settings_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 "currency.h"
00014 #include "error.h"
00015 #include "settings_gui.h"
00016 #include "textbuf_gui.h"
00017 #include "command_func.h"
00018 #include "screenshot.h"
00019 #include "network/network.h"
00020 #include "town.h"
00021 #include "settings_internal.h"
00022 #include "newgrf_townname.h"
00023 #include "strings_func.h"
00024 #include "window_func.h"
00025 #include "string_func.h"
00026 #include "widgets/dropdown_type.h"
00027 #include "widgets/dropdown_func.h"
00028 #include "highscore.h"
00029 #include "base_media_base.h"
00030 #include "company_base.h"
00031 #include "company_func.h"
00032 #include "viewport_func.h"
00033 #include "core/geometry_func.hpp"
00034 #include "ai/ai.hpp"
00035 #include "blitter/factory.hpp"
00036 #include "language.h"
00037 #include "textfile_gui.h"
00038 #include "stringfilter_type.h"
00039 #include "querystring_gui.h"
00040 
00041 
00042 static const StringID _units_dropdown[] = {
00043   STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,
00044   STR_GAME_OPTIONS_MEASURING_UNITS_METRIC,
00045   STR_GAME_OPTIONS_MEASURING_UNITS_SI,
00046   INVALID_STRING_ID
00047 };
00048 
00049 static const StringID _driveside_dropdown[] = {
00050   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT,
00051   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_RIGHT,
00052   INVALID_STRING_ID
00053 };
00054 
00055 static const StringID _autosave_dropdown[] = {
00056   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
00057   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_MONTH,
00058   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_3_MONTHS,
00059   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_6_MONTHS,
00060   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_12_MONTHS,
00061   INVALID_STRING_ID,
00062 };
00063 
00064 int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1; 
00065 static StringID *_grf_names = NULL; 
00066 static int _nb_grf_names = 0;       
00067 
00068 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd);
00069 
00071 void InitGRFTownGeneratorNames()
00072 {
00073   free(_grf_names);
00074   _grf_names = GetGRFTownNameList();
00075   _nb_grf_names = 0;
00076   for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;
00077 }
00078 
00084 static inline StringID TownName(int town_name)
00085 {
00086   if (town_name < _nb_orig_names) return STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + town_name;
00087   town_name -= _nb_orig_names;
00088   if (town_name < _nb_grf_names) return _grf_names[town_name];
00089   return STR_UNDEFINED;
00090 }
00091 
00096 static int GetCurRes()
00097 {
00098   int i;
00099 
00100   for (i = 0; i != _num_resolutions; i++) {
00101     if ((int)_resolutions[i].width == _screen.width &&
00102         (int)_resolutions[i].height == _screen.height) {
00103       break;
00104     }
00105   }
00106   return i;
00107 }
00108 
00109 static void ShowCustCurrency();
00110 
00111 template <class T>
00112 static DropDownList *BuiltSetDropDownList(int *selected_index)
00113 {
00114   int n = T::GetNumSets();
00115   *selected_index = T::GetIndexOfUsedSet();
00116 
00117   DropDownList *list = new DropDownList();
00118   for (int i = 0; i < n; i++) {
00119     list->push_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, (_game_mode == GM_MENU) ? false : (*selected_index != i)));
00120   }
00121 
00122   return list;
00123 }
00124 
00126 template <class TBaseSet>
00127 struct BaseSetTextfileWindow : public TextfileWindow {
00128   const TBaseSet* baseset; 
00129   StringID content_type;   
00130 
00131   BaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type) : TextfileWindow(file_type), baseset(baseset), content_type(content_type)
00132   {
00133     const char *textfile = this->baseset->GetTextfile(file_type);
00134     this->LoadTextfile(textfile, BASESET_DIR);
00135   }
00136 
00137   /* virtual */ void SetStringParameters(int widget) const
00138   {
00139     if (widget == WID_TF_CAPTION) {
00140       SetDParam(0, content_type);
00141       SetDParamStr(1, this->baseset->name);
00142     }
00143   }
00144 };
00145 
00152 template <class TBaseSet>
00153 void ShowBaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type)
00154 {
00155   DeleteWindowByClass(WC_TEXTFILE);
00156   new BaseSetTextfileWindow<TBaseSet>(file_type, baseset, content_type);
00157 }
00158 
00159 struct GameOptionsWindow : Window {
00160   GameSettings *opt;
00161   bool reload;
00162 
00163   GameOptionsWindow(const WindowDesc *desc) : Window()
00164   {
00165     this->opt = &GetGameSettings();
00166     this->reload = false;
00167 
00168     this->InitNested(desc, WN_GAME_OPTIONS_GAME_OPTIONS);
00169     this->OnInvalidateData(0);
00170   }
00171 
00172   ~GameOptionsWindow()
00173   {
00174     DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
00175     if (this->reload) _switch_mode = SM_MENU;
00176   }
00177 
00184   DropDownList *BuildDropDownList(int widget, int *selected_index) const
00185   {
00186     DropDownList *list = NULL;
00187     switch (widget) {
00188       case WID_GO_CURRENCY_DROPDOWN: { // Setup currencies dropdown
00189         list = new DropDownList();
00190         *selected_index = this->opt->locale.currency;
00191         StringID *items = BuildCurrencyDropdown();
00192         uint64 disabled = _game_mode == GM_MENU ? 0LL : ~GetMaskOfAllowedCurrencies();
00193 
00194         /* Add non-custom currencies; sorted naturally */
00195         for (uint i = 0; i < CURRENCY_END; items++, i++) {
00196           if (i == CURRENCY_CUSTOM) continue;
00197           list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
00198         }
00199         list->sort(DropDownListStringItem::NatSortFunc);
00200 
00201         /* Append custom currency at the end */
00202         list->push_back(new DropDownListItem(-1, false)); // separator line
00203         list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_CURRENCY_CUSTOM, CURRENCY_CUSTOM, HasBit(disabled, CURRENCY_CUSTOM)));
00204         break;
00205       }
00206 
00207       case WID_GO_DISTANCE_DROPDOWN: { // Setup distance unit dropdown
00208         list = new DropDownList();
00209         *selected_index = this->opt->locale.units;
00210         const StringID *items = _units_dropdown;
00211         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00212           list->push_back(new DropDownListStringItem(*items, i, false));
00213         }
00214         break;
00215       }
00216 
00217       case WID_GO_ROADSIDE_DROPDOWN: { // Setup road-side dropdown
00218         list = new DropDownList();
00219         *selected_index = this->opt->vehicle.road_side;
00220         const StringID *items = _driveside_dropdown;
00221         uint disabled = 0;
00222 
00223         /* You can only change the drive side if you are in the menu or ingame with
00224          * no vehicles present. In a networking game only the server can change it */
00225         extern bool RoadVehiclesAreBuilt();
00226         if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server)) {
00227           disabled = ~(1 << this->opt->vehicle.road_side); // disable the other value
00228         }
00229 
00230         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00231           list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
00232         }
00233         break;
00234       }
00235 
00236       case WID_GO_TOWNNAME_DROPDOWN: { // Setup townname dropdown
00237         list = new DropDownList();
00238         *selected_index = this->opt->game_creation.town_name;
00239 
00240         int enabled_item = (_game_mode == GM_MENU || Town::GetNumItems() == 0) ? -1 : *selected_index;
00241 
00242         /* Add and sort original townnames generators */
00243         for (int i = 0; i < _nb_orig_names; i++) {
00244           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + i, i, enabled_item != i && enabled_item >= 0));
00245         }
00246         list->sort(DropDownListStringItem::NatSortFunc);
00247 
00248         /* Add and sort newgrf townnames generators */
00249         DropDownList newgrf_names;
00250         for (int i = 0; i < _nb_grf_names; i++) {
00251           int result = _nb_orig_names + i;
00252           newgrf_names.push_back(new DropDownListStringItem(_grf_names[i], result, enabled_item != result && enabled_item >= 0));
00253         }
00254         newgrf_names.sort(DropDownListStringItem::NatSortFunc);
00255 
00256         /* Insert newgrf_names at the top of the list */
00257         if (newgrf_names.size() > 0) {
00258           newgrf_names.push_back(new DropDownListItem(-1, false)); // separator line
00259           list->splice(list->begin(), newgrf_names);
00260         }
00261         break;
00262       }
00263 
00264       case WID_GO_AUTOSAVE_DROPDOWN: { // Setup autosave dropdown
00265         list = new DropDownList();
00266         *selected_index = _settings_client.gui.autosave;
00267         const StringID *items = _autosave_dropdown;
00268         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00269           list->push_back(new DropDownListStringItem(*items, i, false));
00270         }
00271         break;
00272       }
00273 
00274       case WID_GO_LANG_DROPDOWN: { // Setup interface language dropdown
00275         list = new DropDownList();
00276         for (uint i = 0; i < _languages.Length(); i++) {
00277           if (&_languages[i] == _current_language) *selected_index = i;
00278           list->push_back(new DropDownListStringItem(SPECSTR_LANGUAGE_START + i, i, false));
00279         }
00280         list->sort(DropDownListStringItem::NatSortFunc);
00281         break;
00282       }
00283 
00284       case WID_GO_RESOLUTION_DROPDOWN: // Setup resolution dropdown
00285         list = new DropDownList();
00286         *selected_index = GetCurRes();
00287         for (int i = 0; i < _num_resolutions; i++) {
00288           list->push_back(new DropDownListStringItem(SPECSTR_RESOLUTION_START + i, i, false));
00289         }
00290         break;
00291 
00292       case WID_GO_SCREENSHOT_DROPDOWN: // Setup screenshot format dropdown
00293         list = new DropDownList();
00294         *selected_index = _cur_screenshot_format;
00295         for (uint i = 0; i < _num_screenshot_formats; i++) {
00296           if (!GetScreenshotFormatSupports_32bpp(i) && BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 32) continue;
00297           list->push_back(new DropDownListStringItem(SPECSTR_SCREENSHOT_START + i, i, false));
00298         }
00299         break;
00300 
00301       case WID_GO_BASE_GRF_DROPDOWN:
00302         list = BuiltSetDropDownList<BaseGraphics>(selected_index);
00303         break;
00304 
00305       case WID_GO_BASE_SFX_DROPDOWN:
00306         list = BuiltSetDropDownList<BaseSounds>(selected_index);
00307         break;
00308 
00309       case WID_GO_BASE_MUSIC_DROPDOWN:
00310         list = BuiltSetDropDownList<BaseMusic>(selected_index);
00311         break;
00312 
00313       default:
00314         return NULL;
00315     }
00316 
00317     return list;
00318   }
00319 
00320   virtual void SetStringParameters(int widget) const
00321   {
00322     switch (widget) {
00323       case WID_GO_CURRENCY_DROPDOWN:   SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
00324       case WID_GO_DISTANCE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL + this->opt->locale.units); break;
00325       case WID_GO_ROADSIDE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT + this->opt->vehicle.road_side); break;
00326       case WID_GO_TOWNNAME_DROPDOWN:   SetDParam(0, TownName(this->opt->game_creation.town_name)); break;
00327       case WID_GO_AUTOSAVE_DROPDOWN:   SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
00328       case WID_GO_LANG_DROPDOWN:       SetDParamStr(0, _current_language->own_name); break;
00329       case WID_GO_RESOLUTION_DROPDOWN: SetDParam(0, GetCurRes() == _num_resolutions ? STR_GAME_OPTIONS_RESOLUTION_OTHER : SPECSTR_RESOLUTION_START + GetCurRes()); break;
00330       case WID_GO_SCREENSHOT_DROPDOWN: SetDParam(0, SPECSTR_SCREENSHOT_START + _cur_screenshot_format); break;
00331       case WID_GO_BASE_GRF_DROPDOWN:   SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
00332       case WID_GO_BASE_GRF_STATUS:     SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
00333       case WID_GO_BASE_SFX_DROPDOWN:   SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
00334       case WID_GO_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
00335       case WID_GO_BASE_MUSIC_STATUS:   SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
00336     }
00337   }
00338 
00339   virtual void DrawWidget(const Rect &r, int widget) const
00340   {
00341     switch (widget) {
00342       case WID_GO_BASE_GRF_DESCRIPTION:
00343         SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00344         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00345         break;
00346 
00347       case WID_GO_BASE_SFX_DESCRIPTION:
00348         SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00349         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00350         break;
00351 
00352       case WID_GO_BASE_MUSIC_DESCRIPTION:
00353         SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00354         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00355         break;
00356     }
00357   }
00358 
00359   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00360   {
00361     switch (widget) {
00362       case WID_GO_BASE_GRF_DESCRIPTION:
00363         /* Find the biggest description for the default size. */
00364         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00365           SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00366           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00367         }
00368         break;
00369 
00370       case WID_GO_BASE_GRF_STATUS:
00371         /* Find the biggest description for the default size. */
00372         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00373           uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
00374           if (invalid_files == 0) continue;
00375 
00376           SetDParam(0, invalid_files);
00377           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
00378         }
00379         break;
00380 
00381       case WID_GO_BASE_SFX_DESCRIPTION:
00382         /* Find the biggest description for the default size. */
00383         for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
00384           SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00385           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00386         }
00387         break;
00388 
00389       case WID_GO_BASE_MUSIC_DESCRIPTION:
00390         /* Find the biggest description for the default size. */
00391         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00392           SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00393           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00394         }
00395         break;
00396 
00397       case WID_GO_BASE_MUSIC_STATUS:
00398         /* Find the biggest description for the default size. */
00399         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00400           uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
00401           if (invalid_files == 0) continue;
00402 
00403           SetDParam(0, invalid_files);
00404           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
00405         }
00406         break;
00407 
00408       default: {
00409         int selected;
00410         DropDownList *list = this->BuildDropDownList(widget, &selected);
00411         if (list != NULL) {
00412           /* Find the biggest item for the default size. */
00413           for (DropDownList::iterator it = list->begin(); it != list->end(); it++) {
00414             static const Dimension extra = {WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT, WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM};
00415             Dimension string_dim;
00416             int width = (*it)->Width();
00417             string_dim.width = width + extra.width;
00418             string_dim.height = (*it)->Height(width) + extra.height;
00419             *size = maxdim(*size, string_dim);
00420             delete *it;
00421           }
00422           delete list;
00423         }
00424       }
00425     }
00426   }
00427 
00428   virtual void OnClick(Point pt, int widget, int click_count)
00429   {
00430     if (widget >= WID_GO_BASE_GRF_TEXTFILE && widget < WID_GO_BASE_GRF_TEXTFILE + TFT_END) {
00431       if (BaseGraphics::GetUsedSet() == NULL) return;
00432 
00433       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_GRF_TEXTFILE), BaseGraphics::GetUsedSet(), STR_CONTENT_TYPE_BASE_GRAPHICS);
00434       return;
00435     }
00436     if (widget >= WID_GO_BASE_SFX_TEXTFILE && widget < WID_GO_BASE_SFX_TEXTFILE + TFT_END) {
00437       if (BaseSounds::GetUsedSet() == NULL) return;
00438 
00439       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_SFX_TEXTFILE), BaseSounds::GetUsedSet(), STR_CONTENT_TYPE_BASE_SOUNDS);
00440       return;
00441     }
00442     if (widget >= WID_GO_BASE_MUSIC_TEXTFILE && widget < WID_GO_BASE_MUSIC_TEXTFILE + TFT_END) {
00443       if (BaseMusic::GetUsedSet() == NULL) return;
00444 
00445       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_MUSIC_TEXTFILE), BaseMusic::GetUsedSet(), STR_CONTENT_TYPE_BASE_MUSIC);
00446       return;
00447     }
00448     switch (widget) {
00449       case WID_GO_FULLSCREEN_BUTTON: // Click fullscreen on/off
00450         /* try to toggle full-screen on/off */
00451         if (!ToggleFullScreen(!_fullscreen)) {
00452           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
00453         }
00454         this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00455         this->SetDirty();
00456         break;
00457 
00458       default: {
00459         int selected;
00460         DropDownList *list = this->BuildDropDownList(widget, &selected);
00461         if (list != NULL) {
00462           ShowDropDownList(this, list, selected, widget);
00463         }
00464         break;
00465       }
00466     }
00467   }
00468 
00474   template <class T>
00475   void SetMediaSet(int index)
00476   {
00477     if (_game_mode == GM_MENU) {
00478       const char *name = T::GetSet(index)->name;
00479 
00480       free(T::ini_set);
00481       T::ini_set = strdup(name);
00482 
00483       T::SetSet(name);
00484       this->reload = true;
00485       this->InvalidateData();
00486     }
00487   }
00488 
00489   virtual void OnDropdownSelect(int widget, int index)
00490   {
00491     switch (widget) {
00492       case WID_GO_CURRENCY_DROPDOWN: // Currency
00493         if (index == CURRENCY_CUSTOM) ShowCustCurrency();
00494         this->opt->locale.currency = index;
00495         ReInitAllWindows();
00496         break;
00497 
00498       case WID_GO_DISTANCE_DROPDOWN: // Measuring units
00499         this->opt->locale.units = index;
00500         MarkWholeScreenDirty();
00501         break;
00502 
00503       case WID_GO_ROADSIDE_DROPDOWN: // Road side
00504         if (this->opt->vehicle.road_side != index) { // only change if setting changed
00505           uint i;
00506           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
00507           SetSettingValue(i, index);
00508           MarkWholeScreenDirty();
00509         }
00510         break;
00511 
00512       case WID_GO_TOWNNAME_DROPDOWN: // Town names
00513         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
00514           this->opt->game_creation.town_name = index;
00515           SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_GAME_OPTIONS);
00516         }
00517         break;
00518 
00519       case WID_GO_AUTOSAVE_DROPDOWN: // Autosave options
00520         _settings_client.gui.autosave = index;
00521         this->SetDirty();
00522         break;
00523 
00524       case WID_GO_LANG_DROPDOWN: // Change interface language
00525         ReadLanguagePack(&_languages[index]);
00526         DeleteWindowByClass(WC_QUERY_STRING);
00527         CheckForMissingGlyphs();
00528         UpdateAllVirtCoords();
00529         ReInitAllWindows();
00530         break;
00531 
00532       case WID_GO_RESOLUTION_DROPDOWN: // Change resolution
00533         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
00534           this->SetDirty();
00535         }
00536         break;
00537 
00538       case WID_GO_SCREENSHOT_DROPDOWN: // Change screenshot format
00539         SetScreenshotFormat(index);
00540         this->SetDirty();
00541         break;
00542 
00543       case WID_GO_BASE_GRF_DROPDOWN:
00544         this->SetMediaSet<BaseGraphics>(index);
00545         break;
00546 
00547       case WID_GO_BASE_SFX_DROPDOWN:
00548         this->SetMediaSet<BaseSounds>(index);
00549         break;
00550 
00551       case WID_GO_BASE_MUSIC_DROPDOWN:
00552         this->SetMediaSet<BaseMusic>(index);
00553         break;
00554     }
00555   }
00556 
00562   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00563   {
00564     if (!gui_scope) return;
00565     this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00566 
00567     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
00568     this->GetWidget<NWidgetCore>(WID_GO_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
00569 
00570     for (TextfileType tft = TFT_BEGIN; tft < TFT_END; tft++) {
00571       this->SetWidgetDisabledState(WID_GO_BASE_GRF_TEXTFILE + tft, BaseGraphics::GetUsedSet() == NULL || BaseGraphics::GetUsedSet()->GetTextfile(tft) == NULL);
00572       this->SetWidgetDisabledState(WID_GO_BASE_SFX_TEXTFILE + tft, BaseSounds::GetUsedSet() == NULL || BaseSounds::GetUsedSet()->GetTextfile(tft) == NULL);
00573       this->SetWidgetDisabledState(WID_GO_BASE_MUSIC_TEXTFILE + tft, BaseMusic::GetUsedSet() == NULL || BaseMusic::GetUsedSet()->GetTextfile(tft) == NULL);
00574     }
00575 
00576     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
00577     this->GetWidget<NWidgetCore>(WID_GO_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
00578   }
00579 };
00580 
00581 static const NWidgetPart _nested_game_options_widgets[] = {
00582   NWidget(NWID_HORIZONTAL),
00583     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00584     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00585   EndContainer(),
00586   NWidget(WWT_PANEL, COLOUR_GREY, WID_GO_BACKGROUND), SetPIP(6, 6, 10),
00587     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
00588       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00589         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
00590           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_CURRENCY_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00591         EndContainer(),
00592         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
00593           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_ROADSIDE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00594         EndContainer(),
00595         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
00596           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
00597         EndContainer(),
00598         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
00599           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_RESOLUTION_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP), SetFill(1, 0), SetPadding(0, 0, 3, 0),
00600           NWidget(NWID_HORIZONTAL),
00601             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
00602             NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
00603           EndContainer(),
00604         EndContainer(),
00605       EndContainer(),
00606 
00607       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00608         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
00609           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_DISTANCE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_MEASURING_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00610         EndContainer(),
00611         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
00612           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_TOWNNAME_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_TOWN_NAMES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00613         EndContainer(),
00614         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
00615           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
00616         EndContainer(),
00617         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
00618           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_SCREENSHOT_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_SCREENSHOT_FORMAT_TOOLTIP), SetFill(1, 0),
00619         EndContainer(),
00620         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
00621       EndContainer(),
00622     EndContainer(),
00623 
00624     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
00625       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00626         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
00627         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00628       EndContainer(),
00629       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_GRF_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00630       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00631         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00632         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00633         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00634       EndContainer(),
00635     EndContainer(),
00636 
00637     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
00638       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00639         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
00640         NWidget(NWID_SPACER), SetFill(1, 0),
00641       EndContainer(),
00642       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_SFX_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_SFX_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00643       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00644         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00645         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00646         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00647       EndContainer(),
00648     EndContainer(),
00649 
00650     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
00651       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00652         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
00653         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00654       EndContainer(),
00655       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00656       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00657         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00658         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00659         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00660       EndContainer(),
00661     EndContainer(),
00662   EndContainer(),
00663 };
00664 
00665 static const WindowDesc _game_options_desc(
00666   WDP_CENTER, 0, 0,
00667   WC_GAME_OPTIONS, WC_NONE,
00668   0,
00669   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
00670 );
00671 
00673 void ShowGameOptions()
00674 {
00675   DeleteWindowByClass(WC_GAME_OPTIONS);
00676   new GameOptionsWindow(&_game_options_desc);
00677 }
00678 
00679 static int SETTING_HEIGHT = 11;    
00680 static const int LEVEL_WIDTH = 15; 
00681 
00686 enum SettingEntryFlags {
00687   SEF_LEFT_DEPRESSED  = 0x01, 
00688   SEF_RIGHT_DEPRESSED = 0x02, 
00689   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), 
00690 
00691   SEF_LAST_FIELD = 0x04, 
00692   SEF_FILTERED   = 0x08, 
00693 
00694   /* Entry kind */
00695   SEF_SETTING_KIND = 0x10, 
00696   SEF_SUBTREE_KIND = 0x20, 
00697   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND), 
00698 };
00699 
00700 struct SettingsPage; // Forward declaration
00701 
00703 struct SettingEntrySubtree {
00704   SettingsPage *page; 
00705   bool folded;        
00706   StringID title;     
00707 };
00708 
00710 struct SettingEntrySetting {
00711   const char *name;           
00712   const SettingDesc *setting; 
00713   uint index;                 
00714 };
00715 
00717 enum RestrictionMode {
00718   RM_BASIC,                            
00719   RM_ADVANCED,                         
00720   RM_ALL,                              
00721   RM_CHANGED_AGAINST_DEFAULT,          
00722   RM_CHANGED_AGAINST_NEW,              
00723   RM_END,                              
00724 };
00725 
00727 struct SettingFilter {
00728   StringFilter string;     
00729   RestrictionMode mode;    
00730   SettingType type;       
00731 };
00732 
00734 struct SettingEntry {
00735   byte flags; 
00736   byte level; 
00737   union {
00738     SettingEntrySetting entry; 
00739     SettingEntrySubtree sub;   
00740   } d; 
00741 
00742   SettingEntry(const char *nm);
00743   SettingEntry(SettingsPage *sub, StringID title);
00744 
00745   void Init(byte level);
00746   void FoldAll();
00747   void UnFoldAll();
00748   void SetButtons(byte new_val);
00749 
00754   void SetLastField(bool last_field) { if (last_field) SETBITS(this->flags, SEF_LAST_FIELD); else CLRBITS(this->flags, SEF_LAST_FIELD); }
00755 
00756   uint Length() const;
00757   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
00758   bool IsVisible(const SettingEntry *item) const;
00759   SettingEntry *FindEntry(uint row, uint *cur_row);
00760   uint GetMaxHelpHeight(int maxw);
00761 
00762   bool IsFiltered() const;
00763   bool UpdateFilterState(SettingFilter &filter, bool force_visible);
00764 
00765   uint Draw(GameSettings *settings_ptr, int base_x, int base_y, int max_x, uint first_row, uint max_row, uint cur_row, uint parent_last, SettingEntry *selected);
00766 
00771   inline StringID GetHelpText()
00772   {
00773     assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
00774     return this->d.entry.setting->desc.str_help;
00775   }
00776 
00777   void SetValueDParams(uint first_param, int32 value);
00778 
00779 private:
00780   void DrawSetting(GameSettings *settings_ptr, int x, int y, int max_x, int state, bool highlight);
00781   bool IsVisibleByRestrictionMode(RestrictionMode mode) const;
00782 };
00783 
00785 struct SettingsPage {
00786   SettingEntry *entries; 
00787   byte num;              
00788 
00789   void Init(byte level = 0);
00790   void FoldAll();
00791   void UnFoldAll();
00792 
00793   uint Length() const;
00794   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
00795   bool IsVisible(const SettingEntry *item) const;
00796   SettingEntry *FindEntry(uint row, uint *cur_row) const;
00797   uint GetMaxHelpHeight(int maxw);
00798 
00799   bool UpdateFilterState(SettingFilter &filter, bool force_visible);
00800 
00801   uint Draw(GameSettings *settings_ptr, int base_x, int base_y, int max_x, uint first_row, uint max_row, SettingEntry *selected, uint cur_row = 0, uint parent_last = 0) const;
00802 };
00803 
00804 
00805 /* == SettingEntry methods == */
00806 
00811 SettingEntry::SettingEntry(const char *nm)
00812 {
00813   this->flags = SEF_SETTING_KIND;
00814   this->level = 0;
00815   this->d.entry.name = nm;
00816   this->d.entry.setting = NULL;
00817   this->d.entry.index = 0;
00818 }
00819 
00825 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
00826 {
00827   this->flags = SEF_SUBTREE_KIND;
00828   this->level = 0;
00829   this->d.sub.page = sub;
00830   this->d.sub.folded = true;
00831   this->d.sub.title = title;
00832 }
00833 
00838 void SettingEntry::Init(byte level)
00839 {
00840   this->level = level;
00841 
00842   switch (this->flags & SEF_KIND_MASK) {
00843     case SEF_SETTING_KIND:
00844       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
00845       assert(this->d.entry.setting != NULL);
00846       break;
00847     case SEF_SUBTREE_KIND:
00848       this->d.sub.page->Init(level + 1);
00849       break;
00850     default: NOT_REACHED();
00851   }
00852 }
00853 
00855 void SettingEntry::FoldAll()
00856 {
00857   if (this->IsFiltered()) return;
00858   switch (this->flags & SEF_KIND_MASK) {
00859     case SEF_SETTING_KIND:
00860       break;
00861 
00862     case SEF_SUBTREE_KIND:
00863       this->d.sub.folded = true;
00864       this->d.sub.page->FoldAll();
00865       break;
00866 
00867     default: NOT_REACHED();
00868   }
00869 }
00870 
00872 void SettingEntry::UnFoldAll()
00873 {
00874   if (this->IsFiltered()) return;
00875   switch (this->flags & SEF_KIND_MASK) {
00876     case SEF_SETTING_KIND:
00877       break;
00878 
00879     case SEF_SUBTREE_KIND:
00880       this->d.sub.folded = false;
00881       this->d.sub.page->UnFoldAll();
00882       break;
00883 
00884     default: NOT_REACHED();
00885   }
00886 }
00887 
00893 void SettingEntry::GetFoldingState(bool &all_folded, bool &all_unfolded) const
00894 {
00895   if (this->IsFiltered()) return;
00896   switch (this->flags & SEF_KIND_MASK) {
00897     case SEF_SETTING_KIND:
00898       break;
00899 
00900     case SEF_SUBTREE_KIND:
00901       if (this->d.sub.folded) {
00902         all_unfolded = false;
00903       } else {
00904         all_folded = false;
00905       }
00906       this->d.sub.page->GetFoldingState(all_folded, all_unfolded);
00907       break;
00908 
00909     default: NOT_REACHED();
00910   }
00911 }
00912 
00919 bool SettingEntry::IsVisible(const SettingEntry *item) const
00920 {
00921   if (this->IsFiltered()) return false;
00922   if (this == item) return true;
00923 
00924   switch (this->flags & SEF_KIND_MASK) {
00925     case SEF_SETTING_KIND:
00926       return false;
00927 
00928     case SEF_SUBTREE_KIND:
00929       return !this->d.sub.folded && this->d.sub.page->IsVisible(item);
00930 
00931     default: NOT_REACHED();
00932   }
00933 }
00934 
00940 void SettingEntry::SetButtons(byte new_val)
00941 {
00942   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
00943   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
00944 }
00945 
00947 uint SettingEntry::Length() const
00948 {
00949   if (this->IsFiltered()) return 0;
00950   switch (this->flags & SEF_KIND_MASK) {
00951     case SEF_SETTING_KIND:
00952       return 1;
00953     case SEF_SUBTREE_KIND:
00954       if (this->d.sub.folded) return 1; // Only displaying the title
00955 
00956       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
00957     default: NOT_REACHED();
00958   }
00959 }
00960 
00967 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
00968 {
00969   if (this->IsFiltered()) return NULL;
00970   if (row_num == *cur_row) return this;
00971 
00972   switch (this->flags & SEF_KIND_MASK) {
00973     case SEF_SETTING_KIND:
00974       (*cur_row)++;
00975       break;
00976     case SEF_SUBTREE_KIND:
00977       (*cur_row)++; // add one for row containing the title
00978       if (this->d.sub.folded) {
00979         break;
00980       }
00981 
00982       /* sub-page is visible => search it too */
00983       return this->d.sub.page->FindEntry(row_num, cur_row);
00984     default: NOT_REACHED();
00985   }
00986   return NULL;
00987 }
00988 
00994 uint SettingEntry::GetMaxHelpHeight(int maxw)
00995 {
00996   switch (this->flags & SEF_KIND_MASK) {
00997     case SEF_SETTING_KIND: return GetStringHeight(this->GetHelpText(), maxw);
00998     case SEF_SUBTREE_KIND: return this->d.sub.page->GetMaxHelpHeight(maxw);
00999     default:               NOT_REACHED();
01000   }
01001 }
01002 
01007 bool SettingEntry::IsFiltered() const
01008 {
01009   return (this->flags & SEF_FILTERED) != 0;
01010 }
01011 
01017 bool SettingEntry::IsVisibleByRestrictionMode(RestrictionMode mode) const
01018 {
01019   /* There shall not be any restriction, i.e. all settings shall be visible. */
01020   if (mode == RM_ALL) return true;
01021 
01022   GameSettings *settings_ptr = &GetGameSettings();
01023   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01024   const SettingDesc *sd = this->d.entry.setting;
01025 
01026   if (mode == RM_BASIC) return (this->d.entry.setting->desc.cat & SC_BASIC_LIST) != 0;
01027   if (mode == RM_ADVANCED) return (this->d.entry.setting->desc.cat & SC_ADVANCED_LIST) != 0;
01028 
01029   /* Read the current value. */
01030   const void *var = ResolveVariableAddress(settings_ptr, sd);
01031   int64 current_value = ReadValue(var, sd->save.conv);
01032 
01033   int64 filter_value;
01034 
01035   if (mode == RM_CHANGED_AGAINST_DEFAULT) {
01036     /* This entry shall only be visible, if the value deviates from its default value. */
01037 
01038     /* Read the default value. */
01039     filter_value = ReadValue(&sd->desc.def, sd->save.conv);
01040   } else {
01041     assert(mode == RM_CHANGED_AGAINST_NEW);
01042     /* This entry shall only be visible, if the value deviates from
01043      * its value is used when starting a new game. */
01044 
01045     /* Make sure we're not comparing the new game settings against itself. */
01046     assert(settings_ptr != &_settings_newgame);
01047 
01048     /* Read the new game's value. */
01049     var = ResolveVariableAddress(&_settings_newgame, sd);
01050     filter_value = ReadValue(var, sd->save.conv);
01051   }
01052 
01053   return current_value != filter_value;
01054 }
01055 
01062 bool SettingEntry::UpdateFilterState(SettingFilter &filter, bool force_visible)
01063 {
01064   CLRBITS(this->flags, SEF_FILTERED);
01065 
01066   bool visible = true;
01067   switch (this->flags & SEF_KIND_MASK) {
01068     case SEF_SETTING_KIND: {
01069       const SettingDesc *sd = this->d.entry.setting;
01070       if (!force_visible && !filter.string.IsEmpty()) {
01071         /* Process the search text filter for this item. */
01072         filter.string.ResetState();
01073 
01074         const SettingDescBase *sdb = &sd->desc;
01075 
01076         SetDParam(0, STR_EMPTY);
01077         filter.string.AddLine(sdb->str);
01078         filter.string.AddLine(this->GetHelpText());
01079 
01080         visible = filter.string.GetState();
01081       }
01082       if (filter.type != ST_ALL) visible = visible && sd->GetType() == filter.type;
01083       visible = visible && this->IsVisibleByRestrictionMode(filter.mode);
01084       break;
01085     }
01086     case SEF_SUBTREE_KIND: {
01087       if (!force_visible && !filter.string.IsEmpty()) {
01088         filter.string.ResetState();
01089         filter.string.AddLine(this->d.sub.title);
01090         force_visible = filter.string.GetState();
01091       }
01092       visible = this->d.sub.page->UpdateFilterState(filter, force_visible);
01093       break;
01094     }
01095     default: NOT_REACHED();
01096   }
01097 
01098   if (!visible) SETBITS(this->flags, SEF_FILTERED);
01099   return visible;
01100 }
01101 
01102 
01103 
01131 uint SettingEntry::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, uint cur_row, uint parent_last, SettingEntry *selected)
01132 {
01133   if (this->IsFiltered()) return cur_row;
01134   if (cur_row >= max_row) return cur_row;
01135 
01136   bool rtl = _current_text_dir == TD_RTL;
01137   int offset = rtl ? -4 : 4;
01138   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
01139 
01140   int x = rtl ? right : left;
01141   int y = base_y;
01142   if (cur_row >= first_row) {
01143     int colour = _colour_gradient[COLOUR_ORANGE][4];
01144     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
01145 
01146     /* Draw vertical for parent nesting levels */
01147     for (uint lvl = 0; lvl < this->level; lvl++) {
01148       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
01149       x += level_width;
01150     }
01151     /* draw own |- prefix */
01152     int halfway_y = y + SETTING_HEIGHT / 2;
01153     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
01154     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
01155     /* Small horizontal line from the last vertical line */
01156     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
01157     x += level_width;
01158   }
01159 
01160   switch (this->flags & SEF_KIND_MASK) {
01161     case SEF_SETTING_KIND:
01162       if (cur_row >= first_row) {
01163         this->DrawSetting(settings_ptr, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK,
01164             this == selected);
01165       }
01166       cur_row++;
01167       break;
01168     case SEF_SUBTREE_KIND:
01169       if (cur_row >= first_row) {
01170         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
01171         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
01172       }
01173       cur_row++;
01174       if (!this->d.sub.folded) {
01175         if (this->flags & SEF_LAST_FIELD) {
01176           assert(this->level < sizeof(parent_last));
01177           SetBit(parent_last, this->level); // Add own last-field state
01178         }
01179 
01180         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, selected, cur_row, parent_last);
01181       }
01182       break;
01183     default: NOT_REACHED();
01184   }
01185   return cur_row;
01186 }
01187 
01188 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
01189 {
01190   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01191     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01192       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
01193     } else {
01194       return GetVariableAddress(&_settings_client.company, &sd->save);
01195     }
01196   } else {
01197     return GetVariableAddress(settings_ptr, &sd->save);
01198   }
01199 }
01200 
01206 void SettingEntry::SetValueDParams(uint first_param, int32 value)
01207 {
01208   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01209   const SettingDescBase *sdb = &this->d.entry.setting->desc;
01210   if (sdb->cmd == SDT_BOOLX) {
01211     SetDParam(first_param++, value != 0 ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
01212   } else {
01213     if ((sdb->flags & SGF_MULTISTRING) != 0) {
01214       SetDParam(first_param++, sdb->str_val - sdb->min + value);
01215     } else if ((sdb->flags & SGF_DISPLAY_ABS) != 0) {
01216       SetDParam(first_param++, sdb->str_val + ((value >= 0) ? 1 : 0));
01217       value = abs(value);
01218     } else {
01219       SetDParam(first_param++, sdb->str_val + ((value == 0 && (sdb->flags & SGF_0ISDISABLED) != 0) ? 1 : 0));
01220     }
01221     SetDParam(first_param++, value);
01222   }
01223 }
01224 
01234 void SettingEntry::DrawSetting(GameSettings *settings_ptr, int left, int right, int y, int state, bool highlight)
01235 {
01236   const SettingDesc *sd = this->d.entry.setting;
01237   const SettingDescBase *sdb = &sd->desc;
01238   const void *var = ResolveVariableAddress(settings_ptr, sd);
01239 
01240   bool rtl = _current_text_dir == TD_RTL;
01241   uint buttons_left = rtl ? right + 1 - SETTING_BUTTON_WIDTH : left;
01242   uint text_left  = left + (rtl ? 0 : SETTING_BUTTON_WIDTH + 5);
01243   uint text_right = right - (rtl ? SETTING_BUTTON_WIDTH + 5 : 0);
01244   uint button_y = y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
01245 
01246   /* We do not allow changes of some items when we are a client in a networkgame */
01247   bool editable = sd->IsEditable();
01248 
01249   SetDParam(0, highlight ? STR_ORANGE_STRING1_WHITE : STR_ORANGE_STRING1_LTBLUE);
01250   int32 value = (int32)ReadValue(var, sd->save.conv);
01251   if (sdb->cmd == SDT_BOOLX) {
01252     /* Draw checkbox for boolean-value either on/off */
01253     DrawBoolButton(buttons_left, button_y, value != 0, editable);
01254   } else if ((sdb->flags & SGF_MULTISTRING) != 0) {
01255     /* Draw [v] button for settings of an enum-type */
01256     DrawDropDownButton(buttons_left, button_y, COLOUR_YELLOW, state != 0, editable);
01257   } else {
01258     /* Draw [<][>] boxes for settings of an integer-type */
01259     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state,
01260         editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
01261   }
01262   this->SetValueDParams(1, value);
01263   DrawString(text_left, text_right, y, sdb->str, highlight ? TC_WHITE : TC_LIGHT_BLUE);
01264 }
01265 
01266 
01267 /* == SettingsPage methods == */
01268 
01273 void SettingsPage::Init(byte level)
01274 {
01275   for (uint field = 0; field < this->num; field++) {
01276     this->entries[field].Init(level);
01277   }
01278 }
01279 
01281 void SettingsPage::FoldAll()
01282 {
01283   for (uint field = 0; field < this->num; field++) {
01284     this->entries[field].FoldAll();
01285   }
01286 }
01287 
01289 void SettingsPage::UnFoldAll()
01290 {
01291   for (uint field = 0; field < this->num; field++) {
01292     this->entries[field].UnFoldAll();
01293   }
01294 }
01295 
01301 void SettingsPage::GetFoldingState(bool &all_folded, bool &all_unfolded) const
01302 {
01303   for (uint field = 0; field < this->num; field++) {
01304     this->entries[field].GetFoldingState(all_folded, all_unfolded);
01305   }
01306 }
01307 
01314 bool SettingsPage::UpdateFilterState(SettingFilter &filter, bool force_visible)
01315 {
01316   bool visible = false;
01317   bool first_visible = true;
01318   for (int field = this->num - 1; field >= 0; field--) {
01319     visible |= this->entries[field].UpdateFilterState(filter, force_visible);
01320     this->entries[field].SetLastField(first_visible);
01321     if (visible && first_visible) first_visible = false;
01322   }
01323   return visible;
01324 }
01325 
01326 
01333 bool SettingsPage::IsVisible(const SettingEntry *item) const
01334 {
01335   for (uint field = 0; field < this->num; field++) {
01336     if (this->entries[field].IsVisible(item)) return true;
01337   }
01338   return false;
01339 }
01340 
01342 uint SettingsPage::Length() const
01343 {
01344   uint length = 0;
01345   for (uint field = 0; field < this->num; field++) {
01346     length += this->entries[field].Length();
01347   }
01348   return length;
01349 }
01350 
01357 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
01358 {
01359   SettingEntry *pe = NULL;
01360 
01361   for (uint field = 0; field < this->num; field++) {
01362     pe = this->entries[field].FindEntry(row_num, cur_row);
01363     if (pe != NULL) {
01364       break;
01365     }
01366   }
01367   return pe;
01368 }
01369 
01375 uint SettingsPage::GetMaxHelpHeight(int maxw)
01376 {
01377   uint biggest = 0;
01378   for (uint field = 0; field < this->num; field++) {
01379     biggest = max(biggest, this->entries[field].GetMaxHelpHeight(maxw));
01380   }
01381   return biggest;
01382 }
01383 
01402 uint SettingsPage::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, SettingEntry *selected, uint cur_row, uint parent_last) const
01403 {
01404   if (cur_row >= max_row) return cur_row;
01405 
01406   for (uint i = 0; i < this->num; i++) {
01407     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last, selected);
01408     if (cur_row >= max_row) {
01409       break;
01410     }
01411   }
01412   return cur_row;
01413 }
01414 
01415 
01416 static SettingEntry _settings_ui_display[] = {
01417   SettingEntry("gui.date_format_in_default_names"),
01418   SettingEntry("gui.population_in_label"),
01419   SettingEntry("gui.measure_tooltip"),
01420   SettingEntry("gui.loading_indicators"),
01421   SettingEntry("gui.liveries"),
01422   SettingEntry("gui.show_track_reservation"),
01423   SettingEntry("gui.expenses_layout"),
01424   SettingEntry("gui.smallmap_land_colour"),
01425   SettingEntry("gui.zoom_min"),
01426   SettingEntry("gui.zoom_max"),
01427   SettingEntry("gui.graph_line_thickness"),
01428 };
01430 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
01431 
01432 static SettingEntry _settings_ui_interaction[] = {
01433   SettingEntry("gui.window_snap_radius"),
01434   SettingEntry("gui.window_soft_limit"),
01435   SettingEntry("gui.link_terraform_toolbar"),
01436   SettingEntry("gui.prefer_teamchat"),
01437   SettingEntry("gui.auto_scrolling"),
01438   SettingEntry("gui.reverse_scroll"),
01439   SettingEntry("gui.smooth_scroll"),
01440   SettingEntry("gui.left_mouse_btn_scrolling"),
01441   /* While the horizontal scrollwheel scrolling is written as general code, only
01442    *  the cocoa (OSX) driver generates input for it.
01443    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
01444   SettingEntry("gui.scrollwheel_scrolling"),
01445   SettingEntry("gui.scrollwheel_multiplier"),
01446   SettingEntry("gui.osk_activation"),
01447 #ifdef __APPLE__
01448   /* We might need to emulate a right mouse button on mac */
01449   SettingEntry("gui.right_mouse_btn_emulation"),
01450 #endif
01451 };
01453 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
01454 
01455 static SettingEntry _settings_ui_sound[] = {
01456   SettingEntry("sound.click_beep"),
01457   SettingEntry("sound.confirm"),
01458   SettingEntry("sound.news_ticker"),
01459   SettingEntry("sound.news_full"),
01460   SettingEntry("sound.new_year"),
01461   SettingEntry("sound.disaster"),
01462   SettingEntry("sound.vehicle"),
01463   SettingEntry("sound.ambient"),
01464 };
01466 static SettingsPage _settings_ui_sound_page = {_settings_ui_sound, lengthof(_settings_ui_sound)};
01467 
01468 static SettingEntry _settings_ui_news[] = {
01469   SettingEntry("news_display.arrival_player"),
01470   SettingEntry("news_display.arrival_other"),
01471   SettingEntry("news_display.accident"),
01472   SettingEntry("news_display.company_info"),
01473   SettingEntry("news_display.open"),
01474   SettingEntry("news_display.close"),
01475   SettingEntry("news_display.economy"),
01476   SettingEntry("news_display.production_player"),
01477   SettingEntry("news_display.production_other"),
01478   SettingEntry("news_display.production_nobody"),
01479   SettingEntry("news_display.advice"),
01480   SettingEntry("news_display.new_vehicles"),
01481   SettingEntry("news_display.acceptance"),
01482   SettingEntry("news_display.subsidies"),
01483   SettingEntry("news_display.general"),
01484   SettingEntry("gui.coloured_news_year"),
01485 };
01487 static SettingsPage _settings_ui_news_page = {_settings_ui_news, lengthof(_settings_ui_news)};
01488 
01489 static SettingEntry _settings_ui[] = {
01490   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
01491   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
01492   SettingEntry(&_settings_ui_sound_page, STR_CONFIG_SETTING_SOUND),
01493   SettingEntry(&_settings_ui_news_page, STR_CONFIG_SETTING_NEWS),
01494   SettingEntry("gui.show_finances"),
01495   SettingEntry("gui.errmsg_duration"),
01496   SettingEntry("gui.hover_delay"),
01497   SettingEntry("gui.toolbar_pos"),
01498   SettingEntry("gui.statusbar_pos"),
01499   SettingEntry("gui.newgrf_default_palette"),
01500   SettingEntry("gui.pause_on_newgame"),
01501   SettingEntry("gui.advanced_vehicle_list"),
01502   SettingEntry("gui.timetable_in_ticks"),
01503   SettingEntry("gui.timetable_arrival_departure"),
01504   SettingEntry("gui.quick_goto"),
01505   SettingEntry("gui.default_rail_type"),
01506   SettingEntry("gui.disable_unsuitable_building"),
01507   SettingEntry("gui.persistent_buildingtools"),
01508 };
01510 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
01511 
01512 static SettingEntry _settings_construction_signals[] = {
01513   SettingEntry("construction.train_signal_side"),
01514   SettingEntry("gui.enable_signal_gui"),
01515   SettingEntry("gui.drag_signals_fixed_distance"),
01516   SettingEntry("gui.semaphore_build_before"),
01517   SettingEntry("gui.default_signal_type"),
01518   SettingEntry("gui.cycle_signal_types"),
01519 };
01521 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
01522 
01523 static SettingEntry _settings_construction[] = {
01524   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
01525   SettingEntry("construction.build_on_slopes"),
01526   SettingEntry("construction.autoslope"),
01527   SettingEntry("construction.extra_dynamite"),
01528   SettingEntry("construction.max_bridge_length"),
01529   SettingEntry("construction.max_tunnel_length"),
01530   SettingEntry("station.never_expire_airports"),
01531   SettingEntry("construction.freeform_edges"),
01532   SettingEntry("construction.extra_tree_placement"),
01533   SettingEntry("construction.command_pause_level"),
01534 };
01536 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
01537 
01538 static SettingEntry _settings_stations_cargo[] = {
01539   SettingEntry("order.improved_load"),
01540   SettingEntry("order.gradual_loading"),
01541   SettingEntry("order.selectgoods"),
01542 };
01544 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
01545 
01546 static SettingEntry _settings_stations[] = {
01547   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
01548   SettingEntry("station.adjacent_stations"),
01549   SettingEntry("station.distant_join_stations"),
01550   SettingEntry("station.station_spread"),
01551   SettingEntry("economy.station_noise_level"),
01552   SettingEntry("station.modified_catchment"),
01553   SettingEntry("construction.road_stop_on_town_road"),
01554   SettingEntry("construction.road_stop_on_competitor_road"),
01555 };
01557 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
01558 
01559 static SettingEntry _settings_economy_towns[] = {
01560   SettingEntry("difficulty.town_council_tolerance"),
01561   SettingEntry("economy.bribe"),
01562   SettingEntry("economy.exclusive_rights"),
01563   SettingEntry("economy.fund_roads"),
01564   SettingEntry("economy.fund_buildings"),
01565   SettingEntry("economy.town_layout"),
01566   SettingEntry("economy.allow_town_roads"),
01567   SettingEntry("economy.allow_town_level_crossings"),
01568   SettingEntry("economy.found_town"),
01569   SettingEntry("economy.mod_road_rebuild"),
01570   SettingEntry("economy.town_growth_rate"),
01571   SettingEntry("economy.larger_towns"),
01572   SettingEntry("economy.initial_city_size"),
01573 };
01575 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
01576 
01577 static SettingEntry _settings_economy_industries[] = {
01578   SettingEntry("construction.raw_industry_construction"),
01579   SettingEntry("construction.industry_platform"),
01580   SettingEntry("economy.multiple_industry_per_town"),
01581   SettingEntry("game_creation.oil_refinery_limit"),
01582 };
01584 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
01585 
01586 
01587 static SettingEntry _settings_economy[] = {
01588   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
01589   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
01590   SettingEntry("economy.inflation"),
01591   SettingEntry("difficulty.initial_interest"),
01592   SettingEntry("difficulty.max_loan"),
01593   SettingEntry("difficulty.subsidy_multiplier"),
01594   SettingEntry("difficulty.economy"),
01595   SettingEntry("economy.smooth_economy"),
01596   SettingEntry("economy.feeder_payment_share"),
01597   SettingEntry("economy.infrastructure_maintenance"),
01598   SettingEntry("difficulty.vehicle_costs"),
01599   SettingEntry("difficulty.construction_cost"),
01600   SettingEntry("difficulty.disasters"),
01601 };
01603 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
01604 
01605 static SettingEntry _settings_linkgraph[] = {
01606   SettingEntry("linkgraph.recalc_time"),
01607   SettingEntry("linkgraph.recalc_interval"),
01608   SettingEntry("linkgraph.distribution_pax"),
01609   SettingEntry("linkgraph.distribution_mail"),
01610   SettingEntry("linkgraph.distribution_armoured"),
01611   SettingEntry("linkgraph.distribution_default"),
01612   SettingEntry("linkgraph.accuracy"),
01613   SettingEntry("linkgraph.demand_distance"),
01614   SettingEntry("linkgraph.demand_size"),
01615   SettingEntry("linkgraph.short_path_saturation"),
01616 };
01618 static SettingsPage _settings_linkgraph_page = {_settings_linkgraph, lengthof(_settings_linkgraph)};
01619 
01620 static SettingEntry _settings_ai_npc[] = {
01621   SettingEntry("script.settings_profile"),
01622   SettingEntry("script.script_max_opcode_till_suspend"),
01623   SettingEntry("difficulty.competitor_speed"),
01624   SettingEntry("ai.ai_in_multiplayer"),
01625   SettingEntry("ai.ai_disable_veh_train"),
01626   SettingEntry("ai.ai_disable_veh_roadveh"),
01627   SettingEntry("ai.ai_disable_veh_aircraft"),
01628   SettingEntry("ai.ai_disable_veh_ship"),
01629 };
01631 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
01632 
01633 static SettingEntry _settings_ai[] = {
01634   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
01635   SettingEntry("economy.give_money"),
01636   SettingEntry("economy.allow_shares"),
01637 };
01639 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
01640 
01641 static SettingEntry _settings_vehicles_routing[] = {
01642   SettingEntry("pf.pathfinder_for_trains"),
01643   SettingEntry("pf.forbid_90_deg"),
01644   SettingEntry("pf.pathfinder_for_roadvehs"),
01645   SettingEntry("pf.roadveh_queue"),
01646   SettingEntry("pf.pathfinder_for_ships"),
01647 };
01649 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
01650 
01651 static SettingEntry _settings_vehicles_autorenew[] = {
01652   SettingEntry("company.engine_renew"),
01653   SettingEntry("company.engine_renew_months"),
01654   SettingEntry("company.engine_renew_money"),
01655 };
01657 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
01658 
01659 static SettingEntry _settings_vehicles_servicing[] = {
01660   SettingEntry("vehicle.servint_ispercent"),
01661   SettingEntry("vehicle.servint_trains"),
01662   SettingEntry("vehicle.servint_roadveh"),
01663   SettingEntry("vehicle.servint_ships"),
01664   SettingEntry("vehicle.servint_aircraft"),
01665   SettingEntry("difficulty.vehicle_breakdowns"),
01666   SettingEntry("order.no_servicing_if_no_breakdowns"),
01667   SettingEntry("order.serviceathelipad"),
01668 };
01670 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
01671 
01672 static SettingEntry _settings_vehicles_trains[] = {
01673   SettingEntry("difficulty.line_reverse_mode"),
01674   SettingEntry("pf.reverse_at_signals"),
01675   SettingEntry("vehicle.train_acceleration_model"),
01676   SettingEntry("vehicle.train_slope_steepness"),
01677   SettingEntry("vehicle.max_train_length"),
01678   SettingEntry("vehicle.wagon_speed_limits"),
01679   SettingEntry("vehicle.disable_elrails"),
01680   SettingEntry("vehicle.freight_trains"),
01681   SettingEntry("gui.stop_location"),
01682 };
01684 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
01685 
01686 static SettingEntry _settings_vehicles[] = {
01687   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
01688   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
01689   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
01690   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
01691   SettingEntry("gui.new_nonstop"),
01692   SettingEntry("gui.order_review_system"),
01693   SettingEntry("gui.vehicle_income_warn"),
01694   SettingEntry("gui.lost_vehicle_warn"),
01695   SettingEntry("vehicle.never_expire_vehicles"),
01696   SettingEntry("vehicle.max_trains"),
01697   SettingEntry("vehicle.max_roadveh"),
01698   SettingEntry("vehicle.max_aircraft"),
01699   SettingEntry("vehicle.max_ships"),
01700   SettingEntry("vehicle.plane_speed"),
01701   SettingEntry("vehicle.plane_crashes"),
01702   SettingEntry("vehicle.dynamic_engines"),
01703   SettingEntry("vehicle.roadveh_acceleration_model"),
01704   SettingEntry("vehicle.roadveh_slope_steepness"),
01705   SettingEntry("vehicle.smoke_amount"),
01706 };
01708 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
01709 
01710 static SettingEntry _settings_main[] = {
01711   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
01712   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
01713   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
01714   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
01715   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
01716   SettingEntry(&_settings_linkgraph_page,    STR_CONFIG_SETTING_LINKGRAPH),
01717   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
01718 };
01719 
01721 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
01722 
01723 static const StringID _game_settings_restrict_dropdown[] = {
01724   STR_CONFIG_SETTING_RESTRICT_BASIC,                            // RM_BASIC
01725   STR_CONFIG_SETTING_RESTRICT_ADVANCED,                         // RM_ADVANCED
01726   STR_CONFIG_SETTING_RESTRICT_ALL,                              // RM_ALL
01727   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_DEFAULT,          // RM_CHANGED_AGAINST_DEFAULT
01728   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_NEW,              // RM_CHANGED_AGAINST_NEW
01729 };
01730 assert_compile(lengthof(_game_settings_restrict_dropdown) == RM_END);
01731 
01732 struct GameSettingsWindow : Window {
01733   static const int SETTINGTREE_LEFT_OFFSET   = 5; 
01734   static const int SETTINGTREE_RIGHT_OFFSET  = 5; 
01735   static const int SETTINGTREE_TOP_OFFSET    = 5; 
01736   static const int SETTINGTREE_BOTTOM_OFFSET = 5; 
01737 
01738   static GameSettings *settings_ptr; 
01739 
01740   SettingEntry *valuewindow_entry;   
01741   SettingEntry *clicked_entry;       
01742   SettingEntry *last_clicked;        
01743   SettingEntry *valuedropdown_entry; 
01744   bool closing_dropdown;             
01745 
01746   SettingFilter filter;              
01747   QueryString filter_editbox;        
01748   bool manually_changed_folding;     
01749 
01750   Scrollbar *vscroll;
01751 
01752   GameSettingsWindow(const WindowDesc *desc) : filter_editbox(50)
01753   {
01754     static bool first_time = true;
01755 
01756     filter.mode = (RestrictionMode)_settings_client.gui.settings_restriction_mode;
01757     filter.type = ST_ALL;
01758     settings_ptr = &GetGameSettings();
01759 
01760     /* Build up the dynamic settings-array only once per OpenTTD session */
01761     if (first_time) {
01762       _settings_main_page.Init();
01763       first_time = false;
01764     } else {
01765       _settings_main_page.FoldAll(); // Close all sub-pages
01766     }
01767 
01768     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
01769     this->clicked_entry = NULL; // No numeric setting buttons are depressed
01770     this->last_clicked = NULL;
01771     this->valuedropdown_entry = NULL;
01772     this->closing_dropdown = false;
01773     this->manually_changed_folding = false;
01774 
01775     this->CreateNestedTree(desc);
01776     this->vscroll = this->GetScrollbar(WID_GS_SCROLLBAR);
01777     this->FinishInitNested(desc, WN_GAME_OPTIONS_GAME_SETTINGS);
01778 
01779     this->querystrings[WID_GS_FILTER] = &this->filter_editbox;
01780     this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
01781     this->SetFocusedWidget(WID_GS_FILTER);
01782 
01783     this->InvalidateData();
01784   }
01785 
01786   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01787   {
01788     switch (widget) {
01789       case WID_GS_OPTIONSPANEL:
01790         resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
01791         resize->width  = 1;
01792 
01793         size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
01794         break;
01795 
01796       case WID_GS_HELP_TEXT: {
01797         static const StringID setting_types[] = {
01798           STR_CONFIG_SETTING_TYPE_CLIENT,
01799           STR_CONFIG_SETTING_TYPE_COMPANY_MENU, STR_CONFIG_SETTING_TYPE_COMPANY_INGAME,
01800           STR_CONFIG_SETTING_TYPE_GAME_MENU, STR_CONFIG_SETTING_TYPE_GAME_INGAME,
01801         };
01802         for (uint i = 0; i < lengthof(setting_types); i++) {
01803           SetDParam(0, setting_types[i]);
01804           size->width = max(size->width, GetStringBoundingBox(STR_CONFIG_SETTING_TYPE).width);
01805         }
01806         size->height = 2 * FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL +
01807             max(size->height, _settings_main_page.GetMaxHelpHeight(size->width));
01808         break;
01809       }
01810 
01811       default:
01812         break;
01813     }
01814   }
01815 
01816   virtual void OnPaint()
01817   {
01818     if (this->closing_dropdown) {
01819       this->closing_dropdown = false;
01820       assert(this->valuedropdown_entry != NULL);
01821       this->valuedropdown_entry->SetButtons(0);
01822       this->valuedropdown_entry = NULL;
01823     }
01824     this->DrawWidgets();
01825   }
01826 
01827   virtual void SetStringParameters(int widget) const
01828   {
01829     switch (widget) {
01830       case WID_GS_RESTRICT_DROPDOWN:
01831         SetDParam(0, _game_settings_restrict_dropdown[this->filter.mode]);
01832         break;
01833 
01834       case WID_GS_TYPE_DROPDOWN:
01835         switch (this->filter.type) {
01836           case ST_GAME:    SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_INGAME); break;
01837           case ST_COMPANY: SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_INGAME); break;
01838           case ST_CLIENT:  SetDParam(0, STR_CONFIG_SETTING_TYPE_DROPDOWN_CLIENT); break;
01839           default:         SetDParam(0, STR_CONFIG_SETTING_TYPE_DROPDOWN_ALL); break;
01840         }
01841         break;
01842     }
01843   }
01844 
01845   DropDownList *BuildDropDownList(int widget) const
01846   {
01847     DropDownList *list = NULL;
01848     switch (widget) {
01849       case WID_GS_RESTRICT_DROPDOWN:
01850         list = new DropDownList();
01851 
01852         for (int mode = 0; mode != RM_END; mode++) {
01853           /* If we are in adv. settings screen for the new game's settings,
01854            * we don't want to allow comparing with new game's settings. */
01855           bool disabled = mode == RM_CHANGED_AGAINST_NEW && settings_ptr == &_settings_newgame;
01856 
01857           list->push_back(new DropDownListStringItem(_game_settings_restrict_dropdown[mode], mode, disabled));
01858         }
01859         break;
01860 
01861       case WID_GS_TYPE_DROPDOWN:
01862         list = new DropDownList();
01863         list->push_back(new DropDownListStringItem(STR_CONFIG_SETTING_TYPE_DROPDOWN_ALL, ST_ALL, false));
01864         list->push_back(new DropDownListStringItem(_game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_INGAME, ST_GAME, false));
01865         list->push_back(new DropDownListStringItem(_game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_INGAME, ST_COMPANY, false));
01866         list->push_back(new DropDownListStringItem(STR_CONFIG_SETTING_TYPE_DROPDOWN_CLIENT, ST_CLIENT, false));
01867         break;
01868     }
01869     return list;
01870   }
01871 
01872   virtual void DrawWidget(const Rect &r, int widget) const
01873   {
01874     switch (widget) {
01875       case WID_GS_OPTIONSPANEL:
01876         _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
01877             this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->last_clicked);
01878         break;
01879 
01880       case WID_GS_HELP_TEXT:
01881         if (this->last_clicked != NULL) {
01882           const SettingDesc *sd = this->last_clicked->d.entry.setting;
01883 
01884           int y = r.top;
01885           switch (sd->GetType()) {
01886             case ST_COMPANY: SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_COMPANY_INGAME); break;
01887             case ST_CLIENT:  SetDParam(0, STR_CONFIG_SETTING_TYPE_CLIENT); break;
01888             case ST_GAME:    SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_GAME_MENU : STR_CONFIG_SETTING_TYPE_GAME_INGAME); break;
01889             default: NOT_REACHED();
01890           }
01891           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_TYPE);
01892           y += FONT_HEIGHT_NORMAL;
01893 
01894           int32 default_value = ReadValue(&sd->desc.def, sd->save.conv);
01895           this->last_clicked->SetValueDParams(0, default_value);
01896           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_DEFAULT_VALUE);
01897           y += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
01898 
01899           DrawStringMultiLine(r.left, r.right, y, r.bottom, this->last_clicked->GetHelpText(), TC_WHITE);
01900         }
01901         break;
01902 
01903       default:
01904         break;
01905     }
01906   }
01907 
01912   void SetDisplayedHelpText(SettingEntry *pe)
01913   {
01914     if (this->last_clicked != pe) this->SetDirty();
01915     this->last_clicked = pe;
01916   }
01917 
01918   virtual void OnClick(Point pt, int widget, int click_count)
01919   {
01920     switch (widget) {
01921       case WID_GS_EXPAND_ALL:
01922         this->manually_changed_folding = true;
01923         _settings_main_page.UnFoldAll();
01924         this->InvalidateData();
01925         break;
01926 
01927       case WID_GS_COLLAPSE_ALL:
01928         this->manually_changed_folding = true;
01929         _settings_main_page.FoldAll();
01930         this->InvalidateData();
01931         break;
01932 
01933       case WID_GS_RESTRICT_DROPDOWN: {
01934         DropDownList *list = this->BuildDropDownList(widget);
01935         if (list != NULL) {
01936           ShowDropDownList(this, list, this->filter.mode, widget);
01937         }
01938         break;
01939       }
01940 
01941       case WID_GS_TYPE_DROPDOWN: {
01942         DropDownList *list = this->BuildDropDownList(widget);
01943         if (list != NULL) {
01944           ShowDropDownList(this, list, this->filter.type, widget);
01945         }
01946         break;
01947       }
01948     }
01949 
01950     if (widget != WID_GS_OPTIONSPANEL) return;
01951 
01952     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET);
01953     if (btn == INT_MAX) return;
01954 
01955     uint cur_row = 0;
01956     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
01957 
01958     if (pe == NULL) return;  // Clicked below the last setting of the page
01959 
01960     int x = (_current_text_dir == TD_RTL ? this->width - 1 - pt.x : pt.x) - SETTINGTREE_LEFT_OFFSET - (pe->level + 1) * LEVEL_WIDTH;  // Shift x coordinate
01961     if (x < 0) return;  // Clicked left of the entry
01962 
01963     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
01964       this->SetDisplayedHelpText(NULL);
01965       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
01966 
01967       this->manually_changed_folding = true;
01968 
01969       this->InvalidateData();
01970       return;
01971     }
01972 
01973     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01974     const SettingDesc *sd = pe->d.entry.setting;
01975 
01976     /* return if action is only active in network, or only settable by server */
01977     if (!sd->IsEditable()) {
01978       this->SetDisplayedHelpText(pe);
01979       return;
01980     }
01981 
01982     const void *var = ResolveVariableAddress(settings_ptr, sd);
01983     int32 value = (int32)ReadValue(var, sd->save.conv);
01984 
01985     /* clicked on the icon on the left side. Either scroller, bool on/off or dropdown */
01986     if (x < SETTING_BUTTON_WIDTH && (sd->desc.flags & SGF_MULTISTRING)) {
01987       const SettingDescBase *sdb = &sd->desc;
01988       this->SetDisplayedHelpText(pe);
01989 
01990       if (this->valuedropdown_entry == pe) {
01991         /* unclick the dropdown */
01992         HideDropDownMenu(this);
01993         this->closing_dropdown = false;
01994         this->valuedropdown_entry->SetButtons(0);
01995         this->valuedropdown_entry = NULL;
01996       } else {
01997         if (this->valuedropdown_entry != NULL) this->valuedropdown_entry->SetButtons(0);
01998         this->closing_dropdown = false;
01999 
02000         const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_GS_OPTIONSPANEL);
02001         int rel_y = (pt.y - (int)wid->pos_y - SETTINGTREE_TOP_OFFSET) % wid->resize_y;
02002 
02003         Rect wi_rect;
02004         wi_rect.left = pt.x - (_current_text_dir == TD_RTL ? SETTING_BUTTON_WIDTH - 1 - x : x);
02005         wi_rect.right = wi_rect.left + SETTING_BUTTON_WIDTH - 1;
02006         wi_rect.top = pt.y - rel_y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
02007         wi_rect.bottom = wi_rect.top + SETTING_BUTTON_HEIGHT - 1;
02008 
02009         /* For dropdowns we also have to check the y position thoroughly, the mouse may not above the just opening dropdown */
02010         if (pt.y >= wi_rect.top && pt.y <= wi_rect.bottom) {
02011           this->valuedropdown_entry = pe;
02012           this->valuedropdown_entry->SetButtons(SEF_LEFT_DEPRESSED);
02013 
02014           DropDownList *list = new DropDownList();
02015           for (int i = sdb->min; i <= (int)sdb->max; i++) {
02016             list->push_back(new DropDownListStringItem(sdb->str_val + i - sdb->min, i, false));
02017           }
02018 
02019           ShowDropDownListAt(this, list, value, -1, wi_rect, COLOUR_ORANGE, true);
02020         }
02021       }
02022       this->SetDirty();
02023     } else if (x < SETTING_BUTTON_WIDTH) {
02024       this->SetDisplayedHelpText(pe);
02025       const SettingDescBase *sdb = &sd->desc;
02026       int32 oldvalue = value;
02027 
02028       switch (sdb->cmd) {
02029         case SDT_BOOLX: value ^= 1; break;
02030         case SDT_ONEOFMANY:
02031         case SDT_NUMX: {
02032           /* Add a dynamic step-size to the scroller. In a maximum of
02033            * 50-steps you should be able to get from min to max,
02034            * unless specified otherwise in the 'interval' variable
02035            * of the current setting. */
02036           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
02037           if (step == 0) step = 1;
02038 
02039           /* don't allow too fast scrolling */
02040           if ((this->flags & WF_TIMEOUT) && this->timeout_timer > 1) {
02041             _left_button_clicked = false;
02042             return;
02043           }
02044 
02045           /* Increase or decrease the value and clamp it to extremes */
02046           if (x >= SETTING_BUTTON_WIDTH / 2) {
02047             value += step;
02048             if (sdb->min < 0) {
02049               assert((int32)sdb->max >= 0);
02050               if (value > (int32)sdb->max) value = (int32)sdb->max;
02051             } else {
02052               if ((uint32)value > sdb->max) value = (int32)sdb->max;
02053             }
02054             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
02055           } else {
02056             value -= step;
02057             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
02058           }
02059 
02060           /* Set up scroller timeout for numeric values */
02061           if (value != oldvalue) {
02062             if (this->clicked_entry != NULL) { // Release previous buttons if any
02063               this->clicked_entry->SetButtons(0);
02064             }
02065             this->clicked_entry = pe;
02066             this->clicked_entry->SetButtons((x >= SETTING_BUTTON_WIDTH / 2) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
02067             this->SetTimeout();
02068             _left_button_clicked = false;
02069           }
02070           break;
02071         }
02072 
02073         default: NOT_REACHED();
02074       }
02075 
02076       if (value != oldvalue) {
02077         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02078           SetCompanySetting(pe->d.entry.index, value);
02079         } else {
02080           SetSettingValue(pe->d.entry.index, value);
02081         }
02082         this->SetDirty();
02083       }
02084     } else {
02085       /* Only open editbox if clicked for the second time, and only for types where it is sensible for. */
02086       if (this->last_clicked == pe && sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
02087         /* Show the correct currency-translated value */
02088         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
02089 
02090         this->valuewindow_entry = pe;
02091         SetDParam(0, value);
02092         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
02093       }
02094       this->SetDisplayedHelpText(pe);
02095     }
02096   }
02097 
02098   virtual void OnTimeout()
02099   {
02100     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
02101       this->clicked_entry->SetButtons(0);
02102       this->clicked_entry = NULL;
02103       this->SetDirty();
02104     }
02105   }
02106 
02107   virtual void OnQueryTextFinished(char *str)
02108   {
02109     /* The user pressed cancel */
02110     if (str == NULL) return;
02111 
02112     assert(this->valuewindow_entry != NULL);
02113     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
02114     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
02115 
02116     int32 value;
02117     if (!StrEmpty(str)) {
02118       value = atoi(str);
02119 
02120       /* Save the correct currency-translated value */
02121       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
02122     } else {
02123       value = (int32)(size_t)sd->desc.def;
02124     }
02125 
02126     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02127       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
02128     } else {
02129       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
02130     }
02131     this->SetDirty();
02132   }
02133 
02134   virtual void OnDropdownSelect(int widget, int index)
02135   {
02136     switch (widget) {
02137       case WID_GS_RESTRICT_DROPDOWN:
02138         this->filter.mode = (RestrictionMode)index;
02139         if (this->filter.mode == RM_CHANGED_AGAINST_DEFAULT ||
02140             this->filter.mode == RM_CHANGED_AGAINST_NEW) {
02141 
02142           if (!this->manually_changed_folding) {
02143             /* Expand all when selecting 'changes'. Update the filter state first, in case it becomes less restrictive in some cases. */
02144             _settings_main_page.UpdateFilterState(this->filter, false);
02145             _settings_main_page.UnFoldAll();
02146           }
02147         } else {
02148           /* Non-'changes' filter. Save as default. */
02149           _settings_client.gui.settings_restriction_mode = this->filter.mode;
02150         }
02151         this->InvalidateData();
02152         break;
02153 
02154       case WID_GS_TYPE_DROPDOWN:
02155         this->filter.type = (SettingType)index;
02156         this->InvalidateData();
02157         break;
02158 
02159       default:
02160         if (widget < 0) {
02161           /* Deal with drop down boxes on the panel. */
02162           assert(this->valuedropdown_entry != NULL);
02163           const SettingDesc *sd = this->valuedropdown_entry->d.entry.setting;
02164           assert(sd->desc.flags & SGF_MULTISTRING);
02165 
02166           if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02167             SetCompanySetting(this->valuedropdown_entry->d.entry.index, index);
02168           } else {
02169             SetSettingValue(this->valuedropdown_entry->d.entry.index, index);
02170           }
02171 
02172           this->SetDirty();
02173         }
02174         break;
02175     }
02176   }
02177 
02178   virtual void OnDropdownClose(Point pt, int widget, int index, bool instant_close)
02179   {
02180     if (widget >= 0) {
02181       /* Normally the default implementation of OnDropdownClose() takes care of
02182        * a few things. We want that behaviour here too, but only for
02183        * "normal" dropdown boxes. The special dropdown boxes added for every
02184        * setting that needs one can't have this call. */
02185       Window::OnDropdownClose(pt, widget, index, instant_close);
02186     } else {
02187       /* We cannot raise the dropdown button just yet. OnClick needs some hint, whether
02188        * the same dropdown button was clicked again, and then not open the dropdown again.
02189        * So, we only remember that it was closed, and process it on the next OnPaint, which is
02190        * after OnClick. */
02191       assert(this->valuedropdown_entry != NULL);
02192       this->closing_dropdown = true;
02193       this->SetDirty();
02194     }
02195   }
02196 
02197   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
02198   {
02199     if (!gui_scope) return;
02200 
02201     _settings_main_page.UpdateFilterState(this->filter, false);
02202 
02203     this->vscroll->SetCount(_settings_main_page.Length());
02204 
02205     if (this->last_clicked != NULL && !_settings_main_page.IsVisible(this->last_clicked)) {
02206       this->SetDisplayedHelpText(NULL);
02207     }
02208 
02209     bool all_folded = true;
02210     bool all_unfolded = true;
02211     _settings_main_page.GetFoldingState(all_folded, all_unfolded);
02212     this->SetWidgetDisabledState(WID_GS_EXPAND_ALL, all_unfolded);
02213     this->SetWidgetDisabledState(WID_GS_COLLAPSE_ALL, all_folded);
02214   }
02215 
02216   virtual void OnEditboxChanged(int wid)
02217   {
02218     if (wid == WID_GS_FILTER) {
02219       this->filter.string.SetFilterTerm(this->filter_editbox.text.buf);
02220       if (!this->filter.string.IsEmpty() && !this->manually_changed_folding) {
02221         /* User never expanded/collapsed single pages and entered a filter term.
02222          * Expand everything, to save weird expand clicks, */
02223         _settings_main_page.UnFoldAll();
02224       }
02225       this->InvalidateData();
02226     }
02227   }
02228 
02229   virtual void OnResize()
02230   {
02231     this->vscroll->SetCapacityFromWidget(this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
02232   }
02233 };
02234 
02235 GameSettings *GameSettingsWindow::settings_ptr = NULL;
02236 
02237 static const NWidgetPart _nested_settings_selection_widgets[] = {
02238   NWidget(NWID_HORIZONTAL),
02239     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
02240     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02241   EndContainer(),
02242   NWidget(WWT_PANEL, COLOUR_MAUVE),
02243     NWidget(NWID_HORIZONTAL), SetPadding(WD_TEXTPANEL_TOP, 0, WD_TEXTPANEL_BOTTOM, 0),
02244         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02245       NWidget(WWT_TEXT, COLOUR_MAUVE, WID_GS_RESTRICT_LABEL), SetDataTip(STR_CONFIG_SETTING_RESTRICT_LABEL, STR_NULL),
02246       NWidget(NWID_VERTICAL), SetPIP(0, WD_PAR_VSEP_NORMAL, 0),
02247         NWidget(WWT_DROPDOWN, COLOUR_MAUVE, WID_GS_RESTRICT_DROPDOWN), SetMinimalSize(100, 12), SetDataTip(STR_BLACK_STRING, STR_CONFIG_SETTING_RESTRICT_DROPDOWN_HELPTEXT), SetFill(1, 0), SetResize(1, 0),
02248         NWidget(WWT_DROPDOWN, COLOUR_MAUVE, WID_GS_TYPE_DROPDOWN), SetMinimalSize(100, 12), SetDataTip(STR_BLACK_STRING, STR_CONFIG_SETTING_TYPE_DROPDOWN_HELPTEXT), SetFill(1, 0), SetResize(1, 0),
02249       EndContainer(),
02250     EndContainer(),
02251     NWidget(NWID_HORIZONTAL), SetPadding(0, 0, WD_TEXTPANEL_BOTTOM, 0),
02252         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02253       NWidget(WWT_TEXT, COLOUR_MAUVE), SetFill(0, 1), SetDataTip(STR_CONFIG_SETTING_FILTER_TITLE, STR_NULL),
02254       NWidget(WWT_EDITBOX, COLOUR_MAUVE, WID_GS_FILTER), SetFill(1, 0), SetMinimalSize(50, 12), SetResize(1, 0),
02255           SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
02256     EndContainer(),
02257   EndContainer(),
02258   NWidget(NWID_HORIZONTAL),
02259     NWidget(WWT_PANEL, COLOUR_MAUVE, WID_GS_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(WID_GS_SCROLLBAR), EndContainer(),
02260     NWidget(NWID_VERTICAL),
02261       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_GS_SCROLLBAR),
02262     EndContainer(),
02263   EndContainer(),
02264   NWidget(WWT_PANEL, COLOUR_MAUVE), SetMinimalSize(400, 40),
02265     NWidget(WWT_EMPTY, INVALID_COLOUR, WID_GS_HELP_TEXT), SetMinimalSize(300, 25), SetFill(1, 1), SetResize(1, 0),
02266         SetPadding(WD_FRAMETEXT_TOP, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_BOTTOM, WD_FRAMETEXT_LEFT),
02267     NWidget(NWID_HORIZONTAL),
02268       NWidget(WWT_PANEL, COLOUR_MAUVE),
02269         NWidget(NWID_HORIZONTAL),
02270           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_EXPAND_ALL), SetDataTip(STR_CONFIG_SETTING_EXPAND_ALL, STR_NULL),
02271           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_COLLAPSE_ALL), SetDataTip(STR_CONFIG_SETTING_COLLAPSE_ALL, STR_NULL),
02272           NWidget(NWID_SPACER, INVALID_COLOUR), SetFill(1, 1), SetResize(1, 0),
02273         EndContainer(),
02274       EndContainer(),
02275       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
02276     EndContainer(),
02277   EndContainer(),
02278 };
02279 
02280 static const WindowDesc _settings_selection_desc(
02281   WDP_CENTER, 510, 450,
02282   WC_GAME_OPTIONS, WC_NONE,
02283   0,
02284   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
02285 );
02286 
02288 void ShowGameSettings()
02289 {
02290   DeleteWindowByClass(WC_GAME_OPTIONS);
02291   new GameSettingsWindow(&_settings_selection_desc);
02292 }
02293 
02294 
02304 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
02305 {
02306   int colour = _colour_gradient[button_colour][2];
02307 
02308   DrawFrameRect(x,                            y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
02309   DrawFrameRect(x + SETTING_BUTTON_WIDTH / 2, y, x + SETTING_BUTTON_WIDTH     - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, (state == 2) ? FR_LOWERED : FR_NONE);
02310   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
02311   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + SETTING_BUTTON_WIDTH / 2, y + WD_IMGBTN_TOP);
02312 
02313   /* Grey out the buttons that aren't clickable */
02314   bool rtl = _current_text_dir == TD_RTL;
02315   if (rtl ? !clickable_right : !clickable_left) {
02316     GfxFillRect(x                            + 1, y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02317   }
02318   if (rtl ? !clickable_left : !clickable_right) {
02319     GfxFillRect(x + SETTING_BUTTON_WIDTH / 2 + 1, y, x + SETTING_BUTTON_WIDTH     - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02320   }
02321 }
02322 
02331 void DrawDropDownButton(int x, int y, Colours button_colour, bool state, bool clickable)
02332 {
02333   static const char *DOWNARROW = "\xEE\x8A\xAA";
02334 
02335   int colour = _colour_gradient[button_colour][2];
02336 
02337   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, state ? FR_LOWERED : FR_NONE);
02338   DrawString(x + (state ? 1 : 0), x + SETTING_BUTTON_WIDTH - (state ? 0 : 1), y + (state ? 2 : 1), DOWNARROW, TC_BLACK, SA_HOR_CENTER);
02339 
02340   if (!clickable) {
02341     GfxFillRect(x +  1, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02342   }
02343 }
02344 
02352 void DrawBoolButton(int x, int y, bool state, bool clickable)
02353 {
02354   static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
02355   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, _bool_ctabs[state][clickable], state ? FR_LOWERED : FR_NONE);
02356 }
02357 
02358 struct CustomCurrencyWindow : Window {
02359   int query_widget;
02360 
02361   CustomCurrencyWindow(const WindowDesc *desc) : Window()
02362   {
02363     this->InitNested(desc);
02364 
02365     SetButtonState();
02366   }
02367 
02368   void SetButtonState()
02369   {
02370     this->SetWidgetDisabledState(WID_CC_RATE_DOWN, _custom_currency.rate == 1);
02371     this->SetWidgetDisabledState(WID_CC_RATE_UP, _custom_currency.rate == UINT16_MAX);
02372     this->SetWidgetDisabledState(WID_CC_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
02373     this->SetWidgetDisabledState(WID_CC_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
02374   }
02375 
02376   virtual void SetStringParameters(int widget) const
02377   {
02378     switch (widget) {
02379       case WID_CC_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
02380       case WID_CC_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
02381       case WID_CC_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
02382       case WID_CC_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
02383       case WID_CC_YEAR:
02384         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
02385         SetDParam(1, _custom_currency.to_euro);
02386         break;
02387 
02388       case WID_CC_PREVIEW:
02389         SetDParam(0, 10000);
02390         break;
02391     }
02392   }
02393 
02394   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
02395   {
02396     switch (widget) {
02397       /* Set the appropriate width for the edit 'buttons' */
02398       case WID_CC_SEPARATOR_EDIT:
02399       case WID_CC_PREFIX_EDIT:
02400       case WID_CC_SUFFIX_EDIT:
02401         size->width  = this->GetWidget<NWidgetBase>(WID_CC_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(WID_CC_RATE_UP)->smallest_x;
02402         break;
02403 
02404       /* Make sure the window is wide enough for the widest exchange rate */
02405       case WID_CC_RATE:
02406         SetDParam(0, 1);
02407         SetDParam(1, INT32_MAX);
02408         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
02409         break;
02410     }
02411   }
02412 
02413   virtual void OnClick(Point pt, int widget, int click_count)
02414   {
02415     int line = 0;
02416     int len = 0;
02417     StringID str = 0;
02418     CharSetFilter afilter = CS_ALPHANUMERAL;
02419 
02420     switch (widget) {
02421       case WID_CC_RATE_DOWN:
02422         if (_custom_currency.rate > 1) _custom_currency.rate--;
02423         if (_custom_currency.rate == 1) this->DisableWidget(WID_CC_RATE_DOWN);
02424         this->EnableWidget(WID_CC_RATE_UP);
02425         break;
02426 
02427       case WID_CC_RATE_UP:
02428         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
02429         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(WID_CC_RATE_UP);
02430         this->EnableWidget(WID_CC_RATE_DOWN);
02431         break;
02432 
02433       case WID_CC_RATE:
02434         SetDParam(0, _custom_currency.rate);
02435         str = STR_JUST_INT;
02436         len = 5;
02437         line = WID_CC_RATE;
02438         afilter = CS_NUMERAL;
02439         break;
02440 
02441       case WID_CC_SEPARATOR_EDIT:
02442       case WID_CC_SEPARATOR:
02443         SetDParamStr(0, _custom_currency.separator);
02444         str = STR_JUST_RAW_STRING;
02445         len = 1;
02446         line = WID_CC_SEPARATOR;
02447         break;
02448 
02449       case WID_CC_PREFIX_EDIT:
02450       case WID_CC_PREFIX:
02451         SetDParamStr(0, _custom_currency.prefix);
02452         str = STR_JUST_RAW_STRING;
02453         len = 12;
02454         line = WID_CC_PREFIX;
02455         break;
02456 
02457       case WID_CC_SUFFIX_EDIT:
02458       case WID_CC_SUFFIX:
02459         SetDParamStr(0, _custom_currency.suffix);
02460         str = STR_JUST_RAW_STRING;
02461         len = 12;
02462         line = WID_CC_SUFFIX;
02463         break;
02464 
02465       case WID_CC_YEAR_DOWN:
02466         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
02467         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(WID_CC_YEAR_DOWN);
02468         this->EnableWidget(WID_CC_YEAR_UP);
02469         break;
02470 
02471       case WID_CC_YEAR_UP:
02472         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
02473         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(WID_CC_YEAR_UP);
02474         this->EnableWidget(WID_CC_YEAR_DOWN);
02475         break;
02476 
02477       case WID_CC_YEAR:
02478         SetDParam(0, _custom_currency.to_euro);
02479         str = STR_JUST_INT;
02480         len = 7;
02481         line = WID_CC_YEAR;
02482         afilter = CS_NUMERAL;
02483         break;
02484     }
02485 
02486     if (len != 0) {
02487       this->query_widget = line;
02488       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, this, afilter, QSF_NONE);
02489     }
02490 
02491     this->SetTimeout();
02492     this->SetDirty();
02493   }
02494 
02495   virtual void OnQueryTextFinished(char *str)
02496   {
02497     if (str == NULL) return;
02498 
02499     switch (this->query_widget) {
02500       case WID_CC_RATE:
02501         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
02502         break;
02503 
02504       case WID_CC_SEPARATOR: // Thousands separator
02505         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
02506         break;
02507 
02508       case WID_CC_PREFIX:
02509         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
02510         break;
02511 
02512       case WID_CC_SUFFIX:
02513         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
02514         break;
02515 
02516       case WID_CC_YEAR: { // Year to switch to euro
02517         int val = atoi(str);
02518 
02519         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
02520         break;
02521       }
02522     }
02523     MarkWholeScreenDirty();
02524     SetButtonState();
02525   }
02526 
02527   virtual void OnTimeout()
02528   {
02529     this->SetDirty();
02530   }
02531 };
02532 
02533 static const NWidgetPart _nested_cust_currency_widgets[] = {
02534   NWidget(NWID_HORIZONTAL),
02535     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
02536     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02537   EndContainer(),
02538   NWidget(WWT_PANEL, COLOUR_GREY),
02539     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
02540       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02541         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
02542         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
02543         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02544         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
02545       EndContainer(),
02546       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02547         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
02548         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02549         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
02550       EndContainer(),
02551       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02552         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
02553         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02554         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
02555       EndContainer(),
02556       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02557         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
02558         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02559         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
02560       EndContainer(),
02561       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02562         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02563         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02564         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02565         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
02566       EndContainer(),
02567     EndContainer(),
02568     NWidget(WWT_LABEL, COLOUR_BLUE, WID_CC_PREVIEW),
02569                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
02570   EndContainer(),
02571 };
02572 
02573 static const WindowDesc _cust_currency_desc(
02574   WDP_CENTER, 0, 0,
02575   WC_CUSTOM_CURRENCY, WC_NONE,
02576   0,
02577   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
02578 );
02579 
02581 static void ShowCustCurrency()
02582 {
02583   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
02584   new CustomCurrencyWindow(&_cust_currency_desc);
02585 }