first commit

2022-10-20 20:29:11 +08:00
commit 4d531f8044
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+//
+//  Written and (c) Torsten Dreyer - Torsten(at)t3r_dot_de
+//
+//  This program is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU General Public License as
+//  published by the Free Software Foundation; either version 2 of the
+//  License, or (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful, but
+//  WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  General Public License for more details.
+//
+//  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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//
+
+#ifdef _WIN32
+# include <direct.h> // for getcwd()
+#else // !_WIN32
+# include <unistd.h>
+#endif
+
+#include "ApplicationProperties.hxx"
+
+double
+ApplicationProperties::getDouble (const char *name, const double def) {
+  const SGPropertyNode_ptr n (ApplicationProperties::Properties->getNode (name, false));
+  if (n == NULL) {
+    return def;
+  }
+  return n->getDoubleValue ();
+}
+
+SGPath
+ApplicationProperties::GetCwd () {
+  SGPath path (".");
+  char buf[512];
+  char *cwd (getcwd (buf, 511));
+  buf[511] = '\0';
+  if (cwd) {
+    path = SGPath::fromLocal8Bit (cwd);
+  }
+  return path;
+}
+
+SGPath
+ApplicationProperties::GetRootPath (const char *sub) {
+  if (sub != NULL) {
+    const SGPath subpath (sub);
+
+    // relative path to current working dir?
+    if (subpath.isRelative ()) {
+      SGPath path (GetCwd ());
+      path.append (sub);
+      if (path.exists ()) {
+        return path;
+      }
+    } else if (subpath.exists ()) {
+      // absolute path
+      return subpath;
+    }
+  }
+
+  // default: relative path to FGROOT
+  SGPath path (ApplicationProperties::root);
+  if (sub != NULL) {
+    path.append (sub);
+  }
+  return path;
+}
+
+string ApplicationProperties::root = ".";
+SGPropertyNode_ptr ApplicationProperties::Properties = new SGPropertyNode;