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 - david.luff@nottingham.ac.uk
   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 #include <ATCDCL/commlist.hxx>
  30 #include <Main/globals.hxx>
  31
  32 // This function is copied from Airports/runways.cxx
  33 // TODO - Make the original properly available and remove this instance!!!!
  34 // Return reverse rwy number
  35 // eg 01 -> 19
  36 // 03L -> 21R
  37 static string GetReverseRunwayNo(string rwyno) {
  38     // cout << "Original rwyno = " << rwyNo << '\n';
  39
  40     // standardize input number
  41     string tmp = rwyno.substr(1, 1);
  42     if (( tmp == "L" || tmp == "R" || tmp == "C" ) || (rwyno.size() == 1)) {
  43                 tmp = rwyno;
  44                 rwyno = "0" + tmp;
  45                 SG_LOG( SG_GENERAL, SG_INFO,
  46                         "Standardising rwy number from " << tmp << " to " << rwyno );
  47     }
  48
  49     char buf[4];
  50     int rn = atoi(rwyno.substr(0,2).c_str());
  51     rn += 18;
  52     while(rn > 36) {
  53                 rn -= 36;
  54     }
  55     sprintf(buf, "%02i", rn);
  56     if(rwyno.size() == 3) {
  57                 if(rwyno.substr(2,1) == "L") {
  58                         buf[2] = 'R';
  59                         buf[3] = '\0';
  60                 } else if (rwyno.substr(2,1) == "R") {
  61                         buf[2] = 'L';
  62                         buf[3] = '\0';
  63                 } else if (rwyno.substr(2,1) == "C") {
  64                         buf[2] = 'C';
  65                         buf[3] = '\0';
  66                 } else if (rwyno.substr(2,1) == "T") {
  67                         buf[2] = 'T';
  68                         buf[3] = '\0';
  69                 } else {
  70                         SG_LOG(SG_GENERAL, SG_ALERT, "Unknown runway code "
  71                         << rwyno << " passed to GetReverseRunwayNo(...)");
  72                 }
  73     }
  74     return(buf);
  75 }
  76
  77 KLN89AptPage::KLN89AptPage(KLN89* parent)
  78 : KLN89Page(parent) {
  79         _nSubPages = 8;
  80         _subPage = 0;
  81         _name = "APT";
  82         _apt_id = "KHWD";
  83         // Make sure that _last_apt_id doesn't match at startup to force airport data to be fetched on first update.
  84         _last_apt_id = "XXXX";
  85         _nRwyPages = 1;
  86         _curRwyPage = 0;
  87         _nFreqPages = 1;
  88         _curFreqPage = 0;
  89         ap = NULL;
  90         _iapStart = 0;
  91         _iafStart = 0;
  92         _fStart = 0;
  93         _iaps.clear();
  94         _iafDialog = false;
  95         _addDialog = false;
  96         _replaceDialog = false;
  97         _curIap = 0;
  98         _curIaf = 0;
  99 }
 100
 101 KLN89AptPage::~KLN89AptPage() {
 102 }
 103
 104 void KLN89AptPage::Update(double dt) {
 105         bool actPage = (_kln89->_activePage->GetName() == "ACT" ? true : false);
 106         bool multi;  // Not set by FindFirst...
 107         bool exact = false;
 108         if(_apt_id.size() == 4) exact = true;
 109         // TODO - move this search out to where the button is pressed, and cache the result!
 110         if(_apt_id != _last_apt_id || ap == NULL) ap = _kln89->FindFirstAptById(_apt_id, multi, exact);
 111         //if(np == NULL) cout << "NULL... ";
 112         //if(b == false) cout << "false...\n";
 113         /*
 114         if(np && b) {
 115                 cout << "VOR FOUND!\n";
 116         } else {
 117                 cout << ":-(\n";
 118         }
 119         */
 120
 121         if(ap) {
 122                 //cout << "Valid airport found! id = " << ap->getId() << ", elev = " << ap->getElevation() << '\n';
 123                 if(_apt_id != _last_apt_id) {
 124                         UpdateAirport(ap->getId());
 125                         _last_apt_id = _apt_id;
 126                         _curFreqPage = 0;
 127                         _curRwyPage = 0;
 128                 }
 129                 _apt_id = ap->getId();
 130                 if(_kln89->GetActiveWaypoint()) {
 131                         if(_apt_id == _kln89->GetActiveWaypoint()->id) {
 132                                 if(!(_kln89->_waypointAlert && _kln89->_blink)) {
 133                                         // Active waypoint arrow
 134                                         _kln89->DrawSpecialChar(4, 2, 0, 3);
 135                                 }
 136                         }
 137                 }
 138                 if(_kln89->_mode != KLN89_MODE_CRSR) {
 139                         if(!(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {  // Don't draw the airport name when the IAP dialogs are active
 140                                 if(!_entInvert) {
 141                                         if(!actPage) {
 142                                                 _kln89->DrawText(ap->getId(), 2, 1, 3);
 143                                         } else {
 144                                                 // If it's the ACT page, The ID is shifted slightly right to make space for the waypoint index.
 145                                                 _kln89->DrawText(ap->getId(), 2, 4, 3);
 146                                                 char buf[3];
 147                                                 int n = snprintf(buf, 3, "%i", _kln89->GetActiveWaypointIndex() + 1);
 148                                                 _kln89->DrawText((string)buf, 2, 3 - n, 3);
 149                                         }
 150                                 } else {
 151                                         if(!_kln89->_blink) {
 152                                                 _kln89->DrawText(ap->getId(), 2, 1, 3, false, 99);
 153                                                 _kln89->DrawEnt();
 154                                         }
 155                                 }
 156                         }
 157                 }
 158                 if(_subPage == 0) {
 159                         // Name
 160                         _kln89->DrawText(ap->getName(), 2, 0, 2);
 161                         // Elevation
 162                         _kln89->DrawText(_kln89->_altUnits == GPS_ALT_UNITS_FT ? "ft" : "m", 2, 14, 3);
 163                         char buf[6];
 164                         int n = snprintf(buf, 5, "%i", (_kln89->_altUnits == GPS_ALT_UNITS_FT ? (int)(ap->getElevation()) : (int)((double)ap->getElevation() * SG_FEET_TO_METER)));
 165                         _kln89->DrawText((string)buf, 2, 14 - n, 3);
 166                         // Town
 167                         airport_id_str_map_iterator itr = _kln89->_airportTowns.find(_apt_id);
 168                         if(itr != _kln89->_airportTowns.end()) {
 169                                 _kln89->DrawText(itr->second, 2, 0, 1);
 170                         }
 171                         // State / Province / Country
 172                         itr = _kln89->_airportStates.find(_apt_id);
 173                         if(itr != _kln89->_airportStates.end()) {
 174                                 _kln89->DrawText(itr->second, 2, 0, 0);
 175                         }
 176                 } else if(_subPage == 1) {
 177                         _kln89->DrawLatitude(ap->getLatitude(), 2, 3, 2);
 178                         _kln89->DrawLongitude(ap->getLongitude(), 2, 3, 1);
 179                         _kln89->DrawDirDistField(ap->getLatitude() * SG_DEGREES_TO_RADIANS, ap->getLongitude() * SG_DEGREES_TO_RADIANS,
 180                                                  2, 0, 0, _to_flag, (_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == 5 ? true : false));
 181                 } else if(_subPage == 2) {
 182                         // Try and calculate a realistic difference from UTC based on longitude
 183                         float degLonPerHr = 360.0 / 24.0;       // 15 degrees per hour difference.
 184                         // Since 0 longitude is the middle of UTC, the boundaries will be at 7.5, 22.5, 37.5 etc.
 185                         int hrDiff = ((int)((fabs(ap->getLongitude())) + 7.5)) / 15;
 186                         _kln89->DrawText("UTC", 2, 0, 2);
 187                         if(hrDiff != 0) {
 188                                 _kln89->DrawText(ap->getLongitude() >= 0.0 ? "+" : "-", 2, 3, 2);
 189                                 char buf[3];
 190                                 snprintf(buf, 3, "%02i", hrDiff);
 191                                 _kln89->DrawText((string)buf, 2, 4, 2);
 192                                 _kln89->DrawText("(   DT)", 2, 6, 2);
 193                                 if(ap->getLongitude() >= 0.0) {
 194                                         hrDiff++;
 195                                 } else {
 196                                         hrDiff--;
 197                                 }
 198                                 _kln89->DrawText(ap->getLongitude() >= 0.0 ? "+" : "-", 2, 7, 2);
 199                                 snprintf(buf, 3, "%02i", hrDiff);
 200                                 _kln89->DrawText((string)buf, 2, 8, 2);
 201                         }
 202                         // I guess we can make a heuristic guess as to fuel availability from the runway sizes
 203                         // For now assume that airports with asphalt or concrete runways will have at least 100L,
 204                         // and that runways over 4000ft will have JET.
 205                         if(_aptRwys[0]._surface_code <= 2) {
 206                                 if(_aptRwys[0]._length >= 4000) {
 207                                         _kln89->DrawText("JET 100L", 2, 0, 1);
 208                                 } else {
 209                                         _kln89->DrawText("100L", 2, 0, 1);
 210                                 }
 211                         }
 212                         if(_iaps.empty()) {
 213                                 _kln89->DrawText("NO APR", 2, 0, 0);
 214                         } else {
 215                                 // TODO - output proper differentiation of ILS and NP APR and NP APR type eg GPS(R)
 216                                 _kln89->DrawText("NP APR", 2, 0, 0);
 217                         }
 218                 } else if(_subPage == 3) {
 219                         if(_nRwyPages > 1) {
 220                                 _kln89->DrawChar('+', 1, 3, 0);
 221                         }
 222                         unsigned int i = _curRwyPage * 2;
 223                         string s;
 224                         if(i < _aptRwys.size()) {
 225                                 // Rwy No.
 226                                 string s = _aptRwys[i]._rwy_no;
 227                                 _kln89->DrawText(s, 2, 9, 3);
 228                                 _kln89->DrawText("/", 2, 12, 3);
 229                                 _kln89->DrawText(GetReverseRunwayNo(s), 2, 13, 3);
 230                                 // Length
 231                                 s = GPSitoa(int(float(_aptRwys[i]._length) * (_kln89->_altUnits == GPS_ALT_UNITS_FT ? 1.0 : SG_FEET_TO_METER) + 0.5));
 232                                 _kln89->DrawText(s, 2, 5 - s.size(), 2);
 233                                 _kln89->DrawText((_kln89->_altUnits == GPS_ALT_UNITS_FT ? "ft" : "m"), 2, 5, 2);
 234                                 // Surface
 235                                 // TODO - why not store these strings as an array?
 236                                 switch(_aptRwys[i]._surface_code) {
 237                                 case 1:
 238                                         // Asphalt - fall through
 239                                 case 2:
 240                                         // Concrete
 241                                         _kln89->DrawText("HRD", 2, 9, 2);
 242                                         break;
 243                                 case 3:
 244                                 case 8:
 245                                         // Turf / Turf helipad
 246                                         _kln89->DrawText("TRF", 2, 9, 2);
 247                                         break;
 248                                 case 4:
 249                                 case 9:
 250                                         // Dirt / Dirt helipad
 251                                         _kln89->DrawText("DRT", 2, 9, 2);
 252                                         break;
 253                                 case 5:
 254                                         // Gravel
 255                                         _kln89->DrawText("GRV", 2, 9, 2);
 256                                         break;
 257                                 case 6:
 258                                         // Asphalt helipad - fall through
 259                                 case 7:
 260                                         // Concrete helipad
 261                                         _kln89->DrawText("HRD", 2, 9, 2);
 262                                         break;
 263                                 case 12:
 264                                         // Lakebed
 265                                         _kln89->DrawText("CLY", 2, 9, 2);
 266                                 default:
 267                                         // erm? ...
 268                                         _kln89->DrawText("MAT", 2, 9, 2);
 269                                 }
 270                         }
 271                         i++;
 272                         if(i < _aptRwys.size()) {
 273                                 // Rwy No.
 274                                 string s = _aptRwys[i]._rwy_no;
 275                                 _kln89->DrawText(s, 2, 9, 1);
 276                                 _kln89->DrawText("/", 2, 12, 1);
 277                                 _kln89->DrawText(GetReverseRunwayNo(s), 2, 13, 1);
 278                                 // Length
 279                                 s = GPSitoa(int(float(_aptRwys[i]._length) * (_kln89->_altUnits == GPS_ALT_UNITS_FT ? 1.0 : SG_FEET_TO_METER) + 0.5));
 280                                 _kln89->DrawText(s, 2, 5 - s.size(), 0);
 281                                 _kln89->DrawText((_kln89->_altUnits == GPS_ALT_UNITS_FT ? "ft" : "m"), 2, 5, 0);
 282                                 // Surface
 283                                 // TODO - why not store these strings as an array?
 284                                 switch(_aptRwys[i]._surface_code) {
 285                                 case 1:
 286                                         // Asphalt - fall through
 287                                 case 2:
 288                                         // Concrete
 289                                         _kln89->DrawText("HRD", 2, 9, 0);
 290                                         break;
 291                                 case 3:
 292                                 case 8:
 293                                         // Turf / Turf helipad
 294                                         _kln89->DrawText("TRF", 2, 9, 0);
 295                                         break;
 296                                 case 4:
 297                                 case 9:
 298                                         // Dirt / Dirt helipad
 299                                         _kln89->DrawText("DRT", 2, 9, 0);
 300                                         break;
 301                                 case 5:
 302                                         // Gravel
 303                                         _kln89->DrawText("GRV", 2, 9, 0);
 304                                         break;
 305                                 case 6:
 306                                         // Asphalt helipad - fall through
 307                                 case 7:
 308                                         // Concrete helipad
 309                                         _kln89->DrawText("HRD", 2, 9, 0);
 310                                         break;
 311                                 case 12:
 312                                         // Lakebed
 313                                         _kln89->DrawText("CLY", 2, 9, 0);
 314                                 default:
 315                                         // erm? ...
 316                                         _kln89->DrawText("MAT", 2, 9, 0);
 317                                 }
 318                         }
 319                 } else if(_subPage == 4) {
 320                         if(_nFreqPages > 1) {
 321                                 _kln89->DrawChar('+', 1, 3, 0);
 322                         }
 323                         unsigned int i = _curFreqPage * 3;
 324                         if(i < _aptFreqs.size()) {
 325                                 _kln89->DrawText(_aptFreqs[i].service, 2, 0, 2);
 326                                 _kln89->DrawFreq(_aptFreqs[i].freq, 2, 7, 2);
 327                         }
 328                         i++;
 329                         if(i < _aptFreqs.size()) {
 330                                 _kln89->DrawText(_aptFreqs[i].service, 2, 0, 1);
 331                                 _kln89->DrawFreq(_aptFreqs[i].freq, 2, 7, 1);
 332                         }
 333                         i++;
 334                         if(i < _aptFreqs.size()) {
 335                                 _kln89->DrawText(_aptFreqs[i].service, 2, 0, 0);
 336                                 _kln89->DrawFreq(_aptFreqs[i].freq, 2, 7, 0);
 337                         }
 338                 } else if(_subPage == 5) {
 339                         // TODO - user ought to be allowed to leave persistent remarks
 340                         _kln89->DrawText("[Remarks]", 2, 2, 2);
 341                 } else if(_subPage == 6) {
 342                         // We don't have SID/STAR database yet
 343                         // TODO
 344                         _kln89->DrawText("No SID/STAR", 2, 3, 2);
 345                         _kln89->DrawText("In Data Base", 2, 2, 1);
 346                         _kln89->DrawText("For This Airport", 2, 0, 0);
 347                 } else if(_subPage == 7) {
 348                         if(_iaps.empty()) {
 349                                 _kln89->DrawText("IAP", 2, 11, 3);
 350                                 _kln89->DrawText("No Approach", 2, 3, 2);
 351                                 _kln89->DrawText("In Data Base", 2, 2, 1);
 352                                 _kln89->DrawText("For This Airport", 2, 0, 0);
 353                         } else {
 354                                 if(_iafDialog) {
 355                                         _kln89->DrawText(_iaps[_curIap]->_abbrev, 2, 1, 3);
 356                                         _kln89->DrawText(_iaps[_curIap]->_rwyStr, 2, 7, 3);
 357                                         _kln89->DrawText(_iaps[_curIap]->_id, 2, 12, 3);
 358                                         _kln89->DrawText("IAF", 2, 2, 2);
 359                                         int line = 0;
 360                                         for(unsigned int i=_iafStart; i<_IAF.size(); ++i) {
 361                                                 if(line == 2) {
 362                                                         i = _IAF.size() - 1;
 363                                                 }
 364                                                 // Assume that the IAF number is always single digit!
 365                                                 _kln89->DrawText(GPSitoa(i+1), 2, 6, 2-line);
 366                                                 if(!(_kln89->_mode == KLN89_MODE_CRSR && _kln89->_blink && _uLinePos == (line + 1))) {
 367                                                         _kln89->DrawText(_IAF[i]->id, 2, 8, 2-line);
 368                                                 }
 369                                                 if(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == (line + 1) && !(_kln89->_blink )) {
 370                                                         _kln89->Underline(2, 8, 2-line, 5);
 371                                                 }
 372                                                 ++line;
 373                                         }
 374                                         if(_uLinePos > 0 && !(_kln89->_blink)) {
 375                                                 _kln89->DrawEnt();
 376                                         }
 377                                 } else if(_addDialog) {
 378                                         _kln89->DrawText(_iaps[_curIap]->_abbrev, 2, 1, 3);
 379                                         _kln89->DrawText(_iaps[_curIap]->_rwyStr, 2, 7, 3);
 380                                         _kln89->DrawText(_iaps[_curIap]->_id, 2, 12, 3);
 381                                         string s = GPSitoa(_fStart + 1);
 382                                         _kln89->DrawText(s, 2, 2-s.size(), 2);
 383                                         s = GPSitoa(_kln89->_approachFP->waypoints.size());
 384                                         _kln89->DrawText(s, 2, 2-s.size(), 1);
 385                                         if(!(_uLinePos == _fStart+1 && _kln89->_blink)) {
 386                                                 _kln89->DrawText(_kln89->_approachFP->waypoints[_fStart]->id, 2, 4, 2);
 387                                                 if(_uLinePos == _fStart+1) _kln89->Underline(2, 4, 2, 6);
 388                                         }
 389                                         if(!(_uLinePos == _maxULinePos-1 && _kln89->_blink)) {
 390                                                 _kln89->DrawText(_kln89->_approachFP->waypoints[_kln89->_approachFP->waypoints.size()-1]->id, 2, 4, 1);
 391                                                 if(_uLinePos == _maxULinePos-1) _kln89->Underline(2, 4, 1, 6);
 392                                         }
 393                                         if(!(_uLinePos > _kln89->_approachFP->waypoints.size() && _kln89->_blink)) {
 394                                                 _kln89->DrawText("ADD TO FPL 0?", 2, 2, 0);
 395                                                 if(_uLinePos > _kln89->_approachFP->waypoints.size()) {
 396                                                         _kln89->Underline(2, 2, 0, 13);
 397                                                         _kln89->DrawEnt();
 398                                                 }
 399                                         }
 400                                 } else if(_replaceDialog) {
 401                                         _kln89->DrawText(_iaps[_curIap]->_abbrev, 2, 1, 3);
 402                                         _kln89->DrawText(_iaps[_curIap]->_rwyStr, 2, 7, 3);
 403                                         _kln89->DrawText(_iaps[_curIap]->_id, 2, 12, 3);
 404                                         _kln89->DrawText("Replace Existing", 2, 0, 2);
 405                                         _kln89->DrawText("Approach", 2, 4, 1);
 406                                         if(_uLinePos > 0 && !(_kln89->_blink)) {
 407                                                 _kln89->DrawText("APPROVE?", 2, 4, 0);
 408                                                 _kln89->Underline(2, 4, 0, 8);
 409                                                 _kln89->DrawEnt();
 410                                         }
 411                                 } else {
 412                                         _kln89->DrawText("IAP", 2, 11, 3);
 413                                         int check = 0;
 414                                         bool selApp = false;
 415                                         if(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos > 4) {
 416                                                 selApp = true;
 417                                                 if(!_kln89->_blink) _kln89->DrawEnt();
 418                                         }
 419                                         for(unsigned int i=0; i<_iaps.size(); ++i) {    // TODO - do this properly when > 3 IAPs
 420                                                 string s = GPSitoa(i+1);
 421                                                 _kln89->DrawText(s, 2, 2 - s.size(), 2-i);
 422                                                 if(!(selApp && _uLinePos == 5+i && _kln89->_blink)) {
 423                                                         _kln89->DrawText(_iaps[i]->_abbrev, 2, 3, 2-i);
 424                                                         _kln89->DrawText(_iaps[i]->_rwyStr, 2, 9, 2-i);
 425                                                 }
 426                                                 if(selApp && _uLinePos == 5+i && !_kln89->_blink) {
 427                                                         _kln89->Underline(2, 3, 2-i, 9);
 428                                                 }
 429                                                 check++;
 430                                                 if(check > 2) break;
 431                                         }
 432                                 }
 433                         }
 434                 }
 435         } else {
 436                 if(_kln89->_mode != KLN89_MODE_CRSR) _kln89->DrawText(_apt_id, 2, 1, 3);
 437                 if(_subPage == 0) {
 438                         /*
 439                         _kln89->DrawText("----.-", 2, 9, 3);
 440                         _kln89->DrawText("--------------", 2, 0, 2);
 441                         _kln89->DrawText("- -- --.--'", 2, 3, 1);
 442                         _kln89->DrawText("---- --.--'", 2, 3, 0);
 443                         _kln89->DrawSpecialChar(0, 2, 7, 1);
 444                         _kln89->DrawSpecialChar(0, 2, 7, 0);
 445                         */
 446                 }
 447         }
 448
 449         if(_kln89->_mode == KLN89_MODE_CRSR) {
 450                 if(!(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {
 451                         if(_uLinePos > 0 && _uLinePos < 5) {
 452                                 // TODO - blink as well
 453                                 _kln89->Underline(2, _uLinePos, 3, 1);
 454                         }
 455                         for(unsigned int i = 0; i < _apt_id.size(); ++i) {
 456                                 if(_uLinePos != (i + 1)) {
 457                                         _kln89->DrawChar(_apt_id[i], 2, i + 1, 3);
 458                                 } else {
 459                                         if(!_kln89->_blink) _kln89->DrawChar(_apt_id[i], 2, i + 1, 3);
 460                                 }
 461                         }
 462                 }
 463         }
 464
 465         _id = _apt_id;
 466
 467         KLN89Page::Update(dt);
 468 }
 469
 470 void KLN89AptPage::SetId(const string& s) {
 471         if(s != _apt_id || s != _last_apt_id) {
 472                 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.
 473                 /*
 474                         DCL: Hmmm - I wrote the comment above, but I don't quite understand it!
 475                         I'm not quite sure why I don't simply set _apt_id here (and NOT _last_apt_id)
 476                         and let the logic in Update(...) handle the airport details cache update.
 477                 */
 478         }
 479         _last_apt_id = _apt_id;
 480         _save_apt_id = _apt_id;
 481         _apt_id = s;
 482 }
 483
 484 // Update the cached airport details
 485 void KLN89AptPage::UpdateAirport(const string& id) {
 486         // Frequencies
 487         _aptFreqs.clear();
 488         ATCData ad;
 489         AptFreq aq;
 490         //cout << "UpdateAirport called, id = " << id << '\n';
 491         // TODO - the logic below only returns one service per type per airport - they can be on more than one freq though.
 492         if(current_commlist->FindByCode(id, ad, ATIS)) {
 493                 //cout << "Found ATIS\n";
 494                 aq.service = "ATIS*";
 495                 aq.freq = ad.freq;
 496                 _aptFreqs.push_back(aq);
 497         }
 498         if(current_commlist->FindByCode(id, ad, GROUND)) {
 499                 aq.service = "GRND*";
 500                 aq.freq = ad.freq;
 501                 _aptFreqs.push_back(aq);
 502         }
 503         if(current_commlist->FindByCode(id, ad, TOWER)) {
 504                 aq.service = "TWR *";
 505                 aq.freq = ad.freq;
 506                 _aptFreqs.push_back(aq);
 507         }
 508         if(current_commlist->FindByCode(id, ad, APPROACH)) {
 509                 aq.service = "APR";
 510                 aq.freq = ad.freq;
 511                 _aptFreqs.push_back(aq);
 512         }
 513         _nFreqPages = (unsigned int)ceil((float(_aptFreqs.size())) / 3.0f);
 514
 515         // Runways
 516         _aptRwys.clear();
 517   const FGAirport* apt = fgFindAirportID(id);
 518   assert(apt);
 519
 520   // build local array, longest runway first
 521   for (unsigned int r=0; r<apt->numRunways(); ++r) {
 522     FGRunway rwy(apt->getRunwayByIndex(r));
 523     if ((r > 0) && (rwy._length > _aptRwys.front()._length)) {
 524       _aptRwys.insert(_aptRwys.begin(), rwy);
 525     } else {
 526       _aptRwys.push_back(rwy);
 527     }
 528   }
 529
 530         _nRwyPages = (_aptRwys.size() + 1) / 2; // 2 runways per page.
 531         if(_nFreqPages < 1) _nFreqPages = 1;
 532         if(_nRwyPages < 1) _nRwyPages = 1;
 533
 534         // Instrument approaches
 535         // Only non-precision for now - TODO - handle precision approaches if necessary
 536         _iaps.clear();
 537         iap_map_iterator itr = _kln89->_np_iap.find(id);
 538         if(itr != _kln89->_np_iap.end()) {
 539                 _iaps = itr->second;
 540         }
 541         if(_subPage == 7) {
 542                 if(_iafDialog || _addDialog || _replaceDialog) {
 543                         // Eek - major logic error if an airport details cache update occurs
 544                         // with one of these dialogs active.
 545                         // TODO - output a warning.
 546                         //cout << "HELP!!!!!!!!!!\n";
 547                 } else {
 548                         _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!
 549                 }
 550         }
 551 }
 552
 553 void KLN89AptPage::CrsrPressed() {
 554         if(_kln89->_mode == KLN89_MODE_DISP) {
 555                 if(_subPage == 7) {
 556                         // Pressing crsr jumps back to vanilla IAP page.
 557                         _iafDialog = false;
 558                         _addDialog = false;
 559                         _replaceDialog = false;
 560                 }
 561                 return;
 562         }
 563         if(_kln89->_obsMode) {
 564                 _uLinePos = 0;
 565         } else {
 566                 _uLinePos = 1;
 567         }
 568         if(_subPage == 0) {
 569                 _maxULinePos = 32;
 570         } else if(_subPage == 7) {
 571                 // Don't *think* we need some of this since some of it we can only get to by pressing ENT, not CRSR.
 572                 if(_iafDialog) {
 573                         _maxULinePos = _IAF.size();
 574                         _uLinePos = 1;
 575                 } else if(_addDialog) {
 576                         _maxULinePos = 1;
 577                         _uLinePos = 1;
 578                 } else if(_replaceDialog) {
 579                         _maxULinePos = 1;
 580                         _uLinePos = 1;
 581                 } else {
 582                         _maxULinePos = 4 + _iaps.size();
 583                         if(_iaps.empty()) {
 584                                 _uLinePos = 1;
 585                         } else {
 586                                 _uLinePos = 5;
 587                         }
 588                 }
 589         } else {
 590                 _maxULinePos = 5;
 591         }
 592 }
 593
 594 void KLN89AptPage::ClrPressed() {
 595         if(_subPage == 1 && _uLinePos == 5) {
 596                 _to_flag = !_to_flag;
 597         } else if(_subPage == 7) {
 598                 // Clear backs out IAP selection one step at a time
 599                 if(_iafDialog) {
 600                         _iafDialog = false;
 601                         _maxULinePos = 4 + _iaps.size();
 602                         if(_iaps.empty()) {
 603                                 _uLinePos = 1;
 604                         } else {
 605                                 _uLinePos = 5;
 606                         }
 607                 } else if(_addDialog) {
 608                         _addDialog = false;
 609                         if(_IAF.size() > 1) {
 610                                 _iafDialog = true;
 611                                 _maxULinePos = 1;
 612                                 // Don't reset _curIaf since it is remembed.
 613                                 _uLinePos = 1 + _curIaf;        // TODO - make this robust to more than 3 IAF
 614                         } else {
 615                                 _maxULinePos = 4 + _iaps.size();
 616                                 if(_iaps.empty()) {
 617                                         _uLinePos = 1;
 618                                 } else {
 619                                         _uLinePos = 5;
 620                                 }
 621                         }
 622                 } else if(_replaceDialog) {
 623                         _replaceDialog = false;
 624                         _addDialog = true;
 625                         _maxULinePos = 1;
 626                         _uLinePos = 1;
 627                 }
 628         }
 629 }
 630
 631 void KLN89AptPage::EntPressed() {
 632         if(_entInvert) {
 633                 _entInvert = false;
 634                 _last_apt_id = _apt_id;
 635                 _apt_id = _save_apt_id;
 636         } else if(_subPage == 7 && _kln89->_mode == KLN89_MODE_CRSR && _uLinePos > 0) {
 637                 // We are selecting an approach
 638                 if(_iafDialog) {
 639                         if(_uLinePos > 0) {
 640                                 // Record the IAF that was picked
 641                                 if(_uLinePos == 3) {
 642                                         _curIaf = _IAF.size() - 1;
 643                                 } else {
 644                                         _curIaf = _uLinePos - 1 + _iafStart;
 645                                 }
 646                                 //cout << "_curIaf = " << _curIaf << '\n';
 647                                 // TODO - delete the waypoints inside _approachFP before clearing them!!!!!!!
 648                                 _kln89->_approachFP->waypoints.clear();
 649                                 GPSWaypoint* wp = new GPSWaypoint;
 650                                 *wp = *_IAF[_curIaf];   // Need to make copies here since we're going to alter ID and type sometimes
 651                                 string iafid = wp->id;
 652                                 //wp->id += 'i';
 653                                 _kln89->_approachFP->waypoints.push_back(wp);
 654                                 for(unsigned int i=0; i<_IAP.size(); ++i) {
 655                                         if(_IAP[i]->id != iafid) {      // Don't duplicate waypoints that are part of the initial fix list and the approach procedure list.
 656                         // FIXME - allow the same waypoint to be both the IAF and the FAF in some
 657                         // approaches that have a procedure turn eg. KDLL
 658                         // Also allow MAF to be the same as IAF!
 659                                                 wp = new GPSWaypoint;
 660                                                 *wp = *_IAP[i];
 661                                                 //cout << "Adding waypoint " << wp->id << ", type is " << wp->appType << '\n';
 662                                                 //if(wp->appType == GPS_FAF) wp->id += 'f';
 663                                                 //if(wp->appType == GPS_MAP) wp->id += 'm';
 664                                                 //cout << "New id = " << wp->id << '\n';
 665                                                 _kln89->_approachFP->waypoints.push_back(wp);
 666                                         }
 667                                 }
 668                                 // Only add 1 missed approach procedure waypoint for now.  I think this might be standard always anyway.
 669                                 wp = new GPSWaypoint;
 670                                 *wp = *_MAP[0];
 671                                 //wp->id += 'h';
 672                                 _kln89->_approachFP->waypoints.push_back(wp);
 673                                 _iafDialog = false;
 674                                 _addDialog = true;
 675                                 _maxULinePos = _kln89->_approachFP->waypoints.size() + 1;
 676                                 _uLinePos = _maxULinePos;
 677                         }
 678                 } else if(_addDialog) {
 679                         if(_uLinePos == _maxULinePos) {
 680                                 _addDialog = false;
 681                                 if(_kln89->ApproachLoaded()) {
 682                                         _replaceDialog = true;
 683                                         _uLinePos = 1;
 684                                         _maxULinePos = 1;
 685                                 } else {
 686                     // Now load the approach into the active flightplan.
 687                     // As far as I can tell, the rules are this:
 688                     // 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).
 689                     // If the airport is not in the flightplan, append the approach to the flightplan, even if it is closer than the current active leg,
 690                     // in which case reorientate to flightplan might put us on the approach, but unable to activate it.
 691                     // However, it appears from the sim as if this can indeed happen if the user is not carefull.
 692                     bool added = false;
 693                     for(unsigned int i=0; i<_kln89->_activeFP->waypoints.size(); ++i) {
 694                         if(_kln89->_activeFP->waypoints[i]->id == _apt_id) {
 695                             _kln89->_activeFP->waypoints.insert(_kln89->_activeFP->waypoints.begin()+i, _kln89->_approachFP->waypoints.begin(), _kln89->_approachFP->waypoints.end());
 696                             added = true;
 697                             break;
 698                         }
 699                     }
 700                     if(!added) {
 701                         _kln89->_activeFP->waypoints.insert(_kln89->_activeFP->waypoints.end(), _kln89->_approachFP->waypoints.begin(), _kln89->_approachFP->waypoints.end());
 702                     }
 703                                         _kln89->_approachID = _apt_id;
 704                                         _kln89->_approachAbbrev = _iaps[_curIap]->_abbrev;
 705                                         _kln89->_approachRwyStr = _iaps[_curIap]->_rwyStr;
 706                                         _kln89->_approachLoaded = true;
 707                                         //_kln89->_messageStack.push_back("*Press ALT To Set Baro");
 708                                         // Actually - this message is only sent when we go into appraoch-arm mode.
 709                                         // TODO - check the flightplan for consistency
 710                                         _kln89->OrientateToActiveFlightPlan();
 711                                         _kln89->_mode = KLN89_MODE_DISP;
 712                                         _kln89->_curPage = 7;
 713                                         _kln89->_activePage = _kln89->_pages[7];        // Do we need to clean up here at all before jumping?
 714                                 }
 715                         }
 716                 } else if(_replaceDialog) {
 717                         // TODO - load the approach!
 718                 } else if(_uLinePos > 4) {
 719                         _IAF.clear();
 720                         _IAP.clear();
 721                         _MAP.clear();
 722                         _curIaf = 0;
 723                         _IAF = ((FGNPIAP*)(_iaps[_uLinePos-5]))->_IAF;
 724                         _IAP = ((FGNPIAP*)(_iaps[_uLinePos-5]))->_IAP;
 725                         _MAP = ((FGNPIAP*)(_iaps[_uLinePos-5]))->_MAP;
 726                         _curIap = _uLinePos - 5;        // TODO - handle the start of list ! no. 1, and the end of list not sequential!
 727                         _uLinePos = 1;
 728                         if(_IAF.size() > 1) {
 729                                 // More than 1 IAF - display the selection dialog
 730                                 _iafDialog = true;
 731                                 _maxULinePos = _IAF.size();
 732                         } else {
 733                                 _addDialog = true;
 734                                 _maxULinePos = 1;
 735                         }
 736                 }
 737         }
 738 }
 739
 740 void KLN89AptPage::Knob1Left1() {
 741         if(_kln89->_mode == KLN89_MODE_CRSR && _subPage == 7 && _addDialog) {
 742                 if(_uLinePos == _maxULinePos) {
 743                         _uLinePos--;
 744                         if(_kln89->_approachFP->waypoints.size() > 1) _fStart = _kln89->_approachFP->waypoints.size() - 2;
 745                 } else if(_uLinePos == _maxULinePos - 1) {
 746                         _uLinePos--;
 747                 } else if(_uLinePos > 0) {
 748                         if(_fStart == 0) {
 749                                 _uLinePos--;
 750                         } else {
 751                                 _uLinePos--;
 752                                 _fStart--;
 753                         }
 754                 }
 755         } else {
 756                 KLN89Page::Knob1Left1();
 757         }
 758 }
 759
 760 void KLN89AptPage::Knob1Right1() {
 761         if(_kln89->_mode == KLN89_MODE_CRSR && _subPage == 7 && _addDialog) {
 762                 if(_uLinePos == _maxULinePos) {
 763                         // no-op
 764                 } else if(_uLinePos == _maxULinePos - 1) {
 765                         _uLinePos++;
 766                         _fStart = 0;
 767                 } else if(_uLinePos > 0) {
 768                         if(_fStart >= _kln89->_approachFP->waypoints.size() - 2) {
 769                                 _uLinePos++;
 770                         } else {
 771                                 _uLinePos++;
 772                                 _fStart++;
 773                         }
 774                 } else if(_uLinePos == 0) {
 775                         _uLinePos++;
 776                         _fStart = 0;
 777                 }
 778         } else {
 779                 KLN89Page::Knob1Right1();
 780         }
 781 }
 782
 783 void KLN89AptPage::Knob2Left1() {
 784         if(_kln89->_mode != KLN89_MODE_CRSR || _uLinePos == 0) {
 785                 if(_uLinePos == 0 && _kln89->_mode == KLN89_MODE_CRSR && _kln89->_obsMode) {
 786                         KLN89Page::Knob2Left1();
 787                 } else if(_subPage == 5) {
 788                         _subPage = 4;
 789                         _curFreqPage = _nFreqPages - 1;
 790                 } else if(_subPage == 4) {
 791                         // Freqency pages
 792                         if(_curFreqPage == 0) {
 793                                 _subPage = 3;
 794                                 _curRwyPage = _nRwyPages - 1;
 795                         } else {
 796                                 _curFreqPage--;
 797                         }
 798                 } else if(_subPage == 3) {
 799                         if(_curRwyPage == 0) {
 800                                 KLN89Page::Knob2Left1();
 801                         } else {
 802                                 _curRwyPage--;
 803                         }
 804                 } else {
 805                         KLN89Page::Knob2Left1();
 806                 }
 807         } else {
 808                 if(_uLinePos < 5 && !(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {
 809                         // Same logic for all pages - set the ID
 810                         _apt_id = _apt_id.substr(0, _uLinePos);
 811                         // ASSERT(_uLinePos > 0);
 812                         if(_uLinePos == (_apt_id.size() + 1)) {
 813                                 _apt_id += '9';
 814                         } else {
 815                                 _apt_id[_uLinePos - 1] = _kln89->DecChar(_apt_id[_uLinePos - 1], (_uLinePos == 1 ? false : true));
 816                         }
 817                 } else {
 818                         if(_subPage == 0) {
 819                                 // TODO - set by name
 820                         } else {
 821                                 // NO-OP - to/fr is cycled by clr button
 822                         }
 823                 }
 824         }
 825 }
 826
 827 void KLN89AptPage::Knob2Right1() {
 828         if(_kln89->_mode != KLN89_MODE_CRSR || _uLinePos == 0) {
 829                 if(_uLinePos == 0 && _kln89->_mode == KLN89_MODE_CRSR && _kln89->_obsMode) {
 830                         KLN89Page::Knob2Right1();
 831                 } else if(_subPage == 2) {
 832                         _subPage = 3;
 833                         _curRwyPage = 0;
 834                 } else if(_subPage == 3) {
 835                         if(_curRwyPage == _nRwyPages - 1) {
 836                                 _subPage = 4;
 837                                 _curFreqPage = 0;
 838                         } else {
 839                                 _curRwyPage++;
 840                         }
 841                 } else if(_subPage == 4) {
 842                         if(_curFreqPage == _nFreqPages - 1) {
 843                                 _subPage = 5;
 844                         } else {
 845                                 _curFreqPage++;
 846                         }
 847                 } else {
 848                         KLN89Page::Knob2Right1();
 849                 }
 850         } else {
 851                 if(_uLinePos < 5 && !(_subPage == 7 && (_iafDialog || _addDialog || _replaceDialog))) {
 852                         // Same logic for all pages - set the ID
 853                         _apt_id = _apt_id.substr(0, _uLinePos);
 854                         // ASSERT(_uLinePos > 0);
 855                         if(_uLinePos == (_apt_id.size() + 1)) {
 856                                 _apt_id += 'A';
 857                         } else {
 858                                 _apt_id[_uLinePos - 1] = _kln89->IncChar(_apt_id[_uLinePos - 1], (_uLinePos == 1 ? false : true));
 859                         }
 860                 } else {
 861                         if(_subPage == 0) {
 862                                 // TODO - set by name
 863                         } else {
 864                                 // NO-OP - to/fr is cycled by clr button
 865                         }
 866                 }
 867         }
 868 }