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/*
*  the following callback reads in ~/.VBC/.Instructions.txt that tells how to
*  use VBC.  [[ May need/WANT to divide to explain "Display Textfile" (?)]]
*/
void
show_instructions_cb (void)
{

#define INSTRUCT ".Instructions.txt"
  GtkWidget *window, *view, *vbox, *separator;
  GtkWidget *close;
  GtkWidget *frame;
  GtkTextBuffer *buffer;
  GtkTextIter iter;
  FILE *infile;
  gchar file_buff[MAXCHAT];
  gchar instruction[32];
  gint nchars;

  /*
     set up file to be read into frame
   */
  sprintf (instruction, "%s%s", vhome, INSTRUCT);       /* name of instructions file
                                                         */
  printf ("DEBUG: show_file: instruction = [%s]\n", instruction);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_default_size (GTK_WINDOW (window), 500, 500);
//--gtk_window_set_title(GTK_WINDOW(window), "Groat");
  gtk_window_set_title (GTK_WINDOW (window), "Instructions");
/* this tells the window manager the smallest size
* good idea to set this, else the UI can start to look goofy
*/
  gtk_widget_set_usize (window, 200, 200);
  gtk_container_set_border_width (GTK_CONTAINER (window), 8);
/* adding a frame around the vbox to make things look better */
  frame = gtk_frame_new ("MAYBE Help-1 {or 2 or 3}" ");
  gtk_container_add (GTK_CONTAINER (window), frame);
/* at this point we have:
* window with a frame inside it ( a frame is a container )
*/

  vbox = gtk_vbox_new (FALSE, 5);
  gtk_container_add (GTK_CONTAINER (frame), vbox);
/* now we added a vbox container, to our frame*/

  view = gtk_text_view_new ();
  gtk_container_set_border_width (GTK_CONTAINER (view), 6);
  gtk_container_add (GTK_CONTAINER (vbox), view);
/* added the text view to the vbox */

  separator = gtk_hseparator_new ();
  gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, TRUE, 0);
/* using box packing allows automatic sizing, good idea for
* a seperator (let gtk figure it out)
* so now we packed a seperator below our text view */
  GtkWidget *hbox = gtk_hbox_new (FALSE, 5);
  gtk_container_set_border_width (GTK_CONTAINER (hbox), 2);
  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, TRUE, 0);

  close = gtk_button_new_with_label (" Close window ");

  gtk_box_pack_end (GTK_BOX (hbox), close, TRUE, TRUE, FALSE);

/* fetch the buffer from the text view and get offset 0 */
  buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
  gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);

/* pull in data from instructions file and insert starting at iter */
  chdir (vhome);
  infile = fopen (instruction, " r ");
  if (infile)
    {
      while (1)
        {
          nchars = fread (file_buff, 1, MAXCHAT, infile);
          gtk_text_buffer_insert (buffer, &iter, file_buff, nchars);
          if (nchars < MAXCHAT)
            break;
        }
      fclose (infile);
    }
  else
    g_print (" \ nERROR ! could not open % s \ n ", instruction);

/* no reason to type out all that crap of showing each widget
* with this example */

  gtk_signal_connect (GTK_OBJECT (close), " button_press_event ",
                      (GtkSignalFunc) remove_text_window, window);

  gtk_widget_show_all (window);
  return;
}