/*=========================================================================
                                                                                
  Program:   bbtk
  Module:    $RCSfile: bbwxvtkViewer3D.cxx,v $
  Language:  C++
  Date:      $Date: 2010/03/07 13:18:43 $
  Version:   $Revision: 1.20 $
                                                                                
  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  l'Image). All rights reserved. See Doc/License.txt or
  http://www.creatis.insa-lyon.fr/Public/bbtk/License.html for details.
                                                                                
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.
                                                                                
=========================================================================*/
/**
 *  \file 
 *  \brief 
 */


#ifdef _USE_WXWIDGETS_


#include "bbwxvtkViewer3D.h"
#include "bbwxvtkPackage.h"

#include "vtkCamera.h"



namespace bbwxvtk
{
  BBTK_ADD_BLACK_BOX_TO_PACKAGE(wxvtk,Viewer3D);
  
  //-------------------------------------------------------------------------
  Viewer3DWidget::Viewer3DWidget(Viewer3D* box, wxWindow *parent, bool stereo)
    : 
    wxPanel( parent, -1, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL),
    mBox(box)
  {
    wxPanel *panel = this;

    wxvtkrenderwindowinteractor = new wxVTKRenderWindowInteractor(panel,-1);
    wxvtkrenderwindowinteractor->UseCaptureMouseOn();

   renderer     = vtkRenderer::New();
   renderwindow = vtkRenderWindow::New();

   renderwindow->AddRenderer(renderer);

   if (stereo==true){
      renderwindow->SetStereoCapableWindow(1);
      //renderwindow->SetStereoTypeToCrystalEyes();  
      renderwindow->SetStereoTypeToRedBlue();
      renderwindow->SetStereoRender(1);
   }

   wxvtkrenderwindowinteractor->SetRenderWindow(renderwindow);
   
   interactorstyle = vtkInteractorStyleTrackballCamera ::New();
   interactorstyle->SetInteractor (  wxvtkrenderwindowinteractor );
   wxvtkrenderwindowinteractor->SetInteractorStyle( interactorstyle );
   
   int x1=0,x2=200,y1=0,y2=200,z1=0,z2=200;
   double spx=1,spy=1,spz=1;
   vtkCamera *camera = renderer->GetActiveCamera();
   camera->SetViewUp ( spx*0, -spy*1, spz*0);
   camera->SetPosition( spx*(x1+x2)/2, spy*(y1+y2)/2, -spz*10000000); 
   camera->SetFocalPoint	( spx*(x1+x2)/2	, spy*(y1+y2)/2	, spz*0); 
   //		camera->SetParallelScale(  spx*(x2-x1)/2.0 );
   renderer->ResetCamera(x1,x2,y1,y2,z1,z2);
   
   renderer->SetBackground(0.1, 0.1, 0.2);
  
   wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
   sizer->Add( wxvtkrenderwindowinteractor , 1, wxEXPAND, 0);
   panel->SetSizer(sizer);
   panel->SetAutoLayout(true);
   panel->Layout();
  
  }
  //-------------------------------------------------------------------------

  //-------------------------------------------------------------------------
  Viewer3DWidget::~Viewer3DWidget()
  {
    mBox->DisableObservers();
    mBox->bbSetOutputWidget(NULL);
    renderwindow->Delete();
    renderer->Delete();
    interactorstyle->Delete();
    delete wxvtkrenderwindowinteractor;
  }
  //-------------------------------------------------------------------------
  
  //-------------------------------------------------------------------------
  void Viewer3DWidget::Update()
  {
    //    wxvtkrenderwindowinteractor->Update();
    wxvtkrenderwindowinteractor->Render();
    renderer->ResetCameraClippingRange();
  }
  //-------------------------------------------------------------------------

  //-------------------------------------------------------------------------
  vtkRenderer *Viewer3DWidget::GetRenderer()
  {
     return renderer;
  }
  //-------------------------------------------------------------------------

  //-------------------------------------------------------------------------
  wxVTKRenderWindowInteractor * Viewer3DWidget::GetInteractor()
  {
    return wxvtkrenderwindowinteractor;
  }
  //-------------------------------------------------------------------------

void Viewer3DWidget::Refresh(bool eraseBackground , const wxRect* rect )
{
//  wxPanel::Refresh(false,rect);
}



  //--------------------------------------------------------------------------
  //-------------------------------------------------------------------------
  //--------------------------------------------------------------------------
  //--------------------------------------------------------------------------


  BBTK_BLACK_BOX_IMPLEMENTATION(Viewer3D,bbtk::WxBlackBox);

	
	//-----------------------------------------------------------------	
	void Viewer3D::bbUserSetDefaultValues()
	{ 
		firsttime=true;
		bbSetInputIn1(NULL);
		bbSetInputIn2(NULL);
		bbSetInputIn3(NULL);
		bbSetInputIn4(NULL);
		bbSetInputIn5(NULL);
		bbSetInputObs1(NULL);
		bbSetInputObs2(NULL);
		bbSetInputObs3(NULL);
		bbSetInputObs4(NULL);
		bbSetInputObs5(NULL);
		bbSetInputStereo(false);
		bbSetOutputRenderer( NULL );
		bbSetOutputInteractor( NULL );
		bbSetOutputWidget(NULL);
	}
	
	//-----------------------------------------------------------------	
	void Viewer3D::bbUserInitializeProcessing()
	{
	}
	
	//-----------------------------------------------------------------	
	void Viewer3D::bbUserFinalizeProcessing()
	{  
	  DisableObservers();
	}

	void Viewer3D::DisableObservers()
	{  
	  Viewer3DWidget* w = (Viewer3DWidget*)bbGetOutputWidget();
	  if (w!=NULL)
	    { 
	      vtkRenderWindowInteractor *interactor = w->GetInteractor();
	      if (interactor!=NULL)
		{
		  if (bbGetInputObs1()!=NULL) 
		    {
		      if (bbGetInputObs1()->GetInteractor()!=NULL)
			bbGetInputObs1()->EnabledOff();
		    }
		  if (bbGetInputObs2()!=NULL) 
		    {
		      if (bbGetInputObs2()->GetInteractor()!=NULL)
		  //bbGetInputObs2()->SetInteractor(NULL);
		      bbGetInputObs2()->EnabledOff();
		    }
		  if (bbGetInputObs3()!=NULL) 
		    {
		     if (bbGetInputObs3()->GetInteractor()!=NULL)
		   //bbGetInputObs3()->SetInteractor(NULL);
		      bbGetInputObs3()->EnabledOff();
		    }
		  if (bbGetInputObs4()!=NULL) 
		    {
		     if (bbGetInputObs4()->GetInteractor()!=NULL)
		   //bbGetInputObs4()->SetInteractor(NULL);
		      bbGetInputObs4()->EnabledOff();
		    }
		  if (bbGetInputObs5()!=NULL) 
		    {
		   if (bbGetInputObs5()->GetInteractor()!=NULL)
		     //bbGetInputObs5()->SetInteractor(NULL);
		      bbGetInputObs5()->EnabledOff();
		    }
		}	
	    }
	}
	
	//--------------------------------------------------------------------------
  void Viewer3D::Process() 
  { 
	  
    if (!bbIsShown()) return;
//EED	  
//	  Viewer3DWidget* w = (Viewer3DWidget*)bbGetOutputWidget();
//	  if (w)   w->Update();

	  
	  
    Viewer3DWidget* w = (Viewer3DWidget*)bbGetOutputWidget();
	  if ((firsttime==true) && (w!=NULL)){ 
		  firsttime=false;
		  
		  vtkRenderWindowInteractor *interactor = w->GetInteractor();
		  if (interactor!=NULL)
		  {

			  if (bbGetInputObs1()!=NULL) 
			  {
				  bbGetInputObs1()->SetInteractor(interactor);
				  bbGetInputObs1()->EnabledOn();
			  }
			  if (bbGetInputObs2()!=NULL) 
			  {
				  bbGetInputObs2()->SetInteractor(interactor);
				  bbGetInputObs2()->EnabledOn();
			  }
			  if (bbGetInputObs3()!=NULL) 
			  {
				  bbGetInputObs3()->SetInteractor(interactor);
				  bbGetInputObs3()->EnabledOn();
			  }
			  if (bbGetInputObs4()!=NULL) 
			  {
				  bbGetInputObs4()->SetInteractor(interactor);
				  bbGetInputObs4()->EnabledOn();
			  }
			  if (bbGetInputObs5()!=NULL) 
			  {
				  bbGetInputObs5()->SetInteractor(interactor);
				  bbGetInputObs5()->EnabledOn();
			  }
			  bbSetOutputInteractor(  w->GetInteractor() );
		  } // interactor
	
		  vtkRenderer *renderer = w->GetRenderer();
		  if (renderer!=NULL)
		  {
			  bbSetOutputRenderer( renderer );
			  
			  /*if (bbGetInputIn1()!=NULL) {renderer->AddActor( bbGetInputIn1() ); }
			  if (bbGetInputIn2()!=NULL) {renderer->AddActor( bbGetInputIn2() ); }
			  if (bbGetInputIn3()!=NULL) {renderer->AddActor( bbGetInputIn3() ); }
			  if (bbGetInputIn4()!=NULL) {renderer->AddActor( bbGetInputIn4() ); }
			  if (bbGetInputIn5()!=NULL) {renderer->AddActor( bbGetInputIn5() ); }
			  renderer->ResetCamera();
			  double bounds[6];
			  renderer->ComputeVisiblePropBounds(bounds);
			  renderer->ResetCameraClippingRange(bounds);*/
			  
		  } // renderer
		  
		  		  
	  } // w && firsttime

	  if(bbGetOutputRenderer()!=NULL){
		   vtkRenderer *renderer = w->GetRenderer();
		  if (bbGetInputIn1()!=NULL) {renderer->AddActor( bbGetInputIn1() ); }
		  if (bbGetInputIn2()!=NULL) {renderer->AddActor( bbGetInputIn2() ); }
		  if (bbGetInputIn3()!=NULL) {renderer->AddActor( bbGetInputIn3() ); }
		  if (bbGetInputIn4()!=NULL) {renderer->AddActor( bbGetInputIn4() ); }
		  if (bbGetInputIn5()!=NULL) {renderer->AddActor( bbGetInputIn5() ); }
		  renderer->ResetCamera();
		  double bounds[6];
		  renderer->ComputeVisiblePropBounds(bounds);
		  renderer->ResetCameraClippingRange(bounds);

	  }

	  if (w!=NULL)   w->Update();

  }
  

  /**
   * \brief  Create Widget . 
   *
   *
   */ 
  void Viewer3D::CreateWidget(wxWindow* parent)
  {
 
    bbtkDebugMessageInc("Core",9,"Viewer3D::CreateWidget()"<<std::endl);

    Viewer3DWidget* w = new Viewer3DWidget(this,
					   parent,
					   //bbGetWxParent(),
					   bbGetInputStereo());
    //EED  w->Update();
    //...
	  
    bbSetOutputWidget(w);
    
    bbtkDebugDecTab("Core",9);
    
  }

  // This callback is necessary to get actual processing of the view 
  // when window is shown
  void  Viewer3D::OnShowWidget()
  {
    Process();
	//    Viewer3DWidget* w = (Viewer3DWidget*)bbGetOutputWidget();
    //    if (w) w->Update();
  }


}//namespace bbwxvtk

#endif