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 "gui.h"
00015 #include "textbuf_gui.h"
00016 #include "command_func.h"
00017 #include "screenshot.h"
00018 #include "network/network.h"
00019 #include "town.h"
00020 #include "settings_internal.h"
00021 #include "newgrf_townname.h"
00022 #include "strings_func.h"
00023 #include "window_func.h"
00024 #include "string_func.h"
00025 #include "widgets/dropdown_type.h"
00026 #include "widgets/dropdown_func.h"
00027 #include "highscore.h"
00028 #include "base_media_base.h"
00029 #include "company_base.h"
00030 #include "company_func.h"
00031 #include "viewport_func.h"
00032 #include "core/geometry_func.hpp"
00033 #include "ai/ai.hpp"
00034 #include "language.h"
00035 
00036 #include "table/sprites.h"
00037 #include "table/strings.h"
00038 
00039 static const StringID _units_dropdown[] = {
00040   STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,
00041   STR_GAME_OPTIONS_MEASURING_UNITS_METRIC,
00042   STR_GAME_OPTIONS_MEASURING_UNITS_SI,
00043   INVALID_STRING_ID
00044 };
00045 
00046 static const StringID _driveside_dropdown[] = {
00047   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT,
00048   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_RIGHT,
00049   INVALID_STRING_ID
00050 };
00051 
00052 static const StringID _autosave_dropdown[] = {
00053   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
00054   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_MONTH,
00055   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_3_MONTHS,
00056   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_6_MONTHS,
00057   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_12_MONTHS,
00058   INVALID_STRING_ID,
00059 };
00060 
00067 static StringID *BuildDynamicDropdown(StringID base, int num)
00068 {
00069   static StringID buf[32 + 1];
00070   StringID *p = buf;
00071   while (--num >= 0) *p++ = base++;
00072   *p = INVALID_STRING_ID;
00073   return buf;
00074 }
00075 
00076 int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1; 
00077 static StringID *_grf_names = NULL; 
00078 static int _nb_grf_names = 0;       
00079 
00081 void InitGRFTownGeneratorNames()
00082 {
00083   free(_grf_names);
00084   _grf_names = GetGRFTownNameList();
00085   _nb_grf_names = 0;
00086   for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;
00087 }
00088 
00094 static inline StringID TownName(int town_name)
00095 {
00096   if (town_name < _nb_orig_names) return STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + town_name;
00097   town_name -= _nb_orig_names;
00098   if (town_name < _nb_grf_names) return _grf_names[town_name];
00099   return STR_UNDEFINED;
00100 }
00101 
00106 static int GetCurRes()
00107 {
00108   int i;
00109 
00110   for (i = 0; i != _num_resolutions; i++) {
00111     if ((int)_resolutions[i].width == _screen.width &&
00112         (int)_resolutions[i].height == _screen.height) {
00113       break;
00114     }
00115   }
00116   return i;
00117 }
00118 
00120 enum GameOptionsWidgets {
00121   GOW_BACKGROUND,             
00122   GOW_CURRENCY_DROPDOWN,      
00123   GOW_DISTANCE_DROPDOWN,      
00124   GOW_ROADSIDE_DROPDOWN,      
00125   GOW_TOWNNAME_DROPDOWN,      
00126   GOW_AUTOSAVE_DROPDOWN,      
00127   GOW_LANG_DROPDOWN,          
00128   GOW_RESOLUTION_DROPDOWN,    
00129   GOW_FULLSCREEN_BUTTON,      
00130   GOW_SCREENSHOT_DROPDOWN,    
00131   GOW_BASE_GRF_DROPDOWN,      
00132   GOW_BASE_GRF_STATUS,        
00133   GOW_BASE_GRF_DESCRIPTION,   
00134   GOW_BASE_SFX_DROPDOWN,      
00135   GOW_BASE_SFX_DESCRIPTION,   
00136   GOW_BASE_MUSIC_DROPDOWN,    
00137   GOW_BASE_MUSIC_STATUS,      
00138   GOW_BASE_MUSIC_DESCRIPTION, 
00139 };
00140 
00146 static void ShowTownnameDropdown(Window *w, int sel)
00147 {
00148   typedef std::map<StringID, int, StringIDCompare> TownList;
00149   TownList townnames;
00150 
00151   /* Add and sort original townnames generators */
00152   for (int i = 0; i < _nb_orig_names; i++) townnames[STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + i] = i;
00153 
00154   /* Add and sort newgrf townnames generators */
00155   for (int i = 0; i < _nb_grf_names; i++) townnames[_grf_names[i]] = _nb_orig_names + i;
00156 
00157   DropDownList *list = new DropDownList();
00158   for (TownList::iterator it = townnames.begin(); it != townnames.end(); it++) {
00159     list->push_back(new DropDownListStringItem((*it).first, (*it).second, !(_game_mode == GM_MENU || Town::GetNumItems() == 0 || (*it).second == sel)));
00160   }
00161 
00162   ShowDropDownList(w, list, sel, GOW_TOWNNAME_DROPDOWN);
00163 }
00164 
00165 static void ShowCustCurrency();
00166 
00167 template <class T>
00168 static void ShowSetMenu(Window *w, int widget)
00169 {
00170   int n = T::GetNumSets();
00171   int current = T::GetIndexOfUsedSet();
00172 
00173   DropDownList *list = new DropDownList();
00174   for (int i = 0; i < n; i++) {
00175     list->push_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, (_game_mode == GM_MENU) ? false : (current != i)));
00176   }
00177 
00178   ShowDropDownList(w, list, current, widget);
00179 }
00180 
00181 struct GameOptionsWindow : Window {
00182   GameSettings *opt;
00183   bool reload;
00184 
00185   GameOptionsWindow(const WindowDesc *desc) : Window()
00186   {
00187     this->opt = &GetGameSettings();
00188     this->reload = false;
00189 
00190     this->InitNested(desc);
00191     this->OnInvalidateData(0);
00192   }
00193 
00194   ~GameOptionsWindow()
00195   {
00196     DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
00197     if (this->reload) _switch_mode = SM_MENU;
00198   }
00199 
00200   virtual void SetStringParameters(int widget) const
00201   {
00202     switch (widget) {
00203       case GOW_CURRENCY_DROPDOWN:   SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
00204       case GOW_DISTANCE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL + this->opt->locale.units); break;
00205       case GOW_ROADSIDE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT + this->opt->vehicle.road_side); break;
00206       case GOW_TOWNNAME_DROPDOWN:   SetDParam(0, TownName(this->opt->game_creation.town_name)); break;
00207       case GOW_AUTOSAVE_DROPDOWN:   SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
00208       case GOW_LANG_DROPDOWN:       SetDParamStr(0, _current_language->own_name); break;
00209       case GOW_RESOLUTION_DROPDOWN: SetDParam(0, GetCurRes() == _num_resolutions ? STR_GAME_OPTIONS_RESOLUTION_OTHER : SPECSTR_RESOLUTION_START + GetCurRes()); break;
00210       case GOW_SCREENSHOT_DROPDOWN: SetDParam(0, SPECSTR_SCREENSHOT_START + _cur_screenshot_format); break;
00211       case GOW_BASE_GRF_DROPDOWN:   SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
00212       case GOW_BASE_GRF_STATUS:     SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
00213       case GOW_BASE_SFX_DROPDOWN:   SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
00214       case GOW_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
00215       case GOW_BASE_MUSIC_STATUS:   SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
00216     }
00217   }
00218 
00219   virtual void DrawWidget(const Rect &r, int widget) const
00220   {
00221     switch (widget) {
00222       case GOW_BASE_GRF_DESCRIPTION:
00223         SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00224         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00225         break;
00226 
00227       case GOW_BASE_SFX_DESCRIPTION:
00228         SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00229         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00230         break;
00231 
00232       case GOW_BASE_MUSIC_DESCRIPTION:
00233         SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00234         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00235         break;
00236     }
00237   }
00238 
00239   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00240   {
00241     switch (widget) {
00242       case GOW_BASE_GRF_DESCRIPTION:
00243         /* Find the biggest description for the default size. */
00244         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00245           SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00246           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00247         }
00248         break;
00249 
00250       case GOW_BASE_GRF_STATUS:
00251         /* Find the biggest description for the default size. */
00252         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00253           uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
00254           if (invalid_files == 0) continue;
00255 
00256           SetDParam(0, invalid_files);
00257           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
00258         }
00259         break;
00260 
00261       case GOW_BASE_SFX_DESCRIPTION:
00262         /* Find the biggest description for the default size. */
00263         for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
00264           SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00265           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00266         }
00267         break;
00268 
00269       case GOW_BASE_MUSIC_DESCRIPTION:
00270         /* Find the biggest description for the default size. */
00271         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00272           SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00273           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00274         }
00275         break;
00276 
00277       case GOW_BASE_MUSIC_STATUS:
00278         /* Find the biggest description for the default size. */
00279         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00280           uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
00281           if (invalid_files == 0) continue;
00282 
00283           SetDParam(0, invalid_files);
00284           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
00285         }
00286         break;
00287     }
00288   }
00289 
00290   virtual void OnClick(Point pt, int widget, int click_count)
00291   {
00292     switch (widget) {
00293       case GOW_CURRENCY_DROPDOWN: // Setup currencies dropdown
00294         ShowDropDownMenu(this, BuildCurrencyDropdown(), this->opt->locale.currency, GOW_CURRENCY_DROPDOWN, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);
00295         break;
00296 
00297       case GOW_DISTANCE_DROPDOWN: // Setup distance unit dropdown
00298         ShowDropDownMenu(this, _units_dropdown, this->opt->locale.units, GOW_DISTANCE_DROPDOWN, 0, 0);
00299         break;
00300 
00301       case GOW_ROADSIDE_DROPDOWN: { // Setup road-side dropdown
00302         int i = 0;
00303         extern bool RoadVehiclesAreBuilt();
00304 
00305         /* You can only change the drive side if you are in the menu or ingame with
00306          * no vehicles present. In a networking game only the server can change it */
00307         if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server)) {
00308           i = (-1) ^ (1 << this->opt->vehicle.road_side); // disable the other value
00309         }
00310 
00311         ShowDropDownMenu(this, _driveside_dropdown, this->opt->vehicle.road_side, GOW_ROADSIDE_DROPDOWN, i, 0);
00312         break;
00313       }
00314 
00315       case GOW_TOWNNAME_DROPDOWN: // Setup townname dropdown
00316         ShowTownnameDropdown(this, this->opt->game_creation.town_name);
00317         break;
00318 
00319       case GOW_AUTOSAVE_DROPDOWN: // Setup autosave dropdown
00320         ShowDropDownMenu(this, _autosave_dropdown, _settings_client.gui.autosave, GOW_AUTOSAVE_DROPDOWN, 0, 0);
00321         break;
00322 
00323       case GOW_LANG_DROPDOWN: { // Setup interface language dropdown
00324         typedef std::map<StringID, int, StringIDCompare> LangList;
00325 
00326         /* Sort language names */
00327         LangList langs;
00328         int current_lang = 0;
00329         for (int i = 0; i < (int)_languages.Length(); i++) {
00330           if (&_languages[i] == _current_language) current_lang = i;
00331           langs[SPECSTR_LANGUAGE_START + i] = i;
00332         }
00333 
00334         DropDownList *list = new DropDownList();
00335         for (LangList::iterator it = langs.begin(); it != langs.end(); it++) {
00336           list->push_back(new DropDownListStringItem((*it).first, (*it).second, false));
00337         }
00338 
00339         ShowDropDownList(this, list, current_lang, GOW_LANG_DROPDOWN);
00340         break;
00341       }
00342 
00343       case GOW_RESOLUTION_DROPDOWN: // Setup resolution dropdown
00344         ShowDropDownMenu(this, BuildDynamicDropdown(SPECSTR_RESOLUTION_START, _num_resolutions), GetCurRes(), GOW_RESOLUTION_DROPDOWN, 0, 0);
00345         break;
00346 
00347       case GOW_FULLSCREEN_BUTTON: // Click fullscreen on/off
00348         /* try to toggle full-screen on/off */
00349         if (!ToggleFullScreen(!_fullscreen)) {
00350           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
00351         }
00352         this->SetWidgetLoweredState(GOW_FULLSCREEN_BUTTON, _fullscreen);
00353         this->SetDirty();
00354         break;
00355 
00356       case GOW_SCREENSHOT_DROPDOWN: // Setup screenshot format dropdown
00357         ShowDropDownMenu(this, BuildDynamicDropdown(SPECSTR_SCREENSHOT_START, _num_screenshot_formats), _cur_screenshot_format, GOW_SCREENSHOT_DROPDOWN, 0, 0);
00358         break;
00359 
00360       case GOW_BASE_GRF_DROPDOWN:
00361         ShowSetMenu<BaseGraphics>(this, GOW_BASE_GRF_DROPDOWN);
00362         break;
00363 
00364       case GOW_BASE_SFX_DROPDOWN:
00365         ShowSetMenu<BaseSounds>(this, GOW_BASE_SFX_DROPDOWN);
00366         break;
00367 
00368       case GOW_BASE_MUSIC_DROPDOWN:
00369         ShowSetMenu<BaseMusic>(this, GOW_BASE_MUSIC_DROPDOWN);
00370         break;
00371     }
00372   }
00373 
00379   template <class T>
00380   void SetMediaSet(int index)
00381   {
00382     if (_game_mode == GM_MENU) {
00383       const char *name = T::GetSet(index)->name;
00384 
00385       free(const_cast<char *>(T::ini_set));
00386       T::ini_set = strdup(name);
00387 
00388       T::SetSet(name);
00389       this->reload = true;
00390       this->InvalidateData();
00391     }
00392   }
00393 
00394   virtual void OnDropdownSelect(int widget, int index)
00395   {
00396     switch (widget) {
00397       case GOW_CURRENCY_DROPDOWN: // Currency
00398         if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();
00399         this->opt->locale.currency = index;
00400         ReInitAllWindows();
00401         break;
00402 
00403       case GOW_DISTANCE_DROPDOWN: // Measuring units
00404         this->opt->locale.units = index;
00405         MarkWholeScreenDirty();
00406         break;
00407 
00408       case GOW_ROADSIDE_DROPDOWN: // Road side
00409         if (this->opt->vehicle.road_side != index) { // only change if setting changed
00410           uint i;
00411           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
00412           SetSettingValue(i, index);
00413           MarkWholeScreenDirty();
00414         }
00415         break;
00416 
00417       case GOW_TOWNNAME_DROPDOWN: // Town names
00418         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
00419           this->opt->game_creation.town_name = index;
00420           SetWindowDirty(WC_GAME_OPTIONS, 0);
00421         }
00422         break;
00423 
00424       case GOW_AUTOSAVE_DROPDOWN: // Autosave options
00425         _settings_client.gui.autosave = index;
00426         this->SetDirty();
00427         break;
00428 
00429       case GOW_LANG_DROPDOWN: // Change interface language
00430         ReadLanguagePack(&_languages[index]);
00431         DeleteWindowByClass(WC_QUERY_STRING);
00432         CheckForMissingGlyphsInLoadedLanguagePack();
00433         UpdateAllVirtCoords();
00434         ReInitAllWindows();
00435         break;
00436 
00437       case GOW_RESOLUTION_DROPDOWN: // Change resolution
00438         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
00439           this->SetDirty();
00440         }
00441         break;
00442 
00443       case GOW_SCREENSHOT_DROPDOWN: // Change screenshot format
00444         SetScreenshotFormat(index);
00445         this->SetDirty();
00446         break;
00447 
00448       case GOW_BASE_GRF_DROPDOWN:
00449         this->SetMediaSet<BaseGraphics>(index);
00450         break;
00451 
00452       case GOW_BASE_SFX_DROPDOWN:
00453         this->SetMediaSet<BaseSounds>(index);
00454         break;
00455 
00456       case GOW_BASE_MUSIC_DROPDOWN:
00457         this->SetMediaSet<BaseMusic>(index);
00458         break;
00459     }
00460   }
00461 
00462   virtual void OnInvalidateData(int data)
00463   {
00464     this->SetWidgetLoweredState(GOW_FULLSCREEN_BUTTON, _fullscreen);
00465 
00466     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
00467     this->GetWidget<NWidgetCore>(GOW_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
00468 
00469     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
00470     this->GetWidget<NWidgetCore>(GOW_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
00471   }
00472 };
00473 
00474 static const NWidgetPart _nested_game_options_widgets[] = {
00475   NWidget(NWID_HORIZONTAL),
00476     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00477     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00478   EndContainer(),
00479   NWidget(WWT_PANEL, COLOUR_GREY, GOW_BACKGROUND), SetPIP(6, 6, 10),
00480     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
00481       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00482         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
00483           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_CURRENCY_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00484         EndContainer(),
00485         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
00486           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_ROADSIDE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00487         EndContainer(),
00488         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
00489           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
00490         EndContainer(),
00491         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
00492           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_RESOLUTION_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP), SetFill(1, 0), SetPadding(0, 0, 3, 0),
00493           NWidget(NWID_HORIZONTAL),
00494             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
00495             NWidget(WWT_TEXTBTN, COLOUR_GREY, GOW_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
00496           EndContainer(),
00497         EndContainer(),
00498       EndContainer(),
00499 
00500       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00501         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
00502           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_DISTANCE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_MEASURING_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00503         EndContainer(),
00504         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
00505           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_TOWNNAME_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_TOWN_NAMES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00506         EndContainer(),
00507         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
00508           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
00509         EndContainer(),
00510         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
00511           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_SCREENSHOT_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_SCREENSHOT_FORMAT_TOOLTIP), SetFill(1, 0),
00512         EndContainer(),
00513         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
00514       EndContainer(),
00515     EndContainer(),
00516 
00517     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
00518       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00519         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
00520         NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00521       EndContainer(),
00522       NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_GRF_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_GRF_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 0, 0),
00523     EndContainer(),
00524 
00525     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
00526       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00527         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
00528         NWidget(NWID_SPACER), SetFill(1, 0),
00529       EndContainer(),
00530       NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_SFX_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_SFX_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 0, 0),
00531     EndContainer(),
00532 
00533     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
00534       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00535         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
00536         NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00537       EndContainer(),
00538       NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_MUSIC_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 0, 0),
00539     EndContainer(),
00540   EndContainer(),
00541 };
00542 
00543 static const WindowDesc _game_options_desc(
00544   WDP_CENTER, 0, 0,
00545   WC_GAME_OPTIONS, WC_NONE,
00546   WDF_UNCLICK_BUTTONS,
00547   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
00548 );
00549 
00551 void ShowGameOptions()
00552 {
00553   DeleteWindowById(WC_GAME_OPTIONS, 0);
00554   new GameOptionsWindow(&_game_options_desc);
00555 }
00556 
00557 extern void StartupEconomy();
00558 
00559 
00560 /* Names of the game difficulty settings window */
00561 enum GameDifficultyWidgets {
00562   GDW_LVL_EASY,
00563   GDW_LVL_MEDIUM,
00564   GDW_LVL_HARD,
00565   GDW_LVL_CUSTOM,
00566   GDW_HIGHSCORE,
00567   GDW_ACCEPT,
00568   GDW_CANCEL,
00569 
00570   GDW_OPTIONS_START,
00571 };
00572 
00573 void SetDifficultyLevel(int mode, DifficultySettings *gm_opt);
00574 
00575 class GameDifficultyWindow : public Window {
00576 private:
00577   /* Temporary holding place of values in the difficulty window until 'Save' is clicked */
00578   GameSettings opt_mod_temp;
00579 
00580 public:
00582   static const uint GAME_DIFFICULTY_NUM = 18;
00584   static const uint WIDGETS_PER_DIFFICULTY = 3;
00585 
00586   GameDifficultyWindow(const WindowDesc *desc) : Window()
00587   {
00588     this->InitNested(desc);
00589 
00590     /* Copy current settings (ingame or in intro) to temporary holding place
00591      * change that when setting stuff, copy back on clicking 'OK' */
00592     this->opt_mod_temp = GetGameSettings();
00593     /* Setup disabled buttons when creating window
00594      * disable all other difficulty buttons during gameplay except for 'custom' */
00595     this->SetWidgetsDisabledState(_game_mode != GM_MENU,
00596       GDW_LVL_EASY,
00597       GDW_LVL_MEDIUM,
00598       GDW_LVL_HARD,
00599       GDW_LVL_CUSTOM,
00600       WIDGET_LIST_END);
00601     this->SetWidgetDisabledState(GDW_HIGHSCORE, _game_mode == GM_EDITOR || _networking); // highscore chart in multiplayer
00602     this->SetWidgetDisabledState(GDW_ACCEPT, _networking && !_network_server); // Save-button in multiplayer (and if client)
00603     this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00604     this->OnInvalidateData();
00605   }
00606 
00607   virtual void SetStringParameters(int widget) const
00608   {
00609     widget -= GDW_OPTIONS_START;
00610     if (widget < 0 || (widget % 3) != 2) return;
00611 
00612     widget /= 3;
00613 
00614     uint i;
00615     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + widget;
00616     int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00617     SetDParam(0, sd->desc.str + value);
00618   }
00619 
00620   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00621   {
00622     /* Only for the 'descriptions' */
00623     int index = widget - GDW_OPTIONS_START;
00624     if (index < 0 || (index % 3) != 2) return;
00625 
00626     index /= 3;
00627 
00628     uint i;
00629     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + index;
00630     const SettingDescBase *sdb = &sd->desc;
00631 
00632     /* Get the string and try all strings from the smallest to the highest value */
00633     StringID str = this->GetWidget<NWidgetCore>(widget)->widget_data;
00634     for (int32 value = sdb->min; (uint32)value <= sdb->max; value += sdb->interval) {
00635       SetDParam(0, sdb->str + value);
00636       *size = maxdim(*size, GetStringBoundingBox(str));
00637     }
00638   }
00639 
00640   virtual void OnClick(Point pt, int widget, int click_count)
00641   {
00642     if (widget >= GDW_OPTIONS_START) {
00643       widget -= GDW_OPTIONS_START;
00644       if ((widget % 3) == 2) return;
00645 
00646       /* Don't allow clients to make any changes */
00647       if (_networking && !_network_server) return;
00648 
00649       uint i;
00650       const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + (widget / 3);
00651       const SettingDescBase *sdb = &sd->desc;
00652 
00653       int32 val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00654       if (widget % 3 == 1) {
00655         /* Increase button clicked */
00656         val = min(val + sdb->interval, (int32)sdb->max);
00657       } else {
00658         /* Decrease button clicked */
00659         val -= sdb->interval;
00660         val = max(val, sdb->min);
00661       }
00662 
00663       /* save value in temporary variable */
00664       WriteValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv, val);
00665       this->RaiseWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00666       SetDifficultyLevel(3, &this->opt_mod_temp.difficulty); // set difficulty level to custom
00667       this->LowerWidget(GDW_LVL_CUSTOM);
00668       this->InvalidateData();
00669 
00670       if (widget / 3 == 0 &&
00671 #ifdef ENABLE_AI
00672           AI::GetInfoList()->size() == 0 &&
00673 #endif /* ENABLE_AI */
00674           this->opt_mod_temp.difficulty.max_no_competitors != 0) {
00675         ShowErrorMessage(STR_WARNING_NO_SUITABLE_AI, INVALID_STRING_ID, WL_CRITICAL);
00676       }
00677       return;
00678     }
00679 
00680     switch (widget) {
00681       case GDW_LVL_EASY:
00682       case GDW_LVL_MEDIUM:
00683       case GDW_LVL_HARD:
00684       case GDW_LVL_CUSTOM:
00685         /* temporarily change difficulty level */
00686         this->RaiseWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00687         SetDifficultyLevel(widget - GDW_LVL_EASY, &this->opt_mod_temp.difficulty);
00688         this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00689         this->InvalidateData();
00690         break;
00691 
00692       case GDW_HIGHSCORE: // Highscore Table
00693         ShowHighscoreTable(this->opt_mod_temp.difficulty.diff_level, -1);
00694         break;
00695 
00696       case GDW_ACCEPT: { // Save button - save changes
00697         GameSettings *opt_ptr = &GetGameSettings();
00698 
00699         uint i;
00700         GetSettingFromName("difficulty.diff_level", &i);
00701         DoCommandP(0, i, this->opt_mod_temp.difficulty.diff_level, CMD_CHANGE_SETTING);
00702 
00703         const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00704         for (uint btn = 0; btn != GAME_DIFFICULTY_NUM; btn++, sd++) {
00705           int32 new_val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00706           int32 cur_val = (int32)ReadValue(GetVariableAddress(opt_ptr, &sd->save), sd->save.conv);
00707           /* if setting has changed, change it */
00708           if (new_val != cur_val) {
00709             DoCommandP(0, i + btn, new_val, CMD_CHANGE_SETTING);
00710           }
00711         }
00712         delete this;
00713         /* If we are in the editor, we should reload the economy.
00714          * This way when you load a game, the max loan and interest rate
00715          * are loaded correctly. */
00716         if (_game_mode == GM_EDITOR) StartupEconomy();
00717         break;
00718       }
00719 
00720       case GDW_CANCEL: // Cancel button - close window, abandon changes
00721         delete this;
00722         break;
00723     }
00724   }
00725 
00726   virtual void OnInvalidateData(int data = 0)
00727   {
00728     uint i;
00729     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00730     for (i = 0; i < GAME_DIFFICULTY_NUM; i++, sd++) {
00731       const SettingDescBase *sdb = &sd->desc;
00732       /* skip deprecated difficulty options */
00733       if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
00734       int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00735       bool disable = (sd->desc.flags & SGF_NEWGAME_ONLY) &&
00736           (_game_mode == GM_NORMAL ||
00737           (_game_mode == GM_EDITOR && (sd->desc.flags & SGF_SCENEDIT_TOO) == 0));
00738 
00739       this->SetWidgetDisabledState(GDW_OPTIONS_START + i * 3 + 0, disable || sdb->min == value);
00740       this->SetWidgetDisabledState(GDW_OPTIONS_START + i * 3 + 1, disable || sdb->max == (uint32)value);
00741     }
00742   }
00743 };
00744 
00745 static NWidgetBase *MakeDifficultyOptionsWidgets(int *biggest_index)
00746 {
00747   NWidgetVertical *vert_desc = new NWidgetVertical;
00748 
00749   int widnum = GDW_OPTIONS_START;
00750   uint i, j;
00751   const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00752 
00753   for (i = 0, j = 0; i < GameDifficultyWindow::GAME_DIFFICULTY_NUM; i++, sd++, widnum += GameDifficultyWindow::WIDGETS_PER_DIFFICULTY) {
00754     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
00755 
00756     NWidgetHorizontal *hor = new NWidgetHorizontal;
00757 
00758     /* [<] button. */
00759     NWidgetLeaf *leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum, AWV_DECREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
00760     hor->Add(leaf);
00761 
00762     /* [>] button. */
00763     leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum + 1, AWV_INCREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
00764     hor->Add(leaf);
00765 
00766     /* Some spacing between the text and the description */
00767     NWidgetSpacer *spacer = new NWidgetSpacer(5, 0);
00768     hor->Add(spacer);
00769 
00770     /* Descriptive text. */
00771     leaf = new NWidgetLeaf(WWT_TEXT, COLOUR_YELLOW, widnum + 2, STR_DIFFICULTY_LEVEL_SETTING_MAXIMUM_NO_COMPETITORS + (j++), STR_NULL);
00772     leaf->SetFill(1, 0);
00773     hor->Add(leaf);
00774     vert_desc->Add(hor);
00775 
00776     /* Space vertically */
00777     vert_desc->Add(new NWidgetSpacer(0, 2));
00778   }
00779   *biggest_index = widnum - 1;
00780   return vert_desc;
00781 }
00782 
00783 
00785 static const NWidgetPart _nested_game_difficulty_widgets[] = {
00786   NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_DIFFICULTY_LEVEL_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00787   NWidget(WWT_PANEL, COLOUR_MAUVE),
00788     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
00789       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
00790         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_EASY), SetDataTip(STR_DIFFICULTY_LEVEL_EASY, STR_NULL), SetFill(1, 0),
00791         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_MEDIUM), SetDataTip(STR_DIFFICULTY_LEVEL_MEDIUM, STR_NULL), SetFill(1, 0),
00792         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_HARD), SetDataTip(STR_DIFFICULTY_LEVEL_HARD, STR_NULL), SetFill(1, 0),
00793         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_CUSTOM), SetDataTip(STR_DIFFICULTY_LEVEL_CUSTOM, STR_NULL), SetFill(1, 0),
00794       EndContainer(),
00795       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 10),
00796         NWidget(WWT_PUSHTXTBTN, COLOUR_GREEN, GDW_HIGHSCORE), SetDataTip(STR_DIFFICULTY_LEVEL_HIGH_SCORE_BUTTON, STR_NULL), SetFill(1, 0),
00797       EndContainer(),
00798     EndContainer(),
00799   EndContainer(),
00800   NWidget(WWT_PANEL, COLOUR_MAUVE),
00801     NWidget(NWID_VERTICAL), SetPIP(3, 0, 1),
00802       NWidget(NWID_HORIZONTAL), SetPIP(5, 0, 5),
00803         NWidgetFunction(MakeDifficultyOptionsWidgets),
00804       EndContainer(),
00805     EndContainer(),
00806   EndContainer(),
00807   NWidget(WWT_PANEL, COLOUR_MAUVE),
00808     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
00809       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
00810         NWidget(NWID_SPACER), SetFill(1, 0),
00811         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, GDW_ACCEPT), SetDataTip(STR_DIFFICULTY_LEVEL_SAVE, STR_NULL), SetFill(1, 0),
00812         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, GDW_CANCEL), SetDataTip(STR_BUTTON_CANCEL, STR_NULL), SetFill(1, 0),
00813         NWidget(NWID_SPACER), SetFill(1, 0),
00814       EndContainer(),
00815     EndContainer(),
00816   EndContainer(),
00817 };
00818 
00820 static const WindowDesc _game_difficulty_desc(
00821   WDP_CENTER, 0, 0,
00822   WC_GAME_OPTIONS, WC_NONE,
00823   WDF_UNCLICK_BUTTONS,
00824   _nested_game_difficulty_widgets, lengthof(_nested_game_difficulty_widgets)
00825 );
00826 
00828 void ShowGameDifficulty()
00829 {
00830   DeleteWindowById(WC_GAME_OPTIONS, 0);
00831   new GameDifficultyWindow(&_game_difficulty_desc);
00832 }
00833 
00834 static int SETTING_HEIGHT = 11;    
00835 static const int LEVEL_WIDTH = 15; 
00836 
00841 enum SettingEntryFlags {
00842   SEF_LEFT_DEPRESSED  = 0x01, 
00843   SEF_RIGHT_DEPRESSED = 0x02, 
00844   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), 
00845 
00846   SEF_LAST_FIELD = 0x04, 
00847 
00848   /* Entry kind */
00849   SEF_SETTING_KIND = 0x10, 
00850   SEF_SUBTREE_KIND = 0x20, 
00851   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND), 
00852 };
00853 
00854 struct SettingsPage; // Forward declaration
00855 
00857 struct SettingEntrySubtree {
00858   SettingsPage *page; 
00859   bool folded;        
00860   StringID title;     
00861 };
00862 
00864 struct SettingEntrySetting {
00865   const char *name;           
00866   const SettingDesc *setting; 
00867   uint index;                 
00868 };
00869 
00871 struct SettingEntry {
00872   byte flags; 
00873   byte level; 
00874   union {
00875     SettingEntrySetting entry; 
00876     SettingEntrySubtree sub;   
00877   } d; 
00878 
00879   SettingEntry(const char *nm);
00880   SettingEntry(SettingsPage *sub, StringID title);
00881 
00882   void Init(byte level, bool last_field);
00883   void FoldAll();
00884   void SetButtons(byte new_val);
00885 
00886   uint Length() const;
00887   SettingEntry *FindEntry(uint row, uint *cur_row);
00888 
00889   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);
00890 
00891 private:
00892   void DrawSetting(GameSettings *settings_ptr, const SettingDesc *sd, int x, int y, int max_x, int state);
00893 };
00894 
00896 struct SettingsPage {
00897   SettingEntry *entries; 
00898   byte num;              
00899 
00900   void Init(byte level = 0);
00901   void FoldAll();
00902 
00903   uint Length() const;
00904   SettingEntry *FindEntry(uint row, uint *cur_row) const;
00905 
00906   uint Draw(GameSettings *settings_ptr, int base_x, int base_y, int max_x, uint first_row, uint max_row, uint cur_row = 0, uint parent_last = 0) const;
00907 };
00908 
00909 
00910 /* == SettingEntry methods == */
00911 
00916 SettingEntry::SettingEntry(const char *nm)
00917 {
00918   this->flags = SEF_SETTING_KIND;
00919   this->level = 0;
00920   this->d.entry.name = nm;
00921   this->d.entry.setting = NULL;
00922   this->d.entry.index = 0;
00923 }
00924 
00930 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
00931 {
00932   this->flags = SEF_SUBTREE_KIND;
00933   this->level = 0;
00934   this->d.sub.page = sub;
00935   this->d.sub.folded = true;
00936   this->d.sub.title = title;
00937 }
00938 
00944 void SettingEntry::Init(byte level, bool last_field)
00945 {
00946   this->level = level;
00947   if (last_field) this->flags |= SEF_LAST_FIELD;
00948 
00949   switch (this->flags & SEF_KIND_MASK) {
00950     case SEF_SETTING_KIND:
00951       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
00952       assert(this->d.entry.setting != NULL);
00953       break;
00954     case SEF_SUBTREE_KIND:
00955       this->d.sub.page->Init(level + 1);
00956       break;
00957     default: NOT_REACHED();
00958   }
00959 }
00960 
00962 void SettingEntry::FoldAll()
00963 {
00964   switch (this->flags & SEF_KIND_MASK) {
00965     case SEF_SETTING_KIND:
00966       break;
00967 
00968     case SEF_SUBTREE_KIND:
00969       this->d.sub.folded = true;
00970       this->d.sub.page->FoldAll();
00971       break;
00972 
00973     default: NOT_REACHED();
00974   }
00975 }
00976 
00977 
00983 void SettingEntry::SetButtons(byte new_val)
00984 {
00985   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
00986   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
00987 }
00988 
00990 uint SettingEntry::Length() const
00991 {
00992   switch (this->flags & SEF_KIND_MASK) {
00993     case SEF_SETTING_KIND:
00994       return 1;
00995     case SEF_SUBTREE_KIND:
00996       if (this->d.sub.folded) return 1; // Only displaying the title
00997 
00998       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
00999     default: NOT_REACHED();
01000   }
01001 }
01002 
01009 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
01010 {
01011   if (row_num == *cur_row) return this;
01012 
01013   switch (this->flags & SEF_KIND_MASK) {
01014     case SEF_SETTING_KIND:
01015       (*cur_row)++;
01016       break;
01017     case SEF_SUBTREE_KIND:
01018       (*cur_row)++; // add one for row containing the title
01019       if (this->d.sub.folded) {
01020         break;
01021       }
01022 
01023       /* sub-page is visible => search it too */
01024       return this->d.sub.page->FindEntry(row_num, cur_row);
01025     default: NOT_REACHED();
01026   }
01027   return NULL;
01028 }
01029 
01056 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)
01057 {
01058   if (cur_row >= max_row) return cur_row;
01059 
01060   bool rtl = _current_text_dir == TD_RTL;
01061   int offset = rtl ? -4 : 4;
01062   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
01063 
01064   int x = rtl ? right : left;
01065   int y = base_y;
01066   if (cur_row >= first_row) {
01067     int colour = _colour_gradient[COLOUR_ORANGE][4];
01068     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
01069 
01070     /* Draw vertical for parent nesting levels */
01071     for (uint lvl = 0; lvl < this->level; lvl++) {
01072       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
01073       x += level_width;
01074     }
01075     /* draw own |- prefix */
01076     int halfway_y = y + SETTING_HEIGHT / 2;
01077     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
01078     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
01079     /* Small horizontal line from the last vertical line */
01080     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
01081     x += level_width;
01082   }
01083 
01084   switch (this->flags & SEF_KIND_MASK) {
01085     case SEF_SETTING_KIND:
01086       if (cur_row >= first_row) {
01087         DrawSetting(settings_ptr, this->d.entry.setting, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK);
01088       }
01089       cur_row++;
01090       break;
01091     case SEF_SUBTREE_KIND:
01092       if (cur_row >= first_row) {
01093         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
01094         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
01095       }
01096       cur_row++;
01097       if (!this->d.sub.folded) {
01098         if (this->flags & SEF_LAST_FIELD) {
01099           assert(this->level < sizeof(parent_last));
01100           SetBit(parent_last, this->level); // Add own last-field state
01101         }
01102 
01103         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last);
01104       }
01105       break;
01106     default: NOT_REACHED();
01107   }
01108   return cur_row;
01109 }
01110 
01111 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
01112 {
01113   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01114     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01115       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
01116     } else {
01117       return GetVariableAddress(&_settings_client.company, &sd->save);
01118     }
01119   } else {
01120     return GetVariableAddress(settings_ptr, &sd->save);
01121   }
01122 }
01123 
01133 void SettingEntry::DrawSetting(GameSettings *settings_ptr, const SettingDesc *sd, int left, int right, int y, int state)
01134 {
01135   const SettingDescBase *sdb = &sd->desc;
01136   const void *var = ResolveVariableAddress(settings_ptr, sd);
01137   bool editable = true;
01138   bool disabled = false;
01139 
01140   bool rtl = _current_text_dir == TD_RTL;
01141   uint buttons_left = rtl ? right - 19 : left;
01142   uint text_left  = left + (rtl ? 0 : 25);
01143   uint text_right = right - (rtl ? 25 : 0);
01144   uint button_y = y + (SETTING_HEIGHT - 11) / 2;
01145 
01146   /* We do not allow changes of some items when we are a client in a networkgame */
01147   if (!(sd->save.conv & SLF_NETWORK_NO) && _networking && !_network_server && !(sdb->flags & SGF_PER_COMPANY)) editable = false;
01148   if ((sdb->flags & SGF_NETWORK_ONLY) && !_networking) editable = false;
01149   if ((sdb->flags & SGF_NO_NETWORK) && _networking) editable = false;
01150 
01151   if (sdb->cmd == SDT_BOOLX) {
01152     static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
01153     /* Draw checkbox for boolean-value either on/off */
01154     bool on = ReadValue(var, sd->save.conv) != 0;
01155 
01156     DrawFrameRect(buttons_left, button_y, buttons_left + 19, button_y + 8, _bool_ctabs[!!on][!!editable], on ? FR_LOWERED : FR_NONE);
01157     SetDParam(0, on ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
01158   } else {
01159     int32 value;
01160 
01161     value = (int32)ReadValue(var, sd->save.conv);
01162 
01163     /* Draw [<][>] boxes for settings of an integer-type */
01164     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state, editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
01165 
01166     disabled = (value == 0) && (sdb->flags & SGF_0ISDISABLED);
01167     if (disabled) {
01168       SetDParam(0, STR_CONFIG_SETTING_DISABLED);
01169     } else {
01170       if (sdb->flags & SGF_CURRENCY) {
01171         SetDParam(0, STR_JUST_CURRENCY);
01172       } else if (sdb->flags & SGF_MULTISTRING) {
01173         SetDParam(0, sdb->str - sdb->min + value + 1);
01174       } else {
01175         SetDParam(0, (sdb->flags & SGF_NOCOMMA) ? STR_JUST_INT : STR_JUST_COMMA);
01176       }
01177       SetDParam(1, value);
01178     }
01179   }
01180   DrawString(text_left, text_right, y, (sdb->str) + disabled);
01181 }
01182 
01183 
01184 /* == SettingsPage methods == */
01185 
01190 void SettingsPage::Init(byte level)
01191 {
01192   for (uint field = 0; field < this->num; field++) {
01193     this->entries[field].Init(level, field + 1 == num);
01194   }
01195 }
01196 
01198 void SettingsPage::FoldAll()
01199 {
01200   for (uint field = 0; field < this->num; field++) {
01201     this->entries[field].FoldAll();
01202   }
01203 }
01204 
01206 uint SettingsPage::Length() const
01207 {
01208   uint length = 0;
01209   for (uint field = 0; field < this->num; field++) {
01210     length += this->entries[field].Length();
01211   }
01212   return length;
01213 }
01214 
01221 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
01222 {
01223   SettingEntry *pe = NULL;
01224 
01225   for (uint field = 0; field < this->num; field++) {
01226     pe = this->entries[field].FindEntry(row_num, cur_row);
01227     if (pe != NULL) {
01228       break;
01229     }
01230   }
01231   return pe;
01232 }
01233 
01251 uint SettingsPage::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, uint cur_row, uint parent_last) const
01252 {
01253   if (cur_row >= max_row) return cur_row;
01254 
01255   for (uint i = 0; i < this->num; i++) {
01256     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last);
01257     if (cur_row >= max_row) {
01258       break;
01259     }
01260   }
01261   return cur_row;
01262 }
01263 
01264 
01265 static SettingEntry _settings_ui_display[] = {
01266   SettingEntry("gui.vehicle_speed"),
01267   SettingEntry("gui.status_long_date"),
01268   SettingEntry("gui.date_format_in_default_names"),
01269   SettingEntry("gui.population_in_label"),
01270   SettingEntry("gui.measure_tooltip"),
01271   SettingEntry("gui.loading_indicators"),
01272   SettingEntry("gui.liveries"),
01273   SettingEntry("gui.show_track_reservation"),
01274   SettingEntry("gui.expenses_layout"),
01275   SettingEntry("gui.smallmap_land_colour"),
01276 };
01278 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
01279 
01280 static SettingEntry _settings_ui_interaction[] = {
01281   SettingEntry("gui.window_snap_radius"),
01282   SettingEntry("gui.window_soft_limit"),
01283   SettingEntry("gui.link_terraform_toolbar"),
01284   SettingEntry("gui.prefer_teamchat"),
01285   SettingEntry("gui.autoscroll"),
01286   SettingEntry("gui.reverse_scroll"),
01287   SettingEntry("gui.smooth_scroll"),
01288   SettingEntry("gui.left_mouse_btn_scrolling"),
01289   /* While the horizontal scrollwheel scrolling is written as general code, only
01290    *  the cocoa (OSX) driver generates input for it.
01291    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
01292   SettingEntry("gui.scrollwheel_scrolling"),
01293   SettingEntry("gui.scrollwheel_multiplier"),
01294 #ifdef __APPLE__
01295   /* We might need to emulate a right mouse button on mac */
01296   SettingEntry("gui.right_mouse_btn_emulation"),
01297 #endif
01298 };
01300 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
01301 
01302 static SettingEntry _settings_ui[] = {
01303   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
01304   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
01305   SettingEntry("gui.show_finances"),
01306   SettingEntry("gui.errmsg_duration"),
01307   SettingEntry("gui.hover_delay"),
01308   SettingEntry("gui.toolbar_pos"),
01309   SettingEntry("gui.statusbar_pos"),
01310   SettingEntry("gui.pause_on_newgame"),
01311   SettingEntry("gui.advanced_vehicle_list"),
01312   SettingEntry("gui.timetable_in_ticks"),
01313   SettingEntry("gui.timetable_arrival_departure"),
01314   SettingEntry("gui.quick_goto"),
01315   SettingEntry("gui.default_rail_type"),
01316   SettingEntry("gui.disable_unsuitable_building"),
01317   SettingEntry("gui.persistent_buildingtools"),
01318   SettingEntry("gui.coloured_news_year"),
01319 };
01321 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
01322 
01323 static SettingEntry _settings_construction_signals[] = {
01324   SettingEntry("construction.signal_side"),
01325   SettingEntry("gui.enable_signal_gui"),
01326   SettingEntry("gui.drag_signals_density"),
01327   SettingEntry("gui.semaphore_build_before"),
01328   SettingEntry("gui.default_signal_type"),
01329   SettingEntry("gui.cycle_signal_types"),
01330 };
01332 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
01333 
01334 static SettingEntry _settings_construction[] = {
01335   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
01336   SettingEntry("construction.build_on_slopes"),
01337   SettingEntry("construction.autoslope"),
01338   SettingEntry("construction.extra_dynamite"),
01339   SettingEntry("construction.longbridges"),
01340   SettingEntry("station.never_expire_airports"),
01341   SettingEntry("construction.freeform_edges"),
01342   SettingEntry("construction.extra_tree_placement"),
01343   SettingEntry("construction.command_pause_level"),
01344 };
01346 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
01347 
01348 static SettingEntry _settings_stations_cargo[] = {
01349   SettingEntry("order.improved_load"),
01350   SettingEntry("order.gradual_loading"),
01351   SettingEntry("order.selectgoods"),
01352 };
01354 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
01355 
01356 static SettingEntry _settings_stations[] = {
01357   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
01358   SettingEntry("station.join_stations"),
01359   SettingEntry("station.nonuniform_stations"),
01360   SettingEntry("station.adjacent_stations"),
01361   SettingEntry("station.distant_join_stations"),
01362   SettingEntry("station.station_spread"),
01363   SettingEntry("economy.station_noise_level"),
01364   SettingEntry("station.modified_catchment"),
01365   SettingEntry("construction.road_stop_on_town_road"),
01366   SettingEntry("construction.road_stop_on_competitor_road"),
01367 };
01369 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
01370 
01371 static SettingEntry _settings_economy_towns[] = {
01372   SettingEntry("economy.bribe"),
01373   SettingEntry("economy.exclusive_rights"),
01374   SettingEntry("economy.town_layout"),
01375   SettingEntry("economy.allow_town_roads"),
01376   SettingEntry("economy.allow_town_level_crossings"),
01377   SettingEntry("economy.found_town"),
01378   SettingEntry("economy.mod_road_rebuild"),
01379   SettingEntry("economy.town_growth_rate"),
01380   SettingEntry("economy.larger_towns"),
01381   SettingEntry("economy.initial_city_size"),
01382 };
01384 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
01385 
01386 static SettingEntry _settings_economy_industries[] = {
01387   SettingEntry("construction.raw_industry_construction"),
01388   SettingEntry("construction.industry_platform"),
01389   SettingEntry("economy.multiple_industry_per_town"),
01390   SettingEntry("game_creation.oil_refinery_limit"),
01391 };
01393 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
01394 
01395 static SettingEntry _settings_economy[] = {
01396   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
01397   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
01398   SettingEntry("economy.inflation"),
01399   SettingEntry("economy.smooth_economy"),
01400   SettingEntry("economy.feeder_payment_share"),
01401 };
01403 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
01404 
01405 static SettingEntry _settings_ai_npc[] = {
01406   SettingEntry("ai.ai_in_multiplayer"),
01407   SettingEntry("ai.ai_disable_veh_train"),
01408   SettingEntry("ai.ai_disable_veh_roadveh"),
01409   SettingEntry("ai.ai_disable_veh_aircraft"),
01410   SettingEntry("ai.ai_disable_veh_ship"),
01411   SettingEntry("ai.ai_max_opcode_till_suspend"),
01412 };
01414 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
01415 
01416 static SettingEntry _settings_ai[] = {
01417   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
01418   SettingEntry("economy.give_money"),
01419   SettingEntry("economy.allow_shares"),
01420 };
01422 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
01423 
01424 static SettingEntry _settings_vehicles_routing[] = {
01425   SettingEntry("pf.pathfinder_for_trains"),
01426   SettingEntry("pf.forbid_90_deg"),
01427   SettingEntry("pf.pathfinder_for_roadvehs"),
01428   SettingEntry("pf.roadveh_queue"),
01429   SettingEntry("pf.pathfinder_for_ships"),
01430 };
01432 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
01433 
01434 static SettingEntry _settings_vehicles_autorenew[] = {
01435   SettingEntry("company.engine_renew"),
01436   SettingEntry("company.engine_renew_months"),
01437   SettingEntry("company.engine_renew_money"),
01438 };
01440 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
01441 
01442 static SettingEntry _settings_vehicles_servicing[] = {
01443   SettingEntry("vehicle.servint_ispercent"),
01444   SettingEntry("vehicle.servint_trains"),
01445   SettingEntry("vehicle.servint_roadveh"),
01446   SettingEntry("vehicle.servint_ships"),
01447   SettingEntry("vehicle.servint_aircraft"),
01448   SettingEntry("order.no_servicing_if_no_breakdowns"),
01449   SettingEntry("order.serviceathelipad"),
01450 };
01452 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
01453 
01454 static SettingEntry _settings_vehicles_trains[] = {
01455   SettingEntry("vehicle.train_acceleration_model"),
01456   SettingEntry("vehicle.train_slope_steepness"),
01457   SettingEntry("vehicle.mammoth_trains"),
01458   SettingEntry("vehicle.wagon_speed_limits"),
01459   SettingEntry("vehicle.disable_elrails"),
01460   SettingEntry("vehicle.freight_trains"),
01461   SettingEntry("gui.stop_location"),
01462 };
01464 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
01465 
01466 static SettingEntry _settings_vehicles[] = {
01467   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
01468   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
01469   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
01470   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
01471   SettingEntry("order.gotodepot"),
01472   SettingEntry("gui.new_nonstop"),
01473   SettingEntry("gui.order_review_system"),
01474   SettingEntry("gui.vehicle_income_warn"),
01475   SettingEntry("gui.lost_vehicle_warn"),
01476   SettingEntry("vehicle.never_expire_vehicles"),
01477   SettingEntry("vehicle.max_trains"),
01478   SettingEntry("vehicle.max_roadveh"),
01479   SettingEntry("vehicle.max_aircraft"),
01480   SettingEntry("vehicle.max_ships"),
01481   SettingEntry("vehicle.plane_speed"),
01482   SettingEntry("vehicle.plane_crashes"),
01483   SettingEntry("order.timetabling"),
01484   SettingEntry("vehicle.dynamic_engines"),
01485   SettingEntry("vehicle.roadveh_acceleration_model"),
01486   SettingEntry("vehicle.roadveh_slope_steepness"),
01487   SettingEntry("vehicle.smoke_amount"),
01488 };
01490 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
01491 
01492 static SettingEntry _settings_main[] = {
01493   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
01494   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
01495   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
01496   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
01497   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
01498   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
01499 };
01500 
01502 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
01503 
01505 enum GameSettingsWidgets {
01506   SETTINGSEL_OPTIONSPANEL, 
01507   SETTINGSEL_SCROLLBAR,    
01508 };
01509 
01510 struct GameSettingsWindow : Window {
01511   static const int SETTINGTREE_LEFT_OFFSET   = 5; 
01512   static const int SETTINGTREE_RIGHT_OFFSET  = 5; 
01513   static const int SETTINGTREE_TOP_OFFSET    = 5; 
01514   static const int SETTINGTREE_BOTTOM_OFFSET = 5; 
01515 
01516   static GameSettings *settings_ptr;  
01517 
01518   SettingEntry *valuewindow_entry; 
01519   SettingEntry *clicked_entry; 
01520 
01521   Scrollbar *vscroll;
01522 
01523   GameSettingsWindow(const WindowDesc *desc) : Window()
01524   {
01525     static bool first_time = true;
01526 
01527     settings_ptr = &GetGameSettings();
01528 
01529     /* Build up the dynamic settings-array only once per OpenTTD session */
01530     if (first_time) {
01531       _settings_main_page.Init();
01532       first_time = false;
01533     } else {
01534       _settings_main_page.FoldAll(); // Close all sub-pages
01535     }
01536 
01537     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
01538     this->clicked_entry = NULL; // No numeric setting buttons are depressed
01539 
01540     this->CreateNestedTree(desc);
01541     this->vscroll = this->GetScrollbar(SETTINGSEL_SCROLLBAR);
01542     this->FinishInitNested(desc, 0);
01543 
01544     this->vscroll->SetCount(_settings_main_page.Length());
01545   }
01546 
01547   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01548   {
01549     if (widget != SETTINGSEL_OPTIONSPANEL) return;
01550 
01551     resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
01552     resize->width  = 1;
01553 
01554     size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
01555   }
01556 
01557   virtual void DrawWidget(const Rect &r, int widget) const
01558   {
01559     if (widget != SETTINGSEL_OPTIONSPANEL) return;
01560 
01561     _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
01562         this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity());
01563   }
01564 
01565   virtual void OnClick(Point pt, int widget, int click_count)
01566   {
01567     if (widget != SETTINGSEL_OPTIONSPANEL) return;
01568 
01569     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, SETTINGSEL_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET - 1);
01570     if (btn == INT_MAX) return;
01571 
01572     uint cur_row = 0;
01573     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
01574 
01575     if (pe == NULL) return;  // Clicked below the last setting of the page
01576 
01577     int x = (_current_text_dir == TD_RTL ? this->width - pt.x : pt.x) - SETTINGTREE_LEFT_OFFSET - (pe->level + 1) * LEVEL_WIDTH;  // Shift x coordinate
01578     if (x < 0) return;  // Clicked left of the entry
01579 
01580     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
01581       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
01582 
01583       this->vscroll->SetCount(_settings_main_page.Length());
01584       this->SetDirty();
01585       return;
01586     }
01587 
01588     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01589     const SettingDesc *sd = pe->d.entry.setting;
01590 
01591     /* return if action is only active in network, or only settable by server */
01592     if (!(sd->save.conv & SLF_NETWORK_NO) && _networking && !_network_server && !(sd->desc.flags & SGF_PER_COMPANY)) return;
01593     if ((sd->desc.flags & SGF_NETWORK_ONLY) && !_networking) return;
01594     if ((sd->desc.flags & SGF_NO_NETWORK) && _networking) return;
01595 
01596     const void *var = ResolveVariableAddress(settings_ptr, sd);
01597     int32 value = (int32)ReadValue(var, sd->save.conv);
01598 
01599     /* clicked on the icon on the left side. Either scroller or bool on/off */
01600     if (x < 21) {
01601       const SettingDescBase *sdb = &sd->desc;
01602       int32 oldvalue = value;
01603 
01604       switch (sdb->cmd) {
01605         case SDT_BOOLX: value ^= 1; break;
01606         case SDT_ONEOFMANY:
01607         case SDT_NUMX: {
01608           /* Add a dynamic step-size to the scroller. In a maximum of
01609            * 50-steps you should be able to get from min to max,
01610            * unless specified otherwise in the 'interval' variable
01611            * of the current setting. */
01612           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
01613           if (step == 0) step = 1;
01614 
01615           /* don't allow too fast scrolling */
01616           if ((this->flags4 & WF_TIMEOUT_MASK) > WF_TIMEOUT_TRIGGER) {
01617             _left_button_clicked = false;
01618             return;
01619           }
01620 
01621           /* Increase or decrease the value and clamp it to extremes */
01622           if (x >= 10) {
01623             value += step;
01624             if (sdb->min < 0) {
01625               assert((int32)sdb->max >= 0);
01626               if (value > (int32)sdb->max) value = (int32)sdb->max;
01627             } else {
01628               if ((uint32)value > sdb->max) value = (int32)sdb->max;
01629             }
01630             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
01631           } else {
01632             value -= step;
01633             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
01634           }
01635 
01636           /* Set up scroller timeout for numeric values */
01637           if (value != oldvalue && !(sd->desc.flags & SGF_MULTISTRING)) {
01638             if (this->clicked_entry != NULL) { // Release previous buttons if any
01639               this->clicked_entry->SetButtons(0);
01640             }
01641             this->clicked_entry = pe;
01642             this->clicked_entry->SetButtons((x >= 10) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
01643             this->flags4 |= WF_TIMEOUT_BEGIN;
01644             _left_button_clicked = false;
01645           }
01646           break;
01647         }
01648 
01649         default: NOT_REACHED();
01650       }
01651 
01652       if (value != oldvalue) {
01653         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01654           SetCompanySetting(pe->d.entry.index, value);
01655         } else {
01656           SetSettingValue(pe->d.entry.index, value);
01657         }
01658         this->SetDirty();
01659       }
01660     } else {
01661       /* only open editbox for types that its sensible for */
01662       if (sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
01663         /* Show the correct currency-translated value */
01664         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
01665 
01666         this->valuewindow_entry = pe;
01667         SetDParam(0, value);
01668         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, 100, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
01669       }
01670     }
01671   }
01672 
01673   virtual void OnTimeout()
01674   {
01675     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
01676       this->clicked_entry->SetButtons(0);
01677       this->clicked_entry = NULL;
01678       this->SetDirty();
01679     }
01680   }
01681 
01682   virtual void OnQueryTextFinished(char *str)
01683   {
01684     /* The user pressed cancel */
01685     if (str == NULL) return;
01686 
01687     assert(this->valuewindow_entry != NULL);
01688     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01689     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
01690 
01691     int32 value;
01692     if (!StrEmpty(str)) {
01693       value = atoi(str);
01694 
01695       /* Save the correct currency-translated value */
01696       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
01697     } else {
01698       value = (int32)(size_t)sd->desc.def;
01699     }
01700 
01701     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01702       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
01703     } else {
01704       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
01705     }
01706     this->SetDirty();
01707   }
01708 
01709   virtual void OnResize()
01710   {
01711     this->vscroll->SetCapacityFromWidget(this, SETTINGSEL_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
01712   }
01713 };
01714 
01715 GameSettings *GameSettingsWindow::settings_ptr = NULL;
01716 
01717 static const NWidgetPart _nested_settings_selection_widgets[] = {
01718   NWidget(NWID_HORIZONTAL),
01719     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
01720     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01721   EndContainer(),
01722   NWidget(NWID_HORIZONTAL),
01723     NWidget(WWT_PANEL, COLOUR_MAUVE, SETTINGSEL_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(SETTINGSEL_SCROLLBAR), EndContainer(),
01724     NWidget(NWID_VERTICAL),
01725       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, SETTINGSEL_SCROLLBAR),
01726       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
01727     EndContainer(),
01728   EndContainer(),
01729 };
01730 
01731 static const WindowDesc _settings_selection_desc(
01732   WDP_CENTER, 450, 397,
01733   WC_GAME_OPTIONS, WC_NONE,
01734   0,
01735   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
01736 );
01737 
01739 void ShowGameSettings()
01740 {
01741   DeleteWindowById(WC_GAME_OPTIONS, 0);
01742   new GameSettingsWindow(&_settings_selection_desc);
01743 }
01744 
01745 
01755 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
01756 {
01757   int colour = _colour_gradient[button_colour][2];
01758 
01759   DrawFrameRect(x,      y + 1, x +  9, y + 9, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
01760   DrawFrameRect(x + 10, y + 1, x + 19, y + 9, button_colour, (state == 2) ? FR_LOWERED : FR_NONE);
01761   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
01762   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + 10, y + WD_IMGBTN_TOP);
01763 
01764   /* Grey out the buttons that aren't clickable */
01765   bool rtl = _current_text_dir == TD_RTL;
01766   if (rtl ? !clickable_right : !clickable_left) {
01767     GfxFillRect(x +  1, y + 1, x +  1 + 8, y + 8, colour, FILLRECT_CHECKER);
01768   }
01769   if (rtl ? !clickable_left : !clickable_right) {
01770     GfxFillRect(x + 11, y + 1, x + 11 + 8, y + 8, colour, FILLRECT_CHECKER);
01771   }
01772 }
01773 
01775 enum CustomCurrencyWidgets {
01776   CUSTCURR_RATE_DOWN,
01777   CUSTCURR_RATE_UP,
01778   CUSTCURR_RATE,
01779   CUSTCURR_SEPARATOR_EDIT,
01780   CUSTCURR_SEPARATOR,
01781   CUSTCURR_PREFIX_EDIT,
01782   CUSTCURR_PREFIX,
01783   CUSTCURR_SUFFIX_EDIT,
01784   CUSTCURR_SUFFIX,
01785   CUSTCURR_YEAR_DOWN,
01786   CUSTCURR_YEAR_UP,
01787   CUSTCURR_YEAR,
01788   CUSTCURR_PREVIEW,
01789 };
01790 
01791 struct CustomCurrencyWindow : Window {
01792   int query_widget;
01793 
01794   CustomCurrencyWindow(const WindowDesc *desc) : Window()
01795   {
01796     this->InitNested(desc);
01797 
01798     SetButtonState();
01799   }
01800 
01801   void SetButtonState()
01802   {
01803     this->SetWidgetDisabledState(CUSTCURR_RATE_DOWN, _custom_currency.rate == 1);
01804     this->SetWidgetDisabledState(CUSTCURR_RATE_UP, _custom_currency.rate == UINT16_MAX);
01805     this->SetWidgetDisabledState(CUSTCURR_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
01806     this->SetWidgetDisabledState(CUSTCURR_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
01807   }
01808 
01809   virtual void SetStringParameters(int widget) const
01810   {
01811     switch (widget) {
01812       case CUSTCURR_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
01813       case CUSTCURR_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
01814       case CUSTCURR_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
01815       case CUSTCURR_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
01816       case CUSTCURR_YEAR:
01817         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
01818         SetDParam(1, _custom_currency.to_euro);
01819         break;
01820 
01821       case CUSTCURR_PREVIEW:
01822         SetDParam(0, 10000);
01823         break;
01824     }
01825   }
01826 
01827   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01828   {
01829     switch (widget) {
01830       /* Set the appropriate width for the edit 'buttons' */
01831       case CUSTCURR_SEPARATOR_EDIT:
01832       case CUSTCURR_PREFIX_EDIT:
01833       case CUSTCURR_SUFFIX_EDIT:
01834         size->width  = this->GetWidget<NWidgetBase>(CUSTCURR_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(CUSTCURR_RATE_UP)->smallest_x;
01835         break;
01836 
01837       /* Make sure the window is wide enough for the widest exchange rate */
01838       case CUSTCURR_RATE:
01839         SetDParam(0, 1);
01840         SetDParam(1, INT32_MAX);
01841         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
01842         break;
01843     }
01844   }
01845 
01846   virtual void OnClick(Point pt, int widget, int click_count)
01847   {
01848     int line = 0;
01849     int len = 0;
01850     StringID str = 0;
01851     CharSetFilter afilter = CS_ALPHANUMERAL;
01852 
01853     switch (widget) {
01854       case CUSTCURR_RATE_DOWN:
01855         if (_custom_currency.rate > 1) _custom_currency.rate--;
01856         if (_custom_currency.rate == 1) this->DisableWidget(CUSTCURR_RATE_DOWN);
01857         this->EnableWidget(CUSTCURR_RATE_UP);
01858         break;
01859 
01860       case CUSTCURR_RATE_UP:
01861         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
01862         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(CUSTCURR_RATE_UP);
01863         this->EnableWidget(CUSTCURR_RATE_DOWN);
01864         break;
01865 
01866       case CUSTCURR_RATE:
01867         SetDParam(0, _custom_currency.rate);
01868         str = STR_JUST_INT;
01869         len = 5;
01870         line = CUSTCURR_RATE;
01871         afilter = CS_NUMERAL;
01872         break;
01873 
01874       case CUSTCURR_SEPARATOR_EDIT:
01875       case CUSTCURR_SEPARATOR:
01876         SetDParamStr(0, _custom_currency.separator);
01877         str = STR_JUST_RAW_STRING;
01878         len = 1;
01879         line = CUSTCURR_SEPARATOR;
01880         break;
01881 
01882       case CUSTCURR_PREFIX_EDIT:
01883       case CUSTCURR_PREFIX:
01884         SetDParamStr(0, _custom_currency.prefix);
01885         str = STR_JUST_RAW_STRING;
01886         len = 12;
01887         line = CUSTCURR_PREFIX;
01888         break;
01889 
01890       case CUSTCURR_SUFFIX_EDIT:
01891       case CUSTCURR_SUFFIX:
01892         SetDParamStr(0, _custom_currency.suffix);
01893         str = STR_JUST_RAW_STRING;
01894         len = 12;
01895         line = CUSTCURR_SUFFIX;
01896         break;
01897 
01898       case CUSTCURR_YEAR_DOWN:
01899         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
01900         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(CUSTCURR_YEAR_DOWN);
01901         this->EnableWidget(CUSTCURR_YEAR_UP);
01902         break;
01903 
01904       case CUSTCURR_YEAR_UP:
01905         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
01906         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(CUSTCURR_YEAR_UP);
01907         this->EnableWidget(CUSTCURR_YEAR_DOWN);
01908         break;
01909 
01910       case CUSTCURR_YEAR:
01911         SetDParam(0, _custom_currency.to_euro);
01912         str = STR_JUST_INT;
01913         len = 7;
01914         line = CUSTCURR_YEAR;
01915         afilter = CS_NUMERAL;
01916         break;
01917     }
01918 
01919     if (len != 0) {
01920       this->query_widget = line;
01921       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, 250, this, afilter, QSF_NONE);
01922     }
01923 
01924     this->flags4 |= WF_TIMEOUT_BEGIN;
01925     this->SetDirty();
01926   }
01927 
01928   virtual void OnQueryTextFinished(char *str)
01929   {
01930     if (str == NULL) return;
01931 
01932     switch (this->query_widget) {
01933       case CUSTCURR_RATE:
01934         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
01935         break;
01936 
01937       case CUSTCURR_SEPARATOR: // Thousands seperator
01938         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
01939         break;
01940 
01941       case CUSTCURR_PREFIX:
01942         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
01943         break;
01944 
01945       case CUSTCURR_SUFFIX:
01946         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
01947         break;
01948 
01949       case CUSTCURR_YEAR: { // Year to switch to euro
01950         int val = atoi(str);
01951 
01952         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
01953         break;
01954       }
01955     }
01956     MarkWholeScreenDirty();
01957     SetButtonState();
01958   }
01959 
01960   virtual void OnTimeout()
01961   {
01962     this->SetDirty();
01963   }
01964 };
01965 
01966 static const NWidgetPart _nested_cust_currency_widgets[] = {
01967   NWidget(NWID_HORIZONTAL),
01968     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
01969     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01970   EndContainer(),
01971   NWidget(WWT_PANEL, COLOUR_GREY),
01972     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
01973       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
01974         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
01975         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
01976         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
01977         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
01978       EndContainer(),
01979       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
01980         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
01981         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
01982         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
01983       EndContainer(),
01984       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
01985         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
01986         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
01987         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
01988       EndContainer(),
01989       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
01990         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
01991         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
01992         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
01993       EndContainer(),
01994       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
01995         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
01996         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
01997         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
01998         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
01999       EndContainer(),
02000     EndContainer(),
02001     NWidget(WWT_LABEL, COLOUR_BLUE, CUSTCURR_PREVIEW),
02002                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
02003   EndContainer(),
02004 };
02005 
02006 static const WindowDesc _cust_currency_desc(
02007   WDP_CENTER, 0, 0,
02008   WC_CUSTOM_CURRENCY, WC_NONE,
02009   WDF_UNCLICK_BUTTONS,
02010   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
02011 );
02012 
02014 static void ShowCustCurrency()
02015 {
02016   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
02017   new CustomCurrencyWindow(&_cust_currency_desc);
02018 }

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