git.stevedylan.dev

merged tag.c, view.c and tile.c to manage.c 4cdbd523

Anselm R. Garbe · 2007-02-19 14:44 6 file(s) · +434 −458

Makefile +1 −1


include config.mk

SRC = client.c draw.c event.c main.c tile.c tag.c util.c view.c
SRC = client.c draw.c event.c main.c manage.c util.c
OBJ = ${SRC:.c=.o}

all: options dwm

dwm.h +15 −21

/* client.c */
extern void configure(Client *c);		/* send synthetic configure event */
extern void focus(Client *c);			/* focus c, c may be NULL */
extern Bool isprotodel(Client *c);		/* returns True if c->win supports wmatom[WMDelete] */
extern void killclient(Arg *arg);		/* kill c nicely */
extern void manage(Window w, XWindowAttributes *wa);	/* manage new client */
extern void resize(Client *c, int x, int y,

extern void sendevent(Window w, Atom a, long value);	/* send synthetic event to w */
extern int xerror(Display *dsply, XErrorEvent *ee);	/* dwm's X error handler */

/* tag.c */
extern void compileregexps(void);		/* initialize regexps of rules defined in config.h */
extern void settags(Client *c, Client *trans);	/* sets tags of c */
extern void tag(Arg *arg);			/* tags c with arg's index */
extern void toggletag(Arg *arg);		/* toggles c tags with arg's index */

/* tile.c */
extern void dotile(void);			/* arranges all windows tiled */
extern void incnmaster(Arg *arg);		/* increments nmaster with arg's index value */
extern void resizemaster(Arg *arg);		/* resizes the master percent with arg's index value */
extern void zoom(Arg *arg);			/* zooms the focused client to master area, arg is ignored */

/* util.c */
extern void *emallocz(unsigned int size);	/* allocates zero-initialized memory, exits on error */
extern void eprint(const char *errstr, ...);	/* prints errstr and exits with 1 */
extern void spawn(Arg *arg);			/* forks a new subprocess with to arg's cmd */

/* view.c */
/* manage.c */
extern void attach(Client *c);			/* attaches c to global client list */
extern void attachstack(Client *c);		/* attaches client to stack */
extern void dofloat(void);			/* arranges all windows floating */
extern void compileregexps(void);		/* initialize regexps of rules defined in config.h */
extern void detach(Client *c);			/* detaches c from global client list */
extern void detachstack(Client *c);		/* detaches client from stack */
extern void dofloat(void);			/* arranges all windows floating */
extern void dotile(void);			/* arranges all windows tiled */
extern void focusnext(Arg *arg);		/* focuses next visible client, arg is ignored  */
extern void focusprev(Arg *arg);		/* focuses previous visible client, arg is ignored */
extern Client *getclient(Window w);		/* return client of w */
extern void incnmaster(Arg *arg);		/* increments nmaster with arg's index value */
extern Bool isvisible(Client *c);		/* returns True if client is visible */
extern Client *nextmanaged(Client *c);		/* returns managed successor of c */
extern void resizemaster(Arg *arg);		/* resizes the master percent with arg's index value */
extern void restack(void);			/* restores z layers of all clients */
extern void settags(Client *c, Client *trans);	/* sets tags of c */
extern void tag(Arg *arg);			/* tags c with arg's index */
extern void togglefloat(Arg *arg);		/* toggles focusesd client between floating/non-floating state */
extern void togglemode(Arg *arg);		/* toggles global arrange function (dotile/dofloat) */
extern void toggletag(Arg *arg);		/* toggles c tags with arg's index */
extern void toggleview(Arg *arg);		/* toggles the tag with arg's index (in)visible */
extern void view(Arg *arg);			/* views the tag with arg's index */
extern void zoom(Arg *arg);			/* zooms the focused client to master area, arg is ignored */

/* util.c */
extern void *emallocz(unsigned int size);	/* allocates zero-initialized memory, exits on error */
extern void eprint(const char *errstr, ...);	/* prints errstr and exits with 1 */
extern void spawn(Arg *arg);			/* forks a new subprocess with to arg's cmd */

manage.c (added) +418 −0

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	+	#include <regex.h>
6	+	#include <stdio.h>
7	+	#include <stdlib.h>
8	+	#include <string.h>
9	+	#include <sys/types.h>
10	+	#include <X11/Xutil.h>
11	+
12	+	void (*arrange)(void) = DEFMODE;
13	+	unsigned int master = MASTER;
14	+	unsigned int nmaster = NMASTER;
15	+
16	+	/* static */
17	+
18	+	typedef struct {
19	+	const char *clpattern;
20	+	const char *tpattern;
21	+	Bool isfloat;
22	+	} Rule;
23	+
24	+	typedef struct {
25	+	regex_t *clregex;
26	+	regex_t *tregex;
27	+	} RReg;
28	+
29	+	TAGS
30	+	RULES
31	+
32	+	static RReg *rreg = NULL;
33	+	static unsigned int len = 0;
34	+
35	+	static Client *
36	+	nextmanaged(Client *c) {
37	+	for(; c && (c->isfloat \|\| !isvisible(c)); c = c->next);
38	+	return c;
39	+	}
40	+
41	+	static void
42	+	togglemax(Client *c) {
43	+	XEvent ev;
44	+
45	+	if(c->isfixed)
46	+	return;
47	+	if((c->ismax = !c->ismax)) {
48	+	c->rx = c->x;
49	+	c->ry = c->y;
50	+	c->rw = c->w;
51	+	c->rh = c->h;
52	+	resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
53	+	}
54	+	else
55	+	resize(c, c->rx, c->ry, c->rw, c->rh, True);
56	+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
57	+	}
58	+
59	+	/* extern */
60	+
61	+	void
62	+	attach(Client *c) {
63	+	if(clients)
64	+	clients->prev = c;
65	+	c->next = clients;
66	+	clients = c;
67	+	}
68	+
69	+	void
70	+	attachstack(Client *c) {
71	+	c->snext = stack;
72	+	stack = c;
73	+	}
74	+
75	+	void
76	+	compileregexps(void) {
77	+	unsigned int i;
78	+	regex_t *reg;
79	+
80	+	if(rreg)
81	+	return;
82	+	len = sizeof rule / sizeof rule[0];
83	+	rreg = emallocz(len * sizeof(RReg));
84	+	for(i = 0; i < len; i++) {
85	+	if(rule[i].clpattern) {
86	+	reg = emallocz(sizeof(regex_t));
87	+	if(regcomp(reg, rule[i].clpattern, REG_EXTENDED))
88	+	free(reg);
89	+	else
90	+	rreg[i].clregex = reg;
91	+	}
92	+	if(rule[i].tpattern) {
93	+	reg = emallocz(sizeof(regex_t));
94	+	if(regcomp(reg, rule[i].tpattern, REG_EXTENDED))
95	+	free(reg);
96	+	else
97	+	rreg[i].tregex = reg;
98	+	}
99	+	}
100	+	}
101	+
102	+	void
103	+	detach(Client *c) {
104	+	if(c->prev)
105	+	c->prev->next = c->next;
106	+	if(c->next)
107	+	c->next->prev = c->prev;
108	+	if(c == clients)
109	+	clients = c->next;
110	+	c->next = c->prev = NULL;
111	+	}
112	+
113	+	void
114	+	detachstack(Client *c) {
115	+	Client **tc;
116	+	for(tc=&stack; tc && tc != c; tc=&(*tc)->snext);
117	+	*tc = c->snext;
118	+	}
119	+
120	+	void
121	+	dofloat(void) {
122	+	Client *c;
123	+
124	+	for(c = clients; c; c = c->next) {
125	+	if(isvisible(c)) {
126	+	if(c->isbanned)
127	+	XMoveWindow(dpy, c->win, c->x, c->y);
128	+	c->isbanned = False;
129	+	resize(c, c->x, c->y, c->w, c->h, True);
130	+	}
131	+	else {
132	+	c->isbanned = True;
133	+	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
134	+	}
135	+	}
136	+	if(!sel \|\| !isvisible(sel)) {
137	+	for(c = stack; c && !isvisible(c); c = c->snext);
138	+	focus(c);
139	+	}
140	+	restack();
141	+	}
142	+	void
143	+	dotile(void) {
144	+	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
145	+	Client *c;
146	+
147	+	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
148	+	n++;
149	+	/* window geoms */
150	+	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
151	+	mw = (n > nmaster) ? (waw * master) / 1000 : waw;
152	+	th = (n > nmaster) ? wah / (n - nmaster) : 0;
153	+	tw = waw - mw;
154	+
155	+	for(i = 0, c = clients; c; c = c->next)
156	+	if(isvisible(c)) {
157	+	if(c->isbanned)
158	+	XMoveWindow(dpy, c->win, c->x, c->y);
159	+	c->isbanned = False;
160	+	if(c->isfloat)
161	+	continue;
162	+	c->ismax = False;
163	+	nx = wax;
164	+	ny = way;
165	+	if(i < nmaster) {
166	+	ny += i * mh;
167	+	nw = mw - 2 * BORDERPX;
168	+	nh = mh - 2 * BORDERPX;
169	+	}
170	+	else { /* tile window */
171	+	nx += mw;
172	+	nw = tw - 2 * BORDERPX;
173	+	if(th > 2 * BORDERPX) {
174	+	ny += (i - nmaster) * th;
175	+	nh = th - 2 * BORDERPX;
176	+	}
177	+	else /* fallback if th <= 2 * BORDERPX */
178	+	nh = wah - 2 * BORDERPX;
179	+	}
180	+	resize(c, nx, ny, nw, nh, False);
181	+	i++;
182	+	}
183	+	else {
184	+	c->isbanned = True;
185	+	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
186	+	}
187	+	if(!sel \|\| !isvisible(sel)) {
188	+	for(c = stack; c && !isvisible(c); c = c->snext);
189	+	focus(c);
190	+	}
191	+	restack();
192	+	}
193	+
194	+	void
195	+	focusnext(Arg *arg) {
196	+	Client *c;
197	+
198	+	if(!sel)
199	+	return;
200	+	for(c = sel->next; c && !isvisible(c); c = c->next);
201	+	if(!c)
202	+	for(c = clients; c && !isvisible(c); c = c->next);
203	+	if(c) {
204	+	focus(c);
205	+	restack();
206	+	}
207	+	}
208	+
209	+	void
210	+	focusprev(Arg *arg) {
211	+	Client *c;
212	+
213	+	if(!sel)
214	+	return;
215	+	for(c = sel->prev; c && !isvisible(c); c = c->prev);
216	+	if(!c) {
217	+	for(c = clients; c && c->next; c = c->next);
218	+	for(; c && !isvisible(c); c = c->prev);
219	+	}
220	+	if(c) {
221	+	focus(c);
222	+	restack();
223	+	}
224	+	}
225	+
226	+	Client *
227	+	getclient(Window w) {
228	+	Client *c;
229	+
230	+	for(c = clients; c; c = c->next)
231	+	if(c->win == w)
232	+	return c;
233	+	return NULL;
234	+	}
235	+
236	+	void
237	+	incnmaster(Arg *arg) {
238	+	if((arrange == dofloat) \|\| (nmaster + arg->i < 1)
239	+	\|\| (wah / (nmaster + arg->i) <= 2 * BORDERPX))
240	+	return;
241	+	nmaster += arg->i;
242	+	if(sel)
243	+	arrange();
244	+	else
245	+	drawstatus();
246	+	}
247	+
248	+	Bool
249	+	isvisible(Client *c) {
250	+	unsigned int i;
251	+
252	+	for(i = 0; i < ntags; i++)
253	+	if(c->tags[i] && seltag[i])
254	+	return True;
255	+	return False;
256	+	}
257	+
258	+	void
259	+	resizemaster(Arg *arg) {
260	+	if(arrange != dotile)
261	+	return;
262	+	if(arg->i == 0)
263	+	master = MASTER;
264	+	else {
265	+	if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
266	+	\|\| waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
267	+	return;
268	+	master += arg->i;
269	+	}
270	+	arrange();
271	+	}
272	+
273	+	void
274	+	restack(void) {
275	+	Client *c;
276	+	XEvent ev;
277	+
278	+	drawstatus();
279	+	if(!sel)
280	+	return;
281	+	if(sel->isfloat \|\| arrange == dofloat)
282	+	XRaiseWindow(dpy, sel->win);
283	+	if(arrange != dofloat) {
284	+	if(!sel->isfloat)
285	+	XLowerWindow(dpy, sel->win);
286	+	for(c = nextmanaged(clients); c; c = nextmanaged(c->next)) {
287	+	if(c == sel)
288	+	continue;
289	+	XLowerWindow(dpy, c->win);
290	+	}
291	+	}
292	+	XSync(dpy, False);
293	+	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
294	+	}
295	+
296	+	void
297	+	settags(Client c, Client trans) {
298	+	char prop[512];
299	+	unsigned int i, j;
300	+	regmatch_t tmp;
301	+	Bool matched = trans != NULL;
302	+	XClassHint ch = { 0 };
303	+
304	+	if(matched)
305	+	for(i = 0; i < ntags; i++)
306	+	c->tags[i] = trans->tags[i];
307	+	else {
308	+	XGetClassHint(dpy, c->win, &ch);
309	+	snprintf(prop, sizeof prop, "%s:%s:%s",
310	+	ch.res_class ? ch.res_class : "",
311	+	ch.res_name ? ch.res_name : "", c->name);
312	+	for(i = 0; i < len; i++)
313	+	if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
314	+	c->isfloat = rule[i].isfloat;
315	+	for(j = 0; rreg[i].tregex && j < ntags; j++) {
316	+	if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
317	+	matched = True;
318	+	c->tags[j] = True;
319	+	}
320	+	}
321	+	}
322	+	if(ch.res_class)
323	+	XFree(ch.res_class);
324	+	if(ch.res_name)
325	+	XFree(ch.res_name);
326	+	}
327	+	if(!matched)
328	+	for(i = 0; i < ntags; i++)
329	+	c->tags[i] = seltag[i];
330	+	}
331	+
332	+	void
333	+	tag(Arg *arg) {
334	+	unsigned int i;
335	+
336	+	if(!sel)
337	+	return;
338	+	for(i = 0; i < ntags; i++)
339	+	sel->tags[i] = (arg->i == -1) ? True : False;
340	+	if(arg->i >= 0 && arg->i < ntags)
341	+	sel->tags[arg->i] = True;
342	+	arrange();
343	+	}
344	+
345	+	void
346	+	togglefloat(Arg *arg) {
347	+	if(!sel \|\| arrange == dofloat)
348	+	return;
349	+	sel->isfloat = !sel->isfloat;
350	+	arrange();
351	+	}
352	+
353	+	void
354	+	toggletag(Arg *arg) {
355	+	unsigned int i;
356	+
357	+	if(!sel)
358	+	return;
359	+	sel->tags[arg->i] = !sel->tags[arg->i];
360	+	for(i = 0; i < ntags && !sel->tags[i]; i++);
361	+	if(i == ntags)
362	+	sel->tags[arg->i] = True;
363	+	arrange();
364	+	}
365	+
366	+	void
367	+	togglemode(Arg *arg) {
368	+	arrange = (arrange == dofloat) ? dotile : dofloat;
369	+	if(sel)
370	+	arrange();
371	+	else
372	+	drawstatus();
373	+	}
374	+
375	+	void
376	+	toggleview(Arg *arg) {
377	+	unsigned int i;
378	+
379	+	seltag[arg->i] = !seltag[arg->i];
380	+	for(i = 0; i < ntags && !seltag[i]; i++);
381	+	if(i == ntags)
382	+	seltag[arg->i] = True; /* cannot toggle last view */
383	+	arrange();
384	+	}
385	+
386	+	void
387	+	view(Arg *arg) {
388	+	unsigned int i;
389	+
390	+	for(i = 0; i < ntags; i++)
391	+	seltag[i] = (arg->i == -1) ? True : False;
392	+	if(arg->i >= 0 && arg->i < ntags)
393	+	seltag[arg->i] = True;
394	+	arrange();
395	+	}
396	+
397	+	void
398	+	zoom(Arg *arg) {
399	+	unsigned int n;
400	+	Client *c;
401	+
402	+	if(!sel)
403	+	return;
404	+	if(sel->isfloat \|\| (arrange == dofloat)) {
405	+	togglemax(sel);
406	+	return;
407	+	}
408	+	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
409	+	n++;
410	+
411	+	if((c = sel) == nextmanaged(clients))
412	+	if(!(c = nextmanaged(c->next)))
413	+	return;
414	+	detach(c);
415	+	attach(c);
416	+	focus(c);
417	+	arrange();
418	+	}

tag.c (deleted) +0 −121

/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */
#include "dwm.h"
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <X11/Xutil.h>


typedef struct {
	const char *clpattern;
	const char *tpattern;
	Bool isfloat;
} Rule;

typedef struct {
	regex_t *clregex;
	regex_t *tregex;
} RReg;

/* static */

TAGS
RULES

static RReg *rreg = NULL;
static unsigned int len = 0;

/* extern */

void
compileregexps(void) {
	unsigned int i;
	regex_t *reg;

	if(rreg)
		return;
	len = sizeof rule / sizeof rule[0];
	rreg = emallocz(len * sizeof(RReg));
	for(i = 0; i < len; i++) {
		if(rule[i].clpattern) {
			reg = emallocz(sizeof(regex_t));
			if(regcomp(reg, rule[i].clpattern, REG_EXTENDED))
				free(reg);
			else
				rreg[i].clregex = reg;
		}
		if(rule[i].tpattern) {
			reg = emallocz(sizeof(regex_t));
			if(regcomp(reg, rule[i].tpattern, REG_EXTENDED))
				free(reg);
			else
				rreg[i].tregex = reg;
		}
	}
}

void
settags(Client *c, Client *trans) {
	char prop[512];
	unsigned int i, j;
	regmatch_t tmp;
	Bool matched = trans != NULL;
	XClassHint ch = { 0 };

	if(matched)
		for(i = 0; i < ntags; i++)
			c->tags[i] = trans->tags[i];
	else {
		XGetClassHint(dpy, c->win, &ch);
		snprintf(prop, sizeof prop, "%s:%s:%s",
				ch.res_class ? ch.res_class : "",
				ch.res_name ? ch.res_name : "", c->name);
		for(i = 0; i < len; i++)
			if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
				c->isfloat = rule[i].isfloat;
				for(j = 0; rreg[i].tregex && j < ntags; j++) {
					if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
						matched = True;
						c->tags[j] = True;
					}
				}
			}
		if(ch.res_class)
			XFree(ch.res_class);
		if(ch.res_name)
			XFree(ch.res_name);
	}
	if(!matched)
		for(i = 0; i < ntags; i++)
			c->tags[i] = seltag[i];
}

void
tag(Arg *arg) {
	unsigned int i;

	if(!sel)
		return;
	for(i = 0; i < ntags; i++)
		sel->tags[i] = (arg->i == -1) ? True : False;
	if(arg->i >= 0 && arg->i < ntags)
		sel->tags[arg->i] = True;
	arrange();
}

void
toggletag(Arg *arg) {
	unsigned int i;

	if(!sel)
		return;
	sel->tags[arg->i] = !sel->tags[arg->i];
	for(i = 0; i < ntags && !sel->tags[i]; i++);
	if(i == ntags)
		sel->tags[arg->i] = True;
	arrange();
}

tile.c (deleted) +0 −131

/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */
#include "dwm.h"

unsigned int master = MASTER;
unsigned int nmaster = NMASTER;

/* static */

static void
togglemax(Client *c) {
	XEvent ev;

	if(c->isfixed)
		return;
	if((c->ismax = !c->ismax)) {
		c->rx = c->x;
		c->ry = c->y;
		c->rw = c->w;
		c->rh = c->h;
		resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
	}
	else
		resize(c, c->rx, c->ry, c->rw, c->rh, True);
	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}

/* extern */

void
dotile(void) {
	unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
	Client *c;

	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
		n++;
	/* window geoms */
	mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
	mw = (n > nmaster) ? (waw * master) / 1000 : waw;
	th = (n > nmaster) ? wah / (n - nmaster) : 0;
	tw = waw - mw;

	for(i = 0, c = clients; c; c = c->next)
		if(isvisible(c)) {
			if(c->isbanned)
				XMoveWindow(dpy, c->win, c->x, c->y);
			c->isbanned = False;
			if(c->isfloat)
				continue;
			c->ismax = False;
			nx = wax;
			ny = way;
			if(i < nmaster) {
				ny += i * mh;
				nw = mw - 2 * BORDERPX;
				nh = mh - 2 * BORDERPX;
			}
			else {  /* tile window */
				nx += mw;
				nw = tw - 2 * BORDERPX;
				if(th > 2 * BORDERPX) {
					ny += (i - nmaster) * th;
					nh = th - 2 * BORDERPX;
				}
				else /* fallback if th <= 2 * BORDERPX */
					nh = wah - 2 * BORDERPX;
			}
			resize(c, nx, ny, nw, nh, False);
			i++;
		}
		else {
			c->isbanned = True;
			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
		}
	if(!sel || !isvisible(sel)) {
		for(c = stack; c && !isvisible(c); c = c->snext);
		focus(c);
	}
	restack();
}

void
incnmaster(Arg *arg) {
	if((arrange == dofloat) || (nmaster + arg->i < 1)
	|| (wah / (nmaster + arg->i) <= 2 * BORDERPX))
		return;
	nmaster += arg->i;
	if(sel)
		arrange();
	else
		drawstatus();
}

void
resizemaster(Arg *arg) {
	if(arrange != dotile)
		return;
	if(arg->i == 0)
		master = MASTER;
	else {
		if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
		|| waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
			return;
		master += arg->i;
	}
	arrange();
}

void
zoom(Arg *arg) {
	unsigned int n;
	Client *c;

	if(!sel)
		return;
	if(sel->isfloat || (arrange == dofloat)) {
		togglemax(sel);
		return;
	}
	for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
		n++;

	if((c = sel) == nextmanaged(clients))
		if(!(c = nextmanaged(c->next)))
			return;
	detach(c);
	attach(c);
	focus(c);
	arrange();
}

view.c (deleted) +0 −184

/* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */
#include "dwm.h"

/* extern */

void (*arrange)(void) = DEFMODE;

void
attach(Client *c) {
	if(clients)
		clients->prev = c;
	c->next = clients;
	clients = c;
}

void
attachstack(Client *c) {
	c->snext = stack;
	stack = c;
}

void
dofloat(void) {
	Client *c;

	for(c = clients; c; c = c->next) {
		if(isvisible(c)) {
			if(c->isbanned)
				XMoveWindow(dpy, c->win, c->x, c->y);
			c->isbanned = False;
			resize(c, c->x, c->y, c->w, c->h, True);
		}
		else {
			c->isbanned = True;
			XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
		}
	}
	if(!sel || !isvisible(sel)) {
		for(c = stack; c && !isvisible(c); c = c->snext);
		focus(c);
	}
	restack();
}

void
detach(Client *c) {
	if(c->prev)
		c->prev->next = c->next;
	if(c->next)
		c->next->prev = c->prev;
	if(c == clients)
		clients = c->next;
	c->next = c->prev = NULL;
}

void
detachstack(Client *c) {
	Client **tc;
	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
	*tc = c->snext;
}

void
focusnext(Arg *arg) {
	Client *c;
   
	if(!sel)
		return;
	for(c = sel->next; c && !isvisible(c); c = c->next);
	if(!c)
		for(c = clients; c && !isvisible(c); c = c->next);
	if(c) {
		focus(c);
		restack();
	}
}

void
focusprev(Arg *arg) {
	Client *c;

	if(!sel)
		return;
	for(c = sel->prev; c && !isvisible(c); c = c->prev);
	if(!c) {
		for(c = clients; c && c->next; c = c->next);
		for(; c && !isvisible(c); c = c->prev);
	}
	if(c) {
		focus(c);
		restack();
	}
}

Client *
getclient(Window w) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->win == w)
			return c;
	return NULL;
}

Bool
isvisible(Client *c) {
	unsigned int i;

	for(i = 0; i < ntags; i++)
		if(c->tags[i] && seltag[i])
			return True;
	return False;
}

Client *
nextmanaged(Client *c) {
	for(; c && (c->isfloat || !isvisible(c)); c = c->next);
	return c;
}

void
restack(void) {
	Client *c;
	XEvent ev;

	drawstatus();
	if(!sel)
		return;
	if(sel->isfloat || arrange == dofloat)
		XRaiseWindow(dpy, sel->win);
	if(arrange != dofloat) {
		if(!sel->isfloat)
			XLowerWindow(dpy, sel->win);
		for(c = nextmanaged(clients); c; c = nextmanaged(c->next)) {
			if(c == sel)
				continue;
			XLowerWindow(dpy, c->win);
		}
	}
	XSync(dpy, False);
	while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}

void
togglefloat(Arg *arg) {
	if(!sel || arrange == dofloat)
		return;
	sel->isfloat = !sel->isfloat;
	arrange();
}

void
togglemode(Arg *arg) {
	arrange = (arrange == dofloat) ? dotile : dofloat;
	if(sel)
		arrange();
	else
		drawstatus();
}

void
toggleview(Arg *arg) {
	unsigned int i;

	seltag[arg->i] = !seltag[arg->i];
	for(i = 0; i < ntags && !seltag[i]; i++);
	if(i == ntags)
		seltag[arg->i] = True; /* cannot toggle last view */
	arrange();
}

void
view(Arg *arg) {
	unsigned int i;

	for(i = 0; i < ntags; i++)
		seltag[i] = (arg->i == -1) ? True : False;
	if(arg->i >= 0 && arg->i < ntags)
		seltag[arg->i] = True;
	arrange();
}


3	3
4	4		include config.mk
5	5
6		-	SRC = client.c draw.c event.c main.c tile.c tag.c util.c view.c
	6	+	SRC = client.c draw.c event.c main.c manage.c util.c
7	7		OBJ = ${SRC:.c=.o}
8	8
9	9		all: options dwm

101	101		/* client.c */
102	102		extern void configure(Client c); / send synthetic configure event */
103	103		extern void focus(Client c); / focus c, c may be NULL */
104		-	extern Bool isprotodel(Client c); / returns True if c->win supports wmatom[WMDelete] */
105	104		extern void killclient(Arg arg); / kill c nicely */
106	105		extern void manage(Window w, XWindowAttributes wa); / manage new client */
107	106		extern void resize(Client *c, int x, int y,

125	124		extern void sendevent(Window w, Atom a, long value); /* send synthetic event to w */
126	125		extern int xerror(Display dsply, XErrorEvent ee); /* dwm's X error handler */
127	126
128		-	/* tag.c */
129		-	extern void compileregexps(void); /* initialize regexps of rules defined in config.h */
130		-	extern void settags(Client c, Client trans); /* sets tags of c */
131		-	extern void tag(Arg arg); / tags c with arg's index */
132		-	extern void toggletag(Arg arg); / toggles c tags with arg's index */
133		-
134		-	/* tile.c */
135		-	extern void dotile(void); /* arranges all windows tiled */
136		-	extern void incnmaster(Arg arg); / increments nmaster with arg's index value */
137		-	extern void resizemaster(Arg arg); / resizes the master percent with arg's index value */
138		-	extern void zoom(Arg arg); / zooms the focused client to master area, arg is ignored */
139		-
140		-	/* util.c */
141		-	extern void emallocz(unsigned int size); / allocates zero-initialized memory, exits on error */
142		-	extern void eprint(const char errstr, ...); / prints errstr and exits with 1 */
143		-	extern void spawn(Arg arg); / forks a new subprocess with to arg's cmd */
144		-
145		-	/* view.c */
	127	+	/* manage.c */
146	128		extern void attach(Client c); / attaches c to global client list */
147	129		extern void attachstack(Client c); / attaches client to stack */
148		-	extern void dofloat(void); /* arranges all windows floating */
	130	+	extern void compileregexps(void); /* initialize regexps of rules defined in config.h */
149	131		extern void detach(Client c); / detaches c from global client list */
150	132		extern void detachstack(Client c); / detaches client from stack */
	133	+	extern void dofloat(void); /* arranges all windows floating */
	134	+	extern void dotile(void); /* arranges all windows tiled */
151	135		extern void focusnext(Arg arg); / focuses next visible client, arg is ignored */
152	136		extern void focusprev(Arg arg); / focuses previous visible client, arg is ignored */
153	137		extern Client getclient(Window w); / return client of w */
	138	+	extern void incnmaster(Arg arg); / increments nmaster with arg's index value */
154	139		extern Bool isvisible(Client c); / returns True if client is visible */
155		-	extern Client nextmanaged(Client c); /* returns managed successor of c */
	140	+	extern void resizemaster(Arg arg); / resizes the master percent with arg's index value */
156	141		extern void restack(void); /* restores z layers of all clients */
	142	+	extern void settags(Client c, Client trans); /* sets tags of c */
	143	+	extern void tag(Arg arg); / tags c with arg's index */
157	144		extern void togglefloat(Arg arg); / toggles focusesd client between floating/non-floating state */
158	145		extern void togglemode(Arg arg); / toggles global arrange function (dotile/dofloat) */
	146	+	extern void toggletag(Arg arg); / toggles c tags with arg's index */
159	147		extern void toggleview(Arg arg); / toggles the tag with arg's index (in)visible */
160	148		extern void view(Arg arg); / views the tag with arg's index */
	149	+	extern void zoom(Arg arg); / zooms the focused client to master area, arg is ignored */
	150	+
	151	+	/* util.c */
	152	+	extern void emallocz(unsigned int size); / allocates zero-initialized memory, exits on error */
	153	+	extern void eprint(const char errstr, ...); / prints errstr and exits with 1 */
	154	+	extern void spawn(Arg arg); / forks a new subprocess with to arg's cmd */