1/* © 2004-2007 Anselm R. Garbe <garbeam at gmail dot com>
  2 * See LICENSE file for license details. */
  3#include "dwm.h"
  4#include <stdlib.h>
  5
  6unsigned int blw = 0;
  7Layout *lt = NULL;
  8
  9/* static */
 10
 11static unsigned int nlayouts = 0;
 12static unsigned int masterw = MASTERWIDTH;
 13static unsigned int nmaster = NMASTER;
 14
 15static void
 16tile(void) {
 17	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
 18	Client *c;
 19
 20	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 21		n++;
 22	/* window geoms */
 23	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
 24	mw = (n > nmaster) ? (waw * masterw) / 1000 : waw;
 25	th = (n > nmaster) ? wah / (n - nmaster) : 0;
 26	tw = waw - mw;
 27
 28	for(i = 0, c = clients; c; c = c->next)
 29		if(isvisible(c)) {
 30			if(c->isbanned)
 31				XMoveWindow(dpy, c->win, c->x, c->y);
 32			c->isbanned = False;
 33			if(c->isfloating)
 34				continue;
 35			c->ismax = False;
 36			nx = wax;
 37			ny = way;
 38			if(i < nmaster) {
 39				ny += i * mh;
 40				nw = mw - 2 * BORDERPX;
 41				nh = mh - 2 * BORDERPX;
 42			}
 43			else {  /* tile window */
 44				nx += mw;
 45				nw = tw - 2 * BORDERPX;
 46				if(th > 2 * BORDERPX) {
 47					ny += (i - nmaster) * th;
 48					nh = th - 2 * BORDERPX;
 49				}
 50				else /* fallback if th <= 2 * BORDERPX */
 51					nh = wah - 2 * BORDERPX;
 52			}
 53			resize(c, nx, ny, nw, nh, False);
 54			i++;
 55		}
 56		else {
 57			c->isbanned = True;
 58			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 59		}
 60	if(!sel || !isvisible(sel)) {
 61		for(c = stack; c && !isvisible(c); c = c->snext);
 62		focus(c);
 63	}
 64	restack();
 65}
 66
 67LAYOUTS
 68
 69/* extern */
 70
 71void
 72floating(void) {
 73	Client *c;
 74
 75	for(c = clients; c; c = c->next) {
 76		if(isvisible(c)) {
 77			if(c->isbanned)
 78				XMoveWindow(dpy, c->win, c->x, c->y);
 79			c->isbanned = False;
 80			resize(c, c->x, c->y, c->w, c->h, True);
 81		}
 82		else {
 83			c->isbanned = True;
 84			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 85		}
 86	}
 87	if(!sel || !isvisible(sel)) {
 88		for(c = stack; c && !isvisible(c); c = c->snext);
 89		focus(c);
 90	}
 91	restack();
 92}
 93
 94void
 95focusclient(const char *arg) {
 96	Client *c;
 97   
 98	if(!sel || !arg)
 99		return;
100	if(atoi(arg) < 0) {
101		for(c = sel->prev; c && !isvisible(c); c = c->prev);
102		if(!c) {
103			for(c = clients; c && c->next; c = c->next);
104			for(; c && !isvisible(c); c = c->prev);
105		}
106	}
107	else {
108		for(c = sel->next; c && !isvisible(c); c = c->next);
109		if(!c)
110			for(c = clients; c && !isvisible(c); c = c->next);
111	}
112	if(c) {
113		focus(c);
114		restack();
115	}
116}
117
118void
119incmasterw(const char *arg) {
120	int i;
121	if(lt->arrange != tile)
122		return;
123	if(!arg)
124		masterw = MASTERWIDTH;
125	else {
126		i = atoi(arg);
127		if(waw * (masterw + i) / 1000 >= waw - 2 * BORDERPX
128		|| waw * (masterw + i) / 1000 <= 2 * BORDERPX)
129			return;
130		masterw += i;
131	}
132	lt->arrange();
133}
134
135void
136incnmaster(const char *arg) {
137	int i;
138
139	if(!arg)
140		nmaster = NMASTER;
141	else {
142		i = atoi(arg);
143		if((lt->arrange != tile) || (nmaster + i < 1)
144		|| (wah / (nmaster + i) <= 2 * BORDERPX))
145			return;
146		nmaster += i;
147	}
148	if(sel)
149		lt->arrange();
150	else
151		drawstatus();
152}
153
154void
155initlayouts(void) {
156	unsigned int i, w;
157
158	lt = &layout[0];
159	nlayouts = sizeof layout / sizeof layout[0];
160	for(blw = i = 0; i < nlayouts; i++) {
161		w = textw(layout[i].symbol);
162		if(w > blw)
163			blw = w;
164	}
165}
166
167Client *
168nexttiled(Client *c) {
169	for(; c && (c->isfloating || !isvisible(c)); c = c->next);
170	return c;
171}
172
173void
174restack(void) {
175	Client *c;
176	XEvent ev;
177
178	drawstatus();
179	if(!sel)
180		return;
181	if(sel->isfloating || lt->arrange == floating)
182		XRaiseWindow(dpy, sel->win);
183	if(lt->arrange != floating) {
184		if(!sel->isfloating)
185			XLowerWindow(dpy, sel->win);
186		for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
187			if(c == sel)
188				continue;
189			XLowerWindow(dpy, c->win);
190		}
191	}
192	XSync(dpy, False);
193	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
194}
195
196void
197setlayout(const char *arg) {
198	int i;
199
200	if(!arg) {
201		for(i = 0; i < nlayouts && lt != &layout[i]; i++);
202		if(i == nlayouts - 1)
203			lt = &layout[0];
204		else
205			lt = &layout[++i];
206	}
207	else {
208		i = atoi(arg);
209		if(i < 0 || i >= nlayouts)
210			return;
211		lt = &layout[i];
212	}
213	if(sel)
214		lt->arrange();
215	else
216		drawstatus();
217}
218
219void
220togglemax(const char *arg) {
221	XEvent ev;
222
223	if(!sel || (lt->arrange != floating && !sel->isfloating) || sel->isfixed)
224		return;
225	if((sel->ismax = !sel->ismax)) {
226		sel->rx = sel->x;
227		sel->ry = sel->y;
228		sel->rw = sel->w;
229		sel->rh = sel->h;
230		resize(sel, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
231	}
232	else
233		resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
234	drawstatus();
235	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
236}
237
238void
239zoom(const char *arg) {
240	unsigned int n;
241	Client *c;
242
243	if(!sel || lt->arrange != tile || sel->isfloating)
244		return;
245	for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
246		n++;
247	if((c = sel) == nexttiled(clients))
248		if(!(c = nexttiled(c->next)))
249			return;
250	detach(c);
251	attach(c);
252	focus(c);
253	lt->arrange();
254}