dwm/layouts.c

void
tile(Monitor *m)
{
	unsigned int i, n, h, mw, my, ty;
	Client *c;

	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
	if (n == 0)
		return;

	if (n > m->nmaster)
		mw = m->nmaster ? m->ww * m->mfact : 0;
	else
		mw = m->ww - m->gappx;
	for (i = 0, my = ty = m->gappx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
			if (i < m->nmaster) {
			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappx;
			resize(c, m->wx + m->gappx, m->wy + my, mw - (2*c->bw) - m->gappx, h - (2*c->bw), 0);
			if (my + HEIGHT(c) + m->gappx < m->wh)
				my += HEIGHT(c) + m->gappx;
 		} else {
			h = (m->wh - ty) / (n - i) - m->gappx;
			resize(c, m->wx + mw + m->gappx, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gappx, h - (2*c->bw), 0);
			if (ty + HEIGHT(c) + m->gappx < m->wh)
				ty += HEIGHT(c) + m->gappx;
		}
}

void
monocle(Monitor *m)
{
	unsigned int n = 0;
	Client *c;

	for (c = m->clients; c; c = c->next)
		if (ISVISIBLE(c))
			n++;
	if (n > 0) /* override layout symbol */
		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
	for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
		resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
}

// TODO: Add gaps
void
gaplessgrid(Monitor *m) {
	unsigned int n, cols, rows, cn, rn, i, cx, cy, cw, ch;
	Client *c;

	for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) ;
	if(n == 0)
		return;

	/* grid dimensions */
	for(cols = 0; cols <= n/2; cols++)
		if(cols*cols >= n)
			break;
	if(n == 5) /* set layout against the general calculation: not 1:2:2, but 2:3 */
		cols = 2;
	rows = n/cols;

	/* window geometries */
	cw = cols ? m->ww / cols : m->ww;
	cn = 0; /* current column number */
	rn = 0; /* current row number */
	for(i = 0, c = nexttiled(m->clients); c; i++, c = nexttiled(c->next)) {
		if(i/rows + 1 > cols - n%cols)
			rows = n/cols + 1;
		ch = rows ? m->wh / rows : m->wh;
		cx = m->wx + cn*cw;
		cy = m->wy + rn*ch;
		resize(c, cx, cy, cw - 2 * c->bw, ch - 2 * c->bw, False);
		rn++;
		if(rn >= rows) {
			rn = 0;
			cn++;
		}
	}
}