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
  6/* static */
  7
  8static void
  9togglemax(Client *c) {
 10	XEvent ev;
 11		
 12	if(c->isfixed)
 13		return;
 14
 15	if((c->ismax = !c->ismax)) {
 16		c->rx = c->x;
 17		c->ry = c->y;
 18		c->rw = c->w;
 19		c->rh = c->h;
 20		resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
 21	}
 22	else
 23		resize(c, c->rx, c->ry, c->rw, c->rh, True);
 24	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 25}
 26
 27/* extern */
 28
 29void
 30dotile(void) {
 31	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
 32	Client *c;
 33
 34	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
 35		n++;
 36	/* window geoms */
 37	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
 38	mw = (n > nmaster) ? (waw * master) / 1000 : waw;
 39	th = (n > nmaster) ? wah / (n - nmaster) : 0;
 40	tw = waw - mw;
 41
 42	for(i = 0, c = clients; c; c = c->next)
 43		if(isvisible(c)) {
 44			if(c->isbanned)
 45				XMoveWindow(dpy, c->win, c->x, c->y);
 46			c->isbanned = False;
 47			if(c->isfloat)
 48				continue;
 49			c->ismax = False;
 50			nx = wax;
 51			ny = way;
 52			if(i < nmaster) {
 53				ny += i * mh;
 54				nw = mw - 2 * BORDERPX;
 55				nh = mh - 2 * BORDERPX;
 56			}
 57			else {  /* tile window */
 58				nx += mw;
 59				nw = tw - 2 * BORDERPX;
 60				if(th > 2 * BORDERPX) {
 61					ny += (i - nmaster) * th;
 62					nh = th - 2 * BORDERPX;
 63				}
 64				else /* fallback if th <= 2 * BORDERPX */
 65					nh = wah - 2 * BORDERPX;
 66			}
 67			resize(c, nx, ny, nw, nh, False);
 68			i++;
 69		}
 70		else {
 71			c->isbanned = True;
 72			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 73		}
 74	if(!sel || !isvisible(sel)) {
 75		for(c = stack; c && !isvisible(c); c = c->snext);
 76		focus(c);
 77	}
 78	restack();
 79}
 80
 81void
 82incnmaster(Arg *arg) {
 83	if((arrange == dofloat) || (nmaster + arg->i < 1)
 84	|| (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 85		return;
 86	nmaster += arg->i;
 87	if(sel)
 88		arrange();
 89	else
 90		drawstatus();
 91}
 92
 93void
 94resizemaster(Arg *arg) {
 95	if(arrange != dotile)
 96		return;
 97	if(arg->i == 0)
 98		master = MASTER;
 99	else {
100		if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
101		|| waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
102			return;
103		master += arg->i;
104	}
105	arrange();
106}
107
108void
109zoom(Arg *arg) {
110	unsigned int n;
111	Client *c;
112
113	if(!sel)
114		return;
115	if(sel->isfloat || (arrange == dofloat)) {
116		togglemax(sel);
117		return;
118	}
119	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
120		n++;
121
122	if((c = sel) == nextmanaged(clients))
123		if(!(c = nextmanaged(c->next)))
124			return;
125	detach(c);
126	if(clients)
127		clients->prev = c;
128	c->next = clients;
129	clients = c;
130	focus(c);
131	arrange();
132}