1 /* See LICENSE file for copyright and license details.
3 * dynamic window manager is designed like any other X client as well. It is
4 * driven through handling X events. In contrast to other X clients, a window
5 * manager selects for SubstructureRedirectMask on the root window, to receive
6 * events about window (dis-)appearance. Only one X connection at a time is
7 * allowed to select for this event mask.
9 * Calls to fetch an X event from the event queue are blocking. Due reading
10 * status text from standard input, a select()-driven main loop has been
11 * implemented which selects for reads on the X connection and STDIN_FILENO to
12 * handle all data smoothly. The event handlers of dwm are organized in an
13 * array which is accessed whenever a new event has been fetched. This allows
14 * event dispatching in O(1) time.
16 * Each child of the root window is called a client, except windows which have
17 * set the override_redirect flag. Clients are organized in a global
18 * doubly-linked client list, the focus history is remembered through a global
19 * stack list. Each client contains an array of Bools of the same size as the
20 * global tags array to indicate the tags of a client.
22 * Keys and tagging rules are organized as arrays and defined in config.h.
24 * To understand everything else, start reading main().
33 #include <sys/select.h>
34 #include <sys/types.h>
37 #include <X11/cursorfont.h>
38 #include <X11/keysym.h>
39 #include <X11/Xatom.h>
41 #include <X11/Xproto.h>
42 #include <X11/Xutil.h>
44 #include <X11/extensions/Xinerama.h>
48 #define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
49 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
50 #define LENGTH(x) (sizeof x / sizeof x[0])
52 #define MOUSEMASK (BUTTONMASK | PointerMotionMask)
56 enum { BarTop, BarBot, BarOff }; /* bar position */
57 enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
58 enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
59 enum { NetSupported, NetWMName, NetLast }; /* EWMH atoms */
60 enum { WMProtocols, WMDelete, WMName, WMState, WMLast };/* default atoms */
63 typedef struct Client Client;
67 int basew, baseh, incw, inch, maxw, maxh, minw, minh;
68 int minax, maxax, minay, maxay;
70 unsigned int border, oldborder;
71 Bool isbanned, isfixed, isfloating, isurgent;
82 unsigned long norm[ColLast];
83 unsigned long sel[ColLast];
93 } DC; /* draw context */
98 void (*func)(const char *arg);
104 void (*arrange)(void);
122 int sx, sy, sw, sh, wax, way, wah, waw;
130 /* function declarations */
131 void applyrules(Client *c);
133 void attach(Client *c);
134 void attachstack(Client *c);
136 void buttonpress(XEvent *e);
137 void checkotherwm(void);
139 void compileregs(void);
140 void configure(Client *c);
141 void configurenotify(XEvent *e);
142 void configurerequest(XEvent *e);
143 void destroynotify(XEvent *e);
144 void detach(Client *c);
145 void detachstack(Client *c);
147 void drawsquare(Monitor *, Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
148 void drawtext(Monitor *, const char *text, unsigned long col[ColLast], Bool invert);
149 void *emallocz(unsigned int size);
150 void enternotify(XEvent *e);
151 void eprint(const char *errstr, ...);
152 void expose(XEvent *e);
153 void floating(void); /* default floating layout */
154 void focus(Client *c);
155 void focusin(XEvent *e);
156 void focusnext(const char *arg);
157 void focusprev(const char *arg);
158 Client *getclient(Window w);
159 unsigned long getcolor(const char *colstr, int screen);
160 long getstate(Window w);
161 Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
162 void grabbuttons(Client *c, Bool focused);
164 unsigned int idxoftag(const char *tag);
165 void initfont(Monitor*, const char *fontstr);
166 Bool isoccupied(unsigned int monitor, unsigned int t);
167 Bool isprotodel(Client *c);
168 Bool isurgent(unsigned int monitor, unsigned int t);
169 Bool isvisible(Client *c, int monitor);
170 void keypress(XEvent *e);
171 void killclient(const char *arg);
172 void manage(Window w, XWindowAttributes *wa);
173 void mappingnotify(XEvent *e);
174 void maprequest(XEvent *e);
175 void movemouse(Client *c);
176 Client *nexttiled(Client *c, int monitor);
177 void propertynotify(XEvent *e);
178 void quit(const char *arg);
179 void reapply(const char *arg);
180 void resize(Client *c, int x, int y, int w, int h, Bool sizehints);
181 void resizemouse(Client *c);
185 void setclientstate(Client *c, long state);
186 void setlayout(const char *arg);
187 void setmwfact(const char *arg);
189 void spawn(const char *arg);
190 void tag(const char *arg);
191 unsigned int textnw(Monitor*, const char *text, unsigned int len);
192 unsigned int textw(Monitor*, const char *text);
194 void togglebar(const char *arg);
195 void togglefloating(const char *arg);
196 void toggletag(const char *arg);
197 void toggleview(const char *arg);
198 void unban(Client *c);
199 void unmanage(Client *c);
200 void unmapnotify(XEvent *e);
201 void updatebarpos(Monitor *m);
202 void updatesizehints(Client *c);
203 void updatetitle(Client *c);
204 void updatewmhints(Client *c);
205 void view(const char *arg);
206 void viewprevtag(const char *arg); /* views previous selected tags */
207 int xerror(Display *dpy, XErrorEvent *ee);
208 int xerrordummy(Display *dsply, XErrorEvent *ee);
209 int xerrorstart(Display *dsply, XErrorEvent *ee);
210 void zoom(const char *arg);
212 void movetomonitor(const char *arg);
213 void selectmonitor(const char *arg);
219 int (*xerrorxlib)(Display *, XErrorEvent *);
220 unsigned int bh, bpos;
221 unsigned int blw = 0;
222 unsigned int numlockmask = 0;
223 void (*handler[LASTEvent]) (XEvent *) = {
224 [ButtonPress] = buttonpress,
225 [ConfigureRequest] = configurerequest,
226 [ConfigureNotify] = configurenotify,
227 [DestroyNotify] = destroynotify,
228 [EnterNotify] = enternotify,
231 [KeyPress] = keypress,
232 [MappingNotify] = mappingnotify,
233 [MapRequest] = maprequest,
234 [PropertyNotify] = propertynotify,
235 [UnmapNotify] = unmapnotify
237 Atom wmatom[WMLast], netatom[NetLast];
238 Bool isxinerama = False;
239 Bool domwfact = True;
241 Bool otherwm, readin;
243 Client *clients = NULL;
245 Client *stack = NULL;
246 Cursor cursor[CurLast];
253 /* configuration, allows nested code to access above variables */
256 //Bool prevtags[LENGTH(tags)];
258 /* function implementations */
260 applyrules(Client *c) {
261 static char buf[512];
264 Bool matched_tag = False;
265 Bool matched_monitor = False;
266 XClassHint ch = { 0 };
269 XGetClassHint(dpy, c->win, &ch);
270 snprintf(buf, sizeof buf, "%s:%s:%s",
271 ch.res_class ? ch.res_class : "",
272 ch.res_name ? ch.res_name : "", c->name);
273 for(i = 0; i < LENGTH(rules); i++)
274 if(regs[i].propregex && !regexec(regs[i].propregex, buf, 1, &tmp, 0)) {
275 if (rules[i].monitor >= 0 && rules[i].monitor < mcount) {
276 matched_monitor = True;
277 c->monitor = rules[i].monitor;
280 c->isfloating = rules[i].isfloating;
281 for(j = 0; regs[i].tagregex && j < LENGTH(tags); j++) {
282 if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
293 memcpy(c->tags, monitors[monitorat()].seltags, sizeof initags);
294 if (!matched_monitor)
295 c->monitor = monitorat();
302 for(c = clients; c; c = c->next)
303 if(isvisible(c, c->monitor))
308 monitors[selmonitor].layout->arrange();
322 attachstack(Client *c) {
331 XMoveWindow(dpy, c->win, c->x + 3 * monitors[c->monitor].sw, c->y);
336 buttonpress(XEvent *e) {
339 XButtonPressedEvent *ev = &e->xbutton;
341 Monitor *m = &monitors[monitorat()];
343 if(ev->window == m->barwin) {
345 for(i = 0; i < LENGTH(tags); i++) {
346 x += textw(m, tags[i]);
348 if(ev->button == Button1) {
349 if(ev->state & MODKEY)
354 else if(ev->button == Button3) {
355 if(ev->state & MODKEY)
363 if((ev->x < x + blw) && ev->button == Button1)
366 else if((c = getclient(ev->window))) {
368 if(CLEANMASK(ev->state) != MODKEY)
370 if(ev->button == Button1) {
374 else if(ev->button == Button2) {
375 if((floating != m->layout->arrange) && c->isfloating)
376 togglefloating(NULL);
380 else if(ev->button == Button3 && !c->isfixed) {
390 XSetErrorHandler(xerrorstart);
392 /* this causes an error if some other window manager is running */
393 XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
396 eprint("dwm: another window manager is already running\n");
398 XSetErrorHandler(NULL);
399 xerrorxlib = XSetErrorHandler(xerror);
411 for(i = 0; i < mcount; i++) {
412 Monitor *m = &monitors[i];
414 XFreeFontSet(dpy, m->dc.font.set);
416 XFreeFont(dpy, m->dc.font.xfont);
417 XUngrabKey(dpy, AnyKey, AnyModifier, root);
418 XFreePixmap(dpy, m->dc.drawable);
419 XFreeGC(dpy, m->dc.gc);
420 XDestroyWindow(dpy, m->barwin);
421 XFreeCursor(dpy, cursor[CurNormal]);
422 XFreeCursor(dpy, cursor[CurResize]);
423 XFreeCursor(dpy, cursor[CurMove]);
424 XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
436 regs = emallocz(LENGTH(rules) * sizeof(Regs));
437 for(i = 0; i < LENGTH(rules); i++) {
439 reg = emallocz(sizeof(regex_t));
440 if(regcomp(reg, rules[i].prop, REG_EXTENDED))
443 regs[i].propregex = reg;
446 reg = emallocz(sizeof(regex_t));
447 if(regcomp(reg, rules[i].tags, REG_EXTENDED))
450 regs[i].tagregex = reg;
456 configure(Client *c) {
459 ce.type = ConfigureNotify;
467 ce.border_width = c->border;
469 ce.override_redirect = False;
470 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
474 configurenotify(XEvent *e) {
475 XConfigureEvent *ev = &e->xconfigure;
476 Monitor *m = &monitors[selmonitor];
478 if(ev->window == root && (ev->width != m->sw || ev->height != m->sh)) {
481 XFreePixmap(dpy, dc.drawable);
482 dc.drawable = XCreatePixmap(dpy, root, m->sw, bh, DefaultDepth(dpy, m->screen));
483 XResizeWindow(dpy, m->barwin, m->sw, bh);
490 configurerequest(XEvent *e) {
492 XConfigureRequestEvent *ev = &e->xconfigurerequest;
495 if((c = getclient(ev->window))) {
496 Monitor *m = &monitors[c->monitor];
497 if(ev->value_mask & CWBorderWidth)
498 c->border = ev->border_width;
499 if(c->isfixed || c->isfloating || (floating == m->layout->arrange)) {
500 if(ev->value_mask & CWX)
502 if(ev->value_mask & CWY)
504 if(ev->value_mask & CWWidth)
506 if(ev->value_mask & CWHeight)
508 if((c->x - m->sx + c->w) > m->sw && c->isfloating)
509 c->x = m->sx + (m->sw / 2 - c->w / 2); /* center in x direction */
510 if((c->y - m->sy + c->h) > m->sh && c->isfloating)
511 c->y = m->sy + (m->sh / 2 - c->h / 2); /* center in y direction */
512 if((ev->value_mask & (CWX | CWY))
513 && !(ev->value_mask & (CWWidth | CWHeight)))
515 if(isvisible(c, monitorat()))
516 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
524 wc.width = ev->width;
525 wc.height = ev->height;
526 wc.border_width = ev->border_width;
527 wc.sibling = ev->above;
528 wc.stack_mode = ev->detail;
529 XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
535 destroynotify(XEvent *e) {
537 XDestroyWindowEvent *ev = &e->xdestroywindow;
539 if((c = getclient(ev->window)))
546 c->prev->next = c->next;
548 c->next->prev = c->prev;
551 c->next = c->prev = NULL;
555 detachstack(Client *c) {
558 for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
567 for(i = 0; i < mcount; i++) {
568 Monitor *m = &monitors[i];
570 for(c = stack; c && !isvisible(c, i); c = c->snext);
571 fprintf(stderr, "m%d %s\n", i, c ? c->name : "NIL");
572 for(j = 0; j < LENGTH(tags); j++) {
573 m->dc.w = textw(m, tags[j]);
575 drawtext(m, tags[j], m->dc.sel, isurgent(i, j));
576 drawsquare(m, c && c->tags[j] && c->monitor == i,
577 isoccupied(i, j), isurgent(i, j), m->dc.sel);
580 drawtext(m, tags[j], m->dc.norm, isurgent(i, j));
581 drawsquare(m, c && c->tags[j] && c->monitor == i,
582 isoccupied(i, j), isurgent(i, j), m->dc.norm);
587 drawtext(m, m->layout->symbol, m->dc.norm, False);
588 x = m->dc.x + m->dc.w;
589 if(i == selmonitor) {
590 m->dc.w = textw(m, stext);
591 m->dc.x = m->sw - m->dc.w;
596 drawtext(m, stext, m->dc.norm, False);
600 if((m->dc.w = m->dc.x - x) > bh) {
603 drawtext(m, c->name, m->dc.sel, False);
604 drawsquare(m, False, c->isfloating, False, m->dc.sel);
607 drawtext(m, NULL, m->dc.norm, False);
609 XCopyArea(dpy, m->dc.drawable, m->barwin, m->dc.gc, 0, 0, m->sw, bh, 0, 0);
615 drawsquare(Monitor *m, Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
618 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
620 gcv.foreground = col[invert ? ColBG : ColFG];
621 XChangeGC(dpy, m->dc.gc, GCForeground, &gcv);
622 x = (m->dc.font.ascent + m->dc.font.descent + 2) / 4;
626 r.width = r.height = x + 1;
627 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
630 r.width = r.height = x;
631 XDrawRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
636 drawtext(Monitor *m, const char *text, unsigned long col[ColLast], Bool invert) {
638 static char buf[256];
639 unsigned int len, olen;
640 XRectangle r = { m->dc.x, m->dc.y, m->dc.w, m->dc.h };
642 XSetForeground(dpy, m->dc.gc, col[invert ? ColFG : ColBG]);
643 XFillRectangles(dpy, m->dc.drawable, m->dc.gc, &r, 1);
647 olen = len = strlen(text);
648 if(len >= sizeof buf)
649 len = sizeof buf - 1;
650 memcpy(buf, text, len);
652 h = m->dc.font.ascent + m->dc.font.descent;
653 y = m->dc.y + (m->dc.h / 2) - (h / 2) + m->dc.font.ascent;
654 x = m->dc.x + (h / 2);
655 /* shorten text if necessary */
656 while(len && (w = textnw(m, buf, len)) > m->dc.w - h)
667 return; /* too long */
668 XSetForeground(dpy, m->dc.gc, col[invert ? ColBG : ColFG]);
670 XmbDrawString(dpy, m->dc.drawable, m->dc.font.set, m->dc.gc, x, y, buf, len);
672 XDrawString(dpy, m->dc.drawable, m->dc.gc, x, y, buf, len);
676 emallocz(unsigned int size) {
677 void *res = calloc(1, size);
680 eprint("fatal: could not malloc() %u bytes\n", size);
685 enternotify(XEvent *e) {
687 XCrossingEvent *ev = &e->xcrossing;
689 if(ev->mode != NotifyNormal || ev->detail == NotifyInferior) {
690 if(!isxinerama || ev->window != root)
693 if((c = getclient(ev->window)))
696 selmonitor = monitorat();
697 fprintf(stderr, "updating selmonitor %d\n", selmonitor);
703 eprint(const char *errstr, ...) {
706 va_start(ap, errstr);
707 vfprintf(stderr, errstr, ap);
714 XExposeEvent *ev = &e->xexpose;
717 if(ev->window == monitors[selmonitor].barwin)
723 floating(void) { /* default floating layout */
726 domwfact = dozoom = False;
727 for(c = clients; c; c = c->next)
728 if(isvisible(c, selmonitor))
729 resize(c, c->x, c->y, c->w, c->h, True);
737 selmonitor = c->monitor;
738 m = &monitors[selmonitor];
739 if(!c || (c && !isvisible(c, selmonitor)))
740 for(c = stack; c && !isvisible(c, c->monitor); c = c->snext);
741 if(sel && sel != c) {
742 grabbuttons(sel, False);
743 XSetWindowBorder(dpy, sel->win, monitors[sel->monitor].dc.norm[ColBorder]);
748 grabbuttons(c, True);
753 XSetWindowBorder(dpy, c->win, m->dc.sel[ColBorder]);
754 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
755 selmonitor = c->monitor;
758 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
764 focusin(XEvent *e) { /* there are some broken focus acquiring clients */
765 XFocusChangeEvent *ev = &e->xfocus;
767 if(sel && ev->window != sel->win)
768 XSetInputFocus(dpy, sel->win, RevertToPointerRoot, CurrentTime);
772 focusnext(const char *arg) {
777 for(c = sel->next; c && !isvisible(c, selmonitor); c = c->next);
779 for(c = clients; c && !isvisible(c, selmonitor); c = c->next);
787 focusprev(const char *arg) {
792 for(c = sel->prev; c && !isvisible(c, selmonitor); c = c->prev);
794 for(c = clients; c && c->next; c = c->next);
795 for(; c && !isvisible(c, selmonitor); c = c->prev);
804 getclient(Window w) {
807 for(c = clients; c && c->win != w; c = c->next);
812 getcolor(const char *colstr, int screen) {
813 Colormap cmap = DefaultColormap(dpy, screen);
816 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
817 eprint("error, cannot allocate color '%s'\n", colstr);
825 unsigned char *p = NULL;
826 unsigned long n, extra;
829 status = XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
830 &real, &format, &n, &extra, (unsigned char **)&p);
831 if(status != Success)
840 gettextprop(Window w, Atom atom, char *text, unsigned int size) {
845 if(!text || size == 0)
848 XGetTextProperty(dpy, w, &name, atom);
851 if(name.encoding == XA_STRING)
852 strncpy(text, (char *)name.value, size - 1);
854 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
856 strncpy(text, *list, size - 1);
857 XFreeStringList(list);
860 text[size - 1] = '\0';
866 grabbuttons(Client *c, Bool focused) {
867 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
870 XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
871 GrabModeAsync, GrabModeSync, None, None);
872 XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
873 GrabModeAsync, GrabModeSync, None, None);
874 XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
875 GrabModeAsync, GrabModeSync, None, None);
876 XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
877 GrabModeAsync, GrabModeSync, None, None);
879 XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
880 GrabModeAsync, GrabModeSync, None, None);
881 XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
882 GrabModeAsync, GrabModeSync, None, None);
883 XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
884 GrabModeAsync, GrabModeSync, None, None);
885 XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
886 GrabModeAsync, GrabModeSync, None, None);
888 XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
889 GrabModeAsync, GrabModeSync, None, None);
890 XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
891 GrabModeAsync, GrabModeSync, None, None);
892 XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
893 GrabModeAsync, GrabModeSync, None, None);
894 XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
895 GrabModeAsync, GrabModeSync, None, None);
898 XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
899 GrabModeAsync, GrabModeSync, None, None);
906 XModifierKeymap *modmap;
908 /* init modifier map */
909 modmap = XGetModifierMapping(dpy);
910 for(i = 0; i < 8; i++)
911 for(j = 0; j < modmap->max_keypermod; j++) {
912 if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock))
913 numlockmask = (1 << i);
915 XFreeModifiermap(modmap);
917 XUngrabKey(dpy, AnyKey, AnyModifier, root);
918 for(i = 0; i < LENGTH(keys); i++) {
919 code = XKeysymToKeycode(dpy, keys[i].keysym);
920 XGrabKey(dpy, code, keys[i].mod, root, True,
921 GrabModeAsync, GrabModeAsync);
922 XGrabKey(dpy, code, keys[i].mod | LockMask, root, True,
923 GrabModeAsync, GrabModeAsync);
924 XGrabKey(dpy, code, keys[i].mod | numlockmask, root, True,
925 GrabModeAsync, GrabModeAsync);
926 XGrabKey(dpy, code, keys[i].mod | numlockmask | LockMask, root, True,
927 GrabModeAsync, GrabModeAsync);
932 idxoftag(const char *tag) {
935 for(i = 0; (i < LENGTH(tags)) && (tags[i] != tag); i++);
936 return (i < LENGTH(tags)) ? i : 0;
940 initfont(Monitor *m, const char *fontstr) {
941 char *def, **missing;
946 XFreeFontSet(dpy, m->dc.font.set);
947 m->dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
950 fprintf(stderr, "dwm: missing fontset: %s\n", missing[n]);
951 XFreeStringList(missing);
954 XFontSetExtents *font_extents;
955 XFontStruct **xfonts;
957 m->dc.font.ascent = m->dc.font.descent = 0;
958 font_extents = XExtentsOfFontSet(m->dc.font.set);
959 n = XFontsOfFontSet(m->dc.font.set, &xfonts, &font_names);
960 for(i = 0, m->dc.font.ascent = 0, m->dc.font.descent = 0; i < n; i++) {
961 if(m->dc.font.ascent < (*xfonts)->ascent)
962 m->dc.font.ascent = (*xfonts)->ascent;
963 if(m->dc.font.descent < (*xfonts)->descent)
964 m->dc.font.descent = (*xfonts)->descent;
970 XFreeFont(dpy, m->dc.font.xfont);
971 m->dc.font.xfont = NULL;
972 if(!(m->dc.font.xfont = XLoadQueryFont(dpy, fontstr))
973 && !(m->dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
974 eprint("error, cannot load font: '%s'\n", fontstr);
975 m->dc.font.ascent = m->dc.font.xfont->ascent;
976 m->dc.font.descent = m->dc.font.xfont->descent;
978 m->dc.font.height = m->dc.font.ascent + m->dc.font.descent;
982 isoccupied(unsigned int monitor, unsigned int t) {
985 for(c = clients; c; c = c->next)
986 if(c->tags[t] && c->monitor == monitor)
992 isprotodel(Client *c) {
997 if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
998 for(i = 0; !ret && i < n; i++)
999 if(protocols[i] == wmatom[WMDelete])
1007 isurgent(unsigned int monitor, unsigned int t) {
1010 for(c = clients; c; c = c->next)
1011 if(c->monitor == monitor && c->isurgent && c->tags[t])
1017 isvisible(Client *c, int monitor) {
1020 if(c->monitor != monitor)
1022 for(i = 0; i < LENGTH(tags); i++)
1023 if(c->tags[i] && monitors[c->monitor].seltags[i])
1029 keypress(XEvent *e) {
1035 keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
1036 for(i = 0; i < LENGTH(keys); i++)
1037 if(keysym == keys[i].keysym
1038 && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state))
1041 keys[i].func(keys[i].arg);
1046 killclient(const char *arg) {
1051 if(isprotodel(sel)) {
1052 ev.type = ClientMessage;
1053 ev.xclient.window = sel->win;
1054 ev.xclient.message_type = wmatom[WMProtocols];
1055 ev.xclient.format = 32;
1056 ev.xclient.data.l[0] = wmatom[WMDelete];
1057 ev.xclient.data.l[1] = CurrentTime;
1058 XSendEvent(dpy, sel->win, False, NoEventMask, &ev);
1061 XKillClient(dpy, sel->win);
1065 manage(Window w, XWindowAttributes *wa) {
1066 Client *c, *t = NULL;
1072 c = emallocz(sizeof(Client));
1073 c->tags = emallocz(sizeof initags);
1078 m = &monitors[c->monitor];
1080 c->x = wa->x + m->sx;
1081 c->y = wa->y + m->sy;
1084 c->oldborder = wa->border_width;
1086 if(c->w == m->sw && c->h == m->sh) {
1089 c->border = wa->border_width;
1092 if(c->x + c->w + 2 * c->border > m->wax + m->waw)
1093 c->x = m->wax + m->waw - c->w - 2 * c->border;
1094 if(c->y + c->h + 2 * c->border > m->way + m->wah)
1095 c->y = m->way + m->wah - c->h - 2 * c->border;
1100 c->border = BORDERPX;
1102 wc.border_width = c->border;
1103 XConfigureWindow(dpy, w, CWBorderWidth, &wc);
1104 XSetWindowBorder(dpy, w, m->dc.norm[ColBorder]);
1105 configure(c); /* propagates border_width, if size doesn't change */
1107 XSelectInput(dpy, w, EnterWindowMask | FocusChangeMask | PropertyChangeMask | StructureNotifyMask);
1108 grabbuttons(c, False);
1110 if((rettrans = XGetTransientForHint(dpy, w, &trans) == Success))
1111 for(t = clients; t && t->win != trans; t = t->next);
1113 memcpy(c->tags, t->tags, sizeof initags);
1115 c->isfloating = (rettrans == Success) || c->isfixed;
1118 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h); /* some windows require this */
1120 XMapWindow(dpy, c->win);
1121 setclientstate(c, NormalState);
1126 mappingnotify(XEvent *e) {
1127 XMappingEvent *ev = &e->xmapping;
1129 XRefreshKeyboardMapping(ev);
1130 if(ev->request == MappingKeyboard)
1135 maprequest(XEvent *e) {
1136 static XWindowAttributes wa;
1137 XMapRequestEvent *ev = &e->xmaprequest;
1139 if(!XGetWindowAttributes(dpy, ev->window, &wa))
1141 if(wa.override_redirect)
1143 if(!getclient(ev->window))
1144 manage(ev->window, &wa);
1153 XQueryPointer(dpy, root, &win, &win, &x, &y, &i, &i, &mask);
1154 for(i = 0; i < mcount; i++) {
1155 if((x >= monitors[i].sx && x < monitors[i].sx + monitors[i].sw)
1156 && (y >= monitors[i].sy && y < monitors[i].sy + monitors[i].sh)) {
1164 movemouse(Client *c) {
1165 int x1, y1, ocx, ocy, di, nx, ny;
1172 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1173 None, cursor[CurMove], CurrentTime) != GrabSuccess)
1175 XQueryPointer(dpy, root, &dummy, &dummy, &x1, &y1, &di, &di, &dui);
1177 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
1180 XUngrabPointer(dpy, CurrentTime);
1182 case ConfigureRequest:
1185 handler[ev.type](&ev);
1189 nx = ocx + (ev.xmotion.x - x1);
1190 ny = ocy + (ev.xmotion.y - y1);
1191 Monitor *m = &monitors[monitorat()];
1192 if(abs(m->wax - nx) < SNAP)
1194 else if(abs((m->wax + m->waw) - (nx + c->w + 2 * c->border)) < SNAP)
1195 nx = m->wax + m->waw - c->w - 2 * c->border;
1196 if(abs(m->way - ny) < SNAP)
1198 else if(abs((m->way + m->wah) - (ny + c->h + 2 * c->border)) < SNAP)
1199 ny = m->way + m->wah - c->h - 2 * c->border;
1200 if((monitors[selmonitor].layout->arrange != floating) && (abs(nx - c->x) > SNAP || abs(ny - c->y) > SNAP))
1201 togglefloating(NULL);
1202 if((monitors[selmonitor].layout->arrange == floating) || c->isfloating)
1203 resize(c, nx, ny, c->w, c->h, False);
1204 memcpy(c->tags, monitors[monitorat()].seltags, sizeof initags);
1211 nexttiled(Client *c, int monitor) {
1212 for(; c && (c->isfloating || !isvisible(c, monitor)); c = c->next);
1217 propertynotify(XEvent *e) {
1220 XPropertyEvent *ev = &e->xproperty;
1222 if(ev->state == PropertyDelete)
1223 return; /* ignore */
1224 if((c = getclient(ev->window))) {
1227 case XA_WM_TRANSIENT_FOR:
1228 XGetTransientForHint(dpy, c->win, &trans);
1229 if(!c->isfloating && (c->isfloating = (getclient(trans) != NULL)))
1232 case XA_WM_NORMAL_HINTS:
1240 if(ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
1249 quit(const char *arg) {
1250 readin = running = False;
1254 reapply(const char *arg) {
1255 static Bool zerotags[LENGTH(tags)] = { 0 };
1258 for(c = clients; c; c = c->next) {
1259 memcpy(c->tags, zerotags, sizeof zerotags);
1266 resize(Client *c, int x, int y, int w, int h, Bool sizehints) {
1268 //Monitor scr = monitors[monitorat()];
1269 // c->monitor = monitorat();
1272 /* set minimum possible */
1278 /* temporarily remove base dimensions */
1282 /* adjust for aspect limits */
1283 if (c->minay > 0 && c->maxay > 0 && c->minax > 0 && c->maxax > 0) {
1284 if (w * c->maxay > h * c->maxax)
1285 w = h * c->maxax / c->maxay;
1286 else if (w * c->minay < h * c->minax)
1287 h = w * c->minay / c->minax;
1290 /* adjust for increment value */
1296 /* restore base dimensions */
1300 if(c->minw > 0 && w < c->minw)
1302 if(c->minh > 0 && h < c->minh)
1304 if(c->maxw > 0 && w > c->maxw)
1306 if(c->maxh > 0 && h > c->maxh)
1309 if(w <= 0 || h <= 0)
1311 /* TODO: offscreen appearance fixes */
1314 x = scr.sw - w - 2 * c->border;
1316 y = scr.sh - h - 2 * c->border;
1317 if(x + w + 2 * c->border < scr.sx)
1319 if(y + h + 2 * c->border < scr.sy)
1322 if(c->x != x || c->y != y || c->w != w || c->h != h) {
1325 c->w = wc.width = w;
1326 c->h = wc.height = h;
1327 wc.border_width = c->border;
1328 XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
1335 resizemouse(Client *c) {
1342 if(XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
1343 None, cursor[CurResize], CurrentTime) != GrabSuccess)
1345 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->border - 1, c->h + c->border - 1);
1347 XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask , &ev);
1350 XWarpPointer(dpy, None, c->win, 0, 0, 0, 0,
1351 c->w + c->border - 1, c->h + c->border - 1);
1352 XUngrabPointer(dpy, CurrentTime);
1353 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1355 case ConfigureRequest:
1358 handler[ev.type](&ev);
1362 if((nw = ev.xmotion.x - ocx - 2 * c->border + 1) <= 0)
1364 if((nh = ev.xmotion.y - ocy - 2 * c->border + 1) <= 0)
1366 if((monitors[selmonitor].layout->arrange != floating) && (abs(nw - c->w) > SNAP || abs(nh - c->h) > SNAP))
1367 togglefloating(NULL);
1368 if((monitors[selmonitor].layout->arrange == floating) || c->isfloating)
1369 resize(c, c->x, c->y, nw, nh, True);
1385 if(sel->isfloating || (monitors[selmonitor].layout->arrange == floating))
1386 XRaiseWindow(dpy, sel->win);
1387 if(monitors[selmonitor].layout->arrange != floating) {
1388 wc.stack_mode = Below;
1389 wc.sibling = monitors[selmonitor].barwin;
1390 if(!sel->isfloating) {
1391 XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
1392 wc.sibling = sel->win;
1394 for(i = 0; i < mcount; i++) {
1395 for(c = nexttiled(clients, i); c; c = nexttiled(c->next, i)) {
1398 XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
1399 wc.sibling = c->win;
1404 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1410 char buf[sizeof stext];
1413 unsigned int len, offset;
1416 /* main event loop, also reads status text from stdin */
1418 xfd = ConnectionNumber(dpy);
1421 len = sizeof stext - 1;
1422 buf[len] = stext[len] = '\0'; /* 0-terminator is never touched */
1426 FD_SET(STDIN_FILENO, &rd);
1428 if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) {
1431 eprint("select failed\n");
1433 if(FD_ISSET(STDIN_FILENO, &rd)) {
1434 switch((r = read(STDIN_FILENO, buf + offset, len - offset))) {
1436 strncpy(stext, strerror(errno), len);
1440 strncpy(stext, "EOF", 4);
1444 for(p = buf + offset; r > 0; p++, r--, offset++)
1445 if(*p == '\n' || *p == '\0') {
1447 strncpy(stext, buf, len);
1448 p += r - 1; /* p is buf + offset + r - 1 */
1449 for(r = 0; *(p - r) && *(p - r) != '\n'; r++);
1452 memmove(buf, p - r + 1, r);
1459 while(XPending(dpy)) {
1460 XNextEvent(dpy, &ev);
1461 if(handler[ev.type])
1462 (handler[ev.type])(&ev); /* call handler */
1469 unsigned int i, num;
1470 Window *wins, d1, d2;
1471 XWindowAttributes wa;
1474 if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
1475 for(i = 0; i < num; i++) {
1476 if(!XGetWindowAttributes(dpy, wins[i], &wa)
1477 || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
1479 if(wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
1480 manage(wins[i], &wa);
1482 for(i = 0; i < num; i++) { /* now the transients */
1483 if(!XGetWindowAttributes(dpy, wins[i], &wa))
1485 if(XGetTransientForHint(dpy, wins[i], &d1)
1486 && (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
1487 manage(wins[i], &wa);
1495 setclientstate(Client *c, long state) {
1496 long data[] = {state, None};
1498 XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
1499 PropModeReplace, (unsigned char *)data, 2);
1503 setlayout(const char *arg) {
1505 Monitor *m = &monitors[monitorat()];
1509 if(m->layout == &layouts[LENGTH(layouts)])
1510 m->layout = &layouts[0];
1513 for(i = 0; i < LENGTH(layouts); i++)
1514 if(!strcmp(arg, layouts[i].symbol))
1516 if(i == LENGTH(layouts))
1518 m->layout = &layouts[i];
1527 setmwfact(const char *arg) {
1530 Monitor *m = &monitors[monitorat()];
1534 /* arg handling, manipulate mwfact */
1537 else if(sscanf(arg, "%lf", &delta) == 1) {
1538 if(arg[0] == '+' || arg[0] == '-')
1544 else if(m->mwfact > 0.9)
1552 unsigned int i, j, k;
1554 XSetWindowAttributes wa;
1555 XineramaScreenInfo *info = NULL;
1558 wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
1559 wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
1560 wmatom[WMName] = XInternAtom(dpy, "WM_NAME", False);
1561 wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
1562 netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
1563 netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
1566 wa.cursor = cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
1567 cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
1568 cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur);
1570 // init screens/monitors first
1572 if((isxinerama = XineramaIsActive(dpy)))
1573 info = XineramaQueryScreens(dpy, &mcount);
1574 monitors = emallocz(mcount * sizeof(Monitor));
1576 root = DefaultRootWindow(dpy);
1578 for(i = 0; i < mcount; i++) {
1582 m->screen = isxinerama ? 0 : i;
1584 if (mcount != 1 && isxinerama) {
1585 m->sx = info[i].x_org;
1586 m->sy = info[i].y_org;
1587 m->sw = info[i].width;
1588 m->sh = info[i].height;
1589 fprintf(stderr, "monitor[%d]: %d,%d,%d,%d\n", i, m->sx, m->sy, m->sw, m->sh);
1594 m->sw = DisplayWidth(dpy, m->screen);
1595 m->sh = DisplayHeight(dpy, m->screen);
1598 m->seltags = emallocz(sizeof initags);
1599 m->prevtags = emallocz(sizeof initags);
1601 memcpy(m->seltags, initags, sizeof initags);
1602 memcpy(m->prevtags, initags, sizeof initags);
1604 /* init appearance */
1605 m->dc.norm[ColBorder] = getcolor(NORMBORDERCOLOR, m->screen);
1606 m->dc.norm[ColBG] = getcolor(NORMBGCOLOR, m->screen);
1607 m->dc.norm[ColFG] = getcolor(NORMFGCOLOR, m->screen);
1608 m->dc.sel[ColBorder] = getcolor(SELBORDERCOLOR, m->screen);
1609 m->dc.sel[ColBG] = getcolor(SELBGCOLOR, m->screen);
1610 m->dc.sel[ColFG] = getcolor(SELFGCOLOR, m->screen);
1612 m->dc.h = bh = m->dc.font.height + 2;
1616 m->layout = &layouts[0];
1617 for(blw = k = 0; k < LENGTH(layouts); k++) {
1618 j = textw(m, layouts[k].symbol);
1623 // TODO: bpos per screen?
1625 wa.override_redirect = 1;
1626 wa.background_pixmap = ParentRelative;
1627 wa.event_mask = ButtonPressMask | ExposureMask;
1630 m->barwin = XCreateWindow(dpy, root, m->sx, m->sy, m->sw, bh, 0,
1631 DefaultDepth(dpy, m->screen), CopyFromParent, DefaultVisual(dpy, m->screen),
1632 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
1633 XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
1635 XMapRaised(dpy, m->barwin);
1636 strcpy(stext, "dwm-"VERSION);
1637 m->dc.drawable = XCreatePixmap(dpy, root, m->sw, bh, DefaultDepth(dpy, m->screen));
1638 m->dc.gc = XCreateGC(dpy, root, 0, 0);
1639 XSetLineAttributes(dpy, m->dc.gc, 1, LineSolid, CapButt, JoinMiter);
1641 XSetFont(dpy, m->dc.gc, m->dc.font.xfont->fid);
1643 /* EWMH support per monitor */
1644 XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
1645 PropModeReplace, (unsigned char *) netatom, NetLast);
1647 /* select for events */
1648 wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask
1649 | EnterWindowMask | LeaveWindowMask | StructureNotifyMask;
1650 XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
1651 XSelectInput(dpy, root, wa.event_mask);
1662 selmonitor = monitorat();
1663 fprintf(stderr, "selmonitor == %d\n", selmonitor);
1667 spawn(const char *arg) {
1668 static char *shell = NULL;
1670 if(!shell && !(shell = getenv("SHELL")))
1674 /* The double-fork construct avoids zombie processes and keeps the code
1675 * clean from stupid signal handlers. */
1679 close(ConnectionNumber(dpy));
1681 execl(shell, shell, "-c", arg, (char *)NULL);
1682 fprintf(stderr, "dwm: execl '%s -c %s'", shell, arg);
1691 tag(const char *arg) {
1696 for(i = 0; i < LENGTH(tags); i++)
1697 sel->tags[i] = (NULL == arg);
1698 sel->tags[idxoftag(arg)] = True;
1703 textnw(Monitor *m, const char *text, unsigned int len) {
1706 if(m->dc.font.set) {
1707 XmbTextExtents(m->dc.font.set, text, len, NULL, &r);
1710 return XTextWidth(m->dc.font.xfont, text, len);
1714 textw(Monitor *m, const char *text) {
1715 return textnw(m, text, strlen(text)) + m->dc.font.height;
1720 unsigned int i, j, n, nx, ny, nw, nh, mw, th;
1723 domwfact = dozoom = True;
1725 nx = ny = nw = 0; /* gcc stupidity requires this */
1727 for (i = 0; i < mcount; i++) {
1728 Monitor *m = &monitors[i];
1730 for(n = 0, c = nexttiled(clients, i); c; c = nexttiled(c->next, i))
1734 mw = (n == 1) ? m->waw : m->mwfact * m->waw;
1735 th = (n > 1) ? m->wah / (n - 1) : 0;
1736 if(n > 1 && th < bh)
1739 for(j = 0, c = mc = nexttiled(clients, i); c; c = nexttiled(c->next, i)) {
1740 if(j == 0) { /* master */
1743 nw = mw - 2 * c->border;
1744 nh = m->wah - 2 * c->border;
1746 else { /* tile window */
1749 nx += mc->w + 2 * mc->border;
1750 nw = m->waw - mw - 2 * c->border;
1752 if(j + 1 == n) /* remainder */
1753 nh = (m->way + m->wah) - ny - 2 * c->border;
1755 nh = th - 2 * c->border;
1757 fprintf(stderr, "tile(%d, %d, %d, %d)\n", nx, ny, nw, nh);
1758 resize(c, nx, ny, nw, nh, RESIZEHINTS);
1759 if((RESIZEHINTS) && ((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw)))
1760 /* client doesn't accept size constraints */
1761 resize(c, nx, ny, nw, nh, False);
1762 if(n > 1 && th != m->wah)
1763 ny = c->y + c->h + 2 * c->border;
1768 fprintf(stderr, "done\n");
1771 togglebar(const char *arg) {
1773 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
1776 updatebarpos(&monitors[monitorat()]);
1781 togglefloating(const char *arg) {
1784 sel->isfloating = !sel->isfloating;
1786 resize(sel, sel->x, sel->y, sel->w, sel->h, True);
1791 toggletag(const char *arg) {
1797 sel->tags[i] = !sel->tags[i];
1798 for(j = 0; j < LENGTH(tags) && !sel->tags[j]; j++);
1799 if(j == LENGTH(tags))
1800 sel->tags[i] = True; /* at least one tag must be enabled */
1805 toggleview(const char *arg) {
1808 Monitor *m = &monitors[monitorat()];
1811 m->seltags[i] = !m->seltags[i];
1812 for(j = 0; j < LENGTH(tags) && !m->seltags[j]; j++);
1813 if(j == LENGTH(tags))
1814 m->seltags[i] = True; /* at least one tag must be viewed */
1822 XMoveWindow(dpy, c->win, c->x, c->y);
1823 c->isbanned = False;
1827 unmanage(Client *c) {
1830 wc.border_width = c->oldborder;
1831 /* The server grab construct avoids race conditions. */
1833 XSetErrorHandler(xerrordummy);
1834 XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
1839 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
1840 setclientstate(c, WithdrawnState);
1844 XSetErrorHandler(xerror);
1850 unmapnotify(XEvent *e) {
1852 XUnmapEvent *ev = &e->xunmap;
1854 if((c = getclient(ev->window)))
1859 updatebarpos(Monitor *m) {
1870 XMoveWindow(dpy, m->barwin, m->sx, m->sy);
1874 XMoveWindow(dpy, m->barwin, m->sx, m->sy + m->wah);
1877 XMoveWindow(dpy, m->barwin, m->sx, m->sy - bh);
1881 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
1885 updatesizehints(Client *c) {
1889 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
1891 c->flags = size.flags;
1892 if(c->flags & PBaseSize) {
1893 c->basew = size.base_width;
1894 c->baseh = size.base_height;
1896 else if(c->flags & PMinSize) {
1897 c->basew = size.min_width;
1898 c->baseh = size.min_height;
1901 c->basew = c->baseh = 0;
1902 if(c->flags & PResizeInc) {
1903 c->incw = size.width_inc;
1904 c->inch = size.height_inc;
1907 c->incw = c->inch = 0;
1908 if(c->flags & PMaxSize) {
1909 c->maxw = size.max_width;
1910 c->maxh = size.max_height;
1913 c->maxw = c->maxh = 0;
1914 if(c->flags & PMinSize) {
1915 c->minw = size.min_width;
1916 c->minh = size.min_height;
1918 else if(c->flags & PBaseSize) {
1919 c->minw = size.base_width;
1920 c->minh = size.base_height;
1923 c->minw = c->minh = 0;
1924 if(c->flags & PAspect) {
1925 c->minax = size.min_aspect.x;
1926 c->maxax = size.max_aspect.x;
1927 c->minay = size.min_aspect.y;
1928 c->maxay = size.max_aspect.y;
1931 c->minax = c->maxax = c->minay = c->maxay = 0;
1932 c->isfixed = (c->maxw && c->minw && c->maxh && c->minh
1933 && c->maxw == c->minw && c->maxh == c->minh);
1937 updatetitle(Client *c) {
1938 if(!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
1939 gettextprop(c->win, wmatom[WMName], c->name, sizeof c->name);
1943 updatewmhints(Client *c) {
1946 if((wmh = XGetWMHints(dpy, c->win))) {
1947 c->isurgent = (wmh->flags & XUrgencyHint) ? True : False;
1952 /* There's no way to check accesses to destroyed windows, thus those cases are
1953 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
1954 * default error handler, which may call exit. */
1956 xerror(Display *dpy, XErrorEvent *ee) {
1957 if(ee->error_code == BadWindow
1958 || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
1959 || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
1960 || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
1961 || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
1962 || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
1963 || (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
1964 || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
1966 fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
1967 ee->request_code, ee->error_code);
1968 return xerrorxlib(dpy, ee); /* may call exit */
1972 xerrordummy(Display *dsply, XErrorEvent *ee) {
1976 /* Startup Error handler to check if another window manager
1977 * is already running. */
1979 xerrorstart(Display *dsply, XErrorEvent *ee) {
1985 view(const char *arg) {
1987 Bool tmp[LENGTH(tags)];
1988 Monitor *m = &monitors[monitorat()];
1990 for(i = 0; i < LENGTH(tags); i++)
1991 tmp[i] = (NULL == arg);
1992 tmp[idxoftag(arg)] = True;
1993 if(memcmp(m->seltags, tmp, sizeof initags) != 0) {
1994 memcpy(m->prevtags, m->seltags, sizeof initags);
1995 memcpy(m->seltags, tmp, sizeof initags);
2001 viewprevtag(const char *arg) {
2002 static Bool tmp[LENGTH(tags)];
2004 Monitor *m = &monitors[monitorat()];
2006 memcpy(tmp, m->seltags, sizeof initags);
2007 memcpy(m->seltags, m->prevtags, sizeof initags);
2008 memcpy(m->prevtags, tmp, sizeof initags);
2013 zoom(const char *arg) {
2016 if(!sel || !dozoom || sel->isfloating)
2018 if((c = sel) == nexttiled(clients, c->monitor))
2019 if(!(c = nexttiled(c->next, c->monitor)))
2028 movetomonitor(const char *arg) {
2030 sel->monitor = arg ? atoi(arg) : (sel->monitor+1) % mcount;
2032 memcpy(sel->tags, monitors[sel->monitor].seltags, sizeof initags);
2033 resize(sel, monitors[sel->monitor].wax, monitors[sel->monitor].way, sel->w, sel->h, True);
2039 selectmonitor(const char *arg) {
2040 Monitor *m = &monitors[arg ? atoi(arg) : (monitorat()+1) % mcount];
2042 XWarpPointer(dpy, None, root, 0, 0, 0, 0, m->wax+m->waw/2, m->way+m->wah/2);
2048 main(int argc, char *argv[]) {
2049 if(argc == 2 && !strcmp("-v", argv[1]))
2050 eprint("dwm-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, "
2051 "Jukka Salmi, Premysl Hruby, Szabolcs Nagy, Christof Musik\n");
2053 eprint("usage: dwm [-v]\n");
2055 setlocale(LC_CTYPE, "");
2056 if(!(dpy = XOpenDisplay(0)))
2057 eprint("dwm: cannot open display\n");