// $Id$
//-----------------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//         Experiment Data Processing at EE department, GSI
//-----------------------------------------------------------------------
// Copyright (C) 2000- GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
//                     Planckstr. 1, 64291 Darmstadt, Germany
// Contact:            http://go4.gsi.de
//-----------------------------------------------------------------------
// This software can be used under the license agreements as stated
// in Go4License.txt file which is part of the distribution.
//-----------------------------------------------------------------------

#include "TGo4PolyCondPainter.h"

#include "TVirtualPad.h"
#include "TROOT.h"

#include "TGo4PolyCondView.h"

TGo4PolyCondPainter::TGo4PolyCondPainter() :
   TGo4ConditionPainter(),
   fxCutView(nullptr)
{
}

TGo4PolyCondPainter::TGo4PolyCondPainter(const char *name, const char *title) :
   TGo4ConditionPainter(name,title),
   fxCutView(nullptr)
{
}

TGo4PolyCondPainter::~TGo4PolyCondPainter()
{
   UnPaintCondition();
   if (fxCutView) {
      delete fxCutView;
      fxCutView = nullptr;
   }
}


void TGo4PolyCondPainter::PaintCondition(Option_t *opt)
{
   if(!gPad) return;
   TObject *cutinpad = gPad->GetListOfPrimitives()->FindObject(fxCutView);

   //if(fxCutView && cutinpad && (fxCutView->IsAtExecuteMouseEvent() || fxCutView->IsAtExecuteMouseMenu())) return; // do not repaint during mouse move on polygon

   if(fxCutView && cutinpad && fxCutView->IsAtExecuteMouseEvent()) return; // do not repaint during mouse move on polygon
   if(fxCutView && fxCutView->IsAtExecuteMouseMenu()) return;

   TGo4PolyCond *pconny=dynamic_cast<TGo4PolyCond*>(fxCondition);
   if(pconny && pconny->IsVisible()) {
      TCutG *cutg = pconny->GetCut(kFALSE);
      if(!cutg) return; // case of empty polygon condition
      // JAM2016: deletion from canvas is suppressed inside Go4 by QtROOT interface. Just create if not already there:
      if(!fxCutView) {
         // Only set up new view object if not already there
         // necessary to change cut interactively (points, colors, etc...)
         // Since cutg may be deleted from canvas by user.
         fxCutView = new TGo4PolyCondView(cutg);

         fxCutView->SetLineWidth(pconny->GetLineWidth());
         fxCutView->SetLineColor(pconny->GetLineColor());
         fxCutView->SetLineStyle(pconny->GetLineStyle());
         fxCutView->SetFillColor(pconny->GetFillColor());
         fxCutView->SetFillStyle(pconny->GetFillStyle());
      } else {
          //if(!fxCutView->IsAtExecuteMouseMenu()) // suppress exchanging point arrays during insert/remove points menu JAM2016
           fxCutView->SetCut(cutg); // update view if condition was changed manually
        }

      fxCutView->SetCondition(pconny); // back-reference for execute event
      if(!strcmp(opt,"fixstyle")) {
         // reproduce condition colors always
         // this mode will prevent the user from changing style interactively
         fxCutView->SetLineWidth(pconny->GetLineWidth());
         fxCutView->SetLineColor(pconny->GetLineColor());
         fxCutView->SetLineStyle(pconny->GetLineStyle());
         fxCutView->SetFillColor(pconny->GetFillColor());
         fxCutView->SetFillStyle(pconny->GetFillStyle());
      }
      if(!cutinpad) {
         fxCutView->AppendPad();
      }
   }// if(pconny && pconny->IsVisible())
else
   UnPaintCondition();
}

void TGo4PolyCondPainter::UnPaintCondition(Option_t *opt)
{
   if(!fxCutView) return; // JAM2016
   gROOT->GetListOfCanvases()->RecursiveRemove(fxCutView);
   // we do not delete view, but restore graphics properties though invisible
   TString option(opt);
   if(option.Contains("reset")) {
      delete fxCutView;
      fxCutView = nullptr;
   }
}

void TGo4PolyCondPainter::DisplayToFront(Option_t *opt)
{
   if(fxCutView) fxCutView->Pop(); // box to front
   TGo4LabelPainter::DisplayToFront(opt); // label itself will be frontmost
}

void TGo4PolyCondPainter::SetCondition(TGo4Condition *con)
{
   fxCondition = con;
   if (fxCutView)
      fxCutView->SetCondition(dynamic_cast<TGo4PolyCond *>(con));
}