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 #define IS_UTF8_1ST_CHAR(c)     ((((c) & 0xc0) == 0xc0) || !((c) & 0x80))
  23
  24 /* enums */
  25 enum { ColFG, ColBG, ColLast };
  26
  27 /* typedefs */
  28 typedef struct {
  29         int x, y, w, h;
  30         unsigned long norm[ColLast];
  31         unsigned long sel[ColLast];
  32         Drawable drawable;
  33         GC gc;
  34         struct {
  35                 XFontStruct *xfont;
  36                 XFontSet set;
  37                 int ascent;
  38                 int descent;
  39                 int height;
  40         } font;
  41 } DC; /* draw context */
  42
  43 typedef struct Item Item;
  44 struct Item {
  45         char *text;
  46         Item *next;         /* traverses all items */
  47         Item *left, *right; /* traverses items matching current search pattern */
  48 };
  49
  50 /* forward declarations */
  51 static void appenditem(Item *i, Item **list, Item **last);
  52 static void calcoffsetsh(void);
  53 static void calcoffsetsv(void);
  54 static char *cistrstr(const char *s, const char *sub);
  55 static void cleanup(void);
  56 static void drawcursor(void);
  57 static void drawmenu(void);
  58 static void drawmenuh(void);
  59 static void drawmenuv(void);
  60 static void drawtext(const char *text, unsigned long col[ColLast]);
  61 static void eprint(const char *errstr, ...);
  62 static unsigned long getcolor(const char *colstr);
  63 static Bool grabkeyboard(void);
  64 static void initfont(const char *fontstr);
  65 static void kpress(XKeyEvent * e);
  66 static void match(char *pattern);
  67 static void readstdin(void);
  68 static void run(void);
  69 static void setup(Bool topbar);
  70 static int textnw(const char *text, unsigned int len);
  71 static int textw(const char *text);
  72
  73 #include "config.h"
  74
  75 /* variables */
  76 static char *maxname = NULL;
  77 static char *prompt = NULL;
  78 static char text[4096];
  79 static int cmdw = 0;
  80 static int promptw = 0;
  81 static int ret = 0;
  82 static int cursor = 0;
  83 static int screen;
  84 static unsigned int mw, mh;
  85 static unsigned int numlockmask = 0;
  86 static Bool running = True;
  87 static Display *dpy;
  88 static DC dc;
  89 static Item *allitems = NULL;  /* first of all items */
  90 static Item *item = NULL;      /* first of pattern matching items */
  91 static Item *sel = NULL;
  92 static Item *next = NULL;
  93 static Item *prev = NULL;
  94 static Item *curr = NULL;
  95 static Window parent, win;
  96 static int (*fstrncmp)(const char *, const char *, size_t n) = strncmp;
  97 static char *(*fstrstr)(const char *, const char *) = strstr;
  98 static unsigned int lines = 0;
  99 static void (*calcoffsets)(void) = calcoffsetsh;
 100
 101 void
 102 appenditem(Item *i, Item **list, Item **last) {
 103         if(!(*last))
 104                 *list = i;
 105         else
 106                 (*last)->right = i;
 107         i->left = *last;
 108         i->right = NULL;
 109         *last = i;
 110 }
 111
 112 void
 113 calcoffsetsh(void) {
 114         int tw;
 115         unsigned int w;
 116
 117         if(!curr)
 118                 return;
 119         w = promptw + cmdw + 2 * spaceitem;
 120         for(next = curr; next; next=next->right) {
 121                 tw = MIN(textw(next->text), mw / 3);
 122                 w += tw;
 123                 if(w > mw)
 124                         break;
 125         }
 126         w = promptw + cmdw + 2 * spaceitem;
 127         for(prev = curr; prev && prev->left; prev=prev->left) {
 128                 tw = MIN(textw(prev->left->text), mw / 3);
 129                 w += tw;
 130                 if(w > mw)
 131                         break;
 132         }
 133 }
 134
 135 void
 136 calcoffsetsv(void) {
 137         static unsigned int h;
 138
 139         if(!curr)
 140                 return;
 141         h = (dc.font.height + 2) * (lines + 1);
 142         for(next = curr; next; next=next->right) {
 143                 h -= dc.font.height + 2;
 144                 if(h <= 0)
 145                         break;
 146         }
 147         h = (dc.font.height + 2) * (lines + 1);
 148         for(prev = curr; prev && prev->left; prev=prev->left) {
 149                 h -= dc.font.height + 2;
 150                 if(h <= 0)
 151                         break;
 152         }
 153 }
 154
 155 char *
 156 cistrstr(const char *s, const char *sub) {
 157         int c, csub;
 158         unsigned int len;
 159
 160         if(!sub)
 161                 return (char *)s;
 162         if((c = *sub++) != '\0') {
 163                 c = tolower(c);
 164                 len = strlen(sub);
 165                 do {
 166                         do {
 167                                 if((csub = *s++) == '\0')
 168                                         return NULL;
 169                         }
 170                         while(tolower(csub) != c);
 171                 }
 172                 while(strncasecmp(s, sub, len) != 0);
 173                 s--;
 174         }
 175         return (char *)s;
 176 }
 177
 178 void
 179 cleanup(void) {
 180         Item *itm;
 181
 182         while(allitems) {
 183                 itm = allitems->next;
 184                 free(allitems->text);
 185                 free(allitems);
 186                 allitems = itm;
 187         }
 188         if(dc.font.set)
 189                 XFreeFontSet(dpy, dc.font.set);
 190         else
 191                 XFreeFont(dpy, dc.font.xfont);
 192         XFreePixmap(dpy, dc.drawable);
 193         XFreeGC(dpy, dc.gc);
 194         XDestroyWindow(dpy, win);
 195         XUngrabKeyboard(dpy, CurrentTime);
 196 }
 197
 198 void
 199 drawcursor(void) {
 200         XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
 201
 202         r.x += textnw(text, cursor) + dc.font.height / 2;
 203
 204         XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
 205         XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 206 }
 207
 208 void
 209 drawmenu(void) {
 210         dc.x = 0;
 211         dc.y = 0;
 212         dc.w = mw;
 213         dc.h = mh;
 214         drawtext(NULL, dc.norm);
 215         /* print prompt? */
 216         if(prompt) {
 217                 dc.w = promptw;
 218                 drawtext(prompt, dc.sel);
 219                 dc.x += dc.w;
 220         }
 221         dc.w = mw - dc.x;
 222         /* print command */
 223         if(cmdw && item && lines == 0)
 224                 dc.w = cmdw;
 225         drawtext(text[0] ? text : NULL, dc.norm);
 226         drawcursor();
 227         if(curr) {
 228                 if(lines > 0)
 229                         drawmenuv();
 230                 else
 231                         drawmenuh();
 232         }
 233         XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
 234         XFlush(dpy);
 235 }
 236
 237 void
 238 drawmenuh(void) {
 239         Item *i;
 240
 241         dc.x += cmdw;
 242         dc.w = spaceitem;
 243         drawtext(curr->left ? "<" : NULL, dc.norm);
 244         dc.x += dc.w;
 245         for(i = curr; i != next; i=i->right) {
 246                 dc.w = MIN(textw(i->text), mw / 3);
 247                 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 248                 dc.x += dc.w;
 249         }
 250         dc.w = spaceitem;
 251         dc.x = mw - dc.w;
 252         drawtext(next ? ">" : NULL, dc.norm);
 253 }
 254
 255 void
 256 drawmenuv(void) {
 257         Item *i;
 258
 259         dc.w = mw - dc.x;
 260         dc.y += dc.font.height + 2;
 261         for(i = curr; i != next; i=i->right) {
 262                 drawtext(i->text, (sel == i) ? dc.sel : dc.norm);
 263                 dc.y += dc.font.height + 2;
 264         }
 265         drawtext(NULL, dc.norm);
 266 }
 267
 268 void
 269 drawtext(const char *text, unsigned long col[ColLast]) {
 270         char buf[256];
 271         int i, x, y, h, len, olen;
 272         XRectangle r = { dc.x, dc.y, dc.w, dc.h };
 273
 274         XSetForeground(dpy, dc.gc, col[ColBG]);
 275         XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
 276         if(!text)
 277                 return;
 278         olen = strlen(text);
 279         h = dc.font.height;
 280         y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent;
 281         x = dc.x + (h / 2);
 282         /* shorten text if necessary */
 283         for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--);
 284         if(!len)
 285                 return;
 286         memcpy(buf, text, len);
 287         if(len < olen)
 288                 for(i = len; i && i > len - 3; buf[--i] = '.');
 289         XSetForeground(dpy, dc.gc, col[ColFG]);
 290         if(dc.font.set)
 291                 XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
 292         else
 293                 XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
 294 }
 295
 296 void
 297 eprint(const char *errstr, ...) {
 298         va_list ap;
 299
 300         va_start(ap, errstr);
 301         vfprintf(stderr, errstr, ap);
 302         va_end(ap);
 303         exit(EXIT_FAILURE);
 304 }
 305
 306 unsigned long
 307 getcolor(const char *colstr) {
 308         Colormap cmap = DefaultColormap(dpy, screen);
 309         XColor color;
 310
 311         if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
 312                 eprint("error, cannot allocate color '%s'\n", colstr);
 313         return color.pixel;
 314 }
 315
 316 Bool
 317 grabkeyboard(void) {
 318         unsigned int len;
 319
 320         for(len = 1000; len; len--) {
 321                 if(XGrabKeyboard(dpy, parent, True, GrabModeAsync, GrabModeAsync, CurrentTime)
 322                 == GrabSuccess)
 323                         break;
 324                 usleep(1000);
 325         }
 326         return len > 0;
 327 }
 328
 329 void
 330 initfont(const char *fontstr) {
 331         char *def, **missing;
 332         int i, n;
 333
 334         if(!fontstr || fontstr[0] == '\0')
 335                 eprint("error, cannot load font: '%s'\n", fontstr);
 336         missing = NULL;
 337         dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def);
 338         if(missing)
 339                 XFreeStringList(missing);
 340         if(dc.font.set) {
 341                 XFontStruct **xfonts;
 342                 char **font_names;
 343                 dc.font.ascent = dc.font.descent = 0;
 344                 n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names);
 345                 for(i = 0; i < n; i++) {
 346                         dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent);
 347                         dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent);
 348                         xfonts++;
 349                 }
 350         }
 351         else {
 352                 if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr))
 353                 && !(dc.font.xfont = XLoadQueryFont(dpy, "fixed")))
 354                         eprint("error, cannot load font: '%s'\n", fontstr);
 355                 dc.font.ascent = dc.font.xfont->ascent;
 356                 dc.font.descent = dc.font.xfont->descent;
 357         }
 358         dc.font.height = dc.font.ascent + dc.font.descent;
 359 }
 360
 361 void
 362 kpress(XKeyEvent * e) {
 363         char buf[sizeof text];
 364         int i, num, off;
 365         unsigned int len;
 366         KeySym ksym;
 367
 368         len = strlen(text);
 369         buf[0] = '\0';
 370         num = XLookupString(e, buf, sizeof buf, &ksym, NULL);
 371         if(IsKeypadKey(ksym)) {
 372                 if(ksym == XK_KP_Enter)
 373                         ksym = XK_Return;
 374                 else if(ksym >= XK_KP_0 && ksym <= XK_KP_9)
 375                         ksym = (ksym - XK_KP_0) + XK_0;
 376         }
 377         if(IsFunctionKey(ksym) || IsKeypadKey(ksym)
 378            || IsMiscFunctionKey(ksym) || IsPFKey(ksym)
 379            || IsPrivateKeypadKey(ksym))
 380                 return;
 381         /* first check if a control mask is omitted */
 382         if(e->state & ControlMask) {
 383                 switch (ksym) {
 384                 default:        /* ignore other control sequences */
 385                         return;
 386                 case XK_a:
 387                 case XK_A:
 388                         ksym = XK_Home;
 389                         break;
 390                 case XK_c:
 391                 case XK_C:
 392                         ksym = XK_Escape;
 393                         break;
 394                 case XK_e:
 395                 case XK_E:
 396                         ksym = XK_End;
 397                         break;
 398                 case XK_h:
 399                 case XK_H:
 400                         ksym = XK_BackSpace;
 401                         break;
 402                 case XK_i:
 403                 case XK_I:
 404                         ksym = XK_Tab;
 405                         break;
 406                 case XK_j:
 407                 case XK_J:
 408                         ksym = XK_Return;
 409                         break;
 410                 case XK_u:
 411                 case XK_U:
 412                         memmove(text, text + cursor, sizeof text - cursor + 1);
 413                         cursor = 0;
 414                         match(text);
 415                         break;
 416                 case XK_w:
 417                 case XK_W:
 418                         if(cursor > 0) {
 419                                 i = cursor;
 420                                 while(i-- > 0 && text[i] == ' ');
 421                                 while(i-- > 0 && text[i] != ' ');
 422                                 memmove(text + i + 1, text + cursor, sizeof text - cursor + 1);
 423                                 cursor = i + 1;
 424                                 match(text);
 425                         }
 426                         break;
 427                 }
 428         }
 429         if(CLEANMASK(e->state) & Mod1Mask) {
 430                 switch(ksym) {
 431                 default: return;
 432                 case XK_h:
 433                         ksym = XK_Left;
 434                         break;
 435                 case XK_l:
 436                         ksym = XK_Right;
 437                         break;
 438                 case XK_j:
 439                         ksym = XK_Next;
 440                         break;
 441                 case XK_k:
 442                         ksym = XK_Prior;
 443                         break;
 444                 case XK_g:
 445                         ksym = XK_Home;
 446                         break;
 447                 case XK_G:
 448                         ksym = XK_End;
 449                         break;
 450                 case XK_p:
 451                         {
 452                                 FILE *fp;
 453                                 char *s;
 454                                 if(!(fp = (FILE*)popen("sselp", "r")))
 455                                         eprint("dmenu: Could not popen sselp\n");
 456                                 s = fgets(buf, sizeof buf, fp);
 457                                 pclose(fp);
 458                                 if(s == NULL)
 459                                         return;
 460                         }
 461                         num = strlen(buf);
 462                         if(num && buf[num-1] == '\n')
 463                                 buf[--num] = '\0';
 464                         break;
 465                 }
 466         }
 467         switch(ksym) {
 468         default:
 469                 num = MIN(num, sizeof text - cursor);
 470                 if(num && !iscntrl((int) buf[0])) {
 471                         memmove(text + cursor + num, text + cursor, sizeof text - cursor - num);
 472                         memcpy(text + cursor, buf, num);
 473                         cursor+=num;
 474                         match(text);
 475                 }
 476                 break;
 477         case XK_BackSpace:
 478                 if(cursor > 0) {
 479                         off = 1;
 480                         while(cursor > off && !IS_UTF8_1ST_CHAR(text[cursor - off]))
 481                                 off++;
 482                         memmove(text + cursor - off, text + cursor, sizeof text - cursor + off);
 483                         cursor -= off;
 484                         match(text);
 485                 }
 486                 break;
 487         case XK_Delete:
 488                 off = 1;
 489                 while(cursor + off < sizeof text - 1 && !IS_UTF8_1ST_CHAR(text[cursor + off]))
 490                         off++;
 491                 memmove(text + cursor, text + cursor + off, sizeof text - cursor);
 492                 match(text);
 493                 break;
 494         case XK_End:
 495                 if(cursor < len) {
 496                         cursor = len;
 497                         break;
 498                 }
 499                 while(next) {
 500                         sel = curr = next;
 501                         calcoffsets();
 502                 }
 503                 while(sel && sel->right)
 504                         sel = sel->right;
 505                 break;
 506         case XK_Escape:
 507                 ret = 1;
 508                 running = False;
 509                 break;
 510         case XK_Home:
 511                 if(sel == item) {
 512                         cursor = 0;
 513                         break;
 514                 }
 515                 sel = curr = item;
 516                 calcoffsets();
 517                 break;
 518         case XK_Left:
 519         case XK_Up:
 520                 if(sel && sel->left){
 521                         sel=sel->left;
 522                         if(sel->right == curr) {
 523                                 curr = prev;
 524                                 calcoffsets();
 525                         }
 526                 }
 527                 else if(cursor > 0) {
 528                         do {
 529                                 cursor--;
 530                         } while(cursor > 0 && !IS_UTF8_1ST_CHAR(text[cursor]));
 531                 } else
 532                         return;
 533                 break;
 534         case XK_Next:
 535                 if(!next)
 536                         return;
 537                 sel = curr = next;
 538                 calcoffsets();
 539                 break;
 540         case XK_Prior:
 541                 if(!prev)
 542                         return;
 543                 sel = curr = prev;
 544                 calcoffsets();
 545                 break;
 546         case XK_Return:
 547                 if((e->state & ShiftMask) || !sel)
 548                         fprintf(stdout, "%s", text);
 549                 else
 550                         fprintf(stdout, "%s", sel->text);
 551                 fflush(stdout);
 552                 running = False;
 553                 break;
 554         case XK_Right:
 555         case XK_Down:
 556                 if(cursor < len) {
 557                         do {
 558                                 cursor++;
 559                         } while(cursor < len && !IS_UTF8_1ST_CHAR(text[cursor]));
 560                 } else if(sel && sel->right) {
 561                         sel=sel->right;
 562                         if(sel == next) {
 563                                 curr = next;
 564                                 calcoffsets();
 565                         }
 566                 }
 567                 else
 568                         return;
 569                 break;
 570         case XK_Tab:
 571                 if(!sel)
 572                         return;
 573                 strncpy(text, sel->text, sizeof text);
 574                 cursor = strlen(text);
 575                 match(text);
 576                 break;
 577         }
 578         drawmenu();
 579 }
 580
 581 void
 582 match(char *pattern) {
 583         unsigned int plen;
 584         Item *i, *itemend, *lexact, *lprefix, *lsubstr, *exactend, *prefixend, *substrend;
 585
 586         if(!pattern)
 587                 return;
 588         plen = strlen(pattern);
 589         item = lexact = lprefix = lsubstr = itemend = exactend = prefixend = substrend = NULL;
 590         for(i = allitems; i; i = i->next)
 591                 if(!fstrncmp(pattern, i->text, plen + 1))
 592                         appenditem(i, &lexact, &exactend);
 593                 else if(!fstrncmp(pattern, i->text, plen))
 594                         appenditem(i, &lprefix, &prefixend);
 595                 else if(fstrstr(i->text, pattern))
 596                         appenditem(i, &lsubstr, &substrend);
 597         if(lexact) {
 598                 item = lexact;
 599                 itemend = exactend;
 600         }
 601         if(lprefix) {
 602                 if(itemend) {
 603                         itemend->right = lprefix;
 604                         lprefix->left = itemend;
 605                 }
 606                 else
 607                         item = lprefix;
 608                 itemend = prefixend;
 609         }
 610         if(lsubstr) {
 611                 if(itemend) {
 612                         itemend->right = lsubstr;
 613                         lsubstr->left = itemend;
 614                 }
 615                 else
 616                         item = lsubstr;
 617         }
 618         curr = prev = next = sel = item;
 619         calcoffsets();
 620 }
 621
 622 void
 623 readstdin(void) {
 624         char *p, buf[sizeof text];
 625         unsigned int len = 0, max = 0;
 626         Item *i, *new;
 627
 628         i = NULL;
 629         while(fgets(buf, sizeof buf, stdin)) {
 630                 len = strlen(buf);
 631                 if(buf[len-1] == '\n')
 632                         buf[--len] = '\0';
 633                 if(!(p = strdup(buf)))
 634                         eprint("fatal: could not strdup() %u bytes\n", len);
 635                 if(max < len || !maxname) {
 636                         maxname = p;
 637                         max = len;
 638                 }
 639                 if(!(new = (Item *)malloc(sizeof(Item))))
 640                         eprint("fatal: could not malloc() %u bytes\n", sizeof(Item));
 641                 new->next = new->left = new->right = NULL;
 642                 new->text = p;
 643                 if(!i)
 644                         allitems = new;
 645                 else
 646                         i->next = new;
 647                 i = new;
 648         }
 649 }
 650
 651 void
 652 run(void) {
 653         XEvent ev;
 654
 655         /* main event loop */
 656         while(running && !XNextEvent(dpy, &ev))
 657                 switch (ev.type) {
 658                 default:        /* ignore all crap */
 659                         break;
 660                 case KeyPress:
 661                         kpress(&ev.xkey);
 662                         break;
 663                 case Expose:
 664                         if(ev.xexpose.count == 0)
 665                                 drawmenu();
 666                         break;
 667                 case VisibilityNotify:
 668                         if (ev.xvisibility.state != VisibilityUnobscured)
 669                                 XRaiseWindow(dpy, win);
 670                         break;
 671                 }
 672 }
 673
 674 void
 675 setup(Bool topbar) {
 676         int i, j, x, y;
 677 #if XINERAMA
 678         int n;
 679         XineramaScreenInfo *info = NULL;
 680 #endif
 681         XModifierKeymap *modmap;
 682         XSetWindowAttributes wa;
 683         XWindowAttributes pwa;
 684
 685         /* init modifier map */
 686         modmap = XGetModifierMapping(dpy);
 687         for(i = 0; i < 8; i++)
 688                 for(j = 0; j < modmap->max_keypermod; j++) {
 689                         if(modmap->modifiermap[i * modmap->max_keypermod + j]
 690                         == XKeysymToKeycode(dpy, XK_Num_Lock))
 691                                 numlockmask = (1 << i);
 692                 }
 693         XFreeModifiermap(modmap);
 694
 695         /* style */
 696         dc.norm[ColBG] = getcolor(normbgcolor);
 697         dc.norm[ColFG] = getcolor(normfgcolor);
 698         dc.sel[ColBG] = getcolor(selbgcolor);
 699         dc.sel[ColFG] = getcolor(selfgcolor);
 700         initfont(font);
 701
 702         /* menu window */
 703         wa.override_redirect = True;
 704         wa.background_pixmap = ParentRelative;
 705         wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask;
 706
 707         /* menu window geometry */
 708         mh = (dc.font.height + 2) * (lines + 1);
 709 #if XINERAMA
 710         if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
 711                 i = 0;
 712                 if(n > 1) {
 713                         int di;
 714                         unsigned int dui;
 715                         Window dummy;
 716                         if(XQueryPointer(dpy, parent, &dummy, &dummy, &x, &y, &di, &di, &dui))
 717                                 for(i = 0; i < n; i++)
 718                                         if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
 719                                                 break;
 720                 }
 721                 x = info[i].x_org;
 722                 y = topbar ? info[i].y_org : info[i].y_org + info[i].height - mh;
 723                 mw = info[i].width;
 724                 XFree(info);
 725         }
 726         else
 727 #endif
 728         {
 729                 XGetWindowAttributes(dpy, parent, &pwa);
 730                 x = 0;
 731                 y = topbar ? 0 : pwa.height - mh;
 732                 mw = pwa.width;
 733         }
 734
 735         win = XCreateWindow(dpy, parent, x, y, mw, mh, 0,
 736                         DefaultDepth(dpy, screen), CopyFromParent,
 737                         DefaultVisual(dpy, screen),
 738                         CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
 739
 740         /* pixmap */
 741         dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen));
 742         dc.gc = XCreateGC(dpy, parent, 0, NULL);
 743         XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
 744         if(!dc.font.set)
 745                 XSetFont(dpy, dc.gc, dc.font.xfont->fid);
 746         if(maxname)
 747                 cmdw = MIN(textw(maxname), mw / 3);
 748         if(prompt)
 749                 promptw = MIN(textw(prompt), mw / 5);
 750         text[0] = '\0';
 751         match(text);
 752         XMapRaised(dpy, win);
 753 }
 754
 755 int
 756 textnw(const char *text, unsigned int len) {
 757         XRectangle r;
 758
 759         if(dc.font.set) {
 760                 XmbTextExtents(dc.font.set, text, len, NULL, &r);
 761                 return r.width;
 762         }
 763         return XTextWidth(dc.font.xfont, text, len);
 764 }
 765
 766 int
 767 textw(const char *text) {
 768         return textnw(text, strlen(text)) + dc.font.height;
 769 }
 770
 771 int
 772 main(int argc, char *argv[]) {
 773         unsigned int i;
 774         Bool topbar = True;
 775
 776         /* command line args */
 777         for(i = 1; i < argc; i++)
 778                 if(!strcmp(argv[i], "-i")) {
 779                         fstrncmp = strncasecmp;
 780                         fstrstr = cistrstr;
 781                 }
 782                 else if(!strcmp(argv[i], "-b"))
 783                         topbar = False;
 784                 else if(!strcmp(argv[i], "-e")) {
 785                         if(++i < argc) parent = atoi(argv[i]);
 786                 }
 787                 else if(!strcmp(argv[i], "-l")) {
 788                         calcoffsets = calcoffsetsv;
 789                         if(++i < argc) lines = atoi(argv[i]);
 790                 }
 791                 else if(!strcmp(argv[i], "-fn")) {
 792                         if(++i < argc) font = argv[i];
 793                 }
 794                 else if(!strcmp(argv[i], "-nb")) {
 795                         if(++i < argc) normbgcolor = argv[i];
 796                 }
 797                 else if(!strcmp(argv[i], "-nf")) {
 798                         if(++i < argc) normfgcolor = argv[i];
 799                 }
 800                 else if(!strcmp(argv[i], "-p")) {
 801                         if(++i < argc) prompt = argv[i];
 802                 }
 803                 else if(!strcmp(argv[i], "-sb")) {
 804                         if(++i < argc) selbgcolor = argv[i];
 805                 }
 806                 else if(!strcmp(argv[i], "-sf")) {
 807                         if(++i < argc) selfgcolor = argv[i];
 808                 }
 809                 else if(!strcmp(argv[i], "-v"))
 810                         eprint("dmenu-"VERSION", © 2006-2010 dmenu engineers, see LICENSE for details\n");
 811                 else
 812                         eprint("usage: dmenu [-i] [-b] [-e <xid>] [-l <lines>] [-fn <font>] [-nb <color>]\n"
 813                                "             [-nf <color>] [-p <prompt>] [-sb <color>] [-sf <color>] [-v]\n");
 814         if(!setlocale(LC_CTYPE, "") || !XSupportsLocale())
 815                 fprintf(stderr, "warning: no locale support\n");
 816         if(!(dpy = XOpenDisplay(NULL)))
 817                 eprint("dmenu: cannot open display\n");
 818         screen = DefaultScreen(dpy);
 819         if(!parent)
 820                 parent = RootWindow(dpy, screen);
 821
 822         readstdin();
 823         running = grabkeyboard();
 824
 825         setup(topbar);
 826         drawmenu();
 827         XSync(dpy, False);
 828         run();
 829         cleanup();
 830         XCloseDisplay(dpy);
 831         return ret;
 832 }