lib/cpExtensions/Interaction/ImageInteractorStyle.cxx

   1 #include <cpExtensions/Interaction/ImageInteractorStyle.h>
   2
   3 #include <vtkCamera.h>
   4 #include <vtkCommand.h>
   5 #include <vtkImageActor.h>
   6 #include <vtkImageMapper3D.h>
   7 #include <vtkImageSliceMapper.h>
   8 #include <vtkPropCollection.h>
   9 #include <vtkProperty.h>
  10 #include <vtkRenderWindowInteractor.h>
  11 #include <vtkRenderer.h>
  12
  13 // -------------------------------------------------------------------------
  14 /* TODO
  15    cpExtensions::Interaction::ImageInteractorStyle::TSeedWidget::
  16    TSeedWidget( vtkRenderWindowInteractor* interactor, vtkImageActor* actor )
  17    {
  18    this->Placer = vtkSmartPointer< vtkImageActorPointPlacer >::New( );
  19    this->Handle = vtkSmartPointer< vtkPointHandleRepresentation3D >::New( );
  20    this->Representation = vtkSmartPointer< vtkSeedRepresentation >::New( );
  21    this->Widget = vtkSmartPointer< SeedWidget >::New( );
  22
  23    this->Placer->SetImageActor( actor );
  24    this->Handle->GetProperty( )->SetColor( 1, 0, 0 );
  25    this->Handle->SetPointPlacer( this->Placer );
  26    this->Representation->SetHandleRepresentation( this->Handle );
  27    this->Widget->SetRepresentation( this->Representation );
  28    this->Widget->SetInteractor( interactor );
  29    }
  30
  31    // -------------------------------------------------------------------------
  32    void cpExtensions::Interaction::ImageInteractorStyle::TSeedWidget::
  33    On( )
  34    {
  35    this->Widget->On( );
  36    }
  37
  38    // -------------------------------------------------------------------------
  39    void cpExtensions::Interaction::ImageInteractorStyle::TSeedWidget::
  40    Off( )
  41    {
  42    this->Widget->Off( );
  43    }
  44 */
  45
  46 // -------------------------------------------------------------------------
  47 cpExtensions::Interaction::ImageInteractorStyle::
  48 Self* cpExtensions::Interaction::ImageInteractorStyle::
  49 New( )
  50 {
  51   return( new Self );
  52 }
  53
  54 // -------------------------------------------------------------------------
  55 void cpExtensions::Interaction::ImageInteractorStyle::
  56 SetCurrentRenderer( vtkRenderer* r )
  57 {
  58   this->Superclass::SetCurrentRenderer( r );
  59
  60   if( !( this->m_Configured ) )
  61   {
  62     auto lst = this->m_PropPicker->GetPickList( );
  63     if( lst == NULL )
  64       return;
  65     if( lst->GetNumberOfItems( ) == 1 )
  66     {
  67       auto actor = dynamic_cast< vtkImageActor* >( lst->GetItemAsObject( 0 ) );
  68       if( actor != NULL )
  69       {
  70         this->_ConfigureCamera( actor );
  71         this->Modified( );
  72
  73       } // fi
  74
  75     } // fi
  76
  77   } // fi
  78 }
  79
  80 // -------------------------------------------------------------------------
  81 void cpExtensions::Interaction::ImageInteractorStyle::
  82 AssociateImageActor( vtkImageActor* actor )
  83 {
  84   if( actor != NULL )
  85   {
  86     // Update picker
  87     this->m_PropPicker->GetPickList( )->RemoveAllItems( );
  88     this->m_PropPicker->AddPickList( actor );
  89     this->m_Configured = false;
  90     this->_ConfigureCamera( actor );
  91
  92     // Ok, done
  93     this->Modified( );
  94
  95   } // fi
  96 }
  97
  98 // -------------------------------------------------------------------------
  99 /*
 100 void cpExtensions::Interaction::ImageInteractorStyle::
 101 SeedWidgetOn( )
 102 {
 103   if( this->m_SeedWidget != NULL ) delete this->m_SeedWidget;
 104
 105   this->m_PropPicker->GetPickList( )->InitTraversal( );
 106   this->m_SeedWidget = new TSeedWidget(
 107     this->Interactor,
 108     dynamic_cast< vtkImageActor* >(
 109       this->m_PropPicker->GetPickList( )->GetNextProp( )
 110       )
 111     );
 112   this->m_SeedWidget->On( );
 113 }
 114
 115 // -------------------------------------------------------------------------
 116 void cpExtensions::Interaction::ImageInteractorStyle::
 117 SeedWidgetOff( )
 118 {
 119   if( this->m_SeedWidget != NULL )
 120   {
 121     this->m_SeedWidget->Off( );
 122     delete this->m_SeedWidget;
 123     this->m_SeedWidget = NULL;
 124
 125   } // fi
 126 }
 127 */
 128
 129 // -------------------------------------------------------------------------
 130 /*
 131 void cpExtensions::Interaction::ImageInteractorStyle::
 132 SetSeedWidgetCommand( vtkCommand* cmd )
 133 {
 134   if( cmd == NULL || this->m_SeedWidget == NULL )
 135     return;
 136   this->m_SeedWidget->Widget->
 137     AddObserver( vtkCommand::PlacePointEvent, cmd );
 138 }
 139
 140 // -------------------------------------------------------------------------
 141 unsigned int cpExtensions::Interaction::ImageInteractorStyle::
 142 GetNumberOfSeeds( ) const
 143 {
 144   if( this->m_SeedWidget != NULL )
 145     return( this->m_SeedWidget->Representation->GetNumberOfSeeds( ) );
 146   else
 147     return( 0 );
 148 }
 149
 150 // -------------------------------------------------------------------------
 151 void cpExtensions::Interaction::ImageInteractorStyle::
 152 GetSeedAsPoint( unsigned int id, double pos[ 3 ] ) const
 153 {
 154   if( this->m_SeedWidget != NULL )
 155     this->m_SeedWidget->Representation->GetSeedWorldPosition( id, pos );
 156 }
 157
 158 // -------------------------------------------------------------------------
 159 void cpExtensions::Interaction::ImageInteractorStyle::
 160 GetSeedAsIndex( unsigned int id, int idx[ 3 ] ) const
 161 {
 162      if( this->m_SeedWidget != NULL )
 163      this->m_SeedWidget->Representation->GetSeedWorldPosition( id, pos );
 164 }
 165 */
 166
 167 // -------------------------------------------------------------------------
 168 cpExtensions::Interaction::ImageInteractorStyle::
 169 ImageInteractorStyle( )
 170   : Superclass( ),
 171     m_Configured( false )
 172     /*
 173       ,
 174       m_SeedWidget( NULL )
 175     */
 176 {
 177   this->m_PropPicker = vtkSmartPointer< vtkPropPicker >::New( );
 178   this->m_PropPicker->PickFromListOn( );
 179 }
 180
 181 // -------------------------------------------------------------------------
 182 cpExtensions::Interaction::ImageInteractorStyle::
 183 ~ImageInteractorStyle( )
 184 {
 185   // if( this->m_SeedWidget != NULL ) delete this->m_SeedWidget;
 186 }
 187
 188 // -------------------------------------------------------------------------
 189 void cpExtensions::Interaction::ImageInteractorStyle::
 190 _ConfigureCamera( vtkImageActor* actor )
 191 {
 192   if( this->CurrentRenderer != NULL )
 193   {
 194     // Update camera
 195     auto camera = this->CurrentRenderer->GetActiveCamera( );
 196     auto mapper = dynamic_cast< vtkImageSliceMapper* >( actor->GetMapper( ) );
 197     if( mapper != NULL && camera != NULL )
 198     {
 199       double bounds[ 6 ];
 200       actor->GetBounds( bounds );
 201       camera->ParallelProjectionOn( );
 202       camera->SetFocalPoint( double( 0 ), double( 0 ), double( 0 ) );
 203       int orientation = mapper->GetOrientation( );
 204       switch( orientation )
 205       {
 206       case 0:
 207       {
 208         camera->SetPosition( double( 1 ), double( 0 ), double( 0 ) );
 209         camera->SetViewUp  ( double( 0 ), double( 1 ), double( 0 ) );
 210       }
 211       break;
 212       case 1:
 213       {
 214         camera->SetPosition( double( 0 ), double( 1 ), double( 0 ) );
 215         camera->SetViewUp  ( double( 0 ), double( 0 ), double( -1 ) );
 216       }
 217       break;
 218       case 2:
 219       {
 220         camera->SetPosition( double( 0 ), double( 0 ), double( 1 ) );
 221         camera->SetViewUp  ( double( 0 ), double( 1 ), double( 0 ) );
 222       }
 223       break;
 224       default:
 225         break;
 226       } // hctiws
 227       this->CurrentRenderer->ResetCamera( );
 228       this->m_Configured = true;
 229
 230     } // fi
 231
 232   } // fi
 233 }
 234
 235 // -------------------------------------------------------------------------
 236 bool cpExtensions::Interaction::ImageInteractorStyle::
 237 _PickPosition( int idx[ 2 ], double pos[ 3 ] )
 238 {
 239   vtkRenderWindowInteractor* rwi = this->GetInteractor( );
 240   if( rwi == NULL )
 241     return( false );
 242
 243   // Find the renderer where the event has been raised
 244   idx[ 0 ] = rwi->GetEventPosition( )[ 0 ];
 245   idx[ 1 ] = rwi->GetEventPosition( )[ 1 ];
 246   this->FindPokedRenderer( double( idx[ 0 ] ), double( idx[ 1 ] ) );
 247
 248   // Pick a 3D position
 249   int r = this->m_PropPicker->Pick(
 250     double( idx[ 0 ] ), double( idx[ 1 ] ), double( 0 ),
 251     this->CurrentRenderer
 252     );
 253   if( r == 0 )
 254     return( false );
 255   this->m_PropPicker->GetPickPosition( pos );
 256   return( true );
 257 }
 258
 259 // eof - $RCSfile$