void
horizgrid(Monitor *m) {
	Client *c;
	unsigned int n, i;
	int mx = 0, my = 0, mh = 0, mw = 0;
	int sx = 0, sy = 0, sh = 0, sw = 0;
	int ntop;
	float mfacts = 0, sfacts = 0;
	int mrest, srest, mtotal = 0, stotal = 0;

	int oh, ov, ih, iv;
	getgaps(m, &oh, &ov, &ih, &iv, &n);
	sx = mx = m->wx + ov;
	sy = my = m->wy + oh;
	sh = mh = m->wh - 2*oh;
	sw = mw = m->ww - 2*ov;

	if (n > ntop) {
		sh = (mh - ih) / 2;
		mh = mh - ih - sh;
		sy = my + mh + ih;
		mw = m->ww - 2*ov - iv * (ntop - 1);
		sw = m->ww - 2*ov - iv * (n - ntop - 1);
	}

	mfacts = ntop;
	sfacts = n - ntop;

	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
		if (i < ntop)
			mtotal += mh / mfacts;
		else
			stotal += sw / sfacts;

	mrest = mh - mtotal;
	srest = sw - stotal;

	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
		if (i < ntop) {
			resize(c, mx, my, mw / mfacts + (i < mrest ? 1 : 0) - (2*c->bw), mh - (2*c->bw), 0);
			mx += WIDTH(c) + iv;
		} else {
			resize(c, sx, sy, sw / sfacts + ((i - ntop) < srest ? 1 : 0) - (2*c->bw), sh - (2*c->bw), 0);
			sx += WIDTH(c) + iv;
		}
}