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;
37 Item *next; /* traverses all items */
38 Item *left, *right; /* traverses items matching current search pattern */
43 /* forward declarations */
44 Item *appenditem(Item *i, Item *last);
45 void calcoffsets(void);
48 void drawtext(const char *text, unsigned long col[ColLast]);
49 void *emalloc(unsigned int size);
50 void eprint(const char *errstr, ...);
51 char *estrdup(const char *str);
52 unsigned long getcolor(const char *colstr);
53 Bool grabkeyboard(void);
54 void initfont(const char *fontstr);
55 void kpress(XKeyEvent * e);
56 void match(char *pattern);
59 void setup(Bool bottom);
60 int strcaseido(const char *text, const char *pattern);
61 char *cistrstr(const char *s, const char *sub);
62 unsigned int textnw(const char *text, unsigned int len);
63 unsigned int textw(const char *text);
70 char *normbg = NORMBGCOLOR;
71 char *normfg = NORMFGCOLOR;
73 char *selbg = SELBGCOLOR;
74 char *selfg = SELFGCOLOR;
78 unsigned int cmdw = 0;
80 unsigned int promptw = 0;
81 unsigned int nitem = 0;
82 unsigned int numlockmask = 0;
83 Bool idomatch = False;
87 Item *allitems = NULL; /* first of all items */
88 Item *item = NULL; /* first of pattern matching items */
96 appenditem(Item *i, Item *last) {
115 w = promptw + cmdw + 2 * SPACE;
116 for(next = curr; next; next=next->right) {
117 tw = textw(next->text);
124 w = promptw + cmdw + 2 * SPACE;
125 for(prev = curr; prev && prev->left; prev=prev->left) {
126 tw = textw(prev->left->text);
140 itm = allitems->next;
141 free(allitems->text);
146 XFreeFontSet(dpy, dc.font.set);
148 XFreeFont(dpy, dc.font.xfont);
149 XFreePixmap(dpy, dc.drawable);
151 XDestroyWindow(dpy, win);
152 XUngrabKeyboard(dpy, CurrentTime);
163 drawtext(NULL, dc.norm);
167 drawtext(prompt, dc.sel);
174 drawtext(text[0] ? text : NULL, dc.norm);
178 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
180 /* determine maximum items */
181 for(i = curr; i != next; i=i->right) {
182 dc.w = textw(i->text);
185 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
190 drawtext(next ? ">" : NULL, dc.norm);
192 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
197 drawtext(const char *text, unsigned long col[ColLast]) {
199 static char buf[256];
200 unsigned int len, olen;
201 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
203 XSetForeground(dpy, dc.gc, col[ColBG]);
204 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
208 olen = len = strlen(text);
209 if(len >= sizeof buf)
210 len = sizeof buf - 1;
211 memcpy(buf, text, len);
213 h = dc.font.ascent + dc.font.descent;
214 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
216 /* shorten text if necessary */
217 while(len && (w = textnw(buf, len)) > dc.w - h)
228 return; /* too long */
229 XSetForeground(dpy, dc.gc, col[ColFG]);
231 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
233 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
237 emalloc(unsigned int size) {
238 void *res = malloc(size);
241 eprint("fatal: could not malloc() %u bytes\n", size);
246 eprint(const char *errstr, ...) {
249 va_start(ap, errstr);
250 vfprintf(stderr, errstr, ap);
256 estrdup(const char *str) {
257 void *res = strdup(str);
260 eprint("fatal: could not malloc() %u bytes\n", strlen(str));
265 getcolor(const char *colstr) {
266 Colormap cmap = DefaultColormap(dpy, screen);
269 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
270 eprint("error, cannot allocate color '%s'\n", colstr);
278 for(len = 1000; len; len--) {
279 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
288 initfont(const char *fontstr) {
289 char *def, **missing;
292 if(!fontstr || fontstr[0] == '\0')
293 eprint("error, cannot load font: '%s'\n", fontstr);
296 XFreeFontSet(dpy, dc.font.set);
297 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
299 XFreeStringList(missing);
301 XFontSetExtents *font_extents;
302 XFontStruct **xfonts;
304 dc.font.ascent = dc.font.descent = 0;
305 font_extents = XExtentsOfFontSet(dc.font.set);
306 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
307 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
308 if(dc.font.ascent < (*xfonts)->ascent)
309 dc.font.ascent = (*xfonts)->ascent;
310 if(dc.font.descent < (*xfonts)->descent)
311 dc.font.descent = (*xfonts)->descent;
317 XFreeFont(dpy, dc.font.xfont);
318 dc.font.xfont = NULL;
319 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
320 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
321 eprint("error, cannot load font: '%s'\n", fontstr);
322 dc.font.ascent = dc.font.xfont->ascent;
323 dc.font.descent = dc.font.xfont->descent;
325 dc.font.height = dc.font.ascent + dc.font.descent;
329 kpress(XKeyEvent * e) {
337 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
338 if(IsKeypadKey(ksym)) {
339 if(ksym == XK_KP_Enter) {
341 } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
342 ksym = (ksym - XK_KP_0) + XK_0;
345 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
346 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
347 || IsPrivateKeypadKey(ksym))
349 /* first check if a control mask is omitted */
350 if(e->state & ControlMask) {
352 default: /* ignore other control sequences */
379 while(i >= 0 && text[i] == ' ')
381 while(i >= 0 && text[i] != ' ')
389 if(CLEANMASK(e->state) & Mod1Mask) {
414 if(num && !iscntrl((int) buf[0])) {
417 strncat(text, buf, sizeof text);
419 strncpy(text, buf, sizeof text);
436 while(sel && sel->right)
450 if(!(sel && sel->left))
453 if(sel->right == curr) {
471 if((e->state & ShiftMask) && text)
472 fprintf(stdout, "%s", text);
474 fprintf(stdout, "%s", sel->text);
476 fprintf(stdout, "%s", text);
481 if(!(sel && sel->right))
492 strncpy(text, sel->text, sizeof text);
500 match(char *pattern) {
506 plen = strlen(pattern);
509 for(i = allitems; i; i=i->next)
511 for(i = allitems; i; i = i->next)
512 if(!i->matched && !strncasecmp(pattern, i->text, plen))
513 j = appenditem(i, j);
514 for(i = allitems; i; i = i->next)
515 if(!i->matched && cistrstr(i->text, pattern))
516 j = appenditem(i, j);
518 for(i = allitems; i; i = i->next)
519 if(!i->matched && strcaseido(i->text, pattern))
520 j = appenditem(i, j);
521 curr = prev = next = sel = item;
528 unsigned int len = 0, max = 0;
532 while(fgets(buf, sizeof buf, stdin)) {
534 if (buf[len - 1] == '\n')
541 new = emalloc(sizeof(Item));
542 new->next = new->left = new->right = NULL;
556 /* main event loop */
557 while(running && !XNextEvent(dpy, &ev))
559 default: /* ignore all crap */
565 if(ev.xexpose.count == 0)
574 XModifierKeymap *modmap;
575 XSetWindowAttributes wa;
577 /* init modifier map */
578 modmap = XGetModifierMapping(dpy);
579 for(i = 0; i < 8; i++)
580 for(j = 0; j < modmap->max_keypermod; j++) {
581 if(modmap->modifiermap[i * modmap->max_keypermod + j]
582 == XKeysymToKeycode(dpy, XK_Num_Lock))
583 numlockmask = (1 << i);
585 XFreeModifiermap(modmap);
588 dc.norm[ColBG] = getcolor(normbg);
589 dc.norm[ColFG] = getcolor(normfg);
590 dc.sel[ColBG] = getcolor(selbg);
591 dc.sel[ColFG] = getcolor(selfg);
595 wa.override_redirect = 1;
596 wa.background_pixmap = ParentRelative;
597 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
598 mw = DisplayWidth(dpy, screen);
599 mh = dc.font.height + 2;
600 win = XCreateWindow(dpy, root, 0,
601 bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
602 DefaultDepth(dpy, screen), CopyFromParent,
603 DefaultVisual(dpy, screen),
604 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
607 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
608 dc.gc = XCreateGC(dpy, root, 0, 0);
609 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
611 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
613 cmdw = textw(maxname);
617 promptw = textw(prompt);
622 XMapRaised(dpy, win);
626 strcaseido(const char *text, const char *pattern) {
627 for(; *text && *pattern; text++)
628 if(tolower((int)*text) == tolower((int)*pattern))
634 cistrstr(const char *s, const char *sub) {
640 if((c = *sub++) != 0) {
645 if((csub = *s++) == 0)
648 while(tolower(csub) != c);
650 while(strncasecmp(s, sub, len) != 0);
657 textnw(const char *text, unsigned int len) {
661 XmbTextExtents(dc.font.set, text, len, NULL, &r);
664 return XTextWidth(dc.font.xfont, text, len);
668 textw(const char *text) {
669 return textnw(text, strlen(text)) + dc.font.height;
673 main(int argc, char *argv[]) {
677 /* command line args */
678 for(i = 1; i < argc; i++)
679 if(!strcmp(argv[i], "-b")) {
682 else if(!strcmp(argv[i], "-i"))
684 else if(!strcmp(argv[i], "-fn")) {
685 if(++i < argc) font = argv[i];
687 else if(!strcmp(argv[i], "-nb")) {
688 if(++i < argc) normbg = argv[i];
690 else if(!strcmp(argv[i], "-nf")) {
691 if(++i < argc) normfg = argv[i];
693 else if(!strcmp(argv[i], "-p")) {
694 if(++i < argc) prompt = argv[i];
696 else if(!strcmp(argv[i], "-sb")) {
697 if(++i < argc) selbg = argv[i];
699 else if(!strcmp(argv[i], "-sf")) {
700 if(++i < argc) selfg = argv[i];
702 else if(!strcmp(argv[i], "-v"))
703 eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk, Michał Janeczek\n");
705 eprint("usage: dmenu [-b] [-i] [-fn <font>] [-nb <color>] [-nf <color>]\n"
706 " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
707 setlocale(LC_CTYPE, "");
708 dpy = XOpenDisplay(0);
710 eprint("dmenu: cannot open display\n");
711 screen = DefaultScreen(dpy);
712 root = RootWindow(dpy, screen);
714 if(isatty(STDIN_FILENO)) {
716 running = grabkeyboard();
718 else { /* prevent keypress loss */
719 running = grabkeyboard();