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