Re: [dialog] make hotkeys hotter for quick selection in radiolists?

[sunnycemetery]

Would including as optional the feature described below be out of the question? 
 It would be nice to make a radio list selection with a single key, provided 
the selection were unambiguous.

(This is an old item from the mailing list that never got the response it 
deserved.)

On 2016年05月25日 14時51分, Cristian Rigamonti wrote:
> On Tue, May 10, 2016 at 09:49:00PM +0200, Cristian Rigamonti wrote:
> > Is it possible to configure dialog so that by hitting a hot key the
> > corresponding item will be selected?
>
> Ok, in case anyone else is interested, the attached patch implements this
> feature.
>
> Basically, I've duplicated part of the code that implements toggling an item
> when pressing the space key (lines 401...).
>
> Disclaimer: this is just a quick hack that works for me, but I don't know the
> dialog code base very well, so this might not be the right way to implement it,
> or it might even cause strange effects: suggestions and corrections are welcome!
>
> Cri
>
> --
> GPG/PGP Key-Id 0x943A5F0E      -    http://www.linux.it/~cri/cri.asc

> Index: dialog-1.3-20160424/checklist.c
> ===================================================================
> --- dialog-1.3-20160424.orig/checklist.c        2015-01-26 00:53:06.000000000 
> +0100
> +++ dialog-1.3-20160424/checklist.c     2016-05-25 14:31:18.000000000 +0200
> @@ -537,6 +537,30 @@
>                     print_list(&all, choice, scrollamt, max_choice);
>                 }
>             }
> +           // START hotter-keys
> +           int current = scrollamt + choice;
> +           int next = items[current].state + 1;
> +           if (next >= num_states)
> +               next = 0;
> +           for (i = 0; i < item_no; i++) {
> +               if (i != current) {
> +                   items[i].state = 0;
> +               }
> +           }
> +           if (items[current].state) {
> +               getyx(dialog, cur_y, cur_x);
> +               items[current].state = next ? next : 1;
> +               print_item(&all, all.list,
> +                          &items[current],
> +                          states,
> +                          choice, TRUE);
> +               (void) wnoutrefresh(all.list);
> +               (void) wmove(dialog, cur_y, cur_x);
> +           } else {
> +               items[current].state = 1;
> +               print_list(&all, choice, scrollamt, max_choice);
> +           }
> +           // END hotter-keys
>             continue;           /* wait for another key press */
>         }