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->get_options()->cycle_view_mode();
 422             if ( globals->get_options()->get_view_mode() ==
 423                  FGOptions::FG_VIEW_FOLLOW )
 424             {
 425                 globals->get_options()->set_view_mode(FGOptions::FG_VIEW_PILOT);
 426                 v->set_goal_view_offset( 0.0 );
 427                 v->set_view_offset( 0.0 );
 428             } else if ( globals->get_options()->get_view_mode() ==
 429                         FGOptions::FG_VIEW_PILOT )
 430             {
 431                 globals->get_options()->set_view_mode( FGOptions::FG_VIEW_FOLLOW );
 432                 v->set_goal_view_offset( FG_PI * 1.75 );
 433                 v->set_view_offset( FG_PI * 1.75 );
 434                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 435             }
 436             fgReshape( globals->get_options()->get_xsize(),
 437                        globals->get_options()->get_ysize() );
 438             return;
 439         case 120: // x key
 440             fov = globals->get_options()->get_fov();
 441             fov /= 1.05;
 442             if ( fov < FG_FOV_MIN ) {
 443                 fov = FG_FOV_MIN;
 444             }
 445             globals->get_options()->set_fov(fov);
 446             // v->force_update_fov_math();
 447             return;
 448         case 122: // z key
 449 #ifndef FG_OLD_WEATHER
 450             tmp = WeatherDatabase->getWeatherVisibility();
 451             tmp *= 1.10;
 452             WeatherDatabase->setWeatherVisibility( tmp );
 453 #else
 454             tmp = current_weather.get_visibility();   // in meters
 455             tmp *= 1.10;
 456             current_weather.set_visibility( tmp );
 457 #endif
 458             return;
 459         case 27: // ESC
 460             // if( fg_DebugOutput ) {
 461             //   fclose( fg_DebugOutput );
 462             // }
 463             FG_LOG( FG_INPUT, FG_ALERT,
 464                     "Program exit requested." );
 465             ConfirmExitDialog();
 466             return;
 467         }
 468     }
 469 }
 470
 471
 472 // Handle "special" keyboard events
 473 void GLUTspecialkey(int k, int x, int y) {
 474     FGViewerRPH *v = (FGViewerRPH *)globals->get_current_view();
 475
 476     FG_LOG( FG_INPUT, FG_DEBUG, "Special key hit = " << k );
 477
 478     if ( puKeyboard(k + PU_KEY_GLUT_SPECIAL_OFFSET, PU_DOWN) ) {
 479         return;
 480     }
 481
 482     if ( GLUT_ACTIVE_SHIFT && glutGetModifiers() ) {
 483         FG_LOG( FG_INPUT, FG_DEBUG, " SHIFTED" );
 484         switch (k) {
 485         case GLUT_KEY_F1: {
 486             ifstream input("fgfs.sav");
 487             if (input.good() && fgLoadFlight(input)) {
 488                 input.close();
 489                 FG_LOG(FG_INPUT, FG_INFO, "Restored flight from fgfs.sav");
 490             } else {
 491                 FG_LOG(FG_INPUT, FG_ALERT, "Cannot load flight from fgfs.sav");
 492             }
 493             return;
 494         }
 495         case GLUT_KEY_F2: {
 496             FG_LOG(FG_INPUT, FG_INFO, "Saving flight");
 497             ofstream output("fgfs.sav");
 498             if (output.good() && fgSaveFlight(output)) {
 499                 output.close();
 500                 FG_LOG(FG_INPUT, FG_INFO, "Saved flight to fgfs.sav");
 501             } else {
 502                 FG_LOG(FG_INPUT, FG_ALERT, "Cannot save flight to fgfs.sav");
 503             }
 504             return;
 505         }
 506         case GLUT_KEY_F3: {
 507           string panel_path =
 508             current_properties.getStringValue("/sim/panel/path",
 509                                               "Panels/Default/default.xml");
 510           FGPanel * new_panel = fgReadPanel(panel_path);
 511           if (new_panel == 0) {
 512             FG_LOG(FG_INPUT, FG_ALERT,
 513                    "Error reading new panel from " << panel_path);
 514             return;
 515           }
 516           FG_LOG(FG_INPUT, FG_INFO, "Loaded new panel from " << panel_path);
 517           delete current_panel;
 518           current_panel = new_panel;
 519           return;
 520         }
 521         case GLUT_KEY_F4: {
 522           FGPath props_path(globals->get_options()->get_fg_root());
 523           props_path.append("preferences.xml");
 524           FG_LOG(FG_INPUT, FG_INFO, "Rereading global preferences");
 525           if (!readPropertyList(props_path.str(), &current_properties)) {
 526             FG_LOG(FG_INPUT, FG_ALERT,
 527                    "Failed to reread global preferences from "
 528                    << props_path.str());
 529           } else {
 530             FG_LOG(FG_INPUT, FG_INFO, "Finished Reading global preferences");
 531           }
 532           return;
 533         }
 534         case GLUT_KEY_F5: {
 535           current_panel->setYOffset(current_panel->getYOffset() - 5);
 536           fgReshape(globals->get_options()->get_xsize(),
 537                     globals->get_options()->get_ysize());
 538           return;
 539         }
 540         case GLUT_KEY_F6: {
 541           current_panel->setYOffset(current_panel->getYOffset() + 5);
 542           fgReshape(globals->get_options()->get_xsize(),
 543                     globals->get_options()->get_ysize());
 544           return;
 545         }
 546         case GLUT_KEY_F7: {
 547           current_panel->setXOffset(current_panel->getXOffset() - 5);
 548           return;
 549         }
 550         case GLUT_KEY_F8: {
 551           current_panel->setXOffset(current_panel->getXOffset() + 5);
 552           return;
 553         }
 554         case GLUT_KEY_END: // numeric keypad 1
 555             v->set_goal_view_offset( FG_PI * 0.75 );
 556             if ( globals->get_options()->get_view_mode() ==
 557                  FGOptions::FG_VIEW_FOLLOW)
 558             {
 559                 globals->get_current_view()->set_pilot_offset(-25.0, 25.0, 1.0);
 560                 v->set_view_offset( FG_PI * 0.75 );
 561             }
 562             return;
 563         case GLUT_KEY_DOWN: // numeric keypad 2
 564             v->set_goal_view_offset( FG_PI );
 565             if ( globals->get_options()->get_view_mode() ==
 566                  FGOptions::FG_VIEW_FOLLOW )
 567             {
 568                 globals->get_current_view()->set_pilot_offset(-25.0, 0.0, 1.0);
 569                 v->set_view_offset( FG_PI );
 570             }
 571             return;
 572         case GLUT_KEY_PAGE_DOWN: // numeric keypad 3
 573             v->set_goal_view_offset( FG_PI * 1.25 );
 574             if ( globals->get_options()->get_view_mode() ==
 575                  FGOptions::FG_VIEW_FOLLOW)
 576             {
 577                 globals->get_current_view()->set_pilot_offset(-25.0, -25.0, 1.0);
 578                 v->set_view_offset( FG_PI * 1.25 );
 579             }
 580             return;
 581         case GLUT_KEY_LEFT: // numeric keypad 4
 582             v->set_goal_view_offset( FG_PI * 0.50 );
 583             if ( globals->get_options()->get_view_mode() ==
 584                  FGOptions::FG_VIEW_FOLLOW )
 585             {
 586                 globals->get_current_view()->set_pilot_offset(0.0, 25.0, 1.0);
 587                 v->set_view_offset( FG_PI * 0.50 );
 588             }
 589             return;
 590         case GLUT_KEY_RIGHT: // numeric keypad 6
 591             v->set_goal_view_offset( FG_PI * 1.50 );
 592             if ( globals->get_options()->get_view_mode() ==
 593                  FGOptions::FG_VIEW_FOLLOW )
 594             {
 595                 globals->get_current_view()->set_pilot_offset(0.0, -25.0, 1.0);
 596                 v->set_view_offset( FG_PI * 1.50 );
 597             }
 598             return;
 599         case GLUT_KEY_HOME: // numeric keypad 7
 600             v->set_goal_view_offset( FG_PI * 0.25 );
 601             if ( globals->get_options()->get_view_mode() ==
 602                  FGOptions::FG_VIEW_FOLLOW )
 603             {
 604                 globals->get_current_view()->set_pilot_offset(25.0, 25.0, 1.0);
 605                 v->set_view_offset( FG_PI * 0.25 );
 606             }
 607             return;
 608         case GLUT_KEY_UP: // numeric keypad 8
 609             v->set_goal_view_offset( 0.00 );
 610             if ( globals->get_options()->get_view_mode() ==
 611                  FGOptions::FG_VIEW_FOLLOW )
 612             {
 613                 globals->get_current_view()->set_pilot_offset(25.0, 0.0, 1.0);
 614                 v->set_view_offset( 0.00 );
 615             }
 616             return;
 617         case GLUT_KEY_PAGE_UP: // numeric keypad 9
 618             v->set_goal_view_offset( FG_PI * 1.75 );
 619             if ( globals->get_options()->get_view_mode() ==
 620                  FGOptions::FG_VIEW_FOLLOW )
 621             {
 622                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 623                 v->set_view_offset( FG_PI * 1.75 );
 624             }
 625             return;
 626         }
 627     } else {
 628         FG_LOG( FG_INPUT, FG_DEBUG, "" );
 629         switch (k) {
 630         case GLUT_KEY_F2: // F2 Reload Tile Cache...
 631             {
 632                 bool freeze;
 633                 FG_LOG(FG_INPUT, FG_INFO, "ReIniting TileCache");
 634                 if ( !freeze )
 635                     globals->set_freeze( true );
 636                 BusyCursor(0);
 637                 if ( global_tile_mgr.init() ) {
 638                     // Load the local scenery data
 639                     global_tile_mgr.update(
 640                         cur_fdm_state->get_Longitude() * RAD_TO_DEG,
 641                         cur_fdm_state->get_Latitude() * RAD_TO_DEG );
 642                 } else {
 643                     FG_LOG( FG_GENERAL, FG_ALERT,
 644                             "Error in Tile Manager initialization!" );
 645                     exit(-1);
 646                 }
 647                 BusyCursor(1);
 648                 if ( !freeze )
 649                    globals->set_freeze( false );
 650                 return;
 651             }
 652         case GLUT_KEY_F3: // F3 Take a screen shot
 653             fgDumpSnapShot();
 654             return;
 655         case GLUT_KEY_F6: // F6 toggles Autopilot target location
 656             if ( current_autopilot->get_HeadingMode() !=
 657                  FGAutopilot::FG_HEADING_WAYPOINT ) {
 658                 current_autopilot->set_HeadingMode(
 659                     FGAutopilot::FG_HEADING_WAYPOINT );
 660                 current_autopilot->set_HeadingEnabled( true );
 661             } else {
 662                 current_autopilot->set_HeadingMode(
 663                     FGAutopilot::FG_HEADING_LOCK );
 664             }
 665             return;
 666         case GLUT_KEY_F8: // F8 toggles fog ... off fastest nicest...
 667             globals->get_options()->cycle_fog();
 668
 669             if ( globals->get_options()->get_fog() ==
 670                  FGOptions::FG_FOG_DISABLED )
 671             {
 672                 FG_LOG( FG_INPUT, FG_INFO, "Fog disabled" );
 673             } else if ( globals->get_options()->get_fog() ==
 674                         FGOptions::FG_FOG_FASTEST )
 675             {
 676                 FG_LOG( FG_INPUT, FG_INFO,
 677                         "Fog enabled, hint set to fastest" );
 678             } else if ( globals->get_options()->get_fog() ==
 679                         FGOptions::FG_FOG_NICEST )
 680             {
 681                 FG_LOG( FG_INPUT, FG_INFO,
 682                         "Fog enabled, hint set to nicest" );
 683             }
 684
 685             return;
 686         case GLUT_KEY_F9: // F9 toggles textures on and off...
 687             FG_LOG( FG_INPUT, FG_INFO, "Toggling texture" );
 688             if ( globals->get_options()->get_textures() ) {
 689                 globals->get_options()->set_textures( false );
 690                 material_lib.set_step( 1 );
 691             } else {
 692                 globals->get_options()->set_textures( true );
 693                 material_lib.set_step( 0 );
 694             }
 695             return;
 696         case GLUT_KEY_F10: // F10 toggles menu on and off...
 697             FG_LOG(FG_INPUT, FG_INFO, "Invoking call back function");
 698             guiToggleMenu();
 699             return;
 700         case GLUT_KEY_F11: // F11 Altitude Dialog.
 701             FG_LOG(FG_INPUT, FG_INFO, "Invoking Altitude call back function");
 702             NewAltitude( NULL );
 703             return;
 704         case GLUT_KEY_F12: // F12 Heading Dialog...
 705             FG_LOG(FG_INPUT, FG_INFO, "Invoking Heading call back function");
 706             NewHeading( NULL );
 707             return;
 708         case GLUT_KEY_UP:
 709             if ( current_autopilot->get_AltitudeEnabled() ) {
 710                 current_autopilot->AltitudeAdjust( -100 );
 711             } else {
 712                 controls.move_elevator(0.05);
 713             }
 714             return;
 715         case GLUT_KEY_DOWN:
 716             if ( current_autopilot->get_AltitudeEnabled() ) {
 717                 current_autopilot->AltitudeAdjust( 100 );
 718             } else {
 719                 controls.move_elevator(-0.05);
 720             }
 721             return;
 722         case GLUT_KEY_LEFT:
 723             controls.move_aileron(-0.05);
 724             return;
 725         case GLUT_KEY_RIGHT:
 726             controls.move_aileron(0.05);
 727             return;
 728         case GLUT_KEY_HOME: // numeric keypad 1
 729             controls.move_elevator_trim(0.001);
 730             return;
 731         case GLUT_KEY_END: // numeric keypad 7
 732             controls.move_elevator_trim(-0.001);
 733             return;
 734         case GLUT_KEY_INSERT: // numeric keypad Ins
 735             if ( current_autopilot->get_HeadingEnabled() ) {
 736                 current_autopilot->HeadingAdjust( -1 );
 737             } else {
 738                 controls.move_rudder(-0.05);
 739             }
 740             return;
 741         case 13: // numeric keypad Enter
 742             if ( current_autopilot->get_HeadingEnabled() ) {
 743                 current_autopilot->HeadingAdjust( 1 );
 744             } else {
 745                 controls.move_rudder(0.05);
 746             }
 747             return;
 748         case 53: // numeric keypad 5
 749             controls.set_aileron(0.0);
 750             controls.set_elevator(0.0);
 751             controls.set_rudder(0.0);
 752             return;
 753         case GLUT_KEY_PAGE_UP: // numeric keypad 9 (Pg Up)
 754             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 755                 current_autopilot->AutoThrottleAdjust( 5 );
 756             } else {
 757                 controls.move_throttle( FGControls::ALL_ENGINES, 0.01 );
 758             }
 759             return;
 760         case GLUT_KEY_PAGE_DOWN: // numeric keypad 3 (Pg Dn)
 761             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 762                 current_autopilot->AutoThrottleAdjust( -5 );
 763             } else {
 764                 controls.move_throttle( FGControls::ALL_ENGINES, -0.01 );
 765             }
 766             return;
 767         }
 768     }
 769 }
 770
 771