x.c (49407B)
1 /* See LICENSE for license details. */ 2 #include <errno.h> 3 #include <math.h> 4 #include <limits.h> 5 #include <locale.h> 6 #include <signal.h> 7 #include <sys/select.h> 8 #include <time.h> 9 #include <unistd.h> 10 #include <libgen.h> 11 #include <X11/Xatom.h> 12 #include <X11/Xlib.h> 13 #include <X11/cursorfont.h> 14 #include <X11/keysym.h> 15 #include <X11/Xft/Xft.h> 16 #include <X11/XKBlib.h> 17 18 char *argv0; 19 #include "arg.h" 20 #include "st.h" 21 #include "win.h" 22 23 /* types used in config.h */ 24 typedef struct { 25 uint mod; 26 KeySym keysym; 27 void (*func)(const Arg *); 28 const Arg arg; 29 } Shortcut; 30 31 typedef struct { 32 uint mod; 33 uint button; 34 void (*func)(const Arg *); 35 const Arg arg; 36 uint release; 37 } MouseShortcut; 38 39 typedef struct { 40 KeySym k; 41 uint mask; 42 char *s; 43 /* three-valued logic variables: 0 indifferent, 1 on, -1 off */ 44 signed char appkey; /* application keypad */ 45 signed char appcursor; /* application cursor */ 46 } Key; 47 48 /* X modifiers */ 49 #define XK_ANY_MOD UINT_MAX 50 #define XK_NO_MOD 0 51 #define XK_SWITCH_MOD (1<<13|1<<14) 52 53 /* function definitions used in config.h */ 54 static void clipcopy(const Arg *); 55 static void clippaste(const Arg *); 56 static void numlock(const Arg *); 57 static void selpaste(const Arg *); 58 static void zoom(const Arg *); 59 static void zoomabs(const Arg *); 60 static void zoomreset(const Arg *); 61 static void ttysend(const Arg *); 62 static void nextscheme(const Arg *); 63 static void selectscheme(const Arg *); 64 65 /* config.h for applying patches and the configuration. */ 66 #include "config.h" 67 68 /* XEMBED messages */ 69 #define XEMBED_FOCUS_IN 4 70 #define XEMBED_FOCUS_OUT 5 71 72 /* macros */ 73 #define IS_SET(flag) ((win.mode & (flag)) != 0) 74 #define TRUERED(x) (((x) & 0xff0000) >> 8) 75 #define TRUEGREEN(x) (((x) & 0xff00)) 76 #define TRUEBLUE(x) (((x) & 0xff) << 8) 77 78 typedef XftDraw *Draw; 79 typedef XftColor Color; 80 typedef XftGlyphFontSpec GlyphFontSpec; 81 82 /* Purely graphic info */ 83 typedef struct { 84 int tw, th; /* tty width and height */ 85 int w, h; /* window width and height */ 86 int ch; /* char height */ 87 int cw; /* char width */ 88 int mode; /* window state/mode flags */ 89 int cursor; /* cursor style */ 90 } TermWindow; 91 92 typedef struct { 93 Display *dpy; 94 Colormap cmap; 95 Window win; 96 Drawable buf; 97 GlyphFontSpec *specbuf; /* font spec buffer used for rendering */ 98 Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid; 99 struct { 100 XIM xim; 101 XIC xic; 102 XPoint spot; 103 XVaNestedList spotlist; 104 } ime; 105 Draw draw; 106 Visual *vis; 107 XSetWindowAttributes attrs; 108 int scr; 109 int isfixed; /* is fixed geometry? */ 110 int l, t; /* left and top offset */ 111 int gm; /* geometry mask */ 112 } XWindow; 113 114 typedef struct { 115 Atom xtarget; 116 char *primary, *clipboard; 117 struct timespec tclick1; 118 struct timespec tclick2; 119 } XSelection; 120 121 /* Font structure */ 122 #define Font Font_ 123 typedef struct { 124 int height; 125 int width; 126 int ascent; 127 int descent; 128 int badslant; 129 int badweight; 130 short lbearing; 131 short rbearing; 132 XftFont *match; 133 FcFontSet *set; 134 FcPattern *pattern; 135 } Font; 136 137 /* Drawing Context */ 138 typedef struct { 139 Color *col; 140 size_t collen; 141 Font font, bfont, ifont, ibfont; 142 GC gc; 143 } DC; 144 145 static inline ushort sixd_to_16bit(int); 146 static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); 147 static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); 148 static void xdrawglyph(Glyph, int, int); 149 static void xclear(int, int, int, int); 150 static int xgeommasktogravity(int); 151 static int ximopen(Display *); 152 static void ximinstantiate(Display *, XPointer, XPointer); 153 static void ximdestroy(XIM, XPointer, XPointer); 154 static int xicdestroy(XIC, XPointer, XPointer); 155 static void xinit(int, int); 156 static void cresize(int, int); 157 static void xresize(int, int); 158 static void xhints(void); 159 static int xloadcolor(int, const char *, Color *); 160 static int xloadfont(Font *, FcPattern *); 161 static void xloadfonts(const char *, double); 162 static void xunloadfont(Font *); 163 static void xunloadfonts(void); 164 static void xsetenv(void); 165 static void xseturgency(int); 166 static int evcol(XEvent *); 167 static int evrow(XEvent *); 168 169 static void expose(XEvent *); 170 static void visibility(XEvent *); 171 static void unmap(XEvent *); 172 static void kpress(XEvent *); 173 static void cmessage(XEvent *); 174 static void resize(XEvent *); 175 static void focus(XEvent *); 176 static uint buttonmask(uint); 177 static int mouseaction(XEvent *, uint); 178 static void brelease(XEvent *); 179 static void bpress(XEvent *); 180 static void bmotion(XEvent *); 181 static void propnotify(XEvent *); 182 static void selnotify(XEvent *); 183 static void selclear_(XEvent *); 184 static void selrequest(XEvent *); 185 static void setsel(char *, Time); 186 static void mousesel(XEvent *, int); 187 static void mousereport(XEvent *); 188 static char *kmap(KeySym, uint); 189 static int match(uint, uint); 190 static void updatescheme(void); 191 192 static void run(void); 193 static void usage(void); 194 195 static void (*handler[LASTEvent])(XEvent *) = { 196 [KeyPress] = kpress, 197 [ClientMessage] = cmessage, 198 [ConfigureNotify] = resize, 199 [VisibilityNotify] = visibility, 200 [UnmapNotify] = unmap, 201 [Expose] = expose, 202 [FocusIn] = focus, 203 [FocusOut] = focus, 204 [MotionNotify] = bmotion, 205 [ButtonPress] = bpress, 206 [ButtonRelease] = brelease, 207 /* 208 * Uncomment if you want the selection to disappear when you select something 209 * different in another window. 210 */ 211 /* [SelectionClear] = selclear_, */ 212 [SelectionNotify] = selnotify, 213 /* 214 * PropertyNotify is only turned on when there is some INCR transfer happening 215 * for the selection retrieval. 216 */ 217 [PropertyNotify] = propnotify, 218 [SelectionRequest] = selrequest, 219 }; 220 221 /* Globals */ 222 static DC dc; 223 static XWindow xw; 224 static XSelection xsel; 225 static TermWindow win; 226 227 /* Font Ring Cache */ 228 enum { 229 FRC_NORMAL, 230 FRC_ITALIC, 231 FRC_BOLD, 232 FRC_ITALICBOLD 233 }; 234 235 typedef struct { 236 XftFont *font; 237 int flags; 238 Rune unicodep; 239 } Fontcache; 240 241 /* Fontcache is an array now. A new font will be appended to the array. */ 242 static Fontcache *frc = NULL; 243 static int frclen = 0; 244 static int frccap = 0; 245 static char *usedfont = NULL; 246 static double usedfontsize = 0; 247 static double defaultfontsize = 0; 248 249 static char *opt_class = NULL; 250 static char **opt_cmd = NULL; 251 static char *opt_embed = NULL; 252 static char *opt_font = NULL; 253 static char *opt_io = NULL; 254 static char *opt_line = NULL; 255 static char *opt_name = NULL; 256 static char *opt_title = NULL; 257 258 static uint buttons; /* bit field of pressed buttons */ 259 260 void 261 clipcopy(const Arg *dummy) 262 { 263 Atom clipboard; 264 265 free(xsel.clipboard); 266 xsel.clipboard = NULL; 267 268 if (xsel.primary != NULL) { 269 xsel.clipboard = xstrdup(xsel.primary); 270 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); 271 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime); 272 } 273 } 274 275 void 276 clippaste(const Arg *dummy) 277 { 278 Atom clipboard; 279 280 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); 281 XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard, 282 xw.win, CurrentTime); 283 } 284 285 void 286 selpaste(const Arg *dummy) 287 { 288 XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY, 289 xw.win, CurrentTime); 290 } 291 292 void 293 numlock(const Arg *dummy) 294 { 295 win.mode ^= MODE_NUMLOCK; 296 } 297 298 void 299 zoom(const Arg *arg) 300 { 301 Arg larg; 302 303 larg.f = usedfontsize + arg->f; 304 zoomabs(&larg); 305 } 306 307 void 308 zoomabs(const Arg *arg) 309 { 310 xunloadfonts(); 311 xloadfonts(usedfont, arg->f); 312 cresize(0, 0); 313 redraw(); 314 xhints(); 315 } 316 317 void 318 zoomreset(const Arg *arg) 319 { 320 Arg larg; 321 322 if (defaultfontsize > 0) { 323 larg.f = defaultfontsize; 324 zoomabs(&larg); 325 } 326 } 327 328 void 329 ttysend(const Arg *arg) 330 { 331 ttywrite(arg->s, strlen(arg->s), 1); 332 } 333 334 int 335 evcol(XEvent *e) 336 { 337 int x = e->xbutton.x - borderpx; 338 LIMIT(x, 0, win.tw - 1); 339 return x / win.cw; 340 } 341 342 int 343 evrow(XEvent *e) 344 { 345 int y = e->xbutton.y - borderpx; 346 LIMIT(y, 0, win.th - 1); 347 return y / win.ch; 348 } 349 350 void 351 mousesel(XEvent *e, int done) 352 { 353 int type, seltype = SEL_REGULAR; 354 uint state = e->xbutton.state & ~(Button1Mask | forcemousemod); 355 356 for (type = 1; type < LEN(selmasks); ++type) { 357 if (match(selmasks[type], state)) { 358 seltype = type; 359 break; 360 } 361 } 362 selextend(evcol(e), evrow(e), seltype, done); 363 if (done) 364 setsel(getsel(), e->xbutton.time); 365 } 366 367 void 368 mousereport(XEvent *e) 369 { 370 int len, btn, code; 371 int x = evcol(e), y = evrow(e); 372 int state = e->xbutton.state; 373 char buf[40]; 374 static int ox, oy; 375 376 if (e->type == MotionNotify) { 377 if (x == ox && y == oy) 378 return; 379 if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) 380 return; 381 /* MODE_MOUSEMOTION: no reporting if no button is pressed */ 382 if (IS_SET(MODE_MOUSEMOTION) && buttons == 0) 383 return; 384 /* Set btn to lowest-numbered pressed button, or 12 if no 385 * buttons are pressed. */ 386 for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++) 387 ; 388 code = 32; 389 } else { 390 btn = e->xbutton.button; 391 /* Only buttons 1 through 11 can be encoded */ 392 if (btn < 1 || btn > 11) 393 return; 394 if (e->type == ButtonRelease) { 395 /* MODE_MOUSEX10: no button release reporting */ 396 if (IS_SET(MODE_MOUSEX10)) 397 return; 398 /* Don't send release events for the scroll wheel */ 399 if (btn == 4 || btn == 5) 400 return; 401 } 402 code = 0; 403 } 404 405 ox = x; 406 oy = y; 407 408 /* Encode btn into code. If no button is pressed for a motion event in 409 * MODE_MOUSEMANY, then encode it as a release. */ 410 if ((!IS_SET(MODE_MOUSESGR) && e->type == ButtonRelease) || btn == 12) 411 code += 3; 412 else if (btn >= 8) 413 code += 128 + btn - 8; 414 else if (btn >= 4) 415 code += 64 + btn - 4; 416 else 417 code += btn - 1; 418 419 if (!IS_SET(MODE_MOUSEX10)) { 420 code += ((state & ShiftMask ) ? 4 : 0) 421 + ((state & Mod1Mask ) ? 8 : 0) /* meta key: alt */ 422 + ((state & ControlMask) ? 16 : 0); 423 } 424 425 if (IS_SET(MODE_MOUSESGR)) { 426 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", 427 code, x+1, y+1, 428 e->type == ButtonRelease ? 'm' : 'M'); 429 } else if (x < 223 && y < 223) { 430 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", 431 32+code, 32+x+1, 32+y+1); 432 } else { 433 return; 434 } 435 436 ttywrite(buf, len, 0); 437 } 438 439 uint 440 buttonmask(uint button) 441 { 442 return button == Button1 ? Button1Mask 443 : button == Button2 ? Button2Mask 444 : button == Button3 ? Button3Mask 445 : button == Button4 ? Button4Mask 446 : button == Button5 ? Button5Mask 447 : 0; 448 } 449 450 int 451 mouseaction(XEvent *e, uint release) 452 { 453 MouseShortcut *ms; 454 455 /* ignore Button<N>mask for Button<N> - it's set on release */ 456 uint state = e->xbutton.state & ~buttonmask(e->xbutton.button); 457 458 for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { 459 if (ms->release == release && 460 ms->button == e->xbutton.button && 461 (match(ms->mod, state) || /* exact or forced */ 462 match(ms->mod, state & ~forcemousemod))) { 463 ms->func(&(ms->arg)); 464 return 1; 465 } 466 } 467 468 return 0; 469 } 470 471 void 472 bpress(XEvent *e) 473 { 474 int btn = e->xbutton.button; 475 struct timespec now; 476 int snap; 477 478 if (1 <= btn && btn <= 11) 479 buttons |= 1 << (btn-1); 480 481 if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { 482 mousereport(e); 483 return; 484 } 485 486 if (mouseaction(e, 0)) 487 return; 488 489 if (btn == Button1) { 490 /* 491 * If the user clicks below predefined timeouts specific 492 * snapping behaviour is exposed. 493 */ 494 clock_gettime(CLOCK_MONOTONIC, &now); 495 if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) { 496 snap = SNAP_LINE; 497 } else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) { 498 snap = SNAP_WORD; 499 } else { 500 snap = 0; 501 } 502 xsel.tclick2 = xsel.tclick1; 503 xsel.tclick1 = now; 504 505 selstart(evcol(e), evrow(e), snap); 506 } 507 } 508 509 void 510 propnotify(XEvent *e) 511 { 512 XPropertyEvent *xpev; 513 Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); 514 515 xpev = &e->xproperty; 516 if (xpev->state == PropertyNewValue && 517 (xpev->atom == XA_PRIMARY || 518 xpev->atom == clipboard)) { 519 selnotify(e); 520 } 521 } 522 523 void 524 selnotify(XEvent *e) 525 { 526 ulong nitems, ofs, rem; 527 int format; 528 uchar *data, *last, *repl; 529 Atom type, incratom, property = None; 530 531 incratom = XInternAtom(xw.dpy, "INCR", 0); 532 533 ofs = 0; 534 if (e->type == SelectionNotify) 535 property = e->xselection.property; 536 else if (e->type == PropertyNotify) 537 property = e->xproperty.atom; 538 539 if (property == None) 540 return; 541 542 do { 543 if (XGetWindowProperty(xw.dpy, xw.win, property, ofs, 544 BUFSIZ/4, False, AnyPropertyType, 545 &type, &format, &nitems, &rem, 546 &data)) { 547 fprintf(stderr, "Clipboard allocation failed\n"); 548 return; 549 } 550 551 if (e->type == PropertyNotify && nitems == 0 && rem == 0) { 552 /* 553 * If there is some PropertyNotify with no data, then 554 * this is the signal of the selection owner that all 555 * data has been transferred. We won't need to receive 556 * PropertyNotify events anymore. 557 */ 558 MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask); 559 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, 560 &xw.attrs); 561 } 562 563 if (type == incratom) { 564 /* 565 * Activate the PropertyNotify events so we receive 566 * when the selection owner does send us the next 567 * chunk of data. 568 */ 569 MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask); 570 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, 571 &xw.attrs); 572 573 /* 574 * Deleting the property is the transfer start signal. 575 */ 576 XDeleteProperty(xw.dpy, xw.win, (int)property); 577 continue; 578 } 579 580 /* 581 * As seen in getsel: 582 * Line endings are inconsistent in the terminal and GUI world 583 * copy and pasting. When receiving some selection data, 584 * replace all '\n' with '\r'. 585 * FIXME: Fix the computer world. 586 */ 587 repl = data; 588 last = data + nitems * format / 8; 589 while ((repl = memchr(repl, '\n', last - repl))) { 590 *repl++ = '\r'; 591 } 592 593 if (IS_SET(MODE_BRCKTPASTE) && ofs == 0) 594 ttywrite("\033[200~", 6, 0); 595 ttywrite((char *)data, nitems * format / 8, 1); 596 if (IS_SET(MODE_BRCKTPASTE) && rem == 0) 597 ttywrite("\033[201~", 6, 0); 598 XFree(data); 599 /* number of 32-bit chunks returned */ 600 ofs += nitems * format / 32; 601 } while (rem > 0); 602 603 /* 604 * Deleting the property again tells the selection owner to send the 605 * next data chunk in the property. 606 */ 607 XDeleteProperty(xw.dpy, xw.win, (int)property); 608 } 609 610 void 611 xclipcopy(void) 612 { 613 clipcopy(NULL); 614 } 615 616 void 617 selclear_(XEvent *e) 618 { 619 selclear(); 620 } 621 622 void 623 selrequest(XEvent *e) 624 { 625 XSelectionRequestEvent *xsre; 626 XSelectionEvent xev; 627 Atom xa_targets, string, clipboard; 628 char *seltext; 629 630 xsre = (XSelectionRequestEvent *) e; 631 xev.type = SelectionNotify; 632 xev.requestor = xsre->requestor; 633 xev.selection = xsre->selection; 634 xev.target = xsre->target; 635 xev.time = xsre->time; 636 if (xsre->property == None) 637 xsre->property = xsre->target; 638 639 /* reject */ 640 xev.property = None; 641 642 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); 643 if (xsre->target == xa_targets) { 644 /* respond with the supported type */ 645 string = xsel.xtarget; 646 XChangeProperty(xsre->display, xsre->requestor, xsre->property, 647 XA_ATOM, 32, PropModeReplace, 648 (uchar *) &string, 1); 649 xev.property = xsre->property; 650 } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) { 651 /* 652 * xith XA_STRING non ascii characters may be incorrect in the 653 * requestor. It is not our problem, use utf8. 654 */ 655 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); 656 if (xsre->selection == XA_PRIMARY) { 657 seltext = xsel.primary; 658 } else if (xsre->selection == clipboard) { 659 seltext = xsel.clipboard; 660 } else { 661 fprintf(stderr, 662 "Unhandled clipboard selection 0x%lx\n", 663 xsre->selection); 664 return; 665 } 666 if (seltext != NULL) { 667 XChangeProperty(xsre->display, xsre->requestor, 668 xsre->property, xsre->target, 669 8, PropModeReplace, 670 (uchar *)seltext, strlen(seltext)); 671 xev.property = xsre->property; 672 } 673 } 674 675 /* all done, send a notification to the listener */ 676 if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev)) 677 fprintf(stderr, "Error sending SelectionNotify event\n"); 678 } 679 680 void 681 setsel(char *str, Time t) 682 { 683 if (!str) 684 return; 685 686 free(xsel.primary); 687 xsel.primary = str; 688 689 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t); 690 if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win) 691 selclear(); 692 } 693 694 void 695 xsetsel(char *str) 696 { 697 setsel(str, CurrentTime); 698 } 699 700 void 701 brelease(XEvent *e) 702 { 703 int btn = e->xbutton.button; 704 705 if (1 <= btn && btn <= 11) 706 buttons &= ~(1 << (btn-1)); 707 708 if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { 709 mousereport(e); 710 return; 711 } 712 713 if (mouseaction(e, 1)) 714 return; 715 if (btn == Button1) 716 mousesel(e, 1); 717 } 718 719 void 720 bmotion(XEvent *e) 721 { 722 if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { 723 mousereport(e); 724 return; 725 } 726 727 mousesel(e, 0); 728 } 729 730 void 731 cresize(int width, int height) 732 { 733 int col, row; 734 735 if (width != 0) 736 win.w = width; 737 if (height != 0) 738 win.h = height; 739 740 col = (win.w - 2 * borderpx) / win.cw; 741 row = (win.h - 2 * borderpx) / win.ch; 742 col = MAX(1, col); 743 row = MAX(1, row); 744 745 tresize(col, row); 746 xresize(col, row); 747 ttyresize(win.tw, win.th); 748 } 749 750 void 751 xresize(int col, int row) 752 { 753 win.tw = col * win.cw; 754 win.th = row * win.ch; 755 756 XFreePixmap(xw.dpy, xw.buf); 757 xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, 758 DefaultDepth(xw.dpy, xw.scr)); 759 XftDrawChange(xw.draw, xw.buf); 760 xclear(0, 0, win.w, win.h); 761 762 /* resize to new width */ 763 xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); 764 } 765 766 ushort 767 sixd_to_16bit(int x) 768 { 769 return x == 0 ? 0 : 0x3737 + 0x2828 * x; 770 } 771 772 int 773 xloadcolor(int i, const char *name, Color *ncolor) 774 { 775 XRenderColor color = { .alpha = 0xffff }; 776 777 if (!name) { 778 if (BETWEEN(i, 16, 255)) { /* 256 color */ 779 if (i < 6*6*6+16) { /* same colors as xterm */ 780 color.red = sixd_to_16bit( ((i-16)/36)%6 ); 781 color.green = sixd_to_16bit( ((i-16)/6) %6 ); 782 color.blue = sixd_to_16bit( ((i-16)/1) %6 ); 783 } else { /* greyscale */ 784 color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16)); 785 color.green = color.blue = color.red; 786 } 787 return XftColorAllocValue(xw.dpy, xw.vis, 788 xw.cmap, &color, ncolor); 789 } else 790 name = colorname[i]; 791 } 792 793 return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor); 794 } 795 796 void 797 xloadcols(void) 798 { 799 int i; 800 static int loaded; 801 Color *cp; 802 803 if (loaded) { 804 for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp) 805 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp); 806 } else { 807 dc.collen = 258; 808 dc.col = xmalloc(dc.collen * sizeof(Color)); 809 } 810 811 for (i = 0; i < dc.collen; i++) 812 if (!xloadcolor(i, NULL, &dc.col[i])) { 813 if (colorname[i]) 814 die("could not allocate color '%s'\n", colorname[i]); 815 else 816 die("could not allocate color %d\n", i); 817 } 818 loaded = 1; 819 } 820 821 int 822 xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b) 823 { 824 if (!BETWEEN(x, 0, dc.collen - 1)) 825 return 1; 826 827 *r = dc.col[x].color.red >> 8; 828 *g = dc.col[x].color.green >> 8; 829 *b = dc.col[x].color.blue >> 8; 830 831 return 0; 832 } 833 834 int 835 xsetcolorname(int x, const char *name) 836 { 837 Color ncolor; 838 839 if (!BETWEEN(x, 0, dc.collen - 1)) 840 return 1; 841 842 if (!xloadcolor(x, name, &ncolor)) 843 return 1; 844 845 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]); 846 dc.col[x] = ncolor; 847 848 return 0; 849 } 850 851 /* 852 * Absolute coordinates. 853 */ 854 void 855 xclear(int x1, int y1, int x2, int y2) 856 { 857 XftDrawRect(xw.draw, 858 &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg], 859 x1, y1, x2-x1, y2-y1); 860 } 861 862 void 863 xhints(void) 864 { 865 XClassHint class = {opt_name ? opt_name : termname, 866 opt_class ? opt_class : termname}; 867 XWMHints wm = {.flags = InputHint, .input = 1}; 868 XSizeHints *sizeh; 869 870 sizeh = XAllocSizeHints(); 871 872 sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize; 873 sizeh->height = win.h; 874 sizeh->width = win.w; 875 sizeh->height_inc = win.ch; 876 sizeh->width_inc = win.cw; 877 sizeh->base_height = 2 * borderpx; 878 sizeh->base_width = 2 * borderpx; 879 sizeh->min_height = win.ch + 2 * borderpx; 880 sizeh->min_width = win.cw + 2 * borderpx; 881 if (xw.isfixed) { 882 sizeh->flags |= PMaxSize; 883 sizeh->min_width = sizeh->max_width = win.w; 884 sizeh->min_height = sizeh->max_height = win.h; 885 } 886 if (xw.gm & (XValue|YValue)) { 887 sizeh->flags |= USPosition | PWinGravity; 888 sizeh->x = xw.l; 889 sizeh->y = xw.t; 890 sizeh->win_gravity = xgeommasktogravity(xw.gm); 891 } 892 893 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, 894 &class); 895 XFree(sizeh); 896 } 897 898 int 899 xgeommasktogravity(int mask) 900 { 901 switch (mask & (XNegative|YNegative)) { 902 case 0: 903 return NorthWestGravity; 904 case XNegative: 905 return NorthEastGravity; 906 case YNegative: 907 return SouthWestGravity; 908 } 909 910 return SouthEastGravity; 911 } 912 913 int 914 xloadfont(Font *f, FcPattern *pattern) 915 { 916 FcPattern *configured; 917 FcPattern *match; 918 FcResult result; 919 XGlyphInfo extents; 920 int wantattr, haveattr; 921 922 /* 923 * Manually configure instead of calling XftMatchFont 924 * so that we can use the configured pattern for 925 * "missing glyph" lookups. 926 */ 927 configured = FcPatternDuplicate(pattern); 928 if (!configured) 929 return 1; 930 931 FcConfigSubstitute(NULL, configured, FcMatchPattern); 932 XftDefaultSubstitute(xw.dpy, xw.scr, configured); 933 934 match = FcFontMatch(NULL, configured, &result); 935 if (!match) { 936 FcPatternDestroy(configured); 937 return 1; 938 } 939 940 if (!(f->match = XftFontOpenPattern(xw.dpy, match))) { 941 FcPatternDestroy(configured); 942 FcPatternDestroy(match); 943 return 1; 944 } 945 946 if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) == 947 XftResultMatch)) { 948 /* 949 * Check if xft was unable to find a font with the appropriate 950 * slant but gave us one anyway. Try to mitigate. 951 */ 952 if ((XftPatternGetInteger(f->match->pattern, "slant", 0, 953 &haveattr) != XftResultMatch) || haveattr < wantattr) { 954 f->badslant = 1; 955 fputs("font slant does not match\n", stderr); 956 } 957 } 958 959 if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) == 960 XftResultMatch)) { 961 if ((XftPatternGetInteger(f->match->pattern, "weight", 0, 962 &haveattr) != XftResultMatch) || haveattr != wantattr) { 963 f->badweight = 1; 964 fputs("font weight does not match\n", stderr); 965 } 966 } 967 968 XftTextExtentsUtf8(xw.dpy, f->match, 969 (const FcChar8 *) ascii_printable, 970 strlen(ascii_printable), &extents); 971 972 f->set = NULL; 973 f->pattern = configured; 974 975 f->ascent = f->match->ascent; 976 f->descent = f->match->descent; 977 f->lbearing = 0; 978 f->rbearing = f->match->max_advance_width; 979 980 f->height = f->ascent + f->descent; 981 f->width = DIVCEIL(extents.xOff, strlen(ascii_printable)); 982 983 return 0; 984 } 985 986 void 987 xloadfonts(const char *fontstr, double fontsize) 988 { 989 FcPattern *pattern; 990 double fontval; 991 992 if (fontstr[0] == '-') 993 pattern = XftXlfdParse(fontstr, False, False); 994 else 995 pattern = FcNameParse((const FcChar8 *)fontstr); 996 997 if (!pattern) 998 die("can't open font %s\n", fontstr); 999 1000 if (fontsize > 1) { 1001 FcPatternDel(pattern, FC_PIXEL_SIZE); 1002 FcPatternDel(pattern, FC_SIZE); 1003 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize); 1004 usedfontsize = fontsize; 1005 } else { 1006 if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == 1007 FcResultMatch) { 1008 usedfontsize = fontval; 1009 } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) == 1010 FcResultMatch) { 1011 usedfontsize = -1; 1012 } else { 1013 /* 1014 * Default font size is 12, if none given. This is to 1015 * have a known usedfontsize value. 1016 */ 1017 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12); 1018 usedfontsize = 12; 1019 } 1020 defaultfontsize = usedfontsize; 1021 } 1022 1023 if (xloadfont(&dc.font, pattern)) 1024 die("can't open font %s\n", fontstr); 1025 1026 if (usedfontsize < 0) { 1027 FcPatternGetDouble(dc.font.match->pattern, 1028 FC_PIXEL_SIZE, 0, &fontval); 1029 usedfontsize = fontval; 1030 if (fontsize == 0) 1031 defaultfontsize = fontval; 1032 } 1033 1034 /* Setting character width and height. */ 1035 win.cw = ceilf(dc.font.width * cwscale); 1036 win.ch = ceilf(dc.font.height * chscale); 1037 1038 FcPatternDel(pattern, FC_SLANT); 1039 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); 1040 if (xloadfont(&dc.ifont, pattern)) 1041 die("can't open font %s\n", fontstr); 1042 1043 FcPatternDel(pattern, FC_WEIGHT); 1044 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); 1045 if (xloadfont(&dc.ibfont, pattern)) 1046 die("can't open font %s\n", fontstr); 1047 1048 FcPatternDel(pattern, FC_SLANT); 1049 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); 1050 if (xloadfont(&dc.bfont, pattern)) 1051 die("can't open font %s\n", fontstr); 1052 1053 FcPatternDestroy(pattern); 1054 } 1055 1056 void 1057 xunloadfont(Font *f) 1058 { 1059 XftFontClose(xw.dpy, f->match); 1060 FcPatternDestroy(f->pattern); 1061 if (f->set) 1062 FcFontSetDestroy(f->set); 1063 } 1064 1065 void 1066 xunloadfonts(void) 1067 { 1068 /* Free the loaded fonts in the font cache. */ 1069 while (frclen > 0) 1070 XftFontClose(xw.dpy, frc[--frclen].font); 1071 1072 xunloadfont(&dc.font); 1073 xunloadfont(&dc.bfont); 1074 xunloadfont(&dc.ifont); 1075 xunloadfont(&dc.ibfont); 1076 } 1077 1078 int 1079 ximopen(Display *dpy) 1080 { 1081 XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy }; 1082 XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy }; 1083 1084 xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL); 1085 if (xw.ime.xim == NULL) 1086 return 0; 1087 1088 if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL)) 1089 fprintf(stderr, "XSetIMValues: " 1090 "Could not set XNDestroyCallback.\n"); 1091 1092 xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot, 1093 NULL); 1094 1095 if (xw.ime.xic == NULL) { 1096 xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle, 1097 XIMPreeditNothing | XIMStatusNothing, 1098 XNClientWindow, xw.win, 1099 XNDestroyCallback, &icdestroy, 1100 NULL); 1101 } 1102 if (xw.ime.xic == NULL) 1103 fprintf(stderr, "XCreateIC: Could not create input context.\n"); 1104 1105 return 1; 1106 } 1107 1108 void 1109 ximinstantiate(Display *dpy, XPointer client, XPointer call) 1110 { 1111 if (ximopen(dpy)) 1112 XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, 1113 ximinstantiate, NULL); 1114 } 1115 1116 void 1117 ximdestroy(XIM xim, XPointer client, XPointer call) 1118 { 1119 xw.ime.xim = NULL; 1120 XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, 1121 ximinstantiate, NULL); 1122 XFree(xw.ime.spotlist); 1123 } 1124 1125 int 1126 xicdestroy(XIC xim, XPointer client, XPointer call) 1127 { 1128 xw.ime.xic = NULL; 1129 return 1; 1130 } 1131 1132 void 1133 xinit(int cols, int rows) 1134 { 1135 XGCValues gcvalues; 1136 Cursor cursor; 1137 Window parent, root; 1138 pid_t thispid = getpid(); 1139 XColor xmousefg, xmousebg; 1140 1141 if (!(xw.dpy = XOpenDisplay(NULL))) 1142 die("can't open display\n"); 1143 xw.scr = XDefaultScreen(xw.dpy); 1144 xw.vis = XDefaultVisual(xw.dpy, xw.scr); 1145 1146 /* font */ 1147 if (!FcInit()) 1148 die("could not init fontconfig.\n"); 1149 1150 usedfont = (opt_font == NULL)? font : opt_font; 1151 xloadfonts(usedfont, 0); 1152 1153 /* colors */ 1154 xw.cmap = XDefaultColormap(xw.dpy, xw.scr); 1155 xloadcols(); 1156 1157 /* adjust fixed window geometry */ 1158 win.w = 2 * borderpx + cols * win.cw; 1159 win.h = 2 * borderpx + rows * win.ch; 1160 if (xw.gm & XNegative) 1161 xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2; 1162 if (xw.gm & YNegative) 1163 xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2; 1164 1165 /* Events */ 1166 xw.attrs.background_pixel = dc.col[defaultbg].pixel; 1167 xw.attrs.border_pixel = dc.col[defaultbg].pixel; 1168 xw.attrs.bit_gravity = NorthWestGravity; 1169 xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask 1170 | ExposureMask | VisibilityChangeMask | StructureNotifyMask 1171 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; 1172 xw.attrs.colormap = xw.cmap; 1173 1174 root = XRootWindow(xw.dpy, xw.scr); 1175 if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) 1176 parent = root; 1177 xw.win = XCreateWindow(xw.dpy, root, xw.l, xw.t, 1178 win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, 1179 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity 1180 | CWEventMask | CWColormap, &xw.attrs); 1181 if (parent != root) 1182 XReparentWindow(xw.dpy, xw.win, parent, xw.l, xw.t); 1183 1184 memset(&gcvalues, 0, sizeof(gcvalues)); 1185 gcvalues.graphics_exposures = False; 1186 dc.gc = XCreateGC(xw.dpy, xw.win, GCGraphicsExposures, 1187 &gcvalues); 1188 xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, 1189 DefaultDepth(xw.dpy, xw.scr)); 1190 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); 1191 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); 1192 1193 /* font spec buffer */ 1194 xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec)); 1195 1196 /* Xft rendering context */ 1197 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); 1198 1199 /* input methods */ 1200 if (!ximopen(xw.dpy)) { 1201 XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, 1202 ximinstantiate, NULL); 1203 } 1204 1205 /* white cursor, black outline */ 1206 cursor = XCreateFontCursor(xw.dpy, mouseshape); 1207 XDefineCursor(xw.dpy, xw.win, cursor); 1208 1209 if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) { 1210 xmousefg.red = 0xffff; 1211 xmousefg.green = 0xffff; 1212 xmousefg.blue = 0xffff; 1213 } 1214 1215 if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) { 1216 xmousebg.red = 0x0000; 1217 xmousebg.green = 0x0000; 1218 xmousebg.blue = 0x0000; 1219 } 1220 1221 XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg); 1222 1223 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); 1224 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False); 1225 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False); 1226 xw.netwmiconname = XInternAtom(xw.dpy, "_NET_WM_ICON_NAME", False); 1227 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1); 1228 1229 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False); 1230 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32, 1231 PropModeReplace, (uchar *)&thispid, 1); 1232 1233 win.mode = MODE_NUMLOCK; 1234 resettitle(); 1235 xhints(); 1236 XMapWindow(xw.dpy, xw.win); 1237 XSync(xw.dpy, False); 1238 1239 clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1); 1240 clock_gettime(CLOCK_MONOTONIC, &xsel.tclick2); 1241 xsel.primary = NULL; 1242 xsel.clipboard = NULL; 1243 xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); 1244 if (xsel.xtarget == None) 1245 xsel.xtarget = XA_STRING; 1246 } 1247 1248 int 1249 xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y) 1250 { 1251 float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp; 1252 ushort mode, prevmode = USHRT_MAX; 1253 Font *font = &dc.font; 1254 int frcflags = FRC_NORMAL; 1255 float runewidth = win.cw; 1256 Rune rune; 1257 FT_UInt glyphidx; 1258 FcResult fcres; 1259 FcPattern *fcpattern, *fontpattern; 1260 FcFontSet *fcsets[] = { NULL }; 1261 FcCharSet *fccharset; 1262 int i, f, numspecs = 0; 1263 1264 for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) { 1265 /* Fetch rune and mode for current glyph. */ 1266 rune = glyphs[i].u; 1267 mode = glyphs[i].mode; 1268 1269 /* Skip dummy wide-character spacing. */ 1270 if (mode == ATTR_WDUMMY) 1271 continue; 1272 1273 /* Determine font for glyph if different from previous glyph. */ 1274 if (prevmode != mode) { 1275 prevmode = mode; 1276 font = &dc.font; 1277 frcflags = FRC_NORMAL; 1278 runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f); 1279 if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { 1280 font = &dc.ibfont; 1281 frcflags = FRC_ITALICBOLD; 1282 } else if (mode & ATTR_ITALIC) { 1283 font = &dc.ifont; 1284 frcflags = FRC_ITALIC; 1285 } else if (mode & ATTR_BOLD) { 1286 font = &dc.bfont; 1287 frcflags = FRC_BOLD; 1288 } 1289 yp = winy + font->ascent; 1290 } 1291 1292 /* Lookup character index with default font. */ 1293 glyphidx = XftCharIndex(xw.dpy, font->match, rune); 1294 if (glyphidx) { 1295 specs[numspecs].font = font->match; 1296 specs[numspecs].glyph = glyphidx; 1297 specs[numspecs].x = (short)xp; 1298 specs[numspecs].y = (short)yp; 1299 xp += runewidth; 1300 numspecs++; 1301 continue; 1302 } 1303 1304 /* Fallback on font cache, search the font cache for match. */ 1305 for (f = 0; f < frclen; f++) { 1306 glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune); 1307 /* Everything correct. */ 1308 if (glyphidx && frc[f].flags == frcflags) 1309 break; 1310 /* We got a default font for a not found glyph. */ 1311 if (!glyphidx && frc[f].flags == frcflags 1312 && frc[f].unicodep == rune) { 1313 break; 1314 } 1315 } 1316 1317 /* Nothing was found. Use fontconfig to find matching font. */ 1318 if (f >= frclen) { 1319 if (!font->set) 1320 font->set = FcFontSort(0, font->pattern, 1321 1, 0, &fcres); 1322 fcsets[0] = font->set; 1323 1324 /* 1325 * Nothing was found in the cache. Now use 1326 * some dozen of Fontconfig calls to get the 1327 * font for one single character. 1328 * 1329 * Xft and fontconfig are design failures. 1330 */ 1331 fcpattern = FcPatternDuplicate(font->pattern); 1332 fccharset = FcCharSetCreate(); 1333 1334 FcCharSetAddChar(fccharset, rune); 1335 FcPatternAddCharSet(fcpattern, FC_CHARSET, 1336 fccharset); 1337 FcPatternAddBool(fcpattern, FC_SCALABLE, 1); 1338 1339 FcConfigSubstitute(0, fcpattern, 1340 FcMatchPattern); 1341 FcDefaultSubstitute(fcpattern); 1342 1343 fontpattern = FcFontSetMatch(0, fcsets, 1, 1344 fcpattern, &fcres); 1345 1346 /* Allocate memory for the new cache entry. */ 1347 if (frclen >= frccap) { 1348 frccap += 16; 1349 frc = xrealloc(frc, frccap * sizeof(Fontcache)); 1350 } 1351 1352 frc[frclen].font = XftFontOpenPattern(xw.dpy, 1353 fontpattern); 1354 if (!frc[frclen].font) 1355 die("XftFontOpenPattern failed seeking fallback font: %s\n", 1356 strerror(errno)); 1357 frc[frclen].flags = frcflags; 1358 frc[frclen].unicodep = rune; 1359 1360 glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune); 1361 1362 f = frclen; 1363 frclen++; 1364 1365 FcPatternDestroy(fcpattern); 1366 FcCharSetDestroy(fccharset); 1367 } 1368 1369 specs[numspecs].font = frc[f].font; 1370 specs[numspecs].glyph = glyphidx; 1371 specs[numspecs].x = (short)xp; 1372 specs[numspecs].y = (short)yp; 1373 xp += runewidth; 1374 numspecs++; 1375 } 1376 1377 return numspecs; 1378 } 1379 1380 void 1381 xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) 1382 { 1383 int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); 1384 int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, 1385 width = charlen * win.cw; 1386 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; 1387 XRenderColor colfg, colbg; 1388 XRectangle r; 1389 1390 /* Fallback on color display for attributes not supported by the font */ 1391 if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) { 1392 if (dc.ibfont.badslant || dc.ibfont.badweight) 1393 base.fg = defaultattr; 1394 } else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) || 1395 (base.mode & ATTR_BOLD && dc.bfont.badweight)) { 1396 base.fg = defaultattr; 1397 } 1398 1399 if (IS_TRUECOL(base.fg)) { 1400 colfg.alpha = 0xffff; 1401 colfg.red = TRUERED(base.fg); 1402 colfg.green = TRUEGREEN(base.fg); 1403 colfg.blue = TRUEBLUE(base.fg); 1404 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg); 1405 fg = &truefg; 1406 } else { 1407 fg = &dc.col[base.fg]; 1408 } 1409 1410 if (IS_TRUECOL(base.bg)) { 1411 colbg.alpha = 0xffff; 1412 colbg.green = TRUEGREEN(base.bg); 1413 colbg.red = TRUERED(base.bg); 1414 colbg.blue = TRUEBLUE(base.bg); 1415 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg); 1416 bg = &truebg; 1417 } else { 1418 bg = &dc.col[base.bg]; 1419 } 1420 1421 /* Change basic system colors [0-7] to bright system colors [8-15] */ 1422 if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7)) 1423 fg = &dc.col[base.fg + 8]; 1424 1425 if (IS_SET(MODE_REVERSE)) { 1426 if (fg == &dc.col[defaultfg]) { 1427 fg = &dc.col[defaultbg]; 1428 } else { 1429 colfg.red = ~fg->color.red; 1430 colfg.green = ~fg->color.green; 1431 colfg.blue = ~fg->color.blue; 1432 colfg.alpha = fg->color.alpha; 1433 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, 1434 &revfg); 1435 fg = &revfg; 1436 } 1437 1438 if (bg == &dc.col[defaultbg]) { 1439 bg = &dc.col[defaultfg]; 1440 } else { 1441 colbg.red = ~bg->color.red; 1442 colbg.green = ~bg->color.green; 1443 colbg.blue = ~bg->color.blue; 1444 colbg.alpha = bg->color.alpha; 1445 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, 1446 &revbg); 1447 bg = &revbg; 1448 } 1449 } 1450 1451 if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) { 1452 colfg.red = fg->color.red / 2; 1453 colfg.green = fg->color.green / 2; 1454 colfg.blue = fg->color.blue / 2; 1455 colfg.alpha = fg->color.alpha; 1456 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg); 1457 fg = &revfg; 1458 } 1459 1460 if (base.mode & ATTR_REVERSE) { 1461 temp = fg; 1462 fg = bg; 1463 bg = temp; 1464 } 1465 1466 if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK) 1467 fg = bg; 1468 1469 if (base.mode & ATTR_INVISIBLE) 1470 fg = bg; 1471 1472 /* Intelligent cleaning up of the borders. */ 1473 if (x == 0) { 1474 xclear(0, (y == 0)? 0 : winy, borderpx, 1475 winy + win.ch + 1476 ((winy + win.ch >= borderpx + win.th)? win.h : 0)); 1477 } 1478 if (winx + width >= borderpx + win.tw) { 1479 xclear(winx + width, (y == 0)? 0 : winy, win.w, 1480 ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch))); 1481 } 1482 if (y == 0) 1483 xclear(winx, 0, winx + width, borderpx); 1484 if (winy + win.ch >= borderpx + win.th) 1485 xclear(winx, winy + win.ch, winx + width, win.h); 1486 1487 /* Clean up the region we want to draw to. */ 1488 XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); 1489 1490 /* Set the clip region because Xft is sometimes dirty. */ 1491 r.x = 0; 1492 r.y = 0; 1493 r.height = win.ch; 1494 r.width = width; 1495 XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1); 1496 1497 /* Render the glyphs. */ 1498 XftDrawGlyphFontSpec(xw.draw, fg, specs, len); 1499 1500 /* Render underline and strikethrough. */ 1501 if (base.mode & ATTR_UNDERLINE) { 1502 XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent * chscale + 1, 1503 width, 1); 1504 } 1505 1506 if (base.mode & ATTR_STRUCK) { 1507 XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent * chscale / 3, 1508 width, 1); 1509 } 1510 1511 /* Reset clip to none. */ 1512 XftDrawSetClip(xw.draw, 0); 1513 } 1514 1515 void 1516 xdrawglyph(Glyph g, int x, int y) 1517 { 1518 int numspecs; 1519 XftGlyphFontSpec spec; 1520 1521 numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); 1522 xdrawglyphfontspecs(&spec, g, numspecs, x, y); 1523 } 1524 1525 void 1526 xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) 1527 { 1528 Color drawcol; 1529 1530 /* remove the old cursor */ 1531 if (selected(ox, oy)) 1532 og.mode ^= ATTR_REVERSE; 1533 xdrawglyph(og, ox, oy); 1534 1535 if (IS_SET(MODE_HIDE)) 1536 return; 1537 1538 /* 1539 * Select the right color for the right mode. 1540 */ 1541 g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE; 1542 1543 if (IS_SET(MODE_REVERSE)) { 1544 g.mode |= ATTR_REVERSE; 1545 g.bg = defaultfg; 1546 if (selected(cx, cy)) { 1547 drawcol = dc.col[defaultcs]; 1548 g.fg = defaultrcs; 1549 } else { 1550 drawcol = dc.col[defaultrcs]; 1551 g.fg = defaultcs; 1552 } 1553 } else { 1554 if (selected(cx, cy)) { 1555 g.fg = defaultfg; 1556 g.bg = defaultrcs; 1557 } else { 1558 g.fg = defaultbg; 1559 g.bg = defaultcs; 1560 } 1561 drawcol = dc.col[g.bg]; 1562 } 1563 1564 /* draw the new one */ 1565 if (IS_SET(MODE_FOCUSED)) { 1566 switch (win.cursor) { 1567 case 7: /* st extension */ 1568 g.u = 0x2603; /* snowman (U+2603) */ 1569 /* FALLTHROUGH */ 1570 case 0: /* Blinking Block */ 1571 case 1: /* Blinking Block (Default) */ 1572 case 2: /* Steady Block */ 1573 xdrawglyph(g, cx, cy); 1574 break; 1575 case 3: /* Blinking Underline */ 1576 case 4: /* Steady Underline */ 1577 XftDrawRect(xw.draw, &drawcol, 1578 borderpx + cx * win.cw, 1579 borderpx + (cy + 1) * win.ch - \ 1580 cursorthickness, 1581 win.cw, cursorthickness); 1582 break; 1583 case 5: /* Blinking bar */ 1584 case 6: /* Steady bar */ 1585 XftDrawRect(xw.draw, &drawcol, 1586 borderpx + cx * win.cw, 1587 borderpx + cy * win.ch, 1588 cursorthickness, win.ch); 1589 break; 1590 } 1591 } else { 1592 XftDrawRect(xw.draw, &drawcol, 1593 borderpx + cx * win.cw, 1594 borderpx + cy * win.ch, 1595 win.cw - 1, 1); 1596 XftDrawRect(xw.draw, &drawcol, 1597 borderpx + cx * win.cw, 1598 borderpx + cy * win.ch, 1599 1, win.ch - 1); 1600 XftDrawRect(xw.draw, &drawcol, 1601 borderpx + (cx + 1) * win.cw - 1, 1602 borderpx + cy * win.ch, 1603 1, win.ch - 1); 1604 XftDrawRect(xw.draw, &drawcol, 1605 borderpx + cx * win.cw, 1606 borderpx + (cy + 1) * win.ch - 1, 1607 win.cw, 1); 1608 } 1609 } 1610 1611 void 1612 xsetenv(void) 1613 { 1614 char buf[sizeof(long) * 8 + 1]; 1615 1616 snprintf(buf, sizeof(buf), "%lu", xw.win); 1617 setenv("WINDOWID", buf, 1); 1618 } 1619 1620 void 1621 xseticontitle(char *p) 1622 { 1623 XTextProperty prop; 1624 DEFAULT(p, opt_title); 1625 1626 if (p[0] == '\0') 1627 p = opt_title; 1628 1629 if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, 1630 &prop) != Success) 1631 return; 1632 XSetWMIconName(xw.dpy, xw.win, &prop); 1633 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmiconname); 1634 XFree(prop.value); 1635 } 1636 1637 void 1638 xsettitle(char *p) 1639 { 1640 XTextProperty prop; 1641 DEFAULT(p, opt_title); 1642 1643 if (p[0] == '\0') 1644 p = opt_title; 1645 1646 if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, 1647 &prop) != Success) 1648 return; 1649 XSetWMName(xw.dpy, xw.win, &prop); 1650 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname); 1651 XFree(prop.value); 1652 } 1653 1654 int 1655 xstartdraw(void) 1656 { 1657 return IS_SET(MODE_VISIBLE); 1658 } 1659 1660 void 1661 xdrawline(Line line, int x1, int y1, int x2) 1662 { 1663 int i, x, ox, numspecs; 1664 Glyph base, new; 1665 XftGlyphFontSpec *specs = xw.specbuf; 1666 1667 numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1); 1668 i = ox = 0; 1669 for (x = x1; x < x2 && i < numspecs; x++) { 1670 new = line[x]; 1671 if (new.mode == ATTR_WDUMMY) 1672 continue; 1673 if (selected(x, y1)) 1674 new.mode ^= ATTR_REVERSE; 1675 if (i > 0 && ATTRCMP(base, new)) { 1676 xdrawglyphfontspecs(specs, base, i, ox, y1); 1677 specs += i; 1678 numspecs -= i; 1679 i = 0; 1680 } 1681 if (i == 0) { 1682 ox = x; 1683 base = new; 1684 } 1685 i++; 1686 } 1687 if (i > 0) 1688 xdrawglyphfontspecs(specs, base, i, ox, y1); 1689 } 1690 1691 void 1692 xfinishdraw(void) 1693 { 1694 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w, 1695 win.h, 0, 0); 1696 XSetForeground(xw.dpy, dc.gc, 1697 dc.col[IS_SET(MODE_REVERSE)? 1698 defaultfg : defaultbg].pixel); 1699 } 1700 1701 void 1702 xximspot(int x, int y) 1703 { 1704 if (xw.ime.xic == NULL) 1705 return; 1706 1707 xw.ime.spot.x = borderpx + x * win.cw; 1708 xw.ime.spot.y = borderpx + (y + 1) * win.ch; 1709 1710 XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL); 1711 } 1712 1713 void 1714 expose(XEvent *ev) 1715 { 1716 redraw(); 1717 } 1718 1719 void 1720 visibility(XEvent *ev) 1721 { 1722 XVisibilityEvent *e = &ev->xvisibility; 1723 1724 MODBIT(win.mode, e->state != VisibilityFullyObscured, MODE_VISIBLE); 1725 } 1726 1727 void 1728 unmap(XEvent *ev) 1729 { 1730 win.mode &= ~MODE_VISIBLE; 1731 } 1732 1733 void 1734 xsetpointermotion(int set) 1735 { 1736 MODBIT(xw.attrs.event_mask, set, PointerMotionMask); 1737 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); 1738 } 1739 1740 void 1741 xsetmode(int set, unsigned int flags) 1742 { 1743 int mode = win.mode; 1744 MODBIT(win.mode, set, flags); 1745 if ((win.mode & MODE_REVERSE) != (mode & MODE_REVERSE)) 1746 redraw(); 1747 } 1748 1749 int 1750 xsetcursor(int cursor) 1751 { 1752 if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */ 1753 return 1; 1754 win.cursor = cursor; 1755 return 0; 1756 } 1757 1758 void 1759 xseturgency(int add) 1760 { 1761 XWMHints *h = XGetWMHints(xw.dpy, xw.win); 1762 1763 MODBIT(h->flags, add, XUrgencyHint); 1764 XSetWMHints(xw.dpy, xw.win, h); 1765 XFree(h); 1766 } 1767 1768 void 1769 xbell(void) 1770 { 1771 if (!(IS_SET(MODE_FOCUSED))) 1772 xseturgency(1); 1773 if (bellvolume) 1774 XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL); 1775 } 1776 1777 void 1778 focus(XEvent *ev) 1779 { 1780 XFocusChangeEvent *e = &ev->xfocus; 1781 1782 if (e->mode == NotifyGrab) 1783 return; 1784 1785 if (ev->type == FocusIn) { 1786 if (xw.ime.xic) 1787 XSetICFocus(xw.ime.xic); 1788 win.mode |= MODE_FOCUSED; 1789 xseturgency(0); 1790 if (IS_SET(MODE_FOCUS)) 1791 ttywrite("\033[I", 3, 0); 1792 } else { 1793 if (xw.ime.xic) 1794 XUnsetICFocus(xw.ime.xic); 1795 win.mode &= ~MODE_FOCUSED; 1796 if (IS_SET(MODE_FOCUS)) 1797 ttywrite("\033[O", 3, 0); 1798 } 1799 } 1800 1801 int 1802 match(uint mask, uint state) 1803 { 1804 return mask == XK_ANY_MOD || mask == (state & ~ignoremod); 1805 } 1806 1807 char* 1808 kmap(KeySym k, uint state) 1809 { 1810 Key *kp; 1811 int i; 1812 1813 /* Check for mapped keys out of X11 function keys. */ 1814 for (i = 0; i < LEN(mappedkeys); i++) { 1815 if (mappedkeys[i] == k) 1816 break; 1817 } 1818 if (i == LEN(mappedkeys)) { 1819 if ((k & 0xFFFF) < 0xFD00) 1820 return NULL; 1821 } 1822 1823 for (kp = key; kp < key + LEN(key); kp++) { 1824 if (kp->k != k) 1825 continue; 1826 1827 if (!match(kp->mask, state)) 1828 continue; 1829 1830 if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) 1831 continue; 1832 if (IS_SET(MODE_NUMLOCK) && kp->appkey == 2) 1833 continue; 1834 1835 if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) 1836 continue; 1837 1838 return kp->s; 1839 } 1840 1841 return NULL; 1842 } 1843 1844 void 1845 kpress(XEvent *ev) 1846 { 1847 XKeyEvent *e = &ev->xkey; 1848 KeySym ksym = NoSymbol; 1849 char buf[64], *customkey; 1850 int len; 1851 Rune c; 1852 Status status; 1853 Shortcut *bp; 1854 1855 if (IS_SET(MODE_KBDLOCK)) 1856 return; 1857 1858 if (xw.ime.xic) { 1859 len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status); 1860 if (status == XBufferOverflow) 1861 return; 1862 } else { 1863 len = XLookupString(e, buf, sizeof buf, &ksym, NULL); 1864 } 1865 /* 1. shortcuts */ 1866 for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { 1867 if (ksym == bp->keysym && match(bp->mod, e->state)) { 1868 bp->func(&(bp->arg)); 1869 return; 1870 } 1871 } 1872 1873 /* 2. custom keys from config.h */ 1874 if ((customkey = kmap(ksym, e->state))) { 1875 ttywrite(customkey, strlen(customkey), 1); 1876 return; 1877 } 1878 1879 /* 3. composed string from input method */ 1880 if (len == 0) 1881 return; 1882 if (len == 1 && e->state & Mod1Mask) { 1883 if (IS_SET(MODE_8BIT)) { 1884 if (*buf < 0177) { 1885 c = *buf | 0x80; 1886 len = utf8encode(c, buf); 1887 } 1888 } else { 1889 buf[1] = buf[0]; 1890 buf[0] = '\033'; 1891 len = 2; 1892 } 1893 } 1894 ttywrite(buf, len, 1); 1895 } 1896 1897 void 1898 cmessage(XEvent *e) 1899 { 1900 /* 1901 * See xembed specs 1902 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html 1903 */ 1904 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) { 1905 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) { 1906 win.mode |= MODE_FOCUSED; 1907 xseturgency(0); 1908 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { 1909 win.mode &= ~MODE_FOCUSED; 1910 } 1911 } else if (e->xclient.data.l[0] == xw.wmdeletewin) { 1912 ttyhangup(); 1913 exit(0); 1914 } 1915 } 1916 1917 void 1918 resize(XEvent *e) 1919 { 1920 if (e->xconfigure.width == win.w && e->xconfigure.height == win.h) 1921 return; 1922 1923 cresize(e->xconfigure.width, e->xconfigure.height); 1924 } 1925 1926 void 1927 run(void) 1928 { 1929 XEvent ev; 1930 int w = win.w, h = win.h; 1931 fd_set rfd; 1932 int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing; 1933 struct timespec seltv, *tv, now, lastblink, trigger; 1934 double timeout; 1935 1936 /* Waiting for window mapping */ 1937 do { 1938 XNextEvent(xw.dpy, &ev); 1939 /* 1940 * This XFilterEvent call is required because of XOpenIM. It 1941 * does filter out the key event and some client message for 1942 * the input method too. 1943 */ 1944 if (XFilterEvent(&ev, None)) 1945 continue; 1946 if (ev.type == ConfigureNotify) { 1947 w = ev.xconfigure.width; 1948 h = ev.xconfigure.height; 1949 } 1950 } while (ev.type != MapNotify); 1951 1952 ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd); 1953 cresize(w, h); 1954 1955 for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) { 1956 FD_ZERO(&rfd); 1957 FD_SET(ttyfd, &rfd); 1958 FD_SET(xfd, &rfd); 1959 1960 if (XPending(xw.dpy)) 1961 timeout = 0; /* existing events might not set xfd */ 1962 1963 seltv.tv_sec = timeout / 1E3; 1964 seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec); 1965 tv = timeout >= 0 ? &seltv : NULL; 1966 1967 if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) { 1968 if (errno == EINTR) 1969 continue; 1970 die("select failed: %s\n", strerror(errno)); 1971 } 1972 clock_gettime(CLOCK_MONOTONIC, &now); 1973 1974 if (FD_ISSET(ttyfd, &rfd)) 1975 ttyread(); 1976 1977 xev = 0; 1978 while (XPending(xw.dpy)) { 1979 xev = 1; 1980 XNextEvent(xw.dpy, &ev); 1981 if (XFilterEvent(&ev, None)) 1982 continue; 1983 if (handler[ev.type]) 1984 (handler[ev.type])(&ev); 1985 } 1986 1987 /* 1988 * To reduce flicker and tearing, when new content or event 1989 * triggers drawing, we first wait a bit to ensure we got 1990 * everything, and if nothing new arrives - we draw. 1991 * We start with trying to wait minlatency ms. If more content 1992 * arrives sooner, we retry with shorter and shorter periods, 1993 * and eventually draw even without idle after maxlatency ms. 1994 * Typically this results in low latency while interacting, 1995 * maximum latency intervals during `cat huge.txt`, and perfect 1996 * sync with periodic updates from animations/key-repeats/etc. 1997 */ 1998 if (FD_ISSET(ttyfd, &rfd) || xev) { 1999 if (!drawing) { 2000 trigger = now; 2001 drawing = 1; 2002 } 2003 timeout = (maxlatency - TIMEDIFF(now, trigger)) \ 2004 / maxlatency * minlatency; 2005 if (timeout > 0) 2006 continue; /* we have time, try to find idle */ 2007 } 2008 2009 /* idle detected or maxlatency exhausted -> draw */ 2010 timeout = -1; 2011 if (blinktimeout && tattrset(ATTR_BLINK)) { 2012 timeout = blinktimeout - TIMEDIFF(now, lastblink); 2013 if (timeout <= 0) { 2014 if (-timeout > blinktimeout) /* start visible */ 2015 win.mode |= MODE_BLINK; 2016 win.mode ^= MODE_BLINK; 2017 tsetdirtattr(ATTR_BLINK); 2018 lastblink = now; 2019 timeout = blinktimeout; 2020 } 2021 } 2022 2023 draw(); 2024 XFlush(xw.dpy); 2025 drawing = 0; 2026 } 2027 } 2028 2029 void 2030 usage(void) 2031 { 2032 die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]" 2033 " [-n name] [-o file]\n" 2034 " [-T title] [-t title] [-w windowid]" 2035 " [[-e] command [args ...]]\n" 2036 " %s [-aiv] [-c class] [-f font] [-g geometry]" 2037 " [-n name] [-o file]\n" 2038 " [-T title] [-t title] [-w windowid] -l line" 2039 " [stty_args ...]\n", argv0, argv0); 2040 } 2041 2042 void 2043 nextscheme(const Arg *arg) 2044 { 2045 colorscheme += arg->i; 2046 if (colorscheme >= (int)LEN(schemes)) 2047 colorscheme = 0; 2048 else if (colorscheme < 0) 2049 colorscheme = LEN(schemes) - 1; 2050 updatescheme(); 2051 } 2052 2053 void 2054 selectscheme(const Arg *arg) 2055 { 2056 if (BETWEEN(arg->i, 0, LEN(schemes)-1)) { 2057 colorscheme = arg->i; 2058 updatescheme(); 2059 } 2060 } 2061 2062 void 2063 updatescheme(void) 2064 { 2065 int oldbg, oldfg; 2066 2067 oldbg = defaultbg; 2068 oldfg = defaultfg; 2069 colorname = schemes[colorscheme].colors; 2070 defaultbg = schemes[colorscheme].bg; 2071 defaultfg = schemes[colorscheme].fg; 2072 defaultcs = schemes[colorscheme].cs; 2073 defaultrcs = schemes[colorscheme].rcs; 2074 xloadcols(); 2075 if (defaultbg != oldbg) 2076 tupdatebgcolor(oldbg, defaultbg); 2077 if (defaultfg != oldfg) 2078 tupdatefgcolor(oldfg, defaultfg); 2079 cresize(win.w, win.h); 2080 redraw(); 2081 } 2082 2083 int 2084 main(int argc, char *argv[]) 2085 { 2086 xw.l = xw.t = 0; 2087 xw.isfixed = False; 2088 xsetcursor(cursorshape); 2089 2090 ARGBEGIN { 2091 case 'a': 2092 allowaltscreen = 0; 2093 break; 2094 case 'c': 2095 opt_class = EARGF(usage()); 2096 break; 2097 case 'e': 2098 if (argc > 0) 2099 --argc, ++argv; 2100 goto run; 2101 case 'f': 2102 opt_font = EARGF(usage()); 2103 break; 2104 case 'g': 2105 xw.gm = XParseGeometry(EARGF(usage()), 2106 &xw.l, &xw.t, &cols, &rows); 2107 break; 2108 case 'i': 2109 xw.isfixed = 1; 2110 break; 2111 case 'o': 2112 opt_io = EARGF(usage()); 2113 break; 2114 case 'l': 2115 opt_line = EARGF(usage()); 2116 break; 2117 case 'n': 2118 opt_name = EARGF(usage()); 2119 break; 2120 case 't': 2121 case 'T': 2122 opt_title = EARGF(usage()); 2123 break; 2124 case 'w': 2125 opt_embed = EARGF(usage()); 2126 break; 2127 case 'v': 2128 die("%s " VERSION "\n", argv0); 2129 break; 2130 default: 2131 usage(); 2132 } ARGEND; 2133 2134 run: 2135 colorname = schemes[colorscheme].colors; 2136 defaultbg = schemes[colorscheme].bg; 2137 defaultfg = schemes[colorscheme].fg; 2138 defaultcs = schemes[colorscheme].cs; 2139 defaultrcs = schemes[colorscheme].rcs; 2140 2141 if (argc > 0) /* eat all remaining arguments */ 2142 opt_cmd = argv; 2143 2144 if (!opt_title) 2145 opt_title = (opt_line || !opt_cmd) ? "st" : opt_cmd[0]; 2146 2147 setlocale(LC_CTYPE, ""); 2148 XSetLocaleModifiers(""); 2149 cols = MAX(cols, 1); 2150 rows = MAX(rows, 1); 2151 tnew(cols, rows); 2152 xinit(cols, rows); 2153 xsetenv(); 2154 selinit(); 2155 run(); 2156 2157 return 0; 2158 }