lib/cpExtensions/Interaction/ImageSliceStyle.cxx

   1 #include <cpExtensions/Interaction/ImageSliceStyle.h>
   2 #include <cpExtensions/Visualization/WindowLevelImageActor.h>
   3 #include <cpExtensions/Visualization/ImageViewerActors.h>
   4 #include <vtkPropPicker.h>
   5
   6 // -------------------------------------------------------------------------
   7 cpExtensions::Interaction::ImageSliceStyle::
   8 Self* cpExtensions::Interaction::ImageSliceStyle::
   9 New( )
  10 {
  11   return( new Self( ) );
  12 }
  13
  14 // -------------------------------------------------------------------------
  15 cpExtensions::Visualization::ImageViewerActors*
  16 cpExtensions::Interaction::ImageSliceStyle::
  17 GetActors( )
  18 {
  19   return( this->m_Actors );
  20 }
  21
  22 // -------------------------------------------------------------------------
  23 const cpExtensions::Visualization::ImageViewerActors*
  24 cpExtensions::Interaction::ImageSliceStyle::
  25 GetActors( ) const
  26 {
  27   return( this->m_Actors );
  28 }
  29
  30 // -------------------------------------------------------------------------
  31 void cpExtensions::Interaction::ImageSliceStyle::
  32 SetActors( cpExtensions::Visualization::ImageViewerActors* actors )
  33 {
  34   this->m_Actors = actors;
  35   if( actors != NULL )
  36   {
  37     this->m_PropPicker = vtkSmartPointer< vtkPropPicker >::New( );
  38     this->m_PropPicker->PickFromListOn( );
  39     this->m_PropPicker->GetPickList( )->RemoveAllItems( );
  40     this->m_PropPicker->
  41       AddPickList( this->m_Actors->GetWindowLevelImageActor( ) );
  42   }
  43   else
  44     this->m_PropPicker = NULL;
  45 }
  46
  47 // -------------------------------------------------------------------------
  48 void cpExtensions::Interaction::ImageSliceStyle::
  49 OnMouseMove( )
  50 {
  51   this->Superclass::OnMouseMove( );
  52   if( this->m_Actors.GetPointer( ) == NULL )
  53     return;
  54
  55   // Slice synch
  56   static int idx[ 2 ];
  57   static double pos[ 3 ];
  58   if( this->_PickPosition( idx, pos ) )
  59   {
  60     if(
  61       this->Interactor->GetControlKey( ) == 1 &&
  62       this->GetButtonID( ) == Self::ButtonID_Left
  63       )
  64     {
  65       this->m_Actors->SetSuperCursor( pos, this->m_Actors->GetOrientation( ) == 2 );
  66       this->InvokeEvent( vtkCommand::UserEvent + 1, pos );
  67     }
  68     else
  69       this->m_Actors->SetCursor( pos, this->m_Actors->GetOrientation( ) == 2 );
  70   }
  71   else
  72     this->m_Actors->HideViewerActors( );
  73   this->Interactor->Render( );
  74 }
  75
  76 // -------------------------------------------------------------------------
  77 void cpExtensions::Interaction::ImageSliceStyle::
  78 OnMouseWheelForward( )
  79 {
  80   static int s = 0;
  81   if( this->m_Actors.GetPointer( ) == NULL )
  82     return;
  83   s = this->m_Actors->GetSliceNumber( );
  84   s += ( this->Interactor->GetShiftKey( ) == 1 )? 10: 1;
  85   this->m_Actors->SetSliceNumber( s );
  86   s = this->m_Actors->GetSliceNumber( );
  87   this->InvokeEvent( vtkCommand::UserEvent + 2, &s );
  88   this->Interactor->Render( );
  89   this->OnMouseMove( );
  90 }
  91
  92 // -------------------------------------------------------------------------
  93 void cpExtensions::Interaction::ImageSliceStyle::
  94 OnMouseWheelBackward( )
  95 {
  96   static int s = 0;
  97   if( this->m_Actors.GetPointer( ) == NULL )
  98     return;
  99   s = this->m_Actors->GetSliceNumber( );
 100   s -= ( this->Interactor->GetShiftKey( ) == 1 )? 10: 1;
 101   this->m_Actors->SetSliceNumber( s );
 102   s = this->m_Actors->GetSliceNumber( );
 103   this->InvokeEvent( vtkCommand::UserEvent + 2, &s );
 104   this->Interactor->Render( );
 105   this->OnMouseMove( );
 106 }
 107
 108 // -------------------------------------------------------------------------
 109 void cpExtensions::Interaction::ImageSliceStyle::
 110 OnChar( )
 111 {
 112 }
 113
 114 // -------------------------------------------------------------------------
 115 cpExtensions::Interaction::ImageSliceStyle::
 116 ImageSliceStyle( )
 117   : Superclass( )
 118 {
 119 }
 120
 121 // -------------------------------------------------------------------------
 122 cpExtensions::Interaction::ImageSliceStyle::
 123 ~ImageSliceStyle( )
 124 {
 125 }
 126
 127 // -------------------------------------------------------------------------
 128 bool cpExtensions::Interaction::ImageSliceStyle::
 129 _PickPosition( int idx[ 2 ], double pos[ 3 ] )
 130 {
 131   if(
 132     this->Interactor == NULL ||
 133     this->CurrentRenderer == NULL ||
 134     this->m_PropPicker.GetPointer( ) == NULL
 135     )
 136     return( false );
 137
 138   // Find the renderer where the event has been raised
 139   idx[ 0 ] = this->Interactor->GetEventPosition( )[ 0 ];
 140   idx[ 1 ] = this->Interactor->GetEventPosition( )[ 1 ];
 141   this->FindPokedRenderer( double( idx[ 0 ] ), double( idx[ 1 ] ) );
 142
 143   // Pick a 3D position
 144   int r = this->m_PropPicker->Pick(
 145     double( idx[ 0 ] ), double( idx[ 1 ] ), double( 0 ),
 146     this->CurrentRenderer
 147     );
 148   if( r == 0 )
 149     return( false );
 150   this->m_PropPicker->GetPickPosition( pos );
 151   return( true );
 152 }
 153
 154 // eof - $RCSfile$