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// $Id: G4GMocrenFileViewer.cc,v 1.3 2009/12/03 11:44:42 akimura Exp $
// GEANT4 tag $Name:  $
//
//
// Created:  Mar. 31, 2009  Akinori Kimura  
//


#define __G_ANSI_C__
#define G4GMocrenFile_STRUCTURE_PRIORITY  1.

#include "G4ios.hh"
#include <cstdio>
#include <cstring>
#include <cassert>

#include "G4Scene.hh"
#include "G4Vector3D.hh"
#include "G4VisExtent.hh"
#include "G4LogicalVolume.hh"
#include "G4VSolid.hh"

#include "G4GMocrenFile.hh"
#include "G4GMocrenFileSceneHandler.hh"
#include "G4GMocrenFileViewer.hh"
#include "G4GMocrenMessenger.hh"


//----- constants

//-- for a debugging
const bool GFDEBUG = false;

//----- G4GMocrenFileViewer, constructor
G4GMocrenFileViewer::G4GMocrenFileViewer (G4GMocrenFileSceneHandler& sceneHandler,
					  G4GMocrenMessenger & messenger,
					  const G4String& name)
  : G4VViewer (sceneHandler, sceneHandler.IncrementViewCount (), name),
    kSceneHandler (sceneHandler),
    kMessenger(messenger)
{
  // Set a g4.gdd-file viewer 
  std::strcpy( kG4GddViewer, "gMocren" ); 
  if( getenv( "G4GMocrenFile_VIEWER" ) != NULL ) {
    std::strcpy( kG4GddViewer, getenv( "G4GMocrenFile_VIEWER" ) ) ;			
  } 

  // string for viewer invocation
  if ( !std::strcmp( kG4GddViewer, "NONE" ) ) {
		
    std::strcpy( kG4GddViewerInvocation, "" );
  } else {

    std::strcpy( kG4GddViewerInvocation, kG4GddViewer );
    std::strcat( kG4GddViewerInvocation, " ");
    std::strcat( kG4GddViewerInvocation, kSceneHandler.GetGddFileName() );
  }

}

//----- G4GMocrenFileViewer, destructor
G4GMocrenFileViewer::~G4GMocrenFileViewer () 
{}

//----- G4GMocrenFileViewer::SetView () 
void G4GMocrenFileViewer::SetView () 
{
  if(GFDEBUG)
    G4cerr << "***** G4GMocrenFileViewer::SetView(): No effects" << G4endl;

  // Do nothing, since DAWN is running as a different process.
  // SendViewParameters () will do this job instead.
}


//----- G4GMocrenFileViewer::ClearView()
void
G4GMocrenFileViewer::ClearView( void )
{
  if(GFDEBUG)
    G4cerr << "***** G4GMocrenFileViewer::ClearView (): No effects " << G4endl;

  //if(kSceneHandler.kGddDest) {
    //kSceneHandler.kGddDest.close();
    // Re-open with same filename...
    //kSceneHandler.kGddDest.open(kSceneHandler.kGddFileName);
    kSceneHandler.kFlagInModeling = false;
    kSceneHandler.GFBeginModeling();
    //}
}


//----- G4GMocrenFileViewer::DrawView () 
void G4GMocrenFileViewer::DrawView () 
{
  if(GFDEBUG)
    G4cerr << "***** G4GMocrenFileViewer::DrawView () " << G4endl;

  //----- 
  kSceneHandler.GFBeginModeling() ;

  //----- Always visit G4 kernel 
  NeedKernelVisit ();
	                           
  //----- Draw
  G4VViewer::ProcessView () ;

} // G4GMocrenFileViewer::DrawView () 



//----- G4GMocrenFileViewer::ShowView()
void G4GMocrenFileViewer::ShowView( void )
{
  if(GFDEBUG)
    G4cerr << "***** G4GMocrenFileViewer::ShowView () " << G4endl;

  if( kSceneHandler.GFIsInModeling() ) 
    {
      //----- End of modeling
      // !EndModeling, !DrawAll, !CloseDevice,
      // close g4.gdd
      kSceneHandler.GFEndModeling();

      //----- Output DAWN GUI file 
      //SendViewParameters(); 

      //----- string for viewer invocation
      if ( !strcmp( kG4GddViewer, "NONE" ) ) {
		
	std::strcpy( kG4GddViewerInvocation, "" );
      } else {

	std::strcpy( kG4GddViewerInvocation, kG4GddViewer );
	std::strcat( kG4GddViewerInvocation, " ");
	std::strcat( kG4GddViewerInvocation, kSceneHandler.GetGddFileName() );
      }

    }

} // G4GMocrenFileViewer::ShowView()

