packages/wxvtk/src/bbwxvtkViewer2D.cxx

   1 /*=========================================================================
   2
   3   Program:   bbtk
   4   Module:    $RCSfile: bbwxvtkViewer2D.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2008/12/11 15:30:17 $
   7   Version:   $Revision: 1.32 $
   8
   9   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  10   l'Image). All rights reserved. See Doc/License.txt or
  11   http://www.creatis.insa-lyon.fr/Public/bbtk/License.html for details.
  12
  13      This software is distributed WITHOUT ANY WARRANTY; without even
  14      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15      PURPOSE.  See the above copyright notices for more information.
  16
  17 =========================================================================*/
  18 /**
  19  *  \file
  20  *  \brief
  21  */
  22
  23
  24 #ifdef USE_WXWIDGETS
  25 #ifdef USE_VTK
  26
  27
  28 #include "bbwxvtkViewer2D.h"
  29 #include "bbwxvtkPackage.h"
  30 //#include <wx/dialog.h>
  31
  32 #include "vtkInteractorStyleImage.h"
  33 #include "vtkCamera.h"
  34 #include "vtkRenderer.h"
  35 #include <vtkInteractorStyleImage.h>
  36 #include <vtkCommand.h>
  37
  38
  39
  40 namespace bbwxvtk
  41 {
  42
  43
  44
  45
  46   //--------------------------------------------------------------------------
  47   class Viewer2DWidget : public wxPanel
  48   {
  49   public:
  50     Viewer2DWidget(Viewer2D* box, wxWindow *parent);
  51     ~Viewer2DWidget();
  52     void UpdateView();
  53     vtkRenderer         *GetRenderer();
  54   private:
  55     bool                        mFirstTime;
  56     Viewer2D                    *mBox;
  57     wxvtkImageViewer2           *imageViewer;
  58     vtkImageData                *backImageData;
  59     vtkImageData                *mDefaultImage;
  60     wxVTKRenderWindowInteractor *wxvtkrenderwindowinteractor;
  61     bool mUpdateCamera;
  62
  63     vtkImplicitPlaneWidget * maPlane1, * maPlane2, * mbPlane1, * mbPlane2;
  64   };
  65
  66   Viewer2DWidget::Viewer2DWidget(Viewer2D* box,
  67                                  wxWindow *parent)
  68     :
  69     wxPanel( parent, -1, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL),
  70     mFirstTime(true),
  71     mBox(box)
  72   {
  73     wxPanel *panel      = this;
  74
  75     wxvtkrenderwindowinteractor = new wxVTKRenderWindowInteractor(panel,-1);
  76     wxvtkrenderwindowinteractor->UseCaptureMouseOn();
  77
  78     imageViewer = wxvtkImageViewer2::New();
  79     imageViewer->SetSlice( 1 );
  80     imageViewer->SetupInteractor ( wxvtkrenderwindowinteractor );
  81
  82     mDefaultImage = vtkImageData::New();
  83     int dim[3];
  84     dim[0] = dim[1] = 32 ;
  85     dim[2] = 2;
  86     mDefaultImage->SetDimensions ( dim );
  87     mDefaultImage->SetSpacing(1,1,1);
  88     mDefaultImage->SetExtent(0,dim[0]-1,0,dim[1]-1,0,dim[2]-1);
  89     mDefaultImage->SetWholeExtent(0,dim[0]-1,0,dim[1]-1,0,dim[2]-1);
  90
  91     mDefaultImage->SetScalarTypeToUnsignedChar();
  92     mDefaultImage->AllocateScalars();
  93     for (int i=0;i<dim[0];i++)
  94       for (int j=0;j<dim[1];j++)
  95         for (int k=0;k<dim[2];k++)
  96         mDefaultImage->SetScalarComponentFromFloat(i,j,k,0,0);
  97
  98     for (int i=0;i<dim[0];i++)
  99         {
 100           mDefaultImage->SetScalarComponentFromFloat(dim[0]-i-1,i,0,0,255);
 101           mDefaultImage->SetScalarComponentFromFloat(i,i,1,0,255);
 102         }
 103
 104     backImageData = mDefaultImage;
 105     imageViewer->SetInput( backImageData );
 106     mUpdateCamera = true;
 107
 108     wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
 109     sizer-> Add( wxvtkrenderwindowinteractor , 1, wxEXPAND, 0);
 110     panel-> SetSizer(sizer);
 111     panel-> SetAutoLayout(true);
 112     panel-> Layout();
 113
 114
 115     //  wxvtkrenderwindowinteractor->Refresh();
 116     //  wxvtkrenderwindowinteractor->Render();
 117     //  imageViewer->GetRenderer()->ResetCameraClippingRange();
 118
 119     imageViewer->GetRenderer()->SetBackground(0.1,0.1,0.2);
 120
 121   }
 122   //-------------------------------------------------------------------------
 123
 124   Viewer2DWidget::~Viewer2DWidget()
 125   {
 126     //    delete wxvtkrenderwindowinteractor;
 127     // pourquoi pas wxvtkrenderwindowinteractor->Delete(); // JP
 128     // LG : because it has been allocated with operator new not method ::New
 129     // we want to force its destruction without taking care of vtk ref counting
 130     // on the contrary the following vtk objects are deleted with vtk Delete
 131     //    std::cout << "Viewer2DWidget::~Viewer2DWidget()" << std::endl;
 132     mDefaultImage->Delete();
 133
 134     if (backImageData)
 135       {
 136         //      backImageData->UnRegister(NULL);
 137       }
 138     if (imageViewer)
 139       {
 140         imageViewer->Delete();
 141       }
 142     delete wxvtkrenderwindowinteractor;
 143     //    std::cout << "Viewer2DWidget::~Viewer2DWidget() OK" << std::endl;
 144   }
 145
 146   //-------------------------------------------------------------------------
 147
 148
 149
 150
 151   void Viewer2DWidget::UpdateView()
 152   {
 153     //    std::cout << "Viewer2DWidget::UpdateView() " << std::endl;
 154     //   std::cout << "slice="<<mBox->bbGetInputSlice()<<std::endl;
 155
 156
 157     if ( ( mBox->bbGetInputIn() == NULL ) &&
 158          ( backImageData != mDefaultImage ) )
 159       {
 160         //
 161         //      std::cout << "** Viewer2DWidget::UpdateView() : NULL Input (reset)"               <<std::endl;
 162         backImageData = mDefaultImage;
 163         mUpdateCamera = true;
 164
 165       }
 166     else if ( ( mBox->bbGetInputIn() != NULL ) &&
 167               (( mBox->bbGetInputStatus("In") != bbtk::UPTODATE  ) ||
 168                ( mFirstTime))
 169               )
 170               //(backImageData != mBox->bbGetInputIn()) )
 171       {
 172
 173         //      std::cout << "** Viewer2DWidget::UpdateView() : Input changed"                    <<std::endl;
 174         mFirstTime = false;
 175         backImageData = mBox->bbGetInputIn();
 176         backImageData->Update();
 177         imageViewer->SetInput( backImageData );
 178         mUpdateCamera = true;
 179       }
 180
 181     if (mUpdateCamera)
 182       {
 183         //      std::cout << "** Viewer2DWidget::UpdateView() : Update Camera"
 184         //                <<std::endl;
 185         int x1,x2,y1,y2,z1,z2;
 186         double spx,spy,spz;
 187         backImageData->GetSpacing(spx,spy,spz);
 188         backImageData->GetExtent (x1,x2,y1,y2,z1,z2);
 189
 190         double *range = backImageData->GetScalarRange();
 191         imageViewer->SetColorWindow(range[1] - range[0]);
 192         imageViewer->SetColorLevel(0.5 * (range[1] + range[0]));
 193
 194         imageViewer->GetRenderer()->ResetCamera();
 195         double bounds[6];
 196         imageViewer->GetRenderer()->ComputeVisiblePropBounds(bounds);
 197         imageViewer->GetRenderer()->ResetCameraClippingRange(bounds);
 198
 199         //      bbtkMessage("Output",2,"Viewer2D '"<<mBox->bbGetName()<<"' - Image :"<<std::endl);
 200         //      std::cout << " extent  = "<< x1<<"-"<<x2<<" x "<<y1<<"-"<<y2<<" x "<<z1<<"-"<<z2<<std::endl;
 201         //      std::cout << " spacing = "<<spx << " - "<< spy << " - "<<spz<<std::endl;
 202         /*
 203         vtkCamera *camera = imageViewer->GetRenderer()->GetActiveCamera();
 204
 205         camera->SetViewUp    ( spx*0,         -spy*1,        spz*0 );
 206         camera->SetPosition  ( spx*(x1+x2)/2, spy*(y1+y2)/2, -spz*10000000 );
 207         camera->SetFocalPoint( spx*(x1+x2)/2, spy*(y1+y2)/2, spz*0 );
 208
 209         camera->ComputeViewPlaneNormal();
 210         camera->SetParallelScale(  spx*(x2-x1)/2.0 );
 211         //
 212         //      imageViewer->GetRenderer()->ResetCamera(x1,x2,y1,y2,z1,z2);
 213         mUpdateCamera = false;
 214         //      std::cout << "Viewer2DWidget::UpdateView() passe par 3" << std::endl;
 215         imageViewer->SetColorWindow(512);
 216         imageViewer->SetColorLevel(256);
 217         */
 218          /*
 219         for (int i=0;i<10;i++)
 220           for (int j=0;j<10;j++)
 221             std::cout << mBox->bbGetInputIn()->GetScalarComponentAsFloat(i,j,0,0)
 222                       << std::endl;
 223          */
 224     }
 225
 226     //  std::cout << "OW = "<< mBox->bbGetWindow() << std::endl;
 227     //  std::cout << "CW = "<< mBox->bbGetContainingWindow() << std::endl;
 228     //  std::cout << "Sh = "<< mBox->bbIsShown() << std::endl;
 229
 230     int orientation = mBox->bbGetInputOrientation();
 231     if (orientation<0 || orientation>2) {
 232       bbtkMessage("Output", 2, "Viewer2D : Orientation was not 0< <2 "<<std::endl);
 233        orientation=2; // Why not?
 234     }
 235     // mBox->bbIsShown() is necessary to be sure that the wxWindow is already
 236     // created and displayed.
 237     // Else when slice != 0 we get an X Window System error with wxGTK
 238     if (
 239         (backImageData!=NULL)&&
 240         (mBox->bbIsShown()))
 241     {
 242                 int z = mBox->bbGetInputSlice();
 243                 //      std::cout << "slice = "<<z<<std::endl;
 244                 int ext[6];
 245                 backImageData->GetWholeExtent(ext);
 246                 /*
 247                 std::cout << "ext = "<<ext[0]<<" - "<<ext[1]<<" ; "
 248                           <<ext[2]<<" - "<<ext[3]<<" ; "
 249                           <<ext[4]<<" - "<<ext[5]
 250                           <<std::endl;
 251                 */
 252             switch(orientation){
 253                case 0:
 254                 if (z<ext[0]) { z=ext[0]; }
 255                 if (z>ext[1]) { z=ext[1]; }
 256
 257                 break;
 258
 259                case 1:
 260                 if (z<ext[2]) { z=ext[2]; }
 261                 if (z>ext[3]) { z=ext[3]; }
 262                 break;
 263
 264                case 2:
 265                 if (z<ext[4]) { z=ext[4]; }
 266                 if (z>ext[5]) { z=ext[5]; }
 267                 break;
 268
 269               default:
 270                 bbtkMessage("Output", 2, "Viewer2D : Orientation was not 0< <2 (shouldn't arrive here!"<<std::endl);
 271                 z = ext[5]; // Why not?
 272            }
 273             wxvtkrenderwindowinteractor->Refresh();
 274             wxvtkrenderwindowinteractor->Render();
 275             bbtkDebugMessage("Output",3,"Viewer2D : slice = "<<z<<std::endl);
 276             imageViewer->SetSliceOrientation (orientation);
 277             imageViewer->SetSlice( z );
 278
 279     }
 280
 281
 282   }
 283
 284
 285   vtkRenderer * Viewer2DWidget::GetRenderer()
 286   {
 287           return imageViewer->GetRenderer();
 288   }
 289
 290
 291
 292   //--------------------------------------------------------------------------
 293   //-------------------------------------------------------------------------
 294   //--------------------------------------------------------------------------
 295   //--------------------------------------------------------------------------
 296
 297
 298   BBTK_ADD_BLACK_BOX_TO_PACKAGE(wxvtk,Viewer2D);
 299   BBTK_BLACK_BOX_IMPLEMENTATION(Viewer2D,bbtk::WxBlackBox);
 300
 301
 302   void Viewer2D::Process()
 303   {
 304     //    std::cout << "Viewer2D::Process" << std::endl;
 305     //    std::cout << "In="<<bbtk::GetIOStatusString(bbGetInputStatus("In")) << std::endl;
 306     //    std::cout << "Slice="<<bbtk::GetIOStatusString(bbGetInputStatus("Slice")) << std::endl;
 307     Viewer2DWidget* w = (Viewer2DWidget*)bbGetOutputWidget();
 308     if (w)
 309       {
 310         w->UpdateView();
 311       }
 312     bbSetOutputOut( bbGetInputSlice() );
 313
 314   }
 315
 316
 317   void Viewer2D::bbUserConstructor()
 318   {
 319     bbSetInputIn(NULL);
 320     bbSetInputSlice(0);
 321     bbSetOutputWidget(0);
 322     bbSetOutputRenderer(0);
 323     bbSetInputOrientation(2);
 324   }
 325
 326
 327   void Viewer2D::CreateWidget(wxWindow* parent)
 328   {
 329     Viewer2DWidget* w = new Viewer2DWidget(this,parent);
 330     w->UpdateView();
 331     bbSetOutputWidget(w);
 332     bbSetOutputRenderer( ((Viewer2DWidget*)bbGetOutputWidget())->GetRenderer() );
 333
 334   }
 335
 336
 337
 338 }//namespace bbtk
 339
 340 #endif
 341 #endif
 342