/*
-----------------------------------------------------------------------
Copyright: 2010-2021, imec Vision Lab, University of Antwerp
           2014-2021, CWI, Amsterdam

Contact: astra@astra-toolbox.com
Website: http://www.astra-toolbox.com/

This file is part of the ASTRA Toolbox.


The ASTRA Toolbox is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

The ASTRA Toolbox 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.

-----------------------------------------------------------------------
*/

#ifndef _INC_ASTRA_FLOAT32VOLUMEDATA2D
#define _INC_ASTRA_FLOAT32VOLUMEDATA2D

#include "Float32Data2D.h"
#include "VolumeGeometry2D.h"

namespace astra {

/**
 * This class represents two-dimensional Volume Data.
 *
 * It contains member functions for accessing this data and for performing 
 * elementary computations on the data.
 * The data block is "owned" by the class, meaning that the class is 
 * responsible for deallocation of the memory involved. 
 */
class _AstraExport CFloat32VolumeData2D : public CFloat32Data2D {

public:

	/** Default constructor. Sets all numeric member variables to 0 and all pointer member variables to NULL.
	 *
	 * If an object is constructed using this default constructor, it must always be followed by a call 
	 * to one of the init() methods before the object can be used. Any use before calling init() is not allowed,
	 * except calling the member function isInitialized().
	 *
	 */
	CFloat32VolumeData2D();

	/** Constructor. Create an instance of the CFloat32VolumeData2D class without initializing the data.
	 *
	 * Memory is allocated for the data block. The allocated memory is not cleared and 
	 * its contents after construction is undefined. Construction may be followed by a
	 * call to copyData() to fill the memory block.
	 * The size of the data is determined by the specified volume geometry object.
	 *
	 * @param _pGeometry Volume Geometry object.  This object will be HARDCOPIED into this class.
	 */
	CFloat32VolumeData2D(CVolumeGeometry2D* _pGeometry);

	/** Constructor. Create an instance of the CFloat32VolumeData2D class with initialization of the data.
	 *
	 * Memory is allocated for the data block and the contents of the memory pointed to by 
	 * _pfData is copied into the allocated memory. 
	 * The size of the data is determined by the specified volume geometry object.
	 *
	 * @param _pGeometry Volume Geometry object.  This object will be HARDCOPIED into this class.
	 * @param _pfData pointer to a one-dimensional float32 data block
	 */
	CFloat32VolumeData2D(CVolumeGeometry2D* _pGeometry, float32* _pfData);

	/** Constructor. Create an instance of the CFloat32VolumeData2D class with a scalar initialization of the data.
	 *
	 * Memory is allocated for the data block and the contents of the memory pointed to by 
	 * _pfData is copied into the allocated memory. 
	 * The size of the data is determined by the specified volume geometry object.
	 *
	 * @param _pGeometry Volume Geometry object.  This object will be HARDCOPIED into this class.
	 * @param _fScalar scalar value to be put at each index.
	 */
	CFloat32VolumeData2D(CVolumeGeometry2D* _pGeometry, float32 _fScalar);

	/**
	 * Copy constructor
	 */
	CFloat32VolumeData2D(const CFloat32VolumeData2D& _other);
	
	/** Constructor. Create an instance of the CFloat32VolumeData2D class with pre-allocated memory.
	 *
	 * Creates an instance of the CFloat32VolumeData2D class. Memory 
	 * is pre-allocated and passed via the abstract CFloat32CustomMemory handle
	 * class. The handle will be deleted when the memory can be freed.
	 * You should override the destructor to provide custom behaviour on free.
	 *
	 * @param _pGeometry Volume Geometry object.  This object will be HARDCOPIED into this class.
	 * @param _pCustomMemory custom memory handle
	 *
	 */
	CFloat32VolumeData2D(CVolumeGeometry2D* _pGeometry, CFloat32CustomMemory* _pCustomMemory);

	/**
	 * Assignment operator
	 */
	CFloat32VolumeData2D& operator=(const CFloat32VolumeData2D& _other);

	/** Initialization. Initializes of the CFloat32VolumeData2D class without initializing the data.
	 *
	 * Memory is allocated for the data block. The allocated memory is not cleared and 
	 * its contents after construction is undefined. Construction may be followed by a
	 * call to copyData() to fill the memory block.
	 * The size of the data is determined by the specified volume geometry object.
	 *
	 * @param _pGeometry Volume Geometry of the data. This object will be HARDCOPIED into this class.
	 * @return Initialization of the base class successfull.
	 */
	bool initialize(CVolumeGeometry2D* _pGeometry);

	/** Initialization. Initializes an instance of the CFloat32VolumeData2D class with initialization of the data.
	 *
	 * Memory is allocated for the data block and the contents of the memory pointed to by 
	 * _pfData is copied into the allocated memory. 
	 * The size of the data is determined by the specified volume geometry object.
	 *
	 * @param _pGeometry Volume Geometry of the data. This object will be HARDCOPIED into this class.
	 * @param _pfData pointer to a one-dimensional float32 data block
	 */
	bool initialize(CVolumeGeometry2D* _pGeometry, const float32* _pfData);


	/** Initialization. Initializes an instance of the CFloat32VolumeData2D class with scalar initialization of the data.
	 *
	 * Memory is allocated for the data block and the contents of the memory pointed to by 
	 * _pfData is copied into the allocated memory. 
	 * The size of the data is determined by the specified volume geometry object.
	 *
	 * @param _pGeometry Volume Geometry of the data. This object will be HARDCOPIED into this class.
	 * @param _fScalar scalar value to be put at each index.
	 */
	bool initialize(CVolumeGeometry2D* _pGeometry, float32 _fScalar);
	
	/** Initialization. Initializes an instance of the CFloat32VolumeData2D class with pre-allocated memory.
	 *
	 * Memory is pre-allocated and passed via the abstract CFloat32CustomMemory handle
	 * class. The handle will be deleted when the memory can be freed.
	 * You should override the destructor to provide custom behaviour on free.
	 *
	 * @param _pGeometry Volume Geometry object.  This object will be HARDCOPIED into this class.
	 * @param _pCustomMemory custom memory handle
	 *
	 */
	bool initialize(CVolumeGeometry2D* _pGeometry, CFloat32CustomMemory* _pCustomMemory);

	/** Destructor.
	 */
	virtual ~CFloat32VolumeData2D();
	
	/** Which type is this class?
	 *
	 * @return DataType: VOLUME
	 */
	virtual EDataType getType() const;

	/** Get the volume geometry.
	 *
	 * @return pointer to volume geometry.
	 */
	virtual CVolumeGeometry2D* getGeometry() const;

	/** Change the projection geometry.
 	 *  Note that this can't change the dimensions of the data.
	 */
	virtual void changeGeometry(CVolumeGeometry2D* pGeometry);

protected:

	/** The projection geometry for this data.
	 */
	CVolumeGeometry2D* m_pGeometry;

};

//----------------------------------------------------------------------------------------
// Get the projection geometry.
inline CVolumeGeometry2D* CFloat32VolumeData2D::getGeometry() const
{
	ASTRA_ASSERT(m_bInitialized);
	return m_pGeometry;
}

//----------------------------------------------------------------------------------------
// Get type
inline CFloat32Data2D::EDataType CFloat32VolumeData2D::getType() const
{
	return VOLUME;
}


} // end namespace astra

#endif // _INC_ASTRA_FLOAT32VOLUMEDATA2D