Added a "Presets" menu.

[flightgear.git] / src / Main / globals.cxx

diff --git a/src/Main/globals.cxx b/src/Main/globals.cxx
index ab752033b401603ef4dd8dcf6389a18ba22bda48..b8341e4c755e960e1fc90bfc7123585c6161fe63 100644 (file)
--- a/src/Main/globals.cxx
+++ b/src/Main/globals.cxx
@@ -21,9 +21,20 @@
 // $Id$
 
 
+#include <simgear/misc/commands.hxx>
+
+#include <Environment/environment_mgr.hxx>
+
 #include "globals.hxx"
+#include "viewmgr.hxx"
+
 #include "fg_props.hxx"
+#include "fg_io.hxx"
 
+\f
+////////////////////////////////////////////////////////////////////////
+// Implementation of FGGlobals.
+////////////////////////////////////////////////////////////////////////
 
 // global global :-)
 FGGlobals *globals;
@@ -31,23 +42,82 @@ FGGlobals *globals;
 
 // Constructor
 FGGlobals::FGGlobals() :
-    freeze( false ),
+    subsystem_mgr(new FGSubsystemMgr),
+    sim_time_sec(0.0),
+#if defined(FX) && defined(XMESA)
+    fullscreen( true ),
+#endif
     warp( 0 ),
-    warp_delta( 0 )
+    warp_delta( 0 ),
+    props(new SGPropertyNode),
+    initial_state(0),
+    locale(NULL),
+    commands(new SGCommandMgr),
+    io(new FGIO)
 {
-                               // TODO: move to a proper bind method
-//   fgTie("/sim/freeze", &freeze);
-//   fgTie("/sim/warp", &warp);
-//   fgTie("/sim/warp-delta", &warp_delta);
 }
 
 
 // Destructor
 FGGlobals::~FGGlobals() 
 {
-                               // TODO: move to a proper unbind method
-//   fgUntie("/sim/freeze");
-//   fgUntie("/sim/warp");
-//   fgUntie("/sim/warp-delta");
+  delete subsystem_mgr;
+  delete initial_state;
+  delete props;
+  delete commands;
+  delete io;
+}
+
+
+// Save the current state as the initial state.
+void
+FGGlobals::saveInitialState ()
+{
+  delete initial_state;
+  initial_state = new SGPropertyNode();
+  if (!copyProperties(props, initial_state))
+    SG_LOG(SG_GENERAL, SG_ALERT, "Error saving initial state");
+}
+
+
+// Restore the saved initial state, if any
+void
+FGGlobals::restoreInitialState ()
+{
+    if ( initial_state == 0 ) {
+        SG_LOG(SG_GENERAL, SG_ALERT,
+               "No initial state available to restore!!!");
+        return;
+    }
+
+    SGPropertyNode *currentPresets = new SGPropertyNode;
+    SGPropertyNode *targetNode = fgGetNode( "/sim/presets" );
+
+    // stash the /sim/presets tree
+    if ( !copyProperties(targetNode, currentPresets) ) {
+        SG_LOG( SG_GENERAL, SG_ALERT, "Failed to save /sim/presets subtree" );
+    }
+    
+    if ( copyProperties(initial_state, props) ) {
+        SG_LOG( SG_GENERAL, SG_INFO, "Initial state restored successfully" );
+    } else {
+        SG_LOG( SG_GENERAL, SG_INFO,
+                "Some errors restoring initial state (read-only props?)" );
+    }
+
+    // recover the /sim/presets tree
+    if ( !copyProperties(currentPresets, targetNode) ) {
+        SG_LOG( SG_GENERAL, SG_ALERT,
+                "Failed to restore /sim/presets subtree" );
+    }
+
+   delete currentPresets;
+}
+
+FGViewer *
+FGGlobals::get_current_view () const
+{
+  return viewmgr->get_current_view();
 }
 
+// end of globals.cxx