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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html 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.
=========================================================================*/
#ifndef GDCMOVERLAY_H
#define GDCMOVERLAY_H
#include "gdcmTypes.h"
#include "gdcmObject.h"
namespace gdcm
{
class OverlayInternal;
class ByteValue;
class DataSet;
class DataElement;
/**
* \brief Overlay class
* \note
* see AreOverlaysInPixelData
*
* \todo
* Is there actually any way to recognize an overlay ? On images with multiple overlay I do not see
* any way to differenciate them (other than the group tag).
*
* Example:
*/
class GDCM_EXPORT Overlay : public Object
{
public:
Overlay();
~Overlay();
/// Print
void Print(std::ostream &) const;
/// Update overlay from data element de:
void Update(const DataElement & de);
/// Set Group number
void SetGroup(unsigned short group);
/// Get Group number
unsigned short GetGroup() const;
/// set rows
void SetRows(unsigned short rows);
/// get rows
unsigned short GetRows() const;
/// set columns
void SetColumns(unsigned short columns);
/// get columns
unsigned short GetColumns() const;
/// set number of frames
void SetNumberOfFrames(unsigned int numberofframes);
/// set description
void SetDescription(const char* description);
/// get description
const char *GetDescription() const;
/// set type
void SetType(const char* type);
/// get type
const char *GetType() const;
/// set origin
void SetOrigin(const signed short *origin);
/// get origin
const signed short * GetOrigin() const;
/// set frame origin
void SetFrameOrigin(unsigned short frameorigin);
/// set bits allocated
void SetBitsAllocated(unsigned short bitsallocated);
/// return bits allocated
unsigned short GetBitsAllocated() const;
/// set bit position
void SetBitPosition(unsigned short bitposition);
/// return bit position
unsigned short GetBitPosition() const;
/// set overlay from byte array + length
void SetOverlay(const char *array, unsigned int length);
///
bool GrabOverlayFromPixelData(DataSet const &ds);
const ByteValue &GetOverlayData() const;
bool IsEmpty() const;
/// return true if all bits are set to 0
bool IsZero() const;
// return if the Overlay is stored in the pixel data or not
bool IsInPixelData() const;
void IsInPixelData(bool b);
void Decode(std::istream &is, std::ostream &os);
void Decompress(std::ostream &os) const;
bool GetBuffer(char *buffer) const;
bool GetUnpackBuffer(unsigned char *buffer) const;
Overlay(Overlay const &ov);
private:
OverlayInternal *Internal;
};
} // end namespace gdcm
#endif //GDCMOVERLAY_H
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