+NCURSES_EXPORT(int)
+_nc_format_slks(NCURSES_SP_DCLx int cols)
+{
+ int gap, i, x;
+ int max_length;
+
+ if (!SP_PARM || !SP_PARM->_slk)
+ return ERR;
+
+ max_length = SP_PARM->_slk->maxlen;
+ if (SP_PARM->slk_format >= 3) { /* PC style */
+ gap = (cols - 3 * (3 + 4 * max_length)) / 2;
+
+ if (gap < 1)
+ gap = 1;
+
+ for (i = x = 0; i < SP_PARM->_slk->maxlab; i++) {
+ SP_PARM->_slk->ent[i].ent_x = x;
+ x += max_length;
+ x += (i == 3 || i == 7) ? gap : 1;
+ }
+ } else {
+ if (SP_PARM->slk_format == 2) { /* 4-4 */
+ gap = cols - (int) (SP_PARM->_slk->maxlab * max_length) - 6;
+
+ if (gap < 1)
+ gap = 1;
+ for (i = x = 0; i < SP_PARM->_slk->maxlab; i++) {
+ SP_PARM->_slk->ent[i].ent_x = x;
+ x += max_length;
+ x += (i == 3) ? gap : 1;
+ }
+ } else {
+ if (SP_PARM->slk_format == 1) { /* 1 -> 3-2-3 */
+ gap = (cols - (SP_PARM->_slk->maxlab * max_length) - 5)
+ / 2;
+
+ if (gap < 1)
+ gap = 1;
+ for (i = x = 0; i < SP_PARM->_slk->maxlab; i++) {
+ SP_PARM->_slk->ent[i].ent_x = x;
+ x += max_length;
+ x += (i == 2 || i == 4) ? gap : 1;
+ }
+ } else {
+ return slk_failed(NCURSES_SP_ARG);
+ }
+ }
+ }
+ SP_PARM->_slk->dirty = TRUE;
+
+ return OK;
+}
+