dcmdata/include/dcmtk/dcmdata/dcpxitem.h

00001 /*
00002  *
00003  *  Copyright (C) 1994-2010, OFFIS e.V.
00004  *  All rights reserved.  See COPYRIGHT file for details.
00005  *
00006  *  This software and supporting documentation were developed by
00007  *
00008  *    OFFIS e.V.
00009  *    R&D Division Health
00010  *    Escherweg 2
00011  *    D-26121 Oldenburg, Germany
00012  *
00013  *
00014  *  Module:  dcmdata
00015  *
00016  *  Author:  Gerd Ehlers, Andreas Barth
00017  *
00018  *  Purpose: Interface of class DcmPixelItem
00019  *
00020  *  Last Update:      $Author: joergr $
00021  *  Update Date:      $Date: 2010-10-14 13:15:41 $
00022  *  CVS/RCS Revision: $Revision: 1.30 $
00023  *  Status:           $State: Exp $
00024  *
00025  *  CVS/RCS Log at end of file
00026  *
00027  */
00028 
00029 
00030 #ifndef DCPXITEM_H
00031 #define DCPXITEM_H
00032 
00033 #include "dcmtk/config/osconfig.h"    /* make sure OS specific configuration is included first */
00034 #include "dcmtk/dcmdata/dcvrobow.h"
00035 #include "dcmtk/dcmdata/dcofsetl.h"   /* for class DcmOffsetList */
00036 
00037 
00045 class DcmPixelItem : public DcmOtherByteOtherWord
00046 {
00047   public:
00048 
00053     DcmPixelItem(const DcmTag &tag, const Uint32 len = 0);
00054 
00058     DcmPixelItem(const DcmPixelItem &old);
00059 
00061     virtual ~DcmPixelItem();
00062 
00066     DcmPixelItem &operator=(const DcmPixelItem &obj) { DcmOtherByteOtherWord::operator=(obj); return *this; }
00067 
00071     virtual DcmObject *clone() const
00072     {
00073       return new DcmPixelItem(*this);
00074     }
00075 
00079     virtual DcmEVR ident(void) const { return EVR_pixelItem; }
00080 
00093     virtual OFCondition copyFrom(const DcmObject &rhs);
00094 
00102     virtual void print(STD_NAMESPACE ostream &out,
00103                        const size_t flags = 0,
00104                        const int level = 0,
00105                        const char *pixelFileName = NULL,
00106                        size_t *pixelCounter = NULL);
00107 
00114     virtual OFCondition createOffsetTable(const DcmOffsetList &offsetList);
00115 
00121     virtual OFCondition writeXML(STD_NAMESPACE ostream &out,
00122                                  const size_t flags = 0);
00123 
00131     virtual OFCondition writeSignatureFormat(DcmOutputStream &outStream,
00132                                              const E_TransferSyntax oxfer,
00133                                              const E_EncodingType enctype,
00134                                              DcmWriteCache *wcache);
00135 
00136   protected:
00137 
00144     virtual OFCondition writeTagAndLength(DcmOutputStream &outStream,
00145                                           const E_TransferSyntax oxfer,
00146                                           Uint32 &writtenBytes) const;
00147 
00148 };
00149 
00150 
00151 #endif // DCPXITEM_H
00152 
00153 /*
00154 ** CVS/RCS Log:
00155 ** $Log: dcpxitem.h,v $
00156 ** Revision 1.30  2010-10-14 13:15:41  joergr
00157 ** Updated copyright header. Added reference to COPYRIGHT file.
00158 **
00159 ** Revision 1.29  2010-03-01 09:08:44  uli
00160 ** Removed some unnecessary include directives in the headers.
00161 **
00162 ** Revision 1.28  2010-02-22 11:39:54  uli
00163 ** Remove some unneeded includes.
00164 **
00165 ** Revision 1.27  2009-02-04 17:54:31  joergr
00166 ** Fixed various layout and formatting issues.
00167 **
00168 ** Revision 1.26  2009-02-04 10:18:19  joergr
00169 ** Fixed issue with compressed frames of odd length (possibly wrong values in
00170 ** basic offset table).
00171 **
00172 ** Revision 1.25  2008-07-17 11:19:49  onken
00173 ** Updated copyFrom() documentation.
00174 **
00175 ** Revision 1.24  2008-07-17 10:30:23  onken
00176 ** Implemented copyFrom() method for complete DcmObject class hierarchy, which
00177 ** permits setting an instance's value from an existing object. Implemented
00178 ** assignment operator where necessary.
00179 **
00180 ** Revision 1.23  2007-11-29 14:30:19  meichel
00181 ** Write methods now handle large raw data elements (such as pixel data)
00182 **   without loading everything into memory. This allows very large images to
00183 **   be sent over a network connection, or to be copied without ever being
00184 **   fully in memory.
00185 **
00186 ** Revision 1.22  2006/08/15 15:49:56  meichel
00187 ** Updated all code in module dcmdata to correctly compile when
00188 **   all standard C++ classes remain in namespace std.
00189 **
00190 ** Revision 1.21  2005/12/08 16:28:32  meichel
00191 ** Changed include path schema for all DCMTK header files
00192 **
00193 ** Revision 1.20  2005/11/24 12:50:57  meichel
00194 ** Fixed bug in code that prepares a byte stream that is fed into the MAC
00195 **   algorithm when creating or verifying a digital signature. The previous
00196 **   implementation was non-conformant when signatures included compressed
00197 **   (encapsulated) pixel data because the item length was included in the byte
00198 **   stream, while it should not. The global variable dcmEnableOldSignatureFormat
00199 **   and a corresponding command line option in dcmsign allow to re-enable the old
00200 **   implementation.
00201 **
00202 ** Revision 1.19  2004/07/01 12:28:25  meichel
00203 ** Introduced virtual clone method for DcmObject and derived classes.
00204 **
00205 ** Revision 1.18  2002/12/06 12:49:12  joergr
00206 ** Enhanced "print()" function by re-working the implementation and replacing
00207 ** the boolean "showFullData" parameter by a more general integer flag.
00208 ** Added doc++ documentation.
00209 ** Made source code formatting more consistent with other modules/files.
00210 **
00211 ** Revision 1.17  2002/08/27 16:55:38  meichel
00212 ** Initial release of new DICOM I/O stream classes that add support for stream
00213 **   compression (deflated little endian explicit VR transfer syntax)
00214 **
00215 ** Revision 1.16  2002/05/24 14:51:42  meichel
00216 ** Moved helper methods that are useful for different compression techniques
00217 **   from module dcmjpeg to module dcmdata
00218 **
00219 ** Revision 1.15  2002/04/25 09:41:46  joergr
00220 ** Added support for XML output of DICOM objects.
00221 **
00222 ** Revision 1.14  2001/11/16 15:54:39  meichel
00223 ** Adapted digital signature code to final text of supplement 41.
00224 **
00225 ** Revision 1.13  2001/09/25 17:19:28  meichel
00226 ** Adapted dcmdata to class OFCondition
00227 **
00228 ** Revision 1.12  2001/06/01 15:48:43  meichel
00229 ** Updated copyright header
00230 **
00231 ** Revision 1.11  2000/04/14 15:31:33  meichel
00232 ** Removed default value from output stream passed to print() method.
00233 **   Required for use in multi-thread environments.
00234 **
00235 ** Revision 1.10  2000/03/08 16:26:17  meichel
00236 ** Updated copyright header.
00237 **
00238 ** Revision 1.9  2000/03/03 14:05:25  meichel
00239 ** Implemented library support for redirecting error messages into memory
00240 **   instead of printing them to stdout/stderr for GUI applications.
00241 **
00242 ** Revision 1.8  2000/02/10 10:50:53  joergr
00243 ** Added new feature to dcmdump (enhanced print method of dcmdata): write
00244 ** pixel data/item value fields to raw files.
00245 **
00246 ** Revision 1.7  1999/03/31 09:24:45  meichel
00247 ** Updated copyright header in module dcmdata
00248 **
00249 ** Revision 1.6  1998/11/12 16:47:43  meichel
00250 ** Implemented operator= for all classes derived from DcmObject.
00251 **
00252 ** Revision 1.5  1997/05/22 16:57:10  andreas
00253 ** - Corrected errors for writing of pixel sequences for encapsulated
00254 **   transfer syntaxes.
00255 **
00256 ** Revision 1.4  1996/01/29 13:38:13  andreas
00257 ** - new put method for every VR to put value as a string
00258 ** - better and unique print methods
00259 **
00260 ** Revision 1.3  1996/01/05 13:22:58  andreas
00261 ** - changed to support new streaming facilities
00262 ** - more cleanups
00263 ** - merged read / write methods for block and file transfer
00264 **
00265 */


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