--- /dev/null
+// Copyright (C) 2007-2011 CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+// File : SMESH_CellLabelActor.cxx
+// Author : Roman NIKOLAEV
+// Module : SMESH
+//
+#include "SMESH_CellLabelActor.h"
+
+#include <VTKViewer_TransformFilter.h>
+#include <VTKViewer_CellCenters.h>
+
+#include <vtkObjectFactory.h>
+#include <vtkCallbackCommand.h>
+#include <vtkMaskPoints.h>
+#include <vtkSelectVisiblePoints.h>
+#include <vtkLabeledDataMapper.h>
+#include <vtkActor2D.h>
+#include <vtkTextProperty.h>
+#include <vtkPointData.h>
+#include <vtkProperty2D.h>
+#include <vtkRenderer.h>
+#include <vtkPolyData.h>
+#include <vtkCellData.h>
+
+vtkStandardNewMacro(SMESH_CellLabelActor);
+
+/*!
+ Constructor.
+*/
+SMESH_CellLabelActor::SMESH_CellLabelActor() {
+ //Definition of cells numbering pipeline
+ //---------------------------------------
+ myCellsNumDataSet = vtkPolyData::New();
+
+ myCellCenters = VTKViewer_CellCenters::New();
+ myCellCenters->SetInput(myCellsNumDataSet);
+
+ myClsMaskPoints = vtkMaskPoints::New();
+ myClsMaskPoints->SetInput(myCellCenters->GetOutput());
+ myClsMaskPoints->SetOnRatio(1);
+
+ myClsSelectVisiblePoints = vtkSelectVisiblePoints::New();
+ myClsSelectVisiblePoints->SetInput(myClsMaskPoints->GetOutput());
+ myClsSelectVisiblePoints->SelectInvisibleOff();
+ myClsSelectVisiblePoints->SetTolerance(0.1);
+
+ myClsLabeledDataMapper = vtkLabeledDataMapper::New();
+ myClsLabeledDataMapper->SetInput(myClsSelectVisiblePoints->GetOutput());
+
+ myClsLabeledDataMapper->SetLabelFormat("%d");
+ myClsLabeledDataMapper->SetLabelModeToLabelScalars();
+
+ vtkTextProperty* aClsTextProp = vtkTextProperty::New();
+ aClsTextProp->SetFontFamilyToTimes();
+ static int aCellsFontSize = 12;
+ aClsTextProp->SetFontSize(aCellsFontSize);
+ aClsTextProp->SetBold(1);
+ aClsTextProp->SetItalic(0);
+ aClsTextProp->SetShadow(0);
+ myClsLabeledDataMapper->SetLabelTextProperty(aClsTextProp);
+ aClsTextProp->Delete();
+
+ myIsCellsLabeled = false;
+
+ myCellsLabels = vtkActor2D::New();
+ myCellsLabels->SetMapper(myClsLabeledDataMapper);
+ myCellsLabels->GetProperty()->SetColor(0,1,0);
+ myCellsLabels->SetVisibility(myIsCellsLabeled);
+
+ vtkCallbackCommand* callBackCommand = vtkCallbackCommand::New();
+ callBackCommand->SetClientData(this);
+ callBackCommand->SetCallback(SMESH_CellLabelActor::ProcessEvents);
+
+ myTransformFilter->AddObserver("VTKViewer_TransformFilter::TransformationFinished",
+ callBackCommand);
+ callBackCommand->Delete();
+}
+
+
+/*!
+ Destructor.
+*/
+SMESH_CellLabelActor::~SMESH_CellLabelActor() {
+ //Deleting of cells numbering pipeline
+ //---------------------------------------
+ myCellsNumDataSet->Delete();
+
+ myClsLabeledDataMapper->RemoveAllInputs();
+ myClsLabeledDataMapper->Delete();
+
+ // commented: porting to vtk 5.0
+ // myClsSelectVisiblePoints->UnRegisterAllOutputs();
+ myClsSelectVisiblePoints->Delete();
+
+ // commented: porting to vtk 5.0
+ // myClsMaskPoints->UnRegisterAllOutputs();
+ myClsMaskPoints->Delete();
+
+ // commented: porting to vtk 5.0
+ // myCellCenters->UnRegisterAllOutputs();
+ myCellCenters->Delete();
+
+ myCellsLabels->Delete();
+}
+
+
+void SMESH_CellLabelActor::SetCellsLabeled(bool theIsCellsLabeled) {
+ myTransformFilter->Update();
+ vtkPolyData* aGrid = vtkPolyData::SafeDownCast(myTransformFilter->GetOutput());
+ if(!aGrid)
+ return;
+
+ myIsCellsLabeled = theIsCellsLabeled && aGrid->GetNumberOfPoints();
+ if(myIsCellsLabeled){
+ myCellsNumDataSet->ShallowCopy(aGrid);
+ vtkDataSet *aDataSet = myCellsNumDataSet;
+ int aNbElem = aDataSet->GetNumberOfCells();
+ vtkIntArray *anArray = vtkIntArray::New();
+ anArray->SetNumberOfValues(aNbElem);
+ for(int anId = 0; anId < aNbElem; anId++){
+ int aSMDSId = GetElemObjId(anId);
+ anArray->SetValue(anId,aSMDSId);
+ }
+ aDataSet->GetCellData()->SetScalars(anArray);
+ myCellCenters->SetInput(aDataSet);
+ myCellsLabels->SetVisibility(GetVisibility());
+ }else{
+ myCellsLabels->SetVisibility(false);
+ }
+}
+
+void SMESH_CellLabelActor::SetVisibility(int theMode)
+{
+ SMESH_DeviceActor::SetVisibility(theMode);
+ myCellsLabels->VisibilityOff();
+ if(myIsCellsLabeled && theMode)
+ myCellsLabels->VisibilityOn();
+}
+
+void SMESH_CellLabelActor::AddToRender(vtkRenderer* theRenderer)
+{
+ SMESH_DeviceActor::AddToRender(theRenderer);
+ myClsSelectVisiblePoints->SetRenderer(theRenderer);
+ theRenderer->AddActor2D(myCellsLabels);
+}
+
+void SMESH_CellLabelActor::RemoveFromRender(vtkRenderer* theRenderer)
+{
+ theRenderer->RemoveActor(myCellsLabels);
+ SMESH_DeviceActor::RemoveFromRender(theRenderer);
+}
+
+void SMESH_CellLabelActor::UpdateLabels() {
+ if(myIsCellsLabeled)
+ SetCellsLabeled(myIsCellsLabeled);
+}
+
+
+void SMESH_CellLabelActor::ProcessEvents(vtkObject* vtkNotUsed(theObject),
+ unsigned long theEvent,
+ void* theClientData,
+ void* vtkNotUsed(theCallData)) {
+ SMESH_CellLabelActor* self = reinterpret_cast<SMESH_CellLabelActor*>(theClientData);
+ if(self)
+ self->UpdateLabels();
+}
