# settings_gui.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013 #include "currency.h"
    00014 #include "gui.h"
    00015 #include "textbuf_gui.h"
    00016 #include "command_func.h"
    00017 #include "screenshot.h"
    00018 #include "network/network.h"
    00019 #include "town.h"
    00020 #include "settings_internal.h"
    00021 #include "newgrf_townname.h"
    00022 #include "strings_func.h"
    00023 #include "window_func.h"
    00024 #include "string_func.h"
    00025 #include "widgets/dropdown_type.h"
    00026 #include "widgets/dropdown_func.h"
    00027 #include "highscore.h"
    00028 #include "base_media_base.h"
    00029 #include "company_base.h"
    00030 #include "company_func.h"
    00031 #include "viewport_func.h"
    00032 #include "core/geometry_func.hpp"
    00033 #include "ai/ai.hpp"
    00034 #include "language.h"
    00035
    00036 #include "table/sprites.h"
    00037 #include "table/strings.h"
    00038 #include <map>
    00039
    00040 static const StringID _units_dropdown[] = {
    00041   STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL,
    00042   STR_GAME_OPTIONS_MEASURING_UNITS_METRIC,
    00043   STR_GAME_OPTIONS_MEASURING_UNITS_SI,
    00044   INVALID_STRING_ID
    00045 };
    00046
    00047 static const StringID _driveside_dropdown[] = {
    00048   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT,
    00049   STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_RIGHT,
    00050   INVALID_STRING_ID
    00051 };
    00052
    00053 static const StringID _autosave_dropdown[] = {
    00054   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_OFF,
    00055   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_DAY,
    00056   STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_EVERY_1_WEEK,
    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
    00069 void InitGRFTownGeneratorNames()
    00070 {
    00071   free(_grf_names);
    00072   _grf_names = GetGRFTownNameList();
    00073   _nb_grf_names = 0;
    00074   for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;
    00075 }
    00076
    00082 static inline StringID TownName(int town_name)
    00083 {
    00084   if (town_name < _nb_orig_names) return STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + town_name;
    00085   town_name -= _nb_orig_names;
    00086   if (town_name < _nb_grf_names) return _grf_names[town_name];
    00087   return STR_UNDEFINED;
    00088 }
    00089
    00094 static int GetCurRes()
    00095 {
    00096   int i;
    00097
    00098   for (i = 0; i != _num_resolutions; i++) {
    00099     if ((int)_resolutions[i].width == _screen.width &&
    00100         (int)_resolutions[i].height == _screen.height) {
    00101       break;
    00102     }
    00103   }
    00104   return i;
    00105 }
    00106
    00108 enum GameOptionsWidgets {
    00109   GOW_BACKGROUND,
    00110   GOW_CURRENCY_DROPDOWN,
    00111   GOW_DISTANCE_DROPDOWN,
    00112   GOW_ROADSIDE_DROPDOWN,
    00113   GOW_TOWNNAME_DROPDOWN,
    00114   GOW_AUTOSAVE_DROPDOWN,
    00115   GOW_LANG_DROPDOWN,
    00116   GOW_RESOLUTION_DROPDOWN,
    00117   GOW_FULLSCREEN_BUTTON,
    00118   GOW_SCREENSHOT_DROPDOWN,
    00119   GOW_BASE_GRF_DROPDOWN,
    00120   GOW_BASE_GRF_STATUS,
    00121   GOW_BASE_GRF_DESCRIPTION,
    00122   GOW_BASE_SFX_DROPDOWN,
    00123   GOW_BASE_SFX_DESCRIPTION,
    00124   GOW_BASE_MUSIC_DROPDOWN,
    00125   GOW_BASE_MUSIC_STATUS,
    00126   GOW_BASE_MUSIC_DESCRIPTION,
    00127 };
    00128
    00129 static void ShowCustCurrency();
    00130
    00131 template <class T>
    00132 static DropDownList *BuiltSetDropDownList(int *selected_index)
    00133 {
    00134   int n = T::GetNumSets();
    00135   *selected_index = T::GetIndexOfUsedSet();
    00136
    00137   DropDownList *list = new DropDownList();
    00138   for (int i = 0; i < n; i++) {
    00139     list->push_back(new DropDownListCharStringItem(T::GetSet(i)->name, i, (_game_mode == GM_MENU) ? false : (*selected_index != i)));
    00140   }
    00141
    00142   return list;
    00143 }
    00144
    00145 struct GameOptionsWindow : Window {
    00146   GameSettings *opt;
    00147   bool reload;
    00148
    00149   GameOptionsWindow(const WindowDesc *desc) : Window()
    00150   {
    00151     this->opt = &GetGameSettings();
    00152     this->reload = false;
    00153
    00154     this->InitNested(desc);
    00155     this->OnInvalidateData(0);
    00156   }
    00157
    00158   ~GameOptionsWindow()
    00159   {
    00160     DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
    00161     if (this->reload) _switch_mode = SM_MENU;
    00162   }
    00163
    00170   DropDownList *BuildDropDownList(int widget, int *selected_index) const
    00171   {
    00172     DropDownList *list = NULL;
    00173     switch (widget) {
    00174       case GOW_CURRENCY_DROPDOWN: { // Setup currencies dropdown
    00175         list = new DropDownList();
    00176         *selected_index = this->opt->locale.currency;
    00177         StringID *items = BuildCurrencyDropdown();
    00178         uint disabled = _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies();
    00179         int custom_index = -1;
    00180
    00181         /* Add non-custom currencies; sorted naturally */
    00182         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
    00183           if (*items == STR_GAME_OPTIONS_CURRENCY_CUSTOM) {
    00184             custom_index = i;
    00185           } else {
    00186             list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
    00187           }
    00188         }
    00189         list->sort(DropDownListStringItem::NatSortFunc);
    00190
    00191         /* Append custom currency at the end */
    00192         if (custom_index >= 0) {
    00193           list->push_back(new DropDownListItem(-1, false)); // separator line
    00194           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_CURRENCY_CUSTOM, custom_index, HasBit(disabled, custom_index)));
    00195         }
    00196         break;
    00197       }
    00198
    00199       case GOW_DISTANCE_DROPDOWN: { // Setup distance unit dropdown
    00200         list = new DropDownList();
    00201         *selected_index = this->opt->locale.units;
    00202         const StringID *items = _units_dropdown;
    00203         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
    00204           list->push_back(new DropDownListStringItem(*items, i, false));
    00205         }
    00206         break;
    00207       }
    00208
    00209       case GOW_ROADSIDE_DROPDOWN: { // Setup road-side dropdown
    00210         list = new DropDownList();
    00211         *selected_index = this->opt->vehicle.road_side;
    00212         const StringID *items = _driveside_dropdown;
    00213         uint disabled = 0;
    00214
    00215         /* You can only change the drive side if you are in the menu or ingame with
    00216          * no vehicles present. In a networking game only the server can change it */
    00217         extern bool RoadVehiclesAreBuilt();
    00218         if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server)) {
    00219           disabled = ~(1 << this->opt->vehicle.road_side); // disable the other value
    00220         }
    00221
    00222         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
    00223           list->push_back(new DropDownListStringItem(*items, i, HasBit(disabled, i)));
    00224         }
    00225         break;
    00226       }
    00227
    00228       case GOW_TOWNNAME_DROPDOWN: { // Setup townname dropdown
    00229         list = new DropDownList();
    00230         *selected_index = this->opt->game_creation.town_name;
    00231
    00232         int enabled_item = (_game_mode == GM_MENU || Town::GetNumItems() == 0) ? -1 : *selected_index;
    00233
    00234         /* Add and sort original townnames generators */
    00235         for (int i = 0; i < _nb_orig_names; i++) {
    00236           list->push_back(new DropDownListStringItem(STR_GAME_OPTIONS_TOWN_NAME_ORIGINAL_ENGLISH + i, i, enabled_item != i && enabled_item >= 0));
    00237         }
    00238         list->sort(DropDownListStringItem::NatSortFunc);
    00239
    00240         /* Add and sort newgrf townnames generators */
    00241         DropDownList newgrf_names;
    00242         for (int i = 0; i < _nb_grf_names; i++) {
    00243           int result = _nb_orig_names + i;
    00244           newgrf_names.push_back(new DropDownListStringItem(_grf_names[i], result, enabled_item != result && enabled_item >= 0));
    00245         }
    00246         newgrf_names.sort(DropDownListStringItem::NatSortFunc);
    00247
    00248         /* Insert newgrf_names at the top of the list */
    00249         if (newgrf_names.size() > 0) {
    00250           newgrf_names.push_back(new DropDownListItem(-1, false)); // separator line
    00251           list->splice(list->begin(), newgrf_names);
    00252         }
    00253         break;
    00254       }
    00255
    00256       case GOW_AUTOSAVE_DROPDOWN: { // Setup autosave dropdown
    00257         list = new DropDownList();
    00258         *selected_index = _settings_client.gui.autosave;
    00259         const StringID *items = _autosave_dropdown;
    00260         for (uint i = 0; *items != INVALID_STRING_ID; items++, i++) {
    00261           list->push_back(new DropDownListStringItem(*items, i, false));
    00262         }
    00263         break;
    00264       }
    00265
    00266       case GOW_LANG_DROPDOWN: { // Setup interface language dropdown
    00267         list = new DropDownList();
    00268         for (uint i = 0; i < _languages.Length(); i++) {
    00269           if (&_languages[i] == _current_language) *selected_index = i;
    00270           list->push_back(new DropDownListStringItem(SPECSTR_LANGUAGE_START + i, i, false));
    00271         }
    00272         list->sort(DropDownListStringItem::NatSortFunc);
    00273         break;
    00274       }
    00275
    00276       case GOW_RESOLUTION_DROPDOWN: // Setup resolution dropdown
    00277         list = new DropDownList();
    00278         *selected_index = GetCurRes();
    00279         for (int i = 0; i < _num_resolutions; i++) {
    00280           list->push_back(new DropDownListStringItem(SPECSTR_RESOLUTION_START + i, i, false));
    00281         }
    00282         break;
    00283
    00284       case GOW_SCREENSHOT_DROPDOWN: // Setup screenshot format dropdown
    00285         list = new DropDownList();
    00286         *selected_index = _cur_screenshot_format;
    00287         for (uint i = 0; i < _num_screenshot_formats; i++) {
    00288           list->push_back(new DropDownListStringItem(SPECSTR_SCREENSHOT_START + i, i, false));
    00289         }
    00290         break;
    00291
    00292       case GOW_BASE_GRF_DROPDOWN:
    00293         list = BuiltSetDropDownList<BaseGraphics>(selected_index);
    00294         break;
    00295
    00296       case GOW_BASE_SFX_DROPDOWN:
    00297         list = BuiltSetDropDownList<BaseSounds>(selected_index);
    00298         break;
    00299
    00300       case GOW_BASE_MUSIC_DROPDOWN:
    00301         list = BuiltSetDropDownList<BaseMusic>(selected_index);
    00302         break;
    00303
    00304       default:
    00305         return NULL;
    00306     }
    00307
    00308     return list;
    00309   }
    00310
    00311   virtual void SetStringParameters(int widget) const
    00312   {
    00313     switch (widget) {
    00314       case GOW_CURRENCY_DROPDOWN:   SetDParam(0, _currency_specs[this->opt->locale.currency].name); break;
    00315       case GOW_DISTANCE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_MEASURING_UNITS_IMPERIAL + this->opt->locale.units); break;
    00316       case GOW_ROADSIDE_DROPDOWN:   SetDParam(0, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_LEFT + this->opt->vehicle.road_side); break;
    00317       case GOW_TOWNNAME_DROPDOWN:   SetDParam(0, TownName(this->opt->game_creation.town_name)); break;
    00318       case GOW_AUTOSAVE_DROPDOWN:   SetDParam(0, _autosave_dropdown[_settings_client.gui.autosave]); break;
    00319       case GOW_LANG_DROPDOWN:       SetDParamStr(0, _current_language->own_name); break;
    00320       case GOW_RESOLUTION_DROPDOWN: SetDParam(0, GetCurRes() == _num_resolutions ? STR_GAME_OPTIONS_RESOLUTION_OTHER : SPECSTR_RESOLUTION_START + GetCurRes()); break;
    00321       case GOW_SCREENSHOT_DROPDOWN: SetDParam(0, SPECSTR_SCREENSHOT_START + _cur_screenshot_format); break;
    00322       case GOW_BASE_GRF_DROPDOWN:   SetDParamStr(0, BaseGraphics::GetUsedSet()->name); break;
    00323       case GOW_BASE_GRF_STATUS:     SetDParam(0, BaseGraphics::GetUsedSet()->GetNumInvalid()); break;
    00324       case GOW_BASE_SFX_DROPDOWN:   SetDParamStr(0, BaseSounds::GetUsedSet()->name); break;
    00325       case GOW_BASE_MUSIC_DROPDOWN: SetDParamStr(0, BaseMusic::GetUsedSet()->name); break;
    00326       case GOW_BASE_MUSIC_STATUS:   SetDParam(0, BaseMusic::GetUsedSet()->GetNumInvalid()); break;
    00327     }
    00328   }
    00329
    00330   virtual void DrawWidget(const Rect &r, int widget) const
    00331   {
    00332     switch (widget) {
    00333       case GOW_BASE_GRF_DESCRIPTION:
    00334         SetDParamStr(0, BaseGraphics::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
    00335         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
    00336         break;
    00337
    00338       case GOW_BASE_SFX_DESCRIPTION:
    00339         SetDParamStr(0, BaseSounds::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
    00340         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
    00341         break;
    00342
    00343       case GOW_BASE_MUSIC_DESCRIPTION:
    00344         SetDParamStr(0, BaseMusic::GetUsedSet()->GetDescription(GetCurrentLanguageIsoCode()));
    00345         DrawStringMultiLine(r.left, r.right, r.top, UINT16_MAX, STR_BLACK_RAW_STRING);
    00346         break;
    00347     }
    00348   }
    00349
    00350   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00351   {
    00352     switch (widget) {
    00353       case GOW_BASE_GRF_DESCRIPTION:
    00354         /* Find the biggest description for the default size. */
    00355         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
    00356           SetDParamStr(0, BaseGraphics::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
    00357           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
    00358         }
    00359         break;
    00360
    00361       case GOW_BASE_GRF_STATUS:
    00362         /* Find the biggest description for the default size. */
    00363         for (int i = 0; i < BaseGraphics::GetNumSets(); i++) {
    00364           uint invalid_files = BaseGraphics::GetSet(i)->GetNumInvalid();
    00365           if (invalid_files == 0) continue;
    00366
    00367           SetDParam(0, invalid_files);
    00368           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_GRF_STATUS));
    00369         }
    00370         break;
    00371
    00372       case GOW_BASE_SFX_DESCRIPTION:
    00373         /* Find the biggest description for the default size. */
    00374         for (int i = 0; i < BaseSounds::GetNumSets(); i++) {
    00375           SetDParamStr(0, BaseSounds::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
    00376           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
    00377         }
    00378         break;
    00379
    00380       case GOW_BASE_MUSIC_DESCRIPTION:
    00381         /* Find the biggest description for the default size. */
    00382         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
    00383           SetDParamStr(0, BaseMusic::GetSet(i)->GetDescription(GetCurrentLanguageIsoCode()));
    00384           size->height = max(size->height, (uint)GetStringHeight(STR_BLACK_RAW_STRING, size->width));
    00385         }
    00386         break;
    00387
    00388       case GOW_BASE_MUSIC_STATUS:
    00389         /* Find the biggest description for the default size. */
    00390         for (int i = 0; i < BaseMusic::GetNumSets(); i++) {
    00391           uint invalid_files = BaseMusic::GetSet(i)->GetNumInvalid();
    00392           if (invalid_files == 0) continue;
    00393
    00394           SetDParam(0, invalid_files);
    00395           *size = maxdim(*size, GetStringBoundingBox(STR_GAME_OPTIONS_BASE_MUSIC_STATUS));
    00396         }
    00397         break;
    00398
    00399       default: {
    00400         int selected;
    00401         DropDownList *list = this->BuildDropDownList(widget, &selected);
    00402         if (list != NULL) {
    00403           /* Find the biggest item for the default size. */
    00404           for (DropDownList::iterator it = list->begin(); it != list->end(); it++) {
    00405             static const Dimension extra = {WD_DROPDOWNTEXT_LEFT + WD_DROPDOWNTEXT_RIGHT, WD_DROPDOWNTEXT_TOP + WD_DROPDOWNTEXT_BOTTOM};
    00406             Dimension string_dim;
    00407             int width = (*it)->Width();
    00408             string_dim.width = width + extra.width;
    00409             string_dim.height = (*it)->Height(width) + extra.height;
    00410             *size = maxdim(*size, string_dim);
    00411             delete *it;
    00412           }
    00413           delete list;
    00414         }
    00415       }
    00416     }
    00417   }
    00418
    00419   virtual void OnClick(Point pt, int widget, int click_count)
    00420   {
    00421     switch (widget) {
    00422       case GOW_FULLSCREEN_BUTTON: // Click fullscreen on/off
    00423         /* try to toggle full-screen on/off */
    00424         if (!ToggleFullScreen(!_fullscreen)) {
    00425           ShowErrorMessage(STR_ERROR_FULLSCREEN_FAILED, INVALID_STRING_ID, WL_ERROR);
    00426         }
    00427         this->SetWidgetLoweredState(GOW_FULLSCREEN_BUTTON, _fullscreen);
    00428         this->SetDirty();
    00429         break;
    00430
    00431       default: {
    00432         int selected;
    00433         DropDownList *list = this->BuildDropDownList(widget, &selected);
    00434         if (list != NULL) {
    00435           ShowDropDownList(this, list, selected, widget);
    00436         }
    00437         break;
    00438       }
    00439     }
    00440   }
    00441
    00447   template <class T>
    00448   void SetMediaSet(int index)
    00449   {
    00450     if (_game_mode == GM_MENU) {
    00451       const char *name = T::GetSet(index)->name;
    00452
    00453       free(const_cast<char *>(T::ini_set));
    00454       T::ini_set = strdup(name);
    00455
    00456       T::SetSet(name);
    00457       this->reload = true;
    00458       this->InvalidateData();
    00459     }
    00460   }
    00461
    00462   virtual void OnDropdownSelect(int widget, int index)
    00463   {
    00464     switch (widget) {
    00465       case GOW_CURRENCY_DROPDOWN: // Currency
    00466         if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();
    00467         this->opt->locale.currency = index;
    00468         ReInitAllWindows();
    00469         break;
    00470
    00471       case GOW_DISTANCE_DROPDOWN: // Measuring units
    00472         this->opt->locale.units = index;
    00473         MarkWholeScreenDirty();
    00474         break;
    00475
    00476       case GOW_ROADSIDE_DROPDOWN: // Road side
    00477         if (this->opt->vehicle.road_side != index) { // only change if setting changed
    00478           uint i;
    00479           if (GetSettingFromName("vehicle.road_side", &i) == NULL) NOT_REACHED();
    00480           SetSettingValue(i, index);
    00481           MarkWholeScreenDirty();
    00482         }
    00483         break;
    00484
    00485       case GOW_TOWNNAME_DROPDOWN: // Town names
    00486         if (_game_mode == GM_MENU || Town::GetNumItems() == 0) {
    00487           this->opt->game_creation.town_name = index;
    00488           SetWindowDirty(WC_GAME_OPTIONS, 0);
    00489         }
    00490         break;
    00491
    00492       case GOW_AUTOSAVE_DROPDOWN: // Autosave options
    00493         _settings_client.gui.autosave = index;
    00494         this->SetDirty();
    00495         break;
    00496
    00497       case GOW_LANG_DROPDOWN: // Change interface language
    00498         ReadLanguagePack(&_languages[index]);
    00499         DeleteWindowByClass(WC_QUERY_STRING);
    00500         CheckForMissingGlyphsInLoadedLanguagePack();
    00501         UpdateAllVirtCoords();
    00502         ReInitAllWindows();
    00503         break;
    00504
    00505       case GOW_RESOLUTION_DROPDOWN: // Change resolution
    00506         if (index < _num_resolutions && ChangeResInGame(_resolutions[index].width, _resolutions[index].height)) {
    00507           this->SetDirty();
    00508         }
    00509         break;
    00510
    00511       case GOW_SCREENSHOT_DROPDOWN: // Change screenshot format
    00512         SetScreenshotFormat(index);
    00513         this->SetDirty();
    00514         break;
    00515
    00516       case GOW_BASE_GRF_DROPDOWN:
    00517         this->SetMediaSet<BaseGraphics>(index);
    00518         break;
    00519
    00520       case GOW_BASE_SFX_DROPDOWN:
    00521         this->SetMediaSet<BaseSounds>(index);
    00522         break;
    00523
    00524       case GOW_BASE_MUSIC_DROPDOWN:
    00525         this->SetMediaSet<BaseMusic>(index);
    00526         break;
    00527     }
    00528   }
    00529
    00535   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    00536   {
    00537     if (!gui_scope) return;
    00538     this->SetWidgetLoweredState(GOW_FULLSCREEN_BUTTON, _fullscreen);
    00539
    00540     bool missing_files = BaseGraphics::GetUsedSet()->GetNumMissing() == 0;
    00541     this->GetWidget<NWidgetCore>(GOW_BASE_GRF_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_GRF_STATUS, STR_NULL);
    00542
    00543     missing_files = BaseMusic::GetUsedSet()->GetNumInvalid() == 0;
    00544     this->GetWidget<NWidgetCore>(GOW_BASE_MUSIC_STATUS)->SetDataTip(missing_files ? STR_EMPTY : STR_GAME_OPTIONS_BASE_MUSIC_STATUS, STR_NULL);
    00545   }
    00546 };
    00547
    00548 static const NWidgetPart _nested_game_options_widgets[] = {
    00549   NWidget(NWID_HORIZONTAL),
    00550     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00551     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00552   EndContainer(),
    00553   NWidget(WWT_PANEL, COLOUR_GREY, GOW_BACKGROUND), SetPIP(6, 6, 10),
    00554     NWidget(NWID_HORIZONTAL), SetPIP(10, 10, 10),
    00555       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
    00556         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_CURRENCY_UNITS_FRAME, STR_NULL),
    00557           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_CURRENCY_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_CURRENCY_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
    00558         EndContainer(),
    00559         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_ROAD_VEHICLES_FRAME, STR_NULL),
    00560           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_ROADSIDE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_ROAD_VEHICLES_DROPDOWN_TOOLTIP), SetFill(1, 0),
    00561         EndContainer(),
    00562         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_AUTOSAVE_FRAME, STR_NULL),
    00563           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_AUTOSAVE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_AUTOSAVE_DROPDOWN_TOOLTIP), SetFill(1, 0),
    00564         EndContainer(),
    00565         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_RESOLUTION, STR_NULL),
    00566           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_RESOLUTION_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_RESOLUTION_TOOLTIP), SetFill(1, 0), SetPadding(0, 0, 3, 0),
    00567           NWidget(NWID_HORIZONTAL),
    00568             NWidget(WWT_TEXT, COLOUR_GREY), SetMinimalSize(0, 12), SetFill(1, 0), SetDataTip(STR_GAME_OPTIONS_FULLSCREEN, STR_NULL),
    00569             NWidget(WWT_TEXTBTN, COLOUR_GREY, GOW_FULLSCREEN_BUTTON), SetMinimalSize(21, 9), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_FULLSCREEN_TOOLTIP),
    00570           EndContainer(),
    00571         EndContainer(),
    00572       EndContainer(),
    00573
    00574       NWidget(NWID_VERTICAL), SetPIP(0, 6, 0),
    00575         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_MEASURING_UNITS_FRAME, STR_NULL),
    00576           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_DISTANCE_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_MEASURING_UNITS_DROPDOWN_TOOLTIP), SetFill(1, 0),
    00577         EndContainer(),
    00578         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_TOWN_NAMES_FRAME, STR_NULL),
    00579           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_TOWNNAME_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_TOWN_NAMES_DROPDOWN_TOOLTIP), SetFill(1, 0),
    00580         EndContainer(),
    00581         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_LANGUAGE, STR_NULL),
    00582           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_LANG_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_LANGUAGE_TOOLTIP), SetFill(1, 0),
    00583         EndContainer(),
    00584         NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_SCREENSHOT_FORMAT, STR_NULL),
    00585           NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_SCREENSHOT_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_STRING, STR_GAME_OPTIONS_SCREENSHOT_FORMAT_TOOLTIP), SetFill(1, 0),
    00586         EndContainer(),
    00587         NWidget(NWID_SPACER), SetMinimalSize(0, 0), SetFill(0, 1),
    00588       EndContainer(),
    00589     EndContainer(),
    00590
    00591     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_GRF, STR_NULL), SetPadding(0, 10, 0, 10),
    00592       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
    00593         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_GRF_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_GRF_TOOLTIP),
    00594         NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_GRF_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
    00595       EndContainer(),
    00596       NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_GRF_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_GRF_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 0, 0),
    00597     EndContainer(),
    00598
    00599     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_SFX, STR_NULL), SetPadding(0, 10, 0, 10),
    00600       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
    00601         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_SFX_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_SFX_TOOLTIP),
    00602         NWidget(NWID_SPACER), SetFill(1, 0),
    00603       EndContainer(),
    00604       NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_SFX_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_SFX_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 0, 0),
    00605     EndContainer(),
    00606
    00607     NWidget(WWT_FRAME, COLOUR_GREY), SetDataTip(STR_GAME_OPTIONS_BASE_MUSIC, STR_NULL), SetPadding(0, 10, 0, 10),
    00608       NWidget(NWID_HORIZONTAL), SetPIP(0, 30, 0),
    00609         NWidget(WWT_DROPDOWN, COLOUR_GREY, GOW_BASE_MUSIC_DROPDOWN), SetMinimalSize(150, 12), SetDataTip(STR_BLACK_RAW_STRING, STR_GAME_OPTIONS_BASE_MUSIC_TOOLTIP),
    00610         NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_MUSIC_STATUS), SetMinimalSize(150, 12), SetDataTip(STR_EMPTY, STR_NULL), SetFill(1, 0),
    00611       EndContainer(),
    00612       NWidget(WWT_TEXT, COLOUR_GREY, GOW_BASE_MUSIC_DESCRIPTION), SetMinimalSize(330, 0), SetDataTip(STR_EMPTY, STR_GAME_OPTIONS_BASE_MUSIC_DESCRIPTION_TOOLTIP), SetFill(1, 0), SetPadding(6, 0, 0, 0),
    00613     EndContainer(),
    00614   EndContainer(),
    00615 };
    00616
    00617 static const WindowDesc _game_options_desc(
    00618   WDP_CENTER, 0, 0,
    00619   WC_GAME_OPTIONS, WC_NONE,
    00620   WDF_UNCLICK_BUTTONS,
    00621   _nested_game_options_widgets, lengthof(_nested_game_options_widgets)
    00622 );
    00623
    00625 void ShowGameOptions()
    00626 {
    00627   DeleteWindowById(WC_GAME_OPTIONS, 0);
    00628   new GameOptionsWindow(&_game_options_desc);
    00629 }
    00630
    00631 extern void StartupEconomy();
    00632
    00633
    00634 /* Names of the game difficulty settings window */
    00635 enum GameDifficultyWidgets {
    00636   GDW_LVL_EASY,
    00637   GDW_LVL_MEDIUM,
    00638   GDW_LVL_HARD,
    00639   GDW_LVL_CUSTOM,
    00640   GDW_HIGHSCORE,
    00641   GDW_ACCEPT,
    00642   GDW_CANCEL,
    00643
    00644   GDW_OPTIONS_START,
    00645 };
    00646
    00647 void SetDifficultyLevel(int mode, DifficultySettings *gm_opt);
    00648
    00649 class GameDifficultyWindow : public Window {
    00650 private:
    00651   /* Temporary holding place of values in the difficulty window until 'Save' is clicked */
    00652   GameSettings opt_mod_temp;
    00653
    00654 public:
    00656   static const uint GAME_DIFFICULTY_NUM = 18;
    00658   static const uint WIDGETS_PER_DIFFICULTY = 3;
    00659
    00660   GameDifficultyWindow(const WindowDesc *desc) : Window()
    00661   {
    00662     this->InitNested(desc);
    00663
    00664     /* Copy current settings (ingame or in intro) to temporary holding place
    00665      * change that when setting stuff, copy back on clicking 'OK' */
    00666     this->opt_mod_temp = GetGameSettings();
    00667     /* Setup disabled buttons when creating window
    00668      * disable all other difficulty buttons during gameplay except for 'custom' */
    00669     this->SetWidgetsDisabledState(_game_mode != GM_MENU,
    00670       GDW_LVL_EASY,
    00671       GDW_LVL_MEDIUM,
    00672       GDW_LVL_HARD,
    00673       GDW_LVL_CUSTOM,
    00674       WIDGET_LIST_END);
    00675     this->SetWidgetDisabledState(GDW_HIGHSCORE, _game_mode == GM_EDITOR || _networking); // highscore chart in multiplayer
    00676     this->SetWidgetDisabledState(GDW_ACCEPT, _networking && !_network_server); // Save-button in multiplayer (and if client)
    00677     this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
    00678     this->OnInvalidateData();
    00679   }
    00680
    00681   virtual void SetStringParameters(int widget) const
    00682   {
    00683     widget -= GDW_OPTIONS_START;
    00684     if (widget < 0 || (widget % 3) != 2) return;
    00685
    00686     widget /= 3;
    00687
    00688     uint i;
    00689     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + widget;
    00690     int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
    00691     SetDParam(0, sd->desc.str + value);
    00692   }
    00693
    00694   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00695   {
    00696     /* Only for the 'descriptions' */
    00697     int index = widget - GDW_OPTIONS_START;
    00698     if (index < 0 || (index % 3) != 2) return;
    00699
    00700     index /= 3;
    00701
    00702     uint i;
    00703     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + index;
    00704     const SettingDescBase *sdb = &sd->desc;
    00705
    00706     /* Get the string and try all strings from the smallest to the highest value */
    00707     StringID str = this->GetWidget<NWidgetCore>(widget)->widget_data;
    00708     for (int32 value = sdb->min; (uint32)value <= sdb->max; value += sdb->interval) {
    00709       SetDParam(0, sdb->str + value);
    00710       *size = maxdim(*size, GetStringBoundingBox(str));
    00711     }
    00712   }
    00713
    00714   virtual void OnClick(Point pt, int widget, int click_count)
    00715   {
    00716     if (widget >= GDW_OPTIONS_START) {
    00717       widget -= GDW_OPTIONS_START;
    00718       if ((widget % 3) == 2) return;
    00719
    00720       /* Don't allow clients to make any changes */
    00721       if (_networking && !_network_server) return;
    00722
    00723       uint i;
    00724       const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i) + (widget / 3);
    00725       const SettingDescBase *sdb = &sd->desc;
    00726
    00727       int32 val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
    00728       if (widget % 3 == 1) {
    00729         /* Increase button clicked */
    00730         val = min(val + sdb->interval, (int32)sdb->max);
    00731       } else {
    00732         /* Decrease button clicked */
    00733         val -= sdb->interval;
    00734         val = max(val, sdb->min);
    00735       }
    00736
    00737       /* save value in temporary variable */
    00738       WriteValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv, val);
    00739       this->RaiseWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
    00740       SetDifficultyLevel(3, &this->opt_mod_temp.difficulty); // set difficulty level to custom
    00741       this->LowerWidget(GDW_LVL_CUSTOM);
    00742       this->InvalidateData();
    00743
    00744       if (widget / 3 == 0 &&
    00745 #ifdef ENABLE_AI
    00746           AI::GetInfoList()->size() == 0 &&
    00747 #endif /* ENABLE_AI */
    00748           this->opt_mod_temp.difficulty.max_no_competitors != 0) {
    00749         ShowErrorMessage(STR_WARNING_NO_SUITABLE_AI, INVALID_STRING_ID, WL_CRITICAL);
    00750       }
    00751       return;
    00752     }
    00753
    00754     switch (widget) {
    00755       case GDW_LVL_EASY:
    00756       case GDW_LVL_MEDIUM:
    00757       case GDW_LVL_HARD:
    00758       case GDW_LVL_CUSTOM:
    00759         /* temporarily change difficulty level */
    00760         this->RaiseWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
    00761         SetDifficultyLevel(widget - GDW_LVL_EASY, &this->opt_mod_temp.difficulty);
    00762         this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);
    00763         this->InvalidateData();
    00764         break;
    00765
    00766       case GDW_HIGHSCORE: // Highscore Table
    00767         ShowHighscoreTable(this->opt_mod_temp.difficulty.diff_level, -1);
    00768         break;
    00769
    00770       case GDW_ACCEPT: { // Save button - save changes
    00771         GameSettings *opt_ptr = &GetGameSettings();
    00772
    00773         uint i;
    00774         GetSettingFromName("difficulty.diff_level", &i);
    00775         DoCommandP(0, i, this->opt_mod_temp.difficulty.diff_level, CMD_CHANGE_SETTING);
    00776
    00777         const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
    00778         for (uint btn = 0; btn != GAME_DIFFICULTY_NUM; btn++, sd++) {
    00779           int32 new_val = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
    00780           int32 cur_val = (int32)ReadValue(GetVariableAddress(opt_ptr, &sd->save), sd->save.conv);
    00781           /* if setting has changed, change it */
    00782           if (new_val != cur_val) {
    00783             DoCommandP(0, i + btn, new_val, CMD_CHANGE_SETTING);
    00784           }
    00785         }
    00786         delete this;
    00787         /* If we are in the editor, we should reload the economy.
    00788          * This way when you load a game, the max loan and interest rate
    00789          * are loaded correctly. */
    00790         if (_game_mode == GM_EDITOR) StartupEconomy();
    00791         break;
    00792       }
    00793
    00794       case GDW_CANCEL: // Cancel button - close window, abandon changes
    00795         delete this;
    00796         break;
    00797     }
    00798   }
    00799
    00805   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    00806   {
    00807     if (!gui_scope) return;
    00808     uint i;
    00809     const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
    00810     for (i = 0; i < GAME_DIFFICULTY_NUM; i++, sd++) {
    00811       const SettingDescBase *sdb = &sd->desc;
    00812       /* skip deprecated difficulty options */
    00813       if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
    00814       int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);
    00815       bool disable = (sd->desc.flags & SGF_NEWGAME_ONLY) &&
    00816           (_game_mode == GM_NORMAL ||
    00817           (_game_mode == GM_EDITOR && (sd->desc.flags & SGF_SCENEDIT_TOO) == 0));
    00818
    00819       this->SetWidgetDisabledState(GDW_OPTIONS_START + i * 3 + 0, disable || sdb->min == value);
    00820       this->SetWidgetDisabledState(GDW_OPTIONS_START + i * 3 + 1, disable || sdb->max == (uint32)value);
    00821     }
    00822   }
    00823 };
    00824
    00825 static NWidgetBase *MakeDifficultyOptionsWidgets(int *biggest_index)
    00826 {
    00827   NWidgetVertical *vert_desc = new NWidgetVertical;
    00828
    00829   int widnum = GDW_OPTIONS_START;
    00830   uint i, j;
    00831   const SettingDesc *sd = GetSettingFromName("difficulty.max_no_competitors", &i);
    00832
    00833   for (i = 0, j = 0; i < GameDifficultyWindow::GAME_DIFFICULTY_NUM; i++, sd++, widnum += GameDifficultyWindow::WIDGETS_PER_DIFFICULTY) {
    00834     if (!SlIsObjectCurrentlyValid(sd->save.version_from, sd->save.version_to)) continue;
    00835
    00836     NWidgetHorizontal *hor = new NWidgetHorizontal;
    00837
    00838     /* [<] button. */
    00839     NWidgetLeaf *leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum, AWV_DECREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
    00840     hor->Add(leaf);
    00841
    00842     /* [>] button. */
    00843     leaf = new NWidgetLeaf(WWT_PUSHARROWBTN, COLOUR_YELLOW, widnum + 1, AWV_INCREASE, STR_TOOLTIP_HSCROLL_BAR_SCROLLS_LIST);
    00844     hor->Add(leaf);
    00845
    00846     /* Some spacing between the text and the description */
    00847     NWidgetSpacer *spacer = new NWidgetSpacer(5, 0);
    00848     hor->Add(spacer);
    00849
    00850     /* Descriptive text. */
    00851     leaf = new NWidgetLeaf(WWT_TEXT, COLOUR_YELLOW, widnum + 2, STR_DIFFICULTY_LEVEL_SETTING_MAXIMUM_NO_COMPETITORS + (j++), STR_NULL);
    00852     leaf->SetFill(1, 0);
    00853     hor->Add(leaf);
    00854     vert_desc->Add(hor);
    00855
    00856     /* Space vertically */
    00857     vert_desc->Add(new NWidgetSpacer(0, 2));
    00858   }
    00859   *biggest_index = widnum - 1;
    00860   return vert_desc;
    00861 }
    00862
    00863
    00865 static const NWidgetPart _nested_game_difficulty_widgets[] = {
    00866   NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_DIFFICULTY_LEVEL_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00867   NWidget(WWT_PANEL, COLOUR_MAUVE),
    00868     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
    00869       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
    00870         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_EASY), SetDataTip(STR_DIFFICULTY_LEVEL_EASY, STR_NULL), SetFill(1, 0),
    00871         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_MEDIUM), SetDataTip(STR_DIFFICULTY_LEVEL_MEDIUM, STR_NULL), SetFill(1, 0),
    00872         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_HARD), SetDataTip(STR_DIFFICULTY_LEVEL_HARD, STR_NULL), SetFill(1, 0),
    00873         NWidget(WWT_TEXTBTN, COLOUR_YELLOW, GDW_LVL_CUSTOM), SetDataTip(STR_DIFFICULTY_LEVEL_CUSTOM, STR_NULL), SetFill(1, 0),
    00874       EndContainer(),
    00875       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 10),
    00876         NWidget(WWT_PUSHTXTBTN, COLOUR_GREEN, GDW_HIGHSCORE), SetDataTip(STR_DIFFICULTY_LEVEL_HIGH_SCORE_BUTTON, STR_NULL), SetFill(1, 0),
    00877       EndContainer(),
    00878     EndContainer(),
    00879   EndContainer(),
    00880   NWidget(WWT_PANEL, COLOUR_MAUVE),
    00881     NWidget(NWID_VERTICAL), SetPIP(3, 0, 1),
    00882       NWidget(NWID_HORIZONTAL), SetPIP(5, 0, 5),
    00883         NWidgetFunction(MakeDifficultyOptionsWidgets),
    00884       EndContainer(),
    00885     EndContainer(),
    00886   EndContainer(),
    00887   NWidget(WWT_PANEL, COLOUR_MAUVE),
    00888     NWidget(NWID_VERTICAL), SetPIP(2, 0, 2),
    00889       NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(10, 0, 10),
    00890         NWidget(NWID_SPACER), SetFill(1, 0),
    00891         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, GDW_ACCEPT), SetDataTip(STR_DIFFICULTY_LEVEL_SAVE, STR_NULL), SetFill(1, 0),
    00892         NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, GDW_CANCEL), SetDataTip(STR_BUTTON_CANCEL, STR_NULL), SetFill(1, 0),
    00893         NWidget(NWID_SPACER), SetFill(1, 0),
    00894       EndContainer(),
    00895     EndContainer(),
    00896   EndContainer(),
    00897 };
    00898
    00900 static const WindowDesc _game_difficulty_desc(
    00901   WDP_CENTER, 0, 0,
    00902   WC_GAME_OPTIONS, WC_NONE,
    00903   WDF_UNCLICK_BUTTONS,
    00904   _nested_game_difficulty_widgets, lengthof(_nested_game_difficulty_widgets)
    00905 );
    00906
    00908 void ShowGameDifficulty()
    00909 {
    00910   DeleteWindowById(WC_GAME_OPTIONS, 0);
    00911   new GameDifficultyWindow(&_game_difficulty_desc);
    00912 }
    00913
    00914 static int SETTING_HEIGHT = 11;
    00915 static const int LEVEL_WIDTH = 15;
    00916
    00921 enum SettingEntryFlags {
    00922   SEF_LEFT_DEPRESSED  = 0x01,
    00923   SEF_RIGHT_DEPRESSED = 0x02,
    00924   SEF_BUTTONS_MASK = (SEF_LEFT_DEPRESSED | SEF_RIGHT_DEPRESSED),
    00925
    00926   SEF_LAST_FIELD = 0x04,
    00927
    00928   /* Entry kind */
    00929   SEF_SETTING_KIND = 0x10,
    00930   SEF_SUBTREE_KIND = 0x20,
    00931   SEF_KIND_MASK    = (SEF_SETTING_KIND | SEF_SUBTREE_KIND),
    00932 };
    00933
    00934 struct SettingsPage; // Forward declaration
    00935
    00937 struct SettingEntrySubtree {
    00938   SettingsPage *page;
    00939   bool folded;
    00940   StringID title;
    00941 };
    00942
    00944 struct SettingEntrySetting {
    00945   const char *name;
    00946   const SettingDesc *setting;
    00947   uint index;
    00948 };
    00949
    00951 struct SettingEntry {
    00952   byte flags;
    00953   byte level;
    00954   union {
    00955     SettingEntrySetting entry;
    00956     SettingEntrySubtree sub;
    00957   } d;
    00958
    00959   SettingEntry(const char *nm);
    00960   SettingEntry(SettingsPage *sub, StringID title);
    00961
    00962   void Init(byte level, bool last_field);
    00963   void FoldAll();
    00964   void SetButtons(byte new_val);
    00965
    00966   uint Length() const;
    00967   SettingEntry *FindEntry(uint row, uint *cur_row);
    00968
    00969   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);
    00970
    00971 private:
    00972   void DrawSetting(GameSettings *settings_ptr, const SettingDesc *sd, int x, int y, int max_x, int state);
    00973 };
    00974
    00976 struct SettingsPage {
    00977   SettingEntry *entries;
    00978   byte num;
    00979
    00980   void Init(byte level = 0);
    00981   void FoldAll();
    00982
    00983   uint Length() const;
    00984   SettingEntry *FindEntry(uint row, uint *cur_row) const;
    00985
    00986   uint Draw(GameSettings *settings_ptr, int base_x, int base_y, int max_x, uint first_row, uint max_row, uint cur_row = 0, uint parent_last = 0) const;
    00987 };
    00988
    00989
    00990 /* == SettingEntry methods == */
    00991
    00996 SettingEntry::SettingEntry(const char *nm)
    00997 {
    00998   this->flags = SEF_SETTING_KIND;
    00999   this->level = 0;
    01000   this->d.entry.name = nm;
    01001   this->d.entry.setting = NULL;
    01002   this->d.entry.index = 0;
    01003 }
    01004
    01010 SettingEntry::SettingEntry(SettingsPage *sub, StringID title)
    01011 {
    01012   this->flags = SEF_SUBTREE_KIND;
    01013   this->level = 0;
    01014   this->d.sub.page = sub;
    01015   this->d.sub.folded = true;
    01016   this->d.sub.title = title;
    01017 }
    01018
    01024 void SettingEntry::Init(byte level, bool last_field)
    01025 {
    01026   this->level = level;
    01027   if (last_field) this->flags |= SEF_LAST_FIELD;
    01028
    01029   switch (this->flags & SEF_KIND_MASK) {
    01030     case SEF_SETTING_KIND:
    01031       this->d.entry.setting = GetSettingFromName(this->d.entry.name, &this->d.entry.index);
    01032       assert(this->d.entry.setting != NULL);
    01033       break;
    01034     case SEF_SUBTREE_KIND:
    01035       this->d.sub.page->Init(level + 1);
    01036       break;
    01037     default: NOT_REACHED();
    01038   }
    01039 }
    01040
    01042 void SettingEntry::FoldAll()
    01043 {
    01044   switch (this->flags & SEF_KIND_MASK) {
    01045     case SEF_SETTING_KIND:
    01046       break;
    01047
    01048     case SEF_SUBTREE_KIND:
    01049       this->d.sub.folded = true;
    01050       this->d.sub.page->FoldAll();
    01051       break;
    01052
    01053     default: NOT_REACHED();
    01054   }
    01055 }
    01056
    01057
    01063 void SettingEntry::SetButtons(byte new_val)
    01064 {
    01065   assert((new_val & ~SEF_BUTTONS_MASK) == 0); // Should not touch any flags outside the buttons
    01066   this->flags = (this->flags & ~SEF_BUTTONS_MASK) | new_val;
    01067 }
    01068
    01070 uint SettingEntry::Length() const
    01071 {
    01072   switch (this->flags & SEF_KIND_MASK) {
    01073     case SEF_SETTING_KIND:
    01074       return 1;
    01075     case SEF_SUBTREE_KIND:
    01076       if (this->d.sub.folded) return 1; // Only displaying the title
    01077
    01078       return 1 + this->d.sub.page->Length(); // 1 extra row for the title
    01079     default: NOT_REACHED();
    01080   }
    01081 }
    01082
    01089 SettingEntry *SettingEntry::FindEntry(uint row_num, uint *cur_row)
    01090 {
    01091   if (row_num == *cur_row) return this;
    01092
    01093   switch (this->flags & SEF_KIND_MASK) {
    01094     case SEF_SETTING_KIND:
    01095       (*cur_row)++;
    01096       break;
    01097     case SEF_SUBTREE_KIND:
    01098       (*cur_row)++; // add one for row containing the title
    01099       if (this->d.sub.folded) {
    01100         break;
    01101       }
    01102
    01103       /* sub-page is visible => search it too */
    01104       return this->d.sub.page->FindEntry(row_num, cur_row);
    01105     default: NOT_REACHED();
    01106   }
    01107   return NULL;
    01108 }
    01109
    01136 uint SettingEntry::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, uint cur_row, uint parent_last)
    01137 {
    01138   if (cur_row >= max_row) return cur_row;
    01139
    01140   bool rtl = _current_text_dir == TD_RTL;
    01141   int offset = rtl ? -4 : 4;
    01142   int level_width = rtl ? -LEVEL_WIDTH : LEVEL_WIDTH;
    01143
    01144   int x = rtl ? right : left;
    01145   int y = base_y;
    01146   if (cur_row >= first_row) {
    01147     int colour = _colour_gradient[COLOUR_ORANGE][4];
    01148     y = base_y + (cur_row - first_row) * SETTING_HEIGHT; // Compute correct y start position
    01149
    01150     /* Draw vertical for parent nesting levels */
    01151     for (uint lvl = 0; lvl < this->level; lvl++) {
    01152       if (!HasBit(parent_last, lvl)) GfxDrawLine(x + offset, y, x + offset, y + SETTING_HEIGHT - 1, colour);
    01153       x += level_width;
    01154     }
    01155     /* draw own |- prefix */
    01156     int halfway_y = y + SETTING_HEIGHT / 2;
    01157     int bottom_y = (flags & SEF_LAST_FIELD) ? halfway_y : y + SETTING_HEIGHT - 1;
    01158     GfxDrawLine(x + offset, y, x + offset, bottom_y, colour);
    01159     /* Small horizontal line from the last vertical line */
    01160     GfxDrawLine(x + offset, halfway_y, x + level_width - offset, halfway_y, colour);
    01161     x += level_width;
    01162   }
    01163
    01164   switch (this->flags & SEF_KIND_MASK) {
    01165     case SEF_SETTING_KIND:
    01166       if (cur_row >= first_row) {
    01167         DrawSetting(settings_ptr, this->d.entry.setting, rtl ? left : x, rtl ? x : right, y, this->flags & SEF_BUTTONS_MASK);
    01168       }
    01169       cur_row++;
    01170       break;
    01171     case SEF_SUBTREE_KIND:
    01172       if (cur_row >= first_row) {
    01173         DrawSprite((this->d.sub.folded ? SPR_CIRCLE_FOLDED : SPR_CIRCLE_UNFOLDED), PAL_NONE, rtl ? x - 8 : x, y + (SETTING_HEIGHT - 11) / 2);
    01174         DrawString(rtl ? left : x + 12, rtl ? x - 12 : right, y, this->d.sub.title);
    01175       }
    01176       cur_row++;
    01177       if (!this->d.sub.folded) {
    01178         if (this->flags & SEF_LAST_FIELD) {
    01179           assert(this->level < sizeof(parent_last));
    01180           SetBit(parent_last, this->level); // Add own last-field state
    01181         }
    01182
    01183         cur_row = this->d.sub.page->Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last);
    01184       }
    01185       break;
    01186     default: NOT_REACHED();
    01187   }
    01188   return cur_row;
    01189 }
    01190
    01191 static const void *ResolveVariableAddress(const GameSettings *settings_ptr, const SettingDesc *sd)
    01192 {
    01193   if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
    01194     if (Company::IsValidID(_local_company) && _game_mode != GM_MENU) {
    01195       return GetVariableAddress(&Company::Get(_local_company)->settings, &sd->save);
    01196     } else {
    01197       return GetVariableAddress(&_settings_client.company, &sd->save);
    01198     }
    01199   } else {
    01200     return GetVariableAddress(settings_ptr, &sd->save);
    01201   }
    01202 }
    01203
    01213 void SettingEntry::DrawSetting(GameSettings *settings_ptr, const SettingDesc *sd, int left, int right, int y, int state)
    01214 {
    01215   const SettingDescBase *sdb = &sd->desc;
    01216   const void *var = ResolveVariableAddress(settings_ptr, sd);
    01217   bool editable = true;
    01218   bool disabled = false;
    01219
    01220   bool rtl = _current_text_dir == TD_RTL;
    01221   uint buttons_left = rtl ? right - 19 : left;
    01222   uint text_left  = left + (rtl ? 0 : 25);
    01223   uint text_right = right - (rtl ? 25 : 0);
    01224   uint button_y = y + (SETTING_HEIGHT - 11) / 2;
    01225
    01226   /* We do not allow changes of some items when we are a client in a networkgame */
    01227   if (!(sd->save.conv & SLF_NO_NETWORK_SYNC) && _networking && !_network_server && !(sdb->flags & SGF_PER_COMPANY)) editable = false;
    01228   if ((sdb->flags & SGF_NETWORK_ONLY) && !_networking) editable = false;
    01229   if ((sdb->flags & SGF_NO_NETWORK) && _networking) editable = false;
    01230
    01231   if (sdb->cmd == SDT_BOOLX) {
    01232     static const Colours _bool_ctabs[2][2] = {{COLOUR_CREAM, COLOUR_RED}, {COLOUR_DARK_GREEN, COLOUR_GREEN}};
    01233     /* Draw checkbox for boolean-value either on/off */
    01234     bool on = ReadValue(var, sd->save.conv) != 0;
    01235
    01236     DrawFrameRect(buttons_left, button_y, buttons_left + 19, button_y + 8, _bool_ctabs[!!on][!!editable], on ? FR_LOWERED : FR_NONE);
    01237     SetDParam(0, on ? STR_CONFIG_SETTING_ON : STR_CONFIG_SETTING_OFF);
    01238   } else {
    01239     int32 value;
    01240
    01241     value = (int32)ReadValue(var, sd->save.conv);
    01242
    01243     /* Draw [<][>] boxes for settings of an integer-type */
    01244     DrawArrowButtons(buttons_left, button_y, COLOUR_YELLOW, state, editable && value != (sdb->flags & SGF_0ISDISABLED ? 0 : sdb->min), editable && (uint32)value != sdb->max);
    01245
    01246     disabled = (value == 0) && (sdb->flags & SGF_0ISDISABLED);
    01247     if (disabled) {
    01248       SetDParam(0, STR_CONFIG_SETTING_DISABLED);
    01249     } else {
    01250       if (sdb->flags & SGF_CURRENCY) {
    01251         SetDParam(0, STR_JUST_CURRENCY);
    01252       } else if (sdb->flags & SGF_MULTISTRING) {
    01253         SetDParam(0, sdb->str - sdb->min + value + 1);
    01254       } else {
    01255         SetDParam(0, (sdb->flags & SGF_NOCOMMA) ? STR_JUST_INT : STR_JUST_COMMA);
    01256       }
    01257       SetDParam(1, value);
    01258     }
    01259   }
    01260   DrawString(text_left, text_right, y, (sdb->str) + disabled);
    01261 }
    01262
    01263
    01264 /* == SettingsPage methods == */
    01265
    01270 void SettingsPage::Init(byte level)
    01271 {
    01272   for (uint field = 0; field < this->num; field++) {
    01273     this->entries[field].Init(level, field + 1 == num);
    01274   }
    01275 }
    01276
    01278 void SettingsPage::FoldAll()
    01279 {
    01280   for (uint field = 0; field < this->num; field++) {
    01281     this->entries[field].FoldAll();
    01282   }
    01283 }
    01284
    01286 uint SettingsPage::Length() const
    01287 {
    01288   uint length = 0;
    01289   for (uint field = 0; field < this->num; field++) {
    01290     length += this->entries[field].Length();
    01291   }
    01292   return length;
    01293 }
    01294
    01301 SettingEntry *SettingsPage::FindEntry(uint row_num, uint *cur_row) const
    01302 {
    01303   SettingEntry *pe = NULL;
    01304
    01305   for (uint field = 0; field < this->num; field++) {
    01306     pe = this->entries[field].FindEntry(row_num, cur_row);
    01307     if (pe != NULL) {
    01308       break;
    01309     }
    01310   }
    01311   return pe;
    01312 }
    01313
    01331 uint SettingsPage::Draw(GameSettings *settings_ptr, int left, int right, int base_y, uint first_row, uint max_row, uint cur_row, uint parent_last) const
    01332 {
    01333   if (cur_row >= max_row) return cur_row;
    01334
    01335   for (uint i = 0; i < this->num; i++) {
    01336     cur_row = this->entries[i].Draw(settings_ptr, left, right, base_y, first_row, max_row, cur_row, parent_last);
    01337     if (cur_row >= max_row) {
    01338       break;
    01339     }
    01340   }
    01341   return cur_row;
    01342 }
    01343
    01344
    01345 static SettingEntry _settings_ui_display[] = {
    01346   SettingEntry("gui.vehicle_speed"),
    01347   SettingEntry("gui.date_format_in_default_names"),
    01348   SettingEntry("gui.population_in_label"),
    01349   SettingEntry("gui.population_in_label_coloured"),
    01350   SettingEntry("gui.measure_tooltip"),
    01351   SettingEntry("gui.loading_indicators"),
    01352   SettingEntry("gui.liveries"),
    01353   SettingEntry("gui.show_track_reservation"),
    01354   SettingEntry("gui.expenses_layout"),
    01355   SettingEntry("gui.smallmap_land_colour"),
    01356   SettingEntry("gui.smallmap_flood_warning"),
    01357 };
    01359 static SettingsPage _settings_ui_display_page = {_settings_ui_display, lengthof(_settings_ui_display)};
    01360
    01361 static SettingEntry _settings_ui_interaction[] = {
    01362   SettingEntry("gui.window_snap_radius"),
    01363   SettingEntry("gui.window_soft_limit"),
    01364   SettingEntry("gui.link_terraform_toolbar"),
    01365   SettingEntry("gui.prefer_teamchat"),
    01366   SettingEntry("gui.autoscroll"),
    01367   SettingEntry("gui.reverse_scroll"),
    01368   SettingEntry("gui.smooth_scroll"),
    01369   SettingEntry("gui.left_mouse_btn_scrolling"),
    01370   /* While the horizontal scrollwheel scrolling is written as general code, only
    01371    *  the cocoa (OSX) driver generates input for it.
    01372    *  Since it's also able to completely disable the scrollwheel will we display it on all platforms anyway */
    01373   SettingEntry("gui.scrollwheel_scrolling"),
    01374   SettingEntry("gui.scrollwheel_multiplier"),
    01375 #ifdef __APPLE__
    01376   /* We might need to emulate a right mouse button on mac */
    01377   SettingEntry("gui.right_mouse_btn_emulation"),
    01378 #endif
    01379 };
    01381 static SettingsPage _settings_ui_interaction_page = {_settings_ui_interaction, lengthof(_settings_ui_interaction)};
    01382
    01383 static SettingEntry _settings_ui_departureboards[] = {
    01384   SettingEntry("gui.max_departures"),
    01385   SettingEntry("gui.max_departure_time"),
    01386   SettingEntry("gui.departure_calc_frequency"),
    01387   SettingEntry("gui.departure_show_vehicle"),
    01388   SettingEntry("gui.departure_show_group"),
    01389   SettingEntry("gui.departure_show_company"),
    01390   SettingEntry("gui.departure_show_vehicle_type"),
    01391   SettingEntry("gui.departure_show_vehicle_color"),
    01392   SettingEntry("gui.departure_larger_font"),
    01393   SettingEntry("gui.departure_destination_type"),
    01394   SettingEntry("gui.departure_show_both"),
    01395   SettingEntry("gui.departure_only_passengers"),
    01396   SettingEntry("gui.departure_smart_terminus"),
    01397   SettingEntry("gui.departure_conditionals"),
    01398   SettingEntry("gui.departure_show_all_stops"),
    01399   SettingEntry("gui.departure_merge_identical"),
    01400 };
    01402 static SettingsPage _settings_ui_departureboards_page = {_settings_ui_departureboards, lengthof(_settings_ui_departureboards)};
    01403
    01404 static SettingEntry _settings_ui[] = {
    01405   SettingEntry(&_settings_ui_display_page, STR_CONFIG_SETTING_DISPLAY_OPTIONS),
    01406   SettingEntry(&_settings_ui_interaction_page, STR_CONFIG_SETTING_INTERACTION),
    01407   SettingEntry(&_settings_ui_departureboards_page, STR_CONFIG_SETTING_DEPARTUREBOARDS),
    01408   SettingEntry("gui.show_finances"),
    01409   SettingEntry("gui.errmsg_duration"),
    01410   SettingEntry("gui.hover_delay"),
    01411   SettingEntry("gui.toolbar_pos"),
    01412   SettingEntry("gui.statusbar_pos"),
    01413   SettingEntry("gui.newgrf_default_palette"),
    01414   SettingEntry("gui.pause_on_newgame"),
    01415   SettingEntry("gui.advanced_vehicle_list"),
    01416   SettingEntry("gui.timetable_in_ticks"),
    01417   SettingEntry("gui.time_in_minutes"),
    01418   SettingEntry("gui.timetable_start_text_entry"),
    01419   SettingEntry("gui.ticks_per_minute"),
    01420   SettingEntry("gui.date_with_time"),
    01421   SettingEntry("gui.timetable_arrival_departure"),
    01422   SettingEntry("gui.quick_goto"),
    01423   SettingEntry("gui.default_rail_type"),
    01424   SettingEntry("gui.disable_unsuitable_building"),
    01425   SettingEntry("gui.persistent_buildingtools"),
    01426   SettingEntry("gui.coloured_news_year"),
    01427 };
    01429 static SettingsPage _settings_ui_page = {_settings_ui, lengthof(_settings_ui)};
    01430
    01431 static SettingEntry _settings_construction_signals[] = {
    01432   SettingEntry("construction.signal_side"),
    01433   SettingEntry("gui.enable_signal_gui"),
    01434   SettingEntry("gui.drag_signals_density"),
    01435   SettingEntry("gui.semaphore_build_before"),
    01436   SettingEntry("gui.default_signal_type"),
    01437   SettingEntry("gui.cycle_signal_types"),
    01438   SettingEntry("construction.maximum_signal_evaluations"),
    01439 };
    01441 static SettingsPage _settings_construction_signals_page = {_settings_construction_signals, lengthof(_settings_construction_signals)};
    01442
    01443 static SettingEntry _settings_construction_trafficlights[] = {
    01444   SettingEntry("construction.traffic_lights"),
    01445   SettingEntry("construction.towns_build_traffic_lights"),
    01446   SettingEntry("construction.allow_building_tls_in_towns"),
    01447   SettingEntry("construction.traffic_lights_green_phase"),
    01448   SettingEntry("construction.max_tlc_size"),
    01449   SettingEntry("construction.max_tlc_distance"),
    01450 };
    01452 static SettingsPage _settings_construction_trafficlights_page = {_settings_construction_trafficlights, lengthof(_settings_construction_trafficlights)};
    01453
    01454 static SettingEntry _settings_construction[] = {
    01455   SettingEntry(&_settings_construction_signals_page, STR_CONFIG_SETTING_CONSTRUCTION_SIGNALS),
    01456   SettingEntry(&_settings_construction_trafficlights_page, STR_CONFIG_SETTING_CONSTRUCTION_TRAFFIC_LIGHTS),
    01457   SettingEntry("construction.allow_more_heightlevels"),
    01458   SettingEntry("construction.build_on_slopes"),
    01459   SettingEntry("construction.autoslope"),
    01460   SettingEntry("construction.extra_dynamite"),
    01461   SettingEntry("construction.max_bridge_length"),
    01462   SettingEntry("construction.max_tunnel_length"),
    01463   SettingEntry("construction.max_chunnel_exit_length"),
    01464   SettingEntry("station.never_expire_airports"),
    01465   SettingEntry("construction.freeform_edges"),
    01466   SettingEntry("construction.extra_tree_placement"),
    01467   SettingEntry("construction.tree_placement_drag_limit"),
    01468   SettingEntry("construction.command_pause_level"),
    01469   SettingEntry("construction.ingame_tree_line_height"),
    01470   SettingEntry("construction.tree_growth_rate"),
    01471   SettingEntry("gui.cp_paste_speed"),
    01472 };
    01474 static SettingsPage _settings_construction_page = {_settings_construction, lengthof(_settings_construction)};
    01475
    01476 static SettingEntry _settings_stations_cargo[] = {
    01477   SettingEntry("order.improved_load"),
    01478   SettingEntry("order.gradual_loading"),
    01479   SettingEntry("order.selectgoods"),
    01480 };
    01482 static SettingsPage _settings_stations_cargo_page = {_settings_stations_cargo, lengthof(_settings_stations_cargo)};
    01483
    01484 static SettingEntry _settings_stations[] = {
    01485   SettingEntry(&_settings_stations_cargo_page, STR_CONFIG_SETTING_STATIONS_CARGOHANDLING),
    01486   SettingEntry("station.adjacent_stations"),
    01487   SettingEntry("station.distant_join_stations"),
    01488   SettingEntry("station.station_spread"),
    01489   SettingEntry("economy.station_noise_level"),
    01490   SettingEntry("station.modified_catchment"),
    01491   SettingEntry("construction.road_stop_on_town_road"),
    01492   SettingEntry("construction.road_stop_on_competitor_road"),
    01493 };
    01495 static SettingsPage _settings_stations_page = {_settings_stations, lengthof(_settings_stations)};
    01496
    01497 static SettingEntry _settings_economy_towns[] = {
    01498   SettingEntry("economy.bribe"),
    01499   SettingEntry("economy.exclusive_rights"),
    01500   SettingEntry("economy.fund_roads"),
    01501   SettingEntry("economy.town_layout"),
    01502   SettingEntry("economy.allow_town_roads"),
    01503   SettingEntry("economy.allow_town_level_crossings"),
    01504   SettingEntry("economy.found_town"),
    01505   SettingEntry("economy.mod_road_rebuild"),
    01506   SettingEntry("economy.town_growth_rate"),
    01507   SettingEntry("economy.town_growth_cargo"),
    01508   SettingEntry("economy.town_pop_need_goods"),
    01509   SettingEntry("economy.larger_town_growth_cargo"),
    01510   SettingEntry("economy.larger_town_pop_need_goods"),
    01511   SettingEntry("economy.larger_towns"),
    01512   SettingEntry("economy.initial_city_size"),
    01513   SettingEntry("economy.town_cargo_factor"),
    01514 };
    01516 static SettingsPage _settings_economy_towns_page = {_settings_economy_towns, lengthof(_settings_economy_towns)};
    01517
    01518 static SettingEntry _settings_economy_industries[] = {
    01519   SettingEntry("construction.raw_industry_construction"),
    01520   SettingEntry("construction.industry_platform"),
    01521   SettingEntry("construction.extra_industry_placement_logic"),
    01522   SettingEntry("economy.multiple_industry_per_town"),
    01523   SettingEntry("game_creation.oil_refinery_limit"),
    01524 };
    01526 static SettingsPage _settings_economy_industries_page = {_settings_economy_industries, lengthof(_settings_economy_industries)};
    01527
    01528 static SettingEntry _settings_economy[] = {
    01529   SettingEntry(&_settings_economy_towns_page, STR_CONFIG_SETTING_ECONOMY_TOWNS),
    01530   SettingEntry(&_settings_economy_industries_page, STR_CONFIG_SETTING_ECONOMY_INDUSTRIES),
    01531   SettingEntry("economy.inflation"),
    01532   SettingEntry("economy.smooth_economy"),
    01533   SettingEntry("economy.feeder_payment_share"),
    01534   SettingEntry("economy.infrastructure_maintenance"),
    01535   SettingEntry("daylength_factor"),
    01536 };
    01538 static SettingsPage _settings_economy_page = {_settings_economy, lengthof(_settings_economy)};
    01539
    01540 static SettingEntry _settings_linkgraph[] = {
    01541   SettingEntry("linkgraph.recalc_interval"),
    01542   SettingEntry("linkgraph.distribution_pax"),
    01543   SettingEntry("linkgraph.distribution_mail"),
    01544   SettingEntry("linkgraph.distribution_express"),
    01545   SettingEntry("linkgraph.distribution_armoured"),
    01546   SettingEntry("linkgraph.distribution_default"),
    01547   SettingEntry("linkgraph.accuracy"),
    01548   SettingEntry("linkgraph.demand_distance"),
    01549   SettingEntry("linkgraph.demand_size"),
    01550   SettingEntry("linkgraph.short_path_saturation"),
    01551   SettingEntry("linkgraph.no_overload_links"),
    01552   SettingEntry("gui.linkgraph_companies"),
    01553 };
    01555 static SettingsPage _settings_linkgraph_page = {_settings_linkgraph, lengthof(_settings_linkgraph)};
    01556
    01557 static SettingEntry _settings_ai_npc[] = {
    01558   SettingEntry("ai.ai_in_multiplayer"),
    01559   SettingEntry("ai.ai_disable_veh_train"),
    01560   SettingEntry("ai.ai_disable_veh_roadveh"),
    01561   SettingEntry("ai.ai_disable_veh_aircraft"),
    01562   SettingEntry("ai.ai_disable_veh_ship"),
    01563   SettingEntry("ai.ai_max_opcode_till_suspend"),
    01564 };
    01566 static SettingsPage _settings_ai_npc_page = {_settings_ai_npc, lengthof(_settings_ai_npc)};
    01567
    01568 static SettingEntry _settings_sharing[] = {
    01569   SettingEntry("economy.infrastructure_sharing[0]"),
    01570   SettingEntry("economy.infrastructure_sharing[1]"),
    01571   SettingEntry("economy.infrastructure_sharing[2]"),
    01572   SettingEntry("economy.infrastructure_sharing[3]"),
    01573   SettingEntry("economy.sharing_fee[0]"),
    01574   SettingEntry("economy.sharing_fee[1]"),
    01575   SettingEntry("economy.sharing_fee[2]"),
    01576   SettingEntry("economy.sharing_fee[3]"),
    01577   SettingEntry("economy.sharing_payment_in_debt"),
    01578 };
    01580 static SettingsPage _settings_sharing_page = {_settings_sharing, lengthof(_settings_sharing)};
    01581
    01582 static SettingEntry _settings_ai[] = {
    01583   SettingEntry(&_settings_ai_npc_page, STR_CONFIG_SETTING_AI_NPC),
    01584   SettingEntry(&_settings_sharing_page, STR_CONFIG_SETTING_SHARING),
    01585   SettingEntry("economy.give_money"),
    01586   SettingEntry("economy.allow_shares"),
    01587 };
    01589 static SettingsPage _settings_ai_page = {_settings_ai, lengthof(_settings_ai)};
    01590
    01591 static SettingEntry _settings_vehicles_routing[] = {
    01592   SettingEntry("pf.pathfinder_for_trains"),
    01593   SettingEntry("pf.forbid_90_deg"),
    01594   SettingEntry("pf.back_of_one_way_pbs_waiting_point"),
    01595   SettingEntry("pf.pathfinder_for_roadvehs"),
    01596   SettingEntry("pf.roadveh_queue"),
    01597   SettingEntry("pf.pathfinder_for_ships"),
    01598 };
    01600 static SettingsPage _settings_vehicles_routing_page = {_settings_vehicles_routing, lengthof(_settings_vehicles_routing)};
    01601
    01602 static SettingEntry _settings_vehicles_autorenew[] = {
    01603   SettingEntry("company.engine_renew"),
    01604   SettingEntry("company.engine_renew_months"),
    01605   SettingEntry("company.engine_renew_money"),
    01606 };
    01608 static SettingsPage _settings_vehicles_autorenew_page = {_settings_vehicles_autorenew, lengthof(_settings_vehicles_autorenew)};
    01609
    01610 static SettingEntry _settings_vehicles_servicing[] = {
    01611   SettingEntry("vehicle.servint_ispercent"),
    01612   SettingEntry("vehicle.servint_trains"),
    01613   SettingEntry("vehicle.servint_roadveh"),
    01614   SettingEntry("vehicle.servint_ships"),
    01615   SettingEntry("vehicle.servint_aircraft"),
    01616   SettingEntry("order.no_servicing_if_no_breakdowns"),
    01617   SettingEntry("order.serviceathelipad"),
    01618   SettingEntry("vehicle.improved_breakdowns"),
    01619 };
    01621 static SettingsPage _settings_vehicles_servicing_page = {_settings_vehicles_servicing, lengthof(_settings_vehicles_servicing)};
    01622
    01623 static SettingEntry _settings_vehicles_trains[] = {
    01624   SettingEntry("pf.reverse_at_signals"),
    01625   SettingEntry("vehicle.train_acceleration_model"),
    01626   SettingEntry("vehicle.train_slope_steepness"),
    01627   SettingEntry("vehicle.max_train_length"),
    01628   SettingEntry("vehicle.wagon_speed_limits"),
    01629   SettingEntry("vehicle.disable_elrails"),
    01630   SettingEntry("vehicle.freight_trains"),
    01631   SettingEntry("gui.stop_location"),
    01632 };
    01634 static SettingsPage _settings_vehicles_trains_page = {_settings_vehicles_trains, lengthof(_settings_vehicles_trains)};
    01635
    01636 static SettingEntry _settings_vehicles[] = {
    01637   SettingEntry(&_settings_vehicles_routing_page, STR_CONFIG_SETTING_VEHICLES_ROUTING),
    01638   SettingEntry(&_settings_vehicles_autorenew_page, STR_CONFIG_SETTING_VEHICLES_AUTORENEW),
    01639   SettingEntry(&_settings_vehicles_servicing_page, STR_CONFIG_SETTING_VEHICLES_SERVICING),
    01640   SettingEntry(&_settings_vehicles_trains_page, STR_CONFIG_SETTING_VEHICLES_TRAINS),
    01641   SettingEntry("order.gotodepot"),
    01642   SettingEntry("gui.new_nonstop"),
    01643   SettingEntry("gui.order_review_system"),
    01644   SettingEntry("gui.vehicle_income_warn"),
    01645   SettingEntry("gui.lost_vehicle_warn"),
    01646   SettingEntry("vehicle.never_expire_vehicles"),
    01647   SettingEntry("vehicle.max_trains"),
    01648   SettingEntry("vehicle.max_roadveh"),
    01649   SettingEntry("vehicle.max_aircraft"),
    01650   SettingEntry("vehicle.max_ships"),
    01651   SettingEntry("vehicle.plane_speed"),
    01652   SettingEntry("vehicle.plane_crashes"),
    01653   SettingEntry("order.timetable_separation"),
    01654   SettingEntry("order.timetabling"),
    01655   SettingEntry("vehicle.dynamic_engines"),
    01656   SettingEntry("vehicle.roadveh_acceleration_model"),
    01657   SettingEntry("vehicle.roadveh_slope_steepness"),
    01658   SettingEntry("vehicle.smoke_amount"),
    01659 };
    01661 static SettingsPage _settings_vehicles_page = {_settings_vehicles, lengthof(_settings_vehicles)};
    01662
    01663 static SettingEntry _settings_main[] = {
    01664   SettingEntry(&_settings_ui_page,           STR_CONFIG_SETTING_GUI),
    01665   SettingEntry(&_settings_construction_page, STR_CONFIG_SETTING_CONSTRUCTION),
    01666   SettingEntry(&_settings_vehicles_page,     STR_CONFIG_SETTING_VEHICLES),
    01667   SettingEntry(&_settings_stations_page,     STR_CONFIG_SETTING_STATIONS),
    01668   SettingEntry(&_settings_economy_page,      STR_CONFIG_SETTING_ECONOMY),
    01669   SettingEntry(&_settings_linkgraph_page,    STR_CONFIG_SETTING_LINKGRAPH),
    01670   SettingEntry(&_settings_ai_page,           STR_CONFIG_SETTING_AI),
    01671 };
    01672
    01674 static SettingsPage _settings_main_page = {_settings_main, lengthof(_settings_main)};
    01675
    01677 enum GameSettingsWidgets {
    01678   SETTINGSEL_OPTIONSPANEL,
    01679   SETTINGSEL_SCROLLBAR,
    01680 };
    01681
    01682 struct GameSettingsWindow : Window {
    01683   static const int SETTINGTREE_LEFT_OFFSET   = 5;
    01684   static const int SETTINGTREE_RIGHT_OFFSET  = 5;
    01685   static const int SETTINGTREE_TOP_OFFSET    = 5;
    01686   static const int SETTINGTREE_BOTTOM_OFFSET = 5;
    01687
    01688   static GameSettings *settings_ptr;
    01689
    01690   SettingEntry *valuewindow_entry;
    01691   SettingEntry *clicked_entry;
    01692
    01693   Scrollbar *vscroll;
    01694
    01695   GameSettingsWindow(const WindowDesc *desc) : Window()
    01696   {
    01697     static bool first_time = true;
    01698
    01699     settings_ptr = &GetGameSettings();
    01700
    01701     /* Build up the dynamic settings-array only once per OpenTTD session */
    01702     if (first_time) {
    01703       _settings_main_page.Init();
    01704       first_time = false;
    01705     } else {
    01706       _settings_main_page.FoldAll(); // Close all sub-pages
    01707     }
    01708
    01709     this->valuewindow_entry = NULL; // No setting entry for which a entry window is opened
    01710     this->clicked_entry = NULL; // No numeric setting buttons are depressed
    01711
    01712     this->CreateNestedTree(desc);
    01713     this->vscroll = this->GetScrollbar(SETTINGSEL_SCROLLBAR);
    01714     this->FinishInitNested(desc, 0);
    01715
    01716     this->vscroll->SetCount(_settings_main_page.Length());
    01717   }
    01718
    01719   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01720   {
    01721     if (widget != SETTINGSEL_OPTIONSPANEL) return;
    01722
    01723     resize->height = SETTING_HEIGHT = max(11, FONT_HEIGHT_NORMAL + 1);
    01724     resize->width  = 1;
    01725
    01726     size->height = 5 * resize->height + SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET;
    01727   }
    01728
    01729   virtual void DrawWidget(const Rect &r, int widget) const
    01730   {
    01731     if (widget != SETTINGSEL_OPTIONSPANEL) return;
    01732
    01733     _settings_main_page.Draw(settings_ptr, r.left + SETTINGTREE_LEFT_OFFSET, r.right - SETTINGTREE_RIGHT_OFFSET, r.top + SETTINGTREE_TOP_OFFSET,
    01734         this->vscroll->GetPosition(), this->vscroll->GetPosition() + this->vscroll->GetCapacity());
    01735   }
    01736
    01737   virtual void OnClick(Point pt, int widget, int click_count)
    01738   {
    01739     if (widget != SETTINGSEL_OPTIONSPANEL) return;
    01740
    01741     uint btn = this->vscroll->GetScrolledRowFromWidget(pt.y, this, SETTINGSEL_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET - 1);
    01742     if (btn == INT_MAX) return;
    01743
    01744     uint cur_row = 0;
    01745     SettingEntry *pe = _settings_main_page.FindEntry(btn, &cur_row);
    01746
    01747     if (pe == NULL) return;  // Clicked below the last setting of the page
    01748
    01749     int x = (_current_text_dir == TD_RTL ? this->width - pt.x : pt.x) - SETTINGTREE_LEFT_OFFSET - (pe->level + 1) * LEVEL_WIDTH;  // Shift x coordinate
    01750     if (x < 0) return;  // Clicked left of the entry
    01751
    01752     if ((pe->flags & SEF_KIND_MASK) == SEF_SUBTREE_KIND) {
    01753       pe->d.sub.folded = !pe->d.sub.folded; // Flip 'folded'-ness of the sub-page
    01754
    01755       this->vscroll->SetCount(_settings_main_page.Length());
    01756       this->SetDirty();
    01757       return;
    01758     }
    01759
    01760     assert((pe->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
    01761     const SettingDesc *sd = pe->d.entry.setting;
    01762
    01763     /* return if action is only active in network, or only settable by server */
    01764     if (!(sd->save.conv & SLF_NO_NETWORK_SYNC) && _networking && !_network_server && !(sd->desc.flags & SGF_PER_COMPANY)) return;
    01765     if ((sd->desc.flags & SGF_NETWORK_ONLY) && !_networking) return;
    01766     if ((sd->desc.flags & SGF_NO_NETWORK) && _networking) return;
    01767
    01768     const void *var = ResolveVariableAddress(settings_ptr, sd);
    01769     int32 value = (int32)ReadValue(var, sd->save.conv);
    01770
    01771     /* clicked on the icon on the left side. Either scroller or bool on/off */
    01772     if (x < 21) {
    01773       const SettingDescBase *sdb = &sd->desc;
    01774       int32 oldvalue = value;
    01775
    01776       switch (sdb->cmd) {
    01777         case SDT_BOOLX: value ^= 1; break;
    01778         case SDT_ONEOFMANY:
    01779         case SDT_NUMX: {
    01780           /* Add a dynamic step-size to the scroller. In a maximum of
    01781            * 50-steps you should be able to get from min to max,
    01782            * unless specified otherwise in the 'interval' variable
    01783            * of the current setting. */
    01784           uint32 step = (sdb->interval == 0) ? ((sdb->max - sdb->min) / 50) : sdb->interval;
    01785           if (step == 0) step = 1;
    01786
    01787           /* don't allow too fast scrolling */
    01788           if ((this->flags4 & WF_TIMEOUT_MASK) > WF_TIMEOUT_TRIGGER) {
    01789             _left_button_clicked = false;
    01790             return;
    01791           }
    01792
    01793           /* Increase or decrease the value and clamp it to extremes */
    01794           if (x >= 10) {
    01795             value += step;
    01796             if (sdb->min < 0) {
    01797               assert((int32)sdb->max >= 0);
    01798               if (value > (int32)sdb->max) value = (int32)sdb->max;
    01799             } else {
    01800               if ((uint32)value > sdb->max) value = (int32)sdb->max;
    01801             }
    01802             if (value < sdb->min) value = sdb->min; // skip between "disabled" and minimum
    01803           } else {
    01804             value -= step;
    01805             if (value < sdb->min) value = (sdb->flags & SGF_0ISDISABLED) ? 0 : sdb->min;
    01806           }
    01807
    01808           /* Set up scroller timeout for numeric values */
    01809           if (value != oldvalue && !(sd->desc.flags & SGF_MULTISTRING)) {
    01810             if (this->clicked_entry != NULL) { // Release previous buttons if any
    01811               this->clicked_entry->SetButtons(0);
    01812             }
    01813             this->clicked_entry = pe;
    01814             this->clicked_entry->SetButtons((x >= 10) != (_current_text_dir == TD_RTL) ? SEF_RIGHT_DEPRESSED : SEF_LEFT_DEPRESSED);
    01815             this->flags4 |= WF_TIMEOUT_BEGIN;
    01816             _left_button_clicked = false;
    01817           }
    01818           break;
    01819         }
    01820
    01821         default: NOT_REACHED();
    01822       }
    01823
    01824       if (value != oldvalue) {
    01825         if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
    01826           SetCompanySetting(pe->d.entry.index, value);
    01827         } else {
    01828           SetSettingValue(pe->d.entry.index, value);
    01829         }
    01830         this->SetDirty();
    01831       }
    01832     } else {
    01833       /* only open editbox for types that its sensible for */
    01834       if (sd->desc.cmd != SDT_BOOLX && !(sd->desc.flags & SGF_MULTISTRING)) {
    01835         /* Show the correct currency-translated value */
    01836         if (sd->desc.flags & SGF_CURRENCY) value *= _currency->rate;
    01837
    01838         this->valuewindow_entry = pe;
    01839         SetDParam(0, value);
    01840         ShowQueryString(STR_JUST_INT, STR_CONFIG_SETTING_QUERY_CAPTION, 10, this, CS_NUMERAL, QSF_ENABLE_DEFAULT);
    01841       }
    01842     }
    01843   }
    01844
    01845   virtual void OnTimeout()
    01846   {
    01847     if (this->clicked_entry != NULL) { // On timeout, release any depressed buttons
    01848       this->clicked_entry->SetButtons(0);
    01849       this->clicked_entry = NULL;
    01850       this->SetDirty();
    01851     }
    01852   }
    01853
    01854   virtual void OnQueryTextFinished(char *str)
    01855   {
    01856     /* The user pressed cancel */
    01857     if (str == NULL) return;
    01858
    01859     assert(this->valuewindow_entry != NULL);
    01860     assert((this->valuewindow_entry->flags & SEF_KIND_MASK) == SEF_SETTING_KIND);
    01861     const SettingDesc *sd = this->valuewindow_entry->d.entry.setting;
    01862
    01863     int32 value;
    01864     if (!StrEmpty(str)) {
    01865       value = atoi(str);
    01866
    01867       /* Save the correct currency-translated value */
    01868       if (sd->desc.flags & SGF_CURRENCY) value /= _currency->rate;
    01869     } else {
    01870       value = (int32)(size_t)sd->desc.def;
    01871     }
    01872
    01873     if ((sd->desc.flags & SGF_PER_COMPANY) != 0) {
    01874       SetCompanySetting(this->valuewindow_entry->d.entry.index, value);
    01875     } else {
    01876       SetSettingValue(this->valuewindow_entry->d.entry.index, value);
    01877     }
    01878     this->SetDirty();
    01879   }
    01880
    01881   virtual void OnResize()
    01882   {
    01883     this->vscroll->SetCapacityFromWidget(this, SETTINGSEL_OPTIONSPANEL, SETTINGTREE_TOP_OFFSET + SETTINGTREE_BOTTOM_OFFSET);
    01884   }
    01885 };
    01886
    01887 GameSettings *GameSettingsWindow::settings_ptr = NULL;
    01888
    01889 static const NWidgetPart _nested_settings_selection_widgets[] = {
    01890   NWidget(NWID_HORIZONTAL),
    01891     NWidget(WWT_CLOSEBOX, COLOUR_MAUVE),
    01892     NWidget(WWT_CAPTION, COLOUR_MAUVE), SetDataTip(STR_CONFIG_SETTING_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    01893   EndContainer(),
    01894   NWidget(NWID_HORIZONTAL),
    01895     NWidget(WWT_PANEL, COLOUR_MAUVE, SETTINGSEL_OPTIONSPANEL), SetMinimalSize(400, 174), SetScrollbar(SETTINGSEL_SCROLLBAR), EndContainer(),
    01896     NWidget(NWID_VERTICAL),
    01897       NWidget(NWID_VSCROLLBAR, COLOUR_MAUVE, SETTINGSEL_SCROLLBAR),
    01898       NWidget(WWT_RESIZEBOX, COLOUR_MAUVE),
    01899     EndContainer(),
    01900   EndContainer(),
    01901 };
    01902
    01903 static const WindowDesc _settings_selection_desc(
    01904   WDP_CENTER, 450, 397,
    01905   WC_GAME_OPTIONS, WC_NONE,
    01906   0,
    01907   _nested_settings_selection_widgets, lengthof(_nested_settings_selection_widgets)
    01908 );
    01909
    01911 void ShowGameSettings()
    01912 {
    01913   DeleteWindowById(WC_GAME_OPTIONS, 0);
    01914   new GameSettingsWindow(&_settings_selection_desc);
    01915 }
    01916
    01917
    01927 void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right)
    01928 {
    01929   int colour = _colour_gradient[button_colour][2];
    01930
    01931   DrawFrameRect(x,      y + 1, x +  9, y + 9, button_colour, (state == 1) ? FR_LOWERED : FR_NONE);
    01932   DrawFrameRect(x + 10, y + 1, x + 19, y + 9, button_colour, (state == 2) ? FR_LOWERED : FR_NONE);
    01933   DrawSprite(SPR_ARROW_LEFT, PAL_NONE, x + WD_IMGBTN_LEFT, y + WD_IMGBTN_TOP);
    01934   DrawSprite(SPR_ARROW_RIGHT, PAL_NONE, x + WD_IMGBTN_LEFT + 10, y + WD_IMGBTN_TOP);
    01935
    01936   /* Grey out the buttons that aren't clickable */
    01937   bool rtl = _current_text_dir == TD_RTL;
    01938   if (rtl ? !clickable_right : !clickable_left) {
    01939     GfxFillRect(x +  1, y + 1, x +  1 + 8, y + 8, colour, FILLRECT_CHECKER);
    01940   }
    01941   if (rtl ? !clickable_left : !clickable_right) {
    01942     GfxFillRect(x + 11, y + 1, x + 11 + 8, y + 8, colour, FILLRECT_CHECKER);
    01943   }
    01944 }
    01945
    01947 enum CustomCurrencyWidgets {
    01948   CUSTCURR_RATE_DOWN,
    01949   CUSTCURR_RATE_UP,
    01950   CUSTCURR_RATE,
    01951   CUSTCURR_SEPARATOR_EDIT,
    01952   CUSTCURR_SEPARATOR,
    01953   CUSTCURR_PREFIX_EDIT,
    01954   CUSTCURR_PREFIX,
    01955   CUSTCURR_SUFFIX_EDIT,
    01956   CUSTCURR_SUFFIX,
    01957   CUSTCURR_YEAR_DOWN,
    01958   CUSTCURR_YEAR_UP,
    01959   CUSTCURR_YEAR,
    01960   CUSTCURR_PREVIEW,
    01961 };
    01962
    01963 struct CustomCurrencyWindow : Window {
    01964   int query_widget;
    01965
    01966   CustomCurrencyWindow(const WindowDesc *desc) : Window()
    01967   {
    01968     this->InitNested(desc);
    01969
    01970     SetButtonState();
    01971   }
    01972
    01973   void SetButtonState()
    01974   {
    01975     this->SetWidgetDisabledState(CUSTCURR_RATE_DOWN, _custom_currency.rate == 1);
    01976     this->SetWidgetDisabledState(CUSTCURR_RATE_UP, _custom_currency.rate == UINT16_MAX);
    01977     this->SetWidgetDisabledState(CUSTCURR_YEAR_DOWN, _custom_currency.to_euro == CF_NOEURO);
    01978     this->SetWidgetDisabledState(CUSTCURR_YEAR_UP, _custom_currency.to_euro == MAX_YEAR);
    01979   }
    01980
    01981   virtual void SetStringParameters(int widget) const
    01982   {
    01983     switch (widget) {
    01984       case CUSTCURR_RATE:      SetDParam(0, 1); SetDParam(1, 1);            break;
    01985       case CUSTCURR_SEPARATOR: SetDParamStr(0, _custom_currency.separator); break;
    01986       case CUSTCURR_PREFIX:    SetDParamStr(0, _custom_currency.prefix);    break;
    01987       case CUSTCURR_SUFFIX:    SetDParamStr(0, _custom_currency.suffix);    break;
    01988       case CUSTCURR_YEAR:
    01989         SetDParam(0, (_custom_currency.to_euro != CF_NOEURO) ? STR_CURRENCY_SWITCH_TO_EURO : STR_CURRENCY_SWITCH_TO_EURO_NEVER);
    01990         SetDParam(1, _custom_currency.to_euro);
    01991         break;
    01992
    01993       case CUSTCURR_PREVIEW:
    01994         SetDParam(0, 10000);
    01995         break;
    01996     }
    01997   }
    01998
    01999   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    02000   {
    02001     switch (widget) {
    02002       /* Set the appropriate width for the edit 'buttons' */
    02003       case CUSTCURR_SEPARATOR_EDIT:
    02004       case CUSTCURR_PREFIX_EDIT:
    02005       case CUSTCURR_SUFFIX_EDIT:
    02006         size->width  = this->GetWidget<NWidgetBase>(CUSTCURR_RATE_DOWN)->smallest_x + this->GetWidget<NWidgetBase>(CUSTCURR_RATE_UP)->smallest_x;
    02007         break;
    02008
    02009       /* Make sure the window is wide enough for the widest exchange rate */
    02010       case CUSTCURR_RATE:
    02011         SetDParam(0, 1);
    02012         SetDParam(1, INT32_MAX);
    02013         *size = GetStringBoundingBox(STR_CURRENCY_EXCHANGE_RATE);
    02014         break;
    02015     }
    02016   }
    02017
    02018   virtual void OnClick(Point pt, int widget, int click_count)
    02019   {
    02020     int line = 0;
    02021     int len = 0;
    02022     StringID str = 0;
    02023     CharSetFilter afilter = CS_ALPHANUMERAL;
    02024
    02025     switch (widget) {
    02026       case CUSTCURR_RATE_DOWN:
    02027         if (_custom_currency.rate > 1) _custom_currency.rate--;
    02028         if (_custom_currency.rate == 1) this->DisableWidget(CUSTCURR_RATE_DOWN);
    02029         this->EnableWidget(CUSTCURR_RATE_UP);
    02030         break;
    02031
    02032       case CUSTCURR_RATE_UP:
    02033         if (_custom_currency.rate < UINT16_MAX) _custom_currency.rate++;
    02034         if (_custom_currency.rate == UINT16_MAX) this->DisableWidget(CUSTCURR_RATE_UP);
    02035         this->EnableWidget(CUSTCURR_RATE_DOWN);
    02036         break;
    02037
    02038       case CUSTCURR_RATE:
    02039         SetDParam(0, _custom_currency.rate);
    02040         str = STR_JUST_INT;
    02041         len = 5;
    02042         line = CUSTCURR_RATE;
    02043         afilter = CS_NUMERAL;
    02044         break;
    02045
    02046       case CUSTCURR_SEPARATOR_EDIT:
    02047       case CUSTCURR_SEPARATOR:
    02048         SetDParamStr(0, _custom_currency.separator);
    02049         str = STR_JUST_RAW_STRING;
    02050         len = 1;
    02051         line = CUSTCURR_SEPARATOR;
    02052         break;
    02053
    02054       case CUSTCURR_PREFIX_EDIT:
    02055       case CUSTCURR_PREFIX:
    02056         SetDParamStr(0, _custom_currency.prefix);
    02057         str = STR_JUST_RAW_STRING;
    02058         len = 12;
    02059         line = CUSTCURR_PREFIX;
    02060         break;
    02061
    02062       case CUSTCURR_SUFFIX_EDIT:
    02063       case CUSTCURR_SUFFIX:
    02064         SetDParamStr(0, _custom_currency.suffix);
    02065         str = STR_JUST_RAW_STRING;
    02066         len = 12;
    02067         line = CUSTCURR_SUFFIX;
    02068         break;
    02069
    02070       case CUSTCURR_YEAR_DOWN:
    02071         _custom_currency.to_euro = (_custom_currency.to_euro <= 2000) ? CF_NOEURO : _custom_currency.to_euro - 1;
    02072         if (_custom_currency.to_euro == CF_NOEURO) this->DisableWidget(CUSTCURR_YEAR_DOWN);
    02073         this->EnableWidget(CUSTCURR_YEAR_UP);
    02074         break;
    02075
    02076       case CUSTCURR_YEAR_UP:
    02077         _custom_currency.to_euro = Clamp(_custom_currency.to_euro + 1, 2000, MAX_YEAR);
    02078         if (_custom_currency.to_euro == MAX_YEAR) this->DisableWidget(CUSTCURR_YEAR_UP);
    02079         this->EnableWidget(CUSTCURR_YEAR_DOWN);
    02080         break;
    02081
    02082       case CUSTCURR_YEAR:
    02083         SetDParam(0, _custom_currency.to_euro);
    02084         str = STR_JUST_INT;
    02085         len = 7;
    02086         line = CUSTCURR_YEAR;
    02087         afilter = CS_NUMERAL;
    02088         break;
    02089     }
    02090
    02091     if (len != 0) {
    02092       this->query_widget = line;
    02093       ShowQueryString(str, STR_CURRENCY_CHANGE_PARAMETER, len + 1, this, afilter, QSF_NONE);
    02094     }
    02095
    02096     this->flags4 |= WF_TIMEOUT_BEGIN;
    02097     this->SetDirty();
    02098   }
    02099
    02100   virtual void OnQueryTextFinished(char *str)
    02101   {
    02102     if (str == NULL) return;
    02103
    02104     switch (this->query_widget) {
    02105       case CUSTCURR_RATE:
    02106         _custom_currency.rate = Clamp(atoi(str), 1, UINT16_MAX);
    02107         break;
    02108
    02109       case CUSTCURR_SEPARATOR: // Thousands seperator
    02110         strecpy(_custom_currency.separator, str, lastof(_custom_currency.separator));
    02111         break;
    02112
    02113       case CUSTCURR_PREFIX:
    02114         strecpy(_custom_currency.prefix, str, lastof(_custom_currency.prefix));
    02115         break;
    02116
    02117       case CUSTCURR_SUFFIX:
    02118         strecpy(_custom_currency.suffix, str, lastof(_custom_currency.suffix));
    02119         break;
    02120
    02121       case CUSTCURR_YEAR: { // Year to switch to euro
    02122         int val = atoi(str);
    02123
    02124         _custom_currency.to_euro = (val < 2000 ? CF_NOEURO : min(val, MAX_YEAR));
    02125         break;
    02126       }
    02127     }
    02128     MarkWholeScreenDirty();
    02129     SetButtonState();
    02130   }
    02131
    02132   virtual void OnTimeout()
    02133   {
    02134     this->SetDirty();
    02135   }
    02136 };
    02137
    02138 static const NWidgetPart _nested_cust_currency_widgets[] = {
    02139   NWidget(NWID_HORIZONTAL),
    02140     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    02141     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_CURRENCY_WINDOW, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    02142   EndContainer(),
    02143   NWidget(WWT_PANEL, COLOUR_GREY),
    02144     NWidget(NWID_VERTICAL, NC_EQUALSIZE), SetPIP(7, 3, 0),
    02145       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
    02146         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_RATE_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_EXCHANGE_RATE_TOOLTIP),
    02147         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_RATE_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_EXCHANGE_RATE_TOOLTIP),
    02148         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
    02149         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_RATE), SetDataTip(STR_CURRENCY_EXCHANGE_RATE, STR_CURRENCY_SET_EXCHANGE_RATE_TOOLTIP), SetFill(1, 0),
    02150       EndContainer(),
    02151       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
    02152         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_SEPARATOR_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(0, 1),
    02153         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
    02154         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_SEPARATOR), SetDataTip(STR_CURRENCY_SEPARATOR, STR_CURRENCY_SET_CUSTOM_CURRENCY_SEPARATOR_TOOLTIP), SetFill(1, 0),
    02155       EndContainer(),
    02156       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
    02157         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_PREFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(0, 1),
    02158         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
    02159         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_PREFIX), SetDataTip(STR_CURRENCY_PREFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_PREFIX_TOOLTIP), SetFill(1, 0),
    02160       EndContainer(),
    02161       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
    02162         NWidget(WWT_PUSHBTN, COLOUR_DARK_BLUE, CUSTCURR_SUFFIX_EDIT), SetDataTip(0x0, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(0, 1),
    02163         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
    02164         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_SUFFIX), SetDataTip(STR_CURRENCY_SUFFIX, STR_CURRENCY_SET_CUSTOM_CURRENCY_SUFFIX_TOOLTIP), SetFill(1, 0),
    02165       EndContainer(),
    02166       NWidget(NWID_HORIZONTAL), SetPIP(10, 0, 5),
    02167         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_YEAR_DOWN), SetDataTip(AWV_DECREASE, STR_CURRENCY_DECREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
    02168         NWidget(WWT_PUSHARROWBTN, COLOUR_YELLOW, CUSTCURR_YEAR_UP), SetDataTip(AWV_INCREASE, STR_CURRENCY_INCREASE_CUSTOM_CURRENCY_TO_EURO_TOOLTIP),
    02169         NWidget(NWID_SPACER), SetMinimalSize(5, 0),
    02170         NWidget(WWT_TEXT, COLOUR_BLUE, CUSTCURR_YEAR), SetDataTip(STR_JUST_STRING, STR_CURRENCY_SET_CUSTOM_CURRENCY_TO_EURO_TOOLTIP), SetFill(1, 0),
    02171       EndContainer(),
    02172     EndContainer(),
    02173     NWidget(WWT_LABEL, COLOUR_BLUE, CUSTCURR_PREVIEW),
    02174                 SetDataTip(STR_CURRENCY_PREVIEW, STR_CURRENCY_CUSTOM_CURRENCY_PREVIEW_TOOLTIP), SetPadding(15, 1, 18, 2),
    02175   EndContainer(),
    02176 };
    02177
    02178 static const WindowDesc _cust_currency_desc(
    02179   WDP_CENTER, 0, 0,
    02180   WC_CUSTOM_CURRENCY, WC_NONE,
    02181   WDF_UNCLICK_BUTTONS,
    02182   _nested_cust_currency_widgets, lengthof(_nested_cust_currency_widgets)
    02183 );
    02184
    02186 static void ShowCustCurrency()
    02187 {
    02188   DeleteWindowById(WC_CUSTOM_CURRENCY, 0);
    02189   new CustomCurrencyWindow(&_cust_currency_desc);
    02190 }