Activated gyro drift ... look out!

Cleaned a bit of cruft out of gui.[ch]xx
Cleaned up win_ratio() and fov code to make more sense and be a bit more
consistant and robust and less buggy and less susceptible to screw ups.
Panel is activated now by default, HUD is off by default.

src/Cockpit/steam.cxx

@@ -323,7 +323,7 @@ void FGSteam::_CatchUp()
 */
  	if ( _UpdatesPending > 999999 )
 	    the_DG_err = FGBFI::getMagVar();
- 	the_DG_degps = 0.0; /* HACK! */
+ 	the_DG_degps = 0.01; /* HACK! */
  	if (dt<1.0) the_DG_err += dt * the_DG_degps;
  	the_DG_deg = FGBFI::getHeading () - the_DG_err;
 

src/GUI/gui.cxx

@@ -667,26 +667,6 @@ void mkDialog (const char *txt)
     FG_PUSH_PUI_DIALOG( dialogBox );
 }
 
-// Repair any damage done to the Panel by other Gui Items
-void guiFixPanel( void )
-{
-#if 0 // this function does nothing anyway
-    bool freeze = globals->get_freeze();
-
-    if ( current_options.get_panel_status() ) {
-        // FGView *v = &current_view;
-        if( !freeze )
-            globals->set_freeze( true );
-
-	// we must have some something here at some point but this
-	// function does nothing now.
-
-        if( !freeze )
-            globals->set_freeze( false );
-    }
-#endif
-}
-
 // Toggle the Menu and Mouse display state
 void guiToggleMenu(void)
 {

src/GUI/gui.h

@@ -37,7 +37,6 @@ extern void BusyCursor( int restore );
 extern void guiToggleMenu(void);
 extern void mkDialog(const char *txt);
 extern void ConfirmExitDialog(void);
-extern void guiFixPanel( void );
 
 extern void fgDumpSnapShot();
 
@@ -66,7 +65,6 @@ extern char *gui_msg_RESET;  // "RESET"
 #define FG_POP_PUI_DIALOG( X ) \
     (X)->hide(); \
     puPopLiveInterface(); \
-    guiFixPanel(); \
     maybeToggleMouse();
 
 // Finalize Dialog Box Construction 

src/Main/main.cxx

@@ -480,7 +480,8 @@ void fgRenderFrame( void ) {
 	// glMatrixMode( GL_PROJECTION );
 	// glLoadIdentity();
  	float fov = current_options.get_fov();
- 	ssgSetFOV(fov * current_view.get_win_ratio(), fov);
+ 	// ssgSetFOV(fov * current_view.get_win_ratio(), fov);
+ 	ssgSetFOV(fov, fov * current_view.get_win_ratio());
 
 	double agl = current_aircraft.fdm_state->get_Altitude() * FEET_TO_METER
 	    - scenery.cur_elev;
@@ -1111,12 +1112,11 @@ static void fgIdleFunction ( void ) {
 // options.cxx needs to see this for toggle_panel()
 // Handle new window size or exposure
 void fgReshape( int width, int height ) {
-    if ( ! current_options.get_panel_status() ) {
-	current_view.set_win_ratio( (GLfloat) width / (GLfloat) height );
+    if ( ! current_options.get_panel_status() || idle_state != 1000 ) {
+	current_view.set_win_ratio( height / width );
 	glViewport(0, 0 , (GLint)(width), (GLint)(height) );
     } else {
-	current_view.set_win_ratio( (GLfloat) width / 
-	                            ((GLfloat) (height)*0.4232) );
+	current_view.set_win_ratio( (height*0.4232) / width );
 	glViewport(0, (GLint)((height)*0.5768),
 		   (GLint)(width), (GLint)((height)*0.4232) );
     }
@@ -1132,7 +1132,8 @@ void fgReshape( int width, int height ) {
 
     // glViewport ( 0, 0, width, height );
     float fov = current_options.get_fov();
-    ssgSetFOV(fov * current_view.get_win_ratio(), fov);
+    // ssgSetFOV(fov * current_view.get_win_ratio(), fov);
+    ssgSetFOV(fov, fov * current_view.get_win_ratio());
 
     fgHUDReshape();
 

src/Main/options.cxx

@@ -160,8 +160,8 @@ fgOPTIONS::fgOPTIONS() :
     auto_coordination(FG_AUTO_COORD_NOT_SPECIFIED),
 
     // Features
-    hud_status(1),
-    panel_status(0),
+    hud_status(0),
+    panel_status(1),
     sound(1),
     anti_alias_hud(0),
 
@@ -182,8 +182,8 @@ fgOPTIONS::fgOPTIONS() :
     skyblend(1),
     textures(1),
     wireframe(0),
-    xsize(640),
-    ysize(480),
+    xsize(800),
+    ysize(600),
     bpp(16),
     view_mode(FG_VIEW_PILOT),
 
@@ -257,11 +257,14 @@ fgOPTIONS::toggle_panel() {
 	if ( current_panel != NULL )
 	  current_panel->setVisibility(true);
     }
-    if ( panel_status ) {
+
+    // new rule .. "fov" shouldn't get messed with like this.
+    /* if ( panel_status ) {
 	fov *= 0.4232;
     } else {
 	fov *= (1.0 / 0.4232);
-    }
+    } */
+
     // fgReshape( xsize, ysize);
     fgReshape( current_view.get_winWidth(), current_view.get_winHeight() );
 
@@ -633,8 +636,8 @@ int fgOPTIONS::parse_option( const string& arg ) {
     } else if ( arg == "--enable-panel" ) {
 	panel_status = true;
 	if ( current_panel != NULL )
-	  current_panel->setVisibility(true);
-	fov *= 0.4232;
+	    current_panel->setVisibility(true);
+	// fov *= 0.4232; /* NO!!! */
     } else if ( arg == "--disable-sound" ) {
 	sound = false;
     } else if ( arg == "--enable-sound" ) {

src/Main/views.cxx

@@ -42,10 +42,6 @@
 #include "views.hxx"
 
 
-// temporary (hopefully) hack
-static int panel_hist = 0;
-
-
 // This is a record containing current view parameters for the current
 // aircraft position
 FGView pilot_view;
@@ -72,10 +68,9 @@ void FGView::Init( void ) {
     winHeight = current_options.get_ysize();
 
     if ( ! current_options.get_panel_status() ) {
-	set_win_ratio( (GLfloat) winWidth / (GLfloat) winHeight );
+	set_win_ratio( winHeight / winWidth );
     } else {
-	set_win_ratio( (GLfloat) winWidth / 
-		       ((GLfloat) (winHeight)*0.4232) );
+	set_win_ratio( (winHeight*0.4232) / winWidth );
     }
 
     // This never changes -- NHV
@@ -137,6 +132,7 @@ inline static void fgMakeLOCAL( sgMat4 dst, const double Theta,
 }
 #endif
 
+
 // Update the view volume, position, and orientation
 void FGView::UpdateViewParams( const FGInterface& f ) {
     UpdateViewMath(f);
@@ -147,8 +143,6 @@ void FGView::UpdateViewParams( const FGInterface& f ) {
 	xglViewport(0, (GLint)((winHeight)*0.5768), (GLint)(winWidth), 
 		    (GLint)((winHeight)*0.4232) );
     }
-
-    panel_hist = current_options.get_panel_status();
 }
 
 

src/Main/views.hxx

@@ -64,7 +64,7 @@ public:
     bool update_fov;
 	
     // fov of view is specified in the y direction, win_ratio is used to
-    // calculate the fov in the X direction = width/height
+    // calculate the fov in the X direction = width / height
     double win_ratio;
 
     // width & height of window