# misc_gui.cpp

Go to the documentation of this file.

    00001 /* $Id: misc_gui.cpp 25529 2013-06-30 09:05:55Z rubidium $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013 #include "debug.h"
    00014 #include "landscape.h"
    00015 #include "error.h"
    00016 #include "gui.h"
    00017 #include "command_func.h"
    00018 #include "company_func.h"
    00019 #include "town.h"
    00020 #include "string_func.h"
    00021 #include "company_base.h"
    00022 #include "texteff.hpp"
    00023 #include "strings_func.h"
    00024 #include "window_func.h"
    00025 #include "querystring_gui.h"
    00026 #include "core/geometry_func.hpp"
    00027 #include "newgrf_debug.h"
    00028
    00029 #include "widgets/misc_widget.h"
    00030
    00031 #include "table/strings.h"
    00032
    00034 enum OskActivation {
    00035   OSKA_DISABLED,
    00036   OSKA_DOUBLE_CLICK,
    00037   OSKA_SINGLE_CLICK,
    00038   OSKA_IMMEDIATELY,
    00039 };
    00040
    00041
    00042 static const NWidgetPart _nested_land_info_widgets[] = {
    00043   NWidget(NWID_HORIZONTAL),
    00044     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00045     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_LAND_AREA_INFORMATION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00046     NWidget(WWT_DEBUGBOX, COLOUR_GREY),
    00047   EndContainer(),
    00048   NWidget(WWT_PANEL, COLOUR_GREY, WID_LI_BACKGROUND), EndContainer(),
    00049 };
    00050
    00051 static const WindowDesc _land_info_desc(
    00052   WDP_AUTO, 0, 0,
    00053   WC_LAND_INFO, WC_NONE,
    00054   0,
    00055   _nested_land_info_widgets, lengthof(_nested_land_info_widgets)
    00056 );
    00057
    00058 class LandInfoWindow : public Window {
    00059   enum LandInfoLines {
    00060     LAND_INFO_CENTERED_LINES   = 12,
    00061     LAND_INFO_MULTICENTER_LINE = LAND_INFO_CENTERED_LINES,
    00062     LAND_INFO_LINE_END,
    00063   };
    00064
    00065   static const uint LAND_INFO_LINE_BUFF_SIZE = 512;
    00066
    00067 public:
    00068   char landinfo_data[LAND_INFO_LINE_END][LAND_INFO_LINE_BUFF_SIZE];
    00069   TileIndex tile;
    00070
    00071   virtual void DrawWidget(const Rect &r, int widget) const
    00072   {
    00073     if (widget != WID_LI_BACKGROUND) return;
    00074
    00075     uint y = r.top + WD_TEXTPANEL_TOP;
    00076     for (uint i = 0; i < LAND_INFO_CENTERED_LINES; i++) {
    00077       if (StrEmpty(this->landinfo_data[i])) break;
    00078
    00079       DrawString(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, y, this->landinfo_data[i], i == 0 ? TC_LIGHT_BLUE : TC_FROMSTRING, SA_HOR_CENTER);
    00080       y += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
    00081       if (i == 0) y += 4;
    00082     }
    00083
    00084     if (!StrEmpty(this->landinfo_data[LAND_INFO_MULTICENTER_LINE])) {
    00085       SetDParamStr(0, this->landinfo_data[LAND_INFO_MULTICENTER_LINE]);
    00086       DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, y, r.bottom - WD_TEXTPANEL_BOTTOM, STR_JUST_RAW_STRING, TC_FROMSTRING, SA_CENTER);
    00087     }
    00088   }
    00089
    00090   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00091   {
    00092     if (widget != WID_LI_BACKGROUND) return;
    00093
    00094     size->height = WD_TEXTPANEL_TOP + WD_TEXTPANEL_BOTTOM;
    00095     for (uint i = 0; i < LAND_INFO_CENTERED_LINES; i++) {
    00096       if (StrEmpty(this->landinfo_data[i])) break;
    00097
    00098       uint width = GetStringBoundingBox(this->landinfo_data[i]).width + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT;
    00099       size->width = max(size->width, width);
    00100
    00101       size->height += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
    00102       if (i == 0) size->height += 4;
    00103     }
    00104
    00105     if (!StrEmpty(this->landinfo_data[LAND_INFO_MULTICENTER_LINE])) {
    00106       uint width = GetStringBoundingBox(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]).width + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT;
    00107       size->width = max(size->width, min(300u, width));
    00108       SetDParamStr(0, this->landinfo_data[LAND_INFO_MULTICENTER_LINE]);
    00109       size->height += GetStringHeight(STR_JUST_RAW_STRING, size->width - WD_FRAMETEXT_LEFT - WD_FRAMETEXT_RIGHT);
    00110     }
    00111   }
    00112
    00113   LandInfoWindow(TileIndex tile) : Window(), tile(tile)
    00114   {
    00115     this->InitNested(&_land_info_desc);
    00116
    00117 #if defined(_DEBUG)
    00118 # define LANDINFOD_LEVEL 0
    00119 #else
    00120 # define LANDINFOD_LEVEL 1
    00121 #endif
    00122     DEBUG(misc, LANDINFOD_LEVEL, "TILE: %#x (%i,%i)", tile, TileX(tile), TileY(tile));
    00123     DEBUG(misc, LANDINFOD_LEVEL, "type_height  = %#x", _m[tile].type_height);
    00124     DEBUG(misc, LANDINFOD_LEVEL, "m1           = %#x", _m[tile].m1);
    00125     DEBUG(misc, LANDINFOD_LEVEL, "m2           = %#x", _m[tile].m2);
    00126     DEBUG(misc, LANDINFOD_LEVEL, "m3           = %#x", _m[tile].m3);
    00127     DEBUG(misc, LANDINFOD_LEVEL, "m4           = %#x", _m[tile].m4);
    00128     DEBUG(misc, LANDINFOD_LEVEL, "m5           = %#x", _m[tile].m5);
    00129     DEBUG(misc, LANDINFOD_LEVEL, "m6           = %#x", _m[tile].m6);
    00130     DEBUG(misc, LANDINFOD_LEVEL, "m7           = %#x", _me[tile].m7);
    00131 #undef LANDINFOD_LEVEL
    00132   }
    00133
    00134   virtual void OnInit()
    00135   {
    00136     Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
    00137
    00138     /* Because build_date is not set yet in every TileDesc, we make sure it is empty */
    00139     TileDesc td;
    00140
    00141     td.build_date = INVALID_DATE;
    00142
    00143     /* Most tiles have only one owner, but
    00144      *  - drivethrough roadstops can be build on town owned roads (up to 2 owners) and
    00145      *  - roads can have up to four owners (railroad, road, tram, 3rd-roadtype "highway").
    00146      */
    00147     td.owner_type[0] = STR_LAND_AREA_INFORMATION_OWNER; // At least one owner is displayed, though it might be "N/A".
    00148     td.owner_type[1] = STR_NULL;       // STR_NULL results in skipping the owner
    00149     td.owner_type[2] = STR_NULL;
    00150     td.owner_type[3] = STR_NULL;
    00151     td.owner[0] = OWNER_NONE;
    00152     td.owner[1] = OWNER_NONE;
    00153     td.owner[2] = OWNER_NONE;
    00154     td.owner[3] = OWNER_NONE;
    00155
    00156     td.station_class = STR_NULL;
    00157     td.station_name = STR_NULL;
    00158     td.airport_class = STR_NULL;
    00159     td.airport_name = STR_NULL;
    00160     td.airport_tile_name = STR_NULL;
    00161     td.rail_speed = 0;
    00162
    00163     td.grf = NULL;
    00164
    00165     CargoArray acceptance;
    00166     AddAcceptedCargo(tile, acceptance, NULL);
    00167     GetTileDesc(tile, &td);
    00168
    00169     uint line_nr = 0;
    00170
    00171     /* Tiletype */
    00172     SetDParam(0, td.dparam[0]);
    00173     GetString(this->landinfo_data[line_nr], td.str, lastof(this->landinfo_data[line_nr]));
    00174     line_nr++;
    00175
    00176     /* Up to four owners */
    00177     for (uint i = 0; i < 4; i++) {
    00178       if (td.owner_type[i] == STR_NULL) continue;
    00179
    00180       SetDParam(0, STR_LAND_AREA_INFORMATION_OWNER_N_A);
    00181       if (td.owner[i] != OWNER_NONE && td.owner[i] != OWNER_WATER) GetNameOfOwner(td.owner[i], tile);
    00182       GetString(this->landinfo_data[line_nr], td.owner_type[i], lastof(this->landinfo_data[line_nr]));
    00183       line_nr++;
    00184     }
    00185
    00186     /* Cost to clear/revenue when cleared */
    00187     StringID str = STR_LAND_AREA_INFORMATION_COST_TO_CLEAR_N_A;
    00188     Company *c = Company::GetIfValid(_local_company);
    00189     if (c != NULL) {
    00190       Money old_money = c->money;
    00191       c->money = INT64_MAX;
    00192       assert(_current_company == _local_company);
    00193       CommandCost costclear = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
    00194       c->money = old_money;
    00195       if (costclear.Succeeded()) {
    00196         Money cost = costclear.GetCost();
    00197         if (cost < 0) {
    00198           cost = -cost; // Negate negative cost to a positive revenue
    00199           str = STR_LAND_AREA_INFORMATION_REVENUE_WHEN_CLEARED;
    00200         } else {
    00201           str = STR_LAND_AREA_INFORMATION_COST_TO_CLEAR;
    00202         }
    00203         SetDParam(0, cost);
    00204       }
    00205     }
    00206     GetString(this->landinfo_data[line_nr], str, lastof(this->landinfo_data[line_nr]));
    00207     line_nr++;
    00208
    00209     /* Location */
    00210     char tmp[16];
    00211     snprintf(tmp, lengthof(tmp), "0x%.4X", tile);
    00212     SetDParam(0, TileX(tile));
    00213     SetDParam(1, TileY(tile));
    00214     SetDParam(2, GetTileZ(tile));
    00215     SetDParamStr(3, tmp);
    00216     GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_LANDINFO_COORDS, lastof(this->landinfo_data[line_nr]));
    00217     line_nr++;
    00218
    00219     /* Local authority */
    00220     SetDParam(0, STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY_NONE);
    00221     if (t != NULL) {
    00222       SetDParam(0, STR_TOWN_NAME);
    00223       SetDParam(1, t->index);
    00224     }
    00225     GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY, lastof(this->landinfo_data[line_nr]));
    00226     line_nr++;
    00227
    00228     /* Build date */
    00229     if (td.build_date != INVALID_DATE) {
    00230       SetDParam(0, td.build_date);
    00231       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_BUILD_DATE, lastof(this->landinfo_data[line_nr]));
    00232       line_nr++;
    00233     }
    00234
    00235     /* Station class */
    00236     if (td.station_class != STR_NULL) {
    00237       SetDParam(0, td.station_class);
    00238       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_STATION_CLASS, lastof(this->landinfo_data[line_nr]));
    00239       line_nr++;
    00240     }
    00241
    00242     /* Station type name */
    00243     if (td.station_name != STR_NULL) {
    00244       SetDParam(0, td.station_name);
    00245       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_STATION_TYPE, lastof(this->landinfo_data[line_nr]));
    00246       line_nr++;
    00247     }
    00248
    00249     /* Airport class */
    00250     if (td.airport_class != STR_NULL) {
    00251       SetDParam(0, td.airport_class);
    00252       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_AIRPORT_CLASS, lastof(this->landinfo_data[line_nr]));
    00253       line_nr++;
    00254     }
    00255
    00256     /* Airport name */
    00257     if (td.airport_name != STR_NULL) {
    00258       SetDParam(0, td.airport_name);
    00259       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_AIRPORT_NAME, lastof(this->landinfo_data[line_nr]));
    00260       line_nr++;
    00261     }
    00262
    00263     /* Airport tile name */
    00264     if (td.airport_tile_name != STR_NULL) {
    00265       SetDParam(0, td.airport_tile_name);
    00266       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_AIRPORTTILE_NAME, lastof(this->landinfo_data[line_nr]));
    00267       line_nr++;
    00268     }
    00269
    00270     /* Rail speed limit */
    00271     if (td.rail_speed != 0) {
    00272       SetDParam(0, td.rail_speed);
    00273       GetString(this->landinfo_data[line_nr], STR_LANG_AREA_INFORMATION_RAIL_SPEED_LIMIT, lastof(this->landinfo_data[line_nr]));
    00274       line_nr++;
    00275     }
    00276
    00277     /* NewGRF name */
    00278     if (td.grf != NULL) {
    00279       SetDParamStr(0, td.grf);
    00280       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_NEWGRF_NAME, lastof(this->landinfo_data[line_nr]));
    00281       line_nr++;
    00282     }
    00283
    00284     assert(line_nr < LAND_INFO_CENTERED_LINES);
    00285
    00286     /* Mark last line empty */
    00287     this->landinfo_data[line_nr][0] = '\0';
    00288
    00289     /* Cargo acceptance is displayed in a extra multiline */
    00290     char *strp = GetString(this->landinfo_data[LAND_INFO_MULTICENTER_LINE], STR_LAND_AREA_INFORMATION_CARGO_ACCEPTED, lastof(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]));
    00291     bool found = false;
    00292
    00293     for (CargoID i = 0; i < NUM_CARGO; ++i) {
    00294       if (acceptance[i] > 0) {
    00295         /* Add a comma between each item. */
    00296         if (found) {
    00297           *strp++ = ',';
    00298           *strp++ = ' ';
    00299         }
    00300         found = true;
    00301
    00302         /* If the accepted value is less than 8, show it in 1/8:ths */
    00303         if (acceptance[i] < 8) {
    00304           SetDParam(0, acceptance[i]);
    00305           SetDParam(1, CargoSpec::Get(i)->name);
    00306           strp = GetString(strp, STR_LAND_AREA_INFORMATION_CARGO_EIGHTS, lastof(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]));
    00307         } else {
    00308           strp = GetString(strp, CargoSpec::Get(i)->name, lastof(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]));
    00309         }
    00310       }
    00311     }
    00312     if (!found) this->landinfo_data[LAND_INFO_MULTICENTER_LINE][0] = '\0';
    00313   }
    00314
    00315   virtual bool IsNewGRFInspectable() const
    00316   {
    00317     return ::IsNewGRFInspectable(GetGrfSpecFeature(this->tile), this->tile);
    00318   }
    00319
    00320   virtual void ShowNewGRFInspectWindow() const
    00321   {
    00322 		::ShowNewGRFInspectWindow(GetGrfSpecFeature(this->tile), this->tile);
    00323   }
    00324
    00330   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    00331   {
    00332     if (!gui_scope) return;
    00333     switch (data) {
    00334       case 1:
    00335         /* ReInit, "debug" sprite might have changed */
    00336         this->ReInit();
    00337         break;
    00338     }
    00339   }
    00340 };
    00341
    00346 void ShowLandInfo(TileIndex tile)
    00347 {
    00348   DeleteWindowById(WC_LAND_INFO, 0);
    00349   new LandInfoWindow(tile);
    00350 }
    00351
    00352 static const NWidgetPart _nested_about_widgets[] = {
    00353   NWidget(NWID_HORIZONTAL),
    00354     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00355     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_ABOUT_OPENTTD, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00356   EndContainer(),
    00357   NWidget(WWT_PANEL, COLOUR_GREY), SetPIP(4, 2, 4),
    00358     NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_ABOUT_ORIGINAL_COPYRIGHT, STR_NULL),
    00359     NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_ABOUT_VERSION, STR_NULL),
    00360     NWidget(WWT_FRAME, COLOUR_GREY), SetPadding(0, 5, 1, 5),
    00361       NWidget(WWT_EMPTY, INVALID_COLOUR, WID_A_SCROLLING_TEXT),
    00362     EndContainer(),
    00363     NWidget(WWT_LABEL, COLOUR_GREY, WID_A_WEBSITE), SetDataTip(STR_BLACK_RAW_STRING, STR_NULL),
    00364     NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_ABOUT_COPYRIGHT_OPENTTD, STR_NULL),
    00365   EndContainer(),
    00366 };
    00367
    00368 static const WindowDesc _about_desc(
    00369   WDP_CENTER, 0, 0,
    00370   WC_GAME_OPTIONS, WC_NONE,
    00371   0,
    00372   _nested_about_widgets, lengthof(_nested_about_widgets)
    00373 );
    00374
    00375 static const char * const _credits[] = {
    00376   "Original design by Chris Sawyer",
    00377   "Original graphics by Simon Foster",
    00378   "",
    00379   "The OpenTTD team (in alphabetical order):",
    00380   "  Albert Hofkamp (Alberth) - GUI expert",
    00381   "  Jean-Fran\xC3\xA7ois Claeys (Belugas) - GUI, newindustries and more",
    00382   "  Matthijs Kooijman (blathijs) - Pathfinder-guru, pool rework",
    00383   "  Christoph Elsenhans (frosch) - General coding",
    00384   "  Ulf Hermann (fonsinchen) - Cargo Distribution",
    00385   "  Lo\xC3\xAF""c Guilloux (glx) - Windows Expert",
    00386   "  Michael Lutz (michi_cc) - Path based signals",
    00387   "  Owen Rudge (orudge) - Forum host, OS/2 port",
    00388   "  Peter Nelson (peter1138) - Spiritual descendant from NewGRF gods",
    00389   "  Ingo von Borstel (planetmaker) - Support",
    00390   "  Remko Bijker (Rubidium) - Lead coder and way more",
    00391   "  Zden\xC4\x9Bk Sojka (SmatZ) - Bug finder and fixer",
    00392   "  Jos\xC3\xA9 Soler (Terkhen) - General coding",
    00393   "  Thijs Marinussen (Yexo) - AI Framework",
    00394   "  Leif Linse (Zuu) - AI/Game Script",
    00395   "",
    00396   "Inactive Developers:",
    00397   "  Bjarni Corfitzen (Bjarni) - MacOSX port, coder and vehicles",
    00398   "  Victor Fischer (Celestar) - Programming everywhere you need him to",
    00399   "  Tam\xC3\xA1s Farag\xC3\xB3 (Darkvater) - Ex-Lead coder",
    00400   "  Jaroslav Mazanec (KUDr) - YAPG (Yet Another Pathfinder God) ;)",
    00401   "  Jonathan Coome (Maedhros) - High priest of the NewGRF Temple",
    00402   "  Attila B\xC3\xA1n (MiHaMiX) - Developer WebTranslator 1 and 2",
    00403   "  Christoph Mallon (Tron) - Programmer, code correctness police",
    00404   "",
    00405   "Retired Developers:",
    00406   "  Ludvig Strigeus (ludde) - OpenTTD author, main coder (0.1 - 0.3.3)",
    00407   "  Serge Paquet (vurlix) - Assistant project manager, coder (0.1 - 0.3.3)",
    00408   "  Dominik Scherer (dominik81) - Lead programmer, GUI expert (0.3.0 - 0.3.6)",
    00409   "  Benedikt Br\xC3\xBCggemeier (skidd13) - Bug fixer and code reworker",
    00410   "  Patric Stout (TrueBrain) - NoProgrammer (0.3 - 1.2), sys op (active)",
    00411   "",
    00412   "Special thanks go out to:",
    00413   "  Josef Drexler - For his great work on TTDPatch",
    00414   "  Marcin Grzegorczyk - Track foundations and for describing TTD internals",
    00415   "  Petr Baudi\xC5\xA1 (pasky) - Many patches, newGRF support",
    00416   "  Simon Sasburg (HackyKid) - Many bugfixes he has blessed us with",
    00417   "  Stefan Mei\xC3\x9Fner (sign_de) - For his work on the console",
    00418   "  Mike Ragsdale - OpenTTD installer",
    00419   "  Cian Duffy (MYOB) - BeOS port / manual writing",
    00420   "  Christian Rosentreter (tokai) - MorphOS / AmigaOS port",
    00421   "  Richard Kempton (richK) - additional airports, initial TGP implementation",
    00422   "",
    00423   "  Alberto Demichelis - Squirrel scripting language \xC2\xA9 2003-2008",
    00424   "  L. Peter Deutsch - MD5 implementation \xC2\xA9 1999, 2000, 2002",
    00425   "  Michael Blunck - Pre-signals and semaphores \xC2\xA9 2003",
    00426   "  George - Canal/Lock graphics \xC2\xA9 2003-2004",
    00427   "  Andrew Parkhouse (andythenorth) - River graphics",
    00428   "  David Dallaston (Pikka) - Tram tracks",
    00429   "  All Translators - Who made OpenTTD a truly international game",
    00430   "  Bug Reporters - Without whom OpenTTD would still be full of bugs!",
    00431   "",
    00432   "",
    00433   "And last but not least:",
    00434   "  Chris Sawyer - For an amazing game!"
    00435 };
    00436
    00437 struct AboutWindow : public Window {
    00438   int text_position;
    00439   byte counter;
    00440   int line_height;
    00441   static const int num_visible_lines = 19;
    00442
    00443   AboutWindow() : Window()
    00444   {
    00445     this->InitNested(&_about_desc, WN_GAME_OPTIONS_ABOUT);
    00446
    00447     this->counter = 5;
    00448     this->text_position = this->GetWidget<NWidgetBase>(WID_A_SCROLLING_TEXT)->pos_y + this->GetWidget<NWidgetBase>(WID_A_SCROLLING_TEXT)->current_y;
    00449   }
    00450
    00451   virtual void SetStringParameters(int widget) const
    00452   {
    00453     if (widget == WID_A_WEBSITE) SetDParamStr(0, "Website: http://www.openttd.org");
    00454   }
    00455
    00456   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00457   {
    00458     if (widget != WID_A_SCROLLING_TEXT) return;
    00459
    00460     this->line_height = FONT_HEIGHT_NORMAL;
    00461
    00462     Dimension d;
    00463     d.height = this->line_height * num_visible_lines;
    00464
    00465     d.width = 0;
    00466     for (uint i = 0; i < lengthof(_credits); i++) {
    00467       d.width = max(d.width, GetStringBoundingBox(_credits[i]).width);
    00468     }
    00469     *size = maxdim(*size, d);
    00470   }
    00471
    00472   virtual void DrawWidget(const Rect &r, int widget) const
    00473   {
    00474     if (widget != WID_A_SCROLLING_TEXT) return;
    00475
    00476     int y = this->text_position;
    00477
    00478     /* Show all scrolling _credits */
    00479     for (uint i = 0; i < lengthof(_credits); i++) {
    00480       if (y >= r.top + 7 && y < r.bottom - this->line_height) {
    00481         DrawString(r.left, r.right, y, _credits[i], TC_BLACK, SA_LEFT | SA_FORCE);
    00482       }
    00483       y += this->line_height;
    00484     }
    00485   }
    00486
    00487   virtual void OnTick()
    00488   {
    00489     if (--this->counter == 0) {
    00490       this->counter = 5;
    00491       this->text_position--;
    00492       /* If the last text has scrolled start a new from the start */
    00493       if (this->text_position < (int)(this->GetWidget<NWidgetBase>(WID_A_SCROLLING_TEXT)->pos_y - lengthof(_credits) * this->line_height)) {
    00494         this->text_position = this->GetWidget<NWidgetBase>(WID_A_SCROLLING_TEXT)->pos_y + this->GetWidget<NWidgetBase>(WID_A_SCROLLING_TEXT)->current_y;
    00495       }
    00496       this->SetDirty();
    00497     }
    00498   }
    00499 };
    00500
    00501 void ShowAboutWindow()
    00502 {
    00503   DeleteWindowByClass(WC_GAME_OPTIONS);
    00504   new AboutWindow();
    00505 }
    00506
    00513 void ShowEstimatedCostOrIncome(Money cost, int x, int y)
    00514 {
    00515   StringID msg = STR_MESSAGE_ESTIMATED_COST;
    00516
    00517   if (cost < 0) {
    00518     cost = -cost;
    00519     msg = STR_MESSAGE_ESTIMATED_INCOME;
    00520   }
    00521   SetDParam(0, cost);
    00522   ShowErrorMessage(msg, INVALID_STRING_ID, WL_INFO, x, y);
    00523 }
    00524
    00532 void ShowCostOrIncomeAnimation(int x, int y, int z, Money cost)
    00533 {
    00534   Point pt = RemapCoords(x, y, z);
    00535   StringID msg = STR_INCOME_FLOAT_COST;
    00536
    00537   if (cost < 0) {
    00538     cost = -cost;
    00539     msg = STR_INCOME_FLOAT_INCOME;
    00540   }
    00541   SetDParam(0, cost);
    00542   AddTextEffect(msg, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00543 }
    00544
    00552 void ShowFeederIncomeAnimation(int x, int y, int z, Money cost)
    00553 {
    00554   Point pt = RemapCoords(x, y, z);
    00555
    00556   SetDParam(0, cost);
    00557   AddTextEffect(STR_FEEDER, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00558 }
    00559
    00569 TextEffectID ShowFillingPercent(int x, int y, int z, uint8 percent, StringID string)
    00570 {
    00571   Point pt = RemapCoords(x, y, z);
    00572
    00573   assert(string != STR_NULL);
    00574
    00575   SetDParam(0, percent);
    00576   return AddTextEffect(string, pt.x, pt.y, 0, TE_STATIC);
    00577 }
    00578
    00584 void UpdateFillingPercent(TextEffectID te_id, uint8 percent, StringID string)
    00585 {
    00586   assert(string != STR_NULL);
    00587
    00588   SetDParam(0, percent);
    00589   UpdateTextEffect(te_id, string);
    00590 }
    00591
    00596 void HideFillingPercent(TextEffectID *te_id)
    00597 {
    00598   if (*te_id == INVALID_TE_ID) return;
    00599
    00600   RemoveTextEffect(*te_id);
    00601   *te_id = INVALID_TE_ID;
    00602 }
    00603
    00604 static const NWidgetPart _nested_tooltips_widgets[] = {
    00605   NWidget(WWT_PANEL, COLOUR_GREY, WID_TT_BACKGROUND), SetMinimalSize(200, 32), EndContainer(),
    00606 };
    00607
    00608 static const WindowDesc _tool_tips_desc(
    00609   WDP_MANUAL, 0, 0, // Coordinates and sizes are not used,
    00610   WC_TOOLTIPS, WC_NONE,
    00611   0,
    00612   _nested_tooltips_widgets, lengthof(_nested_tooltips_widgets)
    00613 );
    00614
    00616 struct TooltipsWindow : public Window
    00617 {
    00618   StringID string_id;
    00619   byte paramcount;
    00620   uint64 params[5];
    00621   TooltipCloseCondition close_cond;
    00622
    00623   TooltipsWindow(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip) : Window()
    00624   {
    00625     this->parent = parent;
    00626     this->string_id = str;
    00627     assert_compile(sizeof(this->params[0]) == sizeof(params[0]));
    00628     assert(paramcount <= lengthof(this->params));
    00629     memcpy(this->params, params, sizeof(this->params[0]) * paramcount);
    00630     this->paramcount = paramcount;
    00631     this->close_cond = close_tooltip;
    00632
    00633     this->InitNested(&_tool_tips_desc);
    00634
    00635     CLRBITS(this->flags, WF_WHITE_BORDER);
    00636   }
    00637
    00638   virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
    00639   {
    00640     /* Find the free screen space between the main toolbar at the top, and the statusbar at the bottom.
    00641      * Add a fixed distance 2 so the tooltip floats free from both bars.
    00642      */
    00643     int scr_top = GetMainViewTop() + 2;
    00644     int scr_bot = GetMainViewBottom() - 2;
    00645
    00646     Point pt;
    00647
    00648     /* Correctly position the tooltip position, watch out for window and cursor size
    00649      * Clamp value to below main toolbar and above statusbar. If tooltip would
    00650      * go below window, flip it so it is shown above the cursor */
    00651     pt.y = Clamp(_cursor.pos.y + _cursor.size.y + _cursor.offs.y + 5, scr_top, scr_bot);
    00652     if (pt.y + sm_height > scr_bot) pt.y = min(_cursor.pos.y + _cursor.offs.y - 5, scr_bot) - sm_height;
    00653     pt.x = sm_width >= _screen.width ? 0 : Clamp(_cursor.pos.x - (sm_width >> 1), 0, _screen.width - sm_width);
    00654
    00655     return pt;
    00656   }
    00657
    00658   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00659   {
    00660     /* There is only one widget. */
    00661     for (uint i = 0; i != this->paramcount; i++) SetDParam(i, this->params[i]);
    00662
    00663     size->width  = min(GetStringBoundingBox(this->string_id).width, 194);
    00664     size->height = GetStringHeight(this->string_id, size->width);
    00665
    00666     /* Increase slightly to have some space around the box. */
    00667     size->width  += 2 + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
    00668     size->height += 2 + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    00669   }
    00670
    00671   virtual void DrawWidget(const Rect &r, int widget) const
    00672   {
    00673     /* There is only one widget. */
    00674     GfxFillRect(r.left, r.top, r.right, r.bottom, PC_BLACK);
    00675     GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_LIGHT_YELLOW);
    00676
    00677     for (uint arg = 0; arg < this->paramcount; arg++) {
    00678       SetDParam(arg, this->params[arg]);
    00679     }
    00680     DrawStringMultiLine(r.left + WD_FRAMERECT_LEFT, r.right - WD_FRAMERECT_RIGHT, r.top + WD_FRAMERECT_TOP, r.bottom - WD_FRAMERECT_BOTTOM, this->string_id, TC_FROMSTRING, SA_CENTER);
    00681   }
    00682
    00683   virtual void OnMouseLoop()
    00684   {
    00685     /* Always close tooltips when the cursor is not in our window. */
    00686     if (!_cursor.in_window) {
    00687       delete this;
    00688       return;
    00689     }
    00690
    00691     /* We can show tooltips while dragging tools. These are shown as long as
    00692      * we are dragging the tool. Normal tooltips work with hover or rmb. */
    00693     switch (this->close_cond) {
    00694       case TCC_RIGHT_CLICK: if (!_right_button_down) delete this; break;
    00695       case TCC_LEFT_CLICK: if (!_left_button_down) delete this; break;
    00696       case TCC_HOVER: if (!_mouse_hovering) delete this; break;
    00697     }
    00698   }
    00699 };
    00700
    00709 void GuiShowTooltips(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip)
    00710 {
    00711   DeleteWindowById(WC_TOOLTIPS, 0);
    00712
    00713   if (str == STR_NULL) return;
    00714
    00715   new TooltipsWindow(parent, str, paramcount, params, close_tooltip);
    00716 }
    00717
    00718 HandleEditBoxResult QueryString::HandleEditBoxKey(Window *w, int wid, uint16 key, uint16 keycode, EventState &state)
    00719 {
    00720   if (!w->IsWidgetGloballyFocused(wid)) return HEBR_NOT_FOCUSED;
    00721
    00722   state = ES_HANDLED;
    00723
    00724   bool edited = false;
    00725
    00726   switch (keycode) {
    00727     case WKC_ESC: return HEBR_CANCEL;
    00728
    00729     case WKC_RETURN: case WKC_NUM_ENTER: return HEBR_CONFIRM;
    00730
    00731 #ifdef WITH_COCOA
    00732     case (WKC_META | 'V'):
    00733 #endif
    00734     case (WKC_CTRL | 'V'):
    00735       edited = this->text.InsertClipboard();
    00736       break;
    00737
    00738 #ifdef WITH_COCOA
    00739     case (WKC_META | 'U'):
    00740 #endif
    00741     case (WKC_CTRL | 'U'):
    00742       this->text.DeleteAll();
    00743       edited = true;
    00744       break;
    00745
    00746     case WKC_BACKSPACE: case WKC_DELETE:
    00747     case WKC_CTRL | WKC_BACKSPACE: case WKC_CTRL | WKC_DELETE:
    00748       edited = this->text.DeleteChar(keycode);
    00749       break;
    00750
    00751     case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
    00752     case WKC_CTRL | WKC_LEFT: case WKC_CTRL | WKC_RIGHT:
    00753       this->text.MovePos(keycode);
    00754       break;
    00755
    00756     default:
    00757       if (IsValidChar(key, this->text.afilter)) {
    00758         edited = this->text.InsertChar(key);
    00759       } else {
    00760         state = ES_NOT_HANDLED;
    00761       }
    00762       break;
    00763   }
    00764
    00765   return edited ? HEBR_EDITING : HEBR_CURSOR;
    00766 }
    00767
    00768 void QueryString::HandleEditBox(Window *w, int wid)
    00769 {
    00770   if (w->IsWidgetGloballyFocused(wid) && this->text.HandleCaret()) {
    00771     w->SetWidgetDirty(wid);
    00772
    00773     /* For the OSK also invalidate the parent window */
    00774     if (w->window_class == WC_OSK) w->InvalidateData();
    00775   }
    00776 }
    00777
    00778 void QueryString::DrawEditBox(const Window *w, int wid) const
    00779 {
    00780   const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
    00781
    00782   assert((wi->type & WWT_MASK) == WWT_EDITBOX);
    00783
    00784   bool rtl = _current_text_dir == TD_RTL;
    00785   Dimension sprite_size = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT);
    00786   int clearbtn_width = sprite_size.width + WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT;
    00787
    00788   int clearbtn_left  = wi->pos_x + (rtl ? 0 : wi->current_x - clearbtn_width);
    00789   int clearbtn_right = wi->pos_x + (rtl ? clearbtn_width : wi->current_x) - 1;
    00790   int left   = wi->pos_x + (rtl ? clearbtn_width : 0);
    00791   int right  = wi->pos_x + (rtl ? wi->current_x : wi->current_x - clearbtn_width) - 1;
    00792
    00793   int top    = wi->pos_y;
    00794   int bottom = wi->pos_y + wi->current_y - 1;
    00795
    00796   DrawFrameRect(clearbtn_left, top, clearbtn_right, bottom, wi->colour, wi->IsLowered() ? FR_LOWERED : FR_NONE);
    00797   DrawSprite(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT, PAL_NONE, clearbtn_left + WD_IMGBTN_LEFT + (wi->IsLowered() ? 1 : 0), (top + bottom - sprite_size.height) / 2 + (wi->IsLowered() ? 1 : 0));
    00798   if (this->text.bytes == 1) GfxFillRect(clearbtn_left + 1, top + 1, clearbtn_right - 1, bottom - 1, _colour_gradient[wi->colour & 0xF][2], FILLRECT_CHECKER);
    00799
    00800   DrawFrameRect(left, top, right, bottom, wi->colour, FR_LOWERED | FR_DARKENED);
    00801   GfxFillRect(left + 1, top + 1, right - 1, bottom - 1, PC_BLACK);
    00802
    00803   /* Limit the drawing of the string inside the widget boundaries */
    00804   DrawPixelInfo dpi;
    00805   if (!FillDrawPixelInfo(&dpi, left + WD_FRAMERECT_LEFT, top + WD_FRAMERECT_TOP, right - left - WD_FRAMERECT_RIGHT, bottom - top - WD_FRAMERECT_BOTTOM)) return;
    00806
    00807   DrawPixelInfo *old_dpi = _cur_dpi;
    00808   _cur_dpi = &dpi;
    00809
    00810   /* We will take the current widget length as maximum width, with a small
    00811    * space reserved at the end for the caret to show */
    00812   const Textbuf *tb = &this->text;
    00813   int delta = min(0, (right - left) - tb->pixels - 10);
    00814
    00815   if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
    00816
    00817   DrawString(delta, tb->pixels, 0, tb->buf, TC_YELLOW);
    00818   bool focussed = w->IsWidgetGloballyFocused(wid) || IsOSKOpenedFor(w, wid);
    00819   if (focussed && tb->caret) {
    00820     int caret_width = GetStringBoundingBox("_").width;
    00821     DrawString(tb->caretxoffs + delta, tb->caretxoffs + delta + caret_width, 0, "_", TC_WHITE);
    00822   }
    00823
    00824   _cur_dpi = old_dpi;
    00825 }
    00826
    00827 void QueryString::ClickEditBox(Window *w, Point pt, int wid, int click_count, bool focus_changed)
    00828 {
    00829   const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
    00830
    00831   assert((wi->type & WWT_MASK) == WWT_EDITBOX);
    00832
    00833   bool rtl = _current_text_dir == TD_RTL;
    00834   int clearbtn_width = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT).width;
    00835
    00836   int clearbtn_left  = wi->pos_x + (rtl ? 0 : wi->current_x - clearbtn_width);
    00837
    00838   if (IsInsideBS(pt.x, clearbtn_left, clearbtn_width)) {
    00839     if (this->text.bytes > 1) {
    00840       this->text.DeleteAll();
    00841       w->HandleButtonClick(wid);
    00842       w->OnEditboxChanged(wid);
    00843     }
    00844     return;
    00845   }
    00846
    00847   if (w->window_class != WC_OSK && _settings_client.gui.osk_activation != OSKA_DISABLED &&
    00848     (!focus_changed || _settings_client.gui.osk_activation == OSKA_IMMEDIATELY) &&
    00849     (click_count == 2 || _settings_client.gui.osk_activation != OSKA_DOUBLE_CLICK)) {
    00850     /* Open the OSK window */
    00851     ShowOnScreenKeyboard(w, wid);
    00852   }
    00853 }
    00854
    00856 struct QueryStringWindow : public Window
    00857 {
    00858   QueryString editbox;
    00859   QueryStringFlags flags;
    00860
    00861   QueryStringWindow(StringID str, StringID caption, uint max_bytes, uint max_chars, const WindowDesc *desc, Window *parent, CharSetFilter afilter, QueryStringFlags flags) :
    00862       editbox(max_bytes, max_chars)
    00863   {
    00864     char *last_of = &this->editbox.text.buf[this->editbox.text.max_bytes - 1];
    00865     GetString(this->editbox.text.buf, str, last_of);
    00866     str_validate(this->editbox.text.buf, last_of, SVS_NONE);
    00867
    00868     /* Make sure the name isn't too long for the text buffer in the number of
    00869      * characters (not bytes). max_chars also counts the '\0' characters. */
    00870     while (Utf8StringLength(this->editbox.text.buf) + 1 > this->editbox.text.max_chars) {
    00871       *Utf8PrevChar(this->editbox.text.buf + strlen(this->editbox.text.buf)) = '\0';
    00872     }
    00873
    00874     this->editbox.text.UpdateSize();
    00875
    00876     if ((flags & QSF_ACCEPT_UNCHANGED) == 0) this->editbox.orig = strdup(this->editbox.text.buf);
    00877
    00878     this->querystrings[WID_QS_TEXT] = &this->editbox;
    00879     this->editbox.caption = caption;
    00880     this->editbox.cancel_button = WID_QS_CANCEL;
    00881     this->editbox.ok_button = WID_QS_OK;
    00882     this->editbox.text.afilter = afilter;
    00883     this->flags = flags;
    00884
    00885     this->InitNested(desc, WN_QUERY_STRING);
    00886
    00887     this->parent = parent;
    00888
    00889     this->SetFocusedWidget(WID_QS_TEXT);
    00890   }
    00891
    00892   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00893   {
    00894     if (widget == WID_QS_DEFAULT && (this->flags & QSF_ENABLE_DEFAULT) == 0) {
    00895       /* We don't want this widget to show! */
    00896       fill->width = 0;
    00897       resize->width = 0;
    00898       size->width = 0;
    00899     }
    00900   }
    00901
    00902   virtual void SetStringParameters(int widget) const
    00903   {
    00904     if (widget == WID_QS_CAPTION) SetDParam(0, this->editbox.caption);
    00905   }
    00906
    00907   void OnOk()
    00908   {
    00909     if (this->editbox.orig == NULL || strcmp(this->editbox.text.buf, this->editbox.orig) != 0) {
    00910       /* If the parent is NULL, the editbox is handled by general function
    00911        * HandleOnEditText */
    00912       if (this->parent != NULL) {
    00913         this->parent->OnQueryTextFinished(this->editbox.text.buf);
    00914       } else {
    00915         HandleOnEditText(this->editbox.text.buf);
    00916       }
    00917       this->editbox.handled = true;
    00918     }
    00919   }
    00920
    00921   virtual void OnClick(Point pt, int widget, int click_count)
    00922   {
    00923     switch (widget) {
    00924       case WID_QS_DEFAULT:
    00925         this->editbox.text.DeleteAll();
    00926         /* FALL THROUGH */
    00927       case WID_QS_OK:
    00928         this->OnOk();
    00929         /* FALL THROUGH */
    00930       case WID_QS_CANCEL:
    00931         delete this;
    00932         break;
    00933     }
    00934   }
    00935
    00936   ~QueryStringWindow()
    00937   {
    00938     if (!this->editbox.handled && this->parent != NULL) {
    00939       Window *parent = this->parent;
    00940       this->parent = NULL; // so parent doesn't try to delete us again
    00941       parent->OnQueryTextFinished(NULL);
    00942     }
    00943   }
    00944 };
    00945
    00946 static const NWidgetPart _nested_query_string_widgets[] = {
    00947   NWidget(NWID_HORIZONTAL),
    00948     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00949     NWidget(WWT_CAPTION, COLOUR_GREY, WID_QS_CAPTION), SetDataTip(STR_WHITE_STRING, STR_NULL),
    00950   EndContainer(),
    00951   NWidget(WWT_PANEL, COLOUR_GREY),
    00952     NWidget(WWT_EDITBOX, COLOUR_GREY, WID_QS_TEXT), SetMinimalSize(256, 12), SetFill(1, 1), SetPadding(2, 2, 2, 2),
    00953   EndContainer(),
    00954   NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
    00955     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QS_DEFAULT), SetMinimalSize(87, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_DEFAULT, STR_NULL),
    00956     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QS_CANCEL), SetMinimalSize(86, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_CANCEL, STR_NULL),
    00957     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QS_OK), SetMinimalSize(87, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_OK, STR_NULL),
    00958   EndContainer(),
    00959 };
    00960
    00961 static const WindowDesc _query_string_desc(
    00962   WDP_CENTER, 0, 0,
    00963   WC_QUERY_STRING, WC_NONE,
    00964   0,
    00965   _nested_query_string_widgets, lengthof(_nested_query_string_widgets)
    00966 );
    00967
    00978 void ShowQueryString(StringID str, StringID caption, uint maxsize, Window *parent, CharSetFilter afilter, QueryStringFlags flags)
    00979 {
    00980   DeleteWindowByClass(WC_QUERY_STRING);
    00981   new QueryStringWindow(str, caption, ((flags & QSF_LEN_IN_CHARS) ? MAX_CHAR_LENGTH : 1) * maxsize, maxsize, &_query_string_desc, parent, afilter, flags);
    00982 }
    00983
    00987 struct QueryWindow : public Window {
    00988   QueryCallbackProc *proc;
    00989   uint64 params[10];
    00990   StringID message;
    00991   StringID caption;
    00992
    00993   QueryWindow(const WindowDesc *desc, StringID caption, StringID message, Window *parent, QueryCallbackProc *callback) : Window()
    00994   {
    00995     /* Create a backup of the variadic arguments to strings because it will be
    00996      * overridden pretty often. We will copy these back for drawing */
    00997     CopyOutDParam(this->params, 0, lengthof(this->params));
    00998     this->caption = caption;
    00999     this->message = message;
    01000     this->proc    = callback;
    01001
    01002     this->InitNested(desc, WN_CONFIRM_POPUP_QUERY);
    01003
    01004     this->parent = parent;
    01005     this->left = parent->left + (parent->width / 2) - (this->width / 2);
    01006     this->top = parent->top + (parent->height / 2) - (this->height / 2);
    01007   }
    01008
    01009   ~QueryWindow()
    01010   {
    01011     if (this->proc != NULL) this->proc(this->parent, false);
    01012   }
    01013
    01014   virtual void SetStringParameters(int widget) const
    01015   {
    01016     switch (widget) {
    01017       case WID_Q_CAPTION:
    01018         CopyInDParam(1, this->params, lengthof(this->params));
    01019         SetDParam(0, this->caption);
    01020         break;
    01021
    01022       case WID_Q_TEXT:
    01023         CopyInDParam(0, this->params, lengthof(this->params));
    01024         break;
    01025     }
    01026   }
    01027
    01028   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01029   {
    01030     if (widget != WID_Q_TEXT) return;
    01031
    01032     Dimension d = GetStringMultiLineBoundingBox(this->message, *size);
    01033     d.width += WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT;
    01034     d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    01035     *size = d;
    01036   }
    01037
    01038   virtual void DrawWidget(const Rect &r, int widget) const
    01039   {
    01040     if (widget != WID_Q_TEXT) return;
    01041
    01042     DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, r.top + WD_FRAMERECT_TOP, r.bottom - WD_FRAMERECT_BOTTOM,
    01043         this->message, TC_FROMSTRING, SA_CENTER);
    01044   }
    01045
    01046   virtual void OnClick(Point pt, int widget, int click_count)
    01047   {
    01048     switch (widget) {
    01049       case WID_Q_YES: {
    01050         /* in the Generate New World window, clicking 'Yes' causes
    01051          * DeleteNonVitalWindows() to be called - we shouldn't be in a window then */
    01052         QueryCallbackProc *proc = this->proc;
    01053         Window *parent = this->parent;
    01054         /* Prevent the destructor calling the callback function */
    01055         this->proc = NULL;
    01056         delete this;
    01057         if (proc != NULL) {
    01058           proc(parent, true);
    01059           proc = NULL;
    01060         }
    01061         break;
    01062       }
    01063       case WID_Q_NO:
    01064         delete this;
    01065         break;
    01066     }
    01067   }
    01068
    01069   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
    01070   {
    01071     /* ESC closes the window, Enter confirms the action */
    01072     switch (keycode) {
    01073       case WKC_RETURN:
    01074       case WKC_NUM_ENTER:
    01075         if (this->proc != NULL) {
    01076           this->proc(this->parent, true);
    01077           this->proc = NULL;
    01078         }
    01079         /* FALL THROUGH */
    01080       case WKC_ESC:
    01081         delete this;
    01082         return ES_HANDLED;
    01083     }
    01084     return ES_NOT_HANDLED;
    01085   }
    01086 };
    01087
    01088 static const NWidgetPart _nested_query_widgets[] = {
    01089   NWidget(NWID_HORIZONTAL),
    01090     NWidget(WWT_CLOSEBOX, COLOUR_RED),
    01091     NWidget(WWT_CAPTION, COLOUR_RED, WID_Q_CAPTION), SetDataTip(STR_JUST_STRING, STR_NULL),
    01092   EndContainer(),
    01093   NWidget(WWT_PANEL, COLOUR_RED), SetPIP(8, 15, 8),
    01094     NWidget(WWT_TEXT, COLOUR_RED, WID_Q_TEXT), SetMinimalSize(200, 12),
    01095     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(20, 29, 20),
    01096       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_Q_NO), SetMinimalSize(71, 12), SetDataTip(STR_QUIT_NO, STR_NULL),
    01097       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_Q_YES), SetMinimalSize(71, 12), SetDataTip(STR_QUIT_YES, STR_NULL),
    01098     EndContainer(),
    01099   EndContainer(),
    01100 };
    01101
    01102 static const WindowDesc _query_desc(
    01103   WDP_CENTER, 0, 0,
    01104   WC_CONFIRM_POPUP_QUERY, WC_NONE,
    01105   WDF_MODAL,
    01106   _nested_query_widgets, lengthof(_nested_query_widgets)
    01107 );
    01108
    01118 void ShowQuery(StringID caption, StringID message, Window *parent, QueryCallbackProc *callback)
    01119 {
    01120   if (parent == NULL) parent = FindWindowById(WC_MAIN_WINDOW, 0);
    01121
    01122   const Window *w;
    01123   FOR_ALL_WINDOWS_FROM_BACK(w) {
    01124     if (w->window_class != WC_CONFIRM_POPUP_QUERY) continue;
    01125
    01126     const QueryWindow *qw = (const QueryWindow *)w;
    01127     if (qw->parent != parent || qw->proc != callback) continue;
    01128
    01129     delete qw;
    01130     break;
    01131   }
    01132
    01133   new QueryWindow(&_query_desc, caption, message, parent, callback);
    01134 }