Re: [gtk-list] Re: Question about sorting a CLIST

[Martin Norb{ck <d95mback dtek chalmers se>]

Tue Nov 16 1999, Martin Norb{ck ->
> Mon Nov 15 1999, Raul Dias ->
> > Hi again,
> > 
> > I have two questions about sorting a clist.
> > The first one.
> > 
> > Is there any other sorting type, other than ascending and descending?
> > Like numeric.  Or I have to implement that in my app?
> 
> I had the same problem, so I just cut'n'pasted the code from gtkclist.c
> and changed it a bit. Look at the bottom of this message.

Ooops, forgot to attach the code :) here it is:
(It could be trimmed down a bit if you don't have pixtexts)

// Used as a comparing function to sort numerically
static gint
numeric_compare (GtkCList      *clist,
                 gconstpointer  ptr1,
                 gconstpointer  ptr2)
{
  char *text1 = NULL;
  char *text2 = NULL;      
  int val1;
  int val2;
        
  GtkCListRow *row1 = (GtkCListRow *) ptr1;
  GtkCListRow *row2 = (GtkCListRow *) ptr2;
  
  switch (row1->cell[clist->sort_column].type)
    {
    case GTK_CELL_TEXT:
      text1 = GTK_CELL_TEXT (row1->cell[clist->sort_column])->text;
      break;
    case GTK_CELL_PIXTEXT:
      text1 = GTK_CELL_PIXTEXT (row1->cell[clist->sort_column])->text;
      break;
    default:
      break;
    }
  
  switch (row2->cell[clist->sort_column].type)
    {
    case GTK_CELL_TEXT:
      text2 = GTK_CELL_TEXT (row2->cell[clist->sort_column])->text;
      break;
    case GTK_CELL_PIXTEXT:
      text2 = GTK_CELL_PIXTEXT (row2->cell[clist->sort_column])->text;
      break;
    default: 
      break;
    }

  if (!text2)
    return (text1 != NULL);

  if (!text1)
    return -1;

  val1 = atoi (text1);
  val2 = atoi (text2);
  if (val1 > val2)
    return 1;
  if (val1 < val2)
    return -1;
  return 0;
}



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