6 #include <math.h>

    13 

    14 void

    15 arrange(void *aux)

    16 {

    17 	Client *c;

    18 	int n, cols, rows, gw, gh, i, j;

    19     float rt, fd;

    20 

    21 	if(!clients)

    22 		return;

    23 	for(n = 0, c = clients; c; c = c->next, n++);

    24 	rt = sqrt(n);

    25 	if(modff(rt, &fd) < 0.5)

    26 		rows = floor(rt);

    27 	else

    28 		rows = ceil(rt);

    29 	if(rows * rows < n)

    30 		cols = rows + 1;

    31 	else

    32 		cols = rows;

    33 

    34 	gw = (sw - 1)  / cols;

    35 	gh = (sh - bh - 1) / rows;

    36 

    37 	for(i = j = 0, c = clients; c; c = c->next) {

    38 		c->x = i * gw;

    39 		c->y = j * gh + bh;

    40 		c->w = gw;

    41 		c->h = gh;

    42 		resize(c);

    43 		if(++i == cols) {

    44 			j++;

    45 			i = 0;

    46 		}

    47 	}

    48 }

    49 

    50 void

    51 sel(void *aux)

    52 {

    53 	const char *arg = aux;

    54 	Client *c = NULL;

    55 

    56 	if(!arg || !stack)

    57 		return;

    58 	if(!strncmp(arg, "next", 5))

    59 		c = stack->snext ? stack->snext : stack;

    60 	else if(!strncmp(arg, "prev", 5))

    61 		for(c = stack; c && c->snext; c = c->snext);

    62 	if(!c)

    63 		c = stack;

    64 	raise(c);

    65 	focus(c);

    66 }

    67 

    68 void

    69 kill(void *aux)

    70 {

    71 	Client *c = stack;

    72 

    73 	if(!c)

    74 		return;

    75 	if(c->proto & WM_PROTOCOL_DELWIN)

    76 		send_message(c->win, wm_atom[WMProtocols], wm_atom[WMDelete]);

    77 	else

    78 		XKillClient(dpy, c->win);

    79 }