settings_gui.cpp

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00001 /* $Id: settings_gui.cpp 22650 2011-07-10 20:17:56Z rubidium $ */
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 #include <map>
00039 
00040 static const StringID _units_dropdown[] = {
00041   STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,
00042   STR_GAME_OPTIONS_MEASURING_UNITS_METRIC,
00043   STR_GAME_OPTIONS_MEASURING_UNITS_SI,
00044   INVALID_STRING_ID
00045 };
00046 
00047 static const StringID _driveside_dropdown[] = {
00048   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT,
00049   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_RIGHT,
00050   INVALID_STRING_ID
00051 };
00052 
00053 static const StringID _autosave_dropdown[] = {
00054   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
00055   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_MONTH,
00056   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_3_MONTHS,
00057   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_6_MONTHS,
00058   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_12_MONTHS,
00059   INVALID_STRING_ID,
00060 };
00061 
00068 static StringID *BuildDynamicDropdown(StringID base, int num)
00069 {
00070   static StringID buf[32 + 1];
00071   StringID *p = buf;
00072   while (--num >= 0) *p++ = base++;
00073   *p = INVALID_STRING_ID;
00074   return buf;
00075 }
00076 
00077 int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1; 
00078 static StringID *_grf_names = NULL; 
00079 static int _nb_grf_names = 0;       
00080 
00082 void InitGRFTownGeneratorNames()
00083 {
00084   free(_grf_names);
00085   _grf_names = GetGRFTownNameList();
00086   _nb_grf_names = 0;
00087   for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;
00088 }
00089 
00095 static inline StringID TownName(int town_name)
00096 {
00097   if (town_name < _nb_orig_names) return STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + town_name;
00098   town_name -= _nb_orig_names;
00099   if (town_name < _nb_grf_names) return _grf_names[town_name];
00100   return STR_UNDEFINED;
00101 }
00102 
00107 static int GetCurRes()
00108 {
00109   int i;
00110 
00111   for (i = 0; i != _num_resolutions; i++) {
00112     if ((int)_resolutions[i].width == _screen.width &&
00113         (int)_resolutions[i].height == _screen.height) {
00114       break;
00115     }
00116   }
00117   return i;
00118 }
00119 
00121 enum GameOptionsWidgets {
00122   GOW_BACKGROUND,             
00123   GOW_CURRENCY_DROPDOWN,      
00124   GOW_DISTANCE_DROPDOWN,      
00125   GOW_ROADSIDE_DROPDOWN,      
00126   GOW_TOWNNAME_DROPDOWN,      
00127   GOW_AUTOSAVE_DROPDOWN,      
00128   GOW_LANG_DROPDOWN,          
00129   GOW_RESOLUTION_DROPDOWN,    
00130   GOW_FULLSCREEN_BUTTON,      
00131   GOW_SCREENSHOT_DROPDOWN,    
00132   GOW_BASE_GRF_DROPDOWN,      
00133   GOW_BASE_GRF_STATUS,        
00134   GOW_BASE_GRF_DESCRIPTION,   
00135   GOW_BASE_SFX_DROPDOWN,      
00136   GOW_BASE_SFX_DESCRIPTION,   
00137   GOW_BASE_MUSIC_DROPDOWN,    
00138   GOW_BASE_MUSIC_STATUS,      
00139   GOW_BASE_MUSIC_DESCRIPTION, 
00140 };
00141 
00147 static void ShowTownnameDropdown(Window *w, int sel)
00148 {
00149   typedef std::map<StringID, int, StringIDCompare> TownList;
00150   TownList townnames;
00151 
00152   /* Add and sort original townnames generators */
00153   for (int i = 0; i < _nb_orig_names; i++) townnames[STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + i] = i;
00154 
00155   /* Add and sort newgrf townnames generators */
00156   for (int i = 0; i < _nb_grf_names; i++) townnames[_grf_names[i]] = _nb_orig_names + i;
00157 
00158   DropDownList *list = new DropDownList();
00159   for (TownList::iterator it = townnames.begin(); it != townnames.end(); it++) {
00160     list->push_back(new DropDownListStringItem((*it).first, (*it).second, !(_game_mode == GM_MENU || Town::GetNumItems() == 0 || (*it).second == sel)));
00161   }
00162 
00163   ShowDropDownList(w, list, sel, GOW_TOWNNAME_DROPDOWN);
00164 }
00165 
00166 static void ShowCustCurrency();
00167 
00168 template <class T>
00169 static void ShowSetMenu(Window *w, int widget)
00170 {
00171   int n = T::GetNumSets();
00172   int current = T::GetIndexOfUsedSet();
00173 
00174   DropDownList *list = new DropDownList();
00175   for (int i = 0; i < n; i++) {
00176     list->push_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, (_game_mode == GM_MENU) ? false : (current != i)));
00177   }
00178 
00179   ShowDropDownList(w, list, current, widget);
00180 }
00181 
00182 struct GameOptionsWindow : Window {
00183   GameSettings *opt;
00184   bool reload;
00185 
00186   GameOptionsWindow(const WindowDesc *desc) : Window()
00187   {
00188     this->opt = &GetGameSettings();
00189     this->reload = false;
00190 
00191     this->InitNested(desc);
00192     this->OnInvalidateData(0);
00193   }
00194 
00195   ~GameOptionsWindow()
00196   {
00197     DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
00198     if (this->reload) _switch_mode = SM_MENU;
00199   }
00200 
00201   virtual void SetStringParameters(int widget) const
00202   {
00203     switch (widget) {
00204       case GOW_CURRENCY_DROPDOWN:   SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
00205       case GOW_DISTANCE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL + this->opt->locale.units); break;
00206       case GOW_ROADSIDE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT + this->opt->vehicle.road_side); break;
00207       case GOW_TOWNNAME_DROPDOWN:   SetDParam(0, TownName(this->opt->game_creation.town_name)); break;
00208       case GOW_AUTOSAVE_DROPDOWN:   SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
00209       case GOW_LANG_DROPDOWN:       SetDParamStr(0, _current_language->own_name); break;
00210       case GOW_RESOLUTION_DROPDOWN: SetDParam(0, GetCurRes() == _num_resolutions ? STR_GAME_OPTIONS_RESOLUTION_OTHER : SPECSTR_RESOLUTION_START + GetCurRes()); break;
00211       case GOW_SCREENSHOT_DROPDOWN: SetDParam(0, SPECSTR_SCREENSHOT_START + _cur_screenshot_format); break;
00212       case GOW_BASE_GRF_DROPDOWN:   SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
00213       case GOW_BASE_GRF_STATUS:     SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
00214       case GOW_BASE_SFX_DROPDOWN:   SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
00215       case GOW_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
00216       case GOW_BASE_MUSIC_STATUS:   SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
00217     }
00218   }
00219 
00220   virtual void DrawWidget(const Rect &r, int widget) const
00221   {
00222     switch (widget) {
00223       case GOW_BASE_GRF_DESCRIPTION:
00224         SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00225         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00226         break;
00227 
00228       case GOW_BASE_SFX_DESCRIPTION:
00229         SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00230         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00231         break;
00232 
00233       case GOW_BASE_MUSIC_DESCRIPTION:
00234         SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00235         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00236         break;
00237     }
00238   }
00239 
00240   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00241   {
00242     switch (widget) {
00243       case GOW_BASE_GRF_DESCRIPTION:
00244         /* Find the biggest description for the default size. */
00245         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00246           SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00247           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00248         }
00249         break;
00250 
00251       case GOW_BASE_GRF_STATUS:
00252         /* Find the biggest description for the default size. */
00253         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00254           uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
00255           if (invalid_files == 0) continue;
00256 
00257           SetDParam(0, invalid_files);
00258           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
00259         }
00260         break;
00261 
00262       case GOW_BASE_SFX_DESCRIPTION:
00263         /* Find the biggest description for the default size. */
00264         for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
00265           SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00266           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00267         }
00268         break;
00269 
00270       case GOW_BASE_MUSIC_DESCRIPTION:
00271         /* Find the biggest description for the default size. */
00272         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00273           SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00274           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00275         }
00276         break;
00277 
00278       case GOW_BASE_MUSIC_STATUS:
00279         /* Find the biggest description for the default size. */
00280         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00281           uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
00282           if (invalid_files == 0) continue;
00283 
00284           SetDParam(0, invalid_files);
00285           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
00286         }
00287         break;
00288     }
00289   }
00290 
00291   virtual void OnClick(Point pt, int widget, int click_count)
00292   {
00293     switch (widget) {
00294       case GOW_CURRENCY_DROPDOWN: // Setup currencies dropdown
00295         ShowDropDownMenu(this, BuildCurrencyDropdown(), this->opt->locale.currency, GOW_CURRENCY_DROPDOWN, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);
00296         break;
00297 
00298       case GOW_DISTANCE_DROPDOWN: // Setup distance unit dropdown
00299         ShowDropDownMenu(this, _units_dropdown, this->opt->locale.units, GOW_DISTANCE_DROPDOWN, 0, 0);
00300         break;
00301 
00302       case GOW_ROADSIDE_DROPDOWN: { // Setup road-side dropdown
00303         int i = 0;
00304         extern bool RoadVehiclesAreBuilt();
00305 
00306         /* You can only change the drive side if you are in the menu or ingame with
00307          * no vehicles present. In a networking game only the server can change it */
00308         if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server)) {
00309           i = (-1) ^ (1 << this->opt->vehicle.road_side); // disable the other value
00310         }
00311 
00312         ShowDropDownMenu(this, _driveside_dropdown, this->opt->vehicle.road_side, GOW_ROADSIDE_DROPDOWN, i, 0);
00313         break;
00314       }
00315 
00316       case GOW_TOWNNAME_DROPDOWN: // Setup townname dropdown
00317         ShowTownnameDropdown(this, this->opt->game_creation.town_name);
00318         break;
00319 
00320       case GOW_AUTOSAVE_DROPDOWN: // Setup autosave dropdown
00321         ShowDropDownMenu(this, _autosave_dropdown, _settings_client.gui.autosave, GOW_AUTOSAVE_DROPDOWN, 0, 0);
00322         break;
00323 
00324       case GOW_LANG_DROPDOWN: { // Setup interface language dropdown
00325         typedef std::map<StringID, int, StringIDCompare> LangList;
00326 
00327         /* Sort language names */
00328         LangList langs;
00329         int current_lang = 0;
00330         for (int i = 0; i < (int)_languages.Length(); i++) {
00331           if (&_languages[i] == _current_language) current_lang = i;
00332           langs[SPECSTR_LANGUAGE_START + i] = i;
00333         }
00334 
00335         DropDownList *list = new DropDownList();
00336         for (LangList::iterator it = langs.begin(); it != langs.end(); it++) {
00337           list->push_back(new DropDownListStringItem((*it).first, (*it).second, false));
00338         }
00339 
00340         ShowDropDownList(this, list, current_lang, GOW_LANG_DROPDOWN);
00341         break;
00342       }
00343 
00344       case GOW_RESOLUTION_DROPDOWN: // Setup resolution dropdown
00345         ShowDropDownMenu(this, BuildDynamicDropdown(SPECSTR_RESOLUTION_START, _num_resolutions), GetCurRes(), GOW_RESOLUTION_DROPDOWN, 0, 0);
00346         break;
00347 
00348       case GOW_FULLSCREEN_BUTTON: // Click fullscreen on/off
00349         /* try to toggle full-screen on/off */
00350         if (!ToggleFullScreen(!_fullscreen)) {
00351           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
00352         }
00353         this->SetWidgetLoweredState(GOW_FULLSCREEN_BUTTON, _fullscreen);
00354         this->SetDirty();
00355         break;
00356 
00357       case GOW_SCREENSHOT_DROPDOWN: // Setup screenshot format dropdown
00358         ShowDropDownMenu(this, BuildDynamicDropdown(SPECSTR_SCREENSHOT_START, _num_screenshot_formats), _cur_screenshot_format, GOW_SCREENSHOT_DROPDOWN, 0, 0);
00359         break;
00360 
00361       case GOW_BASE_GRF_DROPDOWN:
00362         ShowSetMenu<BaseGraphics>(this, GOW_BASE_GRF_DROPDOWN);
00363         break;
00364 
00365       case GOW_BASE_SFX_DROPDOWN:
00366         ShowSetMenu<BaseSounds>(this, GOW_BASE_SFX_DROPDOWN);
00367         break;
00368 
00369       case GOW_BASE_MUSIC_DROPDOWN:
00370         ShowSetMenu<BaseMusic>(this, GOW_BASE_MUSIC_DROPDOWN);
00371         break;
00372     }
00373   }
00374 
00380   template <class T>
00381   void SetMediaSet(int index)
00382   {
00383     if (_game_mode == GM_MENU) {
00384       const char *name = T::GetSet(index)->name;
00385 
00386       free(const_cast<char *>(T::ini_set));
00387       T::ini_set = strdup(name);
00388 
00389       T::SetSet(name);
00390       this->reload = true;
00391       this->InvalidateData();
00392     }
00393   }
00394 
00395   virtual void OnDropdownSelect(int widget, int index)
00396   {
00397     switch (widget) {
00398       case GOW_CURRENCY_DROPDOWN: // Currency
00399         if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();
00400         this->opt->locale.currency = index;
00401         ReInitAllWindows();
00402         break;
00403 
00404       case GOW_DISTANCE_DROPDOWN: // Measuring units
00405         this->opt->locale.units = index;
00406         MarkWholeScreenDirty();
00407         break;
00408 
00409       case GOW_ROADSIDE_DROPDOWN: // Road side
00410         if (this->opt->vehicle.road_side != index) { // only change if setting changed
00411           uint i;
00412           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
00413           SetSettingValue(i, index);
00414           MarkWholeScreenDirty();
00415         }
00416         break;
00417 
00418       case GOW_TOWNNAME_DROPDOWN: // Town names
00419         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
00420           this->opt->game_creation.town_name = index;
00421           SetWindowDirty(WC_GAME_OPTIONS, 0);
00422         }
00423         break;
00424 
00425       case GOW_AUTOSAVE_DROPDOWN: // Autosave options
00426         _settings_client.gui.autosave = index;
00427         this->SetDirty();
00428         break;
00429 
00430       case GOW_LANG_DROPDOWN: // Change interface language
00431         ReadLanguagePack(&_languages[index]);
00432         DeleteWindowByClass(WC_QUERY_STRING);
00433         CheckForMissingGlyphsInLoadedLanguagePack();
00434         UpdateAllVirtCoords();
00435         ReInitAllWindows();
00436         break;
00437 
00438       case GOW_RESOLUTION_DROPDOWN: // Change resolution
00439         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
00440           this->SetDirty();
00441         }
00442         break;
00443 
00444       case GOW_SCREENSHOT_DROPDOWN: // Change screenshot format
00445         SetScreenshotFormat(index);
00446         this->SetDirty();
00447         break;
00448 
00449       case GOW_BASE_GRF_DROPDOWN:
00450         this->SetMediaSet<BaseGraphics>(index);
00451         break;
00452 
00453       case GOW_BASE_SFX_DROPDOWN:
00454         this->SetMediaSet<BaseSounds>(index);
00455         break;
00456 
00457       case GOW_BASE_MUSIC_DROPDOWN:
00458         this->SetMediaSet<BaseMusic>(index);
00459         break;
00460     }
00461   }
00462 
00468   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00469   {
00470     if (!gui_scope) return;
00471     this->SetWidgetLoweredState(GOW_FULLSCREEN_BUTTON, _fullscreen);
00472 
00473     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
00474     this->GetWidget<NWidgetCore>(GOW_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
00475 
00476     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
00477     this->GetWidget<NWidgetCore>(GOW_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
00478 
00479     InitGRFTownGeneratorNames();
00480   }
00481 };
00482 
00483 static const NWidgetPart _nested_game_options_widgets[] = {
00484   NWidget(NWID_HORIZONTAL),
00485     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00486     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00487   EndContainer(),
00488   NWidget(WWT_PANEL, COLOUR_GREY, GOW_BACKGROUND), SetPIP(6, 6, 10),
00489     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
00490       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00491         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
00492           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),
00493         EndContainer(),
00494         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
00495           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),
00496         EndContainer(),
00497         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
00498           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
00499         EndContainer(),
00500         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
00501           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),
00502           NWidget(NWID_HORIZONTAL),
00503             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
00504             NWidget(WWT_TEXTBTN, COLOUR_GREY, GOW_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
00505           EndContainer(),
00506         EndContainer(),
00507       EndContainer(),
00508 
00509       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00510         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
00511           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),
00512         EndContainer(),
00513         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
00514           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),
00515         EndContainer(),
00516         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
00517           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
00518         EndContainer(),
00519         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
00520           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_SCREENSHOT_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_SCREENSHOT_FORMAT_TOOLTIP), SetFill(1, 0),
00521         EndContainer(),
00522         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
00523       EndContainer(),
00524     EndContainer(),
00525 
00526     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
00527       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00528         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
00529         NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00530       EndContainer(),
00531       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),
00532     EndContainer(),
00533 
00534     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
00535       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00536         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
00537         NWidget(NWID_SPACER), SetFill(1, 0),
00538       EndContainer(),
00539       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),
00540     EndContainer(),
00541 
00542     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
00543       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00544         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
00545         NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00546       EndContainer(),
00547       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),
00548     EndContainer(),
00549   EndContainer(),
00550 };
00551 
00552 static const WindowDesc _game_options_desc(
00553   WDP_CENTER, 0, 0,
00554   WC_GAME_OPTIONS, WC_NONE,
00555   WDF_UNCLICK_BUTTONS,
00556   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
00557 );
00558 
00560 void ShowGameOptions()
00561 {
00562   DeleteWindowById(WC_GAME_OPTIONS, 0);
00563   new GameOptionsWindow(&_game_options_desc);
00564 }
00565 
00566 extern void StartupEconomy();
00567 
00568 
00569 /* Names of the game difficulty settings window */
00570 enum GameDifficultyWidgets {
00571   GDW_LVL_EASY,
00572   GDW_LVL_MEDIUM,
00573   GDW_LVL_HARD,
00574   GDW_LVL_CUSTOM,
00575   GDW_HIGHSCORE,
00576   GDW_ACCEPT,
00577   GDW_CANCEL,
00578 
00579   GDW_OPTIONS_START,
00580 };
00581 
00582 void SetDifficultyLevel(int mode, DifficultySettings *gm_opt);
00583 
00584 class GameDifficultyWindow : public Window {
00585 private:
00586   /* Temporary holding place of values in the difficulty window until 'Save' is clicked */
00587   GameSettings opt_mod_temp;
00588 
00589 public:
00591   static const uint GAME_DIFFICULTY_NUM = 18;
00593   static const uint WIDGETS_PER_DIFFICULTY = 3;
00594 
00595   GameDifficultyWindow(const WindowDesc *desc) : Window()
00596   {
00597     this->InitNested(desc);
00598 
00599     /* Setup disabled buttons when creating window
00600      * disable all other difficulty buttons during gameplay except for 'custom' */
00601     this->SetWidgetsDisabledState(_game_mode != GM_MENU,
00602       GDW_LVL_EASY,
00603       GDW_LVL_MEDIUM,
00604       GDW_LVL_HARD,
00605       GDW_LVL_CUSTOM,
00606       WIDGET_LIST_END);
00607     this->SetWidgetDisabledState(GDW_HIGHSCORE, _game_mode == GM_EDITOR || _networking); // highscore chart in multiplayer
00608     this->SetWidgetDisabledState(GDW_ACCEPT, _networking && !_network_server); // Save-button in multiplayer (and if client)
00609 
00610     /* Read data */
00611     this->OnInvalidateData(GOID_DIFFICULTY_CHANGED);
00612   }
00613 
00614   virtual void SetStringParameters(int widget) const
00615   {
00616     widget -= GDW_OPTIONS_START;
00617     if (widget < 0 || (widget % 3) != 2) return;
00618 
00619     widget /= 3;
00620 
00621     uint i;
00622     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + widget;
00623     int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00624     SetDParam(0, sd->desc.str + value);
00625   }
00626 
00627   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00628   {
00629     /* Only for the 'descriptions' */
00630     int index = widget - GDW_OPTIONS_START;
00631     if (index < 0 || (index % 3) != 2) return;
00632 
00633     index /= 3;
00634 
00635     uint i;
00636     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + index;
00637     const SettingDescBase *sdb = &sd->desc;
00638 
00639     /* Get the string and try all strings from the smallest to the highest value */
00640     StringID str = this->GetWidget<NWidgetCore>(widget)->widget_data;
00641     for (int32 value = sdb->min; (uint32)value <= sdb->max; value += sdb->interval) {
00642       SetDParam(0, sdb->str + value);
00643       *size = maxdim(*size, GetStringBoundingBox(str));
00644     }
00645   }
00646 
00647   virtual void OnClick(Point pt, int widget, int click_count)
00648   {
00649     if (widget >= GDW_OPTIONS_START) {
00650       widget -= GDW_OPTIONS_START;
00651       if ((widget % 3) == 2) return;
00652 
00653       /* Don't allow clients to make any changes */
00654       if (_networking && !_network_server) return;
00655 
00656       uint i;
00657       const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + (widget / 3);
00658       const SettingDescBase *sdb = &sd->desc;
00659 
00660       int32 val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00661       if (widget % 3 == 1) {
00662         /* Increase button clicked */
00663         val = min(val + sdb->interval, (int32)sdb->max);
00664       } else {
00665         /* Decrease button clicked */
00666         val -= sdb->interval;
00667         val = max(val, sdb->min);
00668       }
00669 
00670       /* save value in temporary variable */
00671       WriteValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv, val);
00672       this->RaiseWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00673       SetDifficultyLevel(3, &this->opt_mod_temp.difficulty); // set difficulty level to custom
00674       this->LowerWidget(GDW_LVL_CUSTOM);
00675       this->InvalidateData();
00676 
00677       if (widget / 3 == 0 &&
00678 #ifdef ENABLE_AI
00679           AI::GetInfoList()->size() == 0 &&
00680 #endif /* ENABLE_AI */
00681           this->opt_mod_temp.difficulty.max_no_competitors != 0) {
00682         ShowErrorMessage(STR_WARNING_NO_SUITABLE_AI, INVALID_STRING_ID, WL_CRITICAL);
00683       }
00684       return;
00685     }
00686 
00687     switch (widget) {
00688       case GDW_LVL_EASY:
00689       case GDW_LVL_MEDIUM:
00690       case GDW_LVL_HARD:
00691       case GDW_LVL_CUSTOM:
00692         /* temporarily change difficulty level */
00693         this->RaiseWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00694         SetDifficultyLevel(widget - GDW_LVL_EASY, &this->opt_mod_temp.difficulty);
00695         this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00696         this->InvalidateData();
00697         break;
00698 
00699       case GDW_HIGHSCORE: // Highscore Table
00700         ShowHighscoreTable(this->opt_mod_temp.difficulty.diff_level, -1);
00701         break;
00702 
00703       case GDW_ACCEPT: { // Save button - save changes
00704         GameSettings *opt_ptr = &GetGameSettings();
00705 
00706         uint i;
00707         GetSettingFromName("difficulty.diff_level", &i);
00708         DoCommandP(0, i, this->opt_mod_temp.difficulty.diff_level, CMD_CHANGE_SETTING);
00709 
00710         const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00711         for (uint btn = 0; btn != GAME_DIFFICULTY_NUM; btn++, sd++) {
00712           int32 new_val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00713           int32 cur_val = (int32)ReadValue(GetVariableAddress(opt_ptr, &sd->save), sd->save.conv);
00714           /* if setting has changed, change it */
00715           if (new_val != cur_val) {
00716             DoCommandP(0, i + btn, new_val, CMD_CHANGE_SETTING);
00717           }
00718         }
00719         delete this;
00720         /* If we are in the editor, we should reload the economy.
00721          * This way when you load a game, the max loan and interest rate
00722          * are loaded correctly. */
00723         if (_game_mode == GM_EDITOR) StartupEconomy();
00724         break;
00725       }
00726 
00727       case GDW_CANCEL: // Cancel button - close window, abandon changes
00728         delete this;
00729         break;
00730     }
00731   }
00732 
00738   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00739   {
00740     if (!gui_scope) return;
00741 
00742     if (data == GOID_DIFFICULTY_CHANGED) {
00743       /* Window was created or settings were changed on server. Reread everything. */
00744 
00745       /* Copy current settings (ingame or in intro) to temporary holding place
00746        * change that when setting stuff, copy back on clicking 'OK' */
00747       this->opt_mod_temp = GetGameSettings();
00748 
00749       this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00750     }
00751 
00752     uint i;
00753     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00754     for (i = 0; i < GAME_DIFFICULTY_NUM; i++, sd++) {
00755       const SettingDescBase *sdb = &sd->desc;
00756       /* skip deprecated difficulty options */
00757       if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
00758       int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00759       bool disable = (sd->desc.flags & SGF_NEWGAME_ONLY) &&
00760           (_game_mode == GM_NORMAL ||
00761           (_game_mode == GM_EDITOR && (sd->desc.flags & SGF_SCENEDIT_TOO) == 0));
00762 
00763       this->SetWidgetDisabledState(GDW_OPTIONS_START + i * 3 + 0, disable || sdb->min == value);
00764       this->SetWidgetDisabledState(GDW_OPTIONS_START + i * 3 + 1, disable || sdb->max == (uint32)value);
00765     }
00766   }
00767 };
00768 
00769 static NWidgetBase *MakeDifficultyOptionsWidgets(int *biggest_index)
00770 {
00771   NWidgetVertical *vert_desc = new NWidgetVertical;
00772 
00773   int widnum = GDW_OPTIONS_START;
00774   uint i, j;
00775   const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00776 
00777   for (i = 0, j = 0; i < GameDifficultyWindow::GAME_DIFFICULTY_NUM; i++, sd++, widnum += GameDifficultyWindow::WIDGETS_PER_DIFFICULTY) {
00778     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
00779 
00780     NWidgetHorizontal *hor = new NWidgetHorizontal;
00781 
00782     /* [<] button. */
00783     NWidgetLeaf *leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum, AWV_DECREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
00784     hor->Add(leaf);
00785 
00786     /* [>] button. */
00787     leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum + 1, AWV_INCREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
00788     hor->Add(leaf);
00789 
00790     /* Some spacing between the text and the description */
00791     NWidgetSpacer *spacer = new NWidgetSpacer(5, 0);
00792     hor->Add(spacer);
00793 
00794     /* Descriptive text. */
00795     leaf = new NWidgetLeaf(WWT_TEXT, COLOUR_YELLOW, widnum + 2, STR_DIFFICULTY_LEVEL_SETTING_MAXIMUM_NO_COMPETITORS + (j++), STR_NULL);
00796     leaf->SetFill(1, 0);
00797     hor->Add(leaf);
00798     vert_desc->Add(hor);
00799 
00800     /* Space vertically */
00801     vert_desc->Add(new NWidgetSpacer(0, 2));
00802   }
00803   *biggest_index = widnum - 1;
00804   return vert_desc;
00805 }
00806 
00807 
00809 static const NWidgetPart _nested_game_difficulty_widgets[] = {
00810   NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_DIFFICULTY_LEVEL_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00811   NWidget(WWT_PANEL, COLOUR_MAUVE),
00812     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
00813       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
00814         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_EASY), SetDataTip(STR_DIFFICULTY_LEVEL_EASY, STR_NULL), SetFill(1, 0),
00815         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_MEDIUM), SetDataTip(STR_DIFFICULTY_LEVEL_MEDIUM, STR_NULL), SetFill(1, 0),
00816         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_HARD), SetDataTip(STR_DIFFICULTY_LEVEL_HARD, STR_NULL), SetFill(1, 0),
00817         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_CUSTOM), SetDataTip(STR_DIFFICULTY_LEVEL_CUSTOM, STR_NULL), SetFill(1, 0),
00818       EndContainer(),
00819       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 10),
00820         NWidget(WWT_PUSHTXTBTN, COLOUR_GREEN, GDW_HIGHSCORE), SetDataTip(STR_DIFFICULTY_LEVEL_HIGH_SCORE_BUTTON, STR_NULL), SetFill(1, 0),
00821       EndContainer(),
00822     EndContainer(),
00823   EndContainer(),
00824   NWidget(WWT_PANEL, COLOUR_MAUVE),
00825     NWidget(NWID_VERTICAL), SetPIP(3, 0, 1),
00826       NWidget(NWID_HORIZONTAL), SetPIP(5, 0, 5),
00827         NWidgetFunction(MakeDifficultyOptionsWidgets),
00828       EndContainer(),
00829     EndContainer(),
00830   EndContainer(),
00831   NWidget(WWT_PANEL, COLOUR_MAUVE),
00832     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
00833       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
00834         NWidget(NWID_SPACER), SetFill(1, 0),
00835         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, GDW_ACCEPT), SetDataTip(STR_DIFFICULTY_LEVEL_SAVE, STR_NULL), SetFill(1, 0),
00836         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, GDW_CANCEL), SetDataTip(STR_BUTTON_CANCEL, STR_NULL), SetFill(1, 0),
00837         NWidget(NWID_SPACER), SetFill(1, 0),
00838       EndContainer(),
00839     EndContainer(),
00840   EndContainer(),
00841 };
00842 
00844 static const WindowDesc _game_difficulty_desc(
00845   WDP_CENTER, 0, 0,
00846   WC_GAME_OPTIONS, WC_NONE,
00847   WDF_UNCLICK_BUTTONS,
00848   _nested_game_difficulty_widgets, lengthof(_nested_game_difficulty_widgets)
00849 );
00850 
00852 void ShowGameDifficulty()
00853 {
00854   DeleteWindowById(WC_GAME_OPTIONS, 0);
00855   new GameDifficultyWindow(&_game_difficulty_desc);
00856 }
00857 
00858 static int SETTING_HEIGHT = 11;    
00859 static const int LEVEL_WIDTH = 15; 
00860 
00865 enum SettingEntryFlags {
00866   SEF_LEFT_DEPRESSED  = 0x01, 
00867   SEF_RIGHT_DEPRESSED = 0x02, 
00868   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), 
00869 
00870   SEF_LAST_FIELD = 0x04, 
00871 
00872   /* Entry kind */
00873   SEF_SETTING_KIND = 0x10, 
00874   SEF_SUBTREE_KIND = 0x20, 
00875   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND), 
00876 };
00877 
00878 struct SettingsPage; // Forward declaration
00879 
00881 struct SettingEntrySubtree {
00882   SettingsPage *page; 
00883   bool folded;        
00884   StringID title;     
00885 };
00886 
00888 struct SettingEntrySetting {
00889   const char *name;           
00890   const SettingDesc *setting; 
00891   uint index;                 
00892 };
00893 
00895 struct SettingEntry {
00896   byte flags; 
00897   byte level; 
00898   union {
00899     SettingEntrySetting entry; 
00900     SettingEntrySubtree sub;   
00901   } d; 
00902 
00903   SettingEntry(const char *nm);
00904   SettingEntry(SettingsPage *sub, StringID title);
00905 
00906   void Init(byte level, bool last_field);
00907   void FoldAll();
00908   void SetButtons(byte new_val);
00909 
00910   uint Length() const;
00911   SettingEntry *FindEntry(uint row, uint *cur_row);
00912 
00913   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);
00914 
00915 private:
00916   void DrawSetting(GameSettings *settings_ptr, const SettingDesc *sd, int x, int y, int max_x, int state);
00917 };
00918 
00920 struct SettingsPage {
00921   SettingEntry *entries; 
00922   byte num;              
00923 
00924   void Init(byte level = 0);
00925   void FoldAll();
00926 
00927   uint Length() const;
00928   SettingEntry *FindEntry(uint row, uint *cur_row) const;
00929 
00930   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;
00931 };
00932 
00933 
00934 /* == SettingEntry methods == */
00935 
00940 SettingEntry::SettingEntry(const char *nm)
00941 {
00942   this->flags = SEF_SETTING_KIND;
00943   this->level = 0;
00944   this->d.entry.name = nm;
00945   this->d.entry.setting = NULL;
00946   this->d.entry.index = 0;
00947 }
00948 
00954 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
00955 {
00956   this->flags = SEF_SUBTREE_KIND;
00957   this->level = 0;
00958   this->d.sub.page = sub;
00959   this->d.sub.folded = true;
00960   this->d.sub.title = title;
00961 }
00962 
00968 void SettingEntry::Init(byte level, bool last_field)
00969 {
00970   this->level = level;
00971   if (last_field) this->flags |= SEF_LAST_FIELD;
00972 
00973   switch (this->flags & SEF_KIND_MASK) {
00974     case SEF_SETTING_KIND:
00975       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
00976       assert(this->d.entry.setting != NULL);
00977       break;
00978     case SEF_SUBTREE_KIND:
00979       this->d.sub.page->Init(level + 1);
00980       break;
00981     default: NOT_REACHED();
00982   }
00983 }
00984 
00986 void SettingEntry::FoldAll()
00987 {
00988   switch (this->flags & SEF_KIND_MASK) {
00989     case SEF_SETTING_KIND:
00990       break;
00991 
00992     case SEF_SUBTREE_KIND:
00993       this->d.sub.folded = true;
00994       this->d.sub.page->FoldAll();
00995       break;
00996 
00997     default: NOT_REACHED();
00998   }
00999 }
01000 
01001 
01007 void SettingEntry::SetButtons(byte new_val)
01008 {
01009   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
01010   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
01011 }
01012 
01014 uint SettingEntry::Length() const
01015 {
01016   switch (this->flags & SEF_KIND_MASK) {
01017     case SEF_SETTING_KIND:
01018       return 1;
01019     case SEF_SUBTREE_KIND:
01020       if (this->d.sub.folded) return 1; // Only displaying the title
01021 
01022       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
01023     default: NOT_REACHED();
01024   }
01025 }
01026 
01033 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
01034 {
01035   if (row_num == *cur_row) return this;
01036 
01037   switch (this->flags & SEF_KIND_MASK) {
01038     case SEF_SETTING_KIND:
01039       (*cur_row)++;
01040       break;
01041     case SEF_SUBTREE_KIND:
01042       (*cur_row)++; // add one for row containing the title
01043       if (this->d.sub.folded) {
01044         break;
01045       }
01046 
01047       /* sub-page is visible => search it too */
01048       return this->d.sub.page->FindEntry(row_num, cur_row);
01049     default: NOT_REACHED();
01050   }
01051   return NULL;
01052 }
01053 
01080 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)
01081 {
01082   if (cur_row >= max_row) return cur_row;
01083 
01084   bool rtl = _current_text_dir == TD_RTL;
01085   int offset = rtl ? -4 : 4;
01086   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
01087 
01088   int x = rtl ? right : left;
01089   int y = base_y;
01090   if (cur_row >= first_row) {
01091     int colour = _colour_gradient[COLOUR_ORANGE][4];
01092     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
01093 
01094     /* Draw vertical for parent nesting levels */
01095     for (uint lvl = 0; lvl < this->level; lvl++) {
01096       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
01097       x += level_width;
01098     }
01099     /* draw own |- prefix */
01100     int halfway_y = y + SETTING_HEIGHT / 2;
01101     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
01102     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
01103     /* Small horizontal line from the last vertical line */
01104     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
01105     x += level_width;
01106   }
01107 
01108   switch (this->flags & SEF_KIND_MASK) {
01109     case SEF_SETTING_KIND:
01110       if (cur_row >= first_row) {
01111         DrawSetting(settings_ptr, this->d.entry.setting, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK);
01112       }
01113       cur_row++;
01114       break;
01115     case SEF_SUBTREE_KIND:
01116       if (cur_row >= first_row) {
01117         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
01118         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
01119       }
01120       cur_row++;
01121       if (!this->d.sub.folded) {
01122         if (this->flags & SEF_LAST_FIELD) {
01123           assert(this->level < sizeof(parent_last));
01124           SetBit(parent_last, this->level); // Add own last-field state
01125         }
01126 
01127         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last);
01128       }
01129       break;
01130     default: NOT_REACHED();
01131   }
01132   return cur_row;
01133 }
01134 
01135 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
01136 {
01137   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01138     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01139       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
01140     } else {
01141       return GetVariableAddress(&_settings_client.company, &sd->save);
01142     }
01143   } else {
01144     return GetVariableAddress(settings_ptr, &sd->save);
01145   }
01146 }
01147 
01157 void SettingEntry::DrawSetting(GameSettings *settings_ptr, const SettingDesc *sd, int left, int right, int y, int state)
01158 {
01159   const SettingDescBase *sdb = &sd->desc;
01160   const void *var = ResolveVariableAddress(settings_ptr, sd);
01161   bool editable = true;
01162   bool disabled = false;
01163 
01164   bool rtl = _current_text_dir == TD_RTL;
01165   uint buttons_left = rtl ? right - 19 : left;
01166   uint text_left  = left + (rtl ? 0 : 25);
01167   uint text_right = right - (rtl ? 25 : 0);
01168   uint button_y = y + (SETTING_HEIGHT - 11) / 2;
01169 
01170   /* We do not allow changes of some items when we are a client in a networkgame */
01171   if (!(sd->save.conv & SLF_NETWORK_NO) && _networking && !_network_server && !(sdb->flags & SGF_PER_COMPANY)) editable = false;
01172   if ((sdb->flags & SGF_NETWORK_ONLY) && !_networking) editable = false;
01173   if ((sdb->flags & SGF_NO_NETWORK) && _networking) editable = false;
01174 
01175   if (sdb->cmd == SDT_BOOLX) {
01176     static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
01177     /* Draw checkbox for boolean-value either on/off */
01178     bool on = ReadValue(var, sd->save.conv) != 0;
01179 
01180     DrawFrameRect(buttons_left, button_y, buttons_left + 19, button_y + 8, _bool_ctabs[!!on][!!editable], on ? FR_LOWERED : FR_NONE);
01181     SetDParam(0, on ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
01182   } else {
01183     int32 value;
01184 
01185     value = (int32)ReadValue(var, sd->save.conv);
01186 
01187     /* Draw [<][>] boxes for settings of an integer-type */
01188     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state, editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
01189 
01190     disabled = (value == 0) && (sdb->flags & SGF_0ISDISABLED);
01191     if (disabled) {
01192       SetDParam(0, STR_CONFIG_SETTING_DISABLED);
01193     } else {
01194       if (sdb->flags & SGF_CURRENCY) {
01195         SetDParam(0, STR_JUST_CURRENCY);
01196       } else if (sdb->flags & SGF_MULTISTRING) {
01197         SetDParam(0, sdb->str - sdb->min + value + 1);
01198       } else {
01199         SetDParam(0, (sdb->flags & SGF_NOCOMMA) ? STR_JUST_INT : STR_JUST_COMMA);
01200       }
01201       SetDParam(1, value);
01202     }
01203   }
01204   DrawString(text_left, text_right, y, (sdb->str) + disabled);
01205 }
01206 
01207 
01208 /* == SettingsPage methods == */
01209 
01214 void SettingsPage::Init(byte level)
01215 {
01216   for (uint field = 0; field < this->num; field++) {
01217     this->entries[field].Init(level, field + 1 == num);
01218   }
01219 }
01220 
01222 void SettingsPage::FoldAll()
01223 {
01224   for (uint field = 0; field < this->num; field++) {
01225     this->entries[field].FoldAll();
01226   }
01227 }
01228 
01230 uint SettingsPage::Length() const
01231 {
01232   uint length = 0;
01233   for (uint field = 0; field < this->num; field++) {
01234     length += this->entries[field].Length();
01235   }
01236   return length;
01237 }
01238 
01245 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
01246 {
01247   SettingEntry *pe = NULL;
01248 
01249   for (uint field = 0; field < this->num; field++) {
01250     pe = this->entries[field].FindEntry(row_num, cur_row);
01251     if (pe != NULL) {
01252       break;
01253     }
01254   }
01255   return pe;
01256 }
01257 
01275 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
01276 {
01277   if (cur_row >= max_row) return cur_row;
01278 
01279   for (uint i = 0; i < this->num; i++) {
01280     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last);
01281     if (cur_row >= max_row) {
01282       break;
01283     }
01284   }
01285   return cur_row;
01286 }
01287 
01288 
01289 static SettingEntry _settings_ui_display[] = {
01290   SettingEntry("gui.date_format_in_default_names"),
01291   SettingEntry("gui.population_in_label"),
01292   SettingEntry("gui.measure_tooltip"),
01293   SettingEntry("gui.loading_indicators"),
01294   SettingEntry("gui.liveries"),
01295   SettingEntry("gui.show_track_reservation"),
01296   SettingEntry("gui.expenses_layout"),
01297   SettingEntry("gui.smallmap_land_colour"),
01298 };
01300 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
01301 
01302 static SettingEntry _settings_ui_interaction[] = {
01303   SettingEntry("gui.window_snap_radius"),
01304   SettingEntry("gui.window_soft_limit"),
01305   SettingEntry("gui.link_terraform_toolbar"),
01306   SettingEntry("gui.prefer_teamchat"),
01307   SettingEntry("gui.autoscroll"),
01308   SettingEntry("gui.reverse_scroll"),
01309   SettingEntry("gui.smooth_scroll"),
01310   SettingEntry("gui.left_mouse_btn_scrolling"),
01311   /* While the horizontal scrollwheel scrolling is written as general code, only
01312    *  the cocoa (OSX) driver generates input for it.
01313    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
01314   SettingEntry("gui.scrollwheel_scrolling"),
01315   SettingEntry("gui.scrollwheel_multiplier"),
01316 #ifdef __APPLE__
01317   /* We might need to emulate a right mouse button on mac */
01318   SettingEntry("gui.right_mouse_btn_emulation"),
01319 #endif
01320 };
01322 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
01323 
01324 static SettingEntry _settings_ui[] = {
01325   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
01326   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
01327   SettingEntry("gui.show_finances"),
01328   SettingEntry("gui.errmsg_duration"),
01329   SettingEntry("gui.hover_delay"),
01330   SettingEntry("gui.toolbar_pos"),
01331   SettingEntry("gui.statusbar_pos"),
01332   SettingEntry("gui.pause_on_newgame"),
01333   SettingEntry("gui.advanced_vehicle_list"),
01334   SettingEntry("gui.timetable_in_ticks"),
01335   SettingEntry("gui.timetable_arrival_departure"),
01336   SettingEntry("gui.quick_goto"),
01337   SettingEntry("gui.default_rail_type"),
01338   SettingEntry("gui.disable_unsuitable_building"),
01339   SettingEntry("gui.persistent_buildingtools"),
01340   SettingEntry("gui.coloured_news_year"),
01341 };
01343 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
01344 
01345 static SettingEntry _settings_construction_signals[] = {
01346   SettingEntry("construction.signal_side"),
01347   SettingEntry("gui.enable_signal_gui"),
01348   SettingEntry("gui.drag_signals_density"),
01349   SettingEntry("gui.semaphore_build_before"),
01350   SettingEntry("gui.default_signal_type"),
01351   SettingEntry("gui.cycle_signal_types"),
01352 };
01354 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
01355 
01356 static SettingEntry _settings_construction[] = {
01357   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
01358   SettingEntry("construction.build_on_slopes"),
01359   SettingEntry("construction.autoslope"),
01360   SettingEntry("construction.extra_dynamite"),
01361   SettingEntry("construction.max_bridge_length"),
01362   SettingEntry("construction.max_tunnel_length"),
01363   SettingEntry("station.never_expire_airports"),
01364   SettingEntry("construction.freeform_edges"),
01365   SettingEntry("construction.extra_tree_placement"),
01366   SettingEntry("construction.command_pause_level"),
01367 };
01369 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
01370 
01371 static SettingEntry _settings_stations_cargo[] = {
01372   SettingEntry("order.improved_load"),
01373   SettingEntry("order.gradual_loading"),
01374   SettingEntry("order.selectgoods"),
01375 };
01377 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
01378 
01379 static SettingEntry _settings_stations[] = {
01380   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
01381   SettingEntry("station.adjacent_stations"),
01382   SettingEntry("station.distant_join_stations"),
01383   SettingEntry("station.station_spread"),
01384   SettingEntry("economy.station_noise_level"),
01385   SettingEntry("station.modified_catchment"),
01386   SettingEntry("construction.road_stop_on_town_road"),
01387   SettingEntry("construction.road_stop_on_competitor_road"),
01388 };
01390 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
01391 
01392 static SettingEntry _settings_economy_towns[] = {
01393   SettingEntry("economy.bribe"),
01394   SettingEntry("economy.exclusive_rights"),
01395   SettingEntry("economy.fund_roads"),
01396   SettingEntry("economy.town_layout"),
01397   SettingEntry("economy.allow_town_roads"),
01398   SettingEntry("economy.allow_town_level_crossings"),
01399   SettingEntry("economy.found_town"),
01400   SettingEntry("economy.mod_road_rebuild"),
01401   SettingEntry("economy.town_growth_rate"),
01402   SettingEntry("economy.larger_towns"),
01403   SettingEntry("economy.initial_city_size"),
01404 };
01406 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
01407 
01408 static SettingEntry _settings_economy_industries[] = {
01409   SettingEntry("construction.raw_industry_construction"),
01410   SettingEntry("construction.industry_platform"),
01411   SettingEntry("economy.multiple_industry_per_town"),
01412   SettingEntry("game_creation.oil_refinery_limit"),
01413 };
01415 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
01416 
01417 static SettingEntry _settings_economy[] = {
01418   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
01419   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
01420   SettingEntry("economy.inflation"),
01421   SettingEntry("economy.smooth_economy"),
01422   SettingEntry("economy.feeder_payment_share"),
01423 };
01425 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
01426 
01427 static SettingEntry _settings_ai_npc[] = {
01428   SettingEntry("ai.ai_in_multiplayer"),
01429   SettingEntry("ai.ai_disable_veh_train"),
01430   SettingEntry("ai.ai_disable_veh_roadveh"),
01431   SettingEntry("ai.ai_disable_veh_aircraft"),
01432   SettingEntry("ai.ai_disable_veh_ship"),
01433   SettingEntry("ai.ai_max_opcode_till_suspend"),
01434 };
01436 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
01437 
01438 static SettingEntry _settings_ai[] = {
01439   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
01440   SettingEntry("economy.give_money"),
01441   SettingEntry("economy.allow_shares"),
01442 };
01444 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
01445 
01446 static SettingEntry _settings_vehicles_routing[] = {
01447   SettingEntry("pf.pathfinder_for_trains"),
01448   SettingEntry("pf.forbid_90_deg"),
01449   SettingEntry("pf.pathfinder_for_roadvehs"),
01450   SettingEntry("pf.roadveh_queue"),
01451   SettingEntry("pf.pathfinder_for_ships"),
01452 };
01454 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
01455 
01456 static SettingEntry _settings_vehicles_autorenew[] = {
01457   SettingEntry("company.engine_renew"),
01458   SettingEntry("company.engine_renew_months"),
01459   SettingEntry("company.engine_renew_money"),
01460 };
01462 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
01463 
01464 static SettingEntry _settings_vehicles_servicing[] = {
01465   SettingEntry("vehicle.servint_ispercent"),
01466   SettingEntry("vehicle.servint_trains"),
01467   SettingEntry("vehicle.servint_roadveh"),
01468   SettingEntry("vehicle.servint_ships"),
01469   SettingEntry("vehicle.servint_aircraft"),
01470   SettingEntry("order.no_servicing_if_no_breakdowns"),
01471   SettingEntry("order.serviceathelipad"),
01472 };
01474 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
01475 
01476 static SettingEntry _settings_vehicles_trains[] = {
01477   SettingEntry("pf.reverse_at_signals"),
01478   SettingEntry("vehicle.train_acceleration_model"),
01479   SettingEntry("vehicle.train_slope_steepness"),
01480   SettingEntry("vehicle.max_train_length"),
01481   SettingEntry("vehicle.wagon_speed_limits"),
01482   SettingEntry("vehicle.disable_elrails"),
01483   SettingEntry("vehicle.freight_trains"),
01484   SettingEntry("gui.stop_location"),
01485 };
01487 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
01488 
01489 static SettingEntry _settings_vehicles[] = {
01490   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
01491   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
01492   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
01493   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
01494   SettingEntry("gui.new_nonstop"),
01495   SettingEntry("gui.order_review_system"),
01496   SettingEntry("gui.vehicle_income_warn"),
01497   SettingEntry("gui.lost_vehicle_warn"),
01498   SettingEntry("vehicle.never_expire_vehicles"),
01499   SettingEntry("vehicle.max_trains"),
01500   SettingEntry("vehicle.max_roadveh"),
01501   SettingEntry("vehicle.max_aircraft"),
01502   SettingEntry("vehicle.max_ships"),
01503   SettingEntry("vehicle.plane_speed"),
01504   SettingEntry("vehicle.plane_crashes"),
01505   SettingEntry("vehicle.dynamic_engines"),
01506   SettingEntry("vehicle.roadveh_acceleration_model"),
01507   SettingEntry("vehicle.roadveh_slope_steepness"),
01508   SettingEntry("vehicle.smoke_amount"),
01509 };
01511 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
01512 
01513 static SettingEntry _settings_main[] = {
01514   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
01515   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
01516   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
01517   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
01518   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
01519   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
01520 };
01521 
01523 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
01524 
01526 enum GameSettingsWidgets {
01527   SETTINGSEL_OPTIONSPANEL, 
01528   SETTINGSEL_SCROLLBAR,    
01529 };
01530 
01531 struct GameSettingsWindow : Window {
01532   static const int SETTINGTREE_LEFT_OFFSET   = 5; 
01533   static const int SETTINGTREE_RIGHT_OFFSET  = 5; 
01534   static const int SETTINGTREE_TOP_OFFSET    = 5; 
01535   static const int SETTINGTREE_BOTTOM_OFFSET = 5; 
01536 
01537   static GameSettings *settings_ptr;  
01538 
01539   SettingEntry *valuewindow_entry; 
01540   SettingEntry *clicked_entry; 
01541 
01542   Scrollbar *vscroll;
01543 
01544   GameSettingsWindow(const WindowDesc *desc) : Window()
01545   {
01546     static bool first_time = true;
01547 
01548     settings_ptr = &GetGameSettings();
01549 
01550     /* Build up the dynamic settings-array only once per OpenTTD session */
01551     if (first_time) {
01552       _settings_main_page.Init();
01553       first_time = false;
01554     } else {
01555       _settings_main_page.FoldAll(); // Close all sub-pages
01556     }
01557 
01558     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
01559     this->clicked_entry = NULL; // No numeric setting buttons are depressed
01560 
01561     this->CreateNestedTree(desc);
01562     this->vscroll = this->GetScrollbar(SETTINGSEL_SCROLLBAR);
01563     this->FinishInitNested(desc, 0);
01564 
01565     this->vscroll->SetCount(_settings_main_page.Length());
01566   }
01567 
01568   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01569   {
01570     if (widget != SETTINGSEL_OPTIONSPANEL) return;
01571 
01572     resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
01573     resize->width  = 1;
01574 
01575     size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
01576   }
01577 
01578   virtual void DrawWidget(const Rect &r, int widget) const
01579   {
01580     if (widget != SETTINGSEL_OPTIONSPANEL) return;
01581 
01582     _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
01583         this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity());
01584   }
01585 
01586   virtual void OnClick(Point pt, int widget, int click_count)
01587   {
01588     if (widget != SETTINGSEL_OPTIONSPANEL) return;
01589 
01590     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, SETTINGSEL_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET - 1);
01591     if (btn == INT_MAX) return;
01592 
01593     uint cur_row = 0;
01594     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
01595 
01596     if (pe == NULL) return;  // Clicked below the last setting of the page
01597 
01598     int x = (_current_text_dir == TD_RTL ? this->width - pt.x : pt.x) - SETTINGTREE_LEFT_OFFSET - (pe->level + 1) * LEVEL_WIDTH;  // Shift x coordinate
01599     if (x < 0) return;  // Clicked left of the entry
01600 
01601     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
01602       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
01603 
01604       this->vscroll->SetCount(_settings_main_page.Length());
01605       this->SetDirty();
01606       return;
01607     }
01608 
01609     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01610     const SettingDesc *sd = pe->d.entry.setting;
01611 
01612     /* return if action is only active in network, or only settable by server */
01613     if (!(sd->save.conv & SLF_NETWORK_NO) && _networking && !_network_server && !(sd->desc.flags & SGF_PER_COMPANY)) return;
01614     if ((sd->desc.flags & SGF_NETWORK_ONLY) && !_networking) return;
01615     if ((sd->desc.flags & SGF_NO_NETWORK) && _networking) return;
01616 
01617     const void *var = ResolveVariableAddress(settings_ptr, sd);
01618     int32 value = (int32)ReadValue(var, sd->save.conv);
01619 
01620     /* clicked on the icon on the left side. Either scroller or bool on/off */
01621     if (x < 21) {
01622       const SettingDescBase *sdb = &sd->desc;
01623       int32 oldvalue = value;
01624 
01625       switch (sdb->cmd) {
01626         case SDT_BOOLX: value ^= 1; break;
01627         case SDT_ONEOFMANY:
01628         case SDT_NUMX: {
01629           /* Add a dynamic step-size to the scroller. In a maximum of
01630            * 50-steps you should be able to get from min to max,
01631            * unless specified otherwise in the 'interval' variable
01632            * of the current setting. */
01633           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
01634           if (step == 0) step = 1;
01635 
01636           /* don't allow too fast scrolling */
01637           if ((this->flags4 & WF_TIMEOUT_MASK) > WF_TIMEOUT_TRIGGER) {
01638             _left_button_clicked = false;
01639             return;
01640           }
01641 
01642           /* Increase or decrease the value and clamp it to extremes */
01643           if (x >= 10) {
01644             value += step;
01645             if (sdb->min < 0) {
01646               assert((int32)sdb->max >= 0);
01647               if (value > (int32)sdb->max) value = (int32)sdb->max;
01648             } else {
01649               if ((uint32)value > sdb->max) value = (int32)sdb->max;
01650             }
01651             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
01652           } else {
01653             value -= step;
01654             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
01655           }
01656 
01657           /* Set up scroller timeout for numeric values */
01658           if (value != oldvalue && !(sd->desc.flags & SGF_MULTISTRING)) {
01659             if (this->clicked_entry != NULL) { // Release previous buttons if any
01660               this->clicked_entry->SetButtons(0);
01661             }
01662             this->clicked_entry = pe;
01663             this->clicked_entry->SetButtons((x >= 10) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
01664             this->flags4 |= WF_TIMEOUT_BEGIN;
01665             _left_button_clicked = false;
01666           }
01667           break;
01668         }
01669 
01670         default: NOT_REACHED();
01671       }
01672 
01673       if (value != oldvalue) {
01674         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01675           SetCompanySetting(pe->d.entry.index, value);
01676         } else {
01677           SetSettingValue(pe->d.entry.index, value);
01678         }
01679         this->SetDirty();
01680       }
01681     } else {
01682       /* only open editbox for types that its sensible for */
01683       if (sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
01684         /* Show the correct currency-translated value */
01685         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
01686 
01687         this->valuewindow_entry = pe;
01688         SetDParam(0, value);
01689         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, 100, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
01690       }
01691     }
01692   }
01693 
01694   virtual void OnTimeout()
01695   {
01696     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
01697       this->clicked_entry->SetButtons(0);
01698       this->clicked_entry = NULL;
01699       this->SetDirty();
01700     }
01701   }
01702 
01703   virtual void OnQueryTextFinished(char *str)
01704   {
01705     /* The user pressed cancel */
01706     if (str == NULL) return;
01707 
01708     assert(this->valuewindow_entry != NULL);
01709     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01710     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
01711 
01712     int32 value;
01713     if (!StrEmpty(str)) {
01714       value = atoi(str);
01715 
01716       /* Save the correct currency-translated value */
01717       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
01718     } else {
01719       value = (int32)(size_t)sd->desc.def;
01720     }
01721 
01722     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01723       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
01724     } else {
01725       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
01726     }
01727     this->SetDirty();
01728   }
01729 
01730   virtual void OnResize()
01731   {
01732     this->vscroll->SetCapacityFromWidget(this, SETTINGSEL_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
01733   }
01734 };
01735 
01736 GameSettings *GameSettingsWindow::settings_ptr = NULL;
01737 
01738 static const NWidgetPart _nested_settings_selection_widgets[] = {
01739   NWidget(NWID_HORIZONTAL),
01740     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
01741     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01742   EndContainer(),
01743   NWidget(NWID_HORIZONTAL),
01744     NWidget(WWT_PANEL, COLOUR_MAUVE, SETTINGSEL_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(SETTINGSEL_SCROLLBAR), EndContainer(),
01745     NWidget(NWID_VERTICAL),
01746       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, SETTINGSEL_SCROLLBAR),
01747       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
01748     EndContainer(),
01749   EndContainer(),
01750 };
01751 
01752 static const WindowDesc _settings_selection_desc(
01753   WDP_CENTER, 450, 397,
01754   WC_GAME_OPTIONS, WC_NONE,
01755   0,
01756   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
01757 );
01758 
01760 void ShowGameSettings()
01761 {
01762   DeleteWindowById(WC_GAME_OPTIONS, 0);
01763   new GameSettingsWindow(&_settings_selection_desc);
01764 }
01765 
01766 
01776 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
01777 {
01778   int colour = _colour_gradient[button_colour][2];
01779 
01780   DrawFrameRect(x,      y + 1, x +  9, y + 9, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
01781   DrawFrameRect(x + 10, y + 1, x + 19, y + 9, button_colour, (state == 2) ? FR_LOWERED : FR_NONE);
01782   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
01783   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + 10, y + WD_IMGBTN_TOP);
01784 
01785   /* Grey out the buttons that aren't clickable */
01786   bool rtl = _current_text_dir == TD_RTL;
01787   if (rtl ? !clickable_right : !clickable_left) {
01788     GfxFillRect(x +  1, y + 1, x +  1 + 8, y + 8, colour, FILLRECT_CHECKER);
01789   }
01790   if (rtl ? !clickable_left : !clickable_right) {
01791     GfxFillRect(x + 11, y + 1, x + 11 + 8, y + 8, colour, FILLRECT_CHECKER);
01792   }
01793 }
01794 
01796 enum CustomCurrencyWidgets {
01797   CUSTCURR_RATE_DOWN,
01798   CUSTCURR_RATE_UP,
01799   CUSTCURR_RATE,
01800   CUSTCURR_SEPARATOR_EDIT,
01801   CUSTCURR_SEPARATOR,
01802   CUSTCURR_PREFIX_EDIT,
01803   CUSTCURR_PREFIX,
01804   CUSTCURR_SUFFIX_EDIT,
01805   CUSTCURR_SUFFIX,
01806   CUSTCURR_YEAR_DOWN,
01807   CUSTCURR_YEAR_UP,
01808   CUSTCURR_YEAR,
01809   CUSTCURR_PREVIEW,
01810 };
01811 
01812 struct CustomCurrencyWindow : Window {
01813   int query_widget;
01814 
01815   CustomCurrencyWindow(const WindowDesc *desc) : Window()
01816   {
01817     this->InitNested(desc);
01818 
01819     SetButtonState();
01820   }
01821 
01822   void SetButtonState()
01823   {
01824     this->SetWidgetDisabledState(CUSTCURR_RATE_DOWN, _custom_currency.rate == 1);
01825     this->SetWidgetDisabledState(CUSTCURR_RATE_UP, _custom_currency.rate == UINT16_MAX);
01826     this->SetWidgetDisabledState(CUSTCURR_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
01827     this->SetWidgetDisabledState(CUSTCURR_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
01828   }
01829 
01830   virtual void SetStringParameters(int widget) const
01831   {
01832     switch (widget) {
01833       case CUSTCURR_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
01834       case CUSTCURR_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
01835       case CUSTCURR_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
01836       case CUSTCURR_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
01837       case CUSTCURR_YEAR:
01838         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
01839         SetDParam(1, _custom_currency.to_euro);
01840         break;
01841 
01842       case CUSTCURR_PREVIEW:
01843         SetDParam(0, 10000);
01844         break;
01845     }
01846   }
01847 
01848   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01849   {
01850     switch (widget) {
01851       /* Set the appropriate width for the edit 'buttons' */
01852       case CUSTCURR_SEPARATOR_EDIT:
01853       case CUSTCURR_PREFIX_EDIT:
01854       case CUSTCURR_SUFFIX_EDIT:
01855         size->width  = this->GetWidget<NWidgetBase>(CUSTCURR_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(CUSTCURR_RATE_UP)->smallest_x;
01856         break;
01857 
01858       /* Make sure the window is wide enough for the widest exchange rate */
01859       case CUSTCURR_RATE:
01860         SetDParam(0, 1);
01861         SetDParam(1, INT32_MAX);
01862         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
01863         break;
01864     }
01865   }
01866 
01867   virtual void OnClick(Point pt, int widget, int click_count)
01868   {
01869     int line = 0;
01870     int len = 0;
01871     StringID str = 0;
01872     CharSetFilter afilter = CS_ALPHANUMERAL;
01873 
01874     switch (widget) {
01875       case CUSTCURR_RATE_DOWN:
01876         if (_custom_currency.rate > 1) _custom_currency.rate--;
01877         if (_custom_currency.rate == 1) this->DisableWidget(CUSTCURR_RATE_DOWN);
01878         this->EnableWidget(CUSTCURR_RATE_UP);
01879         break;
01880 
01881       case CUSTCURR_RATE_UP:
01882         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
01883         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(CUSTCURR_RATE_UP);
01884         this->EnableWidget(CUSTCURR_RATE_DOWN);
01885         break;
01886 
01887       case CUSTCURR_RATE:
01888         SetDParam(0, _custom_currency.rate);
01889         str = STR_JUST_INT;
01890         len = 5;
01891         line = CUSTCURR_RATE;
01892         afilter = CS_NUMERAL;
01893         break;
01894 
01895       case CUSTCURR_SEPARATOR_EDIT:
01896       case CUSTCURR_SEPARATOR:
01897         SetDParamStr(0, _custom_currency.separator);
01898         str = STR_JUST_RAW_STRING;
01899         len = 1;
01900         line = CUSTCURR_SEPARATOR;
01901         break;
01902 
01903       case CUSTCURR_PREFIX_EDIT:
01904       case CUSTCURR_PREFIX:
01905         SetDParamStr(0, _custom_currency.prefix);
01906         str = STR_JUST_RAW_STRING;
01907         len = 12;
01908         line = CUSTCURR_PREFIX;
01909         break;
01910 
01911       case CUSTCURR_SUFFIX_EDIT:
01912       case CUSTCURR_SUFFIX:
01913         SetDParamStr(0, _custom_currency.suffix);
01914         str = STR_JUST_RAW_STRING;
01915         len = 12;
01916         line = CUSTCURR_SUFFIX;
01917         break;
01918 
01919       case CUSTCURR_YEAR_DOWN:
01920         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
01921         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(CUSTCURR_YEAR_DOWN);
01922         this->EnableWidget(CUSTCURR_YEAR_UP);
01923         break;
01924 
01925       case CUSTCURR_YEAR_UP:
01926         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
01927         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(CUSTCURR_YEAR_UP);
01928         this->EnableWidget(CUSTCURR_YEAR_DOWN);
01929         break;
01930 
01931       case CUSTCURR_YEAR:
01932         SetDParam(0, _custom_currency.to_euro);
01933         str = STR_JUST_INT;
01934         len = 7;
01935         line = CUSTCURR_YEAR;
01936         afilter = CS_NUMERAL;
01937         break;
01938     }
01939 
01940     if (len != 0) {
01941       this->query_widget = line;
01942       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, 250, this, afilter, QSF_NONE);
01943     }
01944 
01945     this->flags4 |= WF_TIMEOUT_BEGIN;
01946     this->SetDirty();
01947   }
01948 
01949   virtual void OnQueryTextFinished(char *str)
01950   {
01951     if (str == NULL) return;
01952 
01953     switch (this->query_widget) {
01954       case CUSTCURR_RATE:
01955         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
01956         break;
01957 
01958       case CUSTCURR_SEPARATOR: // Thousands seperator
01959         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
01960         break;
01961 
01962       case CUSTCURR_PREFIX:
01963         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
01964         break;
01965 
01966       case CUSTCURR_SUFFIX:
01967         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
01968         break;
01969 
01970       case CUSTCURR_YEAR: { // Year to switch to euro
01971         int val = atoi(str);
01972 
01973         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
01974         break;
01975       }
01976     }
01977     MarkWholeScreenDirty();
01978     SetButtonState();
01979   }
01980 
01981   virtual void OnTimeout()
01982   {
01983     this->SetDirty();
01984   }
01985 };
01986 
01987 static const NWidgetPart _nested_cust_currency_widgets[] = {
01988   NWidget(NWID_HORIZONTAL),
01989     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
01990     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
01991   EndContainer(),
01992   NWidget(WWT_PANEL, COLOUR_GREY),
01993     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
01994       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
01995         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
01996         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
01997         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
01998         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
01999       EndContainer(),
02000       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02001         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
02002         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02003         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
02004       EndContainer(),
02005       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02006         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
02007         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02008         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
02009       EndContainer(),
02010       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02011         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
02012         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02013         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
02014       EndContainer(),
02015       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02016         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02017         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02018         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02019         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
02020       EndContainer(),
02021     EndContainer(),
02022     NWidget(WWT_LABEL, COLOUR_BLUE, CUSTCURR_PREVIEW),
02023                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
02024   EndContainer(),
02025 };
02026 
02027 static const WindowDesc _cust_currency_desc(
02028   WDP_CENTER, 0, 0,
02029   WC_CUSTOM_CURRENCY, WC_NONE,
02030   WDF_UNCLICK_BUTTONS,
02031   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
02032 );
02033 
02035 static void ShowCustCurrency()
02036 {
02037   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
02038   new CustomCurrencyWindow(&_cust_currency_desc);
02039 }