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