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 */
42 /* forward declarations */
43 void calcoffsets(void);
46 void drawtext(const char *text, unsigned long col[ColLast]);
47 void *emalloc(unsigned int size);
48 void eprint(const char *errstr, ...);
49 char *estrdup(const char *str);
50 unsigned long getcolor(const char *colstr);
51 Bool grabkeyboard(void);
52 void initfont(const char *fontstr);
53 void kpress(XKeyEvent * e);
54 void match(char *pattern);
57 void setup(Bool bottom);
58 int strido(const char *text, const char *pattern);
59 unsigned int textnw(const char *text, unsigned int len);
60 unsigned int textw(const char *text);
67 char *normbg = NORMBGCOLOR;
68 char *normfg = NORMFGCOLOR;
70 char *selbg = SELBGCOLOR;
71 char *selfg = SELFGCOLOR;
75 unsigned int cmdw = 0;
77 unsigned int promptw = 0;
78 unsigned int nitem = 0;
79 unsigned int numlockmask = 0;
83 Item *allitems = NULL; /* first of all items */
84 Item *item = NULL; /* first of pattern matching items */
97 w = promptw + cmdw + 2 * SPACE;
98 for(next = curr; next; next=next->right) {
99 tw = textw(next->text);
106 w = promptw + cmdw + 2 * SPACE;
107 for(prev = curr; prev && prev->left; prev=prev->left) {
108 tw = textw(prev->left->text);
122 itm = allitems->next;
123 free(allitems->text);
128 XFreeFontSet(dpy, dc.font.set);
130 XFreeFont(dpy, dc.font.xfont);
131 XFreePixmap(dpy, dc.drawable);
133 XDestroyWindow(dpy, win);
134 XUngrabKeyboard(dpy, CurrentTime);
145 drawtext(NULL, dc.norm);
149 drawtext(prompt, dc.sel);
156 drawtext(text[0] ? text : NULL, dc.norm);
160 drawtext((curr && curr->left) ? "<" : NULL, dc.norm);
162 /* determine maximum items */
163 for(i = curr; i != next; i=i->right) {
164 dc.w = textw(i->text);
167 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
172 drawtext(next ? ">" : NULL, dc.norm);
174 XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
179 drawtext(const char *text, unsigned long col[ColLast]) {
181 static char buf[256];
182 unsigned int len, olen;
183 XRectangle r = { dc.x, dc.y, dc.w, dc.h };
185 XSetForeground(dpy, dc.gc, col[ColBG]);
186 XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
190 olen = len = strlen(text);
191 if(len >= sizeof buf)
192 len = sizeof buf - 1;
193 memcpy(buf, text, len);
195 h = dc.font.ascent + dc.font.descent;
196 y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
198 /* shorten text if necessary */
199 while(len && (w = textnw(buf, len)) > dc.w - h)
210 return; /* too long */
211 XSetForeground(dpy, dc.gc, col[ColFG]);
213 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
215 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
219 emalloc(unsigned int size) {
220 void *res = malloc(size);
223 eprint("fatal: could not malloc() %u bytes\n", size);
228 eprint(const char *errstr, ...) {
231 va_start(ap, errstr);
232 vfprintf(stderr, errstr, ap);
238 estrdup(const char *str) {
239 void *res = strdup(str);
242 eprint("fatal: could not malloc() %u bytes\n", strlen(str));
247 getcolor(const char *colstr) {
248 Colormap cmap = DefaultColormap(dpy, screen);
251 if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
252 eprint("error, cannot allocate color '%s'\n", colstr);
260 for(len = 1000; len; len--) {
261 if(XGrabKeyboard(dpy, root, True, GrabModeAsync, GrabModeAsync, CurrentTime)
270 initfont(const char *fontstr) {
271 char *def, **missing;
274 if(!fontstr || fontstr[0] == '\0')
275 eprint("error, cannot load font: '%s'\n", fontstr);
278 XFreeFontSet(dpy, dc.font.set);
279 dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
281 XFreeStringList(missing);
283 XFontSetExtents *font_extents;
284 XFontStruct **xfonts;
286 dc.font.ascent = dc.font.descent = 0;
287 font_extents = XExtentsOfFontSet(dc.font.set);
288 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
289 for(i = 0, dc.font.ascent = 0, dc.font.descent = 0; i < n; i++) {
290 if(dc.font.ascent < (*xfonts)->ascent)
291 dc.font.ascent = (*xfonts)->ascent;
292 if(dc.font.descent < (*xfonts)->descent)
293 dc.font.descent = (*xfonts)->descent;
299 XFreeFont(dpy, dc.font.xfont);
300 dc.font.xfont = NULL;
301 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))) {
302 if(!(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
303 eprint("error, cannot load font: '%s'\n", fontstr);
305 dc.font.ascent = dc.font.xfont->ascent;
306 dc.font.descent = dc.font.xfont->descent;
308 dc.font.height = dc.font.ascent + dc.font.descent;
312 kpress(XKeyEvent * e) {
320 num = XLookupString(e, buf, sizeof buf, &ksym, 0);
321 if(IsKeypadKey(ksym)) {
322 if(ksym == XK_KP_Enter) {
324 } else if(ksym >= XK_KP_0 && ksym <= XK_KP_9) {
325 ksym = (ksym - XK_KP_0) + XK_0;
328 if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
329 || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
330 || IsPrivateKeypadKey(ksym))
332 /* first check if a control mask is omitted */
333 if(e->state & ControlMask) {
335 default: /* ignore other control sequences */
362 while(i >= 0 && text[i] == ' ')
364 while(i >= 0 && text[i] != ' ')
372 if(CLEANMASK(e->state) & Mod1Mask) {
397 if(num && !iscntrl((int) buf[0])) {
400 strncat(text, buf, sizeof text);
402 strncpy(text, buf, sizeof text);
419 while(sel && sel->right)
433 if(!(sel && sel->left))
436 if(sel->right == curr) {
454 if((e->state & ShiftMask) && text)
455 fprintf(stdout, "%s", text);
457 fprintf(stdout, "%s", sel->text);
459 fprintf(stdout, "%s", text);
464 if(!(sel && sel->right))
475 strncpy(text, sel->text, sizeof text);
483 match(char *pattern) {
489 plen = strlen(pattern);
492 for(i = allitems; i; i=i->next)
493 if(!plen || !strncmp(pattern, i->text, plen)) {
503 for(i = allitems; i; i=i->next)
504 if(plen && strncmp(pattern, i->text, plen)
505 && strstr(i->text, pattern)) {
515 for(i = allitems; i; i=i->next)
516 if(plen && strncmp(pattern, i->text, plen)
517 && !strstr(i->text, pattern)
518 && strido(i->text,pattern)) {
528 curr = prev = next = sel = item;
535 unsigned int len = 0, max = 0;
539 while(fgets(buf, sizeof buf, stdin)) {
541 if (buf[len - 1] == '\n')
548 new = emalloc(sizeof(Item));
549 new->next = new->left = new->right = NULL;
563 /* main event loop */
564 while(running && !XNextEvent(dpy, &ev))
566 default: /* ignore all crap */
572 if(ev.xexpose.count == 0)
581 XModifierKeymap *modmap;
582 XSetWindowAttributes wa;
584 /* init modifier map */
585 modmap = XGetModifierMapping(dpy);
586 for(i = 0; i < 8; i++)
587 for(j = 0; j < modmap->max_keypermod; j++) {
588 if(modmap->modifiermap[i * modmap->max_keypermod + j]
589 == XKeysymToKeycode(dpy, XK_Num_Lock))
590 numlockmask = (1 << i);
592 XFreeModifiermap(modmap);
595 dc.norm[ColBG] = getcolor(normbg);
596 dc.norm[ColFG] = getcolor(normfg);
597 dc.sel[ColBG] = getcolor(selbg);
598 dc.sel[ColFG] = getcolor(selfg);
602 wa.override_redirect = 1;
603 wa.background_pixmap = ParentRelative;
604 wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
605 mw = DisplayWidth(dpy, screen);
606 mh = dc.font.height + 2;
607 win = XCreateWindow(dpy, root, 0,
608 bottom ? DisplayHeight(dpy, screen) - mh : 0, mw, mh, 0,
609 DefaultDepth(dpy, screen), CopyFromParent,
610 DefaultVisual(dpy, screen),
611 CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
614 dc.drawable = XCreatePixmap(dpy, root, mw, mh, DefaultDepth(dpy, screen));
615 dc.gc = XCreateGC(dpy, root, 0, 0);
616 XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
618 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
620 cmdw = textw(maxname);
624 promptw = textw(prompt);
629 XMapRaised(dpy, win);
633 strido(const char *text, const char *pattern) {
634 for(; *text && *pattern; text++)
635 if (*text == *pattern)
641 textnw(const char *text, unsigned int len) {
645 XmbTextExtents(dc.font.set, text, len, NULL, &r);
648 return XTextWidth(dc.font.xfont, text, len);
652 textw(const char *text) {
653 return textnw(text, strlen(text)) + dc.font.height;
657 main(int argc, char *argv[]) {
661 /* command line args */
662 for(i = 1; i < argc; i++)
663 if(!strcmp(argv[i], "-b")) {
666 else if(!strcmp(argv[i], "-fn")) {
667 if(++i < argc) font = argv[i];
669 else if(!strcmp(argv[i], "-nb")) {
670 if(++i < argc) normbg = argv[i];
672 else if(!strcmp(argv[i], "-nf")) {
673 if(++i < argc) normfg = argv[i];
675 else if(!strcmp(argv[i], "-p")) {
676 if(++i < argc) prompt = argv[i];
678 else if(!strcmp(argv[i], "-sb")) {
679 if(++i < argc) selbg = argv[i];
681 else if(!strcmp(argv[i], "-sf")) {
682 if(++i < argc) selfg = argv[i];
684 else if(!strcmp(argv[i], "-v"))
685 eprint("dmenu-"VERSION", © 2006-2007 Anselm R. Garbe, Sander van Dijk\n");
687 eprint("usage: dmenu [-b] [-fn <font>] [-nb <color>] [-nf <color>]\n"
688 " [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
689 setlocale(LC_CTYPE, "");
690 dpy = XOpenDisplay(0);
692 eprint("dmenu: cannot open display\n");
693 screen = DefaultScreen(dpy);
694 root = RootWindow(dpy, screen);
696 if(isatty(STDIN_FILENO)) {
698 running = grabkeyboard();
700 else { /* prevent keypress loss */
701 running = grabkeyboard();