class Curses::Item

static VALUE
item_initialize(VALUE obj, VALUE name, VALUE description)
{
    struct itemdata *itemp;

    curses_init_screen(Qnil);
    TypedData_Get_Struct(obj, struct itemdata, &itemdata_type, itemp);
    if (itemp->item) {
        rb_raise(rb_eRuntimeError, "already initialized item");
    }
    name = rb_str_export_to_enc(name, terminal_encoding);
    description = rb_str_export_to_enc(description, terminal_encoding);
    itemp->item = new_item(StringValueCStr(name),
                           StringValueCStr(description));
    if (itemp->item == NULL) {
        check_curses_error(errno);
    }

    return obj;
}

static VALUE
item_eq(VALUE obj, VALUE other)
{
    struct itemdata *item1, *item2;

    GetITEM(obj, item1);
    GetITEM(other, item2);
    return item1->item == item2->item ? Qtrue : Qfalse;
}

static VALUE
item_description_m(VALUE obj)
{
    struct itemdata *itemp;
    const char *desc;

    GetITEM(obj, itemp);
    desc = item_description(itemp->item);
    return rb_external_str_new_with_enc(desc, strlen(desc), terminal_encoding);
}

static VALUE
item_name_m(VALUE obj)
{
    struct itemdata *itemp;
    const char *name;

    GetITEM(obj, itemp);
    name = item_name(itemp->item);
    return rb_external_str_new_with_enc(name, strlen(name), terminal_encoding);
}

static VALUE
item_opts_m(VALUE obj)
{
    struct itemdata *itemp;

    GetITEM(obj, itemp);
    return INT2NUM(item_opts(itemp->item));
}

static VALUE
item_opts_off_m(VALUE obj, VALUE opts)
{
    struct itemdata *itemp;
    int error;

    GetITEM(obj, itemp);
    error = item_opts_off(itemp->item, NUM2INT(opts));
    check_curses_error(error);
    return obj;
}

static VALUE
item_opts_on_m(VALUE obj, VALUE opts)
{
    struct itemdata *itemp;
    int error;

    GetITEM(obj, itemp);
    error = item_opts_on(itemp->item, NUM2INT(opts));
    check_curses_error(error);
    return obj;
}

static VALUE
item_set_opts(VALUE obj, VALUE opts)
{
    struct itemdata *itemp;
    int error;

    GetITEM(obj, itemp);
    error = set_item_opts(itemp->item, NUM2INT(opts));
    check_curses_error(error);
    return obj;
}