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/*
* wavemon - a wireless network monitoring aplication
*
* Copyright (c) 2001-2002 Jan Morgenstern <jan@jm-music.de>
*
* wavemon is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2, or (at your option) any later
* version.
*
* wavemon is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along
* with wavemon; see the file COPYING. If not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "wavemon.h"
/* Make configuration screen fit into half of minimum screen width */
#define CONF_SCREEN_WIDTH (MIN_SCREEN_COLS / 2)
/*
* Maximum number of rows in the configuration box. Due to the top
* border, this is one less than the maximum vertical number of rows.
*/
#define MAX_NUM_CONF_ROWS (MAXYLEN - 1)
/* GLOBALS */
extern int conf_items; /* index into array storing menu items */
static WINDOW *w_conf, *w_confpad;
static int first_item, active_item;
static int num_items, list_offset;
static void waddstr_item(WINDOW *w, int y, struct conf_item *item, char hilight)
{
char s[0x40];
wattrset(w, COLOR_PAIR(CP_PREF_NORMAL));
mvwhline(w, y, 0, ' ', CONF_SCREEN_WIDTH);
if (item->type != t_sep && item->type != t_func) {
mvwaddstr(w, y, item->dep ? 2 : 0, item->name);
switch (item->type) {
case t_int:
sprintf(s, "%d", *item->v.i);
break;
case t_list:
assert(item->list && item->list[*item->v.i]);
strncpy(s, item->list[*item->v.i], sizeof(s));
/* Fall through, dummy statements to pacify gcc -Wall */
case t_sep:
case t_func:
break;
}
if (!item->unit) {
wmove(w, y, CONF_SCREEN_WIDTH - strlen(s));
if (hilight) {
wattron(w, A_REVERSE);
waddstr_b(w, s);
wattroff(w, A_REVERSE);
} else
waddstr_b(w, s);
} else {
wmove(w, y, CONF_SCREEN_WIDTH - strlen(s) - strlen(item->unit) - 1);
if (hilight) {
wattron(w, A_REVERSE);
waddstr_b(w, s);
wattroff(w, A_REVERSE);
} else
waddstr_b(w, s);
mvwaddstr(w, y, CONF_SCREEN_WIDTH - strlen(item->unit), item->unit);
}
} else if (item->type == t_sep && item->name) {
sprintf(s, "- %s -", item->name);
mvwaddstr(w, y, (CONF_SCREEN_WIDTH - strlen(s)) / 2, s);
} else if (item->type == t_func) {
wmove(w, y, (CONF_SCREEN_WIDTH - strlen(item->name)) / 2);
if (hilight) {
wattron(w, A_REVERSE);
waddstr(w, item->name);
wattroff(w, A_REVERSE);
} else
waddstr(w, item->name);
}
}
static void change_item(int inum, char sign)
{
struct conf_item *item = ll_get(conf_items, inum);
int tmp;
switch (item->type) {
case t_int:
if (*item->v.i + item->inc * sign <= item->max &&
*item->v.i + item->inc * sign >= item->min)
*item->v.i += item->inc * sign;
break;
case t_list:
*item->v.i = *item->v.i + sign;
tmp = argv_count(item->list);
if (*item->v.i >= tmp)
*item->v.i = 0;
else if (*item->v.i < 0)
*item->v.i = tmp - 1;
/* Fall through, dummy statements to pacify gcc -Wall */
case t_sep:
case t_func:
break;
}
}
static int select_item(int rv, int incr)
{
struct conf_item *item;
do {
rv += incr;
item = ll_get(conf_items, rv);
} while (item->type == t_sep || (item->dep && !*item->dep));
return rv;
}
/* Perform selection, return offset value to ensure pad fits inside window */
static int m_pref(WINDOW *w_conf, int list_offset, int active_item, int num_items)
{
int active_line, i, j;
werase(w_conf);
for (active_line = i = j = 0; i < num_items; i++) {
struct conf_item *item = ll_get(conf_items, i);
if (!item->dep || *item->dep) {
if (i != active_item)
waddstr_item(w_conf, j++, item, 0);
else {
waddstr_item(w_conf, j, item, 1);
active_line = j++;
}
}
}
if (active_line - list_offset > MAX_NUM_CONF_ROWS)
return active_line - MAX_NUM_CONF_ROWS;
if (active_line < list_offset)
return active_line;
return list_offset;
}
void scr_conf_init(void)
{
struct conf_item *item;
conf_get_interface_list(false); /* may have changed in the meantime */
num_items = ll_size(conf_items);
w_conf = newwin_title(0, WAV_HEIGHT, "Preferences", false);
w_confpad = newpad(num_items + 1, CONF_SCREEN_WIDTH);
if (first_item) /* already initialized */
return;
while ((item = ll_get(conf_items, first_item)) && item->type == t_sep)
first_item++;
active_item = first_item;
}
int scr_conf_loop(WINDOW *w_menu)
{
struct conf_item *item;
int key;
list_offset = m_pref(w_confpad, list_offset, active_item, num_items);
prefresh(w_confpad, list_offset, 0,
1, (WAV_WIDTH - CONF_SCREEN_WIDTH)/2,
MAXYLEN, (WAV_WIDTH + CONF_SCREEN_WIDTH)/2);
wrefresh(w_conf);
key = wgetch(w_menu);
switch (key) {
case KEY_HOME:
active_item = first_item;
break;
case KEY_END:
active_item = num_items - 1;
break;
case KEY_DOWN:
case KEY_NPAGE:
active_item = select_item(active_item, 1);
if (active_item >= num_items) {
active_item = first_item;
list_offset = 0;
}
break;
case KEY_UP:
case KEY_PPAGE:
active_item = select_item(active_item, -1);
if (active_item < first_item)
active_item = num_items - 1;
break;
case KEY_LEFT:
change_item(active_item, -1);
break;
case KEY_RIGHT:
change_item(active_item, 1);
break;
case '\r':
item = ll_get(conf_items, active_item);
if (item->type == t_func) {
flash();
(*item->v.fp)();
}
}
return key;
}
void scr_conf_fini(void)
{
delwin(w_conf);
delwin(w_confpad);
}
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