Added a function to find a node in the objects

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@9105 383ad7c9-94d9-4d36-a494-682f7c89f535

common/BaseObjectData.cc

@@ -233,6 +233,28 @@ SeparatorNode* BaseObjectData::baseNode() {
   return separatorNode_;
 }
 
+bool BaseObjectData::hasNode(BaseNode* _node) {
+
+  QList< BaseNode* > list;
+  list.push_back(separatorNode_);
+  
+  BaseNode* currentNode;
+  while (!list.empty()) {
+    currentNode = list.front();
+    
+    if ( currentNode->find(_node) == currentNode->childrenEnd() ) {
+      for ( BaseNode::ChildIter child = currentNode->childrenBegin() ; child != currentNode->childrenEnd(); ++child )
+        list.push_back(*child);
+    } else 
+      return true;
+      
+    list.pop_front();
+  }
+  
+  return false;
+  
+}
+
 BaseNode* BaseObjectData::primaryNode() {
   return separatorNode_;
 }

common/BaseObjectData.hh

@@ -188,6 +188,13 @@ class DLLEXPORT BaseObjectData : public BaseObject
      */
     SeparatorNode* baseNode();
 
+    /** \brief Check if the given node is owned by this object
+    *
+    * You can overload this function and return true, if your object generated the given node. 
+    * Don't forget to call this baseclass function on overload!
+    */
+    virtual bool hasNode(BaseNode* _node);
+    
     /** get the primary node of this object (Use this node to change drawModes)
      */
     virtual BaseNode* primaryNode();