1 /* See LICENSE file for copyright and license details. */
10 #include <X11/Xutil.h>
11 #include <X11/keysym.h>
14 #define CLEANMASK(mask) (mask & ~(numlockmask | LockMask))
17 enum { ColFG, ColBG, ColLast };
22 unsigned long norm[ColLast];
23 unsigned long sel[ColLast];
33 } DC; /* draw context */
35 typedef struct Item Item;
39 Item *next; /* traverses all items */
40 Item *left, *right; /* traverses items matching current search pattern */
43 /* forward declarations */
44 Item *appenditem(Item *i, 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 nitem = 0;
81 unsigned int numlockmask = 0;
85 Item *allitems = NULL; /* first of all items */
86 Item *item = NULL; /* first of pattern matching items */
92 int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
93 char *(*fstrstr)(const char *, const char *) = strstr;
96 appenditem(Item *i, Item *last) {
114 w = promptw + cmdw + 2 * SPACE;
115 for(next = curr; next; next=next->right) {
116 tw = textw(next->text);
123 w = promptw + cmdw + 2 * SPACE;
124 for(prev = curr; prev && prev->left; prev=prev->left) {
125 tw = textw(prev->left->text);
135 cistrstr(const char *s, const char *sub) {
141 if((c = *sub++) != 0) {
146 if((csub = *s++) == 0)
149 while(tolower(csub) != c);
151 while(strncasecmp(s, sub, len) != 0);
162 itm = allitems->next;
163 free(allitems->text);
168 XFreeFontSet(dpy, dc.font.set);
170 XFreeFont(dpy, dc.font.xfont);
171 XFreePixmap(dpy, dc.drawable);
173 XDestroyWindow(dpy, win);
174 XUngrabKeyboard(dpy, CurrentTime);
185 drawtext(NULL, dc.norm);
189 drawtext(prompt, dc.sel);
196 drawtext(text[0] ? text : NULL, dc.norm);
200 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
202 /* determine maximum items */
203 for(i = curr; i != next; i=i->right) {
204 dc.w = textw(i->text);
207 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
212 drawtext(next ? ">" : NULL, dc.norm);
214 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
219 drawtext(const char *text, unsigned long col[ColLast]) {
221 static char buf[256];
222 unsigned int len, olen;
223 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
225 XSetForeground(dpy, dc.gc, col[ColBG]);
226 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
230 olen = len = strlen(text);
231 if(len >= sizeof buf)
232 len = sizeof buf - 1;
233 memcpy(buf, text, len);
235 h = dc.font.ascent + dc.font.descent;
236 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
238 /* shorten text if necessary */
239 while(len && (w = textnw(buf, len)) > dc.w - h)
250 return; /* too long */
251 XSetForeground(dpy, dc.gc, col[ColFG]);
253 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
255 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
259 emalloc(unsigned int size) {
260 void *res = malloc(size);
263 eprint("fatal: could not malloc() %u bytes\n", size);
268 eprint(const char *errstr, ...) {
271 va_start(ap, errstr);
272 vfprintf(stderr, errstr, ap);
278 estrdup(const char *str) {
279 void *res = strdup(str);
282 eprint("fatal: could not malloc() %u bytes\n", strlen(str));
287 getcolor(const char *colstr) {
288 Colormap cmap = DefaultColormap(dpy, screen);
291 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
292 eprint("error, cannot allocate color '%s'\n", colstr);
300 for(len = 1000; len; len--) {
301 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
310 initfont(const char *fontstr) {
311 char *def, **missing;
314 if(!fontstr || fontstr[0] == '\0')
315 eprint("error, cannot load font: '%s'\n", fontstr);
318 XFreeFontSet(dpy, dc.font.set);
319 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
321 XFreeStringList(missing);
323 XFontSetExtents *font_extents;
324 XFontStruct **xfonts;
326 dc.font.ascent = dc.font.descent = 0;
327 font_extents = XExtentsOfFontSet(dc.font.set);
328 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
329 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
330 if(dc.font.ascent < (*xfonts)->ascent)
331 dc.font.ascent = (*xfonts)->ascent;
332 if(dc.font.descent < (*xfonts)->descent)
333 dc.font.descent = (*xfonts)->descent;
339 XFreeFont(dpy, dc.font.xfont);
340 dc.font.xfont = NULL;
341 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
342 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
343 eprint("error, cannot load font: '%s'\n", fontstr);
344 dc.font.ascent = dc.font.xfont->ascent;
345 dc.font.descent = dc.font.xfont->descent;
347 dc.font.height = dc.font.ascent + dc.font.descent;
351 kpress(XKeyEvent * e) {
359 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
360 if(IsKeypadKey(ksym)) {
361 if(ksym == XK_KP_Enter) {
363 } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
364 ksym = (ksym - XK_KP_0) + XK_0;
367 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
368 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
369 || IsPrivateKeypadKey(ksym))
371 /* first check if a control mask is omitted */
372 if(e->state & ControlMask) {
374 default: /* ignore other control sequences */
401 while(i >= 0 && text[i] == ' ')
403 while(i >= 0 && text[i] != ' ')
411 if(CLEANMASK(e->state) & Mod1Mask) {
436 if(num && !iscntrl((int) buf[0])) {
439 strncat(text, buf, sizeof text);
441 strncpy(text, buf, sizeof text);
458 while(sel && sel->right)
472 if(!(sel && sel->left))
475 if(sel->right == curr) {
493 if((e->state & ShiftMask) && text)
494 fprintf(stdout, "%s", text);
496 fprintf(stdout, "%s", sel->text);
498 fprintf(stdout, "%s", text);
503 if(!(sel && sel->right))
514 strncpy(text, sel->text, sizeof text);
522 match(char *pattern) {
528 plen = strlen(pattern);
531 for(i = allitems; i; i = i->next)
532 if((i->matched = !fstrncmp(pattern, i->text, plen)))
533 j = appenditem(i, j);
534 for(i = allitems; i; i = i->next)
535 if(!i->matched && fstrstr(i->text, pattern))
536 j = appenditem(i, j);
537 curr = prev = next = sel = item;
544 unsigned int len = 0, max = 0;
548 while(fgets(buf, sizeof buf, stdin)) {
550 if (buf[len - 1] == '\n')
557 new = emalloc(sizeof(Item));
558 new->next = new->left = new->right = NULL;
572 /* main event loop */
573 while(running && !XNextEvent(dpy, &ev))
575 default: /* ignore all crap */
581 if(ev.xexpose.count == 0)
588 setup(int x, int y, int w) {
590 XModifierKeymap *modmap;
591 XSetWindowAttributes wa;
593 /* init modifier map */
594 modmap = XGetModifierMapping(dpy);
595 for(i = 0; i < 8; i++)
596 for(j = 0; j < modmap->max_keypermod; j++) {
597 if(modmap->modifiermap[i * modmap->max_keypermod + j]
598 == XKeysymToKeycode(dpy, XK_Num_Lock))
599 numlockmask = (1 << i);
601 XFreeModifiermap(modmap);
604 dc.norm[ColBG] = getcolor(normbg);
605 dc.norm[ColFG] = getcolor(normfg);
606 dc.sel[ColBG] = getcolor(selbg);
607 dc.sel[ColFG] = getcolor(selfg);
611 wa.override_redirect = 1;
612 wa.background_pixmap = ParentRelative;
613 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
614 mw = w ? w : DisplayWidth(dpy, screen);
615 mh = dc.font.height + 2;
617 if(y == (int)(unsigned int)-1)
618 y = DisplayHeight(dpy, screen) - mh;
622 win = XCreateWindow(dpy, root, x, y, mw, mh, 0,
623 DefaultDepth(dpy, screen), CopyFromParent,
624 DefaultVisual(dpy, screen),
625 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
628 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
629 dc.gc = XCreateGC(dpy, root, 0, 0);
630 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
632 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
634 cmdw = textw(maxname);
638 promptw = textw(prompt);
643 XMapRaised(dpy, win);
647 textnw(const char *text, unsigned int len) {
651 XmbTextExtents(dc.font.set, text, len, NULL, &r);
654 return XTextWidth(dc.font.xfont, text, len);
658 textw(const char *text) {
659 return textnw(text, strlen(text)) + dc.font.height;
663 main(int argc, char *argv[]) {
664 int x = 0, y = 0, w = 0;
667 /* command line args */
668 for(i = 1; i < argc; i++)
669 if(!strcmp(argv[i], "-i")) {
670 fstrncmp = strncasecmp;
673 else if(!strcmp(argv[i], "-fn")) {
674 if(++i < argc) font = argv[i];
676 else if(!strcmp(argv[i], "-nb")) {
677 if(++i < argc) normbg = argv[i];
679 else if(!strcmp(argv[i], "-nf")) {
680 if(++i < argc) normfg = argv[i];
682 else if(!strcmp(argv[i], "-p")) {
683 if(++i < argc) prompt = argv[i];
685 else if(!strcmp(argv[i], "-sb")) {
686 if(++i < argc) selbg = argv[i];
688 else if(!strcmp(argv[i], "-sf")) {
689 if(++i < argc) selfg = argv[i];
691 else if(!strcmp(argv[i], "-x")) {
692 if(++i < argc) x = atoi(argv[i]);
694 else if(!strcmp(argv[i], "-y")) {
696 if(!strcmp(argv[i], "-0"))
697 y = (int)(unsigned int)-1;
702 else if(!strcmp(argv[i], "-w")) {
703 if(++i < argc) w = atoi(argv[i]);
705 else if(!strcmp(argv[i], "-v"))
706 eprint("dmenu-"VERSION", © 2006-2008 dmenu engineers, see LICENSE for details\n");
708 eprint("usage: dmenu [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
709 " [-p <prompt>] [-sb <color>] [-sf <color>]\n"
710 " [-x <x>] [-y <y>] [-w <w>] [-v]\n");
711 setlocale(LC_CTYPE, "");
712 dpy = XOpenDisplay(0);
714 eprint("dmenu: cannot open display\n");
715 screen = DefaultScreen(dpy);
716 root = RootWindow(dpy, screen);
718 if(isatty(STDIN_FILENO)) {
720 running = grabkeyboard();
722 else { /* prevent keypress loss */
723 running = grabkeyboard();