210 lines
8.2 KiB
C
210 lines
8.2 KiB
C
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/*
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*
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* Copyright (C) 2000-2015, 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: dcmsr
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*
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* Author: Joerg Riesmeier
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*
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* Purpose:
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* classes: DSRStringValue
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*
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*/
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#ifndef DSRSTRVL_H
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#define DSRSTRVL_H
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#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
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#include "dcmtk/dcmsr/dsrtypes.h"
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/*---------------------*
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* class declaration *
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*---------------------*/
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/** Class for string values
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*/
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class DCMTK_DCMSR_EXPORT DSRStringValue
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{
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public:
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/** default constructor
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*/
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DSRStringValue();
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/** constructor
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** @param stringValue initial value to be set
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* @param check if enabled, check 'stringValue' for validity before setting it.
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* See checkValue() for details. An empty value is never accepted.
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*/
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DSRStringValue(const OFString &stringValue,
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const OFBool check = OFTrue);
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/** copy constructor
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** @param stringValue string value to be copied (not checked !)
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*/
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DSRStringValue(const DSRStringValue &stringValue);
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/** destructor
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*/
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virtual ~DSRStringValue();
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/** assignment operator
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** @param stringValue string value to be copied (not checked !)
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** @return reference to this string value after 'stringValue' has been copied
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*/
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DSRStringValue &operator=(const DSRStringValue &stringValue);
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/** clear all internal variables.
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* Please note that the string value might become invalid afterwards.
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*/
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virtual void clear();
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/** check whether the current code is valid.
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* See checkValue() for details.
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** @return OFTrue if code is valid, OFFalse otherwise
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*/
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virtual OFBool isValid() const;
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/** print string value.
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* The output of a typical string value looks like this: "Short text" or "Very long t..."
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* (incl. the quotation marks).
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** @param stream output stream to which the string value should be printed
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* @param maxLength maximum number of characters to be printed. If the string value is
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* longer the output is shortened automatically and three dots "..." are
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* added. The value of 'maxLength' includes these three trailing char's.
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* A value of 0 turns this mechanism off (default), i.e. the full string
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* value is printed.
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*/
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void print(STD_NAMESPACE ostream &stream,
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const size_t maxLength = 0) const;
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/** read string value from dataset.
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* If error/warning output is enabled, a warning message is printed if the string value
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* does not conform with the type (1), value multiplicity (1) and/or value representation.
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** @param dataset DICOM dataset from which the string value should be read
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* @param tagKey DICOM tag specifying the attribute which should be read
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* @param flags flag used to customize the reading process (see DSRTypes::RF_xxx)
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition read(DcmItem &dataset,
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const DcmTagKey &tagKey,
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const size_t flags);
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/** write string value to dataset
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** @param dataset DICOM dataset to which the string value should be written
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* @param tagKey DICOM tag specifying the attribute which should be written
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition write(DcmItem &dataset,
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const DcmTagKey &tagKey) const;
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/** read string value from XML document
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** @param doc document containing the XML file content
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* @param cursor cursor pointing to the starting node
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* @param flags flag used to customize the reading process (see DSRTypes::XF_xxx)
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* @param encoding use encoding handler if OFTrue, ignore character set otherwise
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition readXML(const DSRXMLDocument &doc,
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DSRXMLCursor cursor,
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const size_t flags,
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const OFBool encoding = OFFalse);
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/** render string value in HTML/XHTML format
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** @param docStream output stream to which the main HTML/XHTML document is written
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* @param flags flag used to customize the output (see DSRTypes::HF_xxx)
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition renderHTML(STD_NAMESPACE ostream &docStream,
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const size_t flags) const;
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/** get string value
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** @return reference to string value
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*/
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inline const OFString &getValue() const
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{
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return Value;
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}
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/** set string value.
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* Before setting the string value, it is usually checked. If the value is invalid, the
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* current value is not replaced and remains unchanged. Use the clear() method to empty
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* the string value (which becomes invalid afterwards).
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** @param stringValue value to be set (various VRs, mandatory)
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* @param check if enabled, check value for validity before setting it. See
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* checkValue() method for details. An empty value is never accepted.
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition setValue(const OFString &stringValue,
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const OFBool check = OFTrue);
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/** set string value from element.
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* Before setting the string value, it is usually checked. If the value is invalid, the
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* current value is not replaced and remains unchanged.
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** @param delem DICOM element from which the string value should be retrieved
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* @param pos index of the value in case of multi-valued elements (0..vm-1)
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* @param check if enabled, check string value for validity before setting it. See
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* checkValue() method for details. An empty value is never accepted.
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition setValue(const DcmElement &delem,
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const unsigned long pos = 0,
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const OFBool check = OFTrue);
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/** set string value from dataset.
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* Before setting the string value, it is usually checked. If the value is invalid, the
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* current value is not replaced and remains unchanged.
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** @param dataset DICOM dataset from which the string value should be retrieved
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* @param tagKey DICOM tag specifying the attribute from which the value should be
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* retrieved. The search is limited to the top-level of the dataset.
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* @param pos index of the value in case of multi-valued elements (0..vm-1)
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* @param check if enabled, check string value for validity before setting it. See
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* checkValue() method for details. An empty value is never accepted.
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** @return status, EC_Normal if successful, an error code otherwise
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*/
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OFCondition setValue(DcmItem &dataset,
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const DcmTagKey &tagKey,
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const unsigned long pos = 0,
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const OFBool check = OFTrue);
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protected:
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/** check the specified string value for validity.
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* This base class just checks that the string value is not empty (since all corresponding
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* DICOM attributes are type 1). Derived classes should overwrite this method to perform
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* more sophisticated tests.
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** @param stringValue value to be checked
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** @return status, EC_Normal if current value is valid, an error code otherwise
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*/
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virtual OFCondition checkValue(const OFString &stringValue) const;
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/** check the currently stored string value for validity.
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* See above checkValue() method for details.
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** @return status, EC_Normal if value is valid, an error code otherwise
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*/
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OFCondition checkCurrentValue() const;
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private:
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/// string value (various VRs, type 1)
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OFString Value;
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};
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#endif
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