src/Instrumentation/KLN89/kln89_page_apt.cxx

   1 // kln89_page_*.[ch]xx - this file is one of the "pages" that
   2 //                       are used in the KLN89 GPS unit simulation.
   3 //
   4 // Written by David Luff, started 2005.
   5 //
   6 // Copyright (C) 2005 - David C Luff - daveluff AT ntlworld.com
   7 //
   8 // This program is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU General Public License as
  10 // published by the Free Software Foundation; either version 2 of the
  11 // License, or (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful, but
  14 // WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the Free Software
  20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  21 //
  22 // $Id$
  23
  24 #ifdef HAVE_CONFIG_H
  25 #  include "config.h"
  26 #endif
  27
  28 #include "kln89_page_apt.hxx"
  29
  30 #include <cassert>
  31
  32 #include <ATCDCL/commlist.hxx>
  33 #include <Main/globals.hxx>
  34 #include <Airports/runways.hxx>
  35 #include <Airports/simple.hxx>
  36
  37 // This function is copied from Airports/runways.cxx
  38 // TODO - Make the original properly available and remove this instance!!!!
  39 // Return reverse rwy number
  40 // eg 01 -> 19
  41 // 03L -> 21R
  42 static string GetReverseRunwayNo(string rwyno) {
  43     // cout << "Original rwyno = " << rwyNo << '\n';
  44
  45     // standardize input number
  46     string tmp = rwyno.substr(1, 1);
  47     if (( tmp == "L" || tmp == "R" || tmp == "C" ) || (rwyno.size() == 1)) {
  48                 tmp = rwyno;
  49                 rwyno = "0" + tmp;
  50                 SG_LOG( SG_GENERAL, SG_INFO,
  51                         "Standardising rwy number from " << tmp << " to " << rwyno );
  52     }
  53
  54     char buf[4];
  55     int rn = atoi(rwyno.substr(0,2).c_str());
  56     rn += 18;
  57     while(rn > 36) {
  58                 rn -= 36;
  59     }
  60     sprintf(buf, "%02i", rn);
  61     if(rwyno.size() == 3) {
  62                 if(rwyno.substr(2,1) == "L") {
  63                         buf[2] = 'R';
  64                         buf[3] = '\0';
  65                 } else if (rwyno.substr(2,1) == "R") {
  66                         buf[2] = 'L';
  67                         buf[3] = '\0';
  68                 } else if (rwyno.substr(2,1) == "C") {
  69                         buf[2] = 'C';
  70                         buf[3] = '\0';
  71                 } else if (rwyno.substr(2,1) == "T") {
  72                         buf[2] = 'T';
  73                         buf[3] = '\0';
  74                 } else {
  75                         SG_LOG(SG_GENERAL, SG_ALERT, "Unknown runway code "
  76                         << rwyno << " passed to GetReverseRunwayNo(...)");
  77                 }
  78     }
  79     return(buf);
  80 }
  81
  82 KLN89AptPage::KLN89AptPage(KLN89* parent)
  83 : KLN89Page(parent) {
  84         _nSubPages = 8;
  85         _subPage = 0;
  86         _name = "APT";
  87         _apt_id = "KHWD";
  88         // Make sure that _last_apt_id doesn't match at startup to force airport data to be fetched on first update.
  89         _last_apt_id = "XXXX";
  90         _nRwyPages = 1;
  91         _curRwyPage = 0;
  92         _nFreqPages = 1;
  93         _curFreqPage = 0;
  94         ap = NULL;
  95         _iapStart = 0;
  96         _iafStart = 0;
  97         _fStart = 0;
  98         _iaps.clear();
  99         _iafDialog = false;
 100         _addDialog = false;
 101         _replaceDialog = false;
 102         _curIap = 0;
 103         _curIaf = 0;
 104 }
 105
 106 KLN89AptPage::~KLN89AptPage() {
 107 }
 108
 109 void KLN89AptPage::Update(double dt) {
 110         bool actPage = (_kln89->_activePage->GetName() == "ACT" ? true : false);
 111         bool multi;  // Not set by FindFirst...
 112         bool exact = false;
 113         if(_apt_id.size() == 4) exact = true;
 114         // TODO - move this search out to where the button is pressed, and cache the result!
 115         if(_apt_id != _last_apt_id || ap == NULL) ap = _kln89->FindFirstAptById(_apt_id, multi, exact);
 116         //if(np == NULL) cout << "NULL... ";
 117         //if(b == false) cout << "false...\n";
 118         /*
 119         if(np && b) {
 120                 cout << "VOR FOUND!\n";
 121         } else {
 122                 cout << ":-(\n";
 123         }
 124         */
 125
 126         if(ap) {
 127                 //cout << "Valid airport found! id = " << ap->getId() << ", elev = " << ap->getElevation() << '\n';
 128                 if(_apt_id != _last_apt_id) {
 129                         UpdateAirport(ap->getId());
 130                         _last_apt_id = _apt_id;
 131                         _curFreqPage = 0;
 132                         _curRwyPage = 0;
 133                 }
 134                 _apt_id = ap->getId();
 135                 if(_kln89->GetActiveWaypoint()) {
 136                         if(_apt_id == _kln89->GetActiveWaypoint()->id) {
 137                                 if(!(_kln89->_waypointAlert && _kln89->_blink)) {
 138                                         // Active waypoint arrow
 139                                         _kln89->DrawSpecialChar(4, 2, 0, 3);
 140                                 }
 141                         }
 142                 }
 143                 if(_kln89->_mode != KLN89_MODE_CRSR) {
 144                         if(!(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {  // Don't draw the airport name when the IAP dialogs are active
 145                                 if(!_entInvert) {
 146                                         if(!actPage) {
 147                                                 _kln89->DrawText(ap->getId(), 2, 1, 3);
 148                                         } else {
 149                                                 // If it's the ACT page, The ID is shifted slightly right to make space for the waypoint index.
 150                                                 _kln89->DrawText(ap->getId(), 2, 4, 3);
 151                                                 char buf[3];
 152                                                 int n = snprintf(buf, 3, "%i", _kln89->GetActiveWaypointIndex() + 1);
 153                                                 _kln89->DrawText((string)buf, 2, 3 - n, 3);
 154                                         }
 155                                 } else {
 156                                         if(!_kln89->_blink) {
 157                                                 _kln89->DrawText(ap->getId(), 2, 1, 3, false, 99);
 158                                                 _kln89->DrawEnt();
 159                                         }
 160                                 }
 161                         }
 162                 }
 163                 if(_subPage == 0) {
 164                         // Name
 165                         _kln89->DrawText(ap->getName(), 2, 0, 2);
 166                         // Elevation
 167                         _kln89->DrawText(_kln89->_altUnits == GPS_ALT_UNITS_FT ? "ft" : "m", 2, 14, 3);
 168                         char buf[6];
 169                         int n = snprintf(buf, 5, "%i", (_kln89->_altUnits == GPS_ALT_UNITS_FT ? (int)(ap->getElevation()) : (int)((double)ap->getElevation() * SG_FEET_TO_METER)));
 170                         _kln89->DrawText((string)buf, 2, 14 - n, 3);
 171                         // Town
 172                         airport_id_str_map_iterator itr = _kln89->_airportTowns.find(_apt_id);
 173                         if(itr != _kln89->_airportTowns.end()) {
 174                                 _kln89->DrawText(itr->second, 2, 0, 1);
 175                         }
 176                         // State / Province / Country
 177                         itr = _kln89->_airportStates.find(_apt_id);
 178                         if(itr != _kln89->_airportStates.end()) {
 179                                 _kln89->DrawText(itr->second, 2, 0, 0);
 180                         }
 181                 } else if(_subPage == 1) {
 182                         _kln89->DrawLatitude(ap->getLatitude(), 2, 3, 2);
 183                         _kln89->DrawLongitude(ap->getLongitude(), 2, 3, 1);
 184                         _kln89->DrawDirDistField(ap->getLatitude() * SG_DEGREES_TO_RADIANS, ap->getLongitude() * SG_DEGREES_TO_RADIANS,
 185                                                  2, 0, 0, _to_flag, (_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == 5 ? true : false));
 186                 } else if(_subPage == 2) {
 187                         // Try and calculate a realistic difference from UTC based on longitude
 188                         // Since 0 longitude is the middle of UTC, the boundaries will be at 7.5, 22.5, 37.5 etc.
 189                         int hrDiff = ((int)((fabs(ap->getLongitude())) + 7.5)) / 15;
 190                         _kln89->DrawText("UTC", 2, 0, 2);
 191                         if(hrDiff != 0) {
 192                                 _kln89->DrawText(ap->getLongitude() >= 0.0 ? "+" : "-", 2, 3, 2);
 193                                 char buf[3];
 194                                 snprintf(buf, 3, "%02i", hrDiff);
 195                                 _kln89->DrawText((string)buf, 2, 4, 2);
 196                                 _kln89->DrawText("(   DT)", 2, 6, 2);
 197                                 if(ap->getLongitude() >= 0.0) {
 198                                         hrDiff++;
 199                                 } else {
 200                                         hrDiff--;
 201                                 }
 202                                 _kln89->DrawText(ap->getLongitude() >= 0.0 ? "+" : "-", 2, 7, 2);
 203                                 snprintf(buf, 3, "%02i", hrDiff);
 204                                 _kln89->DrawText((string)buf, 2, 8, 2);
 205                         }
 206                         // I guess we can make a heuristic guess as to fuel availability from the runway sizes
 207                         // For now assume that airports with asphalt or concrete runways will have at least 100L,
 208                         // and that runways over 4000ft will have JET.
 209                         if(_aptRwys[0]->surface() <= 2) {
 210                                 if(_aptRwys[0]->lengthFt() >= 4000) {
 211                                         _kln89->DrawText("JET 100L", 2, 0, 1);
 212                                 } else {
 213                                         _kln89->DrawText("100L", 2, 0, 1);
 214                                 }
 215                         }
 216                         if(_iaps.empty()) {
 217                                 _kln89->DrawText("NO APR", 2, 0, 0);
 218                         } else {
 219                                 // TODO - output proper differentiation of ILS and NP APR and NP APR type eg GPS(R)
 220                                 _kln89->DrawText("NP APR", 2, 0, 0);
 221                         }
 222                 } else if(_subPage == 3) {
 223                         if(_nRwyPages > 1) {
 224                                 _kln89->DrawChar('+', 1, 3, 0);
 225                         }
 226                         unsigned int i = _curRwyPage * 2;
 227                         string s;
 228                         if(i < _aptRwys.size()) {
 229                                 // Rwy No.
 230                                 string s = _aptRwys[i]->ident();
 231                                 _kln89->DrawText(s, 2, 9, 3);
 232                                 _kln89->DrawText("/", 2, 12, 3);
 233                                 _kln89->DrawText(GetReverseRunwayNo(s), 2, 13, 3);
 234                                 // Length
 235                                 s = GPSitoa(int(float(_aptRwys[i]->lengthFt()) * (_kln89->_altUnits == GPS_ALT_UNITS_FT ? 1.0 : SG_FEET_TO_METER) + 0.5));
 236                                 _kln89->DrawText(s, 2, 5 - s.size(), 2);
 237                                 _kln89->DrawText((_kln89->_altUnits == GPS_ALT_UNITS_FT ? "ft" : "m"), 2, 5, 2);
 238                                 // Surface
 239                                 // TODO - why not store these strings as an array?
 240                                 switch(_aptRwys[i]->surface()) {
 241                                 case 1:
 242                                         // Asphalt - fall through
 243                                 case 2:
 244                                         // Concrete
 245                                         _kln89->DrawText("HRD", 2, 9, 2);
 246                                         break;
 247                                 case 3:
 248                                 case 8:
 249                                         // Turf / Turf helipad
 250                                         _kln89->DrawText("TRF", 2, 9, 2);
 251                                         break;
 252                                 case 4:
 253                                 case 9:
 254                                         // Dirt / Dirt helipad
 255                                         _kln89->DrawText("DRT", 2, 9, 2);
 256                                         break;
 257                                 case 5:
 258                                         // Gravel
 259                                         _kln89->DrawText("GRV", 2, 9, 2);
 260                                         break;
 261                                 case 6:
 262                                         // Asphalt helipad - fall through
 263                                 case 7:
 264                                         // Concrete helipad
 265                                         _kln89->DrawText("HRD", 2, 9, 2);
 266                                         break;
 267                                 case 12:
 268                                         // Lakebed
 269                                         _kln89->DrawText("CLY", 2, 9, 2);
 270                                 default:
 271                                         // erm? ...
 272                                         _kln89->DrawText("MAT", 2, 9, 2);
 273                                 }
 274                         }
 275                         i++;
 276                         if(i < _aptRwys.size()) {
 277                                 // Rwy No.
 278                                 string s = _aptRwys[i]->ident();
 279                                 _kln89->DrawText(s, 2, 9, 1);
 280                                 _kln89->DrawText("/", 2, 12, 1);
 281                                 _kln89->DrawText(GetReverseRunwayNo(s), 2, 13, 1);
 282                                 // Length
 283                                 s = GPSitoa(int(float(_aptRwys[i]->lengthFt()) * (_kln89->_altUnits == GPS_ALT_UNITS_FT ? 1.0 : SG_FEET_TO_METER) + 0.5));
 284                                 _kln89->DrawText(s, 2, 5 - s.size(), 0);
 285                                 _kln89->DrawText((_kln89->_altUnits == GPS_ALT_UNITS_FT ? "ft" : "m"), 2, 5, 0);
 286                                 // Surface
 287                                 // TODO - why not store these strings as an array?
 288                                 switch(_aptRwys[i]->surface()) {
 289                                 case 1:
 290                                         // Asphalt - fall through
 291                                 case 2:
 292                                         // Concrete
 293                                         _kln89->DrawText("HRD", 2, 9, 0);
 294                                         break;
 295                                 case 3:
 296                                 case 8:
 297                                         // Turf / Turf helipad
 298                                         _kln89->DrawText("TRF", 2, 9, 0);
 299                                         break;
 300                                 case 4:
 301                                 case 9:
 302                                         // Dirt / Dirt helipad
 303                                         _kln89->DrawText("DRT", 2, 9, 0);
 304                                         break;
 305                                 case 5:
 306                                         // Gravel
 307                                         _kln89->DrawText("GRV", 2, 9, 0);
 308                                         break;
 309                                 case 6:
 310                                         // Asphalt helipad - fall through
 311                                 case 7:
 312                                         // Concrete helipad
 313                                         _kln89->DrawText("HRD", 2, 9, 0);
 314                                         break;
 315                                 case 12:
 316                                         // Lakebed
 317                                         _kln89->DrawText("CLY", 2, 9, 0);
 318                                 default:
 319                                         // erm? ...
 320                                         _kln89->DrawText("MAT", 2, 9, 0);
 321                                 }
 322                         }
 323                 } else if(_subPage == 4) {
 324                         if(_nFreqPages > 1) {
 325                                 _kln89->DrawChar('+', 1, 3, 0);
 326                         }
 327                         unsigned int i = _curFreqPage * 3;
 328                         if(i < _aptFreqs.size()) {
 329                                 _kln89->DrawText(_aptFreqs[i].service, 2, 0, 2);
 330                                 _kln89->DrawFreq(_aptFreqs[i].freq, 2, 7, 2);
 331                         }
 332                         i++;
 333                         if(i < _aptFreqs.size()) {
 334                                 _kln89->DrawText(_aptFreqs[i].service, 2, 0, 1);
 335                                 _kln89->DrawFreq(_aptFreqs[i].freq, 2, 7, 1);
 336                         }
 337                         i++;
 338                         if(i < _aptFreqs.size()) {
 339                                 _kln89->DrawText(_aptFreqs[i].service, 2, 0, 0);
 340                                 _kln89->DrawFreq(_aptFreqs[i].freq, 2, 7, 0);
 341                         }
 342                 } else if(_subPage == 5) {
 343                         // TODO - user ought to be allowed to leave persistent remarks
 344                         _kln89->DrawText("[Remarks]", 2, 2, 2);
 345                 } else if(_subPage == 6) {
 346                         // We don't have SID/STAR database yet
 347                         // TODO
 348                         _kln89->DrawText("No SID/STAR", 2, 3, 2);
 349                         _kln89->DrawText("In Data Base", 2, 2, 1);
 350                         _kln89->DrawText("For This Airport", 2, 0, 0);
 351                 } else if(_subPage == 7) {
 352                         if(_iaps.empty()) {
 353                                 _kln89->DrawText("IAP", 2, 11, 3);
 354                                 _kln89->DrawText("No Approach", 2, 3, 2);
 355                                 _kln89->DrawText("In Data Base", 2, 2, 1);
 356                                 _kln89->DrawText("For This Airport", 2, 0, 0);
 357                         } else {
 358                                 if(_iafDialog) {
 359                                         _kln89->DrawText(_iaps[_curIap]->_ident, 2, 1, 3);
 360                                         _kln89->DrawText(_iaps[_curIap]->_rwyStr, 2, 7, 3);
 361                                         _kln89->DrawText(_iaps[_curIap]->_aptIdent, 2, 12, 3);
 362                                         _kln89->DrawText("IAF", 2, 2, 2);
 363                                         unsigned int line = 0;
 364                                         for(unsigned int i=_iafStart; i<_approachRoutes.size(); ++i) {
 365                                                 if(line == 2) {
 366                                                         i = _approachRoutes.size() - 1;
 367                                                 }
 368                                                 // Assume that the IAF number is always single digit!
 369                                                 _kln89->DrawText(GPSitoa(i+1), 2, 6, 2-line);
 370                                                 if(!(_kln89->_mode == KLN89_MODE_CRSR && _kln89->_blink && _uLinePos == (line + 1))) {
 371                                                         _kln89->DrawText(_approachRoutes[i]->waypoints[0]->id, 2, 8, 2-line);
 372                                                 }
 373                                                 if(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == (line + 1) && !(_kln89->_blink )) {
 374                                                         _kln89->Underline(2, 8, 2-line, 5);
 375                                                 }
 376                                                 ++line;
 377                                         }
 378                                         if(_uLinePos > 0 && !(_kln89->_blink)) {
 379                                                 _kln89->DrawEnt();
 380                                         }
 381                                 } else if(_addDialog) {
 382                                         _kln89->DrawText(_iaps[_curIap]->_ident, 2, 1, 3);
 383                                         _kln89->DrawText(_iaps[_curIap]->_rwyStr, 2, 7, 3);
 384                                         _kln89->DrawText(_iaps[_curIap]->_aptIdent, 2, 12, 3);
 385                                         string s = GPSitoa(_fStart + 1);
 386                                         _kln89->DrawText(s, 2, 2-s.size(), 2);
 387                                         s = GPSitoa(_kln89->_approachFP->waypoints.size());
 388                                         _kln89->DrawText(s, 2, 2-s.size(), 1);
 389                                         if(!(_uLinePos == _fStart+1 && _kln89->_blink)) {
 390                                                 _kln89->DrawText(_kln89->_approachFP->waypoints[_fStart]->id, 2, 4, 2);
 391                                                 if(_uLinePos == _fStart+1) _kln89->Underline(2, 4, 2, 6);
 392                                         }
 393                                         if(!(_uLinePos == _maxULinePos-1 && _kln89->_blink)) {
 394                                                 _kln89->DrawText(_kln89->_approachFP->waypoints[_kln89->_approachFP->waypoints.size()-1]->id, 2, 4, 1);
 395                                                 if(_uLinePos == _maxULinePos-1) _kln89->Underline(2, 4, 1, 6);
 396                                         }
 397                                         if(!(_uLinePos > _kln89->_approachFP->waypoints.size() && _kln89->_blink)) {
 398                                                 _kln89->DrawText("ADD TO FPL 0?", 2, 2, 0);
 399                                                 if(_uLinePos > _kln89->_approachFP->waypoints.size()) {
 400                                                         _kln89->Underline(2, 2, 0, 13);
 401                                                         _kln89->DrawEnt();
 402                                                 }
 403                                         }
 404                                 } else if(_replaceDialog) {
 405                                         _kln89->DrawText(_iaps[_curIap]->_ident, 2, 1, 3);
 406                                         _kln89->DrawText(_iaps[_curIap]->_rwyStr, 2, 7, 3);
 407                                         _kln89->DrawText(_iaps[_curIap]->_aptIdent, 2, 12, 3);
 408                                         _kln89->DrawText("Replace Existing", 2, 0, 2);
 409                                         _kln89->DrawText("Approach", 2, 4, 1);
 410                                         if(_uLinePos > 0 && !(_kln89->_blink)) {
 411                                                 _kln89->DrawText("APPROVE?", 2, 4, 0);
 412                                                 _kln89->Underline(2, 4, 0, 8);
 413                                                 _kln89->DrawEnt();
 414                                         }
 415                                 } else {
 416                                         _kln89->DrawText("IAP", 2, 11, 3);
 417                                         bool selApp = false;
 418                                         if(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos > 4) {
 419                                                 selApp = true;
 420                                                 if(!_kln89->_blink) _kln89->DrawEnt();
 421                                         }
 422                                         // _maxULine pos should be 4 + iaps.size() at this point.
 423                                         // Draw a maximum of 3 IAPs.
 424                                         // If there are more than 3 IAPs for this airport, then we need to offset the start
 425                                         // of the list if _uLinePos is pointing at the 4th or later IAP.
 426                                         unsigned int offset = 0;
 427                                         unsigned int index;
 428                                         if(_uLinePos > 7) {
 429                                                 offset = _uLinePos - 7;
 430                                         }
 431                                         for(unsigned int i=0; i<3; ++i) {
 432                                                 index = offset + i;
 433                                                 if(index < _iaps.size()) {
 434                                                         string s = GPSitoa(index+1);
 435                                                         _kln89->DrawText(s, 2, 2 - s.size(), 2-i);
 436                                                         if(!(selApp && _uLinePos == index+5 && _kln89->_blink)) {
 437                                                                 _kln89->DrawText(_iaps[index]->_ident, 2, 3, 2-i);
 438                                                                 _kln89->DrawText(_iaps[index]->_rwyStr, 2, 9, 2-i);
 439                                                         }
 440                                                         if(selApp && _uLinePos == index+5 && !_kln89->_blink) {
 441                                                                 _kln89->Underline(2, 3, 2-i, 9);
 442                                                         }
 443                                                 } else {
 444                                                         break;
 445                                                 }
 446                                         }
 447                                 }
 448                         }
 449                 }
 450         } else {
 451                 if(_kln89->_mode != KLN89_MODE_CRSR) _kln89->DrawText(_apt_id, 2, 1, 3);
 452                 if(_subPage == 0) {
 453                         /*
 454                         _kln89->DrawText("----.-", 2, 9, 3);
 455                         _kln89->DrawText("--------------", 2, 0, 2);
 456                         _kln89->DrawText("- -- --.--'", 2, 3, 1);
 457                         _kln89->DrawText("---- --.--'", 2, 3, 0);
 458                         _kln89->DrawSpecialChar(0, 2, 7, 1);
 459                         _kln89->DrawSpecialChar(0, 2, 7, 0);
 460                         */
 461                 }
 462         }
 463
 464         if(_kln89->_mode == KLN89_MODE_CRSR) {
 465                 if(!(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {
 466                         if(_uLinePos > 0 && _uLinePos < 5) {
 467                                 // TODO - blink as well
 468                                 _kln89->Underline(2, _uLinePos, 3, 1);
 469                         }
 470                         for(unsigned int i = 0; i < _apt_id.size(); ++i) {
 471                                 if(_uLinePos != (i + 1)) {
 472                                         _kln89->DrawChar(_apt_id[i], 2, i + 1, 3);
 473                                 } else {
 474                                         if(!_kln89->_blink) _kln89->DrawChar(_apt_id[i], 2, i + 1, 3);
 475                                 }
 476                         }
 477                 }
 478         }
 479
 480         _id = _apt_id;
 481
 482         KLN89Page::Update(dt);
 483 }
 484
 485 void KLN89AptPage::SetId(const string& s) {
 486         if(s != _apt_id || s != _last_apt_id) {
 487                 UpdateAirport(s);       // If we don't do this here we break things if s is the same as the current ID since the update wouldn't get called then.
 488                 /*
 489                         DCL: Hmmm - I wrote the comment above, but I don't quite understand it!
 490                         I'm not quite sure why I don't simply set _apt_id here (and NOT _last_apt_id)
 491                         and let the logic in Update(...) handle the airport details cache update.
 492                 */
 493         }
 494         _last_apt_id = _apt_id;
 495         _save_apt_id = _apt_id;
 496         _apt_id = s;
 497 }
 498
 499 // Update the cached airport details
 500 void KLN89AptPage::UpdateAirport(const string& id) {
 501         // Frequencies
 502         _aptFreqs.clear();
 503         ATCData ad;
 504         AptFreq aq;
 505         //cout << "UpdateAirport called, id = " << id << '\n';
 506         // TODO - the logic below only returns one service per type per airport - they can be on more than one freq though.
 507         if(current_commlist->FindByCode(id, ad, ATIS)) {
 508                 //cout << "Found ATIS\n";
 509                 aq.service = "ATIS*";
 510                 aq.freq = ad.freq;
 511                 _aptFreqs.push_back(aq);
 512         }
 513         if(current_commlist->FindByCode(id, ad, GROUND)) {
 514                 aq.service = "GRND*";
 515                 aq.freq = ad.freq;
 516                 _aptFreqs.push_back(aq);
 517         }
 518         if(current_commlist->FindByCode(id, ad, TOWER)) {
 519                 aq.service = "TWR *";
 520                 aq.freq = ad.freq;
 521                 _aptFreqs.push_back(aq);
 522         }
 523         if(current_commlist->FindByCode(id, ad, APPROACH)) {
 524                 aq.service = "APR";
 525                 aq.freq = ad.freq;
 526                 _aptFreqs.push_back(aq);
 527         }
 528         _nFreqPages = (unsigned int)ceil((float(_aptFreqs.size())) / 3.0f);
 529
 530         // Runways
 531         _aptRwys.clear();
 532   const FGAirport* apt = fgFindAirportID(id);
 533   assert(apt);
 534
 535   // build local array, longest runway first
 536   for (unsigned int r=0; r<apt->numRunways(); ++r) {
 537     FGRunway* rwy(apt->getRunwayByIndex(r));
 538     if ((r > 0) && (rwy->lengthFt() > _aptRwys.front()->lengthFt())) {
 539       _aptRwys.insert(_aptRwys.begin(), rwy);
 540     } else {
 541       _aptRwys.push_back(rwy);
 542     }
 543   }
 544
 545         _nRwyPages = (_aptRwys.size() + 1) / 2; // 2 runways per page.
 546         if(_nFreqPages < 1) _nFreqPages = 1;
 547         if(_nRwyPages < 1) _nRwyPages = 1;
 548
 549         // Instrument approaches
 550         // Only non-precision for now - TODO - handle precision approaches if necessary
 551         _iaps.clear();
 552         iap_map_iterator itr = _kln89->_np_iap.find(id);
 553         if(itr != _kln89->_np_iap.end()) {
 554                 _iaps = itr->second;
 555         }
 556         if(_subPage == 7) {
 557                 if(_iafDialog || _addDialog || _replaceDialog) {
 558                         // Eek - major logic error if an airport details cache update occurs
 559                         // with one of these dialogs active.
 560                         // TODO - output a warning.
 561                         //cout << "HELP!!!!!!!!!!\n";
 562                 } else {
 563                         _maxULinePos = 4 + _iaps.size();        // We shouldn't need to check the crsr for out-of-bounds here since we only update the airport details when the airport code is changed - ie. _uLinePos <= 4!
 564                 }
 565         }
 566 }
 567
 568 void KLN89AptPage::CrsrPressed() {
 569         if(_kln89->_mode == KLN89_MODE_DISP) {
 570                 if(_subPage == 7) {
 571                         // Pressing crsr jumps back to vanilla IAP page.
 572                         _iafDialog = false;
 573                         _addDialog = false;
 574                         _replaceDialog = false;
 575                 }
 576                 return;
 577         }
 578         if(_kln89->_obsMode) {
 579                 _uLinePos = 0;
 580         } else {
 581                 _uLinePos = 1;
 582         }
 583         if(_subPage == 0) {
 584                 _maxULinePos = 32;
 585         } else if(_subPage == 7) {
 586                 // Don't *think* we need some of this since some of it we can only get to by pressing ENT, not CRSR.
 587                 if(_iafDialog) {
 588                         _maxULinePos = _approachRoutes.size();
 589                         _uLinePos = 1;
 590                 } else if(_addDialog) {
 591                         _maxULinePos = 1;
 592                         _uLinePos = 1;
 593                 } else if(_replaceDialog) {
 594                         _maxULinePos = 1;
 595                         _uLinePos = 1;
 596                 } else {
 597                         _maxULinePos = 4 + _iaps.size();
 598                         if(_iaps.empty()) {
 599                                 _uLinePos = 1;
 600                         } else {
 601                                 _uLinePos = 5;
 602                         }
 603                 }
 604         } else {
 605                 _maxULinePos = 5;
 606         }
 607 }
 608
 609 void KLN89AptPage::ClrPressed() {
 610         if(_subPage == 1 && _uLinePos == 5) {
 611                 _to_flag = !_to_flag;
 612         } else if(_subPage == 7) {
 613                 // Clear backs out IAP selection one step at a time
 614                 if(_iafDialog) {
 615                         _iafDialog = false;
 616                         _maxULinePos = 4 + _iaps.size();
 617                         if(_iaps.empty()) {
 618                                 _uLinePos = 1;
 619                         } else {
 620                                 _uLinePos = 5;
 621                         }
 622                 } else if(_addDialog) {
 623                         _addDialog = false;
 624                         if(_approachRoutes.size() > 1) {
 625                                 _iafDialog = true;
 626                                 _maxULinePos = 1;
 627                                 // Don't reset _curIaf since it is remembed.
 628                                 _uLinePos = 1 + _curIaf;        // TODO - make this robust to more than 3 IAF
 629                         } else {
 630                                 _maxULinePos = 4 + _iaps.size();
 631                                 if(_iaps.empty()) {
 632                                         _uLinePos = 1;
 633                                 } else {
 634                                         _uLinePos = 5;
 635                                 }
 636                         }
 637                 } else if(_replaceDialog) {
 638                         _replaceDialog = false;
 639                         _addDialog = true;
 640                         _maxULinePos = 1;
 641                         _uLinePos = 1;
 642                 }
 643         }
 644 }
 645
 646 void KLN89AptPage::EntPressed() {
 647         if(_entInvert) {
 648                 _entInvert = false;
 649                 if(_kln89->_dtoReview) {
 650                         _kln89->DtoInitiate(_apt_id);
 651                 } else {
 652                         _last_apt_id = _apt_id;
 653                         _apt_id = _save_apt_id;
 654                 }
 655         } else if(_subPage == 7 && _kln89->_mode == KLN89_MODE_CRSR && _uLinePos > 0) {
 656                 // We are selecting an approach
 657                 if(_iafDialog) {
 658                         if(_uLinePos > 0) {
 659                                 // Record the IAF that was picked
 660                                 if(_uLinePos == 3) {
 661                                         _curIaf = _approachRoutes.size() - 1;
 662                                 } else {
 663                                         _curIaf = _uLinePos - 1 + _iafStart;
 664                                 }
 665                                 //cout << "_curIaf = " << _curIaf << '\n';
 666                                 // TODO - delete the waypoints inside _approachFP before clearing them!!!!!!!
 667                                 _kln89->_approachFP->waypoints.clear();
 668                                 GPSWaypoint* wp = new GPSWaypoint;
 669                                 *wp = *(_approachRoutes[_curIaf]->waypoints[0]);        // Need to make copies here since we're going to alter ID and type sometimes
 670                                 string iafid = wp->id;
 671                                 _kln89->_approachFP->waypoints.push_back(wp);
 672                                 for(unsigned int i=0; i<_IAP.size(); ++i) {
 673                                         if(_IAP[i]->id != iafid) {      // Don't duplicate waypoints that are part of the initial fix list and the approach procedure list.
 674                         // FIXME - allow the same waypoint to be both the IAF and the FAF in some
 675                         // approaches that have a procedure turn eg. KDLL
 676                         // Also allow MAF to be the same as IAF!
 677                                                 wp = new GPSWaypoint;
 678                                                 *wp = *_IAP[i];
 679                                                 //cout << "Adding waypoint " << wp->id << ", type is " << wp->appType << '\n';
 680                                                 //if(wp->appType == GPS_FAF) wp->id += 'f';
 681                                                 //if(wp->appType == GPS_MAP) wp->id += 'm';
 682                                                 //cout << "New id = " << wp->id << '\n';
 683                                                 _kln89->_approachFP->waypoints.push_back(wp);
 684                                         }
 685                                 }
 686                                 _iafDialog = false;
 687                                 _addDialog = true;
 688                                 _maxULinePos = _kln89->_approachFP->waypoints.size() + 1;
 689                                 _uLinePos = _maxULinePos;
 690                         }
 691                 } else if(_addDialog) {
 692                         if(_uLinePos == _maxULinePos) {
 693                                 _addDialog = false;
 694                                 if(_kln89->ApproachLoaded()) {
 695                                         _replaceDialog = true;
 696                                         _uLinePos = 1;
 697                                         _maxULinePos = 1;
 698                                 } else {
 699                     // Now load the approach into the active flightplan.
 700                     // As far as I can tell, the rules are this:
 701                     // If the airport of the approach is in the flightplan, insert it prior to this.  (Not sure what happens if airport has already been passed).
 702                     // If the airport is not in the flightplan, append the approach to the flightplan, even if it is closer than the current active leg,
 703                     // in which case reorientate to flightplan might put us on the approach, but unable to activate it.
 704                     // However, it appears from the sim as if this can indeed happen if the user is not carefull.
 705                     bool added = false;
 706                     for(unsigned int i=0; i<_kln89->_activeFP->waypoints.size(); ++i) {
 707                         if(_kln89->_activeFP->waypoints[i]->id == _apt_id) {
 708                             _kln89->_activeFP->waypoints.insert(_kln89->_activeFP->waypoints.begin()+i, _kln89->_approachFP->waypoints.begin(), _kln89->_approachFP->waypoints.end());
 709                             added = true;
 710                             break;
 711                         }
 712                     }
 713                     if(!added) {
 714                         _kln89->_activeFP->waypoints.insert(_kln89->_activeFP->waypoints.end(), _kln89->_approachFP->waypoints.begin(), _kln89->_approachFP->waypoints.end());
 715                     }
 716                                         _kln89->_approachID = _apt_id;
 717                                         _kln89->_approachAbbrev = _iaps[_curIap]->_ident;
 718                                         _kln89->_approachRwyStr = _iaps[_curIap]->_rwyStr;
 719                                         _kln89->_approachLoaded = true;
 720                                         //_kln89->_messageStack.push_back("*Press ALT To Set Baro");
 721                                         // Actually - this message is only sent when we go into appraoch-arm mode.
 722                                         // TODO - check the flightplan for consistency
 723                                         _kln89->OrientateToActiveFlightPlan();
 724                                         _kln89->_mode = KLN89_MODE_DISP;
 725                                         _kln89->_curPage = 7;
 726                                         _kln89->_activePage = _kln89->_pages[7];        // Do we need to clean up here at all before jumping?
 727                                 }
 728                         }
 729                 } else if(_replaceDialog) {
 730                         // TODO - load the approach!
 731                 } else if(_uLinePos > 4) {
 732                         _approachRoutes.clear();
 733                         _IAP.clear();
 734                         _curIaf = 0;
 735                         _approachRoutes = ((FGNPIAP*)(_iaps[_uLinePos-5]))->_approachRoutes;
 736                         _IAP = ((FGNPIAP*)(_iaps[_uLinePos-5]))->_IAP;
 737                         _curIap = _uLinePos - 5;        // TODO - handle the start of list ! no. 1, and the end of list not sequential!
 738                         _uLinePos = 1;
 739                         if(_approachRoutes.size() > 1) {
 740                                 // More than 1 IAF - display the selection dialog
 741                                 _iafDialog = true;
 742                                 _maxULinePos = _approachRoutes.size();
 743                         } else {
 744                                 // There is only 1 IAF, so load the waypoints into the approach flightplan here.
 745                                 // TODO - there is nasty code duplication loading the approach FP between the case here where we have only one
 746                                 // IAF and the case where we must choose the IAF from a list.  Try to tidy this after it is all working properly.
 747                                 _kln89->_approachFP->waypoints.clear();
 748                                 GPSWaypoint* wp = new GPSWaypoint;
 749                                 *wp = *(_approachRoutes[0]->waypoints[0]);      // Need to make copies here since we're going to alter ID and type sometimes
 750                                 string iafid = wp->id;
 751                                 _kln89->_approachFP->waypoints.push_back(wp);
 752                                 for(unsigned int i=0; i<_IAP.size(); ++i) {
 753                                         if(_IAP[i]->id != iafid) {      // Don't duplicate waypoints that are part of the initial fix list and the approach procedure list.
 754                                                 // FIXME - allow the same waypoint to be both the IAF and the FAF in some
 755                                                 // approaches that have a procedure turn eg. KDLL
 756                                                 // Also allow MAF to be the same as IAF!
 757                                                 wp = new GPSWaypoint;
 758                                                 *wp = *_IAP[i];
 759                                                 _kln89->_approachFP->waypoints.push_back(wp);
 760                                         }
 761                                 }
 762                                 _addDialog = true;
 763                                 _maxULinePos = 1;
 764                         }
 765                 }
 766         }
 767 }
 768
 769 void KLN89AptPage::Knob1Left1() {
 770         if(_kln89->_mode == KLN89_MODE_CRSR && _subPage == 7 && _addDialog) {
 771                 if(_uLinePos == _maxULinePos) {
 772                         _uLinePos--;
 773                         if(_kln89->_approachFP->waypoints.size() > 1) _fStart = _kln89->_approachFP->waypoints.size() - 2;
 774                 } else if(_uLinePos == _maxULinePos - 1) {
 775                         _uLinePos--;
 776                 } else if(_uLinePos > 0) {
 777                         if(_fStart == 0) {
 778                                 _uLinePos--;
 779                         } else {
 780                                 _uLinePos--;
 781                                 _fStart--;
 782                         }
 783                 }
 784         } else {
 785                 KLN89Page::Knob1Left1();
 786         }
 787 }
 788
 789 void KLN89AptPage::Knob1Right1() {
 790         if(_kln89->_mode == KLN89_MODE_CRSR && _subPage == 7 && _addDialog) {
 791                 if(_uLinePos == _maxULinePos) {
 792                         // no-op
 793                 } else if(_uLinePos == _maxULinePos - 1) {
 794                         _uLinePos++;
 795                         _fStart = 0;
 796                 } else if(_uLinePos > 0) {
 797                         if(_fStart >= _kln89->_approachFP->waypoints.size() - 2) {
 798                                 _uLinePos++;
 799                         } else {
 800                                 _uLinePos++;
 801                                 _fStart++;
 802                         }
 803                 } else if(_uLinePos == 0) {
 804                         _uLinePos++;
 805                         _fStart = 0;
 806                 }
 807         } else {
 808                 KLN89Page::Knob1Right1();
 809         }
 810 }
 811
 812 void KLN89AptPage::Knob2Left1() {
 813         if(_kln89->_mode != KLN89_MODE_CRSR || _uLinePos == 0) {
 814                 if(_uLinePos == 0 && _kln89->_mode == KLN89_MODE_CRSR && _kln89->_obsMode) {
 815                         KLN89Page::Knob2Left1();
 816                 } else if(_subPage == 5) {
 817                         _subPage = 4;
 818                         _curFreqPage = _nFreqPages - 1;
 819                 } else if(_subPage == 4) {
 820                         // Freqency pages
 821                         if(_curFreqPage == 0) {
 822                                 _subPage = 3;
 823                                 _curRwyPage = _nRwyPages - 1;
 824                         } else {
 825                                 _curFreqPage--;
 826                         }
 827                 } else if(_subPage == 3) {
 828                         if(_curRwyPage == 0) {
 829                                 KLN89Page::Knob2Left1();
 830                         } else {
 831                                 _curRwyPage--;
 832                         }
 833                 } else if(_subPage == 0) {
 834                         _subPage = 7;
 835                         // We have to set _uLinePos here even though the cursor isn't pressed, to
 836                         // ensure that the list displays properly.
 837                         if(_iaps.empty()) {
 838                                 _uLinePos = 1;
 839                         } else {
 840                                 _uLinePos = 5;
 841                         }
 842                 } else {
 843                         KLN89Page::Knob2Left1();
 844                 }
 845         } else {
 846                 if(_uLinePos < 5 && !(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {
 847                         // Same logic for all pages - set the ID
 848                         _apt_id = _apt_id.substr(0, _uLinePos);
 849                         // ASSERT(_uLinePos > 0);
 850                         if(_uLinePos == (_apt_id.size() + 1)) {
 851                                 _apt_id += '9';
 852                         } else {
 853                                 _apt_id[_uLinePos - 1] = _kln89->DecChar(_apt_id[_uLinePos - 1], (_uLinePos == 1 ? false : true));
 854                         }
 855                 } else {
 856                         if(_subPage == 0) {
 857                                 // TODO - set by name
 858                         } else {
 859                                 // NO-OP - to/fr is cycled by clr button
 860                         }
 861                 }
 862         }
 863 }
 864
 865 void KLN89AptPage::Knob2Right1() {
 866         if(_kln89->_mode != KLN89_MODE_CRSR || _uLinePos == 0) {
 867                 if(_uLinePos == 0 && _kln89->_mode == KLN89_MODE_CRSR && _kln89->_obsMode) {
 868                         KLN89Page::Knob2Right1();
 869                 } else if(_subPage == 2) {
 870                         _subPage = 3;
 871                         _curRwyPage = 0;
 872                 } else if(_subPage == 3) {
 873                         if(_curRwyPage == _nRwyPages - 1) {
 874                                 _subPage = 4;
 875                                 _curFreqPage = 0;
 876                         } else {
 877                                 _curRwyPage++;
 878                         }
 879                 } else if(_subPage == 4) {
 880                         if(_curFreqPage == _nFreqPages - 1) {
 881                                 _subPage = 5;
 882                         } else {
 883                                 _curFreqPage++;
 884                         }
 885                 } else if(_subPage == 6) {
 886                         _subPage = 7;
 887                         // We have to set _uLinePos here even though the cursor isn't pressed, to
 888                         // ensure that the list displays properly.
 889                         if(_iaps.empty()) {
 890                                 _uLinePos = 1;
 891                         } else {
 892                                 _uLinePos = 5;
 893                         }
 894                 } else {
 895                         KLN89Page::Knob2Right1();
 896                 }
 897         } else {
 898                 if(_uLinePos < 5 && !(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {
 899                         // Same logic for all pages - set the ID
 900                         _apt_id = _apt_id.substr(0, _uLinePos);
 901                         // ASSERT(_uLinePos > 0);
 902                         if(_uLinePos == (_apt_id.size() + 1)) {
 903                                 _apt_id += 'A';
 904                         } else {
 905                                 _apt_id[_uLinePos - 1] = _kln89->IncChar(_apt_id[_uLinePos - 1], (_uLinePos == 1 ? false : true));
 906                         }
 907                 } else {
 908                         if(_subPage == 0) {
 909                                 // TODO - set by name
 910                         } else {
 911                                 // NO-OP - to/fr is cycled by clr button
 912                         }
 913                 }
 914         }
 915 }