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     FGInterface *f;
  82     FGViewerRPH *v;
  83     float fov, tmp;
  84     static bool winding_ccw = true;
  85     int speed;
  86
  87     f = current_aircraft.fdm_state;
  88     v = globals->get_current_view();
  89
  90     FG_LOG( FG_INPUT, FG_DEBUG, "Key hit = " << k );
  91     if ( puKeyboard(k, PU_DOWN) ) {
  92         return;
  93     }
  94
  95     if ( GLUT_ACTIVE_ALT && glutGetModifiers() ) {
  96         FG_LOG( FG_INPUT, FG_DEBUG, " SHIFTED" );
  97         switch (k) {
  98         case 1: // Ctrl-A key
  99             current_autopilot->set_AltitudeMode(
 100                   FGAutopilot::FG_ALTITUDE_LOCK );
 101             current_autopilot->set_AltitudeEnabled(
 102                   ! current_autopilot->get_AltitudeEnabled()
 103                 );
 104             return;
 105         case 7: // Ctrl-G key
 106             current_autopilot->set_AltitudeMode(
 107                   FGAutopilot::FG_ALTITUDE_GS1 );
 108             current_autopilot->set_AltitudeEnabled(
 109                   ! current_autopilot->get_AltitudeEnabled()
 110                 );
 111             return;
 112         case 8: // Ctrl-H key
 113             current_autopilot->set_HeadingMode(
 114                   FGAutopilot::FG_HEADING_LOCK );
 115             current_autopilot->set_HeadingEnabled(
 116                   ! current_autopilot->get_HeadingEnabled()
 117                 );
 118             return;
 119         case 14: // Ctrl-N key
 120             current_autopilot->set_HeadingMode(
 121                   FGAutopilot::FG_HEADING_NAV1 );
 122             current_autopilot->set_HeadingEnabled(
 123                   ! current_autopilot->get_HeadingEnabled()
 124                 );
 125             return;
 126         case 18: // Ctrl-R key
 127             // temporary
 128             winding_ccw = !winding_ccw;
 129             if ( winding_ccw ) {
 130                 glFrontFace ( GL_CCW );
 131             } else {
 132                 glFrontFace ( GL_CW );
 133             }
 134             return;
 135         case 19: // Ctrl-S key
 136             current_autopilot->set_AutoThrottleEnabled(
 137                   ! current_autopilot->get_AutoThrottleEnabled()
 138                 );
 139             return;
 140         case 20: // Ctrl-T key
 141             current_autopilot->set_AltitudeMode(
 142                   FGAutopilot::FG_ALTITUDE_TERRAIN );
 143             current_autopilot->set_AltitudeEnabled(
 144                   ! current_autopilot->get_AltitudeEnabled()
 145                 );
 146             return;
 147         case 21: // Ctrl-U key
 148             // add 1000' of emergency altitude.  Possibly good for
 149             // unflipping yourself :-)
 150             {
 151                 double alt = cur_fdm_state->get_Altitude() + 1000;
 152                 fgFDMForceAltitude( globals->get_options()->get_flight_model(),
 153                                     alt * FEET_TO_METER );
 154             }
 155             return;
 156         case 49: // numeric keypad 1
 157             v->set_goal_view_offset( FG_PI * 0.75 );
 158             if ( globals->get_options()->get_view_mode() ==
 159                  FGOptions::FG_VIEW_FOLLOW )
 160             {
 161                 globals->get_current_view()->set_pilot_offset(-25.0, 25.0, 1.0);
 162                 v->set_view_offset( FG_PI * 0.75 );
 163             }
 164             return;
 165         case 50: // numeric keypad 2
 166             v->set_goal_view_offset( FG_PI );
 167             if ( globals->get_options()->get_view_mode() ==
 168                  FGOptions::FG_VIEW_FOLLOW )
 169             {
 170                 globals->get_current_view()->set_pilot_offset(-25.0, 0.0, 1.0);
 171                 v->set_view_offset( FG_PI );
 172             }
 173             return;
 174         case 51: // numeric keypad 3
 175             v->set_goal_view_offset( FG_PI * 1.25 );
 176             if ( globals->get_options()->get_view_mode() ==
 177                  FGOptions::FG_VIEW_FOLLOW )
 178             {
 179                 globals->get_current_view()->set_pilot_offset(-25.0, -25.0, 1.0);
 180                 v->set_view_offset( FG_PI * 1.25 );
 181             }
 182             return;
 183         case 52: // numeric keypad 4
 184             v->set_goal_view_offset( FG_PI * 0.50 );
 185             if ( globals->get_options()->get_view_mode() ==
 186                  FGOptions::FG_VIEW_FOLLOW )
 187             {
 188                 globals->get_current_view()->set_pilot_offset(0.0, 25.0, 1.0);
 189                 v->set_view_offset( FG_PI * 0.50 );
 190             }
 191             return;
 192         case 54: // numeric keypad 6
 193             v->set_goal_view_offset( FG_PI * 1.50 );
 194             if ( globals->get_options()->get_view_mode() ==
 195                  FGOptions::FG_VIEW_FOLLOW )
 196             {
 197                 globals->get_current_view()->set_pilot_offset(0.0, -25.0, 1.0);
 198                 v->set_view_offset( FG_PI * 1.50 );
 199             }
 200             return;
 201         case 55: // numeric keypad 7
 202             v->set_goal_view_offset( FG_PI * 0.25 );
 203             if ( globals->get_options()->get_view_mode() ==
 204                  FGOptions::FG_VIEW_FOLLOW )
 205             {
 206                 globals->get_current_view()->set_pilot_offset(25.0, 25.0, 1.0);
 207                 v->set_view_offset( FG_PI * 0.25 );
 208             }
 209             return;
 210         case 56: // numeric keypad 8
 211             v->set_goal_view_offset( 0.00 );
 212             if ( globals->get_options()->get_view_mode() ==
 213                  FGOptions::FG_VIEW_FOLLOW )
 214             {
 215                 globals->get_current_view()->set_pilot_offset(25.0, 0.0, 1.0);
 216                 v->set_view_offset( 0.00 );
 217             }
 218             return;
 219         case 57: // numeric keypad 9
 220             v->set_goal_view_offset( FG_PI * 1.75 );
 221             if ( globals->get_options()->get_view_mode() ==
 222                  FGOptions::FG_VIEW_FOLLOW )
 223             {
 224                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 225                 v->set_view_offset( FG_PI * 1.75 );
 226             }
 227             return;
 228         case 65: // A key
 229             speed = globals->get_options()->get_speed_up();
 230             speed--;
 231             if ( speed < 1 ) {
 232                 speed = 1;
 233             }
 234             globals->get_options()->set_speed_up( speed );
 235             return;
 236         case 72: // H key
 237             // status = globals->get_options()->get_hud_status();
 238             // globals->get_options()->set_hud_status(!status);
 239             HUD_brightkey( true );
 240             return;
 241         case 73: // I key
 242             // Minimal Hud
 243             fgHUDInit2(&current_aircraft);
 244             return;
 245         case 77: // M key
 246             globals->inc_warp( -60 );
 247             fgUpdateSkyAndLightingParams();
 248             return;
 249         case 80: // P key
 250             globals->get_options()->toggle_panel();
 251             break;
 252         case 84: // T key
 253             globals->inc_warp_delta( -30 );
 254             fgUpdateSkyAndLightingParams();
 255             return;
 256         case 87: // W key
 257 #if defined(FX) && !defined(WIN32)
 258             global_fullscreen = ( !global_fullscreen );
 259 #  if defined(XMESA_FX_FULLSCREEN) && defined(XMESA_FX_WINDOW)
 260             XMesaSetFXmode( global_fullscreen ?
 261                             XMESA_FX_FULLSCREEN : XMESA_FX_WINDOW );
 262 #  endif
 263 #endif
 264             return;
 265         case 88: // X key
 266             fov = globals->get_options()->get_fov();
 267             fov *= 1.05;
 268             if ( fov > FG_FOV_MAX ) {
 269                 fov = FG_FOV_MAX;
 270             }
 271             globals->get_options()->set_fov(fov);
 272             // v->force_update_fov_math();
 273             return;
 274         case 90: // Z key
 275 #ifndef FG_OLD_WEATHER
 276             tmp = WeatherDatabase->getWeatherVisibility();
 277             tmp /= 1.10;
 278             WeatherDatabase->setWeatherVisibility( tmp );
 279 #else
 280             tmp = current_weather.get_visibility();   // in meters
 281             tmp /= 1.10;
 282             current_weather.set_visibility( tmp );
 283 #endif
 284             return;
 285         }
 286     } else {
 287         FG_LOG( FG_INPUT, FG_DEBUG, "" );
 288         switch (k) {
 289         case 50: // numeric keypad 2
 290             if ( current_autopilot->get_AltitudeEnabled() ) {
 291                 current_autopilot->AltitudeAdjust( 100 );
 292             } else {
 293                 controls.move_elevator(-0.05);
 294             }
 295             return;
 296         case 56: // numeric keypad 8
 297             if ( current_autopilot->get_AltitudeEnabled() ) {
 298                 current_autopilot->AltitudeAdjust( -100 );
 299             } else {
 300                 controls.move_elevator(0.05);
 301             }
 302             return;
 303         case 49: // numeric keypad 1
 304             controls.move_elevator_trim(-0.001);
 305             return;
 306         case 55: // numeric keypad 7
 307             controls.move_elevator_trim(0.001);
 308             return;
 309         case 52: // numeric keypad 4
 310             controls.move_aileron(-0.05);
 311             return;
 312         case 54: // numeric keypad 6
 313             controls.move_aileron(0.05);
 314             return;
 315         case 48: // numeric keypad Ins
 316             if ( current_autopilot->get_HeadingEnabled() ) {
 317                 current_autopilot->HeadingAdjust( -1 );
 318             } else {
 319                 controls.move_rudder(-0.05);
 320             }
 321             return;
 322         case 13: // numeric keypad Enter
 323             if ( current_autopilot->get_HeadingEnabled() ) {
 324                 current_autopilot->HeadingAdjust( 1 );
 325             } else {
 326                 controls.move_rudder(0.05);
 327             }
 328             return;
 329         case 53: // numeric keypad 5
 330             controls.set_aileron(0.0);
 331             controls.set_elevator(0.0);
 332             controls.set_rudder(0.0);
 333             return;
 334         case 57: // numeric keypad 9 (Pg Up)
 335             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 336                 current_autopilot->AutoThrottleAdjust( 5 );
 337             } else {
 338                 controls.move_throttle( FGControls::ALL_ENGINES, 0.01 );
 339             }
 340             return;
 341         case 51: // numeric keypad 3 (Pg Dn)
 342             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 343                 current_autopilot->AutoThrottleAdjust( -5 );
 344             } else {
 345                 controls.move_throttle( FGControls::ALL_ENGINES, -0.01 );
 346             }
 347             return;
 348         case 91: // [ key
 349             controls.move_flaps(-0.34);
 350             FG_LOG( FG_INPUT, FG_INFO,
 351                     "Set flaps to " << controls.get_flaps() );
 352             return;
 353         case 93: // ] key
 354             controls.move_flaps(0.34);
 355             FG_LOG( FG_INPUT, FG_INFO,
 356                     "Set flaps to " << controls.get_flaps() );
 357             return;
 358         case 97: // a key
 359             speed = globals->get_options()->get_speed_up();
 360             speed++;
 361             globals->get_options()->set_speed_up( speed );
 362             return;
 363         case 98: // b key
 364             int b_ret;
 365             double b_set;
 366             b_ret = int( controls.get_brake( 0 ) );
 367             b_set = double(!b_ret);
 368             controls.set_brake( FGControls::ALL_WHEELS, b_set);
 369             return;
 370         case 44: // , key
 371             if (controls.get_brake(0) > 0.0) {
 372                 controls.set_brake(0, 0.0);
 373             } else {
 374                 controls.set_brake(0, 1.0);
 375             }
 376             return;
 377         case 46: // . key
 378             if (controls.get_brake(1) > 0.0) {
 379                 controls.set_brake(1, 0.0);
 380             } else {
 381                 controls.set_brake(1, 1.0);
 382             }
 383             return;
 384         case 104: // h key
 385             HUD_masterswitch( true );
 386             return;
 387         case 105: // i key
 388             fgHUDInit(&current_aircraft);  // normal HUD
 389             return;
 390         case 109: // m key
 391             globals->inc_warp( 60 );
 392             fgUpdateSkyAndLightingParams();
 393             return;
 394         case 112: // p key
 395             globals->set_freeze( ! globals->get_freeze() );
 396
 397             {
 398                 FGBucket p( f->get_Longitude() * RAD_TO_DEG,
 399                             f->get_Latitude() * RAD_TO_DEG );
 400                 FGPath tile_path( globals->get_options()->get_fg_root() );
 401                 tile_path.append( "Scenery" );
 402                 tile_path.append( p.gen_base_path() );
 403                 tile_path.append( p.gen_index_str() );
 404
 405                 // printf position and attitude information
 406                 FG_LOG( FG_INPUT, FG_INFO,
 407                         "Lon = " << f->get_Longitude() * RAD_TO_DEG
 408                         << "  Lat = " << f->get_Latitude() * RAD_TO_DEG
 409                         << "  Altitude = " << f->get_Altitude() * FEET_TO_METER
 410                         );
 411                 FG_LOG( FG_INPUT, FG_INFO,
 412                         "Heading = " << f->get_Psi() * RAD_TO_DEG
 413                         << "  Roll = " << f->get_Phi() * RAD_TO_DEG
 414                         << "  Pitch = " << f->get_Theta() * RAD_TO_DEG );
 415                 FG_LOG( FG_INPUT, FG_INFO, tile_path.c_str());
 416             }
 417             return;
 418         case 116: // t key
 419             globals->inc_warp_delta( 30 );
 420             fgUpdateSkyAndLightingParams();
 421             return;
 422         case 118: // v key
 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             fgReshape( globals->get_options()->get_xsize(),
 439                        globals->get_options()->get_ysize() );
 440             return;
 441         case 120: // x key
 442             fov = globals->get_options()->get_fov();
 443             fov /= 1.05;
 444             if ( fov < FG_FOV_MIN ) {
 445                 fov = FG_FOV_MIN;
 446             }
 447             globals->get_options()->set_fov(fov);
 448             // v->force_update_fov_math();
 449             return;
 450         case 122: // z key
 451 #ifndef FG_OLD_WEATHER
 452             tmp = WeatherDatabase->getWeatherVisibility();
 453             tmp *= 1.10;
 454             WeatherDatabase->setWeatherVisibility( tmp );
 455 #else
 456             tmp = current_weather.get_visibility();   // in meters
 457             tmp *= 1.10;
 458             current_weather.set_visibility( tmp );
 459 #endif
 460             return;
 461         case 27: // ESC
 462             // if( fg_DebugOutput ) {
 463             //   fclose( fg_DebugOutput );
 464             // }
 465             FG_LOG( FG_INPUT, FG_ALERT,
 466                     "Program exit requested." );
 467             ConfirmExitDialog();
 468             return;
 469         }
 470     }
 471 }
 472
 473
 474 // Handle "special" keyboard events
 475 void GLUTspecialkey(int k, int x, int y) {
 476     FGViewerRPH *v;
 477
 478     v = globals->get_current_view();
 479
 480     FG_LOG( FG_INPUT, FG_DEBUG, "Special key hit = " << k );
 481
 482     if ( puKeyboard(k + PU_KEY_GLUT_SPECIAL_OFFSET, PU_DOWN) ) {
 483         return;
 484     }
 485
 486     if ( GLUT_ACTIVE_SHIFT && glutGetModifiers() ) {
 487         FG_LOG( FG_INPUT, FG_DEBUG, " SHIFTED" );
 488         switch (k) {
 489         case GLUT_KEY_F1: {
 490             ifstream input("fgfs.sav");
 491             if (input.good() && fgLoadFlight(input)) {
 492                 input.close();
 493                 FG_LOG(FG_INPUT, FG_INFO, "Restored flight from fgfs.sav");
 494             } else {
 495                 FG_LOG(FG_INPUT, FG_ALERT, "Cannot load flight from fgfs.sav");
 496             }
 497             return;
 498         }
 499         case GLUT_KEY_F2: {
 500             FG_LOG(FG_INPUT, FG_INFO, "Saving flight");
 501             ofstream output("fgfs.sav");
 502             if (output.good() && fgSaveFlight(output)) {
 503                 output.close();
 504                 FG_LOG(FG_INPUT, FG_INFO, "Saved flight to fgfs.sav");
 505             } else {
 506                 FG_LOG(FG_INPUT, FG_ALERT, "Cannot save flight to fgfs.sav");
 507             }
 508             return;
 509         }
 510         case GLUT_KEY_F3: {
 511           string panel_path =
 512             current_properties.getStringValue("/sim/panel/path",
 513                                               "Panels/Default/default.xml");
 514           FGPanel * new_panel = fgReadPanel(panel_path);
 515           if (new_panel == 0) {
 516             FG_LOG(FG_INPUT, FG_ALERT,
 517                    "Error reading new panel from " << panel_path);
 518             return;
 519           }
 520           FG_LOG(FG_INPUT, FG_INFO, "Loaded new panel from " << panel_path);
 521           delete current_panel;
 522           current_panel = new_panel;
 523           return;
 524         }
 525         case GLUT_KEY_F4: {
 526           FGPath props_path(globals->get_options()->get_fg_root());
 527           props_path.append("preferences.xml");
 528           FG_LOG(FG_INPUT, FG_INFO, "Rereading global preferences");
 529           if (!readPropertyList(props_path.str(), &current_properties)) {
 530             FG_LOG(FG_INPUT, FG_ALERT,
 531                    "Failed to reread global preferences from "
 532                    << props_path.str());
 533           } else {
 534             FG_LOG(FG_INPUT, FG_INFO, "Finished Reading global preferences");
 535           }
 536           return;
 537         }
 538         case GLUT_KEY_F5: {
 539           current_panel->setYOffset(current_panel->getYOffset() - 5);
 540           fgReshape(globals->get_options()->get_xsize(),
 541                     globals->get_options()->get_ysize());
 542           return;
 543         }
 544         case GLUT_KEY_F6: {
 545           current_panel->setYOffset(current_panel->getYOffset() + 5);
 546           fgReshape(globals->get_options()->get_xsize(),
 547                     globals->get_options()->get_ysize());
 548           return;
 549         }
 550         case GLUT_KEY_F7: {
 551           current_panel->setXOffset(current_panel->getXOffset() - 5);
 552           return;
 553         }
 554         case GLUT_KEY_F8: {
 555           current_panel->setXOffset(current_panel->getXOffset() + 5);
 556           return;
 557         }
 558         case GLUT_KEY_END: // numeric keypad 1
 559             v->set_goal_view_offset( FG_PI * 0.75 );
 560             if ( globals->get_options()->get_view_mode() ==
 561                  FGOptions::FG_VIEW_FOLLOW)
 562             {
 563                 globals->get_current_view()->set_pilot_offset(-25.0, 25.0, 1.0);
 564                 v->set_view_offset( FG_PI * 0.75 );
 565             }
 566             return;
 567         case GLUT_KEY_DOWN: // numeric keypad 2
 568             v->set_goal_view_offset( FG_PI );
 569             if ( globals->get_options()->get_view_mode() ==
 570                  FGOptions::FG_VIEW_FOLLOW )
 571             {
 572                 globals->get_current_view()->set_pilot_offset(-25.0, 0.0, 1.0);
 573                 v->set_view_offset( FG_PI );
 574             }
 575             return;
 576         case GLUT_KEY_PAGE_DOWN: // numeric keypad 3
 577             v->set_goal_view_offset( FG_PI * 1.25 );
 578             if ( globals->get_options()->get_view_mode() ==
 579                  FGOptions::FG_VIEW_FOLLOW)
 580             {
 581                 globals->get_current_view()->set_pilot_offset(-25.0, -25.0, 1.0);
 582                 v->set_view_offset( FG_PI * 1.25 );
 583             }
 584             return;
 585         case GLUT_KEY_LEFT: // numeric keypad 4
 586             v->set_goal_view_offset( FG_PI * 0.50 );
 587             if ( globals->get_options()->get_view_mode() ==
 588                  FGOptions::FG_VIEW_FOLLOW )
 589             {
 590                 globals->get_current_view()->set_pilot_offset(0.0, 25.0, 1.0);
 591                 v->set_view_offset( FG_PI * 0.50 );
 592             }
 593             return;
 594         case GLUT_KEY_RIGHT: // numeric keypad 6
 595             v->set_goal_view_offset( FG_PI * 1.50 );
 596             if ( globals->get_options()->get_view_mode() ==
 597                  FGOptions::FG_VIEW_FOLLOW )
 598             {
 599                 globals->get_current_view()->set_pilot_offset(0.0, -25.0, 1.0);
 600                 v->set_view_offset( FG_PI * 1.50 );
 601             }
 602             return;
 603         case GLUT_KEY_HOME: // numeric keypad 7
 604             v->set_goal_view_offset( FG_PI * 0.25 );
 605             if ( globals->get_options()->get_view_mode() ==
 606                  FGOptions::FG_VIEW_FOLLOW )
 607             {
 608                 globals->get_current_view()->set_pilot_offset(25.0, 25.0, 1.0);
 609                 v->set_view_offset( FG_PI * 0.25 );
 610             }
 611             return;
 612         case GLUT_KEY_UP: // numeric keypad 8
 613             v->set_goal_view_offset( 0.00 );
 614             if ( globals->get_options()->get_view_mode() ==
 615                  FGOptions::FG_VIEW_FOLLOW )
 616             {
 617                 globals->get_current_view()->set_pilot_offset(25.0, 0.0, 1.0);
 618                 v->set_view_offset( 0.00 );
 619             }
 620             return;
 621         case GLUT_KEY_PAGE_UP: // numeric keypad 9
 622             v->set_goal_view_offset( FG_PI * 1.75 );
 623             if ( globals->get_options()->get_view_mode() ==
 624                  FGOptions::FG_VIEW_FOLLOW )
 625             {
 626                 globals->get_current_view()->set_pilot_offset(25.0, -25.0, 1.0);
 627                 v->set_view_offset( FG_PI * 1.75 );
 628             }
 629             return;
 630         }
 631     } else {
 632         FG_LOG( FG_INPUT, FG_DEBUG, "" );
 633         switch (k) {
 634         case GLUT_KEY_F2: // F2 Reload Tile Cache...
 635             {
 636                 bool freeze;
 637                 FG_LOG(FG_INPUT, FG_INFO, "ReIniting TileCache");
 638                 if ( !freeze )
 639                     globals->set_freeze( true );
 640                 BusyCursor(0);
 641                 if ( global_tile_mgr.init() ) {
 642                     // Load the local scenery data
 643                     global_tile_mgr.update(
 644                         cur_fdm_state->get_Longitude() * RAD_TO_DEG,
 645                         cur_fdm_state->get_Latitude() * RAD_TO_DEG );
 646                 } else {
 647                     FG_LOG( FG_GENERAL, FG_ALERT,
 648                             "Error in Tile Manager initialization!" );
 649                     exit(-1);
 650                 }
 651                 BusyCursor(1);
 652                 if ( !freeze )
 653                    globals->set_freeze( false );
 654                 return;
 655             }
 656         case GLUT_KEY_F3: // F3 Take a screen shot
 657             fgDumpSnapShot();
 658             return;
 659         case GLUT_KEY_F6: // F6 toggles Autopilot target location
 660             if ( current_autopilot->get_HeadingMode() !=
 661                  FGAutopilot::FG_HEADING_WAYPOINT ) {
 662                 current_autopilot->set_HeadingMode(
 663                     FGAutopilot::FG_HEADING_WAYPOINT );
 664                 current_autopilot->set_HeadingEnabled( true );
 665             } else {
 666                 current_autopilot->set_HeadingMode(
 667                     FGAutopilot::FG_HEADING_LOCK );
 668             }
 669             return;
 670         case GLUT_KEY_F8: // F8 toggles fog ... off fastest nicest...
 671             globals->get_options()->cycle_fog();
 672
 673             if ( globals->get_options()->get_fog() ==
 674                  FGOptions::FG_FOG_DISABLED )
 675             {
 676                 FG_LOG( FG_INPUT, FG_INFO, "Fog disabled" );
 677             } else if ( globals->get_options()->get_fog() ==
 678                         FGOptions::FG_FOG_FASTEST )
 679             {
 680                 FG_LOG( FG_INPUT, FG_INFO,
 681                         "Fog enabled, hint set to fastest" );
 682             } else if ( globals->get_options()->get_fog() ==
 683                         FGOptions::FG_FOG_NICEST )
 684             {
 685                 FG_LOG( FG_INPUT, FG_INFO,
 686                         "Fog enabled, hint set to nicest" );
 687             }
 688
 689             return;
 690         case GLUT_KEY_F9: // F9 toggles textures on and off...
 691             FG_LOG( FG_INPUT, FG_INFO, "Toggling texture" );
 692             if ( globals->get_options()->get_textures() ) {
 693                 globals->get_options()->set_textures( false );
 694                 material_lib.set_step( 1 );
 695             } else {
 696                 globals->get_options()->set_textures( true );
 697                 material_lib.set_step( 0 );
 698             }
 699             return;
 700         case GLUT_KEY_F10: // F10 toggles menu on and off...
 701             FG_LOG(FG_INPUT, FG_INFO, "Invoking call back function");
 702             guiToggleMenu();
 703             return;
 704         case GLUT_KEY_F11: // F11 Altitude Dialog.
 705             FG_LOG(FG_INPUT, FG_INFO, "Invoking Altitude call back function");
 706             NewAltitude( NULL );
 707             return;
 708         case GLUT_KEY_F12: // F12 Heading Dialog...
 709             FG_LOG(FG_INPUT, FG_INFO, "Invoking Heading call back function");
 710             NewHeading( NULL );
 711             return;
 712         case GLUT_KEY_UP:
 713             if ( current_autopilot->get_AltitudeEnabled() ) {
 714                 current_autopilot->AltitudeAdjust( -100 );
 715             } else {
 716                 controls.move_elevator(0.05);
 717             }
 718             return;
 719         case GLUT_KEY_DOWN:
 720             if ( current_autopilot->get_AltitudeEnabled() ) {
 721                 current_autopilot->AltitudeAdjust( 100 );
 722             } else {
 723                 controls.move_elevator(-0.05);
 724             }
 725             return;
 726         case GLUT_KEY_LEFT:
 727             controls.move_aileron(-0.05);
 728             return;
 729         case GLUT_KEY_RIGHT:
 730             controls.move_aileron(0.05);
 731             return;
 732         case GLUT_KEY_HOME: // numeric keypad 1
 733             controls.move_elevator_trim(0.001);
 734             return;
 735         case GLUT_KEY_END: // numeric keypad 7
 736             controls.move_elevator_trim(-0.001);
 737             return;
 738         case GLUT_KEY_INSERT: // numeric keypad Ins
 739             if ( current_autopilot->get_HeadingEnabled() ) {
 740                 current_autopilot->HeadingAdjust( -1 );
 741             } else {
 742                 controls.move_rudder(-0.05);
 743             }
 744             return;
 745         case 13: // numeric keypad Enter
 746             if ( current_autopilot->get_HeadingEnabled() ) {
 747                 current_autopilot->HeadingAdjust( 1 );
 748             } else {
 749                 controls.move_rudder(0.05);
 750             }
 751             return;
 752         case 53: // numeric keypad 5
 753             controls.set_aileron(0.0);
 754             controls.set_elevator(0.0);
 755             controls.set_rudder(0.0);
 756             return;
 757         case GLUT_KEY_PAGE_UP: // numeric keypad 9 (Pg Up)
 758             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 759                 current_autopilot->AutoThrottleAdjust( 5 );
 760             } else {
 761                 controls.move_throttle( FGControls::ALL_ENGINES, 0.01 );
 762             }
 763             return;
 764         case GLUT_KEY_PAGE_DOWN: // numeric keypad 3 (Pg Dn)
 765             if ( current_autopilot->get_AutoThrottleEnabled() ) {
 766                 current_autopilot->AutoThrottleAdjust( -5 );
 767             } else {
 768                 controls.move_throttle( FGControls::ALL_ENGINES, -0.01 );
 769             }
 770             return;
 771         }
 772     }
 773 }
 774
 775