X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FGUI%2Fgui.cxx;h=853b9516d8ebcd6119a785865c64a664e91233b6;hb=dd440e78292ccda6423aff9adfe63915be2c0a65;hp=d183e766cdb882ce3fd62314c69723edee649aed;hpb=3ae06c157e8fd0f312f96a31fe26e86b07829a4d;p=flightgear.git

diff --git a/src/GUI/gui.cxx b/src/GUI/gui.cxx
index d183e766c..853b9516d 100644
--- a/src/GUI/gui.cxx
+++ b/src/GUI/gui.cxx
@@ -28,9 +28,9 @@
 #  include <config.h>
 #endif
 
-#include <Include/compiler.h>
+#include <simgear/compiler.h>
 
-#ifdef FG_MATH_EXCEPTION_CLASH
+#ifdef SG_MATH_EXCEPTION_CLASH
 #  include <math.h>
 #endif
 
@@ -39,105 +39,71 @@
 #endif
 
 #include <GL/glut.h>
-#include <XGL/xgl.h>
+#include <GL/gl.h>
 
 #if defined(FX) && defined(XMESA)
 #  include <GL/xmesa.h>
 #endif
 
+#include STL_FSTREAM
 #include STL_STRING
 
 #include <stdlib.h>
 #include <string.h>
 
+#include <simgear/constants.h>
+#include <simgear/debug/logstream.hxx>
+#include <simgear/misc/sg_path.hxx>
+#include <simgear/screen/screen-dump.hxx>
+
 #include <Include/general.hxx>
-#include <Include/fg_constants.h>
-#include <Debug/logstream.hxx>
 #include <Aircraft/aircraft.hxx>
 #include <Airports/simple.hxx>
+#include <Autopilot/auto_gui.hxx>
+#include <Autopilot/newauto.hxx>
 #include <Cockpit/panel.hxx>
 #include <Controls/controls.hxx>
 #include <FDM/flight.hxx>
-#include <Main/options.hxx>
 #include <Main/fg_init.hxx>
-#include <Main/views.hxx>
-#include <Misc/fgpath.hxx>
+#include <Main/fg_io.hxx>
+#include <Main/globals.hxx>
+#include <Main/fg_props.hxx>
+#include <Main/options.hxx>
+#include <Main/viewmgr.hxx>
+
 #ifdef FG_NETWORK_OLK
 #include <NetworkOLK/network.h>
 #endif
-#include <Screen/screen-dump.hxx>
-#include <Time/fg_time.hxx>
-
+   
 #if defined( WIN32 ) && !defined( __CYGWIN__ )
-#  include <Screen/win32-printer.h>
-#  include <Screen/GlBitmaps.h>
+#  include <simgear/screen/win32-printer.h>
+#  include <simgear/screen/GlBitmaps.h>
 #endif
 
-/*
- * trackball.h
- * A virtual trackball implementation
- * Written by Gavin Bell for Silicon Graphics, November 1988.
- */
-/*
- * Pass the x and y coordinates of the last and current positions of
- * the mouse, scaled so they are from (-1.0 ... 1.0).
- *
- * The resulting rotation is returned as a quaternion rotation in the
- * first paramater.
- */
-void
-trackball(float q[4], float p1x, float p1y, float p2x, float p2y);
-
-/*
- * Given two quaternions, add them together to get a third quaternion.
- * Adding quaternions to get a compound rotation is analagous to adding
- * translations to get a compound translation.  When incrementally
- * adding rotations, the first argument here should be the new
-
-  * rotation, the second and third the total rotation (which will be
- * over-written with the resulting new total rotation).
- */
-void
-add_quats(float *q1, float *q2, float *dest);
-
-/*
- * A useful function, builds a rotation matrix in Matrix based on
- * given quaternion.
- */
-void
-build_rotmatrix(float m[4][4], float q[4]);
-
-/*
- * This function computes a quaternion based on an axis (defined by
- * the given vector) and an angle about which to rotate.  The angle is
- * expressed in radians.  The result is put into the third argument.
- */
-void
-axis_to_quat(float a[3], float phi, float q[4]);
-
-
 #include "gui.h"
+#include "gui_local.hxx"
+#include "apt_dlg.hxx"
+#include "net_dlg.hxx"
+#include "sgVec3Slider.hxx"
 
-FG_USING_STD(string);
+SG_USING_STD(string);
 
-#ifndef FG_HAVE_NATIVE_SGI_COMPILERS
-FG_USING_STD(cout);
+#ifndef SG_HAVE_NATIVE_SGI_COMPILERS
+SG_USING_STD(cout);
 #endif
 
-#if defined(WIN32) || defined(__CYGWIN32__)
-#define WIN32_CURSOR_TWEAKS
-#elif (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
-#define X_CURSOR_TWEAKS
-#endif
+#ifdef  _MSC_VER
+#define  snprintf    _snprintf
+#endif   /* _MSC_VER */
 
-// hack, should come from an include someplace
+// main.cxx hack, should come from an include someplace
 extern void fgInitVisuals( void );
 extern void fgReshape( int width, int height );
 extern void fgRenderFrame( void );
 
 puFont guiFnt = 0;
 fntTexFont *guiFntHandle = 0;
-
+int gui_menu_on = 0;
 static puMenuBar    *mainMenuBar = 0;
 //static puButton     *hideMenuButton = 0;
 
@@ -167,489 +133,9 @@ char *gui_msg_RESET;  // "RESET"
 
 static char global_dialog_string[256];
 
-// from autopilot.cxx
-extern void NewAltitude( puObject *cb );
-extern void NewHeading( puObject *cb );
-extern void fgAPAdjust( puObject * );
-extern void NewTgtAirport( puObject *cb );
-bool fgAPTerrainFollowEnabled( void );
-bool fgAPAltitudeEnabled( void );
-bool fgAPHeadingEnabled( void );
-bool fgAPWayPointEnabled( void );
-bool fgAPAutoThrottleEnabled( void );
-
 // from cockpit.cxx
 extern void fgLatLonFormatToggle( puObject *);
 
-/* --------------------------------------------------------------------
-Mouse stuff
----------------------------------------------------------------------*/
-
-static int _mX = 0;
-static int _mY = 0;
-static int _savedX = 0;
-static int _savedY = 0;
-static int last_buttons = 0 ;
-static int mouse_active = 0;
-static int menu_on = 0;
-static int mouse_joystick_control = 0;
-
-//static time_t mouse_off_time;
-//static int mouse_timed_out;
-
-// to allow returning to previous view
-// on second left click in MOUSE_VIEW mode
-// This has file scope so that it can be reset
-// if the little rodent is moved  NHV
-static  int _mVtoggle;
-
-// we break up the glutGetModifiers return mask
-// once per loop and stash what we need in these
-static int glut_active_shift;
-static int glut_active_ctrl;
-static int glut_active_alt;
-
-static float lastquat[4];
-static float curquat[4];
-static float _quat0[4];
-float quat_mat[4][4];
-
-// uncomment this for view to exactly follow mouse in MOUSE_VIEW mode
-// else smooth out the view panning to .01 radian per frame
-// see view_offset smoothing mechanism in main.cxx
-#define NO_SMOOTH_MOUSE_VIEW
-
-// uncomment following to
-#define RESET_VIEW_ON_LEAVING_MOUSE_VIEW
-
-/* --------------------------------------------------------------------
-Support for mouse as control yoke (david@megginson.com)
-
-- right button toggles between pointer and yoke
-- horizontal drag with no buttons moves ailerons
-- vertical drag with no buttons moves elevators
-- horizontal drag with left button moves brakes (left=on)
-- vertical drag with left button moves throttle (up=more)
-- horizontal drag with middle button moves rudder
-- vertical drag with middle button moves trim
-
-For the *_sensitivity variables, a lower number means more sensitive.
-
-TODO: figure out how to keep pointer from leaving window in yoke mode.
-TODO: add thresholds and null zones
-TODO: sensitivity should be configurable at user option.
-TODO: allow differential braking (this will be useful if FlightGear
-      ever supports tail-draggers like the DC-3)
----------------------------------------------------------------------*/
-
-typedef enum {
-    MOUSE_POINTER,
-    MOUSE_YOKE,
-    MOUSE_VIEW
-} MouseMode;
-
-MouseMode mouse_mode = MOUSE_POINTER;
-
-static double aileron_sensitivity = 1.0/500.0;
-static double elevator_sensitivity = 1.0/500.0;
-static double brake_sensitivity = 1.0/250.0;
-static double throttle_sensitivity = 1.0/250.0;
-static double rudder_sensitivity = 1.0/500.0;
-static double trim_sensitivity = 1.0/1000.0;
-
-static inline void Quat0( void ) {
-    curquat[0] = _quat0[0];
-    curquat[1] = _quat0[1];
-    curquat[2] = _quat0[2];
-    curquat[3] = _quat0[3];
-}
-
-static inline int left_button( void ) {
-    return( last_buttons & (1 << GLUT_LEFT_BUTTON) );
-}
-
-static inline int middle_button( void ) {
-    return( last_buttons & (1 << GLUT_MIDDLE_BUTTON) );
-}
-
-static inline int right_button( void ) {
-    return( last_buttons & (1 << GLUT_RIGHT_BUTTON) );
-}
-
-static inline void TurnCursorOn( void )
-{
-    mouse_active = ~0;
-#if defined(WIN32_CURSOR_TWEAKS)
-    switch (mouse_mode) {
-        case MOUSE_POINTER:
-            glutSetCursor(GLUT_CURSOR_INHERIT);
-            break;
-        case MOUSE_YOKE:
-            glutSetCursor(GLUT_CURSOR_CROSSHAIR);
-            break;
-        case MOUSE_VIEW:
-            glutSetCursor(GLUT_CURSOR_LEFT_RIGHT);
-            break;
-    }
-#endif
-#if defined(X_CURSOR_TWEAKS)
-    glutWarpPointer( current_view.get_winWidth()/2, current_view.get_winHeight()/2);
-#endif
-}
-
-static inline void TurnCursorOff( void )
-{
-    mouse_active = 0;
-#if defined(WIN32_CURSOR_TWEAKS)
-    glutSetCursor(GLUT_CURSOR_NONE);
-#elif defined(X_CURSOR_TWEAKS)
-    glutWarpPointer( current_view.get_winWidth(), current_view.get_winHeight());
-#endif
-}
-
-void maybeToggleMouse( void )
-{
-#if defined(WIN32_CURSOR_TWEAKS)
-    static int first_time = ~0;
-    static int mouse_changed = 0;
-
-    if ( first_time ) {
-        if(!mouse_active) {
-            mouse_changed = ~mouse_changed;
-            TurnCursorOn();
-        }
-    } else {
-        if( mouse_mode != MOUSE_POINTER )
-            return;
-        if( mouse_changed ) {
-            mouse_changed = ~mouse_changed;
-            if(mouse_active) {
-                TurnCursorOff();
-            }
-        }
-    }
-    first_time = ~first_time;
-#endif // #ifdef WIN32
-}
-
-// Call with FALSE to init and TRUE to restore
-void BusyCursor( int restore )
-{
-    static GLenum cursor = (GLenum) 0;
-    if( restore ) {
-        glutSetCursor(cursor);
-    } else {
-        cursor = (GLenum) glutGet( (GLenum) GLUT_WINDOW_CURSOR );
-#if defined(WIN32_CURSOR_TWEAKS)
-        TurnCursorOn();
-#endif
-        glutSetCursor( GLUT_CURSOR_WAIT );
-    }
-}
-
-int guiGetMouseButton(void)
-{
-    return last_buttons;
-}
-
-void guiGetMouse(int *x, int *y)
-{
-    *x = _mX;
-    *y = _mY;
-};
-
-void guiMotionFunc ( int x, int y )
-{
-    int ww, wh, need_warp = 0;
-    float W, H;
-    double offset;
-//  FGTime *t = FGTime::cur_time_params;
-//  if( mouse_timed_out ) {
-//      if( t->get_cur_time() > mouse_off_time ) {
-//          moused_timed_out = 0;
-//          TurnCursorOn();
-//          glutPostRedisplay () ;
-//      }
-//  }
-
-    if (mouse_mode == MOUSE_POINTER) {
-        puMouse ( x, y ) ;
-        glutPostRedisplay () ;
-    } else {
-        if( x == _mX && y == _mY)
-            return;
-        
-        // reset left click MOUSE_VIEW toggle feature
-        _mVtoggle = 0;
-        
-        ww = current_view.get_winWidth();
-        wh = current_view.get_winHeight();
-        
-        switch (mouse_mode) {
-            case MOUSE_YOKE:
-                if( !mouse_joystick_control ) {
-                    mouse_joystick_control = 1;
-                    current_options.set_control_mode( fgOPTIONS::FG_MOUSE );
-                } else {
-                    if ( left_button() ) {
-                        offset = (_mX - x) * brake_sensitivity;
-                        controls.move_brake(FGControls::ALL_WHEELS, offset);
-                        offset = (_mY - y) * throttle_sensitivity;
-                        controls.move_throttle(FGControls::ALL_ENGINES, offset);
-                    } else if ( right_button() ) {
-                        if( !fgAPHeadingEnabled() ) {
-                            offset = (x - _mX) * rudder_sensitivity;
-                            controls.move_rudder(offset);
-                        }
-                        if( !fgAPAltitudeEnabled() ) {
-                            offset = (_mY - y) * trim_sensitivity;
-                            controls.move_elevator_trim(offset);
-                        }
-                    } else {
-                        if( !fgAPHeadingEnabled() ) {
-                            offset = (x - _mX) * aileron_sensitivity;
-                            controls.move_aileron(offset);
-                        }
-                        if( !fgAPAltitudeEnabled() ) {
-                            offset = (_mY - y) * elevator_sensitivity;
-                            controls.move_elevator(offset);
-                        }
-                    }
-                }
-                // Keep the mouse in the window.
-                if (x < 5 || x > ww-5 || y < 5 || y > wh-5) {
-                    x = ww / 2;
-                    y = wh / 2;
-                    need_warp = 1;
-                }
-                break;
-                
-            case MOUSE_VIEW:
-                if( y <= 0 ) {
-#define CONTRAINED_MOUSE_VIEW_Y
-#ifdef CONTRAINED_MOUSE_VIEW_Y
-                    y = 1;
-#else
-                    y = wh-2;
-#endif // CONTRAINED_MOUSE_VIEW_Y
-                    need_warp = 1;
-                } else if( y >= wh-1) {
-#ifdef CONTRAINED_MOUSE_VIEW_Y
-                    y = wh-2;
-#else
-                    y = 1;
-#endif // CONTRAINED_MOUSE_VIEW_Y
-                    need_warp = 1;
-                }
-                // wrap MOUSE_VIEW mode cursor x position
-                if ( x <= 0 ) {
-                    need_warp = 1;
-                    x = ww-2;
-                } else if ( x >= ww-1 ) {
-                    need_warp = 1;
-                    x = 1;
-                }
-                // try to get FG_PI movement in each half of screen
-                // do spherical pan
-                W = ww;
-                H = wh;
-                if( middle_button() ) {
-                    trackball(lastquat,
-                              (2.0f * _mX - W) / W,
-                              0, //(H - 2.0f * y) / H,         // 3
-                              (2.0f * x - W) / W,
-                              0 //(H - 2.0f * _mY) / H       // 1
-                             );
-                    x = _mX;
-                    y = _mY;
-                    need_warp = 1;
-                } else {
-                    trackball(lastquat,
-                              0, //(2.0f * _mX - W) / W,  // 0
-                              (H - 2.0f * y) / H,         // 3
-                              0, //(2.0f * x - W) / W,    // 2
-                              (H - 2.0f * _mY) / H        // 1 
-                             );
-                }
-                add_quats(lastquat, curquat, curquat);
-                build_rotmatrix(quat_mat, curquat);
-                
-                // do horizontal pan
-                // this could be done in above quat
-                // but requires redoing view pipeline
-                offset = current_view.get_goal_view_offset();
-                offset += ((_mX - x) * FG_2PI / W );
-                while (offset < 0.0) {
-                    offset += FG_2PI;
-                }
-                while (offset > FG_2PI) {
-                    offset -= FG_2PI;
-                }
-                current_view.set_goal_view_offset(offset);
-#ifdef NO_SMOOTH_MOUSE_VIEW
-                current_view.set_view_offset(offset);
-#endif
-                break;
-            
-            default:
-                break;
-        }
-    }
-    if( need_warp)
-        glutWarpPointer(x, y);
-    
-    // Record the new mouse position.
-    _mX = x;
-    _mY = y;
-}
-
-
-void guiMouseFunc(int button, int updown, int x, int y)
-{
-    int glutModifiers;
-
-    // private MOUSE_VIEW state variables
-    // to allow alternate left clicks in MOUSE_VIEW mode
-    // to toggle between current offsets and straight ahead
-    // uses _mVtoggle
-    static int _mVx, _mVy, _Vx, _Vy;
-    static float _quat[4];
-    static double _view_offset;
-    
-    // general purpose variables
-    double offset;
-            
-    glutModifiers = glutGetModifiers();
-    glut_active_shift = glutModifiers & GLUT_ACTIVE_SHIFT;
-    glut_active_ctrl  = glutModifiers & GLUT_ACTIVE_CTRL; 
-    glut_active_alt   = glutModifiers & GLUT_ACTIVE_ALT;
-    
-    // Was the left button pressed?
-    if (updown == GLUT_DOWN ) {
-        if( button == GLUT_LEFT_BUTTON)
-        {
-            switch (mouse_mode) {
-                case MOUSE_POINTER:
-                    break;
-                case MOUSE_YOKE:
-                    break;
-                case MOUSE_VIEW:
-                    if(_mVtoggle) {
-                        // resume previous view offsets
-                        _mX = _mVx;
-                        _mY = _mVy;
-                        x = _Vx;
-                        y = _Vy;
-                        curquat[0] = _quat[0];
-                        curquat[1] = _quat[1];
-                        curquat[2] = _quat[2];
-                        curquat[3] = _quat[3];
-                        current_view.set_goal_view_offset(_view_offset);
-#ifdef NO_SMOOTH_MOUSE_VIEW
-                        current_view.set_view_offset(_view_offset);
-#endif
-                    } else {
-                        // center view
-                        _mVx = _mX;
-                        _mVy = _mY;
-                        _Vx = x;
-                        _Vy = y;
-                        _quat[0] = curquat[0];
-                        _quat[1] = curquat[1];
-                        _quat[2] = curquat[2];
-                        _quat[3] = curquat[3];
-                        x = current_view.get_winWidth()/2;
-                        y = current_view.get_winHeight()/2;
-                        Quat0();
-                        _view_offset = current_view.get_goal_view_offset();
-                        current_view.set_goal_view_offset(0.0);
-#ifdef NO_SMOOTH_MOUSE_VIEW
-                        current_view.set_view_offset(0.0);
-#endif
-                    }
-                    glutWarpPointer( x , y);
-                    build_rotmatrix(quat_mat, curquat);
-                    _mVtoggle = ~_mVtoggle;
-                    break;
-            }
-        }else if ( button == GLUT_RIGHT_BUTTON) {
-            switch (mouse_mode) {
-                case MOUSE_POINTER:
-                    mouse_mode = MOUSE_YOKE;
-                    mouse_joystick_control = 0;
-                    _savedX = x;
-                    _savedY = y;
-                    // start with zero point in center of screen
-                    _mX = current_view.get_winWidth()/2;
-                    _mY = current_view.get_winHeight()/2;
-                    
-                    // try to have the MOUSE_YOKE position
-                    // reflect the current stick position
-                    offset = controls.get_aileron();
-                    x = _mX - (int)(offset * aileron_sensitivity);
-                    offset = controls.get_elevator();
-                    y = _mY - (int)(offset * elevator_sensitivity);
-                    
-                    glutSetCursor(GLUT_CURSOR_CROSSHAIR);
-                    FG_LOG( FG_INPUT, FG_INFO, "Mouse in yoke mode" );
-                    break;
-                    
-                case MOUSE_YOKE:
-                    mouse_mode = MOUSE_VIEW;
-                    current_options.set_control_mode( fgOPTIONS::FG_JOYSTICK );
-                    x = current_view.get_winWidth()/2;
-                    y = current_view.get_winHeight()/2;
-                    _mVtoggle = 0;
-                    Quat0();
-                    build_rotmatrix(quat_mat, curquat);
-                    glutSetCursor(GLUT_CURSOR_LEFT_RIGHT);
-                    FG_LOG( FG_INPUT, FG_INFO, "Mouse in view mode" );
-                    break;
-                    
-                case MOUSE_VIEW:
-                    mouse_mode = MOUSE_POINTER;
-                    x = _savedX;
-                    y = _savedY;
-#ifdef RESET_VIEW_ON_LEAVING_MOUSE_VIEW
-                    Quat0();
-                    build_rotmatrix(quat_mat, curquat);
-                    current_view.set_goal_view_offset(0.0);
-#ifdef NO_SMOOTH_MOUSE_VIEW
-                    current_view.set_view_offset(0.0);
-#endif
-#endif      // RESET_VIEW_ON_LEAVING_MOUSE_VIEW
-                    glutSetCursor(GLUT_CURSOR_INHERIT);
-                    
-                    if(!menu_on)
-                        TurnCursorOff();
-                    
-                    FG_LOG( FG_INPUT, FG_INFO, "Mouse in pointer mode" );
-                    break;
-            }     
-            glutWarpPointer( x, y );
-        } // END RIGHT BUTTON
-    } // END UPDOWN == GLUT_DOWN
-    
-    // Note which button is pressed.
-    if ( updown == GLUT_DOWN ) {
-        last_buttons |=  ( 1 << button ) ;
-    } else {
-        last_buttons &= ~( 1 << button ) ;
-    }
-    
-    // If we're in pointer mode, let PUI
-    // know what's going on.
-    if (mouse_mode == MOUSE_POINTER) {
-        puMouse (button, updown, x,y);
-    }
-    
-    // Register the new position (if it
-    // hasn't been registered already).
-    _mX = x;
-    _mY = y;
-    
-    glutPostRedisplay ();
-}
 
 /* ================ General Purpose Functions ================ */
 
@@ -667,32 +153,34 @@ void mkDialog (const char *txt)
     FG_PUSH_PUI_DIALOG( dialogBox );
 }
 
-// Repair any damage done to the Panel by other Gui Items
-void guiFixPanel( void )
+// Message Box to report an error.
+void guiErrorMessage (const char *txt)
 {
-    int toggle_pause;
-
-    if ( current_options.get_panel_status() ) {
-        FGView *v = &current_view;
-        FGTime *t = FGTime::cur_time_params;
-
-        if( (toggle_pause = !t->getPause()) )
-            t->togglePauseMode();
-
-        // this seems to be the only way to do this :-(
-        // problem is the viewport has been mucked with
-        xglViewport(0, 0 , (GLint)(v->winWidth), (GLint)(v->winHeight) );
-        FGPanel::OurPanel->ReInit(0, 0, 1024, 768);
+    SG_LOG(SG_GENERAL, SG_ALERT, txt);
+    if (dialogBox != 0)
+      mkDialog(txt);
+}
 
-        if(toggle_pause)
-            t->togglePauseMode();
+// Message Box to report a throwable (usually an exception).
+void guiErrorMessage (const char *txt, const sg_throwable &throwable)
+{
+    string msg = txt;
+    msg += '\n';
+    msg += throwable.getFormattedMessage();
+    if (throwable.getOrigin() != "") {
+      msg += "\n (reported by ";
+      msg += throwable.getOrigin();
+      msg += ')';
     }
+    SG_LOG(SG_GENERAL, SG_ALERT, msg);
+    if (dialogBox != 0)
+      mkDialog(msg.c_str());
 }
 
 // Toggle the Menu and Mouse display state
 void guiToggleMenu(void)
 {
-    if( menu_on ) {
+    if( gui_menu_on ) {
         // printf("Hiding Menu\n");
         mainMenuBar->hide  ();
 #if defined(WIN32_CURSOR_TWEAKS)
@@ -706,26 +194,158 @@ void guiToggleMenu(void)
         TurnCursorOn();
 #endif // #ifdef WIN32
     }
-    menu_on = ~menu_on;
+    gui_menu_on = ~gui_menu_on;
 }
     
 /* -----------------------------------------------------------------------
 the Gui callback functions 
 ____________________________________________________________________*/
 
-void reInit(puObject *cb)
+
+// Hier Neu :-) This is my newly added code
+// Added by David Findlay <nedz@bigpond.com>
+// on Sunday 3rd of December
+
+// Start new Save Dialog Box
+static puDialogBox     *SaveDialog = 0;
+static puFrame         *SaveDialogFrame = 0;
+static puText          *SaveDialogMessage = 0;
+static puInput         *SaveDialogInput = 0;
+
+static puOneShot       *SaveDialogOkButton = 0;
+static puOneShot       *SaveDialogCancelButton = 0;
+// static puOneShot       *SaveDialogResetButton = 0;
+
+// Default save filename
+static char saveFile[256] = "fgfs.sav";
+
+// Cancel Button
+void SaveDialogCancel(puObject *) {
+    FG_POP_PUI_DIALOG( SaveDialog );
+}
+
+// If press OK do this
+void SaveDialogOk(puObject*) {
+
+    FG_POP_PUI_DIALOG( SaveDialog );
+
+    char *s;
+    SaveDialogInput->getValue(&s);
+
+    ofstream output(s);
+    cout << saveFile << endl;
+    if (output.good() && fgSaveFlight(output)) {
+	output.close();
+	mkDialog("Saved flight");
+	SG_LOG(SG_INPUT, SG_INFO, "Saved flight");
+    } else {
+	mkDialog("Cannot save flight");
+	SG_LOG(SG_INPUT, SG_ALERT, "Cannot save flight");
+    }
+}
+
+// Create Dialog
+static void saveFlight(puObject *cv) {
+    SaveDialog = new puDialogBox (150, 50);
+    {
+        SaveDialogFrame   = new puFrame           (0,0,350, 150);
+        SaveDialogMessage = new puText            (
+			(150 - puGetStringWidth( puGetDefaultLabelFont(), "File Name:" ) / 2), 110);
+        SaveDialogMessage ->    setLabel          ("File Name:");
+
+        SaveDialogInput   = new puInput           (50, 70, 300, 100);
+        SaveDialogInput   ->    setValue          (saveFile);
+        SaveDialogInput   ->    acceptInput();
+
+        SaveDialogOkButton     =  new puOneShot   (50, 10, 110, 50);
+        SaveDialogOkButton     ->     setLegend   (gui_msg_OK);
+        SaveDialogOkButton     ->     setCallback ( SaveDialogOk );
+        SaveDialogOkButton     ->     makeReturnDefault(TRUE);
+
+        SaveDialogCancelButton =  new puOneShot   (140, 10, 210, 50);
+        SaveDialogCancelButton ->     setLegend   (gui_msg_CANCEL);
+        SaveDialogCancelButton ->     setCallback ( SaveDialogCancel );
+    }
+    FG_FINALIZE_PUI_DIALOG( SaveDialog );
+   
+    SaveDialog -> reveal();
+}
+
+// Load Dialog Start
+static puDialogBox     *LoadDialog = 0;
+static puFrame         *LoadDialogFrame = 0;
+static puText          *LoadDialogMessage = 0;
+static puInput         *LoadDialogInput = 0;
+
+static puOneShot       *LoadDialogOkButton = 0;
+static puOneShot       *LoadDialogCancelButton = 0;
+// static puOneShot       *LoadDialogResetButton = 0;
+
+// Default load filename
+static char loadFile[256] = "fgfs.sav";
+
+// Do this if the person click okay
+void LoadDialogOk(puObject *) {
+
+    FG_POP_PUI_DIALOG( LoadDialog );
+
+    char *l;
+    LoadDialogInput->getValue(&l);
+
+    ifstream input(l);
+    if (input.good() && fgLoadFlight(input)) {
+	input.close();
+	mkDialog("Loaded flight");
+	SG_LOG(SG_INPUT, SG_INFO, "Restored flight");
+    } else {
+	mkDialog("Failed to load flight");
+	SG_LOG(SG_INPUT, SG_ALERT, "Cannot load flight");
+    }
+}
+
+// Do this is the person presses cancel
+void LoadDialogCancel(puObject *) {
+    FG_POP_PUI_DIALOG( LoadDialog );
+}
+
+// Create Load Dialog
+static void loadFlight(puObject *cb)
 {
-    BusyCursor(0);
-    Quat0();
-    build_rotmatrix(quat_mat, curquat);
-    fgReInitSubsystems();
-    BusyCursor(1);
+    LoadDialog = new puDialogBox (150, 50);
+    {
+        LoadDialogFrame   = new puFrame           (0,0,350, 150);
+        LoadDialogMessage = new puText            (
+			(150 - puGetStringWidth( puGetDefaultLabelFont(), "File Name:" ) / 2), 110);
+        LoadDialogMessage ->    setLabel          ("File Name:");
+
+        LoadDialogInput   = new puInput           (50, 70, 300, 100);
+        LoadDialogInput   ->    setValue          (loadFile);
+        LoadDialogInput   ->    acceptInput();
+
+        LoadDialogOkButton     =  new puOneShot   (50, 10, 110, 50);
+        LoadDialogOkButton     ->     setLegend   (gui_msg_OK);
+        LoadDialogOkButton     ->     setCallback ( LoadDialogOk );
+        LoadDialogOkButton     ->     makeReturnDefault(TRUE);
+
+        LoadDialogCancelButton =  new puOneShot   (140, 10, 210, 50);
+        LoadDialogCancelButton ->     setLegend   (gui_msg_CANCEL);
+        LoadDialogCancelButton ->     setCallback ( LoadDialogCancel );
+    }
+    FG_FINALIZE_PUI_DIALOG( LoadDialog );
+   
+    LoadDialog -> reveal();
 }
-	
+
 // This is the accessor function
 void guiTogglePanel(puObject *cb)
 {
-    current_options.toggle_panel();
+  if (fgGetBool("/sim/panel/visibility"))
+    fgSetBool("/sim/panel/visibility", false);
+  else
+    fgSetBool("/sim/panel/visibility", true);
+
+  fgReshape(fgGetInt("/sim/startup/xsize"),
+	    fgGetInt("/sim/startup/ysize"));
 }
     
 //void MenuHideMenuCb(puObject *cb)
@@ -736,18 +356,20 @@ void hideMenuCb (puObject *cb)
 
 void goodBye(puObject *)
 {
-    // FG_LOG( FG_INPUT, FG_ALERT,
+    // SG_LOG( SG_INPUT, SG_ALERT,
     //      "Program exiting normally at user request." );
     cout << "Program exiting normally at user request." << endl;
 
 #ifdef FG_NETWORK_OLK    
-    if ( net_is_registered == 0 ) fgd_send_com( "8", FGFS_host);
+    if ( fgGetBool("/sim/networking/network-olk") ) {
+	if ( net_is_registered == 0 ) fgd_send_com( "8", FGFS_host);
+    }
 #endif
 
-    //  if(gps_bug)
-    //      fclose(gps_bug);
+    // close all external I/O connections
+    fgIOShutdownAll();
 
-    exit(-1);
+    exit(0);
 }
 
 
@@ -759,8 +381,8 @@ void goAwayCb (puObject *me)
 void mkDialogInit (void)
 {
     //  printf("mkDialogInit\n");
-    int x = (current_options.get_xsize()/2 - 400/2);
-    int y = (current_options.get_ysize()/2 - 100/2);
+    int x = (fgGetInt("/sim/startup/xsize")/2 - 400/2);
+    int y = (fgGetInt("/sim/startup/ysize")/2 - 100/2);
     dialogBox = new puDialogBox (x, y); // 150, 50
     {
         dialogFrame = new puFrame (0,0,400,100);
@@ -792,8 +414,8 @@ void ConfirmExitDialogInit(void)
     //  printf("ConfirmExitDialogInit\n");
     int len = 200 - puGetStringWidth( puGetDefaultLabelFont(), msg )/2;
 
-    int x = (current_options.get_xsize()/2 - 400/2);
-    int y = (current_options.get_ysize()/2 - 100/2);
+    int x = (fgGetInt("/sim/startup/xsize")/2 - 400/2);
+    int y = (fgGetInt("/sim/startup/ysize")/2 - 100/2);
 	
     YNdialogBox = new puDialogBox (x, y); // 150, 50
     //  YNdialogBox = new puDialogBox (150, 50);
@@ -807,11 +429,11 @@ void ConfirmExitDialogInit(void)
         
         YNdialogBoxOkButton =  new puOneShot      (100, 10, 160, 50);
         YNdialogBoxOkButton -> setLegend          (gui_msg_OK);
+        YNdialogBoxOkButton -> makeReturnDefault  (TRUE );
         YNdialogBoxOkButton -> setCallback        (goodBye);
         
         YNdialogBoxNoButton =  new puOneShot      (240, 10, 300, 50);
         YNdialogBoxNoButton -> setLegend          (gui_msg_NO);
-        //      YNdialogBoxNoButton -> makeReturnDefault  (TRUE );
         YNdialogBoxNoButton -> setCallback        (goAwayYesNoCb);
     }
     FG_FINALIZE_PUI_DIALOG( YNdialogBox );
@@ -835,25 +457,221 @@ void helpCb (puObject *)
 #  endif
 #endif
 	
-#if !defined(WIN32)
-    string url = "http://www.flightgear.org/Docs/InstallGuide/getstart.html";
+    SGPath path( globals->get_fg_root() );
+    path.append( "Docs/index.html" );
 	
+    string help_app = fgGetString("/sim/startup/browser-app");
+
     if ( system("xwininfo -name Netscape > /dev/null 2>&1") == 0 ) {
-        command = "netscape -remote \"openURL(" + url + ")\" &";
+        command = help_app + " -remote \"openURL(" + path.str() + ")\"";
     } else {
-        command = "netscape " + url + " &";
+        command = help_app + " " + path.str();
     }
-#else
-    command = "webrun.bat";
+#if !defined(WIN32)
+    command += " &";
 #endif
 	
     system( command.c_str() );
-    //string text = "Help started in netscape window.";
-
-    //mkDialog (text.c_str());
     mkDialog ("Help started in netscape window.");
 }
 
+#define TR_HIRES_SNAP
+#if defined( TR_HIRES_SNAP)
+#include <simgear/screen/tr.h>
+extern void trRenderFrame( void );
+extern void fgUpdateHUD( GLfloat x_start, GLfloat y_start,
+                         GLfloat x_end, GLfloat y_end );
+
+void fgHiResDump()
+{
+    FILE *f;
+    string message;
+    bool show_pu_cursor = false;
+    bool show_menu = false;
+    char *filename = new char [24];
+    static int count = 1;
+
+    int freeze = globals->get_freeze();
+    if(!freeze)
+        globals->set_freeze( true );
+
+    if(gui_menu_on) {
+        show_menu = true;
+        guiToggleMenu();
+    }
+	
+    if ( !puCursorIsHidden() ) {
+        show_pu_cursor = true;
+        puHideCursor();
+    }
+
+    fgInitVisuals();
+    fgReshape( fgGetInt("/sim/startup/xsize"),
+               fgGetInt("/sim/startup/ysize") );
+
+    // we need two render frames here to clear the menu and cursor
+    // ... not sure why but doing an extra fgRenderFrame() shouldn't
+    // hurt anything
+    fgRenderFrame();
+    fgRenderFrame();
+
+    // Make sure we have SSG projection primed for current view
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    ssgSetCamera( (sgVec4 *)globals->get_current_view()->get_VIEW() );
+    float fov = globals->get_current_view()->get_fov();
+    ssgSetFOV(fov, fov * globals->get_current_view()->get_win_ratio());
+    // ssgSetNearFar( 10.0f, 120000.0f );
+    ssgSetNearFar( 0.5f, 1200000.0f );
+
+	
+    // This ImageSize stuff is a temporary hack
+    // should probably use 128x128 tile size and
+    // support any image size
+
+    // This should be a requester to get multiplier from user
+    int multiplier = 3;
+    int width = fgGetInt("/sim/startup/xsize");
+    int height = fgGetInt("/sim/startup/ysize");
+	
+    /* allocate buffer large enough to store one tile */
+    GLubyte *tile = (GLubyte *)malloc(width * height * 3 * sizeof(GLubyte));
+    if (!tile) {
+        printf("Malloc of tile buffer failed!\n");
+        return;
+    }
+
+    int imageWidth  = multiplier*width;
+    int imageHeight = multiplier*height;
+
+    /* allocate buffer to hold a row of tiles */
+    GLubyte *buffer
+        = (GLubyte *)malloc(imageWidth * height * 3 * sizeof(GLubyte));
+    if (!buffer) {
+        free(tile);
+        printf("Malloc of tile row buffer failed!\n");
+        return;
+    }
+    TRcontext *tr = trNew();
+    trTileSize(tr, width, height, 0);
+    trTileBuffer(tr, GL_RGB, GL_UNSIGNED_BYTE, tile);
+    trImageSize(tr, imageWidth, imageHeight);
+    trRowOrder(tr, TR_TOP_TO_BOTTOM);
+    sgFrustum *frustum = ssgGetFrustum();
+    trFrustum(tr,
+              frustum->getLeft(), frustum->getRight(),
+              frustum->getBot(),  frustum->getTop(), 
+              frustum->getNear(), frustum->getFar());
+	
+    /* Prepare ppm output file */
+    while (count < 1000) {
+        snprintf(filename, 24, "fgfs-screen-%03d.ppm", count++);
+        if ( (f = fopen(filename, "r")) == NULL )
+            break;
+        fclose(f);
+    }
+    f = fopen(filename, "wb");
+    if (!f) {
+        printf("Couldn't open image file: %s\n", filename);
+        free(buffer);
+        free(tile);
+        return;
+    }
+    fprintf(f,"P6\n");
+    fprintf(f,"# ppm-file created by %s\n", "trdemo2");
+    fprintf(f,"%i %i\n", imageWidth, imageHeight);
+    fprintf(f,"255\n");
+
+    /* just to be safe... */
+    glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+    /* Because the HUD and Panel change the ViewPort we will
+     * need to handle some lowlevel stuff ourselves */
+    int ncols = trGet(tr, TR_COLUMNS);
+    int nrows = trGet(tr, TR_ROWS);
+
+    bool do_hud = fgGetBool("/sim/hud/visibility");
+    GLfloat hud_col_step = 640.0 / ncols;
+    GLfloat hud_row_step = 480.0 / nrows;
+	
+    bool do_panel = fgPanelVisible();
+    GLfloat panel_col_step = current_panel->getWidth() / ncols;
+    GLfloat panel_row_step = current_panel->getHeight() / nrows;
+	
+    /* Draw tiles */
+    int more = 1;
+    while (more) {
+        trBeginTile(tr);
+        int curColumn = trGet(tr, TR_CURRENT_COLUMN);
+        int curRow =  trGet(tr, TR_CURRENT_ROW);
+        trRenderFrame();
+        if ( do_hud )
+            fgUpdateHUD( curColumn*hud_col_step,      curRow*hud_row_step,
+                         (curColumn+1)*hud_col_step, (curRow+1)*hud_row_step );
+        if (do_panel)
+            current_panel->update( curColumn*panel_col_step, panel_col_step,
+                                   curRow*panel_row_step,    panel_row_step );
+        more = trEndTile(tr);
+
+        /* save tile into tile row buffer*/
+        int curTileWidth = trGet(tr, TR_CURRENT_TILE_WIDTH);
+        int bytesPerImageRow = imageWidth * 3*sizeof(GLubyte);
+        int bytesPerTileRow = (width) * 3*sizeof(GLubyte);
+        int xOffset = curColumn * bytesPerTileRow;
+        int bytesPerCurrentTileRow = (curTileWidth) * 3*sizeof(GLubyte);
+        int i;
+        for (i=0;i<height;i++) {
+            memcpy(buffer + i*bytesPerImageRow + xOffset, /* Dest */
+                   tile + i*bytesPerTileRow,              /* Src */
+                   bytesPerCurrentTileRow);               /* Byte count*/
+        }
+
+        if (curColumn == trGet(tr, TR_COLUMNS)-1) {
+            /* write this buffered row of tiles to the file */
+            int curTileHeight = trGet(tr, TR_CURRENT_TILE_HEIGHT);
+            int bytesPerImageRow = imageWidth * 3*sizeof(GLubyte);
+            int i;
+            for (i=0;i<curTileHeight;i++) {
+                /* Remember, OpenGL images are bottom to top.  Have to reverse. */
+                GLubyte *rowPtr = buffer + (curTileHeight-1-i) * bytesPerImageRow;
+                fwrite(rowPtr, 1, imageWidth*3, f);
+            }
+        }
+
+    }
+
+    fgReshape( width, height );
+
+    trDelete(tr);
+
+    fclose(f);
+
+    message = "Snap shot saved to ";
+    message += filename;
+    mkDialog (message.c_str());
+
+    free(tile);
+    free(buffer);
+
+    //	message = "Snap shot saved to ";
+    //	message += filename;
+    //	mkDialog (message.c_str());
+
+    delete [] filename;
+
+    if( show_menu )
+        guiToggleMenu();
+
+    if ( show_pu_cursor ) {
+        puShowCursor();
+    }
+
+    if(!freeze)
+        globals->set_freeze( false );
+}
+#endif // #if defined( TR_HIRES_SNAP)
+
+
 #if defined( WIN32 ) && !defined( __CYGWIN__)
 
 static void rotateView( double roll, double pitch, double yaw )
@@ -861,39 +679,34 @@ static void rotateView( double roll, double pitch, double yaw )
 	// rotate view
 }
 
-static GLBitmap *b1 = NULL;
+static GlBitmap *b1 = NULL;
 extern FGInterface cur_view_fdm;
 GLubyte *hiResScreenCapture( int multiplier )
 {
-	float oldfov = current_options.get_fov();
-	float fov = oldfov / multiplier;
-	FGView *v = &current_view;
-	current_options.set_fov(fov);
-	v->force_update_fov_math();
+    float oldfov = fgGetDouble("/sim/field-of-view");
+    float fov = oldfov / multiplier;
+    FGViewer *v = globals->get_current_view();
+    fgSetDouble("/sim/field-of-view", fov);
     fgInitVisuals();
-    int cur_width = current_view.get_winWidth( );
-    int cur_height = current_view.get_winHeight( );
-	if (b1) delete( b1 );
-	// New empty (mostly) bitmap
-	b1 = new GlBitmap( GL_RGB, 1, 1, (unsigned char *)"123" );
-	int x,y;
-	for ( y = 0; y < multiplier; y++ )
-	{
-		for ( x = 0; x < multiplier; x++ )
-		{
-			fgReshape( cur_width, cur_height );
-			// pan to tile
-			rotateView( 0, (y*fov)-((multiplier-1)*fov/2), (x*fov)-((multiplier-1)*fov/2) );
-			fgRenderFrame();
-			// restore view
-			GlBitmap b2;
-			b1->copyBitmap( &b2, cur_width*x, cur_height*y );
-		}
+    int cur_width = fgGetInt("/sim/startup/xsize");
+    int cur_height = fgGetInt("/sim/startup/ysize");
+    if (b1) delete( b1 );
+    // New empty (mostly) bitmap
+    b1 = new GlBitmap( GL_RGB, 1, 1, (unsigned char *)"123" );
+    int x,y;
+    for ( y = 0; y < multiplier; y++ ) {
+	for ( x = 0; x < multiplier; x++ ) {
+	    fgReshape( cur_width, cur_height );
+	    // pan to tile
+	    rotateView( 0, (y*fov)-((multiplier-1)*fov/2), (x*fov)-((multiplier-1)*fov/2) );
+	    fgRenderFrame();
+	    // restore view
+	    GlBitmap b2;
+	    b1->copyBitmap( &b2, cur_width*x, cur_height*y );
 	}
-	current_view.UpdateViewParams(cur_view_fdm);
-	current_options.set_fov(oldfov);
-	v->force_update_fov_math();
-	return b1->getBitmap();
+    }
+    fgSetDouble("/sim/field-of-view", oldfov);
+    return b1->getBitmap();
 }
 #endif
 
@@ -911,12 +724,12 @@ void printScreen ( puObject *obj ) {
     mainMenuBar->hide();
 
     CGlPrinter p( CGlPrinter::PRINT_BITMAP );
-    int cur_width = current_view.get_winWidth( );
-    int cur_height = current_view.get_winHeight( );
+    int cur_width = fgGetInt("/sim/startup/xsize");
+    int cur_height = fgGetInt("/sim/startup/ysize");
     p.Begin( "FlightGear", cur_width*3, cur_height*3 );
 	p.End( hiResScreenCapture(3) );
 
-    if( menu_on ) {
+    if( gui_menu_on ) {
 	mainMenuBar->reveal();
     }
     BusyCursor(1);
@@ -933,9 +746,21 @@ void dumpSnapShot ( puObject *obj ) {
 }
 
 
+void dumpHiResSnapShot ( puObject *obj ) {
+    fgHiResDump();
+}
+
+
 // do a screen snap shot
 void fgDumpSnapShot () {
     bool show_pu_cursor = false;
+    char *filename = new char [24];
+    string message;
+    static int count = 1;
+
+    int freeze = globals->get_freeze();
+    if(!freeze)
+        globals->set_freeze( true );
 
     mainMenuBar->hide();
     TurnCursorOff();
@@ -945,409 +770,73 @@ void fgDumpSnapShot () {
     }
 
     fgInitVisuals();
-    fgReshape( current_options.get_xsize(), current_options.get_ysize() );
+    fgReshape( fgGetInt("/sim/startup/xsize"),
+	       fgGetInt("/sim/startup/ysize") );
 
     // we need two render frames here to clear the menu and cursor
-    // ... not sure why but doing an extra fgFenderFrame() shoulnd't
+    // ... not sure why but doing an extra fgRenderFrame() shouldn't
     // hurt anything
     fgRenderFrame();
     fgRenderFrame();
 
-    my_glDumpWindow( "fgfs-screen.ppm", 
-		     current_options.get_xsize(), 
-		     current_options.get_ysize() );
-    
-    mkDialog ("Snap shot saved to fgfs-screen.ppm");
-
-    if ( show_pu_cursor ) {
-	puShowCursor();
+    while (count < 1000) {
+        FILE *fp;
+        snprintf(filename, 24, "fgfs-screen-%03d.ppm", count++);
+        if ( (fp = fopen(filename, "r")) == NULL )
+            break;
+        fclose(fp);
     }
 
-    TurnCursorOn();
-    if( menu_on ) {
-	mainMenuBar->reveal();
+    if ( sg_glDumpWindow( filename,
+			  fgGetInt("/sim/startup/xsize"), 
+			  fgGetInt("/sim/startup/ysize")) ) {
+	message = "Snap shot saved to ";
+	message += filename;
+    } else {
+        message = "Failed to save to ";
+	message += filename;
     }
 
-}
-
-
-/// The beginnings of teleportation :-)
-//  Needs cleaning up but works
-//  These statics should disapear when this is a class
-static puDialogBox     *AptDialog = 0;
-static puFrame         *AptDialogFrame = 0;
-static puText          *AptDialogMessage = 0;
-static puInput         *AptDialogInput = 0;
+    mkDialog (message.c_str());
 
-static char NewAirportId[16];
-static char NewAirportLabel[] = "Enter New Airport ID"; 
+    delete [] filename;
 
-static puOneShot       *AptDialogOkButton = 0;
-static puOneShot       *AptDialogCancelButton = 0;
-static puOneShot       *AptDialogResetButton = 0;
-
-void AptDialog_Cancel(puObject *)
-{
-    FG_POP_PUI_DIALOG( AptDialog );
-}
-
-void AptDialog_OK (puObject *)
-{
-	fgAIRPORTS airports;
-	fgAIRPORT a;
-    
-    FGTime *t = FGTime::cur_time_params;
-    int PauseMode = t->getPause();
-    if(!PauseMode)
-        t->togglePauseMode();
-
-    char *s;
-    AptDialogInput->getValue(&s);
-    string AptId(s);
-
-	cout << "AptDialog_OK " << AptId << " " << AptId.length() << endl;
-    
-    AptDialog_Cancel( NULL );
-    
-    if ( AptId.length() ) {
-        // set initial position from airport id
-        FG_LOG( FG_GENERAL, FG_INFO,
-                "Attempting to set starting position from airport code "
-                << AptId );
-
-        airports.load("apt_simple");
-        if ( airports.search( AptId, &a ) )
-        {
-            current_options.set_airport_id( AptId.c_str() );
-            BusyCursor(0);
-            fgReInitSubsystems();
-            BusyCursor(1);
-        } else {
-            AptId  += " not in database.";
-            mkDialog(AptId.c_str());
-        }
+    if ( show_pu_cursor ) {
+	puShowCursor();
     }
-    if( PauseMode != t->getPause() )
-        t->togglePauseMode();
-}
 
-void AptDialog_Reset(puObject *)
-{
-    //  strncpy( NewAirportId, current_options.get_airport_id().c_str(), 16 );
-    sprintf( NewAirportId, "%s", current_options.get_airport_id().c_str() );
-    AptDialogInput->setValue ( NewAirportId );
-    AptDialogInput->setCursor( 0 ) ;
-}
-
-void NewAirport(puObject *cb)
-{
-    //  strncpy( NewAirportId, current_options.get_airport_id().c_str(), 16 );
-    sprintf( NewAirportId, "%s", current_options.get_airport_id().c_str() );
-//	cout << "NewAirport " << NewAirportId << endl;
-    AptDialogInput->setValue( NewAirportId );
-
-    FG_PUSH_PUI_DIALOG( AptDialog );
-}
-
-static void NewAirportInit(void)
-{
-    sprintf( NewAirportId, "%s", current_options.get_airport_id().c_str() );
-    int len = 150 - puGetStringWidth( puGetDefaultLabelFont(),
-                                      NewAirportLabel ) / 2;
-
-    AptDialog = new puDialogBox (150, 50);
-    {
-        AptDialogFrame   = new puFrame           (0,0,350, 150);
-        AptDialogMessage = new puText            (len, 110);
-        AptDialogMessage ->    setLabel          (NewAirportLabel);
-
-        AptDialogInput   = new puInput           (50, 70, 300, 100);
-        AptDialogInput   ->    setValue          (NewAirportId);
-        AptDialogInput   ->    acceptInput();
-
-        AptDialogOkButton     =  new puOneShot   (50, 10, 110, 50);
-        AptDialogOkButton     ->     setLegend   (gui_msg_OK);
-        AptDialogOkButton     ->     setCallback (AptDialog_OK);
-        AptDialogOkButton     ->     makeReturnDefault(TRUE);
-
-        AptDialogCancelButton =  new puOneShot   (140, 10, 210, 50);
-        AptDialogCancelButton ->     setLegend   (gui_msg_CANCEL);
-        AptDialogCancelButton ->     setCallback (AptDialog_Cancel);
-
-        AptDialogResetButton  =  new puOneShot   (240, 10, 300, 50);
-        AptDialogResetButton  ->     setLegend   (gui_msg_RESET);
-        AptDialogResetButton  ->     setCallback (AptDialog_Reset);
+    TurnCursorOn();
+    if( gui_menu_on ) {
+	mainMenuBar->reveal();
     }
-	cout << "NewAirportInit " << NewAirportId << endl;
-    FG_FINALIZE_PUI_DIALOG( AptDialog );
-}
-
-#ifdef FG_NETWORK_OLK
-
-/// The beginnings of networking :-)
-//  Needs cleaning up but works
-//  These statics should disapear when this is a class
-static puDialogBox     *NetIdDialog = 0;
-static puFrame         *NetIdDialogFrame = 0;
-static puText          *NetIdDialogMessage = 0;
-static puInput         *NetIdDialogInput = 0;
-
-static char NewNetId[16];
-static char NewNetIdLabel[] = "Enter New Callsign"; 
-extern char *fgd_callsign;
-
-static puOneShot       *NetIdDialogOkButton = 0;
-static puOneShot       *NetIdDialogCancelButton = 0;
-
-void NetIdDialog_Cancel(puObject *)
-{
-    FG_POP_PUI_DIALOG( NetIdDialog );
-}
-
-void NetIdDialog_OK (puObject *)
-{
-    string NetId;
-    
-    FGTime *t = FGTime::cur_time_params;
-    int PauseMode = t->getPause();
-    if(!PauseMode)
-        t->togglePauseMode();
-/*  
-   The following needs some cleanup because 
-   "string options.NetId" and "char *net_callsign" 
-*/
-    NetIdDialogInput->getValue(&net_callsign);
-    NetId = net_callsign;
-    
-    NetIdDialog_Cancel( NULL );
-    current_options.set_net_id( NetId.c_str() );
-    strcpy( fgd_callsign, net_callsign);
-//    strcpy( fgd_callsign, current_options.get_net_id().c_str());
-/* Entering a callsign indicates : user wants Net HUD Info */
-    net_hud_display = 1;
-
-    if( PauseMode != t->getPause() )
-        t->togglePauseMode();
-}
 
-void NewCallSign(puObject *cb)
-{
-    sprintf( NewNetId, "%s", current_options.get_net_id().c_str() );
-//    sprintf( NewNetId, "%s", fgd_callsign );
-    NetIdDialogInput->setValue( NewNetId );
-
-    FG_PUSH_PUI_DIALOG( NetIdDialog );
-}
-
-static void NewNetIdInit(void)
-{
-    sprintf( NewNetId, "%s", current_options.get_net_id().c_str() );
-//    sprintf( NewNetId, "%s", fgd_callsign );
-    int len = 150 - puGetStringWidth( puGetDefaultLabelFont(),
-                                      NewNetIdLabel ) / 2;
-
-    NetIdDialog = new puDialogBox (150, 50);
-    {
-        NetIdDialogFrame   = new puFrame           (0,0,350, 150);
-        NetIdDialogMessage = new puText            (len, 110);
-        NetIdDialogMessage ->    setLabel          (NewNetIdLabel);
-
-        NetIdDialogInput   = new puInput           (50, 70, 300, 100);
-        NetIdDialogInput   ->    setValue          (NewNetId);
-        NetIdDialogInput   ->    acceptInput();
-
-        NetIdDialogOkButton     =  new puOneShot   (50, 10, 110, 50);
-        NetIdDialogOkButton     ->     setLegend   (gui_msg_OK);
-        NetIdDialogOkButton     ->     setCallback (NetIdDialog_OK);
-        NetIdDialogOkButton     ->     makeReturnDefault(TRUE);
-
-        NetIdDialogCancelButton =  new puOneShot   (240, 10, 300, 50);
-        NetIdDialogCancelButton ->     setLegend   (gui_msg_CANCEL);
-        NetIdDialogCancelButton ->     setCallback (NetIdDialog_Cancel);
-
-    }
-    FG_FINALIZE_PUI_DIALOG( NetIdDialog );
+    if(!freeze)
+        globals->set_freeze( false );
 }
 
+#ifdef FG_NETWORK_OLK
 static void net_display_toggle( puObject *cb)
 {
 	net_hud_display = (net_hud_display) ? 0 : 1;
-        printf("Toggle net_hud_display : %d\n", net_hud_display);
+	printf("Toggle net_hud_display : %d\n", net_hud_display);
 }
 
 static void net_register( puObject *cb)
 {
 	fgd_send_com( "1", FGFS_host );
-        net_is_registered = 0;
-        printf("Registering to deamon\n");
+	net_is_registered = 0;
+	printf("Registering to deamon\n");
 }
 
 static void net_unregister( puObject *cb)
 {
 	fgd_send_com( "8", FGFS_host );
-        net_is_registered = -1;
-        printf("Unregistering from deamon\n");
-}
-
-
-/*************** Deamon communication **********/
-
-//  These statics should disapear when this is a class
-static puDialogBox     *NetFGDDialog = 0;
-static puFrame         *NetFGDDialogFrame = 0;
-static puText          *NetFGDDialogMessage = 0;
-//static puInput         *NetFGDDialogInput = 0;
-
-//static char NewNetId[16];
-static char NewNetFGDLabel[] = "Scan for deamon                        "; 
-static char NewFGDHost[64] = "olk.mcp.de"; 
-static int  NewFGDPortLo = 10000;
-static int  NewFGDPortHi = 10001;
- 
-//extern char *fgd_callsign;
-extern u_short base_port, end_port;
-extern int fgd_ip, verbose, current_port;
-extern char *fgd_host;
-
-
-static puOneShot       *NetFGDDialogOkButton = 0;
-static puOneShot       *NetFGDDialogCancelButton = 0;
-static puOneShot       *NetFGDDialogScanButton = 0;
-
-static puInput         *NetFGDHostDialogInput = 0;
-static puInput         *NetFGDPortLoDialogInput = 0;
-static puInput         *NetFGDPortHiDialogInput = 0;
-
-void NetFGDDialog_Cancel(puObject *)
-{
-    FG_POP_PUI_DIALOG( NetFGDDialog );
-}
-
-void NetFGDDialog_OK (puObject *)
-{
-    char *NetFGD;    
-
-    FGTime *t = FGTime::cur_time_params;
-    int PauseMode = t->getPause();
-    if(!PauseMode) t->togglePauseMode();
-    NetFGDHostDialogInput->getValue( &NetFGD );
-    strcpy( fgd_host, NetFGD);
-    NetFGDPortLoDialogInput->getValue( (int *) &base_port );
-    NetFGDPortHiDialogInput->getValue( (int *) &end_port );
-    NetFGDDialog_Cancel( NULL );
-    if( PauseMode != t->getPause() )
-        t->togglePauseMode();
-}
-
-void NetFGDDialog_SCAN (puObject *)
-{
-    char *NetFGD;
-    int fgd_port;
-    
-    FGTime *t = FGTime::cur_time_params;
-    int PauseMode = t->getPause();
-    if(!PauseMode) t->togglePauseMode();
-//    printf("Vor getvalue %s\n");
-    NetFGDHostDialogInput->getValue( &NetFGD );
-//    printf("Vor strcpy %s\n", (char *) NetFGD);
-    strcpy( fgd_host, NetFGD);
-    NetFGDPortLoDialogInput->getValue( (int *) &base_port );
-    NetFGDPortHiDialogInput->getValue( (int *) &end_port );
-    printf("FGD: %s  Port-Start: %d Port-End: %d\n", fgd_host, 
-                 base_port, end_port);
-    net_resolv_fgd(fgd_host);
-    printf("Resolve : %d\n", net_r);
-    if( PauseMode != t->getPause() )  t->togglePauseMode();
-    if ( net_r == 0 ) {
-      fgd_port = 10000;
-      strcpy( fgd_name, "");
-      for( current_port = base_port; ( current_port <= end_port); current_port++) {
-          fgd_send_com("0" , FGFS_host);
-          sprintf( NewNetFGDLabel , "Scanning for deamon Port: %d", current_port); 
-          printf("FGD: searching %s\n", fgd_name);
-          if ( strcmp( fgd_name, "") != 0 ) {
-             sprintf( NewNetFGDLabel , "Found %s at Port: %d", 
-                                              fgd_name, current_port);
-             fgd_port = current_port;
-             current_port = end_port+1;
-          }
-      }
-      current_port = end_port = base_port = fgd_port;
-    }
-    NetFGDDialog_Cancel( NULL );
-}
-
-
-void net_fgd_scan(puObject *cb)
-{
-    NewFGDPortLo = base_port;
-    NewFGDPortHi = end_port;
-    strcpy( NewFGDHost, fgd_host);
-    NetFGDPortLoDialogInput->setValue( NewFGDPortLo );
-    NetFGDPortHiDialogInput->setValue( NewFGDPortHi );
-    NetFGDHostDialogInput->setValue( NewFGDHost );
-
-    FG_PUSH_PUI_DIALOG( NetFGDDialog );
-}
-
-
-static void NewNetFGDInit(void)
-{
-//    sprintf( NewNetId, "%s", current_options.get_net_id().c_str() );
-//    sprintf( NewNetId, "%s", fgd_callsign );
-    int len = 170 - puGetStringWidth( puGetDefaultLabelFont(),
-                                      NewNetFGDLabel ) / 2;
-
-    NetFGDDialog = new puDialogBox (310, 30);
-    {
-        NetFGDDialogFrame   = new puFrame           (0,0,320, 170);
-        NetFGDDialogMessage = new puText            (len, 140);
-        NetFGDDialogMessage ->    setLabel          (NewNetFGDLabel);
-
-        NetFGDPortLoDialogInput   = new puInput           (50, 70, 127, 100);
-        NetFGDPortLoDialogInput   ->    setValue          (NewFGDPortLo);
-        NetFGDPortLoDialogInput   ->    acceptInput();
-
-        NetFGDPortHiDialogInput   = new puInput           (199, 70, 275, 100);
-        NetFGDPortHiDialogInput   ->    setValue          (NewFGDPortHi);
-        NetFGDPortHiDialogInput   ->    acceptInput();
-
-        NetFGDHostDialogInput   = new puInput           (50, 100, 275, 130);
-        NetFGDHostDialogInput   ->    setValue          (NewFGDHost);
-        NetFGDHostDialogInput   ->    acceptInput();
-
-        NetFGDDialogScanButton     =  new puOneShot   (130, 10, 200, 50);
-        NetFGDDialogScanButton     ->     setLegend   ("Scan");
-        NetFGDDialogScanButton     ->     setCallback (NetFGDDialog_SCAN);
-        NetFGDDialogScanButton     ->     makeReturnDefault(FALSE);
-
-        NetFGDDialogOkButton     =  new puOneShot   (50, 10, 120, 50);
-        NetFGDDialogOkButton     ->     setLegend   (gui_msg_OK);
-        NetFGDDialogOkButton     ->     setCallback (NetFGDDialog_OK);
-        NetFGDDialogOkButton     ->     makeReturnDefault(TRUE);
-
-        NetFGDDialogCancelButton =  new puOneShot   (210, 10, 280, 50);
-        NetFGDDialogCancelButton ->     setLegend   (gui_msg_CANCEL);
-        NetFGDDialogCancelButton ->     setCallback (NetFGDDialog_Cancel);
-
-    }
-    FG_FINALIZE_PUI_DIALOG( NetFGDDialog );
-}
-
-/*
-static void net_display_toggle( puObject *cb)
-{
-	net_hud_display = (net_hud_display) ? 0 : 1;
-        printf("Toggle net_hud_display : %d\n", net_hud_display);
+	net_is_registered = -1;
+	printf("Unregistering from deamon\n");
 }
 
-*/
-
-#endif
-
-/***************  End Networking  **************/
-
-
+extern void net_fgd_scan(puObject *cb);
+#endif // #ifdef FG_NETWORK_OLK
 
 /* -----------------------------------------------------------------------
 The menu stuff 
@@ -1358,8 +847,12 @@ char *fileSubmenu               [] = {
     "Print",
 #endif
     "Snap Shot",
-    /* "---------", "Save", */ 
-    "Reset", NULL
+    "Hires Snap Shot",
+    "---------", 
+    "Reset", 
+    "Load flight",
+    "Save flight",
+    NULL
 };
 puCallback fileSubmenuCb        [] = {
     MayBeGoodBye, /* hideMenuCb, NULL, */
@@ -1368,7 +861,12 @@ puCallback fileSubmenuCb        [] = {
 #endif
     /* NULL, notCb, */
     dumpSnapShot,
-    reInit, NULL
+    dumpHiResSnapShot,
+    NULL,
+    reInit, 
+    loadFlight,
+    saveFlight,
+    NULL
 };
 
 /*
@@ -1380,24 +878,42 @@ puCallback editSubmenuCb        [] = {
 };
 */
 
+extern void fgHUDalphaAdjust( puObject * );
 char *viewSubmenu               [] = {
-    /* "Cockpit View > ", "View >","------------", */ "Toggle Panel...", NULL
+    "HUD Alpha",
+    "Pilot Offset",
+    /* "Cockpit View > ", "View >","------------", */
+    "Toggle Panel...", NULL
 };
 puCallback viewSubmenuCb        [] = {
-    /* notCb, notCb, NULL, guiTogglePanel, */ NULL
+    fgHUDalphaAdjust,
+    PilotOffsetAdjust,
+    /* notCb, notCb, NULL, */
+    guiTogglePanel, NULL
 };
 
-char *aircraftSubmenu           [] = {
-    "Autopilot", "Heading", "Altitude", "Navigation", "Airport", 
-    /* "Communication", */ NULL
+//  "---------", 
+
+char *autopilotSubmenu           [] = {
+    "Toggle HUD Format", "Adjust AP Settings",
+    "---------", 
+    "Clear Route", "Skip Current Waypoint", "Add Waypoint",
+    "---------", 
+    "Set Altitude", "Set Heading",
+    NULL
 };
-puCallback aircraftSubmenuCb    [] = {
-    fgAPAdjust, NewHeading, NewAltitude, fgLatLonFormatToggle, NewTgtAirport, 
+
+puCallback autopilotSubmenuCb    [] = {
+    fgLatLonFormatToggle, fgAPAdjust,
+    NULL,
+    ClearRoute, PopWayPoint, AddWayPoint,
+    NULL,
+    NewAltitude, NewHeading,
     /* notCb, */ NULL
 };
 
 char *environmentSubmenu        [] = {
-    "Airport", /* "Terrain", "Weather", */ NULL
+    "Goto Airport", /* "Terrain", "Weather", */ NULL
 };
 puCallback environmentSubmenuCb [] = {
     NewAirport, /* notCb, notCb, */ NULL
@@ -1458,12 +974,12 @@ void guiInit()
     gui_msg_RESET  = msg_RESET;  // "RESET"
 
     // Next check home directory
-    FGPath fntpath;
+    SGPath fntpath;
     char* envp = ::getenv( "FG_FONTS" );
     if ( envp != NULL ) {
         fntpath.set( envp );
     } else {
-        fntpath.set( current_options.get_fg_root() );
+        fntpath.set( globals->get_fg_root() );
 	fntpath.append( "Fonts" );
     }
 
@@ -1475,7 +991,7 @@ void guiInit()
     puSetDefaultFonts( GuiFont, GuiFont ) ;
     guiFnt = puGetDefaultLabelFont();
   
-    if ( current_options.get_mouse_pointer() == 0 ) {
+    if (!fgHasNode("/sim/startup/mouse-pointer")) {
         // no preference specified for mouse pointer, attempt to autodetect...
         // Determine if we need to render the cursor, or if the windowing
         // system will do it.  First test if we are rendering with glide.
@@ -1489,19 +1005,17 @@ void guiInit()
                 }
             }
         }
-        mouse_active = ~mouse_active;
-    } else if ( current_options.get_mouse_pointer() == 1 ) {
+//        mouse_active = ~mouse_active;
+    } else if ( !fgGetBool("/sim/startup/mouse-pointer") ) {
         // don't show pointer
-    } else if ( current_options.get_mouse_pointer() == 2 ) {
+    } else {
         // force showing pointer
         puShowCursor();
-        mouse_active = ~mouse_active;
+//        mouse_active = ~mouse_active;
     }
 	
     // MOUSE_VIEW mode stuff
-    trackball(_quat0, 0.0, 0.0, 0.0, 0.0);  
-    Quat0();
-    build_rotmatrix(quat_mat, curquat);
+	initMouseQuat();
 
     // Set up our Dialog Boxes
     ConfirmExitDialogInit();
@@ -1510,358 +1024,25 @@ void guiInit()
     NewNetIdInit();
     NewNetFGDInit();
 #endif
-    mkDialogInit();
+
+	mkDialogInit();
     
     // Make the menu bar
     mainMenuBar = new puMenuBar ();
     mainMenuBar -> add_submenu ("File", fileSubmenu, fileSubmenuCb);
     // mainMenuBar -> add_submenu ("Edit", editSubmenu, editSubmenuCb);
     mainMenuBar -> add_submenu ("View", viewSubmenu, viewSubmenuCb);
-    mainMenuBar -> add_submenu ("Aircraft", aircraftSubmenu, aircraftSubmenuCb);
     mainMenuBar -> add_submenu ("Environment", environmentSubmenu, environmentSubmenuCb);
+    mainMenuBar -> add_submenu ("Autopilot", autopilotSubmenu, autopilotSubmenuCb);
     // mainMenuBar -> add_submenu ("Options", optionsSubmenu, optionsSubmenuCb);
 #ifdef FG_NETWORK_OLK
-    mainMenuBar -> add_submenu ("Network", networkSubmenu, networkSubmenuCb);
+    if ( fgGetBool("/sim/networking/network-olk") ) {
+    	mainMenuBar -> add_submenu ("Network", networkSubmenu, networkSubmenuCb);
+    }
 #endif
     mainMenuBar -> add_submenu ("Help", helpSubmenu, helpSubmenuCb);
     mainMenuBar-> close ();
     // Set up menu bar toggle
-    menu_on = ~0;
-}
-
-
-
-/*
- * Trackball code:
- *
- * Implementation of a virtual trackball.
- * Implemented by Gavin Bell, lots of ideas from Thant Tessman and
- *   the August '88 issue of Siggraph's "Computer Graphics," pp. 121-129.
- *
- * Vector manip code:
- *
- * Original code from:
- * David M. Ciemiewicz, Mark Grossman, Henry Moreton, and Paul Haeberli
- *
- * Much mucking with by:
- * Gavin Bell
- */
-#if defined(_WIN32) && !defined( __CYGWIN32__ )
-#pragma warning (disable:4244)          /* disable bogus conversion warnings */
-#endif
-#include <math.h>
-#include <stdio.h>
-//#include "trackball.h"
-
-/*
- * This size should really be based on the distance from the center of
- * rotation to the point on the object underneath the mouse.  That
- * point would then track the mouse as closely as possible.  This is a
- * simple example, though, so that is left as an Exercise for the
- * Programmer.
- */
-#define TRACKBALLSIZE  (0.8f)
-#define SQRT(x) sqrt(x)
-
-/*
- * Local function prototypes (not defined in trackball.h)
- */
-static float tb_project_to_sphere(float, float, float);
-static void normalize_quat(float [4]);
-
-static void
-vzero(float *v)
-{
-    v[0] = 0.0;
-    v[1] = 0.0;
-    v[2] = 0.0;
-}
-
-static void
-vset(float *v, float x, float y, float z)
-{
-    v[0] = x;
-    v[1] = y;
-    v[2] = z;
-}
-
-static void
-vsub(const float *src1, const float *src2, float *dst)
-{
-    dst[0] = src1[0] - src2[0];
-    dst[1] = src1[1] - src2[1];
-    dst[2] = src1[2] - src2[2];
-}
-
-static void
-vcopy(const float *v1, float *v2)
-{
-    register int i;
-    for (i = 0 ; i < 3 ; i++)
-        v2[i] = v1[i];
-}
-
-static void
-vcross(const float *v1, const float *v2, float *cross)
-{
-    float temp[3];
-
-    temp[0] = (v1[1] * v2[2]) - (v1[2] * v2[1]);
-    temp[1] = (v1[2] * v2[0]) - (v1[0] * v2[2]);
-    temp[2] = (v1[0] * v2[1]) - (v1[1] * v2[0]);
-    vcopy(temp, cross);
-}
-
-static float
-vlength(const float *v)
-{
-    float tmp = v[0] * v[0] + v[1] * v[1] + v[2] * v[2];
-    return SQRT(tmp);
-}
-
-static void
-vscale(float *v, float div)
-{
-    v[0] *= div;
-    v[1] *= div;
-    v[2] *= div;
-}
-
-static void
-vnormal(float *v)
-{
-    vscale(v,1.0/vlength(v));
-}
-
-static float
-vdot(const float *v1, const float *v2)
-{
-    return v1[0]*v2[0] + v1[1]*v2[1] + v1[2]*v2[2];
-}
-
-static void
-vadd(const float *src1, const float *src2, float *dst)
-{
-    dst[0] = src1[0] + src2[0];
-    dst[1] = src1[1] + src2[1];
-    dst[2] = src1[2] + src2[2];
-}
-
-/*
- *  Given an axis and angle, compute quaternion.
- */
-void
-axis_to_quat(float a[3], float phi, float q[4])
-{
-    double sinphi2, cosphi2;
-    double phi2 = phi/2.0;
-    sinphi2 = sin(phi2);
-    cosphi2 = cos(phi2);
-    vnormal(a);
-    vcopy(a,q);
-    vscale(q,sinphi2);
-    q[3] = cosphi2;
-}
-
-/*
- * Project an x,y pair onto a sphere of radius r OR a hyperbolic sheet
- * if we are away from the center of the sphere.
- */
-static float
-tb_project_to_sphere(float r, float x, float y)
-{
-    float d, t, z, tmp;
-
-    tmp = x*x + y*y;
-    d = SQRT(tmp);
-    if (d < r * 0.70710678118654752440) {    /* Inside sphere */
-        tmp = r*r - d*d;
-        z = SQRT(tmp);
-    } else {           /* On hyperbola */
-        t = r / 1.41421356237309504880;
-        z = t*t / d;
-    }
-    return z;
-}
-
-/*
- * Quaternions always obey:  a^2 + b^2 + c^2 + d^2 = 1.0
- * If they don't add up to 1.0, dividing by their magnitued will
- * renormalize them.
- *
- * Note: See the following for more information on quaternions:
- *
- * - Shoemake, K., Animating rotation with quaternion curves, Computer
- *   Graphics 19, No 3 (Proc. SIGGRAPH'85), 245-254, 1985.
- * - Pletinckx, D., Quaternion calculus as a basic tool in computer
- *   graphics, The Visual Computer 5, 2-13, 1989.
- */
-static void
-normalize_quat(float q[4])
-{
-    int i;
-    float mag, tmp;
-
-    tmp = q[0]*q[0] + q[1]*q[1] + q[2]*q[2] + q[3]*q[3];
-    mag = 1.0 / SQRT(tmp);
-    for (i = 0; i < 4; i++)
-        q[i] *= mag;
-}
-
-/*
- * Ok, simulate a track-ball.  Project the points onto the virtual
- * trackball, then figure out the axis of rotation, which is the cross
- * product of P1 P2 and O P1 (O is the center of the ball, 0,0,0)
- * Note:  This is a deformed trackball-- is a trackball in the center,
- * but is deformed into a hyperbolic sheet of rotation away from the
- * center.  This particular function was chosen after trying out
- * several variations.
- *
- * It is assumed that the arguments to this routine are in the range
- * (-1.0 ... 1.0)
- */
-void
-trackball(float q[4], float p1x, float p1y, float p2x, float p2y)
-{
-    float a[3]; /* Axis of rotation */
-    float phi;  /* how much to rotate about axis */
-    float p1[3], p2[3], d[3];
-    float t;
-
-    if (p1x == p2x && p1y == p2y) {
-        /* Zero rotation */
-        vzero(q);
-        q[3] = 1.0;
-        return;
-    }
-
-    /*
-     * First, figure out z-coordinates for projection of P1 and P2 to
-     * deformed sphere
-     */
-    vset(p1,p1x,p1y,tb_project_to_sphere(TRACKBALLSIZE,p1x,p1y));
-    vset(p2,p2x,p2y,tb_project_to_sphere(TRACKBALLSIZE,p2x,p2y));
-
-    /*
-     *  Now, we want the cross product of P1 and P2
-     */
-    vcross(p2,p1,a);
-
-    /*
-     *  Figure out how much to rotate around that axis.
-     */
-    vsub(p1,p2,d);
-    t = vlength(d) / (2.0*TRACKBALLSIZE);
-
-    /*
-     * Avoid problems with out-of-control values...
-     */
-    if (t > 1.0) t = 1.0;
-    if (t < -1.0) t = -1.0;
-    phi = 2.0 * asin(t);
-
-    axis_to_quat(a,phi,q);
-}
-
-/*
- * Given two rotations, e1 and e2, expressed as quaternion rotations,
- * figure out the equivalent single rotation and stuff it into dest.
- *
- * This routine also normalizes the result every RENORMCOUNT times it is
- * called, to keep error from creeping in.
- *
- * NOTE: This routine is written so that q1 or q2 may be the same
- * as dest (or each other).
- */
-
-#define RENORMCOUNT 97
-
-void
-add_quats(float q1[4], float q2[4], float dest[4])
-{
-    static int count=0;
-    float t1[4], t2[4], t3[4];
-    float tf[4];
-
-#if 0
-printf("q1 = %f %f %f %f\n", q1[0], q1[1], q1[2], q1[3]);
-printf("q2 = %f %f %f %f\n", q2[0], q2[1], q2[2], q2[3]);
-#endif
-
-    vcopy(q1,t1);
-    vscale(t1,q2[3]);
-
-    vcopy(q2,t2);
-    vscale(t2,q1[3]);
-
-    vcross(q2,q1,t3);
-    vadd(t1,t2,tf);
-    vadd(t3,tf,tf);
-    tf[3] = q1[3] * q2[3] - vdot(q1,q2);
-
-#if 0
-printf("tf = %f %f %f %f\n", tf[0], tf[1], tf[2], tf[3]);
-#endif
-
-    dest[0] = tf[0];
-    dest[1] = tf[1];
-    dest[2] = tf[2];
-    dest[3] = tf[3];
-
-    if (++count > RENORMCOUNT) {
-        count = 0;
-        normalize_quat(dest);
-    }
-}
-
-/*
- * Build a rotation matrix, given a quaternion rotation.
- *
- */
-void
-build_rotmatrix(float m[4][4], float q[4])
-{
-//#define TRANSPOSED_QUAT
-#ifndef TRANSPOSED_QUAT
-    m[0][0] = 1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]);
-    m[0][1] = 2.0 * (q[0] * q[1] - q[2] * q[3]);
-    m[0][2] = 2.0 * (q[2] * q[0] + q[1] * q[3]);
-    m[0][3] = 0.0;
-
-    m[1][0] = 2.0 * (q[0] * q[1] + q[2] * q[3]);
-    m[1][1]= 1.0 - 2.0 * (q[2] * q[2] + q[0] * q[0]);
-    m[1][2] = 2.0 * (q[1] * q[2] - q[0] * q[3]);
-    m[1][3] = 0.0;
-
-    m[2][0] = 2.0 * (q[2] * q[0] - q[1] * q[3]);
-    m[2][1] = 2.0 * (q[1] * q[2] + q[0] * q[3]);
-    m[2][2] = 1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]);
-    
-    m[2][3] = 0.0;
-    m[3][0] = 0.0;
-    m[3][1] = 0.0;
-    m[3][2] = 0.0;
-    m[3][3] = 1.0;
-#else //  TRANSPOSED_QUAT
-    m[0][0] = 1.0 - 2.0 * (q[1] * q[1] + q[2] * q[2]);
-    m[0][1] = 2.0 * (q[0] * q[1] + q[2] * q[3]);
-    m[0][2] = 2.0 * (q[2] * q[0] - q[1] * q[3]);
-    m[0][3] = 0.0;
-
-    m[1][0] = 2.0 * (q[0] * q[1] - q[2] * q[3]);
-    m[1][1] = 1.0 - 2.0 * (q[2] * q[2] + q[0] * q[0]);
-    m[1][2] = 2.0 * (q[1] * q[2] + q[0] * q[3]);
-    m[1][3] = 0.0;
-
-    m[2][0] = 2.0 * (q[2] * q[0] + q[1] * q[3]);
-    m[2][1] = 2.0 * (q[1] * q[2] - q[0] * q[3]);
-    m[2][2] = 1.0 - 2.0 * (q[1] * q[1] + q[0] * q[0]);
-    m[2][3] = 0.0;
-    
-    m[3][0] = 0.0;
-    m[3][1] = 0.0;
-    m[3][2] = 0.0;
-    m[3][3] = 1.0;
-#endif // 0
+    gui_menu_on = ~0;
 }