# misc_gui.cpp

Go to the documentation of this file.

    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 "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   "  Lo\xC3\xAF""c Guilloux (glx) - Windows Expert",
    00385   "  Michael Lutz (michi_cc) - Path based signals",
    00386   "  Owen Rudge (orudge) - Forum host, OS/2 port",
    00387   "  Peter Nelson (peter1138) - Spiritual descendant from NewGRF gods",
    00388   "  Ingo von Borstel (planetmaker) - Support",
    00389   "  Remko Bijker (Rubidium) - Lead coder and way more",
    00390   "  Zden\xC4\x9Bk Sojka (SmatZ) - Bug finder and fixer",
    00391   "  Jos\xC3\xA9 Soler (Terkhen) - General coding",
    00392   "  Thijs Marinussen (Yexo) - AI Framework",
    00393   "  Leif Linse (Zuu) - AI/Game Script",
    00394   "",
    00395   "Inactive Developers:",
    00396   "  Bjarni Corfitzen (Bjarni) - MacOSX port, coder and vehicles",
    00397   "  Victor Fischer (Celestar) - Programming everywhere you need him to",
    00398   "  Tam\xC3\xA1s Farag\xC3\xB3 (Darkvater) - Ex-Lead coder",
    00399   "  Jaroslav Mazanec (KUDr) - YAPG (Yet Another Pathfinder God) ;)",
    00400   "  Jonathan Coome (Maedhros) - High priest of the NewGRF Temple",
    00401   "  Attila B\xC3\xA1n (MiHaMiX) - Developer WebTranslator 1 and 2",
    00402   "  Christoph Mallon (Tron) - Programmer, code correctness police",
    00403   "",
    00404   "Retired Developers:",
    00405   "  Ludvig Strigeus (ludde) - OpenTTD author, main coder (0.1 - 0.3.3)",
    00406   "  Serge Paquet (vurlix) - Assistant project manager, coder (0.1 - 0.3.3)",
    00407   "  Dominik Scherer (dominik81) - Lead programmer, GUI expert (0.3.0 - 0.3.6)",
    00408   "  Benedikt Br\xC3\xBCggemeier (skidd13) - Bug fixer and code reworker",
    00409   "  Patric Stout (TrueBrain) - NoProgrammer (0.3 - 1.2), sys op (active)",
    00410   "",
    00411   "Special thanks go out to:",
    00412   "  Josef Drexler - For his great work on TTDPatch",
    00413   "  Marcin Grzegorczyk - For describing Transport Tycoon Deluxe internals",
    00414   "  Petr Baudi\xC5\xA1 (pasky) - Many patches, newGRF support",
    00415   "  Simon Sasburg (HackyKid) - Many bugfixes he has blessed us with",
    00416   "  Stefan Mei\xC3\x9Fner (sign_de) - For his work on the console",
    00417   "  Mike Ragsdale - OpenTTD installer",
    00418   "  Cian Duffy (MYOB) - BeOS port / manual writing",
    00419   "  Christian Rosentreter (tokai) - MorphOS / AmigaOS port",
    00420   "  Richard Kempton (richK) - additional airports, initial TGP implementation",
    00421   "",
    00422   "  Alberto Demichelis - Squirrel scripting language \xC2\xA9 2003-2008",
    00423   "  L. Peter Deutsch - MD5 implementation \xC2\xA9 1999, 2000, 2002",
    00424   "  Michael Blunck - Pre-signals and semaphores \xC2\xA9 2003",
    00425   "  George - Canal/Lock graphics \xC2\xA9 2003-2004",
    00426   "  Andrew Parkhouse (andythenorth) - River graphics",
    00427   "  David Dallaston (Pikka) - Tram tracks",
    00428   "  Marcin Grzegorczyk - Foundations for tracks on slopes",
    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
    00553 void ShowFeederIncomeAnimation(int x, int y, int z, Money transfer, Money income)
    00554 {
    00555   Point pt = RemapCoords(x, y, z);
    00556
    00557   SetDParam(0, transfer);
    00558   if (income == 0) {
    00559     AddTextEffect(STR_FEEDER, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00560   } else {
    00561     StringID msg = STR_FEEDER_COST;
    00562     if (income < 0) {
    00563       income = -income;
    00564       msg = STR_FEEDER_INCOME;
    00565     }
    00566     SetDParam(1, income);
    00567     AddTextEffect(msg, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00568   }
    00569 }
    00570
    00580 TextEffectID ShowFillingPercent(int x, int y, int z, uint8 percent, StringID string)
    00581 {
    00582   Point pt = RemapCoords(x, y, z);
    00583
    00584   assert(string != STR_NULL);
    00585
    00586   SetDParam(0, percent);
    00587   return AddTextEffect(string, pt.x, pt.y, 0, TE_STATIC);
    00588 }
    00589
    00595 void UpdateFillingPercent(TextEffectID te_id, uint8 percent, StringID string)
    00596 {
    00597   assert(string != STR_NULL);
    00598
    00599   SetDParam(0, percent);
    00600   UpdateTextEffect(te_id, string);
    00601 }
    00602
    00607 void HideFillingPercent(TextEffectID *te_id)
    00608 {
    00609   if (*te_id == INVALID_TE_ID) return;
    00610
    00611   RemoveTextEffect(*te_id);
    00612   *te_id = INVALID_TE_ID;
    00613 }
    00614
    00615 static const NWidgetPart _nested_tooltips_widgets[] = {
    00616   NWidget(WWT_PANEL, COLOUR_GREY, WID_TT_BACKGROUND), SetMinimalSize(200, 32), EndContainer(),
    00617 };
    00618
    00619 static const WindowDesc _tool_tips_desc(
    00620   WDP_MANUAL, 0, 0, // Coordinates and sizes are not used,
    00621   WC_TOOLTIPS, WC_NONE,
    00622   0,
    00623   _nested_tooltips_widgets, lengthof(_nested_tooltips_widgets)
    00624 );
    00625
    00627 struct TooltipsWindow : public Window
    00628 {
    00629   StringID string_id;
    00630   byte paramcount;
    00631   uint64 params[5];
    00632   TooltipCloseCondition close_cond;
    00633
    00634   TooltipsWindow(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip) : Window()
    00635   {
    00636     this->parent = parent;
    00637     this->string_id = str;
    00638     assert_compile(sizeof(this->params[0]) == sizeof(params[0]));
    00639     assert(paramcount <= lengthof(this->params));
    00640     memcpy(this->params, params, sizeof(this->params[0]) * paramcount);
    00641     this->paramcount = paramcount;
    00642     this->close_cond = close_tooltip;
    00643
    00644     this->InitNested(&_tool_tips_desc);
    00645
    00646     CLRBITS(this->flags, WF_WHITE_BORDER);
    00647   }
    00648
    00649   virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
    00650   {
    00651     /* Find the free screen space between the main toolbar at the top, and the statusbar at the bottom.
    00652      * Add a fixed distance 2 so the tooltip floats free from both bars.
    00653      */
    00654     int scr_top = GetMainViewTop() + 2;
    00655     int scr_bot = GetMainViewBottom() - 2;
    00656
    00657     Point pt;
    00658
    00659     /* Correctly position the tooltip position, watch out for window and cursor size
    00660      * Clamp value to below main toolbar and above statusbar. If tooltip would
    00661      * go below window, flip it so it is shown above the cursor */
    00662     pt.y = Clamp(_cursor.pos.y + _cursor.size.y + _cursor.offs.y + 5, scr_top, scr_bot);
    00663     if (pt.y + sm_height > scr_bot) pt.y = min(_cursor.pos.y + _cursor.offs.y - 5, scr_bot) - sm_height;
    00664     pt.x = sm_width >= _screen.width ? 0 : Clamp(_cursor.pos.x - (sm_width >> 1), 0, _screen.width - sm_width);
    00665
    00666     return pt;
    00667   }
    00668
    00669   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00670   {
    00671     /* There is only one widget. */
    00672     for (uint i = 0; i != this->paramcount; i++) SetDParam(i, this->params[i]);
    00673
    00674     size->width  = min(GetStringBoundingBox(this->string_id).width, 194);
    00675     size->height = GetStringHeight(this->string_id, size->width);
    00676
    00677     /* Increase slightly to have some space around the box. */
    00678     size->width  += 2 + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
    00679     size->height += 2 + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    00680   }
    00681
    00682   virtual void DrawWidget(const Rect &r, int widget) const
    00683   {
    00684     /* There is only one widget. */
    00685     GfxFillRect(r.left, r.top, r.right, r.bottom, PC_BLACK);
    00686     GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_LIGHT_YELLOW);
    00687
    00688     for (uint arg = 0; arg < this->paramcount; arg++) {
    00689       SetDParam(arg, this->params[arg]);
    00690     }
    00691     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);
    00692   }
    00693
    00694   virtual void OnMouseLoop()
    00695   {
    00696     /* Always close tooltips when the cursor is not in our window. */
    00697     if (!_cursor.in_window) {
    00698       delete this;
    00699       return;
    00700     }
    00701
    00702     /* We can show tooltips while dragging tools. These are shown as long as
    00703      * we are dragging the tool. Normal tooltips work with hover or rmb. */
    00704     switch (this->close_cond) {
    00705       case TCC_RIGHT_CLICK: if (!_right_button_down) delete this; break;
    00706       case TCC_LEFT_CLICK: if (!_left_button_down) delete this; break;
    00707       case TCC_HOVER: if (!_mouse_hovering) delete this; break;
    00708     }
    00709   }
    00710 };
    00711
    00720 void GuiShowTooltips(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip)
    00721 {
    00722   DeleteWindowById(WC_TOOLTIPS, 0);
    00723
    00724   if (str == STR_NULL) return;
    00725
    00726   new TooltipsWindow(parent, str, paramcount, params, close_tooltip);
    00727 }
    00728
    00729 HandleEditBoxResult QueryString::HandleEditBoxKey(Window *w, int wid, uint16 key, uint16 keycode, EventState &state)
    00730 {
    00731   if (!w->IsWidgetGloballyFocused(wid)) return HEBR_NOT_FOCUSED;
    00732
    00733   state = ES_HANDLED;
    00734
    00735   bool edited = false;
    00736
    00737   switch (keycode) {
    00738     case WKC_ESC: return HEBR_CANCEL;
    00739
    00740     case WKC_RETURN: case WKC_NUM_ENTER: return HEBR_CONFIRM;
    00741
    00742 #ifdef WITH_COCOA
    00743     case (WKC_META | 'V'):
    00744 #endif
    00745     case (WKC_CTRL | 'V'):
    00746       edited = this->text.InsertClipboard();
    00747       break;
    00748
    00749 #ifdef WITH_COCOA
    00750     case (WKC_META | 'U'):
    00751 #endif
    00752     case (WKC_CTRL | 'U'):
    00753       this->text.DeleteAll();
    00754       edited = true;
    00755       break;
    00756
    00757     case WKC_BACKSPACE: case WKC_DELETE:
    00758     case WKC_CTRL | WKC_BACKSPACE: case WKC_CTRL | WKC_DELETE:
    00759       edited = this->text.DeleteChar(keycode);
    00760       break;
    00761
    00762     case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
    00763     case WKC_CTRL | WKC_LEFT: case WKC_CTRL | WKC_RIGHT:
    00764       this->text.MovePos(keycode);
    00765       break;
    00766
    00767     default:
    00768       if (IsValidChar(key, this->afilter)) {
    00769         edited = this->text.InsertChar(key);
    00770       } else {
    00771         state = ES_NOT_HANDLED;
    00772       }
    00773       break;
    00774   }
    00775
    00776   return edited ? HEBR_EDITING : HEBR_CURSOR;
    00777 }
    00778
    00779 void QueryString::HandleEditBox(Window *w, int wid)
    00780 {
    00781   if (w->IsWidgetGloballyFocused(wid) && this->text.HandleCaret()) {
    00782     w->SetWidgetDirty(wid);
    00783
    00784     /* For the OSK also invalidate the parent window */
    00785     if (w->window_class == WC_OSK) w->InvalidateData();
    00786   }
    00787 }
    00788
    00789 void QueryString::DrawEditBox(const Window *w, int wid) const
    00790 {
    00791   const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
    00792
    00793   assert((wi->type & WWT_MASK) == WWT_EDITBOX);
    00794
    00795   bool rtl = _current_text_dir == TD_RTL;
    00796   Dimension sprite_size = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT);
    00797   int clearbtn_width = sprite_size.width + WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT;
    00798
    00799   int clearbtn_left  = wi->pos_x + (rtl ? 0 : wi->current_x - clearbtn_width);
    00800   int clearbtn_right = wi->pos_x + (rtl ? clearbtn_width : wi->current_x) - 1;
    00801   int left   = wi->pos_x + (rtl ? clearbtn_width : 0);
    00802   int right  = wi->pos_x + (rtl ? wi->current_x : wi->current_x - clearbtn_width) - 1;
    00803
    00804   int top    = wi->pos_y;
    00805   int bottom = wi->pos_y + wi->current_y - 1;
    00806
    00807   DrawFrameRect(clearbtn_left, top, clearbtn_right, bottom, wi->colour, wi->IsLowered() ? FR_LOWERED : FR_NONE);
    00808   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));
    00809   if (this->text.bytes == 1) GfxFillRect(clearbtn_left + 1, top + 1, clearbtn_right - 1, bottom - 1, _colour_gradient[wi->colour & 0xF][2], FILLRECT_CHECKER);
    00810
    00811   DrawFrameRect(left, top, right, bottom, wi->colour, FR_LOWERED | FR_DARKENED);
    00812   GfxFillRect(left + 1, top + 1, right - 1, bottom - 1, PC_BLACK);
    00813
    00814   /* Limit the drawing of the string inside the widget boundaries */
    00815   DrawPixelInfo dpi;
    00816   if (!FillDrawPixelInfo(&dpi, left + WD_FRAMERECT_LEFT, top + WD_FRAMERECT_TOP, right - left - WD_FRAMERECT_RIGHT, bottom - top - WD_FRAMERECT_BOTTOM)) return;
    00817
    00818   DrawPixelInfo *old_dpi = _cur_dpi;
    00819   _cur_dpi = &dpi;
    00820
    00821   /* We will take the current widget length as maximum width, with a small
    00822    * space reserved at the end for the caret to show */
    00823   const Textbuf *tb = &this->text;
    00824   int delta = min(0, (right - left) - tb->pixels - 10);
    00825
    00826   if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
    00827
    00828   DrawString(delta, tb->pixels, 0, tb->buf, TC_YELLOW);
    00829   bool focussed = w->IsWidgetGloballyFocused(wid) || IsOSKOpenedFor(w, wid);
    00830   if (focussed && tb->caret) {
    00831     int caret_width = GetStringBoundingBox("_").width;
    00832     DrawString(tb->caretxoffs + delta, tb->caretxoffs + delta + caret_width, 0, "_", TC_WHITE);
    00833   }
    00834
    00835   _cur_dpi = old_dpi;
    00836 }
    00837
    00838 void QueryString::ClickEditBox(Window *w, Point pt, int wid, int click_count, bool focus_changed)
    00839 {
    00840   const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
    00841
    00842   assert((wi->type & WWT_MASK) == WWT_EDITBOX);
    00843
    00844   bool rtl = _current_text_dir == TD_RTL;
    00845   int clearbtn_width = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT).width;
    00846
    00847   int clearbtn_left  = wi->pos_x + (rtl ? 0 : wi->current_x - clearbtn_width);
    00848
    00849   if (IsInsideBS(pt.x, clearbtn_left, clearbtn_width)) {
    00850     if (this->text.bytes > 1) {
    00851       this->text.DeleteAll();
    00852       w->HandleButtonClick(wid);
    00853       w->OnEditboxChanged(wid);
    00854     }
    00855     return;
    00856   }
    00857
    00858   if (w->window_class != WC_OSK && _settings_client.gui.osk_activation != OSKA_DISABLED &&
    00859     (!focus_changed || _settings_client.gui.osk_activation == OSKA_IMMEDIATELY) &&
    00860     (click_count == 2 || _settings_client.gui.osk_activation != OSKA_DOUBLE_CLICK)) {
    00861     /* Open the OSK window */
    00862     ShowOnScreenKeyboard(w, wid);
    00863   }
    00864 }
    00865
    00867 struct QueryStringWindow : public Window
    00868 {
    00869   QueryString editbox;
    00870   QueryStringFlags flags;
    00871
    00872   QueryStringWindow(StringID str, StringID caption, uint max_bytes, uint max_chars, const WindowDesc *desc, Window *parent, CharSetFilter afilter, QueryStringFlags flags) :
    00873       editbox(max_bytes, max_chars)
    00874   {
    00875     char *last_of = &this->editbox.text.buf[this->editbox.text.max_bytes - 1];
    00876     GetString(this->editbox.text.buf, str, last_of);
    00877     str_validate(this->editbox.text.buf, last_of, SVS_NONE);
    00878
    00879     /* Make sure the name isn't too long for the text buffer in the number of
    00880      * characters (not bytes). max_chars also counts the '\0' characters. */
    00881     while (Utf8StringLength(this->editbox.text.buf) + 1 > this->editbox.text.max_chars) {
    00882       *Utf8PrevChar(this->editbox.text.buf + strlen(this->editbox.text.buf)) = '\0';
    00883     }
    00884
    00885     this->editbox.text.UpdateSize();
    00886
    00887     if ((flags & QSF_ACCEPT_UNCHANGED) == 0) this->editbox.orig = strdup(this->editbox.text.buf);
    00888
    00889     this->querystrings[WID_QS_TEXT] = &this->editbox;
    00890     this->editbox.caption = caption;
    00891     this->editbox.cancel_button = WID_QS_CANCEL;
    00892     this->editbox.ok_button = WID_QS_OK;
    00893     this->editbox.afilter = afilter;
    00894     this->flags = flags;
    00895
    00896     this->InitNested(desc, WN_QUERY_STRING);
    00897
    00898     this->parent = parent;
    00899
    00900     this->SetFocusedWidget(WID_QS_TEXT);
    00901   }
    00902
    00903   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00904   {
    00905     if (widget == WID_QS_DEFAULT && (this->flags & QSF_ENABLE_DEFAULT) == 0) {
    00906       /* We don't want this widget to show! */
    00907       fill->width = 0;
    00908       resize->width = 0;
    00909       size->width = 0;
    00910     }
    00911   }
    00912
    00913   virtual void SetStringParameters(int widget) const
    00914   {
    00915     if (widget == WID_QS_CAPTION) SetDParam(0, this->editbox.caption);
    00916   }
    00917
    00918   void OnOk()
    00919   {
    00920     if (this->editbox.orig == NULL || strcmp(this->editbox.text.buf, this->editbox.orig) != 0) {
    00921       /* If the parent is NULL, the editbox is handled by general function
    00922        * HandleOnEditText */
    00923       if (this->parent != NULL) {
    00924         this->parent->OnQueryTextFinished(this->editbox.text.buf);
    00925       } else {
    00926         HandleOnEditText(this->editbox.text.buf);
    00927       }
    00928       this->editbox.handled = true;
    00929     }
    00930   }
    00931
    00932   virtual void OnClick(Point pt, int widget, int click_count)
    00933   {
    00934     switch (widget) {
    00935       case WID_QS_DEFAULT:
    00936         this->editbox.text.DeleteAll();
    00937         /* FALL THROUGH */
    00938       case WID_QS_OK:
    00939         this->OnOk();
    00940         /* FALL THROUGH */
    00941       case WID_QS_CANCEL:
    00942         delete this;
    00943         break;
    00944     }
    00945   }
    00946
    00947   ~QueryStringWindow()
    00948   {
    00949     if (!this->editbox.handled && this->parent != NULL) {
    00950       Window *parent = this->parent;
    00951       this->parent = NULL; // so parent doesn't try to delete us again
    00952       parent->OnQueryTextFinished(NULL);
    00953     }
    00954   }
    00955 };
    00956
    00957 static const NWidgetPart _nested_query_string_widgets[] = {
    00958   NWidget(NWID_HORIZONTAL),
    00959     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00960     NWidget(WWT_CAPTION, COLOUR_GREY, WID_QS_CAPTION), SetDataTip(STR_WHITE_STRING, STR_NULL),
    00961   EndContainer(),
    00962   NWidget(WWT_PANEL, COLOUR_GREY),
    00963     NWidget(WWT_EDITBOX, COLOUR_GREY, WID_QS_TEXT), SetMinimalSize(256, 12), SetFill(1, 1), SetPadding(2, 2, 2, 2),
    00964   EndContainer(),
    00965   NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
    00966     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QS_DEFAULT), SetMinimalSize(87, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_DEFAULT, STR_NULL),
    00967     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QS_CANCEL), SetMinimalSize(86, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_CANCEL, STR_NULL),
    00968     NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QS_OK), SetMinimalSize(87, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_OK, STR_NULL),
    00969   EndContainer(),
    00970 };
    00971
    00972 static const WindowDesc _query_string_desc(
    00973   WDP_CENTER, 0, 0,
    00974   WC_QUERY_STRING, WC_NONE,
    00975   0,
    00976   _nested_query_string_widgets, lengthof(_nested_query_string_widgets)
    00977 );
    00978
    00989 void ShowQueryString(StringID str, StringID caption, uint maxsize, Window *parent, CharSetFilter afilter, QueryStringFlags flags)
    00990 {
    00991   DeleteWindowByClass(WC_QUERY_STRING);
    00992   new QueryStringWindow(str, caption, ((flags & QSF_LEN_IN_CHARS) ? MAX_CHAR_LENGTH : 1) * maxsize, maxsize, &_query_string_desc, parent, afilter, flags);
    00993 }
    00994
    00998 struct QueryWindow : public Window {
    00999   QueryCallbackProc *proc;
    01000   uint64 params[10];
    01001   StringID message;
    01002   StringID caption;
    01003
    01004   QueryWindow(const WindowDesc *desc, StringID caption, StringID message, Window *parent, QueryCallbackProc *callback) : Window()
    01005   {
    01006     /* Create a backup of the variadic arguments to strings because it will be
    01007      * overridden pretty often. We will copy these back for drawing */
    01008     CopyOutDParam(this->params, 0, lengthof(this->params));
    01009     this->caption = caption;
    01010     this->message = message;
    01011     this->proc    = callback;
    01012
    01013     this->InitNested(desc, WN_CONFIRM_POPUP_QUERY);
    01014
    01015     this->parent = parent;
    01016     this->left = parent->left + (parent->width / 2) - (this->width / 2);
    01017     this->top = parent->top + (parent->height / 2) - (this->height / 2);
    01018   }
    01019
    01020   ~QueryWindow()
    01021   {
    01022     if (this->proc != NULL) this->proc(this->parent, false);
    01023   }
    01024
    01025   virtual void SetStringParameters(int widget) const
    01026   {
    01027     switch (widget) {
    01028       case WID_Q_CAPTION:
    01029         CopyInDParam(1, this->params, lengthof(this->params));
    01030         SetDParam(0, this->caption);
    01031         break;
    01032
    01033       case WID_Q_TEXT:
    01034         CopyInDParam(0, this->params, lengthof(this->params));
    01035         break;
    01036     }
    01037   }
    01038
    01039   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01040   {
    01041     if (widget != WID_Q_TEXT) return;
    01042
    01043     Dimension d = GetStringMultiLineBoundingBox(this->message, *size);
    01044     d.width += WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT;
    01045     d.height += WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    01046     *size = d;
    01047   }
    01048
    01049   virtual void DrawWidget(const Rect &r, int widget) const
    01050   {
    01051     if (widget != WID_Q_TEXT) return;
    01052
    01053     DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, r.top + WD_FRAMERECT_TOP, r.bottom - WD_FRAMERECT_BOTTOM,
    01054         this->message, TC_FROMSTRING, SA_CENTER);
    01055   }
    01056
    01057   virtual void OnClick(Point pt, int widget, int click_count)
    01058   {
    01059     switch (widget) {
    01060       case WID_Q_YES: {
    01061         /* in the Generate New World window, clicking 'Yes' causes
    01062          * DeleteNonVitalWindows() to be called - we shouldn't be in a window then */
    01063         QueryCallbackProc *proc = this->proc;
    01064         Window *parent = this->parent;
    01065         /* Prevent the destructor calling the callback function */
    01066         this->proc = NULL;
    01067         delete this;
    01068         if (proc != NULL) {
    01069           proc(parent, true);
    01070           proc = NULL;
    01071         }
    01072         break;
    01073       }
    01074       case WID_Q_NO:
    01075         delete this;
    01076         break;
    01077     }
    01078   }
    01079
    01080   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
    01081   {
    01082     /* ESC closes the window, Enter confirms the action */
    01083     switch (keycode) {
    01084       case WKC_RETURN:
    01085       case WKC_NUM_ENTER:
    01086         if (this->proc != NULL) {
    01087           this->proc(this->parent, true);
    01088           this->proc = NULL;
    01089         }
    01090         /* FALL THROUGH */
    01091       case WKC_ESC:
    01092         delete this;
    01093         return ES_HANDLED;
    01094     }
    01095     return ES_NOT_HANDLED;
    01096   }
    01097 };
    01098
    01099 static const NWidgetPart _nested_query_widgets[] = {
    01100   NWidget(NWID_HORIZONTAL),
    01101     NWidget(WWT_CLOSEBOX, COLOUR_RED),
    01102     NWidget(WWT_CAPTION, COLOUR_RED, WID_Q_CAPTION), SetDataTip(STR_JUST_STRING, STR_NULL),
    01103   EndContainer(),
    01104   NWidget(WWT_PANEL, COLOUR_RED), SetPIP(8, 15, 8),
    01105     NWidget(WWT_TEXT, COLOUR_RED, WID_Q_TEXT), SetMinimalSize(200, 12),
    01106     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(20, 29, 20),
    01107       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_Q_NO), SetMinimalSize(71, 12), SetDataTip(STR_QUIT_NO, STR_NULL),
    01108       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, WID_Q_YES), SetMinimalSize(71, 12), SetDataTip(STR_QUIT_YES, STR_NULL),
    01109     EndContainer(),
    01110   EndContainer(),
    01111 };
    01112
    01113 static const WindowDesc _query_desc(
    01114   WDP_CENTER, 0, 0,
    01115   WC_CONFIRM_POPUP_QUERY, WC_NONE,
    01116   WDF_MODAL,
    01117   _nested_query_widgets, lengthof(_nested_query_widgets)
    01118 );
    01119
    01129 void ShowQuery(StringID caption, StringID message, Window *parent, QueryCallbackProc *callback)
    01130 {
    01131   if (parent == NULL) parent = FindWindowById(WC_MAIN_WINDOW, 0);
    01132
    01133   const Window *w;
    01134   FOR_ALL_WINDOWS_FROM_BACK(w) {
    01135     if (w->window_class != WC_CONFIRM_POPUP_QUERY) continue;
    01136
    01137     const QueryWindow *qw = (const QueryWindow *)w;
    01138     if (qw->parent != parent || qw->proc != callback) continue;
    01139
    01140     delete qw;
    01141     break;
    01142   }
    01143
    01144   new QueryWindow(&_query_desc, caption, message, parent, callback);
    01145 }