src/Main/keyboard.cxx

   1 // keyboard.cxx -- handle GLUT keyboard events
   2 //
   3 // Written by Curtis Olson, started May 1997.
   4 //
   5 // Copyright (C) 1997 - 1999  Curtis L. Olson  - curt@flightgear.org
   6 //
   7 // This program is free software; you can redistribute it and/or
   8 // modify it under the terms of the GNU General Public License as
   9 // published by the Free Software Foundation; either version 2 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 // General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this program; if not, write to the Free Software
  19 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 //
  21 // $Id$
  22
  23
  24 #ifdef HAVE_CONFIG_H
  25 #  include <config.h>
  26 #endif
  27
  28 #ifdef HAVE_WINDOWS_H
  29 #  include <windows.h>
  30 #endif
  31
  32 #include <simgear/compiler.h>
  33
  34 #include <GL/glut.h>
  35 #include <simgear/xgl/xgl.h>
  36
  37 #if defined(FX) && defined(XMESA)
  38 #include <GL/xmesa.h>
  39 #endif
  40
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43
  44 #include STL_FSTREAM
  45
  46 #include <plib/pu.h>            // plib include
  47
  48 #include <simgear/constants.h>
  49 #include <simgear/debug/logstream.hxx>
  50 #include <simgear/misc/fgpath.hxx>
  51
  52 #include <Aircraft/aircraft.hxx>
  53 #include <Autopilot/auto_gui.hxx>
  54 #include <Autopilot/newauto.hxx>
  55 #include <Cockpit/hud.hxx>
  56 #include <Cockpit/panel.hxx>
  57 #include <Cockpit/panel_io.hxx>
  58 #include <GUI/gui.h>
  59 #include <Scenery/tilemgr.hxx>
  60 #include <Objects/matlib.hxx>
  61 #include <Time/light.hxx>
  62 #include <Time/tmp.hxx>
  63
  64 #ifndef FG_OLD_WEATHER
  65 #  include <WeatherCM/FGLocalWeatherDatabase.h>
  66 #else
  67 #  include <Weather/weather.hxx>
  68 #endif
  69
  70 #include "bfi.hxx"
  71 #include "globals.hxx"
  72 #include "keyboard.hxx"
  73 #include "save.hxx"
  74
  75                                 // From main.cxx
  76 extern void fgReshape( int width, int height );
  77
  78
  79 // Handle keyboard events
  80 void GLUTkey(unsigned char k, int x, int y) {
  81     float fov, tmp;
  82     static bool winding_ccw = true;
  83     int speed;
  84
  85     FGInterface *f = current_aircraft.fdm_state;
  86     FGViewerRPH *v = (FGViewerRPH *)globals->get_current_view();
  87
  88     FG_LOG( FG_INPUT, FG_DEBUG, "Key hit = " << k );
  89     if ( puKeyboard(k, PU_DOWN) ) {
  90         return;
  91     }
  92
  93     if ( GLUT_ACTIVE_ALT && glutGetModifiers() ) {
  94         FG_LOG( FG_INPUT, FG_DEBUG, " SHIFTED" );
  95         switch (k) {
  96         case 1: // Ctrl-A key
  97             current_autopilot->set_AltitudeMode(
  98                   FGAutopilot::FG_ALTITUDE_LOCK );
  99             current_autopilot->set_AltitudeEnabled(
 100                   ! current_autopilot->get_AltitudeEnabled()
 101                 );
 102             return;
 103         case 7: // Ctrl-G key
 104             current_autopilot->set_AltitudeMode(
 105                   FGAutopilot::FG_ALTITUDE_GS1 );
 106             current_autopilot->set_AltitudeEnabled(
 107                   ! current_autopilot->get_AltitudeEnabled()
 108                 );
 109             return;
 110         case 8: // Ctrl-H key
 111             current_autopilot->set_HeadingMode(
 112                   FGAutopilot::FG_HEADING_LOCK );
 113             current_autopilot->set_HeadingEnabled(
 114                   ! current_autopilot->get_HeadingEnabled()
 115                 );
 116             return;
 117         case 14: // Ctrl-N key
 118             current_autopilot->set_HeadingMode(
 119                   FGAutopilot::FG_HEADING_NAV1 );
 120             current_autopilot->set_HeadingEnabled(
 121                   ! current_autopilot->get_HeadingEnabled()
 122                 );
 123             return;
 124         case 18: // Ctrl-R key
 125             // temporary
 126             winding_ccw = !winding_ccw;
 127             if ( winding_ccw ) {
 128                 glFrontFace ( GL_CCW );
 129             } else {
 130                 glFrontFace ( GL_CW );
 131             }
 132             return;
 133         case 19: // Ctrl-S key
 134             current_autopilot->set_AutoThrottleEnabled(
 135                   ! current_autopilot->get_AutoThrottleEnabled()
 136                 );
 137             return;
 138         case 20: // Ctrl-T key
 139             current_autopilot->set_AltitudeMode(
 140                   FGAutopilot::FG_ALTITUDE_TERRAIN );
 141             current_autopilot->set_AltitudeEnabled(
 142                   ! current_autopilot->get_AltitudeEnabled()
 143                 );
 144             return;
 145         case 21: // Ctrl-U key
 146             // add 1000' of emergency altitude.  Possibly good for
 147             // unflipping yourself :-)
 148             {
 149                 double alt = cur_fdm_state->get_Altitude() + 1000;
 150                 fgFDMForceAltitude( globals->get_options()->get_flight_model(),
 151                                     alt * FEET_TO_METER );
 152             }
 153             return;
 154         case 49: // numeric keypad 1
 155             v->set_goal_view_offset( FG_PI * 0.75 );
 156             if ( globals->get_options()->get_view_mode() ==
 157                  FGOptions::FG_VIEW_FOLLOW )
 158             {
 159                 globals->get_current_view()->set_pilot_offset(-25.0, 25.0, 1.0);
 160                 v->set_view_offset( FG_PI * 0.75 );
 161             }
 162             return;
 163         case 50: // numeric keypad 2
 164             v->set_goal_view_offset( FG_PI );
 165             if ( globals->get_options()->get_view_mode() ==
 166                  FGOptions::FG_VIEW_FOLLOW )
 167             {
 168                 globals->get_current_view()->set_pilot_offset(-25.0, 0.0, 1.0);
 169                 v->set_view_offset( FG_PI );
 170             }
 171             return;
 172         case 51: // numeric keypad 3
 173             v->set_goal_view_offset( FG_PI * 1.25 );
 174             if ( globals->get_options()->get_view_mode() ==
 175                  FGOptions::FG_VIEW_FOLLOW )
 176             {
 177                 globals->get_current_view()->set_pilot_offset(-25.0, -25.0, 1.0);
 178                 v->set_view_offset( FG_PI * 1.25 );
 179             }
 180             return;
 181         case 52: // numeric keypad 4
 182             v->set_goal_view_offset( FG_PI * 0.50 );
 183             if ( globals->get_options()->get_view_mode() ==
 184                  FGOptions::FG_VIEW_FOLLOW )
 185             {
 186                 globals->get_current_view()->set_pilot_offset(0.0, 25.0, 1.0);
 187                 v->set_view_offset( FG_PI * 0.50 );
 188             }
 189             return;
 190         case 54: // numeric keypad 6
 191             v->set_goal_view_offset( FG_PI * 1.50 );
 192             if ( globals->get_options()->get_view_mode() ==
 193                  FGOptions::FG_VIEW_FOLLOW )
 194             {
 195                 globals->get_current_view()->set_pilot_offset(0.0, -25.0, 1.0);
 196                 v->set_view_offset( FG_PI * 1.50 );
 197             }
 198             return;
 199         case 55: // numeric keypad 7
 200             v->set_goal_view_offset( FG_PI * 0.25 );
 201             if ( globals->get_options()->get_view_mode() ==
 202                  FGOptions::FG_VIEW_FOLLOW )
 203             {
 204                 globals->get_current_view()->set_pilot_offset(25.0, 25.0, 1.0);
 205                 v->set_view_offset( FG_PI * 0.25 );
 206             }
 207             return;
 208         case 56: // numeric keypad 8
 209             v->set_goal_view_offset( 0.00 );
 210             if ( globals->get_options()->get_view_mode() ==
 211                  FGOptions::FG_VIEW_FOLLOW )
 212             {
 213                 globals->get_current_view()->set_pilot_offset(25.0, 0.0, 1.0);
 214                 v->set_view_offset( 0.00 );
 215             }
 216             return;
 217         case 57: // numeric keypad 9
 218             v->set_goal_view_offset( FG_PI * 1.75 );
 219             if ( globals->get_options()->get_view_mode() ==
 220                  FGOptions::FG_VIEW_FOLLOW )
 221             {
 222                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 223                 v->set_view_offset( FG_PI * 1.75 );
 224             }
 225             return;
 226         case 65: // A key
 227             speed = globals->get_options()->get_speed_up();
 228             speed--;
 229             if ( speed < 1 ) {
 230                 speed = 1;
 231             }
 232             globals->get_options()->set_speed_up( speed );
 233             return;
 234         case 72: // H key
 235             // status = globals->get_options()->get_hud_status();
 236             // globals->get_options()->set_hud_status(!status);
 237             HUD_brightkey( true );
 238             return;
 239         case 73: // I key
 240             // Minimal Hud
 241             fgHUDInit2(&current_aircraft);
 242             return;
 243         case 77: // M key
 244             globals->inc_warp( -60 );
 245             fgUpdateSkyAndLightingParams();
 246             return;
 247         case 80: // P key
 248             globals->get_options()->toggle_panel();
 249             break;
 250         case 84: // T key
 251             globals->inc_warp_delta( -30 );
 252             fgUpdateSkyAndLightingParams();
 253             return;
 254         case 87: // W key
 255 #if defined(FX) && !defined(WIN32)
 256             global_fullscreen = ( !global_fullscreen );
 257 #  if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
 258             XMesaSetFXmode( global_fullscreen ?
 259                             XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW );
 260 #  endif
 261 #endif
 262             return;
 263         case 88: // X key
 264             fov = globals->get_options()->get_fov();
 265             fov *= 1.05;
 266             if ( fov > FG_FOV_MAX ) {
 267                 fov = FG_FOV_MAX;
 268             }
 269             globals->get_options()->set_fov(fov);
 270             // v->force_update_fov_math();
 271             return;
 272         case 90: // Z key
 273 #ifndef FG_OLD_WEATHER
 274             tmp = WeatherDatabase->getWeatherVisibility();
 275             tmp /= 1.10;
 276             WeatherDatabase->setWeatherVisibility( tmp );
 277 #else
 278             tmp = current_weather.get_visibility();   // in meters
 279             tmp /= 1.10;
 280             current_weather.set_visibility( tmp );
 281 #endif
 282             return;
 283         }
 284     } else {
 285         FG_LOG( FG_INPUT, FG_DEBUG, "" );
 286         switch (k) {
 287         case 50: // numeric keypad 2
 288             if ( current_autopilot->get_AltitudeEnabled() ) {
 289                 current_autopilot->AltitudeAdjust( 100 );
 290             } else {
 291                 controls.move_elevator(-0.05);
 292             }
 293             return;
 294         case 56: // numeric keypad 8
 295             if ( current_autopilot->get_AltitudeEnabled() ) {
 296                 current_autopilot->AltitudeAdjust( -100 );
 297             } else {
 298                 controls.move_elevator(0.05);
 299             }
 300             return;
 301         case 49: // numeric keypad 1
 302             controls.move_elevator_trim(-0.001);
 303             return;
 304         case 55: // numeric keypad 7
 305             controls.move_elevator_trim(0.001);
 306             return;
 307         case 52: // numeric keypad 4
 308             controls.move_aileron(-0.05);
 309             return;
 310         case 54: // numeric keypad 6
 311             controls.move_aileron(0.05);
 312             return;
 313         case 48: // numeric keypad Ins
 314             if ( current_autopilot->get_HeadingEnabled() ) {
 315                 current_autopilot->HeadingAdjust( -1 );
 316             } else {
 317                 controls.move_rudder(-0.05);
 318             }
 319             return;
 320         case 13: // numeric keypad Enter
 321             if ( current_autopilot->get_HeadingEnabled() ) {
 322                 current_autopilot->HeadingAdjust( 1 );
 323             } else {
 324                 controls.move_rudder(0.05);
 325             }
 326             return;
 327         case 53: // numeric keypad 5
 328             controls.set_aileron(0.0);
 329             controls.set_elevator(0.0);
 330             controls.set_rudder(0.0);
 331             return;
 332         case 57: // numeric keypad 9 (Pg Up)
 333             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 334                 current_autopilot->AutoThrottleAdjust( 5 );
 335             } else {
 336                 controls.move_throttle( FGControls::ALL_ENGINES, 0.01 );
 337             }
 338             return;
 339         case 51: // numeric keypad 3 (Pg Dn)
 340             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 341                 current_autopilot->AutoThrottleAdjust( -5 );
 342             } else {
 343                 controls.move_throttle( FGControls::ALL_ENGINES, -0.01 );
 344             }
 345             return;
 346         case 91: // [ key
 347             controls.move_flaps(-0.34);
 348             FG_LOG( FG_INPUT, FG_INFO,
 349                     "Set flaps to " << controls.get_flaps() );
 350             return;
 351         case 93: // ] key
 352             controls.move_flaps(0.34);
 353             FG_LOG( FG_INPUT, FG_INFO,
 354                     "Set flaps to " << controls.get_flaps() );
 355             return;
 356         case 97: // a key
 357             speed = globals->get_options()->get_speed_up();
 358             speed++;
 359             globals->get_options()->set_speed_up( speed );
 360             return;
 361         case 98: // b key
 362             int b_ret;
 363             double b_set;
 364             b_ret = int( controls.get_brake( 0 ) );
 365             b_set = double(!b_ret);
 366             controls.set_brake( FGControls::ALL_WHEELS, b_set);
 367             return;
 368         case 44: // , key
 369             if (controls.get_brake(0) > 0.0) {
 370                 controls.set_brake(0, 0.0);
 371             } else {
 372                 controls.set_brake(0, 1.0);
 373             }
 374             return;
 375         case 46: // . key
 376             if (controls.get_brake(1) > 0.0) {
 377                 controls.set_brake(1, 0.0);
 378             } else {
 379                 controls.set_brake(1, 1.0);
 380             }
 381             return;
 382         case 104: // h key
 383             HUD_masterswitch( true );
 384             return;
 385         case 105: // i key
 386             fgHUDInit(&current_aircraft);  // normal HUD
 387             return;
 388         case 109: // m key
 389             globals->inc_warp( 60 );
 390             fgUpdateSkyAndLightingParams();
 391             return;
 392         case 112: // p key
 393             globals->set_freeze( ! globals->get_freeze() );
 394
 395             {
 396                 FGBucket p( f->get_Longitude() * RAD_TO_DEG,
 397                             f->get_Latitude() * RAD_TO_DEG );
 398                 FGPath tile_path( globals->get_options()->get_fg_root() );
 399                 tile_path.append( "Scenery" );
 400                 tile_path.append( p.gen_base_path() );
 401                 tile_path.append( p.gen_index_str() );
 402
 403                 // printf position and attitude information
 404                 FG_LOG( FG_INPUT, FG_INFO,
 405                         "Lon = " << f->get_Longitude() * RAD_TO_DEG
 406                         << "  Lat = " << f->get_Latitude() * RAD_TO_DEG
 407                         << "  Altitude = " << f->get_Altitude() * FEET_TO_METER
 408                         );
 409                 FG_LOG( FG_INPUT, FG_INFO,
 410                         "Heading = " << f->get_Psi() * RAD_TO_DEG
 411                         << "  Roll = " << f->get_Phi() * RAD_TO_DEG
 412                         << "  Pitch = " << f->get_Theta() * RAD_TO_DEG );
 413                 FG_LOG( FG_INPUT, FG_INFO, tile_path.c_str());
 414             }
 415             return;
 416         case 116: // t key
 417             globals->inc_warp_delta( 30 );
 418             fgUpdateSkyAndLightingParams();
 419             return;
 420         case 118: // v key
 421             globals->set_current_view( globals->get_viewmgr()->next_view() );
 422 #if 0
 423             // globals->get_options()->cycle_view_mode();
 424             if ( globals->get_options()->get_view_mode() ==
 425                  FGOptions::FG_VIEW_FOLLOW )
 426             {
 427                 globals->get_options()->set_view_mode(FGOptions::FG_VIEW_PILOT);
 428                 v->set_goal_view_offset( 0.0 );
 429                 v->set_view_offset( 0.0 );
 430             } else if ( globals->get_options()->get_view_mode() ==
 431                         FGOptions::FG_VIEW_PILOT )
 432             {
 433                 globals->get_options()->set_view_mode( FGOptions::FG_VIEW_FOLLOW );
 434                 v->set_goal_view_offset( FG_PI * 1.75 );
 435                 v->set_view_offset( FG_PI * 1.75 );
 436                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 437             }
 438 #endif
 439             fgReshape( globals->get_options()->get_xsize(),
 440                        globals->get_options()->get_ysize() );
 441             return;
 442         case 120: // x key
 443             fov = globals->get_options()->get_fov();
 444             fov /= 1.05;
 445             if ( fov < FG_FOV_MIN ) {
 446                 fov = FG_FOV_MIN;
 447             }
 448             globals->get_options()->set_fov(fov);
 449             // v->force_update_fov_math();
 450             return;
 451         case 122: // z key
 452 #ifndef FG_OLD_WEATHER
 453             tmp = WeatherDatabase->getWeatherVisibility();
 454             tmp *= 1.10;
 455             WeatherDatabase->setWeatherVisibility( tmp );
 456 #else
 457             tmp = current_weather.get_visibility();   // in meters
 458             tmp *= 1.10;
 459             current_weather.set_visibility( tmp );
 460 #endif
 461             return;
 462         case 27: // ESC
 463             // if( fg_DebugOutput ) {
 464             //   fclose( fg_DebugOutput );
 465             // }
 466             FG_LOG( FG_INPUT, FG_ALERT,
 467                     "Program exit requested." );
 468             ConfirmExitDialog();
 469             return;
 470         }
 471     }
 472 }
 473
 474
 475 // Handle "special" keyboard events
 476 void GLUTspecialkey(int k, int x, int y) {
 477     FGViewerRPH *v = (FGViewerRPH *)globals->get_current_view();
 478
 479     FG_LOG( FG_INPUT, FG_DEBUG, "Special key hit = " << k );
 480
 481     if ( puKeyboard(k + PU_KEY_GLUT_SPECIAL_OFFSET, PU_DOWN) ) {
 482         return;
 483     }
 484
 485     if ( GLUT_ACTIVE_SHIFT && glutGetModifiers() ) {
 486         FG_LOG( FG_INPUT, FG_DEBUG, " SHIFTED" );
 487         switch (k) {
 488         case GLUT_KEY_F1: {
 489             ifstream input("fgfs.sav");
 490             if (input.good() && fgLoadFlight(input)) {
 491                 input.close();
 492                 FG_LOG(FG_INPUT, FG_INFO, "Restored flight from fgfs.sav");
 493             } else {
 494                 FG_LOG(FG_INPUT, FG_ALERT, "Cannot load flight from fgfs.sav");
 495             }
 496             return;
 497         }
 498         case GLUT_KEY_F2: {
 499             FG_LOG(FG_INPUT, FG_INFO, "Saving flight");
 500             ofstream output("fgfs.sav");
 501             if (output.good() && fgSaveFlight(output)) {
 502                 output.close();
 503                 FG_LOG(FG_INPUT, FG_INFO, "Saved flight to fgfs.sav");
 504             } else {
 505                 FG_LOG(FG_INPUT, FG_ALERT, "Cannot save flight to fgfs.sav");
 506             }
 507             return;
 508         }
 509         case GLUT_KEY_F3: {
 510           string panel_path =
 511             current_properties.getStringValue("/sim/panel/path",
 512                                               "Panels/Default/default.xml");
 513           FGPanel * new_panel = fgReadPanel(panel_path);
 514           if (new_panel == 0) {
 515             FG_LOG(FG_INPUT, FG_ALERT,
 516                    "Error reading new panel from " << panel_path);
 517             return;
 518           }
 519           FG_LOG(FG_INPUT, FG_INFO, "Loaded new panel from " << panel_path);
 520           delete current_panel;
 521           current_panel = new_panel;
 522           return;
 523         }
 524         case GLUT_KEY_F4: {
 525           FGPath props_path(globals->get_options()->get_fg_root());
 526           props_path.append("preferences.xml");
 527           FG_LOG(FG_INPUT, FG_INFO, "Rereading global preferences");
 528           if (!readPropertyList(props_path.str(), &current_properties)) {
 529             FG_LOG(FG_INPUT, FG_ALERT,
 530                    "Failed to reread global preferences from "
 531                    << props_path.str());
 532           } else {
 533             FG_LOG(FG_INPUT, FG_INFO, "Finished Reading global preferences");
 534           }
 535           return;
 536         }
 537         case GLUT_KEY_F5: {
 538           current_panel->setYOffset(current_panel->getYOffset() - 5);
 539           fgReshape(globals->get_options()->get_xsize(),
 540                     globals->get_options()->get_ysize());
 541           return;
 542         }
 543         case GLUT_KEY_F6: {
 544           current_panel->setYOffset(current_panel->getYOffset() + 5);
 545           fgReshape(globals->get_options()->get_xsize(),
 546                     globals->get_options()->get_ysize());
 547           return;
 548         }
 549         case GLUT_KEY_F7: {
 550           current_panel->setXOffset(current_panel->getXOffset() - 5);
 551           return;
 552         }
 553         case GLUT_KEY_F8: {
 554           current_panel->setXOffset(current_panel->getXOffset() + 5);
 555           return;
 556         }
 557         case GLUT_KEY_END: // numeric keypad 1
 558             v->set_goal_view_offset( FG_PI * 0.75 );
 559             if ( globals->get_options()->get_view_mode() ==
 560                  FGOptions::FG_VIEW_FOLLOW)
 561             {
 562                 globals->get_current_view()->set_pilot_offset(-25.0, 25.0, 1.0);
 563                 v->set_view_offset( FG_PI * 0.75 );
 564             }
 565             return;
 566         case GLUT_KEY_DOWN: // numeric keypad 2
 567             v->set_goal_view_offset( FG_PI );
 568             if ( globals->get_options()->get_view_mode() ==
 569                  FGOptions::FG_VIEW_FOLLOW )
 570             {
 571                 globals->get_current_view()->set_pilot_offset(-25.0, 0.0, 1.0);
 572                 v->set_view_offset( FG_PI );
 573             }
 574             return;
 575         case GLUT_KEY_PAGE_DOWN: // numeric keypad 3
 576             v->set_goal_view_offset( FG_PI * 1.25 );
 577             if ( globals->get_options()->get_view_mode() ==
 578                  FGOptions::FG_VIEW_FOLLOW)
 579             {
 580                 globals->get_current_view()->set_pilot_offset(-25.0, -25.0, 1.0);
 581                 v->set_view_offset( FG_PI * 1.25 );
 582             }
 583             return;
 584         case GLUT_KEY_LEFT: // numeric keypad 4
 585             v->set_goal_view_offset( FG_PI * 0.50 );
 586             if ( globals->get_options()->get_view_mode() ==
 587                  FGOptions::FG_VIEW_FOLLOW )
 588             {
 589                 globals->get_current_view()->set_pilot_offset(0.0, 25.0, 1.0);
 590                 v->set_view_offset( FG_PI * 0.50 );
 591             }
 592             return;
 593         case GLUT_KEY_RIGHT: // numeric keypad 6
 594             v->set_goal_view_offset( FG_PI * 1.50 );
 595             if ( globals->get_options()->get_view_mode() ==
 596                  FGOptions::FG_VIEW_FOLLOW )
 597             {
 598                 globals->get_current_view()->set_pilot_offset(0.0, -25.0, 1.0);
 599                 v->set_view_offset( FG_PI * 1.50 );
 600             }
 601             return;
 602         case GLUT_KEY_HOME: // numeric keypad 7
 603             v->set_goal_view_offset( FG_PI * 0.25 );
 604             if ( globals->get_options()->get_view_mode() ==
 605                  FGOptions::FG_VIEW_FOLLOW )
 606             {
 607                 globals->get_current_view()->set_pilot_offset(25.0, 25.0, 1.0);
 608                 v->set_view_offset( FG_PI * 0.25 );
 609             }
 610             return;
 611         case GLUT_KEY_UP: // numeric keypad 8
 612             v->set_goal_view_offset( 0.00 );
 613             if ( globals->get_options()->get_view_mode() ==
 614                  FGOptions::FG_VIEW_FOLLOW )
 615             {
 616                 globals->get_current_view()->set_pilot_offset(25.0, 0.0, 1.0);
 617                 v->set_view_offset( 0.00 );
 618             }
 619             return;
 620         case GLUT_KEY_PAGE_UP: // numeric keypad 9
 621             v->set_goal_view_offset( FG_PI * 1.75 );
 622             if ( globals->get_options()->get_view_mode() ==
 623                  FGOptions::FG_VIEW_FOLLOW )
 624             {
 625                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 626                 v->set_view_offset( FG_PI * 1.75 );
 627             }
 628             return;
 629         }
 630     } else {
 631         FG_LOG( FG_INPUT, FG_DEBUG, "" );
 632         switch (k) {
 633         case GLUT_KEY_F2: // F2 Reload Tile Cache...
 634             {
 635                 bool freeze;
 636                 FG_LOG(FG_INPUT, FG_INFO, "ReIniting TileCache");
 637                 if ( !freeze )
 638                     globals->set_freeze( true );
 639                 BusyCursor(0);
 640                 if ( global_tile_mgr.init() ) {
 641                     // Load the local scenery data
 642                     global_tile_mgr.update(
 643                         cur_fdm_state->get_Longitude() * RAD_TO_DEG,
 644                         cur_fdm_state->get_Latitude() * RAD_TO_DEG );
 645                 } else {
 646                     FG_LOG( FG_GENERAL, FG_ALERT,
 647                             "Error in Tile Manager initialization!" );
 648                     exit(-1);
 649                 }
 650                 BusyCursor(1);
 651                 if ( !freeze )
 652                    globals->set_freeze( false );
 653                 return;
 654             }
 655         case GLUT_KEY_F3: // F3 Take a screen shot
 656             fgDumpSnapShot();
 657             return;
 658         case GLUT_KEY_F6: // F6 toggles Autopilot target location
 659             if ( current_autopilot->get_HeadingMode() !=
 660                  FGAutopilot::FG_HEADING_WAYPOINT ) {
 661                 current_autopilot->set_HeadingMode(
 662                     FGAutopilot::FG_HEADING_WAYPOINT );
 663                 current_autopilot->set_HeadingEnabled( true );
 664             } else {
 665                 current_autopilot->set_HeadingMode(
 666                     FGAutopilot::FG_HEADING_LOCK );
 667             }
 668             return;
 669         case GLUT_KEY_F8: // F8 toggles fog ... off fastest nicest...
 670             globals->get_options()->cycle_fog();
 671
 672             if ( globals->get_options()->get_fog() ==
 673                  FGOptions::FG_FOG_DISABLED )
 674             {
 675                 FG_LOG( FG_INPUT, FG_INFO, "Fog disabled" );
 676             } else if ( globals->get_options()->get_fog() ==
 677                         FGOptions::FG_FOG_FASTEST )
 678             {
 679                 FG_LOG( FG_INPUT, FG_INFO,
 680                         "Fog enabled, hint set to fastest" );
 681             } else if ( globals->get_options()->get_fog() ==
 682                         FGOptions::FG_FOG_NICEST )
 683             {
 684                 FG_LOG( FG_INPUT, FG_INFO,
 685                         "Fog enabled, hint set to nicest" );
 686             }
 687
 688             return;
 689         case GLUT_KEY_F9: // F9 toggles textures on and off...
 690             FG_LOG( FG_INPUT, FG_INFO, "Toggling texture" );
 691             if ( globals->get_options()->get_textures() ) {
 692                 globals->get_options()->set_textures( false );
 693                 material_lib.set_step( 1 );
 694             } else {
 695                 globals->get_options()->set_textures( true );
 696                 material_lib.set_step( 0 );
 697             }
 698             return;
 699         case GLUT_KEY_F10: // F10 toggles menu on and off...
 700             FG_LOG(FG_INPUT, FG_INFO, "Invoking call back function");
 701             guiToggleMenu();
 702             return;
 703         case GLUT_KEY_F11: // F11 Altitude Dialog.
 704             FG_LOG(FG_INPUT, FG_INFO, "Invoking Altitude call back function");
 705             NewAltitude( NULL );
 706             return;
 707         case GLUT_KEY_F12: // F12 Heading Dialog...
 708             FG_LOG(FG_INPUT, FG_INFO, "Invoking Heading call back function");
 709             NewHeading( NULL );
 710             return;
 711         case GLUT_KEY_UP:
 712             if ( current_autopilot->get_AltitudeEnabled() ) {
 713                 current_autopilot->AltitudeAdjust( -100 );
 714             } else {
 715                 controls.move_elevator(0.05);
 716             }
 717             return;
 718         case GLUT_KEY_DOWN:
 719             if ( current_autopilot->get_AltitudeEnabled() ) {
 720                 current_autopilot->AltitudeAdjust( 100 );
 721             } else {
 722                 controls.move_elevator(-0.05);
 723             }
 724             return;
 725         case GLUT_KEY_LEFT:
 726             controls.move_aileron(-0.05);
 727             return;
 728         case GLUT_KEY_RIGHT:
 729             controls.move_aileron(0.05);
 730             return;
 731         case GLUT_KEY_HOME: // numeric keypad 1
 732             controls.move_elevator_trim(0.001);
 733             return;
 734         case GLUT_KEY_END: // numeric keypad 7
 735             controls.move_elevator_trim(-0.001);
 736             return;
 737         case GLUT_KEY_INSERT: // numeric keypad Ins
 738             if ( current_autopilot->get_HeadingEnabled() ) {
 739                 current_autopilot->HeadingAdjust( -1 );
 740             } else {
 741                 controls.move_rudder(-0.05);
 742             }
 743             return;
 744         case 13: // numeric keypad Enter
 745             if ( current_autopilot->get_HeadingEnabled() ) {
 746                 current_autopilot->HeadingAdjust( 1 );
 747             } else {
 748                 controls.move_rudder(0.05);
 749             }
 750             return;
 751         case 53: // numeric keypad 5
 752             controls.set_aileron(0.0);
 753             controls.set_elevator(0.0);
 754             controls.set_rudder(0.0);
 755             return;
 756         case GLUT_KEY_PAGE_UP: // numeric keypad 9 (Pg Up)
 757             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 758                 current_autopilot->AutoThrottleAdjust( 5 );
 759             } else {
 760                 controls.move_throttle( FGControls::ALL_ENGINES, 0.01 );
 761             }
 762             return;
 763         case GLUT_KEY_PAGE_DOWN: // numeric keypad 3 (Pg Dn)
 764             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 765                 current_autopilot->AutoThrottleAdjust( -5 );
 766             } else {
 767                 controls.move_throttle( FGControls::ALL_ENGINES, -0.01 );
 768             }
 769             return;
 770         }
 771     }
 772 }
 773
 774