/* Dia -- an diagram creation/manipulation program
 * Copyright (C) 1998 Alexander Larsson
 *
 * umlparameter.c : refactored from uml.c, class.c to final use StdProps
 *                  PROP_TYPE_DARRAY, a list where each element is a set
 *                  of properies described by the same StdPropDesc
 * Copyright (C) 2005 Hans Breuer
 *
 * This program 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 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

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

#include <string.h>

#include "uml.h"
#include "properties.h"

static PropEnumData _uml_parameter_kinds[] = {
  { N_("Undefined"), UML_UNDEF_KIND} ,
  { N_("In"), UML_IN },
  { N_("Out"), UML_OUT },
  { N_("In & Out"), UML_INOUT },
  { NULL, 0 }
};

static PropDescription umlparameter_props[] = {
  { "name", PROP_TYPE_STRING, PROP_FLAG_VISIBLE | PROP_FLAG_OPTIONAL,
  N_("Name"), NULL, NULL },
  { "type", PROP_TYPE_STRING, PROP_FLAG_VISIBLE | PROP_FLAG_OPTIONAL,
  N_("Type"), NULL, NULL },
  { "value", PROP_TYPE_STRING, PROP_FLAG_VISIBLE | PROP_FLAG_OPTIONAL,
  N_("Value"), NULL, NULL },
  { "comment", PROP_TYPE_STRING, PROP_FLAG_VISIBLE | PROP_FLAG_OPTIONAL,
  N_("Comment"), NULL, NULL },
  { "kind", PROP_TYPE_ENUM, PROP_FLAG_VISIBLE | PROP_FLAG_OPTIONAL,
  N_("Kind"), NULL, _uml_parameter_kinds },

  PROP_DESC_END
};

static PropOffset umlparameter_offsets[] = {
  { "name", PROP_TYPE_STRING, offsetof(UMLParameter, name) },
  { "type", PROP_TYPE_STRING, offsetof(UMLParameter, type) },
  { "value", PROP_TYPE_STRING, offsetof(UMLParameter, value) },
  { "comment", PROP_TYPE_STRING, offsetof(UMLParameter, comment) },
  { "kind", PROP_TYPE_ENUM, offsetof(UMLParameter, kind) },
  { NULL, 0, 0 },
};

PropDescDArrayExtra umlparameter_extra = {
  { umlparameter_props, umlparameter_offsets, "umlparameter" },
  (NewRecordFunc)uml_parameter_new,
  (FreeRecordFunc)uml_parameter_destroy
};

UMLParameter *
uml_parameter_new(void)
{
  UMLParameter *param;

  param = g_new0(UMLParameter, 1);
  param->name = g_strdup("");
  param->type = g_strdup("");
  param->comment = g_strdup("");
  param->value = NULL;
  param->kind = UML_UNDEF_KIND;

  return param;
}

void
uml_parameter_destroy(UMLParameter *param)
{
  g_free(param->name);
  g_free(param->type);
  if (param->value != NULL) 
    g_free(param->value);
  g_free(param->comment);

  g_free(param);
}

char *
uml_get_parameter_string (UMLParameter *param)
{
  int len;
  char *str;

  /* Calculate length: */
  len = strlen (param->name) + 1 + strlen (param->type);
  
  if (param->value != NULL) {
    len += 1 + strlen (param->value) ;
  }

  switch(param->kind)
    {
    case UML_UNDEF_KIND:
      break;
    case UML_IN:
      len += 3;
      break;
    case UML_OUT:
      len += 4;
      break;
    case UML_INOUT:
      len += 6;
      break;	  
    }

  /* Generate string: */
  str = g_malloc (sizeof (char) * (len + 1));

  strcpy(str, "");

  switch(param->kind)
    {
    case UML_UNDEF_KIND:
      break;     
    case UML_IN:
      strcat (str, "in ");
      break;
    case UML_OUT:
      strcat (str, "out ");
      break;
    case UML_INOUT:
      strcat (str, "inout ");
      break;
    }
  

  strcat (str, param->name);
  strcat (str, ":");
  strcat (str, param->type);
  if (param->value != NULL) {
    strcat (str, "=");
    strcat (str, param->value);
  }
  
  g_assert (strlen (str) == len);

  return str;
}