texW.h

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/* This software and supporting documentation are distributed by
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 * This software is governed by the CeCILL-B license under
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#ifndef AIMS_IO_TEXW_H
#define AIMS_IO_TEXW_H
 
#include <aims/config/aimsdata_config.h>
#include <aims/mesh/texture.h>
#include <aims/io/texheader.h>
#include <aims/io/defaultItemW.h>
#include <aims/io/datatypecode.h>
#include <cartobase/exception/file.h>
#include <memory>
 
 
namespace aims
{
 
  template<class T> class AIMSDATA_API TexWriter
  {
  public:
    TexWriter( const std::string & filename ) 
      : _name( filename ), _itemw( 0 ) {}
    ~TexWriter() {}
 
    void write( const TimeTexture<T> & thing, bool ascii );
    void setItemWriter( ItemWriter<T>* iw )
      { delete _itemw; _itemw = iw; }
 
  private:
    std::string         _name;
    ItemWriter<T>       *_itemw;
  };
 
 
  template<class T> AIMSDATA_API 
  inline 
  ItemWriter<T> & operator >> ( ItemWriter<T> & w, TimeTexture<T> & thing )
  {
    w.write( thing );
    return w;
  }
 
 
  template<class T>
  inline
  void TexWriter<T>::write( const TimeTexture<T> & thing, bool ascii )
  {
    TexHeader   hdr( _name, carto::DataTypeCode<T>().dataType(), thing.size(), 
                     ascii );
 
    hdr.copy( thing.header() );
    hdr.write();
 
    std::ios::openmode  omd = std::ios::app;
    if ( !ascii )
      omd |= std::ios::binary;
    std::ofstream       os( hdr.filename().c_str(), omd );
    if ( !os )
      throw carto::file_error( hdr.filename() );
 
    if ( !_itemw )
      _itemw = new DefaultItemWriter<T>;
    std::string opmode = ascii ? "ascii" : "binar";
    ItemWriter<T>       *iw = _itemw->writer( opmode );
    DefaultItemWriter<uint32_t> sw1;
    std::unique_ptr<ItemWriter<uint32_t> > sw( sw1.writer( opmode ) );
 
    typename TimeTexture<T>::const_iterator it, et = thing.end();
 
    for ( it=thing.begin(); it!=et; ++it )
      {
        sw->write( os, it->first );
        const Texture<T> & tex = it->second;
        uint32_t nitem = tex.nItem();
        sw->write( os, nitem );
        const std::vector<T> & vec = tex.data();
        iw->write( os, &vec[0], nitem );
      }
 
    delete iw;
  }
 
}
 
 
#endif