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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmMrProtocol.h"
#include <map>
#include <string>
namespace gdcm
{
struct MrProtocol::Element {
};
typedef std::map< std::string, std::string > MyMapType;
struct MrProtocol::Internals {
MyMapType mymap;
std::string csastr;
int version;
};
static inline bool starts_with(const std::string& s1, const std::string& s2)
{
return s2.size() <= s1.size() && s1.compare(0, s2.size(), s2) == 0;
}
MrProtocol::MrProtocol()
{
Pimpl = new MrProtocol::Internals;
}
bool MrProtocol::Load( const ByteValue * bv, const char * csastr, int version )
{
if( bv )
{
std::string str(bv->GetPointer(), bv->GetLength());
std::istringstream is(str);
std::string s;
Pimpl->version = version;
if( csastr ) Pimpl->csastr = csastr;
else Pimpl->csastr = "";
MyMapType &mymap = Pimpl->mymap;
mymap.clear();
// Need to handle both:
// ### ASCCONV BEGIN ###
// as well as:
// ### ASCCONV BEGIN object=MrProtDataImpl@MrProtocolData version=41310008 converter=%MEASCONST%/ConverterList/Prot_Converter.txt ###
static const char begin[] = "### ASCCONV BEGIN ";
static const char end[] = "### ASCCONV END ###";
bool hasstarted = false;
while( std::getline(is, s ) )
{
if( !hasstarted )
{
hasstarted = starts_with(s, begin);
if( hasstarted ) {
if( version == -1 ) {
// find version if not specified:
static const char vers[] = "version=";
std::string::size_type p = s.find(vers);
if ( p != std::string::npos) {
const char *v = s.c_str() + p + sizeof(vers) - 1;
Pimpl->version = atoi(v);
}
}
continue; // do not insert ASCCONV begin
}
}
if( !hasstarted ) continue;
if( starts_with(s, end) ) break;
std::string::size_type pos = s.find( '=' );
if( pos != std::string::npos )
{
std::string sub1 = s.substr(0, pos);
sub1.erase( sub1.find_last_not_of(" \t") + 1);
std::string sub2 = s.substr(pos+1); // skip the '=' char
sub2.erase( 0, sub2.find_first_not_of(" \t"));
mymap.insert( MyMapType::value_type(sub1, sub2) );
}
else
{
// ### ASCCONV BEGIN ###
// ### ASCCONV END ###
}
}
}
else
{
Pimpl->version = 0;
Pimpl->csastr = "";
Pimpl->mymap.clear();
return false;
}
return true;
}
MrProtocol::~MrProtocol()
{
delete Pimpl;
}
int MrProtocol::GetVersion() const
{
return Pimpl->version;
}
static inline std::string trim(std::string str)
{
str.erase(0, str.find_first_not_of('"'));
str.erase(str.find_last_not_of('"')+1);
return str;
}
void MrProtocol::Print(std::ostream &os) const
{
{
os << Pimpl->csastr << " / Version: " << Pimpl->version << std::endl;
os << std::endl;
MyMapType &mymap = Pimpl->mymap;
for( MyMapType::const_iterator it = mymap.begin();
it != mymap.end(); ++it)
{
os << it->first << " : " << trim(std::string(it->second)) << std::endl;
}
}
}
const char * MrProtocol::GetMrProtocolByName(const char *name) const
{
if( name )
{
MyMapType &mymap = Pimpl->mymap;
MyMapType::const_iterator it = mymap.find ( name );
if( it == mymap.end() ) return NULL;
return it->second.c_str();
}
return NULL;
}
bool MrProtocol::FindMrProtocolByName(const char *name) const
{
if( name )
{
MyMapType &mymap = Pimpl->mymap;
MyMapType::const_iterator it = mymap.find ( name );
if( it != mymap.end() ) return true;
}
return false;
}
bool MrProtocol::GetSliceArray( MrProtocol::SliceArray & sa ) const
{
// Technically this is all boilerplate code, since we could infer the type
// from the first few leters, eg:
// us -> unsigned char
// d -> double
// ...
sa.Slices.clear();
static const char saSize[] = "sSliceArray.lSize";
const char * sizestr = GetMrProtocolByName(saSize);
if( sizestr == NULL ) return false;
const int size = atoi( sizestr );
sa.Slices.resize( size );
// sSliceArray.asSlice[*].sPosition.dSag
// sSliceArray.asSlice[*].sPosition.dCor
// sSliceArray.asSlice[*].sPosition.dTra
char buf[512];
static const char templ1[] = "sSliceArray.asSlice[%d].sPosition.%s";
static const char templ2[] = "sSliceArray.asSlice[%d].sNormal.%s";
static const char *dir[3] = { "dSag", "dCor", "dTra"};
for( int i = 0; i < size; ++i )
{
Slice & slice = sa.Slices[i];
{
double v[3];
for( int j = 0; j < 3; ++j )
{
sprintf( buf, templ1, i, dir[j] );
const char * valstr = GetMrProtocolByName(buf);
// when not present this means 0.0
double val = 0.0;
if( valstr ) val = atof( valstr );
v[j] = val;
}
Vector3 & pos = slice.Position;
pos.dSag = v[0];
pos.dCor = v[1];
pos.dTra = v[2];
}
{
double v[3];
for( int j = 0; j < 3; ++j )
{
sprintf( buf, templ2, i, dir[j] );
const char * valstr = GetMrProtocolByName(buf);
// when not present this means 0.0
double val = 0.0;
if( valstr ) val = atof( valstr );
v[j] = val;
}
Vector3 & pos = slice.Normal;
pos.dSag = v[0];
pos.dCor = v[1];
pos.dTra = v[2];
}
}
return true;
}
} // end namespace gdcm
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