settings_gui.cpp

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "currency.h"
00014 #include "error.h"
00015 #include "settings_gui.h"
00016 #include "textbuf_gui.h"
00017 #include "command_func.h"
00018 #include "screenshot.h"
00019 #include "network/network.h"
00020 #include "town.h"
00021 #include "settings_internal.h"
00022 #include "newgrf_townname.h"
00023 #include "strings_func.h"
00024 #include "window_func.h"
00025 #include "string_func.h"
00026 #include "widgets/dropdown_type.h"
00027 #include "widgets/dropdown_func.h"
00028 #include "highscore.h"
00029 #include "base_media_base.h"
00030 #include "company_base.h"
00031 #include "company_func.h"
00032 #include "viewport_func.h"
00033 #include "core/geometry_func.hpp"
00034 #include "ai/ai.hpp"
00035 #include "blitter/factory.hpp"
00036 #include "language.h"
00037 #include "textfile_gui.h"
00038 #include "stringfilter_type.h"
00039 #include "querystring_gui.h"
00040 
00041 
00042 static const StringID _units_dropdown[] = {
00043   STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,
00044   STR_GAME_OPTIONS_MEASURING_UNITS_METRIC,
00045   STR_GAME_OPTIONS_MEASURING_UNITS_SI,
00046   INVALID_STRING_ID
00047 };
00048 
00049 static const StringID _driveside_dropdown[] = {
00050   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT,
00051   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_RIGHT,
00052   INVALID_STRING_ID
00053 };
00054 
00055 static const StringID _autosave_dropdown[] = {
00056   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
00057   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_MONTH,
00058   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_3_MONTHS,
00059   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_6_MONTHS,
00060   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_12_MONTHS,
00061   INVALID_STRING_ID,
00062 };
00063 
00064 int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1; 
00065 static StringID *_grf_names = NULL; 
00066 static int _nb_grf_names = 0;       
00067 
00068 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd);
00069 
00071 void InitGRFTownGeneratorNames()
00072 {
00073   free(_grf_names);
00074   _grf_names = GetGRFTownNameList();
00075   _nb_grf_names = 0;
00076   for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;
00077 }
00078 
00084 static inline StringID TownName(int town_name)
00085 {
00086   if (town_name < _nb_orig_names) return STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + town_name;
00087   town_name -= _nb_orig_names;
00088   if (town_name < _nb_grf_names) return _grf_names[town_name];
00089   return STR_UNDEFINED;
00090 }
00091 
00096 static int GetCurRes()
00097 {
00098   int i;
00099 
00100   for (i = 0; i != _num_resolutions; i++) {
00101     if ((int)_resolutions[i].width == _screen.width &&
00102         (int)_resolutions[i].height == _screen.height) {
00103       break;
00104     }
00105   }
00106   return i;
00107 }
00108 
00109 static void ShowCustCurrency();
00110 
00111 template <class T>
00112 static DropDownList *BuiltSetDropDownList(int *selected_index)
00113 {
00114   int n = T::GetNumSets();
00115   *selected_index = T::GetIndexOfUsedSet();
00116 
00117   DropDownList *list = new DropDownList();
00118   for (int i = 0; i < n; i++) {
00119     list->push_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, (_game_mode == GM_MENU) ? false : (*selected_index != i)));
00120   }
00121 
00122   return list;
00123 }
00124 
00126 template <class TBaseSet>
00127 struct BaseSetTextfileWindow : public TextfileWindow {
00128   const TBaseSet* baseset; 
00129   StringID content_type;   
00130 
00131   BaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type) : TextfileWindow(file_type), baseset(baseset), content_type(content_type)
00132   {
00133     const char *textfile = this->baseset->GetTextfile(file_type);
00134     this->LoadTextfile(textfile, BASESET_DIR);
00135   }
00136 
00137   /* virtual */ void SetStringParameters(int widget) const
00138   {
00139     if (widget == WID_TF_CAPTION) {
00140       SetDParam(0, content_type);
00141       SetDParamStr(1, this->baseset->name);
00142     }
00143   }
00144 };
00145 
00152 template <class TBaseSet>
00153 void ShowBaseSetTextfileWindow(TextfileType file_type, const TBaseSet* baseset, StringID content_type)
00154 {
00155   DeleteWindowByClass(WC_TEXTFILE);
00156   new BaseSetTextfileWindow<TBaseSet>(file_type, baseset, content_type);
00157 }
00158 
00159 struct GameOptionsWindow : Window {
00160   GameSettings *opt;
00161   bool reload;
00162 
00163   GameOptionsWindow(const WindowDesc *desc) : Window()
00164   {
00165     this->opt = &GetGameSettings();
00166     this->reload = false;
00167 
00168     this->InitNested(desc, WN_GAME_OPTIONS_GAME_OPTIONS);
00169     this->OnInvalidateData(0);
00170   }
00171 
00172   ~GameOptionsWindow()
00173   {
00174     DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
00175     if (this->reload) _switch_mode = SM_MENU;
00176   }
00177 
00184   DropDownList *BuildDropDownList(int widget, int *selected_index) const
00185   {
00186     DropDownList *list = NULL;
00187     switch (widget) {
00188       case WID_GO_CURRENCY_DROPDOWN: { // Setup currencies dropdown
00189         list = new DropDownList();
00190         *selected_index = this->opt->locale.currency;
00191         StringID *items = BuildCurrencyDropdown();
00192         uint disabled = _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies();
00193         int custom_index = -1;
00194 
00195         /* Add non-custom currencies; sorted naturally */
00196         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00197           if (*items == STR_GAME_OPTIONS_CURRENCY_CUSTOM) {
00198             custom_index = i;
00199           } else {
00200             list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
00201           }
00202         }
00203         list->sort(DropDownListStringItem::NatSortFunc);
00204 
00205         /* Append custom currency at the end */
00206         if (custom_index >= 0) {
00207           list->push_back(new DropDownListItem(-1, false)); // separator line
00208           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_CURRENCY_CUSTOM, custom_index, HasBit(disabled, custom_index)));
00209         }
00210         break;
00211       }
00212 
00213       case WID_GO_DISTANCE_DROPDOWN: { // Setup distance unit dropdown
00214         list = new DropDownList();
00215         *selected_index = this->opt->locale.units;
00216         const StringID *items = _units_dropdown;
00217         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00218           list->push_back(new DropDownListStringItem(*items, i, false));
00219         }
00220         break;
00221       }
00222 
00223       case WID_GO_ROADSIDE_DROPDOWN: { // Setup road-side dropdown
00224         list = new DropDownList();
00225         *selected_index = this->opt->vehicle.road_side;
00226         const StringID *items = _driveside_dropdown;
00227         uint disabled = 0;
00228 
00229         /* You can only change the drive side if you are in the menu or ingame with
00230          * no vehicles present. In a networking game only the server can change it */
00231         extern bool RoadVehiclesAreBuilt();
00232         if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server)) {
00233           disabled = ~(1 << this->opt->vehicle.road_side); // disable the other value
00234         }
00235 
00236         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00237           list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
00238         }
00239         break;
00240       }
00241 
00242       case WID_GO_TOWNNAME_DROPDOWN: { // Setup townname dropdown
00243         list = new DropDownList();
00244         *selected_index = this->opt->game_creation.town_name;
00245 
00246         int enabled_item = (_game_mode == GM_MENU || Town::GetNumItems() == 0) ? -1 : *selected_index;
00247 
00248         /* Add and sort original townnames generators */
00249         for (int i = 0; i < _nb_orig_names; i++) {
00250           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + i, i, enabled_item != i && enabled_item >= 0));
00251         }
00252         list->sort(DropDownListStringItem::NatSortFunc);
00253 
00254         /* Add and sort newgrf townnames generators */
00255         DropDownList newgrf_names;
00256         for (int i = 0; i < _nb_grf_names; i++) {
00257           int result = _nb_orig_names + i;
00258           newgrf_names.push_back(new DropDownListStringItem(_grf_names[i], result, enabled_item != result && enabled_item >= 0));
00259         }
00260         newgrf_names.sort(DropDownListStringItem::NatSortFunc);
00261 
00262         /* Insert newgrf_names at the top of the list */
00263         if (newgrf_names.size() > 0) {
00264           newgrf_names.push_back(new DropDownListItem(-1, false)); // separator line
00265           list->splice(list->begin(), newgrf_names);
00266         }
00267         break;
00268       }
00269 
00270       case WID_GO_AUTOSAVE_DROPDOWN: { // Setup autosave dropdown
00271         list = new DropDownList();
00272         *selected_index = _settings_client.gui.autosave;
00273         const StringID *items = _autosave_dropdown;
00274         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
00275           list->push_back(new DropDownListStringItem(*items, i, false));
00276         }
00277         break;
00278       }
00279 
00280       case WID_GO_LANG_DROPDOWN: { // Setup interface language dropdown
00281         list = new DropDownList();
00282         for (uint i = 0; i < _languages.Length(); i++) {
00283           if (&_languages[i] == _current_language) *selected_index = i;
00284           list->push_back(new DropDownListStringItem(SPECSTR_LANGUAGE_START + i, i, false));
00285         }
00286         list->sort(DropDownListStringItem::NatSortFunc);
00287         break;
00288       }
00289 
00290       case WID_GO_RESOLUTION_DROPDOWN: // Setup resolution dropdown
00291         list = new DropDownList();
00292         *selected_index = GetCurRes();
00293         for (int i = 0; i < _num_resolutions; i++) {
00294           list->push_back(new DropDownListStringItem(SPECSTR_RESOLUTION_START + i, i, false));
00295         }
00296         break;
00297 
00298       case WID_GO_SCREENSHOT_DROPDOWN: // Setup screenshot format dropdown
00299         list = new DropDownList();
00300         *selected_index = _cur_screenshot_format;
00301         for (uint i = 0; i < _num_screenshot_formats; i++) {
00302           if (!GetScreenshotFormatSupports_32bpp(i) && BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 32) continue;
00303           list->push_back(new DropDownListStringItem(SPECSTR_SCREENSHOT_START + i, i, false));
00304         }
00305         break;
00306 
00307       case WID_GO_BASE_GRF_DROPDOWN:
00308         list = BuiltSetDropDownList<BaseGraphics>(selected_index);
00309         break;
00310 
00311       case WID_GO_BASE_SFX_DROPDOWN:
00312         list = BuiltSetDropDownList<BaseSounds>(selected_index);
00313         break;
00314 
00315       case WID_GO_BASE_MUSIC_DROPDOWN:
00316         list = BuiltSetDropDownList<BaseMusic>(selected_index);
00317         break;
00318 
00319       default:
00320         return NULL;
00321     }
00322 
00323     return list;
00324   }
00325 
00326   virtual void SetStringParameters(int widget) const
00327   {
00328     switch (widget) {
00329       case WID_GO_CURRENCY_DROPDOWN:   SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
00330       case WID_GO_DISTANCE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL + this->opt->locale.units); break;
00331       case WID_GO_ROADSIDE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT + this->opt->vehicle.road_side); break;
00332       case WID_GO_TOWNNAME_DROPDOWN:   SetDParam(0, TownName(this->opt->game_creation.town_name)); break;
00333       case WID_GO_AUTOSAVE_DROPDOWN:   SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
00334       case WID_GO_LANG_DROPDOWN:       SetDParamStr(0, _current_language->own_name); break;
00335       case WID_GO_RESOLUTION_DROPDOWN: SetDParam(0, GetCurRes() == _num_resolutions ? STR_GAME_OPTIONS_RESOLUTION_OTHER : SPECSTR_RESOLUTION_START + GetCurRes()); break;
00336       case WID_GO_SCREENSHOT_DROPDOWN: SetDParam(0, SPECSTR_SCREENSHOT_START + _cur_screenshot_format); break;
00337       case WID_GO_BASE_GRF_DROPDOWN:   SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
00338       case WID_GO_BASE_GRF_STATUS:     SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
00339       case WID_GO_BASE_SFX_DROPDOWN:   SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
00340       case WID_GO_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
00341       case WID_GO_BASE_MUSIC_STATUS:   SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
00342     }
00343   }
00344 
00345   virtual void DrawWidget(const Rect &r, int widget) const
00346   {
00347     switch (widget) {
00348       case WID_GO_BASE_GRF_DESCRIPTION:
00349         SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00350         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00351         break;
00352 
00353       case WID_GO_BASE_SFX_DESCRIPTION:
00354         SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00355         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00356         break;
00357 
00358       case WID_GO_BASE_MUSIC_DESCRIPTION:
00359         SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
00360         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
00361         break;
00362     }
00363   }
00364 
00365   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00366   {
00367     switch (widget) {
00368       case WID_GO_BASE_GRF_DESCRIPTION:
00369         /* Find the biggest description for the default size. */
00370         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00371           SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00372           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00373         }
00374         break;
00375 
00376       case WID_GO_BASE_GRF_STATUS:
00377         /* Find the biggest description for the default size. */
00378         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
00379           uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
00380           if (invalid_files == 0) continue;
00381 
00382           SetDParam(0, invalid_files);
00383           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
00384         }
00385         break;
00386 
00387       case WID_GO_BASE_SFX_DESCRIPTION:
00388         /* Find the biggest description for the default size. */
00389         for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
00390           SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00391           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00392         }
00393         break;
00394 
00395       case WID_GO_BASE_MUSIC_DESCRIPTION:
00396         /* Find the biggest description for the default size. */
00397         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00398           SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
00399           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
00400         }
00401         break;
00402 
00403       case WID_GO_BASE_MUSIC_STATUS:
00404         /* Find the biggest description for the default size. */
00405         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
00406           uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
00407           if (invalid_files == 0) continue;
00408 
00409           SetDParam(0, invalid_files);
00410           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
00411         }
00412         break;
00413 
00414       default: {
00415         int selected;
00416         DropDownList *list = this->BuildDropDownList(widget, &selected);
00417         if (list != NULL) {
00418           /* Find the biggest item for the default size. */
00419           for (DropDownList::iterator it = list->begin(); it != list->end(); it++) {
00420             static const Dimension extra = {WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT, WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM};
00421             Dimension string_dim;
00422             int width = (*it)->Width();
00423             string_dim.width = width + extra.width;
00424             string_dim.height = (*it)->Height(width) + extra.height;
00425             *size = maxdim(*size, string_dim);
00426             delete *it;
00427           }
00428           delete list;
00429         }
00430       }
00431     }
00432   }
00433 
00434   virtual void OnClick(Point pt, int widget, int click_count)
00435   {
00436     if (widget >= WID_GO_BASE_GRF_TEXTFILE && widget < WID_GO_BASE_GRF_TEXTFILE + TFT_END) {
00437       if (BaseGraphics::GetUsedSet() == NULL) return;
00438 
00439       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_GRF_TEXTFILE), BaseGraphics::GetUsedSet(), STR_CONTENT_TYPE_BASE_GRAPHICS);
00440       return;
00441     }
00442     if (widget >= WID_GO_BASE_SFX_TEXTFILE && widget < WID_GO_BASE_SFX_TEXTFILE + TFT_END) {
00443       if (BaseSounds::GetUsedSet() == NULL) return;
00444 
00445       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_SFX_TEXTFILE), BaseSounds::GetUsedSet(), STR_CONTENT_TYPE_BASE_SOUNDS);
00446       return;
00447     }
00448     if (widget >= WID_GO_BASE_MUSIC_TEXTFILE && widget < WID_GO_BASE_MUSIC_TEXTFILE + TFT_END) {
00449       if (BaseMusic::GetUsedSet() == NULL) return;
00450 
00451       ShowBaseSetTextfileWindow((TextfileType)(widget - WID_GO_BASE_MUSIC_TEXTFILE), BaseMusic::GetUsedSet(), STR_CONTENT_TYPE_BASE_MUSIC);
00452       return;
00453     }
00454     switch (widget) {
00455       case WID_GO_FULLSCREEN_BUTTON: // Click fullscreen on/off
00456         /* try to toggle full-screen on/off */
00457         if (!ToggleFullScreen(!_fullscreen)) {
00458           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
00459         }
00460         this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00461         this->SetDirty();
00462         break;
00463 
00464       default: {
00465         int selected;
00466         DropDownList *list = this->BuildDropDownList(widget, &selected);
00467         if (list != NULL) {
00468           ShowDropDownList(this, list, selected, widget);
00469         }
00470         break;
00471       }
00472     }
00473   }
00474 
00480   template <class T>
00481   void SetMediaSet(int index)
00482   {
00483     if (_game_mode == GM_MENU) {
00484       const char *name = T::GetSet(index)->name;
00485 
00486       free(T::ini_set);
00487       T::ini_set = strdup(name);
00488 
00489       T::SetSet(name);
00490       this->reload = true;
00491       this->InvalidateData();
00492     }
00493   }
00494 
00495   virtual void OnDropdownSelect(int widget, int index)
00496   {
00497     switch (widget) {
00498       case WID_GO_CURRENCY_DROPDOWN: // Currency
00499         if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();
00500         this->opt->locale.currency = index;
00501         ReInitAllWindows();
00502         break;
00503 
00504       case WID_GO_DISTANCE_DROPDOWN: // Measuring units
00505         this->opt->locale.units = index;
00506         MarkWholeScreenDirty();
00507         break;
00508 
00509       case WID_GO_ROADSIDE_DROPDOWN: // Road side
00510         if (this->opt->vehicle.road_side != index) { // only change if setting changed
00511           uint i;
00512           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
00513           SetSettingValue(i, index);
00514           MarkWholeScreenDirty();
00515         }
00516         break;
00517 
00518       case WID_GO_TOWNNAME_DROPDOWN: // Town names
00519         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
00520           this->opt->game_creation.town_name = index;
00521           SetWindowDirty(WC_GAME_OPTIONS, WN_GAME_OPTIONS_GAME_OPTIONS);
00522         }
00523         break;
00524 
00525       case WID_GO_AUTOSAVE_DROPDOWN: // Autosave options
00526         _settings_client.gui.autosave = index;
00527         this->SetDirty();
00528         break;
00529 
00530       case WID_GO_LANG_DROPDOWN: // Change interface language
00531         ReadLanguagePack(&_languages[index]);
00532         DeleteWindowByClass(WC_QUERY_STRING);
00533         CheckForMissingGlyphs();
00534         UpdateAllVirtCoords();
00535         ReInitAllWindows();
00536         break;
00537 
00538       case WID_GO_RESOLUTION_DROPDOWN: // Change resolution
00539         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
00540           this->SetDirty();
00541         }
00542         break;
00543 
00544       case WID_GO_SCREENSHOT_DROPDOWN: // Change screenshot format
00545         SetScreenshotFormat(index);
00546         this->SetDirty();
00547         break;
00548 
00549       case WID_GO_BASE_GRF_DROPDOWN:
00550         this->SetMediaSet<BaseGraphics>(index);
00551         break;
00552 
00553       case WID_GO_BASE_SFX_DROPDOWN:
00554         this->SetMediaSet<BaseSounds>(index);
00555         break;
00556 
00557       case WID_GO_BASE_MUSIC_DROPDOWN:
00558         this->SetMediaSet<BaseMusic>(index);
00559         break;
00560     }
00561   }
00562 
00568   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00569   {
00570     if (!gui_scope) return;
00571     this->SetWidgetLoweredState(WID_GO_FULLSCREEN_BUTTON, _fullscreen);
00572 
00573     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
00574     this->GetWidget<NWidgetCore>(WID_GO_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
00575 
00576     for (TextfileType tft = TFT_BEGIN; tft < TFT_END; tft++) {
00577       this->SetWidgetDisabledState(WID_GO_BASE_GRF_TEXTFILE + tft, BaseGraphics::GetUsedSet() == NULL || BaseGraphics::GetUsedSet()->GetTextfile(tft) == NULL);
00578       this->SetWidgetDisabledState(WID_GO_BASE_SFX_TEXTFILE + tft, BaseSounds::GetUsedSet() == NULL || BaseSounds::GetUsedSet()->GetTextfile(tft) == NULL);
00579       this->SetWidgetDisabledState(WID_GO_BASE_MUSIC_TEXTFILE + tft, BaseMusic::GetUsedSet() == NULL || BaseMusic::GetUsedSet()->GetTextfile(tft) == NULL);
00580     }
00581 
00582     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
00583     this->GetWidget<NWidgetCore>(WID_GO_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
00584   }
00585 };
00586 
00587 static const NWidgetPart _nested_game_options_widgets[] = {
00588   NWidget(NWID_HORIZONTAL),
00589     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
00590     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00591   EndContainer(),
00592   NWidget(WWT_PANEL, COLOUR_GREY, WID_GO_BACKGROUND), SetPIP(6, 6, 10),
00593     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
00594       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00595         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
00596           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_CURRENCY_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00597         EndContainer(),
00598         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
00599           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_ROADSIDE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00600         EndContainer(),
00601         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
00602           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
00603         EndContainer(),
00604         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
00605           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_RESOLUTION_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP), SetFill(1, 0), SetPadding(0, 0, 3, 0),
00606           NWidget(NWID_HORIZONTAL),
00607             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
00608             NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_GO_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
00609           EndContainer(),
00610         EndContainer(),
00611       EndContainer(),
00612 
00613       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
00614         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
00615           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_DISTANCE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_MEASURING_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
00616         EndContainer(),
00617         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
00618           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_TOWNNAME_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_TOWN_NAMES_DROPDOWN_TOOLTIP), SetFill(1, 0),
00619         EndContainer(),
00620         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
00621           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
00622         EndContainer(),
00623         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
00624           NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_SCREENSHOT_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_SCREENSHOT_FORMAT_TOOLTIP), SetFill(1, 0),
00625         EndContainer(),
00626         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
00627       EndContainer(),
00628     EndContainer(),
00629 
00630     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
00631       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00632         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
00633         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00634       EndContainer(),
00635       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_GRF_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_GRF_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00636       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00637         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00638         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00639         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_GRF_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00640       EndContainer(),
00641     EndContainer(),
00642 
00643     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
00644       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00645         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
00646         NWidget(NWID_SPACER), SetFill(1, 0),
00647       EndContainer(),
00648       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_SFX_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_SFX_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00649       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00650         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00651         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00652         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_SFX_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00653       EndContainer(),
00654     EndContainer(),
00655 
00656     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
00657       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
00658         NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_GO_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
00659         NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
00660       EndContainer(),
00661       NWidget(WWT_TEXT, COLOUR_GREY, WID_GO_BASE_MUSIC_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 6, 0),
00662       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(7, 0, 7),
00663         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_README), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_README, STR_NULL),
00664         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_CHANGELOG), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_CHANGELOG, STR_NULL),
00665         NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_GO_BASE_MUSIC_TEXTFILE + TFT_LICENSE), SetFill(1, 0), SetResize(1, 0), SetDataTip(STR_TEXTFILE_VIEW_LICENCE, STR_NULL),
00666       EndContainer(),
00667     EndContainer(),
00668   EndContainer(),
00669 };
00670 
00671 static const WindowDesc _game_options_desc(
00672   WDP_CENTER, 0, 0,
00673   WC_GAME_OPTIONS, WC_NONE,
00674   WDF_UNCLICK_BUTTONS,
00675   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
00676 );
00677 
00679 void ShowGameOptions()
00680 {
00681   DeleteWindowByClass(WC_GAME_OPTIONS);
00682   new GameOptionsWindow(&_game_options_desc);
00683 }
00684 
00685 extern void StartupEconomy();
00686 
00687 void SetDifficultyLevel(int mode, DifficultySettings *gm_opt);
00688 
00689 class GameDifficultyWindow : public Window {
00690 private:
00691   /* Temporary holding place of values in the difficulty window until 'Save' is clicked */
00692   GameSettings opt_mod_temp;
00693 
00694 public:
00696   static const uint GAME_DIFFICULTY_NUM = 18;
00698   static const uint WIDGETS_PER_DIFFICULTY = 3;
00699 
00700   GameDifficultyWindow(const WindowDesc *desc) : Window()
00701   {
00702     this->InitNested(desc, WN_GAME_OPTIONS_GAME_DIFFICULTY);
00703 
00704     /* Setup disabled buttons when creating window
00705      * disable all other difficulty buttons during gameplay except for 'custom' */
00706     this->SetWidgetsDisabledState(_game_mode != GM_MENU,
00707       WID_GD_LVL_EASY,
00708       WID_GD_LVL_MEDIUM,
00709       WID_GD_LVL_HARD,
00710       WID_GD_LVL_CUSTOM,
00711       WIDGET_LIST_END);
00712     this->SetWidgetDisabledState(WID_GD_HIGHSCORE, _game_mode == GM_EDITOR || _networking); // highscore chart in multiplayer
00713     this->SetWidgetDisabledState(WID_GD_ACCEPT, _networking && !_network_server); // Save-button in multiplayer (and if client)
00714 
00715     /* Read data */
00716     this->OnInvalidateData(GOID_DIFFICULTY_CHANGED);
00717   }
00718 
00719   virtual void SetStringParameters(int widget) const
00720   {
00721     widget -= WID_GD_OPTIONS_START;
00722     if (widget < 0 || (widget % 3) != 2) return;
00723 
00724     widget /= 3;
00725 
00726     uint i;
00727     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + widget;
00728     int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00729     SetDParam(0, sd->desc.str_val + value);
00730   }
00731 
00732   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
00733   {
00734     /* Only for the 'descriptions' */
00735     int index = widget - WID_GD_OPTIONS_START;
00736     if (index < 0 || (index % 3) != 2) return;
00737 
00738     index /= 3;
00739 
00740     uint i;
00741     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + index;
00742     const SettingDescBase *sdb = &sd->desc;
00743 
00744     /* Get the string and try all strings from the smallest to the highest value */
00745     StringID str = this->GetWidget<NWidgetCore>(widget)->widget_data;
00746     for (int32 value = sdb->min; (uint32)value <= sdb->max; value += sdb->interval) {
00747       SetDParam(0, sdb->str_val + value);
00748       *size = maxdim(*size, GetStringBoundingBox(str));
00749     }
00750   }
00751 
00752   virtual void OnClick(Point pt, int widget, int click_count)
00753   {
00754     if (widget >= WID_GD_OPTIONS_START) {
00755       widget -= WID_GD_OPTIONS_START;
00756       if ((widget % 3) == 2) return;
00757 
00758       /* Don't allow clients to make any changes */
00759       if (_networking && !_network_server) return;
00760 
00761       uint i;
00762       const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + (widget / 3);
00763       const SettingDescBase *sdb = &sd->desc;
00764 
00765       int32 val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00766       if (widget % 3 == 1) {
00767         /* Increase button clicked */
00768         val = min(val + sdb->interval, (int32)sdb->max);
00769       } else {
00770         /* Decrease button clicked */
00771         val -= sdb->interval;
00772         val = max(val, sdb->min);
00773       }
00774 
00775       /* save value in temporary variable */
00776       WriteValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv, val);
00777       this->RaiseWidget(WID_GD_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00778       SetDifficultyLevel(3, &this->opt_mod_temp.difficulty); // set difficulty level to custom
00779       this->LowerWidget(WID_GD_LVL_CUSTOM);
00780       this->InvalidateData();
00781 
00782       if (widget / 3 == 0 &&
00783           AI::GetInfoList()->size() == 0 &&
00784           this->opt_mod_temp.difficulty.max_no_competitors != 0) {
00785         ShowErrorMessage(STR_WARNING_NO_SUITABLE_AI, INVALID_STRING_ID, WL_CRITICAL);
00786       }
00787       return;
00788     }
00789 
00790     switch (widget) {
00791       case WID_GD_LVL_EASY:
00792       case WID_GD_LVL_MEDIUM:
00793       case WID_GD_LVL_HARD:
00794       case WID_GD_LVL_CUSTOM:
00795         /* temporarily change difficulty level */
00796         this->RaiseWidget(WID_GD_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00797         SetDifficultyLevel(widget - WID_GD_LVL_EASY, &this->opt_mod_temp.difficulty);
00798         this->LowerWidget(WID_GD_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00799         this->InvalidateData();
00800         break;
00801 
00802       case WID_GD_HIGHSCORE: // Highscore Table
00803         ShowHighscoreTable(this->opt_mod_temp.difficulty.diff_level, -1);
00804         break;
00805 
00806       case WID_GD_ACCEPT: { // Save button - save changes
00807         GameSettings *opt_ptr = &GetGameSettings();
00808 
00809         uint i;
00810         GetSettingFromName("difficulty.diff_level", &i);
00811         DoCommandP(0, i, this->opt_mod_temp.difficulty.diff_level, CMD_CHANGE_SETTING);
00812 
00813         const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00814         for (uint btn = 0; btn != GAME_DIFFICULTY_NUM; btn++, sd++) {
00815           int32 new_val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00816           int32 cur_val = (int32)ReadValue(GetVariableAddress(opt_ptr, &sd->save), sd->save.conv);
00817           /* if setting has changed, change it */
00818           if (new_val != cur_val) {
00819             DoCommandP(0, i + btn, new_val, CMD_CHANGE_SETTING);
00820           }
00821         }
00822         delete this;
00823         /* If we are in the editor, we should reload the economy.
00824          * This way when you load a game, the max loan and interest rate
00825          * are loaded correctly. */
00826         if (_game_mode == GM_EDITOR) StartupEconomy();
00827         break;
00828       }
00829 
00830       case WID_GD_CANCEL: // Cancel button - close window, abandon changes
00831         delete this;
00832         break;
00833     }
00834   }
00835 
00841   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
00842   {
00843     if (!gui_scope) return;
00844 
00845     if (data == GOID_DIFFICULTY_CHANGED) {
00846       /* Window was created or settings were changed on server. Reread everything. */
00847 
00848       /* Copy current settings (ingame or in intro) to temporary holding place
00849        * change that when setting stuff, copy back on clicking 'OK' */
00850       this->opt_mod_temp = GetGameSettings();
00851 
00852       this->LowerWidget(WID_GD_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
00853     }
00854 
00855     uint i;
00856     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00857     for (i = 0; i < GAME_DIFFICULTY_NUM; i++, sd++) {
00858       const SettingDescBase *sdb = &sd->desc;
00859       /* skip deprecated difficulty options */
00860       if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
00861       int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
00862       bool disable = (sd->desc.flags & SGF_NEWGAME_ONLY) &&
00863           (_game_mode == GM_NORMAL ||
00864           (_game_mode == GM_EDITOR && (sd->desc.flags & SGF_SCENEDIT_TOO) == 0));
00865 
00866       this->SetWidgetDisabledState(WID_GD_OPTIONS_START + i * 3 + 0, disable || sdb->min == value);
00867       this->SetWidgetDisabledState(WID_GD_OPTIONS_START + i * 3 + 1, disable || sdb->max == (uint32)value);
00868     }
00869   }
00870 };
00871 
00872 static NWidgetBase *MakeDifficultyOptionsWidgets(int *biggest_index)
00873 {
00874   NWidgetVertical *vert_desc = new NWidgetVertical;
00875 
00876   int widnum = WID_GD_OPTIONS_START;
00877   uint i, j;
00878   const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
00879 
00880   for (i = 0, j = 0; i < GameDifficultyWindow::GAME_DIFFICULTY_NUM; i++, sd++, widnum += GameDifficultyWindow::WIDGETS_PER_DIFFICULTY) {
00881     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
00882 
00883     NWidgetHorizontal *hor = new NWidgetHorizontal;
00884 
00885     /* [<] button. */
00886     NWidgetLeaf *leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum, AWV_DECREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
00887     hor->Add(leaf);
00888 
00889     /* [>] button. */
00890     leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum + 1, AWV_INCREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
00891     hor->Add(leaf);
00892 
00893     /* Some spacing between the text and the description */
00894     NWidgetSpacer *spacer = new NWidgetSpacer(5, 0);
00895     hor->Add(spacer);
00896 
00897     /* Descriptive text. */
00898     leaf = new NWidgetLeaf(WWT_TEXT, COLOUR_YELLOW, widnum + 2, STR_DIFFICULTY_LEVEL_SETTING_MAXIMUM_NO_COMPETITORS + (j++), STR_NULL);
00899     leaf->SetFill(1, 0);
00900     hor->Add(leaf);
00901     vert_desc->Add(hor);
00902 
00903     /* Space vertically */
00904     vert_desc->Add(new NWidgetSpacer(0, 2));
00905   }
00906   *biggest_index = widnum - 1;
00907   return vert_desc;
00908 }
00909 
00910 
00912 static const NWidgetPart _nested_game_difficulty_widgets[] = {
00913   NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_DIFFICULTY_LEVEL_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
00914   NWidget(WWT_PANEL, COLOUR_MAUVE),
00915     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
00916       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
00917         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, WID_GD_LVL_EASY), SetDataTip(STR_DIFFICULTY_LEVEL_EASY, STR_NULL), SetFill(1, 0),
00918         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, WID_GD_LVL_MEDIUM), SetDataTip(STR_DIFFICULTY_LEVEL_MEDIUM, STR_NULL), SetFill(1, 0),
00919         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, WID_GD_LVL_HARD), SetDataTip(STR_DIFFICULTY_LEVEL_HARD, STR_NULL), SetFill(1, 0),
00920         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, WID_GD_LVL_CUSTOM), SetDataTip(STR_DIFFICULTY_LEVEL_CUSTOM, STR_NULL), SetFill(1, 0),
00921       EndContainer(),
00922       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 10),
00923         NWidget(WWT_PUSHTXTBTN, COLOUR_GREEN, WID_GD_HIGHSCORE), SetDataTip(STR_DIFFICULTY_LEVEL_HIGH_SCORE_BUTTON, STR_NULL), SetFill(1, 0),
00924       EndContainer(),
00925     EndContainer(),
00926   EndContainer(),
00927   NWidget(WWT_PANEL, COLOUR_MAUVE),
00928     NWidget(NWID_VERTICAL), SetPIP(3, 0, 1),
00929       NWidget(NWID_HORIZONTAL), SetPIP(5, 0, 5),
00930         NWidgetFunction(MakeDifficultyOptionsWidgets),
00931       EndContainer(),
00932     EndContainer(),
00933   EndContainer(),
00934   NWidget(WWT_PANEL, COLOUR_MAUVE),
00935     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
00936       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
00937         NWidget(NWID_SPACER), SetFill(1, 0),
00938         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_GD_ACCEPT), SetDataTip(STR_DIFFICULTY_LEVEL_SAVE, STR_NULL), SetFill(1, 0),
00939         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_GD_CANCEL), SetDataTip(STR_BUTTON_CANCEL, STR_NULL), SetFill(1, 0),
00940         NWidget(NWID_SPACER), SetFill(1, 0),
00941       EndContainer(),
00942     EndContainer(),
00943   EndContainer(),
00944 };
00945 
00947 static const WindowDesc _game_difficulty_desc(
00948   WDP_CENTER, 0, 0,
00949   WC_GAME_OPTIONS, WC_NONE,
00950   WDF_UNCLICK_BUTTONS,
00951   _nested_game_difficulty_widgets, lengthof(_nested_game_difficulty_widgets)
00952 );
00953 
00955 void ShowGameDifficulty()
00956 {
00957   DeleteWindowByClass(WC_GAME_OPTIONS);
00958   new GameDifficultyWindow(&_game_difficulty_desc);
00959 }
00960 
00961 static int SETTING_HEIGHT = 11;    
00962 static const int LEVEL_WIDTH = 15; 
00963 
00968 enum SettingEntryFlags {
00969   SEF_LEFT_DEPRESSED  = 0x01, 
00970   SEF_RIGHT_DEPRESSED = 0x02, 
00971   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED), 
00972 
00973   SEF_LAST_FIELD = 0x04, 
00974   SEF_FILTERED   = 0x08, 
00975 
00976   /* Entry kind */
00977   SEF_SETTING_KIND = 0x10, 
00978   SEF_SUBTREE_KIND = 0x20, 
00979   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND), 
00980 };
00981 
00982 struct SettingsPage; // Forward declaration
00983 
00985 struct SettingEntrySubtree {
00986   SettingsPage *page; 
00987   bool folded;        
00988   StringID title;     
00989 };
00990 
00992 struct SettingEntrySetting {
00993   const char *name;           
00994   const SettingDesc *setting; 
00995   uint index;                 
00996 };
00997 
00999 enum RestrictionMode {
01000   RM_BASIC,                            
01001   RM_ADVANCED,                         
01002   RM_ALL,                              
01003   RM_CHANGED_AGAINST_DEFAULT,          
01004   RM_CHANGED_AGAINST_DEFAULT_WO_LOCAL, 
01005   RM_CHANGED_AGAINST_NEW,              
01006   RM_END,                              
01007 };
01008 
01010 struct SettingEntry {
01011   byte flags; 
01012   byte level; 
01013   union {
01014     SettingEntrySetting entry; 
01015     SettingEntrySubtree sub;   
01016   } d; 
01017 
01018   SettingEntry(const char *nm);
01019   SettingEntry(SettingsPage *sub, StringID title);
01020 
01021   void Init(byte level);
01022   void FoldAll();
01023   void UnFoldAll();
01024   void SetButtons(byte new_val);
01025 
01030   void SetLastField(bool last_field) { if (last_field) SETBITS(this->flags, SEF_LAST_FIELD); else CLRBITS(this->flags, SEF_LAST_FIELD); }
01031 
01032   uint Length() const;
01033   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
01034   bool IsVisible(const SettingEntry *item) const;
01035   SettingEntry *FindEntry(uint row, uint *cur_row);
01036   uint GetMaxHelpHeight(int maxw);
01037 
01038   bool IsFiltered() const;
01039   bool UpdateFilterState(StringFilter &filter, bool force_visible, RestrictionMode mode);
01040 
01041   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);
01042 
01047   inline StringID GetHelpText()
01048   {
01049     assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01050     return this->d.entry.setting->desc.str_help;
01051   }
01052 
01053   void SetValueDParams(uint first_param, int32 value);
01054 
01055 private:
01056   void DrawSetting(GameSettings *settings_ptr, int x, int y, int max_x, int state, bool highlight);
01057   bool IsVisibleByRestrictionMode(RestrictionMode mode) const;
01058 };
01059 
01061 struct SettingsPage {
01062   SettingEntry *entries; 
01063   byte num;              
01064 
01065   void Init(byte level = 0);
01066   void FoldAll();
01067   void UnFoldAll();
01068 
01069   uint Length() const;
01070   void GetFoldingState(bool &all_folded, bool &all_unfolded) const;
01071   bool IsVisible(const SettingEntry *item) const;
01072   SettingEntry *FindEntry(uint row, uint *cur_row) const;
01073   uint GetMaxHelpHeight(int maxw);
01074 
01075   bool UpdateFilterState(StringFilter &filter, bool force_visible, RestrictionMode mode);
01076 
01077   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;
01078 };
01079 
01080 
01081 /* == SettingEntry methods == */
01082 
01087 SettingEntry::SettingEntry(const char *nm)
01088 {
01089   this->flags = SEF_SETTING_KIND;
01090   this->level = 0;
01091   this->d.entry.name = nm;
01092   this->d.entry.setting = NULL;
01093   this->d.entry.index = 0;
01094 }
01095 
01101 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
01102 {
01103   this->flags = SEF_SUBTREE_KIND;
01104   this->level = 0;
01105   this->d.sub.page = sub;
01106   this->d.sub.folded = true;
01107   this->d.sub.title = title;
01108 }
01109 
01114 void SettingEntry::Init(byte level)
01115 {
01116   this->level = level;
01117 
01118   switch (this->flags & SEF_KIND_MASK) {
01119     case SEF_SETTING_KIND:
01120       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
01121       assert(this->d.entry.setting != NULL);
01122       break;
01123     case SEF_SUBTREE_KIND:
01124       this->d.sub.page->Init(level + 1);
01125       break;
01126     default: NOT_REACHED();
01127   }
01128 }
01129 
01131 void SettingEntry::FoldAll()
01132 {
01133   if (this->IsFiltered()) return;
01134   switch (this->flags & SEF_KIND_MASK) {
01135     case SEF_SETTING_KIND:
01136       break;
01137 
01138     case SEF_SUBTREE_KIND:
01139       this->d.sub.folded = true;
01140       this->d.sub.page->FoldAll();
01141       break;
01142 
01143     default: NOT_REACHED();
01144   }
01145 }
01146 
01148 void SettingEntry::UnFoldAll()
01149 {
01150   if (this->IsFiltered()) return;
01151   switch (this->flags & SEF_KIND_MASK) {
01152     case SEF_SETTING_KIND:
01153       break;
01154 
01155     case SEF_SUBTREE_KIND:
01156       this->d.sub.folded = false;
01157       this->d.sub.page->UnFoldAll();
01158       break;
01159 
01160     default: NOT_REACHED();
01161   }
01162 }
01163 
01169 void SettingEntry::GetFoldingState(bool &all_folded, bool &all_unfolded) const
01170 {
01171   if (this->IsFiltered()) return;
01172   switch (this->flags & SEF_KIND_MASK) {
01173     case SEF_SETTING_KIND:
01174       break;
01175 
01176     case SEF_SUBTREE_KIND:
01177       if (this->d.sub.folded) {
01178         all_unfolded = false;
01179       } else {
01180         all_folded = false;
01181       }
01182       this->d.sub.page->GetFoldingState(all_folded, all_unfolded);
01183       break;
01184 
01185     default: NOT_REACHED();
01186   }
01187 }
01188 
01195 bool SettingEntry::IsVisible(const SettingEntry *item) const
01196 {
01197   if (this->IsFiltered()) return false;
01198   if (this == item) return true;
01199 
01200   switch (this->flags & SEF_KIND_MASK) {
01201     case SEF_SETTING_KIND:
01202       return false;
01203 
01204     case SEF_SUBTREE_KIND:
01205       return !this->d.sub.folded && this->d.sub.page->IsVisible(item);
01206 
01207     default: NOT_REACHED();
01208   }
01209 }
01210 
01216 void SettingEntry::SetButtons(byte new_val)
01217 {
01218   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
01219   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
01220 }
01221 
01223 uint SettingEntry::Length() const
01224 {
01225   if (this->IsFiltered()) return 0;
01226   switch (this->flags & SEF_KIND_MASK) {
01227     case SEF_SETTING_KIND:
01228       return 1;
01229     case SEF_SUBTREE_KIND:
01230       if (this->d.sub.folded) return 1; // Only displaying the title
01231 
01232       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
01233     default: NOT_REACHED();
01234   }
01235 }
01236 
01243 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
01244 {
01245   if (this->IsFiltered()) return NULL;
01246   if (row_num == *cur_row) return this;
01247 
01248   switch (this->flags & SEF_KIND_MASK) {
01249     case SEF_SETTING_KIND:
01250       (*cur_row)++;
01251       break;
01252     case SEF_SUBTREE_KIND:
01253       (*cur_row)++; // add one for row containing the title
01254       if (this->d.sub.folded) {
01255         break;
01256       }
01257 
01258       /* sub-page is visible => search it too */
01259       return this->d.sub.page->FindEntry(row_num, cur_row);
01260     default: NOT_REACHED();
01261   }
01262   return NULL;
01263 }
01264 
01270 uint SettingEntry::GetMaxHelpHeight(int maxw)
01271 {
01272   switch (this->flags & SEF_KIND_MASK) {
01273     case SEF_SETTING_KIND: return GetStringHeight(this->GetHelpText(), maxw);
01274     case SEF_SUBTREE_KIND: return this->d.sub.page->GetMaxHelpHeight(maxw);
01275     default:               NOT_REACHED();
01276   }
01277 }
01278 
01283 bool SettingEntry::IsFiltered() const
01284 {
01285   return (this->flags & SEF_FILTERED) != 0;
01286 }
01287 
01293 bool SettingEntry::IsVisibleByRestrictionMode(RestrictionMode mode) const
01294 {
01295   /* There shall not be any restriction, i.e. all settings shall be visible. */
01296   if (mode == RM_ALL) return true;
01297 
01298   GameSettings *settings_ptr = &GetGameSettings();
01299   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01300   const SettingDesc *sd = this->d.entry.setting;
01301 
01302   if (mode == RM_CHANGED_AGAINST_DEFAULT_WO_LOCAL && (sd->save.conv & SLF_NO_NETWORK_SYNC) != 0) {
01303     /* Hide local settings when comparing our settings against those of the server. */
01304     return false;
01305   }
01306 
01307   if (mode == RM_BASIC) return (this->d.entry.setting->desc.cat & SC_BASIC_LIST) != 0;
01308   if (mode == RM_ADVANCED) return (this->d.entry.setting->desc.cat & SC_ADVANCED_LIST) != 0;
01309 
01310   /* Read the current value. */
01311   const void *var = ResolveVariableAddress(settings_ptr, sd);
01312   int64 current_value = ReadValue(var, sd->save.conv);
01313 
01314   int64 filter_value;
01315 
01316   if (mode == RM_CHANGED_AGAINST_DEFAULT || mode == RM_CHANGED_AGAINST_DEFAULT_WO_LOCAL) {
01317     /* This entry shall only be visible, if the value deviates from its default value. */
01318 
01319     /* Read the default value. */
01320     filter_value = ReadValue(&sd->desc.def, sd->save.conv);
01321   } else {
01322     assert(mode == RM_CHANGED_AGAINST_NEW);
01323     /* This entry shall only be visible, if the value deviates from
01324      * its value is used when starting a new game. */
01325 
01326     /* Make sure we're not comparing the new game settings against itself. */
01327     assert(settings_ptr != &_settings_newgame);
01328 
01329     /* Read the new game's value. */
01330     var = ResolveVariableAddress(&_settings_newgame, sd);
01331     filter_value = ReadValue(var, sd->save.conv);
01332   }
01333 
01334   return current_value != filter_value;
01335 }
01336 
01344 bool SettingEntry::UpdateFilterState(StringFilter &filter, bool force_visible, RestrictionMode mode)
01345 {
01346   CLRBITS(this->flags, SEF_FILTERED);
01347 
01348   bool visible = true;
01349   switch (this->flags & SEF_KIND_MASK) {
01350     case SEF_SETTING_KIND: {
01351       if (!force_visible && !filter.IsEmpty()) {
01352         /* Process the search text filter for this item. */
01353         filter.ResetState();
01354 
01355         const SettingDesc *sd = this->d.entry.setting;
01356         const SettingDescBase *sdb = &sd->desc;
01357 
01358         SetDParam(0, STR_EMPTY);
01359         filter.AddLine(sdb->str);
01360         filter.AddLine(this->GetHelpText());
01361 
01362         visible = filter.GetState();
01363       }
01364       visible = visible && this->IsVisibleByRestrictionMode(mode);
01365       break;
01366     }
01367     case SEF_SUBTREE_KIND: {
01368       if (!force_visible && !filter.IsEmpty()) {
01369         filter.ResetState();
01370         filter.AddLine(this->d.sub.title);
01371         force_visible = filter.GetState();
01372       }
01373       visible = this->d.sub.page->UpdateFilterState(filter, force_visible, mode);
01374       break;
01375     }
01376     default: NOT_REACHED();
01377   }
01378 
01379   if (!visible) SETBITS(this->flags, SEF_FILTERED);
01380   return visible;
01381 }
01382 
01383 
01384 
01412 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)
01413 {
01414   if (this->IsFiltered()) return cur_row;
01415   if (cur_row >= max_row) return cur_row;
01416 
01417   bool rtl = _current_text_dir == TD_RTL;
01418   int offset = rtl ? -4 : 4;
01419   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
01420 
01421   int x = rtl ? right : left;
01422   int y = base_y;
01423   if (cur_row >= first_row) {
01424     int colour = _colour_gradient[COLOUR_ORANGE][4];
01425     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
01426 
01427     /* Draw vertical for parent nesting levels */
01428     for (uint lvl = 0; lvl < this->level; lvl++) {
01429       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
01430       x += level_width;
01431     }
01432     /* draw own |- prefix */
01433     int halfway_y = y + SETTING_HEIGHT / 2;
01434     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
01435     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
01436     /* Small horizontal line from the last vertical line */
01437     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
01438     x += level_width;
01439   }
01440 
01441   switch (this->flags & SEF_KIND_MASK) {
01442     case SEF_SETTING_KIND:
01443       if (cur_row >= first_row) {
01444         this->DrawSetting(settings_ptr, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK,
01445             this == selected);
01446       }
01447       cur_row++;
01448       break;
01449     case SEF_SUBTREE_KIND:
01450       if (cur_row >= first_row) {
01451         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
01452         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
01453       }
01454       cur_row++;
01455       if (!this->d.sub.folded) {
01456         if (this->flags & SEF_LAST_FIELD) {
01457           assert(this->level < sizeof(parent_last));
01458           SetBit(parent_last, this->level); // Add own last-field state
01459         }
01460 
01461         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, selected, cur_row, parent_last);
01462       }
01463       break;
01464     default: NOT_REACHED();
01465   }
01466   return cur_row;
01467 }
01468 
01469 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
01470 {
01471   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
01472     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
01473       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
01474     } else {
01475       return GetVariableAddress(&_settings_client.company, &sd->save);
01476     }
01477   } else {
01478     return GetVariableAddress(settings_ptr, &sd->save);
01479   }
01480 }
01481 
01487 void SettingEntry::SetValueDParams(uint first_param, int32 value)
01488 {
01489   assert((this->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
01490   const SettingDescBase *sdb = &this->d.entry.setting->desc;
01491   if (sdb->cmd == SDT_BOOLX) {
01492     SetDParam(first_param++, value != 0 ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
01493   } else {
01494     if ((sdb->flags & SGF_MULTISTRING) != 0) {
01495       SetDParam(first_param++, sdb->str_val - sdb->min + value);
01496     } else if ((sdb->flags & SGF_DISPLAY_ABS) != 0) {
01497       SetDParam(first_param++, sdb->str_val + ((value >= 0) ? 1 : 0));
01498       value = abs(value);
01499     } else {
01500       SetDParam(first_param++, sdb->str_val + ((value == 0 && (sdb->flags & SGF_0ISDISABLED) != 0) ? 1 : 0));
01501     }
01502     SetDParam(first_param++, value);
01503   }
01504 }
01505 
01515 void SettingEntry::DrawSetting(GameSettings *settings_ptr, int left, int right, int y, int state, bool highlight)
01516 {
01517   const SettingDesc *sd = this->d.entry.setting;
01518   const SettingDescBase *sdb = &sd->desc;
01519   const void *var = ResolveVariableAddress(settings_ptr, sd);
01520   bool editable = true;
01521 
01522   bool rtl = _current_text_dir == TD_RTL;
01523   uint buttons_left = rtl ? right + 1 - SETTING_BUTTON_WIDTH : left;
01524   uint text_left  = left + (rtl ? 0 : SETTING_BUTTON_WIDTH + 5);
01525   uint text_right = right - (rtl ? SETTING_BUTTON_WIDTH + 5 : 0);
01526   uint button_y = y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
01527 
01528   /* We do not allow changes of some items when we are a client in a networkgame */
01529   if (!(sd->save.conv & SLF_NO_NETWORK_SYNC) && _networking && !_network_server && !(sdb->flags & SGF_PER_COMPANY)) editable = false;
01530   if ((sdb->flags & SGF_NETWORK_ONLY) && !_networking) editable = false;
01531   if ((sdb->flags & SGF_NO_NETWORK) && _networking) editable = false;
01532 
01533   SetDParam(0, highlight ? STR_ORANGE_STRING1_WHITE : STR_ORANGE_STRING1_LTBLUE);
01534   int32 value = (int32)ReadValue(var, sd->save.conv);
01535   if (sdb->cmd == SDT_BOOLX) {
01536     /* Draw checkbox for boolean-value either on/off */
01537     DrawBoolButton(buttons_left, button_y, value != 0, editable);
01538   } else if ((sdb->flags & SGF_MULTISTRING) != 0) {
01539     /* Draw [v] button for settings of an enum-type */
01540     DrawDropDownButton(buttons_left, button_y, COLOUR_YELLOW, state != 0, editable);
01541   } else {
01542     /* Draw [<][>] boxes for settings of an integer-type */
01543     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state,
01544         editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
01545   }
01546   this->SetValueDParams(1, value);
01547   DrawString(text_left, text_right, y, sdb->str, highlight ? TC_WHITE : TC_LIGHT_BLUE);
01548 }
01549 
01550 
01551 /* == SettingsPage methods == */
01552 
01557 void SettingsPage::Init(byte level)
01558 {
01559   for (uint field = 0; field < this->num; field++) {
01560     this->entries[field].Init(level);
01561   }
01562 }
01563 
01565 void SettingsPage::FoldAll()
01566 {
01567   for (uint field = 0; field < this->num; field++) {
01568     this->entries[field].FoldAll();
01569   }
01570 }
01571 
01573 void SettingsPage::UnFoldAll()
01574 {
01575   for (uint field = 0; field < this->num; field++) {
01576     this->entries[field].UnFoldAll();
01577   }
01578 }
01579 
01585 void SettingsPage::GetFoldingState(bool &all_folded, bool &all_unfolded) const
01586 {
01587   for (uint field = 0; field < this->num; field++) {
01588     this->entries[field].GetFoldingState(all_folded, all_unfolded);
01589   }
01590 }
01591 
01599 bool SettingsPage::UpdateFilterState(StringFilter &filter, bool force_visible, RestrictionMode mode)
01600 {
01601   bool visible = false;
01602   bool first_visible = true;
01603   for (int field = this->num - 1; field >= 0; field--) {
01604     visible |= this->entries[field].UpdateFilterState(filter, force_visible, mode);
01605     this->entries[field].SetLastField(first_visible);
01606     if (visible && first_visible) first_visible = false;
01607   }
01608   return visible;
01609 }
01610 
01611 
01618 bool SettingsPage::IsVisible(const SettingEntry *item) const
01619 {
01620   for (uint field = 0; field < this->num; field++) {
01621     if (this->entries[field].IsVisible(item)) return true;
01622   }
01623   return false;
01624 }
01625 
01627 uint SettingsPage::Length() const
01628 {
01629   uint length = 0;
01630   for (uint field = 0; field < this->num; field++) {
01631     length += this->entries[field].Length();
01632   }
01633   return length;
01634 }
01635 
01642 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
01643 {
01644   SettingEntry *pe = NULL;
01645 
01646   for (uint field = 0; field < this->num; field++) {
01647     pe = this->entries[field].FindEntry(row_num, cur_row);
01648     if (pe != NULL) {
01649       break;
01650     }
01651   }
01652   return pe;
01653 }
01654 
01660 uint SettingsPage::GetMaxHelpHeight(int maxw)
01661 {
01662   uint biggest = 0;
01663   for (uint field = 0; field < this->num; field++) {
01664     biggest = max(biggest, this->entries[field].GetMaxHelpHeight(maxw));
01665   }
01666   return biggest;
01667 }
01668 
01687 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
01688 {
01689   if (cur_row >= max_row) return cur_row;
01690 
01691   for (uint i = 0; i < this->num; i++) {
01692     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last, selected);
01693     if (cur_row >= max_row) {
01694       break;
01695     }
01696   }
01697   return cur_row;
01698 }
01699 
01700 
01701 static SettingEntry _settings_ui_display[] = {
01702   SettingEntry("gui.date_format_in_default_names"),
01703   SettingEntry("gui.population_in_label"),
01704   SettingEntry("gui.measure_tooltip"),
01705   SettingEntry("gui.loading_indicators"),
01706   SettingEntry("gui.liveries"),
01707   SettingEntry("gui.show_track_reservation"),
01708   SettingEntry("gui.expenses_layout"),
01709   SettingEntry("gui.smallmap_land_colour"),
01710   SettingEntry("gui.zoom_min"),
01711   SettingEntry("gui.zoom_max"),
01712   SettingEntry("gui.graph_line_thickness"),
01713 };
01715 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
01716 
01717 static SettingEntry _settings_ui_interaction[] = {
01718   SettingEntry("gui.window_snap_radius"),
01719   SettingEntry("gui.window_soft_limit"),
01720   SettingEntry("gui.link_terraform_toolbar"),
01721   SettingEntry("gui.prefer_teamchat"),
01722   SettingEntry("gui.auto_scrolling"),
01723   SettingEntry("gui.reverse_scroll"),
01724   SettingEntry("gui.smooth_scroll"),
01725   SettingEntry("gui.left_mouse_btn_scrolling"),
01726   /* While the horizontal scrollwheel scrolling is written as general code, only
01727    *  the cocoa (OSX) driver generates input for it.
01728    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
01729   SettingEntry("gui.scrollwheel_scrolling"),
01730   SettingEntry("gui.scrollwheel_multiplier"),
01731 #ifdef __APPLE__
01732   /* We might need to emulate a right mouse button on mac */
01733   SettingEntry("gui.right_mouse_btn_emulation"),
01734 #endif
01735 };
01737 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
01738 
01739 static SettingEntry _settings_ui[] = {
01740   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
01741   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
01742   SettingEntry("gui.show_finances"),
01743   SettingEntry("gui.errmsg_duration"),
01744   SettingEntry("gui.hover_delay"),
01745   SettingEntry("gui.toolbar_pos"),
01746   SettingEntry("gui.statusbar_pos"),
01747   SettingEntry("gui.newgrf_default_palette"),
01748   SettingEntry("gui.pause_on_newgame"),
01749   SettingEntry("gui.advanced_vehicle_list"),
01750   SettingEntry("gui.timetable_in_ticks"),
01751   SettingEntry("gui.timetable_arrival_departure"),
01752   SettingEntry("gui.quick_goto"),
01753   SettingEntry("gui.default_rail_type"),
01754   SettingEntry("gui.disable_unsuitable_building"),
01755   SettingEntry("gui.persistent_buildingtools"),
01756   SettingEntry("gui.coloured_news_year"),
01757 };
01759 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
01760 
01761 static SettingEntry _settings_construction_signals[] = {
01762   SettingEntry("construction.train_signal_side"),
01763   SettingEntry("gui.enable_signal_gui"),
01764   SettingEntry("gui.drag_signals_fixed_distance"),
01765   SettingEntry("gui.semaphore_build_before"),
01766   SettingEntry("gui.default_signal_type"),
01767   SettingEntry("gui.cycle_signal_types"),
01768 };
01770 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
01771 
01772 static SettingEntry _settings_construction[] = {
01773   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
01774   SettingEntry("construction.build_on_slopes"),
01775   SettingEntry("construction.autoslope"),
01776   SettingEntry("construction.extra_dynamite"),
01777   SettingEntry("construction.max_bridge_length"),
01778   SettingEntry("construction.max_tunnel_length"),
01779   SettingEntry("station.never_expire_airports"),
01780   SettingEntry("construction.freeform_edges"),
01781   SettingEntry("construction.extra_tree_placement"),
01782   SettingEntry("construction.command_pause_level"),
01783 };
01785 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
01786 
01787 static SettingEntry _settings_stations_cargo[] = {
01788   SettingEntry("order.improved_load"),
01789   SettingEntry("order.gradual_loading"),
01790   SettingEntry("order.selectgoods"),
01791 };
01793 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
01794 
01795 static SettingEntry _settings_stations[] = {
01796   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
01797   SettingEntry("station.adjacent_stations"),
01798   SettingEntry("station.distant_join_stations"),
01799   SettingEntry("station.station_spread"),
01800   SettingEntry("economy.station_noise_level"),
01801   SettingEntry("station.modified_catchment"),
01802   SettingEntry("construction.road_stop_on_town_road"),
01803   SettingEntry("construction.road_stop_on_competitor_road"),
01804 };
01806 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
01807 
01808 static SettingEntry _settings_economy_towns[] = {
01809   SettingEntry("economy.bribe"),
01810   SettingEntry("economy.exclusive_rights"),
01811   SettingEntry("economy.fund_roads"),
01812   SettingEntry("economy.fund_buildings"),
01813   SettingEntry("economy.town_layout"),
01814   SettingEntry("economy.allow_town_roads"),
01815   SettingEntry("economy.allow_town_level_crossings"),
01816   SettingEntry("economy.found_town"),
01817   SettingEntry("economy.mod_road_rebuild"),
01818   SettingEntry("economy.town_growth_rate"),
01819   SettingEntry("economy.larger_towns"),
01820   SettingEntry("economy.initial_city_size"),
01821 };
01823 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
01824 
01825 static SettingEntry _settings_economy_industries[] = {
01826   SettingEntry("construction.raw_industry_construction"),
01827   SettingEntry("construction.industry_platform"),
01828   SettingEntry("economy.multiple_industry_per_town"),
01829   SettingEntry("game_creation.oil_refinery_limit"),
01830 };
01832 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
01833 
01834 static SettingEntry _settings_economy_scripts[] = {
01835   SettingEntry("script.script_max_opcode_till_suspend"),
01836 };
01838 static SettingsPage _settings_economy_scripts_page = {_settings_economy_scripts, lengthof(_settings_economy_scripts)};
01839 
01840 static SettingEntry _settings_economy[] = {
01841   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
01842   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
01843   SettingEntry(&_settings_economy_scripts_page, STR_CONFIG_SETTING_ECONOMY_SCRIPTS),
01844   SettingEntry("economy.inflation"),
01845   SettingEntry("economy.smooth_economy"),
01846   SettingEntry("economy.feeder_payment_share"),
01847   SettingEntry("economy.infrastructure_maintenance"),
01848 };
01850 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
01851 
01852 static SettingEntry _settings_linkgraph[] = {
01853   SettingEntry("linkgraph.recalc_interval"),
01854   SettingEntry("linkgraph.distribution_pax"),
01855   SettingEntry("linkgraph.distribution_mail"),
01856   SettingEntry("linkgraph.distribution_armoured"),
01857   SettingEntry("linkgraph.distribution_default"),
01858   SettingEntry("linkgraph.accuracy"),
01859   SettingEntry("linkgraph.demand_distance"),
01860   SettingEntry("linkgraph.demand_size"),
01861   SettingEntry("linkgraph.short_path_saturation"),
01862 };
01864 static SettingsPage _settings_linkgraph_page = {_settings_linkgraph, lengthof(_settings_linkgraph)};
01865 
01866 static SettingEntry _settings_ai_npc[] = {
01867   SettingEntry("ai.ai_in_multiplayer"),
01868   SettingEntry("ai.ai_disable_veh_train"),
01869   SettingEntry("ai.ai_disable_veh_roadveh"),
01870   SettingEntry("ai.ai_disable_veh_aircraft"),
01871   SettingEntry("ai.ai_disable_veh_ship"),
01872 };
01874 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
01875 
01876 static SettingEntry _settings_ai[] = {
01877   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
01878   SettingEntry("economy.give_money"),
01879   SettingEntry("economy.allow_shares"),
01880 };
01882 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
01883 
01884 static SettingEntry _settings_vehicles_routing[] = {
01885   SettingEntry("pf.pathfinder_for_trains"),
01886   SettingEntry("pf.forbid_90_deg"),
01887   SettingEntry("pf.pathfinder_for_roadvehs"),
01888   SettingEntry("pf.roadveh_queue"),
01889   SettingEntry("pf.pathfinder_for_ships"),
01890 };
01892 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
01893 
01894 static SettingEntry _settings_vehicles_autorenew[] = {
01895   SettingEntry("company.engine_renew"),
01896   SettingEntry("company.engine_renew_months"),
01897   SettingEntry("company.engine_renew_money"),
01898 };
01900 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
01901 
01902 static SettingEntry _settings_vehicles_servicing[] = {
01903   SettingEntry("vehicle.servint_ispercent"),
01904   SettingEntry("vehicle.servint_trains"),
01905   SettingEntry("vehicle.servint_roadveh"),
01906   SettingEntry("vehicle.servint_ships"),
01907   SettingEntry("vehicle.servint_aircraft"),
01908   SettingEntry("order.no_servicing_if_no_breakdowns"),
01909   SettingEntry("order.serviceathelipad"),
01910 };
01912 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
01913 
01914 static SettingEntry _settings_vehicles_trains[] = {
01915   SettingEntry("pf.reverse_at_signals"),
01916   SettingEntry("vehicle.train_acceleration_model"),
01917   SettingEntry("vehicle.train_slope_steepness"),
01918   SettingEntry("vehicle.max_train_length"),
01919   SettingEntry("vehicle.wagon_speed_limits"),
01920   SettingEntry("vehicle.disable_elrails"),
01921   SettingEntry("vehicle.freight_trains"),
01922   SettingEntry("gui.stop_location"),
01923 };
01925 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
01926 
01927 static SettingEntry _settings_vehicles[] = {
01928   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
01929   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
01930   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
01931   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
01932   SettingEntry("gui.new_nonstop"),
01933   SettingEntry("gui.order_review_system"),
01934   SettingEntry("gui.vehicle_income_warn"),
01935   SettingEntry("gui.lost_vehicle_warn"),
01936   SettingEntry("vehicle.never_expire_vehicles"),
01937   SettingEntry("vehicle.max_trains"),
01938   SettingEntry("vehicle.max_roadveh"),
01939   SettingEntry("vehicle.max_aircraft"),
01940   SettingEntry("vehicle.max_ships"),
01941   SettingEntry("vehicle.plane_speed"),
01942   SettingEntry("vehicle.plane_crashes"),
01943   SettingEntry("vehicle.dynamic_engines"),
01944   SettingEntry("vehicle.roadveh_acceleration_model"),
01945   SettingEntry("vehicle.roadveh_slope_steepness"),
01946   SettingEntry("vehicle.smoke_amount"),
01947 };
01949 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
01950 
01951 static SettingEntry _settings_main[] = {
01952   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
01953   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
01954   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
01955   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
01956   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
01957   SettingEntry(&_settings_linkgraph_page,    STR_CONFIG_SETTING_LINKGRAPH),
01958   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
01959 };
01960 
01962 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
01963 
01964 static const StringID _game_settings_restrict_dropdown[] = {
01965   STR_CONFIG_SETTING_RESTRICT_BASIC,                            // RM_BASIC
01966   STR_CONFIG_SETTING_RESTRICT_ADVANCED,                         // RM_ADVANCED
01967   STR_CONFIG_SETTING_RESTRICT_ALL,                              // RM_ALL
01968   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_DEFAULT,          // RM_CHANGED_AGAINST_DEFAULT
01969   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_DEFAULT_WO_LOCAL, // RM_CHANGED_AGAINST_DEFAULT_WO_LOCAL
01970   STR_CONFIG_SETTING_RESTRICT_CHANGED_AGAINST_NEW,              // RM_CHANGED_AGAINST_NEW
01971 };
01972 assert_compile(lengthof(_game_settings_restrict_dropdown) == RM_END);
01973 
01974 struct GameSettingsWindow : QueryStringBaseWindow {
01975   static const int SETTINGTREE_LEFT_OFFSET   = 5; 
01976   static const int SETTINGTREE_RIGHT_OFFSET  = 5; 
01977   static const int SETTINGTREE_TOP_OFFSET    = 5; 
01978   static const int SETTINGTREE_BOTTOM_OFFSET = 5; 
01979 
01980   static GameSettings *settings_ptr; 
01981 
01982   SettingEntry *valuewindow_entry;   
01983   SettingEntry *clicked_entry;       
01984   SettingEntry *last_clicked;        
01985   SettingEntry *valuedropdown_entry; 
01986   bool closing_dropdown;             
01987 
01988   StringFilter string_filter;        
01989   bool manually_changed_folding;     
01990 
01991   RestrictionMode cur_restriction_mode; 
01992 
01993   Scrollbar *vscroll;
01994 
01995   GameSettingsWindow(const WindowDesc *desc) : QueryStringBaseWindow(50), cur_restriction_mode((RestrictionMode)_settings_client.gui.settings_restriction_mode)
01996   {
01997     static bool first_time = true;
01998 
01999     settings_ptr = &GetGameSettings();
02000 
02001     /* Build up the dynamic settings-array only once per OpenTTD session */
02002     if (first_time) {
02003       _settings_main_page.Init();
02004       first_time = false;
02005     } else {
02006       _settings_main_page.FoldAll(); // Close all sub-pages
02007     }
02008 
02009     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
02010     this->clicked_entry = NULL; // No numeric setting buttons are depressed
02011     this->last_clicked = NULL;
02012     this->valuedropdown_entry = NULL;
02013     this->closing_dropdown = false;
02014     this->manually_changed_folding = false;
02015 
02016     this->CreateNestedTree(desc);
02017     this->vscroll = this->GetScrollbar(WID_GS_SCROLLBAR);
02018     this->FinishInitNested(desc, WN_GAME_OPTIONS_GAME_SETTINGS);
02019 
02020     this->text.Initialize(this->edit_str_buf, this->edit_str_size);
02021     this->SetFocusedWidget(WID_GS_FILTER);
02022 
02023     this->InvalidateData();
02024   }
02025 
02026   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
02027   {
02028     switch (widget) {
02029       case WID_GS_OPTIONSPANEL:
02030         resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
02031         resize->width  = 1;
02032 
02033         size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
02034         break;
02035 
02036       case WID_GS_HELP_TEXT: {
02037         static const StringID setting_types[] = {
02038           STR_CONFIG_SETTING_TYPE_CLIENT,
02039           STR_CONFIG_SETTING_TYPE_COMPANY_MENU, STR_CONFIG_SETTING_TYPE_COMPANY_INGAME,
02040           STR_CONFIG_SETTING_TYPE_GAME_MENU, STR_CONFIG_SETTING_TYPE_GAME_INGAME,
02041         };
02042         for (uint i = 0; i < lengthof(setting_types); i++) {
02043           SetDParam(0, setting_types[i]);
02044           size->width = max(size->width, GetStringBoundingBox(STR_CONFIG_SETTING_TYPE).width);
02045         }
02046         size->height = 2 * FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL +
02047             max(size->height, _settings_main_page.GetMaxHelpHeight(size->width));
02048         break;
02049       }
02050 
02051       default:
02052         break;
02053     }
02054   }
02055 
02056   virtual void OnPaint()
02057   {
02058     if (this->closing_dropdown) {
02059       this->closing_dropdown = false;
02060       assert(this->valuedropdown_entry != NULL);
02061       this->valuedropdown_entry->SetButtons(0);
02062       this->valuedropdown_entry = NULL;
02063     }
02064     this->DrawWidgets();
02065     this->DrawEditBox(WID_GS_FILTER);
02066   }
02067 
02068   virtual void SetStringParameters(int widget) const
02069   {
02070     switch (widget) {
02071       case WID_GS_RESTRICT_DROPDOWN:
02072         SetDParam(0, _game_settings_restrict_dropdown[this->cur_restriction_mode]);
02073         break;
02074     }
02075   }
02076 
02077   DropDownList *BuildDropDownList(int widget) const
02078   {
02079     DropDownList *list = NULL;
02080     switch (widget) {
02081       case WID_GS_RESTRICT_DROPDOWN:
02082         list = new DropDownList();
02083 
02084         for (int mode = 0; mode != RM_END; mode++) {
02085           /* If we are in adv. settings screen for the new game's settings,
02086            * we don't want to allow comparing with new game's settings. */
02087           bool disabled = mode == RM_CHANGED_AGAINST_NEW && settings_ptr == &_settings_newgame;
02088 
02089           list->push_back(new DropDownListStringItem(_game_settings_restrict_dropdown[mode], mode, disabled));
02090         }
02091         break;
02092     }
02093     return list;
02094   }
02095 
02096   virtual void DrawWidget(const Rect &r, int widget) const
02097   {
02098     switch (widget) {
02099       case WID_GS_OPTIONSPANEL:
02100         _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
02101             this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity(), this->last_clicked);
02102         break;
02103 
02104       case WID_GS_HELP_TEXT:
02105         if (this->last_clicked != NULL) {
02106           const SettingDesc *sd = this->last_clicked->d.entry.setting;
02107 
02108           int y = r.top;
02109           if (sd->desc.flags & SGF_PER_COMPANY) {
02110             SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_COMPANY_MENU : STR_CONFIG_SETTING_TYPE_COMPANY_INGAME);
02111           } else if (sd->save.conv & SLF_NOT_IN_SAVE) {
02112             SetDParam(0, STR_CONFIG_SETTING_TYPE_CLIENT);
02113           } else {
02114             SetDParam(0, _game_mode == GM_MENU ? STR_CONFIG_SETTING_TYPE_GAME_MENU : STR_CONFIG_SETTING_TYPE_GAME_INGAME);
02115           }
02116           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_TYPE);
02117           y += FONT_HEIGHT_NORMAL;
02118 
02119           int32 default_value = ReadValue(&sd->desc.def, sd->save.conv);
02120           this->last_clicked->SetValueDParams(0, default_value);
02121           DrawString(r.left, r.right, y, STR_CONFIG_SETTING_DEFAULT_VALUE);
02122           y += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
02123 
02124           DrawStringMultiLine(r.left, r.right, y, r.bottom, this->last_clicked->GetHelpText(), TC_WHITE);
02125         }
02126         break;
02127 
02128       default:
02129         break;
02130     }
02131   }
02132 
02137   void SetDisplayedHelpText(SettingEntry *pe)
02138   {
02139     if (this->last_clicked != pe) this->SetDirty();
02140     this->last_clicked = pe;
02141   }
02142 
02143   virtual void OnClick(Point pt, int widget, int click_count)
02144   {
02145     switch (widget) {
02146       case WID_GS_EXPAND_ALL:
02147         this->manually_changed_folding = true;
02148         _settings_main_page.UnFoldAll();
02149         this->InvalidateData();
02150         break;
02151 
02152       case WID_GS_COLLAPSE_ALL:
02153         this->manually_changed_folding = true;
02154         _settings_main_page.FoldAll();
02155         this->InvalidateData();
02156         break;
02157 
02158       case WID_GS_RESTRICT_DROPDOWN: {
02159         DropDownList *list = this->BuildDropDownList(widget);
02160         if (list != NULL) {
02161           ShowDropDownList(this, list, this->cur_restriction_mode, widget);
02162         }
02163       }
02164     }
02165 
02166     if (widget != WID_GS_OPTIONSPANEL) return;
02167 
02168     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET);
02169     if (btn == INT_MAX) return;
02170 
02171     uint cur_row = 0;
02172     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
02173 
02174     if (pe == NULL) return;  // Clicked below the last setting of the page
02175 
02176     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
02177     if (x < 0) return;  // Clicked left of the entry
02178 
02179     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
02180       this->SetDisplayedHelpText(NULL);
02181       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
02182 
02183       this->manually_changed_folding = true;
02184 
02185       this->InvalidateData();
02186       return;
02187     }
02188 
02189     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
02190     const SettingDesc *sd = pe->d.entry.setting;
02191 
02192     /* return if action is only active in network, or only settable by server */
02193     if ((!(sd->save.conv & SLF_NO_NETWORK_SYNC) && _networking && !_network_server && !(sd->desc.flags & SGF_PER_COMPANY)) ||
02194         ((sd->desc.flags & SGF_NETWORK_ONLY) && !_networking) || ((sd->desc.flags & SGF_NO_NETWORK) && _networking)) {
02195       this->SetDisplayedHelpText(pe);
02196       return;
02197     }
02198 
02199     const void *var = ResolveVariableAddress(settings_ptr, sd);
02200     int32 value = (int32)ReadValue(var, sd->save.conv);
02201 
02202     /* clicked on the icon on the left side. Either scroller, bool on/off or dropdown */
02203     if (x < SETTING_BUTTON_WIDTH && (sd->desc.flags & SGF_MULTISTRING)) {
02204       const SettingDescBase *sdb = &sd->desc;
02205       this->SetDisplayedHelpText(pe);
02206 
02207       if (this->valuedropdown_entry == pe) {
02208         /* unclick the dropdown */
02209         HideDropDownMenu(this);
02210         this->closing_dropdown = false;
02211         this->valuedropdown_entry->SetButtons(0);
02212         this->valuedropdown_entry = NULL;
02213       } else {
02214         if (this->valuedropdown_entry != NULL) this->valuedropdown_entry->SetButtons(0);
02215         this->closing_dropdown = false;
02216 
02217         const NWidgetBase *wid = this->GetWidget<NWidgetBase>(WID_GS_OPTIONSPANEL);
02218         int rel_y = (pt.y - (int)wid->pos_y - SETTINGTREE_TOP_OFFSET) % wid->resize_y;
02219 
02220         Rect wi_rect;
02221         wi_rect.left = pt.x - (_current_text_dir == TD_RTL ? SETTING_BUTTON_WIDTH - 1 - x : x);
02222         wi_rect.right = wi_rect.left + SETTING_BUTTON_WIDTH - 1;
02223         wi_rect.top = pt.y - rel_y + (SETTING_HEIGHT - SETTING_BUTTON_HEIGHT) / 2;
02224         wi_rect.bottom = wi_rect.top + SETTING_BUTTON_HEIGHT - 1;
02225 
02226         /* For dropdowns we also have to check the y position thoroughly, the mouse may not above the just opening dropdown */
02227         if (pt.y >= wi_rect.top && pt.y <= wi_rect.bottom) {
02228           this->valuedropdown_entry = pe;
02229           this->valuedropdown_entry->SetButtons(SEF_LEFT_DEPRESSED);
02230 
02231           DropDownList *list = new DropDownList();
02232           for (int i = sdb->min; i <= (int)sdb->max; i++) {
02233             list->push_back(new DropDownListStringItem(sdb->str_val + i - sdb->min, i, false));
02234           }
02235 
02236           ShowDropDownListAt(this, list, value, -1, wi_rect, COLOUR_ORANGE, true);
02237         }
02238       }
02239       this->SetDirty();
02240     } else if (x < SETTING_BUTTON_WIDTH) {
02241       this->SetDisplayedHelpText(pe);
02242       const SettingDescBase *sdb = &sd->desc;
02243       int32 oldvalue = value;
02244 
02245       switch (sdb->cmd) {
02246         case SDT_BOOLX: value ^= 1; break;
02247         case SDT_ONEOFMANY:
02248         case SDT_NUMX: {
02249           /* Add a dynamic step-size to the scroller. In a maximum of
02250            * 50-steps you should be able to get from min to max,
02251            * unless specified otherwise in the 'interval' variable
02252            * of the current setting. */
02253           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
02254           if (step == 0) step = 1;
02255 
02256           /* don't allow too fast scrolling */
02257           if ((this->flags & WF_TIMEOUT) && this->timeout_timer > 1) {
02258             _left_button_clicked = false;
02259             return;
02260           }
02261 
02262           /* Increase or decrease the value and clamp it to extremes */
02263           if (x >= SETTING_BUTTON_WIDTH / 2) {
02264             value += step;
02265             if (sdb->min < 0) {
02266               assert((int32)sdb->max >= 0);
02267               if (value > (int32)sdb->max) value = (int32)sdb->max;
02268             } else {
02269               if ((uint32)value > sdb->max) value = (int32)sdb->max;
02270             }
02271             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
02272           } else {
02273             value -= step;
02274             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
02275           }
02276 
02277           /* Set up scroller timeout for numeric values */
02278           if (value != oldvalue) {
02279             if (this->clicked_entry != NULL) { // Release previous buttons if any
02280               this->clicked_entry->SetButtons(0);
02281             }
02282             this->clicked_entry = pe;
02283             this->clicked_entry->SetButtons((x >= SETTING_BUTTON_WIDTH / 2) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
02284             this->SetTimeout();
02285             _left_button_clicked = false;
02286           }
02287           break;
02288         }
02289 
02290         default: NOT_REACHED();
02291       }
02292 
02293       if (value != oldvalue) {
02294         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02295           SetCompanySetting(pe->d.entry.index, value);
02296         } else {
02297           SetSettingValue(pe->d.entry.index, value);
02298         }
02299         this->SetDirty();
02300       }
02301     } else {
02302       /* Only open editbox if clicked for the second time, and only for types where it is sensible for. */
02303       if (this->last_clicked == pe && sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
02304         /* Show the correct currency-translated value */
02305         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
02306 
02307         this->valuewindow_entry = pe;
02308         SetDParam(0, value);
02309         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
02310       }
02311       this->SetDisplayedHelpText(pe);
02312     }
02313   }
02314 
02315   virtual void OnTimeout()
02316   {
02317     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
02318       this->clicked_entry->SetButtons(0);
02319       this->clicked_entry = NULL;
02320       this->SetDirty();
02321     }
02322   }
02323 
02324   virtual void OnQueryTextFinished(char *str)
02325   {
02326     /* The user pressed cancel */
02327     if (str == NULL) return;
02328 
02329     assert(this->valuewindow_entry != NULL);
02330     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
02331     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
02332 
02333     int32 value;
02334     if (!StrEmpty(str)) {
02335       value = atoi(str);
02336 
02337       /* Save the correct currency-translated value */
02338       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
02339     } else {
02340       value = (int32)(size_t)sd->desc.def;
02341     }
02342 
02343     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02344       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
02345     } else {
02346       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
02347     }
02348     this->SetDirty();
02349   }
02350 
02351   virtual void OnDropdownSelect(int widget, int index)
02352   {
02353     if (widget == WID_GS_RESTRICT_DROPDOWN) {
02354       this->cur_restriction_mode = (RestrictionMode)index;
02355       if (this->cur_restriction_mode == RM_CHANGED_AGAINST_DEFAULT ||
02356           this->cur_restriction_mode == RM_CHANGED_AGAINST_DEFAULT_WO_LOCAL ||
02357           this->cur_restriction_mode == RM_CHANGED_AGAINST_NEW) {
02358 
02359         if (!this->manually_changed_folding) {
02360           /* Expand all when selecting 'changes'. Update the filter state first, in case it becomes less restrictive in some cases. */
02361           _settings_main_page.UpdateFilterState(string_filter, false, this->cur_restriction_mode);
02362           _settings_main_page.UnFoldAll();
02363         }
02364       } else {
02365         /* Non-'changes' filter. Save as default. */
02366         _settings_client.gui.settings_restriction_mode = this->cur_restriction_mode;
02367       }
02368       this->InvalidateData();
02369       return;
02370     }
02371 
02372     /* Deal with drop down boxes on the panel. */
02373     assert(this->valuedropdown_entry != NULL);
02374     const SettingDesc *sd = this->valuedropdown_entry->d.entry.setting;
02375     assert(sd->desc.flags & SGF_MULTISTRING);
02376 
02377     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
02378       SetCompanySetting(this->valuedropdown_entry->d.entry.index, index);
02379     } else {
02380       SetSettingValue(this->valuedropdown_entry->d.entry.index, index);
02381     }
02382 
02383     this->SetDirty();
02384   }
02385 
02386   virtual void OnDropdownClose(Point pt, int widget, int index, bool instant_close)
02387   {
02388     if (widget == WID_GS_RESTRICT_DROPDOWN) {
02389       /* Normally the default implementation of OnDropdownClose() takes care of
02390        * a few things. We want that behaviour here too, but only for this one
02391        * "normal" dropdown box. The special dropdown boxes added for every
02392        * setting that needs one can't have this call. */
02393       Window::OnDropdownClose(pt, widget, index, instant_close);
02394       return;
02395     }
02396 
02397     /* We cannot raise the dropdown button just yet. OnClick needs some hint, whether
02398      * the same dropdown button was clicked again, and then not open the dropdown again.
02399      * So, we only remember that it was closed, and process it on the next OnPaint, which is
02400      * after OnClick. */
02401     assert(this->valuedropdown_entry != NULL);
02402     this->closing_dropdown = true;
02403     this->SetDirty();
02404   }
02405 
02406   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
02407   {
02408     if (!gui_scope) return;
02409 
02410     _settings_main_page.UpdateFilterState(string_filter, false, this->cur_restriction_mode);
02411 
02412     this->vscroll->SetCount(_settings_main_page.Length());
02413 
02414     if (this->last_clicked != NULL && !_settings_main_page.IsVisible(this->last_clicked)) {
02415       this->SetDisplayedHelpText(NULL);
02416     }
02417 
02418     bool all_folded = true;
02419     bool all_unfolded = true;
02420     _settings_main_page.GetFoldingState(all_folded, all_unfolded);
02421     this->SetWidgetDisabledState(WID_GS_EXPAND_ALL, all_unfolded);
02422     this->SetWidgetDisabledState(WID_GS_COLLAPSE_ALL, all_folded);
02423   }
02424 
02425   virtual void OnMouseLoop()
02426   {
02427     this->HandleEditBox(WID_GS_FILTER);
02428   }
02429 
02430   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
02431   {
02432     /* Handle editbox input */
02433     EventState state = ES_NOT_HANDLED;
02434     if (this->HandleEditBoxKey(WID_GS_FILTER, key, keycode, state) == HEBR_EDITING) {
02435       this->OnOSKInput(WID_GS_FILTER);
02436     }
02437     return state;
02438   }
02439 
02440   virtual void OnOSKInput(int wid)
02441   {
02442     string_filter.SetFilterTerm(this->edit_str_buf);
02443     if (!string_filter.IsEmpty() && !this->manually_changed_folding) {
02444       /* User never expanded/collapsed single pages and entered a filter term.
02445        * Expand everything, to save weird expand clicks, */
02446       _settings_main_page.UnFoldAll();
02447     }
02448     this->InvalidateData();
02449   }
02450 
02451   virtual void OnResize()
02452   {
02453     this->vscroll->SetCapacityFromWidget(this, WID_GS_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
02454   }
02455 };
02456 
02457 GameSettings *GameSettingsWindow::settings_ptr = NULL;
02458 
02459 static const NWidgetPart _nested_settings_selection_widgets[] = {
02460   NWidget(NWID_HORIZONTAL),
02461     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
02462     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02463   EndContainer(),
02464   NWidget(WWT_PANEL, COLOUR_MAUVE),
02465     NWidget(NWID_HORIZONTAL), SetPadding(WD_TEXTPANEL_TOP, 0, WD_TEXTPANEL_BOTTOM, 0),
02466         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02467       NWidget(WWT_TEXT, COLOUR_MAUVE, WID_GS_RESTRICT_LABEL), SetDataTip(STR_CONFIG_SETTING_RESTRICT_LABEL, STR_NULL),
02468       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),
02469     EndContainer(),
02470     NWidget(NWID_HORIZONTAL), SetPadding(0, 0, WD_TEXTPANEL_BOTTOM, 0),
02471         SetPIP(WD_FRAMETEXT_LEFT, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_RIGHT),
02472       NWidget(WWT_TEXT, COLOUR_MAUVE), SetFill(0, 1), SetDataTip(STR_CONFIG_SETTING_FILTER_TITLE, STR_NULL),
02473       NWidget(WWT_EDITBOX, COLOUR_MAUVE, WID_GS_FILTER), SetFill(1, 0), SetMinimalSize(50, 12), SetResize(1, 0),
02474           SetDataTip(STR_LIST_FILTER_OSKTITLE, STR_LIST_FILTER_TOOLTIP),
02475     EndContainer(),
02476   EndContainer(),
02477   NWidget(NWID_HORIZONTAL),
02478     NWidget(WWT_PANEL, COLOUR_MAUVE, WID_GS_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(WID_GS_SCROLLBAR), EndContainer(),
02479     NWidget(NWID_VERTICAL),
02480       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, WID_GS_SCROLLBAR),
02481     EndContainer(),
02482   EndContainer(),
02483   NWidget(WWT_PANEL, COLOUR_MAUVE), SetMinimalSize(400, 40),
02484     NWidget(WWT_EMPTY, INVALID_COLOUR, WID_GS_HELP_TEXT), SetMinimalSize(300, 25), SetFill(1, 1), SetResize(1, 0),
02485         SetPadding(WD_FRAMETEXT_TOP, WD_FRAMETEXT_RIGHT, WD_FRAMETEXT_BOTTOM, WD_FRAMETEXT_LEFT),
02486     NWidget(NWID_HORIZONTAL),
02487       NWidget(WWT_PANEL, COLOUR_MAUVE),
02488         NWidget(NWID_HORIZONTAL),
02489           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_EXPAND_ALL), SetDataTip(STR_CONFIG_SETTING_EXPAND_ALL, STR_NULL),
02490           NWidget(WWT_PUSHTXTBTN, COLOUR_MAUVE, WID_GS_COLLAPSE_ALL), SetDataTip(STR_CONFIG_SETTING_COLLAPSE_ALL, STR_NULL),
02491           NWidget(NWID_SPACER, INVALID_COLOUR), SetFill(1, 1), SetResize(1, 0),
02492         EndContainer(),
02493       EndContainer(),
02494       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
02495     EndContainer(),
02496   EndContainer(),
02497 };
02498 
02499 static const WindowDesc _settings_selection_desc(
02500   WDP_CENTER, 510, 450,
02501   WC_GAME_OPTIONS, WC_NONE,
02502   WDF_UNCLICK_BUTTONS,
02503   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
02504 );
02505 
02507 void ShowGameSettings()
02508 {
02509   DeleteWindowByClass(WC_GAME_OPTIONS);
02510   new GameSettingsWindow(&_settings_selection_desc);
02511 }
02512 
02513 
02523 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
02524 {
02525   int colour = _colour_gradient[button_colour][2];
02526 
02527   DrawFrameRect(x,                            y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
02528   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);
02529   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
02530   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + SETTING_BUTTON_WIDTH / 2, y + WD_IMGBTN_TOP);
02531 
02532   /* Grey out the buttons that aren't clickable */
02533   bool rtl = _current_text_dir == TD_RTL;
02534   if (rtl ? !clickable_right : !clickable_left) {
02535     GfxFillRect(x                            + 1, y, x + SETTING_BUTTON_WIDTH / 2 - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02536   }
02537   if (rtl ? !clickable_left : !clickable_right) {
02538     GfxFillRect(x + SETTING_BUTTON_WIDTH / 2 + 1, y, x + SETTING_BUTTON_WIDTH     - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02539   }
02540 }
02541 
02550 void DrawDropDownButton(int x, int y, Colours button_colour, bool state, bool clickable)
02551 {
02552   static const char *DOWNARROW = "\xEE\x8A\xAA";
02553 
02554   int colour = _colour_gradient[button_colour][2];
02555 
02556   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, button_colour, state ? FR_LOWERED : FR_NONE);
02557   DrawString(x + (state ? 1 : 0), x + SETTING_BUTTON_WIDTH - (state ? 0 : 1), y + (state ? 2 : 1), DOWNARROW, TC_BLACK, SA_HOR_CENTER);
02558 
02559   if (!clickable) {
02560     GfxFillRect(x +  1, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 2, colour, FILLRECT_CHECKER);
02561   }
02562 }
02563 
02571 void DrawBoolButton(int x, int y, bool state, bool clickable)
02572 {
02573   static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
02574   DrawFrameRect(x, y, x + SETTING_BUTTON_WIDTH - 1, y + SETTING_BUTTON_HEIGHT - 1, _bool_ctabs[state][clickable], state ? FR_LOWERED : FR_NONE);
02575 }
02576 
02577 struct CustomCurrencyWindow : Window {
02578   int query_widget;
02579 
02580   CustomCurrencyWindow(const WindowDesc *desc) : Window()
02581   {
02582     this->InitNested(desc);
02583 
02584     SetButtonState();
02585   }
02586 
02587   void SetButtonState()
02588   {
02589     this->SetWidgetDisabledState(WID_CC_RATE_DOWN, _custom_currency.rate == 1);
02590     this->SetWidgetDisabledState(WID_CC_RATE_UP, _custom_currency.rate == UINT16_MAX);
02591     this->SetWidgetDisabledState(WID_CC_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
02592     this->SetWidgetDisabledState(WID_CC_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
02593   }
02594 
02595   virtual void SetStringParameters(int widget) const
02596   {
02597     switch (widget) {
02598       case WID_CC_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
02599       case WID_CC_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
02600       case WID_CC_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
02601       case WID_CC_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
02602       case WID_CC_YEAR:
02603         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
02604         SetDParam(1, _custom_currency.to_euro);
02605         break;
02606 
02607       case WID_CC_PREVIEW:
02608         SetDParam(0, 10000);
02609         break;
02610     }
02611   }
02612 
02613   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
02614   {
02615     switch (widget) {
02616       /* Set the appropriate width for the edit 'buttons' */
02617       case WID_CC_SEPARATOR_EDIT:
02618       case WID_CC_PREFIX_EDIT:
02619       case WID_CC_SUFFIX_EDIT:
02620         size->width  = this->GetWidget<NWidgetBase>(WID_CC_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(WID_CC_RATE_UP)->smallest_x;
02621         break;
02622 
02623       /* Make sure the window is wide enough for the widest exchange rate */
02624       case WID_CC_RATE:
02625         SetDParam(0, 1);
02626         SetDParam(1, INT32_MAX);
02627         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
02628         break;
02629     }
02630   }
02631 
02632   virtual void OnClick(Point pt, int widget, int click_count)
02633   {
02634     int line = 0;
02635     int len = 0;
02636     StringID str = 0;
02637     CharSetFilter afilter = CS_ALPHANUMERAL;
02638 
02639     switch (widget) {
02640       case WID_CC_RATE_DOWN:
02641         if (_custom_currency.rate > 1) _custom_currency.rate--;
02642         if (_custom_currency.rate == 1) this->DisableWidget(WID_CC_RATE_DOWN);
02643         this->EnableWidget(WID_CC_RATE_UP);
02644         break;
02645 
02646       case WID_CC_RATE_UP:
02647         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
02648         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(WID_CC_RATE_UP);
02649         this->EnableWidget(WID_CC_RATE_DOWN);
02650         break;
02651 
02652       case WID_CC_RATE:
02653         SetDParam(0, _custom_currency.rate);
02654         str = STR_JUST_INT;
02655         len = 5;
02656         line = WID_CC_RATE;
02657         afilter = CS_NUMERAL;
02658         break;
02659 
02660       case WID_CC_SEPARATOR_EDIT:
02661       case WID_CC_SEPARATOR:
02662         SetDParamStr(0, _custom_currency.separator);
02663         str = STR_JUST_RAW_STRING;
02664         len = 1;
02665         line = WID_CC_SEPARATOR;
02666         break;
02667 
02668       case WID_CC_PREFIX_EDIT:
02669       case WID_CC_PREFIX:
02670         SetDParamStr(0, _custom_currency.prefix);
02671         str = STR_JUST_RAW_STRING;
02672         len = 12;
02673         line = WID_CC_PREFIX;
02674         break;
02675 
02676       case WID_CC_SUFFIX_EDIT:
02677       case WID_CC_SUFFIX:
02678         SetDParamStr(0, _custom_currency.suffix);
02679         str = STR_JUST_RAW_STRING;
02680         len = 12;
02681         line = WID_CC_SUFFIX;
02682         break;
02683 
02684       case WID_CC_YEAR_DOWN:
02685         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
02686         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(WID_CC_YEAR_DOWN);
02687         this->EnableWidget(WID_CC_YEAR_UP);
02688         break;
02689 
02690       case WID_CC_YEAR_UP:
02691         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
02692         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(WID_CC_YEAR_UP);
02693         this->EnableWidget(WID_CC_YEAR_DOWN);
02694         break;
02695 
02696       case WID_CC_YEAR:
02697         SetDParam(0, _custom_currency.to_euro);
02698         str = STR_JUST_INT;
02699         len = 7;
02700         line = WID_CC_YEAR;
02701         afilter = CS_NUMERAL;
02702         break;
02703     }
02704 
02705     if (len != 0) {
02706       this->query_widget = line;
02707       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, this, afilter, QSF_NONE);
02708     }
02709 
02710     this->SetTimeout();
02711     this->SetDirty();
02712   }
02713 
02714   virtual void OnQueryTextFinished(char *str)
02715   {
02716     if (str == NULL) return;
02717 
02718     switch (this->query_widget) {
02719       case WID_CC_RATE:
02720         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
02721         break;
02722 
02723       case WID_CC_SEPARATOR: // Thousands seperator
02724         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
02725         break;
02726 
02727       case WID_CC_PREFIX:
02728         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
02729         break;
02730 
02731       case WID_CC_SUFFIX:
02732         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
02733         break;
02734 
02735       case WID_CC_YEAR: { // Year to switch to euro
02736         int val = atoi(str);
02737 
02738         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
02739         break;
02740       }
02741     }
02742     MarkWholeScreenDirty();
02743     SetButtonState();
02744   }
02745 
02746   virtual void OnTimeout()
02747   {
02748     this->SetDirty();
02749   }
02750 };
02751 
02752 static const NWidgetPart _nested_cust_currency_widgets[] = {
02753   NWidget(NWID_HORIZONTAL),
02754     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
02755     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
02756   EndContainer(),
02757   NWidget(WWT_PANEL, COLOUR_GREY),
02758     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
02759       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02760         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
02761         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
02762         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02763         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
02764       EndContainer(),
02765       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02766         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
02767         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02768         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
02769       EndContainer(),
02770       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02771         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
02772         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02773         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
02774       EndContainer(),
02775       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02776         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, WID_CC_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
02777         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02778         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
02779       EndContainer(),
02780       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
02781         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02782         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, WID_CC_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
02783         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
02784         NWidget(WWT_TEXT, COLOUR_BLUE, WID_CC_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
02785       EndContainer(),
02786     EndContainer(),
02787     NWidget(WWT_LABEL, COLOUR_BLUE, WID_CC_PREVIEW),
02788                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
02789   EndContainer(),
02790 };
02791 
02792 static const WindowDesc _cust_currency_desc(
02793   WDP_CENTER, 0, 0,
02794   WC_CUSTOM_CURRENCY, WC_NONE,
02795   WDF_UNCLICK_BUTTONS,
02796   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
02797 );
02798 
02800 static void ShowCustCurrency()
02801 {
02802   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
02803   new CustomCurrencyWindow(&_cust_currency_desc);
02804 }