(C++) StringGridToVector

VCL code snippet to convert a VCL TStringGrid to a 2D std::vector.


#include <cassert>

#include <string>

#include <vector>

#include <boost/lexical_cast.hpp>

#include <vcl.h>



//From http://www.richelbilderbeek.nl/CppStringGridToVector.htm

template <class T>

const std::vector<std::vector<T> > StringGridToVector(const TStringGrid * const stringGrid)

{

  assert(stringGrid!=0 && "StringGrid must not be NULL");

  const int height = stringGrid->RowCount;

  const int width  = stringGrid->ColCount;

  std::vector<std::vector<T> > v(height, std::vector<T>(width));

  for (int y=0; y!=height; ++y)

  {

    assert(y >=0);

    assert(y < static_cast<int>(v.size()) );

    std::vector<T>& line = v[y];

    //Don't have the guts to do a line-access on a TStringGrid...



    for (int x=0; x!=width; ++x)

    {

      assert(x >=0);

      assert(x < static_cast<int>(line.size()) );

      //const_cast because the VCL is not const-correct. Grumble, grumble...

      const std::string s = (const_cast<TStringGrid*>(stringGrid)->Cells[x][y]).c_str();

      const T t = boost::lexical_cast<T>(s);

      vLine[x] = t;

    }

  }

  return v;

}

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