Program: gdcm
Module: $RCSfile: gdcmDataEntry.cxx,v $
Language: C++
- Date: $Date: 2005/11/04 15:31:34 $
- Version: $Revision: 1.18 $
+ Date: $Date: 2006/04/11 16:03:26 $
+ Version: $Revision: 1.36 $
Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
l'Image). All rights reserved. See Doc/License.txt or
#include <fstream>
+#if defined(__BORLANDC__)
+ #include <mem.h> // for memcpy
+ #include <stdlib.h> // for atof
+ #include <ctype.h> // for isdigit
+#endif
+
namespace gdcm
{
//-----------------------------------------------------------------------------
* \brief Constructor for a given DictEntry
* @param e Pointer to existing dictionary entry
*/
-DataEntry::DataEntry(DictEntry *e)
- : DocEntry(e)
+DataEntry::DataEntry(uint16_t group,uint16_t elem,
+ VRKey const &vr)
+ : DocEntry(group,elem,vr)
{
State = STATE_LOADED;
Flag = FLAG_NONE;
* @param e Pointer to existing Doc entry
*/
DataEntry::DataEntry(DocEntry *e)
- : DocEntry(e->GetDictEntry())
+ //: DocEntry(e->GetDictEntry())
+ : DocEntry(e->GetGroup(),e->GetElement(), e->GetVR() )
{
Flag = FLAG_NONE;
BinArea = 0;
//-----------------------------------------------------------------------------
// Public
/**
- * \brief Sets the value (non string) of the current Dicom Header Entry
+ * \brief Sets the value (non string) of the current DataEntry
+ * @param area area
+ * @param self self
*/
void DataEntry::SetBinArea( uint8_t *area, bool self )
{
State = STATE_LOADED;
}
/**
- * \brief Inserts the value (non string) into the current Dicom Header Entry
+ * \brief Inserts the value (non string) into the current DataEntry
+ * @param area area
+ * @param length length
*/
void DataEntry::CopyBinArea( uint8_t *area, uint32_t length )
{
}
}
+/**
+ * \brief Inserts the elementary (non string) value into the current DataEntry
+ * @param id index of the elementary value to be set
+ * @param val value, passed as a double
+ */
void DataEntry::SetValue(const uint32_t &id, const double &val)
{
if( !BinArea )
}
/**
* \brief returns, as a double (?!?) one of the values
- // (when entry is multivaluated), identified by its index.
- // Returns 0.0 if index is wrong
- // FIXME : warn the user there was a problem !
+ * (when entry is multivaluated), identified by its index.
+ * Returns 0.0 if index is wrong
+ * @param id id
*/
double DataEntry::GetValue(const uint32_t &id) const
{
if( !BinArea )
{
- gdcmErrorMacro("BinArea not set. Can't get the value");
+ if (GetLength() != 0) // avoid stupid messages
+ /// \todo warn the user there was a problem !
+ gdcmErrorMacro("BinArea not set " << std::hex
+ << GetGroup() << " " << GetElement()
+ << " Can't get the value");
return 0.0;
}
uint32_t count = GetValueCount();
if( id > count )
{
- gdcmErrorMacro("Index (" << id << ")is greater than the data size");
+ gdcmErrorMacro("Index (" << id << ") is greater than the data size");
return 0.0;
}
- // FIX the API : user *knows* that entry contains a US
- // and he receives a double ?!?
+ /// \todo FIX the API : user *knows* that entry contains a US
+ /// and he receives a double ?!?
const VRKey &vr = GetVR();
+ /// \todo FIX the API : user *knows* that entry contains a US,
+ /// the method is supposed to return a double
+ /// but sends a US ?!?
if( vr == "US" || vr == "SS" )
return ((uint16_t *)BinArea)[id];
else if( vr == "UL" || vr == "SL" )
return ((double *)BinArea)[id];
else if( Global::GetVR()->IsVROfStringRepresentable(vr) )
{
+ // this is for VR = "DS", ...
if( GetLength() )
{
// Don't use std::string to accelerate processing
/**
* \brief Checks if the multiplicity of the value follows Dictionary VM
*/
-bool DataEntry::IsValueCountValid() const
+bool DataEntry::IsValueCountValid() /*const*/
{
- bool valid;
uint32_t vm;
const std::string &strVM = GetVM();
uint32_t vc = GetValueCount();
+ bool valid = vc == 0;
+ if( valid )
+ return true;
// FIXME : what shall we do with VM = "2-n", "3-n", etc
if( strVM == "1-n" )
{
// make sure there is at least one ??? FIXME
- valid = vc >= 1 || vc == 0;
+ valid = vc >= 1;
}
else
{
// Problem : entry type may depend on the modality and/or the Sequence
// it's embedded in !
// (Get the information in the 'Conformance Statements' ...)
- valid = vc == vm || vc == 0;
+ valid = vc == vm;
}
return valid;
}
return GetLength()/sizeof(uint16_t);
else if( vr == "UL" || vr == "SL" )
return GetLength()/sizeof(uint32_t);
- else if( vr == "FL" )
- return GetLength()/sizeof(float);
+ else if( vr == "FL" || vr == "OF" )
+ return GetLength()/4 ; // FL has a *4* length! sizeof(float);
else if( vr == "FD" )
- return GetLength()/sizeof(double);
+ return GetLength()/8; // FD has a *8* length! sizeof(double);
else if( Global::GetVR()->IsVROfStringRepresentable(vr) )
{
// Some element in DICOM are allowed to be empty
- if( !GetLength() ) return 0;
+ if( !GetLength() )
+ return 0;
// Don't use std::string to accelerate processing
uint32_t count = 1;
for(uint32_t i=0;i<GetLength();i++)
}
return count;
}
-
return GetLength();
}
+
/**
- * \brief Sets the 'value' of an Entry, passed as a std::string
+ * \brief Gets a std::vector <double> holding the value(s) of a DS DataEntry
+ * @param valueVector std::vector <double> of value(s)
+ * \return false if VR not "DS" or DataEntry empty
+ */
+ bool DataEntry::GetDSValue(std::vector <double> &valueVector)
+ {
+ /// \todo rewrite the whole method, in order *not to use* std::string !
+ std::vector<std::string> tokens;
+
+ if (GetVR() != "DS") // never trust a user !
+ return false;
+
+ Util::Tokenize ( GetString().c_str(), tokens, "\\" );
+
+ int nbValues= tokens.size();
+ if (nbValues == 0)
+ return false;
+
+ for (int loop=0; loop<nbValues; loop++)
+ valueVector.push_back(atof(tokens[loop].c_str()));
+
+ return true;
+ }
+
+/**
+ * \brief Sets the 'value' of a DataEntry, passed as a std::string
* @param value string representation of the value to be set
*/
void DataEntry::SetString(std::string const &value)
}
else
{
- if( value.size() > 0 )
+ //if( value.size() > 0 ) // when user sets a string to 0, *do* the job.
{
size_t l = value.size();
SetLength(l + l%2);
memcpy(BinArea, value.c_str(), l);
if (l%2)
BinArea[l] = '\0';
- }
+ }
}
State = STATE_LOADED;
}
else
{
StrArea.append((const char *)BinArea,GetLength());
- // to avoid gdcm propagate oddities in lengthes
+ // to avoid gdcm to propagate oddities in lengthes
if ( GetLength()%2)
StrArea.append(" ",1);
}
return StrArea;
}
+
/**
- * \brief Copies all the attributes from an other DocEntry
+ * \brief Copies all the attributes from an other DocEntry
* @param doc entry to copy from
+ * @remarks The content BinArea is copied too
*/
void DataEntry::Copy(DocEntry *doc)
{
CopyBinArea(entry->BinArea,entry->GetLength());
}
}
+
/**
* \brief Writes the 'value' area of a DataEntry
* @param fp already open ofstream pointer
return; //delimitors have NO value
}
- // --> We only deal with Little Endian writting
+ // --> We only deal with Little Endian writting.
// --> forget Big Endian Transfer Syntax writting!
// Next DICOM version will give it up ...
uint8_t *data = BinArea; //safe notation
size_t l = GetLength();
- gdcmDebugMacro ("in DataEntry::WriteContent " << GetKey()
- << " : " << Global::GetVR()->GetAtomicElementLength(this->GetVR())
- );
+// gdcmDebugMacro("in DataEntry::WriteContent " << GetKey() << " AtomicLength: "
+// << Global::GetVR()->GetAtomicElementLength(this->GetVR() ) // << " BinArea in :" << &BinArea
+// );
if (BinArea) // the binArea was *actually* loaded
{
#if defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)
}
else
{
- // nothing was loaded, but we need to skip space on disc
-
+ // nothing was loaded, but we need to skip space on disc
+ if (l != 0)
+ {
// --> WARNING : nothing is written;
// --> the initial data (on the the source image) is lost
- // --> user is *not* informed !
-
- fp->seekp(l, std::ios::cur);
+ // --> user is *not* informed !
+ gdcmDebugMacro ("Nothing was loaded, but we need to skip space on disc. "
+ << "Length =" << l << " for " << GetKey() );
+ fp->seekp(l, std::ios::cur); // At Write time, for unloaded elems
+ }
}
// to avoid gdcm to propagate oddities
// (length was already modified)
if (l%2)
- fp->seekp(1, std::ios::cur);
+ fp->seekp(1, std::ios::cur); // At Write time, for non even length elems
+}
+
+/**
+ * \brief Compute the full length of the elementary DataEntry (not only value
+ * length) depending on the VR.
+ */
+uint32_t DataEntry::ComputeFullLength()
+{
+ return GetFullLength();
}
//-----------------------------------------------------------------------------
// Protected
-void DataEntry::NewBinArea(void)
+/// \brief Creates a DataEntry owned BinArea (remove previous one if any)
+void DataEntry::NewBinArea( )
{
DeleteBinArea();
if( GetLength() > 0 )
BinArea = new uint8_t[GetLength()];
SelfArea = true;
}
-
+/// \brief Removes the BinArea, if owned by the DataEntry
void DataEntry::DeleteBinArea(void)
{
if (BinArea && SelfArea)
v = GetString();
const VRKey &vr = GetVR();
- if( vr == "US" || vr == "SS" )
- s << " [" << GetString() << "]";
- else if( vr == "UL" || vr == "SL" )
- s << " [" << GetString() << "]";
- else if ( vr == "FL" )
- s << " [" << GetString() << "]";
- else if ( vr == "FD" )
+ if( vr == "US" || vr == "SS" || vr == "UL" || vr == "SL"
+ || vr == "FL" || vr == "FD")
s << " [" << GetString() << "]";
else
{
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