// @(#)root/star:$Name:  $Id: TGenericTable.cxx,v 1.1 2001/07/11 06:46:19 brun Exp $

// Author: Valery Fine(fine@bnl.gov)   30/06/2001

// Copyright(c) 2001 [BNL] Brookhaven National Laboratory, Valeri Fine  (fine@bnl.gov). All right reserved",

 
#include "TGenericTable.h"

//////////////////////////////////////////////////////////////////////////

//                                                                      //

//  TGenericTable                                                       //

//                                                                      //

//  This is the class to represent the array of C-struct                //

//  defined at run-time                                                 //

//                                                                      //

//   Example: see $ROOTSYS/star/demo/staff.C                            //

//   -------                                                            //

// !{

// !//   example of macro to read data from an ascii file and

// !//   create a root file with an histogram and an ntuple.

// !//   A'la the famous ROOT/PAW staff data example 

// !//   ( see PAW - Long write up, CERN, page33. )

// !

// !   gROOT->Reset();

// !   gSystem->Load("libStar");

// !

// !   struct staff_t {

// !                Int_t cat;

// !                Int_t division;

// !                Int_t flag;

// !                Int_t age;

// !                Int_t service;

// !                Int_t children;

// !                Int_t grade;

// !                Int_t step;

// !                Int_t nation;

// !                Int_t hrweek;

// !                Int_t cost;

// !    };

// !

// !   staff_t staff;

// !

// !   // open ASCII data file

// !   FILE *fp = fopen("staff.dat","r");

// !

// !   char line[81];

// !

// !   // Create the generic table for 1000 rows (it may grow then)

// !   TGenericTable *allStaff = new TGenericTable("staff_t","Staff-data",1000);

// !

// !   // Fill the memory resident table 

// !   while (fgets(&line,80,fp)) {

// !      sscanf(&line[0] ,"%d%d%d%d", &staff.cat,&staff.division,&staff.flag,&staff.age);

// !      sscanf(&line[13],"%d%d%d%d", &staff.service,&staff.children,&staff.grade,&staff.step);

// !      sscanf(&line[24],"%d%d%d",   &staff.nation,&staff.hrweek,&staff.cost);

// !      allStaff->AddAt(&staff);

// !   }

// !   fclose(fp);

// !   // Delete unused space;

// !   allStaff->Purge();

// !

// !   allStaff->Print(0,10);

// !

// !//  Create ROOT file

// !   TFile *f = new TFile("aptuple.root","RECREATE");

// !          allStaff->Write();

// !   f->Write();

// !

// !   // We should close  TFile otherwise all histograms we create below

// !   // may be written to the file too occasionaly

// !   f->Close();

// !

// !//  Create ROOT Browser

// !   new TBrowser("staff",allStaff);

// !

// !//  Create couple of the histograms

// !   TCanvas *canva = new TCanvas("Staff","CERN Population",600,600);

// !   canva->Divide(1,2);

// !

// !

// !// one can use 2 meta variable: 

// !//  n$ - the total number of the rows in the table

// !//  i$ - stands for the current row index i = [0 -> (n$-1)]

// !

// !   gStyle->SetHistFillColor(10);

// !   gStyle->SetHistFillStyle(3013);

// !   canva->cd(1);

// !   allStaff->Draw("age");

// !   canva->Update();

// !   canva->cd(2);

// !   allStaff->Draw("cost");

// !   canva->Update();

// !}

//

//////////////////////////////////////////////////////////////////////////


  ClassImp(TGenericTable) 
  TableClassStreamerImp(TGenericTable)

// Create TGenericTable by TTableDescriptor pointer

//______________________________________________________________________________

 TGenericTable::TGenericTable(const TTableDescriptor &dsc, const Text_t *name) : TTable(name,dsc.Sizeof()),fColDescriptors(0) 
{ 
  ///////////////////////////////////////////////////////////

  //

  //   Create TGenericTable by TTableDescriptor pointer:

  //

  //   dsc   - Pointer to the table descriptor

  //   name  - The name of this object

  //

  ///////////////////////////////////////////////////////////


  // Create a provate copy of the descriptor provided;

   SetDescriptorPointer(new TTableDescriptor(dsc));
   SetGenericType();
}     
//______________________________________________________________________________

 TGenericTable::TGenericTable(const TTableDescriptor &dsc, Int_t n) : TTable("TGenericTable",n,dsc.Sizeof()),fColDescriptors(0)  
{
  ///////////////////////////////////////////////////////////

  //

  //   Create TGenericTable by TTableDescriptor pointer:

  //

  //   dsc   - Pointer to the table descriptor

  //   name  - "TGenericTable"

  //   n     - The initial number of allocated rows

  //

  ///////////////////////////////////////////////////////////


  // Create a provate copy of the descriptor provided;

   SetDescriptorPointer(new TTableDescriptor(dsc));
   SetGenericType();
}     

//______________________________________________________________________________

 TGenericTable::TGenericTable(const TTableDescriptor &dsc,const Text_t *name,Int_t n) : TTable(name,n,dsc.Sizeof()),fColDescriptors(0)
{
  ///////////////////////////////////////////////////////////

  //

  //   Create TGenericTable by TTableDescriptor pointer:

  //

  //   dsc   - Pointer to the table descriptor

  //   name  - The name of this object

  //   n     - The initial number of allocated rows

  //

  ///////////////////////////////////////////////////////////


  // Create a provate copy of the descriptor provided;

   SetDescriptorPointer(new TTableDescriptor(dsc));
   SetGenericType();
}     

// Create TGenericTable by C structure name provided

//______________________________________________________________________________

 TGenericTable::TGenericTable(const char *structName, const Text_t *name) : TTable(name,-1),fColDescriptors(0) 
{
  ///////////////////////////////////////////////////////////

  //

  //  Create TGenericTable by C structure name provided:

  //

  //   dsc   - Pointer to the table descriptor

  //   name  - The name of this object

  //   n     - The initial number of allocated rows

  //

  ///////////////////////////////////////////////////////////

	TTableDescriptor *dsc = TTableDescriptor::MakeDescriptor(structName);
  if (dsc) {
    SetDescriptorPointer(dsc);
    fSize = dsc->Sizeof();
  } 
  if ( !dsc || !fSize) Warning("TGenericTable","Wrong table format");
  SetGenericType();
}     
//______________________________________________________________________________

 TGenericTable::TGenericTable(const char *structName, Int_t n) : TTable("TGenericTable",-1),fColDescriptors(0)
{
  ///////////////////////////////////////////////////////////

  //

  //  Create TGenericTable by C structure name provided:

  //

  //   dsc   - Pointer to the table descriptor

  //   name  - The name of this object

  //   n     - The initial number of allocated rows

  //

  ///////////////////////////////////////////////////////////


  TTableDescriptor *dsc = TTableDescriptor::MakeDescriptor(structName);
  if (dsc) {
    SetDescriptorPointer(dsc);
    fSize = dsc->Sizeof();
  } 
  if ( !dsc || !fSize) Warning("TGenericTable","Wrong table format");
  if (n > 0) Set(n);
  SetGenericType();
}     
//______________________________________________________________________________

 TGenericTable::TGenericTable(const char *structName, const Text_t *name,Int_t n) : TTable(name,-1),fColDescriptors(0)
{
  ///////////////////////////////////////////////////////////

  //

  //   Create TGenericTable by C structure name provided:

  //

  //   dsc   - Pointer to the table descriptor

  //   name  - The name of this object

  //   n     - The initial number of allocated rows

  //

  ///////////////////////////////////////////////////////////

	
  TTableDescriptor *dsc = TTableDescriptor::MakeDescriptor(structName);
  if (dsc) {
    SetDescriptorPointer(dsc);
    fSize = dsc->Sizeof();
  } 
  if ( !dsc || !fSize) Warning("TGenericTable","Wrong table format dsc=0x%x, size=%d",dsc,fSize);
  if (n > 0) Set(n);
  SetGenericType();
}     

//______________________________________________________________________________

 TGenericTable::~TGenericTable()
{
  delete fColDescriptors;
}