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renamed manage.c to view.c
[dwm.git] / view.c
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 *prop;
20         const char *tags;
21         Bool isfloat;
22 } Rule;
23
24 typedef struct {
25         regex_t *propregex;
26         regex_t *tagregex;
27 } Regexps;
28
29 TAGS
30 RULES
31
32 static Regexps *regexps = 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 compileregexps(void) {
63         unsigned int i;
64         regex_t *reg;
65
66         if(regexps)
67                 return;
68         len = sizeof rule / sizeof rule[0];
69         regexps = emallocz(len * sizeof(Regexps));
70         for(i = 0; i < len; i++) {
71                 if(rule[i].prop) {
72                         reg = emallocz(sizeof(regex_t));
73                         if(regcomp(reg, rule[i].prop, REG_EXTENDED))
74                                 free(reg);
75                         else
76                                 regexps[i].propregex = reg;
77                 }
78                 if(rule[i].tags) {
79                         reg = emallocz(sizeof(regex_t));
80                         if(regcomp(reg, rule[i].tags, REG_EXTENDED))
81                                 free(reg);
82                         else
83                                 regexps[i].tagregex = reg;
84                 }
85         }
86 }
87
88 void
89 dofloat(void) {
90         Client *c;
91
92         for(c = clients; c; c = c->next) {
93                 if(isvisible(c)) {
94                         if(c->isbanned)
95                                 XMoveWindow(dpy, c->win, c->x, c->y);
96                         c->isbanned = False;
97                         resize(c, c->x, c->y, c->w, c->h, True);
98                 }
99                 else {
100                         c->isbanned = True;
101                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
102                 }
103         }
104         if(!sel || !isvisible(sel)) {
105                 for(c = stack; c && !isvisible(c); c = c->snext);
106                 focus(c);
107         }
108         restack();
109 }
110 void
111 dotile(void) {
112         unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
113         Client *c;
114
115         for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
116                 n++;
117         /* window geoms */
118         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
119         mw = (n > nmaster) ? (waw * master) / 1000 : waw;
120         th = (n > nmaster) ? wah / (n - nmaster) : 0;
121         tw = waw - mw;
122
123         for(i = 0, c = clients; c; c = c->next)
124                 if(isvisible(c)) {
125                         if(c->isbanned)
126                                 XMoveWindow(dpy, c->win, c->x, c->y);
127                         c->isbanned = False;
128                         if(c->isfloat)
129                                 continue;
130                         c->ismax = False;
131                         nx = wax;
132                         ny = way;
133                         if(i < nmaster) {
134                                 ny += i * mh;
135                                 nw = mw - 2 * BORDERPX;
136                                 nh = mh - 2 * BORDERPX;
137                         }
138                         else {  /* tile window */
139                                 nx += mw;
140                                 nw = tw - 2 * BORDERPX;
141                                 if(th > 2 * BORDERPX) {
142                                         ny += (i - nmaster) * th;
143                                         nh = th - 2 * BORDERPX;
144                                 }
145                                 else /* fallback if th <= 2 * BORDERPX */
146                                         nh = wah - 2 * BORDERPX;
147                         }
148                         resize(c, nx, ny, nw, nh, False);
149                         i++;
150                 }
151                 else {
152                         c->isbanned = True;
153                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
154                 }
155         if(!sel || !isvisible(sel)) {
156                 for(c = stack; c && !isvisible(c); c = c->snext);
157                 focus(c);
158         }
159         restack();
160 }
161
162 void
163 incnmaster(Arg *arg) {
164         if((arrange == dofloat) || (nmaster + arg->i < 1)
165         || (wah / (nmaster + arg->i) <= 2 * BORDERPX))
166                 return;
167         nmaster += arg->i;
168         if(sel)
169                 arrange();
170         else
171                 drawstatus();
172 }
173
174 Bool
175 isvisible(Client *c) {
176         unsigned int i;
177
178         for(i = 0; i < ntags; i++)
179                 if(c->tags[i] && seltag[i])
180                         return True;
181         return False;
182 }
183
184 void
185 resizemaster(Arg *arg) {
186         if(arrange != dotile)
187                 return;
188         if(arg->i == 0)
189                 master = MASTER;
190         else {
191                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
192                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
193                         return;
194                 master += arg->i;
195         }
196         arrange();
197 }
198
199 void
200 restack(void) {
201         Client *c;
202         XEvent ev;
203
204         drawstatus();
205         if(!sel)
206                 return;
207         if(sel->isfloat || arrange == dofloat)
208                 XRaiseWindow(dpy, sel->win);
209         if(arrange != dofloat) {
210                 if(!sel->isfloat)
211                         XLowerWindow(dpy, sel->win);
212                 for(c = nextmanaged(clients); c; c = nextmanaged(c->next)) {
213                         if(c == sel)
214                                 continue;
215                         XLowerWindow(dpy, c->win);
216                 }
217         }
218         XSync(dpy, False);
219         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
220 }
221
222 void
223 settags(Client *c, Client *trans) {
224         char prop[512];
225         unsigned int i, j;
226         regmatch_t tmp;
227         Bool matched = trans != NULL;
228         XClassHint ch = { 0 };
229
230         if(matched)
231                 for(i = 0; i < ntags; i++)
232                         c->tags[i] = trans->tags[i];
233         else {
234                 XGetClassHint(dpy, c->win, &ch);
235                 snprintf(prop, sizeof prop, "%s:%s:%s",
236                                 ch.res_class ? ch.res_class : "",
237                                 ch.res_name ? ch.res_name : "", c->name);
238                 for(i = 0; i < len; i++)
239                         if(regexps[i].propregex && !regexec(regexps[i].propregex, prop, 1, &tmp, 0)) {
240                                 c->isfloat = rule[i].isfloat;
241                                 for(j = 0; regexps[i].tagregex && j < ntags; j++) {
242                                         if(!regexec(regexps[i].tagregex, tags[j], 1, &tmp, 0)) {
243                                                 matched = True;
244                                                 c->tags[j] = True;
245                                         }
246                                 }
247                         }
248                 if(ch.res_class)
249                         XFree(ch.res_class);
250                 if(ch.res_name)
251                         XFree(ch.res_name);
252         }
253         if(!matched)
254                 for(i = 0; i < ntags; i++)
255                         c->tags[i] = seltag[i];
256 }
257
258 void
259 tag(Arg *arg) {
260         unsigned int i;
261
262         if(!sel)
263                 return;
264         for(i = 0; i < ntags; i++)
265                 sel->tags[i] = (arg->i == -1) ? True : False;
266         if(arg->i >= 0 && arg->i < ntags)
267                 sel->tags[arg->i] = True;
268         arrange();
269 }
270
271 void
272 togglefloat(Arg *arg) {
273         if(!sel || arrange == dofloat)
274                 return;
275         sel->isfloat = !sel->isfloat;
276         arrange();
277 }
278
279 void
280 toggletag(Arg *arg) {
281         unsigned int i;
282
283         if(!sel)
284                 return;
285         sel->tags[arg->i] = !sel->tags[arg->i];
286         for(i = 0; i < ntags && !sel->tags[i]; i++);
287         if(i == ntags)
288                 sel->tags[arg->i] = True;
289         arrange();
290 }
291
292 void
293 togglemode(Arg *arg) {
294         arrange = (arrange == dofloat) ? dotile : dofloat;
295         if(sel)
296                 arrange();
297         else
298                 drawstatus();
299 }
300
301 void
302 toggleview(Arg *arg) {
303         unsigned int i;
304
305         seltag[arg->i] = !seltag[arg->i];
306         for(i = 0; i < ntags && !seltag[i]; i++);
307         if(i == ntags)
308                 seltag[arg->i] = True; /* cannot toggle last view */
309         arrange();
310 }
311
312 void
313 view(Arg *arg) {
314         unsigned int i;
315
316         for(i = 0; i < ntags; i++)
317                 seltag[i] = (arg->i == -1) ? True : False;
318         if(arg->i >= 0 && arg->i < ntags)
319                 seltag[arg->i] = True;
320         arrange();
321 }
322
323 void
324 zoom(Arg *arg) {
325         unsigned int n;
326         Client *c;
327
328         if(!sel)
329                 return;
330         if(sel->isfloat || (arrange == dofloat)) {
331                 togglemax(sel);
332                 return;
333         }
334         for(n = 0, c = nextmanaged(clients); c; c = nextmanaged(c->next))
335                 n++;
336
337         if((c = sel) == nextmanaged(clients))
338                 if(!(c = nextmanaged(c->next)))
339                         return;
340         detach(c);
341         attach(c);
342         focus(c);
343         arrange();
344 }