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cgal
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add error observer to vtk Plugin 

as suggested here
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/ObserveError

does not work yet
This commit is contained in:
Jane Tournois 2016-02-12 11:47:35 +01:00
parent 011b6cd473
commit a8d7c8fc5e
1 changed files with 77 additions and 2 deletions
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79
Polyhedron/demo/Polyhedron/Plugins/IO/VTK_io_plugin.cpp
View File

@ -61,9 +61,56 @@
#include <vtkPoints.h>
#include <vtkCellArray.h>
#include <vtkType.h>
#include <vtkCommand.h>
namespace CGAL{
class ErrorObserverVtk : public vtkCommand
{
public:
ErrorObserverVtk() :
Error(false),
Warning(false),
ErrorMessage(""),
WarningMessage("") {}
static ErrorObserverVtk *New() { return new ErrorObserverVtk; }
bool GetError() const { return this->Error; }
bool GetWarning() const { return this->Warning; }
std::string GetErrorMessage() { return ErrorMessage; }
std::string GetWarningMessage() { return WarningMessage; }
void Clear()
{
this->Error = false;
this->Warning = false;
this->ErrorMessage = "";
this->WarningMessage = "";
}
virtual void Execute(vtkObject *vtkNotUsed(caller),
unsigned long event,
void *calldata)
{
switch (event)
{
case vtkCommand::ErrorEvent:
ErrorMessage = static_cast<char *>(calldata);
this->Error = true;
break;
case vtkCommand::WarningEvent:
WarningMessage = static_cast<char *>(calldata);
this->Warning = true;
break;
}
}
private:
bool Error;
bool Warning;
std::string ErrorMessage;
std::string WarningMessage;
};
template <typename TM, typename VertexMap, typename FaceMap>
bool vtkPolyData_to_polygon_mesh(vtkPolyData* poly_data,
TM& tmesh,
@ -238,13 +285,20 @@ public:
&& fileinfo.suffix().toLower() != "vtp")
return 0;
std::string input_filename = fileinfo.absoluteFilePath().toStdString();
Polyhedron poly;
boost::unordered_map<vtkIdType, vertex_descriptor> vmap;
boost::unordered_map<vtkIdType, face_descriptor> fmap;
// Try to read .vtk in a polyhedron
vtkSmartPointer<vtkPolyData> data;
std::string input_filename = fileinfo.absoluteFilePath().toStdString();
vtkSmartPointer<vtkPolyData> data
= vtkSmartPointer<vtkPolyData>::New();
vtkSmartPointer<CGAL::ErrorObserverVtk> errorObserver =
vtkSmartPointer<CGAL::ErrorObserverVtk>::New();
data->AddObserver(vtkCommand::ErrorEvent, errorObserver);
data->AddObserver(vtkCommand::WarningEvent, errorObserver);
char last_char = input_filename[input_filename.size() - 1];
if (last_char != 'p' && last_char != 'P')
@ -263,6 +317,27 @@ public:
reader->Update();
data = reader->GetOutput();
}
if (errorObserver->GetError())
{
QMessageBox msgBox;
msgBox.setText("This type of data can't be opened");
msgBox.setInformativeText(QString("VTK error message :\n")
.append(QString(errorObserver->GetErrorMessage().data())));
msgBox.setStandardButtons(QMessageBox::Ok);
msgBox.setIcon(QMessageBox::Critical);
msgBox.exec();
return new Scene_polyhedron_item();
}
if (errorObserver->GetWarning())
{
QMessageBox msgBox;
msgBox.setText("This file generates a warning");
msgBox.setInformativeText(QString("VTK warning message :\n")
.append(QString(errorObserver->GetWarningMessage().data())));
msgBox.setStandardButtons(QMessageBox::Ok);
msgBox.setIcon(QMessageBox::Warning);
msgBox.exec();
}
if (CGAL::vtkPolyData_to_polygon_mesh(data, poly, vmap, fmap))
{