X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ANALYSIS%2FAliAnalysisDataSlot.cxx;h=d859515d381a35f85ca438e8b48687ea9ea1003b;hb=8b52fa41ee1668dea15b9022ae2be5625227ebca;hp=2f39a7acd2e4b74f73f2e56ead35eba9df3b7545;hpb=521adffd7632d08b1abd44daf41be23aabdaef24;p=u%2Fmrichter%2FAliRoot.git

diff --git a/ANALYSIS/AliAnalysisDataSlot.cxx b/ANALYSIS/AliAnalysisDataSlot.cxx
index 2f39a7acd2e..d859515d381 100644
--- a/ANALYSIS/AliAnalysisDataSlot.cxx
+++ b/ANALYSIS/AliAnalysisDataSlot.cxx
@@ -138,6 +138,30 @@ void *AliAnalysisDataSlot::GetBranchAddress(const char *branchname) const
    return br->GetAddress();
 }   
 
+//______________________________________________________________________________
+Int_t AliAnalysisDataSlot::EnableBranch(const char *bname, TTree *tree)
+{
+// Static method to enable recursively a branch in a tree (why this in not in ROOT?)
+   TBranch *branch = tree->GetBranch(bname);
+   Int_t count = 0;
+//   static Int_t indent = 0;
+   if (!branch) return count;
+//   TString s;
+//   for (Int_t i=0; i<indent; i++) s += " ";
+   count++;
+//   printf("%sbranch %s: kDoNotProcess=%d\n",s.Data(), branch->GetName(), branch->TestBit(kDoNotProcess));
+   branch->SetBit(kDoNotProcess, kFALSE);
+   TIter next(branch->GetListOfBranches());
+   TBranch *branch_sub;
+   // Activate all sub-branches
+//   indent++;
+   while ((branch_sub=(TBranch*)next())) {
+      count += AliAnalysisDataSlot::EnableBranch(branch_sub->GetName(), tree);
+   }
+//   indent--;
+   return count;   
+}   
+
 //______________________________________________________________________________
 Bool_t AliAnalysisDataSlot::SetBranchAddress(const char *branchname, void *address)
 {
@@ -148,17 +172,6 @@ Bool_t AliAnalysisDataSlot::SetBranchAddress(const char *branchname, void *addre
       return kFALSE;
    }
    TTree *tree = (TTree*)GetData();
-   // Activate the branch itself
-   tree->SetBranchStatus(branchname,1);
-   TBranch *branch = tree->GetBranch(branchname);
-   if (!branch) return kFALSE;
-   TIter next(branch->GetListOfLeaves());
-   TLeaf *leaf;
-   // Activate all sub-branches
-   while ((leaf=(TLeaf*)next())) {
-      branch = (TBranch*)leaf->GetBranch();
-      tree->SetBranchStatus(branch->GetName(),1);
-   }   
    tree->SetBranchAddress(branchname, address);
    return kTRUE;
 }