1/* See LICENSE file for copyright and license details. */
  2double mfact = MFACT;
  3int bx, by, bw, bh, blw, mx, my, mw, mh, tx, ty, tw, th, wx, wy, ww, wh;
  4
  5void setmfact(const char *arg);
  6void tile(void);
  7void tilegeom(void);
  8void tileresize(Client *c, int x, int y, int w, int h);
  9
 10void
 11setmfact(const char *arg) {
 12	double d;
 13
 14	if(lt->arrange != tile)
 15		return;
 16	if(!arg)
 17		mfact = MFACT;
 18	else {
 19		d = strtod(arg, NULL);
 20		if(arg[0] == '-' || arg[0] == '+')
 21			d += mfact;
 22		if(d < 0.1 || d > 0.9)
 23			return;
 24		mfact = d;
 25	}
 26	updategeom();
 27	arrange();
 28}
 29
 30void
 31tile(void) {
 32	int y, h;
 33	unsigned int i, n;
 34	Client *c;
 35
 36	for(n = 0, c = nextunfloating(clients); c; c = nextunfloating(c->next), n++);
 37	if(n == 0)
 38		return;
 39
 40	/* master */
 41	c = nextunfloating(clients);
 42
 43	if(n == 1)
 44		tileresize(c, wx, wy, ww - 2 * c->bw, wh - 2 * c->bw);
 45	else
 46		tileresize(c, mx, my, mw - 2 * c->bw, mh - 2 * c->bw);
 47
 48	if(--n == 0)
 49		return;
 50
 51	/* tile stack */
 52	y = ty;
 53	h = th / n;
 54	if(h < bh)
 55		h = th;
 56
 57	for(i = 0, c = nextunfloating(c->next); c; c = nextunfloating(c->next), i++) {
 58		if(i + 1 == n) /* remainder */
 59			tileresize(c, tx, y, tw - 2 * c->bw, (ty + th) - y - 2 * c->bw);
 60		else
 61			tileresize(c, tx, y, tw - 2 * c->bw, h - 2 * c->bw);
 62		if(h != th)
 63			y = c->y + c->h + 2 * c->bw;
 64	}
 65}
 66
 67void
 68tilegeom(void) {
 69	/* master area geometry */
 70	mx = wx;
 71	my = wy;
 72	mw = mfact * ww;
 73	mh = wh;
 74
 75	/* tile area geometry */
 76	tx = mx + mw;
 77	ty = wy;
 78	tw = ww - mw;
 79	th = wh;
 80}
 81
 82void
 83tileresize(Client *c, int x, int y, int w, int h) {
 84	resize(c, x, y, w, h, RESIZEHINTS);
 85	if((RESIZEHINTS) && ((c->h < bh) || (c->h > h) || (c->w < bh) || (c->w > w)))
 86		/* client doesn't accept size constraints */
 87		resize(c, x, y, w, h, False);
 88}
 89
 90void
 91zoom(const char *arg) {
 92	Client *c = sel;
 93
 94	if(c == nextunfloating(clients))
 95		if(!c || !(c = nextunfloating(c->next)))
 96			return;
 97	if(lt->arrange == tile && !sel->isfloating) {
 98		detach(c);
 99		attach(c);
100		focus(c);
101	}
102	arrange();
103}