x.c - st - simple terminal
HTML git clone https://git.parazyd.org/st
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
x.c (50394B)
---
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 <sys/wait.h>
9 #include <time.h>
10 #include <unistd.h>
11 #include <libgen.h>
12 #include <X11/Xatom.h>
13 #include <X11/Xlib.h>
14 #include <X11/cursorfont.h>
15 #include <X11/keysym.h>
16 #include <X11/Xft/Xft.h>
17 #include <X11/XKBlib.h>
18
19 char *argv0;
20 #include "arg.h"
21 #include "st.h"
22 #include "win.h"
23
24 /* types used in config.h */
25 typedef struct {
26 uint mod;
27 KeySym keysym;
28 void (*func)(const Arg *);
29 const Arg arg;
30 } Shortcut;
31
32 typedef struct {
33 uint mod;
34 uint button;
35 void (*func)(const Arg *);
36 const Arg arg;
37 uint release;
38 } MouseShortcut;
39
40 typedef struct {
41 KeySym k;
42 uint mask;
43 char *s;
44 /* three-valued logic variables: 0 indifferent, 1 on, -1 off */
45 signed char appkey; /* application keypad */
46 signed char appcursor; /* application cursor */
47 } Key;
48
49 /* X modifiers */
50 #define XK_ANY_MOD UINT_MAX
51 #define XK_NO_MOD 0
52 #define XK_SWITCH_MOD (1<<13|1<<14)
53
54 /* function definitions used in config.h */
55 static void clipcopy(const Arg *);
56 static void clippaste(const Arg *);
57 static void numlock(const Arg *);
58 static void selpaste(const Arg *);
59 static void zoom(const Arg *);
60 static void zoomabs(const Arg *);
61 static void zoomreset(const Arg *);
62 static void ttysend(const Arg *);
63 static void invert(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 hborderpx, vborderpx;
87 int ch; /* char height */
88 int cw; /* char width */
89 int mode; /* window state/mode flags */
90 int cursor; /* cursor style */
91 } TermWindow;
92
93 typedef struct {
94 Display *dpy;
95 Colormap cmap;
96 Window win;
97 Drawable buf;
98 GlyphFontSpec *specbuf; /* font spec buffer used for rendering */
99 Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid;
100 struct {
101 XIM xim;
102 XIC xic;
103 XPoint spot;
104 XVaNestedList spotlist;
105 } ime;
106 Draw draw;
107 Visual *vis;
108 XSetWindowAttributes attrs;
109 int scr;
110 int isfixed; /* is fixed geometry? */
111 int depth; /* bit depth */
112 int l, t; /* left and top offset */
113 int gm; /* geometry mask */
114 } XWindow;
115
116 typedef struct {
117 Atom xtarget;
118 char *primary, *clipboard;
119 struct timespec tclick1;
120 struct timespec tclick2;
121 } XSelection;
122
123 /* Font structure */
124 #define Font Font_
125 typedef struct {
126 int height;
127 int width;
128 int ascent;
129 int descent;
130 int badslant;
131 int badweight;
132 short lbearing;
133 short rbearing;
134 XftFont *match;
135 FcFontSet *set;
136 FcPattern *pattern;
137 } Font;
138
139 /* Drawing Context */
140 typedef struct {
141 Color *col;
142 size_t collen;
143 Font font, bfont, ifont, ibfont;
144 GC gc;
145 } DC;
146
147 static inline ushort sixd_to_16bit(int);
148 static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int);
149 static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int);
150 static void xdrawglyph(Glyph, int, int);
151 static void xclear(int, int, int, int);
152 static int xgeommasktogravity(int);
153 static int ximopen(Display *);
154 static void ximinstantiate(Display *, XPointer, XPointer);
155 static void ximdestroy(XIM, XPointer, XPointer);
156 static int xicdestroy(XIC, XPointer, XPointer);
157 static void xinit(int, int);
158 static void cresize(int, int);
159 static void xresize(int, int);
160 static void xhints(void);
161 static int xloadcolor(int, const char *, Color *);
162 static int xloadfont(Font *, FcPattern *);
163 static void xloadfonts(const char *, double);
164 static void xunloadfont(Font *);
165 static void xunloadfonts(void);
166 static void xsetenv(void);
167 static void xseturgency(int);
168 static int evcol(XEvent *);
169 static int evrow(XEvent *);
170
171 static void expose(XEvent *);
172 static void visibility(XEvent *);
173 static void unmap(XEvent *);
174 static void kpress(XEvent *);
175 static void cmessage(XEvent *);
176 static void resize(XEvent *);
177 static void focus(XEvent *);
178 static uint buttonmask(uint);
179 static int mouseaction(XEvent *, uint);
180 static void brelease(XEvent *);
181 static void bpress(XEvent *);
182 static void bmotion(XEvent *);
183 static void propnotify(XEvent *);
184 static void selnotify(XEvent *);
185 static void selclear_(XEvent *);
186 static void selrequest(XEvent *);
187 static void setsel(char *, Time);
188 static void mousesel(XEvent *, int);
189 static void mousereport(XEvent *);
190 static char *kmap(KeySym, uint);
191 static int match(uint, uint);
192
193 static void run(void);
194 static void usage(void);
195
196 static void (*handler[LASTEvent])(XEvent *) = {
197 [KeyPress] = kpress,
198 [ClientMessage] = cmessage,
199 [ConfigureNotify] = resize,
200 [VisibilityNotify] = visibility,
201 [UnmapNotify] = unmap,
202 [Expose] = expose,
203 [FocusIn] = focus,
204 [FocusOut] = focus,
205 [MotionNotify] = bmotion,
206 [ButtonPress] = bpress,
207 [ButtonRelease] = brelease,
208 /*
209 * Uncomment if you want the selection to disappear when you select something
210 * different in another window.
211 */
212 /* [SelectionClear] = selclear_, */
213 [SelectionNotify] = selnotify,
214 /*
215 * PropertyNotify is only turned on when there is some INCR transfer happening
216 * for the selection retrieval.
217 */
218 [PropertyNotify] = propnotify,
219 [SelectionRequest] = selrequest,
220 };
221
222 /* Globals */
223 static DC dc;
224 static XWindow xw;
225 static XSelection xsel;
226 static TermWindow win;
227
228 /* Font Ring Cache */
229 enum {
230 FRC_NORMAL,
231 FRC_ITALIC,
232 FRC_BOLD,
233 FRC_ITALICBOLD
234 };
235
236 typedef struct {
237 XftFont *font;
238 int flags;
239 Rune unicodep;
240 } Fontcache;
241
242 /* Fontcache is an array now. A new font will be appended to the array. */
243 static Fontcache *frc = NULL;
244 static int frclen = 0;
245 static int frccap = 0;
246 static char *usedfont = NULL;
247 static double usedfontsize = 0;
248 static double defaultfontsize = 0;
249
250 static char *opt_alpha = NULL;
251 static char *opt_class = NULL;
252 static char **opt_cmd = NULL;
253 static char *opt_embed = NULL;
254 static char *opt_font = NULL;
255 static char *opt_io = NULL;
256 static char *opt_line = NULL;
257 static char *opt_name = NULL;
258 static char *opt_title = NULL;
259
260 static int invertcolors = 0;
261 static uint buttons; /* bit field of pressed buttons */
262
263 void
264 invert(const Arg *dummy)
265 {
266 invertcolors = !invertcolors;
267 redraw();
268 }
269
270 Color
271 invertedcolor(Color *clr)
272 {
273 XRenderColor rc;
274 Color inverted;
275
276 rc.red = ~clr->color.red;
277 rc.green = ~clr->color.green;
278 rc.blue = ~clr->color.blue;
279 rc.alpha = clr->color.alpha;
280 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &rc, &inverted);
281
282 return inverted;
283 }
284
285 void
286 clipcopy(const Arg *dummy)
287 {
288 Atom clipboard;
289
290 free(xsel.clipboard);
291 xsel.clipboard = NULL;
292
293 if (xsel.primary != NULL) {
294 xsel.clipboard = xstrdup(xsel.primary);
295 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
296 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
297 }
298 }
299
300 void
301 clippaste(const Arg *dummy)
302 {
303 Atom clipboard;
304
305 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
306 XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard,
307 xw.win, CurrentTime);
308 }
309
310 void
311 selpaste(const Arg *dummy)
312 {
313 XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY,
314 xw.win, CurrentTime);
315 }
316
317 void
318 numlock(const Arg *dummy)
319 {
320 win.mode ^= MODE_NUMLOCK;
321 }
322
323 void
324 zoom(const Arg *arg)
325 {
326 Arg larg;
327
328 larg.f = usedfontsize + arg->f;
329 zoomabs(&larg);
330 }
331
332 void
333 zoomabs(const Arg *arg)
334 {
335 xunloadfonts();
336 xloadfonts(usedfont, arg->f);
337 cresize(0, 0);
338 redraw();
339 xhints();
340 }
341
342 void
343 zoomreset(const Arg *arg)
344 {
345 Arg larg;
346
347 if (defaultfontsize > 0) {
348 larg.f = defaultfontsize;
349 zoomabs(&larg);
350 }
351 }
352
353 void
354 ttysend(const Arg *arg)
355 {
356 ttywrite(arg->s, strlen(arg->s), 1);
357 }
358
359 int
360 evcol(XEvent *e)
361 {
362 int x = e->xbutton.x - win.hborderpx;
363 LIMIT(x, 0, win.tw - 1);
364 return x / win.cw;
365 }
366
367 int
368 evrow(XEvent *e)
369 {
370 int y = e->xbutton.y - win.vborderpx;
371 LIMIT(y, 0, win.th - 1);
372 return y / win.ch;
373 }
374
375 void
376 mousesel(XEvent *e, int done)
377 {
378 int type, seltype = SEL_REGULAR;
379 uint state = e->xbutton.state & ~(Button1Mask | forcemousemod);
380
381 for (type = 1; type < LEN(selmasks); ++type) {
382 if (match(selmasks[type], state)) {
383 seltype = type;
384 break;
385 }
386 }
387 selextend(evcol(e), evrow(e), seltype, done);
388 if (done)
389 setsel(getsel(), e->xbutton.time);
390 }
391
392 void
393 mousereport(XEvent *e)
394 {
395 int len, btn, code;
396 int x = evcol(e), y = evrow(e);
397 int state = e->xbutton.state;
398 char buf[40];
399 static int ox, oy;
400
401 if (e->type == MotionNotify) {
402 if (x == ox && y == oy)
403 return;
404 if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
405 return;
406 /* MODE_MOUSEMOTION: no reporting if no button is pressed */
407 if (IS_SET(MODE_MOUSEMOTION) && buttons == 0)
408 return;
409 /* Set btn to lowest-numbered pressed button, or 12 if no
410 * buttons are pressed. */
411 for (btn = 1; btn <= 11 && !(buttons & (1<<(btn-1))); btn++)
412 ;
413 code = 32;
414 } else {
415 btn = e->xbutton.button;
416 /* Only buttons 1 through 11 can be encoded */
417 if (btn < 1 || btn > 11)
418 return;
419 if (e->type == ButtonRelease) {
420 /* MODE_MOUSEX10: no button release reporting */
421 if (IS_SET(MODE_MOUSEX10))
422 return;
423 /* Don't send release events for the scroll wheel */
424 if (btn == 4 || btn == 5)
425 return;
426 }
427 code = 0;
428 }
429
430 ox = x;
431 oy = y;
432
433 /* Encode btn into code. If no button is pressed for a motion event in
434 * MODE_MOUSEMANY, then encode it as a release. */
435 if ((!IS_SET(MODE_MOUSESGR) && e->type == ButtonRelease) || btn == 12)
436 code += 3;
437 else if (btn >= 8)
438 code += 128 + btn - 8;
439 else if (btn >= 4)
440 code += 64 + btn - 4;
441 else
442 code += btn - 1;
443
444 if (!IS_SET(MODE_MOUSEX10)) {
445 code += ((state & ShiftMask ) ? 4 : 0)
446 + ((state & Mod1Mask ) ? 8 : 0) /* meta key: alt */
447 + ((state & ControlMask) ? 16 : 0);
448 }
449
450 if (IS_SET(MODE_MOUSESGR)) {
451 len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
452 code, x+1, y+1,
453 e->type == ButtonRelease ? 'm' : 'M');
454 } else if (x < 223 && y < 223) {
455 len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
456 32+code, 32+x+1, 32+y+1);
457 } else {
458 return;
459 }
460
461 ttywrite(buf, len, 0);
462 }
463
464 uint
465 buttonmask(uint button)
466 {
467 return button == Button1 ? Button1Mask
468 : button == Button2 ? Button2Mask
469 : button == Button3 ? Button3Mask
470 : button == Button4 ? Button4Mask
471 : button == Button5 ? Button5Mask
472 : 0;
473 }
474
475 int
476 mouseaction(XEvent *e, uint release)
477 {
478 MouseShortcut *ms;
479
480 /* ignore Button<N>mask for Button<N> - it's set on release */
481 uint state = e->xbutton.state & ~buttonmask(e->xbutton.button);
482
483 for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
484 if (ms->release == release &&
485 ms->button == e->xbutton.button &&
486 (match(ms->mod, state) || /* exact or forced */
487 match(ms->mod, state & ~forcemousemod))) {
488 ms->func(&(ms->arg));
489 return 1;
490 }
491 }
492
493 return 0;
494 }
495
496 void
497 bpress(XEvent *e)
498 {
499 int btn = e->xbutton.button;
500 struct timespec now;
501 int snap;
502
503 if (1 <= btn && btn <= 11)
504 buttons |= 1 << (btn-1);
505
506 if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
507 mousereport(e);
508 return;
509 }
510
511 if (mouseaction(e, 0))
512 return;
513
514 if (btn == Button1) {
515 /*
516 * If the user clicks below predefined timeouts specific
517 * snapping behaviour is exposed.
518 */
519 clock_gettime(CLOCK_MONOTONIC, &now);
520 if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) {
521 snap = SNAP_LINE;
522 } else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) {
523 snap = SNAP_WORD;
524 } else {
525 snap = 0;
526 }
527 xsel.tclick2 = xsel.tclick1;
528 xsel.tclick1 = now;
529
530 selstart(evcol(e), evrow(e), snap);
531 }
532 }
533
534 void
535 propnotify(XEvent *e)
536 {
537 XPropertyEvent *xpev;
538 Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
539
540 xpev = &e->xproperty;
541 if (xpev->state == PropertyNewValue &&
542 (xpev->atom == XA_PRIMARY ||
543 xpev->atom == clipboard)) {
544 selnotify(e);
545 }
546 }
547
548 void
549 selnotify(XEvent *e)
550 {
551 ulong nitems, ofs, rem;
552 int format;
553 uchar *data, *last, *repl;
554 Atom type, incratom, property = None;
555
556 incratom = XInternAtom(xw.dpy, "INCR", 0);
557
558 ofs = 0;
559 if (e->type == SelectionNotify)
560 property = e->xselection.property;
561 else if (e->type == PropertyNotify)
562 property = e->xproperty.atom;
563
564 if (property == None)
565 return;
566
567 do {
568 if (XGetWindowProperty(xw.dpy, xw.win, property, ofs,
569 BUFSIZ/4, False, AnyPropertyType,
570 &type, &format, &nitems, &rem,
571 &data)) {
572 fprintf(stderr, "Clipboard allocation failed\n");
573 return;
574 }
575
576 if (e->type == PropertyNotify && nitems == 0 && rem == 0) {
577 /*
578 * If there is some PropertyNotify with no data, then
579 * this is the signal of the selection owner that all
580 * data has been transferred. We won't need to receive
581 * PropertyNotify events anymore.
582 */
583 MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask);
584 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
585 &xw.attrs);
586 }
587
588 if (type == incratom) {
589 /*
590 * Activate the PropertyNotify events so we receive
591 * when the selection owner does send us the next
592 * chunk of data.
593 */
594 MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask);
595 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask,
596 &xw.attrs);
597
598 /*
599 * Deleting the property is the transfer start signal.
600 */
601 XDeleteProperty(xw.dpy, xw.win, (int)property);
602 continue;
603 }
604
605 /*
606 * As seen in getsel:
607 * Line endings are inconsistent in the terminal and GUI world
608 * copy and pasting. When receiving some selection data,
609 * replace all '\n' with '\r'.
610 * FIXME: Fix the computer world.
611 */
612 repl = data;
613 last = data + nitems * format / 8;
614 while ((repl = memchr(repl, '\n', last - repl))) {
615 *repl++ = '\r';
616 }
617
618 if (IS_SET(MODE_BRCKTPASTE) && ofs == 0)
619 ttywrite("\033[200~", 6, 0);
620 ttywrite((char *)data, nitems * format / 8, 1);
621 if (IS_SET(MODE_BRCKTPASTE) && rem == 0)
622 ttywrite("\033[201~", 6, 0);
623 XFree(data);
624 /* number of 32-bit chunks returned */
625 ofs += nitems * format / 32;
626 } while (rem > 0);
627
628 /*
629 * Deleting the property again tells the selection owner to send the
630 * next data chunk in the property.
631 */
632 XDeleteProperty(xw.dpy, xw.win, (int)property);
633 }
634
635 void
636 xclipcopy(void)
637 {
638 clipcopy(NULL);
639 }
640
641 void
642 selclear_(XEvent *e)
643 {
644 selclear();
645 }
646
647 void
648 selrequest(XEvent *e)
649 {
650 XSelectionRequestEvent *xsre;
651 XSelectionEvent xev;
652 Atom xa_targets, string, clipboard;
653 char *seltext;
654
655 xsre = (XSelectionRequestEvent *) e;
656 xev.type = SelectionNotify;
657 xev.requestor = xsre->requestor;
658 xev.selection = xsre->selection;
659 xev.target = xsre->target;
660 xev.time = xsre->time;
661 if (xsre->property == None)
662 xsre->property = xsre->target;
663
664 /* reject */
665 xev.property = None;
666
667 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
668 if (xsre->target == xa_targets) {
669 /* respond with the supported type */
670 string = xsel.xtarget;
671 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
672 XA_ATOM, 32, PropModeReplace,
673 (uchar *) &string, 1);
674 xev.property = xsre->property;
675 } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) {
676 /*
677 * xith XA_STRING non ascii characters may be incorrect in the
678 * requestor. It is not our problem, use utf8.
679 */
680 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
681 if (xsre->selection == XA_PRIMARY) {
682 seltext = xsel.primary;
683 } else if (xsre->selection == clipboard) {
684 seltext = xsel.clipboard;
685 } else {
686 fprintf(stderr,
687 "Unhandled clipboard selection 0x%lx\n",
688 xsre->selection);
689 return;
690 }
691 if (seltext != NULL) {
692 XChangeProperty(xsre->display, xsre->requestor,
693 xsre->property, xsre->target,
694 8, PropModeReplace,
695 (uchar *)seltext, strlen(seltext));
696 xev.property = xsre->property;
697 }
698 }
699
700 /* all done, send a notification to the listener */
701 if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev))
702 fprintf(stderr, "Error sending SelectionNotify event\n");
703 }
704
705 void
706 setsel(char *str, Time t)
707 {
708 if (!str)
709 return;
710
711 free(xsel.primary);
712 xsel.primary = str;
713
714 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t);
715 if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win)
716 selclear();
717 }
718
719 void
720 xsetsel(char *str)
721 {
722 setsel(str, CurrentTime);
723 }
724
725 void
726 plumb(char *sel)
727 {
728 if (sel == NULL)
729 return;
730
731 char cwd[PATH_MAX];
732 pid_t child;
733 if (subprocwd(cwd) != 0)
734 return;
735
736 switch (child = fork()) {
737 case -1:
738 return;
739 case 0:
740 if (chdir(cwd) != 0)
741 exit(1);
742 if (execvp(plumb_cmd, (char *const []){plumb_cmd, sel, 0}) == -1)
743 exit(1);
744 exit(0);
745 default:
746 waitpid(child, NULL, 0);
747 }
748 }
749
750 void
751 brelease(XEvent *e)
752 {
753 int btn = e->xbutton.button;
754
755 if (1 <= btn && btn <= 11)
756 buttons &= ~(1 << (btn-1));
757
758 if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
759 mousereport(e);
760 return;
761 }
762
763 if (mouseaction(e, 1))
764 return;
765 if (btn == Button1)
766 mousesel(e, 1);
767 else if (btn == Button3)
768 plumb(xsel.primary);
769 }
770
771 void
772 bmotion(XEvent *e)
773 {
774 if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) {
775 mousereport(e);
776 return;
777 }
778
779 mousesel(e, 0);
780 }
781
782 void
783 cresize(int width, int height)
784 {
785 int col, row;
786
787 if (width != 0)
788 win.w = width;
789 if (height != 0)
790 win.h = height;
791
792 col = (win.w - 2 * borderpx) / win.cw;
793 row = (win.h - 2 * borderpx) / win.ch;
794 col = MAX(1, col);
795 row = MAX(1, row);
796
797 win.hborderpx = (win.w - col * win.cw) / 2;
798 win.vborderpx = (win.h - row * win.ch) / 2;
799
800 tresize(col, row);
801 xresize(col, row);
802 ttyresize(win.tw, win.th);
803 }
804
805 void
806 xresize(int col, int row)
807 {
808 win.tw = col * win.cw;
809 win.th = row * win.ch;
810
811 XFreePixmap(xw.dpy, xw.buf);
812 xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
813 XftDrawChange(xw.draw, xw.buf);
814 xclear(0, 0, win.w, win.h);
815
816 /* resize to new width */
817 xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec));
818 }
819
820 ushort
821 sixd_to_16bit(int x)
822 {
823 return x == 0 ? 0 : 0x3737 + 0x2828 * x;
824 }
825
826 int
827 xloadcolor(int i, const char *name, Color *ncolor)
828 {
829 XRenderColor color = { .alpha = 0xffff };
830
831 if (!name) {
832 if (BETWEEN(i, 16, 255)) { /* 256 color */
833 if (i < 6*6*6+16) { /* same colors as xterm */
834 color.red = sixd_to_16bit( ((i-16)/36)%6 );
835 color.green = sixd_to_16bit( ((i-16)/6) %6 );
836 color.blue = sixd_to_16bit( ((i-16)/1) %6 );
837 } else { /* greyscale */
838 color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16));
839 color.green = color.blue = color.red;
840 }
841 return XftColorAllocValue(xw.dpy, xw.vis,
842 xw.cmap, &color, ncolor);
843 } else
844 name = colorname[i];
845 }
846
847 return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
848 }
849
850 void
851 xloadcols(void)
852 {
853 int i;
854 static int loaded;
855 Color *cp;
856
857 if (loaded) {
858 for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
859 XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
860 } else {
861 dc.collen = MAX(LEN(colorname), 256);
862 dc.col = xmalloc(dc.collen * sizeof(Color));
863 }
864
865 for (i = 0; i < dc.collen; i++)
866 if (!xloadcolor(i, NULL, &dc.col[i])) {
867 if (colorname[i])
868 die("could not allocate color '%s'\n", colorname[i]);
869 else
870 die("could not allocate color %d\n", i);
871 }
872
873 /* set alpha value of bg color */
874 if (opt_alpha)
875 alpha = strtof(opt_alpha, NULL);
876 dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha);
877 dc.col[defaultbg].pixel &= 0x00FFFFFF;
878 dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24;
879 loaded = 1;
880 }
881
882 int
883 xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b)
884 {
885 if (!BETWEEN(x, 0, dc.collen))
886 return 1;
887
888 *r = dc.col[x].color.red >> 8;
889 *g = dc.col[x].color.green >> 8;
890 *b = dc.col[x].color.blue >> 8;
891
892 return 0;
893 }
894
895 int
896 xsetcolorname(int x, const char *name)
897 {
898 Color ncolor;
899
900 if (!BETWEEN(x, 0, dc.collen))
901 return 1;
902
903 if (!xloadcolor(x, name, &ncolor))
904 return 1;
905
906 XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
907 dc.col[x] = ncolor;
908
909 return 0;
910 }
911
912 /*
913 * Absolute coordinates.
914 */
915 void
916 xclear(int x1, int y1, int x2, int y2)
917 {
918 Color c;
919
920 c = dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg];
921 if (invertcolors)
922 c = invertedcolor(&c);
923
924 XftDrawRect(xw.draw, &c, x1, y1, x2-x1, y2-y1);
925 }
926
927 void
928 xhints(void)
929 {
930 XClassHint class = {opt_name ? opt_name : termname,
931 opt_class ? opt_class : termname};
932 XWMHints wm = {.flags = InputHint, .input = 1};
933 XSizeHints *sizeh;
934
935 sizeh = XAllocSizeHints();
936
937 sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize;
938 sizeh->height = win.h;
939 sizeh->width = win.w;
940 sizeh->height_inc = 1;
941 sizeh->width_inc = 1;
942 sizeh->base_height = 2 * borderpx;
943 sizeh->base_width = 2 * borderpx;
944 sizeh->min_height = win.ch + 2 * borderpx;
945 sizeh->min_width = win.cw + 2 * borderpx;
946 if (xw.isfixed) {
947 sizeh->flags |= PMaxSize;
948 sizeh->min_width = sizeh->max_width = win.w;
949 sizeh->min_height = sizeh->max_height = win.h;
950 }
951 if (xw.gm & (XValue|YValue)) {
952 sizeh->flags |= USPosition | PWinGravity;
953 sizeh->x = xw.l;
954 sizeh->y = xw.t;
955 sizeh->win_gravity = xgeommasktogravity(xw.gm);
956 }
957
958 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
959 &class);
960 XFree(sizeh);
961 }
962
963 int
964 xgeommasktogravity(int mask)
965 {
966 switch (mask & (XNegative|YNegative)) {
967 case 0:
968 return NorthWestGravity;
969 case XNegative:
970 return NorthEastGravity;
971 case YNegative:
972 return SouthWestGravity;
973 }
974
975 return SouthEastGravity;
976 }
977
978 int
979 xloadfont(Font *f, FcPattern *pattern)
980 {
981 FcPattern *configured;
982 FcPattern *match;
983 FcResult result;
984 XGlyphInfo extents;
985 int wantattr, haveattr;
986
987 /*
988 * Manually configure instead of calling XftMatchFont
989 * so that we can use the configured pattern for
990 * "missing glyph" lookups.
991 */
992 configured = FcPatternDuplicate(pattern);
993 if (!configured)
994 return 1;
995
996 FcConfigSubstitute(NULL, configured, FcMatchPattern);
997 XftDefaultSubstitute(xw.dpy, xw.scr, configured);
998
999 match = FcFontMatch(NULL, configured, &result);
1000 if (!match) {
1001 FcPatternDestroy(configured);
1002 return 1;
1003 }
1004
1005 if (!(f->match = XftFontOpenPattern(xw.dpy, match))) {
1006 FcPatternDestroy(configured);
1007 FcPatternDestroy(match);
1008 return 1;
1009 }
1010
1011 if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) ==
1012 XftResultMatch)) {
1013 /*
1014 * Check if xft was unable to find a font with the appropriate
1015 * slant but gave us one anyway. Try to mitigate.
1016 */
1017 if ((XftPatternGetInteger(f->match->pattern, "slant", 0,
1018 &haveattr) != XftResultMatch) || haveattr < wantattr) {
1019 f->badslant = 1;
1020 fputs("font slant does not match\n", stderr);
1021 }
1022 }
1023
1024 if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) ==
1025 XftResultMatch)) {
1026 if ((XftPatternGetInteger(f->match->pattern, "weight", 0,
1027 &haveattr) != XftResultMatch) || haveattr != wantattr) {
1028 f->badweight = 1;
1029 fputs("font weight does not match\n", stderr);
1030 }
1031 }
1032
1033 XftTextExtentsUtf8(xw.dpy, f->match,
1034 (const FcChar8 *) ascii_printable,
1035 strlen(ascii_printable), &extents);
1036
1037 f->set = NULL;
1038 f->pattern = configured;
1039
1040 f->ascent = f->match->ascent;
1041 f->descent = f->match->descent;
1042 f->lbearing = 0;
1043 f->rbearing = f->match->max_advance_width;
1044
1045 f->height = f->ascent + f->descent;
1046 f->width = DIVCEIL(extents.xOff, strlen(ascii_printable));
1047
1048 return 0;
1049 }
1050
1051 void
1052 xloadfonts(const char *fontstr, double fontsize)
1053 {
1054 FcPattern *pattern;
1055 double fontval;
1056
1057 if (fontstr[0] == '-')
1058 pattern = XftXlfdParse(fontstr, False, False);
1059 else
1060 pattern = FcNameParse((const FcChar8 *)fontstr);
1061
1062 if (!pattern)
1063 die("can't open font %s\n", fontstr);
1064
1065 if (fontsize > 1) {
1066 FcPatternDel(pattern, FC_PIXEL_SIZE);
1067 FcPatternDel(pattern, FC_SIZE);
1068 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
1069 usedfontsize = fontsize;
1070 } else {
1071 if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) ==
1072 FcResultMatch) {
1073 usedfontsize = fontval;
1074 } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) ==
1075 FcResultMatch) {
1076 usedfontsize = -1;
1077 } else {
1078 /*
1079 * Default font size is 12, if none given. This is to
1080 * have a known usedfontsize value.
1081 */
1082 FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
1083 usedfontsize = 12;
1084 }
1085 defaultfontsize = usedfontsize;
1086 }
1087
1088 if (xloadfont(&dc.font, pattern))
1089 die("can't open font %s\n", fontstr);
1090
1091 if (usedfontsize < 0) {
1092 FcPatternGetDouble(dc.font.match->pattern,
1093 FC_PIXEL_SIZE, 0, &fontval);
1094 usedfontsize = fontval;
1095 if (fontsize == 0)
1096 defaultfontsize = fontval;
1097 }
1098
1099 /* Setting character width and height. */
1100 win.cw = ceilf(dc.font.width * cwscale);
1101 win.ch = ceilf(dc.font.height * chscale);
1102
1103 FcPatternDel(pattern, FC_SLANT);
1104 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
1105 if (xloadfont(&dc.ifont, pattern))
1106 die("can't open font %s\n", fontstr);
1107
1108 FcPatternDel(pattern, FC_WEIGHT);
1109 FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
1110 if (xloadfont(&dc.ibfont, pattern))
1111 die("can't open font %s\n", fontstr);
1112
1113 FcPatternDel(pattern, FC_SLANT);
1114 FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
1115 if (xloadfont(&dc.bfont, pattern))
1116 die("can't open font %s\n", fontstr);
1117
1118 FcPatternDestroy(pattern);
1119 }
1120
1121 void
1122 xunloadfont(Font *f)
1123 {
1124 XftFontClose(xw.dpy, f->match);
1125 FcPatternDestroy(f->pattern);
1126 if (f->set)
1127 FcFontSetDestroy(f->set);
1128 }
1129
1130 void
1131 xunloadfonts(void)
1132 {
1133 /* Free the loaded fonts in the font cache. */
1134 while (frclen > 0)
1135 XftFontClose(xw.dpy, frc[--frclen].font);
1136
1137 xunloadfont(&dc.font);
1138 xunloadfont(&dc.bfont);
1139 xunloadfont(&dc.ifont);
1140 xunloadfont(&dc.ibfont);
1141 }
1142
1143 int
1144 ximopen(Display *dpy)
1145 {
1146 XIMCallback imdestroy = { .client_data = NULL, .callback = ximdestroy };
1147 XICCallback icdestroy = { .client_data = NULL, .callback = xicdestroy };
1148
1149 xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1150 if (xw.ime.xim == NULL)
1151 return 0;
1152
1153 if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL))
1154 fprintf(stderr, "XSetIMValues: "
1155 "Could not set XNDestroyCallback.\n");
1156
1157 xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot,
1158 NULL);
1159
1160 if (xw.ime.xic == NULL) {
1161 xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle,
1162 XIMPreeditNothing | XIMStatusNothing,
1163 XNClientWindow, xw.win,
1164 XNDestroyCallback, &icdestroy,
1165 NULL);
1166 }
1167 if (xw.ime.xic == NULL)
1168 fprintf(stderr, "XCreateIC: Could not create input context.\n");
1169
1170 return 1;
1171 }
1172
1173 void
1174 ximinstantiate(Display *dpy, XPointer client, XPointer call)
1175 {
1176 if (ximopen(dpy))
1177 XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
1178 ximinstantiate, NULL);
1179 }
1180
1181 void
1182 ximdestroy(XIM xim, XPointer client, XPointer call)
1183 {
1184 xw.ime.xim = NULL;
1185 XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
1186 ximinstantiate, NULL);
1187 XFree(xw.ime.spotlist);
1188 }
1189
1190 int
1191 xicdestroy(XIC xim, XPointer client, XPointer call)
1192 {
1193 xw.ime.xic = NULL;
1194 return 1;
1195 }
1196
1197 void
1198 xinit(int cols, int rows)
1199 {
1200 XGCValues gcvalues;
1201 Cursor cursor;
1202 Window parent;
1203 pid_t thispid = getpid();
1204 XColor xmousefg, xmousebg;
1205 XWindowAttributes attr;
1206 XVisualInfo vis;
1207
1208 if (!(xw.dpy = XOpenDisplay(NULL)))
1209 die("can't open display\n");
1210 xw.scr = XDefaultScreen(xw.dpy);
1211
1212 if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) {
1213 parent = XRootWindow(xw.dpy, xw.scr);
1214 xw.depth = 32;
1215 } else {
1216 XGetWindowAttributes(xw.dpy, parent, &attr);
1217 xw.depth = attr.depth;
1218 }
1219
1220 XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis);
1221 xw.vis = vis.visual;
1222
1223 /* font */
1224 if (!FcInit())
1225 die("could not init fontconfig.\n");
1226
1227 usedfont = (opt_font == NULL)? font : opt_font;
1228 xloadfonts(usedfont, 0);
1229
1230 /* colors */
1231 xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None);
1232 xloadcols();
1233
1234 /* adjust fixed window geometry */
1235 win.w = 2 * win.hborderpx + 2 * borderpx + cols * win.cw;
1236 win.h = 2 * win.vborderpx + 2 * borderpx + rows * win.ch;
1237 if (xw.gm & XNegative)
1238 xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
1239 if (xw.gm & YNegative)
1240 xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2;
1241
1242 /* Events */
1243 xw.attrs.background_pixel = dc.col[defaultbg].pixel;
1244 xw.attrs.border_pixel = dc.col[defaultbg].pixel;
1245 xw.attrs.bit_gravity = NorthWestGravity;
1246 xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask
1247 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1248 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
1249 xw.attrs.colormap = xw.cmap;
1250
1251 xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
1252 win.w, win.h, 0, xw.depth, InputOutput,
1253 xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
1254 | CWEventMask | CWColormap, &xw.attrs);
1255
1256 memset(&gcvalues, 0, sizeof(gcvalues));
1257 gcvalues.graphics_exposures = False;
1258 xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth);
1259 dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues);
1260 XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
1261 XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
1262
1263 /* font spec buffer */
1264 xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec));
1265
1266 /* Xft rendering context */
1267 xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
1268
1269 /* input methods */
1270 if (!ximopen(xw.dpy)) {
1271 XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL,
1272 ximinstantiate, NULL);
1273 }
1274
1275 /* white cursor, black outline */
1276 cursor = XCreateFontCursor(xw.dpy, mouseshape);
1277 XDefineCursor(xw.dpy, xw.win, cursor);
1278
1279 if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) {
1280 xmousefg.red = 0xffff;
1281 xmousefg.green = 0xffff;
1282 xmousefg.blue = 0xffff;
1283 }
1284
1285 if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) {
1286 xmousebg.red = 0x0000;
1287 xmousebg.green = 0x0000;
1288 xmousebg.blue = 0x0000;
1289 }
1290
1291 XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg);
1292
1293 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1294 xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
1295 xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
1296 xw.netwmiconname = XInternAtom(xw.dpy, "_NET_WM_ICON_NAME", False);
1297 XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
1298
1299 xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
1300 XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
1301 PropModeReplace, (uchar *)&thispid, 1);
1302
1303 win.mode = MODE_NUMLOCK;
1304 resettitle();
1305 xhints();
1306 XMapWindow(xw.dpy, xw.win);
1307 XSync(xw.dpy, False);
1308
1309 clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1);
1310 clock_gettime(CLOCK_MONOTONIC, &xsel.tclick2);
1311 xsel.primary = NULL;
1312 xsel.clipboard = NULL;
1313 xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
1314 if (xsel.xtarget == None)
1315 xsel.xtarget = XA_STRING;
1316 }
1317
1318 int
1319 xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y)
1320 {
1321 float winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch, xp, yp;
1322 ushort mode, prevmode = USHRT_MAX;
1323 Font *font = &dc.font;
1324 int frcflags = FRC_NORMAL;
1325 float runewidth = win.cw;
1326 Rune rune;
1327 FT_UInt glyphidx;
1328 FcResult fcres;
1329 FcPattern *fcpattern, *fontpattern;
1330 FcFontSet *fcsets[] = { NULL };
1331 FcCharSet *fccharset;
1332 int i, f, numspecs = 0;
1333
1334 for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
1335 /* Fetch rune and mode for current glyph. */
1336 rune = glyphs[i].u;
1337 mode = glyphs[i].mode;
1338
1339 /* Skip dummy wide-character spacing. */
1340 if (mode == ATTR_WDUMMY)
1341 continue;
1342
1343 /* Determine font for glyph if different from previous glyph. */
1344 if (prevmode != mode) {
1345 prevmode = mode;
1346 font = &dc.font;
1347 frcflags = FRC_NORMAL;
1348 runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f);
1349 if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) {
1350 font = &dc.ibfont;
1351 frcflags = FRC_ITALICBOLD;
1352 } else if (mode & ATTR_ITALIC) {
1353 font = &dc.ifont;
1354 frcflags = FRC_ITALIC;
1355 } else if (mode & ATTR_BOLD) {
1356 font = &dc.bfont;
1357 frcflags = FRC_BOLD;
1358 }
1359 yp = winy + font->ascent;
1360 }
1361
1362 /* Lookup character index with default font. */
1363 glyphidx = XftCharIndex(xw.dpy, font->match, rune);
1364 if (glyphidx) {
1365 specs[numspecs].font = font->match;
1366 specs[numspecs].glyph = glyphidx;
1367 specs[numspecs].x = (short)xp;
1368 specs[numspecs].y = (short)yp;
1369 xp += runewidth;
1370 numspecs++;
1371 continue;
1372 }
1373
1374 /* Fallback on font cache, search the font cache for match. */
1375 for (f = 0; f < frclen; f++) {
1376 glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune);
1377 /* Everything correct. */
1378 if (glyphidx && frc[f].flags == frcflags)
1379 break;
1380 /* We got a default font for a not found glyph. */
1381 if (!glyphidx && frc[f].flags == frcflags
1382 && frc[f].unicodep == rune) {
1383 break;
1384 }
1385 }
1386
1387 /* Nothing was found. Use fontconfig to find matching font. */
1388 if (f >= frclen) {
1389 if (!font->set)
1390 font->set = FcFontSort(0, font->pattern,
1391 1, 0, &fcres);
1392 fcsets[0] = font->set;
1393
1394 /*
1395 * Nothing was found in the cache. Now use
1396 * some dozen of Fontconfig calls to get the
1397 * font for one single character.
1398 *
1399 * Xft and fontconfig are design failures.
1400 */
1401 fcpattern = FcPatternDuplicate(font->pattern);
1402 fccharset = FcCharSetCreate();
1403
1404 FcCharSetAddChar(fccharset, rune);
1405 FcPatternAddCharSet(fcpattern, FC_CHARSET,
1406 fccharset);
1407 FcPatternAddBool(fcpattern, FC_SCALABLE, 1);
1408
1409 FcConfigSubstitute(0, fcpattern,
1410 FcMatchPattern);
1411 FcDefaultSubstitute(fcpattern);
1412
1413 fontpattern = FcFontSetMatch(0, fcsets, 1,
1414 fcpattern, &fcres);
1415
1416 /* Allocate memory for the new cache entry. */
1417 if (frclen >= frccap) {
1418 frccap += 16;
1419 frc = xrealloc(frc, frccap * sizeof(Fontcache));
1420 }
1421
1422 frc[frclen].font = XftFontOpenPattern(xw.dpy,
1423 fontpattern);
1424 if (!frc[frclen].font)
1425 die("XftFontOpenPattern failed seeking fallback font: %s\n",
1426 strerror(errno));
1427 frc[frclen].flags = frcflags;
1428 frc[frclen].unicodep = rune;
1429
1430 glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune);
1431
1432 f = frclen;
1433 frclen++;
1434
1435 FcPatternDestroy(fcpattern);
1436 FcCharSetDestroy(fccharset);
1437 }
1438
1439 specs[numspecs].font = frc[f].font;
1440 specs[numspecs].glyph = glyphidx;
1441 specs[numspecs].x = (short)xp;
1442 specs[numspecs].y = (short)yp;
1443 xp += runewidth;
1444 numspecs++;
1445 }
1446
1447 return numspecs;
1448 }
1449
1450 void
1451 xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode)
1452 {
1453 int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1);
1454 int winx = win.hborderpx + x * win.cw, winy = win.vborderpx + y * win.ch,
1455 width = charlen * win.cw;
1456 Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
1457 XRenderColor colfg, colbg;
1458 XRectangle r;
1459
1460 /* Fallback on color display for attributes not supported by the font */
1461 if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
1462 if (dc.ibfont.badslant || dc.ibfont.badweight)
1463 base.fg = defaultattr;
1464 } else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) ||
1465 (base.mode & ATTR_BOLD && dc.bfont.badweight)) {
1466 base.fg = defaultattr;
1467 }
1468
1469 if (IS_TRUECOL(base.fg)) {
1470 colfg.alpha = 0xffff;
1471 colfg.red = TRUERED(base.fg);
1472 colfg.green = TRUEGREEN(base.fg);
1473 colfg.blue = TRUEBLUE(base.fg);
1474 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
1475 fg = &truefg;
1476 } else {
1477 fg = &dc.col[base.fg];
1478 }
1479
1480 if (IS_TRUECOL(base.bg)) {
1481 colbg.alpha = 0xffff;
1482 colbg.green = TRUEGREEN(base.bg);
1483 colbg.red = TRUERED(base.bg);
1484 colbg.blue = TRUEBLUE(base.bg);
1485 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
1486 bg = &truebg;
1487 } else {
1488 bg = &dc.col[base.bg];
1489 }
1490
1491 /* Change basic system colors [0-7] to bright system colors [8-15] */
1492 if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7))
1493 fg = &dc.col[base.fg + 8];
1494
1495 if (IS_SET(MODE_REVERSE)) {
1496 if (fg == &dc.col[defaultfg]) {
1497 fg = &dc.col[defaultbg];
1498 } else {
1499 colfg.red = ~fg->color.red;
1500 colfg.green = ~fg->color.green;
1501 colfg.blue = ~fg->color.blue;
1502 colfg.alpha = fg->color.alpha;
1503 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg,
1504 &revfg);
1505 fg = &revfg;
1506 }
1507
1508 if (bg == &dc.col[defaultbg]) {
1509 bg = &dc.col[defaultfg];
1510 } else {
1511 colbg.red = ~bg->color.red;
1512 colbg.green = ~bg->color.green;
1513 colbg.blue = ~bg->color.blue;
1514 colbg.alpha = bg->color.alpha;
1515 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg,
1516 &revbg);
1517 bg = &revbg;
1518 }
1519 }
1520
1521 if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) {
1522 colfg.red = fg->color.red / 2;
1523 colfg.green = fg->color.green / 2;
1524 colfg.blue = fg->color.blue / 2;
1525 colfg.alpha = fg->color.alpha;
1526 XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
1527 fg = &revfg;
1528 }
1529
1530 if (base.mode & ATTR_REVERSE) {
1531 if (bg == fg) {
1532 bg = &dc.col[defaultfg];
1533 fg = &dc.col[defaultbg];
1534 } else {
1535 temp = fg;
1536 fg = bg;
1537 bg = temp;
1538 }
1539 }
1540
1541 if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK)
1542 fg = bg;
1543
1544 if (base.mode & ATTR_INVISIBLE)
1545 fg = bg;
1546
1547 if (invertcolors) {
1548 revfg = invertedcolor(fg);
1549 revbg = invertedcolor(bg);
1550 fg = &revfg;
1551 bg = &revbg;
1552 }
1553
1554 if (dmode & DRAW_BG) {
1555 /* Intelligent cleaning up of the borders. */
1556 if (x == 0) {
1557 xclear(0, (y == 0)? 0 : winy, win.vborderpx,
1558 winy + win.ch +
1559 ((winy + win.ch >= win.vborderpx + win.th)? win.h : 0));
1560 }
1561 if (winx + width >= win.hborderpx + win.tw) {
1562 xclear(winx + width, (y == 0)? 0 : winy, win.w,
1563 ((winy + win.ch >= win.vborderpx + win.th)? win.h : (winy + win.ch)));
1564 }
1565 if (y == 0)
1566 xclear(winx, 0, winx + width, win.vborderpx);
1567 if (winy + win.ch >= win.vborderpx + win.th)
1568 xclear(winx, winy + win.ch, winx + width, win.h);
1569 /* Fill the background */
1570 XftDrawRect(xw.draw, bg, winx, winy, width, win.ch);
1571 }
1572
1573 if (dmode & DRAW_FG) {
1574 /* Render the glyphs. */
1575 XftDrawGlyphFontSpec(xw.draw, fg, specs, len);
1576
1577 /* Render underline and strikethrough. */
1578 if (base.mode & ATTR_UNDERLINE) {
1579 XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
1580 width, 1);
1581 }
1582
1583 if (base.mode & ATTR_STRUCK) {
1584 XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
1585 width, 1);
1586 }
1587 }
1588 }
1589
1590 void
1591 xdrawglyph(Glyph g, int x, int y)
1592 {
1593 int numspecs;
1594 XftGlyphFontSpec spec;
1595
1596 numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y);
1597 xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG);
1598 }
1599
1600 void
1601 xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og)
1602 {
1603 Color drawcol;
1604
1605 /* remove the old cursor */
1606 if (selected(ox, oy))
1607 og.mode ^= ATTR_REVERSE;
1608 xdrawglyph(og, ox, oy);
1609
1610 if (IS_SET(MODE_HIDE))
1611 return;
1612
1613 /*
1614 * Select the right color for the right mode.
1615 */
1616 g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE;
1617
1618 if (IS_SET(MODE_REVERSE)) {
1619 g.mode |= ATTR_REVERSE;
1620 g.bg = defaultfg;
1621 if (selected(cx, cy)) {
1622 drawcol = dc.col[defaultcs];
1623 g.fg = defaultrcs;
1624 } else {
1625 drawcol = dc.col[defaultrcs];
1626 g.fg = defaultcs;
1627 }
1628 } else {
1629 if (selected(cx, cy)) {
1630 g.fg = defaultfg;
1631 g.bg = defaultrcs;
1632 } else {
1633 g.fg = defaultbg;
1634 g.bg = defaultcs;
1635 }
1636 drawcol = dc.col[g.bg];
1637 }
1638
1639 if (invertcolors)
1640 drawcol = invertedcolor(&drawcol);
1641
1642 /* draw the new one */
1643 if (IS_SET(MODE_FOCUSED)) {
1644 switch (win.cursor) {
1645 case 7: /* st extension */
1646 g.u = 0x2603; /* snowman (U+2603) */
1647 /* FALLTHROUGH */
1648 case 0: /* Blinking Block */
1649 case 1: /* Blinking Block (Default) */
1650 case 2: /* Steady Block */
1651 xdrawglyph(g, cx, cy);
1652 break;
1653 case 3: /* Blinking Underline */
1654 case 4: /* Steady Underline */
1655 XftDrawRect(xw.draw, &drawcol,
1656 win.hborderpx + cx * win.cw,
1657 win.vborderpx + (cy + 1) * win.ch - \
1658 cursorthickness,
1659 win.cw, cursorthickness);
1660 break;
1661 case 5: /* Blinking bar */
1662 case 6: /* Steady bar */
1663 XftDrawRect(xw.draw, &drawcol,
1664 win.hborderpx + cx * win.cw,
1665 win.vborderpx + cy * win.ch,
1666 cursorthickness, win.ch);
1667 break;
1668 }
1669 } else {
1670 XftDrawRect(xw.draw, &drawcol,
1671 win.hborderpx + cx * win.cw,
1672 win.vborderpx + cy * win.ch,
1673 win.cw - 1, 1);
1674 XftDrawRect(xw.draw, &drawcol,
1675 win.hborderpx + cx * win.cw,
1676 win.vborderpx + cy * win.ch,
1677 1, win.ch - 1);
1678 XftDrawRect(xw.draw, &drawcol,
1679 win.hborderpx + (cx + 1) * win.cw - 1,
1680 win.vborderpx + cy * win.ch,
1681 1, win.ch - 1);
1682 XftDrawRect(xw.draw, &drawcol,
1683 win.hborderpx + cx * win.cw,
1684 win.vborderpx + (cy + 1) * win.ch - 1,
1685 win.cw, 1);
1686 }
1687 }
1688
1689 void
1690 xsetenv(void)
1691 {
1692 char buf[sizeof(long) * 8 + 1];
1693
1694 snprintf(buf, sizeof(buf), "%lu", xw.win);
1695 setenv("WINDOWID", buf, 1);
1696 }
1697
1698 void
1699 xseticontitle(char *p)
1700 {
1701 XTextProperty prop;
1702 DEFAULT(p, opt_title);
1703
1704 if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
1705 &prop) != Success)
1706 return;
1707 XSetWMIconName(xw.dpy, xw.win, &prop);
1708 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmiconname);
1709 XFree(prop.value);
1710 }
1711
1712 void
1713 xsettitle(char *p)
1714 {
1715 XTextProperty prop;
1716 DEFAULT(p, opt_title);
1717
1718 if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
1719 &prop) != Success)
1720 return;
1721 XSetWMName(xw.dpy, xw.win, &prop);
1722 XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
1723 XFree(prop.value);
1724 }
1725
1726 int
1727 xstartdraw(void)
1728 {
1729 return IS_SET(MODE_VISIBLE);
1730 }
1731
1732 void
1733 xdrawline(Line line, int x1, int y1, int x2)
1734 {
1735 int i, x, ox, numspecs, numspecs_cached;
1736 Glyph base, new;
1737 XftGlyphFontSpec *specs;
1738
1739 numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1);
1740
1741 /* Draw line in 2 passes: background and foreground. This way wide glyphs
1742 won't get truncated (#223) */
1743 for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) {
1744 specs = xw.specbuf;
1745 numspecs = numspecs_cached;
1746 i = ox = 0;
1747 for (x = x1; x < x2 && i < numspecs; x++) {
1748 new = line[x];
1749 if (new.mode == ATTR_WDUMMY)
1750 continue;
1751 if (selected(x, y1))
1752 new.mode ^= ATTR_REVERSE;
1753 if (i > 0 && ATTRCMP(base, new)) {
1754 xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
1755 specs += i;
1756 numspecs -= i;
1757 i = 0;
1758 }
1759 if (i == 0) {
1760 ox = x;
1761 base = new;
1762 }
1763 i++;
1764 }
1765 if (i > 0)
1766 xdrawglyphfontspecs(specs, base, i, ox, y1, dmode);
1767 }
1768 }
1769
1770 void
1771 xfinishdraw(void)
1772 {
1773 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w,
1774 win.h, 0, 0);
1775 XSetForeground(xw.dpy, dc.gc,
1776 dc.col[IS_SET(MODE_REVERSE)?
1777 defaultfg : defaultbg].pixel);
1778 }
1779
1780 void
1781 xximspot(int x, int y)
1782 {
1783 if (xw.ime.xic == NULL)
1784 return;
1785
1786 xw.ime.spot.x = borderpx + x * win.cw;
1787 xw.ime.spot.y = borderpx + (y + 1) * win.ch;
1788
1789 XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL);
1790 }
1791
1792 void
1793 expose(XEvent *ev)
1794 {
1795 redraw();
1796 }
1797
1798 void
1799 visibility(XEvent *ev)
1800 {
1801 XVisibilityEvent *e = &ev->xvisibility;
1802
1803 MODBIT(win.mode, e->state != VisibilityFullyObscured, MODE_VISIBLE);
1804 }
1805
1806 void
1807 unmap(XEvent *ev)
1808 {
1809 win.mode &= ~MODE_VISIBLE;
1810 }
1811
1812 void
1813 xsetpointermotion(int set)
1814 {
1815 MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
1816 XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
1817 }
1818
1819 void
1820 xsetmode(int set, unsigned int flags)
1821 {
1822 int mode = win.mode;
1823 MODBIT(win.mode, set, flags);
1824 if ((win.mode & MODE_REVERSE) != (mode & MODE_REVERSE))
1825 redraw();
1826 }
1827
1828 int
1829 xsetcursor(int cursor)
1830 {
1831 if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */
1832 return 1;
1833 win.cursor = cursor;
1834 return 0;
1835 }
1836
1837 void
1838 xseturgency(int add)
1839 {
1840 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1841
1842 MODBIT(h->flags, add, XUrgencyHint);
1843 XSetWMHints(xw.dpy, xw.win, h);
1844 XFree(h);
1845 }
1846
1847 void
1848 xbell(void)
1849 {
1850 if (!(IS_SET(MODE_FOCUSED)))
1851 xseturgency(1);
1852 if (bellvolume)
1853 XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
1854 }
1855
1856 void
1857 focus(XEvent *ev)
1858 {
1859 XFocusChangeEvent *e = &ev->xfocus;
1860
1861 if (e->mode == NotifyGrab)
1862 return;
1863
1864 if (ev->type == FocusIn) {
1865 if (xw.ime.xic)
1866 XSetICFocus(xw.ime.xic);
1867 win.mode |= MODE_FOCUSED;
1868 xseturgency(0);
1869 if (IS_SET(MODE_FOCUS))
1870 ttywrite("\033[I", 3, 0);
1871 } else {
1872 if (xw.ime.xic)
1873 XUnsetICFocus(xw.ime.xic);
1874 win.mode &= ~MODE_FOCUSED;
1875 if (IS_SET(MODE_FOCUS))
1876 ttywrite("\033[O", 3, 0);
1877 }
1878 }
1879
1880 int
1881 match(uint mask, uint state)
1882 {
1883 return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
1884 }
1885
1886 char*
1887 kmap(KeySym k, uint state)
1888 {
1889 Key *kp;
1890 int i;
1891
1892 /* Check for mapped keys out of X11 function keys. */
1893 for (i = 0; i < LEN(mappedkeys); i++) {
1894 if (mappedkeys[i] == k)
1895 break;
1896 }
1897 if (i == LEN(mappedkeys)) {
1898 if ((k & 0xFFFF) < 0xFD00)
1899 return NULL;
1900 }
1901
1902 for (kp = key; kp < key + LEN(key); kp++) {
1903 if (kp->k != k)
1904 continue;
1905
1906 if (!match(kp->mask, state))
1907 continue;
1908
1909 if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
1910 continue;
1911 if (IS_SET(MODE_NUMLOCK) && kp->appkey == 2)
1912 continue;
1913
1914 if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
1915 continue;
1916
1917 return kp->s;
1918 }
1919
1920 return NULL;
1921 }
1922
1923 void
1924 kpress(XEvent *ev)
1925 {
1926 XKeyEvent *e = &ev->xkey;
1927 KeySym ksym;
1928 char buf[64], *customkey;
1929 int len;
1930 Rune c;
1931 Status status;
1932 Shortcut *bp;
1933
1934 if (IS_SET(MODE_KBDLOCK))
1935 return;
1936
1937 if (xw.ime.xic)
1938 len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
1939 else
1940 len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
1941 /* 1. shortcuts */
1942 for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
1943 if (ksym == bp->keysym && match(bp->mod, e->state)) {
1944 bp->func(&(bp->arg));
1945 return;
1946 }
1947 }
1948
1949 /* 2. custom keys from config.h */
1950 if ((customkey = kmap(ksym, e->state))) {
1951 ttywrite(customkey, strlen(customkey), 1);
1952 return;
1953 }
1954
1955 /* 3. composed string from input method */
1956 if (len == 0)
1957 return;
1958 if (len == 1 && e->state & Mod1Mask) {
1959 if (IS_SET(MODE_8BIT)) {
1960 if (*buf < 0177) {
1961 c = *buf | 0x80;
1962 len = utf8encode(c, buf);
1963 }
1964 } else {
1965 buf[1] = buf[0];
1966 buf[0] = '\033';
1967 len = 2;
1968 }
1969 }
1970 ttywrite(buf, len, 1);
1971 }
1972
1973 void
1974 cmessage(XEvent *e)
1975 {
1976 /*
1977 * See xembed specs
1978 * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
1979 */
1980 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
1981 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
1982 win.mode |= MODE_FOCUSED;
1983 xseturgency(0);
1984 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
1985 win.mode &= ~MODE_FOCUSED;
1986 }
1987 } else if (e->xclient.data.l[0] == xw.wmdeletewin) {
1988 ttyhangup();
1989 exit(0);
1990 }
1991 }
1992
1993 void
1994 resize(XEvent *e)
1995 {
1996 if (e->xconfigure.width == win.w && e->xconfigure.height == win.h)
1997 return;
1998
1999 cresize(e->xconfigure.width, e->xconfigure.height);
2000 }
2001
2002 void
2003 run(void)
2004 {
2005 XEvent ev;
2006 int w = win.w, h = win.h;
2007 fd_set rfd;
2008 int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing;
2009 struct timespec seltv, *tv, now, lastblink, trigger;
2010 double timeout;
2011
2012 /* Waiting for window mapping */
2013 do {
2014 XNextEvent(xw.dpy, &ev);
2015 /*
2016 * This XFilterEvent call is required because of XOpenIM. It
2017 * does filter out the key event and some client message for
2018 * the input method too.
2019 */
2020 if (XFilterEvent(&ev, None))
2021 continue;
2022 if (ev.type == ConfigureNotify) {
2023 w = ev.xconfigure.width;
2024 h = ev.xconfigure.height;
2025 }
2026 } while (ev.type != MapNotify);
2027
2028 ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd);
2029 cresize(w, h);
2030
2031 for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) {
2032 FD_ZERO(&rfd);
2033 FD_SET(ttyfd, &rfd);
2034 FD_SET(xfd, &rfd);
2035
2036 if (XPending(xw.dpy))
2037 timeout = 0; /* existing events might not set xfd */
2038
2039 seltv.tv_sec = timeout / 1E3;
2040 seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec);
2041 tv = timeout >= 0 ? &seltv : NULL;
2042
2043 if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
2044 if (errno == EINTR)
2045 continue;
2046 die("select failed: %s\n", strerror(errno));
2047 }
2048 clock_gettime(CLOCK_MONOTONIC, &now);
2049
2050 if (FD_ISSET(ttyfd, &rfd))
2051 ttyread();
2052
2053 xev = 0;
2054 while (XPending(xw.dpy)) {
2055 xev = 1;
2056 XNextEvent(xw.dpy, &ev);
2057 if (XFilterEvent(&ev, None))
2058 continue;
2059 if (handler[ev.type])
2060 (handler[ev.type])(&ev);
2061 }
2062
2063 /*
2064 * To reduce flicker and tearing, when new content or event
2065 * triggers drawing, we first wait a bit to ensure we got
2066 * everything, and if nothing new arrives - we draw.
2067 * We start with trying to wait minlatency ms. If more content
2068 * arrives sooner, we retry with shorter and shorter periods,
2069 * and eventually draw even without idle after maxlatency ms.
2070 * Typically this results in low latency while interacting,
2071 * maximum latency intervals during `cat huge.txt`, and perfect
2072 * sync with periodic updates from animations/key-repeats/etc.
2073 */
2074 if (FD_ISSET(ttyfd, &rfd) || xev) {
2075 if (!drawing) {
2076 trigger = now;
2077 drawing = 1;
2078 }
2079 timeout = (maxlatency - TIMEDIFF(now, trigger)) \
2080 / maxlatency * minlatency;
2081 if (timeout > 0)
2082 continue; /* we have time, try to find idle */
2083 }
2084
2085 /* idle detected or maxlatency exhausted -> draw */
2086 timeout = -1;
2087 if (blinktimeout && tattrset(ATTR_BLINK)) {
2088 timeout = blinktimeout - TIMEDIFF(now, lastblink);
2089 if (timeout <= 0) {
2090 if (-timeout > blinktimeout) /* start visible */
2091 win.mode |= MODE_BLINK;
2092 win.mode ^= MODE_BLINK;
2093 tsetdirtattr(ATTR_BLINK);
2094 lastblink = now;
2095 timeout = blinktimeout;
2096 }
2097 }
2098
2099 draw();
2100 XFlush(xw.dpy);
2101 drawing = 0;
2102 }
2103 }
2104
2105 void
2106 usage(void)
2107 {
2108 die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]"
2109 " [-n name] [-o file]\n"
2110 " [-T title] [-t title] [-w windowid]"
2111 " [[-e] command [args ...]]\n"
2112 " %s [-aiv] [-c class] [-f font] [-g geometry]"
2113 " [-n name] [-o file]\n"
2114 " [-T title] [-t title] [-w windowid] -l line"
2115 " [stty_args ...]\n", argv0, argv0);
2116 }
2117
2118 int
2119 main(int argc, char *argv[])
2120 {
2121 xw.l = xw.t = 0;
2122 xw.isfixed = False;
2123 xsetcursor(cursorshape);
2124
2125 ARGBEGIN {
2126 case 'a':
2127 allowaltscreen = 0;
2128 break;
2129 case 'A':
2130 opt_alpha = EARGF(usage());
2131 break;
2132 case 'c':
2133 opt_class = EARGF(usage());
2134 break;
2135 case 'e':
2136 if (argc > 0)
2137 --argc, ++argv;
2138 goto run;
2139 case 'f':
2140 opt_font = EARGF(usage());
2141 break;
2142 case 'g':
2143 xw.gm = XParseGeometry(EARGF(usage()),
2144 &xw.l, &xw.t, &cols, &rows);
2145 break;
2146 case 'i':
2147 xw.isfixed = 1;
2148 break;
2149 case 'o':
2150 opt_io = EARGF(usage());
2151 break;
2152 case 'l':
2153 opt_line = EARGF(usage());
2154 break;
2155 case 'n':
2156 opt_name = EARGF(usage());
2157 break;
2158 case 't':
2159 case 'T':
2160 opt_title = EARGF(usage());
2161 break;
2162 case 'w':
2163 opt_embed = EARGF(usage());
2164 break;
2165 case 'v':
2166 die("%s " VERSION "\n", argv0);
2167 break;
2168 default:
2169 usage();
2170 } ARGEND;
2171
2172 run:
2173 if (argc > 0) /* eat all remaining arguments */
2174 opt_cmd = argv;
2175
2176 if (!opt_title)
2177 opt_title = (opt_line || !opt_cmd) ? "st" : opt_cmd[0];
2178
2179 setlocale(LC_CTYPE, "");
2180 XSetLocaleModifiers("");
2181 cols = MAX(cols, 1);
2182 rows = MAX(rows, 1);
2183 tnew(cols, rows);
2184 xinit(cols, rows);
2185 xsetenv();
2186 selinit();
2187 run();
2188
2189 return 0;
2190 }