/*=========================================================================
                                                                                
  Program:   bbtk
  Module:    $RCSfile: bbwxvtkViewer3D.cxx,v $
  Language:  C++
  Date:      $Date: 2008/05/14 10:26:32 $
  Version:   $Revision: 1.6 $
                                                                                
  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)
    : 
    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);
   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()
  {
    renderwindow->Delete();
    renderer->Delete();
    interactorstyle->Delete();
    delete wxvtkrenderwindowinteractor;
  }
  //-------------------------------------------------------------------------
  
  //-------------------------------------------------------------------------
  void Viewer3DWidget::Update()
  {
    wxvtkrenderwindowinteractor->Render();
  }
  //-------------------------------------------------------------------------

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

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

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


  BBTK_BLACK_BOX_IMPLEMENTATION(Viewer3D,bbtk::WxBlackBox);

  void Viewer3D::bbUserConstructor() 
  { 
    bbSetInputIn1(NULL);
    bbSetInputIn2(NULL);
    bbSetInputIn3(NULL);
    bbSetInputIn4(NULL);
    bbSetInputIn5(NULL);
    bbSetInputObs1(NULL);
    bbSetInputObs2(NULL);
    bbSetInputObs3(NULL);
    bbSetInputObs4(NULL);
    bbSetInputObs5(NULL);
    bbSetOutputRenderer( NULL );
    bbSetOutputInteractor( NULL );
  }


  void Viewer3D::Process() 
  { 
    ((Viewer3DWidget*)bbGetOutputWidget())->Update();
  }
  

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

    Viewer3DWidget* w = new Viewer3DWidget(this,bbGetWxParent());
    w->Update();
    

    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() );
      }
        

    vtkRenderer *renderer = w->GetRenderer();
    if (renderer!=NULL)
      {
	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();
	bbSetOutputRenderer( renderer );
	  }

    bbSetOutputWidget(w);
    
    bbtkDebugDecTab("Core",9);
    
  }


}//namespace bbwxvtk

#endif