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/Go4GUI/TGo4TreeViewerSlots.cxx

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//---------------------------------------------------------------
//        Go4 Release Package v2.10-5 (build 21005) 
//                      03-Nov-2005
//---------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//       Experiment Data Processing at DVEE department, GSI
//---------------------------------------------------------------
//
//Copyright (C) 2000- Gesellschaft f. Schwerionenforschung, GSI
//                    Planckstr. 1, 64291 Darmstadt, Germany
//Contact:            http://go4.gsi.de
//----------------------------------------------------------------
//This software can be used under the license agreements as stated
//in Go4License.txt file which is part of the distribution.
//----------------------------------------------------------------
#include "TGo4TreeViewerSlots.h"
#include "TCut.h"
#include "TTree.h"

#include "qlistview.h"
#include "qtabwidget.h"
#include "TH1.h"

#include "Go4LockGuard/TGo4LockGuard.h"
#include "Go4GUIRegistry/TGo4GUIRegistry.h"
#include "Go4CommandsAnalysis/TGo4ComAddTreeHistogram.h"
#include "Go4QtBaseWidgets/TGo4QTHItem.h"
#include "TGo4DiskFileBrowserSlots.h"
#include "TGo4DiskFileBrowserStatus.h"
#include "TGo4DiskFileBrowser.h"
#include "TGo4RemoteBrowserStatus.h"
#include "TGo4RemoteBrowserSlots.h"
#include "TGo4RemoteBrowser.h"
#include "TGo4BrowserSlots.h"
#include "TGo4Browser.h"
#include "TGo4TreeViewerStatus.h"
#include "TGo4TreeViewer.h"
#include "TGo4MainWindow.h"

TGo4TreeViewerSlots::TGo4TreeViewerSlots(const char * name, const char * title, TGo4TreeViewer * p)
                 :TGo4SlotsBaseClass(name , title), fxTGo4TreeViewer(p)
{
   // TGo4LockGuard Global;
   fxTGo4GUIRegistry = TGo4GUIRegistry::Instance();
   fxTGo4TreeViewerStatus= new TGo4TreeViewerStatus("TGo4TreeViewertatus", "Test Status 1");
   fxTGo4GUIRegistry->RegisterSlotClass(this, fxTGo4TreeViewerStatus, p);
}

void TGo4TreeViewerSlots::TreeDraw(const char *X,const char*Y,const char*Z,const char*Cut, const char *HisName)
{
   TGo4LockGuard Global;
   Int_t drawdim=0;
   TString varexp;
   TString cutexp=Cut;
   TGo4DiskFileBrowserSlots *fxTGo4DiskFileBrowserSlots =
     dynamic_cast<TGo4DiskFileBrowserSlots *> (fxTGo4GUIRegistry->GetSlotClass("TGo4DiskFileBrowserSlots"));

   TGo4DiskFileBrowserStatus *fxTGo4DiskFileBrowserStatus = 0;
   if (fxTGo4DiskFileBrowserSlots!=0)
      fxTGo4DiskFileBrowserStatus = (TGo4DiskFileBrowserStatus *)fxTGo4DiskFileBrowserSlots->GetStatus();

   TGo4BrowserSlots *fxTGo4BrowserSlots =
     dynamic_cast <TGo4BrowserSlots *>(fxTGo4GUIRegistry->GetSlotClass("TGo4BrowserSlots"));

   TGo4Browser *fxTGo4Browser =
     dynamic_cast <TGo4Browser *>(fxTGo4GUIRegistry->GetGUIClass(fxTGo4BrowserSlots));

   TTree *SelectedTree = fxTGo4DiskFileBrowserStatus->GetActiveTree();
   if((fxTGo4DiskFileBrowserSlots==0) || (fxTGo4Browser==0) ||
      (fxTGo4Browser->ListViewLocal==0) || (SelectedTree==0))
         {
            //TString text=TGo4Log::Message(3,"Treeviewer without tree reference, please drop leave icons from browser");
            TGo4MainWindow *MW= dynamic_cast<TGo4MainWindow *>(fxTGo4GUIRegistry->GetMainWindow());
            if(MW) MW->StatusMessage("Treeviewer without tree reference, please drop leave icons from browser");
            return;      
         }
   drawdim=BuildVarExp(X,Y,Z,varexp);
   if(drawdim<=0) return;
   varexp += ">>+";
   varexp += HisName;
   TGo4QTHItem *HisItem = dynamic_cast<TGo4QTHItem*>
     (fxTGo4Browser->ListViewLocal->findItem(HisName,0));
   TH1* histo = HisItem ? dynamic_cast<TH1*> (HisItem->GetWorkObject()) : 0;
   TDirectory* oldhisdir = histo ? histo->GetDirectory() : 0;
   TDirectory* savdir = gDirectory;
   gDirectory = 0;
   TDirectory dummydir("DummyTreeDraw","Dummy directory to call tree draw");
   dummydir.cd();
   if (histo!=0)
     { 
         // check here if target histogram's dimensions match the expression
         if(drawdim!=histo->GetDimension())
            {
               //TString text=TGo4Log::Message(3,"Treedraw dimension mismatch: expression dim=%d, histogram dim=%d",drawdim,histo->GetDimension());
               Text_t buf[256];
               snprintf(buf,255,"Treeviewer: dimension mismatch: expression dim=%d, histogram dim=%d",drawdim,histo->GetDimension());
               TGo4MainWindow *MW= dynamic_cast<TGo4MainWindow *>(fxTGo4GUIRegistry->GetMainWindow());
               if(MW) MW->StatusMessage(buf);               
               dummydir.Clear();
               savdir->cd();
               return;
            }
         histo->SetDirectory(&dummydir);
     }
   SelectedTree->Draw(varexp, cutexp, "goff", 10000000, 0);
   if (histo==0) 
      { // when new histogram created by Tree::Draw
      histo = dynamic_cast<TH1*> (dummydir.FindObject(HisName));
      if(histo) 
         {
            histo->SetDirectory(0);
            fxTGo4BrowserSlots->AddLocalObject(histo);
            delete histo;
            // <-we must delete the original histo here since it is cloned in AddLocalObject!
            // otherwise the original is a leak and treeviewer works only on old!
         }   
      } 
   else 
      {
         histo->SetDirectory(oldhisdir);
      }
   dummydir.Clear();
   savdir->cd();
}

void TGo4TreeViewerSlots::RemoteTreeDraw(const char *tree, const char *X,const char*Y,const char*Z,const char*Cut, const char *HisName)
{
       TString treename=tree;  
       if(treename.IsNull())
         {
            //TString text=TGo4Log::Message(3,"Treeviewer without tree reference, please drop leave icons from browser");
            TGo4MainWindow *MW= dynamic_cast<TGo4MainWindow *>(fxTGo4GUIRegistry->GetMainWindow());
            if(MW) MW->StatusMessage("Treeviewer without tree reference, please drop leave icons from browser");
            return;      
         }
       TString varexp;
       TCut cut=Cut;
       if(BuildVarExp(X,Y,Z,varexp)>0) 
         fxTGo4GUIRegistry->SubmitCommand(new TGo4ComAddTreeHistogram(HisName, treename, varexp, cut));
}
 

Int_t TGo4TreeViewerSlots::BuildVarExp(const char* X ,const char* Y ,const char* Z , TString& varexp)
{
Int_t drawdim=0;   
if(strlen(X)==0)
      { 
         //TString text=TGo4Log::Message(3,"Treedraw without x coordinate expression");
         TGo4MainWindow *MW= dynamic_cast<TGo4MainWindow *>(fxTGo4GUIRegistry->GetMainWindow());
         if(MW) MW->StatusMessage("Treedraw without x coordinate expression");
         drawdim=0; 
      }
   else
      {
         varexp=X;
         if(strlen(Y)==0)
            {
               drawdim=1;
            }
         else
            {
               varexp+=":";
               varexp+=Y;
               if(strlen(Z)==0)
                  {
                     drawdim=2;  
                  }
               else
                  {
                     varexp+=":";
                     varexp+=Z;
                     drawdim=3;                     
                  }//if(strlen(Z)==0)                  
            }//if(strlen(Y)==0)         
      }//if(strlen(X)==0)   
return drawdim;   
   
}
 

void TGo4TreeViewerSlots::SetGUI(TGo4TreeViewer *GUI )
{
   // TGo4LockGuard Global;
      fxTGo4TreeViewer= GUI;
   fxTGo4GUIRegistry->GuiIsChanged(this, GUI);
}

TGo4Status * TGo4TreeViewerSlots::GetStatus()
{
   return fxTGo4TreeViewerStatus;
}
TGo4TreeViewerSlots::~TGo4TreeViewerSlots()
{
   delete fxTGo4TreeViewerStatus;
}




//----------------------------END OF GO4 SOURCE FILE ---------------------

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