/// \file
/// \ingroup tutorial_eve
/// Demonstrates usage of TEveBoxSet class.
///
/// \image html eve_boxset.png
/// \macro_code
///
/// \author Matevz Tadel

#include "TEveManager.h"
#include "TRandom.h"
#include "TEveRGBAPaletteOverlay.h"
#include "TEveFrameBox.h"
#include "TEveBoxSet.h"
#include "TEveBrowser.h"
#include "TEveViewer.h"
#include "TEveEventManager.h"
#include "TGFrame.h"
#include "TGButton.h"
#include "TStyle.h"
#include "TStyle.h"
#include "TSystem.h"
#include "TGLViewer.h"
#include "TEveTrans.h"

#include <iostream>

using namespace std;

TEveRGBAPalette *pal = 0;
TEveRGBAPaletteOverlay *palletteOverlay = 0;

void   make_gui();
void   load_event();
class EvNavHandler
{
public:
   void Fwd()
   {

      load_event();

   }
   void Bck()
   {

      load_event();
      
   }
};
void boxset(Float_t x=0, Float_t y=0, Float_t z=0,
 Int_t num=100, Bool_t registerSet=kTRUE)
{
   TEveManager::Create();

   make_gui();
   load_event();

   //gStyle->SetPalette( kGreenBrownTerrain,0);
   gStyle->SetPalette( kBlackBody,0);
   pal = new TEveRGBAPalette(0, 130);
   palletteOverlay = new TEveRGBAPaletteOverlay(pal, 0.55, 0.1, 0.4, 0.05);
   palletteOverlay->RefAxis().SetTitle("                                                                     PMT Hit Time ");
   palletteOverlay->RefAxis().SetTitleOffset(2.0);
   auto v  = gEve->GetDefaultGLViewer();
   v->AddOverlayElement(palletteOverlay);
   pal->SetupColorArray();
   pal->IncRefCount();

   return ;
}

void load_event(){
  // gEve->GetViewers()->DeleteAnnotations();
   TEveEventManager* CurrentEvent  =gEve->GetCurrentEvent();
   cout<<" Destroy elements "<<endl;
   if(CurrentEvent != 0)
      {
         auto child=CurrentEvent->FindChild("BoxSet");
         if(child)
         {
            cout<<" Removing child called Boxset"<<endl;
            CurrentEvent->RemoveElement(child);
         }
         else
            cout<<" no child called BoxSet"<<endl;
         //DestroyElements();
      }
   TRandom r(0);
   auto frm = new TEveFrameBox();
   frm->SetAABoxCenterHalfSize(0, 0, 0, 12, 12, 12);
   frm->SetFrameColor(kCyan);
   frm->SetBackColorRGBA(120,120,120,20);
   frm->SetDrawBack(kTRUE);

   auto q = new TEveBoxSet("BoxSet");
   q->SetPalette(pal);
   q->SetFrame(frm);
   q->Reset(TEveBoxSet::kBT_AABox, kFALSE, 64);

   int num=100;
   float x=0;
   float y=0;
   float z=0;
   Bool_t registerSet=kTRUE;
   for (Int_t i=0; i<num; ++i) {
      q->AddBox(r.Uniform(-10, 10), r.Uniform(-10, 10), r.Uniform(-10, 10),
       r.Uniform(0.2, 1),  r.Uniform(0.2, 1),  r.Uniform(0.2, 1));
      q->DigitValue(r.Uniform(0, 130));
   }
   q->RefitPlex();

   TEveTrans& t = q->RefMainTrans();
   t.SetPos(x, y, z);

   // Uncomment these two lines to get internal highlight / selection.
   // q->SetPickable(1);
   // q->SetAlwaysSecSelect(1);

   if (registerSet)
   {
      gEve->AddElement(q);
      gEve->Redraw3D(kTRUE);
   }
}
//_______________

void make_gui()
{
  TEveBrowser* browser = gEve->GetBrowser();
  browser->StartEmbedding(TRootBrowser::kLeft);
  TGMainFrame* frmMain = new TGMainFrame(gClient->GetRoot(), 1000, 600);
  frmMain->SetWindowName("HyperK Event Display");
  frmMain->SetCleanup(kDeepCleanup);
  TGCanvas*  fCanvasWindow = new TGCanvas(frmMain, 400, 240);
  TGCompositeFrame* fFrame = new TGCompositeFrame(fCanvasWindow->GetViewPort(), 10, 10, kVerticalFrame);
  fFrame->SetLayoutManager(new TGVerticalLayout(fFrame));    
  fCanvasWindow->SetContainer(fFrame); 
  fFrame->SetCleanup(kDeepCleanup);  
  EvNavHandler    *fh = new EvNavHandler;
  TGGroupFrame* Group;
  {   
      Group = new TGGroupFrame(fCanvasWindow->GetContainer(),"Event Navigation");
      TGHorizontalFrame* hf = new TGHorizontalFrame(Group);
      
      {
         TString icondir( Form("%s/icons/", gSystem->Getenv("ROOTSYS")) );
         TGPictureButton* b = 0;
               // EvNavHandler    *fh = new EvNavHandler;
         b = new TGPictureButton(hf, gClient->GetPicture(icondir+"GoBack.gif"));
         hf->AddFrame(b);
         b->Connect("Clicked()", "EvNavHandler", fh, "Bck()");
         b = new TGPictureButton(hf, gClient->GetPicture(icondir+"GoForward.gif"));
         hf->AddFrame(b);
         b->Connect("Clicked()", "EvNavHandler", fh, "Fwd()");
      }
      
      Group->AddFrame(hf);
      fCanvasWindow->AddFrame(Group);
      fCanvasWindow->AddFrame(Group);
      frmMain->AddFrame(fCanvasWindow,new TGLayoutHints(kLHintsExpandX | kLHintsExpandY,
         0, 0, 2, 2));
      frmMain->MapSubwindows();
      frmMain->Resize();
      frmMain->MapWindow();
      browser->StopEmbedding();
      browser->SetTabTitle("Event Control", 0); 
   }
}