Initial revision

src/osg/Scene.cpp

@@ -0,0 +1,69 @@
+#include "osg/Scene"
+#include "osg/Registry"
+#include "osg/Input"
+#include "osg/Output"
+
+using namespace osg;
+
+RegisterObjectProxy<Scene> g_SceneProxy;
+
+Scene::Scene()
+{
+    _gstate = NULL;
+}
+
+Scene::~Scene()
+{
+    if (_gstate) _gstate->unref();
+}
+
+void Scene::setGState(osg::GeoState* gstate)
+{
+    if (gstate==_gstate) return;
+
+    if (_gstate) _gstate->unref();
+
+    _gstate = gstate;
+    if (_gstate) _gstate->ref();
+}
+
+bool Scene::readLocalData(Input& fr)
+{
+    bool iteratorAdvanced = false;
+
+    if (fr[0].matchWord("Use"))
+    {
+        if (fr[1].isString()) {
+            GeoState* geostate = dynamic_cast<GeoState*>(fr.getObjectForUniqueID(fr[1].getStr()));
+            if (geostate) {
+                fr+=2;
+                _gstate = geostate;
+                _gstate->ref();
+                iteratorAdvanced = true;
+            }
+        }
+    }
+
+    if (GeoState* readState = static_cast<GeoState*>(GeoState::instance()->readClone(fr)))
+    {
+        _gstate = readState;
+        _gstate->ref();
+        iteratorAdvanced = true;
+    }
+
+    if (Group::readLocalData(fr)) iteratorAdvanced = true;
+
+    return iteratorAdvanced;
+}
+
+bool Scene::writeLocalData(Output& fw)
+{
+    if (_gstate)
+    {
+        _gstate->write(fw);
+    }
+    
+    Group::writeLocalData(fw);
+
+    return true;
+}