1 // kln89_page.cxx - a class to manage the simulation of a KLN89
2 // GPS unit. Note that this is primarily the
3 // simulation of the user interface and display
4 // - the core GPS calculations such as position
5 // and waypoint sequencing are done (or should
6 // be done) by FG code.
8 // Written by David Luff, started 2005.
10 // Copyright (C) 2005 - David C Luff - daveluff AT ntlworld.com
12 // This program is free software; you can redistribute it and/or
13 // modify it under the terms of the GNU General Public License as
14 // published by the Free Software Foundation; either version 2 of the
15 // License, or (at your option) any later version.
17 // This program is distributed in the hope that it will be useful, but
18 // WITHOUT ANY WARRANTY; without even the implied warranty of
19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 // General Public License for more details.
22 // You should have received a copy of the GNU General Public License
23 // along with this program; if not, write to the Free Software
24 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
29 #include "kln89_page.hxx"
30 #include "kln89_page_apt.hxx"
31 #include "kln89_page_vor.hxx"
32 #include "kln89_page_ndb.hxx"
33 #include "kln89_page_int.hxx"
34 #include "kln89_page_usr.hxx"
35 #include "kln89_page_act.hxx"
36 #include "kln89_page_nav.hxx"
37 #include "kln89_page_fpl.hxx"
38 #include "kln89_page_cal.hxx"
39 #include "kln89_page_set.hxx"
40 #include "kln89_page_oth.hxx"
41 #include "kln89_page_alt.hxx"
42 #include "kln89_page_dir.hxx"
43 #include "kln89_page_nrst.hxx"
44 #include "kln89_symbols.hxx"
47 #include <ATCDCL/ATCProjection.hxx>
49 #include <Main/fg_props.hxx>
50 #include <simgear/math/SGMath.hxx>
51 #include <simgear/structure/commands.hxx>
52 #include <Airports/simple.hxx>
57 // Command callbacks for FlightGear
59 static bool do_kln89_msg_pressed(const SGPropertyNode* arg) {
60 //cout << "do_kln89_msg_pressed called!\n";
61 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
66 static bool do_kln89_obs_pressed(const SGPropertyNode* arg) {
67 //cout << "do_kln89_obs_pressed called!\n";
68 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
73 static bool do_kln89_alt_pressed(const SGPropertyNode* arg) {
74 //cout << "do_kln89_alt_pressed called!\n";
75 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
80 static bool do_kln89_nrst_pressed(const SGPropertyNode* arg) {
81 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
86 static bool do_kln89_dto_pressed(const SGPropertyNode* arg) {
87 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
92 static bool do_kln89_clr_pressed(const SGPropertyNode* arg) {
93 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
98 static bool do_kln89_ent_pressed(const SGPropertyNode* arg) {
99 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
104 static bool do_kln89_crsr_pressed(const SGPropertyNode* arg) {
105 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
110 static bool do_kln89_knob1left1(const SGPropertyNode* arg) {
111 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
116 static bool do_kln89_knob1right1(const SGPropertyNode* arg) {
117 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
122 static bool do_kln89_knob2left1(const SGPropertyNode* arg) {
123 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
128 static bool do_kln89_knob2right1(const SGPropertyNode* arg) {
129 KLN89* gps = (KLN89*)globals->get_subsystem("kln89");
134 // End command callbacks
136 KLN89::KLN89(RenderArea2D* instrument)
137 : DCLGPS(instrument) {
138 _mode = KLN89_MODE_DISP;
145 // ..Field..[0] => no fields in action
146 _xFieldBorder[0] = 0;
147 _xFieldBorder[1] = 0;
148 _yFieldBorder[0] = 0;
149 _yFieldBorder[1] = 0;
150 _xFieldBorder[2] = 2;
151 _yFieldBorder[2] = 0;
154 _xFieldStart[2] = 45;
164 KLN89Page* apt_page = new KLN89AptPage(this);
165 _pages.push_back(apt_page);
166 KLN89Page* vor_page = new KLN89VorPage(this);
167 _pages.push_back(vor_page);
168 KLN89Page* ndb_page = new KLN89NDBPage(this);
169 _pages.push_back(ndb_page);
170 KLN89Page* int_page = new KLN89IntPage(this);
171 _pages.push_back(int_page);
172 KLN89Page* usr_page = new KLN89UsrPage(this);
173 _pages.push_back(usr_page);
174 KLN89Page* act_page = new KLN89ActPage(this);
175 _pages.push_back(act_page);
176 KLN89Page* nav_page = new KLN89NavPage(this);
177 _pages.push_back(nav_page);
178 KLN89Page* fpl_page = new KLN89FplPage(this);
179 _pages.push_back(fpl_page);
180 KLN89Page* cal_page = new KLN89CalPage(this);
181 _pages.push_back(cal_page);
182 KLN89Page* set_page = new KLN89SetPage(this);
183 _pages.push_back(set_page);
184 KLN89Page* oth_page = new KLN89OthPage(this);
185 _pages.push_back(oth_page);
186 _nPages = _pages.size();
190 _alt_page = new KLN89AltPage(this);
191 _dir_page = new KLN89DirPage(this);
192 _nrst_page = new KLN89NrstPage(this);
194 _activePage = apt_page;
200 // User-settable configuration. Eventually this should be user-achivable in order that settings can be persistent between sessions.
201 _altUnits = GPS_ALT_UNITS_FT;
202 _baroUnits = GPS_PRES_UNITS_IN;
203 _velUnits = GPS_VEL_UNITS_KT;
204 _distUnits = GPS_DIST_UNITS_NM;
205 _suaAlertEnabled = false;
206 _altAlertEnabled = false;
207 _minDisplayBrightness = 4;
208 _defaultFirstChar = 'A';
210 if(_baroUnits == GPS_PRES_UNITS_IN) {
211 _userBaroSetting = 2992;
213 _userBaroSetting = 1013;
216 _maxFlightPlans = 26;
217 for(unsigned int i=0; i<_maxFlightPlans; ++i) {
218 GPSFlightPlan* fp = new GPSFlightPlan;
219 fp->waypoints.clear();
220 _flightPlans.push_back(fp);
222 _activeFP = _flightPlans[0];
224 _entJump = _clrJump = -1;
225 _jumpRestoreCrsr = false;
234 _mapHeadingUpdateTimer = 0.0;
238 //_mapScaleIndex = 20;
239 _mapScaleIndex = 7; // I think that the above is more accurate for no-flightplan default, but this is more sane for initial testing!
240 _mapScaleAuto = true;
242 // Mega-hack - hardwire airport town and state names for the FG base area since we don't have any data for these at the moment
243 // TODO - do this better one day!
244 _airportTowns["KSFO"] = "San Francisco";
245 _airportTowns["KSQL"] = "San Carlos";
246 _airportTowns["KPAO"] = "Palo Alto";
247 _airportTowns["KNUQ"] = "Mountain View";
248 _airportTowns["KSJC"] = "San Jose";
249 _airportTowns["KRHV"] = "San Jose";
250 _airportTowns["E16"] = "San Martin";
251 _airportTowns["KWVI"] = "Watsonville";
252 _airportTowns["KOAK"] = "Oakland";
253 _airportTowns["KHWD"] = "Hayward";
254 _airportTowns["KLVK"] = "Livermore";
255 _airportTowns["KCCR"] = "Concord";
256 _airportTowns["KTCY"] = "Tracy";
257 _airportTowns["KSCK"] = "Stockton";
258 _airportTowns["KHAF"] = "Half Moon Bay";
260 _airportStates["KSFO"] = "CA";
261 _airportStates["KSQL"] = "CA";
262 _airportStates["KPAO"] = "CA";
263 _airportStates["KNUQ"] = "CA";
264 _airportStates["KSJC"] = "CA";
265 _airportStates["KRHV"] = "CA";
266 _airportStates["E16"] = "CA";
267 _airportStates["KWVI"] = "CA";
268 _airportStates["KOAK"] = "CA";
269 _airportStates["KHWD"] = "CA";
270 _airportStates["KLVK"] = "CA";
271 _airportStates["KCCR"] = "CA";
272 _airportStates["KTCY"] = "CA";
273 _airportStates["KSCK"] = "CA";
274 _airportStates["KHAF"] = "CA";
278 for(unsigned int i=0; i<_pages.size(); ++i) {
286 for(unsigned int i=0; i<_maxFlightPlans; ++i) {
288 delete _flightPlans[i];
293 fgTie("/instrumentation/gps/message-alert", this, &KLN89::GetMsgAlert);
297 void KLN89::unbind() {
298 fgUntie("/instrumentation/gps/message-alert");
303 globals->get_commands()->addCommand("kln89_msg_pressed", do_kln89_msg_pressed);
304 globals->get_commands()->addCommand("kln89_obs_pressed", do_kln89_obs_pressed);
305 globals->get_commands()->addCommand("kln89_alt_pressed", do_kln89_alt_pressed);
306 globals->get_commands()->addCommand("kln89_nrst_pressed", do_kln89_nrst_pressed);
307 globals->get_commands()->addCommand("kln89_dto_pressed", do_kln89_dto_pressed);
308 globals->get_commands()->addCommand("kln89_clr_pressed", do_kln89_clr_pressed);
309 globals->get_commands()->addCommand("kln89_ent_pressed", do_kln89_ent_pressed);
310 globals->get_commands()->addCommand("kln89_crsr_pressed", do_kln89_crsr_pressed);
311 globals->get_commands()->addCommand("kln89_knob1left1", do_kln89_knob1left1);
312 globals->get_commands()->addCommand("kln89_knob1right1", do_kln89_knob1right1);
313 globals->get_commands()->addCommand("kln89_knob2left1", do_kln89_knob2left1);
314 globals->get_commands()->addCommand("kln89_knob2right1", do_kln89_knob2right1);
319 void KLN89::update(double dt) {
320 // Run any positional calc's required first
323 // Set the display brightness. This should be reduced in response to falling light
324 // (i.e. nighttime), or the user covering the photocell that detects the light level.
325 // At the moment I don't know how to detect nighttime or actual light level, so only
326 // respond to the photocell being obscured.
327 // TODO - reduce the brightness in response to nighttime / lowlight.
328 float rgba[4] = {1.0, 0.0, 0.0, 1.0};
329 if(fgGetBool("/instrumentation/kln89/photocell-obscured")) {
330 rgba[0] -= (9 - _minDisplayBrightness) * 0.05;
332 _instrument->SetPixelColor(rgba);
347 _mapHeadingUpdateTimer += dt;
348 if(_mapHeadingUpdateTimer > 1.0) {
350 _mapHeadingUpdateTimer = 0.0;
353 _instrument->Flush();
354 _instrument->DrawBackground();
357 if(_messageStack.empty()) {
358 DrawText("No Message", 0, 5, 2);
360 // TODO - parse the message string for special strings that indicate degrees signs etc!
361 DrawText(*_messageStack.begin(), 0, 0, 3);
365 if(!_messageStack.empty()) {
370 // Draw the indicator that shows which page we are on.
371 if(_curPage == 6 && _activePage->GetSubPage() == 3) {
372 // Don't draw the bar on the nav-4 page
373 } else if((_activePage != _nrst_page) && (_activePage != _dir_page) && (_activePage != _alt_page) && (!_dispMsg)) {
374 // Don't draw the bar on the NRST, DTO or MSG pages
378 _activePage->Update(dt);
381 void KLN89::CreateDefaultFlightPlans() {
382 // TODO - read these in from preferences.xml or similar instead!!!!
383 // Create some hardwired default flightplans for testing.
385 vector<GPSWpType> wps;
389 ids.push_back("KLSN");
390 wps.push_back(GPS_WP_APT);
391 ids.push_back("VOLTA");
392 wps.push_back(GPS_WP_INT);
393 ids.push_back("C83");
394 wps.push_back(GPS_WP_APT);
395 CreateFlightPlan(_flightPlans[5], ids, wps);
399 ids.push_back("KCCR");
400 wps.push_back(GPS_WP_APT);
401 ids.push_back("KHAF");
402 wps.push_back(GPS_WP_APT);
403 CreateFlightPlan(_flightPlans[4], ids, wps);
407 ids.push_back("KLVK");
408 wps.push_back(GPS_WP_APT);
409 ids.push_back("OAK");
410 wps.push_back(GPS_WP_VOR);
411 ids.push_back("PORTE");
412 wps.push_back(GPS_WP_INT);
413 ids.push_back("KHAF");
414 wps.push_back(GPS_WP_APT);
415 CreateFlightPlan(_flightPlans[3], ids, wps);
419 ids.push_back("KDPA");
420 wps.push_back(GPS_WP_APT);
421 ids.push_back("OBK");
422 wps.push_back(GPS_WP_VOR);
423 ids.push_back("ENW");
424 wps.push_back(GPS_WP_VOR);
425 ids.push_back("KRAC");
426 wps.push_back(GPS_WP_APT);
427 CreateFlightPlan(_flightPlans[2], ids, wps);
428 //cout << "Size of FP2 WP list is " << _flightPlans[2]->waypoints.size() << '\n';
432 ids.push_back("KSFO");
433 ids.push_back("KOAK");
434 wps.push_back(GPS_WP_APT);
435 wps.push_back(GPS_WP_APT);
436 CreateFlightPlan(_flightPlans[1], ids, wps);
440 //ids.push_back("KOSH");
441 ids.push_back("KSFO");
442 ids.push_back("KHAF");
443 ids.push_back("OSI");
444 ids.push_back("KSQL");
445 //ids.push_back("KPAO");
446 //ids.push_back("KHWD");
447 wps.push_back(GPS_WP_APT);
448 wps.push_back(GPS_WP_APT);
449 wps.push_back(GPS_WP_VOR);
450 wps.push_back(GPS_WP_APT);
451 //wps.push_back(GPS_WP_APT);
452 //wps.push_back(GPS_WP_APT);
453 CreateFlightPlan(_flightPlans[0], ids, wps);
458 ids.push_back("KLVK");
459 ids.push_back("KHWD");
460 wps.push_back(GPS_WP_APT);
461 wps.push_back(GPS_WP_APT);
462 CreateFlightPlan(_flightPlans[0], ids, wps);
466 void KLN89::SetBaroUnits(int n, bool wrap) {
468 _baroUnits = (KLN89PressureUnits)(wrap ? 3 : 1);
470 _baroUnits = (KLN89PressureUnits)(wrap ? 1 : 3);
472 _baroUnits = (KLN89PressureUnits)n;
476 void KLN89::Knob1Right1() {
477 if(_mode == KLN89_MODE_DISP) {
478 _activePage->LooseFocus();
479 if(_cleanUpPage >= 0) {
480 _pages[(unsigned int)_cleanUpPage]->CleanUp();
484 if(_curPage >= _pages.size()) _curPage = 0;
485 _activePage = _pages[_curPage];
487 _activePage->Knob1Right1();
492 void KLN89::Knob1Left1() {
493 if(_mode == KLN89_MODE_DISP) {
494 _activePage->LooseFocus();
495 if(_cleanUpPage >= 0) {
496 _pages[(unsigned int)_cleanUpPage]->CleanUp();
500 _curPage = _pages.size() - 1;
504 _activePage = _pages[_curPage];
506 _activePage->Knob1Left1();
511 void KLN89::Knob2Left1() {
512 _activePage->Knob2Left1();
515 void KLN89::Knob2Right1() {
516 _activePage->Knob2Right1();
519 void KLN89::CrsrPressed() {
521 // CRSR cannot be switched off on nrst page.
522 if(_activePage == _nrst_page) { return; }
523 // CRSR is always off when inner-knob is out on nav4 page.
524 if(_curPage == 6 && _activePage->GetSubPage() == 3 && fgGetBool("/instrumentation/kln89/scan-pull")) { return; }
525 if(_cleanUpPage >= 0) {
526 _pages[(unsigned int)_cleanUpPage]->CleanUp();
529 _jumpRestoreCrsr = false;
530 _entJump = _clrJump = -1;
531 ((KLN89Page*)_activePage)->SetEntInvert(false);
532 if(_mode == KLN89_MODE_DISP) {
533 _mode = KLN89_MODE_CRSR;
534 _activePage->CrsrPressed();
536 _mode = KLN89_MODE_DISP;
537 _activePage->CrsrPressed();
542 void KLN89::EntPressed() {
545 // one of the data pages. Signal ent pressed to it here, and ent pressed to the call back page a few lines further down.
546 // Ie. 2 ent pressed signals in this case is deliberate.
547 _activePage->EntPressed();
550 _activePage = _pages[(unsigned int)_entJump];
551 if(_jumpRestoreCrsr) _mode = KLN89_MODE_CRSR;
552 _entJump = _clrJump = -1;
554 if(_activePage == _dir_page) {
555 _dir_page->EntPressed();
556 _mode = KLN89_MODE_DISP;
557 _activePage = _pages[_curPage];
559 _activePage->EntPressed();
563 void KLN89::ClrPressed() {
566 _activePage = _pages[(unsigned int)_clrJump];
567 if(_jumpRestoreCrsr) _mode = KLN89_MODE_CRSR;
568 _entJump = _clrJump = -1;
570 _activePage->ClrPressed();
573 void KLN89::DtoPressed() {
574 if(_activePage != _dir_page) {
575 // Figure out which waypoint the dir page should display, according to the following rules:
576 // 1. If the FPL 0 page is displayed AND the cursor is over one of the waypoints, display that waypoint.
577 // 2. If the NAV 4 page is displayed with the inner knob pulled out, display the waypoint highlighted in the lower RH corner of the nav page.
578 // 3. If any of APT, VOR, NDB, INT, USR or ACT pages is displayed then display the waypoint being viewed.
579 // 4. If none of the above, display the active waypoint, unless the active waypoint is the MAP of an approach and it has been flown past
580 // (no waypoint sequence past the MAP), in which case display the first waypoint of the missed approach procedure.
581 // 5. If none of the above (i.e. no active waypoint) then display blanks.
583 // APT, VOR, NDB, INT, USR or ACT
584 if(!_activePage->GetId().empty()) { // Guard against no user waypoints defined
585 _dir_page->SetId(_activePage->GetId());
587 _dir_page->SetId(_activeWaypoint.id);
589 } else if(_curPage == 6 && _activePage->GetSubPage() == 3 && fgGetBool("/instrumentation/kln89/scan-pull") && _activeFP->waypoints.size()) {
591 _dir_page->SetId(((KLN89NavPage*)_activePage)->GetNav4WpId());
592 } else if(_curPage == 7 && _activePage->GetSubPage() == 0 && _mode == KLN89_MODE_CRSR) {
594 if(!_activePage->GetId().empty()) {
595 //cout << "Not empty!!!\n";
596 _dir_page->SetId(_activePage->GetId());
598 //cout << "empty :-(\n";
599 _dir_page->SetId(_activeWaypoint.id);
602 _dir_page->SetId(_activeWaypoint.id);
604 // This need to come after the bit before otherwise the FPL or NAV4 page clears their current ID when it looses focus.
605 _activePage->LooseFocus();
606 _activePage = _dir_page;
607 _mode = KLN89_MODE_CRSR;
611 void KLN89::NrstPressed() {
612 if(_activePage != _nrst_page) {
613 _activePage->LooseFocus(); // TODO - check whether we should call loose focus here
614 _lastActivePage = _activePage;
615 _activePage = _nrst_page;
617 _mode = KLN89_MODE_CRSR;
619 _activePage = _lastActivePage;
624 void KLN89::AltPressed() {
625 if(_activePage != _alt_page) {
626 _activePage->LooseFocus(); // TODO - check whether we should call loose focus here
627 _lastActivePage = _activePage;
628 _alt_page->SetSubPage(0);
629 _activePage = _alt_page;
631 _mode = KLN89_MODE_CRSR;
633 _alt_page->LooseFocus();
634 if(_alt_page->GetSubPage() == 0) {
635 _alt_page->SetSubPage(1);
636 _mode = KLN89_MODE_CRSR;
638 _activePage = _lastActivePage;
644 void KLN89::OBSPressed() {
647 if(!fgGetBool("/instrumentation/nav/slaved-to-gps")) {
648 // NOTE: this only applies to ORS 02 firmware, in ORS 01
649 // CRSR mode is not automatically set when OBS is started.
650 _mode = KLN89_MODE_CRSR;
652 _activePage->OBSPressed();
656 void KLN89::MsgPressed() {
657 // TODO - handle persistent messages such as SUA alerting.
658 // (The message annunciation flashes before first view, but afterwards remains continuously lit with the message available
659 // until the potential conflict no longer pertains).
660 if(_dispMsg && _messageStack.size()) {
661 _messageStack.pop_front();
663 _dispMsg = !_dispMsg;
666 void KLN89::ToggleOBSMode() {
667 DCLGPS::ToggleOBSMode();
670 void KLN89::DtoInitiate(const string& id) {
672 // Set the current page to NAV1
674 _activePage = _pages[_curPage];
675 _activePage->SetSubPage(0);
676 // TODO - need to output a scratchpad message with the new course, but we don't know it yet!
677 // Call the base class to actually initiate the DTO.
678 DCLGPS::DtoInitiate(id);
681 void KLN89::SetMinDisplayBrightness(int n) {
682 _minDisplayBrightness = n;
683 if(_minDisplayBrightness < 1) _minDisplayBrightness = 1;
684 if(_minDisplayBrightness > 9) _minDisplayBrightness = 9;
687 void KLN89::DecrementMinDisplayBrightness() {
688 _minDisplayBrightness--;
689 if(_minDisplayBrightness < 1) _minDisplayBrightness = 1;
692 void KLN89::IncrementMinDisplayBrightness() {
693 _minDisplayBrightness++;
694 if(_minDisplayBrightness > 9) _minDisplayBrightness = 9;
697 void KLN89::DrawBar(int page) {
698 int px = 1 + (page * 15);
700 for(int i=0; i<7; ++i) {
701 // Ugh - this is crude and inefficient!
702 _instrument->DrawPixel(px+i, py);
703 _instrument->DrawPixel(px+i, py+1);
707 // Convert moving map to instrument co-ordinates
708 void KLN89::MapToInstrument(int &x, int &y) {
709 x += _xBorder + _xFieldBorder[2] + _xFieldStart[2];
712 // Draw a pixel specified in instrument co-ords, but clipped to the map region
713 //void KLN89::DrawInstrMapPixel(int x, int y) {
716 // Clip, translate and draw a map pixel
717 // If we didn't need per-pixel clipping, it would be cheaper to translate object rather than pixel positions.
718 void KLN89::DrawMapPixel(int x, int y, bool invert) {
719 if(x < 0 || x > 111 || y < 0 || y > 39) return;
720 x += _xBorder + _xFieldBorder[2] + _xFieldStart[2];
721 _instrument->DrawPixel(x, y, invert);
725 // HACK - use something FG provides
726 static double gps_min(const double &a, const double &b) {
727 return(a <= b ? a : b);
730 static double gps_max(const double &a, const double &b) {
731 return(a >= b ? a : b);
734 void KLN89::UpdateMapHeading() {
735 switch(_mapOrientation) {
740 _mapHeading = _dtkTrue;
743 _mapHeading = _track;
748 // The screen area allocated to the moving map is 111 x 40 pixels.
749 // In North up mode, the user position marker is at 57, 20. (Map co-ords).
750 void KLN89::DrawMap(bool draw_avs) {
751 // Set the clipping region to the moving map part of the display
752 int xstart = _xBorder + _xFieldBorder[2] + _xFieldStart[2];
753 _instrument->SetClipRegion(xstart, 0, xstart + 110, 39);
755 _mapScaleUnits = (int)_distUnits;
756 _mapScale = (double)(KLN89MapScales[_mapScaleUnits][_mapScaleIndex]);
758 //cout << "Map scale = " << _mapScale << '\n';
760 double mapScaleMeters = _mapScale * (_mapScaleUnits == 0 ? SG_NM_TO_METER : 1000);
762 // TODO - use an aligned projection when either DTK or TK up!
763 FGATCAlignedProjection mapProj(SGGeod::fromRad(_gpsLon, _gpsLat), _mapHeading);
764 double meter_per_pix = (_mapOrientation == 0 ? mapScaleMeters / 20.0f : mapScaleMeters / 29.0f);
765 SGGeod bottomLeft = mapProj.ConvertFromLocal(SGVec3d(gps_max(-57.0 * meter_per_pix, -50000), gps_max((_mapOrientation == 0 ? -20.0 * meter_per_pix : -11.0 * meter_per_pix), -25000), 0.0));
766 SGGeod topRight = mapProj.ConvertFromLocal(SGVec3d(gps_min(54.0 * meter_per_pix, 50000), gps_min((_mapOrientation == 0 ? 20.0 * meter_per_pix : 29.0 * meter_per_pix), 25000), 0.0));
771 // Draw Airport labels first (but not one's that are waypoints)
772 // Draw Airports first (but not one's that are waypoints)
773 // Ditto for VORs (not sure if SUA/VOR/Airport ordering is important or not).
777 // Then waypoint labels (not sure if this should be before or after waypoints)
779 // Annotation then gets drawn by Nav page, NOT this function.
781 if(_drawApt && draw_avs) {
783 bool have_apt = _overlays->FindArpByRegion(&apt, bottomLeft.lat(), bottomLeft.lon(), topRight.lat(), topRight.lon());
784 //cout << "Vors enclosed are: ";
785 // Draw all the labels first...
786 for(unsigned int i=0; i<apt.size(); ++i) {
787 //cout << nav[i]->id << ' ';
788 Point3D p = mapProj.ConvertToLocal(Point3D(apt[i]->lon * SG_RADIANS_TO_DEGREES, apt[i]->lat * SG_RADIANS_TO_DEGREES, 0.0));
789 //cout << p << " .... ";
790 int mx = int(p.x() / meter_per_pix) + 56;
791 int my = int(p.y() / meter_per_pix) + (_mapOrientation == 0 ? 19 : 10);
792 //cout << "mx = " << mx << ", my = " << my << '\n';
793 bool right_align = (p.x() < 0.0);
794 DrawLabel(apt[i]->id, mx + (right_align ? -2 : 3), my + (p.y() < 0.0 ? -7 : 3), right_align);
795 // I think that we probably should have -1 in the right_align case above to match the real life instrument.
797 // ...and then all the Apts.
798 for(unsigned int i=0; i<apt.size(); ++i) {
799 //cout << nav[i]->id << ' ';
800 Point3D p = mapProj.ConvertToLocal(Point3D(apt[i]->lon * SG_RADIANS_TO_DEGREES, apt[i]->lat * SG_RADIANS_TO_DEGREES, 0.0));
801 //cout << p << " .... ";
802 int mx = int(p.x() / meter_per_pix) + 56;
803 int my = int(p.y() / meter_per_pix) + (_mapOrientation == 0 ? 19 : 10);
804 //cout << "mx = " << mx << ", my = " << my << '\n';
811 if(_drawVOR && draw_avs) {
812 Overlays::nav_array_type nav;
813 bool have_vor = _overlays->FindVorByRegion(&nav, bottomLeft.lat(), bottomLeft.lon(), topRight.lat(), topRight.lon());
814 //cout << "Vors enclosed are: ";
815 // Draw all the labels first...
816 for(unsigned int i=0; i<nav.size(); ++i) {
817 //cout << nav[i]->id << ' ';
818 Point3D p = mapProj.ConvertToLocal(Point3D(nav[i]->lon * SG_RADIANS_TO_DEGREES, nav[i]->lat * SG_RADIANS_TO_DEGREES, 0.0));
819 //cout << p << " .... ";
820 int mx = int(p.x() / meter_per_pix) + 56;
821 int my = int(p.y() / meter_per_pix) + (_mapOrientation == 0 ? 19 : 10);
822 //cout << "mx = " << mx << ", my = " << my << '\n';
823 bool right_align = (p.x() < 0.0);
824 DrawLabel(nav[i]->id, mx + (right_align ? -2 : 3), my + (p.y() < 0.0 ? -7 : 3), right_align);
825 // I think that we probably should have -1 in the right_align case above to match the real life instrument.
827 // ...and then all the VORs.
828 for(unsigned int i=0; i<nav.size(); ++i) {
829 //cout << nav[i]->id << ' ';
830 Point3D p = mapProj.ConvertToLocal(Point3D(nav[i]->lon * SG_RADIANS_TO_DEGREES, nav[i]->lat * SG_RADIANS_TO_DEGREES, 0.0));
831 //cout << p << " .... ";
832 int mx = int(p.x() / meter_per_pix) + 56;
833 int my = int(p.y() / meter_per_pix) + (_mapOrientation == 0 ? 19 : 10);
834 //cout << "mx = " << mx << ", my = " << my << '\n';
842 if(_activeFP->waypoints.size() > 1) {
843 vector<int> xvec, yvec, qvec; // qvec stores the quadrant that each waypoint label should
844 // be drawn in (relative to the waypoint).
845 // 1 = NE, 2 = SE, 3 = SW, 4 = NW.
846 double save_h = 0.0; // Each pass, save a heading from the previous one for label quadrant determination.
847 bool drawTrack = true;
848 for(unsigned int i=1; i<_activeFP->waypoints.size(); ++i) {
849 GPSWaypoint* wp0 = _activeFP->waypoints[i-1];
850 GPSWaypoint* wp1 = _activeFP->waypoints[i];
851 SGVec3d p0 = mapProj.ConvertToLocal(SGGeod::fromRad(wp0->lon, wp0->lat));
852 SGVec3d p1 = mapProj.ConvertToLocal(SGGeod::fromRad(wp1->lon, wp1->lat));
853 int mx0 = int(p0.x() / meter_per_pix + 0.5) + 56;
854 int my0 = int(p0.y() / meter_per_pix + 0.5) + (_mapOrientation == 0 ? 19 : 10);
855 int mx1 = int(p1.x() / meter_per_pix + 0.5) + 56;
856 int my1 = int(p1.y() / meter_per_pix + 0.5) + (_mapOrientation == 0 ? 19 : 10);
860 double h = GetGreatCircleCourse(wp0->lat, wp0->lon, wp1->lat, wp1->lon) * SG_RADIANS_TO_DEGREES;
861 // Adjust for map orientation
863 qvec.push_back(GetLabelQuadrant(h));
864 //cout << "i = " << i << ", h = " << h << ", qvec[0] = " << qvec[0] << '\n';
868 if(drawTrack) { DrawLine(mx0, my0, mx1, my1); }
870 double h = GetGreatCircleCourse(wp0->lat, wp0->lon, wp1->lat, wp1->lon) * SG_RADIANS_TO_DEGREES;
871 // Adjust for map orientation
873 qvec.push_back(GetLabelQuadrant(save_h, h));
875 save_h = GetGreatCircleCourse(wp1->lat, wp1->lon, wp0->lat, wp0->lon) * SG_RADIANS_TO_DEGREES;
876 // Adjust for map orientation
877 save_h -= _mapHeading;
878 if(i == _activeFP->waypoints.size() - 1) {
879 qvec.push_back(GetLabelQuadrant(save_h));
881 // Don't draw flight track beyond the missed approach point of an approach
882 if(_approachLoaded) {
883 //cout << "Waypoints are " << wp0->id << " and " << wp1->id << '\n';
884 //cout << "Types are " << wp0->appType << " and " << wp1->appType << '\n';
885 if(wp1->appType == GPS_MAP) {
890 // ASSERT(xvec.size() == yvec.size() == qvec.size() == _activeFP->waypoints.size());
891 for(unsigned int i=0; i<xvec.size(); ++i) {
892 DrawWaypoint(xvec[i], yvec[i]);
893 bool right_align = (qvec[i] > 2);
894 bool top = (qvec[i] == 1 || qvec[i] == 4);
895 // TODO - not sure if labels should be drawn in sequence with waypoints and flightpaths,
896 // or all before or all afterwards. Doesn't matter a huge deal though.
897 DrawLabel(_activeFP->waypoints[i]->id, xvec[i] + (right_align ? -2 : 3), yvec[i] + (top ? 3 : -7), right_align);
902 if(_mapOrientation == 0) {
905 } else if(_mapOrientation == 1) {
908 } else if(_mapOrientation == 2) {
913 // TODO - don't know what to do here!
916 // And finally, reset the clip region to stop the rest of the code going pear-shaped!
917 _instrument->ResetClipRegion();
920 // Get the quadrant to draw the label of the start or end waypoint (i.e. one with only one track from it).
921 // Heading specified FROM the waypoint.
925 int KLN89::GetLabelQuadrant(double h) {
926 while(h < 0.0) h += 360.0;
927 while(h > 360.0) h -= 360.0;
928 if(h < 90.0) return(3);
929 if(h < 180.0) return(4);
930 if(h < 270.0) return(1);
934 // Get the quadrant to draw the label of an en-route waypoint,
935 // with BOTH tracks specified as headings FROM the waypoint.
939 int KLN89::GetLabelQuadrant(double h1, double h2) {
940 while(h1 < 0.0) h1 += 360.0;
941 while(h1 > 360.0) h1 -= 360.0;
942 while(h2 < 0.0) h2 += 360.0;
943 while(h2 > 360.0) h2 -= 360.0;
944 double max_min_diff = 0.0;
946 for(int i=0; i<4; ++i) {
947 double h = 45 + (90 * i);
948 double diff1 = fabs(h - h1);
949 if(diff1 > 180) diff1 = 360 - diff1;
950 double diff2 = fabs(h - h2);
951 if(diff2 > 180) diff2 = 360 - diff2;
952 double min_diff = gps_min(diff1, diff2);
953 if(min_diff > max_min_diff) {
954 max_min_diff = min_diff;
958 //cout << "GetLabelQuadrant, h1 = " << h1 << ", h2 = " << h2 << ", quad = " << quad << '\n';
962 // Draw the diamond style of user pos
972 void KLN89::DrawUser1(int x, int y) {
973 MapToInstrument(x, y);
974 int min_j = 0, max_j = 0;
975 for(int i=-3; i<=3; ++i) {
976 for(int j=min_j; j<=max_j; ++j) {
977 _instrument->DrawPixel(x+j, y+i, (j == min_j || j == max_j ? true : false));
989 // Draw the airplane style of user pos
990 // Define the origin to be the midpoint of the *fuselage*
991 void KLN89::DrawUser2(int x, int y) {
992 MapToInstrument(x, y);
994 // Draw the background as three black quads first
995 _instrument->DrawQuad(x-2, y-3, x+2, y-1, true);
996 _instrument->DrawQuad(x-3, y, x+3, y+2, true);
997 _instrument->DrawQuad(x-1, y+3, x+1, y+3, true);
1000 for(int j=y-2; j<=y+2; ++j) {
1001 _instrument->DrawPixel(x, j);
1003 for(int i=x-1; i<=x+1; ++i) {
1004 _instrument->DrawPixel(i, y-2);
1006 for(int i=x-2; i<=x+2; ++i) {
1007 _instrument->DrawPixel(i, y+1);
1010 _instrument->DrawQuad(x, y-2, x, y+2);
1011 _instrument->DrawQuad(x-1, y-2, x+1, y-2);
1012 _instrument->DrawQuad(x-2, y+1, x+2, y+1);
1016 // Draw an airport symbol on the moving map
1024 void KLN89::DrawApt(int x, int y) {
1025 MapToInstrument(x, y);
1029 for(i=x-1; i<=x+1; ++i) _instrument->DrawPixel(i, j, true);
1031 for(i=x-2; i<=x+2; ++i) _instrument->DrawPixel(i, j, (i != x ? true : false));
1033 for(i=x-2; i<=x+2; ++i) _instrument->DrawPixel(i, j, (abs(i - x) > 1 ? true : false));
1035 for(i=x-2; i<=x+2; ++i) _instrument->DrawPixel(i, j, (i != x ? true : false));
1037 for(i=x-1; i<=x+1; ++i) _instrument->DrawPixel(i, j, true);
1040 // Draw a waypoint on the moving map
1048 void KLN89::DrawWaypoint(int x, int y) {
1049 MapToInstrument(x, y);
1050 _instrument->SetDebugging(true);
1052 // Draw black background
1053 _instrument->DrawQuad(x-2, y-2, x+2, y+2, true);
1055 // Draw the coloured square
1057 for(int i=x-1; i<=x+1; ++i) {
1058 for(int j=y-1; j<=y+1; ++j) {
1059 _instrument->DrawPixel(i, j);
1063 _instrument->DrawQuad(x-1, y-1, x+1, y+1);
1065 _instrument->SetDebugging(false);
1068 // Draw a VOR on the moving map
1076 void KLN89::DrawVOR(int x, int y) {
1077 // Cheat - draw a waypoint and then a black pixel in the middle.
1078 // Need to call Waypoint draw *before* translating co-ords.
1080 MapToInstrument(x, y);
1081 _instrument->DrawPixel(x, y, true);
1084 // Draw a line on the moving map
1085 void KLN89::DrawLine(int x1, int y1, int x2, int y2) {
1086 MapToInstrument(x1, y1);
1087 MapToInstrument(x2, y2);
1088 _instrument->DrawLine(x1, y1, x2, y2);
1091 void KLN89::DrawMapUpArrow(int x, int y) {
1092 MapToInstrument(x, y);
1094 for(int j=0; j<7; ++j) {
1095 _instrument->DrawPixel(x + 2, y + j);
1098 _instrument->DrawQuad(x+2, y, x+2, y+6);
1100 _instrument->DrawPixel(x, y+4);
1101 _instrument->DrawPixel(x+1, y+5);
1102 _instrument->DrawPixel(x+3, y+5);
1103 _instrument->DrawPixel(x+4, y+4);
1106 // Draw a quad on the moving map
1107 void KLN89::DrawMapQuad(int x1, int y1, int x2, int y2, bool invert) {
1108 MapToInstrument(x1, y1);
1109 MapToInstrument(x2, y2);
1110 _instrument->DrawQuad(x1, y1, x2, y2, invert);
1113 // Draw an airport or waypoint label on the moving map
1114 // Specify position by the map pixel co-ordinate of the left or right, bottom, of the *visible* portion of the label.
1115 // The black background quad will automatically overlap this by 1 pixel.
1116 void KLN89::DrawLabel(const string& s, int x1, int y1, bool right_align) {
1117 MapToInstrument(x1, y1);
1119 for(unsigned int i=0; i<s.size(); ++i) {
1121 x1 += DrawSmallChar(c, x1, y1);
1125 for(int i=(int)(s.size()-1); i>=0; --i) {
1127 x1 -= DrawSmallChar(c, x1, y1, right_align);
1133 void KLN89::DrawCDI() {
1135 for(int i=0; i<5; ++i) {
1136 DrawSpecialChar(2, 2, 3+i, 2);
1137 DrawSpecialChar(1, 2, 9+i, 2);
1141 int px = 8 * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field] + 2;
1142 int py = 2 * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field];
1145 // Every 7 pixels deflection left or right is one dot on the scale, and hence 1/5 FSD.
1146 // Maximum deflection is 37 pixels left, or 38 pixels right !?!
1147 double xtd = CalcCrossTrackDeviation();
1149 if(_cdiScaleTransition) {
1150 double dots = (xtd / _currentCdiScale) * 5.0;
1151 deflect = (int)(dots * 7.0 * -1.0);
1152 // TODO - for all these I think I should add 0.5 before casting to int, and *then* multiply by -1. Possibly!
1154 if(0 == _currentCdiScaleIndex) { // 5.0nm FSD => 1 nm per dot => 7 pixels per nm.
1155 deflect = (int)(xtd * 7.0 * -1.0); // The -1.0 is because we move the 'needle' indicating the course, not the plane.
1156 } else if(1 == _currentCdiScaleIndex) {
1157 deflect = (int)(xtd * 35.0 * -1.0);
1158 } else { // 0.3 == _cdiScale
1159 deflect = (int)(xtd * 116.6666666667 * -1.0);
1162 if(deflect > 38) deflect = 38;
1163 if(deflect < -37) deflect = -37;
1165 for(int j=0; j<9; ++j) {
1166 _instrument->DrawPixel(px + deflect, py+j);
1167 _instrument->DrawPixel(px + deflect + 1, py+j);
1170 _instrument->DrawQuad(px + deflect, py, px + deflect + 1, py + 8);
1173 // To/From indicator
1176 for(int j=4; j>=0; --j) {
1178 for(int i=0; i<k; ++i) {
1179 _instrument->DrawPixel(px+j+i, (_headingBugTo ? py+j : py+4-j));
1180 // At the extremities, draw the outlining dark pixel
1181 if(i == 0 || i == k-1) {
1182 _instrument->DrawPixel(px+j+i, (_headingBugTo ? py+j+1 : py+3-j), true);
1188 void KLN89::DrawLegTail(int py) {
1189 int px = 0 * 7 + _xBorder + _xFieldBorder[2] + _xFieldStart[2];
1190 py = py * 9 + _yBorder + _yFieldBorder[2] + _yFieldStart[2];
1194 py++; // Hack - not sure if this represents a border issue.
1196 for(int i=0; i<9; ++i) _instrument->DrawPixel(px, py+i);
1197 for(int i2=0; i2<5; ++i2) _instrument->DrawPixel(px+i2, py+9);
1200 void KLN89::DrawLongLegTail(int py) {
1201 int px = 0 * 7 + _xBorder + _xFieldBorder[2] + _xFieldStart[2];
1202 py = py * 9 + _yBorder + _yFieldBorder[2] + _yFieldStart[2];
1206 py++; // Hack - not sure if this represents a border issue.
1208 for(int i=0; i<18; ++i) _instrument->DrawPixel(px, py+i);
1209 for(int i2=0; i2<5; ++i2) _instrument->DrawPixel(px+i2, py+18);
1212 void KLN89::DrawHalfLegTail(int py) {
1215 void KLN89::DrawDivider() {
1216 int px = _xFieldStart[2] - 1;
1218 for(int i=0; i<36; ++i) {
1219 _instrument->DrawPixel(px, py+i);
1223 void KLN89::DrawEnt(int field, int px, int py) {
1224 px = px * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field];
1225 py = py * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field] + 1;
1227 px++; // Not sure why we need px++, but it seems to work!
1231 for(int i=0; i<5; ++i) _instrument->DrawPixel(px, py+i);
1232 _instrument->DrawPixel(px+1, py);
1233 _instrument->DrawPixel(px+2, py);
1234 _instrument->DrawPixel(px+1, py+2);
1235 _instrument->DrawPixel(px+1, py+4);
1236 _instrument->DrawPixel(px+2, py+4);
1240 for(int i=0; i<4; ++i) _instrument->DrawPixel(px, py+i);
1241 _instrument->DrawPixel(px+1, py+2);
1242 _instrument->DrawPixel(px+2, py+1);
1243 for(int i=0; i<4; ++i) _instrument->DrawPixel(px+3, py+i);
1247 _instrument->DrawPixel(px, py+3);
1248 for(int i=0; i<4; ++i) _instrument->DrawPixel(px+1, py+i);
1249 _instrument->DrawPixel(px+2, py+3);
1252 void KLN89::DrawMessageAlert() {
1253 // TODO - draw the proper message indicator
1255 int px = _xBorder + _xFieldBorder[1] + _xFieldStart[1];
1256 int py = 1 * 9 + _yBorder + _yFieldBorder[1] + _yFieldStart[1] + 1;
1258 px++; // Not sure why we need px++, but it seems to work!
1261 DrawText(" ", 1, 0, 1, false, 99);
1262 _instrument->DrawQuad(px+1, py-1, px+2, py+5, true);
1263 _instrument->DrawQuad(px+3, py+3, px+3, py+5, true);
1264 _instrument->DrawQuad(px+4, py+2, px+4, py+4, true);
1265 _instrument->DrawQuad(px+5, py+1, px+6, py+3, true);
1266 _instrument->DrawQuad(px+7, py+2, px+7, py+4, true);
1267 _instrument->DrawQuad(px+8, py+3, px+8, py+5, true);
1268 _instrument->DrawQuad(px+9, py-1, px+10, py+5, true);
1272 void KLN89::Underline(int field, int px, int py, int len) {
1273 px = px * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field];
1274 py = py * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field];
1275 for(int i=0; i<(len*7); ++i) {
1276 _instrument->DrawPixel(px, py);
1281 void KLN89::DrawKPH(int field, int cx, int cy) {
1283 int px = cx * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field];
1284 int py = cy * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field];
1289 for(int j=0; j<=4; ++j) {
1290 _instrument->DrawPixel(px, py + 2 +j);
1291 _instrument->DrawPixel(px + 8, py + j);
1293 _instrument->DrawPixel(px + 11, py + j);
1294 _instrument->DrawPixel(px + 9 + j, py + 2);
1298 for(int i=0; i<=6; ++i) {
1300 _instrument->DrawPixel(px + 1 + i, py + 4 + i);
1301 _instrument->DrawPixel(px + 1 + i, py + (4 - i));
1303 _instrument->DrawPixel(px + 2 + i, py + i);
1307 void KLN89::DrawDTO(int field, int cx, int cy) {
1308 DrawSpecialChar(6, field, cx, cy);
1309 if(!(_waypointAlert && _blink)) {
1310 DrawSpecialChar(3, field, cx+1, cy);
1313 int px = cx * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field];
1314 int py = cy * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field];
1319 // Fill in the gap between the 'D' and the arrow.
1320 _instrument->DrawPixel(px+5, py+3);
1323 // Takes character position
1324 void KLN89::DrawChar(char c, int field, int px, int py, bool bold, bool invert) {
1325 // Ignore field for now
1327 px = px * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field];
1328 py = py * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field];
1330 // Draw an orange background for inverted characters
1332 for(int i=0; i<7; ++i) {
1333 for(int j=0; j<9; ++j) {
1334 _instrument->DrawPixel(px + i, py + j);
1339 if(c < 33) return; // space
1341 // Render normal decimal points in bold floats
1342 if(c == '.') bold = false;
1344 ++py; // Shift the char up by one pixel
1345 for(int j=7; j>=0; --j) {
1346 char c1 = (bold ? NumbersBold[c-48][j] : UpperAlpha[c-33][j]);
1347 // Don't do the last column for now (ie. j = 1, not 0)
1348 for(int i=5; i>=0; --i) {
1349 if(c1 & (01 << i)) {
1350 _instrument->DrawPixel(px, py, invert);
1359 // Takes pixel position
1360 void KLN89::DrawFreeChar(char c, int x, int y, bool draw_background) {
1362 if(draw_background) {
1363 _instrument->DrawQuad(x, y, x+6, y+8, true);
1366 if(c < 33) return; // space
1368 ++y; // Shift the char up by one pixel
1369 for(int j=7; j>=0; --j) {
1370 char c1 = UpperAlpha[c-33][j];
1371 // Don't do the last column for now (ie. j = 1, not 0)
1372 for(int i=5; i>=0; --i) {
1373 if(c1 & (01 << i)) {
1374 _instrument->DrawPixel(x, y);
1383 // Takes instrument pixel co-ordinates.
1384 // Position is specified by the bottom of the *visible* portion, by default the left position unless align_right is true.
1385 // The return value is the pixel width of the visible portion
1386 int KLN89::DrawSmallChar(char c, int x, int y, bool align_right) {
1387 // calculate the index into the SmallChar array
1389 if(c > 47 && c < 58) {
1392 } else if(c > 64 && c < 91) {
1399 char n = SmallChar[idx][0]; // Width of visible portion
1400 if(align_right) x -= n;
1403 _instrument->DrawQuad(x - 1, y - 1, x + n, y + 5, true);
1405 for(int j=7; j>=3; --j) {
1406 char c1 = SmallChar[idx][j];
1407 for(int i=n-1; i>=0; --i) {
1408 if(c1 & (01 << i)) {
1409 _instrument->DrawPixel(x, y);
1420 // Takes character position
1421 void KLN89::DrawSpecialChar(char c, int field, int cx, int cy, bool bold) {
1423 cout << "ERROR - requested special char outside array bounds!\n";
1424 return; // Increment this as SpecialChar grows
1427 // Convert character to pixel position.
1428 // Ignore field for now
1430 int px = cx * 7 + _xBorder + _xFieldBorder[field] + _xFieldStart[field];
1431 int py = cy * 9 + _yBorder + _yFieldBorder[field] + _yFieldStart[field];
1432 ++py; // Total hack - the special chars were coming out 1 pixel too low!
1433 for(int i=7; i>=0; --i) {
1434 char c1 = SpecialChar[(int)c][i];
1435 // Don't do the last column for now (ie. j = 1, not 0)
1436 for(int j=5; j>=0; --j) {
1437 if(c1 & (01 << j)) {
1438 _instrument->DrawPixel(px, py);
1447 void KLN89::DrawText(const string& s, int field, int px, int py, bool bold, int invert) {
1448 for(int i = 0; i < (int)s.size(); ++i) {
1449 DrawChar(s[(unsigned int)i], field, px+i, py, bold, (invert == i || invert == 99));
1453 void KLN89::DrawMapText(const string& s, int x, int y, bool draw_background) {
1454 MapToInstrument(x, y);
1455 if(draw_background) {
1456 //_instrument->DrawQuad(x, y, x + (7 * s.size()) - 1, y + 8, true);
1457 _instrument->DrawQuad(x - 1, y, x + (7 * s.size()) - 2, y + 8, true);
1458 // The minus 1 and minus 2 are an ugly hack to disguise the fact that I've lost track of exactly what's going on!
1461 for(int i = 0; i < (int)s.size(); ++i) {
1462 DrawFreeChar(s[(unsigned int)i], x+(i * 7)-1, y);
1466 void KLN89::DrawLatitude(double d, int field, int px, int py) {
1467 DrawChar((d >= 0 ? 'N' : 'S'), field, px, py);
1470 // TODO - sanity check input to ensure major lat field can only ever by 2 chars wide
1472 // Don't know whether to zero pad the below for single digits or not?
1473 //cout << d << ", " << (int)d << '\n';
1474 // 3 not 2 in size before for trailing \0
1475 int n = snprintf(buf, 3, "%i", (int)d);
1477 //cout << s << "... " << n << '\n';
1478 DrawText(s, field, px+(3-n), py);
1479 n = snprintf(buf, 7, "%05.2f'", ((double)(d - (int)d)) * 60.0f);
1482 DrawSpecialChar(0, field, px, py); // Degrees symbol
1484 DrawText(s, field, px, py);
1487 void KLN89::DrawLongitude(double d, int field, int px, int py) {
1488 DrawChar((d >= 0 ? 'E' : 'W'), field, px, py);
1491 // TODO - sanity check input to ensure major lat field can only ever be 2 chars wide
1493 // Don't know whether to zero pad the below for single digits or not?
1494 //cout << d << ", " << (int)d << '\n';
1495 // 4 not 3 in size before for trailing \0
1496 int n = snprintf(buf, 4, "%i", (int)d);
1498 //cout << s << "... " << n << '\n';
1499 DrawText(s, field, px+(3-n), py);
1500 n = snprintf(buf, 7, "%05.2f'", ((double)(d - (int)d)) * 60.0f);
1503 DrawSpecialChar(0, field, px, py); // Degrees symbol
1505 DrawText(s, field, px, py);
1508 void KLN89::DrawFreq(double d, int field, int px, int py) {
1509 if(d >= 1000) d /= 100.0f;
1511 snprintf(buf, 7, "%6.2f", d);
1513 DrawText(s, field, px, py);
1516 void KLN89::DrawTime(double time, int field, int px, int py) {
1517 int hrs = (int)(time / 3600);
1518 int mins = (int)(ceil((time - (hrs * 3600)) / 60.0));
1523 n = snprintf(buf, 9, "%i:%02i", hrs, mins);
1526 n = snprintf(buf, 4, ":%02i", (int)time);
1529 DrawText(s, field, px - n + 1, py);
1532 void KLN89::DrawHeading(int h, int field, int px, int py) {
1534 snprintf(buf, 4, "%i", h);
1536 DrawText(s, field, px - s.size(), py);
1537 DrawSpecialChar(0, field, px, py); // Degrees symbol
1540 void KLN89::DrawDist(double d, int field, int px, int py) {
1541 d *= (_distUnits == GPS_DIST_UNITS_NM ? 1.0 : SG_NM_TO_METER * 0.001);
1543 snprintf(buf, 9, "%i", (int)(d + 0.5));
1545 s += (_distUnits == GPS_DIST_UNITS_NM ? "nm" : "Km");
1546 DrawText(s, field, px - s.size() + 1, py);
1549 void KLN89::DrawSpeed(double v, int field, int px, int py, int decimal) {
1550 // TODO - implement variable decimal places
1551 v *= (_velUnits == GPS_VEL_UNITS_KT ? 1.0 : 0.51444444444 * 0.001 * 3600.0);
1553 snprintf(buf, 9, "%i", (int)(v + 0.5));
1555 if(_velUnits == GPS_VEL_UNITS_KT) {
1557 DrawText(s, field, px - s.size() + 1, py);
1559 DrawText(s, field, px - s.size() - 1, py);
1560 DrawKPH(field, px - 1, py);
1564 void KLN89::DrawDirDistField(double lat, double lon, int field, int px, int py, bool to_flag, bool cursel) {
1565 DrawChar('>', field, px, py);
1569 h = GetMagHeadingFromTo(_gpsLat, _gpsLon, lat, lon);
1571 h = GetMagHeadingFromTo(lat, lon, _gpsLat, _gpsLon);
1573 while(h < 0.0) h += 360.0;
1574 while(h > 360.0) h -= 360.0;
1575 snprintf(buf, 4, "%3i", (int)(h + 0.5));
1577 if(!(cursel && _blink)) {
1578 DrawText(s, field, px + 4 - s.size(), py);
1579 DrawSpecialChar(0, field, px+4, py);
1580 DrawText((to_flag ? "To" : "Fr"), field, px+5, py);
1581 if(cursel) Underline(field, px + 1, py, 6);
1583 //double d = GetHorizontalSeparation(_gpsLat, _gpsLon, lat, lon);
1584 //d *= (_distUnits == GPS_DIST_UNITS_NM ? SG_METER_TO_NM : 0.001);
1585 double d = GetGreatCircleDistance(_gpsLat, _gpsLon, lat, lon);
1586 d *= (_distUnits == GPS_DIST_UNITS_NM ? 1.0 : SG_NM_TO_METER * 0.001);
1588 snprintf(buf, 7, "%5i", (int)(d + 0.5));
1590 snprintf(buf, 7, "%4.1f", d);
1593 DrawText(s, field, px + 12 - s.size(), py);
1594 DrawText((_distUnits == GPS_DIST_UNITS_NM ? "nm" : "Km"), field, px + 12, py);
1597 char KLN89::IncChar(char c, bool gap, bool wrap) {
1598 if(c == '9') return(wrap ? (gap ? ' ' : 'A') : '9');
1599 if(c == 'Z') return('0');
1600 if(c == ' ') return('A');
1604 char KLN89::DecChar(char c, bool gap, bool wrap) {
1605 if(c == 'A') return(wrap ? (gap ? ' ' : '9') : 'A');
1606 if(c == '0') return('Z');
1607 if(c == ' ') return('9');