w_chains.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) 2022-2024 by CNRS and University of Strasbourg */
 
/*
* This file: 'w_chains.c'
*
* Contains:
*
 
 - The functions to create the chain(s) tab for the advanced environments window
 
*
* List of functions:
 
  int get_cmin (project * this_proj, int step);
  int get_cmax (project * this_proj, int step);
 
  void fill_chains_model (GtkTreeStore * store, project * this_proj);
  void add_this_chain_to_search_tree (project * this_proj);
 
  G_MODULE_EXPORT void on_select_chains (GtkCellRendererToggle * cell_renderer, gchar * string_path, gpointer data);
  G_MODULE_EXPORT void update_chains_search (GtkEntry * res, gpointer data);
 
  GtkWidget * create_chains_tree (project * this_proj, gboolean fill_this);
  GtkWidget * create_chains_search (project * this_proj);
  GtkWidget * chains_tab (glwin * view);
 
*/
 
#include "global.h"
#include "interface.h"
#include "glview.h"
#include "glwindow.h"
 
extern void rings_set_visible (GtkTreeViewColumn * col, GtkCellRenderer * renderer, GtkTreeModel * mod, GtkTreeIter * iter, gpointer data);
 
G_MODULE_EXPORT void on_select_chains (GtkCellRendererToggle * cell_renderer, gchar * string_path, gpointer data)
{
  tint * dat = (tint * )data;
  gboolean saved_label[2];
  int i, j, c, s, v, u, a, b;
  opengl_project_changed(dat -> a);
  coord_edition * coord = opengl_project -> modelgl -> coord_win;
  b = (opengl_project -> steps > 1) ? 1: 0;
  c = dat -> b;
  if (gtk_cell_renderer_toggle_get_active(cell_renderer))
  {
    v = 0;
  }
  else
  {
    v = 1;
  }
  GtkTreeIter iter;
  GtkTreePath * path = gtk_tree_path_new_from_string (string_path);
  gtk_tree_model_get_iter (GTK_TREE_MODEL(coord -> chains_model), & iter, path);
  gtk_tree_store_set (coord -> chains_model, & iter, c, v, -1);
  if (b)
  {
    gtk_tree_model_get (GTK_TREE_MODEL(coord -> chains_model), & iter, 0, & s, -1);
    s = - s - 1;
  }
  else
  {
    s = 0;
  }
  gtk_tree_model_get (GTK_TREE_MODEL(coord -> chains_model), & iter, b, & i, -1);
  i = -i;
  gtk_tree_model_get (GTK_TREE_MODEL(coord -> chains_model), & iter, b+1, & j, -1);
  switch (c-b)
  {
    case 2:
      // Viz
      for (u=0; u<i; u++)
      {
        a = opengl_project -> modelgl -> all_chains[s][i-1][j-1][u];
#ifdef GTK4
        if (opengl_project -> atoms[s][a].show[0] != v) show_hide_this_atom (NULL, NULL, GINT_TO_POINTER(a));
#else
        if (opengl_project -> atoms[s][a].show[0] != v) show_hide_this_atom (NULL, GINT_TO_POINTER(a));
#endif // GTK4
      }
      break;
    case 3:
      // Label
      for (u=0; u<i; u++)
      {
        a = opengl_project -> modelgl -> all_chains[s][i-1][j-1][u];
        opengl_project -> atoms[s][a].label[0] = opengl_project -> atoms[s][a].label[1] = v;
      }
      opengl_project -> modelgl -> create_shaders[LABEL] = TRUE;
      break;
    case 4:
      // Pick
      for (u=0; u<i; u++)
      {
        a = opengl_project -> modelgl -> all_chains[s][i-1][j-1][u];
        saved_label[0] = opengl_project -> atoms[s][a].label[0];
        saved_label[1] = opengl_project -> atoms[s][a].label[1];
#ifdef GTK4
        if (opengl_project -> atoms[s][a].pick[0] != v) select_unselect_this_atom (NULL, NULL, GINT_TO_POINTER(a));
#else
        if (opengl_project -> atoms[s][a].pick[0] != v) select_unselect_this_atom (NULL, GINT_TO_POINTER(a));
#endif // GTK4
        opengl_project -> atoms[s][a].label[0] = saved_label[0];
        opengl_project -> atoms[s][a].label[1] = saved_label[1];
      }
      break;
  }
  update (opengl_project -> modelgl);
}
 
void fill_chains_model (GtkTreeStore * store, project * this_proj)
{
  GtkTreeIter step_level, size_level, chain_level;
  int h, i, j, k, l;
  if (this_proj -> coord -> totcoord[9])
  {
    for (h=0; h < this_proj -> steps; h++)
    {
      if (this_proj -> steps > 1)
      {
        gtk_tree_store_append (store, & step_level, NULL);
        gtk_tree_store_set (store, & step_level, 0, h+1,
                                                 1, 0,
                                                 2, 0,
                                                 3, 0,
                                                 4, 0,
                                                 5, 0, -1);
      }
      for (i=0; i < this_proj -> coord -> totcoord[9]; i++)
      {
        j = this_proj -> coord -> geolist[9][0][i];
        k = this_proj -> modelgl -> num_chains[h][j-1];
        if (this_proj -> steps > 1 && k > 0)
        {
          gtk_tree_store_append (store, & size_level, & step_level);
          gtk_tree_store_set (store, & size_level, 0, 0,
                                                   1, j,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0,
                                                   5, 0, -1);
        }
        else if (this_proj -> steps == 1)
        {
          gtk_tree_store_append (store, & size_level, NULL);
          gtk_tree_store_set (store, & size_level, 0, j,
                                                   1, 0,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0, -1);
        }
        for (l=0; l<k; l++)
        {
          gtk_tree_store_append (store, & chain_level, & size_level);
          if (this_proj -> steps > 1)
          {
            gtk_tree_store_set (store, & chain_level, 0, -(h+1),
                                                      1, -j,
                                                      2, l+1,
                                                      3, FALSE,
                                                      4, FALSE,
                                                      5, FALSE, -1);
          }
          else
          {
            gtk_tree_store_set (store, & chain_level, 0, -j,
                                                      1, l+1,
                                                      2, FALSE,
                                                      3, FALSE,
                                                      4, FALSE, -1);
          }
        }
      }
    }
  }
}
 
GtkWidget * create_chains_tree (project * this_proj, gboolean fill_this)
{
  int i, j, k;
  GtkTreeViewColumn * chains_col[7];
  GtkCellRenderer * chains_cell[7];
  gchar * ctitle[6]={"MD. step", "Chain(s) size", "Id.", "Show", "Label", "Pick"};
  gchar * ctype[6]={"text", "text", "text", "active", "active", "active"};
  GType col_type[6]={G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN};
  coord_edition * coord = this_proj -> modelgl -> coord_win;
  j = (this_proj -> steps > 1) ? 1: 0;
  k = (this_proj -> steps > 1) ? 0: 1;
  coord -> chains_model = gtk_tree_store_newv (5+j, col_type);
  if (fill_this) fill_chains_model (coord -> chains_model, this_proj);
  GtkWidget * chains_tree = gtk_tree_view_new_with_model (GTK_TREE_MODEL(coord -> chains_model));
  for (i=0; i<5+j; i++)
  {
    if (i < 2+j)
    {
      chains_cell[i] = gtk_cell_renderer_text_new ();
    }
    else
    {
      chains_cell[i] = gtk_cell_renderer_toggle_new ();
      g_signal_connect (G_OBJECT(chains_cell[i]), "toggled", G_CALLBACK(on_select_chains), & this_proj -> modelgl -> colorp[i][0]);
    }
    gtk_cell_renderer_set_fixed_size (chains_cell[i], -1, 25);
    chains_col[i] = gtk_tree_view_column_new_with_attributes (ctitle[i+k], chains_cell[i], ctype[i+k], i, NULL);
    gtk_tree_view_append_column(GTK_TREE_VIEW(chains_tree), chains_col[i]);
    gtk_tree_view_column_set_alignment (chains_col[i], 0.5);
    gtk_tree_view_column_set_cell_data_func (chains_col[i], chains_cell[i], rings_set_visible, & this_proj -> modelgl -> colorp[i][0], NULL);
  }
  return chains_tree;
}
 
void add_this_chain_to_search_tree (project * this_proj)
{
  GtkTreeIter step_level, size_level, chain_level;
  GtkTreeIter new_level;
  coord_edition * coord = this_proj -> modelgl -> coord_win;
  GtkTreeStore * store = (GtkTreeStore *) coord -> chains_model;
  GtkTreeModel * mod = GTK_TREE_MODEL(coord -> chains_model);
  gboolean valid;
  gboolean insert = TRUE;
  int g, h, i, j, k, l, m;
  int prepend = 0;
  if (this_proj -> steps > 1)
  {
    valid = gtk_tree_model_get_iter_first(mod, & step_level);
    while (valid)
    {
      gtk_tree_model_get (mod, & step_level, 0, & g, -1);
      if (g > coord -> cst)
      {
        prepend = 1;
        valid = FALSE;
      }
      else if (g == coord -> cst)
      {
        if (gtk_tree_model_iter_has_child (mod, &step_level))
        {
          h = gtk_tree_model_iter_n_children (mod, &step_level);
          for (i=0; i<h; i++)
          {
            if (gtk_tree_model_iter_nth_child (mod, &size_level, &step_level, i))
            {
              gtk_tree_model_get (mod, &size_level, 1, & j, -1);
              if (j > coord -> csz)
              {
                prepend = 3;
                valid = FALSE;
                break;
              }
              else if (j == coord -> csz)
              {
                if (gtk_tree_model_iter_has_child (mod, &size_level))
                {
                  k = gtk_tree_model_iter_n_children (mod, &size_level);
                  for (l=0; l<k; l++)
                  {
                    if (gtk_tree_model_iter_nth_child (mod, &chain_level, &size_level, l))
                    {
                      gtk_tree_model_get (mod, &chain_level, 2, & m, -1);
                      if (m > coord -> ch)
                      {
                        prepend = 5;
                        valid = FALSE;
                        break;
                      }
                      else if (m == coord -> ch)
                      {
                        insert = valid = FALSE;
                        break;
                      }
                    }
                  }
                  if (valid)
                  {
                    prepend = 4;
                    valid = FALSE;
                    break;
                  }
                }
              }
            }
          }
          if (valid)
          {
            prepend = 2;
            valid = FALSE;
          }
        }
      }
      else
      {
        valid = gtk_tree_model_iter_next(mod, & step_level);
      }
    }
    if (insert)
    {
      switch (prepend)
      {
        case 0:
          gtk_tree_store_append (store, & step_level, NULL);
          gtk_tree_store_set (store, & step_level, 0, coord -> cst,
                                                   1, 0,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0,
                                                   5, 0, -1);
          gtk_tree_store_append (store, & size_level, & step_level);
          gtk_tree_store_set (store, & size_level, 0, 0,
                                                   1, coord -> csz,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0,
                                                   5, 0, -1);
          gtk_tree_store_append (store, & chain_level, & size_level);
          gtk_tree_store_set (store, & chain_level, 0, -coord -> cst,
                                                    1, -coord -> csz,
                                                    2, coord -> ch,
                                                    3, FALSE,
                                                    4, FALSE,
                                                    5, FALSE, -1);
          break;
        case 1:
          gtk_tree_store_insert_before (store, & new_level, NULL, & step_level);
          gtk_tree_store_set (store, & new_level, 0, coord -> cst,
                                                   1, 0,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0,
                                                   5, 0, -1);
          gtk_tree_store_append (store, & size_level, & new_level);
          gtk_tree_store_set (store, & size_level, 0, 0,
                                                   1, coord -> csz,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0,
                                                   5, 0, -1);
          gtk_tree_store_append (store, & chain_level, & size_level);
          gtk_tree_store_set (store, & chain_level, 0, -coord -> cst,
                                                    1, -coord -> csz,
                                                    2, coord -> ch,
                                                    3, FALSE,
                                                    4, FALSE,
                                                    5, FALSE, -1);
          break;
        case 2:
          gtk_tree_store_insert_after (store, & new_level, & step_level, & size_level);
          gtk_tree_store_set (store, & new_level, 0, 0,
                                                  1, coord -> csz,
                                                  2, 0,
                                                  3, 0,
                                                  4, 0,
                                                  5, 0, -1);
          gtk_tree_store_append (store, & chain_level, & new_level);
          gtk_tree_store_set (store, & chain_level, 0, -coord -> cst,
                                                   1, -coord -> csz,
                                                   2, coord -> ch,
                                                   3, FALSE,
                                                   4, FALSE,
                                                   5, FALSE, -1);
          break;
        case 3:
          gtk_tree_store_insert_before (store, & new_level, & step_level, & size_level);
          gtk_tree_store_set (store, & new_level, 0, 0,
                                                  1, coord -> csz,
                                                  2, 0,
                                                  3, 0,
                                                  4, 0,
                                                  5, 0, -1);
          gtk_tree_store_append (store, & chain_level, & new_level);
          gtk_tree_store_set (store, & chain_level, 0, -coord -> cst,
                                                    1, -coord -> csz,
                                                    2, coord -> ch,
                                                    3, FALSE,
                                                    4, FALSE,
                                                    5, FALSE, -1);
          break;
        case 4:
          gtk_tree_store_insert_after (store, & new_level, & size_level, & chain_level);
          gtk_tree_store_set (store, & new_level, 0, -coord -> cst,
                                                  1, -coord -> csz,
                                                  2, coord -> ch,
                                                  3, FALSE,
                                                  4, FALSE,
                                                  5, FALSE, -1);
          break;
        case 5:
          gtk_tree_store_insert_before (store, & new_level, & size_level, & chain_level);
          gtk_tree_store_set (store, & new_level, 0, -coord -> cst,
                                                  1, -coord -> csz,
                                                  2, coord -> ch,
                                                  3, FALSE,
                                                  4, FALSE,
                                                  5, FALSE, -1);
          break;
      }
    }
  }
  else
  {
    valid = gtk_tree_model_get_iter_first(mod, & size_level);
    while (valid)
    {
      gtk_tree_model_get (mod, & size_level, 0, & i, -1);
      if (i > coord -> csz)
      {
        prepend = 1;
        valid = FALSE;
      }
      else if (i == coord -> csz)
      {
        if (gtk_tree_model_iter_has_child (mod, &size_level))
        {
          j = gtk_tree_model_iter_n_children (mod, &size_level);
          for (k=0; k<j; k++)
          {
            if (gtk_tree_model_iter_nth_child (mod, &chain_level, &size_level, k))
            {
              gtk_tree_model_get (mod, &chain_level, 1, & l, -1);
              if (l > coord -> ch)
              {
                prepend = 2;
                valid = FALSE;
                break;
              }
              else if (l == coord -> ch)
              {
                insert = valid = FALSE;
                break;
              }
            }
          }
          if (valid)
          {
            prepend = 3;
            valid = FALSE;
          }
        }
      }
      else
      {
        valid = gtk_tree_model_iter_next(mod, & step_level);
      }
    }
    if (insert)
    {
      switch (prepend)
      {
        case 0:
          gtk_tree_store_append (store, & size_level, NULL);
          gtk_tree_store_set (store, & size_level, 0, coord -> csz,
                                                   1, 0,
                                                   2, 0,
                                                   3, 0,
                                                   4, 0, -1);
           gtk_tree_store_append (store, & chain_level, & size_level);
           gtk_tree_store_set (store, & chain_level, 0, -coord -> csz,
                                                     1, coord -> ch,
                                                     2, FALSE,
                                                     3, FALSE,
                                                     4, FALSE, -1);
         break;
       case 1:
          gtk_tree_store_insert_before (store, & new_level, NULL, & size_level);
          gtk_tree_store_set (store, & new_level, 0, coord -> csz,
                                                  1, 0,
                                                  2, 0,
                                                  3, 0,
                                                  4, 0, -1);
           gtk_tree_store_append (store, & chain_level, & new_level);
           gtk_tree_store_set (store, & chain_level, 0, -coord -> csz,
                                                     1, coord -> ch,
                                                     2, FALSE,
                                                     3, FALSE,
                                                     4, FALSE, -1);
          break;
        case 2:
          gtk_tree_store_insert_before (store, & new_level, & size_level, & chain_level);
          gtk_tree_store_set (store, & new_level, 0, -coord -> csz,
                                                  1, coord -> ch,
                                                  2, FALSE,
                                                  3, FALSE,
                                                  4, FALSE, -1);
          break;
        case 3:
          gtk_tree_store_insert_after (store, & new_level, & size_level, & chain_level);
          gtk_tree_store_set (store, & new_level, 0, -coord -> csz,
                                                  1, coord -> ch,
                                                  2, FALSE,
                                                  3, FALSE,
                                                  4, FALSE, -1);
          break;
      }
    }
  }
}
 
int get_cmin (project * this_proj, int step)
{
  int i, j;
  for (i=0; i<this_proj -> coord -> totcoord[9]; i++)
  {
     j = this_proj -> coord -> geolist[9][0][i];
     if (this_proj -> modelgl -> num_chains[step-1][j-1]) break;
  }
  return j;
}
 
int get_cmax (project * this_proj, int step)
{
  int i, j;
  for (i=this_proj -> coord -> totcoord[9]-1; i>-1; i--)
  {
     j = this_proj -> coord -> geolist[9][0][i];
     if (this_proj -> modelgl -> num_chains[step-1][j-1]) break;
  }
  return j;
}
 
G_MODULE_EXPORT void update_chains_search (GtkEntry * res, gpointer data)
{
  tint * dat = (tint * )data;
  gchar * str;
  const gchar * m = entry_get_text (res);
  int i, j;
  int v = (int)atof(m);
  project * this_proj = get_project_by_id(dat -> a);
  coord_edition * coord = this_proj -> modelgl -> coord_win;
  switch (dat -> b)
  {
    case 0:
      if (v > 0 && v < this_proj -> steps+1)
      {
        if (v != coord -> cst)
        {
          coord -> cst = v;
          coord -> csz = coord -> ch = -1;
          for (j=1; j<3; j++) gtk_label_set_text (GTK_LABEL(coord -> chlab[j]), "");
        }
      }
      else
      {
        coord -> cst = coord -> csz = coord -> ch = -1;
      }
      if (coord -> cst > 0)
      {
        update_entry_int(res, coord -> cst);
        str = g_strdup_printf ("in [%d - %d]", get_cmin(this_proj, coord -> cst), get_cmax(this_proj, coord -> cst));
        gtk_label_set_text (GTK_LABEL(coord -> chlab[1]), str);
        g_free (str);
      }
      else
      {
        update_entry_text (res, "");
        for (j=1; j<3; j++) gtk_label_set_text (GTK_LABEL(coord -> chlab[j]), "");
      }
      break;
    case 1:
      if (coord -> cst > -1)
      {
        i = get_cmin(this_proj, coord -> cst);
        j = get_cmax(this_proj, coord -> cst);
        if (v >= i && v <= j)
        {
          if (v != coord -> csz)
          {
            if (this_proj -> modelgl -> num_chains[coord -> cst-1][coord -> csz-1])
            {
              coord -> csz = v;
              coord -> ch = -1;
              gtk_label_set_text (GTK_LABEL(coord -> chlab[2]), "");
            }
            else
            {
              coord -> csz = coord -> ch = -1;
            }
          }
        }
      }
      else
      {
        coord -> csz = coord -> ch = -1;
      }
      if (coord -> csz > 0)
      {
        update_entry_int(res, coord -> csz);
        str = g_strdup_printf ("in [1 - %d]", this_proj -> modelgl -> num_chains[coord -> cst-1][coord -> csz-1]);
        gtk_label_set_text (GTK_LABEL(coord -> chlab[2]), str);
        g_free (str);
      }
      else
      {
        update_entry_text (res, "");
        gtk_label_set_text (GTK_LABEL(coord -> chlab[2]), "");
      }
      break;
    case 2:
      if (coord -> cst > -1 && coord -> csz > -1)
      {
        if (v > 0 && v < this_proj -> modelgl -> num_chains[coord -> cst-1][coord -> csz-1]+1)
        {
          coord -> ch = v;
        }
        else
        {
          coord -> ch = -1;
        }
      }
      else
      {
        coord -> ch = -1;
      }
      if (coord -> ch > 0)
      {
        update_entry_int(res, coord -> ch);
      }
      else
      {
        update_entry_text (res, "");
      }
      break;
  }
  if (coord -> cst > 0 && coord -> csz > 0 && coord -> ch > 0)
  {
    add_this_chain_to_search_tree (this_proj);
  }
}
 
GtkWidget * create_chains_search (project * this_proj)
{
  GtkWidget * chains_search = create_vbox (BSEP);
  gchar * str = g_strdup_printf ("Too many chains in your model !\n"
                                 "  It is impossible to display the entire list ...\n"
                                 "... instead you can look for chain(s) 'manually':\n");
  add_box_child_start (GTK_ORIENTATION_VERTICAL, chains_search, markup_label(str, 200, -1, 0.5, 0.5), FALSE, FALSE, 10);
  g_free (str);
  gchar * search_item[3]={"MD step:", "Chain size:", "Chain ID:"};
  int i, j;
  GtkWidget * hbox;
  GtkWidget * entry;
  j = (this_proj -> steps) > 1 ? 0 : 1;
  coord_edition * coord = this_proj -> modelgl -> coord_win;
  coord -> cst = 1;
  for (i=j; i<3; i++)
  {
    hbox = create_hbox (0);
    add_box_child_start (GTK_ORIENTATION_VERTICAL, chains_search, hbox, FALSE, FALSE, 0);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, markup_label(search_item[i], 100, -1, 0.0, 0.5), FALSE, FALSE, 20);
    entry = create_entry (G_CALLBACK(update_chains_search), 100, 15, FALSE, & this_proj -> modelgl -> colorp[i][0]);
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox,entry, FALSE, FALSE, 0);
    if (i==0)
    {
      str = g_strdup_printf ("in [1 - %d]", this_proj -> steps);
      coord -> chlab[i] = markup_label(str, 50, -1, 0.0, 0.5);
      g_free (str);
    }
    else if (i == 1)
    {
      str = g_strdup_printf ("in [%d - %d]", get_cmin(this_proj, coord -> cst), get_cmax(this_proj, coord -> cst));
      coord -> chlab[i] = markup_label(str, 50, -1, 0.0, 0.5);
      g_free (str);
    }
    else
    {
      coord -> chlab[i] = markup_label("", 50, -1, 0.0, 0.5);
    }
    add_box_child_start (GTK_ORIENTATION_HORIZONTAL, hbox, coord -> chlab[i], FALSE, FALSE, 5);
  }
  add_box_child_start (GTK_ORIENTATION_VERTICAL, chains_search, markup_label("<b>Search result(s)</b>", 200, -1, 0.5, 0.5), FALSE, FALSE, 10);
  add_box_child_start (GTK_ORIENTATION_VERTICAL, chains_search, create_chains_tree (this_proj, FALSE), FALSE, FALSE, 0);
  return chains_search;
}
 
GtkWidget * chains_tab (glwin * view)
{
  GtkWidget * chains = create_scroll(NULL, -1, -1, GTK_SHADOW_NONE);
  gtk_widget_set_hexpand (chains, TRUE);
  gtk_widget_set_vexpand (chains, TRUE);
 int h, i, j, k;
  project * this_proj = get_project_by_id(view -> proj);
  k = 0;
  for (h=0; h < this_proj -> steps; h++)
  {
    for (i=0; i < this_proj -> coord -> totcoord[9]; i++)
    {
      j = this_proj -> coord -> geolist[9][0][i];
      k += this_proj -> modelgl -> num_chains[h][j-1];
    }
  }
  if (k < 10000)
  {
    add_container_child (CONTAINER_SCR, chains, create_chains_tree (this_proj, TRUE));
  }
  else
  {
    add_container_child (CONTAINER_SCR, chains, create_chains_search (this_proj));
  }
  return chains;
}