settings_gui.cpp

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00001 /* $Id: settings_gui.cpp 25988 2013-11-13 21:56:48Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "currency.h"
00014 #include "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             Dimension string_dim;
00421             int width = (*it)->Width();
00422             string_dim.width = width + padding.width;
00423             string_dim.height = (*it)->Height(width) + padding.height;
00424             *size = maxdim(*size, string_dim);
00425             delete *it;
00426           }
00427           delete list;
00428         }
00429       }
00430     }
00431   }
00432 
00433   virtual void OnClick(Point pt, int widget, int click_count)
00434   {
00435     if (widget >= WID_GO_BASE_GRF_TEXTFILE && widget < WID_GO_BASE_GRF_TEXTFILE + TFT_END) {
00436       if (BaseGraphics::GetUsedSet() == NULL) return;
00437 
00438       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_GRF_TEXTFILE), BaseGraphics::GetUsedSet(), STR_CONTENT_TYPE_BASE_GRAPHICS);
00439       return;
00440     }
00441     if (widget >= WID_GO_BASE_SFX_TEXTFILE && widget < WID_GO_BASE_SFX_TEXTFILE + TFT_END) {
00442       if (BaseSounds::GetUsedSet() == NULL) return;
00443 
00444       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_SFX_TEXTFILE), BaseSounds::GetUsedSet(), STR_CONTENT_TYPE_BASE_SOUNDS);
00445       return;
00446     }
00447     if (widget >= WID_GO_BASE_MUSIC_TEXTFILE && widget < WID_GO_BASE_MUSIC_TEXTFILE + TFT_END) {
00448       if (BaseMusic::GetUsedSet() == NULL) return;
00449 
00450       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_MUSIC_TEXTFILE), BaseMusic::GetUsedSet(), STR_CONTENT_TYPE_BASE_MUSIC);
00451       return;
00452     }
00453     switch (widget) {
00454       case WID_GO_FULLSCREEN_BUTTON: // Click fullscreen on/off
00455         /* try to toggle full-screen on/off */
00456         if (!ToggleFullScreen(!_fullscreen)) {
00457           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
00458         }
00459         this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00460         this->SetDirty();
00461         break;
00462 
00463       default: {
00464         int selected;
00465         DropDownList *list = this->BuildDropDownList(widget, &selected);
00466         if (list != NULL) {
00467           ShowDropDownList(this, list, selected, widget);
00468         }
00469         break;
00470       }
00471     }
00472   }
00473 
00479   template <class T>
00480   void SetMediaSet(int index)
00481   {
00482     if (_game_mode == GM_MENU) {
00483       const char *name = T::GetSet(index)->name;
00484 
00485       free(T::ini_set);
00486       T::ini_set = strdup(name);
00487 
00488       T::SetSet(name);
00489       this->reload = true;
00490       this->InvalidateData();
00491     }
00492   }
00493 
00494   virtual void OnDropdownSelect(int widget, int index)
00495   {
00496     switch (widget) {
00497       case WID_GO_CURRENCY_DROPDOWN: // Currency
00498         if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();
00499         this->opt->locale.currency = index;
00500         ReInitAllWindows();
00501         break;
00502 
00503       case WID_GO_DISTANCE_DROPDOWN: // Measuring units
00504         this->opt->locale.units = index;
00505         MarkWholeScreenDirty();
00506         break;
00507 
00508       case WID_GO_ROADSIDE_DROPDOWN: // Road side
00509         if (this->opt->vehicle.road_side != index) { // only change if setting changed
00510           uint i;
00511           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
00512           SetSettingValue(i, index);
00513           MarkWholeScreenDirty();
00514         }
00515         break;
00516 
00517       case WID_GO_TOWNNAME_DROPDOWN: // Town names
00518         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
00519           this->opt->game_creation.town_name = index;
00520           SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_GAME_OPTIONS);
00521         }
00522         break;
00523 
00524       case WID_GO_AUTOSAVE_DROPDOWN: // Autosave options
00525         _settings_client.gui.autosave = index;
00526         this->SetDirty();
00527         break;
00528 
00529       case WID_GO_LANG_DROPDOWN: // Change interface language
00530         ReadLanguagePack(&_languages[index]);
00531         DeleteWindowByClass(WC_QUERY_STRING);
00532         CheckForMissingGlyphs();
00533         UpdateAllVirtCoords();
00534         ReInitAllWindows();
00535         break;
00536 
00537       case WID_GO_RESOLUTION_DROPDOWN: // Change resolution
00538         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
00539           this->SetDirty();
00540         }
00541         break;
00542 
00543       case WID_GO_SCREENSHOT_DROPDOWN: // Change screenshot format
00544         SetScreenshotFormat(index);
00545         this->SetDirty();
00546         break;
00547 
00548       case WID_GO_BASE_GRF_DROPDOWN:
00549         this->SetMediaSet<BaseGraphics>(index);
00550         break;
00551 
00552       case WID_GO_BASE_SFX_DROPDOWN:
00553         this->SetMediaSet<BaseSounds>(index);
00554         break;
00555 
00556       case WID_GO_BASE_MUSIC_DROPDOWN:
00557         this->SetMediaSet<BaseMusic>(index);
00558         break;
00559     }
00560   }
00561 
00567   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00568   {
00569     if (!gui_scope) return;
00570     this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00571 
00572     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
00573     this->GetWidget<NWidgetCore>(WID_GO_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
00574 
00575     for (TextfileType tft = TFT_BEGIN; tft < TFT_END; tft++) {
00576       this->SetWidgetDisabledState(WID_GO_BASE_GRF_TEXTFILE + tft, BaseGraphics::GetUsedSet() == NULL || BaseGraphics::GetUsedSet()->GetTextfile(tft) == NULL);
00577       this->SetWidgetDisabledState(WID_GO_BASE_SFX_TEXTFILE + tft, BaseSounds::GetUsedSet() == NULL || BaseSounds::GetUsedSet()->GetTextfile(tft) == NULL);
00578       this->SetWidgetDisabledState(WID_GO_BASE_MUSIC_TEXTFILE + tft, BaseMusic::GetUsedSet() == NULL || BaseMusic::GetUsedSet()->GetTextfile(tft) == NULL);
00579     }
00580 
00581     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
00582     this->GetWidget<NWidgetCore>(WID_GO_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
00583   }
00584 };
00585 
00586 static const NWidgetPart _nested_game_options_widgets[] = {
00587   NWidget(NWID_HORIZONTAL),
00588     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00589     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00590   EndContainer(),
00591   NWidget(WWT_PANEL, COLOUR_GREY, WID_GO_BACKGROUND), SetPIP(6, 6, 10),
00592     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
00593       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00594         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
00595           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),
00596         EndContainer(),
00597         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
00598           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),
00599         EndContainer(),
00600         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
00601           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),
00602         EndContainer(),
00603         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
00604           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),
00605           NWidget(NWID_HORIZONTAL),
00606             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
00607             NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
00608           EndContainer(),
00609         EndContainer(),
00610       EndContainer(),
00611 
00612       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00613         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
00614           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),
00615         EndContainer(),
00616         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
00617           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),
00618         EndContainer(),
00619         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
00620           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),
00621         EndContainer(),
00622         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
00623           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),
00624         EndContainer(),
00625         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
00626       EndContainer(),
00627     EndContainer(),
00628 
00629     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
00630       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00631         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
00632         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00633       EndContainer(),
00634       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),
00635       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00636         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),
00637         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),
00638         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),
00639       EndContainer(),
00640     EndContainer(),
00641 
00642     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
00643       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00644         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
00645         NWidget(NWID_SPACER), SetFill(1, 0),
00646       EndContainer(),
00647       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),
00648       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00649         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),
00650         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),
00651         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),
00652       EndContainer(),
00653     EndContainer(),
00654 
00655     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
00656       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00657         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
00658         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00659       EndContainer(),
00660       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),
00661       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00662         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),
00663         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),
00664         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),
00665       EndContainer(),
00666     EndContainer(),
00667   EndContainer(),
00668 };
00669 
00670 static const WindowDesc _game_options_desc(
00671   WDP_CENTER, 0, 0,
00672   WC_GAME_OPTIONS, WC_NONE,
00673   0,
00674   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
00675 );
00676 
00678 void ShowGameOptions()
00679 {
00680   DeleteWindowByClass(WC_GAME_OPTIONS);
00681   new GameOptionsWindow(&_game_options_desc);
00682 }
00683 
00684 static int SETTING_HEIGHT = 11;    
00685 static const int LEVEL_WIDTH = 15; 
00686 
00691 enum SettingEntryFlags {
00692   SEF_LEFT_DEPRESSED  = 0x01, 
00693   SEF_RIGHT_DEPRESSED = 0x02, 
00694   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), 
00695 
00696   SEF_LAST_FIELD = 0x04, 
00697   SEF_FILTERED   = 0x08, 
00698 
00699   /* Entry kind */
00700   SEF_SETTING_KIND = 0x10, 
00701   SEF_SUBTREE_KIND = 0x20, 
00702   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND), 
00703 };
00704 
00705 struct SettingsPage; // Forward declaration
00706 
00708 struct SettingEntrySubtree {
00709   SettingsPage *page; 
00710   bool folded;        
00711   StringID title;     
00712 };
00713 
00715 struct SettingEntrySetting {
00716   const char *name;           
00717   const SettingDesc *setting; 
00718   uint index;                 
00719 };
00720 
00722 enum RestrictionMode {
00723   RM_BASIC,                            
00724   RM_ADVANCED,                         
00725   RM_ALL,                              
00726   RM_CHANGED_AGAINST_DEFAULT,          
00727   RM_CHANGED_AGAINST_NEW,              
00728   RM_END,                              
00729 };
00730 
00732 struct SettingFilter {
00733   StringFilter string;     
00734   RestrictionMode mode;    
00735   SettingType type;       
00736 };
00737 
00739 struct SettingEntry {
00740   byte flags; 
00741   byte level; 
00742   union {
00743     SettingEntrySetting entry; 
00744     SettingEntrySubtree sub;   
00745   } d; 
00746 
00747   SettingEntry(const char *nm);
00748   SettingEntry(SettingsPage *sub, StringID title);
00749 
00750   void Init(byte level);
00751   void FoldAll();
00752   void UnFoldAll();
00753   void SetButtons(byte new_val);
00754 
00759   void SetLastField(bool last_field) { if (last_field) SETBITS(this->flags, SEF_LAST_FIELD); else CLRBITS(this->flags, SEF_LAST_FIELD); }
00760 
00761   uint Length() const;
00762   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
00763   bool IsVisible(const SettingEntry *item) const;
00764   SettingEntry *FindEntry(uint row, uint *cur_row);
00765   uint GetMaxHelpHeight(int maxw);
00766 
00767   bool IsFiltered() const;
00768   bool UpdateFilterState(SettingFilter &filter, bool force_visible);
00769 
00770   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);
00771 
00776   inline StringID GetHelpText()
00777   {
00778     assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
00779     return this->d.entry.setting->desc.str_help;
00780   }
00781 
00782   void SetValueDParams(uint first_param, int32 value);
00783 
00784 private:
00785   void DrawSetting(GameSettings *settings_ptr, int x, int y, int max_x, int state, bool highlight);
00786   bool IsVisibleByRestrictionMode(RestrictionMode mode) const;
00787 };
00788 
00790 struct SettingsPage {
00791   SettingEntry *entries; 
00792   byte num;              
00793 
00794   void Init(byte level = 0);
00795   void FoldAll();
00796   void UnFoldAll();
00797 
00798   uint Length() const;
00799   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
00800   bool IsVisible(const SettingEntry *item) const;
00801   SettingEntry *FindEntry(uint row, uint *cur_row) const;
00802   uint GetMaxHelpHeight(int maxw);
00803 
00804   bool UpdateFilterState(SettingFilter &filter, bool force_visible);
00805 
00806   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;
00807 };
00808 
00809 
00810 /* == SettingEntry methods == */
00811 
00816 SettingEntry::SettingEntry(const char *nm)
00817 {
00818   this->flags = SEF_SETTING_KIND;
00819   this->level = 0;
00820   this->d.entry.name = nm;
00821   this->d.entry.setting = NULL;
00822   this->d.entry.index = 0;
00823 }
00824 
00830 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
00831 {
00832   this->flags = SEF_SUBTREE_KIND;
00833   this->level = 0;
00834   this->d.sub.page = sub;
00835   this->d.sub.folded = true;
00836   this->d.sub.title = title;
00837 }
00838 
00843 void SettingEntry::Init(byte level)
00844 {
00845   this->level = level;
00846 
00847   switch (this->flags & SEF_KIND_MASK) {
00848     case SEF_SETTING_KIND:
00849       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
00850       assert(this->d.entry.setting != NULL);
00851       break;
00852     case SEF_SUBTREE_KIND:
00853       this->d.sub.page->Init(level + 1);
00854       break;
00855     default: NOT_REACHED();
00856   }
00857 }
00858 
00860 void SettingEntry::FoldAll()
00861 {
00862   if (this->IsFiltered()) return;
00863   switch (this->flags & SEF_KIND_MASK) {
00864     case SEF_SETTING_KIND:
00865       break;
00866 
00867     case SEF_SUBTREE_KIND:
00868       this->d.sub.folded = true;
00869       this->d.sub.page->FoldAll();
00870       break;
00871 
00872     default: NOT_REACHED();
00873   }
00874 }
00875 
00877 void SettingEntry::UnFoldAll()
00878 {
00879   if (this->IsFiltered()) return;
00880   switch (this->flags & SEF_KIND_MASK) {
00881     case SEF_SETTING_KIND:
00882       break;
00883 
00884     case SEF_SUBTREE_KIND:
00885       this->d.sub.folded = false;
00886       this->d.sub.page->UnFoldAll();
00887       break;
00888 
00889     default: NOT_REACHED();
00890   }
00891 }
00892 
00898 void SettingEntry::GetFoldingState(bool &all_folded, bool &all_unfolded) const
00899 {
00900   if (this->IsFiltered()) return;
00901   switch (this->flags & SEF_KIND_MASK) {
00902     case SEF_SETTING_KIND:
00903       break;
00904 
00905     case SEF_SUBTREE_KIND:
00906       if (this->d.sub.folded) {
00907         all_unfolded = false;
00908       } else {
00909         all_folded = false;
00910       }
00911       this->d.sub.page->GetFoldingState(all_folded, all_unfolded);
00912       break;
00913 
00914     default: NOT_REACHED();
00915   }
00916 }
00917 
00924 bool SettingEntry::IsVisible(const SettingEntry *item) const
00925 {
00926   if (this->IsFiltered()) return false;
00927   if (this == item) return true;
00928 
00929   switch (this->flags & SEF_KIND_MASK) {
00930     case SEF_SETTING_KIND:
00931       return false;
00932 
00933     case SEF_SUBTREE_KIND:
00934       return !this->d.sub.folded && this->d.sub.page->IsVisible(item);
00935 
00936     default: NOT_REACHED();
00937   }
00938 }
00939 
00945 void SettingEntry::SetButtons(byte new_val)
00946 {
00947   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
00948   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
00949 }
00950 
00952 uint SettingEntry::Length() const
00953 {
00954   if (this->IsFiltered()) return 0;
00955   switch (this->flags & SEF_KIND_MASK) {
00956     case SEF_SETTING_KIND:
00957       return 1;
00958     case SEF_SUBTREE_KIND:
00959       if (this->d.sub.folded) return 1; // Only displaying the title
00960 
00961       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
00962     default: NOT_REACHED();
00963   }
00964 }
00965 
00972 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
00973 {
00974   if (this->IsFiltered()) return NULL;
00975   if (row_num == *cur_row) return this;
00976 
00977   switch (this->flags & SEF_KIND_MASK) {
00978     case SEF_SETTING_KIND:
00979       (*cur_row)++;
00980       break;
00981     case SEF_SUBTREE_KIND:
00982       (*cur_row)++; // add one for row containing the title
00983       if (this->d.sub.folded) {
00984         break;
00985       }
00986 
00987       /* sub-page is visible => search it too */
00988       return this->d.sub.page->FindEntry(row_num, cur_row);
00989     default: NOT_REACHED();
00990   }
00991   return NULL;
00992 }
00993 
00999 uint SettingEntry::GetMaxHelpHeight(int maxw)
01000 {
01001   switch (this->flags & SEF_KIND_MASK) {
01002     case SEF_SETTING_KIND: return GetStringHeight(this->GetHelpText(), maxw);
01003     case SEF_SUBTREE_KIND: return this->d.sub.page->GetMaxHelpHeight(maxw);
01004     default:               NOT_REACHED();
01005   }
01006 }
01007 
01012 bool SettingEntry::IsFiltered() const
01013 {
01014   return (this->flags & SEF_FILTERED) != 0;
01015 }
01016 
01022 bool SettingEntry::IsVisibleByRestrictionMode(RestrictionMode mode) const
01023 {
01024   /* There shall not be any restriction, i.e. all settings shall be visible. */
01025   if (mode == RM_ALL) return true;
01026 
01027   GameSettings *settings_ptr = &GetGameSettings();
01028   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01029   const SettingDesc *sd = this->d.entry.setting;
01030 
01031   if (mode == RM_BASIC) return (this->d.entry.setting->desc.cat & SC_BASIC_LIST) != 0;
01032   if (mode == RM_ADVANCED) return (this->d.entry.setting->desc.cat & SC_ADVANCED_LIST) != 0;
01033 
01034   /* Read the current value. */
01035   const void *var = ResolveVariableAddress(settings_ptr, sd);
01036   int64 current_value = ReadValue(var, sd->save.conv);
01037 
01038   int64 filter_value;
01039 
01040   if (mode == RM_CHANGED_AGAINST_DEFAULT) {
01041     /* This entry shall only be visible, if the value deviates from its default value. */
01042 
01043     /* Read the default value. */
01044     filter_value = ReadValue(&sd->desc.def, sd->save.conv);
01045   } else {
01046     assert(mode == RM_CHANGED_AGAINST_NEW);
01047     /* This entry shall only be visible, if the value deviates from
01048      * its value is used when starting a new game. */
01049 
01050     /* Make sure we're not comparing the new game settings against itself. */
01051     assert(settings_ptr != &_settings_newgame);
01052 
01053     /* Read the new game's value. */
01054     var = ResolveVariableAddress(&_settings_newgame, sd);
01055     filter_value = ReadValue(var, sd->save.conv);
01056   }
01057 
01058   return current_value != filter_value;
01059 }
01060 
01067 bool SettingEntry::UpdateFilterState(SettingFilter &filter, bool force_visible)
01068 {
01069   CLRBITS(this->flags, SEF_FILTERED);
01070 
01071   bool visible = true;
01072   switch (this->flags & SEF_KIND_MASK) {
01073     case SEF_SETTING_KIND: {
01074       const SettingDesc *sd = this->d.entry.setting;
01075       if (!force_visible && !filter.string.IsEmpty()) {
01076         /* Process the search text filter for this item. */
01077         filter.string.ResetState();
01078 
01079         const SettingDescBase *sdb = &sd->desc;
01080 
01081         SetDParam(0, STR_EMPTY);
01082         filter.string.AddLine(sdb->str);
01083         filter.string.AddLine(this->GetHelpText());
01084 
01085         visible = filter.string.GetState();
01086       }
01087       if (filter.type != ST_ALL) visible = visible && sd->GetType() == filter.type;
01088       visible = visible && this->IsVisibleByRestrictionMode(filter.mode);
01089       break;
01090     }
01091     case SEF_SUBTREE_KIND: {
01092       if (!force_visible && !filter.string.IsEmpty()) {
01093         filter.string.ResetState();
01094         filter.string.AddLine(this->d.sub.title);
01095         force_visible = filter.string.GetState();
01096       }
01097       visible = this->d.sub.page->UpdateFilterState(filter, force_visible);
01098       break;
01099     }
01100     default: NOT_REACHED();
01101   }
01102 
01103   if (!visible) SETBITS(this->flags, SEF_FILTERED);
01104   return visible;
01105 }
01106 
01107 
01108 
01136 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)
01137 {
01138   if (this->IsFiltered()) return cur_row;
01139   if (cur_row >= max_row) return cur_row;
01140 
01141   bool rtl = _current_text_dir == TD_RTL;
01142   int offset = rtl ? -4 : 4;
01143   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
01144 
01145   int x = rtl ? right : left;
01146   int y = base_y;
01147   if (cur_row >= first_row) {
01148     int colour = _colour_gradient[COLOUR_ORANGE][4];
01149     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
01150 
01151     /* Draw vertical for parent nesting levels */
01152     for (uint lvl = 0; lvl < this->level; lvl++) {
01153       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
01154       x += level_width;
01155     }
01156     /* draw own |- prefix */
01157     int halfway_y = y + SETTING_HEIGHT / 2;
01158     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
01159     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
01160     /* Small horizontal line from the last vertical line */
01161     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
01162     x += level_width;
01163   }
01164 
01165   switch (this->flags & SEF_KIND_MASK) {
01166     case SEF_SETTING_KIND:
01167       if (cur_row >= first_row) {
01168         this->DrawSetting(settings_ptr, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK,
01169             this == selected);
01170       }
01171       cur_row++;
01172       break;
01173     case SEF_SUBTREE_KIND:
01174       if (cur_row >= first_row) {
01175         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
01176         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
01177       }
01178       cur_row++;
01179       if (!this->d.sub.folded) {
01180         if (this->flags & SEF_LAST_FIELD) {
01181           assert(this->level < sizeof(parent_last));
01182           SetBit(parent_last, this->level); // Add own last-field state
01183         }
01184 
01185         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, selected, cur_row, parent_last);
01186       }
01187       break;
01188     default: NOT_REACHED();
01189   }
01190   return cur_row;
01191 }
01192 
01193 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
01194 {
01195   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01196     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01197       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
01198     } else {
01199       return GetVariableAddress(&_settings_client.company, &sd->save);
01200     }
01201   } else {
01202     return GetVariableAddress(settings_ptr, &sd->save);
01203   }
01204 }
01205 
01211 void SettingEntry::SetValueDParams(uint first_param, int32 value)
01212 {
01213   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01214   const SettingDescBase *sdb = &this->d.entry.setting->desc;
01215   if (sdb->cmd == SDT_BOOLX) {
01216     SetDParam(first_param++, value != 0 ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
01217   } else {
01218     if ((sdb->flags & SGF_MULTISTRING) != 0) {
01219       SetDParam(first_param++, sdb->str_val - sdb->min + value);
01220     } else if ((sdb->flags & SGF_DISPLAY_ABS) != 0) {
01221       SetDParam(first_param++, sdb->str_val + ((value >= 0) ? 1 : 0));
01222       value = abs(value);
01223     } else {
01224       SetDParam(first_param++, sdb->str_val + ((value == 0 && (sdb->flags & SGF_0ISDISABLED) != 0) ? 1 : 0));
01225     }
01226     SetDParam(first_param++, value);
01227   }
01228 }
01229 
01239 void SettingEntry::DrawSetting(GameSettings *settings_ptr, int left, int right, int y, int state, bool highlight)
01240 {
01241   const SettingDesc *sd = this->d.entry.setting;
01242   const SettingDescBase *sdb = &sd->desc;
01243   const void *var = ResolveVariableAddress(settings_ptr, sd);
01244 
01245   bool rtl = _current_text_dir == TD_RTL;
01246   uint buttons_left = rtl ? right + 1 - SETTING_BUTTON_WIDTH : left;
01247   uint text_left  = left + (rtl ? 0 : SETTING_BUTTON_WIDTH + 5);
01248   uint text_right = right - (rtl ? SETTING_BUTTON_WIDTH + 5 : 0);
01249   uint button_y = y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
01250 
01251   /* We do not allow changes of some items when we are a client in a networkgame */
01252   bool editable = sd->IsEditable();
01253 
01254   SetDParam(0, highlight ? STR_ORANGE_STRING1_WHITE : STR_ORANGE_STRING1_LTBLUE);
01255   int32 value = (int32)ReadValue(var, sd->save.conv);
01256   if (sdb->cmd == SDT_BOOLX) {
01257     /* Draw checkbox for boolean-value either on/off */
01258     DrawBoolButton(buttons_left, button_y, value != 0, editable);
01259   } else if ((sdb->flags & SGF_MULTISTRING) != 0) {
01260     /* Draw [v] button for settings of an enum-type */
01261     DrawDropDownButton(buttons_left, button_y, COLOUR_YELLOW, state != 0, editable);
01262   } else {
01263     /* Draw [<][>] boxes for settings of an integer-type */
01264     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state,
01265         editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
01266   }
01267   this->SetValueDParams(1, value);
01268   DrawString(text_left, text_right, y, sdb->str, highlight ? TC_WHITE : TC_LIGHT_BLUE);
01269 }
01270 
01271 
01272 /* == SettingsPage methods == */
01273 
01278 void SettingsPage::Init(byte level)
01279 {
01280   for (uint field = 0; field < this->num; field++) {
01281     this->entries[field].Init(level);
01282   }
01283 }
01284 
01286 void SettingsPage::FoldAll()
01287 {
01288   for (uint field = 0; field < this->num; field++) {
01289     this->entries[field].FoldAll();
01290   }
01291 }
01292 
01294 void SettingsPage::UnFoldAll()
01295 {
01296   for (uint field = 0; field < this->num; field++) {
01297     this->entries[field].UnFoldAll();
01298   }
01299 }
01300 
01306 void SettingsPage::GetFoldingState(bool &all_folded, bool &all_unfolded) const
01307 {
01308   for (uint field = 0; field < this->num; field++) {
01309     this->entries[field].GetFoldingState(all_folded, all_unfolded);
01310   }
01311 }
01312 
01319 bool SettingsPage::UpdateFilterState(SettingFilter &filter, bool force_visible)
01320 {
01321   bool visible = false;
01322   bool first_visible = true;
01323   for (int field = this->num - 1; field >= 0; field--) {
01324     visible |= this->entries[field].UpdateFilterState(filter, force_visible);
01325     this->entries[field].SetLastField(first_visible);
01326     if (visible && first_visible) first_visible = false;
01327   }
01328   return visible;
01329 }
01330 
01331 
01338 bool SettingsPage::IsVisible(const SettingEntry *item) const
01339 {
01340   for (uint field = 0; field < this->num; field++) {
01341     if (this->entries[field].IsVisible(item)) return true;
01342   }
01343   return false;
01344 }
01345 
01347 uint SettingsPage::Length() const
01348 {
01349   uint length = 0;
01350   for (uint field = 0; field < this->num; field++) {
01351     length += this->entries[field].Length();
01352   }
01353   return length;
01354 }
01355 
01362 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
01363 {
01364   SettingEntry *pe = NULL;
01365 
01366   for (uint field = 0; field < this->num; field++) {
01367     pe = this->entries[field].FindEntry(row_num, cur_row);
01368     if (pe != NULL) {
01369       break;
01370     }
01371   }
01372   return pe;
01373 }
01374 
01380 uint SettingsPage::GetMaxHelpHeight(int maxw)
01381 {
01382   uint biggest = 0;
01383   for (uint field = 0; field < this->num; field++) {
01384     biggest = max(biggest, this->entries[field].GetMaxHelpHeight(maxw));
01385   }
01386   return biggest;
01387 }
01388 
01407 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
01408 {
01409   if (cur_row >= max_row) return cur_row;
01410 
01411   for (uint i = 0; i < this->num; i++) {
01412     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last, selected);
01413     if (cur_row >= max_row) {
01414       break;
01415     }
01416   }
01417   return cur_row;
01418 }
01419 
01420 
01421 static SettingEntry _settings_ui_display[] = {
01422   SettingEntry("gui.date_format_in_default_names"),
01423   SettingEntry("gui.population_in_label"),
01424   SettingEntry("gui.measure_tooltip"),
01425   SettingEntry("gui.loading_indicators"),
01426   SettingEntry("gui.liveries"),
01427   SettingEntry("gui.show_track_reservation"),
01428   SettingEntry("gui.expenses_layout"),
01429   SettingEntry("gui.smallmap_land_colour"),
01430   SettingEntry("gui.zoom_min"),
01431   SettingEntry("gui.zoom_max"),
01432   SettingEntry("gui.graph_line_thickness"),
01433 };
01435 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
01436 
01437 static SettingEntry _settings_ui_interaction[] = {
01438   SettingEntry("gui.window_snap_radius"),
01439   SettingEntry("gui.window_soft_limit"),
01440   SettingEntry("gui.link_terraform_toolbar"),
01441   SettingEntry("gui.prefer_teamchat"),
01442   SettingEntry("gui.auto_scrolling"),
01443   SettingEntry("gui.reverse_scroll"),
01444   SettingEntry("gui.smooth_scroll"),
01445   SettingEntry("gui.left_mouse_btn_scrolling"),
01446   /* While the horizontal scrollwheel scrolling is written as general code, only
01447    *  the cocoa (OSX) driver generates input for it.
01448    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
01449   SettingEntry("gui.scrollwheel_scrolling"),
01450   SettingEntry("gui.scrollwheel_multiplier"),
01451   SettingEntry("gui.osk_activation"),
01452 #ifdef __APPLE__
01453   /* We might need to emulate a right mouse button on mac */
01454   SettingEntry("gui.right_mouse_btn_emulation"),
01455 #endif
01456 };
01458 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
01459 
01460 static SettingEntry _settings_ui_sound[] = {
01461   SettingEntry("sound.click_beep"),
01462   SettingEntry("sound.confirm"),
01463   SettingEntry("sound.news_ticker"),
01464   SettingEntry("sound.news_full"),
01465   SettingEntry("sound.new_year"),
01466   SettingEntry("sound.disaster"),
01467   SettingEntry("sound.vehicle"),
01468   SettingEntry("sound.ambient"),
01469 };
01471 static SettingsPage _settings_ui_sound_page = {_settings_ui_sound, lengthof(_settings_ui_sound)};
01472 
01473 static SettingEntry _settings_ui_news[] = {
01474   SettingEntry("news_display.arrival_player"),
01475   SettingEntry("news_display.arrival_other"),
01476   SettingEntry("news_display.accident"),
01477   SettingEntry("news_display.company_info"),
01478   SettingEntry("news_display.open"),
01479   SettingEntry("news_display.close"),
01480   SettingEntry("news_display.economy"),
01481   SettingEntry("news_display.production_player"),
01482   SettingEntry("news_display.production_other"),
01483   SettingEntry("news_display.production_nobody"),
01484   SettingEntry("news_display.advice"),
01485   SettingEntry("news_display.new_vehicles"),
01486   SettingEntry("news_display.acceptance"),
01487   SettingEntry("news_display.subsidies"),
01488   SettingEntry("news_display.general"),
01489   SettingEntry("gui.coloured_news_year"),
01490 };
01492 static SettingsPage _settings_ui_news_page = {_settings_ui_news, lengthof(_settings_ui_news)};
01493 
01494 static SettingEntry _settings_ui[] = {
01495   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
01496   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
01497   SettingEntry(&_settings_ui_sound_page, STR_CONFIG_SETTING_SOUND),
01498   SettingEntry(&_settings_ui_news_page, STR_CONFIG_SETTING_NEWS),
01499   SettingEntry("gui.show_finances"),
01500   SettingEntry("gui.errmsg_duration"),
01501   SettingEntry("gui.hover_delay"),
01502   SettingEntry("gui.toolbar_pos"),
01503   SettingEntry("gui.statusbar_pos"),
01504   SettingEntry("gui.newgrf_default_palette"),
01505   SettingEntry("gui.pause_on_newgame"),
01506   SettingEntry("gui.advanced_vehicle_list"),
01507   SettingEntry("gui.timetable_in_ticks"),
01508   SettingEntry("gui.timetable_arrival_departure"),
01509   SettingEntry("gui.quick_goto"),
01510   SettingEntry("gui.default_rail_type"),
01511   SettingEntry("gui.disable_unsuitable_building"),
01512   SettingEntry("gui.persistent_buildingtools"),
01513 };
01515 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
01516 
01517 static SettingEntry _settings_construction_signals[] = {
01518   SettingEntry("construction.train_signal_side"),
01519   SettingEntry("gui.enable_signal_gui"),
01520   SettingEntry("gui.drag_signals_fixed_distance"),
01521   SettingEntry("gui.semaphore_build_before"),
01522   SettingEntry("gui.default_signal_type"),
01523   SettingEntry("gui.cycle_signal_types"),
01524 };
01526 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
01527 
01528 static SettingEntry _settings_construction[] = {
01529   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
01530   SettingEntry("construction.build_on_slopes"),
01531   SettingEntry("construction.autoslope"),
01532   SettingEntry("construction.extra_dynamite"),
01533   SettingEntry("construction.max_bridge_length"),
01534   SettingEntry("construction.max_tunnel_length"),
01535   SettingEntry("station.never_expire_airports"),
01536   SettingEntry("construction.freeform_edges"),
01537   SettingEntry("construction.extra_tree_placement"),
01538   SettingEntry("construction.command_pause_level"),
01539 };
01541 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
01542 
01543 static SettingEntry _settings_stations_cargo[] = {
01544   SettingEntry("order.improved_load"),
01545   SettingEntry("order.gradual_loading"),
01546   SettingEntry("order.selectgoods"),
01547 };
01549 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
01550 
01551 static SettingEntry _settings_stations[] = {
01552   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
01553   SettingEntry("station.adjacent_stations"),
01554   SettingEntry("station.distant_join_stations"),
01555   SettingEntry("station.station_spread"),
01556   SettingEntry("economy.station_noise_level"),
01557   SettingEntry("station.modified_catchment"),
01558   SettingEntry("construction.road_stop_on_town_road"),
01559   SettingEntry("construction.road_stop_on_competitor_road"),
01560 };
01562 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
01563 
01564 static SettingEntry _settings_economy_towns[] = {
01565   SettingEntry("difficulty.town_council_tolerance"),
01566   SettingEntry("economy.bribe"),
01567   SettingEntry("economy.exclusive_rights"),
01568   SettingEntry("economy.fund_roads"),
01569   SettingEntry("economy.fund_buildings"),
01570   SettingEntry("economy.town_layout"),
01571   SettingEntry("economy.allow_town_roads"),
01572   SettingEntry("economy.allow_town_level_crossings"),
01573   SettingEntry("economy.found_town"),
01574   SettingEntry("economy.mod_road_rebuild"),
01575   SettingEntry("economy.town_growth_rate"),
01576   SettingEntry("economy.larger_towns"),
01577   SettingEntry("economy.initial_city_size"),
01578 };
01580 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
01581 
01582 static SettingEntry _settings_economy_industries[] = {
01583   SettingEntry("construction.raw_industry_construction"),
01584   SettingEntry("construction.industry_platform"),
01585   SettingEntry("economy.multiple_industry_per_town"),
01586   SettingEntry("game_creation.oil_refinery_limit"),
01587 };
01589 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
01590 
01591 
01592 static SettingEntry _settings_economy[] = {
01593   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
01594   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
01595   SettingEntry("economy.inflation"),
01596   SettingEntry("difficulty.initial_interest"),
01597   SettingEntry("difficulty.max_loan"),
01598   SettingEntry("difficulty.subsidy_multiplier"),
01599   SettingEntry("difficulty.economy"),
01600   SettingEntry("economy.smooth_economy"),
01601   SettingEntry("economy.feeder_payment_share"),
01602   SettingEntry("economy.infrastructure_maintenance"),
01603   SettingEntry("difficulty.vehicle_costs"),
01604   SettingEntry("difficulty.construction_cost"),
01605   SettingEntry("difficulty.disasters"),
01606 };
01608 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
01609 
01610 static SettingEntry _settings_ai_npc[] = {
01611   SettingEntry("script.settings_profile"),
01612   SettingEntry("script.script_max_opcode_till_suspend"),
01613   SettingEntry("difficulty.competitor_speed"),
01614   SettingEntry("ai.ai_in_multiplayer"),
01615   SettingEntry("ai.ai_disable_veh_train"),
01616   SettingEntry("ai.ai_disable_veh_roadveh"),
01617   SettingEntry("ai.ai_disable_veh_aircraft"),
01618   SettingEntry("ai.ai_disable_veh_ship"),
01619 };
01621 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
01622 
01623 static SettingEntry _settings_ai[] = {
01624   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
01625   SettingEntry("economy.give_money"),
01626   SettingEntry("economy.allow_shares"),
01627 };
01629 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
01630 
01631 static SettingEntry _settings_vehicles_routing[] = {
01632   SettingEntry("pf.pathfinder_for_trains"),
01633   SettingEntry("pf.forbid_90_deg"),
01634   SettingEntry("pf.pathfinder_for_roadvehs"),
01635   SettingEntry("pf.roadveh_queue"),
01636   SettingEntry("pf.pathfinder_for_ships"),
01637 };
01639 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
01640 
01641 static SettingEntry _settings_vehicles_autorenew[] = {
01642   SettingEntry("company.engine_renew"),
01643   SettingEntry("company.engine_renew_months"),
01644   SettingEntry("company.engine_renew_money"),
01645 };
01647 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
01648 
01649 static SettingEntry _settings_vehicles_servicing[] = {
01650   SettingEntry("vehicle.servint_ispercent"),
01651   SettingEntry("vehicle.servint_trains"),
01652   SettingEntry("vehicle.servint_roadveh"),
01653   SettingEntry("vehicle.servint_ships"),
01654   SettingEntry("vehicle.servint_aircraft"),
01655   SettingEntry("difficulty.vehicle_breakdowns"),
01656   SettingEntry("order.no_servicing_if_no_breakdowns"),
01657   SettingEntry("order.serviceathelipad"),
01658 };
01660 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
01661 
01662 static SettingEntry _settings_vehicles_trains[] = {
01663   SettingEntry("difficulty.line_reverse_mode"),
01664   SettingEntry("pf.reverse_at_signals"),
01665   SettingEntry("vehicle.train_acceleration_model"),
01666   SettingEntry("vehicle.train_slope_steepness"),
01667   SettingEntry("vehicle.max_train_length"),
01668   SettingEntry("vehicle.wagon_speed_limits"),
01669   SettingEntry("vehicle.disable_elrails"),
01670   SettingEntry("vehicle.freight_trains"),
01671   SettingEntry("gui.stop_location"),
01672 };
01674 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
01675 
01676 static SettingEntry _settings_vehicles[] = {
01677   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
01678   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
01679   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
01680   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
01681   SettingEntry("gui.new_nonstop"),
01682   SettingEntry("gui.order_review_system"),
01683   SettingEntry("gui.vehicle_income_warn"),
01684   SettingEntry("gui.lost_vehicle_warn"),
01685   SettingEntry("vehicle.never_expire_vehicles"),
01686   SettingEntry("vehicle.max_trains"),
01687   SettingEntry("vehicle.max_roadveh"),
01688   SettingEntry("vehicle.max_aircraft"),
01689   SettingEntry("vehicle.max_ships"),
01690   SettingEntry("vehicle.plane_speed"),
01691   SettingEntry("vehicle.plane_crashes"),
01692   SettingEntry("vehicle.dynamic_engines"),
01693   SettingEntry("vehicle.roadveh_acceleration_model"),
01694   SettingEntry("vehicle.roadveh_slope_steepness"),
01695   SettingEntry("vehicle.smoke_amount"),
01696 };
01698 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
01699 
01700 static SettingEntry _settings_main[] = {
01701   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
01702   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
01703   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
01704   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
01705   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
01706   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
01707 };
01708 
01710 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
01711 
01712 static const StringID _game_settings_restrict_dropdown[] = {
01713   STR_CONFIG_SETTING_RESTRICT_BASIC,                            // RM_BASIC
01714   STR_CONFIG_SETTING_RESTRICT_ADVANCED,                         // RM_ADVANCED
01715   STR_CONFIG_SETTING_RESTRICT_ALL,                              // RM_ALL
01716   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_DEFAULT,          // RM_CHANGED_AGAINST_DEFAULT
01717   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_NEW,              // RM_CHANGED_AGAINST_NEW
01718 };
01719 assert_compile(lengthof(_game_settings_restrict_dropdown) == RM_END);
01720 
01721 struct GameSettingsWindow : Window {
01722   static const int SETTINGTREE_LEFT_OFFSET   = 5; 
01723   static const int SETTINGTREE_RIGHT_OFFSET  = 5; 
01724   static const int SETTINGTREE_TOP_OFFSET    = 5; 
01725   static const int SETTINGTREE_BOTTOM_OFFSET = 5; 
01726 
01727   static GameSettings *settings_ptr; 
01728 
01729   SettingEntry *valuewindow_entry;   
01730   SettingEntry *clicked_entry;       
01731   SettingEntry *last_clicked;        
01732   SettingEntry *valuedropdown_entry; 
01733   bool closing_dropdown;             
01734 
01735   SettingFilter filter;              
01736   QueryString filter_editbox;        
01737   bool manually_changed_folding;     
01738 
01739   Scrollbar *vscroll;
01740 
01741   GameSettingsWindow(const WindowDesc *desc) : filter_editbox(50)
01742   {
01743     static bool first_time = true;
01744 
01745     filter.mode = (RestrictionMode)_settings_client.gui.settings_restriction_mode;
01746     filter.type = ST_ALL;
01747     settings_ptr = &GetGameSettings();
01748 
01749     /* Build up the dynamic settings-array only once per OpenTTD session */
01750     if (first_time) {
01751       _settings_main_page.Init();
01752       first_time = false;
01753     } else {
01754       _settings_main_page.FoldAll(); // Close all sub-pages
01755     }
01756 
01757     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
01758     this->clicked_entry = NULL; // No numeric setting buttons are depressed
01759     this->last_clicked = NULL;
01760     this->valuedropdown_entry = NULL;
01761     this->closing_dropdown = false;
01762     this->manually_changed_folding = false;
01763 
01764     this->CreateNestedTree(desc);
01765     this->vscroll = this->GetScrollbar(WID_GS_SCROLLBAR);
01766     this->FinishInitNested(desc, WN_GAME_OPTIONS_GAME_SETTINGS);
01767 
01768     this->querystrings[WID_GS_FILTER] = &this->filter_editbox;
01769     this->filter_editbox.cancel_button = QueryString::ACTION_CLEAR;
01770     this->SetFocusedWidget(WID_GS_FILTER);
01771 
01772     this->InvalidateData();
01773   }
01774 
01775   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
01776   {
01777     switch (widget) {
01778       case WID_GS_OPTIONSPANEL:
01779         resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
01780         resize->width  = 1;
01781 
01782         size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
01783         break;
01784 
01785       case WID_GS_HELP_TEXT: {
01786         static const StringID setting_types[] = {
01787           STR_CONFIG_SETTING_TYPE_CLIENT,
01788           STR_CONFIG_SETTING_TYPE_COMPANY_MENU, STR_CONFIG_SETTING_TYPE_COMPANY_INGAME,
01789           STR_CONFIG_SETTING_TYPE_GAME_MENU, STR_CONFIG_SETTING_TYPE_GAME_INGAME,
01790         };
01791         for (uint i = 0; i < lengthof(setting_types); i++) {
01792           SetDParam(0, setting_types[i]);
01793           size->width = max(size->width, GetStringBoundingBox(STR_CONFIG_SETTING_TYPE).width);
01794         }
01795         size->height = 2 * FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL +
01796             max(size->height, _settings_main_page.GetMaxHelpHeight(size->width));
01797         break;
01798       }
01799 
01800       default:
01801         break;
01802     }
01803   }
01804 
01805   virtual void OnPaint()
01806   {
01807     if (this->closing_dropdown) {
01808       this->closing_dropdown = false;
01809       assert(this->valuedropdown_entry != NULL);
01810       this->valuedropdown_entry->SetButtons(0);
01811       this->valuedropdown_entry = NULL;
01812     }
01813     this->DrawWidgets();
01814   }
01815 
01816   virtual void SetStringParameters(int widget) const
01817   {
01818     switch (widget) {
01819       case WID_GS_RESTRICT_DROPDOWN:
01820         SetDParam(0, _game_settings_restrict_dropdown[this->filter.mode]);
01821         break;
01822 
01823       case WID_GS_TYPE_DROPDOWN:
01824         switch (this->filter.type) {
01825           case ST_GAME:    SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_GAME_INGAME); break;
01826           case ST_COMPANY: SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_DROPDOWN_COMPANY_INGAME); break;
01827           case ST_CLIENT:  SetDParam(0, STR_CONFIG_SETTING_TYPE_DROPDOWN_CLIENT); break;
01828           default:         SetDParam(0, STR_CONFIG_SETTING_TYPE_DROPDOWN_ALL); break;
01829         }
01830         break;
01831     }
01832   }
01833 
01834   DropDownList *BuildDropDownList(int widget) const
01835   {
01836     DropDownList *list = NULL;
01837     switch (widget) {
01838       case WID_GS_RESTRICT_DROPDOWN:
01839         list = new DropDownList();
01840 
01841         for (int mode = 0; mode != RM_END; mode++) {
01842           /* If we are in adv. settings screen for the new game's settings,
01843            * we don't want to allow comparing with new game's settings. */
01844           bool disabled = mode == RM_CHANGED_AGAINST_NEW && settings_ptr == &_settings_newgame;
01845 
01846           list->push_back(new DropDownListStringItem(_game_settings_restrict_dropdown[mode], mode, disabled));
01847         }
01848         break;
01849 
01850       case WID_GS_TYPE_DROPDOWN:
01851         list = new DropDownList();
01852         list->push_back(new DropDownListStringItem(STR_CONFIG_SETTING_TYPE_DROPDOWN_ALL, ST_ALL, false));
01853         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));
01854         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));
01855         list->push_back(new DropDownListStringItem(STR_CONFIG_SETTING_TYPE_DROPDOWN_CLIENT, ST_CLIENT, false));
01856         break;
01857     }
01858     return list;
01859   }
01860 
01861   virtual void DrawWidget(const Rect &r, int widget) const
01862   {
01863     switch (widget) {
01864       case WID_GS_OPTIONSPANEL:
01865         _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
01866             this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->last_clicked);
01867         break;
01868 
01869       case WID_GS_HELP_TEXT:
01870         if (this->last_clicked != NULL) {
01871           const SettingDesc *sd = this->last_clicked->d.entry.setting;
01872 
01873           int y = r.top;
01874           switch (sd->GetType()) {
01875             case ST_COMPANY: SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_COMPANY_INGAME); break;
01876             case ST_CLIENT:  SetDParam(0, STR_CONFIG_SETTING_TYPE_CLIENT); break;
01877             case ST_GAME:    SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_GAME_MENU : STR_CONFIG_SETTING_TYPE_GAME_INGAME); break;
01878             default: NOT_REACHED();
01879           }
01880           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_TYPE);
01881           y += FONT_HEIGHT_NORMAL;
01882 
01883           int32 default_value = ReadValue(&sd->desc.def, sd->save.conv);
01884           this->last_clicked->SetValueDParams(0, default_value);
01885           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_DEFAULT_VALUE);
01886           y += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
01887 
01888           DrawStringMultiLine(r.left, r.right, y, r.bottom, this->last_clicked->GetHelpText(), TC_WHITE);
01889         }
01890         break;
01891 
01892       default:
01893         break;
01894     }
01895   }
01896 
01901   void SetDisplayedHelpText(SettingEntry *pe)
01902   {
01903     if (this->last_clicked != pe) this->SetDirty();
01904     this->last_clicked = pe;
01905   }
01906 
01907   virtual void OnClick(Point pt, int widget, int click_count)
01908   {
01909     switch (widget) {
01910       case WID_GS_EXPAND_ALL:
01911         this->manually_changed_folding = true;
01912         _settings_main_page.UnFoldAll();
01913         this->InvalidateData();
01914         break;
01915 
01916       case WID_GS_COLLAPSE_ALL:
01917         this->manually_changed_folding = true;
01918         _settings_main_page.FoldAll();
01919         this->InvalidateData();
01920         break;
01921 
01922       case WID_GS_RESTRICT_DROPDOWN: {
01923         DropDownList *list = this->BuildDropDownList(widget);
01924         if (list != NULL) {
01925           ShowDropDownList(this, list, this->filter.mode, widget);
01926         }
01927         break;
01928       }
01929 
01930       case WID_GS_TYPE_DROPDOWN: {
01931         DropDownList *list = this->BuildDropDownList(widget);
01932         if (list != NULL) {
01933           ShowDropDownList(this, list, this->filter.type, widget);
01934         }
01935         break;
01936       }
01937     }
01938 
01939     if (widget != WID_GS_OPTIONSPANEL) return;
01940 
01941     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET);
01942     if (btn == INT_MAX) return;
01943 
01944     uint cur_row = 0;
01945     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
01946 
01947     if (pe == NULL) return;  // Clicked below the last setting of the page
01948 
01949     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
01950     if (x < 0) return;  // Clicked left of the entry
01951 
01952     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
01953       this->SetDisplayedHelpText(NULL);
01954       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
01955 
01956       this->manually_changed_folding = true;
01957 
01958       this->InvalidateData();
01959       return;
01960     }
01961 
01962     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01963     const SettingDesc *sd = pe->d.entry.setting;
01964 
01965     /* return if action is only active in network, or only settable by server */
01966     if (!sd->IsEditable()) {
01967       this->SetDisplayedHelpText(pe);
01968       return;
01969     }
01970 
01971     const void *var = ResolveVariableAddress(settings_ptr, sd);
01972     int32 value = (int32)ReadValue(var, sd->save.conv);
01973 
01974     /* clicked on the icon on the left side. Either scroller, bool on/off or dropdown */
01975     if (x < SETTING_BUTTON_WIDTH && (sd->desc.flags & SGF_MULTISTRING)) {
01976       const SettingDescBase *sdb = &sd->desc;
01977       this->SetDisplayedHelpText(pe);
01978 
01979       if (this->valuedropdown_entry == pe) {
01980         /* unclick the dropdown */
01981         HideDropDownMenu(this);
01982         this->closing_dropdown = false;
01983         this->valuedropdown_entry->SetButtons(0);
01984         this->valuedropdown_entry = NULL;
01985       } else {
01986         if (this->valuedropdown_entry != NULL) this->valuedropdown_entry->SetButtons(0);
01987         this->closing_dropdown = false;
01988 
01989         const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_GS_OPTIONSPANEL);
01990         int rel_y = (pt.y - (int)wid->pos_y - SETTINGTREE_TOP_OFFSET) % wid->resize_y;
01991 
01992         Rect wi_rect;
01993         wi_rect.left = pt.x - (_current_text_dir == TD_RTL ? SETTING_BUTTON_WIDTH - 1 - x : x);
01994         wi_rect.right = wi_rect.left + SETTING_BUTTON_WIDTH - 1;
01995         wi_rect.top = pt.y - rel_y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
01996         wi_rect.bottom = wi_rect.top + SETTING_BUTTON_HEIGHT - 1;
01997 
01998         /* For dropdowns we also have to check the y position thoroughly, the mouse may not above the just opening dropdown */
01999         if (pt.y >= wi_rect.top && pt.y <= wi_rect.bottom) {
02000           this->valuedropdown_entry = pe;
02001           this->valuedropdown_entry->SetButtons(SEF_LEFT_DEPRESSED);
02002 
02003           DropDownList *list = new DropDownList();
02004           for (int i = sdb->min; i <= (int)sdb->max; i++) {
02005             list->push_back(new DropDownListStringItem(sdb->str_val + i - sdb->min, i, false));
02006           }
02007 
02008           ShowDropDownListAt(this, list, value, -1, wi_rect, COLOUR_ORANGE, true);
02009         }
02010       }
02011       this->SetDirty();
02012     } else if (x < SETTING_BUTTON_WIDTH) {
02013       this->SetDisplayedHelpText(pe);
02014       const SettingDescBase *sdb = &sd->desc;
02015       int32 oldvalue = value;
02016 
02017       switch (sdb->cmd) {
02018         case SDT_BOOLX: value ^= 1; break;
02019         case SDT_ONEOFMANY:
02020         case SDT_NUMX: {
02021           /* Add a dynamic step-size to the scroller. In a maximum of
02022            * 50-steps you should be able to get from min to max,
02023            * unless specified otherwise in the 'interval' variable
02024            * of the current setting. */
02025           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
02026           if (step == 0) step = 1;
02027 
02028           /* don't allow too fast scrolling */
02029           if ((this->flags & WF_TIMEOUT) && this->timeout_timer > 1) {
02030             _left_button_clicked = false;
02031             return;
02032           }
02033 
02034           /* Increase or decrease the value and clamp it to extremes */
02035           if (x >= SETTING_BUTTON_WIDTH / 2) {
02036             value += step;
02037             if (sdb->min < 0) {
02038               assert((int32)sdb->max >= 0);
02039               if (value > (int32)sdb->max) value = (int32)sdb->max;
02040             } else {
02041               if ((uint32)value > sdb->max) value = (int32)sdb->max;
02042             }
02043             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
02044           } else {
02045             value -= step;
02046             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
02047           }
02048 
02049           /* Set up scroller timeout for numeric values */
02050           if (value != oldvalue) {
02051             if (this->clicked_entry != NULL) { // Release previous buttons if any
02052               this->clicked_entry->SetButtons(0);
02053             }
02054             this->clicked_entry = pe;
02055             this->clicked_entry->SetButtons((x >= SETTING_BUTTON_WIDTH / 2) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
02056             this->SetTimeout();
02057             _left_button_clicked = false;
02058           }
02059           break;
02060         }
02061 
02062         default: NOT_REACHED();
02063       }
02064 
02065       if (value != oldvalue) {
02066         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02067           SetCompanySetting(pe->d.entry.index, value);
02068         } else {
02069           SetSettingValue(pe->d.entry.index, value);
02070         }
02071         this->SetDirty();
02072       }
02073     } else {
02074       /* Only open editbox if clicked for the second time, and only for types where it is sensible for. */
02075       if (this->last_clicked == pe && sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
02076         /* Show the correct currency-translated value */
02077         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
02078 
02079         this->valuewindow_entry = pe;
02080         SetDParam(0, value);
02081         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
02082       }
02083       this->SetDisplayedHelpText(pe);
02084     }
02085   }
02086 
02087   virtual void OnTimeout()
02088   {
02089     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
02090       this->clicked_entry->SetButtons(0);
02091       this->clicked_entry = NULL;
02092       this->SetDirty();
02093     }
02094   }
02095 
02096   virtual void OnQueryTextFinished(char *str)
02097   {
02098     /* The user pressed cancel */
02099     if (str == NULL) return;
02100 
02101     assert(this->valuewindow_entry != NULL);
02102     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
02103     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
02104 
02105     int32 value;
02106     if (!StrEmpty(str)) {
02107       value = atoi(str);
02108 
02109       /* Save the correct currency-translated value */
02110       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
02111     } else {
02112       value = (int32)(size_t)sd->desc.def;
02113     }
02114 
02115     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02116       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
02117     } else {
02118       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
02119     }
02120     this->SetDirty();
02121   }
02122 
02123   virtual void OnDropdownSelect(int widget, int index)
02124   {
02125     switch (widget) {
02126       case WID_GS_RESTRICT_DROPDOWN:
02127         this->filter.mode = (RestrictionMode)index;
02128         if (this->filter.mode == RM_CHANGED_AGAINST_DEFAULT ||
02129             this->filter.mode == RM_CHANGED_AGAINST_NEW) {
02130 
02131           if (!this->manually_changed_folding) {
02132             /* Expand all when selecting 'changes'. Update the filter state first, in case it becomes less restrictive in some cases. */
02133             _settings_main_page.UpdateFilterState(this->filter, false);
02134             _settings_main_page.UnFoldAll();
02135           }
02136         } else {
02137           /* Non-'changes' filter. Save as default. */
02138           _settings_client.gui.settings_restriction_mode = this->filter.mode;
02139         }
02140         this->InvalidateData();
02141         break;
02142 
02143       case WID_GS_TYPE_DROPDOWN:
02144         this->filter.type = (SettingType)index;
02145         this->InvalidateData();
02146         break;
02147 
02148       default:
02149         if (widget < 0) {
02150           /* Deal with drop down boxes on the panel. */
02151           assert(this->valuedropdown_entry != NULL);
02152           const SettingDesc *sd = this->valuedropdown_entry->d.entry.setting;
02153           assert(sd->desc.flags & SGF_MULTISTRING);
02154 
02155           if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02156             SetCompanySetting(this->valuedropdown_entry->d.entry.index, index);
02157           } else {
02158             SetSettingValue(this->valuedropdown_entry->d.entry.index, index);
02159           }
02160 
02161           this->SetDirty();
02162         }
02163         break;
02164     }
02165   }
02166 
02167   virtual void OnDropdownClose(Point pt, int widget, int index, bool instant_close)
02168   {
02169     if (widget >= 0) {
02170       /* Normally the default implementation of OnDropdownClose() takes care of
02171        * a few things. We want that behaviour here too, but only for
02172        * "normal" dropdown boxes. The special dropdown boxes added for every
02173        * setting that needs one can't have this call. */
02174       Window::OnDropdownClose(pt, widget, index, instant_close);
02175     } else {
02176       /* We cannot raise the dropdown button just yet. OnClick needs some hint, whether
02177        * the same dropdown button was clicked again, and then not open the dropdown again.
02178        * So, we only remember that it was closed, and process it on the next OnPaint, which is
02179        * after OnClick. */
02180       assert(this->valuedropdown_entry != NULL);
02181       this->closing_dropdown = true;
02182       this->SetDirty();
02183     }
02184   }
02185 
02186   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
02187   {
02188     if (!gui_scope) return;
02189 
02190     _settings_main_page.UpdateFilterState(this->filter, false);
02191 
02192     this->vscroll->SetCount(_settings_main_page.Length());
02193 
02194     if (this->last_clicked != NULL && !_settings_main_page.IsVisible(this->last_clicked)) {
02195       this->SetDisplayedHelpText(NULL);
02196     }
02197 
02198     bool all_folded = true;
02199     bool all_unfolded = true;
02200     _settings_main_page.GetFoldingState(all_folded, all_unfolded);
02201     this->SetWidgetDisabledState(WID_GS_EXPAND_ALL, all_unfolded);
02202     this->SetWidgetDisabledState(WID_GS_COLLAPSE_ALL, all_folded);
02203   }
02204 
02205   virtual void OnEditboxChanged(int wid)
02206   {
02207     if (wid == WID_GS_FILTER) {
02208       this->filter.string.SetFilterTerm(this->filter_editbox.text.buf);
02209       if (!this->filter.string.IsEmpty() && !this->manually_changed_folding) {
02210         /* User never expanded/collapsed single pages and entered a filter term.
02211          * Expand everything, to save weird expand clicks, */
02212         _settings_main_page.UnFoldAll();
02213       }
02214       this->InvalidateData();
02215     }
02216   }
02217 
02218   virtual void OnResize()
02219   {
02220     this->vscroll->SetCapacityFromWidget(this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
02221   }
02222 };
02223 
02224 GameSettings *GameSettingsWindow::settings_ptr = NULL;
02225 
02226 static const NWidgetPart _nested_settings_selection_widgets[] = {
02227   NWidget(NWID_HORIZONTAL),
02228     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
02229     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02230   EndContainer(),
02231   NWidget(WWT_PANEL, COLOUR_MAUVE),
02232     NWidget(NWID_HORIZONTAL), SetPadding(WD_TEXTPANEL_TOP, 0, WD_TEXTPANEL_BOTTOM, 0),
02233         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02234       NWidget(WWT_TEXT, COLOUR_MAUVE, WID_GS_RESTRICT_LABEL), SetDataTip(STR_CONFIG_SETTING_RESTRICT_LABEL, STR_NULL),
02235       NWidget(NWID_VERTICAL), SetPIP(0, WD_PAR_VSEP_NORMAL, 0),
02236         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),
02237         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),
02238       EndContainer(),
02239     EndContainer(),
02240     NWidget(NWID_HORIZONTAL), SetPadding(0, 0, WD_TEXTPANEL_BOTTOM, 0),
02241         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02242       NWidget(WWT_TEXT, COLOUR_MAUVE), SetFill(0, 1), SetDataTip(STR_CONFIG_SETTING_FILTER_TITLE, STR_NULL),
02243       NWidget(WWT_EDITBOX, COLOUR_MAUVE, WID_GS_FILTER), SetFill(1, 0), SetMinimalSize(50, 12), SetResize(1, 0),
02244           SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
02245     EndContainer(),
02246   EndContainer(),
02247   NWidget(NWID_HORIZONTAL),
02248     NWidget(WWT_PANEL, COLOUR_MAUVE, WID_GS_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(WID_GS_SCROLLBAR), EndContainer(),
02249     NWidget(NWID_VERTICAL),
02250       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_GS_SCROLLBAR),
02251     EndContainer(),
02252   EndContainer(),
02253   NWidget(WWT_PANEL, COLOUR_MAUVE), SetMinimalSize(400, 40),
02254     NWidget(WWT_EMPTY, INVALID_COLOUR, WID_GS_HELP_TEXT), SetMinimalSize(300, 25), SetFill(1, 1), SetResize(1, 0),
02255         SetPadding(WD_FRAMETEXT_TOP, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_BOTTOM, WD_FRAMETEXT_LEFT),
02256     NWidget(NWID_HORIZONTAL),
02257       NWidget(WWT_PANEL, COLOUR_MAUVE),
02258         NWidget(NWID_HORIZONTAL),
02259           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_EXPAND_ALL), SetDataTip(STR_CONFIG_SETTING_EXPAND_ALL, STR_NULL),
02260           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_COLLAPSE_ALL), SetDataTip(STR_CONFIG_SETTING_COLLAPSE_ALL, STR_NULL),
02261           NWidget(NWID_SPACER, INVALID_COLOUR), SetFill(1, 1), SetResize(1, 0),
02262         EndContainer(),
02263       EndContainer(),
02264       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
02265     EndContainer(),
02266   EndContainer(),
02267 };
02268 
02269 static const WindowDesc _settings_selection_desc(
02270   WDP_CENTER, 510, 450,
02271   WC_GAME_OPTIONS, WC_NONE,
02272   0,
02273   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
02274 );
02275 
02277 void ShowGameSettings()
02278 {
02279   DeleteWindowByClass(WC_GAME_OPTIONS);
02280   new GameSettingsWindow(&_settings_selection_desc);
02281 }
02282 
02283 
02293 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
02294 {
02295   int colour = _colour_gradient[button_colour][2];
02296 
02297   DrawFrameRect(x,                            y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
02298   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);
02299   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
02300   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + SETTING_BUTTON_WIDTH / 2, y + WD_IMGBTN_TOP);
02301 
02302   /* Grey out the buttons that aren't clickable */
02303   bool rtl = _current_text_dir == TD_RTL;
02304   if (rtl ? !clickable_right : !clickable_left) {
02305     GfxFillRect(x                            + 1, y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02306   }
02307   if (rtl ? !clickable_left : !clickable_right) {
02308     GfxFillRect(x + SETTING_BUTTON_WIDTH / 2 + 1, y, x + SETTING_BUTTON_WIDTH     - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02309   }
02310 }
02311 
02320 void DrawDropDownButton(int x, int y, Colours button_colour, bool state, bool clickable)
02321 {
02322   static const char *DOWNARROW = "\xEE\x8A\xAA";
02323 
02324   int colour = _colour_gradient[button_colour][2];
02325 
02326   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, state ? FR_LOWERED : FR_NONE);
02327   DrawString(x + (state ? 1 : 0), x + SETTING_BUTTON_WIDTH - (state ? 0 : 1), y + (state ? 2 : 1), DOWNARROW, TC_BLACK, SA_HOR_CENTER);
02328 
02329   if (!clickable) {
02330     GfxFillRect(x +  1, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02331   }
02332 }
02333 
02341 void DrawBoolButton(int x, int y, bool state, bool clickable)
02342 {
02343   static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
02344   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, _bool_ctabs[state][clickable], state ? FR_LOWERED : FR_NONE);
02345 }
02346 
02347 struct CustomCurrencyWindow : Window {
02348   int query_widget;
02349 
02350   CustomCurrencyWindow(const WindowDesc *desc) : Window()
02351   {
02352     this->InitNested(desc);
02353 
02354     SetButtonState();
02355   }
02356 
02357   void SetButtonState()
02358   {
02359     this->SetWidgetDisabledState(WID_CC_RATE_DOWN, _custom_currency.rate == 1);
02360     this->SetWidgetDisabledState(WID_CC_RATE_UP, _custom_currency.rate == UINT16_MAX);
02361     this->SetWidgetDisabledState(WID_CC_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
02362     this->SetWidgetDisabledState(WID_CC_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
02363   }
02364 
02365   virtual void SetStringParameters(int widget) const
02366   {
02367     switch (widget) {
02368       case WID_CC_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
02369       case WID_CC_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
02370       case WID_CC_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
02371       case WID_CC_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
02372       case WID_CC_YEAR:
02373         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
02374         SetDParam(1, _custom_currency.to_euro);
02375         break;
02376 
02377       case WID_CC_PREVIEW:
02378         SetDParam(0, 10000);
02379         break;
02380     }
02381   }
02382 
02383   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
02384   {
02385     switch (widget) {
02386       /* Set the appropriate width for the edit 'buttons' */
02387       case WID_CC_SEPARATOR_EDIT:
02388       case WID_CC_PREFIX_EDIT:
02389       case WID_CC_SUFFIX_EDIT:
02390         size->width  = this->GetWidget<NWidgetBase>(WID_CC_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(WID_CC_RATE_UP)->smallest_x;
02391         break;
02392 
02393       /* Make sure the window is wide enough for the widest exchange rate */
02394       case WID_CC_RATE:
02395         SetDParam(0, 1);
02396         SetDParam(1, INT32_MAX);
02397         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
02398         break;
02399     }
02400   }
02401 
02402   virtual void OnClick(Point pt, int widget, int click_count)
02403   {
02404     int line = 0;
02405     int len = 0;
02406     StringID str = 0;
02407     CharSetFilter afilter = CS_ALPHANUMERAL;
02408 
02409     switch (widget) {
02410       case WID_CC_RATE_DOWN:
02411         if (_custom_currency.rate > 1) _custom_currency.rate--;
02412         if (_custom_currency.rate == 1) this->DisableWidget(WID_CC_RATE_DOWN);
02413         this->EnableWidget(WID_CC_RATE_UP);
02414         break;
02415 
02416       case WID_CC_RATE_UP:
02417         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
02418         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(WID_CC_RATE_UP);
02419         this->EnableWidget(WID_CC_RATE_DOWN);
02420         break;
02421 
02422       case WID_CC_RATE:
02423         SetDParam(0, _custom_currency.rate);
02424         str = STR_JUST_INT;
02425         len = 5;
02426         line = WID_CC_RATE;
02427         afilter = CS_NUMERAL;
02428         break;
02429 
02430       case WID_CC_SEPARATOR_EDIT:
02431       case WID_CC_SEPARATOR:
02432         SetDParamStr(0, _custom_currency.separator);
02433         str = STR_JUST_RAW_STRING;
02434         len = 1;
02435         line = WID_CC_SEPARATOR;
02436         break;
02437 
02438       case WID_CC_PREFIX_EDIT:
02439       case WID_CC_PREFIX:
02440         SetDParamStr(0, _custom_currency.prefix);
02441         str = STR_JUST_RAW_STRING;
02442         len = 12;
02443         line = WID_CC_PREFIX;
02444         break;
02445 
02446       case WID_CC_SUFFIX_EDIT:
02447       case WID_CC_SUFFIX:
02448         SetDParamStr(0, _custom_currency.suffix);
02449         str = STR_JUST_RAW_STRING;
02450         len = 12;
02451         line = WID_CC_SUFFIX;
02452         break;
02453 
02454       case WID_CC_YEAR_DOWN:
02455         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
02456         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(WID_CC_YEAR_DOWN);
02457         this->EnableWidget(WID_CC_YEAR_UP);
02458         break;
02459 
02460       case WID_CC_YEAR_UP:
02461         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
02462         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(WID_CC_YEAR_UP);
02463         this->EnableWidget(WID_CC_YEAR_DOWN);
02464         break;
02465 
02466       case WID_CC_YEAR:
02467         SetDParam(0, _custom_currency.to_euro);
02468         str = STR_JUST_INT;
02469         len = 7;
02470         line = WID_CC_YEAR;
02471         afilter = CS_NUMERAL;
02472         break;
02473     }
02474 
02475     if (len != 0) {
02476       this->query_widget = line;
02477       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, this, afilter, QSF_NONE);
02478     }
02479 
02480     this->SetTimeout();
02481     this->SetDirty();
02482   }
02483 
02484   virtual void OnQueryTextFinished(char *str)
02485   {
02486     if (str == NULL) return;
02487 
02488     switch (this->query_widget) {
02489       case WID_CC_RATE:
02490         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
02491         break;
02492 
02493       case WID_CC_SEPARATOR: // Thousands separator
02494         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
02495         break;
02496 
02497       case WID_CC_PREFIX:
02498         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
02499         break;
02500 
02501       case WID_CC_SUFFIX:
02502         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
02503         break;
02504 
02505       case WID_CC_YEAR: { // Year to switch to euro
02506         int val = atoi(str);
02507 
02508         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
02509         break;
02510       }
02511     }
02512     MarkWholeScreenDirty();
02513     SetButtonState();
02514   }
02515 
02516   virtual void OnTimeout()
02517   {
02518     this->SetDirty();
02519   }
02520 };
02521 
02522 static const NWidgetPart _nested_cust_currency_widgets[] = {
02523   NWidget(NWID_HORIZONTAL),
02524     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
02525     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02526   EndContainer(),
02527   NWidget(WWT_PANEL, COLOUR_GREY),
02528     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
02529       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02530         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
02531         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
02532         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02533         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
02534       EndContainer(),
02535       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02536         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
02537         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02538         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
02539       EndContainer(),
02540       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02541         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
02542         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02543         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
02544       EndContainer(),
02545       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02546         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
02547         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02548         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
02549       EndContainer(),
02550       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02551         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02552         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02553         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02554         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
02555       EndContainer(),
02556     EndContainer(),
02557     NWidget(WWT_LABEL, COLOUR_BLUE, WID_CC_PREVIEW),
02558                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
02559   EndContainer(),
02560 };
02561 
02562 static const WindowDesc _cust_currency_desc(
02563   WDP_CENTER, 0, 0,
02564   WC_CUSTOM_CURRENCY, WC_NONE,
02565   0,
02566   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
02567 );
02568 
02570 static void ShowCustCurrency()
02571 {
02572   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
02573   new CustomCurrencyWindow(&_cust_currency_desc);
02574 }