# misc_gui.cpp

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    00001 /* $Id$ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013 #include "debug.h"
    00014 #include "landscape.h"
    00015 #include "newgrf_text.h"
    00016 #include "gui.h"
    00017 #include "viewport_func.h"
    00018 #include "gfx_func.h"
    00019 #include "command_func.h"
    00020 #include "company_func.h"
    00021 #include "town.h"
    00022 #include "string_func.h"
    00023 #include "company_base.h"
    00024 #include "texteff.hpp"
    00025 #include "company_manager_face.h"
    00026 #include "strings_func.h"
    00027 #include "zoom_func.h"
    00028 #include "window_func.h"
    00029 #include "querystring_gui.h"
    00030 #include "console_func.h"
    00031 #include "core/geometry_func.hpp"
    00032 #include "newgrf_debug.h"
    00033
    00034 #include "table/strings.h"
    00035
    00036 #include <time.h>
    00037
    00044 bool GetClipboardContents(char *buffer, size_t buff_len);
    00045
    00046 int _caret_timer;
    00047
    00048
    00050 enum LandInfoWidgets {
    00051   LIW_BACKGROUND,
    00052 };
    00053
    00054 static const NWidgetPart _nested_land_info_widgets[] = {
    00055   NWidget(NWID_HORIZONTAL),
    00056     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00057     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_LAND_AREA_INFORMATION_CAPTION, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00058     NWidget(WWT_DEBUGBOX, COLOUR_GREY),
    00059   EndContainer(),
    00060   NWidget(WWT_PANEL, COLOUR_GREY, LIW_BACKGROUND), EndContainer(),
    00061 };
    00062
    00063 static const WindowDesc _land_info_desc(
    00064   WDP_AUTO, 0, 0,
    00065   WC_LAND_INFO, WC_NONE,
    00066   0,
    00067   _nested_land_info_widgets, lengthof(_nested_land_info_widgets)
    00068 );
    00069
    00070 class LandInfoWindow : public Window {
    00071   enum LandInfoLines {
    00072     LAND_INFO_CENTERED_LINES   = 12,
    00073     LAND_INFO_MULTICENTER_LINE = LAND_INFO_CENTERED_LINES,
    00074     LAND_INFO_LINE_END,
    00075   };
    00076
    00077   static const uint LAND_INFO_LINE_BUFF_SIZE = 512;
    00078
    00079 public:
    00080   char landinfo_data[LAND_INFO_LINE_END][LAND_INFO_LINE_BUFF_SIZE];
    00081   TileIndex tile;
    00082
    00083   virtual void DrawWidget(const Rect &r, int widget) const
    00084   {
    00085     if (widget != LIW_BACKGROUND) return;
    00086
    00087     uint y = r.top + WD_TEXTPANEL_TOP;
    00088     for (uint i = 0; i < LAND_INFO_CENTERED_LINES; i++) {
    00089       if (StrEmpty(this->landinfo_data[i])) break;
    00090
    00091       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);
    00092       y += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
    00093       if (i == 0) y += 4;
    00094     }
    00095
    00096     if (!StrEmpty(this->landinfo_data[LAND_INFO_MULTICENTER_LINE])) {
    00097       SetDParamStr(0, this->landinfo_data[LAND_INFO_MULTICENTER_LINE]);
    00098       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);
    00099     }
    00100   }
    00101
    00102   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00103   {
    00104     if (widget != LIW_BACKGROUND) return;
    00105
    00106     size->height = WD_TEXTPANEL_TOP + WD_TEXTPANEL_BOTTOM;
    00107     for (uint i = 0; i < LAND_INFO_CENTERED_LINES; i++) {
    00108       if (StrEmpty(this->landinfo_data[i])) break;
    00109
    00110       uint width = GetStringBoundingBox(this->landinfo_data[i]).width + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT;
    00111       size->width = max(size->width, width);
    00112
    00113       size->height += FONT_HEIGHT_NORMAL + WD_PAR_VSEP_NORMAL;
    00114       if (i == 0) size->height += 4;
    00115     }
    00116
    00117     if (!StrEmpty(this->landinfo_data[LAND_INFO_MULTICENTER_LINE])) {
    00118       uint width = GetStringBoundingBox(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]).width + WD_FRAMETEXT_LEFT + WD_FRAMETEXT_RIGHT;
    00119       size->width = max(size->width, min(300u, width));
    00120       SetDParamStr(0, this->landinfo_data[LAND_INFO_MULTICENTER_LINE]);
    00121       size->height += GetStringHeight(STR_JUST_RAW_STRING, size->width - WD_FRAMETEXT_LEFT - WD_FRAMETEXT_RIGHT);
    00122     }
    00123   }
    00124
    00125   LandInfoWindow(TileIndex tile) : Window(), tile(tile)
    00126   {
    00127     this->InitNested(&_land_info_desc);
    00128
    00129 #if defined(_DEBUG)
    00130 # define LANDINFOD_LEVEL 0
    00131 #else
    00132 # define LANDINFOD_LEVEL 1
    00133 #endif
    00134     DEBUG(misc, LANDINFOD_LEVEL, "TILE: %#x (%i,%i)", tile, TileX(tile), TileY(tile));
    00135     DEBUG(misc, LANDINFOD_LEVEL, "type_height  = %#x", _m[tile].type_height);
    00136     DEBUG(misc, LANDINFOD_LEVEL, "m1           = %#x", _m[tile].m1);
    00137     DEBUG(misc, LANDINFOD_LEVEL, "m2           = %#x", _m[tile].m2);
    00138     DEBUG(misc, LANDINFOD_LEVEL, "m3           = %#x", _m[tile].m3);
    00139     DEBUG(misc, LANDINFOD_LEVEL, "m4           = %#x", _m[tile].m4);
    00140     DEBUG(misc, LANDINFOD_LEVEL, "m5           = %#x", _m[tile].m5);
    00141     DEBUG(misc, LANDINFOD_LEVEL, "m6           = %#x", _m[tile].m6);
    00142     DEBUG(misc, LANDINFOD_LEVEL, "m7           = %#x", _me[tile].m7);
    00143 #undef LANDINFOD_LEVEL
    00144   }
    00145
    00146   virtual void OnInit()
    00147   {
    00148     Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
    00149
    00150     /* Because build_date is not set yet in every TileDesc, we make sure it is empty */
    00151     TileDesc td;
    00152
    00153     td.build_date = INVALID_DATE;
    00154
    00155     /* Most tiles have only one owner, but
    00156      *  - drivethrough roadstops can be build on town owned roads (up to 2 owners) and
    00157      *  - roads can have up to four owners (railroad, road, tram, 3rd-roadtype "highway").
    00158      */
    00159     td.owner_type[0] = STR_LAND_AREA_INFORMATION_OWNER; // At least one owner is displayed, though it might be "N/A".
    00160     td.owner_type[1] = STR_NULL;       // STR_NULL results in skipping the owner
    00161     td.owner_type[2] = STR_NULL;
    00162     td.owner_type[3] = STR_NULL;
    00163     td.owner[0] = OWNER_NONE;
    00164     td.owner[1] = OWNER_NONE;
    00165     td.owner[2] = OWNER_NONE;
    00166     td.owner[3] = OWNER_NONE;
    00167
    00168     td.station_class = STR_NULL;
    00169     td.station_name = STR_NULL;
    00170     td.airport_class = STR_NULL;
    00171     td.airport_name = STR_NULL;
    00172     td.airport_tile_name = STR_NULL;
    00173     td.rail_speed = 0;
    00174
    00175     td.grf = NULL;
    00176
    00177     CargoArray acceptance;
    00178     AddAcceptedCargo(tile, acceptance, NULL);
    00179     GetTileDesc(tile, &td);
    00180
    00181     uint line_nr = 0;
    00182
    00183     /* Tiletype */
    00184     SetDParam(0, td.dparam[0]);
    00185     GetString(this->landinfo_data[line_nr], td.str, lastof(this->landinfo_data[line_nr]));
    00186     line_nr++;
    00187
    00188     /* Height */
    00189     SetDParam(0, TileHeight(tile));
    00190     GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_LANDINFO_HEIGHT, lastof(this->landinfo_data[line_nr]));
    00191     line_nr++;
    00192
    00193     /* Up to four owners */
    00194     for (uint i = 0; i < 4; i++) {
    00195       if (td.owner_type[i] == STR_NULL) continue;
    00196
    00197       SetDParam(0, STR_LAND_AREA_INFORMATION_OWNER_N_A);
    00198       if (td.owner[i] != OWNER_NONE && td.owner[i] != OWNER_WATER) GetNameOfOwner(td.owner[i], tile);
    00199       GetString(this->landinfo_data[line_nr], td.owner_type[i], lastof(this->landinfo_data[line_nr]));
    00200       line_nr++;
    00201     }
    00202
    00203     /* Cost to clear/revenue when cleared */
    00204     StringID str = STR_LAND_AREA_INFORMATION_COST_TO_CLEAR_N_A;
    00205     Company *c = Company::GetIfValid(_local_company);
    00206     if (c != NULL) {
    00207       Money old_money = c->money;
    00208       c->money = INT64_MAX;
    00209       assert(_current_company == _local_company);
    00210       CommandCost costclear = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
    00211       c->money = old_money;
    00212       if (costclear.Succeeded()) {
    00213         Money cost = costclear.GetCost();
    00214         if (cost < 0) {
    00215           cost = -cost; // Negate negative cost to a positive revenue
    00216           str = STR_LAND_AREA_INFORMATION_REVENUE_WHEN_CLEARED;
    00217         } else {
    00218           str = STR_LAND_AREA_INFORMATION_COST_TO_CLEAR;
    00219         }
    00220         SetDParam(0, cost);
    00221       }
    00222     }
    00223     GetString(this->landinfo_data[line_nr], str, lastof(this->landinfo_data[line_nr]));
    00224     line_nr++;
    00225
    00226     /* Location */
    00227     char tmp[16];
    00228     snprintf(tmp, lengthof(tmp), "0x%.4X", tile);
    00229     SetDParam(0, TileX(tile));
    00230     SetDParam(1, TileY(tile));
    00231     SetDParam(2, GetTileZ(tile) / TILE_HEIGHT);
    00232     SetDParamStr(3, tmp);
    00233     GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_LANDINFO_COORDS, lastof(this->landinfo_data[line_nr]));
    00234     line_nr++;
    00235
    00236     /* Local authority */
    00237     SetDParam(0, STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY_NONE);
    00238     if (t != NULL) {
    00239       SetDParam(0, STR_TOWN_NAME);
    00240       SetDParam(1, t->index);
    00241     }
    00242     GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_LOCAL_AUTHORITY, lastof(this->landinfo_data[line_nr]));
    00243     line_nr++;
    00244
    00245     /* Build date */
    00246     if (td.build_date != INVALID_DATE) {
    00247       SetDParam(0, td.build_date);
    00248       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_BUILD_DATE, lastof(this->landinfo_data[line_nr]));
    00249       line_nr++;
    00250     }
    00251
    00252     /* Station class */
    00253     if (td.station_class != STR_NULL) {
    00254       SetDParam(0, td.station_class);
    00255       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_STATION_CLASS, lastof(this->landinfo_data[line_nr]));
    00256       line_nr++;
    00257     }
    00258
    00259     /* Station type name */
    00260     if (td.station_name != STR_NULL) {
    00261       SetDParam(0, td.station_name);
    00262       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_STATION_TYPE, lastof(this->landinfo_data[line_nr]));
    00263       line_nr++;
    00264     }
    00265
    00266     /* Airport class */
    00267     if (td.airport_class != STR_NULL) {
    00268       SetDParam(0, td.airport_class);
    00269       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_AIRPORT_CLASS, lastof(this->landinfo_data[line_nr]));
    00270       line_nr++;
    00271     }
    00272
    00273     /* Airport name */
    00274     if (td.airport_name != STR_NULL) {
    00275       SetDParam(0, td.airport_name);
    00276       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_AIRPORT_NAME, lastof(this->landinfo_data[line_nr]));
    00277       line_nr++;
    00278     }
    00279
    00280     /* Airport tile name */
    00281     if (td.airport_tile_name != STR_NULL) {
    00282       SetDParam(0, td.airport_tile_name);
    00283       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_AIRPORTTILE_NAME, lastof(this->landinfo_data[line_nr]));
    00284       line_nr++;
    00285     }
    00286
    00287     /* Rail speed limit */
    00288     if (td.rail_speed != 0) {
    00289       SetDParam(0, td.rail_speed);
    00290       GetString(this->landinfo_data[line_nr], STR_LANG_AREA_INFORMATION_RAIL_SPEED_LIMIT, lastof(this->landinfo_data[line_nr]));
    00291       line_nr++;
    00292     }
    00293
    00294     /* NewGRF name */
    00295     if (td.grf != NULL) {
    00296       SetDParamStr(0, td.grf);
    00297       GetString(this->landinfo_data[line_nr], STR_LAND_AREA_INFORMATION_NEWGRF_NAME, lastof(this->landinfo_data[line_nr]));
    00298       line_nr++;
    00299     }
    00300
    00301     assert(line_nr < LAND_INFO_CENTERED_LINES);
    00302
    00303     /* Mark last line empty */
    00304     this->landinfo_data[line_nr][0] = '\0';
    00305
    00306     /* Cargo acceptance is displayed in a extra multiline */
    00307     char *strp = GetString(this->landinfo_data[LAND_INFO_MULTICENTER_LINE], STR_LAND_AREA_INFORMATION_CARGO_ACCEPTED, lastof(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]));
    00308     bool found = false;
    00309
    00310     for (CargoID i = 0; i < NUM_CARGO; ++i) {
    00311       if (acceptance[i] > 0) {
    00312         /* Add a comma between each item. */
    00313         if (found) {
    00314           *strp++ = ',';
    00315           *strp++ = ' ';
    00316         }
    00317         found = true;
    00318
    00319         /* If the accepted value is less than 8, show it in 1/8:ths */
    00320         if (acceptance[i] < 8) {
    00321           SetDParam(0, acceptance[i]);
    00322           SetDParam(1, CargoSpec::Get(i)->name);
    00323           strp = GetString(strp, STR_LAND_AREA_INFORMATION_CARGO_EIGHTS, lastof(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]));
    00324         } else {
    00325           strp = GetString(strp, CargoSpec::Get(i)->name, lastof(this->landinfo_data[LAND_INFO_MULTICENTER_LINE]));
    00326         }
    00327       }
    00328     }
    00329     if (!found) this->landinfo_data[LAND_INFO_MULTICENTER_LINE][0] = '\0';
    00330   }
    00331
    00332   virtual bool IsNewGRFInspectable() const
    00333   {
    00334     return ::IsNewGRFInspectable(GetGrfSpecFeature(this->tile), this->tile);
    00335   }
    00336
    00337   virtual void ShowNewGRFInspectWindow() const
    00338   {
    00339 		::ShowNewGRFInspectWindow(GetGrfSpecFeature(this->tile), this->tile);
    00340   }
    00341
    00347   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    00348   {
    00349     if (!gui_scope) return;
    00350     switch (data) {
    00351       case 1:
    00352         /* ReInit, "debug" sprite might have changed */
    00353         this->ReInit();
    00354         break;
    00355     }
    00356   }
    00357 };
    00358
    00363 void ShowLandInfo(TileIndex tile)
    00364 {
    00365   DeleteWindowById(WC_LAND_INFO, 0);
    00366   new LandInfoWindow(tile);
    00367 }
    00368
    00370 enum AboutWidgets {
    00371   AW_SCROLLING_TEXT,
    00372   AW_WEBSITE,
    00373 };
    00374
    00375 static const NWidgetPart _nested_about_widgets[] = {
    00376   NWidget(NWID_HORIZONTAL),
    00377     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    00378     NWidget(WWT_CAPTION, COLOUR_GREY), SetDataTip(STR_ABOUT_OPENTTD, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    00379   EndContainer(),
    00380   NWidget(WWT_PANEL, COLOUR_GREY), SetPIP(4, 2, 4),
    00381     NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_ABOUT_ORIGINAL_COPYRIGHT, STR_NULL),
    00382     NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_ABOUT_VERSION, STR_NULL),
    00383     NWidget(WWT_FRAME, COLOUR_GREY), SetPadding(0, 5, 1, 5),
    00384       NWidget(WWT_EMPTY, INVALID_COLOUR, AW_SCROLLING_TEXT),
    00385     EndContainer(),
    00386     NWidget(WWT_LABEL, COLOUR_GREY, AW_WEBSITE), SetDataTip(STR_BLACK_RAW_STRING, STR_NULL),
    00387     NWidget(WWT_LABEL, COLOUR_GREY), SetDataTip(STR_ABOUT_COPYRIGHT_OPENTTD, STR_NULL),
    00388   EndContainer(),
    00389 };
    00390
    00391 static const WindowDesc _about_desc(
    00392   WDP_CENTER, 0, 0,
    00393   WC_GAME_OPTIONS, WC_NONE,
    00394   0,
    00395   _nested_about_widgets, lengthof(_nested_about_widgets)
    00396 );
    00397
    00398 static const char * const _credits[] = {
    00399   "Original design by Chris Sawyer",
    00400   "Original graphics by Simon Foster",
    00401   "",
    00402   "The OpenTTD team (in alphabetical order):",
    00403   "  Albert Hofkamp (Alberth) - GUI expert",
    00404   "  Jean-Fran\xC3\xA7ois Claeys (Belugas) - GUI, newindustries and more",
    00405   "  Matthijs Kooijman (blathijs) - Pathfinder-guru, pool rework",
    00406   "  Christoph Elsenhans (frosch) - General coding",
    00407   "  Lo\xC3\xAF""c Guilloux (glx) - Windows Expert",
    00408   "  Michael Lutz (michi_cc) - Path based signals",
    00409   "  Owen Rudge (orudge) - Forum host, OS/2 port",
    00410   "  Peter Nelson (peter1138) - Spiritual descendant from NewGRF gods",
    00411   "  Ingo von Borstel (planetmaker) - Support",
    00412   "  Remko Bijker (Rubidium) - Lead coder and way more",
    00413   "  Zden\xC4\x9Bk Sojka (SmatZ) - Bug finder and fixer",
    00414   "  Jos\xC3\xA9 Soler (Terkhen) - General coding",
    00415   "  Thijs Marinussen (Yexo) - AI Framework",
    00416   "",
    00417   "Inactive Developers:",
    00418   "  Bjarni Corfitzen (Bjarni) - MacOSX port, coder and vehicles",
    00419   "  Victor Fischer (Celestar) - Programming everywhere you need him to",
    00420   "  Tam\xC3\xA1s Farag\xC3\xB3 (Darkvater) - Ex-Lead coder",
    00421   "  Jaroslav Mazanec (KUDr) - YAPG (Yet Another Pathfinder God) ;)",
    00422   "  Jonathan Coome (Maedhros) - High priest of the NewGRF Temple",
    00423   "  Attila B\xC3\xA1n (MiHaMiX) - Developer WebTranslator 1 and 2",
    00424   "  Christoph Mallon (Tron) - Programmer, code correctness police",
    00425   "",
    00426   "Retired Developers:",
    00427   "  Ludvig Strigeus (ludde) - OpenTTD author, main coder (0.1 - 0.3.3)",
    00428   "  Serge Paquet (vurlix) - Assistant project manager, coder (0.1 - 0.3.3)",
    00429   "  Dominik Scherer (dominik81) - Lead programmer, GUI expert (0.3.0 - 0.3.6)",
    00430   "  Benedikt Br\xC3\xBCggemeier (skidd13) - Bug fixer and code reworker",
    00431   "  Patric Stout (TrueLight) - Programmer (0.3 - pre0.7), sys op (active)",
    00432   "",
    00433   "Special thanks go out to:",
    00434   "  Josef Drexler - For his great work on TTDPatch",
    00435   "  Marcin Grzegorczyk - For describing Transport Tycoon Deluxe internals",
    00436   "  Petr Baudi\xC5\xA1 (pasky) - Many patches, newGRF support",
    00437   "  Stefan Mei\xC3\x9Fner (sign_de) - For his work on the console",
    00438   "  Simon Sasburg (HackyKid) - Many bugfixes he has blessed us with",
    00439   "  Cian Duffy (MYOB) - BeOS port / manual writing",
    00440   "  Christian Rosentreter (tokai) - MorphOS / AmigaOS port",
    00441   "  Richard Kempton (richK) - additional airports, initial TGP implementation",
    00442   "",
    00443   "  Alberto Demichelis - Squirrel scripting language \xC2\xA9 2003-2008",
    00444   "  L. Peter Deutsch - MD5 implementation \xC2\xA9 1999, 2000, 2002",
    00445   "  Michael Blunck - Pre-Signals and Semaphores \xC2\xA9 2003",
    00446   "  George - Canal/Lock graphics \xC2\xA9 2003-2004",
    00447   "  David Dallaston - Tram tracks",
    00448   "  Marcin Grzegorczyk - Foundations for Tracks on Slopes",
    00449   "  All Translators - Who made OpenTTD a truly international game",
    00450   "  Bug Reporters - Without whom OpenTTD would still be full of bugs!",
    00451   "",
    00452   "",
    00453   "And last but not least:",
    00454   "  Chris Sawyer - For an amazing game!"
    00455 };
    00456
    00457 struct AboutWindow : public Window {
    00458   int text_position;
    00459   byte counter;
    00460   int line_height;
    00461   static const int num_visible_lines = 19;
    00462
    00463   AboutWindow() : Window()
    00464   {
    00465     this->InitNested(&_about_desc);
    00466
    00467     this->counter = 5;
    00468     this->text_position = this->GetWidget<NWidgetBase>(AW_SCROLLING_TEXT)->pos_y + this->GetWidget<NWidgetBase>(AW_SCROLLING_TEXT)->current_y;
    00469   }
    00470
    00471   virtual void SetStringParameters(int widget) const
    00472   {
    00473     if (widget == AW_WEBSITE) SetDParamStr(0, "Website: http://www.openttd.org");
    00474   }
    00475
    00476   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00477   {
    00478     if (widget != AW_SCROLLING_TEXT) return;
    00479
    00480     this->line_height = FONT_HEIGHT_NORMAL;
    00481
    00482     Dimension d;
    00483     d.height = this->line_height * num_visible_lines;
    00484
    00485     d.width = 0;
    00486     for (uint i = 0; i < lengthof(_credits); i++) {
    00487       d.width = max(d.width, GetStringBoundingBox(_credits[i]).width);
    00488     }
    00489     *size = maxdim(*size, d);
    00490   }
    00491
    00492   virtual void DrawWidget(const Rect &r, int widget) const
    00493   {
    00494     if (widget != AW_SCROLLING_TEXT) return;
    00495
    00496     int y = this->text_position;
    00497
    00498     /* Show all scrolling _credits */
    00499     for (uint i = 0; i < lengthof(_credits); i++) {
    00500       if (y >= r.top + 7 && y < r.bottom - this->line_height) {
    00501         DrawString(r.left, r.right, y, _credits[i], TC_BLACK, SA_LEFT | SA_FORCE);
    00502       }
    00503       y += this->line_height;
    00504     }
    00505   }
    00506
    00507   virtual void OnTick()
    00508   {
    00509     if (--this->counter == 0) {
    00510       this->counter = 5;
    00511       this->text_position--;
    00512       /* If the last text has scrolled start a new from the start */
    00513       if (this->text_position < (int)(this->GetWidget<NWidgetBase>(AW_SCROLLING_TEXT)->pos_y - lengthof(_credits) * this->line_height)) {
    00514         this->text_position = this->GetWidget<NWidgetBase>(AW_SCROLLING_TEXT)->pos_y + this->GetWidget<NWidgetBase>(AW_SCROLLING_TEXT)->current_y;
    00515       }
    00516       this->SetDirty();
    00517     }
    00518   }
    00519 };
    00520
    00521 void ShowAboutWindow()
    00522 {
    00523   DeleteWindowById(WC_GAME_OPTIONS, 0);
    00524   new AboutWindow();
    00525 }
    00526
    00528 enum ErrorMessageWidgets {
    00529   EMW_CAPTION,
    00530   EMW_FACE,
    00531   EMW_MESSAGE,
    00532 };
    00533
    00534 static const NWidgetPart _nested_errmsg_widgets[] = {
    00535   NWidget(NWID_HORIZONTAL),
    00536     NWidget(WWT_CLOSEBOX, COLOUR_RED),
    00537     NWidget(WWT_CAPTION, COLOUR_RED, EMW_CAPTION), SetDataTip(STR_ERROR_MESSAGE_CAPTION, STR_NULL),
    00538   EndContainer(),
    00539   NWidget(WWT_PANEL, COLOUR_RED),
    00540     NWidget(WWT_EMPTY, COLOUR_RED, EMW_MESSAGE), SetPadding(0, 2, 0, 2), SetMinimalSize(236, 32),
    00541   EndContainer(),
    00542 };
    00543
    00544 static const WindowDesc _errmsg_desc(
    00545   WDP_MANUAL, 0, 0,
    00546   WC_ERRMSG, WC_NONE,
    00547   0,
    00548   _nested_errmsg_widgets, lengthof(_nested_errmsg_widgets)
    00549 );
    00550
    00551 static const NWidgetPart _nested_errmsg_face_widgets[] = {
    00552   NWidget(NWID_HORIZONTAL),
    00553     NWidget(WWT_CLOSEBOX, COLOUR_RED),
    00554     NWidget(WWT_CAPTION, COLOUR_RED, EMW_CAPTION), SetDataTip(STR_ERROR_MESSAGE_CAPTION_OTHER_COMPANY, STR_NULL),
    00555   EndContainer(),
    00556   NWidget(WWT_PANEL, COLOUR_RED),
    00557     NWidget(NWID_HORIZONTAL), SetPIP(2, 1, 2),
    00558       NWidget(WWT_EMPTY, COLOUR_RED, EMW_FACE), SetMinimalSize(92, 119), SetFill(0, 1), SetPadding(2, 0, 1, 0),
    00559       NWidget(WWT_EMPTY, COLOUR_RED, EMW_MESSAGE), SetFill(0, 1), SetMinimalSize(238, 123),
    00560     EndContainer(),
    00561   EndContainer(),
    00562 };
    00563
    00564 static const WindowDesc _errmsg_face_desc(
    00565   WDP_MANUAL, 0, 0,
    00566   WC_ERRMSG, WC_NONE,
    00567   0,
    00568   _nested_errmsg_face_widgets, lengthof(_nested_errmsg_face_widgets)
    00569 );
    00570
    00572 struct ErrmsgWindow : public Window {
    00573 private:
    00574   uint duration;
    00575   uint64 decode_params[20];
    00576   StringID summary_msg;
    00577   StringID detailed_msg;
    00578   uint height_summary;
    00579   uint height_detailed;
    00580   Point position;
    00581   CompanyID face;
    00582
    00583 public:
    00584   ErrmsgWindow(Point pt, StringID summary_msg, StringID detailed_msg, bool no_timeout) : Window()
    00585   {
    00586     this->position = pt;
    00587     this->duration = no_timeout ? 0 : _settings_client.gui.errmsg_duration;
    00588     CopyOutDParam(this->decode_params, 0, lengthof(this->decode_params));
    00589     this->summary_msg  = summary_msg;
    00590     this->detailed_msg = detailed_msg;
    00591
    00592     CompanyID company = (CompanyID)GetDParamX(this->decode_params, 2);
    00593     this->face = (this->detailed_msg == STR_ERROR_OWNED_BY && company < MAX_COMPANIES) ? company : INVALID_COMPANY;
    00594     const WindowDesc *desc = (face == INVALID_COMPANY) ? &_errmsg_desc : &_errmsg_face_desc;
    00595
    00596     assert(summary_msg != INVALID_STRING_ID);
    00597
    00598     this->InitNested(desc);
    00599   }
    00600
    00601   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00602   {
    00603     if (widget != EMW_MESSAGE) return;
    00604
    00605     CopyInDParam(0, this->decode_params, lengthof(this->decode_params));
    00606     /* If the error message comes from a NewGRF, we must use the text ref. stack reserved for error messages.
    00607      * If the message doesn't come from a NewGRF, it won't use the TTDP-style text ref. stack, so we won't hurt anything
    00608      */
    00609     SwitchToErrorRefStack();
    00610     RewindTextRefStack();
    00611
    00612     int text_width = max(0, (int)size->width - WD_FRAMETEXT_LEFT - WD_FRAMETEXT_RIGHT);
    00613     this->height_summary  = GetStringHeight(this->summary_msg, text_width);
    00614     this->height_detailed = (this->detailed_msg == INVALID_STRING_ID) ? 0 : GetStringHeight(this->detailed_msg, text_width);
    00615
    00616     SwitchToNormalRefStack(); // Switch back to the normal text ref. stack for NewGRF texts.
    00617
    00618     uint panel_height = WD_FRAMERECT_TOP + this->height_summary + WD_FRAMERECT_BOTTOM;
    00619     if (this->detailed_msg != INVALID_STRING_ID) panel_height += this->height_detailed + WD_PAR_VSEP_WIDE;
    00620
    00621     size->height = max(size->height, panel_height);
    00622   }
    00623
    00624   virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
    00625   {
    00626     /* Position (0, 0) given, center the window. */
    00627     if (this->position.x == 0 && this->position.y == 0) {
    00628       Point pt = {(_screen.width - sm_width) >> 1, (_screen.height - sm_height) >> 1};
    00629       return pt;
    00630     }
    00631
    00632     /* Find the free screen space between the main toolbar at the top, and the statusbar at the bottom.
    00633      * Add a fixed distance 20 to make it less cluttered.
    00634      */
    00635     int scr_top = GetMainViewTop() + 20;
    00636     int scr_bot = GetMainViewBottom() - 20;
    00637
    00638     Point pt = RemapCoords2(this->position.x, this->position.y);
    00639     const ViewPort *vp = FindWindowById(WC_MAIN_WINDOW, 0)->viewport;
    00640     if (this->face == INVALID_COMPANY) {
    00641       /* move x pos to opposite corner */
    00642       pt.x = UnScaleByZoom(pt.x - vp->virtual_left, vp->zoom) + vp->left;
    00643       pt.x = (pt.x < (_screen.width >> 1)) ? _screen.width - sm_width - 20 : 20; // Stay 20 pixels away from the edge of the screen.
    00644
    00645       /* move y pos to opposite corner */
    00646       pt.y = UnScaleByZoom(pt.y - vp->virtual_top, vp->zoom) + vp->top;
    00647       pt.y = (pt.y < (_screen.height >> 1)) ? scr_bot - sm_height : scr_top;
    00648     } else {
    00649       pt.x = Clamp(UnScaleByZoom(pt.x - vp->virtual_left, vp->zoom) + vp->left - (sm_width / 2),  0, _screen.width  - sm_width);
    00650       pt.y = Clamp(UnScaleByZoom(pt.y - vp->virtual_top,  vp->zoom) + vp->top  - (sm_height / 2), scr_top, scr_bot - sm_height);
    00651     }
    00652     return pt;
    00653   }
    00654
    00660   virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
    00661   {
    00662     /* If company gets shut down, while displaying an error about it, remove the error message. */
    00663     if (this->face != INVALID_COMPANY && !Company::IsValidID(this->face)) delete this;
    00664   }
    00665
    00666   virtual void SetStringParameters(int widget) const
    00667   {
    00668     if (widget == EMW_CAPTION) CopyInDParam(0, this->decode_params, lengthof(this->decode_params));
    00669   }
    00670
    00671   virtual void DrawWidget(const Rect &r, int widget) const
    00672   {
    00673     switch (widget) {
    00674       case EMW_FACE: {
    00675         const Company *c = Company::Get(this->face);
    00676         DrawCompanyManagerFace(c->face, c->colour, r.left, r.top);
    00677         break;
    00678       }
    00679
    00680       case EMW_MESSAGE:
    00681         CopyInDParam(0, this->decode_params, lengthof(this->decode_params));
    00682         SwitchToErrorRefStack();
    00683         RewindTextRefStack();
    00684
    00685         if (this->detailed_msg == INVALID_STRING_ID) {
    00686           DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, r.top + WD_FRAMERECT_TOP, r.bottom - WD_FRAMERECT_BOTTOM,
    00687               this->summary_msg, TC_FROMSTRING, SA_CENTER);
    00688         } else {
    00689           int extra = (r.bottom - r.top + 1 - this->height_summary - this->height_detailed - WD_PAR_VSEP_WIDE) / 2;
    00690
    00691           /* Note: NewGRF supplied error message often do not start with a colour code, so default to white. */
    00692           int top = r.top + WD_FRAMERECT_TOP;
    00693           int bottom = top + this->height_summary + extra;
    00694           DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, top, bottom, this->summary_msg, TC_WHITE, SA_CENTER);
    00695
    00696           bottom = r.bottom - WD_FRAMERECT_BOTTOM;
    00697           top = bottom - this->height_detailed - extra;
    00698           DrawStringMultiLine(r.left + WD_FRAMETEXT_LEFT, r.right - WD_FRAMETEXT_RIGHT, top, bottom, this->detailed_msg, TC_WHITE, SA_CENTER);
    00699         }
    00700
    00701         SwitchToNormalRefStack(); // Switch back to the normal text ref. stack for NewGRF texts.
    00702         break;
    00703
    00704       default:
    00705         break;
    00706     }
    00707   }
    00708
    00709   virtual void OnMouseLoop()
    00710   {
    00711     /* Disallow closing the window too easily, if timeout is disabled */
    00712     if (_right_button_down && this->duration != 0) delete this;
    00713   }
    00714
    00715   virtual void OnHundredthTick()
    00716   {
    00717     /* Timeout enabled? */
    00718     if (this->duration != 0) {
    00719       this->duration--;
    00720       if (this->duration == 0) delete this;
    00721     }
    00722   }
    00723
    00724   ~ErrmsgWindow()
    00725   {
    00726     SetRedErrorSquare(INVALID_TILE);
    00727   }
    00728
    00729   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
    00730   {
    00731     if (keycode != WKC_SPACE) return ES_NOT_HANDLED;
    00732     delete this;
    00733     return ES_HANDLED;
    00734   }
    00735 };
    00736
    00745 void ShowErrorMessage(StringID summary_msg, StringID detailed_msg, WarningLevel wl, int x, int y)
    00746 {
    00747   if (summary_msg == STR_NULL) summary_msg = STR_EMPTY;
    00748
    00749   if (wl != WL_INFO) {
    00750     /* Print message to console */
    00751     char buf[DRAW_STRING_BUFFER];
    00752     char *b = GetString(buf, summary_msg, lastof(buf));
    00753     if (detailed_msg != INVALID_STRING_ID) {
    00754       b += seprintf(b, lastof(buf), " ");
    00755       GetString(b, detailed_msg, lastof(buf));
    00756     }
    00757     switch (wl) {
    00758       case WL_WARNING: IConsolePrint(CC_WARNING, buf); break;
    00759       default:         IConsoleError(buf); break;
    00760     }
    00761   }
    00762
    00763   bool no_timeout = wl == WL_CRITICAL;
    00764
    00765   if (_settings_client.gui.errmsg_duration == 0 && !no_timeout) return;
    00766
    00767   DeleteWindowById(WC_ERRMSG, 0);
    00768
    00769   Point pt = {x, y};
    00770   new ErrmsgWindow(pt, summary_msg, detailed_msg, no_timeout);
    00771 }
    00772
    00779 void ShowEstimatedCostOrIncome(Money cost, int x, int y)
    00780 {
    00781   StringID msg = STR_MESSAGE_ESTIMATED_COST;
    00782
    00783   if (cost < 0) {
    00784     cost = -cost;
    00785     msg = STR_MESSAGE_ESTIMATED_INCOME;
    00786   }
    00787   SetDParam(0, cost);
    00788   ShowErrorMessage(msg, INVALID_STRING_ID, WL_INFO, x, y);
    00789 }
    00790
    00798 void ShowCostOrIncomeAnimation(int x, int y, int z, Money cost)
    00799 {
    00800   Point pt = RemapCoords(x, y, z);
    00801   StringID msg = STR_INCOME_FLOAT_COST;
    00802
    00803   if (cost < 0) {
    00804     cost = -cost;
    00805     msg = STR_INCOME_FLOAT_INCOME;
    00806   }
    00807   SetDParam(0, cost);
    00808   AddTextEffect(msg, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00809 }
    00810
    00819 void ShowFeederIncomeAnimation(int x, int y, int z, Money transfer, Money income)
    00820 {
    00821   Point pt = RemapCoords(x, y, z);
    00822
    00823   SetDParam(0, transfer);
    00824   if (income == 0) {
    00825     AddTextEffect(STR_FEEDER, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00826   } else {
    00827     StringID msg = STR_FEEDER_COST;
    00828     if (income < 0) {
    00829       income = -income;
    00830       msg = STR_FEEDER_INCOME;
    00831     }
    00832     SetDParam(1, income);
    00833     AddTextEffect(msg, pt.x, pt.y, DAY_TICKS, TE_RISING);
    00834   }
    00835 }
    00836
    00846 TextEffectID ShowFillingPercent(int x, int y, int z, uint8 percent, StringID string)
    00847 {
    00848   Point pt = RemapCoords(x, y, z);
    00849
    00850   assert(string != STR_NULL);
    00851
    00852   SetDParam(0, percent);
    00853   return AddTextEffect(string, pt.x, pt.y, 0, TE_STATIC);
    00854 }
    00855
    00861 void UpdateFillingPercent(TextEffectID te_id, uint8 percent, StringID string)
    00862 {
    00863   assert(string != STR_NULL);
    00864
    00865   SetDParam(0, percent);
    00866   UpdateTextEffect(te_id, string);
    00867 }
    00868
    00873 void HideFillingPercent(TextEffectID *te_id)
    00874 {
    00875   if (*te_id == INVALID_TE_ID) return;
    00876
    00877   RemoveTextEffect(*te_id);
    00878   *te_id = INVALID_TE_ID;
    00879 }
    00880
    00881 static const NWidgetPart _nested_tooltips_widgets[] = {
    00882   NWidget(WWT_PANEL, COLOUR_GREY, 0), SetMinimalSize(200, 32), EndContainer(),
    00883 };
    00884
    00885 static const WindowDesc _tool_tips_desc(
    00886   WDP_MANUAL, 0, 0, // Coordinates and sizes are not used,
    00887   WC_TOOLTIPS, WC_NONE,
    00888   0,
    00889   _nested_tooltips_widgets, lengthof(_nested_tooltips_widgets)
    00890 );
    00891
    00893 struct TooltipsWindow : public Window
    00894 {
    00895   StringID string_id;
    00896   byte paramcount;
    00897   uint64 params[5];
    00898   TooltipCloseCondition close_cond;
    00899
    00900   TooltipsWindow(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip) : Window()
    00901   {
    00902     this->parent = parent;
    00903     this->string_id = str;
    00904     assert_compile(sizeof(this->params[0]) == sizeof(params[0]));
    00905     assert(paramcount <= lengthof(this->params));
    00906     memcpy(this->params, params, sizeof(this->params[0]) * paramcount);
    00907     this->paramcount = paramcount;
    00908     this->close_cond = close_tooltip;
    00909
    00910     this->InitNested(&_tool_tips_desc);
    00911
    00912     this->flags4 &= ~WF_WHITE_BORDER_MASK; // remove white-border from tooltip
    00913   }
    00914
    00915   virtual Point OnInitialPosition(const WindowDesc *desc, int16 sm_width, int16 sm_height, int window_number)
    00916   {
    00917     /* Find the free screen space between the main toolbar at the top, and the statusbar at the bottom.
    00918      * Add a fixed distance 2 so the tooltip floats free from both bars.
    00919      */
    00920     int scr_top = GetMainViewTop() + 2;
    00921     int scr_bot = GetMainViewBottom() - 2;
    00922
    00923     Point pt;
    00924
    00925     /* Correctly position the tooltip position, watch out for window and cursor size
    00926      * Clamp value to below main toolbar and above statusbar. If tooltip would
    00927      * go below window, flip it so it is shown above the cursor */
    00928     pt.y = Clamp(_cursor.pos.y + _cursor.size.y + _cursor.offs.y + 5, scr_top, scr_bot);
    00929     if (pt.y + sm_height > scr_bot) pt.y = min(_cursor.pos.y + _cursor.offs.y - 5, scr_bot) - sm_height;
    00930     pt.x = sm_width >= _screen.width ? 0 : Clamp(_cursor.pos.x - (sm_width >> 1), 0, _screen.width - sm_width);
    00931
    00932     return pt;
    00933   }
    00934
    00935   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    00936   {
    00937     /* There is only one widget. */
    00938     for (uint i = 0; i != this->paramcount; i++) SetDParam(i, this->params[i]);
    00939
    00940     size->width  = min(GetStringBoundingBox(this->string_id).width, 194);
    00941     size->height = GetStringHeight(this->string_id, size->width);
    00942
    00943     /* Increase slightly to have some space around the box. */
    00944     size->width  += 2 + WD_FRAMERECT_LEFT + WD_FRAMERECT_RIGHT;
    00945     size->height += 2 + WD_FRAMERECT_TOP + WD_FRAMERECT_BOTTOM;
    00946   }
    00947
    00948   virtual void DrawWidget(const Rect &r, int widget) const
    00949   {
    00950     /* There is only one widget. */
    00951     GfxFillRect(r.left, r.top, r.right, r.bottom, PC_BLACK);
    00952     GfxFillRect(r.left + 1, r.top + 1, r.right - 1, r.bottom - 1, PC_LIGHT_YELLOW);
    00953
    00954     for (uint arg = 0; arg < this->paramcount; arg++) {
    00955       SetDParam(arg, this->params[arg]);
    00956     }
    00957     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);
    00958   }
    00959
    00960   virtual void OnMouseLoop()
    00961   {
    00962     /* Always close tooltips when the cursor is not in our window. */
    00963     if (!_cursor.in_window) {
    00964       delete this;
    00965       return;
    00966     }
    00967
    00968     /* We can show tooltips while dragging tools. These are shown as long as
    00969      * we are dragging the tool. Normal tooltips work with hover or rmb. */
    00970     switch (this->close_cond) {
    00971       case TCC_RIGHT_CLICK: if (!_right_button_down) delete this; break;
    00972       case TCC_LEFT_CLICK: if (!_left_button_down) delete this; break;
    00973       case TCC_HOVER: if (!_mouse_hovering) delete this; break;
    00974     }
    00975   }
    00976 };
    00977
    00986 void GuiShowTooltips(Window *parent, StringID str, uint paramcount, const uint64 params[], TooltipCloseCondition close_tooltip)
    00987 {
    00988   DeleteWindowById(WC_TOOLTIPS, 0);
    00989
    00990   if (str == STR_NULL) return;
    00991
    00992   new TooltipsWindow(parent, str, paramcount, params, close_tooltip);
    00993 }
    00994
    00995 /* Delete a character at the caret position in a text buf.
    00996  * If backspace is set, delete the character before the caret,
    00997  * else delete the character after it. */
    00998 static void DelChar(Textbuf *tb, bool backspace)
    00999 {
    01000   WChar c;
    01001   char *s = tb->buf + tb->caretpos;
    01002
    01003   if (backspace) s = Utf8PrevChar(s);
    01004
    01005   uint16 len = (uint16)Utf8Decode(&c, s);
    01006   uint width = GetCharacterWidth(FS_NORMAL, c);
    01007
    01008   tb->pixels -= width;
    01009   if (backspace) {
    01010     tb->caretpos   -= len;
    01011     tb->caretxoffs -= width;
    01012   }
    01013
    01014   /* Move the remaining characters over the marker */
    01015   memmove(s, s + len, tb->bytes - (s - tb->buf) - len);
    01016   tb->bytes -= len;
    01017   tb->chars--;
    01018 }
    01019
    01027 bool DeleteTextBufferChar(Textbuf *tb, int delmode)
    01028 {
    01029   if (delmode == WKC_BACKSPACE && tb->caretpos != 0) {
    01030     DelChar(tb, true);
    01031     return true;
    01032   } else if (delmode == WKC_DELETE && tb->caretpos < tb->bytes - 1) {
    01033     DelChar(tb, false);
    01034     return true;
    01035   }
    01036
    01037   return false;
    01038 }
    01039
    01044 void DeleteTextBufferAll(Textbuf *tb)
    01045 {
    01046   memset(tb->buf, 0, tb->max_bytes);
    01047   tb->bytes = tb->chars = 1;
    01048   tb->pixels = tb->caretpos = tb->caretxoffs = 0;
    01049 }
    01050
    01059 bool InsertTextBufferChar(Textbuf *tb, WChar key)
    01060 {
    01061   const byte charwidth = GetCharacterWidth(FS_NORMAL, key);
    01062   uint16 len = (uint16)Utf8CharLen(key);
    01063   if (tb->bytes + len <= tb->max_bytes && tb->chars + 1 <= tb->max_chars) {
    01064     memmove(tb->buf + tb->caretpos + len, tb->buf + tb->caretpos, tb->bytes - tb->caretpos);
    01065     Utf8Encode(tb->buf + tb->caretpos, key);
    01066     tb->chars++;
    01067     tb->bytes  += len;
    01068     tb->pixels += charwidth;
    01069
    01070     tb->caretpos   += len;
    01071     tb->caretxoffs += charwidth;
    01072     return true;
    01073   }
    01074   return false;
    01075 }
    01076
    01084 bool InsertTextBufferClipboard(Textbuf *tb)
    01085 {
    01086   char utf8_buf[512];
    01087
    01088   if (!GetClipboardContents(utf8_buf, lengthof(utf8_buf))) return false;
    01089
    01090   uint16 pixels = 0, bytes = 0, chars = 0;
    01091   WChar c;
    01092   for (const char *ptr = utf8_buf; (c = Utf8Consume(&ptr)) != '\0';) {
    01093     if (!IsPrintable(c)) break;
    01094
    01095     byte len = Utf8CharLen(c);
    01096     if (tb->bytes + bytes + len > tb->max_bytes) break;
    01097     if (tb->chars + chars + 1   > tb->max_chars) break;
    01098
    01099     byte char_pixels = GetCharacterWidth(FS_NORMAL, c);
    01100
    01101     pixels += char_pixels;
    01102     bytes += len;
    01103     chars++;
    01104   }
    01105
    01106   if (bytes == 0) return false;
    01107
    01108   memmove(tb->buf + tb->caretpos + bytes, tb->buf + tb->caretpos, tb->bytes - tb->caretpos);
    01109   memcpy(tb->buf + tb->caretpos, utf8_buf, bytes);
    01110   tb->pixels += pixels;
    01111   tb->caretxoffs += pixels;
    01112
    01113   tb->bytes += bytes;
    01114   tb->chars += chars;
    01115   tb->caretpos += bytes;
    01116   assert(tb->bytes <= tb->max_bytes);
    01117   assert(tb->chars <= tb->max_chars);
    01118   tb->buf[tb->bytes - 1] = '\0'; // terminating zero
    01119
    01120   return true;
    01121 }
    01122
    01130 bool MoveTextBufferPos(Textbuf *tb, int navmode)
    01131 {
    01132   switch (navmode) {
    01133     case WKC_LEFT:
    01134       if (tb->caretpos != 0) {
    01135         WChar c;
    01136         const char *s = Utf8PrevChar(tb->buf + tb->caretpos);
    01137         Utf8Decode(&c, s);
    01138         tb->caretpos    = s - tb->buf; // -= (tb->buf + tb->caretpos - s)
    01139         tb->caretxoffs -= GetCharacterWidth(FS_NORMAL, c);
    01140
    01141         return true;
    01142       }
    01143       break;
    01144
    01145     case WKC_RIGHT:
    01146       if (tb->caretpos < tb->bytes - 1) {
    01147         WChar c;
    01148
    01149         tb->caretpos   += (uint16)Utf8Decode(&c, tb->buf + tb->caretpos);
    01150         tb->caretxoffs += GetCharacterWidth(FS_NORMAL, c);
    01151
    01152         return true;
    01153       }
    01154       break;
    01155
    01156     case WKC_HOME:
    01157       tb->caretpos = 0;
    01158       tb->caretxoffs = 0;
    01159       return true;
    01160
    01161     case WKC_END:
    01162       tb->caretpos = tb->bytes - 1;
    01163       tb->caretxoffs = tb->pixels;
    01164       return true;
    01165
    01166     default:
    01167       break;
    01168   }
    01169
    01170   return false;
    01171 }
    01172
    01180 void InitializeTextBuffer(Textbuf *tb, char *buf, uint16 max_bytes)
    01181 {
    01182   InitializeTextBuffer(tb, buf, max_bytes, max_bytes);
    01183 }
    01184
    01193 void InitializeTextBuffer(Textbuf *tb, char *buf, uint16 max_bytes, uint16 max_chars)
    01194 {
    01195   assert(max_bytes != 0);
    01196   assert(max_chars != 0);
    01197
    01198   tb->buf        = buf;
    01199   tb->max_bytes  = max_bytes;
    01200   tb->max_chars  = max_chars;
    01201   tb->caret      = true;
    01202   UpdateTextBufferSize(tb);
    01203 }
    01204
    01211 void UpdateTextBufferSize(Textbuf *tb)
    01212 {
    01213   const char *buf = tb->buf;
    01214
    01215   tb->pixels = 0;
    01216   tb->chars = tb->bytes = 1; // terminating zero
    01217
    01218   WChar c;
    01219   while ((c = Utf8Consume(&buf)) != '\0') {
    01220     tb->pixels += GetCharacterWidth(FS_NORMAL, c);
    01221     tb->bytes += Utf8CharLen(c);
    01222     tb->chars++;
    01223   }
    01224
    01225   assert(tb->bytes <= tb->max_bytes);
    01226   assert(tb->chars <= tb->max_chars);
    01227
    01228   tb->caretpos = tb->bytes - 1;
    01229   tb->caretxoffs = tb->pixels;
    01230 }
    01231
    01237 bool HandleCaret(Textbuf *tb)
    01238 {
    01239   /* caret changed? */
    01240   bool b = !!(_caret_timer & 0x20);
    01241
    01242   if (b != tb->caret) {
    01243     tb->caret = b;
    01244     return true;
    01245   }
    01246   return false;
    01247 }
    01248
    01249 bool QueryString::HasEditBoxFocus(const Window *w, int wid) const
    01250 {
    01251   if (w->IsWidgetGloballyFocused(wid)) return true;
    01252   if (w->window_class != WC_OSK || _focused_window != w->parent) return false;
    01253   return w->parent->nested_focus != NULL && w->parent->nested_focus->type == WWT_EDITBOX;
    01254 }
    01255
    01256 HandleEditBoxResult QueryString::HandleEditBoxKey(Window *w, int wid, uint16 key, uint16 keycode, EventState &state)
    01257 {
    01258   if (!QueryString::HasEditBoxFocus(w, wid)) return HEBR_NOT_FOCUSED;
    01259
    01260   state = ES_HANDLED;
    01261
    01262   switch (keycode) {
    01263     case WKC_ESC: return HEBR_CANCEL;
    01264
    01265     case WKC_RETURN: case WKC_NUM_ENTER: return HEBR_CONFIRM;
    01266
    01267 #ifdef WITH_COCOA
    01268     case (WKC_META | 'V'):
    01269 #endif
    01270     case (WKC_CTRL | 'V'):
    01271       if (InsertTextBufferClipboard(&this->text)) w->SetWidgetDirty(wid);
    01272       break;
    01273
    01274 #ifdef WITH_COCOA
    01275     case (WKC_META | 'U'):
    01276 #endif
    01277     case (WKC_CTRL | 'U'):
    01278       DeleteTextBufferAll(&this->text);
    01279       w->SetWidgetDirty(wid);
    01280       break;
    01281
    01282     case WKC_BACKSPACE: case WKC_DELETE:
    01283       if (DeleteTextBufferChar(&this->text, keycode)) w->SetWidgetDirty(wid);
    01284       break;
    01285
    01286     case WKC_LEFT: case WKC_RIGHT: case WKC_END: case WKC_HOME:
    01287       if (MoveTextBufferPos(&this->text, keycode)) w->SetWidgetDirty(wid);
    01288       break;
    01289
    01290     default:
    01291       if (IsValidChar(key, this->afilter)) {
    01292         if (InsertTextBufferChar(&this->text, key)) w->SetWidgetDirty(wid);
    01293       } else {
    01294         state = ES_NOT_HANDLED;
    01295       }
    01296   }
    01297
    01298   return HEBR_EDITING;
    01299 }
    01300
    01301 void QueryString::HandleEditBox(Window *w, int wid)
    01302 {
    01303   if (HasEditBoxFocus(w, wid) && HandleCaret(&this->text)) {
    01304     w->SetWidgetDirty(wid);
    01305     /* When we're not the OSK, notify 'our' OSK to redraw the widget,
    01306      * so the caret changes appropriately. */
    01307     if (w->window_class != WC_OSK) {
    01308       Window *w_osk = FindWindowById(WC_OSK, 0);
    01309       if (w_osk != NULL && w_osk->parent == w) w_osk->InvalidateData();
    01310     }
    01311   }
    01312 }
    01313
    01314 void QueryString::DrawEditBox(Window *w, int wid)
    01315 {
    01316   const NWidgetBase *wi = w->GetWidget<NWidgetBase>(wid);
    01317
    01318   assert((wi->type & WWT_MASK) == WWT_EDITBOX);
    01319   int left   = wi->pos_x;
    01320   int right  = wi->pos_x + wi->current_x - 1;
    01321   int top    = wi->pos_y;
    01322   int bottom = wi->pos_y + wi->current_y - 1;
    01323
    01324   GfxFillRect(left + 1, top + 1, right - 1, bottom - 1, PC_BLACK);
    01325
    01326   /* Limit the drawing of the string inside the widget boundaries */
    01327   DrawPixelInfo dpi;
    01328   if (!FillDrawPixelInfo(&dpi, left + WD_FRAMERECT_LEFT, top + WD_FRAMERECT_TOP, right - left - WD_FRAMERECT_RIGHT, bottom - top - WD_FRAMERECT_BOTTOM)) return;
    01329
    01330   DrawPixelInfo *old_dpi = _cur_dpi;
    01331   _cur_dpi = &dpi;
    01332
    01333   /* We will take the current widget length as maximum width, with a small
    01334    * space reserved at the end for the caret to show */
    01335   const Textbuf *tb = &this->text;
    01336   int delta = min(0, (right - left) - tb->pixels - 10);
    01337
    01338   if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
    01339
    01340   DrawString(delta, tb->pixels, 0, tb->buf, TC_YELLOW);
    01341   if (HasEditBoxFocus(w, wid) && tb->caret) {
    01342     int caret_width = GetStringBoundingBox("_").width;
    01343     DrawString(tb->caretxoffs + delta, tb->caretxoffs + delta + caret_width, 0, "_", TC_WHITE);
    01344   }
    01345
    01346   _cur_dpi = old_dpi;
    01347 }
    01348
    01349 HandleEditBoxResult QueryStringBaseWindow::HandleEditBoxKey(int wid, uint16 key, uint16 keycode, EventState &state)
    01350 {
    01351   return this->QueryString::HandleEditBoxKey(this, wid, key, keycode, state);
    01352 }
    01353
    01354 void QueryStringBaseWindow::HandleEditBox(int wid)
    01355 {
    01356   this->QueryString::HandleEditBox(this, wid);
    01357 }
    01358
    01359 void QueryStringBaseWindow::DrawEditBox(int wid)
    01360 {
    01361   this->QueryString::DrawEditBox(this, wid);
    01362 }
    01363
    01364 void QueryStringBaseWindow::OnOpenOSKWindow(int wid)
    01365 {
    01366   ShowOnScreenKeyboard(this, wid, 0, 0);
    01367 }
    01368
    01370 enum QueryStringWidgets {
    01371   QUERY_STR_WIDGET_CAPTION,
    01372   QUERY_STR_WIDGET_TEXT,
    01373   QUERY_STR_WIDGET_DEFAULT,
    01374   QUERY_STR_WIDGET_CANCEL,
    01375   QUERY_STR_WIDGET_OK
    01376 };
    01377
    01379 struct QueryStringWindow : public QueryStringBaseWindow
    01380 {
    01381   QueryStringFlags flags;
    01382
    01383   QueryStringWindow(StringID str, StringID caption, uint max_bytes, uint max_chars, const WindowDesc *desc, Window *parent, CharSetFilter afilter, QueryStringFlags flags) :
    01384       QueryStringBaseWindow(max_bytes, max_chars)
    01385   {
    01386     GetString(this->edit_str_buf, str, &this->edit_str_buf[max_bytes - 1]);
    01387     str_validate(this->edit_str_buf, &this->edit_str_buf[max_bytes - 1], false, true);
    01388
    01389     /* Make sure the name isn't too long for the text buffer in the number of
    01390      * characters (not bytes). max_chars also counts the '\0' characters. */
    01391     while (Utf8StringLength(this->edit_str_buf) + 1 > max_chars) {
    01392       *Utf8PrevChar(this->edit_str_buf + strlen(this->edit_str_buf)) = '\0';
    01393     }
    01394
    01395     if ((flags & QSF_ACCEPT_UNCHANGED) == 0) this->orig = strdup(this->edit_str_buf);
    01396
    01397     this->caption = caption;
    01398     this->afilter = afilter;
    01399     this->flags = flags;
    01400     InitializeTextBuffer(&this->text, this->edit_str_buf, max_bytes, max_chars);
    01401
    01402     this->InitNested(desc);
    01403
    01404     this->parent = parent;
    01405
    01406     this->SetFocusedWidget(QUERY_STR_WIDGET_TEXT);
    01407     this->LowerWidget(QUERY_STR_WIDGET_TEXT);
    01408   }
    01409
    01410   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01411   {
    01412     if (widget == QUERY_STR_WIDGET_DEFAULT && (this->flags & QSF_ENABLE_DEFAULT) == 0) {
    01413       /* We don't want this widget to show! */
    01414       fill->width = 0;
    01415       resize->width = 0;
    01416       size->width = 0;
    01417     }
    01418   }
    01419
    01420   virtual void OnPaint()
    01421   {
    01422     this->DrawWidgets();
    01423
    01424     this->DrawEditBox(QUERY_STR_WIDGET_TEXT);
    01425   }
    01426
    01427   virtual void SetStringParameters(int widget) const
    01428   {
    01429     if (widget == QUERY_STR_WIDGET_CAPTION) SetDParam(0, this->caption);
    01430   }
    01431
    01432   void OnOk()
    01433   {
    01434     if (this->orig == NULL || strcmp(this->text.buf, this->orig) != 0) {
    01435       /* If the parent is NULL, the editbox is handled by general function
    01436        * HandleOnEditText */
    01437       if (this->parent != NULL) {
    01438         this->parent->OnQueryTextFinished(this->text.buf);
    01439       } else {
    01440         HandleOnEditText(this->text.buf);
    01441       }
    01442       this->handled = true;
    01443     }
    01444   }
    01445
    01446   virtual void OnClick(Point pt, int widget, int click_count)
    01447   {
    01448     switch (widget) {
    01449       case QUERY_STR_WIDGET_DEFAULT:
    01450         this->text.buf[0] = '\0';
    01451         /* FALL THROUGH */
    01452       case QUERY_STR_WIDGET_OK:
    01453         this->OnOk();
    01454         /* FALL THROUGH */
    01455       case QUERY_STR_WIDGET_CANCEL:
    01456         delete this;
    01457         break;
    01458     }
    01459   }
    01460
    01461   virtual void OnMouseLoop()
    01462   {
    01463     this->HandleEditBox(QUERY_STR_WIDGET_TEXT);
    01464   }
    01465
    01466   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
    01467   {
    01468     EventState state = ES_NOT_HANDLED;
    01469     switch (this->HandleEditBoxKey(QUERY_STR_WIDGET_TEXT, key, keycode, state)) {
    01470       default: NOT_REACHED();
    01471       case HEBR_EDITING: {
    01472         Window *osk = FindWindowById(WC_OSK, 0);
    01473         if (osk != NULL && osk->parent == this) osk->InvalidateData();
    01474         break;
    01475       }
    01476       case HEBR_CONFIRM: this->OnOk();
    01477         /* FALL THROUGH */
    01478       case HEBR_CANCEL: delete this; break; // close window, abandon changes
    01479       case HEBR_NOT_FOCUSED: break;
    01480     }
    01481     return state;
    01482   }
    01483
    01484   virtual void OnOpenOSKWindow(int wid)
    01485   {
    01486     ShowOnScreenKeyboard(this, wid, QUERY_STR_WIDGET_CANCEL, QUERY_STR_WIDGET_OK);
    01487   }
    01488
    01489   ~QueryStringWindow()
    01490   {
    01491     if (!this->handled && this->parent != NULL) {
    01492       Window *parent = this->parent;
    01493       this->parent = NULL; // so parent doesn't try to delete us again
    01494       parent->OnQueryTextFinished(NULL);
    01495     }
    01496   }
    01497 };
    01498
    01499 static const NWidgetPart _nested_query_string_widgets[] = {
    01500   NWidget(NWID_HORIZONTAL),
    01501     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    01502     NWidget(WWT_CAPTION, COLOUR_GREY, QUERY_STR_WIDGET_CAPTION), SetDataTip(STR_WHITE_STRING, STR_NULL),
    01503   EndContainer(),
    01504   NWidget(WWT_PANEL, COLOUR_GREY),
    01505     NWidget(WWT_EDITBOX, COLOUR_GREY, QUERY_STR_WIDGET_TEXT), SetMinimalSize(256, 12), SetFill(1, 1), SetPadding(2, 2, 2, 2),
    01506   EndContainer(),
    01507   NWidget(NWID_HORIZONTAL, NC_EQUALSIZE),
    01508     NWidget(WWT_TEXTBTN, COLOUR_GREY, QUERY_STR_WIDGET_DEFAULT), SetMinimalSize(87, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_DEFAULT, STR_NULL),
    01509     NWidget(WWT_TEXTBTN, COLOUR_GREY, QUERY_STR_WIDGET_CANCEL), SetMinimalSize(86, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_CANCEL, STR_NULL),
    01510     NWidget(WWT_TEXTBTN, COLOUR_GREY, QUERY_STR_WIDGET_OK), SetMinimalSize(87, 12), SetFill(1, 1), SetDataTip(STR_BUTTON_OK, STR_NULL),
    01511   EndContainer(),
    01512 };
    01513
    01514 static const WindowDesc _query_string_desc(
    01515   WDP_AUTO, 0, 0,
    01516   WC_QUERY_STRING, WC_NONE,
    01517   0,
    01518   _nested_query_string_widgets, lengthof(_nested_query_string_widgets)
    01519 );
    01520
    01531 void ShowQueryString(StringID str, StringID caption, uint maxsize, Window *parent, CharSetFilter afilter, QueryStringFlags flags)
    01532 {
    01533   DeleteWindowById(WC_QUERY_STRING, 0);
    01534   new QueryStringWindow(str, caption, ((flags & QSF_LEN_IN_CHARS) ? MAX_CHAR_LENGTH : 1) * maxsize, maxsize, &_query_string_desc, parent, afilter, flags);
    01535 }
    01536
    01537
    01538 enum QueryWidgets {
    01539   QUERY_WIDGET_CAPTION,
    01540   QUERY_WIDGET_TEXT,
    01541   QUERY_WIDGET_NO,
    01542   QUERY_WIDGET_YES
    01543 };
    01544
    01548 struct QueryWindow : public Window {
    01549   QueryCallbackProc *proc;
    01550   uint64 params[10];
    01551   StringID message;
    01552   StringID caption;
    01553
    01554   QueryWindow(const WindowDesc *desc, StringID caption, StringID message, Window *parent, QueryCallbackProc *callback) : Window()
    01555   {
    01556     /* Create a backup of the variadic arguments to strings because it will be
    01557      * overridden pretty often. We will copy these back for drawing */
    01558     CopyOutDParam(this->params, 0, lengthof(this->params));
    01559     this->caption = caption;
    01560     this->message = message;
    01561     this->proc    = callback;
    01562
    01563     this->InitNested(desc);
    01564
    01565     this->parent = parent;
    01566     this->left = parent->left + (parent->width / 2) - (this->width / 2);
    01567     this->top = parent->top + (parent->height / 2) - (this->height / 2);
    01568   }
    01569
    01570   ~QueryWindow()
    01571   {
    01572     if (this->proc != NULL) this->proc(this->parent, false);
    01573   }
    01574
    01575   virtual void SetStringParameters(int widget) const
    01576   {
    01577     switch (widget) {
    01578       case QUERY_WIDGET_CAPTION:
    01579         CopyInDParam(1, this->params, lengthof(this->params));
    01580         SetDParam(0, this->caption);
    01581         break;
    01582
    01583       case QUERY_WIDGET_TEXT:
    01584         CopyInDParam(0, this->params, lengthof(this->params));
    01585         break;
    01586     }
    01587   }
    01588
    01589   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01590   {
    01591     if (widget != QUERY_WIDGET_TEXT) return;
    01592
    01593     Dimension d = GetStringMultiLineBoundingBox(this->message, *size);
    01594     d.width += padding.width;
    01595     d.height += padding.height;
    01596     *size = d;
    01597   }
    01598
    01599   virtual void DrawWidget(const Rect &r, int widget) const
    01600   {
    01601     if (widget != QUERY_WIDGET_TEXT) return;
    01602
    01603     DrawStringMultiLine(r.left, r.right, r.top, r.bottom, this->message, TC_FROMSTRING, SA_CENTER);
    01604   }
    01605
    01606   virtual void OnClick(Point pt, int widget, int click_count)
    01607   {
    01608     switch (widget) {
    01609       case QUERY_WIDGET_YES: {
    01610         /* in the Generate New World window, clicking 'Yes' causes
    01611          * DeleteNonVitalWindows() to be called - we shouldn't be in a window then */
    01612         QueryCallbackProc *proc = this->proc;
    01613         Window *parent = this->parent;
    01614         /* Prevent the destructor calling the callback function */
    01615         this->proc = NULL;
    01616         delete this;
    01617         if (proc != NULL) {
    01618           proc(parent, true);
    01619           proc = NULL;
    01620         }
    01621         break;
    01622       }
    01623       case QUERY_WIDGET_NO:
    01624         delete this;
    01625         break;
    01626     }
    01627   }
    01628
    01629   virtual EventState OnKeyPress(uint16 key, uint16 keycode)
    01630   {
    01631     /* ESC closes the window, Enter confirms the action */
    01632     switch (keycode) {
    01633       case WKC_RETURN:
    01634       case WKC_NUM_ENTER:
    01635         if (this->proc != NULL) {
    01636           this->proc(this->parent, true);
    01637           this->proc = NULL;
    01638         }
    01639         /* FALL THROUGH */
    01640       case WKC_ESC:
    01641         delete this;
    01642         return ES_HANDLED;
    01643     }
    01644     return ES_NOT_HANDLED;
    01645   }
    01646 };
    01647
    01648 static const NWidgetPart _nested_query_widgets[] = {
    01649   NWidget(NWID_HORIZONTAL),
    01650     NWidget(WWT_CLOSEBOX, COLOUR_RED),
    01651     NWidget(WWT_CAPTION, COLOUR_RED, QUERY_WIDGET_CAPTION), SetDataTip(STR_JUST_STRING, STR_NULL),
    01652   EndContainer(),
    01653   NWidget(WWT_PANEL, COLOUR_RED), SetPIP(8, 15, 8),
    01654     NWidget(WWT_TEXT, COLOUR_RED, QUERY_WIDGET_TEXT), SetMinimalSize(200, 12),
    01655     NWidget(NWID_HORIZONTAL, NC_EQUALSIZE), SetPIP(20, 29, 20),
    01656       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, QUERY_WIDGET_NO), SetMinimalSize(71, 12), SetDataTip(STR_QUIT_NO, STR_NULL),
    01657       NWidget(WWT_PUSHTXTBTN, COLOUR_YELLOW, QUERY_WIDGET_YES), SetMinimalSize(71, 12), SetDataTip(STR_QUIT_YES, STR_NULL),
    01658     EndContainer(),
    01659   EndContainer(),
    01660 };
    01661
    01662 static const WindowDesc _query_desc(
    01663   WDP_CENTER, 0, 0,
    01664   WC_CONFIRM_POPUP_QUERY, WC_NONE,
    01665   WDF_UNCLICK_BUTTONS | WDF_MODAL,
    01666   _nested_query_widgets, lengthof(_nested_query_widgets)
    01667 );
    01668
    01678 void ShowQuery(StringID caption, StringID message, Window *parent, QueryCallbackProc *callback)
    01679 {
    01680   if (parent == NULL) parent = FindWindowById(WC_MAIN_WINDOW, 0);
    01681
    01682   const Window *w;
    01683   FOR_ALL_WINDOWS_FROM_BACK(w) {
    01684     if (w->window_class != WC_CONFIRM_POPUP_QUERY) continue;
    01685
    01686     const QueryWindow *qw = (const QueryWindow *)w;
    01687     if (qw->parent != parent || qw->proc != callback) continue;
    01688
    01689     delete qw;
    01690     break;
    01691   }
    01692
    01693   new QueryWindow(&_query_desc, caption, message, parent, callback);
    01694 }
    01695
    01697 enum SystemTimeWindowWidgets {
    01698   TW_TIME_TEXT,
    01699 };
    01700
    01701 static const NWidgetPart _nested_time_widgets[] = {
    01702   NWidget(NWID_HORIZONTAL),
    01703     NWidget(WWT_CLOSEBOX, COLOUR_GREY),
    01704     NWidget(WWT_CAPTION,  COLOUR_GREY),  SetDataTip(STR_SYSTEM_TIME, STR_TOOLTIP_WINDOW_TITLE_DRAG_THIS),
    01705     NWidget(WWT_SHADEBOX, COLOUR_GREY),
    01706     NWidget(WWT_STICKYBOX, COLOUR_GREY),
    01707   EndContainer(),
    01708   NWidget(WWT_PANEL, COLOUR_CREAM),
    01709   NWidget(WWT_FRAME, COLOUR_CREAM), SetPadding(0, 5, 1, 5),
    01710       NWidget(WWT_EMPTY, INVALID_COLOUR, TW_TIME_TEXT),
    01711   EndContainer(),
    01712 };
    01713
    01714 static const WindowDesc _time_desc(
    01715   WDP_AUTO, 0, 0,
    01716   WC_SYSTEM_TIME, WC_NONE,
    01717   0,
    01718   _nested_time_widgets, lengthof(_nested_time_widgets)
    01719 );
    01720
    01721 struct TimeWindow : public Window {
    01722   time_t last_time;
    01723
    01724   TimeWindow() : Window(), last_time(0)
    01725   {
    01726     this->InitNested(&_time_desc);
    01727     this->flags4 |= WF_STICKY;
    01728   }
    01729
    01730   virtual void UpdateWidgetSize(int widget, Dimension *size, const Dimension &padding, Dimension *fill, Dimension *resize)
    01731   {
    01732     Dimension d = GetStringBoundingBox("2009-09-09 20:00:00");
    01733
    01734     *size = maxdim(*size, d);
    01735   }
    01736
    01737   virtual void OnPaint()
    01738   {
    01739     this->DrawWidgets();
    01740   }
    01741
    01742   virtual void DrawWidget(const Rect &r, int widget) const
    01743   {
    01744     static char buf[1024];
    01745     time_t now = time(NULL);
    01746
    01747     strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", localtime(&now));
    01748
    01749     DrawString(r.left + 2, r.right - 2, r.top + 4, buf, TC_WHITE, SA_LEFT | SA_FORCE);
    01750   }
    01751
    01752   virtual void OnTick()
    01753   {
    01754     time_t now = time(NULL);
    01755     if (now != this->last_time)
    01756       this->SetDirty();
    01757   }
    01758 };
    01759
    01760 void ShowSystemTimeWindow()
    01761 {
    01762   DeleteWindowById(WC_SYSTEM_TIME, 0);
    01763   new TimeWindow();
    01764 }