Re: radio_button behavior with toggle_button style ?

[Alain D'EURVEILHER <deurveia esiee fr>]

I tried but... i cannot make it do what i want...

AlaiN.

Le Samedi 10 Janvier 2004 10:31, Olexiy Avramchenko a écrit :
> Alain D'EURVEILHER wrote:
> >Hi,
> >
> >Is it possible to make a group of toggle button, but behavioring as the
> >radiobuttons ??
> >
> >Here it is... : have for example 3 toggle_button and, pressing one down
> >release (up) the other ones...
>
> Hello, here's one of the possible solutions:
>
> static void button_toggled(GtkToggleButton *toggle, GSlist **list)
> {
> GSlist *node;
>
>     g_return_if_fail(*list != NULL);    /* this is for debugging only */
>
>     if (!toggle->active)    /* skip the code below if button is depressed
> */ return;
>
>     for (node=*list; node!=NULL; node=node->next)
>         if (node->data != toggle)    /* iterate through the list and
> deactivate all buttons other than pressed */
>
> gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON((*list)->data), FALSE);
> }
>
> /* helper function, saves some lines of code */
> static GtkWidget *toggle_new(GSList **list, const gchar *label)
> {
> GtkWidget *button;
>
>     button = gtk_toggle_button_new_with_label(label);
>     g_signal_connect(button, "toggle", G_CALLBACK(button_toggled), list);
>     *list = g_slist_prepend(*list, button);    /* adding button to the
> list (prepend is faster than append) */
> }
>
> void setup()
> {
> GtkWidget *button1, *button2, *button3;
> static GSList *list;    /* this var SHOULD be static */
>
>     /* creating 3 widgets */
>     button1 = toggle_new(&list, "toggle 1");
>     button2 = toggle_new(&list, "toggle 2");
>     button3 = toggle_new(&list, "toggle 3");
> }
>
> PS: I just typed some C lines here, so some typos/bugs can be found
>
>     Olexiy
>
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