// @(#)root/eve:$Id$
// Author: Matevz Tadel 2007

/*************************************************************************
* Copyright (C) 1995-2007, Rene Brun and Fons Rademakers.               *
* All rights reserved.                                                  *
*                                                                       *
* For the licensing terms see $ROOTSYS/LICENSE.                         *
* For the list of contributors see $ROOTSYS/README/CREDITS.             *
*************************************************************************/

#include "TEveProjectionAxes.h"
#include "TEveProjectionManager.h"
#include "TMath.h"


//______________________________________________________________________________
//
// Axes for non-linear projections. Show scale of TEveProjectionManager
// children. With different step mode tick-marks can positioned
// equidistant or placed with value monotonically increasing from lower left corner
// of bounding box.

ClassImp(TEveProjectionAxes);

//______________________________________________________________________________
TEveProjectionAxes::TEveProjectionAxes(TEveProjectionManager* m, Bool_t useCS) :
   TEveElement(),
   TNamed("TEveProjectionAxes", ""),
   fManager(m),

   fUseColorSet(useCS),

   fLabMode(kValue),
   fAxesMode(kAll),

   fDrawCenter(kFALSE),
   fDrawOrigin(kFALSE)
{
   // Constructor.

   fCanEditMainTrans = kFALSE;
   fManager->AddDependent(this);

   // Axis attributes.
   fNdivisions = 1010;
   fLabelSize = 0.015;
   fLabelColor = kGray+1;
   fAxisColor = kGray+1;
   fTickLength = 0.015;
   fLabelOffset = 0.01;
}

//______________________________________________________________________________
TEveProjectionAxes::~TEveProjectionAxes()
{
   // Destructor.

   fManager->RemoveDependent(this);
}

//______________________________________________________________________________
void TEveProjectionAxes::Paint(Option_t*)
{
   // Paint this object. Only direct rendering is supported.

   PaintStandard(this);
}

//______________________________________________________________________________
void TEveProjectionAxes::ComputeBBox()
{
   // Virtual from TAttBBox; fill bounding-box information.

   static const TEveException eH("TEveProjectionManager::ComputeBBox ");

   BBoxZero();
   if(fManager == 0 || fManager->GetBBox() == 0)
      return;

   for (Int_t i=0; i<6; ++i)
      fBBox[i] = fManager->GetBBox()[i];

   AssertBBoxExtents(0.1);
}

//______________________________________________________________________________
const TGPicture* TEveProjectionAxes::GetListTreeIcon(Bool_t)
{
   // Return TEveProjectionAxes icon.

   return TEveElement::fgListTreeIcons[6];
}