suckless/dwm - Unnamed repository; edit this file 'description' to name the repository.

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/* © 2006-2007 Anselm R. Garbe <garbeam at gmail dot com> * © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com> * See LICENSE file for license details. */ #include "dwm.h" #include <errno.h> #include <locale.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/select.h> #include <X11/cursorfont.h> #include <X11/keysym.h> #include <X11/Xatom.h> #include <X11/Xproto.h> /* extern */ char stext[256]; int screen, sx, sy, sw, sh, wax, way, waw, wah; unsigned int bh, ntags, numlockmask; Atom wmatom[WMLast], netatom[NetLast]; Bool *seltag; Bool selscreen = True; Client *clients = NULL; Client *sel = NULL; Client *stack = NULL; Cursor cursor[CurLast]; Display *dpy; DC dc = {0}; Window root, barwin; /* static */ static int (*xerrorxlib)(Display *, XErrorEvent *); static Bool otherwm, readin; static Bool running = True; static void cleanup(void) { close(STDIN_FILENO); while(stack) { if(stack->isbanned) XMoveWindow(dpy, stack->win, stack->x, stack->y); unmanage(stack); } if(dc.font.set) XFreeFontSet(dpy, dc.font.set); else XFreeFont(dpy, dc.font.xfont); XUngrabKey(dpy, AnyKey, AnyModifier, root); XFreePixmap(dpy, dc.drawable); XFreeGC(dpy, dc.gc); XDestroyWindow(dpy, barwin); XFreeCursor(dpy, cursor[CurNormal]); XFreeCursor(dpy, cursor[CurResize]); XFreeCursor(dpy, cursor[CurMove]); XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime); XSync(dpy, False); free(seltag); } static unsigned long initcolor(const char *colstr) { Colormap cmap = DefaultColormap(dpy, screen); XColor color; if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) eprint("error, cannot allocate color '%s'\n", colstr); return color.pixel; } static void initfont(const char *fontstr) { char *def, **missing; int i, n; missing = NULL; if(dc.font.set) XFreeFontSet(dpy, dc.font.set); dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); if(missing) { while(n--) fprintf(stderr, "missing fontset: %s\n", missing[n]); XFreeStringList(missing); } if(dc.font.set) { XFontSetExtents *font_extents; XFontStruct **xfonts; char **font_names; dc.font.ascent = dc.font.descent = 0; font_extents = XExtentsOfFontSet(dc.font.set); n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) { if(dc.font.ascent < (*xfonts)->ascent) dc.font.ascent = (*xfonts)->ascent; if(dc.font.descent < (*xfonts)->descent) dc.font.descent = (*xfonts)->descent; xfonts++; } } else { if(dc.font.xfont) XFreeFont(dpy, dc.font.xfont); dc.font.xfont = NULL; if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))) eprint("error, cannot load font: '%s'\n", fontstr); dc.font.ascent = dc.font.xfont->ascent; dc.font.descent = dc.font.xfont->descent; } dc.font.height = dc.font.ascent + dc.font.descent; } static void scan(void) { unsigned int i, num; Window *wins, d1, d2; XWindowAttributes wa; wins = NULL; if(XQueryTree(dpy, root, &d1, &d2, &wins, &num)) { for(i = 0; i < num; i++) { if(!XGetWindowAttributes(dpy, wins[i], &wa) || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1)) continue; if(wa.map_state == IsViewable) manage(wins[i], &wa); } } if(wins) XFree(wins); } static void setup(void) { int i, j; unsigned int mask; Window w; XModifierKeymap *modmap; XSetWindowAttributes wa; /* init atoms */ wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False); wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False); wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False); netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False); netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False); XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, PropModeReplace, (unsigned char *) netatom, NetLast); /* init cursors */ cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr); cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing); cursor[CurMove] = XCreateFontCursor(dpy, XC_fleur); /* init modifier map */ numlockmask = 0; modmap = XGetModifierMapping(dpy); for (i = 0; i < 8; i++) for (j = 0; j < modmap->max_keypermod; j++) { if(modmap->modifiermap[i * modmap->max_keypermod + j] == XKeysymToKeycode(dpy, XK_Num_Lock)) numlockmask = (1 << i); } XFreeModifiermap(modmap); /* select for events */ wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | EnterWindowMask | LeaveWindowMask; wa.cursor = cursor[CurNormal]; XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa); grabkeys(); compileregs(); for(ntags = 0; tags[ntags]; ntags++); seltag = emallocz(sizeof(Bool) * ntags); seltag[0] = True; /* style */ dc.norm[ColBorder] = initcolor(NORMBORDERCOLOR); dc.norm[ColBG] = initcolor(NORMBGCOLOR); dc.norm[ColFG] = initcolor(NORMFGCOLOR); dc.sel[ColBorder] = initcolor(SELBORDERCOLOR); dc.sel[ColBG] = initcolor(SELBGCOLOR); dc.sel[ColFG] = initcolor(SELFGCOLOR); initfont(FONT); /* geometry */ sx = sy = 0; sw = DisplayWidth(dpy, screen); sh = DisplayHeight(dpy, screen); initlayouts(); /* bar */ dc.h = bh = dc.font.height + 2; wa.override_redirect = 1; wa.background_pixmap = ParentRelative; wa.event_mask = ButtonPressMask | ExposureMask; barwin = XCreateWindow(dpy, root, sx, sy + (TOPBAR ? 0 : sh - bh), sw, bh, 0, DefaultDepth(dpy, screen), CopyFromParent, DefaultVisual(dpy, screen), CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); XDefineCursor(dpy, barwin, cursor[CurNormal]); XMapRaised(dpy, barwin); strcpy(stext, "dwm-"VERSION); /* windowarea */ wax = sx; way = sy + (TOPBAR ? bh : 0); wah = sh - bh; waw = sw; /* pixmap for everything */ dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen)); dc.gc = XCreateGC(dpy, root, 0, 0); XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); if(!dc.font.set) XSetFont(dpy, dc.gc, dc.font.xfont->fid); /* multihead support */ selscreen = XQueryPointer(dpy, root, &w, &w, &i, &i, &i, &i, &mask); } /* * Startup Error handler to check if another window manager * is already running. */ static int xerrorstart(Display *dsply, XErrorEvent *ee) { otherwm = True; return -1; } /* extern */ void quit(const char *arg) { readin = running = False; } /* There's no way to check accesses to destroyed windows, thus those cases are * ignored (especially on UnmapNotify's). Other types of errors call Xlibs * default error handler, which may call exit. */ int xerror(Display *dpy, XErrorEvent *ee) { if(ee->error_code == BadWindow || (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) || (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) || (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) || (ee->request_code == X_PolySegment && ee->error_code == BadDrawable) || (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) || (ee->request_code == X_GrabKey && ee->error_code == BadAccess) || (ee->request_code == X_CopyArea && ee->error_code == BadDrawable)) return 0; fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", ee->request_code, ee->error_code); return xerrorxlib(dpy, ee); /* may call exit */ } int main(int argc, char *argv[]) { char *p; int r, xfd; fd_set rd; XEvent ev; if(argc == 2 && !strncmp("-v", argv[1], 3)) eprint("dwm-"VERSION", © 2004-2007 Anselm R. Garbe, Sander van Dijk\n"); else if(argc != 1) eprint("usage: dwm [-v]\n"); setlocale(LC_CTYPE, ""); if(!(dpy = XOpenDisplay(0))) eprint("dwm: cannot open display\n"); xfd = ConnectionNumber(dpy); screen = DefaultScreen(dpy); root = RootWindow(dpy, screen); otherwm = False; XSetErrorHandler(xerrorstart); /* this causes an error if some other window manager is running */ XSelectInput(dpy, root, SubstructureRedirectMask); XSync(dpy, False); if(otherwm) eprint("dwm: another window manager is already running\n"); XSync(dpy, False); XSetErrorHandler(NULL); xerrorxlib = XSetErrorHandler(xerror); XSync(dpy, False); setup(); drawstatus(); scan(); /* main event loop, also reads status text from stdin */ XSync(dpy, False); readin = True; while(running) { FD_ZERO(&rd); if(readin) FD_SET(STDIN_FILENO, &rd); FD_SET(xfd, &rd); if(select(xfd + 1, &rd, NULL, NULL, NULL) == -1) { if(errno == EINTR) continue; eprint("select failed\n"); } if(FD_ISSET(STDIN_FILENO, &rd)) { switch(r = read(STDIN_FILENO, stext, sizeof stext - 1)) { case -1: strncpy(stext, strerror(errno), sizeof stext - 1); stext[sizeof stext - 1] = '\0'; readin = False; break; case 0: strncpy(stext, "EOF", 4); readin = False; break; default: for(stext[r] = '\0', p = stext + strlen(stext) - 1; p >= stext && *p == '\n'; *p-- = '\0'); for(; p >= stext && *p != '\n'; --p); if(p > stext) strncpy(stext, p + 1, sizeof stext); } drawstatus(); } while(XPending(dpy)) { XNextEvent(dpy, &ev); if(handler[ev.type]) (handler[ev.type])(&ev); /* call handler */ } } cleanup(); XCloseDisplay(dpy); return 0; }


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