi->pos_y + nwi->current_y - 1};
    01409       this->DrawEntries(&cargo, waiting_rect, pos, maxrows, 0);
    01410       scroll_to_row = INT_MAX;
    01411     }
    01412   }
    01413
    01414   virtual void SetStringParameters(int widget) const
    01415   {
    01416     const Station *st = Station::Get(this->window_number);
    01417     SetDParam(0, st->index);
    01418     SetDParam(1, st->facilities);
    01419   }
    01420
    01426   void RecalcDestinations(CargoID i)
    01427   {
    01428     const Station *st = Station::Get(this->window_number);
    01429     CargoDataEntry *cargo_entry = cached_destinations.InsertOrRetrieve(i);
    01430     cargo_entry->Clear();
    01431
    01432     const FlowStatMap &flows = st->goods[i].flows;
    01433     for (FlowStatMap::const_iterator it = flows.begin(); it != flows.end(); ++it) {
    01434       StationID from = it->first;
    01435       CargoDataEntry *source_entry = cargo_entry->InsertOrRetrieve(from);
    01436       const FlowStat::SharesMap *shares = it->second.GetShares();
    01437       uint32 prev_count = 0;
    01438       for (FlowStat::SharesMap::const_iterator flow_it = shares->begin(); flow_it != shares->end(); ++flow_it) {
    01439         StationID via = flow_it->second;
    01440         CargoDataEntry *via_entry = source_entry->InsertOrRetrieve(via);
    01441         if (via == this->window_number) {
    01442           via_entry->InsertOrRetrieve(via)->Update(flow_it->first - prev_count);
    01443         } else {
    01444           EstimateDestinations(i, from, via, flow_it->first - prev_count, via_entry);
    01445         }
    01446         prev_count = flow_it->first;
    01447       }
    01448     }
    01449   }
    01450
    01460   void EstimateDestinations(CargoID cargo, StationID source, StationID next, uint count, CargoDataEntry *dest)
    01461   {
    01462     if (Station::IsValidID(next) && Station::IsValidID(source)) {
    01463       CargoDataEntry tmp;
    01464       const FlowStatMap &flowmap = Station::Get(next)->goods[cargo].flows;
    01465       FlowStatMap::const_iterator map_it = flowmap.find(source);
    01466       if (map_it != flowmap.end()) {
    01467         const FlowStat::SharesMap *shares = map_it->second.GetShares();
    01468         uint32 prev_count = 0;
    01469         for (FlowStat::SharesMap::const_iterator i = shares->begin(); i != shares->end(); ++i) {
    01470           tmp.InsertOrRetrieve(i->second)->Update(i->first - prev_count);
    01471           prev_count = i->first;
    01472         }
    01473       }
    01474
    01475       if (tmp.GetCount() == 0) {
    01476         dest->InsertOrRetrieve(INVALID_STATION)->Update(count);
    01477       } else {
    01478         uint sum_estimated = 0;
    01479         while (sum_estimated < count) {
    01480           for (CargoDataSet::iterator i = tmp.Begin(); i != tmp.End() && sum_estimated < count; ++i) {
    01481             CargoDataEntry *child = *i;
    01482             uint estimate = DivideApprox(child->GetCount() * count, tmp.GetCount());
    01483             if (estimate == 0) estimate = 1;
    01484
    01485             sum_estimated += estimate;
    01486             if (sum_estimated > count) {
    01487               estimate -= sum_estimated - count;
    01488               sum_estimated = count;
    01489             }
    01490
    01491             if (estimate > 0) {
    01492               if (child->GetStation() == next) {
    01493                 dest->InsertOrRetrieve(next)->Update(estimate);
    01494               } else {
    01495                 EstimateDestinations(cargo, source, child->GetStation(), estimate, dest);
    01496               }
    01497             }
    01498           }
    01499
    01500         }
    01501       }
    01502     } else {
    01503       dest->InsertOrRetrieve(INVALID_STATION)->Update(count);
    01504     }
    01505   }
    01506
    01513   void BuildFlowList(CargoID i, const FlowStatMap &flows, CargoDataEntry *cargo)
    01514   {
    01515     const CargoDataEntry *source_dest = this->cached_destinations.Retrieve(i);
    01516     for (FlowStatMap::const_iterator it = flows.begin(); it != flows.end(); ++it) {
    01517       StationID from = it->first;
    01518       const CargoDataEntry *source_entry = source_dest->Retrieve(from);
    01519       const FlowStat::SharesMap *shares = it->second.GetShares();
    01520       for (FlowStat::SharesMap::const_iterator flow_it = shares->begin(); flow_it != shares->end(); ++flow_it) {
    01521         const CargoDataEntry *via_entry = source_entry->Retrieve(flow_it->second);
    01522         for (CargoDataSet::iterator dest_it = via_entry->Begin(); dest_it != via_entry->End(); ++dest_it) {
    01523           CargoDataEntry *dest_entry = *dest_it;
    01524           ShowCargo(cargo, i, from, flow_it->second, dest_entry->GetStation(), dest_entry->GetCount());
    01525         }
    01526       }
    01527     }
    01528   }
    01529
    01536   void BuildCargoList(CargoID i, const StationCargoList &packets, CargoDataEntry *cargo)
    01537   {
    01538     const CargoDataEntry *source_dest = this->cached_destinations.Retrieve(i);
    01539     for (StationCargoList::ConstIterator it = packets.Packets()->begin(); it != packets.Packets()->end(); it++) {
    01540       const CargoPacket *cp = *it;
    01541       StationID next = it.GetKey();
    01542
    01543       const CargoDataEntry *source_entry = source_dest->Retrieve(cp->SourceStation());
    01544       if (source_entry == NULL) {
    01545         this->ShowCargo(cargo, i, cp->SourceStation(), next, INVALID_STATION, cp->Count());
    01546         continue;
    01547       }
    01548
    01549       const CargoDataEntry *via_entry = source_entry->Retrieve(next);
    01550       if (via_entry == NULL) {
    01551         this->ShowCargo(cargo, i, cp->SourceStation(), next, INVALID_STATION, cp->Count());
    01552         continue;
    01553       }
    01554
    01555       for (CargoDataSet::iterator dest_it = via_entry->Begin(); dest_it != via_entry->End(); ++dest_it) {
    01556         CargoDataEntry *dest_entry = *dest_it;
    01557         uint val = DivideApprox(cp->Count() * dest_entry->GetCount(), via_entry->GetCount());
    01558         this->ShowCargo(cargo, i, cp->SourceStation(), next, dest_entry->GetStation(), val);
    01559       }
    01560     }
    01561     this->ShowCargo(cargo, i, NEW_STATION, NEW_STATION, NEW_STATION, packets.ReservedCount());
    01562   }
    01563
    01569   void BuildCargoList(CargoDataEntry *cargo, const Station *st)
    01570   {
    01571     for (CargoID i = 0; i < NUM_CARGO; i++) {
    01572
    01573       if (this->cached_destinations.Retrieve(i) == NULL) {
    01574         this->RecalcDestinations(i);
    01575       }
    01576
    01577       if (this->current_mode == MODE_WAITING) {
    01578         this->BuildCargoList(i, st->goods[i].cargo, cargo);
    01579       } else {
    01580         this->BuildFlowList(i, st->goods[i].flows, cargo);
    01581       }
    01582     }
    01583   }
    01584
    01589   void SetDisplayedRow(const CargoDataEntry *data)
    01590   {
    01591     std::list<StationID> stations;
    01592     const CargoDataEntry *parent = data->GetParent();
    01593     if (parent->GetParent() == NULL) {
    01594       this->displayed_rows.push_back(RowDisplay(&this->expanded_rows, data->GetCargo()));
    01595       return;
    01596     }
    01597
    01598     StationID next = data->GetStation();
    01599     while (parent->GetParent()->GetParent() != NULL) {
    01600       stations.push_back(parent->GetStation());
    01601       parent = parent->GetParent();
    01602     }
    01603
    01604     CargoID cargo = parent->GetCargo();
    01605     CargoDataEntry *filter = this->expanded_rows.Retrieve(cargo);
    01606     while (!stations.empty()) {
    01607       filter = filter->Retrieve(stations.back());
    01608       stations.pop_back();
    01609     }
    01610
    01611     this->displayed_rows.push_back(RowDisplay(filter, next));
    01612   }
    01613
    01622   StringID GetEntryString(StationID station, StringID here, StringID other_station, StringID any)
    01623   {
    01624     if (station == this->window_number) {
    01625       return here;
    01626     } else if (station == INVALID_STATION) {
    01627       return any;
    01628     } else if (station == NEW_STATION) {
    01629       return STR_STATION_VIEW_RESERVED;
    01630     } else {
    01631       SetDParam(2, station);
    01632       return other_station;
    01633     }
    01634   }
    01635
    01643   StringID SearchNonStop(CargoDataEntry *cd, StationID station, int column)
    01644   {
    01645     CargoDataEntry *parent = cd->GetParent();
    01646     for (int i = column - 1; i > 0; --i) {
    01647       if (this->groupings[i] == GR_DESTINATION) {
    01648         if (parent->GetStation() == station) {
    01649           return STR_STATION_VIEW_NONSTOP;
    01650         } else {
    01651           return STR_STATION_VIEW_VIA;
    01652         }
    01653       }
    01654       parent = parent->GetParent();
    01655     }
    01656
    01657     if (this->groupings[column + 1] == GR_DESTINATION) {
    01658       CargoDataSet::iterator begin = cd->Begin();
    01659       CargoDataSet::iterator end = cd->End();
    01660       if (begin != end && ++(cd->Begin()) == end && (*(begin))->GetStation() == station) {
    01661         return STR_STATION_VIEW_NONSTOP;
    01662       } else {
    01663         return STR_STATION_VIEW_VIA;
    01664       }
    01665     }
    01666
    01667     return STR_STATION_VIEW_VIA;
    01668   }
    01669
    01680   int DrawEntries(CargoDataEntry *entry, Rect &r, int pos, int maxrows, int column, CargoID cargo = CT_INVALID)
    01681   {
    01682     if (this->sortings[column] == ST_AS_GROUPING) {
    01683       if (this->groupings[column] != GR_CARGO) {
    01684         entry->Resort(ST_STATION_STRING, this->sort_orders[column]);
    01685       }
    01686     } else {
    01687       entry->Resort(ST_COUNT, this->sort_orders[column]);
    01688     }
    01689     for (CargoDataSet::iterator i = entry->Begin(); i != entry->End(); ++i) {
    01690       CargoDataEntry *cd = *i;
    01691
    01692       Grouping grouping = this->groupings[column];
    01693       if (grouping == GR_CARGO) cargo = cd->GetCargo();
    01694       bool auto_distributed = _settings_game.linkgraph.GetDistributionType(cargo) != DT_MANUAL;
    01695
    01696       if (pos > -maxrows && pos <= 0) {
    01697         StringID str = STR_EMPTY;
    01698         int y = r.top + WD_FRAMERECT_TOP - pos * FONT_HEIGHT_NORMAL;
    01699         SetDParam(0, cargo);
    01700         SetDParam(1, cd->GetCount());
    01701
    01702         if (this->groupings[column] == GR_CARGO) {
    01703           str = STR_STATION_VIEW_WAITING_CARGO;
    01704           DrawCargoIcons(cd->GetCargo(), cd->GetCount(), r.left + WD_FRAMERECT_LEFT + this->expand_shrink_width, r.right - WD_FRAMERECT_RIGHT - this->expand_shrink_width, y);
    01705         } else {
    01706           if (!auto_distributed) grouping = GR_SOURCE;
    01707           StationID station = cd->GetStation();
    01708
    01709           switch (grouping) {
    01710             case GR_SOURCE:
    01711               str = this->GetEntryString(station, STR_STATION_VIEW_FROM_HERE, STR_STATION_VIEW_FROM, STR_STATION_VIEW_FROM_ANY);
    01712               break;
    01713             case GR_NEXT:
    01714               str = this->GetEntryString(station, STR_STATION_VIEW_VIA_HERE, STR_STATION_VIEW_VIA, STR_STATION_VIEW_VIA_ANY);
    01715               if (str == STR_STATION_VIEW_VIA) str = this->SearchNonStop(cd, station, column);
    01716               break;
    01717             case GR_DESTINATION:
    01718               str = this->GetEntryString(station, STR_STATION_VIEW_TO_HERE, STR_STATION_VIEW_TO, STR_STATION_VIEW_TO_ANY);
    01719               break;
    01720             default:
    01721               NOT_REACHED();
    01722           }
    01723           if (pos == -this->scroll_to_row && Station::IsValidID(station)) {
    01724             ScrollMainWindowToTile(Station::Get(station)->xy);
    01725           }
    01726         }
    01727
    01728         bool rtl = _current_text_dir == TD_RTL;
    01729         int text_left    = rtl ? r.left + this->expand_shrink_width : r.left + WD_FRAMERECT_LEFT + column * this->expand_shrink_width;
    01730         int text_right   = rtl ? r.right - WD_FRAMERECT_LEFT - column * this->expand_shrink_width : r.right - this->expand_shrink_width;
    01731         int shrink_left  = rtl ? r.left + WD_FRAMERECT_LEFT : r.right - this->expand_shrink_width + WD_FRAMERECT_LEFT;
    01732         int shrink_right = rtl ? r.left + this->expand_shrink_width - WD_FRAMERECT_RIGHT : r.right - WD_FRAMERECT_RIGHT;
    01733
    01734         DrawString(text_left, text_right, y, str);
    01735
    01736         if (column < NUM_COLUMNS - 1) {
    01737           const char *sym = NULL;
    01738           if (cd->GetNumChildren() > 0) {
    01739             sym = "-";
    01740           } else if (auto_distributed && str != STR_STATION_VIEW_RESERVED) {
    01741             sym = "+";
    01742           } else {
    01743             /* Only draw '+' if there is something to be shown. */
    01744             const StationCargoList &list = Station::Get(this->window_number)->goods[cargo].cargo;
    01745             if (grouping == GR_CARGO && (list.ReservedCount() > 0 || cd->transfers)) {
    01746               sym = "+";
    01747             }
    01748           }
    01749           if (sym) DrawString(shrink_left, shrink_right, y, sym, TC_YELLOW);
    01750         }
    01751         this->SetDisplayedRow(cd);
    01752       }
    01753       --pos;
    01754       if (auto_distributed || column == 0) {
    01755         pos = this->DrawEntries(cd, r, pos, maxrows, column + 1, cargo);
    01756       }
    01757     }
    01758     return pos;
    01759   }
    01760
    01766   int DrawAcceptedCargo(const Rect &r) const
    01767   {
    01768     const Station *st = Station::Get(this->window_number);
    01769
    01770     uint32 cargo_mask = 0;
    01771     for (CargoID i = 0; i < NUM_CARGO; i++) {
    01772       if (HasBit(st->goods[i].acceptance_pickup, GoodsEntry::GES_ACCEPTANCE)) SetBit(cargo_mask, i);
    01773     }
    01774     SetDParam(0, cargo_mask);
    01775     int bottom = DrawStringMultiLine(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, INT32_MAX, STR_STATION_VIEW_ACCEPTS_CARGO);
    01776     return CeilDiv(bottom - r.top - WD_FRAMERECT_TOP, FONT_HEIGHT_NORMAL);
    01777   }
    01778
    01784   int DrawCargoRatings(const Rect &r) const
    01785   {
    01786     const Station *st = Station::Get(this->window_number);
    01787     int y = r.top + WD_FRAMERECT_TOP;
    01788
    01789     if (st->town->exclusive_counter > 0) {
    01790       SetDParam(0, st->town->exclusivity);
    01791       y = DrawStringMultiLine(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, r.bottom, st->town->exclusivity == st->owner ? STR_STATIOV_VIEW_EXCLUSIVE_RIGHTS_SELF : STR_STATIOV_VIEW_EXCLUSIVE_RIGHTS_COMPANY);
    01792       y += WD_PAR_VSEP_WIDE;
    01793     }
    01794
    01795     DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, STR_STATION_VIEW_SUPPLY_RATINGS_TITLE);
    01796     y += FONT_HEIGHT_NORMAL;
    01797
    01798     const CargoSpec *cs;
    01799     FOR_ALL_SORTED_STANDARD_CARGOSPECS(cs) {
    01800       const GoodsEntry *ge = &st->goods[cs->Index()];
    01801       if (!HasBit(ge->acceptance_pickup, GoodsEntry::GES_PICKUP)) continue;
    01802
    01803       SetDParam(0, cs->name);
    01804       SetDParam(1, ge->supply);
    01805       SetDParam(3, ToPercent8(ge->rating));
    01806       SetDParam(2, STR_CARGO_RATING_APPALLING + (ge->rating >> 5));
    01807       DrawString(r.left + WD_FRAMERECT_LEFT + 6, r.right - WD_FRAMERECT_RIGHT - 6, y, STR_STATION_VIEW_CARGO_SUPPLY_RATING);
    01808       y += FONT_HEIGHT_NORMAL;
    01809     }
    01810     return CeilDiv(y - r.top - WD_FRAMERECT_TOP, FONT_HEIGHT_NORMAL);
    01811   }
    01812
    01818   template<class Tid>
    01819   void HandleCargoWaitingClick(CargoDataEntry *filter, Tid next)
    01820   {
    01821     if (filter->Retrieve(next) != NULL) {
    01822       filter->Remove(next);
    01823     } else {
    01824       filter->InsertOrRetrieve(next);
    01825     }
    01826   }
    01827
    01832   void HandleCargoWaitingClick(int row)
    01833   {
    01834     if (row < 0 || (uint)row >= this->displayed_rows.size()) return;
    01835     if (_ctrl_pressed) {
    01836       this->scroll_to_row = row;
    01837     } else {
    01838       RowDisplay &display = this->displayed_rows[row];
    01839       if (display.filter == &this->expanded_rows) {
    01840         this->HandleCargoWaitingClick<CargoID>(display.filter, display.next_cargo);
    01841       } else {
    01842         this->HandleCargoWaitingClick<StationID>(display.filter, display.next_station);
    01843       }
    01844     }
    01845     this->SetWidgetDirty(WID_SV_WAITING);
    01846   }
    01847
    01848   virtual void OnClick(Point pt, int widget, int click_count)
    01849   {
    01850     switch (widget) {
    01851       case WID_SV_WAITING:
    01852         this->HandleCargoWaitingClick(this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_SV_WAITING, WD_FRAMERECT_TOP, FONT_HEIGHT_NORMAL) - this->vscroll->GetPosition());
    01853         break;
    01854
    01855       case WID_SV_LOCATION:
    01856         if (_ctrl_pressed) {
    01857           ShowExtraViewPortWindow(Station::Get(this->window_number)->xy);
    01858         } else {
    01859           ScrollMainWindowToTile(Station::Get(this->window_number)->xy);
    01860         }
    01861         break;
    01862
    01863       case WID_SV_ACCEPTS_RATINGS: {
    01864         /* Swap between 'accepts' and 'ratings' view. */
    01865         int height_change;
    01866         NWidgetCore *nwi = this->GetWidget<NWidgetCore>(WID_SV_ACCEPTS_RATINGS);
    01867         if (this->GetWidget<NWidgetCore>(WID_SV_ACCEPTS_RATINGS)->widget_data == STR_STATION_VIEW_RATINGS_BUTTON) {
    01868           nwi->SetDataTip(STR_STATION_VIEW_ACCEPTS_BUTTON, STR_STATION_VIEW_ACCEPTS_TOOLTIP); // Switch to accepts view.
    01869           height_change = this->rating_lines - this->accepts_lines;
    01870         } else {
    01871           nwi->SetDataTip(STR_STATION_VIEW_RATINGS_BUTTON, STR_STATION_VIEW_RATINGS_TOOLTIP); // Switch to ratings view.
    01872           height_change = this->accepts_lines - this->rating_lines;
    01873         }
    01874         this->ReInit(0, height_change * FONT_HEIGHT_NORMAL);
    01875         break;
    01876       }
    01877
    01878       case WID_SV_RENAME:
    01879         SetDParam(0, this->window_number);
    01880         ShowQueryString(STR_STATION_NAME, STR_STATION_VIEW_RENAME_STATION_CAPTION, MAX_LENGTH_STATION_NAME_CHARS,
    01881             this, CS_ALPHANUMERAL, QSF_ENABLE_DEFAULT | QSF_LEN_IN_CHARS);
    01882         break;
    01883
    01884       case WID_SV_CLOSE_AIRPORT:
    01885         DoCommandP(0, this->window_number, 0, CMD_OPEN_CLOSE_AIRPORT);
    01886         break;
    01887
    01888       case WID_SV_TRAINS:   // Show list of scheduled trains to this station
    01889       case WID_SV_ROADVEHS: // Show list of scheduled road-vehicles to this station
    01890       case WID_SV_SHIPS:    // Show list of scheduled ships to this station
    01891       case WID_SV_PLANES: { // Show list of scheduled aircraft to this station
    01892         Owner owner = Station::Get(this->window_number)->owner;
    01893         ShowVehicleListWindow(owner, (VehicleType)(widget - WID_SV_TRAINS), (StationID)this->window_number);
    01894         break;
    01895       }
    01896
    01897       case WID_SV_SORT_BY: {
    01898         ShowDropDownMenu(this, _sort_names, this->current_mode, WID_SV_SORT_BY, 0, 0);
    01899         break;
    01900       }
    01901
    01902       case WID_SV_GROUP_BY: {
    01903         ShowDropDownMenu(this, _group_names, this->grouping_index, WID_SV_GROUP_BY, 0, 0);
    01904         break;
    01905       }
    01906
    01907       case WID_SV_SORT_ORDER: { // flip sorting method asc/desc
    01908         this->SelectSortOrder(this->sort_orders[1] == SO_ASCENDING ? SO_DESCENDING : SO_ASCENDING);
    01909         this->SetTimeout();
    01910         this->LowerWidget(WID_SV_SORT_ORDER);
    01911         break;
    01912       }
    01913     }
    01914   }
    01915
    01920   void SelectSortOrder(SortOrder order)
    01921   {
    01922     this->sort_orders[1] = this->sort_orders[2] = this->sort_orders[3] = order;
    01923     _settings_client.gui.station_gui_sort_order = this->sort_orders[1];
    01924     this->SetDirty();
    01925   }
    01926
    01931   void SelectSortBy(int index)
    01932   {
    01933     _settings_client.gui.station_gui_sort_by = index;
    01934     switch (_sort_names[index]) {
    01935       case STR_STATION_VIEW_WAITING_STATION:
    01936         this->current_mode = MODE_WAITING;
    01937         this->sortings[1] = this->sortings[2] = this->sortings[3] = ST_AS_GROUPING;
    01938         break;
    01939       case STR_STATION_VIEW_WAITING_AMOUNT:
    01940         this->current_mode = MODE_WAITING;
    01941         this->sortings[1] = this->sortings[2] = this->sortings[3] = ST_COUNT;
    01942         break;
    01943       case STR_STATION_VIEW_PLANNED_STATION:
    01944         this->current_mode = MODE_PLANNED;
    01945         this->sortings[1] = this->sortings[2] = this->sortings[3] = ST_AS_GROUPING;
    01946         break;
    01947       case STR_STATION_VIEW_PLANNED_AMOUNT:
    01948         this->current_mode = MODE_PLANNED;
    01949         this->sortings[1] = this->sortings[2] = this->sortings[3] = ST_COUNT;
    01950         break;
    01951       default:
    01952         NOT_REACHED();
    01953     }
    01954     /* Display the current sort variant */
    01955     this->GetWidget<NWidgetCore>(WID_SV_SORT_BY)->widget_data = _sort_names[index];
    01956     this->SetDirty();
    01957   }
    01958
    01963   void SelectGroupBy(int index)
    01964   {
    01965     this->grouping_index = index;
    01966     _settings_client.gui.station_gui_group_order = index;
    01967     this->GetWidget<NWidgetCore>(WID_SV_GROUP_BY)->widget_data = _group_names[index];
    01968     switch (_group_names[index]) {
    01969       case STR_STATION_VIEW_GROUP_S_V_D:
    01970         this->groupings[1] = GR_SOURCE;
    01971         this->groupings[2] = GR_NEXT;
    01972         this->groupings[3] = GR_DESTINATION;
    01973         break;
    01974       case STR_STATION_VIEW_GROUP_S_D_V:
    01975         this->groupings[1] = GR_SOURCE;
    01976         this->groupings[2] = GR_DESTINATION;
    01977         this->groupings[3] = GR_NEXT;
    01978         break;
    01979       case STR_STATION_VIEW_GROUP_V_S_D:
    01980         this->groupings[1] = GR_NEXT;
    01981         this->groupings[2] = GR_SOURCE;
    01982         this->groupings[3] = GR_DESTINATION;
    01983         break;
    01984       case STR_STATION_VIEW_GROUP_V_D_S:
    01985         this->groupings[1] = GR_NEXT;
    01986         this->groupings[2] = GR_DESTINATION;
    01987         this->groupings[3] = GR_SOURCE;
    01988         break;
    01989       case STR_STATION_VIEW_GROUP_D_S_V:
    01990         this->groupings[1] = GR_DESTINATION;
    01991         this->groupings[2] = GR_SOURCE;
    01992         this->groupings[3] = GR_NEXT;
    01993         break;
    01994       case STR_STATION_VIEW_GROUP_D_V_S:
    01995         this->groupings[1] = GR_DESTINATION;
    01996         this->groupings[2] = GR_NEXT;
    01997         this->groupings[3] = GR_SOURCE;
    01998         break;
    01999     }
    02000     this->SetDirty();
    02001   }
    02002
    02003   virtual void OnDropdownSelect(int widget, int index)
    02004   {
    02005     if (widget == WID_SV_SORT_BY) {
    02006       this->SelectSortBy(index);
    02007     } else {
    02008       this->SelectGroupBy(index);
    02009     }
    02010   }
    02011
    02012   virtual void OnQueryTextFinished(char *str)
    02013   {
    02014     if (str == NULL) return;
    02015
    02016     DoCommandP(0, this->window_number, 0, CMD_RENAME_STATION | CMD_MSG(STR_ERROR_CAN_T_RENAME_STATION), NULL, str);
    02017   }
    02018
    02019   virtual void OnResize()
    02020   {
    02021     this->vscroll->SetCapacityFromWidget(this, WID_SV_WAITING, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM);
    02022   }
    02023
    02029   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    02030   {
    02031     if (gui_scope) {
    02032       if (data >= 0 && data < NUM_CARGO) {
    02033         this->cached_destinations.Remove((CargoID)data);
    02034       } else {
    02035         this->ReInit();
    02036       }
    02037     }
    02038   }
    02039 };
    02040
    02041 const StringID StationViewWindow::_sort_names[] = {
    02042   STR_STATION_VIEW_WAITING_STATION,
    02043   STR_STATION_VIEW_WAITING_AMOUNT,
    02044   STR_STATION_VIEW_PLANNED_STATION,
    02045   STR_STATION_VIEW_PLANNED_AMOUNT,
    02046   INVALID_STRING_ID
    02047 };
    02048
    02049 const StringID StationViewWindow::_group_names[] = {
    02050   STR_STATION_VIEW_GROUP_S_V_D,
    02051   STR_STATION_VIEW_GROUP_S_D_V,
    02052   STR_STATION_VIEW_GROUP_V_S_D,
    02053   STR_STATION_VIEW_GROUP_V_D_S,
    02054   STR_STATION_VIEW_GROUP_D_S_V,
    02055   STR_STATION_VIEW_GROUP_D_V_S,
    02056   INVALID_STRING_ID
    02057 };
    02058
    02059 static const WindowDesc _station_view_desc(
    02060   WDP_AUTO, 249, 117,
    02061   WC_STATION_VIEW, WC_NONE,
    02062   0,
    02063   _nested_station_view_widgets, lengthof(_nested_station_view_widgets)
    02064 );
    02065
    02071 void ShowStationViewWindow(StationID station)
    02072 {
    02073   AllocateWindowDescFront<StationViewWindow>(&_station_view_desc, station);
    02074 }
    02075
    02077 struct TileAndStation {
    02078   TileIndex tile;
    02079   StationID station;
    02080 };
    02081
    02082 static SmallVector<TileAndStation, 8> _deleted_stations_nearby;
    02083 static SmallVector<StationID, 8> _stations_nearby_list;
    02084
    02092 template <class T>
    02093 static bool AddNearbyStation(TileIndex tile, void *user_data)
    02094 {
    02095   TileArea *ctx = (TileArea *)user_data;
    02096
    02097   /* First check if there were deleted stations here */
    02098   for (uint i = 0; i < _deleted_stations_nearby.Length(); i++) {
    02099     TileAndStation *ts = _deleted_stations_nearby.Get(i);
    02100     if (ts->tile == tile) {
    02101       *_stations_nearby_list.Append() = _deleted_stations_nearby[i].station;
    02102       _deleted_stations_nearby.Erase(ts);
    02103       i--;
    02104     }
    02105   }
    02106
    02107   /* Check if own station and if we stay within station spread */
    02108   if (!IsTileType(tile, MP_STATION)) return false;
    02109
    02110   StationID sid = GetStationIndex(tile);
    02111
    02112   /* This station is (likely) a waypoint */
    02113   if (!T::IsValidID(sid)) return false;
    02114
    02115   T *st = T::Get(sid);
    02116   if (st->owner != _local_company || _stations_nearby_list.Contains(sid)) return false;
    02117
    02118   if (st->rect.BeforeAddRect(ctx->tile, ctx->w, ctx->h, StationRect::ADD_TEST).Succeeded()) {
    02119     *_stations_nearby_list.Append() = sid;
    02120   }
    02121
    02122   return false; // We want to include *all* nearby stations
    02123 }
    02124
    02134 template <class T>
    02135 static const T *FindStationsNearby(TileArea ta, bool distant_join)
    02136 {
    02137   TileArea ctx = ta;
    02138
    02139   _stations_nearby_list.Clear();
    02140   _deleted_stations_nearby.Clear();
    02141
    02142   /* Check the inside, to return, if we sit on another station */
    02143   TILE_AREA_LOOP(t, ta) {
    02144     if (t < MapSize() && IsTileType(t, MP_STATION) && T::IsValidID(GetStationIndex(t))) return T::GetByTile(t);
    02145   }
    02146
    02147   /* Look for deleted stations */
    02148   const BaseStation *st;
    02149   FOR_ALL_BASE_STATIONS(st) {
    02150     if (T::IsExpected(st) && !st->IsInUse() && st->owner == _local_company) {
    02151       /* Include only within station spread (yes, it is strictly less than) */
    02152       if (max(DistanceMax(ta.tile, st->xy), DistanceMax(TILE_ADDXY(ta.tile, ta.w - 1, ta.h - 1), st->xy)) < _settings_game.station.station_spread) {
    02153         TileAndStation *ts = _deleted_stations_nearby.Append();
    02154         ts->tile = st->xy;
    02155         ts->station = st->index;
    02156
    02157         /* Add the station when it's within where we're going to build */
    02158         if (IsInsideBS(TileX(st->xy), TileX(ctx.tile), ctx.w) &&
    02159             IsInsideBS(TileY(st->xy), TileY(ctx.tile), ctx.h)) {
    02160           AddNearbyStation<T>(st->xy, &ctx);
    02161         }
    02162       }
    02163     }
    02164   }
    02165
    02166   /* Only search tiles where we have a chance to stay within the station spread.
    02167    * The complete check needs to be done in the callback as we don't know the
    02168    * extent of the found station, yet. */
    02169   if (distant_join && min(ta.w, ta.h) >= _settings_game.station.station_spread) return NULL;
    02170   uint max_dist = distant_join ? _settings_game.station.station_spread - min(ta.w, ta.h) : 1;
    02171
    02172   TileIndex tile = TILE_ADD(ctx.tile, TileOffsByDir(DIR_N));
    02173   CircularTileSearch(&tile, max_dist, ta.w, ta.h, AddNearbyStation<T>, &ctx);
    02174
    02175   return NULL;
    02176 }
    02177
    02178 static const NWidgetPart _nested_select_station_widgets[] = {
    02179   NWidget(NWID_HORIZONTAL),
    02180     NWidget(WWT_CLOSEBOX, COLOUR_DARK_GREEN),
    02181     NWidget(WWT_CAPTION, COLOUR_DARK_GREEN, WID_JS_CAPTION), SetDataTip(STR_JOIN_STATION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    02182   EndContainer(),
    02183   NWidget(NWID_HORIZONTAL),
    02184     NWidget(WWT_PANEL, COLOUR_DARK_GREEN, WID_JS_PANEL), SetResize(1, 0), SetScrollbar(WID_JS_SCROLLBAR), EndContainer(),
    02185     NWidget(NWID_VERTICAL),
    02186       NWidget(NWID_VSCROLLBAR, COLOUR_DARK_GREEN, WID_JS_SCROLLBAR),
    02187       NWidget(WWT_RESIZEBOX, COLOUR_DARK_GREEN),
    02188     EndContainer(),
    02189   EndContainer(),
    02190 };
    02191
    02196 template <class T>
    02197 struct SelectStationWindow : Window {
    02198   CommandContainer select_station_cmd;
    02199   TileArea area;
    02200   Scrollbar *vscroll;
    02201
    02202   SelectStationWindow(const WindowDesc *desc, CommandContainer cmd, TileArea ta) :
    02203     Window(),
    02204     select_station_cmd(cmd),
    02205     area(ta)
    02206   {
    02207     this->CreateNestedTree(desc);
    02208     this->vscroll = this->GetScrollbar(WID_JS_SCROLLBAR);
    02209     this->GetWidget<NWidgetCore>(WID_JS_CAPTION)->widget_data = T::EXPECTED_FACIL == FACIL_WAYPOINT ? STR_JOIN_WAYPOINT_CAPTION : STR_JOIN_STATION_CAPTION;
    02210     this->FinishInitNested(desc, 0);
    02211     this->OnInvalidateData(0);
    02212   }
    02213
    02214   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    02215   {
    02216     if (widget != WID_JS_PANEL) return;
    02217
    02218     /* Determine the widest string */
    02219     Dimension d = GetStringBoundingBox(T::EXPECTED_FACIL == FACIL_WAYPOINT ? STR_JOIN_WAYPOINT_CREATE_SPLITTED_WAYPOINT : STR_JOIN_STATION_CREATE_SPLITTED_STATION);
    02220     for (uint i = 0; i < _stations_nearby_list.Length(); i++) {
    02221       const T *st = T::Get(_stations_nearby_list[i]);
    02222       SetDParam(0, st->index);
    02223       SetDParam(1, st->facilities);
    02224       d = maxdim(d, GetStringBoundingBox(T::EXPECTED_FACIL == FACIL_WAYPOINT ? STR_STATION_LIST_WAYPOINT : STR_STATION_LIST_STATION));
    02225     }
    02226
    02227     resize->height = d.height;
    02228     d.height *= 5;
    02229     d.width += WD_FRAMERECT_RIGHT + WD_FRAMERECT_LEFT;
    02230     d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    02231     *size = d;
    02232   }
    02233
    02234   virtual void DrawWidget(const Rect &r, int widget) const
    02235   {
    02236     if (widget != WID_JS_PANEL) return;
    02237
    02238     uint y = r.top + WD_FRAMERECT_TOP;
    02239     if (this->vscroll->GetPosition() == 0) {
    02240       DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, T::EXPECTED_FACIL == FACIL_WAYPOINT ? STR_JOIN_WAYPOINT_CREATE_SPLITTED_WAYPOINT : STR_JOIN_STATION_CREATE_SPLITTED_STATION);
    02241       y += this->resize.step_height;
    02242     }
    02243
    02244     for (uint i = max<uint>(1, this->vscroll->GetPosition()); i <= _stations_nearby_list.Length(); ++i, y += this->resize.step_height) {
    02245       /* Don't draw anything if it extends past the end of the window. */
    02246       if (i - this->vscroll->GetPosition() >= this->vscroll->GetCapacity()) break;
    02247
    02248       const T *st = T::Get(_stations_nearby_list[i - 1]);
    02249       SetDParam(0, st->index);
    02250       SetDParam(1, st->facilities);
    02251       DrawString(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, y, T::EXPECTED_FACIL == FACIL_WAYPOINT ? STR_STATION_LIST_WAYPOINT : STR_STATION_LIST_STATION);
    02252     }
    02253   }
    02254
    02255   virtual void OnClick(Point pt, int widget, int click_count)
    02256   {
    02257     if (widget != WID_JS_PANEL) return;
    02258
    02259     uint st_index = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_JS_PANEL, WD_FRAMERECT_TOP);
    02260     bool distant_join = (st_index > 0);
    02261     if (distant_join) st_index--;
    02262
    02263     if (distant_join && st_index >= _stations_nearby_list.Length()) return;
    02264
    02265     /* Insert station to be joined into stored command */
    02266     SB(this->select_station_cmd.p2, 16, 16,
    02267        (distant_join ? _stations_nearby_list[st_index] : NEW_STATION));
    02268
    02269     /* Execute stored Command */
    02270     DoCommandP(&this->select_station_cmd);
    02271
    02272     /* Close Window; this might cause double frees! */
    02273     DeleteWindowById(WC_SELECT_STATION, 0);
    02274   }
    02275
    02276   virtual void OnTick()
    02277   {
    02278     if (_thd.dirty & 2) {
    02279       _thd.dirty &= ~2;
    02280       this->SetDirty();
    02281     }
    02282   }
    02283
    02284   virtual void OnResize()
    02285   {
    02286     this->vscroll->SetCapacityFromWidget(this, WID_JS_PANEL, WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM);
    02287   }
    02288
    02294   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    02295   {
    02296     if (!gui_scope) return;
    02297     FindStationsNearby<T>(this->area, true);
    02298     this->vscroll->SetCount(_stations_nearby_list.Length() + 1);
    02299     this->SetDirty();
    02300   }
    02301 };
    02302
    02303 static const WindowDesc _select_station_desc(
    02304   WDP_AUTO, 200, 180,
    02305   WC_SELECT_STATION, WC_NONE,
    02306   WDF_CONSTRUCTION,
    02307   _nested_select_station_widgets, lengthof(_nested_select_station_widgets)
    02308 );
    02309
    02310
    02318 template <class T>
    02319 static bool StationJoinerNeeded(CommandContainer cmd, TileArea ta)
    02320 {
    02321   /* Only show selection if distant join is enabled in the settings */
    02322   if (!_settings_game.station.distant_join_stations) return false;
    02323
    02324   /* If a window is already opened and we didn't ctrl-click,
    02325    * return true (i.e. just flash the old window) */
    02326   Window *selection_window = FindWindowById(WC_SELECT_STATION, 0);
    02327   if (selection_window != NULL) {
    02328     /* Abort current distant-join and start new one */
    02329     delete selection_window;
    02330     UpdateTileSelection();
    02331   }
    02332
    02333   /* only show the popup, if we press ctrl */
    02334   if (!_ctrl_pressed) return false;
    02335
    02336   /* Now check if we could build there */
    02337   if (DoCommand(&cmd, CommandFlagsToDCFlags(GetCommandFlags(cmd.cmd))).Failed()) return false;
    02338
    02339   /* Test for adjacent station or station below selection.
    02340    * If adjacent-stations is disabled and we are building next to a station, do not show the selection window.
    02341    * but join the other station immediately. */
    02342   const T *st = FindStationsNearby<T>(ta, false);
    02343   return st == NULL && (_settings_game.station.adjacent_stations || _stations_nearby_list.Length() == 0);
    02344 }
    02345
    02352 template <class T>
    02353 void ShowSelectBaseStationIfNeeded(CommandContainer cmd, TileArea ta)
    02354 {
    02355   if (StationJoinerNeeded<T>(cmd, ta)) {
    02356     if (!_settings_client.gui.persistent_buildingtools) ResetObjectToPlace();
    02357     new SelectStationWindow<T>(&_select_station_desc, cmd, ta);
    02358   } else {
    02359     DoCommandP(&cmd);
    02360   }
    02361 }
    02362
    02368 void ShowSelectStationIfNeeded(CommandContainer cmd, TileArea ta)
    02369 {
    02370   ShowSelectBaseStationIfNeeded<Station>(cmd, ta);
    02371 }
    02372
    02378 void ShowSelectWaypointIfNeeded(CommandContainer cmd, TileArea ta)
    02379 {
    02380   ShowSelectBaseStationIfNeeded<Waypoint>(cmd, ta);
    02381 }