dlp_edit.c

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/* This file is part of the 'atomes' software
 
'atomes' is free software: you can redistribute it and/or modify it under the terms
of the GNU Affero General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.
 
'atomes' 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 Affero General Public License along with 'atomes'.
If not, see <https://www.gnu.org/licenses/>
 
Copyright (C) 2022-2026 by CNRS and University of Strasbourg */

 
/*
* This file: 'dlp_edit.c'
*
* Contains:
*
 
 - The functions to edit DL-POLY force field parameters
 
*
* List of functions:
 
  int get_num_vdw_max ();
 
  gboolean are_identical_prop (int ti, int ai, field_prop * pro_a, field_prop * pro_b);
  gboolean tersoff_question ();
  gboolean body_identicals (field_nth_body * body, int nbd, int * na, int ** ma, int ** ba);
 
  gchar * get_this_vdw_string ();
  gchar * field_str (int a);
  gchar * body_str (int a);
  gchar * get_body_element_name (field_nth_body * body, int aid, int nbd);
 
  void adjust_field_prop (int fil, int sti, field_prop * tmp, int * ids, int key);
  void select_atom_set_color (GtkCellRenderer * renderer, int i);
  void select_atom_set_cmv (GtkTreeViewColumn * col, GtkCellRenderer * renderer, GtkTreeModel * mod, GtkTreeIter * iter, gpointer data);
  void update_field_dist (float v);
  void adjust_vdw_interactions (gboolean add_shell);
  void edit_parameters (int f, int id);
  void update_tersoffs (int id, int key);
  void check_tersoffs (int id, int key);
 
  G_MODULE_EXPORT void update_atom_parameter (GtkEntry * res, gpointer data);
  G_MODULE_EXPORT void update_field_parameter (GtkEntry * res, gpointer data);
  G_MODULE_EXPORT void update_cross_parameter (GtkEntry * res, gpointer data);
  G_MODULE_EXPORT void changed_cross_combo (GtkComboBox * box, gpointer data);
  G_MODULE_EXPORT void changed_field_key_combo (GtkComboBox * box, gpointer data);
  G_MODULE_EXPORT void visualize_it (GtkCheckButton * but, gpointer data);
  G_MODULE_EXPORT void visualize_it (GtkToggleButton * but, gpointer data);
  G_MODULE_EXPORT void select_it (GtkCheckButton * but, gpointer data);
  G_MODULE_EXPORT void select_it (GtkToggleButton * but, gpointer data);
  G_MODULE_EXPORT void field_molecule_select_atom_id (GtkCellRendererToggle * cell_renderer, gchar * string_path, gpointer data);
  G_MODULE_EXPORT void edit_unit_weight (GtkCellRendererText * cell, gchar * path_string, gchar * new_text, gpointer data);
  G_MODULE_EXPORT void select_atom_id_from_fied_molecule (GtkButton * but, gpointer data);
  G_MODULE_EXPORT void selection_button (GtkButton * but, gpointer data);
  G_MODULE_EXPORT void changed_atom_combo (GtkComboBox * box, gpointer data);
  G_MODULE_EXPORT void shell_in_vdw (GtkCheckButton * but, gpointer data);
  G_MODULE_EXPORT void shell_in_vdw (GtkToggleButton * but, gpointer data);
  G_MODULE_EXPORT void run_edit_parameters (GtkDialog * dialog, gint response_id, gpointer data);
  G_MODULE_EXPORT void edit_field_prop (GSimpleAction * action, GVariant * parameter, gpointer data);
  G_MODULE_EXPORT void add_field_prop (GSimpleAction * action, GVariant * parameter, gpointer data);
  G_MODULE_EXPORT void remove_field_prop (GSimpleAction * action, GVariant * parameter, gpointer data);
 
  GtkWidget * combo_cross (field_nth_body * body);
  GtkWidget * parameters_box (int obj, int key,  gchar ** words, float * data);
  GtkWidget * param_prop_param_box (int pid);
 
*/
 
#include "global.h"
#include "interface.h"
#include "glwindow.h"
#include "glview.h"
#include "dlp_field.h"
#include "calc.h"
 
extern int * atoms_id;
extern int ** atoms_id_list;
extern char *** ff_atoms;
 
extern gchar * felemt[MAXDATA+1];
extern gchar * elemts[MAXDATA];
extern gchar * mo_title[8];
 
extern int fetypes[2][16];
 
extern void clean_up_molecules_info (gboolean usel);
extern void select_object (int id, int jd, int kd);
extern G_MODULE_EXPORT void run_add_atom_dialog (GtkDialog * add_dialog, gint response_id, gpointer data);
extern void field_selection (int i, int viz, int lab, int aid);
extern void field_unselect_all ();
extern void compare_non_bonded (gchar * fatom);
extern void visualize_single_struct (int id, int jd, int kd, int * ids);
extern void visualize_body (int viz, int bd, field_nth_body * body);
extern void init_default_shaders (glwin * view);
extern GtkWidget * create_field_prop_combo (int f, int is_moy);
extern void check_atom_for_updates ();
extern void check_to_visualize_properties_for_this_field_mol (int pid, int mol);
extern GtkWidget * ff_p_combo[2];
 
GtkWidget * field_key_combo;
GtkWidget * p_box;
GtkWidget * cross_vbox, * cross_hbox;
GtkWidget * param_box;
GtkWidget * img_but[4];
GtkWidget * shell_but;
 
GtkWidget * shell_hbox[3];
GtkWidget * shell_cbox[2];
GtkWidget * body_lab;
GtkWidget * afftype;
int is_moy;
int * edit_atids;

gboolean are_identical_prop (int ti, int ai, field_prop * pro_a, field_prop * pro_b)
{
  if (pro_a -> key != pro_b -> key) return FALSE;
  if (pro_a -> use != pro_b -> use) return FALSE;
  if (pro_a -> show != pro_b -> show) return FALSE;
  int i;
  /*for (i=0; i<ai; i++)
  {
    if (pro_a -> aid[i] != pro_b -> aid[i]) return FALSE;
  }*/
  for (i=0; i<fvalues[activef][ti][pro_a -> key]; i++)
  {
    if (pro_a -> val[i] != pro_b -> val[i]) return FALSE;
  }
  return TRUE;
}

void adjust_field_prop (int fil, int sti, field_prop * tmp, int * ids, int key)
{
  int i, j, k, l;
  gboolean add;
  add = FALSE;
  field_prop * pro, * ptmp;
  if (ids[0] < 0)
  {
    // Default prop
    if (tmp == NULL)
    {
      // New val for default field prop
      tmp_fstr -> def = init_field_prop (fil, key, tmp_fstr -> def -> show, tmp_fstr -> def -> use);
    }
    else
    {
      tmp_fstr -> def = duplicate_field_prop (tmp, fil);
    }
  }
  else
  {
    // Not default, between specified atoms
    if (tmp != NULL)
    {
      pro = get_active_prop_using_atoms (tmp_fstr -> other, sti, ids);
      if (pro == NULL)
      {
        // No 'other' yet, but is it identical to default ?
        if (! are_identical_prop (fil+1, sti, tmp, tmp_fstr -> def))
        {
          add = TRUE;
        }
      }
      else if (! are_identical_prop (fil+1, sti, tmp, pro))
      {
        add = TRUE;
      }
    }
    else
    {
      if (tmp_fstr -> other == NULL)
      {
        add = TRUE;
        j = key;
        k = tmp_fstr -> def -> show;
        l = tmp_fstr -> def -> use;
      }
      else
      {
        pro = get_active_prop_using_atoms (tmp_fstr -> other, sti, ids);
        if (pro == NULL)
        {
          if (key != tmp_fstr -> def -> key)
          {
            add = TRUE;
            j = key;
            k = tmp_fstr -> def -> show;
            l = tmp_fstr -> def -> use;
          }
        }
        else if (key != pro -> key)
        {
          add = TRUE;
          j = key;
        }
      }
    }
 
    if (add)
    {
      if (tmp_fstr -> other == NULL)
      {
        if (tmp != NULL)
        {
          tmp_fstr -> other = duplicate_field_prop (tmp, fil);
        }
        else
        {
          tmp_fstr -> other = init_field_prop (fil, j, k, l);
          for (i=0; i<sti; i++) tmp_fstr -> other -> aid[i] = ids[i];
        }
      }
      else if (pro == NULL)
      {
        pro = tmp_fstr -> other;
        while (pro -> next != NULL) pro = pro -> next;
        if (tmp != NULL)
        {
          pro -> next = duplicate_field_prop (tmp, fil);
        }
        else
        {
          pro -> next = init_field_prop (fil, j, k, l);
          pro = pro -> next;
          for (i=0; i<sti; i++) pro -> aid[i] = ids[i];
        }
      }
      else
      {
        if (tmp != NULL)
        {
          // Modifying an existing 'other' prop
          pro -> key = tmp -> key;
          pro -> val = NULL;
          if (fvalues[activef][fil+1][tmp -> key] > 0)
          {
            pro -> val = duplicate_float (fvalues[activef][fil+1][tmp -> key], tmp -> val);
          }
          pro -> show = tmp -> show;
          pro -> use = tmp -> use;
        }
        else
        {
          pro -> key = j;
          pro -> val = NULL;
          pro -> val = allocfloat (fvalues[activef][fil+1][j]);
        }
      }
    }
  }
 
  if (tmp_fstr -> other != NULL)
  {
    ptmp = tmp_fstr -> other;
    while (ptmp)
    {
      if (are_identical_prop (fil+1, sti, ptmp, tmp_fstr -> def))
      {
        if (ptmp -> next != NULL)
        {
          if (ptmp -> prev != NULL)
          {
            ptmp -> prev -> next = ptmp -> next;
            ptmp -> next -> prev = ptmp -> prev;
          }
          else
          {
            ptmp -> next -> prev = NULL;
          }
        }
        else if (ptmp -> prev != NULL)
        {
          ptmp -> prev -> next = NULL;
        }
        else
        {
          g_free (tmp_fstr -> other);
          tmp_fstr -> other = NULL;
          ptmp = NULL;
        }
      }
      if (ptmp) ptmp = ptmp -> next;
    }
  }
  if (tmp_fstr -> other != NULL)
  {
    ptmp = tmp_fstr -> other;
    ptmp -> pid = 0;
    while (ptmp -> next != NULL)
    {
      ptmp -> next -> pid = ptmp -> pid + 1;
      ptmp = ptmp -> next;
    }
  }
}

G_MODULE_EXPORT void update_atom_parameter (GtkEntry * res, gpointer data)
{
  int i = GPOINTER_TO_INT(data);
  double v;
  const gchar * m = entry_get_text (res);
  if (i > -1)
  {
    v = string_to_double ((gpointer)m);
    update_entry_double (res, v);
  }
  switch (i)
  {
    case -1:
      tmp_fat -> name = g_strdup_printf ("%s", m);
      break;
    case 0:
      tmp_fat -> mass = v;
      break;
    case 1:
      tmp_fat -> charge = v;
      break;
    case 2:
      tmp_fshell -> m = v;
      break;
    case 3:
      tmp_fshell -> z = v;
      break;
    case 4:
      tmp_fshell -> k2 = v;
      break;
    case 5:
      tmp_fshell -> k4 = v;
      break;
    case 6:
      tmp_fcons -> length = v;
      break;
    case 7:
      tmp_fpmf -> length = v;
      break;
  }
}
 
int object_is;

G_MODULE_EXPORT void update_field_parameter (GtkEntry * res, gpointer data)
{
  int i = GPOINTER_TO_INT(data);
  const gchar * m = entry_get_text (res);
  double v = string_to_double ((gpointer)m);
  update_entry_double (res, v);
  if (object_is > 0 && object_is < 9)
  {
    tmp_fprop -> val[i] = v;
  }
  else
  {
    switch (object_is)
    {
      case 0:
        tmp_ftet -> val[i] = v;
        break;
      case 14:
        tmp_fext -> val[i] = v;
        break;
      default:
        tmp_fbody -> val[i] = v;
        break;
    }
  }
}
 
GtkWidget * centry[3];
GtkWidget * cross_box;
double *** cross = NULL;
int num_body_d;
gboolean change_tersoff;

G_MODULE_EXPORT void update_cross_parameter (GtkEntry * res, gpointer data)
{
  int j, k;
  k = GPOINTER_TO_INT(data);
  const gchar * m = entry_get_text (res);
  double v = string_to_double ((gpointer)m);
  update_entry_double (res, v);
  j = combo_get_active (cross_box);
  cross[tmp_fbody -> id][j][k] = cross[j][tmp_fbody -> id][k] = v;
}

G_MODULE_EXPORT void changed_cross_combo (GtkComboBox * box, gpointer data)
{
  int i, j;
  i = combo_get_active ((GtkWidget *)box);
  for (j=0; j<3; j++)
  {
    // g_debug ("Updating entry:: id= %d, i= %d, j= %d", tmp_fbody -> id, i, j);
    update_entry_double (GTK_ENTRY(centry[j]), cross[tmp_fbody -> id][i][j]);
  }
}

GtkWidget * combo_cross (field_nth_body * body)
{
 GtkWidget * combo;
 combo = create_combo ();
 g_signal_connect (G_OBJECT(combo), "changed", G_CALLBACK(changed_cross_combo), NULL);
 if (tmp_field -> first_body[2] && tmp_fbody -> na[0] > -1)
 {
   field_nth_body * obody;
   obody = tmp_field -> first_body[2];
   while (obody)
   {
     combo_text_append (combo, get_active_atom(obody -> ma[0][0], obody -> a[0][0]) -> name);
     obody = obody -> next;
   }
 }
 return combo;
}

gchar * get_this_vdw_string ()
{
  gchar * str = NULL;
  if (tmp_field -> type <= CHARMMSI || tmp_field -> type > COMPASS)
  {
    str = g_strdup_printf ("<i>U</i>(r<sub>ij</sub>) = <b>Ɛ<sub>ij</sub></b> x [ (<b>r0<sub>ij</sub></b>/r<sub>ij</sub>)<sup>12</sup> - 2.0 (<b>r0<sub>ij</sub></b>/r<sub>ij</sub>)<sup>6</sup> ]\n"
                           "\t\twith <b>Ɛ<sub>ij</sub></b> = sqrt (Ɛ<sub>i</sub> x Ɛ<sub>j</sub>)\n"
                           "\t\tand <b>r0<sub>ij</sub></b> =  r0<sub>i</sub>/2.0 + r0<sub>j</sub>/2.0");
  }
  else if (tmp_field -> type == CVFF || tmp_field -> type == CVFF_AUG)
  {
    str = g_strdup_printf ("<i>U</i>(r<sub>ij</sub>) = (<b>A<sub>ij</sub></b>/r<sub>ij</sub>)<sup>12</sup> - 2.0 (<b>B<sub>ij</sub></b>/r<sub>ij</sub>)<sup>6</sup>\n"
                           "\t\twith <b>A<sub>ij</sub></b> = sqrt (A<sub>i</sub> x A<sub>j</sub>)\n"
                           "\t\tand <b>B<sub>ij</sub></b>  = sqrt (B<sub>i</sub> x B<sub>j</sub>)");
  }
  else if (tmp_field -> type >= CFF91 && tmp_field -> type <= COMPASS)
  {
    str = g_strdup_printf ("<i>U</i>(r<sub>ij</sub>) = <b>Ɛ<sub>ij</sub></b> x [ 2.0 (<b>r0<sub>ij</sub></b>/r<sub>ij</sub>)<sup>9</sup> - 3.0 (<b>r0<sub>ij</sub></b>/r<sub>ij</sub>)<sup>6</sup> ]\n"
                           "\t\twith <b>Ɛ<sub>ij</sub></b> = 2.0 sqrt (Ɛ<sub>i</sub> x Ɛ<sub>j</sub>) x (r0<sub>i</sub><sup>3</sup> r0<sub>j</sub><sup>3</sup>) / (r0<sub>i</sub><sup>6</sup> + r0<sub>j</sub><sup>6</sup>)\n"
                           "\t\tand <b>r0<sub>ij</sub></b> = [(r0<sub>i</sub><sup>6</sup> + r0<sub>j</sub><sup>6</sup>)/2.0] <sup>1/6</sup>");
  }
  return str;
}

GtkWidget * parameters_box (int obj, int key,  gchar ** words, float * data)
{
  int i;
  gchar * str = NULL;
  GtkWidget * vbox = create_vbox (BSEP);
  GtkWidget * hbox;
  GtkWidget * lab;
  GtkWidget * entry;
  object_is = obj;
 
  if (obj > -1 && key > -1)
  {
    if (fvalues[activef][obj][key] > 0)
    {
      for (i=0; i< fvalues[activef][obj][key]; i++)
      {
        if (obj == 11 && key == 0 && i == 0)
        {
          hbox = create_hbox (0);
          lab = markup_label (_("<u><i>Single terms:</i></u>"), 100, 50, 0.0, 0.5);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
          add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, hbox, FALSE, FALSE, 0);
        }
        hbox = create_hbox (0);
        if (activef)
        {
          if (((obj == 1 || obj == 2) && key == FBONDS-1 && (i == 0 || i == 1))
           || ((obj == 3 || obj == 4) && key == FANGLES-1 && (i == 0 || i == 1))
           || ((obj == 5 || obj == 6) && (key == FDIHEDRAL-2 || key == FDIHEDRAL-1) && (i == 0 || i == 1))
           || ((obj == 5 || obj == 6) && (key == 1 || key == 2) && i ==3))
          {
            str = g_strdup_printf (" <b><i>%s</i></b>", _(words[i]));
          }
          else
          {
            str = g_strdup_printf (" <b><i>%s</i></b>", words[i]);
          }
        }
        else
        {
          str = g_strdup_printf (" <b><i>%s</i></b>", words[i]);
        }
        lab = markup_label (str, 100, -1, 0.0, 0.5);
        g_free (str);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 50);
        entry = create_entry (G_CALLBACK(update_field_parameter), 100, 15, FALSE, GINT_TO_POINTER(i));
        update_entry_double (GTK_ENTRY(entry), data[i]);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, hbox, FALSE, FALSE, 0);
      }
      if (obj == 11 && key == 0)
      {
        cross_vbox = create_vbox (BSEP);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, cross_vbox, FALSE, FALSE, 0);
        cross_hbox = create_hbox (0);
        lab = markup_label (_("<u><i>Cross terms with atom:</i></u>"), 160, -1, 0.0, 0.5);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, cross_hbox, lab, FALSE, FALSE, 30);
        cross_box = combo_cross (tmp_fbody);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, cross_hbox, cross_box, FALSE, FALSE, 0);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, cross_vbox, cross_hbox, FALSE, FALSE, 10);
        for (i=11; i< 14; i++)
        {
          hbox = create_hbox (0);
          str = g_strdup_printf (" <b><i>%s</i></b>", words[i]);
          lab = markup_label (str, 120, -1, 0.0, 0.5);
          g_free (str);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 50);
          centry[i-11] = create_entry (G_CALLBACK(update_cross_parameter), 100, 15, FALSE, GINT_TO_POINTER(i-11));
          update_entry_double (GTK_ENTRY(centry[i-11]), cross[tmp_fbody -> id][0][i-11]);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, centry[i-11], FALSE, FALSE, 0);
          add_box_child_start (GTK_ORIENTATION_VERTICAL, cross_vbox, hbox, FALSE, FALSE, 0);
        }
        if (tmp_fbody -> na[0] < 0)
        {
          widget_set_sensitive (cross_vbox, FALSE);
        }
        else
        {
          combo_set_active (cross_box, 0);
        }
      }
    }
    else
    {
      hbox = create_hbox (0);
      str = g_strdup_printf (_("<i>Tabulated</i>"));
      lab = markup_label (str, 100, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, hbox, FALSE, FALSE, 0);
    }
    if (obj == 9 && tmp_field -> type >= CFF91 && tmp_field -> type <= COMPASS)
    {
      str = g_strdup_printf (_("In %s, non-bonded interactions are evaluated using: \n%s\n"
                               "Therefore the parameters provided by the force field are incompatible with the DL-POLY options."), 
                             field_acro[tmp_field -> type], get_this_vdw_string());
      hbox = create_hbox (0);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, markup_label (str, -1, -1, 0.5, 0.5), FALSE, FALSE, 50);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, hbox, FALSE, FALSE, 10);
      g_free (str);
    }
    else if (obj == 9 && key == 0 && (tmp_field -> type <= CVFF_AUG || tmp_field -> type > COMPASS))
    {
      if (tmp_field -> type < CVFF)
      {
        str = g_strdup_printf (_("In %s, 12-6 non-bonded interactions are evaluated using: \n%s\n<i><b>A</b></i> and <i><b>B</b></i>"
                                 " are calculated using Ɛ<sub>i/j</sub> and r0<sub>i/j</sub> provided by the force field parameters."),
                               field_acro[tmp_field -> type], get_this_vdw_string());
        if (tmp_field -> type > AMBER99)
        {
          str = g_strdup_printf (_("%s\nScaled 1-4 exclusion parameters, provided by the %s force field, are ignored."), str, field_acro[tmp_field -> type]);
        }
      }
      else
      {
        str = g_strdup_printf (_("In %s, 12-6 non-bonded interactions are evaluated using: \n%s\n<i><b>A</b></i> and <i><b>B</b></i>"
                                 " are calculated using A<sub>i/j</sub> and B<sub>i/j</sub> provided by the force field parameters."),
                               field_acro[tmp_field -> type], get_this_vdw_string());
      }
      hbox = create_hbox (0);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, markup_label (str, -1, -1, 0.5, 0.5), FALSE, FALSE, 50);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, hbox, FALSE, FALSE, 10);
      g_free (str);
    }
    else if ((obj == 3 || obj == 4) && tmp_field -> type > AMBER99 && tmp_field -> type < CVFF)
    {
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Urey-Bradley terms provided by the %s force field are ignored.\n"), field_acro[tmp_field -> type]);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, markup_label (str, -1, -1, 0.5, 0.5), FALSE, FALSE, 50);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, hbox, FALSE, FALSE, 10);
      g_free (str);
    }
  }
  return vbox;
}

gchar * field_str (int a)
{
  gchar * str = g_strdup_printf (_("External field"));
  if (a > -1)
  {
    str = g_strdup_printf ("%s: <b>%s</b>", str, (activef) ? fnames[activef][15][a] : _(fnames[activef][15][a]));
  }
  return str;
}

gboolean tersoff_question ()
{
  gchar * text = _("Are you sure to change the type of Tersoff potential ?\n"
                   "<i>Tersoff (ter)</i> and <i>KIHS (kihs)</i> forms cannot be mixed\n"
                   "Therefore this choice will affect <b>all</b> Tersoff potential(s).\n"
                   "Any previous parameters will be erased !");
  if (num_body_d > 1)
  {
    return ask_yes_no (_("Change Tersoff potential ?!"), text, GTK_MESSAGE_QUESTION, field_assistant);
  }
  else
  {
    change_tersoff = TRUE;
    return TRUE;
  }
}

GtkWidget * param_prop_param_box (int pid)
{
  switch (pid)
  {
    case MOLIMIT-9:
      return parameters_box (0, tmp_ftet -> key, fvars_teth[activef][tmp_ftet -> key], tmp_ftet -> val);
      break;
    case MOLIMIT-1:
      return parameters_box (pid-6, tmp_fprop -> key, fvars_inversion[activef][tmp_fprop -> key], tmp_fprop -> val);
      break;
    case MOLIMIT:
      return parameters_box (pid-6, tmp_fbody -> key, fvars_vdw[activef][tmp_fbody -> key], tmp_fbody -> val);
      break;
    case MOLIMIT+1:
      return parameters_box (pid-6, tmp_fbody -> key, fvars_met[activef][tmp_fbody -> key], tmp_fbody -> val);
      break;
    case MOLIMIT+2:
      return parameters_box (pid-6, tmp_fbody -> key, fvars_ters[activef][tmp_fbody -> key], tmp_fbody -> val);
      break;
    case MOLIMIT+3:
      return parameters_box (pid-6, tmp_fbody -> key, fvars_tbd[activef][tmp_fbody -> key], tmp_fbody -> val);
      break;
    case MOLIMIT+4:
      return parameters_box (pid-6, tmp_fbody -> key, fvars_fbd[activef][tmp_fbody -> key], tmp_fbody -> val);
      break;
    case SEXTERN:
       return parameters_box (14, tmp_fext -> key, fvars_fext[activef][tmp_fext -> key], tmp_fext -> val);
       break;
    default:
      switch ((pid-7)/2)
      {
        case 0:
          return parameters_box (pid-6, tmp_fprop -> key, fvars_bond[activef][tmp_fprop -> key], tmp_fprop -> val);
          break;
        case 1:
          return parameters_box (pid-6, tmp_fprop -> key, fvars_angle[activef][tmp_fprop -> key], tmp_fprop -> val);
          break;
        default:
          return parameters_box (pid-6, tmp_fprop -> key, fvars_dihedral[activef][tmp_fprop -> key], tmp_fprop -> val);
          break;
      }
      break;
  }
}

G_MODULE_EXPORT void changed_field_key_combo (GtkComboBox * box, gpointer data)
{
  int i, j;
  gboolean changeit = FALSE;
  i = GPOINTER_TO_INT(data);
  j = combo_get_active ((GtkWidget *)box);
  if (i > 6 && i < MOLIMIT)
  {
    if (j != tmp_fprop -> key)
    {
      tmp_fprop -> key = j;
      tmp_fprop -> val = NULL;
      tmp_fprop -> val = allocfloat (fvalues[activef][i-6][j]);
      changeit = TRUE;
    }
  }
  else
  {
    switch (i)
    {
      case 6:
        if (j != tmp_ftet -> key)
        {
          tmp_ftet -> key = j;
          tmp_ftet -> val = NULL;
          tmp_ftet -> val = allocfloat (fvalues[activef][0][j]);
          changeit = TRUE;
        }
        break;
      case SEXTERN:
        if (j != tmp_fext -> key)
        {
          tmp_fext -> key = j;
          gtk_label_set_text (GTK_LABEL(body_lab), field_str(tmp_fext -> key));
          gtk_label_set_use_markup (GTK_LABEL(body_lab), TRUE);
          tmp_fext -> val = NULL;
          tmp_fext -> val = allocfloat (fvalues[activef][SEXTERN-6][j]);
          changeit = TRUE;
        }
        break;
      default:
        if (j != tmp_fbody -> key)
        {
          changeit = TRUE;
          if (i == MOLIMIT+2) changeit = tersoff_question ();
          if (changeit)
          {
            tmp_fbody -> key = j;
            tmp_fbody -> val = NULL;
            tmp_fbody -> val = allocfloat (fvalues[activef][i-6][j]);
            if (i == MOLIMIT+2 && j == 0)
            {
              cross = alloctdouble (num_body_d, num_body_d, 3);
            }
            else if (j == 1 && cross != NULL)
            {
              g_free (cross);
              cross = NULL;
            }
          }
          else
          {
            combo_set_active ((GtkWidget *)box, tmp_fbody -> key);
          }
        }
        break;
    }
  }
  if (changeit)
  {
    if (ff_p_combo[0]) combo_set_active (ff_p_combo[0], 0);
    if (ff_p_combo[1]) combo_set_active (ff_p_combo[1], 0);
    p_box = destroy_this_widget (p_box);
    p_box = param_prop_param_box (i);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, param_box, p_box, FALSE, FALSE, 0);
    show_the_widgets (param_box);
  }
 
}
 
#ifdef GTK4
G_MODULE_EXPORT void visualize_it (GtkCheckButton * but, gpointer data)
#else
G_MODULE_EXPORT void visualize_it (GtkToggleButton * but, gpointer data)
#endif
{
  int i, j;
  i = GPOINTER_TO_INT (data);
  j = 0;
  toviz.c = button_get_status ((GtkWidget *)but);
  if (i < MOLIMIT)
  {
    j = combo_get_active (combo_mol[i-1]);
    tmp_fmol = get_active_field_molecule (j);
  }
  if (is_moy)
  {
    visualize_object (i, row_id, j);
    if (i < MOLIMIT) check_to_visualize_properties_for_this_field_mol (i, j);
  }
  else
  {
    visualize_single_struct (i, row_id, j, edit_atids);
    if (i < MOLIMIT)
    {
      check_to_visualize_properties_for_this_field_mol (i, j);
      tmp_fprop -> show = toviz.c;
    }
  }
  if (i < MOLIMIT) tmp_fmol = get_active_field_molecule (j);
  init_default_shaders (tmp_view);
}
 
#ifdef GTK4
G_MODULE_EXPORT void select_it (GtkCheckButton * but, gpointer data)
#else
G_MODULE_EXPORT void select_it (GtkToggleButton * but, gpointer data)
#endif
{
  int i, j;
  i = GPOINTER_TO_INT (data);
  toviz.c = button_get_status ((GtkWidget *)but);
  if (i < MOLIMIT) j = combo_get_active (combo_mol[i-1]);
  if (is_moy)
  {
    select_object (i, row_id, j);
  }
  else
  {
    tmp_fprop -> use = toviz.c;
  }
}
 
extern ColRGBA init_color (int id, int numid);
extern int active_sel;
extern int a_ato;
extern int ** sel_at;
extern void run_select_atom_dialog (GtkDialog * select_dialog, gint response_id, gpointer data);
GtkWidget * add_tree;
int vdw_id;

G_MODULE_EXPORT void field_molecule_select_atom_id (GtkCellRendererToggle * cell_renderer, gchar * string_path, gpointer data)
{
  GtkTreeStore ** model = (GtkTreeStore **)data;
  GtkTreeIter iter;
  int h, i, j, k, l, m, n;
  GtkTreePath * path = gtk_tree_path_new_from_string (string_path);
  gtk_tree_model_get_iter (GTK_TREE_MODEL(* model), & iter, path);
  gtk_tree_model_get (GTK_TREE_MODEL(* model), & iter, 0, & i, -1);
  if (gtk_cell_renderer_toggle_get_active(cell_renderer))
  {
    toviz.c = 0;
    a_ato --;
  }
  else
  {
    toviz.c = 1;
    a_ato ++;
  }
  if (active_sel < 11)
  {
    sel_at[0][i-1] = toviz.c;
  }
  switch (active_sel)
  {
    case 0:
      j = i-1;
      break;
    case 1:
      j = i-1;
      break;
    case 2:
      j = tmp_fshell -> id;
      break;
    case 3:
      j = tmp_fshell -> id;
      break;
    case 4:
      j = tmp_fcons -> id;
      break;
    case 5:
      j = tmp_fcons -> id;
      break;
    case 6:
      j = tmp_fpmf -> id;
      break;
    case 7:
      j = tmp_fpmf -> id;
      break;
    case 8:
      j = tmp_frig -> id;
      break;
    case 9:
      j = tmp_ftet -> id;
      break;
    default:
      j = tmp_fbody -> id;
      break;
  }
  if (active_sel < 10)
  {
    for (k=0; k<tmp_fmol -> multi; k++)
    {
      l = tmp_fmol -> atoms_id[i-1][k].a;
      m = tmp_fmol -> atoms_id[i-1][k].b;
      n = get_active_atom (tmp_fmol -> id, l) -> list[m];
      field_selection (n, toviz.c, toviz.c, i-1);
    }
  }
  else
  {
    h = vdw_id = sel_at[0][i-1];
    field_nth_body * tmp_fbo = tmp_field -> first_body[0];
    for (k=0; k<tmp_field -> nbody[0]; k++)
    {
      if (tmp_fbo -> id == h)
      {
        visualize_body (toviz.c, h, tmp_fbo);
        break;
      }
      else if (tmp_fbo -> next != NULL)
      {
        tmp_fbo = tmp_fbo -> next;
      }
    }
  }
  init_default_shaders (tmp_view);
  j = (active_sel > 5 && active_sel < 8) ? 1 : 0;
  gtk_tree_store_set (* model, & iter, 3+j, toviz.c, -1);
  hide_the_widgets (add_tree);
  show_the_widgets (add_tree);
}

void select_atom_set_color (GtkCellRenderer * renderer, int i)
{
  set_renderer_color (i, renderer, init_color (i-1, num_field_objects));
}

void select_atom_set_cmv (GtkTreeViewColumn * col, GtkCellRenderer * renderer, GtkTreeModel * mod, GtkTreeIter * iter, gpointer data)
{
  int h, i, j, k;
  gtk_tree_model_get (mod, iter, 0, & h, -1);
  if (active_sel < 11)
  {
    gtk_tree_model_get (mod, iter, 1, & i, -1);
  }
  else
  {
    i = ! h;
  }
  j = GPOINTER_TO_INT(data);
  switch (j)
  {
    case 0:
      gtk_cell_renderer_set_visible (renderer, ! i);
      break;
    case 1:
      if (active_sel > 10)
      {
        set_renderer_markup (mod, iter, renderer, 1);
        i = h;
      }
      gtk_cell_renderer_set_visible (renderer, i);
      break;
    case 2:
      set_renderer_markup (mod, iter, renderer, 2);
      gtk_cell_renderer_set_visible (renderer, i);
      break;
    case 3:
      gtk_cell_renderer_set_visible (renderer, ! i);
      break;
    case 4:
      if ((active_sel > 1 && active_sel < 6) || active_sel > 8)
      {
        if (active_sel > 10)
        {
          gtk_tree_model_get (mod, iter, 3, & k, -1);
        }
        else
        {
          k = sel_at[0][h-1];
        }
        if (k || ! a_ato)
        {
          gtk_cell_renderer_set_visible (renderer, TRUE);
        }
        else
        {
          gtk_cell_renderer_set_visible (renderer, ! a_ato);
        }
      }
      else
      {
        gtk_cell_renderer_set_visible (renderer, ! i);
      }
      break;
  }
  if (active_sel < 2 && j < 4)
  {
    for (i=0; i<tmp_fat -> num/tmp_fmol -> multi; i++)
    {
      if (sel_at[0][i]+1 == abs(h)) break;
    }
    if (sel_at[1][i])
    {
      select_atom_set_color (renderer, sel_at[0][i]+1);
    }
    else
    {
      select_atom_set_color (renderer, sel_at[1][i]);
    }
  }
  else if (j < 4)
  {
    if (h < 0) h = -h;
    if (active_sel < 11)
    {
      k = (sel_at[0][h-1]) ? h : 0;
    }
    else
    {
      gtk_tree_model_get (mod, iter, 3, & k, -1);
    }
    select_atom_set_color (renderer, k);
  }
}
 
float * val_at;
 
/*
* G_MODULE_EXPORT void edit_unit_weight (GtkCellRendererText * cell, gchar * path_string, gchar * new_text, gpointer data)
 
  \brief on edit unit weight callback
 
  \param cell the GtkCellRendererToggle sending the signal
  \param string_path the path in the tree store
*  gchar
  \param data the associated data pointer
*/
G_MODULE_EXPORT void edit_unit_weight (GtkCellRendererText * cell, gchar * path_string, gchar * new_text, gpointer data)
{
  GtkTreeStore ** model = (GtkTreeStore **)data;
  GtkTreeIter iter;
  int i;
  GtkTreePath * path = gtk_tree_path_new_from_string (path_string);
  gtk_tree_model_get_iter (GTK_TREE_MODEL(* model), & iter, path);
  gtk_tree_model_get (GTK_TREE_MODEL(* model), & iter, 0, & i, -1);
  val_at[i] = string_to_double ((gpointer)new_text);
}

G_MODULE_EXPORT void select_atom_id_from_fied_molecule (GtkButton * but, gpointer data)
{
  int i, j, k, l, m, n, o, p, q;
  GtkTreeIter id_level;
  GtkTreeIter atom_level;
  GtkTreeViewColumn * ato_col[5];
  GtkCellRenderer * ato_cell[5];
  gchar * ato_title[5] = {i18n("Atom Id."), i18n("Fragment"), i18n("Atom"), i18n("Weight (1)"), i18n("Viz.3D & Select")};
  gchar * nbd_title[5] = {i18n("Atom Id."), i18n("Field atom"), i18n("Field molecule(s)"), " ", i18n("Viz.3D & Select")};
  gchar * ctype[5]={"text", "text", "text", "text", "active"};
  GType col_type[2][5] = {{G_TYPE_INT, G_TYPE_INT, G_TYPE_STRING, G_TYPE_BOOLEAN, G_TYPE_FLOAT},
                          {G_TYPE_INT, G_TYPE_INT, G_TYPE_STRING, G_TYPE_FLOAT, G_TYPE_BOOLEAN}};
  GType cbl_type[4] = {G_TYPE_INT, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_BOOLEAN};
  field_object = 1;
  active_sel = GPOINTER_TO_INT (data);
  gboolean add;
  gchar * str;
  q = (active_sel > 5 && active_sel < 8) ? 1 : 0;
  switch (active_sel)
  {
    case 0:
      str = g_strdup_printf (_("Please select the new atom(s)"));
      o = -1;
      p = -1;
      break;
    case 1:
      str = g_strdup_printf (_("Please select the atom(s) to freeze / unfreeze"));
      o = -1;
      p = -1;
      break;
    case 2:
      str = g_strdup_printf (_("Please select the core atom"));
      o = tmp_fshell -> ia[0]-1;
      p = tmp_fshell -> ia[1]-1;
      break;
    case 3:
      str = g_strdup_printf (_("Please select the atom(s) to shell"));
      o = tmp_fshell -> ia[1]-1;
      p = tmp_fshell -> ia[0]-1;
      break;
    case 4:
      str = g_strdup_printf (_("Please select the first atom"));
      o = tmp_fcons -> ia[0]-1;
      p = tmp_fcons -> ia[1]-1;
      break;
    case 5:
      str = g_strdup_printf (_("Please select the second atom"));
      o = tmp_fcons -> ia[1]-1;
      p = tmp_fcons -> ia[0]-1;
      break;
    case 6:
      str = g_strdup_printf (_("Please select the atom(s) in the first unit"));
      break;
    case 7:
      str = g_strdup_printf (_("Please select the atom(s) in the second unit"));
      break;
    case 8:
      str = g_strdup_printf (_("Please select the atom(s) in the rigid unit"));
      p = -1;
      break;
    case 9:
      str = g_strdup_printf (_("Please select the tethered atom"));
      o = tmp_ftet -> num-1;
      p = -1;
      break;
    case 11:
      if (tmp_fbody -> bd == 2)
      {
        str = g_strdup_printf (_("Please select the type of field atom"));
      }
      else
      {
        str = g_strdup_printf (_("Please select the first type of field atom"));
      }
      break;
    case 12:
      str = g_strdup_printf (_("Please select the second type of field atom"));
      break;
    case 13:
      str = g_strdup_printf (_("Please select the third type of field atom"));
      break;
    case 14:
      str = g_strdup_printf (_("Please select the fourth type of field atom"));
      break;
  }
  GtkWidget * amol = dialogmodal (str, GTK_WINDOW(field_assistant));
  g_free (str);
  gtk_dialog_add_button (GTK_DIALOG(amol), _("Apply"), GTK_RESPONSE_APPLY);
  a_ato = 0;
  GtkTreeStore * add_model;
  if (active_sel < 11)
  {
    add_model = gtk_tree_store_newv (4+q, col_type[q]);
  }
  else
  {
    add_model = gtk_tree_store_newv (4, cbl_type);
  }
  add_tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(add_model));
  if (active_sel < 11)
  {
    num_field_objects = tmp_fmol -> mol -> natoms;
  }
 
  for (i=0; i<4+q; i++)
  {
    k = i;
    if (i < 3+q)
    {
      ato_cell[i] = gtk_cell_renderer_text_new ();
    }
    else
    {
      if (! q) k ++;
      ato_cell[i] = gtk_cell_renderer_toggle_new ();
      if (active_sel > 1) gtk_cell_renderer_toggle_set_radio (GTK_CELL_RENDERER_TOGGLE(ato_cell[i]), TRUE);
      g_signal_connect (G_OBJECT(ato_cell[i]), "toggled", G_CALLBACK(field_molecule_select_atom_id), & add_model);
    }
    if (active_sel < 11)
    {
      ato_col[i] = gtk_tree_view_column_new_with_attributes (_(ato_title[k]), ato_cell[i], ctype[k], i, NULL);
    }
    else
    {
      ato_col[i] = gtk_tree_view_column_new_with_attributes ((k != 3) ? _(nbd_title[k]) : nbd_title[k], ato_cell[i], ctype[k], i, NULL);
    }
    gtk_tree_view_append_column (GTK_TREE_VIEW(add_tree), ato_col[i]);
    gtk_tree_view_column_set_alignment (ato_col[i], 0.5);
    gtk_tree_view_column_set_cell_data_func (ato_col[i], ato_cell[i], select_atom_set_cmv, GINT_TO_POINTER(k), NULL);
    if (q && i == 3)
    {
      g_object_set (ato_cell[i], "editable", TRUE, NULL);
      g_signal_connect (G_OBJECT(ato_cell[i]), "edited", G_CALLBACK(edit_unit_weight), & add_model);
    }
  }
  // Clean 3D viz
  field_unselect_all ();
  // fill model
  if (active_sel < 2)
  {
    sel_at = allocdint (2, tmp_fat -> num/tmp_fmol -> multi);
  }
  else if (active_sel < 11)
  {
    sel_at = allocdint (2, tmp_fmol -> mol -> natoms);
  }
  else
  {
    field_nth_body * tmp_fbo = tmp_field -> first_body[0];
    k = 0;
    for (i=0; i<tmp_field -> nbody[0]; i++)
    {
      if (g_strcmp0 (get_active_atom (tmp_fbo -> ma[0][0], tmp_fbo -> a[0][0]) -> name,
                     get_active_atom (tmp_fbo -> ma[1][0], tmp_fbo -> a[1][0]) -> name) == 0) k ++;
      if (tmp_fbo -> next != NULL) tmp_fbo = tmp_fbo -> next;
    }
    sel_at = allocdint (1, k);
    num_field_objects = k;
  }
 
  if (active_sel < 2)
  {
    l = 0;
    for (i=0; i<tmp_fmol -> mol -> natoms; i++)
    {
      if (tmp_fmol -> atoms_id[i][0].a == tmp_fat -> id)
      {
        j = tmp_fmol -> atoms_id[i][0].b;
        k = tmp_fat -> list_id[j];
        sel_at[0][l] = k;
        if (active_sel)
        {
          sel_at[1][l] = tmp_fat -> frozen_id[j];
        }
        else
        {
          sel_at[1][l] = 0;
        }
        l ++;
      }
    }
    for (i=0; i<tmp_fat -> num/tmp_fmol -> multi; i++)
    {
      gtk_tree_store_append (add_model, & id_level, NULL);
      gtk_tree_store_set (add_model, & id_level, 0, sel_at[0][i]+1, 1, 0, 3, 0, -1);
      if (sel_at[1][i])
      {
        field_molecule_select_atom_id (GTK_CELL_RENDERER_TOGGLE(ato_cell[3]),
                                       gtk_tree_path_to_string(gtk_tree_model_get_path(GTK_TREE_MODEL(add_model), & id_level)),
                                       & add_model);
      }
      for (j=0; j< tmp_fmol -> multi; j++)
      {
        gtk_tree_store_append (add_model, & atom_level, & id_level);
        k = sel_at[0][i];
        l = tmp_fmol -> atoms_id[k][j].b;
        m = tmp_fat -> list[l];
        str = g_strdup_printf ("%s<sub>%d</sub>", exact_name(tmp_proj -> chemistry -> label[tmp_fat -> sp]), m+1);
        gtk_tree_store_set (add_model, & atom_level, 0, -(sel_at[0][i]+1), 1, tmp_fmol -> fragments[j]+1, 2, str, -1);
        g_free (str);
      }
    }
  }
  else if (active_sel < 4)
  {
    for (i=0; i<tmp_fmol -> mol -> natoms; i++)
    {
      if (i != p)
      {
        gtk_tree_store_append (add_model, & id_level, NULL);
        gtk_tree_store_set (add_model, & id_level, 0, i+1, 1, 0, 3, 0, -1);
        tmp_fat =  get_active_atom (tmp_fmol -> id, tmp_fmol -> atoms_id[i][0].a);
        for (j=0; j< tmp_fmol -> multi; j++)
        {
          gtk_tree_store_append (add_model, & atom_level, & id_level);
          k = tmp_fat -> list[tmp_fmol -> atoms_id[i][j].b];
          str = g_strdup_printf ("%s<sub>%d</sub>", exact_name(tmp_proj -> chemistry -> label[tmp_fat -> sp]), k+1);
          gtk_tree_store_set (add_model, & atom_level, 0, -(i+1), 1, tmp_fmol -> fragments[j]+1, 2, str, -1);
          g_free (str);
        }
      }
    }
  }
  else if (active_sel < 6 || (active_sel > 7 && active_sel < 11))
  {
    for (i=0; i<tmp_fmol -> mol -> natoms; i++)
    {
      if (i != p)
      {
        tmp_fat = get_active_atom (tmp_fmol -> id, tmp_fmol -> atoms_id[i][0].a);
        gtk_tree_store_append (add_model, & id_level, NULL);
        if (active_sel < 6 || active_sel == 9)
        {
          if (i == o)
          {
            k = 1;
          }
          else
          {
            k = 0;
          }
        }
        else
        {
          k = 0;
          if (tmp_frig -> num > 0)
          {
            for (j=0; j<tmp_frig -> num; j++)
            {
              if (i == tmp_frig -> list[j])
              {
                k = 1;
                break;
              }
            }
          }
        }
        sel_at[0][i] = k;
        gtk_tree_store_set (add_model, & id_level, 0, i+1, 1, 0, 3, 0, -1);
        if (sel_at[0][i])
        {
          field_molecule_select_atom_id (GTK_CELL_RENDERER_TOGGLE(ato_cell[3]),
                                         gtk_tree_path_to_string(gtk_tree_model_get_path(GTK_TREE_MODEL(add_model), & id_level)),
                                         & add_model);
        }
        for (j=0; j< tmp_fmol -> multi; j++)
        {
          gtk_tree_store_append (add_model, & atom_level, & id_level);
          l = tmp_fat -> list[tmp_fmol -> atoms_id[i][j].b];
          str = g_strdup_printf ("%s<sub>%d</sub>", exact_name(tmp_proj -> chemistry -> label[tmp_fat -> sp]), l+1);
          gtk_tree_store_set (add_model, & atom_level, 0, -(i+1), 1, tmp_fmol -> fragments[j]+1, 2, str, -1);
          g_free (str);
        }
      }
    }
  }
  else if (active_sel > 10)
  {
    m = active_sel-11;
    field_nth_body * tmp_fbo = tmp_field -> first_body[0];
    k = 0;
    for (i=0; i<tmp_field -> nbody[0]; i++)
    {
      // need to find the atoms name
      if (g_strcmp0 (get_active_atom (tmp_fbo -> ma[0][0], tmp_fbo -> a[0][0]) -> name,
                 get_active_atom (tmp_fbo -> ma[1][0], tmp_fbo -> a[1][0]) -> name) == 0)
      {
        add = TRUE;
        for (j=0; j < body_at(tmp_fbody -> bd); j++)
        {
          if (j != m && tmp_fbody -> na[j] > -1)
          {
            if (g_strcmp0 (get_active_atom (tmp_fbo -> ma[0][0], tmp_fbo -> a[0][0]) -> name,
                       get_active_atom (tmp_fbody -> ma[j][0], tmp_fbody -> a[j][0]) -> name) == 0) add = FALSE;
          }
        }
        if (add)
        {
          gtk_tree_store_append (add_model, & id_level, NULL);
          l = 0;
          if (tmp_fbody -> na[m] > -1)
          {
            if (g_strcmp0 (get_active_atom (tmp_fbo -> ma[0][0], tmp_fbo -> a[0][0]) -> name,
                       get_active_atom (tmp_fbody -> ma[m][0], tmp_fbody -> a[m][0]) -> name) == 0)
            {
              l = 1;
              vdw_id = tmp_fbo -> id;
              a_ato = 1;
            }
          }
          gtk_tree_store_set (add_model, & id_level, 0, k+1, 1,
                              exact_name(get_active_atom (tmp_fbo -> ma[0][0], tmp_fbo -> a[0][0]) -> name), 3, l, -1);
          sel_at[0][k] = tmp_fbo -> id;
          for (j=0; j<tmp_fbo -> na[0]; j++)
          {
            gtk_tree_store_append (add_model, & atom_level, & id_level);
            gtk_tree_store_set (add_model, & atom_level, 0, 0, 2, get_active_field_molecule(tmp_fbo -> ma[0][j]) -> name, 3, 0, -1);
          }
        }
        k ++;
      }
      if (tmp_fbo -> next != NULL) tmp_fbo = tmp_fbo -> next;
    }
  }
  else
  {
    val_at = allocfloat (tmp_fmol -> mol -> natoms);
    if (active_sel == 5)
    {
      k = 1;
      m = 0;
    }
    else
    {
      k = 0;
      m = 1;
    }
    for (i=0; i<tmp_fmol -> mol -> natoms; i++)
    {
      add = TRUE;
      if (tmp_fpmf -> num[k] > 0)
      {
        for (l=0; l<tmp_fpmf -> num[k]; l++)
        {
          if (i == tmp_fpmf -> list[k][l])
          {
            add = FALSE;
            break;
          }
        }
      }
      if (add)
      {
        tmp_fat = get_active_atom (tmp_fmol -> id, tmp_fmol -> atoms_id[i][0].a);
        gtk_tree_store_append (add_model, & id_level, NULL);
        n = 0;
        if (tmp_fpmf -> num[m] > 0)
        {
          for (l=0; l<tmp_fpmf -> num[m]; l++)
          {
            if (i == tmp_fpmf -> list[m][l])
            {
              n = 1;
              break;
            }
          }
        }
        val_at[i] = tmp_fat -> mass;
        sel_at[0][i] = n;
        gtk_tree_store_set (add_model, & id_level, 0, i+1, 1, 0, 3, val_at[i], 4, 0, -1);
        if (sel_at[0][i])
        {
          field_molecule_select_atom_id (GTK_CELL_RENDERER_TOGGLE(ato_cell[4]),
                                         gtk_tree_path_to_string(gtk_tree_model_get_path(GTK_TREE_MODEL(add_model), & id_level)),
                                         & add_model);
        }
        for (l=0; l< tmp_fmol -> multi; l++)
        {
          gtk_tree_store_append (add_model, & atom_level, & id_level);
          n = tmp_fat -> list[tmp_fmol -> atoms_id[i][l].b];
          str = g_strdup_printf ("%s<sub>%d</sub>", exact_name(tmp_proj -> chemistry -> label[tmp_fat -> sp]), n+1);
          gtk_tree_store_set (add_model, & atom_level, 0, -(i+1), 1, tmp_fmol -> fragments[l]+1, 2, str, -1);
          g_free (str);
        }
      }
    }
  }
  g_object_unref (add_model);
 
  if (active_sel < 2)
  {
    j = tmp_fat -> num/tmp_fmol -> multi;
  }
  else
  {
    j = num_field_objects;
  }
  i = ((j+1)*37 < 500) ? (j+1)*37 : 500;
  if (active_sel > 10) q = 1;
  GtkWidget * vbox = dialog_get_content_area (amol);
  GtkWidget * scrollsets = create_scroll (vbox, 320+q*100, i, GTK_SHADOW_ETCHED_IN);
  add_container_child (CONTAINER_SCR, scrollsets, add_tree);
 
  if (q && active_sel < 11)
  {
    str = g_strdup_printf (_(" <b>(1)</b> if all 0.0 then atomic weight(s) will be used by DL-POLY"));
    add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, markup_label(str, -1, -1, 0.0, 0.5), FALSE, FALSE, 0);
    g_free (str);
  }
  if (active_sel < 2)
  {
    str = g_strdup_printf (_("The atom(s) above will be described\n"
                             "in the force field using the parameters\n"
                             "of the <b>%s</b> field atom.\n"),
                           tmp_fat -> name);
    add_box_child_start (GTK_ORIENTATION_VERTICAL, vbox, markup_label(str, -1, -1, 0.5, 0.5), FALSE, FALSE, 0);
    g_free (str);
  }
  show_the_widgets (amol);
  switch (active_sel)
  {
    case 0:
      run_this_gtk_dialog (amol, G_CALLBACK(run_add_atom_dialog), NULL);
      break;
    default:
      run_this_gtk_dialog (amol, G_CALLBACK(run_select_atom_dialog), GINT_TO_POINTER(active_sel));
      if (active_sel == 1)
      {
        str = g_strdup_printf (_("%d atom(s)"), tmp_fat -> frozen);
        if (but) gtk_button_set_label (but, str);
      }
      break;
  }
  g_free (sel_at);
  if (q && active_sel < 11) g_free (val_at);
}
 
GtkWidget * av_lgt;

void update_field_dist (float v)
{
  gchar * str;
  if (v < 0.0)
  {
    str = g_strdup_printf (" ");
  }
  else
  {
    str = g_strdup_printf ("<b>%8.3f</b>", v);
  }
  gtk_label_set_text (GTK_LABEL(av_lgt), str);
  gtk_label_set_use_markup (GTK_LABEL(av_lgt), TRUE);
}

gchar * body_str (int a)
{
  int i, j;
  j = body_at (a);
  gchar * str = g_strdup_printf ("%s <b>", _(felemt[a+MOLIMIT+1]));
  for (i=0; i<j; i++)
  {
    if (tmp_fbody -> na[i] > -1)
    {
      str = g_strdup_printf ("%s%s", str, get_active_atom (tmp_fbody -> ma[i][0], tmp_fbody -> a[i][0]) -> name);
    }
    if (i < j-1 && j > 1) str = g_strdup_printf ("%s - ", str);
  }
  str = g_strdup_printf ("%s</b>", str);
  return str;
}

G_MODULE_EXPORT void selection_button (GtkButton * but, gpointer data)
{
  select_atom_id_from_fied_molecule (NULL, data);
  int i, j, k, l, m, n, o, p, q, r;
  i = GPOINTER_TO_INT(data);
  gchar * stra = NULL;
  gchar * strb = NULL;
  if (i == 2 || i == 3)
  {
    j=i-2;
    if (! tmp_fshell -> ia[j])
    {
      stra = g_strdup_printf (_("Not picked yet !"));
      strb = g_strdup_printf (DELETEB);
    }
    else
    {
      k = tmp_fshell -> ia[j]-1;
      l = tmp_fmol -> atoms_id[k][0].a;
      stra = g_strdup_printf ("%s - %d", exact_name(tmp_proj -> chemistry -> label[get_active_atom (tmp_fmol -> id, l) -> sp]), tmp_fshell -> ia[j]);
      strb = g_strdup_printf (APPLY);
    }
  }
  else if (i == 4 || i == 5)
  {
    j=i-4;
    if (! tmp_fcons -> ia[j])
    {
      stra = g_strdup_printf (_("Not picked yet !"));
      strb = g_strdup_printf (DELETEB);
    }
    else
    {
      k = tmp_fcons -> ia[j] - 1;
      l = tmp_fmol -> atoms_id[k][0].a;
      stra = g_strdup_printf ("%s - %d", exact_name(tmp_proj -> chemistry -> label[get_active_atom (tmp_fmol -> id, l) -> sp]), tmp_fcons -> ia[j]);
      strb = g_strdup_printf (APPLY);
    }
  }
  else if (i == 6 || i == 7)
  {
    j=i-6;
    if (! tmp_fpmf -> num[j])
    {
      stra = g_strdup_printf (_("Not picked yet !"));
      strb = g_strdup_printf (DELETEB);
    }
    else
    {
      stra = g_strdup_printf (_("%d atom(s)"), tmp_fpmf -> num[j]);
      strb = g_strdup_printf (APPLY);
    }
  }
  else if (i == 8)
  {
    j=0;
    if (! tmp_frig -> num)
    {
      stra = g_strdup_printf (_("Not picked yet !"));
      strb = g_strdup_printf (DELETEB);
    }
    else
    {
      stra = g_strdup_printf (_("%d atom(s)"), tmp_frig -> num);
      strb = g_strdup_printf (APPLY);
    }
  }
  else if (i == 9)
  {
    j=0;
    if (! tmp_ftet -> num)
    {
      stra = g_strdup_printf (_("Not picked yet !"));
      strb = g_strdup_printf (DELETEB);
    }
    else
    {
      k = tmp_fmol -> atoms_id[tmp_ftet -> num - 1][0].a;
      stra = g_strdup_printf ("%s - %d", exact_name(tmp_proj -> chemistry -> label[get_active_atom (tmp_fmol -> id, k) -> sp]), tmp_ftet -> num);
      strb = g_strdup_printf (APPLY);
    }
  }
  else if (i == 11 || i == 12 || i == 13 || i == 14)
  {
    j=i-11;
    if (tmp_fbody -> na[j] < 0)
    {
      stra = g_strdup_printf (_("Not picked yet !"));
      strb = g_strdup_printf (DELETEB);
    }
    else
    {
      stra = g_strdup_printf ("%s", exact_name(get_active_atom (tmp_fbody -> ma[j][0]-1, tmp_fbody -> a[j][0]) -> name));
      strb = g_strdup_printf (APPLY);
    }
    if (tmp_fbody -> bd == 2)
    {
      cross_box = destroy_this_widget (cross_box);
      cross_box = combo_cross (tmp_fbody);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, cross_hbox, cross_box, FALSE, FALSE, 0);
      show_the_widgets (cross_box);
    }
    if (tmp_fbody -> na[j] < 0)
    {
      widget_set_sensitive (cross_vbox, FALSE);
    }
    else
    {
      widget_set_sensitive (cross_vbox, TRUE);
      combo_set_active (cross_box, 0);
    }
    gtk_label_set_text (GTK_LABEL(body_lab), body_str (tmp_fbody -> bd));
    gtk_label_set_use_markup (GTK_LABEL(body_lab), TRUE);
  }
  set_image_from_icon_name (img_but[j], strb);
  g_free (strb);
  if (i == 4 || i == 5)
  {
    if (tmp_fcons -> ia[0] && tmp_fcons -> ia[1])
    {
      // update_distance
      tmp_fcons -> av = 0.0;
      for (k=0; k<tmp_fmol -> multi; k++)
      {
        l = tmp_fmol -> atoms_id[tmp_fcons -> ia[0]-1][k].a;
        m = tmp_fmol -> atoms_id[tmp_fcons -> ia[0]-1][k].b;
        n = get_active_atom (tmp_fmol -> id, l) -> list[m];
        l = tmp_fmol -> atoms_id[tmp_fcons -> ia[1]-1][k].a;
        m = tmp_fmol -> atoms_id[tmp_fcons -> ia[1]-1][k].b;
        o = get_active_atom (tmp_fmol -> id, l) -> list[m];
        tmp_fcons -> av += distance_3d (& tmp_proj -> cell, 0, & tmp_proj -> atoms[0][n], & tmp_proj -> atoms[0][o]).length;
      }
      tmp_fcons -> av /= tmp_fmol -> multi;
    }
    update_field_dist (tmp_fcons -> av);
  }
  else if (i == 6 || i == 7)
  {
    if (tmp_fpmf -> num[0] > 0 && tmp_fpmf -> num[1] > 0)
    {
      atom at[2][tmp_fmol -> multi];
      float ma[2][tmp_fmol -> multi];
      gboolean all_zero = TRUE;
      float v;
      for (k=0; k<2; k++)
      {
        for (l=0; l<tmp_fpmf -> num[k]; l++)
        {
          if (tmp_fpmf -> weight[k][l] != 0.0)
          {
            all_zero = FALSE;
            break;
          }
        }
        if (! all_zero) break;
      }
      for (k=0; k<2; k++)
      {
        for (l=0; l<tmp_fmol -> multi; l++)
        {
          ma[k][l] = 0.0;
          at[k][l].x = 0.0;
          at[k][l].y = 0.0;
          at[k][l].z = 0.0;
        }
      }
      for (k=0; k<2; k++)
      {
        for (l=0; l<tmp_fpmf -> num[k]; l++)
        {
          m = tmp_fpmf -> list[k][l];
          for (n=0; n<tmp_fmol -> multi; n++)
          {
            o = tmp_fmol -> atoms_id[m][n].a;
            p = tmp_fmol -> atoms_id[m][n].b;
            q = get_active_atom (tmp_fmol -> id, o) -> list[p];
            if (all_zero)
            {
              r = tmp_proj -> atoms[0][q].sp;
              v = tmp_proj -> chemistry -> chem_prop[CHEM_M][r];
            }
            else
            {
              v = tmp_fpmf -> weight[k][l];
            }
            at[k][n].x += v * tmp_proj -> atoms[0][q].x;
            at[k][n].y += v * tmp_proj -> atoms[0][q].y;
            at[k][n].z += v * tmp_proj -> atoms[0][q].z;
            ma[k][n] += v;
          }
        }
      }
      v = 0.0;
      for (n=0; n<tmp_fmol -> multi; n++)
      {
        for (k=0; k<2; k++)
        {
          at[k][n].x /= ma[k][n];
          at[k][n].y /= ma[k][n];
          at[k][n].z /= ma[k][n];
        }
        v += distance_3d (& tmp_proj -> cell, 0, & at[0][n], & at[1][n]).length;
      }
      tmp_fpmf -> av = v / tmp_fmol -> multi;
    }
    update_field_dist (tmp_fpmf -> av);
  }
  gtk_button_set_label (but, stra);
  gtk_widget_set_size_request ((GtkWidget *)but, 150, -1);
  g_free (stra);
}

G_MODULE_EXPORT void changed_atom_combo (GtkComboBox * box, gpointer data)
{
  int i, j, k;
  i = GPOINTER_TO_INT(data);
  j = combo_get_active ((GtkWidget *)box);
  switch (i)
  {
    case 0:
      widget_set_sensitive (afftype, (j) ? TRUE : FALSE);
      k = -1;
      if (tmp_fat -> afid > -1)
      {
        for (k=0; k<atoms_id[tmp_fat -> sp]; k++)
        {
          if (atoms_id_list[tmp_fat -> sp][k] == tmp_fat -> afid) break;
        }
      }
      combo_set_active (afftype, k+1);
      if (j)
      {
        tmp_fat -> mass =(tmp_fat -> afid < 0) ? tmp_proj -> chemistry -> chem_prop[CHEM_M][tmp_fat -> sp] : get_force_field_atom_mass (tmp_fat -> sp, tmp_fat -> afid);
      }
      else
      {
        tmp_fat -> mass = tmp_proj -> chemistry -> chem_prop[CHEM_M][tmp_fat -> sp];
      }
      break;
    case 1:
      if (j > 0)
      {
        tmp_fat -> afid = atoms_id_list[tmp_fat -> sp][j - 1];
      }
      else
      {
        tmp_fat -> afid = - 1;
      }
      tmp_fat -> mass = get_force_field_atom_mass (tmp_fat -> sp, j-1);
      check_atom_for_updates ();
      break;
  }
}

gchar * get_body_element_name (field_nth_body * body, int aid, int nbd)
{
  int i, j;
  i = body -> ma[aid][0];
  if (! nbd)
  {
    return g_strdup_printf ("%s",  get_active_atom (i, body -> a[aid][0]) -> name);
  }
  else
  {
    j = get_active_shell (i, body -> a[aid][0]-nbd+1) -> ia[0];
    return g_strdup_printf ("%s_sh",  get_active_atom (i, j) -> name);
  }
}

gboolean body_identicals (field_nth_body * body, int nbd, int * na, int ** ma, int ** ba)
{
  gchar * stra, * strb, * strc, * strd;
  int i, j;
  stra = get_body_element_name (body, 0, 0);
  strb = get_body_element_name (body, 1, 0);
  i = ma[0][0];
  if (ba[0][0] < nbd)
  {
    strc = g_strdup_printf ("%s",  get_active_atom (i, ba[0][0]) -> name);
  }
  else
  {
    j = get_active_shell (i, ba[0][0]-nbd) -> ia[0];
    strc = g_strdup_printf ("%s_sh",  get_active_atom (i, j) -> name);
  }
  i = ma[1][0];
  if (ba[1][0] < nbd)
  {
    strd = g_strdup_printf ("%s",  get_active_atom (i, ba[1][0]) -> name);
  }
  else
  {
    j = get_active_shell (i, ba[1][0]-nbd) -> ia[0];
    strd = g_strdup_printf ("%s_sh",  get_active_atom (i, j) -> name);
  }
  gboolean res = FALSE;
  if (g_strcmp0(stra, strc) == 0 && g_strcmp0(strb, strd) == 0) res = TRUE;
  if (g_strcmp0(stra, strd) == 0 && g_strcmp0(strb, strc) == 0) res = TRUE;
  // g_debug ("stra= %s, strb= %s, strc= %s, strd= %s:: res= %d", stra, strb, strc, strd, res);
  g_free (stra);
  g_free (strb);
  g_free (strc);
  g_free (strd);
  return res;
}

int get_num_vdw_max ()
{
  int i;
  field_molecule * molff;
  field_shell * shellff;
  molff = tmp_field -> first_molecule;
  i = 0;
  while (molff)
  {
    i += molff -> atoms;
    shellff = molff -> first_shell;
    while (shellff)
    {
      if (shellff -> use && shellff -> vdw && shellff -> ia[0] > -1) i ++;
      shellff = shellff -> next;
    }
    molff = molff -> next;
  }
  return i;
}

void adjust_vdw_interactions (gboolean add_shell)
{
  int i, j, k, l, m, n;
  field_molecule * molff;
  field_atom* atff;
  field_shell * shellff;
  field_nth_body * bodyff;
 
  i = get_num_vdw_max ();
  m = i * (i+1) / 2;
  n = (add_shell) ? i * (i-1) / 2 : (i+1) * (i+2) / 2;
  bodyff = get_active_body (0, 0);
  while (bodyff)
  {
    for (j=0; j<2; j++)
    {
      k = bodyff -> ma[j][0];
      if (bodyff -> a[j][0] >= n)
      {
        bodyff -> a[j][0] -= n;
        bodyff -> a[j][0] += m;
      }
    }
    bodyff = bodyff -> next;
  }
  if (add_shell)
  {
    gboolean add_vdw;
    gchar * str;
    gchar ** to_be_vdw = g_malloc0(i*sizeof*to_be_vdw);
    int * vdw_mlist = allocint (i);
    int ** vdw_aids = allocdint (i,i);
    int ** vdw_mids = allocdint (i,i);
    int vdw_na[2];
    int * vdw_a[2], * vdw_ma[2];
    int nbd = m;
    molff = tmp_field -> first_molecule;
    l = 0;
    while (molff)
    {
      atff = molff -> first_atom;
      while (atff)
      {
        add_vdw = TRUE;
        for (k=0; k<l; k++)
        {
          if (g_strcmp0 (to_be_vdw[k], atff -> name) == 0)
          {
            add_vdw = FALSE;
            vdw_mlist[k] ++;
            vdw_mids[k][vdw_mlist[k]] = molff -> id;
            vdw_aids[k][vdw_mlist[k]] = atff -> id;
            break;
          }
        }
        if (add_vdw)
        {
          to_be_vdw[k] = g_strdup_printf ("%s", atff -> name);
          vdw_mids[k][0] = molff -> id;
          vdw_aids[k][0] = atff -> id;
          l ++;
        }
        atff = atff -> next;
      }
      shellff = molff -> first_shell;
      while (shellff)
      {
        if (shellff -> use && shellff -> vdw && shellff -> ia[0] > -1)
        {
          add_vdw = TRUE;
          atff = get_active_atom (molff -> id, shellff -> ia[0]);
          str = g_strdup_printf ("%s_sh", atff -> name);
          for (k=0; k<l; k++)
          {
            if (g_strcmp0 (to_be_vdw[k], str) == 0)
            {
              add_vdw = FALSE;
              vdw_mlist[k] ++;
              vdw_mids[k][vdw_mlist[k]] = molff -> id;
              vdw_aids[k][vdw_mlist[k]] = shellff -> id + nbd;
              break;
            }
          }
          if (add_vdw)
          {
            to_be_vdw[k] = g_strdup_printf ("%s", str);
            vdw_mids[k][0] = molff -> id;
            vdw_aids[k][0] = shellff -> id + nbd;
            l ++;
          }
          g_free (str);
        }
        shellff = shellff -> next;
      }
      molff = molff -> next;
    }
    i = tmp_field -> nbody[0];
    j = 0;
    for (k=0; k<l; k++)
    {
      bodyff = get_active_body (0, 0);
      while (bodyff)
      {
        vdw_na[0] = vdw_na[1] = vdw_mlist[k]+1;
        vdw_a[0] = vdw_a[1] = duplicate_int (vdw_na[0], vdw_aids[k]);
        vdw_ma[0] = vdw_ma[1] = duplicate_int (vdw_na[0], vdw_mids[k]);
        if (body_identicals(bodyff, nbd, vdw_na, vdw_ma, vdw_a)) break;
        bodyff = bodyff -> next;
      }
      if (! bodyff)
      {
        bodyff = get_active_body (i+j, 0);
        bodyff -> next = init_field_nth_body (i+j, 0, vdw_na, vdw_ma, vdw_a);
        bodyff -> next -> prev = bodyff;
        j ++;
      }
    }
    for (m=0; m<l-1; m++)
    {
      for (n=m+1; n<l; n++)
      {
        bodyff = get_active_body (0, 0);
        while (bodyff)
        {
          vdw_na[0] = vdw_mlist[m]+1;
          vdw_na[1] = vdw_mlist[n]+1;
          vdw_a[0] = duplicate_int (vdw_na[0], vdw_aids[m]);
          vdw_a[1] = duplicate_int (vdw_na[1], vdw_aids[n]);
          vdw_ma[0] = duplicate_int (vdw_na[0], vdw_mids[m]);
          vdw_ma[1] = duplicate_int (vdw_na[1], vdw_mids[n]);
          if (body_identicals(bodyff, nbd, vdw_na, vdw_ma, vdw_a)) break;
          bodyff = bodyff -> next;
        }
        if (! bodyff)
        {
          bodyff = get_active_body (i+j, 0);
          bodyff -> next = init_field_nth_body (i+j, 0, vdw_na, vdw_ma, vdw_a);
          bodyff -> next -> prev = bodyff;
          j ++;
        }
      }
    }
    tmp_field -> nbody[0] += j;
  }
  else
  {
    atff = get_active_atom (tmp_fmol -> id, tmp_fshell -> ia[0]);
    gchar * str = g_strdup_printf ("%s_sh", atff -> name);
    gchar * stra, * strb;
    bodyff = get_active_body (0, 0);
    i = 0;
    while (bodyff)
    {
      stra = get_body_element_name (bodyff, 0, m+1);
      strb = get_body_element_name (bodyff, 1, m+1);
      if (g_strcmp0(str,stra) == 0 || g_strcmp0(str,strb) == 0)
      {
        if (bodyff -> next)
        {
          bodyff -> prev -> next = bodyff -> next;
          bodyff -> next -> prev = bodyff -> prev;
        }
        else
        {
          bodyff = bodyff -> prev;
          g_free (bodyff -> next);
          bodyff -> next = NULL;
        }
        i ++;
      }
      g_free (stra);
      g_free (strb);
      bodyff = bodyff -> next;
    }
    g_free (str);
    tmp_field -> nbody[0] -= i;
  }
}
 
#ifdef GTK4
G_MODULE_EXPORT void shell_in_vdw (GtkCheckButton * but, gpointer data)
#else
G_MODULE_EXPORT void shell_in_vdw (GtkToggleButton * but, gpointer data)
#endif
{
  tmp_fshell -> vdw = button_get_status ((GtkWidget *)but);
  adjust_vdw_interactions (tmp_fshell -> vdw);
}
 
dint rep;
gchar * rep_atom_name;

G_MODULE_EXPORT void run_edit_parameters (GtkDialog * dialog, gint response_id, gpointer data)
{
  if (rep.a > 6 && rep.a < MOLIMIT)
  {
    adjust_field_prop (rep.a-7, rep.b, tmp_fprop, edit_atids, tmp_fprop -> key);
  }
  else if (rep.a == 1)
  {
    if (g_strcmp0 (rep_atom_name, tmp_fat -> name) != 0)
    {
      // Atom name's change, need to update non bonded interactions
      compare_non_bonded (tmp_fat -> name);
    }
    g_free (rep_atom_name);
    rep_atom_name = NULL;
  }
  destroy_this_dialog (dialog);
}

void edit_parameters (int f, int id)
{
  gchar * str = g_strdup_printf (_("%s parameter(s)"), _(felemt[f+1]));
  GtkWidget * dialog = dialogmodal(str, GTK_WINDOW(field_assistant));
  GtkWidget * lab;
  GtkWidget * entry;
  GtkWidget * but;
  GtkWidget * hbox;
  GtkWidget * combo;
  GtkWidget * box = dialog_get_content_area (dialog);
  gboolean show_it;
  gboolean use_it;
  gchar * cs_name[3]={i18n("Core atom: "), i18n("Shell atom: "), i18n("Selection: ")};
  gchar * cs_param[4]={i18n("Mass:"), i18n("Charge:"), "<i>k<sub>2</sub></i> ", "<i>k<sub>4</sub></i> "};
  gchar * cs_unit[4]={"g mol<sup>-1</sup>", " ", "&#xC5;<sup>-2</sup>", "&#xC5;<sup>-4</sup>"};
  gchar * co_name[4]={i18n("First atom: "), i18n("Second atom: "), i18n("Third atom: "), i18n("Fourth atom: ")};
  gchar * pm_name[2]={i18n("First unit: "), i18n("Second unit: ")};
  int i, j, k, l, m;
  float v;
  gchar * ba;
  is_moy = 1;
  show_it = use_it = FALSE;
  for (i=0; i<2; i++) ff_p_combo[i] = NULL;
  if (f < MOLIMIT)
  {
   i = combo_get_active (combo_mol[f-1]);
   lab = markup_label (g_strdup_printf (_("\tMolecule: \t<b>%s</b>"), get_active_field_molecule(i) -> name), -1, 30, 0.0, 0.5);
   add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
   tmp_fmol = get_active_field_molecule (i);
  }
  switch (f)
  {
    case 1:
      // Atom edit
      tmp_fat = get_active_atom(i, id);
      rep_atom_name = g_strdup_printf("%s", tmp_fat -> name);
      lab = markup_label (g_strdup_printf (_("\tAtom: \t\t<b>%s</b>"), rep_atom_name), -1, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Element:"));
      lab = markup_label (str, 120, 30, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      str = g_strdup_printf ("%s", exact_name(tmp_proj -> chemistry -> element[tmp_fat -> sp]));
      lab = markup_label (str, -1, -1, 0.5, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Field parameters:"));
      lab = markup_label (str, 120, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      combo = create_combo ();
      combo_text_append (combo, _("Manual"));
      combo_text_append (combo, _("Automatic"));
      combo_set_active (combo, (tmp_fat -> afid > -1) ? 1 : 0);
      widget_set_sensitive (combo, atoms_id[tmp_fat -> sp]);
      g_signal_connect (G_OBJECT(combo), "changed", G_CALLBACK(changed_atom_combo), GINT_TO_POINTER(0));
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, combo, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Force field type <sup>*</sup>:"));
      lab = markup_label (str, 120, 30, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      afftype = create_combo ();
      combo_text_append (afftype, "None");
      k = 0;
      for (i=0; i<atoms_id[tmp_fat -> sp]; i++)
      {
        j = atoms_id_list[tmp_fat -> sp][i];
        str = g_strdup_printf ("%s", exact_name(ff_atoms[j][2]));
        if (g_strcmp0 (ff_atoms[j][3], " ") != 0) str = g_strdup_printf ("%s : %s", str, ff_atoms[j][3]);
        combo_text_append (afftype, str);
        g_free (str);
        if (atoms_id_list[tmp_fat -> sp][i] == tmp_fat -> afid) k = i+1;
      }
      combo_set_active (afftype, k);
      g_signal_connect (G_OBJECT(afftype), "changed", G_CALLBACK(changed_atom_combo), GINT_TO_POINTER(1));
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, afftype, FALSE, FALSE, 0);
      widget_set_sensitive (afftype, (tmp_fat -> afid > -1) ? TRUE : FALSE);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Name: "));
      lab = markup_label (str, 120, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      entry = create_entry (G_CALLBACK(update_atom_parameter), 100, 15, FALSE, GINT_TO_POINTER(-1));
      update_entry_text (GTK_ENTRY(entry), tmp_fat -> name);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Mass: "));
      lab = markup_label (str, 120, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      entry = create_entry (G_CALLBACK(update_atom_parameter), 100, 15, FALSE, GINT_TO_POINTER(0));
      update_entry_double (GTK_ENTRY(entry), tmp_fat -> mass);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Charge: "));
      lab = markup_label (str, 120, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      entry = create_entry (G_CALLBACK(update_atom_parameter), 100, 15, FALSE, GINT_TO_POINTER(1));
      update_entry_double (GTK_ENTRY(entry), tmp_fat -> charge);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Frozen: "));
      lab = markup_label (str, 120, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      str = g_strdup_printf (_("%d atom(s)"), tmp_fat -> frozen);
      but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(select_atom_id_from_fied_molecule), GINT_TO_POINTER(1));
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      break;
    case 2:
      // Shell edit
      tmp_fshell = get_active_shell (i, id);
      str = g_strdup_printf (_("\tCore-Shell N°<b>%d</b>"), tmp_fshell -> id+1);
      lab = markup_label (str, 300, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
      for (k=0; k<2; k++)
      {
        hbox = create_hbox (0);
        lab = markup_label (_(cs_name[k]), 100, -1, 0.0, 0.5);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
        if (! tmp_fshell -> ia[k])
        {
          str = g_strdup_printf (_("Not picked yet !"));
          img_but[k] = stock_image (DELETEB);
        }
        else
        {
          j = tmp_fshell -> ia[k] - 1;
          l = tmp_fmol -> atoms_id[j][0].a;
          str = g_strdup_printf ("%s - %d", exact_name(tmp_proj -> chemistry -> label[get_active_atom (i, l) -> sp]), tmp_fshell -> ia[k]);
          img_but[k] = stock_image (APPLY);
        }
        but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(k+2));
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, img_but[k], FALSE, FALSE, 30);
      }
 
      /*for (k=0; k<3; k++)
      {
        shell_hbox[k] = create_hbox (0);
        lab = markup_label (_(cs_name[k]), 100, -1, 0.0, 0.5);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, shell_hbox[k], lab, FALSE, FALSE, 10);
        if ((k < 2 && tmp_fshell -> ia[k] == -1) || (k == 2 && ! tmp_fshell -> ib))
        {
          str = g_strdup_printf (_("Not picked yet !"));
          img_but[k] = stock_image (DELETEB);
        }
        else
        {
          if (k < 2)
          {
            str = g_strdup_printf (_("Selected !"));
          }
          else
          {
            str = g_strdup_printf (_("%d atom(s) selected !"), tmp_fshell -> ia[1]-1);
          }
          img_but[k] = stock_image (APPLY);
        }
        if (k < 2)
        {
          shell_cbox[k] = create_combo ();
          combo_text_append (shell_cbox[k], _("Not picked yet !"));
          switch (k)
          {
            case 0:
              tmp_fat = tmp_fmol -> first_atom;
              while (tmp_fat)
              {
                combo_text_append (shell_cbox[k], tmp_fat -> name);
                tmp_fat = tmp_fat -> next;
              }
              break;
            case 1:
              combo_text_append (shell_cbox[k], _("All Atoms"));
              combo_text_append (shell_cbox[k], _("Selected Atoms"));
              break;
          }
          l = (! k) ? tmp_fshell -> ia[k]+1 : (tmp_fshell -> ia[k] < 1) ? tmp_fshell -> ia[k]+1 : 2;
          combo_set_active (shell_cbox[k], l);
          g_signal_connect (G_OBJECT(shell_cbox[k]), "changed", G_CALLBACK(changed_shell_combo), GINT_TO_POINTER(k));
          gtk_widget_set_size_request (shell_cbox[k], 150, -1);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, shell_hbox[k], shell_cbox[k], FALSE, FALSE, 0);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, shell_hbox[k], img_but[k], FALSE, FALSE, 30);
          add_box_child_start (GTK_ORIENTATION_VERTICAL, box, shell_hbox[k], FALSE, FALSE, 0);
        }
        else
        {
           shell_but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(2));
           add_box_child_start (GTK_ORIENTATION_HORIZONTAL, shell_hbox[k], shell_but, FALSE, FALSE, 0);
           add_box_child_start (GTK_ORIENTATION_HORIZONTAL, shell_hbox[k], img_but[k], FALSE, FALSE, 30);
           add_box_child_start (GTK_ORIENTATION_VERTICAL, box, shell_hbox[k], FALSE, FALSE, 0);
        }
        g_free (str);
      }
      */
      for (k=0; k<4; k++)
      {
        hbox = create_hbox (0);
        lab = markup_label ((k < 2) ? _(cs_param[k]) : cs_param[k], 100, -1, 0.0, 0.5);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
        entry = create_entry (G_CALLBACK(update_atom_parameter), 150, 15, FALSE, GINT_TO_POINTER(2+k));
        v = (! k) ? tmp_fshell -> m : (k == 1) ? tmp_fshell -> z : (k == 2) ? tmp_fshell -> k2 : tmp_fshell -> k4;
        update_entry_double (GTK_ENTRY(entry), v);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
        if (k < 2)
        {
          str = g_strdup_printf ("%s", cs_unit[k]);
        }
        else
        {
          str = g_strdup_printf ("%s %s", fkeysw[activef][0][tmp_field -> energy_unit], cs_unit[k]);
        }
        lab = markup_label (str, -1, -1, 0.0, 0.5);
        g_free (str);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      }
      hbox = create_hbox (0);
      lab = markup_label(_("Use non-bonded: "), 185, 40, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, check_button (NULL, -1, -1, tmp_fshell -> vdw, G_CALLBACK(shell_in_vdw), NULL), FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      show_it = tmp_fshell -> show;
      use_it = tmp_fshell -> use;
      break;
    case 3:
      // Constraint edit
      tmp_fcons = get_active_constraint (i, id);
      str = g_strdup_printf (_("\tBond constraint N°<b>%d</b>"), tmp_fcons -> id+1);
      lab = markup_label (str, 300, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
      for (k=0; k<2; k++)
      {
        hbox = create_hbox (0);
        lab = markup_label (_(co_name[k]), 100, -1, 0.0, 0.5);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
        if (! tmp_fcons -> ia[k])
        {
          str = g_strdup_printf (_("Not picked yet !"));
          img_but[k] = stock_image (DELETEB);
        }
        else
        {
          j = tmp_fcons -> ia[k]-1;
          l = tmp_fmol -> atoms_id[j][0].a;
          str = g_strdup_printf ("%s - %d", exact_name(tmp_proj -> chemistry -> label[get_active_atom (i, l) -> sp]), tmp_fcons -> ia[k]);
          img_but[k] = stock_image (APPLY);
        }
        but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(k+4));
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, img_but[k], FALSE, FALSE, 30);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      }
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Av. distance (1): "));
      lab = markup_label (str, 100, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      av_lgt = markup_label ("", 150, 50, 0.5, 0.5);
      update_field_dist (tmp_fcons -> av);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, av_lgt, FALSE, FALSE, 0);
      str = g_strdup_printf ("[&#xC5;]");
      lab = markup_label (str, -1, -1, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Length: "));
      lab = markup_label (str, 100, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      entry = create_entry (G_CALLBACK(update_atom_parameter), 150, 15, FALSE, GINT_TO_POINTER(6));
      update_entry_double (GTK_ENTRY(entry), tmp_fcons -> length);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
      str = g_strdup_printf ("[&#xC5;]");
      lab = markup_label (str, -1, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      show_it = tmp_fcons -> show;
      use_it = tmp_fcons -> use;
      break;
    case 4:
      // Pmf edit
      tmp_fpmf = get_active_pmf (i, id);
      str = g_strdup_printf (_("\tMean force potential N°<b>%d</b>"), tmp_fpmf -> id+1);
      lab = markup_label (str, 300, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
      for (k=0; k<2; k++)
      {
        hbox = create_hbox (0);
        lab = markup_label (_(pm_name[k]), 100, -1, 0.0, 0.5);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
        if (tmp_fpmf -> num[k] == 0)
        {
          str = g_strdup_printf (_("Not picked yet !"));
          img_but[k] = stock_image (DELETEB);
        }
        else
        {
          str = g_strdup_printf (_("%d atom(s)"), tmp_fpmf -> num[k]);
          img_but[k] = stock_image (APPLY);
        }
        but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(k+6));
        g_free (str);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
        add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, img_but[k], FALSE, FALSE, 30);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      }
 
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Av. d<sub>1-2</sub> (1): "));
      lab = markup_label (str, 100, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      av_lgt = markup_label ("", 150, 50, 0.5, 0.5);
      update_field_dist (tmp_fpmf -> av);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, av_lgt, FALSE, FALSE, 0);
      str = g_strdup_printf ("[&#xC5;]");
      lab = markup_label (str, -1, 50, 0.0, 0.5);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
 
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Length: "));
      lab = markup_label (str, 100, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      entry = create_entry (G_CALLBACK(update_atom_parameter), 150, 15, FALSE, GINT_TO_POINTER(7));
      update_entry_double (GTK_ENTRY(entry), tmp_fpmf -> length);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, entry, FALSE, FALSE, 0);
      str = g_strdup_printf ("[&#xC5;]");
      lab = markup_label (str, -1, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      show_it = tmp_fpmf -> show;
      use_it = tmp_fpmf -> use;
      break;
    case 5:
      // Rigid edit
      tmp_frig = get_active_rigid (i, id);
      str = g_strdup_printf (_("\tRigid unit N°<b>%d</b>"), id+1);
      lab = markup_label (str, 300, 50, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
 
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Atom(s): "));
      lab = markup_label (str, 100, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      if (tmp_frig -> num == 0)
      {
        str = g_strdup_printf (_("Not picked yet !"));
        img_but[0] = stock_image (DELETEB);
      }
      else
      {
        str = g_strdup_printf (_("%d atom(s)"), tmp_frig -> num);
        img_but[0] = stock_image (APPLY);
      }
      but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(8));
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, img_but[0], FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      show_it = tmp_frig -> show;
      use_it = tmp_frig -> use;
      break;
    case 6:
      // Tethered
      tmp_ftet = get_active_tethered (i, id);
      str = g_strdup_printf (_("\tTethered atom N°<b>%d</b>"), id+1);
      lab = markup_label (str, 300, 50, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
 
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Atom: "));
      lab = markup_label (str, 100, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      if (! tmp_ftet -> num)
      {
        str = g_strdup_printf (_("Not picked yet !"));
        img_but[0] = stock_image (DELETEB);
      }
      else
      {
        k = tmp_fmol -> atoms_id[tmp_ftet -> num-1][0].a;
        str = g_strdup_printf ("%s - %d", exact_name(tmp_proj -> chemistry -> label[get_active_atom (i, k) -> sp]), tmp_ftet -> num);
        img_but[0] = stock_image (APPLY);
      }
      but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(9));
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, img_but[0], FALSE, FALSE, 30);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      show_it = tmp_ftet -> show;
      use_it = tmp_ftet -> use;
      break;
    case SEXTERN:
      tmp_fext = get_active_external (id);
      body_lab = markup_label (field_str(tmp_fext -> key), 250, 50, 0.5, 0.5);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, body_lab, FALSE, FALSE, 0);
      use_it = tmp_fext -> use;
      break;
    default:
      if (f < MOLIMIT)
      {
        // Bond, angle, dihedral, improper, inversion edit
        tmp_fstr = get_active_struct (f-7, i, id);
        m = struct_id (f);
        str = g_strdup_printf (_("\t%s type N°<b>%d</b>\n\tField atoms: <b>"), mo_title[f-7], id+1);
        for (k=0; k<m; k++)
        {
          if (k == m-1) str = g_strdup_printf (_("%s</b> and <b>"), str);
          str = g_strdup_printf ("%s%s", str, get_active_atom (i, tmp_fstr -> aid[k]) -> name);
          if (m > 2 && k < m-1) str = g_strdup_printf ("%s</b>, <b>", str);
        }
        str = g_strdup_printf ("%s</b>", str);
        edit_atids = allocint (m);
        gtk_tree_model_get (GTK_TREE_MODEL(field_model[f]), & field_iter, 0, & is_moy, -1);
        if (! is_moy)
        {
          str = g_strdup_printf (_("%s\n\tBetween atoms: <b>"), str);
          for (k=0; k<m; k++)
          {
            gtk_tree_model_get (GTK_TREE_MODEL(field_model[f]), & field_iter, k+1, & ba, -1);
            edit_atids[k] =  (int) string_to_double ((gpointer)ba) - 1;
            if (k == m-1) str = g_strdup_printf (_("%s</b> and <b>"), str);
            str = g_strdup_printf ("%s%s", str, ba);
            if (m > 2 && k < m-1) str = g_strdup_printf ("%s</b>, <b>", str);
          }
          str = g_strdup_printf ("%s</b>", str);
          if (tmp_fstr -> other)
          {
            tmp_fprop = get_active_prop_using_atoms (tmp_fstr -> other, m, edit_atids);
            if (! tmp_fprop)
            {
              tmp_fprop = tmp_fstr -> other;
              while (tmp_fprop -> next) tmp_fprop = tmp_fprop -> next;
              tmp_fprop -> next = duplicate_field_prop (tmp_fstr -> def, f-7);
              tmp_fprop = tmp_fprop -> next;
              for (k=0; k<m; k++) tmp_fprop -> aid[k] = edit_atids[k];
            }
          }
          else
          {
            tmp_fstr -> other = duplicate_field_prop (tmp_fstr -> def, f-7);
            for (k=0; k<m; k++) tmp_fstr -> other -> aid[k] = edit_atids[k];
            tmp_fprop = tmp_fstr -> other;
          }
        }
        else
        {
          for (l=0; l<m; l++) edit_atids[l] = -1;
          tmp_fprop = tmp_fstr -> def;
        }
        add_box_child_start (GTK_ORIENTATION_VERTICAL, box, markup_label (str, -1, (is_moy) ? 70 : 100, 0.0, 0.5), FALSE, FALSE, 0);
        g_free (str);
        show_it = tmp_fprop -> show;
        use_it = tmp_fprop -> use;
      }
      else
      {
        l = f - MOLIMIT;
        tmp_fbody = get_active_body (id, l);
        body_lab = markup_label (body_str (tmp_fbody -> bd), 250, 50, 0.5, 0.5);
        add_box_child_start (GTK_ORIENTATION_VERTICAL, box, body_lab, FALSE, FALSE, 0);
        if (l > 0)
        {
          for (k=0; k< body_at(l); k++)
          {
            hbox = create_hbox (0);
            if (l == 2)
            {
              lab = markup_label (_("Tersoff atom: "), 100, -1, 0.0, 0.5);
            }
            else
            {
              lab = markup_label (_(co_name[k]), 100, -1, 0.0, 0.5);
            }
            add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
            if (tmp_fbody -> na[k] < 0)
            {
              str = g_strdup_printf (_("Not picked yet !"));
              img_but[k] = stock_image (DELETEB);
            }
            else
            {
              str = g_strdup_printf ("%s", get_active_atom (tmp_fbody -> ma[k][0], tmp_fbody -> a[k][0]) -> name);
              img_but[k] = stock_image (APPLY);
            }
            but = create_button (str, IMG_NONE, NULL, 150, -1, GTK_RELIEF_NORMAL, G_CALLBACK(selection_button), GINT_TO_POINTER(11+k));
            g_free (str);
            add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, but, FALSE, FALSE, 0);
            add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, img_but[k], FALSE, FALSE, 30);
            add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
          }
        }
        show_it = tmp_fbody -> show;
        use_it = tmp_fbody -> use;
      }
      break;
  }
  if (f < SEXTERN)
  {
    hbox = create_hbox (0);
    lab = markup_label(_("Visualize in the model: "), (f == 1) ? 150 : 185, 40, 0.0, 0.5);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, check_button (NULL, -1, -1, show_it, G_CALLBACK(visualize_it), GINT_TO_POINTER(f)), FALSE, FALSE, 30);
    add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
  }
  if (f == 1)
  {
    str = g_strdup_printf (_("<sup>*</sup> this will be used to adjust bonding, angles, etc ... accordingly,\n"
                             "  providing that some parameters can be found in the force field data.\n"
                             "  Please note that comments are directly imported from the force field file."));
    lab = markup_label (str, -1, 75, 0.5, 0.5);
    add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
  }
  if (f > 1)
  {
    hbox = create_hbox (0);
    lab = markup_label(_("Use to create force field: "), 185, 40, 0.0, 0.5);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, check_button (NULL, -1, -1, use_it, G_CALLBACK(select_it), GINT_TO_POINTER(f)), FALSE, FALSE, 30);
    add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
    if (f > 5)
    {
      if (f > 6 && f < 16)
      {
        if (f != 15 || tmp_field -> type < CFF91 || tmp_field -> type > COMPASS)
        {
          hbox = create_hbox (0);
          gchar * funits[5] ={"Ev", "kcal mol<sup>-1</sup>", "kJ mol<sup>-1</sup>", "K B<sup>-1</sup>", _("DL_POLY internal units")};
          str = g_strdup_printf (_("Field parameters <sup>*</sup>:"));
          lab = markup_label (str, 120, -1, 0.0, 0.5);
          g_free (str);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
          add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, create_field_prop_combo (f, is_moy), FALSE, FALSE, 0);
          add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
          str = g_strdup_printf (_("<sup>*</sup> Available parameters with matching chemical species,\n"
                                   "  %s force field energy related parameters in: %s \n"
                                   "  if required conversion to FIELD file energy unit will be performed upon selection.\n"
                                   "  Please note that comments are directly imported from the force field file.\n"),
                                 field_acro[tmp_field -> type], (ff_unit == 4) ? _(funits[ff_unit]) : funits[ff_unit]);
          lab = markup_label (str, -1, 75, 0.5, 0.5);
          add_box_child_start (GTK_ORIENTATION_VERTICAL, box, lab, FALSE, FALSE, 0);
        }
      }
      hbox = create_hbox (0);
      str = g_strdup_printf (_("Potential: "));
      lab = markup_label (str, 100, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      field_key_combo = create_combo ();
      for (j=0; j<fetypes[activef][f-5]; j++)
      {
        str = g_strdup_printf ("%s (%s)", dlp_to_translate(activef,f-5,j) ? _(fnames[activef][f-5][j]) : fnames[activef][f-5][j], exact_name(fkeysw[activef][f-5][j]));
        combo_text_append (field_key_combo, str);
        g_free (str);
      }
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, field_key_combo, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
      param_box = create_hbox (0);
      p_box = param_prop_param_box (f);
      switch (f)
      {
        case 6:
          // Tethered
          combo_set_active (field_key_combo, tmp_ftet -> key);
          break;
        case SEXTERN:
          combo_set_active (field_key_combo, tmp_fext -> key);
          break;
        default:
          if (f < MOLIMIT)
          {
            combo_set_active (field_key_combo, tmp_fprop -> key);
          }
          else
          {
            // non nonded
            combo_set_active (field_key_combo, tmp_fbody -> key);
          }
          break;
      }
      g_signal_connect (G_OBJECT(field_key_combo), "changed", G_CALLBACK(changed_field_key_combo), GINT_TO_POINTER(f));
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, param_box, p_box, FALSE, FALSE, 0);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, param_box, FALSE, FALSE, 5);
    }
    else if (f == 3)
    {
      hbox = create_hbox (0);
      str = g_strdup_printf (_("  <b>(1)</b> average distance between the 2 atoms\n\tas measured in the 3D model"));
      lab = markup_label (str, 320, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
    }
    else if (f == 4)
    {
      hbox = create_hbox (0);
      str = g_strdup_printf (_("  <b>(1)</b> average distance between the barycenters\n\tof units 1 and 2 as measured in the model"));
      lab = markup_label (str, 320, -1, 0.0, 0.5);
      g_free (str);
      add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, lab, FALSE, FALSE, 10);
      add_box_child_start (GTK_ORIENTATION_VERTICAL, box, hbox, FALSE, FALSE, 0);
    }
  }
  rep.a = f;
  rep.b = m;
  g_signal_connect (G_OBJECT(dialog), "response", G_CALLBACK(run_edit_parameters), NULL);
  show_the_widgets (dialog);
  if (f == 2)
  {
    if (tmp_fshell -> ia[0] < 0 || tmp_fshell -> ia[1] < 1) hide_the_widgets (shell_hbox[2]);
    if (tmp_fshell -> ia[0] < 0) widget_set_sensitive (shell_hbox[1], FALSE);
  }
 
  dialog_id ++;
  Event_loop[dialog_id] = g_main_loop_new (NULL, FALSE);
  g_main_loop_run (Event_loop[dialog_id]);
}

void update_tersoffs (int id, int key)
{
  int i;
  field_nth_body * bod = tmp_field -> first_body[2];
  for (i=0; i<tmp_field -> nbody[2]; i++)
  {
    if (i != id)
    {
      if (bod -> key != key)
      {
        bod -> key = key;
        bod -> val = NULL;
        bod -> val = allocfloat (fvalues[activef][MOLIMIT-4][bod -> key]);
      }
    }
    if (bod -> next != NULL) bod = bod -> next;
  }
  if (key && tmp_field -> cross != NULL)
  {
    g_free (tmp_field -> cross);
    tmp_field -> cross = NULL;
  }
}

void check_tersoffs (int id, int key)
{
  int i, j;
  if (change_tersoff && id != -1) update_tersoffs (id, key);
  if (! key)
  {
    if (tmp_field -> cross)
    {
      g_free (tmp_field -> cross);
      tmp_field -> cross = NULL;
    }
    if (cross)
    {
      tmp_field -> cross = g_malloc0(tmp_field -> nbody[2]*sizeof*tmp_field -> cross);
      for (i=0; i<tmp_field -> nbody[2]; i++)
      {
        tmp_field -> cross[i] = g_malloc0(tmp_field -> nbody[2]*sizeof*tmp_field -> cross[i]);
        for (j=0; j<tmp_field -> nbody[2]; j++) tmp_field -> cross[i][j] = duplicate_double (3, cross[i][j]);
      }
    }
    else
    {
      tmp_field -> cross = alloctdouble (tmp_field -> nbody[2], tmp_field -> nbody[2], 3);
    }
  }
}

G_MODULE_EXPORT void edit_field_prop (GSimpleAction * action, GVariant * parameter, gpointer data)
{
  int i, j, k;
  i = GPOINTER_TO_INT (data);
  gchar * tmp;
  switch (i)
  {
    case 0:
      if (action == NULL)
      {
        tmp_fmol = get_active_field_molecule (row_id);
        tmp = g_strdup_printf (_("Please enter name for new molecule N°%d"), tmp_field -> molecules);
        tmp_fmol -> name = g_strdup_printf("MOL-%d", i);
        tmp = cask (tmp, _("Molecule name:"), 0, tmp_fmol -> name, field_assistant);
        if (tmp != NULL)
        {
          tmp_fmol -> name = g_strdup_printf ("%s", tmp);
          g_free (tmp);
        }
      }
      else
      {
        tmp_fmol = get_active_field_molecule (row_id);
        tmp = g_strdup_printf (_("Please enter name for molecule N°%d"), row_id+1);
        tmp = cask (tmp, _("Molecule name:"), 0, tmp_fmol -> name, field_assistant);
        if (tmp != NULL)
        {
          tmp_fmol -> name = g_strdup_printf ("%s", tmp);
          g_free (tmp);
          clean_up_molecules_info (FALSE);
        }
      }
      break;
    default:
      if (i == MOLIMIT+2)
      {
        num_body_d = tmp_field -> nbody[2];
        cross = NULL;
        if (tmp_field -> cross != NULL)
        {
          cross = g_malloc0(tmp_field -> nbody[2]*sizeof*cross);
          for (j=0; j<tmp_field -> nbody[2]; j++)
          {
            cross[j] = g_malloc0(tmp_field -> nbody[2]*sizeof*cross[j]);
            for (k=0; k<tmp_field -> nbody[2]; k++) cross[j][k] = duplicate_double (3, tmp_field -> cross[j][k]);
          }
        }
        change_tersoff = FALSE;
      }
      edit_parameters (i, row_id);
      if (i == MOLIMIT+2) check_tersoffs (tmp_fbody -> id, tmp_fbody -> key);
      update_field_trees ();
      break;
  }
}

G_MODULE_EXPORT void add_field_prop (GSimpleAction * action, GVariant * parameter, gpointer data)
{
  int i, j, k, l, m;
  gboolean save_it;
  i = GPOINTER_TO_INT (data);
  field_molecule * fmol;
  if (i < MOLIMIT)
  {
    j = combo_get_active (combo_mol[i-1]);
    tmp_fmol = fmol = get_active_field_molecule (j);
  }
  if (i == 2)
  {
    if (fmol -> first_shell == NULL)
    {
      fmol -> first_shell = init_field_shell (fmol -> shells, 0, 0);
    }
    else
    {
      tmp_fshell = get_active_shell (j, fmol -> shells);
      tmp_fshell -> next = init_field_shell (fmol -> shells, 0, 0);
      tmp_fshell -> next -> prev = g_malloc0(sizeof*tmp_fshell -> next -> prev);
      tmp_fshell -> next -> prev = tmp_fshell;
    }
    row_id = fmol -> shells;
    edit_parameters (i, fmol -> shells);
    if (tmp_fshell -> ia[0] || tmp_fshell -> ia[1])
    {
      fmol -> shells ++;
      if (! tmp_fshell -> ia[0] || ! tmp_fshell -> ia[1]) tmp_fshell -> use = FALSE;
    }
    else
    {
      tmp_fshell = get_active_shell (j, fmol -> shells);
      tmp_fshell -> next = NULL;
      if (fmol -> shells == 0) fmol -> first_shell = NULL;
    }
  }
  else if (i == 3)
  {
    if (fmol -> first_constraint == NULL)
    {
      fmol -> first_constraint = init_field_constraint (fmol -> constraints, 0, 0);
    }
    else
    {
      tmp_fcons = get_active_constraint (j, fmol -> constraints);
      tmp_fcons -> next = init_field_constraint (fmol -> constraints, 0, 0);
      tmp_fcons -> next -> prev = g_malloc0(sizeof*tmp_fcons -> next -> prev);
      tmp_fcons -> next -> prev = tmp_fcons;
    }
    row_id = fmol -> constraints;
    edit_parameters (i, fmol -> constraints);
    if (tmp_fcons -> ia[0] || tmp_fcons -> ia[1])
    {
      fmol -> constraints ++;
      if (! tmp_fcons -> ia[0] || ! tmp_fcons -> ia[1]) tmp_fcons -> use = FALSE;
    }
    else
    {
      tmp_fcons = get_active_constraint (j, fmol -> constraints);
      tmp_fcons -> next = NULL;
      if (fmol -> constraints == 0) fmol -> first_constraint = NULL;
    }
  }
  else if (i == 4)
  {
    if (fmol -> first_pmf == NULL)
    {
      fmol -> first_pmf = init_field_pmf (fmol -> pmfs, NULL, NULL, NULL);
    }
    else
    {
      tmp_fpmf = get_active_pmf (j, fmol -> pmfs);
      tmp_fpmf -> next = init_field_pmf (fmol -> pmfs, NULL, NULL, NULL);
      tmp_fpmf -> next -> prev = g_malloc0(sizeof*tmp_fpmf -> next -> prev);
      tmp_fpmf -> next -> prev = tmp_fpmf;
    }
    row_id = fmol -> pmfs;
    edit_parameters (i, fmol -> pmfs);
    if (tmp_fpmf -> num[0] > 0 || tmp_fpmf -> num[1] > 0)
    {
      fmol -> pmfs ++;
      if (tmp_fpmf -> length == 0.0 || tmp_fpmf -> num[0] == 0 || tmp_fpmf -> num[1] == 0) tmp_fpmf -> use = FALSE;
      if (tmp_fpmf -> use)
      {
        toviz.c = TRUE;
        select_object (i, fmol -> pmfs, j);
      }
    }
    else
    {
      tmp_fpmf = get_active_pmf (j, fmol -> pmfs);
      tmp_fpmf -> next = NULL;
      if (fmol -> pmfs == 0) fmol -> first_pmf = NULL;
    }
  }
  else if (i == 5)
  {
    if (fmol -> first_rigid == NULL)
    {
      fmol -> first_rigid = init_field_rigid (fmol -> rigids, 0, NULL);
    }
    else
    {
      tmp_frig = get_active_rigid (j, fmol -> rigids);
      tmp_frig -> next = init_field_rigid (fmol -> rigids, 0, NULL);
      tmp_frig -> next -> prev = g_malloc0(sizeof*tmp_frig -> next -> prev);
      tmp_frig -> next -> prev = tmp_frig;
    }
    row_id = fmol -> rigids;
    edit_parameters (i, fmol -> rigids);
    if (tmp_frig -> num > 0)
    {
      fmol -> rigids ++;
      tmp_frig -> use = TRUE;
    }
    else
    {
      tmp_frig = get_active_rigid (j, fmol -> rigids);
      tmp_frig -> next = NULL;
      if (fmol -> rigids == 0) fmol -> first_rigid = NULL;
    }
  }
  else if (i == 6)
  {
    if (fmol -> first_tethered == NULL)
    {
      fmol -> first_tethered = init_field_tethered (fmol -> tethered, 0);
    }
    else
    {
      tmp_ftet = get_active_tethered (j, fmol -> tethered);
      tmp_ftet -> next = init_field_tethered (fmol -> tethered, 0);
      tmp_ftet -> next -> prev = g_malloc0(sizeof*tmp_ftet -> next -> prev);
      tmp_ftet -> next -> prev = tmp_ftet;
    }
    row_id = fmol -> tethered;
    edit_parameters (i, fmol -> tethered);
    if (tmp_ftet -> num)
    {
      fmol -> tethered ++;
      tmp_ftet -> use = TRUE;
    }
    else
    {
      tmp_ftet = get_active_tethered (j, fmol -> tethered);
      tmp_ftet -> next = NULL;
      if (fmol -> tethered == 0) fmol -> first_tethered = NULL;
    }
  }
  else if (i == SEXTERN)
  {
    if (tmp_field -> first_external == NULL)
    {
      tmp_field -> first_external = init_field_external (tmp_field -> extern_fields);
    }
    else
    {
      tmp_fext = get_active_external (tmp_field -> extern_fields-1);
      tmp_fext -> next = init_field_external (tmp_field -> extern_fields);
      tmp_fext -> next -> prev = g_malloc0(sizeof*tmp_fext -> next -> prev);
      tmp_fext -> next -> prev = tmp_fext;
    }
    row_id = tmp_field -> extern_fields;
    edit_parameters (i, tmp_field -> extern_fields);
    if (tmp_fext -> use && tmp_fext -> key > -1)
    {
      tmp_field -> extern_fields ++;
    }
    else
    {
      tmp_fext = get_active_external (tmp_field -> extern_fields);
      tmp_fext -> next = NULL;
      if (tmp_field -> extern_fields == 0) tmp_field -> first_external = NULL;
    }
  }
  else
  {
    j = i - MOLIMIT;
    row_id = tmp_field -> nbody[j];
    if (tmp_field -> first_body[j] == NULL)
    {
      tmp_field -> first_body[j] = init_field_nth_body (tmp_field -> nbody[j], j, NULL, NULL, NULL);
    }
    else
    {
      tmp_fbody = get_active_body (tmp_field -> nbody[j], j);
      tmp_fbody -> next = init_field_nth_body (tmp_field -> nbody[j], j, NULL, NULL, NULL);
      tmp_fbody -> next -> prev = g_malloc0(sizeof*tmp_fbody -> next -> prev);
      tmp_fbody -> next -> prev = tmp_fbody;
    }
    if (j == 2)
    {
      cross = NULL;
      cross = alloctdouble (tmp_field -> nbody[j]+1, tmp_field -> nbody[j]+1, 3);
      if (tmp_field -> cross != NULL)
      {
        for (k=0; k<tmp_field -> nbody[j]; k++)
        {
          for (l=0; l<tmp_field -> nbody[j]; l++)
          {
            for (m=0; m<3; m++) cross[k][l][m] = cross[l][k][m] = tmp_field -> cross[k][l][m];
          }
        }
      }
      else
      {
        tmp_field -> cross = alloctdouble (1, 1, 3);
      }
    }
    edit_parameters (i, tmp_field -> nbody[j]);
    save_it = FALSE;
    k = body_at (j);
    for (l=0; l<k; l++) if (tmp_fbody -> na[l] > -1) save_it = TRUE;
    if (save_it)
    {
      tmp_field -> nbody[j] ++;
      for (l=0; l<k; l++) if (tmp_fbody -> na[l] < 0) tmp_fbody -> use = FALSE;
      if (j == 2) check_tersoffs (tmp_fbody -> id, tmp_fbody -> key);
    }
    else
    {
      tmp_fbody = get_active_body (tmp_field -> nbody[j], j);
      tmp_fbody -> next = NULL;
      if (tmp_field -> nbody[j] == 0) tmp_field -> first_body[j] = NULL;
    }
  }
  update_field_trees ();
}

G_MODULE_EXPORT void remove_field_prop (GSimpleAction * action, GVariant * parameter, gpointer data)
{
  int i, j, k, l, m, n, o;
  i = GPOINTER_TO_INT (data);
  gchar * str;
  if (i < MOLIMIT)
  {
    j = combo_get_active (combo_mol[i-1]);
    tmp_fmol = get_active_field_molecule (j);
    str = g_strdup_printf (_("Delete %s N°%d from molecule %s, is this correct ?"), _(elemts[i]), row_id+1, tmp_fmol -> name);
  }
  else
  {
    str = g_strdup_printf (_("Delete %s, is this correct ?"), _(elemts[i]));
  }
  selection_confirmed = FALSE;
  field_question (str, G_CALLBACK(confirm_selection), NULL);
  g_free (str);
  if (selection_confirmed)
  {
    if (i == 2)
    {
      tmp_fshell = get_active_shell (j, row_id);
      if (tmp_fshell == tmp_fmol -> first_shell)
      {
        if (tmp_fshell -> next != NULL)
        {
          tmp_fmol -> first_shell = tmp_fmol -> first_shell -> next;
          tmp_fmol -> first_shell -> prev = NULL;
        }
        else
        {
          tmp_fmol -> first_shell = NULL;
        }
      }
      else if (tmp_fshell -> next == NULL)
      {
        tmp_fshell = tmp_fshell -> prev;
        tmp_fshell -> next = NULL;
      }
      else
      {
        tmp_fshell -> prev -> next = tmp_fshell -> next;
        tmp_fshell -> next -> prev = tmp_fshell -> prev;
      }
      tmp_fmol -> shells --;
      tmp_fshell = tmp_fmol -> first_shell;
      for (j=0; j<tmp_fmol -> shells; j++)
      {
        tmp_fshell -> id = j;
        if (tmp_fshell -> next != NULL) tmp_fshell = tmp_fshell -> next;
      }
    }
    else if (i == 3)
    {
      tmp_fcons = get_active_constraint (j, row_id);
      if (tmp_fcons == tmp_fmol -> first_constraint)
      {
        if (tmp_fcons -> next != NULL)
        {
          tmp_fmol -> first_constraint = tmp_fmol -> first_constraint -> next;
          tmp_fmol -> first_constraint -> prev = NULL;
        }
        else
        {
          tmp_fmol -> first_constraint = NULL;
        }
      }
      else if (tmp_fcons -> next == NULL)
      {
        tmp_fcons = tmp_fcons -> prev;
        tmp_fcons -> next = NULL;
      }
      else
      {
        tmp_fcons -> prev -> next = tmp_fcons -> next;
        tmp_fcons -> next -> prev = tmp_fcons -> prev;
      }
      tmp_fmol -> constraints --;
      tmp_fcons = tmp_fmol -> first_constraint;
      for (j=0; j<tmp_fmol -> constraints; j++)
      {
        tmp_fcons -> id = j;
        if (tmp_fcons -> next != NULL) tmp_fcons = tmp_fcons -> next;
      }
    }
    else if (i == 4)
    {
      tmp_fpmf = get_active_pmf (j, row_id);
      if (tmp_fpmf == tmp_fmol -> first_pmf)
      {
        if (tmp_fpmf -> next != NULL)
        {
          tmp_fmol -> first_pmf = tmp_fmol -> first_pmf -> next;
          tmp_fmol -> first_pmf -> prev = NULL;
        }
        else
        {
          tmp_fmol -> first_pmf = NULL;
        }
      }
      else if (tmp_fpmf -> next == NULL)
      {
        tmp_fpmf = tmp_fpmf -> prev;
        tmp_fpmf -> next = NULL;
      }
      else
      {
        tmp_fpmf -> prev -> next = tmp_fpmf -> next;
        tmp_fpmf -> next -> prev = tmp_fpmf -> prev;
      }
      tmp_fmol -> pmfs --;
      tmp_fpmf = tmp_fmol -> first_pmf;
      for (j=0; j<tmp_fmol -> pmfs; j++)
      {
        tmp_fpmf -> id = j;
        if (tmp_fpmf -> next != NULL) tmp_fpmf = tmp_fpmf -> next;
      }
    }
    else if (i == 5)
    {
      tmp_frig = get_active_rigid (j, row_id);
      if (tmp_frig == tmp_fmol -> first_rigid)
      {
        if (tmp_frig -> next != NULL)
        {
          tmp_fmol -> first_rigid = tmp_fmol -> first_rigid -> next;
          tmp_fmol -> first_rigid -> prev = NULL;
        }
        else
        {
          tmp_fmol -> first_rigid = NULL;
        }
      }
      else if (tmp_frig -> next == NULL)
      {
        tmp_frig = tmp_frig -> prev;
        tmp_frig -> next = NULL;
      }
      else
      {
        tmp_frig -> prev -> next = tmp_frig -> next;
        tmp_frig -> next -> prev = tmp_frig -> prev;
      }
      tmp_fmol -> rigids --;
      tmp_frig = tmp_fmol -> first_rigid;
      for (j=0; j<tmp_fmol -> rigids; j++)
      {
        tmp_frig -> id = j;
        if (tmp_frig -> next != NULL) tmp_frig = tmp_frig -> next;
      }
    }
    else if (i == 6)
    {
      tmp_ftet = get_active_tethered (j, row_id);
      if (tmp_ftet == tmp_fmol -> first_tethered)
      {
        if (tmp_ftet -> next != NULL)
        {
          tmp_fmol -> first_tethered = tmp_fmol -> first_tethered -> next;
          tmp_fmol -> first_tethered -> prev = NULL;
        }
        else
        {
          tmp_fmol -> first_tethered = NULL;
        }
      }
      else if (tmp_ftet -> next == NULL)
      {
        tmp_ftet = tmp_ftet -> prev;
        tmp_ftet -> next = NULL;
      }
      else
      {
        tmp_ftet -> prev -> next = tmp_ftet -> next;
        tmp_ftet -> next -> prev = tmp_ftet -> prev;
      }
      tmp_fmol -> tethered --;
      tmp_ftet = tmp_fmol -> first_tethered;
      for (j=0; j<tmp_fmol -> tethered; j++)
      {
        tmp_ftet -> id = j;
        if (tmp_ftet -> next != NULL) tmp_ftet = tmp_ftet -> next;
      }
    }
    else if (i == SEXTERN)
    {
      tmp_fext = get_active_external (row_id);
      if (tmp_fext == tmp_field -> first_external)
      {
        if (tmp_fext -> next != NULL)
        {
          tmp_field -> first_external = tmp_field -> first_external -> next;
          tmp_field -> first_external -> prev = NULL;
        }
        else
        {
          tmp_field -> first_external = NULL;
        }
      }
      else if (tmp_fext -> next == NULL)
      {
        tmp_fext = tmp_fext -> prev;
        tmp_fext -> next = NULL;
      }
      else
      {
        tmp_fext -> prev -> next = tmp_fext -> next;
        tmp_fext -> next -> prev = tmp_fext -> prev;
      }
      tmp_field -> extern_fields --;
      tmp_fext = tmp_field -> first_external;
      for (k=0; k<tmp_field -> extern_fields; k++)
      {
        tmp_fext -> id = k;
        if (tmp_fext -> next != NULL) tmp_fext = tmp_fext -> next;
      }
    }
    else
    {
      j = i - MOLIMIT;
      tmp_fbody = get_active_body (row_id, j);
      if (j == 2)
      {
        cross = NULL;
        if (tmp_field -> nbody[j] > 1)
        {
          cross = alloctdouble (tmp_field -> nbody[j]-1, tmp_field -> nbody[j]-1, 3);
          m = -1;
          for (k=0; k<tmp_field -> nbody[j]; k++)
          {
            if (k != tmp_fbody -> id)
            {
              m ++;
              n = -1;
              for (l=0; l<tmp_field -> nbody[j]; l++)
              {
                if (l != tmp_fbody -> id)
                {
                  n ++;
                  for (o=0; o<3; o++) cross[m][n][o] = cross[n][m][o] = tmp_field -> cross[k][l][o];
                }
              }
            }
          }
        }
      }
      if (tmp_fbody == tmp_field -> first_body[j])
      {
        if (tmp_fbody -> next != NULL)
        {
          tmp_field -> first_body[j] = tmp_field -> first_body[j] -> next;
          tmp_field -> first_body[j] -> prev = NULL;
        }
        else
        {
          tmp_field -> first_body[j] = NULL;
        }
      }
      else if (tmp_fbody -> next == NULL)
      {
        tmp_fbody = tmp_fbody -> prev;
        tmp_fbody -> next = NULL;
      }
      else
      {
        tmp_fbody -> prev -> next = tmp_fbody -> next;
        tmp_fbody -> next -> prev = tmp_fbody -> prev;
      }
      tmp_field -> nbody[j] --;
      g_free (tmp_fbody);
      tmp_fbody = tmp_field -> first_body[j];
      k = 0;
      while (tmp_fbody)
      {
        tmp_fbody -> id = k;
        k ++;
        tmp_fbody = tmp_fbody -> next;
      }
 
      if (j == 2) check_tersoffs (-1, tmp_field -> first_body[j] -> key);
    }
    update_field_trees ();
  }
}