249 lines
9.2 KiB
C
249 lines
9.2 KiB
C
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/*
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*
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* Copyright (C) 1998-2012, OFFIS e.V.
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* All rights reserved. See COPYRIGHT file for details.
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*
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* This software and supporting documentation were developed by
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*
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* OFFIS e.V.
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* R&D Division Health
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* Escherweg 2
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* D-26121 Oldenburg, Germany
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*
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*
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* Module: dcmpstat
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*
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* Author: Marco Eichelberg
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*
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* Purpose:
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* classes: DVPSPresentationLUT
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*
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*/
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#ifndef DVPSPL_H
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#define DVPSPL_H
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#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
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#include "dcmtk/dcmpstat/dvpstyp.h" /* for enum types */
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#include "dcmtk/dcmpstat/dpdefine.h"
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#include "dcmtk/dcmdata/dcvrus.h"
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#include "dcmtk/dcmdata/dcvrui.h"
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#include "dcmtk/dcmdata/dcvrlo.h"
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struct T_DIMSE_Message;
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class DicomImage;
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class DiLookupTable;
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class DcmDataset;
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/** the representation of a Presentation LUT Content SQ item for Stored Print
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*/
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class DCMTK_DCMPSTAT_EXPORT DVPSPresentationLUT
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{
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public:
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/// default constructor
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DVPSPresentationLUT();
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/// copy constructor
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DVPSPresentationLUT(const DVPSPresentationLUT& copy);
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/** clone method.
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* @return a pointer to a new DVPSPresentationLUT object containing
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* a copy of this object.
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*/
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DVPSPresentationLUT *clone() { return new DVPSPresentationLUT(*this); }
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/// destructor
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virtual ~DVPSPresentationLUT();
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/** resets the object to initial state.
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* After this call, the object is in the same state as after
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* creation with the default constructor.
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*/
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void clear();
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/** reads an Presentation LUT from a DICOM dataset.
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* The DICOM elements of the referenced item are copied
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* from the dataset to this object.
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* The completeness of the item (presence of all required elements,
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* value multiplicity) is checked.
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* If this method returns an error code, the object is in undefined state afterwards.
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* @param dset the item of the PresentationLUTContentSequence from which the data is to be read
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* @param withSOPInstance true if SOPinstanceUID should be read (when used with Stored Print).
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition read(DcmItem &dset, OFBool withSOPInstance);
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/** writes the Presentation LUT managed by this object to a DICOM dataset.
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* Copies of the DICOM element managed by this object are inserted into
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* the DICOM dataset.
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* @param dset the the item of the PresentationLUTContentSequence to which the data is written
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* @param withSOPInstance true if SOPinstanceUID should be written (when used with Stored Print).
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition write(DcmItem &dset, OFBool withSOPInstance);
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/** checks whether current presentation LUT is inverse, i.e.
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* shape is INVERSE or first LUT entry larger than last LUT entry.
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*/
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OFBool isInverse();
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/** gets the current Presentation LUT type.
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* @return the current presentation LUT type
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*/
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DVPSPresentationLUTType getType() { return presentationLUT; }
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/** gets a description of the Presentation LUT in terms of
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* its restrictions for use with a Print SCP that requires
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* Presentation LUT number of entries to match the bit depth
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* of the image pixel data.
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* @return the current presentation LUT alignment type
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*/
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DVPSPrintPresentationLUTAlignment getAlignment();
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/** checks if a real Presentation LUT (not shape) is available.
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* @return OFTrue if this object contains
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* a presentation LUT, no matter if it is activated or not.
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* Returns OFFalse otherwise.
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*/
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OFBool haveTable();
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/** gets a description of the current presentation LUT.
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* For well-known presentation LUT shapes, a standard text
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* is returned. For presentation LUTs, the LUT explanation
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* is returned if it exists and a standard text otherwise.
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* This method never returns NULL.
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* @return a pointer to a string describing the current presentation LUT.
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*/
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const char *getCurrentExplanation();
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/** returns the LUT explanation of the presentation LUT if it exists and is non-empty.
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* Otherwise returns NULL.
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* @return a string pointer
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*/
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const char *getLUTExplanation();
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/** returns the SOP instance UID of the presentation LUT if present.
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* Otherwise returns NULL.
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* @return a string pointer
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*/
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const char *getSOPInstanceUID();
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/** stores a presentation lookup table and activates it.
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* The LUT is copied. If the method returns EC_Normal,
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* any old presentation LUT is overwritten.
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* If the method returns an error code, an old LUT is left unchanged.
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* @param lutDescriptor the LUT Descriptor in DICOM format (VM=3)
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* @param lutData the LUT Data in DICOM format
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* @param lutExplanation the LUT Explanation in DICOM format, may be empty.
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setLUT(
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DcmUnsignedShort& lutDescriptor,
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DcmUnsignedShort& lutData,
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DcmLongString& lutExplanation);
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/** sets the current Presentation LUT type.
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* DVPSP_table can only be used if the object
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* contains a lookup table, i.e. if haveTable() returns OFTrue.
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* @param newType the new presentation LUT type.
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setType(DVPSPresentationLUTType newType);
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/** inverts presentation LUT or presentation state LUT shape.
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* @return EC_Normal upon success, an error code otherwise.
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*/
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OFCondition invert();
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/** activates the current presentation transform in the given DicomImage.
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* @param image the DicomImage for which the presentation transform is to be set.
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* @param printLUT OFTrue if presentation LUT is activated for print bitmap rendering
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* (in this case there is no implicit scaling of the input width of the LUT and,
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* therefore, the VOI transformation - which is absent for print - is used),
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* OFFalse otherwise (softcopy rendering, default)
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* @return OFTrue if successful, OFFalse otherwise.
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*/
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OFBool activate(DicomImage *image, OFBool printLUT = OFFalse);
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/** activates the inverse LUT of the current presentation LUT (if any) in the given DicomImage.
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* Presentation LUT shape is not supported by this method.
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* @param image the DicomImage for which the inverse presentation LUT is to be set.
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* @return OFTrue if successful, OFFalse otherwise.
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*/
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OFBool activateInverseLUT(DicomImage *image);
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/** creates a DiLookupTable instance from the LUT table
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* managed by this object. The returned object must be freed by the caller.
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* @return new DiLookupTable object, may be NULL if no LUT present.
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*/
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DiLookupTable *createDiLookupTable();
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/** compares a DiLookupTable instance with the LUT table
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* managed by this object. Returns OFTrue if equal, OFFalse otherwise.
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* @param lut DiLookupTable object to compare with
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* @return comparison, true if equal
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*/
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OFBool compareDiLookupTable(DiLookupTable *lut);
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/** sets the SOP instance UID.
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* @param value new attribute value, must not be NULL.
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setSOPInstanceUID(const char *value);
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/** checks whether the current Presentation LUT (or shape) is
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* legal when used with Supplement 22.
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* @return true if current Presentation LUT is legal for print.
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*/
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OFBool isLegalPrintPresentationLUT();
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/** checks whether the current Presentation LUT (or shape)
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* matches the current image bit depth in number of entries and first value mapped.
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* @param is12bit true if the image is 12 bit, false if the image is 8 bit
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* @return true if Presentation LUT matches, false otherwise.
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*/
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OFBool matchesImageDepth(OFBool is12bit);
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/** performs a Print SCP N-CREATE operation on a newly created instance of
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* this class. The results of the operation are stored in the objects
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* passed as rsp and rspDataset.
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* @param rqDataset N-CREATE request dataset, may be NULL
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* @param rsp N-CREATE response message
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* @param rspDataset N-CREATE response dataset passed back in this parameter
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* @param matchRequired boolean flag specifying whether the SCP should
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* enforce a rule that all Presentation LUTs must match with the
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* bit depth of the image pixel data.
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* @param supports12Bit boolean flag specifying whether the SCP should
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* allow 12 bit/pixel image data transmission. Affects handling of
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* matching rule.
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* @return OFTrue if operation was successful, OFFalse otherwise.
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*/
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OFBool printSCPCreate(
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DcmDataset *rqDataset,
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T_DIMSE_Message& rsp,
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DcmDataset *& rspDataset,
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OFBool matchRequired,
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OFBool supports12Bit);
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private:
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/// private undefined assignment operator
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DVPSPresentationLUT& operator=(const DVPSPresentationLUT&);
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/// describes active type of presentation LUT.
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DVPSPresentationLUTType presentationLUT;
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/// Module=Softcopy_Presentation_LUT, VR=xs, VM=3, Type 1c
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DcmUnsignedShort presentationLUTDescriptor;
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/// Module=Softcopy_Presentation_LUT, VR=LO, VM=1, Type 3
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DcmLongString presentationLUTExplanation;
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/// Module=Softcopy_Presentation_LUT, VR=xs, VM=1-n, Type 1c
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DcmUnsignedShort presentationLUTData;
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/// Module=Presentation_LUT_List, VR=UI, VM=1, Type 1
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DcmUniqueIdentifier sOPInstanceUID;
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};
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#endif
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