1 /* See LICENSE file for copyright and license details. */
11 #include <X11/Xutil.h>
12 #include <X11/keysym.h>
15 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
18 enum { ColFG, ColBG, ColLast };
23 unsigned long norm[ColLast];
24 unsigned long sel[ColLast];
34 } DC; /* draw context */
36 typedef struct Item Item;
39 Item *next; /* traverses all items */
40 Item *left, *right; /* traverses items matching current search pattern */
43 /* forward declarations */
44 void appenditem(Item *i, Item **list, Item **last);
45 void calcoffsets(void);
46 char *cistrstr(const char *s, const char *sub);
49 void drawtext(const char *text, unsigned long col[ColLast]);
50 void *emalloc(unsigned int size);
51 void eprint(const char *errstr, ...);
52 char *estrdup(const char *str);
53 unsigned long getcolor(const char *colstr);
54 Bool grabkeyboard(void);
55 void initfont(const char *fontstr);
56 void kpress(XKeyEvent * e);
57 void match(char *pattern);
60 void setup(int x, int y, int w);
61 unsigned int textnw(const char *text, unsigned int len);
62 unsigned int textw(const char *text);
69 char *normbg = NORMBGCOLOR;
70 char *normfg = NORMFGCOLOR;
72 char *selbg = SELBGCOLOR;
73 char *selfg = SELFGCOLOR;
77 unsigned int cmdw = 0;
79 unsigned int promptw = 0;
80 unsigned int numlockmask = 0;
84 Item *allitems = NULL; /* first of all items */
85 Item *item = NULL; /* first of pattern matching items */
91 int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
92 char *(*fstrstr)(const char *, const char *) = strstr;
95 appenditem(Item *i, Item **list, Item **last) {
111 w = promptw + cmdw + 2 * SPACE;
112 for(next = curr; next; next=next->right) {
113 tw = textw(next->text);
120 w = promptw + cmdw + 2 * SPACE;
121 for(prev = curr; prev && prev->left; prev=prev->left) {
122 tw = textw(prev->left->text);
132 cistrstr(const char *s, const char *sub) {
138 if((c = *sub++) != 0) {
143 if((csub = *s++) == 0)
146 while(tolower(csub) != c);
148 while(strncasecmp(s, sub, len) != 0);
159 itm = allitems->next;
160 free(allitems->text);
165 XFreeFontSet(dpy, dc.font.set);
167 XFreeFont(dpy, dc.font.xfont);
168 XFreePixmap(dpy, dc.drawable);
170 XDestroyWindow(dpy, win);
171 XUngrabKeyboard(dpy, CurrentTime);
182 drawtext(NULL, dc.norm);
186 drawtext(prompt, dc.sel);
193 drawtext(text[0] ? text : NULL, dc.norm);
197 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
199 /* determine maximum items */
200 for(i = curr; i != next; i=i->right) {
201 dc.w = textw(i->text);
204 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
209 drawtext(next ? ">" : NULL, dc.norm);
211 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
216 drawtext(const char *text, unsigned long col[ColLast]) {
218 static char buf[256];
219 unsigned int len, olen;
220 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
222 XSetForeground(dpy, dc.gc, col[ColBG]);
223 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
227 olen = len = strlen(text);
228 if(len >= sizeof buf)
229 len = sizeof buf - 1;
230 memcpy(buf, text, len);
232 h = dc.font.ascent + dc.font.descent;
233 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
235 /* shorten text if necessary */
236 while(len && (w = textnw(buf, len)) > dc.w - h)
247 return; /* too long */
248 XSetForeground(dpy, dc.gc, col[ColFG]);
250 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
252 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
256 emalloc(unsigned int size) {
257 void *res = malloc(size);
260 eprint("fatal: could not malloc() %u bytes\n", size);
265 eprint(const char *errstr, ...) {
268 va_start(ap, errstr);
269 vfprintf(stderr, errstr, ap);
275 estrdup(const char *str) {
276 void *res = strdup(str);
279 eprint("fatal: could not malloc() %u bytes\n", strlen(str));
284 getcolor(const char *colstr) {
285 Colormap cmap = DefaultColormap(dpy, screen);
288 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
289 eprint("error, cannot allocate color '%s'\n", colstr);
297 for(len = 1000; len; len--) {
298 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
307 initfont(const char *fontstr) {
308 char *def, **missing;
311 if(!fontstr || fontstr[0] == '\0')
312 eprint("error, cannot load font: '%s'\n", fontstr);
315 XFreeFontSet(dpy, dc.font.set);
316 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
318 XFreeStringList(missing);
320 XFontSetExtents *font_extents;
321 XFontStruct **xfonts;
323 dc.font.ascent = dc.font.descent = 0;
324 font_extents = XExtentsOfFontSet(dc.font.set);
325 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
326 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
327 if(dc.font.ascent < (*xfonts)->ascent)
328 dc.font.ascent = (*xfonts)->ascent;
329 if(dc.font.descent < (*xfonts)->descent)
330 dc.font.descent = (*xfonts)->descent;
336 XFreeFont(dpy, dc.font.xfont);
337 dc.font.xfont = NULL;
338 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
339 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
340 eprint("error, cannot load font: '%s'\n", fontstr);
341 dc.font.ascent = dc.font.xfont->ascent;
342 dc.font.descent = dc.font.xfont->descent;
344 dc.font.height = dc.font.ascent + dc.font.descent;
348 kpress(XKeyEvent * e) {
356 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
357 if(IsKeypadKey(ksym))
358 if(ksym == XK_KP_Enter)
360 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
361 ksym = (ksym - XK_KP_0) + XK_0;
362 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
363 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
364 || IsPrivateKeypadKey(ksym))
366 /* first check if a control mask is omitted */
367 if(e->state & ControlMask) {
369 default: /* ignore other control sequences */
396 while(i >= 0 && text[i] == ' ')
398 while(i >= 0 && text[i] != ' ')
406 if(CLEANMASK(e->state) & Mod1Mask) {
431 if(num && !iscntrl((int) buf[0])) {
434 strncat(text, buf, sizeof text);
436 strncpy(text, buf, sizeof text);
453 while(sel && sel->right)
467 if(!(sel && sel->left))
470 if(sel->right == curr) {
488 if((e->state & ShiftMask) && text)
489 fprintf(stdout, "%s", text);
491 fprintf(stdout, "%s", sel->text);
493 fprintf(stdout, "%s", text);
498 if(!(sel && sel->right))
509 strncpy(text, sel->text, sizeof text);
517 match(char *pattern) {
519 Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
523 plen = strlen(pattern);
524 item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
525 for(i = allitems; i; i = i->next)
526 if(!fstrncmp(pattern, i->text, plen + 1))
527 appenditem(i, &lexact, &exactend);
528 else if(!fstrncmp(pattern, i->text, plen))
529 appenditem(i, &lprefix, &prefixend);
530 else if(fstrstr(i->text, pattern))
531 appenditem(i, &lsubstr, &substrend);
538 itemend->right = lprefix;
539 lprefix->left = itemend;
547 itemend->right = lsubstr;
548 lsubstr->left = itemend;
553 curr = prev = next = sel = item;
560 unsigned int len = 0, max = 0;
564 while(fgets(buf, sizeof buf, stdin)) {
566 if (buf[len - 1] == '\n')
573 new = emalloc(sizeof(Item));
574 new->next = new->left = new->right = NULL;
588 /* main event loop */
589 while(running && !XNextEvent(dpy, &ev))
591 default: /* ignore all crap */
597 if(ev.xexpose.count == 0)
604 setup(int x, int y, int w) {
606 XModifierKeymap *modmap;
607 XSetWindowAttributes wa;
609 /* init modifier map */
610 modmap = XGetModifierMapping(dpy);
611 for(i = 0; i < 8; i++)
612 for(j = 0; j < modmap->max_keypermod; j++) {
613 if(modmap->modifiermap[i * modmap->max_keypermod + j]
614 == XKeysymToKeycode(dpy, XK_Num_Lock))
615 numlockmask = (1 << i);
617 XFreeModifiermap(modmap);
620 dc.norm[ColBG] = getcolor(normbg);
621 dc.norm[ColFG] = getcolor(normfg);
622 dc.sel[ColBG] = getcolor(selbg);
623 dc.sel[ColFG] = getcolor(selfg);
627 wa.override_redirect = 1;
628 wa.background_pixmap = ParentRelative;
629 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
630 mw = w ? w : DisplayWidth(dpy, screen);
631 mh = dc.font.height + 2;
634 y = DisplayHeight(dpy, screen) - mh;
638 win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
639 DefaultDepth(dpy, screen), CopyFromParent,
640 DefaultVisual(dpy, screen),
641 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
644 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
645 dc.gc = XCreateGC(dpy, root, 0, 0);
646 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
648 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
650 cmdw = textw(maxname);
654 promptw = textw(prompt);
659 XMapRaised(dpy, win);
663 textnw(const char *text, unsigned int len) {
667 XmbTextExtents(dc.font.set, text, len, NULL, &r);
670 return XTextWidth(dc.font.xfont, text, len);
674 textw(const char *text) {
675 return textnw(text, strlen(text)) + dc.font.height;
679 main(int argc, char *argv[]) {
680 int x = 0, y = 0, w = 0;
683 /* command line args */
684 for(i = 1; i < argc; i++)
685 if(!strcmp(argv[i], "-i")) {
686 fstrncmp = strncasecmp;
689 else if(!strcmp(argv[i], "-fn")) {
690 if(++i < argc) font = argv[i];
692 else if(!strcmp(argv[i], "-nb")) {
693 if(++i < argc) normbg = argv[i];
695 else if(!strcmp(argv[i], "-nf")) {
696 if(++i < argc) normfg = argv[i];
698 else if(!strcmp(argv[i], "-p")) {
699 if(++i < argc) prompt = argv[i];
701 else if(!strcmp(argv[i], "-sb")) {
702 if(++i < argc) selbg = argv[i];
704 else if(!strcmp(argv[i], "-sf")) {
705 if(++i < argc) selfg = argv[i];
707 else if(!strcmp(argv[i], "-x")) {
708 if(++i < argc) x = atoi(argv[i]);
710 else if(!strcmp(argv[i], "-y")) {
712 if(!strcmp(argv[i], "-0"))
717 else if(!strcmp(argv[i], "-w")) {
718 if(++i < argc) w = atoi(argv[i]);
720 else if(!strcmp(argv[i], "-v"))
721 eprint("dmenu-"VERSION", © 2006-2008 dmenu engineers, see LICENSE for details\n");
723 eprint("usage: dmenu [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
724 " [-p <prompt>] [-sb <color>] [-sf <color>]\n"
725 " [-x <x>] [-y <y>] [-w <w>] [-v]\n");
726 setlocale(LC_CTYPE, "");
727 dpy = XOpenDisplay(0);
729 eprint("dmenu: cannot open display\n");
730 screen = DefaultScreen(dpy);
731 root = RootWindow(dpy, screen);
733 if(isatty(STDIN_FILENO)) {
735 running = grabkeyboard();
737 else { /* prevent keypress loss */
738 running = grabkeyboard();