unsigned int nmaster = NMASTER;

void
nmtile(void) {
	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
	Client *c;

	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
		n++;
	/* window geoms */
	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
	mw = (n > nmaster) ? waw * mwfact : waw;
	th = (n > nmaster) ? wah / (n - nmaster) : 0;
	tw = waw - mw;

	for(i = 0, c = nexttiled(clients); c; c = nexttiled(c->next), i++) {
		c->ismax = False;
		nx = wax;
		ny = way;
		if(i < nmaster) {
			ny += i * mh;
			nw = mw - 2 * c->border;
			nh = mh;
			if(i + 1 == (n < nmaster ? n : nmaster)) /* remainder */
				nh = wah - mh * i;
			nh -= 2 * c->border;
		}
		else {  /* tile window */
			nx += mw;
			nw = tw - 2 * c->border;
			if(th > 2 * c->border) {
				ny += (i - nmaster) * th;
				nh = th;
				if(i + 1 == n) /* remainder */
					nh = wah - th * (i - nmaster);
				nh -= 2 * c->border;
			}
			else /* fallback if th <= 2 * c->border */
				nh = wah - 2 * c->border;
		}
		resize(c, nx, ny, nw, nh, RESIZEHINTS);
	}
}

void
incnmaster(const char *arg) {
	int i;

	if(!isarrange(nmtile))
		return;
	if(!arg)
		nmaster = NMASTER;
	else {
		i = atoi(arg);
		if((nmaster + i < 1) || (wah / (nmaster + i) <= 2 * BORDERPX))
			return;
		nmaster += i;
	}
	arrange();
}