dmenu.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <ctype.h>
   3 #include <locale.h>
   4 #include <stdarg.h>
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8 #include <strings.h>
   9 #include <unistd.h>
  10 #include <X11/keysym.h>
  11 #include <X11/Xlib.h>
  12 #include <X11/Xutil.h>
  13 #ifdef XINERAMA
  14 #include <X11/extensions/Xinerama.h>
  15 #endif
  16
  17 /* macros */
  18 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
  19 #define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
  20 #define MIN(a, b)               ((a) < (b) ? (a) : (b))
  21 #define MAX(a, b)               ((a) > (b) ? (a) : (b))
  22
  23 /* enums */
  24 enum { ColFG, ColBG, ColLast };
  25
  26 /* typedefs */
  27 typedef struct {
  28         int x, y, w, h;
  29         unsigned long norm[ColLast];
  30         unsigned long sel[ColLast];
  31         Drawable drawable;
  32         GC gc;
  33         struct {
  34                 XFontStruct *xfont;
  35                 XFontSet set;
  36                 int ascent;
  37                 int descent;
  38                 int height;
  39         } font;
  40 } DC; /* draw context */
  41
  42 typedef struct Item Item;
  43 struct Item {
  44         char *text;
  45         Item *next;         /* traverses all items */
  46         Item *left, *right; /* traverses items matching current search pattern */
  47 };
  48
  49 /* forward declarations */
  50 static void appenditem(Item *i, Item **list, Item **last);
  51 static void calcoffsetsh(void);
  52 static void calcoffsetsv(void);
  53 static char *cistrstr(const char *s, const char *sub);
  54 static void cleanup(void);
  55 static void drawcursor(void);
  56 static void drawmenu(void);
  57 static void drawmenuh(void);
  58 static void drawmenuv(void);
  59 static void drawtext(const char *text, unsigned long col[ColLast]);
  60 static void eprint(const char *errstr, ...);
  61 static unsigned long getcolor(const char *colstr);
  62 static Bool grabkeyboard(void);
  63 static void initfont(const char *fontstr);
  64 static void kpress(XKeyEvent * e);
  65 static void match(char *pattern);
  66 static void readstdin(void);
  67 static void run(void);
  68 static void setup(Bool topbar);
  69 static int textnw(const char *text, unsigned int len);
  70 static int textw(const char *text);
  71
  72 #include "config.h"
  73
  74 /* variables */
  75 static char *maxname = NULL;
  76 static char *prompt = NULL;
  77 static char text[4096];
  78 static int cmdw = 0;
  79 static int promptw = 0;
  80 static int ret = 0;
  81 static int cursor = 0;
  82 static int screen;
  83 static unsigned int mw, mh;
  84 static unsigned int numlockmask = 0;
  85 static Bool running = True;
  86 static Display *dpy;
  87 static DC dc;
  88 static Item *allitems = NULL;  /* first of all items */
  89 static Item *item = NULL;      /* first of pattern matching items */
  90 static Item *sel = NULL;
  91 static Item *next = NULL;
  92 static Item *prev = NULL;
  93 static Item *curr = NULL;
  94 static Window parent, win;
  95 static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
  96 static char *(*fstrstr)(const char *, const char *) = strstr;
  97 static unsigned int lines = 0;
  98 static void (*calcoffsets)(void) = calcoffsetsh;
  99
 100 void
 101 appenditem(Item *i, Item **list, Item **last) {
 102         if(!(*last))
 103                 *list = i;
 104         else
 105                 (*last)->right = i;
 106         i->left = *last;
 107         i->right = NULL;
 108         *last = i;
 109 }
 110
 111 void
 112 calcoffsetsh(void) {
 113         int tw;
 114         unsigned int w;
 115
 116         if(!curr)
 117                 return;
 118         w = promptw + cmdw + 2 * spaceitem;
 119         for(next = curr; next; next=next->right) {
 120                 tw = MIN(textw(next->text), mw / 3);
 121                 w += tw;
 122                 if(w > mw)
 123                         break;
 124         }
 125         w = promptw + cmdw + 2 * spaceitem;
 126         for(prev = curr; prev && prev->left; prev=prev->left) {
 127                 tw = MIN(textw(prev->left->text), mw / 3);
 128                 w += tw;
 129                 if(w > mw)
 130                         break;
 131         }
 132 }
 133
 134 void
 135 calcoffsetsv(void) {
 136         static unsigned int h;
 137
 138         if(!curr)
 139                 return;
 140         h = (dc.font.height + 2) * (lines + 1);
 141         for(next = curr; next; next=next->right) {
 142                 h -= dc.font.height + 2;
 143                 if(h <= 0)
 144                         break;
 145         }
 146         h = (dc.font.height + 2) * (lines + 1);
 147         for(prev = curr; prev && prev->left; prev=prev->left) {
 148                 h -= dc.font.height + 2;
 149                 if(h <= 0)
 150                         break;
 151         }
 152 }
 153
 154 char *
 155 cistrstr(const char *s, const char *sub) {
 156         int c, csub;
 157         unsigned int len;
 158
 159         if(!sub)
 160                 return (char *)s;
 161         if((c = *sub++) != '\0') {
 162                 c = tolower(c);
 163                 len = strlen(sub);
 164                 do {
 165                         do {
 166                                 if((csub = *s++) == '\0')
 167                                         return NULL;
 168                         }
 169                         while(tolower(csub) != c);
 170                 }
 171                 while(strncasecmp(s, sub, len) != 0);
 172                 s--;
 173         }
 174         return (char *)s;
 175 }
 176
 177 void
 178 cleanup(void) {
 179         Item *itm;
 180
 181         while(allitems) {
 182                 itm = allitems->next;
 183                 free(allitems->text);
 184                 free(allitems);
 185                 allitems = itm;
 186         }
 187         if(dc.font.set)
 188                 XFreeFontSet(dpy, dc.font.set);
 189         else
 190                 XFreeFont(dpy, dc.font.xfont);
 191         XFreePixmap(dpy, dc.drawable);
 192         XFreeGC(dpy, dc.gc);
 193         XDestroyWindow(dpy, win);
 194         XUngrabKeyboard(dpy, CurrentTime);
 195 }
 196
 197 void
 198 drawcursor(void) {
 199         XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
 200
 201         r.x += textnw(text, cursor) + dc.font.height / 2;
 202
 203         XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
 204         XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 205 }
 206
 207 void
 208 drawmenu(void) {
 209         dc.x = 0;
 210         dc.y = 0;
 211         dc.w = mw;
 212         dc.h = mh;
 213         drawtext(NULL, dc.norm);
 214         /* print prompt? */
 215         if(prompt) {
 216                 dc.w = promptw;
 217                 drawtext(prompt, dc.sel);
 218                 dc.x += dc.w;
 219         }
 220         dc.w = mw - dc.x;
 221         /* print command */
 222         if(cmdw && item && lines == 0)
 223                 dc.w = cmdw;
 224         drawtext(text[0] ? text : NULL, dc.norm);
 225         drawcursor();
 226         if(curr) {
 227                 if(lines > 0)
 228                         drawmenuv();
 229                 else
 230                         drawmenuh();
 231         }
 232         XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
 233         XFlush(dpy);
 234 }
 235
 236 void
 237 drawmenuh(void) {
 238         Item *i;
 239
 240         dc.x += cmdw;
 241         dc.w = spaceitem;
 242         drawtext(curr->left ? "<" : NULL, dc.norm);
 243         dc.x += dc.w;
 244         for(i = curr; i != next; i=i->right) {
 245                 dc.w = MIN(textw(i->text), mw / 3);
 246                 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 247                 dc.x += dc.w;
 248         }
 249         dc.w = spaceitem;
 250         dc.x = mw - dc.w;
 251         drawtext(next ? ">" : NULL, dc.norm);
 252 }
 253
 254 void
 255 drawmenuv(void) {
 256         Item *i;
 257
 258         dc.w = mw - dc.x;
 259         dc.y += dc.font.height + 2;
 260         for(i = curr; i != next; i=i->right) {
 261                 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 262                 dc.y += dc.font.height + 2;
 263         }
 264         drawtext(NULL, dc.norm);
 265 }
 266
 267 void
 268 drawtext(const char *text, unsigned long col[ColLast]) {
 269         char buf[256];
 270         int i, x, y, h, len, olen;
 271         XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 272
 273         XSetForeground(dpy, dc.gc, col[ColBG]);
 274         XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 275         if(!text)
 276                 return;
 277         olen = strlen(text);
 278         h = dc.font.height;
 279         y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
 280         x = dc.x + (h / 2);
 281         /* shorten text if necessary */
 282         for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
 283         if(!len)
 284                 return;
 285         memcpy(buf, text, len);
 286         if(len < olen)
 287                 for(i = len; i && i > len - 3; buf[--i] = '.');
 288         XSetForeground(dpy, dc.gc, col[ColFG]);
 289         if(dc.font.set)
 290                 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 291         else
 292                 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 293 }
 294
 295 void
 296 eprint(const char *errstr, ...) {
 297         va_list ap;
 298
 299         va_start(ap, errstr);
 300         vfprintf(stderr, errstr, ap);
 301         va_end(ap);
 302         exit(EXIT_FAILURE);
 303 }
 304
 305 unsigned long
 306 getcolor(const char *colstr) {
 307         Colormap cmap = DefaultColormap(dpy, screen);
 308         XColor color;
 309
 310         if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
 311                 eprint("error, cannot allocate color '%s'\n", colstr);
 312         return color.pixel;
 313 }
 314
 315 Bool
 316 grabkeyboard(void) {
 317         unsigned int len;
 318
 319         for(len = 1000; len; len--) {
 320                 if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime)
 321                 == GrabSuccess)
 322                         break;
 323                 usleep(1000);
 324         }
 325         return len > 0;
 326 }
 327
 328 void
 329 initfont(const char *fontstr) {
 330         char *def, **missing;
 331         int i, n;
 332
 333         if(!fontstr || fontstr[0] == '\0')
 334                 eprint("error, cannot load font: '%s'\n", fontstr);
 335         missing = NULL;
 336         dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
 337         if(missing)
 338                 XFreeStringList(missing);
 339         if(dc.font.set) {
 340                 XFontStruct **xfonts;
 341                 char **font_names;
 342                 dc.font.ascent = dc.font.descent = 0;
 343                 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
 344                 for(i = 0; i < n; i++) {
 345                         dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
 346                         dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent);
 347                         xfonts++;
 348                 }
 349         }
 350         else {
 351                 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
 352                 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
 353                         eprint("error, cannot load font: '%s'\n", fontstr);
 354                 dc.font.ascent = dc.font.xfont->ascent;
 355                 dc.font.descent = dc.font.xfont->descent;
 356         }
 357         dc.font.height = dc.font.ascent + dc.font.descent;
 358 }
 359
 360 void
 361 kpress(XKeyEvent * e) {
 362         char buf[sizeof text];
 363         int i, num;
 364         unsigned int len;
 365         KeySym ksym;
 366
 367         len = strlen(text);
 368         buf[0] = '\0';
 369         num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
 370         if(IsKeypadKey(ksym)) {
 371                 if(ksym == XK_KP_Enter)
 372                         ksym = XK_Return;
 373                 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
 374                         ksym = (ksym - XK_KP_0) + XK_0;
 375         }
 376         if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
 377            || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
 378            || IsPrivateKeypadKey(ksym))
 379                 return;
 380         /* first check if a control mask is omitted */
 381         if(e->state & ControlMask) {
 382                 switch (ksym) {
 383                 default:        /* ignore other control sequences */
 384                         return;
 385                 case XK_a:
 386                 case XK_A:
 387                         ksym = XK_Home;
 388                         break;
 389                 case XK_c:
 390                 case XK_C:
 391                         ksym = XK_Escape;
 392                         break;
 393                 case XK_e:
 394                 case XK_E:
 395                         ksym = XK_End;
 396                         break;
 397                 case XK_h:
 398                 case XK_H:
 399                         ksym = XK_BackSpace;
 400                         break;
 401                 case XK_i:
 402                 case XK_I:
 403                         ksym = XK_Tab;
 404                         break;
 405                 case XK_j:
 406                 case XK_J:
 407                         ksym = XK_Return;
 408                         break;
 409                 case XK_u:
 410                 case XK_U:
 411                         memmove(text, text + cursor, sizeof text - cursor + 1);
 412                         cursor = 0;
 413                         match(text);
 414                         break;
 415                 case XK_w:
 416                 case XK_W:
 417                         if(cursor > 0) {
 418                                 i = cursor;
 419                                 while(i-- > 0 && text[i] == ' ');
 420                                 while(i-- > 0 && text[i] != ' ');
 421                                 memmove(text + i + 1, text + cursor, sizeof text - cursor + 1);
 422                                 cursor = i + 1;
 423                                 match(text);
 424                         }
 425                         break;
 426                 }
 427         }
 428         if(CLEANMASK(e->state) & Mod1Mask) {
 429                 switch(ksym) {
 430                 default: return;
 431                 case XK_h:
 432                         ksym = XK_Left;
 433                         break;
 434                 case XK_l:
 435                         ksym = XK_Right;
 436                         break;
 437                 case XK_j:
 438                         ksym = XK_Next;
 439                         break;
 440                 case XK_k:
 441                         ksym = XK_Prior;
 442                         break;
 443                 case XK_g:
 444                         ksym = XK_Home;
 445                         break;
 446                 case XK_G:
 447                         ksym = XK_End;
 448                         break;
 449                 case XK_p:
 450                         {
 451                                 FILE *fp;
 452                                 char *s;
 453                                 if(!(fp = (FILE*)popen("sselp", "r")))
 454                                         eprint("dmenu: Could not popen sselp\n");
 455                                 s = fgets(buf, sizeof buf, fp);
 456                                 pclose(fp);
 457                                 if(s == NULL)
 458                                         return;
 459                         }
 460                         num = strlen(buf);
 461                         if(num && buf[num-1] == '\n')
 462                                 buf[--num] = '\0';
 463                         break;
 464                 }
 465         }
 466         switch(ksym) {
 467         default:
 468                 num = MIN(num, sizeof text - cursor);
 469                 if(num && !iscntrl((int) buf[0])) {
 470                         memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
 471                         memcpy(text + cursor, buf, num);
 472                         cursor+=num;
 473                         match(text);
 474                 }
 475                 break;
 476         case XK_BackSpace:
 477                 if(cursor > 0) {
 478                         memmove(text + cursor - 1, text + cursor, sizeof text - cursor + 1);
 479                         cursor--;
 480                         match(text);
 481                 }
 482                 break;
 483         case XK_Delete:
 484                 memmove(text + cursor, text + cursor + 1, sizeof text - cursor);
 485                 match(text);
 486                 break;
 487         case XK_End:
 488                 if(cursor < len) {
 489                         cursor = len;
 490                         break;
 491                 }
 492                 while(next) {
 493                         sel = curr = next;
 494                         calcoffsets();
 495                 }
 496                 while(sel && sel->right)
 497                         sel = sel->right;
 498                 break;
 499         case XK_Escape:
 500                 ret = 1;
 501                 running = False;
 502                 break;
 503         case XK_Home:
 504                 if(sel == item) {
 505                         cursor = 0;
 506                         break;
 507                 }
 508                 sel = curr = item;
 509                 calcoffsets();
 510                 break;
 511         case XK_Left:
 512         case XK_Up:
 513                 if(sel && sel->left){
 514                         sel=sel->left;
 515                         if(sel->right == curr) {
 516                                 curr = prev;
 517                                 calcoffsets();
 518                         }
 519                 }
 520                 else if(cursor > 0)
 521                         cursor--;
 522                 else
 523                         return;
 524                 break;
 525         case XK_Next:
 526                 if(!next)
 527                         return;
 528                 sel = curr = next;
 529                 calcoffsets();
 530                 break;
 531         case XK_Prior:
 532                 if(!prev)
 533                         return;
 534                 sel = curr = prev;
 535                 calcoffsets();
 536                 break;
 537         case XK_Return:
 538                 if((e->state & ShiftMask) || !sel)
 539                         fprintf(stdout, "%s", text);
 540                 else
 541                         fprintf(stdout, "%s", sel->text);
 542                 fflush(stdout);
 543                 running = False;
 544                 break;
 545         case XK_Right:
 546         case XK_Down:
 547                 if(cursor < len)
 548                         cursor++;
 549                 else if(sel && sel->right) {
 550                         sel=sel->right;
 551                         if(sel == next) {
 552                                 curr = next;
 553                                 calcoffsets();
 554                         }
 555                 }
 556                 else
 557                         return;
 558                 break;
 559         case XK_Tab:
 560                 if(!sel)
 561                         return;
 562                 strncpy(text, sel->text, sizeof text);
 563                 cursor = strlen(text);
 564                 match(text);
 565                 break;
 566         }
 567         drawmenu();
 568 }
 569
 570 void
 571 match(char *pattern) {
 572         unsigned int plen;
 573         Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 574
 575         if(!pattern)
 576                 return;
 577         plen = strlen(pattern);
 578         item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 579         for(i = allitems; i; i = i->next)
 580                 if(!fstrncmp(pattern, i->text, plen + 1))
 581                         appenditem(i, &lexact, &exactend);
 582                 else if(!fstrncmp(pattern, i->text, plen))
 583                         appenditem(i, &lprefix, &prefixend);
 584                 else if(fstrstr(i->text, pattern))
 585                         appenditem(i, &lsubstr, &substrend);
 586         if(lexact) {
 587                 item = lexact;
 588                 itemend = exactend;
 589         }
 590         if(lprefix) {
 591                 if(itemend) {
 592                         itemend->right = lprefix;
 593                         lprefix->left = itemend;
 594                 }
 595                 else
 596                         item = lprefix;
 597                 itemend = prefixend;
 598         }
 599         if(lsubstr) {
 600                 if(itemend) {
 601                         itemend->right = lsubstr;
 602                         lsubstr->left = itemend;
 603                 }
 604                 else
 605                         item = lsubstr;
 606         }
 607         curr = prev = next = sel = item;
 608         calcoffsets();
 609 }
 610
 611 void
 612 readstdin(void) {
 613         char *p, buf[sizeof text];
 614         unsigned int len = 0, max = 0;
 615         Item *i, *new;
 616
 617         i = NULL;
 618         while(fgets(buf, sizeof buf, stdin)) {
 619                 len = strlen(buf);
 620                 if(buf[len-1] == '\n')
 621                         buf[--len] = '\0';
 622                 if(!(p = strdup(buf)))
 623                         eprint("fatal: could not strdup() %u bytes\n", len);
 624                 if(max < len || !maxname) {
 625                         maxname = p;
 626                         max = len;
 627                 }
 628                 if(!(new = (Item *)malloc(sizeof(Item))))
 629                         eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
 630                 new->next = new->left = new->right = NULL;
 631                 new->text = p;
 632                 if(!i)
 633                         allitems = new;
 634                 else
 635                         i->next = new;
 636                 i = new;
 637         }
 638 }
 639
 640 void
 641 run(void) {
 642         XEvent ev;
 643
 644         /* main event loop */
 645         while(running && !XNextEvent(dpy, &ev))
 646                 switch (ev.type) {
 647                 default:        /* ignore all crap */
 648                         break;
 649                 case KeyPress:
 650                         kpress(&ev.xkey);
 651                         break;
 652                 case Expose:
 653                         if(ev.xexpose.count == 0)
 654                                 drawmenu();
 655                         break;
 656                 case VisibilityNotify:
 657                         if (ev.xvisibility.state != VisibilityUnobscured)
 658                                 XRaiseWindow(dpy, win);
 659                         break;
 660                 }
 661 }
 662
 663 void
 664 setup(Bool topbar) {
 665         int i, j, x, y;
 666 #if XINERAMA
 667         int n;
 668         XineramaScreenInfo *info = NULL;
 669 #endif
 670         XModifierKeymap *modmap;
 671         XSetWindowAttributes wa;
 672         XWindowAttributes pwa;
 673
 674         /* init modifier map */
 675         modmap = XGetModifierMapping(dpy);
 676         for(i = 0; i < 8; i++)
 677                 for(j = 0; j < modmap->max_keypermod; j++) {
 678                         if(modmap->modifiermap[i * modmap->max_keypermod + j]
 679                         == XKeysymToKeycode(dpy, XK_Num_Lock))
 680                                 numlockmask = (1 << i);
 681                 }
 682         XFreeModifiermap(modmap);
 683
 684         /* style */
 685         dc.norm[ColBG] = getcolor(normbgcolor);
 686         dc.norm[ColFG] = getcolor(normfgcolor);
 687         dc.sel[ColBG] = getcolor(selbgcolor);
 688         dc.sel[ColFG] = getcolor(selfgcolor);
 689         initfont(font);
 690
 691         /* menu window */
 692         wa.override_redirect = True;
 693         wa.background_pixmap = ParentRelative;
 694         wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask;
 695
 696         /* menu window geometry */
 697         mh = (dc.font.height + 2) * (lines + 1);
 698 #if XINERAMA
 699         if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
 700                 i = 0;
 701                 if(n > 1) {
 702                         int di;
 703                         unsigned int dui;
 704                         Window dummy;
 705                         if(XQueryPointer(dpy, parent, &dummy, &dummy, &x, &y, &di, &di, &dui))
 706                                 for(i = 0; i < n; i++)
 707                                         if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
 708                                                 break;
 709                 }
 710                 x = info[i].x_org;
 711                 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
 712                 mw = info[i].width;
 713                 XFree(info);
 714         }
 715         else
 716 #endif
 717         {
 718                 XGetWindowAttributes(dpy, parent, &pwa);
 719                 x = 0;
 720                 y = topbar ? 0 : pwa.height - mh;
 721                 mw = pwa.width;
 722         }
 723
 724         win = XCreateWindow(dpy, parent, x, y, mw, mh, 0,
 725                         DefaultDepth(dpy, screen), CopyFromParent,
 726                         DefaultVisual(dpy, screen),
 727                         CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 728
 729         /* pixmap */
 730         dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen));
 731         dc.gc = XCreateGC(dpy, parent, 0, NULL);
 732         XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 733         if(!dc.font.set)
 734                 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
 735         if(maxname)
 736                 cmdw = MIN(textw(maxname), mw / 3);
 737         if(prompt)
 738                 promptw = MIN(textw(prompt), mw / 5);
 739         text[0] = '\0';
 740         match(text);
 741         XMapRaised(dpy, win);
 742 }
 743
 744 int
 745 textnw(const char *text, unsigned int len) {
 746         XRectangle r;
 747
 748         if(dc.font.set) {
 749                 XmbTextExtents(dc.font.set, text, len, NULL, &r);
 750                 return r.width;
 751         }
 752         return XTextWidth(dc.font.xfont, text, len);
 753 }
 754
 755 int
 756 textw(const char *text) {
 757         return textnw(text, strlen(text)) + dc.font.height;
 758 }
 759
 760 int
 761 main(int argc, char *argv[]) {
 762         unsigned int i;
 763         Bool topbar = True;
 764
 765         /* command line args */
 766         for(i = 1; i < argc; i++)
 767                 if(!strcmp(argv[i], "-i")) {
 768                         fstrncmp = strncasecmp;
 769                         fstrstr = cistrstr;
 770                 }
 771                 else if(!strcmp(argv[i], "-b"))
 772                         topbar = False;
 773                 else if(!strcmp(argv[i], "-e")) {
 774                         if(++i < argc) parent = atoi(argv[i]);
 775                 }
 776                 else if(!strcmp(argv[i], "-l")) {
 777                         calcoffsets = calcoffsetsv;
 778                         if(++i < argc) lines = atoi(argv[i]);
 779                 }
 780                 else if(!strcmp(argv[i], "-fn")) {
 781                         if(++i < argc) font = argv[i];
 782                 }
 783                 else if(!strcmp(argv[i], "-nb")) {
 784                         if(++i < argc) normbgcolor = argv[i];
 785                 }
 786                 else if(!strcmp(argv[i], "-nf")) {
 787                         if(++i < argc) normfgcolor = argv[i];
 788                 }
 789                 else if(!strcmp(argv[i], "-p")) {
 790                         if(++i < argc) prompt = argv[i];
 791                 }
 792                 else if(!strcmp(argv[i], "-sb")) {
 793                         if(++i < argc) selbgcolor = argv[i];
 794                 }
 795                 else if(!strcmp(argv[i], "-sf")) {
 796                         if(++i < argc) selfgcolor = argv[i];
 797                 }
 798                 else if(!strcmp(argv[i], "-v"))
 799                         eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
 800                 else
 801                         eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
 802                                "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
 803         if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
 804                 fprintf(stderr, "warning: no locale support\n");
 805         if(!(dpy = XOpenDisplay(NULL)))
 806                 eprint("dmenu: cannot open display\n");
 807         screen = DefaultScreen(dpy);
 808         if(!parent)
 809                 parent = RootWindow(dpy, screen);
 810
 811         readstdin();
 812         running = grabkeyboard();
 813
 814         setup(topbar);
 815         drawmenu();
 816         XSync(dpy, False);
 817         run();
 818         cleanup();
 819         XCloseDisplay(dpy);
 820         return ret;
 821 }