Reset: explicit close-window function.

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

diff --git a/src/Main/util.cxx b/src/Main/util.cxx
index 61e0681654dde59ba06a15967d8b7f67b7740ba8..5eed377345eeeb3cc6bb20d1d30b4a5c9732f3f7 100644 (file)
--- a/src/Main/util.cxx
+++ b/src/Main/util.cxx
@@ -1,5 +1,5 @@
 // util.cxx - general-purpose utility functions.
-// Copyright (C) 2002  Curtis L. Olson  - curt@me.umn.edu
+// Copyright (C) 2002  Curtis L. Olson  - http://www.flightgear.org/~curt
 //
 // This program is free software; you can redistribute it and/or
 // modify it under the terms of the GNU General Public License as
@@ -13,21 +13,43 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 //
 // $Id$
 
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <simgear/compiler.h>
 
 #include <math.h>
+
+#include <cstdlib>
+
+#include <vector>
+
+#include <simgear/debug/logstream.hxx>
+#include <simgear/math/SGLimits.hxx>
+#include <simgear/math/SGMisc.hxx>
+
+#include "fg_io.hxx"
+#include "fg_props.hxx"
+#include "globals.hxx"
 #include "util.hxx"
 
+#ifdef OSG_LIBRARY_STATIC
+#include "osgDB/Registry"
+#endif
+
+using std::vector;
 
 // Originally written by Alex Perry.
 double
 fgGetLowPass (double current, double target, double timeratio)
 {
     if ( timeratio < 0.0 ) {
-       if ( timeratio < -1.0 ) {
+        if ( timeratio < -1.0 ) {
                                 // time went backwards; kill the filter
                 current = target;
         } else {
@@ -49,5 +71,32 @@ fgGetLowPass (double current, double target, double timeratio)
     return current;
 }
 
+// Write out path to validation node and read it back in. A Nasal
+// listener is supposed to replace the path with a validated version
+// or an empty string otherwise.
+const char *fgValidatePath (const char *str, bool write)
+{
+    SGPropertyNode_ptr r, w;
+    r = fgGetNode("/sim/paths/validate/read", true);
+    r->setAttribute(SGPropertyNode::READ, true);
+    r->setAttribute(SGPropertyNode::WRITE, true);
+
+    w = fgGetNode("/sim/paths/validate/write", true);
+    w->setAttribute(SGPropertyNode::READ, true);
+    w->setAttribute(SGPropertyNode::WRITE, true);
+
+    SGPropertyNode *prop = write ? w : r;
+    prop->setStringValue(str);
+    const char *result = prop->getStringValue();
+    return result[0] ? result : 0;
+}
+
+//------------------------------------------------------------------------------
+std::string fgValidatePath(const std::string& path, bool write)
+{
+  const char* validate_path = fgValidatePath(path.c_str(), write);
+  return std::string(validate_path ? validate_path : "");
+}
+
 // end of util.cxx