selection_sigs.C

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/// \file
/// \ingroup tutorial_eve
/// Test signals from TEveSelection class.
///
/// \macro_code
///
/// \author Matevz Tadel
 
#include "TEveSelection.h" // To enforce auto-loading of libEve.
 
class SigTestSpitter {
   TEveSelection *fSel;
   TString fPrefix;
 
public:
   SigTestSpitter(TEveSelection *sel, const TString &prefix) : fSel(sel), fPrefix(prefix)
   {
      fSel->Connect("SelectionAdded(TEveElement*)", "SigTestSpitter", this, "Added(TEveElement*)");
      fSel->Connect("SelectionRemoved(TEveElement*)", "SigTestSpitter", this, "Removed(TEveElement*)");
      fSel->Connect("SelectionCleared()", "SigTestSpitter", this, "Cleared()");
   }
   ~SigTestSpitter()
   {
      fSel->Disconnect("SelectionAdded(TEveElement*)", this, "Added(TEveElement*)");
      fSel->Disconnect("SelectionRemoved(TEveElement*)", this, "Removed(TEveElement*)");
      fSel->Disconnect("SelectionCleared()", this, "Cleared()");
   }
   // ----------------------------------------------------------------
   void Added(TEveElement *el)
   {
      printf("%s Added 0x%lx '%s'\n", fPrefix.Data(), (ULong_t)el, el ? el->GetElementName() : "");
   }
   void Removed(TEveElement *el)
   {
      printf("%s Removed 0x%lx '%s'\n", fPrefix.Data(), (ULong_t)el, el ? el->GetElementName() : "");
   }
   void Cleared() { printf("%s Cleared'\n", fPrefix.Data()); }
};
 
void selection_sigs()
{
   TEveManager::Create();
 
   new SigTestSpitter(gEve->GetSelection(), "Selection");
   new SigTestSpitter(gEve->GetHighlight(), "Highlight");
}