269 lines
11 KiB
C
269 lines
11 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: DVPSDisplayedArea
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*
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*/
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#ifndef DVPSDA_H
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#define DVPSDA_H
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#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
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#include "dcmtk/dcmdata/dctk.h"
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#include "dcmtk/dcmpstat/dvpsril.h" /* for DVPSReferencedImage_PList */
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#include "dcmtk/dcmpstat/dvpstyp.h" /* for enum types */
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class DVPSReferencedSeries_PList;
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/** an item of the displayed area selection sequence in a presentation state.
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*/
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class DCMTK_DCMPSTAT_EXPORT DVPSDisplayedArea
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{
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public:
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/// default constructor
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DVPSDisplayedArea();
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/// copy constructor
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DVPSDisplayedArea(const DVPSDisplayedArea& copy);
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/** clone method.
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* @return a pointer to a new DVPSDisplayedArea object containing
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* a copy of this object.
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*/
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DVPSDisplayedArea *clone() { return new DVPSDisplayedArea(*this); }
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/// destructor
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virtual ~DVPSDisplayedArea();
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/** reads an displayed area selection from a DICOM dataset.
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* The DICOM elements of the displayed area selection 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 DisplayedAreaSelectionSequence from which the data is to be read
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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);
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/** writes the displayed area selection 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 DisplayedAreaSelectionSequence to which the data is written
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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);
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/** checks if this displayed area is applicable to the given image and frame.
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* @param instanceUID SOP instance UID of the current image
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* @param frame number of the current frame
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* @return OFTrue if applicable.
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*/
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OFBool isApplicable(const char *instanceUID, unsigned long frame);
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/** checks if this displayed area matches exactly the applicability
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* defined by the instanceUID, frame and applicability parameters.
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* @param instanceUID SOP instance UID of the current image
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* @param frame number of the current frame
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* @return OFTrue if matching.
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*/
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OFBool matchesApplicability(const char *instanceUID, unsigned long frame, DVPSObjectApplicability applicability);
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/** gets the presentation size mode for this displayed area selection.
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* @return presentation size mode
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*/
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DVPSPresentationSizeMode getPresentationSizeMode();
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/** gets the presentation pixel aspect ratio for this displayed area selection.
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* Pixel aspect ratio is defined here as the width of a pixel divided
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* by the height of a pixel (x/y).
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* @return pixel aspect ratio
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*/
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double getPresentationPixelAspectRatio();
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/** gets the displayed area top lefthand corner and
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* bottom righthand corner.
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* @param tlhcX the displayed area top lefthand corner X value is returned in this parameter
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* @param tlhcY the displayed area top lefthand corner Y value is returned in this parameter
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* @param brhcX the displayed area bottom righthand corner X value is returned in this parameter
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* @param brhcY the displayed area bottom righthand corner Y value is returned in this parameter
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*/
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void getDisplayedArea(Sint32& tlhcX, Sint32& tlhcY, Sint32& brhcX, Sint32& brhcY);
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/** gets the presentation pixel spacing for this displayed area if present.
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* @param x the horizontal pixel spacing (mm) is returned in this parameter upon success
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* @param y the vertical pixel spacing (mm) is returned in this parameter upon success
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* @return EC_Normal if successful, an error code if no presentation pixel spacing is available.
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*/
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OFCondition getPresentationPixelSpacing(double& x, double& y);
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/** gets the presentation pixel magnification ratio for this displayed area if present.
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* @param magnification the magnification ratio is returned in this parameter upon success
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* @return EC_Normal if successful, an error code if no magnification ratio is available.
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*/
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OFCondition getPresentationPixelMagnificationRatio(double& magnification);
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/** add a new image reference.
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* Checks if the referenced SOP instance UID already exists in this sequence.
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* If it exists, an error code is returned. Otherwise a new image reference
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* is created and added to the ReferencedImageSequence.
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* @param sopclassUID the SOP class UID of the image reference to be added.
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* @param instanceUID the SOP instance UID of the image reference to be added.
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* @param frame the frame number of the image reference (current image) to be added.
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* @param applicability the applicability of the image reference (DVPSB_currentFrame or DVPSB_currentImage)
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition addImageReference(
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const char *sopclassUID,
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const char *instanceUID,
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unsigned long frame,
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DVPSObjectApplicability applicability);
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/** removes a reference to an image or frame. If the current reference is empty ("global"), an
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* explicit list of references is constructed from the list of series/instance references.
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* The image or frame reference is removed from the total list of references in this object.
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* If the only reference contained in this object is removed, the reference list becomes empty
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* which means that the current reference becomes "global". This case must be handled by the caller.
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* @param allReferences list of series/instance references registered for the presentation state.
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* @param instanceUID SOP instance UID of the current image
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* @param frame number of the current frame
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* @param numberOfFrames the number of frames of the current image
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* @param applicability the applicability of the image reference to be removed
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* (DVPSB_currentFrame or DVPSB_currentImage)
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*/
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void removeImageReference(
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DVPSReferencedSeries_PList& allReferences,
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const char *instanceUID,
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unsigned long frame,
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unsigned long numberOfFrames,
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DVPSObjectApplicability applicability);
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/** removes all image references for this displayed area.
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*/
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void clearImageReferences() { referencedImageList.clear(); }
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/** checks if the list of image references for this displayed area is empty.
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* @return OFTrue if list of image references is empty, OFFalse otherwise.
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*/
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OFBool imageReferencesEmpty() { if (referencedImageList.size()==0) return OFTrue; else return OFFalse; }
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/** checks if the TRUE SIZE mode is possible, i.e.
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* if pixel spacing is known.
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* @return OFTrue if TRUE SIZE mode is available, OFFalse otherwise.
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*/
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OFBool canUseTrueSize();
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/** sets the displayed area pixel spacing and
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* removes any pixel aspect ratio setting.
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* @param spacingX horizontal pixel spacing in mm
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* @param spacingY vertical pixel spacing in mm
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setDisplayedAreaPixelSpacing(double spacingX, double spacingY);
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/** sets the displayed area pixel spacing and
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* removes any pixel aspect ratio setting.
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* @param spacing vertical/horizontal spacing in DICOM DS format.
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setDisplayedAreaPixelSpacing(const char *spacing);
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/** sets the displayed area pixel spacing and
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* removes any pixel spacing setting.
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* Pixel aspect ratio is defined here as the width of a pixel divided
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* by the height of a pixel (x/y).
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* @param ratio pixel aspect ratio
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setDisplayedAreaPixelAspectRatio(double ratio);
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/** sets the displayed area pixel spacing and
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* removes any pixel spacing setting.
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* @param ratio pixel aspect ratio in DICOM IS format.
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setDisplayedAreaPixelAspectRatio(const char *ratio);
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/** sets the displayed area and size mode.
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* @param sizeMode presentation size mode.
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* @param tlhcX displayed area top lefthand corner X
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* @param tlhcY displayed area top lefthand corner Y
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* @param brhcX displayed area bottom righthand corner X
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* @param brhcY displayed area bottom righthand corner Y
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* @param magnification magnification factor - ignored unless
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* sizeMode==DVPSD_magnify.
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* @return EC_Normal if successful, an error code otherwise.
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*/
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OFCondition setDisplayedArea(
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DVPSPresentationSizeMode sizeMode,
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Sint32 tlhcX, Sint32 tlhcY,
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Sint32 brhcX, Sint32 brhcY,
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double magnification=1.0);
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/** adjusts the displayed area coordinates for the rotation and flipping
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* status of the image.
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* @param rotationFrom previous rotation
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* @param isFlippedFrom previous flip status
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* @param rotationTo new rotation
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* @param isFlippedTo new flip status
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*/
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void rotateAndFlip(
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DVPSRotationType rotationFrom,
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OFBool isFlippedFrom,
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DVPSRotationType rotationTo,
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OFBool isFlippedTo);
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private:
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/** undefined private assignment operator
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*/
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DVPSDisplayedArea& operator=(const DVPSDisplayedArea& source);
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/// swaps the horizontal (X) components of TLHC and BRHC
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void switchHorizontalCorners();
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/// swaps the vertical (Y) components of TLHC and BRHC
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void switchVerticalCorners();
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/** adjusts the displayed area coordinates for rotation and flipping.
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* This method can either be used to adjust from unrotated/unflipped
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* to a rotated/flipped status or back from this status to original.
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* @param rotation rotation
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* @param isFlipped flip status
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*/
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void rotateAndFlipFromOrTo(DVPSRotationType rotation, OFBool isFlipped);
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/// ReferencedImageSequence, Type 1c
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DVPSReferencedImage_PList referencedImageList;
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/// VR=SL, VM=2, Type 1
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DcmSignedLong displayedAreaTopLeftHandCorner;
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/// VR=SL, VM=2, Type 1
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DcmSignedLong displayedAreaBottomRightHandCorner;
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/// VR=CS, VM=1, Type 1
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DcmCodeString presentationSizeMode;
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/// VR=DS, VM=2, Type 1c (required if presentationSizeMode is "TRUE SIZE")
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DcmDecimalString presentationPixelSpacing;
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/// VR=IS, VM=2, Type 1c (required if presentationPixelSpacing is absent)
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DcmIntegerString presentationPixelAspectRatio;
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/// VR=FL, VM=1, Type 1c (required if presentationSizeMode is "MAGNIFY")
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DcmFloatingPointSingle presentationPixelMagnificationRatio;
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};
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#endif
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