1/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
  2 * See LICENSE file for license details.
  3 */
  4#include "dwm.h"
  5
  6unsigned int master = MASTER;
  7unsigned int nmaster = NMASTER;
  8
  9/* static */
 10
 11static void
 12togglemax(Client *c) {
 13	XEvent ev;
 14
 15	if(c->isfixed)
 16		return;
 17	if((c->ismax = !c->ismax)) {
 18		c->rx = c->x;
 19		c->ry = c->y;
 20		c->rw = c->w;
 21		c->rh = c->h;
 22		resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
 23	}
 24	else
 25		resize(c, c->rx, c->ry, c->rw, c->rh, True);
 26	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 27}
 28
 29/* extern */
 30
 31void
 32dotile(void) {
 33	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
 34	Client *c;
 35
 36	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
 37		n++;
 38	/* window geoms */
 39	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
 40	mw = (n > nmaster) ? (waw * master) / 1000 : waw;
 41	th = (n > nmaster) ? wah / (n - nmaster) : 0;
 42	tw = waw - mw;
 43
 44	for(i = 0, c = clients; c; c = c->next)
 45		if(isvisible(c)) {
 46			if(c->isbanned)
 47				XMoveWindow(dpy, c->win, c->x, c->y);
 48			c->isbanned = False;
 49			if(c->isfloat)
 50				continue;
 51			c->ismax = False;
 52			nx = wax;
 53			ny = way;
 54			if(i < nmaster) {
 55				ny += i * mh;
 56				nw = mw - 2 * BORDERPX;
 57				nh = mh - 2 * BORDERPX;
 58			}
 59			else {  /* tile window */
 60				nx += mw;
 61				nw = tw - 2 * BORDERPX;
 62				if(th > 2 * BORDERPX) {
 63					ny += (i - nmaster) * th;
 64					nh = th - 2 * BORDERPX;
 65				}
 66				else /* fallback if th <= 2 * BORDERPX */
 67					nh = wah - 2 * BORDERPX;
 68			}
 69			resize(c, nx, ny, nw, nh, False);
 70			i++;
 71		}
 72		else {
 73			c->isbanned = True;
 74			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 75		}
 76	if(!sel || !isvisible(sel)) {
 77		for(c = stack; c && !isvisible(c); c = c->snext);
 78		focus(c);
 79	}
 80	restack();
 81}
 82
 83void
 84incnmaster(Arg *arg) {
 85	if((arrange == dofloat) || (nmaster + arg->i < 1)
 86	|| (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 87		return;
 88	nmaster += arg->i;
 89	if(sel)
 90		arrange();
 91	else
 92		drawstatus();
 93}
 94
 95void
 96resizemaster(Arg *arg) {
 97	if(arrange != dotile)
 98		return;
 99	if(arg->i == 0)
100		master = MASTER;
101	else {
102		if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
103		|| waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
104			return;
105		master += arg->i;
106	}
107	arrange();
108}
109
110void
111zoom(Arg *arg) {
112	unsigned int n;
113	Client *c;
114
115	if(!sel)
116		return;
117	if(sel->isfloat || (arrange == dofloat)) {
118		togglemax(sel);
119		return;
120	}
121	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
122		n++;
123
124	if((c = sel) == nextmanaged(clients))
125		if(!(c = nextmanaged(c->next)))
126			return;
127	detach(c);
128	attach(c);
129	focus(c);
130	arrange();
131}