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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageReader2Factory.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkImageReader2Factory.h"
#include "vtkBMPReader.h"
#include "vtkGESignaReader.h"
#include "vtkImageReader2.h"
#include "vtkImageReader2Collection.h"
#include "vtkJPEGReader.h"
#include "vtkObjectFactory.h"
#include "vtkObjectFactoryCollection.h"
#include "vtkPNGReader.h"
#include "vtkPNMReader.h"
#include "vtkSLCReader.h"
#include "vtkTIFFReader.h"
#include "vtkMetaImageReader.h"
// Destroying the prototype readers requires information keys.
// Include the manager here to make sure the keys are not destroyed
// until after the AvailableReaders singleton has been destroyed.
#include "vtkFilteringInformationKeyManager.h"
vtkStandardNewMacro(vtkImageReader2Factory);
class vtkImageReader2FactoryCleanup
{
public:
inline void Use()
{
}
~vtkImageReader2FactoryCleanup()
{
if(vtkImageReader2Factory::AvailableReaders)
{
vtkImageReader2Factory::AvailableReaders->Delete();
vtkImageReader2Factory::AvailableReaders = 0;
}
}
};
static vtkImageReader2FactoryCleanup vtkImageReader2FactoryCleanupGlobal;
vtkImageReader2Collection* vtkImageReader2Factory::AvailableReaders;
void vtkImageReader2Factory::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
os << indent << "Available Readers : ";
if(AvailableReaders)
{
AvailableReaders->PrintSelf(os, indent);
}
else
{
os << "None.";
}
}
vtkImageReader2Factory::vtkImageReader2Factory()
{
}
vtkImageReader2Factory::~vtkImageReader2Factory()
{
}
void vtkImageReader2Factory::RegisterReader(vtkImageReader2* r)
{
vtkImageReader2Factory::InitializeReaders();
AvailableReaders->AddItem(r);
}
vtkImageReader2* vtkImageReader2Factory::CreateImageReader2(const char* path)
{
vtkImageReader2Factory::InitializeReaders();
vtkImageReader2* ret;
vtkCollection* collection = vtkCollection::New();
vtkObjectFactory::CreateAllInstance("vtkImageReaderObject",
collection);
vtkObject* o;
// first try the current registered object factories to see
// if one of them can
for(collection->InitTraversal(); (o = collection->GetNextItemAsObject()); )
{
if(o)
{
ret = vtkImageReader2::SafeDownCast(o);
if(ret && ret->CanReadFile(path))
{
return ret;
}
}
}
// get rid of the collection
collection->Delete();
vtkCollectionSimpleIterator sit;
for(vtkImageReader2Factory::AvailableReaders->InitTraversal(sit);
(ret = vtkImageReader2Factory::AvailableReaders->GetNextImageReader2(sit));)
{
if(ret->CanReadFile(path))
{
// like a new call
return ret->NewInstance();
}
}
return 0;
}
void vtkImageReader2Factory::InitializeReaders()
{
if(vtkImageReader2Factory::AvailableReaders)
{
return;
}
vtkImageReader2FactoryCleanupGlobal.Use();
vtkImageReader2Factory::AvailableReaders = vtkImageReader2Collection::New();
vtkImageReader2* reader;
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkPNGReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkPNMReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkTIFFReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkBMPReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkSLCReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkJPEGReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkGESignaReader::New()));
reader->Delete();
vtkImageReader2Factory::AvailableReaders->
AddItem((reader = vtkMetaImageReader::New()));
reader->Delete();
}
void vtkImageReader2Factory::GetRegisteredReaders(vtkImageReader2Collection* collection)
{
vtkImageReader2Factory::InitializeReaders();
// get all dynamic readers
vtkObjectFactory::CreateAllInstance("vtkImageReaderObject",
collection);
// get the current registered readers
vtkImageReader2* ret;
vtkCollectionSimpleIterator sit;
for(vtkImageReader2Factory::AvailableReaders->InitTraversal(sit);
(ret = vtkImageReader2Factory::AvailableReaders->GetNextImageReader2(sit));)
{
collection->AddItem(ret);
}
}
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