// $Header$

#include "StraightLineSet.h"

#include <TBuffer3D.h>
#include <TBuffer3DTypes.h>
#include <TVirtualPad.h>
#include <TVirtualViewer3D.h>

#include <TRandom.h>

using namespace Reve;

//______________________________________________________________________
// StraightLineSet
//

ClassImp(StraightLineSet)

StraightLineSet::StraightLineSet(const Text_t* n, const Text_t* t):
  RenderElement(fColor),
  TNamed(n, t),
  fLinePlex(sizeof(Line), 4),
  fMarkerPlex(sizeof(Marker), 8),
  fRnrMarkers(kTRUE),
  fRnrLines(kTRUE)
{
  fColor = 4;
  fMarkerColor = 2;
  fMarkerStyle = 20;
}

/**************************************************************************/

void StraightLineSet::AddLine(Float_t x1, Float_t y1, Float_t z1, 
                            Float_t x2, Float_t y2, Float_t z2)
{
  fLastLine = new (fLinePlex.NewAtom()) Line(x1, y1, z1, x2, y2, z2);
}

/**************************************************************************/

void StraightLineSet::AddMarker(Int_t line, Float_t pos)
{
  /*Marker* marker = */new (fMarkerPlex.NewAtom()) Marker(line, pos);
}

/**************************************************************************/

void StraightLineSet::ComputeBBox()
{
  static const Exc_t eH("StraightLineSet::ComputeBBox ");
  if(fLinePlex.Size() == 0) {
    BBoxZero();
    return;
  }

  BBoxInit();

  VoidCPlex::iterator li(fLinePlex);
  while (li.next()) {
    BBoxCheckPoint(((Line*)li())->fV1);
    BBoxCheckPoint(((Line*)li())->fV2);
  }
}

/**************************************************************************/

void StraightLineSet::Paint(Option_t* /*option*/)
{
  static const Exc_t eH("StraightLineSet::Paint ");

  TBuffer3D buff(TBuffer3DTypes::kGeneric);

  // Section kCore
  buff.fID           = this;
  buff.fColor        = fColor;
  buff.fTransparency = 0;
  buff.fLocalFrame   = kFALSE;
  buff.SetSectionsValid(TBuffer3D::kCore);

  Int_t reqSections = gPad->GetViewer3D()->AddObject(buff);
  if (reqSections != TBuffer3D::kNone)
    Error(eH, "only direct GL rendering supported.");
}