cxDataReaderWriter.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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   may be used to endorse or promote products derived from this software 
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#ifndef CXDATAREADERWRITER_H_
#define CXDATAREADERWRITER_H_

#include "cxResourceExport.h"
#include "cxPrecompiledHeader.h"

#include <map>
#include <set>
#include <string>
#include <QMutex>
#include <vector>
#include "cxImage.h"
#include "cxMesh.h"
#include <QFileInfo>
#include "boost/scoped_ptr.hpp"

namespace cx
{
typedef boost::shared_ptr<class SpaceProvider> SpaceProviderPtr;

class cxResource_EXPORT StaticMutexVtkLocker
{
public:
        StaticMutexVtkLocker();
        ~StaticMutexVtkLocker();
private:
        static boost::shared_ptr<QMutex> mMutex;
};


class cxResource_EXPORT DataReader
{
public:
        virtual ~DataReader()
        {
        }
        virtual bool canLoad(const QString& type, const QString& filename) = 0;
        virtual DataPtr load(const QString& uid, const QString& filename) = 0;
        virtual vtkImageDataPtr loadVtkImageData(QString filename) { return vtkImageDataPtr(); }
        virtual vtkPolyDataPtr loadVtkPolyData(QString filename) { return vtkPolyDataPtr(); }
        virtual QString canLoadDataType() const =0;
        virtual bool readInto(DataPtr data, QString path) = 0;

};
typedef boost::shared_ptr<DataReader> DataReaderPtr;

class cxResource_EXPORT MetaImageReader: public DataReader
{
public:
        virtual ~MetaImageReader()
        {
        }
        virtual bool canLoad(const QString& type, const QString& filename)
        {
                QString fileType = QFileInfo(filename).suffix();
                return (fileType.compare("mhd", Qt::CaseInsensitive) == 0 || fileType.compare("mha", Qt::CaseInsensitive) == 0);
        }
        virtual QString canLoadDataType() const { return "image"; }
        virtual bool readInto(DataPtr data, QString path);
        bool readInto(ImagePtr image, QString filename);
        virtual DataPtr load(const QString& uid, const QString& filename);
//      vtkImageDataPtr load(const QString& filename) { return this->loadVtkImageData(filename); }
        virtual vtkImageDataPtr loadVtkImageData(QString filename);
        void saveImage(ImagePtr image, const QString& filename);
};

class cxResource_EXPORT PNGImageReader: public DataReader
{
public:
        virtual ~PNGImageReader() {}
        virtual bool canLoad(const QString& type, const QString& filename)
        {
                QString fileType = QFileInfo(filename).suffix();
                return (fileType.compare("png", Qt::CaseInsensitive) == 0);
        }
        virtual bool readInto(DataPtr data, QString path);
        bool readInto(ImagePtr image, QString filename);
        virtual QString canLoadDataType() const { return "image"; }
        virtual DataPtr load(const QString& uid, const QString& filename);
        virtual vtkImageDataPtr loadVtkImageData(QString filename);
};


class cxResource_EXPORT PolyDataMeshReader: public DataReader
{
public:
        virtual ~PolyDataMeshReader()
        {
        }
        virtual bool canLoad(const QString& type, const QString& filename)
        {
                QString fileType = QFileInfo(filename).suffix();
                return (fileType.compare("vtk", Qt::CaseInsensitive) == 0);
        }
        virtual bool readInto(DataPtr data, QString path);
        bool readInto(MeshPtr mesh, QString filename);

        virtual vtkPolyDataPtr loadVtkPolyData(QString filename);
        virtual QString canLoadDataType() const { return "mesh"; }
        virtual DataPtr load(const QString& uid, const QString& filename);
};

class cxResource_EXPORT StlMeshReader: public DataReader
{
public:
        virtual ~StlMeshReader()
        {
        }
        virtual bool canLoad(const QString& type, const QString& filename)
        {
                QString fileType = QFileInfo(filename).suffix();
                return (fileType.compare("stl", Qt::CaseInsensitive) == 0);
        }
        virtual bool readInto(DataPtr data, QString path);
        bool readInto(MeshPtr mesh, QString filename);
        virtual vtkPolyDataPtr loadVtkPolyData(QString filename);
        virtual QString canLoadDataType() const { return "mesh"; }
        virtual DataPtr load(const QString& uid, const QString& filename);
};

class cxResource_EXPORT DataReaderWriter
{
public:
        explicit DataReaderWriter();

        vtkImageDataPtr loadVtkImageData(QString filename);
        vtkPolyDataPtr loadVtkPolyData(QString filename);
        QString findDataTypeFromFile(QString filename);
        void readInto(DataPtr data, QString path);

private:
        DataReaderPtr findReader(const QString& path, const QString& type="unknown");
        typedef std::set<DataReaderPtr> DataReadersType;
        DataReadersType mDataReaders;
};

} // namespace cx

#endif // CXDATAREADERWRITER_H_