src/Instrumentation/KLN89/kln89_page_fpl.cxx

   1 // kln89_page_*.[ch]xx - this file is one of the "pages" that
   2 //                       are used in the KLN89 GPS unit simulation.
   3 //
   4 // Written by David Luff, started 2005.
   5 //
   6 // Copyright (C) 2005 - David C Luff - david.luff@nottingham.ac.uk
   7 //
   8 // This program is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU General Public License as
  10 // published by the Free Software Foundation; either version 2 of the
  11 // License, or (at your option) any later version.
  12 //
  13 // This program is distributed in the hope that it will be useful, but
  14 // WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the Free Software
  20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  21 //
  22 // $Id$
  23
  24 #ifdef HAVE_CONFIG_H
  25 #  include "config.h"
  26 #endif
  27
  28 #include "kln89_page_fpl.hxx"
  29 #include <algorithm>
  30
  31 using namespace std;
  32
  33 KLN89FplPage::KLN89FplPage(KLN89* parent)
  34 : KLN89Page(parent) {
  35         _nSubPages = 26;
  36         _subPage = 0;
  37         _name = "FPL";
  38         _fpMode = 0;
  39         _actFpMode = 0;
  40         _wLinePos = 0;
  41         _bEntWp = false;
  42         _bEntExp = false;
  43         _entWp = NULL;
  44         _fplPos = 0;
  45         _resetFplPos0 = true;
  46         _delFP = false;
  47         _delWp = false;
  48         _delAppr = false;
  49         _changeAppr = false;
  50         _fp0SelWpId = "";
  51 }
  52
  53 KLN89FplPage::~KLN89FplPage() {
  54 }
  55
  56 void KLN89FplPage::Update(double dt) {
  57         Calc();
  58
  59         // NOTE - we need to draw the active leg arrow outside of this block to avoid the _delFP check.
  60         // TODO - we really ought to merge the page 0 and other pages drawing code with a couple of lines of extra logic.
  61         if(_subPage == 0 && !_delFP) {  // Note that in the _delFP case, the active flightplan gets a header, and hence the same geometry as the other fps, so we draw it there.
  62                 // active FlightPlan
  63                 // NOTE THAT FOR THE ACTIVE FLIGHT PLAN, TOP POSITION IS STILL 4 in the underline position scheme, to make
  64                 // copy and paste easier!!!!
  65
  66                 // ---------------------------------- Copy the active FlightPlan and insert approach header and fence if required ---------------
  67                 // For synatical convienience
  68                 //vector<GPSWaypoint*> waylist = _kln89->_flightPlans[_subPage]->waypoints;
  69                 // Copy every waypoint for now.
  70         // This is inefficient, but allows us to insert dummy waypoints to represent the header and fence
  71                 // in our *local copy* of the flightplan, if an approach is loaded.  There must be a better way to do this!!!!
  72                 //cout << "AA" << endl;
  73                 vector<GPSWaypoint> waylist;
  74                 for(unsigned int i=0; i<_kln89->_flightPlans[_subPage]->waypoints.size(); ++i) {
  75                         waylist.push_back(*_kln89->_flightPlans[_subPage]->waypoints[i]);
  76                 }
  77                 //cout << "BB" << endl;
  78                 _hdrPos = -1;
  79                 _fencePos = -1;
  80                 if(_kln89->_approachLoaded) {
  81                         GPSWaypoint wp;
  82                         wp.id = "HHHH";
  83                         wp.type = GPS_WP_VIRT;
  84                         wp.appType = GPS_HDR;
  85                         //cout << "CC" << endl;
  86                         for(unsigned int i=0; i<waylist.size(); ++i) {
  87                                 // Insert the hdr immediately before the IAF
  88                                 if(waylist[i].appType == GPS_IAF) {
  89                                         waylist.insert(waylist.begin()+i, wp);
  90                                         // Need to insert empty string into the params to keep them in sync
  91                                         _params.insert(_params.begin()+i-1, "");
  92                                         _hdrPos = i;
  93                                         break;
  94                                 }
  95                         }
  96                         //cout << "DD" << endl;
  97                         wp.id = "FFFF";
  98                         wp.type = GPS_WP_VIRT;
  99                         wp.appType = GPS_FENCE;
 100                         for(unsigned int i=0; i<waylist.size(); ++i) {
 101                                 // Insert the fence between the MAF and the MAP
 102                                 if(waylist[i].appType == GPS_MAHP) {
 103                                         waylist.insert(waylist.begin()+i, wp);
 104                                         // Need to insert empty string into the params to keep them in sync
 105                                         _params.insert(_params.begin()+i-1, "");
 106                                         _fencePos = i;
 107                                         break;
 108                                 }
 109                         }
 110                 }
 111                 /*
 112                 // Now make up a vector of waypoint numbers, since they aren't aligned with list position anymore
 113                 int num = 0;
 114                 vector<int> numlist;
 115                 numlist.clear();
 116                 for(unsigned int i=0; i<waylist.size(); ++i) {
 117                         if(waylist[i].appType != GPS_HDR && waylist[i].appType != GPS_FENCE) {
 118                                 numlist.push_back(num);
 119                                 num++;
 120                         } else {
 121                                 numlist.push_back(-1);
 122                         }
 123                 }
 124                 */
 125                 int hfcount = 0;
 126                 for(unsigned int i=0; i<waylist.size(); ++i) {
 127                         //cout << i + 1 - hfcount << ":  ID= " << waylist[i].id;
 128                         if(waylist[i].appType == GPS_HDR) {
 129                                 hfcount++;
 130                                 //cout << " HDR!";
 131                         }
 132                         if(waylist[i].appType == GPS_FENCE) {
 133                                 hfcount++;
 134                                 //cout << " FENCE!";
 135                         }
 136                         //cout << '\n';
 137                 }
 138                 //----------------------------------------- end active FP copy ------------------------------------------------
 139
 140                 // Recalculate which waypoint is displayed at the top of the list if required (generally if this page has lost focus).
 141                 int idx = _parent->GetActiveWaypointIndex();
 142                 if(_resetFplPos0) {
 143                         if(waylist.size() <= 1) {
 144                                 _fplPos = 0;
 145                         } else if(waylist.size() <= 4) {
 146                                 _fplPos = 1;
 147                         } else {
 148                                 // Make the active waypoint the second WP displayed
 149                                 _fplPos = idx;
 150                                 if(_fplPos != 0) {
 151                                         _fplPos--;
 152                                 }
 153                         }
 154                         //cout << "HeaderPos = " << _hdrPos << ", fencePos = " << _fencePos << ", _fplPos = " << _fplPos << ", active waypoint index = " << _parent->GetActiveWaypointIndex() << '\n';
 155                         if(_hdrPos >= 0 && idx >= _hdrPos) {
 156                                 _fplPos++;
 157                                 if(_fencePos >= 0 && (idx + 1) >= _fencePos) {
 158                                         _fplPos++;
 159                                 }
 160                         }
 161                         _resetFplPos0 = false;
 162                 }
 163
 164                 // Increment the active waypoint position if required due hdr and fence here not above so it gets called every frame
 165                 if(_hdrPos >= 0 && idx >= _hdrPos) {
 166                         idx++;
 167                         if(_fencePos >= 0 && idx >= _fencePos) {
 168                                 idx++;
 169                         }
 170                 }
 171
 172                 // Draw the leg arrow etc
 173                 int diff = idx - (int)_fplPos;
 174                 int drawPos = -1;
 175                 if(idx < 0) {
 176                         // No active waypoint
 177                 } else if(diff < 0) {
 178                         // Off screen to the top
 179                 } else if(diff > 2) {
 180                         // TODO !
 181                 } else {
 182                         drawPos = diff;
 183                 }
 184                 // Only the head is blinked during waypoint alerting
 185                 if(!(_kln89->_waypointAlert && _kln89->_blink)) {
 186                         _kln89->DrawSpecialChar(4, 2, 0, 3-drawPos);
 187                 }
 188                 // If the active waypoint is immediately after an approach header then we need to do an extra-long tail leg
 189                 if(_hdrPos >= 0 && idx == _hdrPos + 1) {
 190                         if(drawPos > 0 && !_kln89->_dto) _kln89->DrawLongLegTail(3-drawPos);
 191                 } else {
 192                         if(drawPos > 0 && !_kln89->_dto) _kln89->DrawLegTail(3-drawPos);
 193                 }
 194
 195                 //cout << "Top pos is " << _fplPos0 << ' ';
 196
 197                 if(_kln89->_mode == KLN89_MODE_CRSR) {
 198                         if(_uLinePos == 3) {
 199                                 _kln89->Underline(2, 13, 3, 3);
 200                         } else if(_uLinePos >= 4) {
 201                                 if(_bEntWp) {
 202                                         if(_wLinePos == 0) {
 203                                                 _kln89->Underline(2, 5, 3 - (_uLinePos - 4), 4);
 204                                         } else if(_wLinePos == 4) {
 205                                                 _kln89->Underline(2, 4, 3 - (_uLinePos - 4), 4);
 206                                         } else {
 207                                                 _kln89->Underline(2, 4, 3 - (_uLinePos - 4), _wLinePos);
 208                                                 _kln89->Underline(2, 5 + _wLinePos, 3 - (_uLinePos - 4), 4 - _wLinePos);
 209                                         }
 210                                         if(!_kln89->_blink) {
 211                                                 //_kln89->DrawText(_entWp->id, 2, 4, 2 - (_uLinePos - 4), false, _wLinePos);
 212                                                 _kln89->DrawEnt();
 213                                         }
 214                                 } else {
 215                                         _kln89->Underline(2, 4, 3 - (_uLinePos - 4), 5);
 216                                 }
 217                         }
 218                 }
 219                 // ----------------------------------
 220                 //cout << "A1" << endl;
 221
 222                 // Sanity check the top position - remember that we can have an extra blank one at the bottom even if CRSR is off if crsr is switched on then off
 223                 if((int)_fplPos > ((int)waylist.size()) - 3) _fplPos = (((int)waylist.size()) - 3 < 0 ? 0 : waylist.size() - 3);
 224                 unsigned int last_pos;
 225                 if(waylist.empty()) {
 226                         last_pos = 0;
 227                 } else {
 228                         last_pos = ((int)_fplPos == ((int)waylist.size()) - 3 ? waylist.size() : waylist.size() - 1);
 229                 }
 230                 //cout << "Initialising last_pos, last_pos = " << last_pos << '\n';
 231                 //cout << "B1" << endl;
 232                 if(waylist.size() < 4) last_pos = waylist.size();
 233
 234                 // Don't draw the cyclic field header if the top waypoint is the approach header
 235                 // Not sure if this also applies to the fence - don't think so but TODO - check!
 236                 if(waylist[_fplPos].appType != GPS_HDR) {
 237                         _kln89->DrawChar('>', 2, 12, 3);
 238                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == 3 && _kln89->_blink)) {
 239                                 DrawFpMode(3);
 240                         }
 241                 }
 242
 243                 // ACTIVE
 244                 for(unsigned int i=0; i<4; ++i) {
 245                         //cout << "F1... " << i << endl;
 246                         // Don't draw the waypoint number for the header or fence
 247                         //cout << "_fplPos0 = " << _fplPos0 << ", waylist size is " << waylist.size() << '\n';
 248                         //cout << "F1, i = " << i << ", way id = " << waylist[_fplPos0+i].id << '\n';
 249                         if((waylist[_fplPos+i].appType == GPS_HDR || waylist[_fplPos+i].appType == GPS_FENCE)
 250                             && i != 3) {        // By definition, the header and fence lines can't be displayed on the last line hence the unconditional !i==3 is safe.
 251                                 // no-op
 252                                 //cout << "NOOP\n";
 253                         } else {
 254                                 int n = (i < 3 ? _fplPos + i + 1 : last_pos + 1);
 255                                 if(_kln89->_approachLoaded) {
 256                                         if(n > _hdrPos) --n;
 257                                         if(n > _fencePos) --n;
 258                                 }
 259                                 string s = GPSitoa(n);
 260                                 // Don't draw the colon for waypoints that are part of the published approach
 261                                 if(waylist[_fplPos+i].appType == GPS_APP_NONE) {
 262                                         s += ':';
 263                                 }
 264                                 if(!(_delWp && _uLinePos == i+4)) _kln89->DrawText(s, 2, 4 - (s[s.size()-1] == ':' ? s.size() : s.size()+1), 3 - i);
 265                         }
 266                         //cout << "F1 done!\n";
 267                         bool drawID = true;
 268                         if(_delWp && _uLinePos == i+4) {
 269                                 if(!_kln89->_blink) {
 270                                         _kln89->DrawText("Del", 2, 0, 3-i);
 271                                         _kln89->DrawChar('?', 2, 10, 3-i);
 272                                         _kln89->Underline(2, 0, 3-i, 11);
 273                                         _kln89->DrawEnt();
 274                                 }
 275                         } else if(_kln89->_mode == KLN89_MODE_CRSR && _bEntWp && _uLinePos == i+4) {
 276                                 if(!_kln89->_blink) {
 277                                         if(_wLinePos >= _entWp->id.size()) {
 278                                                 _kln89->DrawText(_entWp->id, 2, 4, 3-i);
 279                                                 _kln89->DrawChar(' ', 2, 4+_wLinePos, 3-i, false, true);
 280                                         } else {
 281                                                 _kln89->DrawText(_entWp->id.substr(0, _wLinePos), 2, 4, 3-i);
 282                                                 _kln89->DrawChar(_entWp->id[_wLinePos], 2, 4+_wLinePos, 3-i, false, true);
 283                                                 _kln89->DrawText(_entWp->id.substr(_wLinePos+1, _entWp->id.size()-_wLinePos-1), 2, 5+_wLinePos, 3-i);
 284                                         }
 285                                 }
 286                                 drawID = false;
 287                         }
 288                         //cout << "F2" << endl;
 289                         if(drawID) {
 290                                 //cout << "F2a" << endl;
 291                                 if(i == 3 || _fplPos + i == waylist.size()) {
 292                                         //cout << "F2a1" << endl;
 293                                         //cout << "_uLinePos = " << _uLinePos << ", i = " << i << ", waylist.size() = " << waylist.size() << endl;
 294                                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == (i + 4) && _kln89->_blink)) {
 295                                                 //cout << "Drawing underline..." << endl;
 296                                                 _kln89->DrawText(last_pos < waylist.size() ? waylist[last_pos].GetAprId() : "_____", 2, 4, 3-i);
 297                                                 //cout << "2" << endl;
 298                                         }
 299                                         //cout << "3" << endl;
 300                                         //cout << "last_pos = " << last_pos << endl;
 301                                         if(last_pos > 0 && last_pos < waylist.size() && i > 0) {
 302                                                 //cout << "4" << endl;
 303                                                 // Draw the param
 304                                                 if(_actFpMode == 0) {
 305                                                         string s = _params[last_pos - 1];
 306                                                         _kln89->DrawText(s, 2, 16-s.size(), 3-i);
 307                                                 } else if(_actFpMode == 3) {
 308                                                         string s = _params[last_pos - 1];
 309                                                         _kln89->DrawText(s, 2, 15-s.size(), 3-i);
 310                                                         _kln89->DrawSpecialChar(0, 2, 15, 3-i);
 311                                                 }
 312                                                 //cout << "5" << endl;
 313                                         }
 314                                         //cout << "6" << endl;
 315                                         break;
 316                                 } else {
 317                                         //cout << "F2a2" << endl;
 318                                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == (i + 4) && _kln89->_blink)) {
 319                                                 if(waylist[_fplPos+i].appType == GPS_HDR) {
 320                                                         if(_delAppr) {
 321                                                                 _kln89->DrawText("DELETE APPR?", 2, 1, 3-i);
 322                                                         } else if(_changeAppr) {
 323                                                                 _kln89->DrawText("CHANGE APPR?", 2, 1, 3-i);
 324                                                         } else {
 325                                                                 _kln89->DrawText(_kln89->_approachAbbrev, 2, 1, 3-i);
 326                                                                 _kln89->DrawText(_kln89->_approachRwyStr, 2, 7, 3-i);
 327                                                                 _kln89->DrawText(_kln89->_approachID, 2, 12, 3-i);
 328                                                         }
 329                                                 } else if(waylist[_fplPos+i].appType == GPS_FENCE) {
 330                                                         _kln89->DrawText("*NO WPT SEQ", 2, 0, 3-i);
 331                                                 } else {
 332                                                         _kln89->DrawText(waylist[_fplPos+i].GetAprId(), 2, 4, 3-i);
 333                                                 }
 334                                         }
 335                                 }
 336                                 //cout << "F2b" << endl;
 337                                 if(i > 0) {
 338                                         // Draw the param
 339                                         //cout << "i > 0 param draw...\n";
 340                                         if(_actFpMode == 0) {
 341                                                 string s = _params[_fplPos + i - 1];
 342                                                 _kln89->DrawText(s, 2, 16-s.size(), 3-i);
 343                                         } else if(_actFpMode == 3) {
 344                                                 string s = _params[_fplPos + i - 1];
 345                                                 _kln89->DrawText(s, 2, 15-s.size(), 3-i);
 346                                                 _kln89->DrawSpecialChar(0, 2, 15, 3-i);
 347                                         }
 348                                 }
 349                                 //cout << "F2c" << endl;
 350                         }
 351                         //cout << "F3" << endl;
 352                 }
 353                 //cout << "GGGGGG" << endl;
 354         } else {  // Not active flightplan
 355                 //cout << "Top pos is " << _fplPos << ' ';
 356                 // For synatical convienience
 357                 //int nWp = (_subPage == 0 && !_delFP ? 4 : 3); // number of waypoints to display
 358                 vector<GPSWaypoint*> waylist = _kln89->_flightPlans[_subPage]->waypoints;
 359                 if(waylist.empty()) {
 360                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == 1 && _kln89->_blink)) {
 361                                 _kln89->DrawText(_delFP ? "Delete FPL?" : "Copy FPL 0?", 2, 0, 3);
 362                         }
 363                 } else {
 364                         if(!(_kln89->_mode == KLN89_MODE_CRSR && (_uLinePos == 1 || _uLinePos == 2) && _kln89->_blink)) {
 365                                 _kln89->DrawText(_delFP ? "Delete FPL?" : "Use?", 2, 0, 3);
 366                         }
 367                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == 2 && _kln89->_blink)) {
 368                                 if(!_delFP) _kln89->DrawText("Inverted?", 2, 5, 3);
 369                         }
 370                 }
 371
 372                 // ----------------------------------
 373                 if(_kln89->_mode == KLN89_MODE_CRSR) {
 374                         if(_uLinePos == 1) {
 375                                 if(!_kln89->_blink) {
 376                                         _kln89->Underline(2, 0, 3, (waylist.empty() || _delFP ? 11 : 4));       // This underline is blinked
 377                                         _kln89->DrawEnt();
 378                                 }
 379                         } else if(_uLinePos == 2) {
 380                                 // assert(!waylist.empty());
 381                                 if(!_kln89->_blink) {
 382                                         _kln89->Underline(2, 0, 3, 14); // This underline is blinked
 383                                         _kln89->DrawEnt();
 384                                 }
 385                         } else if(_uLinePos == 3) {
 386                                 _kln89->Underline(2, 13, 2, 3);
 387                         } else if(_uLinePos >= 4) {
 388                                 if(_bEntWp) {
 389                                         if(_wLinePos == 0) {
 390                                                 _kln89->Underline(2, 5, 2 - (_uLinePos - 4), 4);
 391                                         } else if(_wLinePos == 4) {
 392                                                 _kln89->Underline(2, 4, 2 - (_uLinePos - 4), 4);
 393                                         } else {
 394                                                 _kln89->Underline(2, 4, 2 - (_uLinePos - 4), _wLinePos);
 395                                                 _kln89->Underline(2, 5 + _wLinePos, 2 - (_uLinePos - 4), 4 - _wLinePos);
 396                                         }
 397                                         if(!_kln89->_blink) {
 398                                                 //_kln89->DrawText(_entWp->id, 2, 4, 2 - (_uLinePos - 4), false, _wLinePos);
 399                                                 _kln89->DrawEnt();
 400                                         }
 401                                 } else {
 402                                         if(!_delWp) _kln89->Underline(2, 4, 2 - (_uLinePos - 4), 5);
 403                                 }
 404                         }
 405                 }
 406                 // ----------------------------------
 407
 408                 _kln89->DrawChar('>', 2, 12, 2);
 409                 if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == 3 && _kln89->_blink)) DrawFpMode(2);
 410                 // Sanity check the top position - remember that we can have an extra blank one at the bottom even if CRSR is off if crsr is switched on then off
 411                 if((int)_fplPos > ((int)waylist.size()) - 2) _fplPos = (((int)waylist.size()) - 2 < 0 ? 0 : waylist.size() - 2);
 412                 unsigned int last_pos;
 413                 if(waylist.empty()) {
 414                         last_pos = 0;
 415                 } else {
 416                         last_pos = ((int)_fplPos == ((int)waylist.size()) - 2 ? waylist.size() : waylist.size() - 1);
 417                 }
 418                 if(waylist.size() < 3) last_pos = waylist.size();
 419                 for(unsigned int i=0; i<3; ++i) {
 420                         string s = GPSitoa(i < 2 ? _fplPos + i + 1 : last_pos + 1);
 421                         s += ':';
 422                         if(!(_delWp && _uLinePos == i+4)) _kln89->DrawText(s, 2, 4 - s.size(), 2 - i);
 423                         bool drawID = true;
 424                         if(_delWp && _uLinePos == i+4) {
 425                                 if(!_kln89->_blink) {
 426                                         _kln89->DrawText("Del", 2, 0, 2-i);
 427                                         _kln89->DrawChar('?', 2, 10, 2-i);
 428                                         _kln89->Underline(2, 0, 2-i, 11);
 429                                         _kln89->DrawEnt();
 430                                 }
 431                         } else if(_kln89->_mode == KLN89_MODE_CRSR && _bEntWp && _uLinePos == i+4) {
 432                                 if(!_kln89->_blink) {
 433                                         if(_wLinePos >= _entWp->id.size()) {
 434                                                 _kln89->DrawText(_entWp->id, 2, 4, 2-i);
 435                                                 _kln89->DrawChar(' ', 2, 4+_wLinePos, 2-i, false, true);
 436                                         } else {
 437                                                 _kln89->DrawText(_entWp->id.substr(0, _wLinePos), 2, 4, 2-i);
 438                                                 _kln89->DrawChar(_entWp->id[_wLinePos], 2, 4+_wLinePos, 2-i, false, true);
 439                                                 _kln89->DrawText(_entWp->id.substr(_wLinePos+1, _entWp->id.size()-_wLinePos-1), 2, 5+_wLinePos, 2-i);
 440                                         }
 441                                 }
 442                                 drawID = false;
 443                         }
 444                         if(drawID) {
 445                                 if(i == 2 || _fplPos + i == waylist.size()) {
 446                                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == (i + 4) && _kln89->_blink)) {
 447                                                 _kln89->DrawText(last_pos < waylist.size() ? waylist[last_pos]->id : "_____", 2, 4, 2-i);
 448                                         }
 449                                         if(last_pos > 0 && last_pos < waylist.size() && i > 0) {
 450                                                 // Draw the param
 451                                                 if(_fpMode == 0) {
 452                                                         string s = _params[last_pos - 1];
 453                                                         _kln89->DrawText(s, 2, 16-s.size(), 2-i);
 454                                                 }
 455                                         }
 456                                         break;
 457                                 } else {
 458                                         if(!(_kln89->_mode == KLN89_MODE_CRSR && _uLinePos == (i + 4) && _kln89->_blink)) {
 459                                                 _kln89->DrawText(waylist[_fplPos+i]->id, 2, 4, 2-i);
 460                                         }
 461                                         if(i > 0) {
 462                                                 // Draw the param
 463                                                 if(_fpMode == 0) {
 464                                                         string s = _params[_fplPos + i - 1];
 465                                                         _kln89->DrawText(s, 2, 16-s.size(), 2-i);
 466                                                 }
 467                                         }
 468                                 }
 469                         }
 470                 }
 471         }
 472
 473         KLN89Page::Update(dt);
 474 }
 475
 476 void KLN89FplPage::DrawFpMode(int ypos) {
 477         string s = "Dis";
 478         if(0 == _subPage) {
 479                 if(_actFpMode == 1) {
 480                         s = "ETE";
 481                 } else if(_actFpMode == 2) {
 482                         s = "UTC";      // TODO - alter depending on chosen timezone
 483                 } else if(_actFpMode == 3) {
 484                         s = (_kln89->_obsMode ? "OBS" : "Dtk");
 485                 }
 486         } else {
 487                 if(_fpMode == 1) {
 488                         s = "Dtk";
 489                 }
 490         }
 491         _kln89->DrawText(s, 2, 13, ypos);
 492 }
 493
 494 // Bit of an ipsy-dipsy function this one - calc the required parameters for the displayed flightplan.
 495 void KLN89FplPage::Calc() {
 496         _params.clear();
 497         GPSFlightPlan* fp = _kln89->_flightPlans[_subPage];
 498         vector<GPSWaypoint*> wv = fp->waypoints;
 499         if(0 == _subPage) {
 500                 // Active FP - parameters are only displayed for the active waypoint onwards for the active plan,
 501                 // and distance is cumulative from the user position.
 502                 if(0 == _actFpMode) {
 503                         // Dis
 504                         double cum_tot = 0.0;
 505                         if(wv.size() > 0) {
 506                                 //cum_tot += _kln89->GetHorizontalSeparation(_kln89->_gpsLat, _kln89->_gpsLon, wv[0]->lat, wv[0]->lon) * SG_METER_TO_NM;
 507                                 cum_tot += _kln89->GetGreatCircleDistance(_kln89->_gpsLat, _kln89->_gpsLon, wv[0]->lat, wv[0]->lon);
 508                         }
 509                         for(unsigned int i=1; i<wv.size(); ++i) {
 510                                 //cum_tot += _kln89->GetHorizontalSeparation(wv[i-1]->lat, wv[i-1]->lon, wv[i]->lat, wv[i]->lon) * SG_METER_TO_NM;      // TODO - add units switch!
 511                                 cum_tot += _kln89->GetGreatCircleDistance(wv[i-1]->lat, wv[i-1]->lon, wv[i]->lat, wv[i]->lon);  // TODO - add units switch!
 512                                 int n = (int)(cum_tot + 0.5);
 513                                 _params.push_back(GPSitoa(n));
 514                         }
 515                 } else if(1 == _actFpMode) {
 516                 } else if(2 == _actFpMode) {
 517                 } else {
 518                         // Dtk
 519                         for(int i=1; i<wv.size(); ++i) {
 520                                 double dtk = _kln89->GetMagHeadingFromTo(wv[i-1]->lat, wv[i-1]->lon, wv[i]->lat, wv[i]->lon);
 521                                 int n = (int)(dtk + 0.5);
 522                                 _params.push_back(GPSitoa(n));
 523                         }
 524
 525                 }
 526         } else {
 527                 // other FPs
 528                 if(0 == _fpMode) {
 529                         double cum_tot = 0.0;
 530                         for(int i=1; i<wv.size(); ++i) {
 531                                 //cum_tot += _kln89->GetHorizontalSeparation(wv[i-1]->lat, wv[i-1]->lon, wv[i]->lat, wv[i]->lon) * SG_METER_TO_NM;      // TODO - add units switch!
 532                                 cum_tot += _kln89->GetGreatCircleDistance(wv[i-1]->lat, wv[i-1]->lon, wv[i]->lat, wv[i]->lon);  // TODO - add units switch!
 533                                 int n = (int)(cum_tot + 0.5);
 534                                 _params.push_back(GPSitoa(n));
 535                         }
 536                 } else {
 537                 }
 538         }
 539 }
 540
 541 void KLN89FplPage::CrsrPressed() {
 542         if(_delFP) {
 543                 _delFP = false;
 544                 _kln89->_mode = KLN89_MODE_DISP;
 545                 return;
 546         }
 547
 548         _wLinePos = 0;
 549         if(_kln89->_mode == KLN89_MODE_DISP) {
 550                 _fp0SelWpId.clear();
 551                 if(_bEntWp) {
 552                         for(unsigned int i = 0; i < _kln89->_flightPlans[_subPage]->waypoints.size(); ++i) {
 553                                 if(_kln89->_flightPlans[_subPage]->waypoints[i] == _entWp) {
 554                                         _kln89->_flightPlans[_subPage]->waypoints.erase(_kln89->_flightPlans[_subPage]->waypoints.begin() + i);
 555                                 }
 556                         }
 557                         delete _entWp;
 558                         _entWp = NULL;
 559                         _bEntWp = false;
 560                         _entWpStr.clear();
 561                 }
 562         } else {
 563                 if(_kln89->_obsMode) {
 564                         _uLinePos = 0;
 565                 } else {
 566                         if(_kln89->_flightPlans[_subPage]->IsEmpty()) {
 567                                 _uLinePos = 4;
 568                         } else {
 569                                 _uLinePos = (_subPage == 0 ? 3 : 1);
 570                         }
 571                 }
 572         }
 573 }
 574
 575 void KLN89FplPage::ClrPressed() {
 576         if(_delFP) {
 577                 _kln89->_mode = KLN89_MODE_DISP;
 578                 _delFP = false;
 579         } else if(_delAppr) {
 580                 _kln89->_mode = KLN89_MODE_DISP;
 581                 _delAppr = false;
 582         } else {
 583                 if(KLN89_MODE_CRSR == _kln89->_mode) {
 584                         // TODO - see if we need to delete a waypoint
 585                         if(_uLinePos >= 4) {
 586                                 if(_delWp) {
 587                                         _kln89->_mode = KLN89_MODE_DISP;
 588                                         _delWp = false;
 589                                 } else {
 590                                         // First check that we're not trying to delete an approach waypoint.  Note that we can delete the approach by deleting the header though.
 591                                         // Check for approach waypoints or header/fences in flightplan 0
 592                                         int n = _fplPos + _uLinePos - 4;
 593                                         bool hdrPos = false;
 594                                         bool fencePos = false;
 595                                         //cout << "_fplPos = " << _fplPos << ", _uLinePos = " << _uLinePos << ", n = " << n << ", _hdrPos = " << _hdrPos << ", _fencePos = " << _fencePos << '\n';
 596                                         if(n == _hdrPos) {
 597                                                 //cout << "HEADER POS\n";
 598                                                 hdrPos = true;
 599                                         }
 600                                         if(n == _fencePos) {
 601                                                 //cout << "FENCE POS\n";
 602                                                 fencePos = true;
 603                                         }
 604                                         if(_hdrPos >= 0 && n > _hdrPos) --n;
 605                                         if(_fencePos >= 0 && n >= _fencePos) --n;       // This one needs to be >= since n is already decremented by 1 in the line above!
 606                                         //cout << "New n = " << n << '\n';
 607                                         if(hdrPos) {
 608                                                 //cout << "HDRP\n";
 609                                                 _delAppr = true;
 610                                         } else if(fencePos) {
 611                                                 //cout << "FENP\n";
 612                                                 // no-op
 613                                         } else if(n >= _kln89->_flightPlans[_subPage]->waypoints.size()) {
 614                                                 // no-op - off the end of the list on the entry field
 615                                         } else if(_kln89->_flightPlans[_subPage]->waypoints[n]->appType == GPS_APP_NONE) {
 616                                                 //cout << "DELFP\n";
 617                                                 _kln89->_mode = KLN89_MODE_CRSR;
 618                                                 _delWp = true;
 619                                         } else {
 620                                                 ShowScratchpadMessage("Invald", " Del  ");
 621                                         }
 622                                 }
 623                         } else if(_uLinePos == 3) {
 624                                 if(_subPage == 0) {
 625                                         _actFpMode++;
 626                                         if(_actFpMode > 3) _actFpMode = 0;
 627                                 } else {
 628                                         _fpMode++;
 629                                         if(_fpMode > 1) _fpMode = 0;
 630                                 }
 631                         }
 632                 } else {
 633                         _delFP = true;
 634                         _uLinePos = 1;
 635                         _kln89->_mode = KLN89_MODE_CRSR;
 636                 }
 637         }
 638 }
 639
 640 void KLN89FplPage::CleanUp() {
 641         // TODO - possibly need to clean up _delWp here as well, since it goes off if dto and then ent are pressed.
 642
 643         _bEntWp = false;
 644         for(unsigned int i = 0; i < _kln89->_flightPlans[_subPage]->waypoints.size(); ++i) {
 645                 if(_kln89->_flightPlans[_subPage]->waypoints[i] == _entWp) {
 646                         _kln89->_flightPlans[_subPage]->waypoints.erase(_kln89->_flightPlans[_subPage]->waypoints.begin() + i);
 647                 }
 648         }
 649         delete _entWp;
 650         _entWp = NULL;
 651         _entWpStr.clear();
 652         KLN89Page::CleanUp();
 653 }
 654
 655 void KLN89FplPage::LooseFocus() {
 656         _fplPos = 0;
 657         _resetFplPos0 = true;
 658         _wLinePos = 0;
 659         _uLinePos = 0;
 660         _fp0SelWpId.clear();
 661         _scratchpadMsg = false;
 662 }
 663
 664 void KLN89FplPage::EntPressed() {
 665         if(_delFP) {
 666                 _parent->ClearFlightPlan(_subPage);
 667                 CrsrPressed();
 668         } else if(_delWp) {
 669                 int pos = _uLinePos - 4 + _fplPos;
 670                 // Sanity check - the calculated wp position should never be off the end of the waypoint list.
 671                 if(pos > _kln89->_flightPlans[_subPage]->waypoints.size() - 1) {
 672                         cout << "ERROR - _uLinePos too big in KLN89FplPage::EntPressed!\n";
 673                         return;
 674                 }
 675                 _kln89->_flightPlans[_subPage]->waypoints.erase(_kln89->_flightPlans[_subPage]->waypoints.begin() + pos);
 676                 _delWp = false;
 677                 // Do we need to re-calc _fplPos here?
 678         } else if(_bEntExp) {
 679                 _bEntWp = false;
 680                 _bEntExp = false;
 681                 _entWp = NULL;  // DON'T delete it! - it's been pushed onto the waypoint list at this point.
 682                 _entWpStr.clear();
 683                 _kln89->_cleanUpPage = -1;
 684                 _wLinePos = 0;
 685                 // TODO - in actual fact the previously underlined waypoint stays in the same position and underlined
 686                 // in some or possibly all circumstances - need to check this out and match it, but not too important
 687                 // for now.
 688         } else if(_bEntWp) {
 689                 if(_entWp != NULL) {
 690                         // TODO - should be able to get rid of this switch I think and use the enum values.
 691                         switch(_entWp->type) {
 692                         case GPS_WP_APT:
 693                                 _kln89->_activePage = _kln89->_pages[0];
 694                                 _kln89->_curPage = 0;
 695                                 ((KLN89Page*)_kln89->_pages[0])->SetEntInvert(true);
 696                                 break;
 697                         case GPS_WP_VOR:
 698                                 _kln89->_activePage = _kln89->_pages[1];
 699                                 _kln89->_curPage = 1;
 700                                 ((KLN89Page*)_kln89->_pages[1])->SetEntInvert(true);
 701                                 break;
 702                         case GPS_WP_NDB:
 703                                 _kln89->_activePage = _kln89->_pages[2];
 704                                 _kln89->_curPage = 2;
 705                                 ((KLN89Page*)_kln89->_pages[2])->SetEntInvert(true);
 706                                 break;
 707                         case GPS_WP_INT:
 708                                 _kln89->_activePage = _kln89->_pages[3];
 709                                 _kln89->_curPage = 3;
 710                                 ((KLN89Page*)_kln89->_pages[3])->SetEntInvert(true);
 711                                 break;
 712                         case GPS_WP_USR:
 713                                 _kln89->_activePage = _kln89->_pages[4];
 714                                 _kln89->_curPage = 4;
 715                                 ((KLN89Page*)_kln89->_pages[4])->SetEntInvert(true);
 716                                 break;
 717                         default:
 718                                 cout << "Error - unknown waypoint type found in KLN89::FplPage::EntPressed()\n";
 719                         }
 720                         _kln89->_activePage->SetId(_entWp->id);
 721                         _kln89->_entJump = 7;
 722                         _kln89->_cleanUpPage = 7;
 723                         _kln89->_entRestoreCrsr = true;
 724                         _kln89->_mode = KLN89_MODE_DISP;
 725                 }
 726                 _bEntExp = true;
 727         } else if(_uLinePos == 1) {
 728                 if(_kln89->_flightPlans[_subPage]->IsEmpty()) {
 729                         // Copy fpl 0
 730                         for(unsigned int i=0; i<_kln89->_flightPlans[0]->waypoints.size(); ++i) {
 731                                 GPSWaypoint* wp = new GPSWaypoint;
 732                                 *wp = *(_kln89->_flightPlans[0]->waypoints[i]);
 733                                 _kln89->_flightPlans[_subPage]->waypoints.push_back(wp);
 734                         }
 735                 } else {
 736                         // Use
 737                         _parent->ClearFlightPlan(0);
 738                         for(unsigned int i=0; i<_kln89->_flightPlans[_subPage]->waypoints.size(); ++i) {
 739                                 GPSWaypoint* wp = new GPSWaypoint;
 740                                 *wp = *(_kln89->_flightPlans[_subPage]->waypoints[i]);
 741                                 _kln89->_flightPlans[0]->waypoints.push_back(wp);
 742                         }
 743                         _kln89->OrientateToActiveFlightPlan();
 744                         _subPage = 0;
 745                 }
 746                 _parent->CrsrPressed();
 747         } else if(_uLinePos == 2) {
 748                 if(_kln89->_flightPlans[_subPage]->IsEmpty()) {
 749                         // ERROR !!!
 750                 } else {
 751                         // Use Invert
 752                         _parent->ClearFlightPlan(0);
 753                         for(unsigned int i=0; i<_kln89->_flightPlans[_subPage]->waypoints.size(); ++i) {
 754                                 GPSWaypoint* wp = new GPSWaypoint;
 755                                 *wp = *(_kln89->_flightPlans[_subPage]->waypoints[i]);
 756                                 // FIXME - very inefficient - use a reverse iterator on the source array and push_back instead!!!!!!!!
 757                                 _kln89->_flightPlans[0]->waypoints.insert(_kln89->_flightPlans[0]->waypoints.begin(), wp);
 758                         }
 759                         _kln89->OrientateToActiveFlightPlan();
 760                 }
 761                 _parent->CrsrPressed();
 762                 _subPage = 0;
 763         }
 764 }
 765
 766 void KLN89FplPage::Knob1Left1() {
 767         if(_delFP) {
 768                 _delFP = false;
 769                 return;
 770         }
 771         _delWp = false;
 772         _changeAppr = false;
 773
 774         if(_kln89->_mode == KLN89_MODE_CRSR) {
 775                 if(_bEntWp) {
 776                         if(_wLinePos > 0) _wLinePos--;
 777                 } else {
 778                         // _uLinePos with empty/not-empty plan: 1 = Copy FPL 0? / Use?, 2 = unused if empty / Invert?, 3 = >Dis/Dtk field, 4+ = Waypoint 1+
 779                         if(_uLinePos == 0) {
 780                                 // No-op
 781                         } else if(_uLinePos == 1 || _uLinePos == 2) {
 782                                 _uLinePos--;
 783                         } else if(_uLinePos == 3) {
 784                                 _uLinePos = 4;
 785                         } else if(_uLinePos == 4) {
 786                                 if(_kln89->_flightPlans[_subPage]->IsEmpty()) {
 787                                         _uLinePos = (_subPage == 0 ? 0 : 1);
 788                                 } else if(_fplPos == 0) {
 789                                         _uLinePos = (_subPage == 0 ? 0 : 2);
 790                                 } else {
 791                                         _fplPos--;
 792                                 }
 793                         } else if(_uLinePos == 5) {
 794                                 _uLinePos = 3;
 795                         } else {
 796                                 _uLinePos--;
 797                         }
 798
 799                         if(_subPage == 0 && _uLinePos > 3) {
 800                                 int ix = _fplPos + (_uLinePos - 4);
 801                                 if(_fencePos >= 0 && ix >= _fencePos) ix--;
 802                                 if(_hdrPos >= 0 && ix >= _hdrPos) ix--;
 803                                 if(ix >= _kln89->_activeFP->waypoints.size()) {
 804                                         _fp0SelWpId.clear();
 805                                 } else {
 806                                         _fp0SelWpId = _kln89->_activeFP->waypoints[ix]->id;
 807                                 }
 808                         } else {
 809                                 _fp0SelWpId.clear();
 810                                 //cout << "Not page 0, or not in waypoints, clearing id!\n";
 811                         }
 812                 }
 813         }
 814 }
 815
 816 void KLN89FplPage::Knob1Right1() {
 817         if(_delFP) {
 818                 _delFP = false;
 819                 return;
 820         }
 821         _delWp = false;
 822         _changeAppr = false;
 823
 824         if(_kln89->_mode == KLN89_MODE_CRSR) {
 825                 if(_bEntWp) {
 826                         if(_wLinePos < 4) _wLinePos++;
 827                 } else {
 828                         // _uLinePos with empty/not-empty plan:
 829                         // 1 = Copy FPL 0? / Use?, 2 = unused if empty / Invert?, 3 = >Dis/Dtk field, 4+ = Waypoint 1+
 830                         if(_uLinePos == 0) {
 831                                 _uLinePos = (_subPage == 0 ? 4 : 1);
 832                         } else if(_uLinePos == 1) {
 833                                 _uLinePos = (_kln89->_flightPlans[_subPage]->IsEmpty() ? 4 : 2);
 834                         } else if(_uLinePos == 2) {
 835                                 _uLinePos = 4;
 836                         } else if(_uLinePos == 3) {
 837                                 if(!_kln89->_flightPlans[_subPage]->IsEmpty()) _uLinePos = 5;
 838                         } else if(_uLinePos == 4) {
 839                                 _uLinePos = 3;
 840                         } else if((_subPage == 0 && _uLinePos == 6) || (_subPage > 0 && _uLinePos == 5)) {
 841                                 // Urrggh - complicated!
 842                                 // 3 possibilities:
 843                                 // 1: We're on the entry field at the end of the list, and can't move any more.
 844                                 // 2: We're on the last or second-last field, and move to the last position
 845                                 // 3: We're on a field before the second-last one, and don't move, but change the list-head position
 846                                 // And 4: _subPage 0 can be complicated by the presence of header/fence lines in an approach.
 847                                 int hfcount = 0;
 848                                 if(_subPage == 0) {
 849                                         if(_hdrPos >= 0) hfcount++;
 850                                         if(_fencePos >= 0) hfcount++;
 851                                 }
 852                                 if(_kln89->_flightPlans[_subPage]->waypoints.size() == 1 || _fplPos == _kln89->_flightPlans[_subPage]->waypoints.size() + hfcount - 1) {
 853                                         // 1: Don't move
 854                                 } else if(_fplPos >= _kln89->_flightPlans[_subPage]->waypoints.size() + hfcount - (_subPage == 0 ? 4 : 3)) {
 855                                         _uLinePos++;
 856                                 } else {
 857                                         _fplPos++;
 858                                 }
 859                         } else if(_uLinePos == 5) {
 860                                 // Must be _subPage 0
 861                                 _uLinePos++;
 862                         } else {
 863                                 // Must be the last line - either _uLinePos 6 or 7 depending on _subPage
 864                                 int thresh = (_subPage == 0 ? 3 : 2);
 865                                 if(_kln89->_flightPlans[_subPage]->waypoints.size() == thresh || _fplPos == _kln89->_flightPlans[_subPage]->waypoints.size() - thresh) {
 866                                         // Don't move
 867                                 } else {
 868                                         _fplPos++;
 869                                 }
 870                         }
 871
 872                         if(_subPage == 0 && _uLinePos > 3) {
 873                                 int ix = _fplPos + (_uLinePos - 4);
 874                                 if(_fencePos >= 0 && ix >= _fencePos) ix--;
 875                                 if(_hdrPos >= 0 && ix >= _hdrPos) ix--;
 876                                 if(ix >= _kln89->_activeFP->waypoints.size()) {
 877                                         _fp0SelWpId.clear();
 878                                 } else {
 879                                         _fp0SelWpId = _kln89->_activeFP->waypoints[ix]->id;
 880                                 }
 881                         } else {
 882                                 _fp0SelWpId.clear();
 883                                 //cout << "Not page 0, or not in waypoints, clearing id!\n";
 884                         }
 885                 }
 886         }
 887 }
 888
 889 void KLN89FplPage::Knob2Left1() {
 890         if(_delFP) {
 891                 _delFP = false;
 892                 return;
 893         }
 894         _delWp = false;
 895
 896         if(_kln89->_mode != KLN89_MODE_CRSR || _uLinePos == 0) {
 897                 if(_kln89->_mode != KLN89_MODE_CRSR) _resetFplPos0 = true;
 898                 KLN89Page::Knob2Left1();
 899         } else {
 900                 if(_uLinePos > 3) {
 901                         // Check for approach waypoints or header/fences in flightplan 0
 902                         int n = _fplPos + _uLinePos - 4;
 903                         bool hdrPos = false;
 904                         bool fencePos = false;
 905                         bool appWp = false;
 906                         //cout << "_fplPos = " << _fplPos << ", _uLinePos = " << _uLinePos << ", n = " << n << ", _hdrPos = " << _hdrPos << ", _fencePos = " << _fencePos << '\n';
 907                         if(n == _hdrPos) {
 908                                 //cout << "HEADER POS\n";
 909                                 hdrPos = true;
 910                         }
 911                         if(n == _fencePos) {
 912                                 //cout << "FENCE POS\n";
 913                                 fencePos = true;
 914                         }
 915                         if(_hdrPos >= 0 && n > _hdrPos) --n;
 916                         if(_fencePos >= 0 && n >= _fencePos) --n;       // This one needs to be >= since n is already decremented by 1 in the line above!
 917                         //cout << "New n = " << n << '\n';
 918
 919                         if(n < _kln89->_flightPlans[_subPage]->waypoints.size()) {
 920                                 if(_kln89->_flightPlans[_subPage]->waypoints[n]->appType != GPS_APP_NONE) {
 921                                         appWp = true;
 922                                 }
 923                         }
 924
 925                         if(hdrPos) {
 926                                 // TODO - not sure what we actually do in this condition
 927                                 _changeAppr = true;
 928                         } else if(fencePos) {
 929                                 // no-op?
 930                         } else if(appWp) {
 931                                 ShowScratchpadMessage("Invald", " Add  ");
 932                         } else {
 933                                 if((_wLinePos + 1) > _entWpStr.size()) {
 934                                         _entWpStr += '9';
 935                                 } else {
 936                                         _entWpStr[_wLinePos] = _kln89->DecChar(_entWpStr[_wLinePos], (_wLinePos == 0 ? false : true));
 937                                 }
 938                                 _bEntWp = true;
 939                                 _fp0SelWpId.clear();    // Waypoints don't become the DTO default whilst being entered.
 940
 941                                 bool multi;
 942                                 const GPSWaypoint* wp = _kln89->FindFirstById(_entWpStr.substr(0, _wLinePos+1), multi, false);
 943                                 if(NULL == wp) {
 944                                         // no-op
 945                                 } else {
 946                                         if(_entWp == NULL) {
 947                                                 _entWp = new GPSWaypoint;
 948                                                 if(_fplPos + (_uLinePos - 4) >= _kln89->_flightPlans[_subPage]->waypoints.size()) {
 949                                                         _kln89->_flightPlans[_subPage]->waypoints.push_back(_entWp);
 950                                                 } else {
 951                                                         _kln89->_flightPlans[_subPage]->waypoints.insert(_kln89->_flightPlans[_subPage]->waypoints.begin()+(_fplPos + (_uLinePos - 4)), _entWp);
 952                                                 }
 953                                         }
 954                                         // copy
 955                                         *_entWp = *wp;
 956                                 }
 957                         }
 958                 }
 959         }
 960 }
 961
 962 void KLN89FplPage::Knob2Right1() {
 963         if(_delFP) {
 964                 _delFP = false;
 965                 return;
 966         }
 967         _delWp = false;
 968
 969         if(_kln89->_mode != KLN89_MODE_CRSR || _uLinePos == 0) {
 970                 if(_kln89->_mode != KLN89_MODE_CRSR) _resetFplPos0 = true;
 971                 KLN89Page::Knob2Right1();
 972         } else {
 973                 if(_uLinePos > 3) {
 974                         // Check for approach waypoints or header/fences in flightplan 0
 975                         int n = _fplPos + _uLinePos - 4;
 976                         bool hdrPos = false;
 977                         bool fencePos = false;
 978                         bool appWp = false;
 979                         //cout << "_fplPos = " << _fplPos << ", _uLinePos = " << _uLinePos << ", n = " << n << ", _hdrPos = " << _hdrPos << ", _fencePos = " << _fencePos << '\n';
 980                         if(n == _hdrPos) {
 981                                 //cout << "HEADER POS\n";
 982                                 hdrPos = true;
 983                         }
 984                         if(n == _fencePos) {
 985                                 //cout << "FENCE POS\n";
 986                                 fencePos = true;
 987                         }
 988                         if(_hdrPos >= 0 && n > _hdrPos) --n;
 989                         if(_fencePos >= 0 && n >= _fencePos) --n;       // This one needs to be >= since n is already decremented by 1 in the line above!
 990                         //cout << "New n = " << n << '\n';
 991
 992                         if(n < _kln89->_flightPlans[_subPage]->waypoints.size()) {
 993                                 if(_kln89->_flightPlans[_subPage]->waypoints[n]->appType != GPS_APP_NONE) {
 994                                         appWp = true;
 995                                 }
 996                         }
 997
 998                         if(hdrPos) {
 999                                 // TODO - not sure what we actually do in this condition
1000                                 _changeAppr = true;
1001                         } else if(fencePos) {
1002                                 // no-op?
1003                         } else if(appWp) {
1004                                 ShowScratchpadMessage("Invald", " Add  ");
1005                         } else {
1006                                 if((_wLinePos + 1) > _entWpStr.size()) {
1007                                         _entWpStr += '9';
1008                                 } else {
1009                                         _entWpStr[_wLinePos] = _kln89->DecChar(_entWpStr[_wLinePos], (_wLinePos == 0 ? false : true));
1010                                 }
1011                                 _bEntWp = true;
1012                                 _fp0SelWpId.clear();    // Waypoints don't become the DTO default whilst being entered.
1013
1014                                 bool multi;
1015                                 const GPSWaypoint* wp = _kln89->FindFirstById(_entWpStr.substr(0, _wLinePos+1), multi, false);
1016                                 if(NULL == wp) {
1017                                         // no-op
1018                                 } else {
1019                                         if(_entWp == NULL) {
1020                                                 _entWp = new GPSWaypoint;
1021                                                 if(_fplPos + (_uLinePos - 4) >= _kln89->_flightPlans[_subPage]->waypoints.size()) {
1022                                                         _kln89->_flightPlans[_subPage]->waypoints.push_back(_entWp);
1023                                                 } else {
1024                                                         _kln89->_flightPlans[_subPage]->waypoints.insert(_kln89->_flightPlans[_subPage]->waypoints.begin()+(_fplPos + (_uLinePos - 4)), _entWp);
1025                                                 }
1026                                         }
1027                                         // copy
1028                                         *_entWp = *wp;
1029                                 }
1030                         }
1031                 }
1032         }
1033 }