Fixes for report #71652 BAD_FREE reported by Coverity

[u/mrichter/AliRoot.git] / EVE / EveDet / AliEveListAnalyserEditor.cxx

// Author: Benjamin Hess   29/01/2010

/*************************************************************************
 * Copyright (C) 2009-2010, Alexandru Bercuci, Benjamin Hess.            *
 * All rights reserved.                                                  *
 *************************************************************************/

//////////////////////////////////////////////////////////////////////////
//                                                                      //
// AliEveListAnalyserEditor                                             //
//                                                                      //
// The AliEveListAnalyserEditor provides the graphical func-            //
// tionality for the AliEveListAnalyser. It creates the tabs            //
// and canvases, when they are needed and, as well, frees allocated     //
// memory on destruction (or if new events are loaded and thus some     //
// tabs are closed).                                                    //
// The function DrawHistos() accesses the temporary file created by the //
// AliEveListAnalyser and draws the desired data (the file will         //
// be created within the call of ApplyMacros()). Have a look at this    //
// function to learn more about the structure of the file and how to    //
// access the data.                                                     //
// You can add objects to the list (of analysis objects) "by clicking"! //
// To do this, click the "start" button in the "list" tab. Pressing it, //
// connects the class to signals of objects in the viewer.              //
// You have to kinds of selection:                                      //
//                                                                      //
// Secondary selection:                                                 //
// You can hold "CTRL"+"ALT" (depending on your system, "ALT" alone can //
// also be fine) and click an single object (e.g. a single cluster of a //
// TEvePointSet) in the viewer to add it to the list. If the object is  //
// already in the list, it will be removed from it!                     //
//                                                                      //
// Primary selection:                                                   //
// Just click the object you want to add in the viewer (or as well in   //
// the browser (left panel)). If the object is already in the list, it  //
// will be removed from it!                                             //
//                                                                      //
// For both cases: Note:                                                //
// If you have added all the desired objects, please press the "stop"   //
// button in the "list" tab to disconnect the class from the signals.   //
// If you want to remove an object, you HAVE to use the same procedure  //
// that you have used for adding it. e.g. you cannot(!) remove an       //
// object added by the secondary selection method by using the primary  //
// selection method!                                                    //
//////////////////////////////////////////////////////////////////////////

#include <EveDet/AliEveListAnalyser.h>
#include "AliEveListAnalyserEditor.h"

#include <EveBase/AliEveEventManager.h>
#include <TCanvas.h>     
#include <TEveBrowser.h>
#include <TEveGedEditor.h> 
#include <TEveMacro.h>
#include <TEveManager.h>
#include <TFile.h>
#include <TG3DLine.h>
#include <TGButton.h>
#include <TGButtonGroup.h>
#include <TGComboBox.h>
#include <TGFileDialog.h>
#include <TGLabel.h>
#include <TGListBox.h>
#include <TGMsgBox.h>
#include <TGTab.h>
#include <TGTextEdit.h>
#include <TGTextEntry.h>
#include <TGTextView.h>
#include <TH1.h>
#include <TMap.h>
#include <TObjString.h>
#include <TROOT.h>
#include <TString.h>
#include <TSystem.h>
#include <TTreeStream.h>


ClassImp(AliEveListAnalyserEditor)

///////////////////////////////////////////////////////////
/////////////   AliEveListAnalyserEditor //////////////////
///////////////////////////////////////////////////////////
AliEveListAnalyserEditor::AliEveListAnalyserEditor(const TGWindow* p, Int_t width, Int_t height,
				                   UInt_t options, Pixel_t back) :
  TGedFrame(p, width, height, options, back),
  fM(0),
  fHistoCanvas(0),
  fHistoCanvasName(0),
  fInheritedMacroList(0),
  fInheritSettings(kFALSE),
  fBrowseFrame(0),
  fHistoFrame(0),
  fHistoSubFrame(0),
  fMainFrame(0),
  fObjectFrame(0),  
  //fbAddPrimObjects(0),
  fbApplyMacros(0),
  fbBrowse(0),
  fbDrawHisto(0),
  fbNew(0),
  //fbRemovePrimObjects(0),
  fbRemoveMacros(0),
  fbReset(0),
  fbStart(0),
  fbStop(0),
  fteField(0),
  ftlMacroList(0),
  ftlMacroSelList(0),
  fFileInfo(0),
  fFileTypes(0),
  fLabel1(0), fLabel2(0), fLabel3(0), fLabel4(0),
  fLine1(0), fLine2(0), fLine3(0), fLine4(0),
  fCheckButtons(0)
{
  // Creates the AliEveListAnalyserEditor.

  // Functionality for adding objects
  fObjectFrame = CreateEditorTabSubFrame("List");

/*
  TGLabel* label = new TGLabel(fObjectFrame,"Add objects via primary selection:");
  fObjectFrame->AddFrame(label);

  fbAddPrimObjects = new TGTextButton(fObjectFrame, "Add selected object(s)");
  fObjectFrame->AddFrame(fbAddPrimObjects, new TGLayoutHints(kLHintsLeft | kLHintsExpandX, 4, 1, 3, 1));
  fbAddPrimObjects->SetToolTipText("TODO! - Use primary selection to add \"complete\" objects like tracks, tracklets etc.\nHold the CTRL-key for multiple selection.");
  fbAddPrimObjects->Connect("Clicked()", "AliEveListAnalyserEditor", this, "DoAddPrimSelectedObjects()");

  fbRemovePrimObjects = new TGTextButton(fObjectFrame, "Remove selected object(s)");
  fObjectFrame->AddFrame(fbRemovePrimObjects, new TGLayoutHints(kLHintsLeft | kLHintsExpandX, 4, 1, 3, 1));
  fbRemovePrimObjects->SetToolTipText("TODO! - Hold the CTRL-key for multiple selection");
  fbRemovePrimObjects->Connect("Clicked()", "AliEveListAnalyserEditor", this, "DoRemovePrimSelectedObjects()");

  TGHorizontal3DLine* line = new TGHorizontal3DLine(this, 194, 8);
  fObjectFrame->AddFrame(line, new TGLayoutHints(kLHintsLeft  | kLHintsExpandX, 2, 2, 8, 8));
*/

  TGLabel* label = new TGLabel(fObjectFrame,"Add objects by clicking:");
  fObjectFrame->AddFrame(label);

  fbStart = new TGTextButton(fObjectFrame, "Start");
  fObjectFrame->AddFrame(fbStart, new TGLayoutHints(kLHintsLeft | kLHintsExpandX, 4, 1, 3, 1));
  fbStart->SetToolTipText("Start \"adding objects by clicking\":\n\nPrimary selection: Simply left-click an object in the viewer with your mouse to add it to the list analyser.\nIf you click an object that is already in the list, it will be removed from it.\n\nSecondary selection: Simply hold ALT+CTRL and left-click a single object of a TEvePointSet (e.g. single clusters or a single digit from TEveQuadSet)\nin the viewer with your mouse to add it to the list analyser.\nIf you click (in this way!) an object that is already in the list, it will be removed from it.\nNote: The key combination depends on your operating system and might be different!\n\nAlso note: Remove objects with the same type of selection you added them,\ne.g. you cannot(!) remove a single cluster added via secondary selection\nby using primary selection with this object!");
  fbStart->Connect("Clicked()", "AliEveListAnalyserEditor", this, "DoStartAddingObjects()");

  fbReset = new TGTextButton(fObjectFrame, "Reset");
  fObjectFrame->AddFrame(fbReset, new TGLayoutHints(kLHintsLeft | kLHintsExpandX, 4, 1, 1, 1));
  fbReset->SetToolTipText("Remove all(!) objects from the list");
  fbReset->Connect("Clicked()", "AliEveListAnalyserEditor", this, "DoResetObjectList()");

  fbStop = new TGTextButton(fObjectFrame, "Stop");
  fObjectFrame->AddFrame(fbStop, new TGLayoutHints(kLHintsLeft | kLHintsExpandX, 4, 1, 1, 4));
  fbStop->SetToolTipText("Stop \"adding objects by clicking\"");
  fbStop->Connect("Clicked()", "AliEveListAnalyserEditor", this, "DoStopAddingObjects()");

  // Functionality for adding macros  
  fMainFrame = CreateEditorTabSubFrame("Process");
   
  fLabel1 = new TGLabel(fMainFrame,"Add plugin(s):");
  fMainFrame->AddFrame(fLabel1);
  fBrowseFrame = new TGHorizontalFrame(fMainFrame);

  fteField = new TGTextEntry(fBrowseFrame);
  fteField->SetToolTipText("Enter the pathname of the macro you want to add here and press \"Enter\"");
  fteField->Connect("ReturnPressed()","AliEveListAnalyserEditor", this, "HandleMacroPathSet()"); 
  fBrowseFrame->AddFrame(fteField);
  
  fbBrowse = new TGTextButton(fBrowseFrame, "Browse");
  fbBrowse->SetToolTipText("Browse the macro you want to add");
  fbBrowse->Connect("Clicked()", "AliEveListAnalyserEditor", this, "BrowseMacros()");
  fBrowseFrame->AddFrame(fbBrowse);
  
  fbNew = new TGTextButton(fBrowseFrame, "New");
  fbNew->SetToolTipText("Start macro creation wizard");
  fbNew->Connect("Clicked()", "AliEveListAnalyserEditor", this, "NewMacros()");
  fBrowseFrame->AddFrame(fbNew);
  fMainFrame->AddFrame(fBrowseFrame);

  fLine1 = new TGHorizontal3DLine(fMainFrame, 194, 8);
  fMainFrame->AddFrame(fLine1, new TGLayoutHints(kLHintsLeft  | kLHintsTop, 2, 2, 8, 2));
  fLabel2 = new TGLabel(fMainFrame,"Selection plugins:");
  fMainFrame->AddFrame(fLabel2);

  ftlMacroSelList = new TGListBox(fMainFrame);
  ftlMacroSelList->Resize(194, 94);
  ftlMacroSelList->SetMultipleSelections(kTRUE);
  fMainFrame->AddFrame(ftlMacroSelList);

  fLine2 = new TGHorizontal3DLine(fMainFrame, 194, 8);
  fMainFrame->AddFrame(fLine2, new TGLayoutHints(kLHintsLeft  | kLHintsTop, 2, 2, 8, 2));
  fLabel3 = new TGLabel(fMainFrame,"Process plugins:");
  fMainFrame->AddFrame(fLabel3);

  ftlMacroList = new TGListBox(fMainFrame);
  ftlMacroList->Resize(194, 94);
  ftlMacroList->SetMultipleSelections(kTRUE);
  fMainFrame->AddFrame(ftlMacroList);

  fLine3 = new TGHorizontal3DLine(fMainFrame, 194, 8);
  fMainFrame->AddFrame(fLine3, new TGLayoutHints(kLHintsLeft  | kLHintsTop, 2, 2, 8, 2));  

  fbApplyMacros = new TGTextButton(fMainFrame, "Apply plugin(s)");
  fbApplyMacros->SetToolTipText("Apply all selected macros/class functins to the list of objects -> A data file will be generated");
  fbApplyMacros->Connect("Clicked()", "AliEveListAnalyserEditor", this, "ApplyMacros()");
  fbApplyMacros->SetRightMargin(12);
  fMainFrame->AddFrame(fbApplyMacros);

  fbRemoveMacros = new TGTextButton(fMainFrame, "Remove plugin(s)");
  fbRemoveMacros->SetToolTipText("Remove the selected macros/class functions from the list(s)");
  fbRemoveMacros->Connect("Clicked()", "AliEveListAnalyserEditor", this, "RemoveMacros()");
  fMainFrame->AddFrame(fbRemoveMacros);

  // Stuff for displaying histograms
  fHistoFrame = CreateEditorTabSubFrame("Results");  
  fHistoFrame->SetMapSubwindows(kTRUE);
  fLabel4 = new TGLabel(fHistoFrame,"Data from plugins:");
  fHistoFrame->AddFrame(fLabel4);

  fHistoSubFrame = new TGVerticalFrame(fHistoFrame);
  fHistoSubFrame->SetMapSubwindows(kTRUE);
  fHistoSubFrame->Resize(194, 200);
  fHistoFrame->AddFrame(fHistoSubFrame);

  fLine4 = new TGHorizontal3DLine(fHistoFrame, 194, 8);
  fHistoFrame->AddFrame(fLine4, new TGLayoutHints(kLHintsLeft  | kLHintsTop, 2, 2, 8, 2));  

  fbDrawHisto = new TGTextButton(fHistoFrame, "Draw projections");
  fbDrawHisto->SetToolTipText("Uses the data file created by the last \"Apply selected plugin(s)\".\nClick here to display the data histograms of the selected macros.\nSelect multiple macros to create multi-dimensional plots.\nHisto macros cannot be used for multi-dimensional plots!");
  fbDrawHisto->Connect("Clicked()", "AliEveListAnalyserEditor", this, "DrawHistos()");
  fHistoFrame->AddFrame(fbDrawHisto);

  // Set up file dialog
  fFileInfo = new TGFileInfo();
  fFileInfo->SetMultipleSelection(kTRUE);

  fFileTypes = new Char_t*[6];
  fFileTypes[0] = (Char_t*)"All files"; fFileTypes[1] = (Char_t*)"*";
  fFileTypes[2] = (Char_t*)"ROOT macros"; fFileTypes[3] = (Char_t*)"*.C";
  fFileTypes[4] = 0; fFileTypes[5] = 0;
  fFileInfo->fFileTypes = (const Char_t**)fFileTypes;
  fFileInfo->fFileTypeIdx = 2;
  fFileInfo->fMultipleSelection = kTRUE;

  fHistoCanvasName = new TGString("");

  // Handle the signal "Selected(Int_t ind)"
  ftlMacroList->Connect("Selected(Int_t)", "AliEveListAnalyserEditor", this, "UpdateMacroListSelection(Int_t)");
  ftlMacroSelList->Connect("Selected(Int_t)", "AliEveListAnalyserEditor", this, "UpdateMacroListSelection(Int_t)");

  // Handle the signal "NewEventLoaded"
  AliEveEventManager::GetMaster()->Connect("NewEventLoaded()", "AliEveListAnalyserEditor", this, "HandleNewEventLoaded()");

  // Handle the signal "Selected" (another tab has been selected)
  GetGedEditor()->GetTab()->Connect("Selected(Int_t)", "AliEveListAnalyserEditor", this, "HandleTabChangedToIndex(Int_t)");
}

//______________________________________________________
AliEveListAnalyserEditor::~AliEveListAnalyserEditor()
{
  // Destructor: Closes all tabs created by this object and
  // frees the corresponding memory.

  if (fFileTypes != 0)
  {
    delete [] fFileTypes;
    fFileTypes = 0;
  }

  if (fFileInfo != 0)
  {
    delete fFileInfo; 
    fFileInfo = 0;
  }
  // Close and delete all tabs that have been created by this class
  CloseTabs();

  if (fHistoCanvasName != 0)
  {
    delete fHistoCanvasName;
    fHistoCanvasName = 0;
  }
  
  if (fInheritedMacroList != 0)
  {
    fInheritedMacroList->Delete();
    delete fInheritedMacroList;
    fInheritedMacroList = 0;
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::AddMacro(const Char_t* name, const Char_t* path)
{
  // Adds the macro path/name to the macro list. A warning is provided, if there is
  // something wrong, e.g. if the macro does not have the correct signature.
  Int_t result = fM->AddMacro(path, name);

  switch (result)
  {
  case SUCCESS:
    UpdateMacroList();
    break;
  case WARNING:
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Warning", "Macro is already in list (won't be added again)!",
                 kMBIconExclamation, kMBOk);
    break;
  case ERROR:
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", "Failed to load the macro (check messages in the terminal)!",
                 kMBIconExclamation, kMBOk);
    break;
  case SIGNATURE_ERROR:
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "Macro has not the signature of...\n...a single object selection macro: Bool_t YourMacro(const YourObjectType*)\n...a correlated objects selection macro: Bool_t YourMacro(const YourObjectType*, const YourObjectType2*)\n...a single object analyse macro: void YourMacro(const YourObjectType*, Double_t*&, Int_t&)\n...a correlated objects analyse macro: void YourMacro(const YourObjectType*, const YourObjectType2*, Double_t*&, Int_t&)\n...a single object histo macro: TH1* YourMacro(const YourObjectType*)\n...a correlated objects histo macro: TH1* YourMacro(const YourObjectType*, const YourObjectType2*)", 
                 kMBIconExclamation, kMBOk);
    break;               
  case NOT_EXIST_ERROR:
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "File does not exist or you do not have read permission!", kMBIconExclamation, kMBOk);
    break;
  case UNKNOWN_OBJECT_TYPE_ERROR:
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "Unknown object type of macro parameter!", kMBIconExclamation, kMBOk);
    break;
  default:
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 Form("AliEveListAnalyser::AddMacro exited with unknown return value: %d", result),
                 kMBIconExclamation, kMBOk);
    break;
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::ApplyMacros()
{
  // Applies the selected macros and updates the view.

  Bool_t success = kFALSE;

  // First apply the single object selection macros
  TList* selIterator = new TList();
  ftlMacroSelList->GetSelectedEntries(selIterator);
  fM->ApplySOSelectionMacros(selIterator);
  
  // Update view
  gEve->Redraw3D();

  // Now apply the process macros
  TList* procIterator = new TList();
  ftlMacroList->GetSelectedEntries(procIterator);
  success = fM->ApplyProcessMacros(selIterator, procIterator);

  // Update histogram tab (data has to be reloaded)
  SetModel(fM);
  Update();

  // AliEveListAnalyser::ApplyProcessMacros() automatically selects a macro -> Draw the histogram for it,
  // if a process macro has been applied
  if (success && procIterator->GetEntries() > 0) 
  {
    // Set focus on "Histograms" tab
    GetGedEditor()->GetTab()->SetTab("Results");

    DrawHistos();
  }

  if (selIterator != 0) delete selIterator;
  selIterator = 0;  
  if (procIterator != 0)  delete procIterator;  
  procIterator = 0;  
  
  if (!success)
  {
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "AliEveListAnalyser::ApplyProcessMacros experienced an error (cf. CINT-output)!", 
                 kMBIconExclamation, kMBOk);  
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::BrowseMacros()
{
  // Creates a file-dialog. The selected files will be added to the macro list
  // via AddMacro(...).

  new TGFileDialog(gClient->GetRoot(), GetMainFrame(), kFDOpen, fFileInfo);
  
  if (fFileInfo->fIniDir != 0 && fFileInfo->fFileNamesList != 0)
  {       
    // Extract filenames
    TObject* iter = fFileInfo->fFileNamesList->First();
 
    Char_t* name = 0;

    while (iter != 0)
    {
      // NOTE: fileInfo->fFileNamesList will be changed by that, too!
      name = (Char_t*)strrchr(iter->GetName(), '/');
      // Delete '"' at the end
      name[strlen(name)] = '\0';
              
      AddMacro(name + 1, fFileInfo->fIniDir); 
      iter = (TObjString*)fFileInfo->fFileNamesList->After(iter);
    }
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::CloseTabs()
{
  // Closes + deletes the tabs created by this object

  if (fHistoCanvas != 0)
  {
    // Close the created tab, if it exists
    if (fHistoCanvasName != 0)
    {
      if (gEve->GetBrowser()->GetTab(1)->SetTab(fHistoCanvasName->GetString()))
      {
        // Now the created tab is the current one and can be deleted
        gEve->GetBrowser()->GetTab(1)->RemoveTab();
      }
    }
    // With the tab removal, the canvas will be deleted automatically!
    fHistoCanvas = 0;
  }
}

/*
//______________________________________________________
void AliEveListAnalyserEditor::DoAddPrimSelectedObjects()
{
  // Adds the selected object(s) to the list ("primary selection").

  fM->AddPrimSelectedObjects();
}

//______________________________________________________
void AliEveListAnalyserEditor::DoRemovePrimSelectedObjects()
{
  // Removes the selected object(s) from the list ("primary selection").

  fM->RemovePrimSelectedObjects();
}
*/

//______________________________________________________
void AliEveListAnalyserEditor::DoResetObjectList()
{
  // Removes all objects from the list.

  fM->ResetObjectList();
  Update();
}

//______________________________________________________
void AliEveListAnalyserEditor::DoStartAddingObjects()
{
  // Starts adding objects for the analysis.

  if (fM->StartAddingObjects())
  {
    fbStart->SetState(kButtonDisabled);
    fbStop->SetState(kButtonUp);
  }
  else
  {
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", "Failed to connect socket!", kMBIconExclamation, kMBOk);

    if (fM->GetConnected())
    {
      fbStop->SetState(kButtonDisabled);
      fbStart->SetState(kButtonUp);
    }
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::DoStopAddingObjects()
{
  // Stops adding objects for the analysis.

  if (fM->StopAddingObjects())
  {
    fbStop->SetState(kButtonDisabled);
    fbStart->SetState(kButtonUp);
  }
  else
  {
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", "Failed to disconnect socket!", kMBIconExclamation, kMBOk);
    
    if (fM->GetConnected())
    {
      fbStop->SetState(kButtonUp);
      fbStart->SetState(kButtonDisabled);
    }
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::DrawHistos()
{
  // Accesses the temporary data file created by the last call of ApplyMacros() and draws
  // histograms according to the selection in the "Histograms"-tab.
 
  Int_t nHistograms = GetNSelectedHistograms();
  if (nHistograms <= 0)
  {
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "No data selected. Please select the data you want to plot!", kMBIconExclamation, kMBOk);
    return;
  }
  if (nHistograms > 3)
  {
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), 
                 "Error", "Only histograms with up to 3 dimensions supported. Please select 1,2 or 3 data macros!",
                 kMBIconExclamation, kMBOk);
    return;
  }

  // Check, if a histo macro shall be drawn
  Int_t indexOfHistoMacro = -1;
  Int_t selectedChecked = 0;
  for (Int_t j = 0; j < fM->fDataFromMacroList->GetEntries(); j++)
  {
    if (fCheckButtons[j]->TGButton::GetState() == kButtonDown)
    {
      selectedChecked++;

      // Histo macro? -> To check this, look for the substring "(histo macro)"
      if (strstr(fM->fDataFromMacroList->At(j)->GetName(), "(histo macro)") != 0)
      {
        // Is also another macro selected?
        if (nHistograms > 1)
        {
          // Histo macros cannot(!) be correlated!
          new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                       "Histo macros (return value \"TH1*\") cannot be combined with other macros", 
                       kMBIconExclamation, kMBOk);
          return;        
        }

        // Mark this histo macro for drawing
        indexOfHistoMacro = j;

        // Have all selected macros been checked? -> If yes, we are done with this
        if (selectedChecked == nHistograms)  break;
      }
    }
  }

  TFile* file = new TFile(Form("/tmp/ListAnalyserMacroData_%s.root", gSystem->Getenv("USER")), "READ");
  if (!file)  
  {
    Error("Draw histograms", Form("Cannot open file \"/tmp/ListAnalyserMacroData_%s.root\"", 
                                  gSystem->Getenv("USER")));
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                 Form("Cannot open file \"/tmp/ListAnalyserMacroData_%s.root\"", gSystem->Getenv("USER")),
                 kMBIconExclamation, kMBOk);
    return;
  }
  
  TTree* t = 0;
  TTree* tFriend1 = 0;
  TTree* tFriend2 = 0;

  Int_t indexOfMacro1 = 0;
  Int_t indexOfMacro2 = 0;
  Int_t indexOfMacro3 = 0;

  // Variable for the loop below -> Will be set to aborting value, if a histo macro is drawn
  Int_t i = 0;
  
  // Draw histo macro?
  if (indexOfHistoMacro >= 0)
  {
    if ((t = (TTree*)file->Get(Form("ObjectData%d", indexOfHistoMacro))))
    {
      SetDrawingToHistoCanvasTab();
 
      TH1* myHist = 0;
      t->SetBranchAddress(Form("Macro%d", indexOfHistoMacro), &myHist);
      t->GetEntry(0);
      if (myHist != 0)  myHist->Draw();
      else
      {
        Error("Draw histograms", Form("No histogram for histo macro \"%s\" found!", 
                                      fM->fDataFromMacroList->At(indexOfHistoMacro)->GetName()));
        new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                     Form("No histogram for histo macro \"%s\" found!", 
                          fM->fDataFromMacroList->At(indexOfHistoMacro)->GetName()), kMBIconExclamation, kMBOk);
               
      }

      UpdateHistoCanvasTab();    
    }
    else
    {
      Error("Draw histograms", Form("No data for histo macro \"%s\" found!\nMaybe no objects have been selected.", 
                                    fM->fDataFromMacroList->At(indexOfHistoMacro)->GetName()));
      new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                   Form("No data for histo macro \"%s\" found!\nMaybe no objects have been selected.", 
                        fM->fDataFromMacroList->At(indexOfHistoMacro)->GetName()), kMBIconExclamation, kMBOk);
    }

    // Skip the loop below
    i = fM->fDataFromMacroList->GetEntries();
  }

  // Load the trees in succession and remember the entries -> Plot the analyse macros
  for ( ; i < fM->fDataFromMacroList->GetEntries(); i++)
  {
    if (fCheckButtons[i]->TGButton::GetState() == kButtonDown)
    {
      if (t == 0)
      {
        indexOfMacro1 = i;
        if (!(t = (TTree*)file->Get(Form("ObjectData%d", i))))
        { 
          Error("Draw histograms", Form("No data for macro \"%s\" found!\nMaybe no objects have been selected.", 
                                        fM->fDataFromMacroList->At(i)->GetName()));
          new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                       Form("No data for macro \"%s\" found!\nMaybe no objects have been selected.", 
                            fM->fDataFromMacroList->At(i)->GetName()), kMBIconExclamation, kMBOk);
          break;   
        }

        // 1d histogram
        if (nHistograms == 1) 
        {
          SetDrawingToHistoCanvasTab();
      
          t->Draw(Form("Macro%d", indexOfMacro1), "1");
          ((TH1*)gPad->GetPrimitive("htemp"))->SetTitle(Form("%s;%s",
            fM->fDataFromMacroList->At(indexOfMacro1)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro1)->GetName()));
          UpdateHistoCanvasTab();        

          break;     
        }
      }
      else if (tFriend1 == 0)
      {
        indexOfMacro2 = i;
        if (!(tFriend1 = (TTree*)file->Get(Form("ObjectData%d", i))))
        { 
          Error("Draw histograms", Form("No data for macro \"%s\" found!\nMaybe no objects have been selected.", 
                                        fM->fDataFromMacroList->At(i)->GetName()));
          new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                       Form("No data for macro \"%s\" found!\nMaybe no objects have been selected.", 
                            fM->fDataFromMacroList->At(i)->GetName()),
                            kMBIconExclamation, kMBOk);
          break;   
        }
        
        // 2d histogram
        if (nHistograms == 2) 
        {
          SetDrawingToHistoCanvasTab();

          t->AddFriend(tFriend1);
          t->Draw(Form("Macro%d:Macro%d", indexOfMacro1, indexOfMacro2), "1");
          ((TH1*)gPad->GetPrimitive("htemp"))->SetTitle(Form("%s - %s;%s;%s",
            fM->fDataFromMacroList->At(indexOfMacro2)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro1)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro2)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro1)->GetName()));

          UpdateHistoCanvasTab();
 
          break;     
        }
      }    
      // 3d histogram
      else
      {
        indexOfMacro3 = i;
        if (!(tFriend2 = (TTree*)file->Get(Form("ObjectData%d", i))))
        { 
          Error("Draw histograms", Form("No data for macro \"%s\" found!\nMaybe no objects have been selected.", 
                                        fM->fDataFromMacroList->At(i)->GetName()));
          new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error - Draw histograms", 
                       Form("No data for macro \"%s\" found!\nMaybe no objects have been selected.", 
                            fM->fDataFromMacroList->At(i)->GetName()), kMBIconExclamation, kMBOk);
          break;   
        }

        SetDrawingToHistoCanvasTab();

        t->AddFriend(tFriend1);
        t->AddFriend(tFriend2);
        t->Draw(Form("Macro%d:Macro%d:Macro%d", indexOfMacro1, indexOfMacro2, indexOfMacro3), "1");
        ((TH1*)gPad->GetPrimitive("htemp"))->SetTitle(Form("%s - %s - %s;%s;%s;%s",
            fM->fDataFromMacroList->At(indexOfMacro3)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro2)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro1)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro3)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro2)->GetName(),
            fM->fDataFromMacroList->At(indexOfMacro1)->GetName()));
        
        UpdateHistoCanvasTab();
 
        break;     
      }
    }
  }

  if (t != 0) delete t;
  t = 0;
  if (tFriend1 != 0)  delete tFriend1;
  tFriend1 = 0;
  if (tFriend2 != 0)  delete tFriend2;
  tFriend2 = 0;

  file->Close("R");
  delete file;
  file = 0;
}

//______________________________________________________
Int_t AliEveListAnalyserEditor::GetNSelectedHistograms() const
{
  // Returns the number of selected macros (or rather: of their selected data) in the "Histograms"-tab

  Int_t count = 0;
  
  for (Int_t i = 0; i < fM->fDataFromMacroList->GetEntries(); i++)
  {
    if (fCheckButtons[i]->TGButton::GetState() == kButtonDown)  count++;
  }

  return count;
}

//______________________________________________________
void AliEveListAnalyserEditor::HandleMacroPathSet()
{
  // Takes the input of the text field (adding a macro), checks if the macro can be
  // accessed (and that it exists) and adds the macro to the macro list via AddMacro(...).
  // You can use environment variables in the text field, e.g. "$ALICE_ROOT/Eve/alice-macro/myMacro.C".

  if (strlen(fteField->GetText()) != 0)
  {  
    // Expand the pathname
    Char_t* systemPath = gSystem->ExpandPathName(fteField->GetText());
    fteField->SetText(systemPath);
    delete systemPath;
    systemPath = 0;
       			
    // Check if file exists
    FILE* fp = NULL;

    fp = fopen(fteField->GetText(), "rb");
    if (fp != NULL)
    {
      fclose(fp);

      // Extract filename
      Char_t* name = (Char_t*)strrchr(fteField->GetText(), '/');

      // Current path
      if (name == NULL)
      {
        name = new Char_t[AliEveListAnalyser::fkMaxMacroNameLength];
        memset(name, '\0', sizeof(Char_t) * AliEveListAnalyser::fkMaxMacroNameLength);
        sprintf(name, "%s", fteField->GetText());

        // Add path to textfield -> Path is "./" -> Use length for the name + 2
        Char_t pathname[AliEveListAnalyser::fkMaxMacroNameLength + 2];
        memset(pathname, '\0', sizeof(Char_t) * (AliEveListAnalyser::fkMaxMacroNameLength + 2));
        sprintf(pathname, "./%s", fteField->GetText());
        fteField->SetText(pathname);

        AddMacro(name);  
        if (name != 0)  delete [] name;
        name = 0;
      }
      // Different path
      else
      {
        // Extract path
        Char_t* path = new Char_t[AliEveListAnalyser::fkMaxMacroPathLength];
        memset(path, '\0', sizeof(Char_t) * AliEveListAnalyser::fkMaxMacroPathLength);
        strncpy(path, fteField->GetText(), strlen(fteField->GetText()) - strlen(name));
        
        // Ignore the slash "/" in name
        AddMacro(name + 1, path);  
  
        if (path != 0)  delete [] path;
        path = 0;
      }       
    }
    else
    {
      new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                   "File does not exist or you do not have read permission!", kMBIconExclamation, kMBOk);
    }
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::HandleNewEventLoaded()
{
  // Closes the tabs created by this object and sets a flag that will
  // cause the function SetModel() to inherit the macro lists
  // for the next AliEveListAnalyser from the current one.

  // Inherit the macro list for the next analyse object list!
  fInheritSettings = kTRUE;

  // Close the tabs
  CloseTabs();
}

//______________________________________________________
void AliEveListAnalyserEditor::HandleTabChangedToIndex(Int_t index)
{
  // Saves the current tab in the current AliEveListAnalyser.

  fM->SetSelectedTab(index);
}

//______________________________________________________
void AliEveListAnalyserEditor::InheritMacroList()
{
  // The old macro list is possibly stored in the corresponding interior map. This function will 
  // use this interior map to move the data from the interior map to the newly loaded AliEveListAnalyser. 
  // Then the interior map will be cleaned up. With this, the settings will be inherited from the previously 
  // loaded AliEveListAnalyser.

  if (fInheritedMacroList == 0)  return;

  // Clear list  
  fM->fMacroList->Delete();

  // Store data from interior list in the analyse object list's map
  TMapIter* iter = (TMapIter*)fInheritedMacroList->MakeIterator();
  
  TObject* key = 0;
  TGeneralMacroData* macro = 0;
  
  while ((key = iter->Next()) != 0)
  {
    macro = (TGeneralMacroData*)fInheritedMacroList->GetValue(key);
    if (macro != 0)  fM->fMacroList->Add(new TObjString(key->GetName()), 
                                         new TGeneralMacroData(macro->GetName(), macro->GetPath(), macro->GetType(), 
                                                               macro->GetObjectType(), macro->GetObjectType2()));
    else
    {
      Error("AliEveListAnalyserEditor::InheritMacroList", Form("Failed to inherit the macro \"%s\"!", key->GetName()));
    }
  }
  
  fInheritedMacroList->Delete();
  delete fInheritedMacroList;
  fInheritedMacroList = 0;
}

//______________________________________________________
void AliEveListAnalyserEditor::NewMacros()
{
  // Start the macro creation wizard.
  // thanks to Jacek Otwinowski<J.Otwinowski@GSI.DE> for this suggestion

  AliEveGeneralMacroWizard *wizz = new AliEveGeneralMacroWizard();
  wizz->Connect("Create(Char_t*)", "AliEveListAnalyserEditor", this, "AddMacro(Char_t*)");
}

//______________________________________________________
void AliEveListAnalyserEditor::RemoveMacros()
{
  // Removes the selected macros from the corresponding list.

  TList* iterator = new TList();
  
  ftlMacroList->GetSelectedEntries(iterator);
  fM->RemoveSelectedMacros(iterator);

  if (iterator != 0)  delete iterator;

  iterator = new TList();
  ftlMacroSelList->GetSelectedEntries(iterator);
  fM->RemoveSelectedMacros(iterator);

  // Selected macros are deleted from the list -> No selected entries left
  fM->fMacroListSelected = 0;

  UpdateMacroList();

  if (iterator != 0)  delete iterator;
  iterator = 0;
}

//______________________________________________________
void AliEveListAnalyserEditor::SaveMacroList(TMap* list)
{
  // Saves the provided macro list in an interior list. This list will be used by
  // InheritMacroList() to restore the data in "list". With this method one is able
  // to inherit the macro list from analyse object list to analyse object list (i.e. from event to event).

  if (fInheritedMacroList != 0)
  {
    fInheritedMacroList->Delete();
    delete fInheritedMacroList;
  }
  fInheritedMacroList = new TMap();
  fInheritedMacroList->SetOwnerKeyValue(kTRUE, kTRUE);

  TMapIter* iter = (TMapIter*)list->MakeIterator();
  TObject* key = 0;
  TGeneralMacroData* macro = 0;
  
  while ((key = iter->Next()) != 0)
  {
    macro = (TGeneralMacroData*)fM->fMacroList->GetValue(key);
    if (macro != 0) fInheritedMacroList->Add(new TObjString(key->GetName()), 
                                             new TGeneralMacroData(macro->GetName(), macro->GetPath(), macro->GetType(), 
                                                                   macro->GetObjectType(), macro->GetObjectType2()));
    else
    {
      Error("AliEveListAnalyserEditor::SaveMacroList", Form("Failed to inherit the macro \"%s\"!", key->GetName()));
    }
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::SetDrawingToHistoCanvasTab()
{
  // Sets gPad to the tab with the name of the current AliEveListAnalyser. If this tab does
  // not exist, it will be created. Otherwise, it is re-used.

  // If the tab with the canvas has been closed, the canvas will be deleted.
  // So, if there is no tab, set the canvas pointer to zero and recreate it in a new tab.
  if (fHistoCanvas != 0) 
  {
    if (gEve->GetBrowser()->GetTab(1)->SetTab(fHistoCanvasName->GetString()) == 0)
    {
      fHistoCanvas = 0;
    }
  }

  if (!fHistoCanvas)
  {
    fHistoCanvas = gEve->AddCanvasTab(fM->GetName());     
  }
                           
  gPad = fHistoCanvas;
}

//______________________________________________________
void AliEveListAnalyserEditor::SetModel(TObject* obj)
{  
  // Sets the model object, updates the related data in the GUI and
  // inherits settings (cf. Inherit*(...)), if the flag fInheritSettings is set to kTRUE.

  fM = dynamic_cast<AliEveListAnalyser*>(obj);

  if (fM == 0) 
  {
    Error("SetModel", "Parameter is zero pointer");
    return;
  }

  // Provide a pointer to this editor
  fM->fEditor = this;

  // If macro list + track style shall be inherited from previously loaded track list, do so
  if (fInheritSettings)
  {
    InheritMacroList();

    fInheritSettings = kFALSE;
  }

  UpdateMacroList();
  UpdateHistoList(); 

  // View correct tab
  GetGedEditor()->GetTab()->SetTab(fM->GetSelectedTab()); 

  // Set connection buttons correctly
  if(fM->GetConnected())
  {
    fbStart->SetState(kButtonDisabled);
    fbStop->SetState(kButtonUp);
  }
  else
  {
    fbStop->SetState(kButtonDisabled);
    fbStart->SetState(kButtonEngaged);
    fbStart->SetState(kButtonUp);
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::UpdateDataFromMacroListSelection()
{
  // Saves the current selection in the "Histograms"-tab to the current
  // AliEveListAnalyser. This means that the selection is updated and won't
  // get lost, if another editor is loaded in Eve.

  for (Int_t i = 0; i < fM->fDataFromMacroList->GetEntries(); i++)
  {
    fM->SetHistoDataSelection(i, fCheckButtons[i]->IsOn());
  }
}

//______________________________________________________
void AliEveListAnalyserEditor::UpdateHistoCanvasTab()
{
  // Updates the histogram and the corresponding tab (including titles).

  // Update name of the tab (tab has been set to current tab!)
  fHistoCanvasName->SetString(fM->GetName());  

  // Use a copy of fHistoCanvasName!! -> If the user closes a tab manually, the TGString
  // will be deleted -> Error might occur, when accessing the pointer   
  gEve->GetBrowser()->GetTab(1)->GetCurrentTab()->SetText(new TGString(fHistoCanvasName));

  // Switch tabs to force redrawing
  gEve->GetBrowser()->GetTab(1)->SetTab(0);
  gEve->GetBrowser()->GetTab(1)->SetTab(fHistoCanvasName->GetString());
  fHistoCanvas->Update();
}

//______________________________________________________
void AliEveListAnalyserEditor::UpdateHistoList()
{
  // Reloads (updates) the buttons in the "Histograms"-tab via
  // the current AliEveListAnalyser (data).

  fHistoSubFrame->TGCompositeFrame::Cleanup();
  
  // Set buttons for histograms
  if (fCheckButtons != 0) delete fCheckButtons;
  fCheckButtons = new TGCheckButton*[fM->fDataFromMacroList->GetEntries()];
  
  TObjString* iter = (TObjString*)fM->fDataFromMacroList->First();
  for (Int_t i = 0; i < fM->fDataFromMacroList->GetEntries() && iter != 0; i++)
  {
    fCheckButtons[i] = new TGCheckButton(fHistoSubFrame, iter->GetName());
    fHistoSubFrame->AddFrame(fCheckButtons[i]);
    
    fCheckButtons[i]->SetState(kButtonUp, kFALSE);
    fCheckButtons[i]->MapRaised();
    fCheckButtons[i]->SetOn(fM->HistoDataIsSelected(i));
    fCheckButtons[i]->Connect("Clicked()", "AliEveListAnalyserEditor", this, "UpdateDataFromMacroListSelection()");
            
    iter = (TObjString*)fM->fDataFromMacroList->After(iter);
  }  
}

//______________________________________________________
void AliEveListAnalyserEditor::UpdateMacroList()
{
  // Reloads (updates) the macro list (selection AND process macros) via
  // the current AliEveListAnalyser (data).

  ftlMacroList->RemoveAll();
  ftlMacroSelList->RemoveAll();
   
  TMapIter* iter = (TMapIter*)fM->fMacroList->MakeIterator();
  TObject* key = 0;
  TGeneralMacroData* macro = 0;

  Int_t ind = 0;
  while ((key = iter->Next()) != 0)
  {
    macro = (TGeneralMacroData*)fM->fMacroList->GetValue(key);
    if (macro != 0)
    {
      if (macro->IsProcessMacro())
      {
        ftlMacroList->AddEntry(macro->GetName(), ind);
        // Select, what has been selected before
        ftlMacroList->Select(ind, fM->MacroListIsSelected(ind));
        ind++;
      }
      else if (macro->IsSelectionMacro())
      {
        ftlMacroSelList->AddEntry(macro->GetName(), ind);
        // Select, what has been selected before
        ftlMacroSelList->Select(ind, fM->MacroListIsSelected(ind));
        ind++;
      }
      else
      {
        Error("AliEveListAnalyserEditor::UpdateMacroList()", 
              Form("Macro \"%s/%s.C\" is neither a selection macro nor a process macro!",
                   macro->GetPath(), macro->GetName()));                                        
      }
    }
    else
    {
      Error("AliEveListAnalyserEditor::UpdateMacroList()", 
              Form("Macro list is corrupted: Macro \"%s\" not found!", key->GetName()));            
    }     
  }

  ftlMacroList->SortByName(); 
  ftlMacroSelList->SortByName(); 
}

//______________________________________________________
void AliEveListAnalyserEditor::UpdateMacroListSelection(Int_t ind)
{
  // Saves the current selection in the macro listS to the current
  // AliEveListAnalyser. This means that the selection is updated and won't
  // get lost, if another editor is loaded in Eve.
  // NOTE: The indices in BOTH lists will be unique!

  // Toggle selected item
  fM->SetMacroListSelection(ind, !fM->MacroListIsSelected(ind));
}


//______________________________________________________
//______________________________________________________
//______________________________________________________


/////////////////////////////////////////////////
ClassImp(AliEveGeneralMacroWizard)
/////////////////////////////////////////////////

//______________________________________________________
AliEveGeneralMacroWizard::AliEveGeneralMacroWizard(const TGWindow* p)
  :TGMainFrame(p ? p : gClient->GetRoot(), 10, 10, kMainFrame | kVerticalFrame)
  ,fbCancel(0x0)
  ,fbCreate(0x0)
  ,fCombo(0x0)
  ,fTextEdit(0x0)
  ,fTextIncludes(0x0)
  ,fTextName(0x0)  
  ,fTextObjectType(0x0)
  ,fTextObjectType2(0x0)
{
  // Creates the macro wizard.

  const Int_t width = 300;

  // horizontal frame
  TGHorizontalFrame *fFrameName = new TGHorizontalFrame(this, 10, 10, kHorizontalFrame);
  TGLabel *fLabel = new TGLabel(fFrameName, "Name*");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameName->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  fTextName = new TGTextEntry(fFrameName);
  fTextName->SetMaxLength(255);
  fTextName->SetAlignment(kTextLeft);
  fTextName->SetText("");
  fTextName->SetToolTipText("The name of your macro");
  fTextName->Resize(width, fTextName->GetDefaultHeight());
  fFrameName->AddFrame(fTextName, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2));

  // horizontal frame
  TGHorizontalFrame *fFrameObjectType = new TGHorizontalFrame(this, 10, 10, kHorizontalFrame);
  fLabel = new TGLabel(fFrameObjectType, "1st object type of macro");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameObjectType->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  fTextObjectType = new TGTextEntry(fFrameObjectType);
  fTextObjectType->SetAlignment(kTextLeft);
  fTextObjectType->SetText("");
  // Limit max.length to 80 characters
  fTextObjectType->SetMaxLength(80);
  fTextObjectType->SetToolTipText("The type of objects, your macro will work with (type of the first pointer)");
  fTextObjectType->Resize(width, fTextObjectType->GetDefaultHeight());
  fFrameObjectType->AddFrame(fTextObjectType, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2));

   // horizontal frame
  TGHorizontalFrame *fFrameObjectType2 = new TGHorizontalFrame(this, 10, 10, kHorizontalFrame);
  fLabel = new TGLabel(fFrameObjectType2, "2nd object type of macro (pair");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameObjectType2->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  fTextObjectType2 = new TGTextEntry(fFrameObjectType2);
  fTextObjectType2->SetAlignment(kTextLeft);
  fTextObjectType2->SetText("");
  // Limit max.length to 80 characters
  fTextObjectType2->SetMaxLength(80);
  fTextObjectType2->SetToolTipText("The type of objects, your macro will work with (type of the second pointer)\nOnly needed for macros dealing with object pairs");
  fTextObjectType2->Resize(width, fTextObjectType2->GetDefaultHeight());
  fFrameObjectType2->AddFrame(fTextObjectType2, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2));
  fTextObjectType2->SetEnabled(kFALSE);

  // horizontal frame
  TGHorizontalFrame *fFrameIncludes = new TGHorizontalFrame(this,10,10,kHorizontalFrame);
  fLabel = new TGLabel(fFrameIncludes, "Include files");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameIncludes->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  fTextIncludes = new TGTextEntry(fFrameIncludes);
  fTextObjectType->SetAlignment(kTextLeft);
  fTextIncludes->SetText("<TRD/AliTRDgeometry.h>,<TRD/AliTRDcluster.h>,<TRD/AliTRDseedV1.h>,<TRD/AliTRDtrackV1.h>");
  fTextIncludes->SetCursorPosition(0);
  fTextIncludes->SetToolTipText("The include files for your macro - separated by commas! -\n e.g. \"<TRD/AliTRDcluster.h>,<TRD/AliTRDtrackV1.h>\".\nThe suggested/default files can be used for track analysis");
  fTextIncludes->Resize(width, fTextIncludes->GetDefaultHeight());
  fFrameIncludes->AddFrame(fTextIncludes, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2));

  // horizontal frame
  TGHorizontalFrame *fFrameComment = new TGHorizontalFrame(this,10,10,kHorizontalFrame);
  fLabel = new TGLabel(fFrameComment, "Comment");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameComment->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  fTextEdit = new TGTextEdit(fFrameComment, width, 5*fTextName->GetDefaultHeight());
  fFrameComment->AddFrame(fTextEdit, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2));

  // horizontal frame
  TGHorizontalFrame *fFrameType = new TGHorizontalFrame(this,10,10,kHorizontalFrame);
  fLabel = new TGLabel(fFrameType, "Type*");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameType->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  fCombo = new TGComboBox(fFrameType, -1, kHorizontalFrame | kSunkenFrame | kDoubleBorder | kOwnBackground);
  fCombo->AddEntry("Single Object Selection", AliEveListAnalyser::kSingleObjectSelect);
  fCombo->AddEntry("Pair Objects Selection", AliEveListAnalyser::kCorrelObjectSelect);
  fCombo->AddEntry("Single Object Analyse", AliEveListAnalyser::kSingleObjectAnalyse);
  fCombo->AddEntry("Single Object Histo", AliEveListAnalyser::kSingleObjectHisto);
  fCombo->AddEntry("Pair Objects Analyse", AliEveListAnalyser::kCorrelObjectAnalyse);
  fCombo->AddEntry("Pair Objects Histo", AliEveListAnalyser::kCorrelObjectHisto);
  fCombo->Select(-1);
  fCombo->Resize(width, fTextName->GetDefaultHeight());
  fFrameType->AddFrame(fCombo, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2));

  // horizontal frame
  TGHorizontalFrame *fFrameAction = new TGHorizontalFrame(this,10,10,kHorizontalFrame);
  fbCancel = new TGTextButton(fFrameAction, "Cancel");
  fbCancel->SetToolTipText("Exit macro creation wizard");
  fFrameAction->AddFrame(fbCancel, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2)); 
  fbCreate = new TGTextButton(fFrameAction, "Done");
  fbCreate->SetToolTipText("Use settings to create the macro");
  fFrameAction->AddFrame(fbCreate, new TGLayoutHints(kLHintsRight | kLHintsTop,2,2,2,2)); 

  // horizontal frame
  TGHorizontalFrame *fFrameText = new TGHorizontalFrame(this,10,10,kHorizontalFrame);
  fLabel = new TGLabel(fFrameText, "(*) Mandatory fields");
  fLabel->SetTextJustify(36);
  fLabel->SetMargins(0,0,0,0);
  fLabel->SetWrapLength(-1);
  fFrameText->AddFrame(fLabel, new TGLayoutHints(kLHintsLeft | kLHintsTop,2,2,2,2));

  // put things together  
  AddFrame(fFrameName, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameObjectType, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameObjectType2, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameIncludes, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameComment, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameType, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameAction, new TGLayoutHints(kLHintsRight | kLHintsTop | kLHintsExpandX,2,2,2,2));

  TGHorizontal3DLine *fLine = new TGHorizontal3DLine(this, 281, 2);
  AddFrame(fLine, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
  AddFrame(fFrameText, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));


  SetWindowName("Macro Wizard");
  SetMWMHints(kMWMDecorAll,
              kMWMFuncAll,
              kMWMInputModeless);
  MapSubwindows();

  Resize(GetDefaultSize());
  MapWindow();

  // Do the linking
  fCombo->Connect("Selected(Int_t)", "AliEveGeneralMacroWizard", this, "HandleSelectionChanged(Int_t)");
  fbCreate->Connect("Clicked()", "AliEveGeneralMacroWizard", this, "HandleCreate()");
  fbCancel->Connect("Clicked()", "AliEveGeneralMacroWizard", this, "CloseWindow()");

  // Standard choice
  fCombo->Select(1, kFALSE);
}  

const Char_t *fGeneralIncludes = 
"#if !defined(__CINT__) || defined(__MAKECINT__)\n"
"#include <TROOT.h>\n"
"#include <TH1.h>\n";

const Char_t *fGeneralMacroTemplate[7] = {
""
,"  if (!object) return kFALSE;\n"

,"  n = 0;\n"
"  r = 0x0;\n"
"  if (!object) return;\n"

,"  if (!object) return 0x0;\n\n"
"// Set bins, xmin and xmax here - you can also use a different histogram type (but must inherit from TH1)\n"
"  Int_t n = 1;\n"
"  Double_t xmin = 0;\n"
"  Double_t xmax = 100;\n\n" 
"  TH1S* h = new TH1S(\"h\", \"Your title\", n, xmin, xmax);\n"
"  h->GetXaxis()->SetTitle("");\n"
"  h->GetYaxis()->SetTitle("");\n"

,"  if (!object) return kFALSE;\n"
"  if (!object2) return kFALSE;\n"

,"  n = 0;\n"
"  r = 0x0;\n"
"  if (!object) return;\n"
"  if (!object2) return;\n"

,"  if (!object) return 0x0;\n"
"  if (!object2) return 0x0;\n\n"
"// Set bins, xmin and xmax here - you can also use a different histogram type (but must inherit from TH1)\n"
"  Int_t n = 1;\n"
"  Double_t xmin = 0;\n"
"  Double_t xmax = 100;\n\n"
"  TH1S* h = new TH1S(\"h\", \"Your title\", n, xmin, xmax);\n"
"  h->GetXaxis()->SetTitle("");\n"
"  h->GetYaxis()->SetTitle("");\n"
};

//______________________________________________________
void AliEveGeneralMacroWizard::Create(Int_t type)
{
  // Creates the macro with the selected type (combo box).

  const Char_t* name = fTextName->GetText();
  if(strcmp(name,"") == 0)
  {
    Error("AliEveGeneralMacroWizard::Create", "Please specify a name for your macro.");
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "Please specify a name for your macro.", kMBIconExclamation, kMBOk);
    return;
  }

  Bool_t useGivenType = kFALSE;
  Bool_t useGivenType2 = kFALSE;

  // Remove white-spaces
  TString* typeStr = new TString();

  typeStr->Append(fTextObjectType->GetText());
  typeStr->ReplaceAll(" ", "");
  fTextObjectType->SetText(typeStr->Data(), kFALSE);

  TString* typeStr2 = new TString();

  typeStr2->Append(fTextObjectType2->GetText());
  typeStr2->ReplaceAll(" ", "");
  fTextObjectType2->SetText(typeStr2->Data(), kFALSE);

  // If an object type is provided by the user, use it!
  if (strlen(typeStr->Data()) > 0)
  {
    // Check, if the class really exists
    if (TClass::GetClass(typeStr->Data()) != 0x0)
    {
      useGivenType = kTRUE; 
    }
    else
    {
      Int_t buttonsPressed = 0;
      new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Unknown object type", 
        Form("The class of your 1st object, \"%s\" has not been found. Do you really want to create your macro with this object type?", 
             typeStr->Data()), kMBIconExclamation, kMBYes | kMBNo, &buttonsPressed);

      if (buttonsPressed & kMBYes)  useGivenType = kTRUE;
      else useGivenType = kFALSE;

      // Cancel creation
      if (!useGivenType)
      {
        if (typeStr != 0)
        {
          typeStr->Clear();
          delete typeStr;
        }
        typeStr = 0;

        if (typeStr2 != 0)
        {
          typeStr2->Clear();
          delete typeStr2;
        }
        typeStr2 = 0;

        return;
      }
    }
  }

  // If an object type is provided by the user, use it!
  if (strlen(typeStr2->Data()) > 0)
  {
    // Check, if the class really exists
    if (TClass::GetClass(typeStr2->Data()) != 0x0)
    {
      useGivenType2 = kTRUE; 
    }
    else
    {
      Int_t buttonsPressed = 0;
      new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Unknown object type", 
        Form("The class of your 2nd object, \"%s\" has not been found. Do you really want to create your macro with this object type?", 
             typeStr2->Data()), kMBIconExclamation, kMBYes | kMBNo, &buttonsPressed);

      if (buttonsPressed & kMBYes)  useGivenType2 = kTRUE;
      else useGivenType2 = kFALSE;

      // Cancel creation
      if (!useGivenType2)
      {
        if (typeStr != 0)
        {
          typeStr->Clear();
          delete typeStr;
        }
        typeStr = 0;

        if (typeStr2 != 0)
        {
          typeStr2->Clear();
          delete typeStr2;
        }
        typeStr2 = 0;

        return;
      }
    }
  }

  // Note: gSystem->AccessPathName(...) returns kTRUE, if the access FAILED!
  if(!gSystem->AccessPathName(Form("./%s.C", name)))
  {
    // If there is already a file with this name -> Error
    Error("AliEveGeneralMacroWizard::Create", Form("A macro \"%s.C\" already exists in the current directory!\nPlease choose another name!", name));
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 Form("A macro \"%s.C\" already exists in the current directory!\nPlease choose another name!", name), kMBIconExclamation, kMBOk);
    return;
  }

  FILE* fp = 0x0;
  if(!(fp = fopen(Form("%s.C", name), "wt"))){
    Error("AliEveGeneralMacroWizard::Create", "Couldn't create macro file.");
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 "Couldn't create macro file.", kMBIconExclamation, kMBOk);
    return;
  }

  TGText* comment = fTextEdit->GetText();
  Char_t* line = 0x0; Int_t iline = 0;
  while((line = comment->GetLine(TGLongPosition(0,iline++), 200))) fprintf(fp, "// %s\n", line);

  TString* tempStr = new TString();

  // Add include files:
  // Remove white-spaces and replace commas
  tempStr->Append(fTextIncludes->GetText());  
  tempStr->ReplaceAll(" ", "");
  tempStr->ReplaceAll(",","\n#include ");
  // If there are files, add the first "#include " in front
  if (tempStr->Length() > 3)  tempStr->Prepend("#include "); 

  fprintf(fp, "\n%s%s\n#endif\n\n", fGeneralIncludes, tempStr->Data());
  
  tempStr->Clear();

  // Use default type
  if (!useGivenType)
  {
    typeStr->Clear();
    typeStr->Append("TObject");
  }
  if (!useGivenType2)
  {
    typeStr2->Clear();
    typeStr2->Append("TObject");
  }

  switch(type){
  case AliEveListAnalyser::kSingleObjectSelect:
    // Use "Bool_t 'NAME'(const 'OBJECTTYPE' *object)\n"
    tempStr->Append("Bool_t ").Append(name).Append("(const ").Append(typeStr->Data()).Append(" *object)\n");
    fprintf(fp, tempStr->Data());
    break;
  case AliEveListAnalyser::kCorrelObjectSelect:
    // Use "Bool_t 'NAME'(const 'OBJECTTYPE' *object, const 'OBJECTTYPE2' *object2)\n"
    tempStr->Append("Bool_t ").Append(name).Append("(const ").Append(typeStr->Data()).Append(" *object, const ").Append(typeStr2->Data()).Append(" *object2)\n");
    fprintf(fp, tempStr->Data());
    break;
  case AliEveListAnalyser::kSingleObjectAnalyse:    
    // Use "void 'NAME'(const 'OBJECTTYPE' *object, Double_t*& r, Int_t& n)\n"
    tempStr->Append("void ").Append(name).Append("(const ").Append(typeStr->Data()).Append(" *object, Double_t*& r, Int_t& n)\n");
    fprintf(fp, tempStr->Data());
    break;
  case AliEveListAnalyser::kSingleObjectHisto:
    // Use "TH1* 'NAME'(const 'OBJECTTYPE' *object)\n"
    tempStr->Append("TH1* ").Append(name).Append("(const ").Append(typeStr->Data()).Append(" *object)\n");
    fprintf(fp, tempStr->Data());
    break;
  case AliEveListAnalyser::kCorrelObjectAnalyse:
    // Use "void 'NAME'(const 'OBJECTTYPE' *object, const 'OBJECTTYPE2' *object2, Double_t*& r, Int_t& n)\n"
    tempStr->Append("void ").Append(name).Append("(const ").Append(typeStr->Data()).Append(" *object, const ").Append(typeStr2->Data()).Append(" *object2, Double_t*& r, Int_t& n)\n");
    fprintf(fp, tempStr->Data());
    break;
  case AliEveListAnalyser::kCorrelObjectHisto:
    // Use "TH1* 'NAME'(const 'OBJECTTYPE' *object, const 'OBJECTTYPE2' *object2)\n"
    tempStr->Append("TH1* ").Append(name).Append("(const ").Append(typeStr->Data()).Append(" *object, const ").Append(typeStr2->Data()).Append(" *object2)\n");
    fprintf(fp, tempStr->Data());
    break;
  default:
    Error("AliEveGeneralMacroWizard::Create", Form("Unknown type[%d]", type));
    new TGMsgBox(gClient->GetRoot(), GetMainFrame(), "Error", 
                 Form("Unknown type[%d]", type), kMBIconExclamation, kMBOk);
    fclose(fp);
    gSystem->Exec(Form("rm -f %s.C", name));

    tempStr->Clear();
    if (tempStr != 0) delete tempStr;
    tempStr = 0;

    typeStr->Clear();
    if (typeStr != 0) delete typeStr;
    typeStr = 0;

    return;
  }

  tempStr->Clear();
  if (tempStr != 0) delete tempStr;
  tempStr = 0;

  typeStr->Clear();
  if (typeStr != 0) delete typeStr;
  typeStr = 0;

  typeStr2->Clear();
  if (typeStr2 != 0) delete typeStr2;
  typeStr2 = 0;

  fprintf(fp, "{\n%s\n", fGeneralMacroTemplate[type]);

  // Add some further information for analyse macros
  if (type == AliEveListAnalyser::kSingleObjectAnalyse || type == AliEveListAnalyser::kCorrelObjectAnalyse)
  {
    fprintf(fp, "// add your own code here\n// Please allocate memory for your results, e.g. by doing:\n// n = YourNumberOfResults;\n// r = new Double_t[YourNumberOfResults];\n\n}\n");
  }
  else
  {
    fprintf(fp, "// add your own code here\n\n\n}\n");
  }
  
  fclose(fp);

  Emit("Create(Int_t)", type);
  Create((Char_t*)name);
  CloseWindow();
}

//______________________________________________________
void AliEveGeneralMacroWizard::Create(Char_t *name)
{
  // Emits the creation signal.

  Emit("Create(Char_t*)", Form("%s.C", name));
}

//______________________________________________________
void AliEveGeneralMacroWizard::HandleCreate()
{
  // Handles the signal, when the creation button is pressed.

  Create(fCombo->GetSelected());
}

//______________________________________________________
void AliEveGeneralMacroWizard::HandleSelectionChanged(Int_t sel)
{
  // Handles the change of the selected macro type.

  switch (sel)
  {
case AliEveListAnalyser::kCorrelObjectSelect:
case AliEveListAnalyser::kCorrelObjectAnalyse:
case AliEveListAnalyser::kCorrelObjectHisto:
    // Enable 2nd object type
    fTextObjectType2->SetEnabled(kTRUE);
  break;
default:
    // Disable 2nd object type
    fTextObjectType2->SetEnabled(kFALSE);
  break;
  }
}