settings_gui.cpp

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00001 /* $Id: settings_gui.cpp 24900 2013-01-08 22:46:42Z planetmaker $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "currency.h"
00014 #include "error.h"
00015 #include "settings_gui.h"
00016 #include "textbuf_gui.h"
00017 #include "command_func.h"
00018 #include "screenshot.h"
00019 #include "network/network.h"
00020 #include "town.h"
00021 #include "settings_internal.h"
00022 #include "newgrf_townname.h"
00023 #include "strings_func.h"
00024 #include "window_func.h"
00025 #include "string_func.h"
00026 #include "widgets/dropdown_type.h"
00027 #include "widgets/dropdown_func.h"
00028 #include "highscore.h"
00029 #include "base_media_base.h"
00030 #include "company_base.h"
00031 #include "company_func.h"
00032 #include "viewport_func.h"
00033 #include "core/geometry_func.hpp"
00034 #include "ai/ai.hpp"
00035 #include "blitter/factory.hpp"
00036 #include "language.h"
00037 #include "textfile_gui.h"
00038 #include "stringfilter_type.h"
00039 #include "querystring_gui.h"
00040 
00041 
00042 static const StringID _units_dropdown[] = {
00043   STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,
00044   STR_GAME_OPTIONS_MEASURING_UNITS_METRIC,
00045   STR_GAME_OPTIONS_MEASURING_UNITS_SI,
00046   INVALID_STRING_ID
00047 };
00048 
00049 static const StringID _driveside_dropdown[] = {
00050   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT,
00051   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_RIGHT,
00052   INVALID_STRING_ID
00053 };
00054 
00055 static const StringID _autosave_dropdown[] = {
00056   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
00057   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_MONTH,
00058   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_3_MONTHS,
00059   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_6_MONTHS,
00060   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_12_MONTHS,
00061   INVALID_STRING_ID,
00062 };
00063 
00064 int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1; 
00065 static StringID *_grf_names = NULL; 
00066 static int _nb_grf_names = 0;       
00067 
00068 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd);
00069 
00071 void InitGRFTownGeneratorNames()
00072 {
00073   free(_grf_names);
00074   _grf_names = GetGRFTownNameList();
00075   _nb_grf_names = 0;
00076   for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;
00077 }
00078 
00084 static inline StringID TownName(int town_name)
00085 {
00086   if (town_name < _nb_orig_names) return STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + town_name;
00087   town_name -= _nb_orig_names;
00088   if (town_name < _nb_grf_names) return _grf_names[town_name];
00089   return STR_UNDEFINED;
00090 }
00091 
00096 static int GetCurRes()
00097 {
00098   int i;
00099 
00100   for (i = 0; i != _num_resolutions; i++) {
00101     if ((int)_resolutions[i].width == _screen.width &&
00102         (int)_resolutions[i].height == _screen.height) {
00103       break;
00104     }
00105   }
00106   return i;
00107 }
00108 
00109 static void ShowCustCurrency();
00110 
00111 template <class T>
00112 static DropDownList *BuiltSetDropDownList(int *selected_index)
00113 {
00114   int n = T::GetNumSets();
00115   *selected_index = T::GetIndexOfUsedSet();
00116 
00117   DropDownList *list = new DropDownList();
00118   for (int i = 0; i < n; i++) {
00119     list->push_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, (_game_mode == GM_MENU) ? false : (*selected_index != i)));
00120   }
00121 
00122   return list;
00123 }
00124 
00126 template <class TBaseSet>
00127 struct BaseSetTextfileWindow : public TextfileWindow {
00128   const TBaseSet* baseset; 
00129   StringID content_type;   
00130 
00131   BaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type) : TextfileWindow(file_type), baseset(baseset), content_type(content_type)
00132   {
00133     const char *textfile = this->baseset->GetTextfile(file_type);
00134     this->LoadTextfile(textfile, BASESET_DIR);
00135   }
00136 
00137   /* virtual */ void SetStringParameters(int widget) const
00138   {
00139     if (widget == WID_TF_CAPTION) {
00140       SetDParam(0, content_type);
00141       SetDParamStr(1, this->baseset->name);
00142     }
00143   }
00144 };
00145 
00152 template <class TBaseSet>
00153 void ShowBaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type)
00154 {
00155   DeleteWindowByClass(WC_TEXTFILE);
00156   new BaseSetTextfileWindow<TBaseSet>(file_type, baseset, content_type);
00157 }
00158 
00159 struct GameOptionsWindow : Window {
00160   GameSettings *opt;
00161   bool reload;
00162 
00163   GameOptionsWindow(const WindowDesc *desc) : Window()
00164   {
00165     this->opt = &GetGameSettings();
00166     this->reload = false;
00167 
00168     this->InitNested(desc, WN_GAME_OPTIONS_GAME_OPTIONS);
00169     this->OnInvalidateData(0);
00170   }
00171 
00172   ~GameOptionsWindow()
00173   {
00174     DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
00175     if (this->reload) _switch_mode = SM_MENU;
00176   }
00177 
00184   DropDownList *BuildDropDownList(int widget, int *selected_index) const
00185   {
00186     DropDownList *list = NULL;
00187     switch (widget) {
00188       case WID_GO_CURRENCY_DROPDOWN: { // Setup currencies dropdown
00189         list = new DropDownList();
00190         *selected_index = this->opt->locale.currency;
00191         StringID *items = BuildCurrencyDropdown();
00192         uint disabled = _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies();
00193         int custom_index = -1;
00194 
00195         /* Add non-custom currencies; sorted naturally */
00196         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00197           if (*items == STR_GAME_OPTIONS_CURRENCY_CUSTOM) {
00198             custom_index = i;
00199           } else {
00200             list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
00201           }
00202         }
00203         list->sort(DropDownListStringItem::NatSortFunc);
00204 
00205         /* Append custom currency at the end */
00206         if (custom_index >= 0) {
00207           list->push_back(new DropDownListItem(-1, false)); // separator line
00208           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_CURRENCY_CUSTOM, custom_index, HasBit(disabled, custom_index)));
00209         }
00210         break;
00211       }
00212 
00213       case WID_GO_DISTANCE_DROPDOWN: { // Setup distance unit dropdown
00214         list = new DropDownList();
00215         *selected_index = this->opt->locale.units;
00216         const StringID *items = _units_dropdown;
00217         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00218           list->push_back(new DropDownListStringItem(*items, i, false));
00219         }
00220         break;
00221       }
00222 
00223       case WID_GO_ROADSIDE_DROPDOWN: { // Setup road-side dropdown
00224         list = new DropDownList();
00225         *selected_index = this->opt->vehicle.road_side;
00226         const StringID *items = _driveside_dropdown;
00227         uint disabled = 0;
00228 
00229         /* You can only change the drive side if you are in the menu or ingame with
00230          * no vehicles present. In a networking game only the server can change it */
00231         extern bool RoadVehiclesAreBuilt();
00232         if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server)) {
00233           disabled = ~(1 << this->opt->vehicle.road_side); // disable the other value
00234         }
00235 
00236         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00237           list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
00238         }
00239         break;
00240       }
00241 
00242       case WID_GO_TOWNNAME_DROPDOWN: { // Setup townname dropdown
00243         list = new DropDownList();
00244         *selected_index = this->opt->game_creation.town_name;
00245 
00246         int enabled_item = (_game_mode == GM_MENU || Town::GetNumItems() == 0) ? -1 : *selected_index;
00247 
00248         /* Add and sort original townnames generators */
00249         for (int i = 0; i < _nb_orig_names; i++) {
00250           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + i, i, enabled_item != i && enabled_item >= 0));
00251         }
00252         list->sort(DropDownListStringItem::NatSortFunc);
00253 
00254         /* Add and sort newgrf townnames generators */
00255         DropDownList newgrf_names;
00256         for (int i = 0; i < _nb_grf_names; i++) {
00257           int result = _nb_orig_names + i;
00258           newgrf_names.push_back(new DropDownListStringItem(_grf_names[i], result, enabled_item != result && enabled_item >= 0));
00259         }
00260         newgrf_names.sort(DropDownListStringItem::NatSortFunc);
00261 
00262         /* Insert newgrf_names at the top of the list */
00263         if (newgrf_names.size() > 0) {
00264           newgrf_names.push_back(new DropDownListItem(-1, false)); // separator line
00265           list->splice(list->begin(), newgrf_names);
00266         }
00267         break;
00268       }
00269 
00270       case WID_GO_AUTOSAVE_DROPDOWN: { // Setup autosave dropdown
00271         list = new DropDownList();
00272         *selected_index = _settings_client.gui.autosave;
00273         const StringID *items = _autosave_dropdown;
00274         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00275           list->push_back(new DropDownListStringItem(*items, i, false));
00276         }
00277         break;
00278       }
00279 
00280       case WID_GO_LANG_DROPDOWN: { // Setup interface language dropdown
00281         list = new DropDownList();
00282         for (uint i = 0; i < _languages.Length(); i++) {
00283           if (&_languages[i] == _current_language) *selected_index = i;
00284           list->push_back(new DropDownListStringItem(SPECSTR_LANGUAGE_START + i, i, false));
00285         }
00286         list->sort(DropDownListStringItem::NatSortFunc);
00287         break;
00288       }
00289 
00290       case WID_GO_RESOLUTION_DROPDOWN: // Setup resolution dropdown
00291         list = new DropDownList();
00292         *selected_index = GetCurRes();
00293         for (int i = 0; i < _num_resolutions; i++) {
00294           list->push_back(new DropDownListStringItem(SPECSTR_RESOLUTION_START + i, i, false));
00295         }
00296         break;
00297 
00298       case WID_GO_SCREENSHOT_DROPDOWN: // Setup screenshot format dropdown
00299         list = new DropDownList();
00300         *selected_index = _cur_screenshot_format;
00301         for (uint i = 0; i < _num_screenshot_formats; i++) {
00302           if (!GetScreenshotFormatSupports_32bpp(i) && BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 32) continue;
00303           list->push_back(new DropDownListStringItem(SPECSTR_SCREENSHOT_START + i, i, false));
00304         }
00305         break;
00306 
00307       case WID_GO_BASE_GRF_DROPDOWN:
00308         list = BuiltSetDropDownList<BaseGraphics>(selected_index);
00309         break;
00310 
00311       case WID_GO_BASE_SFX_DROPDOWN:
00312         list = BuiltSetDropDownList<BaseSounds>(selected_index);
00313         break;
00314 
00315       case WID_GO_BASE_MUSIC_DROPDOWN:
00316         list = BuiltSetDropDownList<BaseMusic>(selected_index);
00317         break;
00318 
00319       default:
00320         return NULL;
00321     }
00322 
00323     return list;
00324   }
00325 
00326   virtual void SetStringParameters(int widget) const
00327   {
00328     switch (widget) {
00329       case WID_GO_CURRENCY_DROPDOWN:   SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
00330       case WID_GO_DISTANCE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL + this->opt->locale.units); break;
00331       case WID_GO_ROADSIDE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT + this->opt->vehicle.road_side); break;
00332       case WID_GO_TOWNNAME_DROPDOWN:   SetDParam(0, TownName(this->opt->game_creation.town_name)); break;
00333       case WID_GO_AUTOSAVE_DROPDOWN:   SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
00334       case WID_GO_LANG_DROPDOWN:       SetDParamStr(0, _current_language->own_name); break;
00335       case WID_GO_RESOLUTION_DROPDOWN: SetDParam(0, GetCurRes() == _num_resolutions ? STR_GAME_OPTIONS_RESOLUTION_OTHER : SPECSTR_RESOLUTION_START + GetCurRes()); break;
00336       case WID_GO_SCREENSHOT_DROPDOWN: SetDParam(0, SPECSTR_SCREENSHOT_START + _cur_screenshot_format); break;
00337       case WID_GO_BASE_GRF_DROPDOWN:   SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
00338       case WID_GO_BASE_GRF_STATUS:     SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
00339       case WID_GO_BASE_SFX_DROPDOWN:   SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
00340       case WID_GO_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
00341       case WID_GO_BASE_MUSIC_STATUS:   SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
00342     }
00343   }
00344 
00345   virtual void DrawWidget(const Rect &r, int widget) const
00346   {
00347     switch (widget) {
00348       case WID_GO_BASE_GRF_DESCRIPTION:
00349         SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00350         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00351         break;
00352 
00353       case WID_GO_BASE_SFX_DESCRIPTION:
00354         SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00355         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00356         break;
00357 
00358       case WID_GO_BASE_MUSIC_DESCRIPTION:
00359         SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00360         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00361         break;
00362     }
00363   }
00364 
00365   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00366   {
00367     switch (widget) {
00368       case WID_GO_BASE_GRF_DESCRIPTION:
00369         /* Find the biggest description for the default size. */
00370         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00371           SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00372           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00373         }
00374         break;
00375 
00376       case WID_GO_BASE_GRF_STATUS:
00377         /* Find the biggest description for the default size. */
00378         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00379           uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
00380           if (invalid_files == 0) continue;
00381 
00382           SetDParam(0, invalid_files);
00383           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
00384         }
00385         break;
00386 
00387       case WID_GO_BASE_SFX_DESCRIPTION:
00388         /* Find the biggest description for the default size. */
00389         for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
00390           SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00391           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00392         }
00393         break;
00394 
00395       case WID_GO_BASE_MUSIC_DESCRIPTION:
00396         /* Find the biggest description for the default size. */
00397         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00398           SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00399           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00400         }
00401         break;
00402 
00403       case WID_GO_BASE_MUSIC_STATUS:
00404         /* Find the biggest description for the default size. */
00405         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00406           uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
00407           if (invalid_files == 0) continue;
00408 
00409           SetDParam(0, invalid_files);
00410           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
00411         }
00412         break;
00413 
00414       default: {
00415         int selected;
00416         DropDownList *list = this->BuildDropDownList(widget, &selected);
00417         if (list != NULL) {
00418           /* Find the biggest item for the default size. */
00419           for (DropDownList::iterator it = list->begin(); it != list->end(); it++) {
00420             static const Dimension extra = {WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT, WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM};
00421             Dimension string_dim;
00422             int width = (*it)->Width();
00423             string_dim.width = width + extra.width;
00424             string_dim.height = (*it)->Height(width) + extra.height;
00425             *size = maxdim(*size, string_dim);
00426             delete *it;
00427           }
00428           delete list;
00429         }
00430       }
00431     }
00432   }
00433 
00434   virtual void OnClick(Point pt, int widget, int click_count)
00435   {
00436     if (widget >= WID_GO_BASE_GRF_TEXTFILE && widget < WID_GO_BASE_GRF_TEXTFILE + TFT_END) {
00437       if (BaseGraphics::GetUsedSet() == NULL) return;
00438 
00439       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_GRF_TEXTFILE), BaseGraphics::GetUsedSet(), STR_CONTENT_TYPE_BASE_GRAPHICS);
00440       return;
00441     }
00442     if (widget >= WID_GO_BASE_SFX_TEXTFILE && widget < WID_GO_BASE_SFX_TEXTFILE + TFT_END) {
00443       if (BaseSounds::GetUsedSet() == NULL) return;
00444 
00445       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_SFX_TEXTFILE), BaseSounds::GetUsedSet(), STR_CONTENT_TYPE_BASE_SOUNDS);
00446       return;
00447     }
00448     if (widget >= WID_GO_BASE_MUSIC_TEXTFILE && widget < WID_GO_BASE_MUSIC_TEXTFILE + TFT_END) {
00449       if (BaseMusic::GetUsedSet() == NULL) return;
00450 
00451       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_MUSIC_TEXTFILE), BaseMusic::GetUsedSet(), STR_CONTENT_TYPE_BASE_MUSIC);
00452       return;
00453     }
00454     switch (widget) {
00455       case WID_GO_FULLSCREEN_BUTTON: // Click fullscreen on/off
00456         /* try to toggle full-screen on/off */
00457         if (!ToggleFullScreen(!_fullscreen)) {
00458           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
00459         }
00460         this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00461         this->SetDirty();
00462         break;
00463 
00464       default: {
00465         int selected;
00466         DropDownList *list = this->BuildDropDownList(widget, &selected);
00467         if (list != NULL) {
00468           ShowDropDownList(this, list, selected, widget);
00469         }
00470         break;
00471       }
00472     }
00473   }
00474 
00480   template <class T>
00481   void SetMediaSet(int index)
00482   {
00483     if (_game_mode == GM_MENU) {
00484       const char *name = T::GetSet(index)->name;
00485 
00486       free(T::ini_set);
00487       T::ini_set = strdup(name);
00488 
00489       T::SetSet(name);
00490       this->reload = true;
00491       this->InvalidateData();
00492     }
00493   }
00494 
00495   virtual void OnDropdownSelect(int widget, int index)
00496   {
00497     switch (widget) {
00498       case WID_GO_CURRENCY_DROPDOWN: // Currency
00499         if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();
00500         this->opt->locale.currency = index;
00501         ReInitAllWindows();
00502         break;
00503 
00504       case WID_GO_DISTANCE_DROPDOWN: // Measuring units
00505         this->opt->locale.units = index;
00506         MarkWholeScreenDirty();
00507         break;
00508 
00509       case WID_GO_ROADSIDE_DROPDOWN: // Road side
00510         if (this->opt->vehicle.road_side != index) { // only change if setting changed
00511           uint i;
00512           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
00513           SetSettingValue(i, index);
00514           MarkWholeScreenDirty();
00515         }
00516         break;
00517 
00518       case WID_GO_TOWNNAME_DROPDOWN: // Town names
00519         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
00520           this->opt->game_creation.town_name = index;
00521           SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_GAME_OPTIONS);
00522         }
00523         break;
00524 
00525       case WID_GO_AUTOSAVE_DROPDOWN: // Autosave options
00526         _settings_client.gui.autosave = index;
00527         this->SetDirty();
00528         break;
00529 
00530       case WID_GO_LANG_DROPDOWN: // Change interface language
00531         ReadLanguagePack(&_languages[index]);
00532         DeleteWindowByClass(WC_QUERY_STRING);
00533         CheckForMissingGlyphs();
00534         UpdateAllVirtCoords();
00535         ReInitAllWindows();
00536         break;
00537 
00538       case WID_GO_RESOLUTION_DROPDOWN: // Change resolution
00539         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
00540           this->SetDirty();
00541         }
00542         break;
00543 
00544       case WID_GO_SCREENSHOT_DROPDOWN: // Change screenshot format
00545         SetScreenshotFormat(index);
00546         this->SetDirty();
00547         break;
00548 
00549       case WID_GO_BASE_GRF_DROPDOWN:
00550         this->SetMediaSet<BaseGraphics>(index);
00551         break;
00552 
00553       case WID_GO_BASE_SFX_DROPDOWN:
00554         this->SetMediaSet<BaseSounds>(index);
00555         break;
00556 
00557       case WID_GO_BASE_MUSIC_DROPDOWN:
00558         this->SetMediaSet<BaseMusic>(index);
00559         break;
00560     }
00561   }
00562 
00568   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00569   {
00570     if (!gui_scope) return;
00571     this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00572 
00573     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
00574     this->GetWidget<NWidgetCore>(WID_GO_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
00575 
00576     for (TextfileType tft = TFT_BEGIN; tft < TFT_END; tft++) {
00577       this->SetWidgetDisabledState(WID_GO_BASE_GRF_TEXTFILE + tft, BaseGraphics::GetUsedSet() == NULL || BaseGraphics::GetUsedSet()->GetTextfile(tft) == NULL);
00578       this->SetWidgetDisabledState(WID_GO_BASE_SFX_TEXTFILE + tft, BaseSounds::GetUsedSet() == NULL || BaseSounds::GetUsedSet()->GetTextfile(tft) == NULL);
00579       this->SetWidgetDisabledState(WID_GO_BASE_MUSIC_TEXTFILE + tft, BaseMusic::GetUsedSet() == NULL || BaseMusic::GetUsedSet()->GetTextfile(tft) == NULL);
00580     }
00581 
00582     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
00583     this->GetWidget<NWidgetCore>(WID_GO_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
00584   }
00585 };
00586 
00587 static const NWidgetPart _nested_game_options_widgets[] = {
00588   NWidget(NWID_HORIZONTAL),
00589     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00590     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00591   EndContainer(),
00592   NWidget(WWT_PANEL, COLOUR_GREY, WID_GO_BACKGROUND), SetPIP(6, 6, 10),
00593     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
00594       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00595         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
00596           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_CURRENCY_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00597         EndContainer(),
00598         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
00599           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_ROADSIDE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00600         EndContainer(),
00601         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
00602           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
00603         EndContainer(),
00604         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
00605           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_RESOLUTION_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP), SetFill(1, 0), SetPadding(0, 0, 3, 0),
00606           NWidget(NWID_HORIZONTAL),
00607             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
00608             NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
00609           EndContainer(),
00610         EndContainer(),
00611       EndContainer(),
00612 
00613       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00614         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
00615           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_DISTANCE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_MEASURING_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00616         EndContainer(),
00617         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
00618           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_TOWNNAME_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_TOWN_NAMES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00619         EndContainer(),
00620         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
00621           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
00622         EndContainer(),
00623         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
00624           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_SCREENSHOT_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_SCREENSHOT_FORMAT_TOOLTIP), SetFill(1, 0),
00625         EndContainer(),
00626         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
00627       EndContainer(),
00628     EndContainer(),
00629 
00630     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
00631       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00632         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
00633         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00634       EndContainer(),
00635       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_GRF_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00636       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00637         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00638         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00639         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00640       EndContainer(),
00641     EndContainer(),
00642 
00643     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
00644       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00645         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
00646         NWidget(NWID_SPACER), SetFill(1, 0),
00647       EndContainer(),
00648       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_SFX_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_SFX_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00649       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00650         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00651         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00652         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00653       EndContainer(),
00654     EndContainer(),
00655 
00656     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
00657       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00658         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
00659         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00660       EndContainer(),
00661       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00662       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00663         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00664         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00665         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00666       EndContainer(),
00667     EndContainer(),
00668   EndContainer(),
00669 };
00670 
00671 static const WindowDesc _game_options_desc(
00672   WDP_CENTER, 0, 0,
00673   WC_GAME_OPTIONS, WC_NONE,
00674   0,
00675   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
00676 );
00677 
00679 void ShowGameOptions()
00680 {
00681   DeleteWindowByClass(WC_GAME_OPTIONS);
00682   new GameOptionsWindow(&_game_options_desc);
00683 }
00684 
00685 static int SETTING_HEIGHT = 11;    
00686 static const int LEVEL_WIDTH = 15; 
00687 
00692 enum SettingEntryFlags {
00693   SEF_LEFT_DEPRESSED  = 0x01, 
00694   SEF_RIGHT_DEPRESSED = 0x02, 
00695   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), 
00696 
00697   SEF_LAST_FIELD = 0x04, 
00698   SEF_FILTERED   = 0x08, 
00699 
00700   /* Entry kind */
00701   SEF_SETTING_KIND = 0x10, 
00702   SEF_SUBTREE_KIND = 0x20, 
00703   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND), 
00704 };
00705 
00706 struct SettingsPage; // Forward declaration
00707 
00709 struct SettingEntrySubtree {
00710   SettingsPage *page; 
00711   bool folded;        
00712   StringID title;     
00713 };
00714 
00716 struct SettingEntrySetting {
00717   const char *name;           
00718   const SettingDesc *setting; 
00719   uint index;                 
00720 };
00721 
00723 enum RestrictionMode {
00724   RM_BASIC,                            
00725   RM_ADVANCED,                         
00726   RM_ALL,                              
00727   RM_CHANGED_AGAINST_DEFAULT,          
00728   RM_CHANGED_AGAINST_NEW,              
00729   RM_END,                              
00730 };
00731 
00733 struct SettingFilter {
00734   StringFilter string;     
00735   RestrictionMode mode;    
00736   SettingType type;       
00737 };
00738 
00740 struct SettingEntry {
00741   byte flags; 
00742   byte level; 
00743   union {
00744     SettingEntrySetting entry; 
00745     SettingEntrySubtree sub;   
00746   } d; 
00747 
00748   SettingEntry(const char *nm);
00749   SettingEntry(SettingsPage *sub, StringID title);
00750 
00751   void Init(byte level);
00752   void FoldAll();
00753   void UnFoldAll();
00754   void SetButtons(byte new_val);
00755 
00760   void SetLastField(bool last_field) { if (last_field) SETBITS(this->flags, SEF_LAST_FIELD); else CLRBITS(this->flags, SEF_LAST_FIELD); }
00761 
00762   uint Length() const;
00763   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
00764   bool IsVisible(const SettingEntry *item) const;
00765   SettingEntry *FindEntry(uint row, uint *cur_row);
00766   uint GetMaxHelpHeight(int maxw);
00767 
00768   bool IsFiltered() const;
00769   bool UpdateFilterState(SettingFilter &filter, bool force_visible);
00770 
00771   uint Draw(GameSettings *settings_ptr, int base_x, int base_y, int max_x, uint first_row, uint max_row, uint cur_row, uint parent_last, SettingEntry *selected);
00772 
00777   inline StringID GetHelpText()
00778   {
00779     assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
00780     return this->d.entry.setting->desc.str_help;
00781   }
00782 
00783   void SetValueDParams(uint first_param, int32 value);
00784 
00785 private:
00786   void DrawSetting(GameSettings *settings_ptr, int x, int y, int max_x, int state, bool highlight);
00787   bool IsVisibleByRestrictionMode(RestrictionMode mode) const;
00788 };
00789 
00791 struct SettingsPage {
00792   SettingEntry *entries; 
00793   byte num;              
00794 
00795   void Init(byte level = 0);
00796   void FoldAll();
00797   void UnFoldAll();
00798 
00799   uint Length() const;
00800   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
00801   bool IsVisible(const SettingEntry *item) const;
00802   SettingEntry *FindEntry(uint row, uint *cur_row) const;
00803   uint GetMaxHelpHeight(int maxw);
00804 
00805   bool UpdateFilterState(SettingFilter &filter, bool force_visible);
00806 
00807   uint Draw(GameSettings *settings_ptr, int base_x, int base_y, int max_x, uint first_row, uint max_row, SettingEntry *selected, uint cur_row = 0, uint parent_last = 0) const;
00808 };
00809 
00810 
00811 /* == SettingEntry methods == */
00812 
00817 SettingEntry::SettingEntry(const char *nm)
00818 {
00819   this->flags = SEF_SETTING_KIND;
00820   this->level = 0;
00821   this->d.entry.name = nm;
00822   this->d.entry.setting = NULL;
00823   this->d.entry.index = 0;
00824 }
00825 
00831 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
00832 {
00833   this->flags = SEF_SUBTREE_KIND;
00834   this->level = 0;
00835   this->d.sub.page = sub;
00836   this->d.sub.folded = true;
00837   this->d.sub.title = title;
00838 }
00839 
00844 void SettingEntry::Init(byte level)
00845 {
00846   this->level = level;
00847 
00848   switch (this->flags & SEF_KIND_MASK) {
00849     case SEF_SETTING_KIND:
00850       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
00851       assert(this->d.entry.setting != NULL);
00852       break;
00853     case SEF_SUBTREE_KIND:
00854       this->d.sub.page->Init(level + 1);
00855       break;
00856     default: NOT_REACHED();
00857   }
00858 }
00859 
00861 void SettingEntry::FoldAll()
00862 {
00863   if (this->IsFiltered()) return;
00864   switch (this->flags & SEF_KIND_MASK) {
00865     case SEF_SETTING_KIND:
00866       break;
00867 
00868     case SEF_SUBTREE_KIND:
00869       this->d.sub.folded = true;
00870       this->d.sub.page->FoldAll();
00871       break;
00872 
00873     default: NOT_REACHED();
00874   }
00875 }
00876 
00878 void SettingEntry::UnFoldAll()
00879 {
00880   if (this->IsFiltered()) return;
00881   switch (this->flags & SEF_KIND_MASK) {
00882     case SEF_SETTING_KIND:
00883       break;
00884 
00885     case SEF_SUBTREE_KIND:
00886       this->d.sub.folded = false;
00887       this->d.sub.page->UnFoldAll();
00888       break;
00889 
00890     default: NOT_REACHED();
00891   }
00892 }
00893 
00899 void SettingEntry::GetFoldingState(bool &all_folded, bool &all_unfolded) const
00900 {
00901   if (this->IsFiltered()) return;
00902   switch (this->flags & SEF_KIND_MASK) {
00903     case SEF_SETTING_KIND:
00904       break;
00905 
00906     case SEF_SUBTREE_KIND:
00907       if (this->d.sub.folded) {
00908         all_unfolded = false;
00909       } else {
00910         all_folded = false;
00911       }
00912       this->d.sub.page->GetFoldingState(all_folded, all_unfolded);
00913       break;
00914 
00915     default: NOT_REACHED();
00916   }
00917 }
00918 
00925 bool SettingEntry::IsVisible(const SettingEntry *item) const
00926 {
00927   if (this->IsFiltered()) return false;
00928   if (this == item) return true;
00929 
00930   switch (this->flags & SEF_KIND_MASK) {
00931     case SEF_SETTING_KIND:
00932       return false;
00933 
00934     case SEF_SUBTREE_KIND:
00935       return !this->d.sub.folded && this->d.sub.page->IsVisible(item);
00936 
00937     default: NOT_REACHED();
00938   }
00939 }
00940 
00946 void SettingEntry::SetButtons(byte new_val)
00947 {
00948   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
00949   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
00950 }
00951 
00953 uint SettingEntry::Length() const
00954 {
00955   if (this->IsFiltered()) return 0;
00956   switch (this->flags & SEF_KIND_MASK) {
00957     case SEF_SETTING_KIND:
00958       return 1;
00959     case SEF_SUBTREE_KIND:
00960       if (this->d.sub.folded) return 1; // Only displaying the title
00961 
00962       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
00963     default: NOT_REACHED();
00964   }
00965 }
00966 
00973 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
00974 {
00975   if (this->IsFiltered()) return NULL;
00976   if (row_num == *cur_row) return this;
00977 
00978   switch (this->flags & SEF_KIND_MASK) {
00979     case SEF_SETTING_KIND:
00980       (*cur_row)++;
00981       break;
00982     case SEF_SUBTREE_KIND:
00983       (*cur_row)++; // add one for row containing the title
00984       if (this->d.sub.folded) {
00985         break;
00986       }
00987 
00988       /* sub-page is visible => search it too */
00989       return this->d.sub.page->FindEntry(row_num, cur_row);
00990     default: NOT_REACHED();
00991   }
00992   return NULL;
00993 }
00994 
01000 uint SettingEntry::GetMaxHelpHeight(int maxw)
01001 {
01002   switch (this->flags & SEF_KIND_MASK) {
01003     case SEF_SETTING_KIND: return GetStringHeight(this->GetHelpText(), maxw);
01004     case SEF_SUBTREE_KIND: return this->d.sub.page->GetMaxHelpHeight(maxw);
01005     default:               NOT_REACHED();
01006   }
01007 }
01008 
01013 bool SettingEntry::IsFiltered() const
01014 {
01015   return (this->flags & SEF_FILTERED) != 0;
01016 }
01017 
01023 bool SettingEntry::IsVisibleByRestrictionMode(RestrictionMode mode) const
01024 {
01025   /* There shall not be any restriction, i.e. all settings shall be visible. */
01026   if (mode == RM_ALL) return true;
01027 
01028   GameSettings *settings_ptr = &GetGameSettings();
01029   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01030   const SettingDesc *sd = this->d.entry.setting;
01031 
01032   if (mode == RM_BASIC) return (this->d.entry.setting->desc.cat & SC_BASIC_LIST) != 0;
01033   if (mode == RM_ADVANCED) return (this->d.entry.setting->desc.cat & SC_ADVANCED_LIST) != 0;
01034 
01035   /* Read the current value. */
01036   const void *var = ResolveVariableAddress(settings_ptr, sd);
01037   int64 current_value = ReadValue(var, sd->save.conv);
01038 
01039   int64 filter_value;
01040 
01041   if (mode == RM_CHANGED_AGAINST_DEFAULT) {
01042     /* This entry shall only be visible, if the value deviates from its default value. */
01043 
01044     /* Read the default value. */
01045     filter_value = ReadValue(&sd->desc.def, sd->save.conv);
01046   } else {
01047     assert(mode == RM_CHANGED_AGAINST_NEW);
01048     /* This entry shall only be visible, if the value deviates from
01049      * its value is used when starting a new game. */
01050 
01051     /* Make sure we're not comparing the new game settings against itself. */
01052     assert(settings_ptr != &_settings_newgame);
01053 
01054     /* Read the new game's value. */
01055     var = ResolveVariableAddress(&_settings_newgame, sd);
01056     filter_value = ReadValue(var, sd->save.conv);
01057   }
01058 
01059   return current_value != filter_value;
01060 }
01061 
01068 bool SettingEntry::UpdateFilterState(SettingFilter &filter, bool force_visible)
01069 {
01070   CLRBITS(this->flags, SEF_FILTERED);
01071 
01072   bool visible = true;
01073   switch (this->flags & SEF_KIND_MASK) {
01074     case SEF_SETTING_KIND: {
01075       const SettingDesc *sd = this->d.entry.setting;
01076       if (!force_visible && !filter.string.IsEmpty()) {
01077         /* Process the search text filter for this item. */
01078         filter.string.ResetState();
01079 
01080         const SettingDescBase *sdb = &sd->desc;
01081 
01082         SetDParam(0, STR_EMPTY);
01083         filter.string.AddLine(sdb->str);
01084         filter.string.AddLine(this->GetHelpText());
01085 
01086         visible = filter.string.GetState();
01087       }
01088       if (filter.type != ST_ALL) visible = visible && sd->GetType() == filter.type;
01089       visible = visible && this->IsVisibleByRestrictionMode(filter.mode);
01090       break;
01091     }
01092     case SEF_SUBTREE_KIND: {
01093       if (!force_visible && !filter.string.IsEmpty()) {
01094         filter.string.ResetState();
01095         filter.string.AddLine(this->d.sub.title);
01096         force_visible = filter.string.GetState();
01097       }
01098       visible = this->d.sub.page->UpdateFilterState(filter, force_visible);
01099       break;
01100     }
01101     default: NOT_REACHED();
01102   }
01103 
01104   if (!visible) SETBITS(this->flags, SEF_FILTERED);
01105   return visible;
01106 }
01107 
01108 
01109 
01137 uint SettingEntry::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, uint cur_row, uint parent_last, SettingEntry *selected)
01138 {
01139   if (this->IsFiltered()) return cur_row;
01140   if (cur_row >= max_row) return cur_row;
01141 
01142   bool rtl = _current_text_dir == TD_RTL;
01143   int offset = rtl ? -4 : 4;
01144   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
01145 
01146   int x = rtl ? right : left;
01147   int y = base_y;
01148   if (cur_row >= first_row) {
01149     int colour = _colour_gradient[COLOUR_ORANGE][4];
01150     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
01151 
01152     /* Draw vertical for parent nesting levels */
01153     for (uint lvl = 0; lvl < this->level; lvl++) {
01154       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
01155       x += level_width;
01156     }
01157     /* draw own |- prefix */
01158     int halfway_y = y + SETTING_HEIGHT / 2;
01159     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
01160     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
01161     /* Small horizontal line from the last vertical line */
01162     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
01163     x += level_width;
01164   }
01165 
01166   switch (this->flags & SEF_KIND_MASK) {
01167     case SEF_SETTING_KIND:
01168       if (cur_row >= first_row) {
01169         this->DrawSetting(settings_ptr, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK,
01170             this == selected);
01171       }
01172       cur_row++;
01173       break;
01174     case SEF_SUBTREE_KIND:
01175       if (cur_row >= first_row) {
01176         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
01177         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
01178       }
01179       cur_row++;
01180       if (!this->d.sub.folded) {
01181         if (this->flags & SEF_LAST_FIELD) {
01182           assert(this->level < sizeof(parent_last));
01183           SetBit(parent_last, this->level); // Add own last-field state
01184         }
01185 
01186         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, selected, cur_row, parent_last);
01187       }
01188       break;
01189     default: NOT_REACHED();
01190   }
01191   return cur_row;
01192 }
01193 
01194 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
01195 {
01196   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01197     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01198       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
01199     } else {
01200       return GetVariableAddress(&_settings_client.company, &sd->save);
01201     }
01202   } else {
01203     return GetVariableAddress(settings_ptr, &sd->save);
01204   }
01205 }
01206 
01212 void SettingEntry::SetValueDParams(uint first_param, int32 value)
01213 {
01214   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01215   const SettingDescBase *sdb = &this->d.entry.setting->desc;
01216   if (sdb->cmd == SDT_BOOLX) {
01217     SetDParam(first_param++, value != 0 ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
01218   } else {
01219     if ((sdb->flags & SGF_MULTISTRING) != 0) {
01220       SetDParam(first_param++, sdb->str_val - sdb->min + value);
01221     } else if ((sdb->flags & SGF_DISPLAY_ABS) != 0) {
01222       SetDParam(first_param++, sdb->str_val + ((value >= 0) ? 1 : 0));
01223       value = abs(value);
01224     } else {
01225       SetDParam(first_param++, sdb->str_val + ((value == 0 && (sdb->flags & SGF_0ISDISABLED) != 0) ? 1 : 0));
01226     }
01227     SetDParam(first_param++, value);
01228   }
01229 }
01230 
01240 void SettingEntry::DrawSetting(GameSettings *settings_ptr, int left, int right, int y, int state, bool highlight)
01241 {
01242   const SettingDesc *sd = this->d.entry.setting;
01243   const SettingDescBase *sdb = &sd->desc;
01244   const void *var = ResolveVariableAddress(settings_ptr, sd);
01245 
01246   bool rtl = _current_text_dir == TD_RTL;
01247   uint buttons_left = rtl ? right + 1 - SETTING_BUTTON_WIDTH : left;
01248   uint text_left  = left + (rtl ? 0 : SETTING_BUTTON_WIDTH + 5);
01249   uint text_right = right - (rtl ? SETTING_BUTTON_WIDTH + 5 : 0);
01250   uint button_y = y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
01251 
01252   /* We do not allow changes of some items when we are a client in a networkgame */
01253   bool editable = sd->IsEditable();
01254 
01255   SetDParam(0, highlight ? STR_ORANGE_STRING1_WHITE : STR_ORANGE_STRING1_LTBLUE);
01256   int32 value = (int32)ReadValue(var, sd->save.conv);
01257   if (sdb->cmd == SDT_BOOLX) {
01258     /* Draw checkbox for boolean-value either on/off */
01259     DrawBoolButton(buttons_left, button_y, value != 0, editable);
01260   } else if ((sdb->flags & SGF_MULTISTRING) != 0) {
01261     /* Draw [v] button for settings of an enum-type */
01262     DrawDropDownButton(buttons_left, button_y, COLOUR_YELLOW, state != 0, editable);
01263   } else {
01264     /* Draw [<][>] boxes for settings of an integer-type */
01265     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state,
01266         editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
01267   }
01268   this->SetValueDParams(1, value);
01269   DrawString(text_left, text_right, y, sdb->str, highlight ? TC_WHITE : TC_LIGHT_BLUE);
01270 }
01271 
01272 
01273 /* == SettingsPage methods == */
01274 
01279 void SettingsPage::Init(byte level)
01280 {
01281   for (uint field = 0; field < this->num; field++) {
01282     this->entries[field].Init(level);
01283   }
01284 }
01285 
01287 void SettingsPage::FoldAll()
01288 {
01289   for (uint field = 0; field < this->num; field++) {
01290     this->entries[field].FoldAll();
01291   }
01292 }
01293 
01295 void SettingsPage::UnFoldAll()
01296 {
01297   for (uint field = 0; field < this->num; field++) {
01298     this->entries[field].UnFoldAll();
01299   }
01300 }
01301 
01307 void SettingsPage::GetFoldingState(bool &all_folded, bool &all_unfolded) const
01308 {
01309   for (uint field = 0; field < this->num; field++) {
01310     this->entries[field].GetFoldingState(all_folded, all_unfolded);
01311   }
01312 }
01313 
01320 bool SettingsPage::UpdateFilterState(SettingFilter &filter, bool force_visible)
01321 {
01322   bool visible = false;
01323   bool first_visible = true;
01324   for (int field = this->num - 1; field >= 0; field--) {
01325     visible |= this->entries[field].UpdateFilterState(filter, force_visible);
01326     this->entries[field].SetLastField(first_visible);
01327     if (visible && first_visible) first_visible = false;
01328   }
01329   return visible;
01330 }
01331 
01332 
01339 bool SettingsPage::IsVisible(const SettingEntry *item) const
01340 {
01341   for (uint field = 0; field < this->num; field++) {
01342     if (this->entries[field].IsVisible(item)) return true;
01343   }
01344   return false;
01345 }
01346 
01348 uint SettingsPage::Length() const
01349 {
01350   uint length = 0;
01351   for (uint field = 0; field < this->num; field++) {
01352     length += this->entries[field].Length();
01353   }
01354   return length;
01355 }
01356 
01363 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
01364 {
01365   SettingEntry *pe = NULL;
01366 
01367   for (uint field = 0; field < this->num; field++) {
01368     pe = this->entries[field].FindEntry(row_num, cur_row);
01369     if (pe != NULL) {
01370       break;
01371     }
01372   }
01373   return pe;
01374 }
01375 
01381 uint SettingsPage::GetMaxHelpHeight(int maxw)
01382 {
01383   uint biggest = 0;
01384   for (uint field = 0; field < this->num; field++) {
01385     biggest = max(biggest, this->entries[field].GetMaxHelpHeight(maxw));
01386   }
01387   return biggest;
01388 }
01389 
01408 uint SettingsPage::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, SettingEntry *selected, uint cur_row, uint parent_last) const
01409 {
01410   if (cur_row >= max_row) return cur_row;
01411 
01412   for (uint i = 0; i < this->num; i++) {
01413     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last, selected);
01414     if (cur_row >= max_row) {
01415       break;
01416     }
01417   }
01418   return cur_row;
01419 }
01420 
01421 
01422 static SettingEntry _settings_ui_display[] = {
01423   SettingEntry("gui.date_format_in_default_names"),
01424   SettingEntry("gui.population_in_label"),
01425   SettingEntry("gui.measure_tooltip"),
01426   SettingEntry("gui.loading_indicators"),
01427   SettingEntry("gui.liveries"),
01428   SettingEntry("gui.show_track_reservation"),
01429   SettingEntry("gui.expenses_layout"),
01430   SettingEntry("gui.smallmap_land_colour"),
01431   SettingEntry("gui.zoom_min"),
01432   SettingEntry("gui.zoom_max"),
01433   SettingEntry("gui.graph_line_thickness"),
01434 };
01436 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
01437 
01438 static SettingEntry _settings_ui_interaction[] = {
01439   SettingEntry("gui.window_snap_radius"),
01440   SettingEntry("gui.window_soft_limit"),
01441   SettingEntry("gui.link_terraform_toolbar"),
01442   SettingEntry("gui.prefer_teamchat"),
01443   SettingEntry("gui.auto_scrolling"),
01444   SettingEntry("gui.reverse_scroll"),
01445   SettingEntry("gui.smooth_scroll"),
01446   SettingEntry("gui.left_mouse_btn_scrolling"),
01447   /* While the horizontal scrollwheel scrolling is written as general code, only
01448    *  the cocoa (OSX) driver generates input for it.
01449    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
01450   SettingEntry("gui.scrollwheel_scrolling"),
01451   SettingEntry("gui.scrollwheel_multiplier"),
01452   SettingEntry("gui.osk_activation"),
01453 #ifdef __APPLE__
01454   /* We might need to emulate a right mouse button on mac */
01455   SettingEntry("gui.right_mouse_btn_emulation"),
01456 #endif
01457 };
01459 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
01460 
01461 static SettingEntry _settings_ui_sound[] = {
01462   SettingEntry("sound.click_beep"),
01463   SettingEntry("sound.confirm"),
01464   SettingEntry("sound.news_ticker"),
01465   SettingEntry("sound.news_full"),
01466   SettingEntry("sound.new_year"),
01467   SettingEntry("sound.disaster"),
01468   SettingEntry("sound.vehicle"),
01469   SettingEntry("sound.ambient"),
01470 };
01472 static SettingsPage _settings_ui_sound_page = {_settings_ui_sound, lengthof(_settings_ui_sound)};
01473 
01474 static SettingEntry _settings_ui_news[] = {
01475   SettingEntry("news_display.arrival_player"),
01476   SettingEntry("news_display.arrival_other"),
01477   SettingEntry("news_display.accident"),
01478   SettingEntry("news_display.company_info"),
01479   SettingEntry("news_display.open"),
01480   SettingEntry("news_display.close"),
01481   SettingEntry("news_display.economy"),
01482   SettingEntry("news_display.production_player"),
01483   SettingEntry("news_display.production_other"),
01484   SettingEntry("news_display.production_nobody"),
01485   SettingEntry("news_display.advice"),
01486   SettingEntry("news_display.new_vehicles"),
01487   SettingEntry("news_display.acceptance"),
01488   SettingEntry("news_display.subsidies"),
01489   SettingEntry("news_display.general"),
01490   SettingEntry("gui.coloured_news_year"),
01491 };
01493 static SettingsPage _settings_ui_news_page = {_settings_ui_news, lengthof(_settings_ui_news)};
01494 
01495 static SettingEntry _settings_ui[] = {
01496   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
01497   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
01498   SettingEntry(&_settings_ui_sound_page, STR_CONFIG_SETTING_SOUND),
01499   SettingEntry(&_settings_ui_news_page, STR_CONFIG_SETTING_NEWS),
01500   SettingEntry("gui.show_finances"),
01501   SettingEntry("gui.errmsg_duration"),
01502   SettingEntry("gui.hover_delay"),
01503   SettingEntry("gui.toolbar_pos"),
01504   SettingEntry("gui.statusbar_pos"),
01505   SettingEntry("gui.newgrf_default_palette"),
01506   SettingEntry("gui.pause_on_newgame"),
01507   SettingEntry("gui.advanced_vehicle_list"),
01508   SettingEntry("gui.timetable_in_ticks"),
01509   SettingEntry("gui.timetable_arrival_departure"),
01510   SettingEntry("gui.quick_goto"),
01511   SettingEntry("gui.default_rail_type"),
01512   SettingEntry("gui.disable_unsuitable_building"),
01513   SettingEntry("gui.persistent_buildingtools"),
01514 };
01516 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
01517 
01518 static SettingEntry _settings_construction_signals[] = {
01519   SettingEntry("construction.train_signal_side"),
01520   SettingEntry("gui.enable_signal_gui"),
01521   SettingEntry("gui.drag_signals_fixed_distance"),
01522   SettingEntry("gui.semaphore_build_before"),
01523   SettingEntry("gui.default_signal_type"),
01524   SettingEntry("gui.cycle_signal_types"),
01525 };
01527 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
01528 
01529 static SettingEntry _settings_construction[] = {
01530   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
01531   SettingEntry("construction.build_on_slopes"),
01532   SettingEntry("construction.autoslope"),
01533   SettingEntry("construction.extra_dynamite"),
01534   SettingEntry("construction.max_bridge_length"),
01535   SettingEntry("construction.max_tunnel_length"),
01536   SettingEntry("station.never_expire_airports"),
01537   SettingEntry("construction.freeform_edges"),
01538   SettingEntry("construction.extra_tree_placement"),
01539   SettingEntry("construction.command_pause_level"),
01540 };
01542 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
01543 
01544 static SettingEntry _settings_stations_cargo[] = {
01545   SettingEntry("order.improved_load"),
01546   SettingEntry("order.gradual_loading"),
01547   SettingEntry("order.selectgoods"),
01548 };
01550 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
01551 
01552 static SettingEntry _settings_stations[] = {
01553   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
01554   SettingEntry("station.adjacent_stations"),
01555   SettingEntry("station.distant_join_stations"),
01556   SettingEntry("station.station_spread"),
01557   SettingEntry("economy.station_noise_level"),
01558   SettingEntry("station.modified_catchment"),
01559   SettingEntry("construction.road_stop_on_town_road"),
01560   SettingEntry("construction.road_stop_on_competitor_road"),
01561 };
01563 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
01564 
01565 static SettingEntry _settings_economy_towns[] = {
01566   SettingEntry("difficulty.town_council_tolerance"),
01567   SettingEntry("economy.bribe"),
01568   SettingEntry("economy.exclusive_rights"),
01569   SettingEntry("economy.fund_roads"),
01570   SettingEntry("economy.fund_buildings"),
01571   SettingEntry("economy.town_layout"),
01572   SettingEntry("economy.allow_town_roads"),
01573   SettingEntry("economy.allow_town_level_crossings"),
01574   SettingEntry("economy.found_town"),
01575   SettingEntry("economy.mod_road_rebuild"),
01576   SettingEntry("economy.town_growth_rate"),
01577   SettingEntry("economy.larger_towns"),
01578   SettingEntry("economy.initial_city_size"),
01579 };
01581 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
01582 
01583 static SettingEntry _settings_economy_industries[] = {
01584   SettingEntry("construction.raw_industry_construction"),
01585   SettingEntry("construction.industry_platform"),
01586   SettingEntry("economy.multiple_industry_per_town"),
01587   SettingEntry("game_creation.oil_refinery_limit"),
01588 };
01590 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
01591 
01592 
01593 static SettingEntry _settings_economy[] = {
01594   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
01595   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
01596   SettingEntry("economy.inflation"),
01597   SettingEntry("difficulty.initial_interest"),
01598   SettingEntry("difficulty.max_loan"),
01599   SettingEntry("difficulty.subsidy_multiplier"),
01600   SettingEntry("difficulty.economy"),
01601   SettingEntry("economy.smooth_economy"),
01602   SettingEntry("economy.feeder_payment_share"),
01603   SettingEntry("economy.infrastructure_maintenance"),
01604   SettingEntry("difficulty.vehicle_costs"),
01605   SettingEntry("difficulty.construction_cost"),
01606   SettingEntry("difficulty.disasters"),
01607 };
01609 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
01610 
01611 static SettingEntry _settings_ai_npc[] = {
01612   SettingEntry("script.settings_profile"),
01613   SettingEntry("script.script_max_opcode_till_suspend"),
01614   SettingEntry("difficulty.competitor_speed"),
01615   SettingEntry("ai.ai_in_multiplayer"),
01616   SettingEntry("ai.ai_disable_veh_train"),
01617   SettingEntry("ai.ai_disable_veh_roadveh"),
01618   SettingEntry("ai.ai_disable_veh_aircraft"),
01619   SettingEntry("ai.ai_disable_veh_ship"),
01620 };
01622 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
01623 
01624 static SettingEntry _settings_ai[] = {
01625   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
01626   SettingEntry("economy.give_money"),
01627   SettingEntry("economy.allow_shares"),
01628 };
01630 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
01631 
01632 static SettingEntry _settings_vehicles_routing[] = {
01633   SettingEntry("pf.pathfinder_for_trains"),
01634   SettingEntry("pf.forbid_90_deg"),
01635   SettingEntry("pf.pathfinder_for_roadvehs"),
01636   SettingEntry("pf.roadveh_queue"),
01637   SettingEntry("pf.pathfinder_for_ships"),
01638 };
01640 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
01641 
01642 static SettingEntry _settings_vehicles_autorenew[] = {
01643   SettingEntry("company.engine_renew"),
01644   SettingEntry("company.engine_renew_months"),
01645   SettingEntry("company.engine_renew_money"),
01646 };
01648 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
01649 
01650 static SettingEntry _settings_vehicles_servicing[] = {
01651   SettingEntry("vehicle.servint_ispercent"),
01652   SettingEntry("vehicle.servint_trains"),
01653   SettingEntry("vehicle.servint_roadveh"),
01654   SettingEntry("vehicle.servint_ships"),
01655   SettingEntry("vehicle.servint_aircraft"),
01656   SettingEntry("difficulty.vehicle_breakdowns"),
01657   SettingEntry("order.no_servicing_if_no_breakdowns"),
01658   SettingEntry("order.serviceathelipad"),
01659 };
01661 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
01662 
01663 static SettingEntry _settings_vehicles_trains[] = {
01664   SettingEntry("difficulty.line_reverse_mode"),
01665   SettingEntry("pf.reverse_at_signals"),
01666   SettingEntry("vehicle.train_acceleration_model"),
01667   SettingEntry("vehicle.train_slope_steepness"),
01668   SettingEntry("vehicle.max_train_length"),
01669   SettingEntry("vehicle.wagon_speed_limits"),
01670   SettingEntry("vehicle.disable_elrails"),
01671   SettingEntry("vehicle.freight_trains"),
01672   SettingEntry("gui.stop_location"),
01673 };
01675 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
01676 
01677 static SettingEntry _settings_vehicles[] = {
01678   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
01679   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
01680   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
01681   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
01682   SettingEntry("gui.new_nonstop"),
01683   SettingEntry("gui.order_review_system"),
01684   SettingEntry("gui.vehicle_income_warn"),
01685   SettingEntry("gui.lost_vehicle_warn"),
01686   SettingEntry("vehicle.never_expire_vehicles"),
01687   SettingEntry("vehicle.max_trains"),
01688   SettingEntry("vehicle.max_roadveh"),
01689   SettingEntry("vehicle.max_aircraft"),
01690   SettingEntry("vehicle.max_ships"),
01691   SettingEntry("vehicle.plane_speed"),
01692   SettingEntry("vehicle.plane_crashes"),
01693   SettingEntry("vehicle.dynamic_engines"),
01694   SettingEntry("vehicle.roadveh_acceleration_model"),
01695   SettingEntry("vehicle.roadveh_slope_steepness"),
01696   SettingEntry("vehicle.smoke_amount"),
01697 };
01699 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
01700 
01701 static SettingEntry _settings_main[] = {
01702   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
01703   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
01704   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
01705   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
01706   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
01707   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
01708 };
01709 
01711 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
01712 
01713 static const StringID _game_settings_restrict_dropdown[] = {
01714   STR_CONFIG_SETTING_RESTRICT_BASIC,                            // RM_BASIC
01715   STR_CONFIG_SETTING_RESTRICT_ADVANCED,                         // RM_ADVANCED
01716   STR_CONFIG_SETTING_RESTRICT_ALL,                              // RM_ALL
01717   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_DEFAULT,          // RM_CHANGED_AGAINST_DEFAULT
01718   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_NEW,              // RM_CHANGED_AGAINST_NEW
01719 };
01720 assert_compile(lengthof(_game_settings_restrict_dropdown) == RM_END);
01721 
01722 struct GameSettingsWindow : Window {
01723   static const int SETTINGTREE_LEFT_OFFSET   = 5; 
01724   static const int SETTINGTREE_RIGHT_OFFSET  = 5; 
01725   static const int SETTINGTREE_TOP_OFFSET    = 5; 
01726   static const int SETTINGTREE_BOTTOM_OFFSET = 5; 
01727 
01728   static GameSettings *settings_ptr; 
01729 
01730   SettingEntry *valuewindow_entry;   
01731   SettingEntry *clicked_entry;       
01732   SettingEntry *last_clicked;        
01733   SettingEntry *valuedropdown_entry; 
01734   bool closing_dropdown;             
01735 
01736   SettingFilter filter;              
01737   QueryString filter_editbox;        
01738   bool manually_changed_folding;     
01739 
01740   Scrollbar *vscroll;
01741 
01742   GameSettingsWindow(const WindowDesc *desc) : filter_editbox(50)
01743   {
01744     static bool first_time = true;
01745 
01746     filter.mode = (RestrictionMode)_settings_client.gui.settings_restriction_mode;
01747     filter.type = ST_ALL;
01748     settings_ptr = &GetGameSettings();
01749 
01750     /* Build up the dynamic settings-array only once per OpenTTD session */
01751     if (first_time) {
01752       _settings_main_page.Init();
01753       first_time = false;
01754     } else {
01755       _settings_main_page.FoldAll(); // Close all sub-pages
01756     }
01757 
01758     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
01759     this->clicked_entry = NULL; // No numeric setting buttons are depressed
01760     this->last_clicked = NULL;
01761     this->valuedropdown_entry = NULL;
01762     this->closing_dropdown = false;
01763     this->manually_changed_folding = false;
01764 
01765     this->CreateNestedTree(desc);
01766     this->vscroll = this->GetScrollbar(WID_GS_SCROLLBAR);
01767     this->FinishInitNested(desc, WN_GAME_OPTIONS_GAME_SETTINGS);
01768 
01769     this->querystrings[WID_GS_FILTER] = &this->filter_editbox;
01770     this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
01771     this->SetFocusedWidget(WID_GS_FILTER);
01772 
01773     this->InvalidateData();
01774   }
01775 
01776   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01777   {
01778     switch (widget) {
01779       case WID_GS_OPTIONSPANEL:
01780         resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
01781         resize->width  = 1;
01782 
01783         size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
01784         break;
01785 
01786       case WID_GS_HELP_TEXT: {
01787         static const StringID setting_types[] = {
01788           STR_CONFIG_SETTING_TYPE_CLIENT,
01789           STR_CONFIG_SETTING_TYPE_COMPANY_MENU, STR_CONFIG_SETTING_TYPE_COMPANY_INGAME,
01790           STR_CONFIG_SETTING_TYPE_GAME_MENU, STR_CONFIG_SETTING_TYPE_GAME_INGAME,
01791         };
01792         for (uint i = 0; i < lengthof(setting_types); i++) {
01793           SetDParam(0, setting_types[i]);
01794           size->width = max(size->width, GetStringBoundingBox(STR_CONFIG_SETTING_TYPE).width);
01795         }
01796         size->height = 2 * FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL +
01797             max(size->height, _settings_main_page.GetMaxHelpHeight(size->width));
01798         break;
01799       }
01800 
01801       default:
01802         break;
01803     }
01804   }
01805 
01806   virtual void OnPaint()
01807   {
01808     if (this->closing_dropdown) {
01809       this->closing_dropdown = false;
01810       assert(this->valuedropdown_entry != NULL);
01811       this->valuedropdown_entry->SetButtons(0);
01812       this->valuedropdown_entry = NULL;
01813     }
01814     this->DrawWidgets();
01815   }
01816 
01817   virtual void SetStringParameters(int widget) const
01818   {
01819     switch (widget) {
01820       case WID_GS_RESTRICT_DROPDOWN:
01821         SetDParam(0, _game_settings_restrict_dropdown[this->filter.mode]);
01822         break;
01823 
01824       case WID_GS_TYPE_DROPDOWN:
01825         switch (this->filter.type) {
01826           case ST_GAME:    SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_INGAME); break;
01827           case ST_COMPANY: SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_INGAME); break;
01828           case ST_CLIENT:  SetDParam(0, STR_CONFIG_SETTING_TYPE_DROPDOWN_CLIENT); break;
01829           default:         SetDParam(0, STR_CONFIG_SETTING_TYPE_DROPDOWN_ALL); break;
01830         }
01831         break;
01832     }
01833   }
01834 
01835   DropDownList *BuildDropDownList(int widget) const
01836   {
01837     DropDownList *list = NULL;
01838     switch (widget) {
01839       case WID_GS_RESTRICT_DROPDOWN:
01840         list = new DropDownList();
01841 
01842         for (int mode = 0; mode != RM_END; mode++) {
01843           /* If we are in adv. settings screen for the new game's settings,
01844            * we don't want to allow comparing with new game's settings. */
01845           bool disabled = mode == RM_CHANGED_AGAINST_NEW && settings_ptr == &_settings_newgame;
01846 
01847           list->push_back(new DropDownListStringItem(_game_settings_restrict_dropdown[mode], mode, disabled));
01848         }
01849         break;
01850 
01851       case WID_GS_TYPE_DROPDOWN:
01852         list = new DropDownList();
01853         list->push_back(new DropDownListStringItem(STR_CONFIG_SETTING_TYPE_DROPDOWN_ALL, ST_ALL, false));
01854         list->push_back(new DropDownListStringItem(_game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_INGAME, ST_GAME, false));
01855         list->push_back(new DropDownListStringItem(_game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_INGAME, ST_COMPANY, false));
01856         list->push_back(new DropDownListStringItem(STR_CONFIG_SETTING_TYPE_DROPDOWN_CLIENT, ST_CLIENT, false));
01857         break;
01858     }
01859     return list;
01860   }
01861 
01862   virtual void DrawWidget(const Rect &r, int widget) const
01863   {
01864     switch (widget) {
01865       case WID_GS_OPTIONSPANEL:
01866         _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
01867             this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->last_clicked);
01868         break;
01869 
01870       case WID_GS_HELP_TEXT:
01871         if (this->last_clicked != NULL) {
01872           const SettingDesc *sd = this->last_clicked->d.entry.setting;
01873 
01874           int y = r.top;
01875           switch (sd->GetType()) {
01876             case ST_COMPANY: SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_COMPANY_INGAME); break;
01877             case ST_CLIENT:  SetDParam(0, STR_CONFIG_SETTING_TYPE_CLIENT); break;
01878             case ST_GAME:    SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_GAME_MENU : STR_CONFIG_SETTING_TYPE_GAME_INGAME); break;
01879             default: NOT_REACHED();
01880           }
01881           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_TYPE);
01882           y += FONT_HEIGHT_NORMAL;
01883 
01884           int32 default_value = ReadValue(&sd->desc.def, sd->save.conv);
01885           this->last_clicked->SetValueDParams(0, default_value);
01886           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_DEFAULT_VALUE);
01887           y += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
01888 
01889           DrawStringMultiLine(r.left, r.right, y, r.bottom, this->last_clicked->GetHelpText(), TC_WHITE);
01890         }
01891         break;
01892 
01893       default:
01894         break;
01895     }
01896   }
01897 
01902   void SetDisplayedHelpText(SettingEntry *pe)
01903   {
01904     if (this->last_clicked != pe) this->SetDirty();
01905     this->last_clicked = pe;
01906   }
01907 
01908   virtual void OnClick(Point pt, int widget, int click_count)
01909   {
01910     switch (widget) {
01911       case WID_GS_EXPAND_ALL:
01912         this->manually_changed_folding = true;
01913         _settings_main_page.UnFoldAll();
01914         this->InvalidateData();
01915         break;
01916 
01917       case WID_GS_COLLAPSE_ALL:
01918         this->manually_changed_folding = true;
01919         _settings_main_page.FoldAll();
01920         this->InvalidateData();
01921         break;
01922 
01923       case WID_GS_RESTRICT_DROPDOWN: {
01924         DropDownList *list = this->BuildDropDownList(widget);
01925         if (list != NULL) {
01926           ShowDropDownList(this, list, this->filter.mode, widget);
01927         }
01928         break;
01929       }
01930 
01931       case WID_GS_TYPE_DROPDOWN: {
01932         DropDownList *list = this->BuildDropDownList(widget);
01933         if (list != NULL) {
01934           ShowDropDownList(this, list, this->filter.type, widget);
01935         }
01936         break;
01937       }
01938     }
01939 
01940     if (widget != WID_GS_OPTIONSPANEL) return;
01941 
01942     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET);
01943     if (btn == INT_MAX) return;
01944 
01945     uint cur_row = 0;
01946     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
01947 
01948     if (pe == NULL) return;  // Clicked below the last setting of the page
01949 
01950     int x = (_current_text_dir == TD_RTL ? this->width - 1 - pt.x : pt.x) - SETTINGTREE_LEFT_OFFSET - (pe->level + 1) * LEVEL_WIDTH;  // Shift x coordinate
01951     if (x < 0) return;  // Clicked left of the entry
01952 
01953     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
01954       this->SetDisplayedHelpText(NULL);
01955       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
01956 
01957       this->manually_changed_folding = true;
01958 
01959       this->InvalidateData();
01960       return;
01961     }
01962 
01963     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01964     const SettingDesc *sd = pe->d.entry.setting;
01965 
01966     /* return if action is only active in network, or only settable by server */
01967     if (!sd->IsEditable()) {
01968       this->SetDisplayedHelpText(pe);
01969       return;
01970     }
01971 
01972     const void *var = ResolveVariableAddress(settings_ptr, sd);
01973     int32 value = (int32)ReadValue(var, sd->save.conv);
01974 
01975     /* clicked on the icon on the left side. Either scroller, bool on/off or dropdown */
01976     if (x < SETTING_BUTTON_WIDTH && (sd->desc.flags & SGF_MULTISTRING)) {
01977       const SettingDescBase *sdb = &sd->desc;
01978       this->SetDisplayedHelpText(pe);
01979 
01980       if (this->valuedropdown_entry == pe) {
01981         /* unclick the dropdown */
01982         HideDropDownMenu(this);
01983         this->closing_dropdown = false;
01984         this->valuedropdown_entry->SetButtons(0);
01985         this->valuedropdown_entry = NULL;
01986       } else {
01987         if (this->valuedropdown_entry != NULL) this->valuedropdown_entry->SetButtons(0);
01988         this->closing_dropdown = false;
01989 
01990         const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_GS_OPTIONSPANEL);
01991         int rel_y = (pt.y - (int)wid->pos_y - SETTINGTREE_TOP_OFFSET) % wid->resize_y;
01992 
01993         Rect wi_rect;
01994         wi_rect.left = pt.x - (_current_text_dir == TD_RTL ? SETTING_BUTTON_WIDTH - 1 - x : x);
01995         wi_rect.right = wi_rect.left + SETTING_BUTTON_WIDTH - 1;
01996         wi_rect.top = pt.y - rel_y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
01997         wi_rect.bottom = wi_rect.top + SETTING_BUTTON_HEIGHT - 1;
01998 
01999         /* For dropdowns we also have to check the y position thoroughly, the mouse may not above the just opening dropdown */
02000         if (pt.y >= wi_rect.top && pt.y <= wi_rect.bottom) {
02001           this->valuedropdown_entry = pe;
02002           this->valuedropdown_entry->SetButtons(SEF_LEFT_DEPRESSED);
02003 
02004           DropDownList *list = new DropDownList();
02005           for (int i = sdb->min; i <= (int)sdb->max; i++) {
02006             list->push_back(new DropDownListStringItem(sdb->str_val + i - sdb->min, i, false));
02007           }
02008 
02009           ShowDropDownListAt(this, list, value, -1, wi_rect, COLOUR_ORANGE, true);
02010         }
02011       }
02012       this->SetDirty();
02013     } else if (x < SETTING_BUTTON_WIDTH) {
02014       this->SetDisplayedHelpText(pe);
02015       const SettingDescBase *sdb = &sd->desc;
02016       int32 oldvalue = value;
02017 
02018       switch (sdb->cmd) {
02019         case SDT_BOOLX: value ^= 1; break;
02020         case SDT_ONEOFMANY:
02021         case SDT_NUMX: {
02022           /* Add a dynamic step-size to the scroller. In a maximum of
02023            * 50-steps you should be able to get from min to max,
02024            * unless specified otherwise in the 'interval' variable
02025            * of the current setting. */
02026           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
02027           if (step == 0) step = 1;
02028 
02029           /* don't allow too fast scrolling */
02030           if ((this->flags & WF_TIMEOUT) && this->timeout_timer > 1) {
02031             _left_button_clicked = false;
02032             return;
02033           }
02034 
02035           /* Increase or decrease the value and clamp it to extremes */
02036           if (x >= SETTING_BUTTON_WIDTH / 2) {
02037             value += step;
02038             if (sdb->min < 0) {
02039               assert((int32)sdb->max >= 0);
02040               if (value > (int32)sdb->max) value = (int32)sdb->max;
02041             } else {
02042               if ((uint32)value > sdb->max) value = (int32)sdb->max;
02043             }
02044             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
02045           } else {
02046             value -= step;
02047             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
02048           }
02049 
02050           /* Set up scroller timeout for numeric values */
02051           if (value != oldvalue) {
02052             if (this->clicked_entry != NULL) { // Release previous buttons if any
02053               this->clicked_entry->SetButtons(0);
02054             }
02055             this->clicked_entry = pe;
02056             this->clicked_entry->SetButtons((x >= SETTING_BUTTON_WIDTH / 2) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
02057             this->SetTimeout();
02058             _left_button_clicked = false;
02059           }
02060           break;
02061         }
02062 
02063         default: NOT_REACHED();
02064       }
02065 
02066       if (value != oldvalue) {
02067         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02068           SetCompanySetting(pe->d.entry.index, value);
02069         } else {
02070           SetSettingValue(pe->d.entry.index, value);
02071         }
02072         this->SetDirty();
02073       }
02074     } else {
02075       /* Only open editbox if clicked for the second time, and only for types where it is sensible for. */
02076       if (this->last_clicked == pe && sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
02077         /* Show the correct currency-translated value */
02078         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
02079 
02080         this->valuewindow_entry = pe;
02081         SetDParam(0, value);
02082         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
02083       }
02084       this->SetDisplayedHelpText(pe);
02085     }
02086   }
02087 
02088   virtual void OnTimeout()
02089   {
02090     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
02091       this->clicked_entry->SetButtons(0);
02092       this->clicked_entry = NULL;
02093       this->SetDirty();
02094     }
02095   }
02096 
02097   virtual void OnQueryTextFinished(char *str)
02098   {
02099     /* The user pressed cancel */
02100     if (str == NULL) return;
02101 
02102     assert(this->valuewindow_entry != NULL);
02103     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
02104     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
02105 
02106     int32 value;
02107     if (!StrEmpty(str)) {
02108       value = atoi(str);
02109 
02110       /* Save the correct currency-translated value */
02111       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
02112     } else {
02113       value = (int32)(size_t)sd->desc.def;
02114     }
02115 
02116     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02117       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
02118     } else {
02119       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
02120     }
02121     this->SetDirty();
02122   }
02123 
02124   virtual void OnDropdownSelect(int widget, int index)
02125   {
02126     switch (widget) {
02127       case WID_GS_RESTRICT_DROPDOWN:
02128         this->filter.mode = (RestrictionMode)index;
02129         if (this->filter.mode == RM_CHANGED_AGAINST_DEFAULT ||
02130             this->filter.mode == RM_CHANGED_AGAINST_NEW) {
02131 
02132           if (!this->manually_changed_folding) {
02133             /* Expand all when selecting 'changes'. Update the filter state first, in case it becomes less restrictive in some cases. */
02134             _settings_main_page.UpdateFilterState(this->filter, false);
02135             _settings_main_page.UnFoldAll();
02136           }
02137         } else {
02138           /* Non-'changes' filter. Save as default. */
02139           _settings_client.gui.settings_restriction_mode = this->filter.mode;
02140         }
02141         this->InvalidateData();
02142         break;
02143 
02144       case WID_GS_TYPE_DROPDOWN:
02145         this->filter.type = (SettingType)index;
02146         this->InvalidateData();
02147         break;
02148 
02149       default:
02150         if (widget < 0) {
02151           /* Deal with drop down boxes on the panel. */
02152           assert(this->valuedropdown_entry != NULL);
02153           const SettingDesc *sd = this->valuedropdown_entry->d.entry.setting;
02154           assert(sd->desc.flags & SGF_MULTISTRING);
02155 
02156           if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02157             SetCompanySetting(this->valuedropdown_entry->d.entry.index, index);
02158           } else {
02159             SetSettingValue(this->valuedropdown_entry->d.entry.index, index);
02160           }
02161 
02162           this->SetDirty();
02163         }
02164         break;
02165     }
02166   }
02167 
02168   virtual void OnDropdownClose(Point pt, int widget, int index, bool instant_close)
02169   {
02170     if (widget >= 0) {
02171       /* Normally the default implementation of OnDropdownClose() takes care of
02172        * a few things. We want that behaviour here too, but only for
02173        * "normal" dropdown boxes. The special dropdown boxes added for every
02174        * setting that needs one can't have this call. */
02175       Window::OnDropdownClose(pt, widget, index, instant_close);
02176     } else {
02177       /* We cannot raise the dropdown button just yet. OnClick needs some hint, whether
02178        * the same dropdown button was clicked again, and then not open the dropdown again.
02179        * So, we only remember that it was closed, and process it on the next OnPaint, which is
02180        * after OnClick. */
02181       assert(this->valuedropdown_entry != NULL);
02182       this->closing_dropdown = true;
02183       this->SetDirty();
02184     }
02185   }
02186 
02187   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
02188   {
02189     if (!gui_scope) return;
02190 
02191     _settings_main_page.UpdateFilterState(this->filter, false);
02192 
02193     this->vscroll->SetCount(_settings_main_page.Length());
02194 
02195     if (this->last_clicked != NULL && !_settings_main_page.IsVisible(this->last_clicked)) {
02196       this->SetDisplayedHelpText(NULL);
02197     }
02198 
02199     bool all_folded = true;
02200     bool all_unfolded = true;
02201     _settings_main_page.GetFoldingState(all_folded, all_unfolded);
02202     this->SetWidgetDisabledState(WID_GS_EXPAND_ALL, all_unfolded);
02203     this->SetWidgetDisabledState(WID_GS_COLLAPSE_ALL, all_folded);
02204   }
02205 
02206   virtual void OnEditboxChanged(int wid)
02207   {
02208     if (wid == WID_GS_FILTER) {
02209       this->filter.string.SetFilterTerm(this->filter_editbox.text.buf);
02210       if (!this->filter.string.IsEmpty() && !this->manually_changed_folding) {
02211         /* User never expanded/collapsed single pages and entered a filter term.
02212          * Expand everything, to save weird expand clicks, */
02213         _settings_main_page.UnFoldAll();
02214       }
02215       this->InvalidateData();
02216     }
02217   }
02218 
02219   virtual void OnResize()
02220   {
02221     this->vscroll->SetCapacityFromWidget(this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
02222   }
02223 };
02224 
02225 GameSettings *GameSettingsWindow::settings_ptr = NULL;
02226 
02227 static const NWidgetPart _nested_settings_selection_widgets[] = {
02228   NWidget(NWID_HORIZONTAL),
02229     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
02230     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02231   EndContainer(),
02232   NWidget(WWT_PANEL, COLOUR_MAUVE),
02233     NWidget(NWID_HORIZONTAL), SetPadding(WD_TEXTPANEL_TOP, 0, WD_TEXTPANEL_BOTTOM, 0),
02234         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02235       NWidget(WWT_TEXT, COLOUR_MAUVE, WID_GS_RESTRICT_LABEL), SetDataTip(STR_CONFIG_SETTING_RESTRICT_LABEL, STR_NULL),
02236       NWidget(NWID_VERTICAL), SetPIP(0, WD_PAR_VSEP_NORMAL, 0),
02237         NWidget(WWT_DROPDOWN, COLOUR_MAUVE, WID_GS_RESTRICT_DROPDOWN), SetMinimalSize(100, 12), SetDataTip(STR_BLACK_STRING, STR_CONFIG_SETTING_RESTRICT_DROPDOWN_HELPTEXT), SetFill(1, 0), SetResize(1, 0),
02238         NWidget(WWT_DROPDOWN, COLOUR_MAUVE, WID_GS_TYPE_DROPDOWN), SetMinimalSize(100, 12), SetDataTip(STR_BLACK_STRING, STR_CONFIG_SETTING_TYPE_DROPDOWN_HELPTEXT), SetFill(1, 0), SetResize(1, 0),
02239       EndContainer(),
02240     EndContainer(),
02241     NWidget(NWID_HORIZONTAL), SetPadding(0, 0, WD_TEXTPANEL_BOTTOM, 0),
02242         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02243       NWidget(WWT_TEXT, COLOUR_MAUVE), SetFill(0, 1), SetDataTip(STR_CONFIG_SETTING_FILTER_TITLE, STR_NULL),
02244       NWidget(WWT_EDITBOX, COLOUR_MAUVE, WID_GS_FILTER), SetFill(1, 0), SetMinimalSize(50, 12), SetResize(1, 0),
02245           SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
02246     EndContainer(),
02247   EndContainer(),
02248   NWidget(NWID_HORIZONTAL),
02249     NWidget(WWT_PANEL, COLOUR_MAUVE, WID_GS_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(WID_GS_SCROLLBAR), EndContainer(),
02250     NWidget(NWID_VERTICAL),
02251       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_GS_SCROLLBAR),
02252     EndContainer(),
02253   EndContainer(),
02254   NWidget(WWT_PANEL, COLOUR_MAUVE), SetMinimalSize(400, 40),
02255     NWidget(WWT_EMPTY, INVALID_COLOUR, WID_GS_HELP_TEXT), SetMinimalSize(300, 25), SetFill(1, 1), SetResize(1, 0),
02256         SetPadding(WD_FRAMETEXT_TOP, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_BOTTOM, WD_FRAMETEXT_LEFT),
02257     NWidget(NWID_HORIZONTAL),
02258       NWidget(WWT_PANEL, COLOUR_MAUVE),
02259         NWidget(NWID_HORIZONTAL),
02260           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_EXPAND_ALL), SetDataTip(STR_CONFIG_SETTING_EXPAND_ALL, STR_NULL),
02261           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_COLLAPSE_ALL), SetDataTip(STR_CONFIG_SETTING_COLLAPSE_ALL, STR_NULL),
02262           NWidget(NWID_SPACER, INVALID_COLOUR), SetFill(1, 1), SetResize(1, 0),
02263         EndContainer(),
02264       EndContainer(),
02265       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
02266     EndContainer(),
02267   EndContainer(),
02268 };
02269 
02270 static const WindowDesc _settings_selection_desc(
02271   WDP_CENTER, 510, 450,
02272   WC_GAME_OPTIONS, WC_NONE,
02273   0,
02274   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
02275 );
02276 
02278 void ShowGameSettings()
02279 {
02280   DeleteWindowByClass(WC_GAME_OPTIONS);
02281   new GameSettingsWindow(&_settings_selection_desc);
02282 }
02283 
02284 
02294 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
02295 {
02296   int colour = _colour_gradient[button_colour][2];
02297 
02298   DrawFrameRect(x,                            y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
02299   DrawFrameRect(x + SETTING_BUTTON_WIDTH / 2, y, x + SETTING_BUTTON_WIDTH     - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, (state == 2) ? FR_LOWERED : FR_NONE);
02300   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
02301   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + SETTING_BUTTON_WIDTH / 2, y + WD_IMGBTN_TOP);
02302 
02303   /* Grey out the buttons that aren't clickable */
02304   bool rtl = _current_text_dir == TD_RTL;
02305   if (rtl ? !clickable_right : !clickable_left) {
02306     GfxFillRect(x                            + 1, y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02307   }
02308   if (rtl ? !clickable_left : !clickable_right) {
02309     GfxFillRect(x + SETTING_BUTTON_WIDTH / 2 + 1, y, x + SETTING_BUTTON_WIDTH     - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02310   }
02311 }
02312 
02321 void DrawDropDownButton(int x, int y, Colours button_colour, bool state, bool clickable)
02322 {
02323   static const char *DOWNARROW = "\xEE\x8A\xAA";
02324 
02325   int colour = _colour_gradient[button_colour][2];
02326 
02327   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, state ? FR_LOWERED : FR_NONE);
02328   DrawString(x + (state ? 1 : 0), x + SETTING_BUTTON_WIDTH - (state ? 0 : 1), y + (state ? 2 : 1), DOWNARROW, TC_BLACK, SA_HOR_CENTER);
02329 
02330   if (!clickable) {
02331     GfxFillRect(x +  1, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02332   }
02333 }
02334 
02342 void DrawBoolButton(int x, int y, bool state, bool clickable)
02343 {
02344   static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
02345   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, _bool_ctabs[state][clickable], state ? FR_LOWERED : FR_NONE);
02346 }
02347 
02348 struct CustomCurrencyWindow : Window {
02349   int query_widget;
02350 
02351   CustomCurrencyWindow(const WindowDesc *desc) : Window()
02352   {
02353     this->InitNested(desc);
02354 
02355     SetButtonState();
02356   }
02357 
02358   void SetButtonState()
02359   {
02360     this->SetWidgetDisabledState(WID_CC_RATE_DOWN, _custom_currency.rate == 1);
02361     this->SetWidgetDisabledState(WID_CC_RATE_UP, _custom_currency.rate == UINT16_MAX);
02362     this->SetWidgetDisabledState(WID_CC_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
02363     this->SetWidgetDisabledState(WID_CC_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
02364   }
02365 
02366   virtual void SetStringParameters(int widget) const
02367   {
02368     switch (widget) {
02369       case WID_CC_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
02370       case WID_CC_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
02371       case WID_CC_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
02372       case WID_CC_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
02373       case WID_CC_YEAR:
02374         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
02375         SetDParam(1, _custom_currency.to_euro);
02376         break;
02377 
02378       case WID_CC_PREVIEW:
02379         SetDParam(0, 10000);
02380         break;
02381     }
02382   }
02383 
02384   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
02385   {
02386     switch (widget) {
02387       /* Set the appropriate width for the edit 'buttons' */
02388       case WID_CC_SEPARATOR_EDIT:
02389       case WID_CC_PREFIX_EDIT:
02390       case WID_CC_SUFFIX_EDIT:
02391         size->width  = this->GetWidget<NWidgetBase>(WID_CC_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(WID_CC_RATE_UP)->smallest_x;
02392         break;
02393 
02394       /* Make sure the window is wide enough for the widest exchange rate */
02395       case WID_CC_RATE:
02396         SetDParam(0, 1);
02397         SetDParam(1, INT32_MAX);
02398         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
02399         break;
02400     }
02401   }
02402 
02403   virtual void OnClick(Point pt, int widget, int click_count)
02404   {
02405     int line = 0;
02406     int len = 0;
02407     StringID str = 0;
02408     CharSetFilter afilter = CS_ALPHANUMERAL;
02409 
02410     switch (widget) {
02411       case WID_CC_RATE_DOWN:
02412         if (_custom_currency.rate > 1) _custom_currency.rate--;
02413         if (_custom_currency.rate == 1) this->DisableWidget(WID_CC_RATE_DOWN);
02414         this->EnableWidget(WID_CC_RATE_UP);
02415         break;
02416 
02417       case WID_CC_RATE_UP:
02418         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
02419         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(WID_CC_RATE_UP);
02420         this->EnableWidget(WID_CC_RATE_DOWN);
02421         break;
02422 
02423       case WID_CC_RATE:
02424         SetDParam(0, _custom_currency.rate);
02425         str = STR_JUST_INT;
02426         len = 5;
02427         line = WID_CC_RATE;
02428         afilter = CS_NUMERAL;
02429         break;
02430 
02431       case WID_CC_SEPARATOR_EDIT:
02432       case WID_CC_SEPARATOR:
02433         SetDParamStr(0, _custom_currency.separator);
02434         str = STR_JUST_RAW_STRING;
02435         len = 1;
02436         line = WID_CC_SEPARATOR;
02437         break;
02438 
02439       case WID_CC_PREFIX_EDIT:
02440       case WID_CC_PREFIX:
02441         SetDParamStr(0, _custom_currency.prefix);
02442         str = STR_JUST_RAW_STRING;
02443         len = 12;
02444         line = WID_CC_PREFIX;
02445         break;
02446 
02447       case WID_CC_SUFFIX_EDIT:
02448       case WID_CC_SUFFIX:
02449         SetDParamStr(0, _custom_currency.suffix);
02450         str = STR_JUST_RAW_STRING;
02451         len = 12;
02452         line = WID_CC_SUFFIX;
02453         break;
02454 
02455       case WID_CC_YEAR_DOWN:
02456         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
02457         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(WID_CC_YEAR_DOWN);
02458         this->EnableWidget(WID_CC_YEAR_UP);
02459         break;
02460 
02461       case WID_CC_YEAR_UP:
02462         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
02463         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(WID_CC_YEAR_UP);
02464         this->EnableWidget(WID_CC_YEAR_DOWN);
02465         break;
02466 
02467       case WID_CC_YEAR:
02468         SetDParam(0, _custom_currency.to_euro);
02469         str = STR_JUST_INT;
02470         len = 7;
02471         line = WID_CC_YEAR;
02472         afilter = CS_NUMERAL;
02473         break;
02474     }
02475 
02476     if (len != 0) {
02477       this->query_widget = line;
02478       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, this, afilter, QSF_NONE);
02479     }
02480 
02481     this->SetTimeout();
02482     this->SetDirty();
02483   }
02484 
02485   virtual void OnQueryTextFinished(char *str)
02486   {
02487     if (str == NULL) return;
02488 
02489     switch (this->query_widget) {
02490       case WID_CC_RATE:
02491         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
02492         break;
02493 
02494       case WID_CC_SEPARATOR: // Thousands separator
02495         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
02496         break;
02497 
02498       case WID_CC_PREFIX:
02499         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
02500         break;
02501 
02502       case WID_CC_SUFFIX:
02503         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
02504         break;
02505 
02506       case WID_CC_YEAR: { // Year to switch to euro
02507         int val = atoi(str);
02508 
02509         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
02510         break;
02511       }
02512     }
02513     MarkWholeScreenDirty();
02514     SetButtonState();
02515   }
02516 
02517   virtual void OnTimeout()
02518   {
02519     this->SetDirty();
02520   }
02521 };
02522 
02523 static const NWidgetPart _nested_cust_currency_widgets[] = {
02524   NWidget(NWID_HORIZONTAL),
02525     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
02526     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02527   EndContainer(),
02528   NWidget(WWT_PANEL, COLOUR_GREY),
02529     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
02530       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02531         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
02532         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
02533         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02534         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
02535       EndContainer(),
02536       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02537         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
02538         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02539         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
02540       EndContainer(),
02541       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02542         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
02543         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02544         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
02545       EndContainer(),
02546       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02547         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
02548         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02549         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
02550       EndContainer(),
02551       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02552         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02553         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02554         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02555         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
02556       EndContainer(),
02557     EndContainer(),
02558     NWidget(WWT_LABEL, COLOUR_BLUE, WID_CC_PREVIEW),
02559                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
02560   EndContainer(),
02561 };
02562 
02563 static const WindowDesc _cust_currency_desc(
02564   WDP_CENTER, 0, 0,
02565   WC_CUSTOM_CURRENCY, WC_NONE,
02566   0,
02567   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
02568 );
02569 
02571 static void ShowCustCurrency()
02572 {
02573   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
02574   new CustomCurrencyWindow(&_cust_currency_desc);
02575 }