/*

Copyright (C) 1996, 1997 John W. Eaton

This file is part of Octave.

Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING.  If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/

#if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION)
#pragma implementation
#endif

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <iostream>

#include "lo-ieee.h"
#include "mx-base.h"

#include "oct-obj.h"
#include "ops.h"
#include "ov-re-mat.h"
#include "ov-str-mat.h"
#include "gripes.h"
#include "pr-output.h"
#include "pt-mat.h"

DEFINE_OCTAVE_ALLOCATOR (octave_char_matrix_str);

DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_char_matrix_str, "string", "char");

static octave_value *
default_numeric_conversion_function (const octave_value& a)
{
  CAST_CONV_ARG (const octave_char_matrix_str&);

  Matrix m = v.matrix_value (true);

  return error_state ? 0 : new octave_matrix (m);
}

type_conv_fcn
octave_char_matrix_str::numeric_conversion_function (void) const
{
  return default_numeric_conversion_function;
}

octave_value
octave_char_matrix_str::do_index_op (const octave_value_list& idx,
				     int resize_ok)
{
  octave_value retval;

  int len = idx.length ();

  switch (len)
    {
    case 2:
      {
	idx_vector i = idx (0).index_vector ();
	idx_vector j = idx (1).index_vector ();

	retval = octave_value (charNDArray (matrix.index (i, j, resize_ok)),
			       true);
      }
      break;

    case 1:
      {
	idx_vector i = idx (0).index_vector ();

	retval = octave_value (charNDArray (matrix.index (i, resize_ok)),
			       true);
      }
      break;

    default:
      {
	Array<idx_vector> idx_vec (len);

	for (int i = 0; i < len; i++)
	  idx_vec(i) = idx(i).index_vector ();

	retval = octave_value (charNDArray (matrix.index (idx_vec, resize_ok)),
			       true);
      }
      break;
    }

  return retval;
}

void
octave_char_matrix_str::assign (const octave_value_list& idx,
				const charMatrix& rhs)
{
  int len = idx.length ();

  // XXX FIXME XXX
  charMatrix tmp = rhs;
  if (tmp.rows () == 1 && tmp.columns () == 0)
    tmp.resize (0, 0);    

  for (int i = 0; i < len; i++)
    matrix.set_index (idx(i).index_vector ());

  ::assign (matrix, tmp, Vstring_fill_char);
}

bool
octave_char_matrix_str::valid_as_scalar_index (void) const
{
  bool retval = false;
  error ("octave_char_matrix_str::valid_as_scalar_index(): not implemented");
  return retval;
}

double
octave_char_matrix_str::double_value (bool force_string_conv) const
{
  double retval = 0;

  if (! force_string_conv)
    gripe_invalid_conversion ("string", "real scalar");
  else
    {
      if (Vwarn_str_to_num)
	gripe_implicit_conversion ("string", "real scalar");

      retval = octave_char_matrix::double_value ();
    }

  return retval;
}

Matrix
octave_char_matrix_str::matrix_value (bool force_string_conv) const
{
  Matrix retval;

  if (! force_string_conv)
    gripe_invalid_conversion ("string", "real matrix");
  else
    {
      if (Vwarn_str_to_num)
	gripe_implicit_conversion ("string", "real matrix");

      retval = octave_char_matrix::matrix_value ();
    }

  return retval;
}

string_vector
octave_char_matrix_str::all_strings (bool, bool) const
{
  string_vector retval;

  if (matrix.ndims () == 2)
    {
      charMatrix chm = matrix.matrix_value ();

      int n = chm.rows ();

      retval.resize (n);

      for (int i = 0; i < n; i++)
	retval[i] = chm.row_as_string (i, true);
    }
  else
    error ("invalid conversion of charNDArray to string_vector");

  return retval;
}

std::string
octave_char_matrix_str::string_value (bool) const
{
  std::string retval;

  if (matrix.ndims () == 2)
    {
      charMatrix chm = matrix.matrix_value ();

      retval = chm.row_as_string (0);  // XXX FIXME??? XXX
    }
  else
    error ("invalid conversion of charNDArray to string");

  return retval;
}

void
octave_char_matrix_str::print_raw (std::ostream& os, bool pr_as_read_syntax) const
{
  octave_print_internal (os, matrix, pr_as_read_syntax,
			 current_print_indent_level (), true);
}

/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/