X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=appli%2FImageMPR%2FImageMPR.cxx;h=402baff2c1b1c4a074f6da2af00f34b50fe3692b;hb=48363731d62d46ffad8ca257326cc147a92ab681;hp=c4729f65cc2efeeab9d18bdc90521b939147f8c9;hpb=e18f55af541dba9026284beb6f12ef06b12e6f47;p=cpPlugins.git

diff --git a/appli/ImageMPR/ImageMPR.cxx b/appli/ImageMPR/ImageMPR.cxx
index c4729f6..402baff 100644
--- a/appli/ImageMPR/ImageMPR.cxx
+++ b/appli/ImageMPR/ImageMPR.cxx
@@ -1,13 +1,12 @@
 #include "ImageMPR.h"
+#include "MementoState.h"
 #include "ui_ImageMPR.h"
 
 #include <vtkProperty.h>
 #include <vtkRenderWindow.h>
+#include <vtkMetaImageReader.h>
 
-#include <QDialogButtonBox>
-#include <QDoubleSpinBox>
 #include <QFileDialog>
-#include <QLabel>
 #include <QMessageBox>
 
 #ifdef _WIN32
@@ -26,13 +25,18 @@ ImageMPR::ImageMPR( QWidget* parent )
     m_UI( new Ui::ImageMPR ),
     m_ImageReaderClass( "" ),
     m_ImageWriterClass( "" ),
-    m_InputImage( NULL ),
-    m_ParametersDlg( NULL )
+    m_MeshReaderClass( "" ),
+    m_MeshWriterClass( "" ),
+    m_MeshCutterClass( "" ),
+    m_Image( NULL ),
+	m_state(0),
+	m_max_state(0)
 {
   this->m_UI->setupUi( this );
 
   // Create and associate renderers
-  this->m_MPR = new TMPR(
+  this->m_MPRObjects = vtkSmartPointer< TMPRObjects >::New( );
+  this->m_MPRObjects->SetRenderWindows(
     this->m_UI->m_XPlaneVTK->GetRenderWindow( ),
     this->m_UI->m_YPlaneVTK->GetRenderWindow( ),
     this->m_UI->m_ZPlaneVTK->GetRenderWindow( ),
@@ -48,15 +52,32 @@ ImageMPR::ImageMPR( QWidget* parent )
     this->m_UI->actionOpenInputImage, SIGNAL( triggered( ) ),
     this, SLOT( _triggered_actionOpenInputImage( ) )
     );
+  QObject::connect(
+    this->m_UI->actionOpenSegmentation, SIGNAL( triggered( ) ),
+    this, SLOT( _triggered_actionOpenSegmentation( ) )
+    );
   QObject::connect(
     this->m_UI->actionOpenInputPolyData, SIGNAL( triggered( ) ),
     this, SLOT( _triggered_actionOpenInputPolyData( ) )
     );
+  QObject::connect(
+	this->m_UI->actionUndo, SIGNAL(triggered()),
+	this, SLOT(_triggered_actionUndo())
+	);
+  QObject::connect(
+	this->m_UI->actionRedo, SIGNAL(triggered()),
+	this, SLOT(_triggered_actionRedo())
+	);
 
   // Start: load all disponible plugins
   this->_LoadPlugins(
     std::string( PLUGIN_PREFIX ) +
-    std::string( "cpPlugins." ) +
+    std::string( "cpPluginsIO." ) +
+    std::string( PLUGIN_EXT )
+    );
+  this->_LoadPlugins(
+    std::string( PLUGIN_PREFIX ) +
+    std::string( "cpPluginsBasicFilters." ) +
     std::string( PLUGIN_EXT )
     );
 }
@@ -70,34 +91,26 @@ ImageMPR::
 
   // Delete objects
   delete this->m_UI;
-  delete this->m_MPR;
-  if( this->m_ParametersDlg != NULL )
-  {
-    this->m_ParametersDlg->close( );
-    delete this->m_ParametersDlg;
-
-  } // fi
 }
 
 // -------------------------------------------------------------------------
 bool ImageMPR::
 _LoadPlugins( const std::string& filename )
 {
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+  this->setEnabled( false );
+
   this->m_ImageReaderClass = "";
   this->m_ImageWriterClass = "";
   this->m_MeshReaderClass = "";
   this->m_MeshWriterClass = "";
-  this->m_ImageToImageFilters.clear( );
-  this->m_ImageToMeshFilters.clear( );
+  this->m_MeshCutterClass = "";
+  this->m_UI->MenuImageToImage->clear( );
+  this->m_UI->MenuImageToMesh->clear( );
 
-  this->m_Plugins.UnloadAll( );
   if( !( this->m_Plugins.Load( filename ) ) )
-  {
-    this->m_Plugins.UnloadAll( );
     return( false );
 
-  } // fi
-
   typedef TPluginsInterface::TClasses _TClasses;
   _TClasses::const_iterator cIt = this->m_Plugins.GetClasses( ).begin( );
   for( ; cIt != this->m_Plugins.GetClasses( ).end( ); ++cIt )
@@ -114,9 +127,13 @@ _LoadPlugins( const std::string& filename )
       this->m_MeshReaderClass = name;
     else if( category == "MeshWriter" )
       this->m_MeshWriterClass = name;
+    else if( category == "MeshToMeshFilter" )
+    {
+      if( name.find_last_of( "Cutter" ) != std::string::npos )
+        this->m_MeshCutterClass = name;
+    }
     else if( category == "ImageToImageFilter" )
     {
-      this->m_ImageToImageFilters.insert( name );
       QAction* action =
         this->m_UI->MenuImageToImage->addAction( QString( name.c_str( ) ) );
       QObject::connect(
@@ -126,7 +143,6 @@ _LoadPlugins( const std::string& filename )
     }
     else if( category == "ImageToMeshFilter" )
     {
-      this->m_ImageToMeshFilters.insert( name );
       QAction* action =
         this->m_UI->MenuImageToMesh->addAction( QString( name.c_str( ) ) );
       QObject::connect(
@@ -137,160 +153,98 @@ _LoadPlugins( const std::string& filename )
     } // fi
 
   } // rof
+  QApplication::restoreOverrideCursor( );
+  this->setEnabled( true );
+
   return( true );
 }
 
 // -------------------------------------------------------------------------
-bool ImageMPR::
-_ParametersDialog( TPluginFilter* filter )
+std::string ImageMPR::
+_LoadImage( TPluginImage::Pointer& image )
 {
-  if( this->m_ParametersDlg != NULL )
-  { 
-    this->m_ParametersDlg->close( );
-    delete this->m_ParametersDlg;
+  std::string ret = "";
+  image = NULL;
 
-  } // fi
-  this->m_ParametersDlg = new QDialog( NULL );
-  this->m_ParametersDlg->setWindowFlags( Qt::FramelessWindowHint ); 
-  this->m_ParametersDlg->setWindowFlags( Qt::WindowTitleHint );
-
-  QGridLayout* gridLayout = new QGridLayout( this->m_ParametersDlg );
-  QVBoxLayout* verticalLayout = new QVBoxLayout( );
-
-  // Put a title
-  QLabel* title = new QLabel( this->m_ParametersDlg );
-  title->setText( filter->GetClassName( ).c_str( ) );
-  verticalLayout->addWidget( title );
-
-  // Put values
-  TParameters parameters = filter->GetDefaultParameters( );
-  std::vector< std::string > names = parameters.GetParameters( );
-  std::vector< std::string >::const_iterator nIt = names.begin( );
-  for( ; nIt != names.end( ); ++nIt )
+  // Get a reader from loaded plugins
+  TPluginFilter::Pointer reader =
+    this->m_Plugins.CreateProcessObject( this->m_ImageReaderClass );
+  if( reader.IsNotNull( ) )
   {
-    std::string par_name = *nIt;
-    TParameters::Type par_type = parameters.GetParameterType( par_name );
-
-    /* TODO
-       enum Type
-       {
-       String = 0,
-       Bool,
-       Int,
-       Uint,
-       Real,
-       Index,
-       Point,
-       StringList,
-       BoolList,
-       IntList,
-       UintList,
-       RealList,
-       IndexList,
-       PointList,
-       NoType
-       };
-    */
-    QHBoxLayout* horizontalLayout = new QHBoxLayout( );
-    QLabel* label = new QLabel( this->m_ParametersDlg );
-    label->setText( QString( par_name.c_str( ) ) );
-    horizontalLayout->addWidget( label );
-
-    QWidget* w_input = NULL;
-    if( par_type == TParameters::Uint )
-    {
-      QSpinBox* v_uint =
-        new QSpinBox( this->m_ParametersDlg );
-      v_uint->setMinimum( -100 );
-      v_uint->setMaximum( std::numeric_limits< int >::max( ) );
-      v_uint->setValue( parameters.GetValueAsUint( par_name ) );
-      v_uint->setObjectName( QString( par_name.c_str( ) ) );
-      w_input = v_uint;
-    }
-    else if( par_type == TParameters::Int )
-    {
-      QSpinBox* v_int =
-        new QSpinBox( this->m_ParametersDlg );
-      v_int->setMinimum( -std::numeric_limits< int >::max( ) );
-      v_int->setMaximum( std::numeric_limits< int >::max( ) );
-      v_int->setValue( parameters.GetValueAsInt( par_name ) );
-      v_int->setObjectName( QString( par_name.c_str( ) ) );
-      w_input = v_int;
-    }
-    else if( par_type == TParameters::Real )
+    if( reader->ExecConfigurationDialog( this ) )
     {
-      QDoubleSpinBox* v_double =
-        new QDoubleSpinBox( this->m_ParametersDlg );
-      v_double->setDecimals( 3 );
-      v_double->setMinimum( -( std::numeric_limits< double >::max( ) ) );
-      v_double->setMaximum( std::numeric_limits< double >::max( ) );
-      v_double->setValue( parameters.GetValueAsReal( par_name ) );
-      v_double->setObjectName( QString( par_name.c_str( ) ) );
-      w_input = v_double;
+      // Block application
+      QApplication::setOverrideCursor( Qt::WaitCursor );
+      this->setEnabled( false );
 
-    } // fi
+      // Execute and get error message, if any
+      ret = reader->Update( );
 
-    if( w_input != NULL )
-    {
-      horizontalLayout->addWidget( w_input );
-      verticalLayout->addLayout( horizontalLayout );
+      // Assign fresh image, if any
+      if( ret == "" )
+      {
+        image = reader->GetOutput< TPluginImage >( 0 );
+        reader->DisconnectOutputs( );
+
+      } // fi
+
+      // Unblock application
+      QApplication::restoreOverrideCursor( );
+      this->setEnabled( true );
 
     } // fi
+  }
+  else
+    ret = "No suitable reader object found in loaded plugins.";
+  
+  return( ret );
+}
 
-  } // rof
+// -------------------------------------------------------------------------
+std::string ImageMPR::
+_ConfigureMeshActors( )
+{
+  if( this->m_Mesh.IsNull( ) )
+    return( "Valid mesh not found." );
 
-  // Add buttons
-  QDialogButtonBox* bb = new QDialogButtonBox(
-    QDialogButtonBox::Ok | QDialogButtonBox::Cancel
-    );
-  QObject::connect(
-    bb, SIGNAL( accepted( ) ), this->m_ParametersDlg, SLOT( accept( ) )
-    );
-  QObject::connect(
-    bb, SIGNAL( rejected( ) ), this->m_ParametersDlg, SLOT( reject( ) )
-    );
-  verticalLayout->addWidget( bb );
-  gridLayout->addLayout( verticalLayout, 0, 0, 1, 1 );
+  this->m_Mesh->CreateVTKActor( );
+  vtkActor* vtk_actor = this->m_Mesh->GetVTKActor( );
+  if( vtk_actor != NULL )
+  {
+    this->m_MPRObjects->Get3DRenderer( )->AddActor( vtk_actor );
+    this->m_MPRObjects->Render( 4 );
 
-  // Execute
-  QMetaObject::connectSlotsByName( this->m_ParametersDlg );
-  if( !( this->m_ParametersDlg->exec( ) ) )
-    return( false );
+  } // fi
+
+  TMPRObjects::TMPRActors* mprActors = this->m_MPRObjects->GetMPRActors( );
 
-  // Get values back
-  nIt = names.begin( );
-  for( ; nIt != names.end( ); ++nIt )
+  std::string err = "";
+  for( unsigned int i = 0; i < 3; ++i )
   {
-    std::string par_name = *nIt;
-    TParameters::Type par_type = parameters.GetParameterType( par_name );
-    if( par_type == TParameters::Uint )
-    {
-      QSpinBox* v_uint =
-        this->m_ParametersDlg->findChild< QSpinBox* >( par_name.c_str( ) );
-      if( v_uint != NULL )
-        parameters.SetValueAsUint( par_name, v_uint->value( ) );
-    }
-    else if( par_type == TParameters::Int )
+    this->m_Cutters[ i ] = this->m_Plugins.CreateProcessObject( this->m_MeshCutterClass );
+    this->m_Planes[ i ] = TPluginImplicitFunction::New( );
+    this->m_Planes[ i ]->SetFunction( mprActors->GetSliceActors( i )->GetPlaneFunction( ) );
+    this->m_Cutters[ i ]->SetInput( 0, this->m_Mesh );
+    this->m_Cutters[ i ]->SetInput( 1, this->m_Planes[ i ] );
+    std::string lerr = this->m_Cutters[ i ]->Update( );
+    if( lerr == "" )
     {
-      QSpinBox* v_int =
-        this->m_ParametersDlg->findChild< QSpinBox* >( par_name.c_str( ) );
-      if( v_int != NULL )
-        parameters.SetValueAsInt( par_name, v_int->value( ) );
-    }
-    else if( par_type == TParameters::Real )
-    {
-      QDoubleSpinBox* v_double =
-        this->m_ParametersDlg->findChild< QDoubleSpinBox* >(
-          par_name.c_str( )
-          );
-      if( v_double != NULL )
-        parameters.SetValueAsReal( par_name, v_double->value( ) );
+      this->m_Cutters[ i ]->GetOutput< TPluginMesh >( 0 )->CreateVTKActor( );
+      vtkActor* actor = this->m_Cutters[ i ]->GetOutput< TPluginMesh >( 0 )->GetVTKActor( );
+      mprActors->GetSliceActors( i )->AddActor( this->m_Cutters[ i ]->GetVTK< vtkAlgorithm >( ), actor );
+      if( i == 0 )
+        this->m_MPRObjects->GetXRenderer( )->AddActor( actor );
+      else if( i == 1 )
+        this->m_MPRObjects->GetYRenderer( )->AddActor( actor );
+      else if( i == 2 )
+        this->m_MPRObjects->GetZRenderer( )->AddActor( actor );
 
     } // fi
+    err += lerr;
 
   } // rof
-  filter->SetParameters( parameters );
-  return( true );
+  this->m_MPRObjects->RenderAll( );
+  return( err );
 }
 
 // -------------------------------------------------------------------------
@@ -319,42 +273,67 @@ _triggered_actionOpenPlugins( )
 void ImageMPR::
 _triggered_actionOpenInputImage( )
 {
-  // Show dialog and check if it was accepted
-  QFileDialog dialog( this );
-  dialog.setFileMode( QFileDialog::ExistingFiles );
-  dialog.setDirectory( tr( "." ) );
-  dialog.setNameFilter(
-    tr( "Medical image files (*.mhd *.bin *.dcm *.nrri);;All files (*)" )
-    );
-  dialog.setDefaultSuffix( tr( "mhd" ) );
-  if( !( dialog.exec( ) ) )
-    return;
-  
-  this->m_InputImage = NULL;
+  // Read image
+  std::string err = this->_LoadImage( this->m_Image );
+  if( err == "" )
+  {
+    vtkImageData* vtk_id = this->m_Image->GetVTK< vtkImageData >( );
+    if( vtk_id != NULL )
+    {
+      this->m_MPRObjects->SetImage( vtk_id );
+      this->m_MPRObjects->ActivateInteractors( );
+      this->m_MPRObjects->ResetCameras( );
+      this->m_MPRObjects->RenderAll( );
 
-  // Get a reader from plugins
-  TPluginFilter::Pointer reader =
-    this->m_Plugins.CreateProcessObject( this->m_ImageReaderClass );
+	  MementoState(m_state, this->m_Image);	 
+	  this->m_state++;
+    }
+    else
+      QMessageBox::critical(
+        this,
+        tr( "Error message" ),
+        tr( "Read image does not have a valid VTK converter." )
+        );
+  }
+  else
+    QMessageBox::critical(
+      this,
+      tr( "Error reading single image" ),
+      tr( err.c_str( ) )
+      );
+}
 
-  // Configure reader
-  TParameters reader_params = reader->GetDefaultParameters( );
-  QStringList q_fnames = dialog.selectedFiles( );
-  QStringList::const_iterator qIt = q_fnames.begin( );
-  for( ; qIt != q_fnames.end( ); ++qIt )
-    reader_params.AddValueToStringList( "FileNames", qIt->toStdString( ) );
-  reader->SetParameters( reader_params );
+// -------------------------------------------------------------------------
+void ImageMPR::
+_triggered_actionOpenSegmentation( )
+{
+  if( this->m_Image.IsNull( ) )
+  {
+    QMessageBox::critical(
+      this,
+      tr( "Error message" ),
+      tr( "Before reading a segmentation, first load a raw image." )
+      );
+    return;
 
-  // Execute and get error message, if any
-  std::string err = reader->Update( );
+  } // fi
 
-  // Assign fresh image, if any
+  // Read image
+  std::string err = this->_LoadImage( this->m_Segmentation );
   if( err == "" )
   {
-    this->m_InputImage =
-      dynamic_cast< TPluginImage* >( reader->GetOutput( 0 ) );
-    reader->DisconnectOutputs( );
-    if( this->m_InputImage.IsNotNull( ) )
-      this->m_MPR->SetImage( this->m_InputImage->GetVTKImageData( ) );
+    vtkImageData* vtk_id = this->m_Segmentation->GetVTK< vtkImageData >( );
+    if( vtk_id != NULL )
+    {
+      this->m_MPRObjects->AddAuxiliaryImage( vtk_id );
+      this->m_MPRObjects->RenderAll( );
+    }
+    else
+      QMessageBox::critical(
+        this,
+        tr( "Error message" ),
+        tr( "Read image does not have a valid VTK converter." )
+        );
   }
   else
     QMessageBox::critical(
@@ -368,64 +347,59 @@ _triggered_actionOpenInputImage( )
 void ImageMPR::
 _triggered_actionOpenInputPolyData( )
 {
-  /*
-  // Show dialog and check if it was accepted
-  QFileDialog dialog( this );
-  dialog.setFileMode( QFileDialog::ExistingFile );
-  dialog.setDirectory( "." );
-  dialog.setNameFilter( tr( "VTK file (*.vtk);;All files (*)" ) );
-  dialog.setDefaultSuffix( tr( "vtk" ) );
-  if( !( dialog.exec( ) ) )
-    return;
-  
-  std::string fname = dialog.selectedFiles( ).at( 0 ).toStdString( );
-
-  this->m_InputMesh = NULL;
+  this->m_Mesh = NULL;
 
   // Get a reader from plugins
   TPluginFilter::Pointer reader =
-    this->m_Plugins.CreateProcessObject(
-      this->m_BaseClasses[ "MeshReader" ]
-      );
+    this->m_Plugins.CreateProcessObject( this->m_MeshReaderClass );
 
-  // Configure plugin
-  TParameters reader_params = reader->GetDefaultParameters( );
-  reader_params.SetValueAsString( "FileName", fname );
-  reader->SetParameters( reader_params );
-
-  // Execute and get error message, if any
-  std::string err = reader->Update( );
-
-  // Assign fresh image, if any
-  if( err == "" )
+  if( reader.IsNotNull( ) )
   {
-    this->m_InputMesh =
-      dynamic_cast< TPluginMesh* >( reader->GetOutput( 0 ) );
-    reader->DisconnectOutputs( );
-    if( this->m_InputMesh.IsNotNull( ) )
+    // Configure reader
+    if( reader->ExecConfigurationDialog( this ) )
     {
-      this->m_InputMeshMapper = vtkSmartPointer< vtkPolyDataMapper >::New( );
-      this->m_InputMeshMapper->SetInputData( this->m_InputMesh->GetVTKPolyData( ) );
-      this->m_InputMeshActor = vtkSmartPointer< vtkActor >::New( );
-      this->m_InputMeshActor->SetMapper( this->m_InputMeshMapper );
-      this->m_MPR->Add3DActor( this->m_InputMeshActor );
+      // Execute and get error message, if any
+      QApplication::setOverrideCursor( Qt::WaitCursor );
+      this->setEnabled( false );
+      std::string err = reader->Update( );
+      QApplication::restoreOverrideCursor( );
+      this->setEnabled( true );
+
+      // Assign fresh mesh, if any
+      if( err == "" )
+      {
+        this->m_Mesh = reader->GetOutput< TPluginMesh >( 0 );
+        reader->DisconnectOutputs( );
+        err = this->_ConfigureMeshActors( );
+        if( err != "" )
+          QMessageBox::critical(
+            this,
+            tr( "Error message" ),
+            tr( err.c_str( ) )
+            );
+      }
+      else
+        QMessageBox::critical(
+          this,
+          tr( "Error reading mesh" ),
+          tr( err.c_str( ) )
+          );
 
     } // fi
   }
   else
     QMessageBox::critical(
       this,
-      tr( "Error reading polydata" ),
-      tr( err.c_str( ) )
+      tr( "Error reading single mesh" ),
+      tr( "No suitable mesh reader found in loaded plugins." )
       );
-  */
 }
 
 // -------------------------------------------------------------------------
 void ImageMPR::
 _triggered_actionImageToImage( )
 {
-  if( this->m_InputImage.IsNull( ) )
+  if( this->m_Image.IsNull( ) )
     return;
 
   // Get filter name
@@ -437,27 +411,51 @@ _triggered_actionImageToImage( )
   // Configure filter
   TPluginFilter::Pointer filter =
     this->m_Plugins.CreateProcessObject( name );
-  if( !( this->_ParametersDialog( filter ) ) )
+  bool dlg_ok = filter->ExecConfigurationDialog( NULL );
+  if( !dlg_ok )
     return;
 
   // Execute filter
-  filter->SetInput( 0, this->m_InputImage );
-  filter->Update( );
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+  this->setEnabled( false );
+  filter->SetInput( 0, this->m_Image );
+  std::string err = filter->Update( );
+  QApplication::restoreOverrideCursor( );
+  this->setEnabled( true );
 
   // Update image
-  TPluginImage* result =
-    dynamic_cast< TPluginImage* >( filter->GetOutput( 0 ) );
-  result->DisconnectPipeline( );
-  this->m_InputImage = result;
-  if( this->m_InputImage.IsNotNull( ) )
-    this->m_MPR->SetImage( this->m_InputImage->GetVTKImageData( ) );
+  if( err == "" )
+  {
+    TPluginImage* result = filter->GetOutput< TPluginImage >( 0 );
+    result->DisconnectPipeline( );
+    this->m_Image = result;
+    if( this->m_Image.IsNotNull( ) )
+      this->m_MPRObjects->SetImage(
+        this->m_Image->GetVTK< vtkImageData >( )
+
+		);
+	
+	
+	MementoState(this->m_state, this->m_Image);
+	this->m_state++;
+	if (this->m_state > this->m_max_state)
+	{
+		this->m_max_state = this->m_state;
+	}
+  }
+  else
+    QMessageBox::critical(
+      this,
+      tr( "Error executing filter" ),
+      tr( err.c_str( ) )
+      );
 }
 
 // -------------------------------------------------------------------------
 void ImageMPR::
 _triggered_actionImageToMesh( )
 {
-  if( this->m_InputImage.IsNull( ) )
+  if( this->m_Image.IsNull( ) )
     return;
 
   // Get filter name
@@ -465,6 +463,88 @@ _triggered_actionImageToMesh( )
   if( action == NULL )
     return;
   std::string name = action->text( ).toStdString( );
+
+  // Configure filter
+  TPluginFilter::Pointer filter =
+    this->m_Plugins.CreateProcessObject( name );
+  bool dlg_ok = filter->ExecConfigurationDialog( NULL );
+  if( !dlg_ok )
+    return;
+
+  // Execute filter
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+  this->setEnabled( false );
+  filter->SetInput( 0, this->m_Image );
+  std::string err = filter->Update( );
+  QApplication::restoreOverrideCursor( );
+  this->setEnabled( true );
+
+  // Update image
+  if( err == "" )
+  {
+    TPluginMesh* result = filter->GetOutput< TPluginMesh >( 0 );
+    result->DisconnectPipeline( );
+    this->m_Mesh = result;
+    err = this->_ConfigureMeshActors( );
+    if( err != "" )
+      QMessageBox::critical(
+        this,
+        tr( "Error message" ),
+        tr( err.c_str( ) )
+        );
+  }
+  else
+    QMessageBox::critical(
+      this,
+      tr( "Error executing filter" ),
+      tr( err.c_str( ) )
+      );
+}
+
+// -------------------------------------------------------------------------
+void ImageMPR::
+_triggered_actionUndo()
+{
+	MementoState memento = MementoState();
+    
+	if (this->m_state>1)
+	{
+		this->m_state--;
+		this->m_MPRObjects->SetImage(
+			memento.getMemento(this->m_state)->GetOutput()
+			);
+	} else
+	{
+		QMessageBox::warning(
+			this,
+			tr("message"),
+			tr("No history to undo")
+			);
+	}
+
+}
+
+// -------------------------------------------------------------------------
+void ImageMPR::
+_triggered_actionRedo()
+{
+	MementoState memento = MementoState();
+		if (this->m_state + 1 <= m_max_state)
+		{
+			this->m_state++;
+			this->m_MPRObjects->SetImage(
+				memento.getMemento(this->m_state)->GetOutput()
+				);
+		} else
+		{
+			QMessageBox::warning(
+				this,
+				tr("message"),
+				tr("No history to redo")
+				);
+		}
+	
 }
+	
 
 // eof - $RCSfile$