Added app callback to Drawable.

2002-07-10 15:35:47 +00:00
parent b3ac26f3dc
commit 27338f57b1
5 changed files with 89 additions and 18 deletions
--- a/src/osg/Drawable.cpp
+++ b/src/osg/Drawable.cpp
@@ -206,3 +206,22 @@ void Drawable::flushDeletedDisplayLists(uint contextID)
        s_deletedDisplayListCache.erase(citr);
    }
 }
+
+void Drawable::setAppCallback(AppCallback* ac)
+{
+    if (_appCallback==ac) return;
+    
+    int delta = 0;
+    if (_appCallback.valid()) --delta;
+    if (ac) ++delta;
+    
+    if (delta!=0)
+    {
+        for(ParentList::iterator itr=_parents.begin();
+            itr!=_parents.end();
+            ++itr)
+        {
+            (*itr)->setNumChildrenRequiringAppTraversal((*itr)->getNumChildrenRequiringAppTraversal()+delta);
+        }
+    }
+}