1 /* See LICENSE for licence details. */
2 #define _XOPEN_SOURCE 600
14 #include <sys/ioctl.h>
15 #include <sys/select.h>
18 #include <sys/types.h>
22 #include <X11/Xatom.h>
24 #include <X11/Xutil.h>
25 #include <X11/cursorfont.h>
26 #include <X11/keysym.h>
27 #include <X11/extensions/Xdbe.h>
31 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
33 #elif defined(__FreeBSD__) || defined(__DragonFly__)
38 "st " VERSION " (c) 2010-2012 st engineers\n" \
39 "usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
42 #define XEMBED_FOCUS_IN 4
43 #define XEMBED_FOCUS_OUT 5
46 #define ESC_TITLE_SIZ 256
47 #define ESC_BUF_SIZ 256
48 #define ESC_ARG_SIZ 16
49 #define DRAW_BUF_SIZ 1024
51 #define XK_NO_MOD UINT_MAX
54 #define SELECT_TIMEOUT (20*1000) /* 20 ms */
55 #define DRAW_TIMEOUT (20*1000) /* 20 ms */
57 #define SERRNO strerror(errno)
58 #define MIN(a, b) ((a) < (b) ? (a) : (b))
59 #define MAX(a, b) ((a) < (b) ? (b) : (a))
60 #define LEN(a) (sizeof(a) / sizeof(a[0]))
61 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
62 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
63 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
64 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
65 #define IS_SET(flag) (term.mode & (flag))
66 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
67 #define X2COL(x) (((x) - BORDER)/xw.cw)
68 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
70 enum glyph_attribute {
78 enum cursor_movement {
105 MODE_MOUSEMOTION = 64,
126 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
128 typedef unsigned char uchar;
129 typedef unsigned int uint;
130 typedef unsigned long ulong;
131 typedef unsigned short ushort;
134 char c[UTF_SIZ]; /* character code */
135 uchar mode; /* attribute flags */
136 ushort fg; /* foreground */
137 ushort bg; /* background */
138 uchar state; /* state flags */
144 Glyph attr; /* current char attributes */
150 /* CSI Escape sequence structs */
151 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
153 char buf[ESC_BUF_SIZ]; /* raw string */
154 int len; /* raw string length */
156 int arg[ESC_ARG_SIZ];
157 int narg; /* nb of args */
161 /* Internal representation of the screen */
163 int row; /* nb row */
164 int col; /* nb col */
165 Line* line; /* screen */
166 Line* alt; /* alternate screen */
167 bool* dirty; /* dirtyness of lines */
168 TCursor c; /* cursor */
169 int top; /* top scroll limit */
170 int bot; /* bottom scroll limit */
171 int mode; /* terminal mode flags */
172 int esc; /* escape state flags */
173 char title[ESC_TITLE_SIZ];
177 /* Purely graphic info */
187 int w; /* window width */
188 int h; /* window height */
189 int ch; /* char height */
190 int cw; /* char width */
191 char state; /* focus, redraw, visible */
192 struct timeval lastdraw;
202 /* TODO: use better name for vars... */
207 struct {int x, y;} b, e;
210 struct timeval tclick1;
211 struct timeval tclick2;
216 /* Drawing Context */
218 ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
229 static void die(const char*, ...);
230 static void draw(void);
231 static void drawregion(int, int, int, int);
232 static void execsh(void);
233 static void sigchld(int);
234 static void run(void);
235 static bool last_draw_too_old(void);
237 static void csidump(void);
238 static void csihandle(void);
239 static void csiparse(void);
240 static void csireset(void);
242 static void tclearregion(int, int, int, int);
243 static void tcursor(int);
244 static void tdeletechar(int);
245 static void tdeleteline(int);
246 static void tinsertblank(int);
247 static void tinsertblankline(int);
248 static void tmoveto(int, int);
249 static void tnew(int, int);
250 static void tnewline(int);
251 static void tputtab(void);
252 static void tputc(char*);
253 static void treset(void);
254 static int tresize(int, int);
255 static void tscrollup(int, int);
256 static void tscrolldown(int, int);
257 static void tsetattr(int*, int);
258 static void tsetchar(char*);
259 static void tsetscroll(int, int);
260 static void tswapscreen(void);
261 static void tsetdirt(int, int);
262 static void tfulldirt(void);
264 static void ttynew(void);
265 static void ttyread(void);
266 static void ttyresize(int, int);
267 static void ttywrite(const char *, size_t);
269 static void xdraws(char *, Glyph, int, int, int, int);
270 static void xhints(void);
271 static void xclear(int, int, int, int);
273 static void xdrawcursor(void);
274 static void xinit(void);
275 static void xloadcols(void);
276 static void xseturgency(int);
277 static void xsetsel(char*);
278 static void xresize(int, int);
280 static void expose(XEvent *);
281 static void visibility(XEvent *);
282 static void unmap(XEvent *);
283 static char* kmap(KeySym, uint);
284 static void kpress(XEvent *);
285 static void cmessage(XEvent *);
286 static void resize(XEvent *);
287 static void focus(XEvent *);
288 static void brelease(XEvent *);
289 static void bpress(XEvent *);
290 static void bmotion(XEvent *);
291 static void selnotify(XEvent *);
292 static void selrequest(XEvent *);
294 static void selinit(void);
295 static inline bool selected(int, int);
296 static void selcopy(void);
297 static void selpaste();
298 static void selscroll(int, int);
300 static int utf8decode(char *, long *);
301 static int utf8encode(long *, char *);
302 static int utf8size(char *);
303 static int isfullutf8(char *, int);
305 static void (*handler[LASTEvent])(XEvent *) = {
307 [ClientMessage] = cmessage,
308 [ConfigureNotify] = resize,
309 [VisibilityNotify] = visibility,
310 [UnmapNotify] = unmap,
314 [MotionNotify] = bmotion,
315 [ButtonPress] = bpress,
316 [ButtonRelease] = brelease,
317 [SelectionNotify] = selnotify,
318 [SelectionRequest] = selrequest,
325 static CSIEscape escseq;
328 static Selection sel;
329 static char **opt_cmd = NULL;
330 static char *opt_title = NULL;
331 static char *opt_embed = NULL;
332 static char *opt_class = NULL;
335 utf8decode(char *s, long *u) {
341 if(~c & B7) { /* 0xxxxxxx */
344 } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
345 *u = c&(B4|B3|B2|B1|B0);
347 } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
348 *u = c&(B3|B2|B1|B0);
350 } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
355 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
357 if((c & (B7|B6)) != B7) /* 10xxxxxx */
360 *u |= c & (B5|B4|B3|B2|B1|B0);
362 if((n == 1 && *u < 0x80) ||
363 (n == 2 && *u < 0x800) ||
364 (n == 3 && *u < 0x10000) ||
365 (*u >= 0xD800 && *u <= 0xDFFF))
374 utf8encode(long *u, char *s) {
382 *sp = uc; /* 0xxxxxxx */
384 } else if(*u < 0x800) {
385 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
387 } else if(uc < 0x10000) {
388 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
390 } else if(uc <= 0x10FFFF) {
391 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
396 for(i=n,++sp; i>0; --i,++sp)
397 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
407 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
408 UTF-8 otherwise return 0 */
410 isfullutf8(char *s, int b) {
418 else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
420 else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
422 ((b == 2) && (*c2&(B7|B6)) == B7)))
424 else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
426 ((b == 2) && (*c2&(B7|B6)) == B7) ||
427 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
439 else if((c&(B7|B6|B5)) == (B7|B6))
441 else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
449 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
450 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
454 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
455 if(sel.xtarget == None)
456 sel.xtarget = XA_STRING;
460 selected(int x, int y) {
461 if(sel.ey == y && sel.by == y) {
462 int bx = MIN(sel.bx, sel.ex);
463 int ex = MAX(sel.bx, sel.ex);
464 return BETWEEN(x, bx, ex);
466 return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
467 || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
471 getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
473 *b = e->xbutton.button;
475 *x = X2COL(e->xbutton.x);
476 *y = Y2ROW(e->xbutton.y);
477 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
478 sel.b.y = MIN(sel.by, sel.ey);
479 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
480 sel.e.y = MAX(sel.by, sel.ey);
484 mousereport(XEvent *e) {
485 int x = X2COL(e->xbutton.x);
486 int y = Y2ROW(e->xbutton.y);
487 int button = e->xbutton.button;
488 int state = e->xbutton.state;
489 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
490 static int ob, ox, oy;
493 if(e->xbutton.type == MotionNotify) {
494 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
498 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
504 if(e->xbutton.type == ButtonPress) {
510 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
511 + (state & Mod4Mask ? 8 : 0)
512 + (state & ControlMask ? 16 : 0);
514 ttywrite(buf, sizeof(buf));
519 if(IS_SET(MODE_MOUSE))
521 else if(e->xbutton.button == Button1) {
523 tsetdirt(sel.b.y, sel.e.y);
525 sel.ex = sel.bx = X2COL(e->xbutton.x);
526 sel.ey = sel.by = Y2ROW(e->xbutton.y);
533 int x, y, bufsize, is_selected = 0;
539 bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
540 ptr = str = malloc(bufsize);
542 /* append every set & selected glyph to the selection */
543 for(y = 0; y < term.row; y++) {
544 for(x = 0; x < term.col; x++) {
545 is_selected = selected(x, y);
546 if((term.line[y][x].state & GLYPH_SET) && is_selected) {
547 int size = utf8size(term.line[y][x].c);
548 memcpy(ptr, term.line[y][x].c, size);
553 /* \n at the end of every selected line except for the last one */
554 if(is_selected && y < sel.e.y)
563 selnotify(XEvent *e) {
564 ulong nitems, ofs, rem;
571 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
572 False, AnyPropertyType, &type, &format,
573 &nitems, &rem, &data)) {
574 fprintf(stderr, "Clipboard allocation failed\n");
577 ttywrite((const char *) data, nitems * format / 8);
579 /* number of 32-bit chunks returned */
580 ofs += nitems * format / 32;
586 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
590 selrequest(XEvent *e) {
591 XSelectionRequestEvent *xsre;
595 xsre = (XSelectionRequestEvent *) e;
596 xev.type = SelectionNotify;
597 xev.requestor = xsre->requestor;
598 xev.selection = xsre->selection;
599 xev.target = xsre->target;
600 xev.time = xsre->time;
604 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
605 if(xsre->target == xa_targets) {
606 /* respond with the supported type */
607 Atom string = sel.xtarget;
608 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
609 XA_ATOM, 32, PropModeReplace,
610 (uchar *) &string, 1);
611 xev.property = xsre->property;
612 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
613 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
614 xsre->target, 8, PropModeReplace,
615 (uchar *) sel.clip, strlen(sel.clip));
616 xev.property = xsre->property;
619 /* all done, send a notification to the listener */
620 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
621 fprintf(stderr, "Error sending SelectionNotify event\n");
626 /* register the selection for both the clipboard and the primary */
632 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
634 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
635 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
641 brelease(XEvent *e) {
642 if(IS_SET(MODE_MOUSE)) {
646 if(e->xbutton.button == Button2)
648 else if(e->xbutton.button == Button1) {
650 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
651 term.dirty[sel.ey] = 1;
652 if(sel.bx == sel.ex && sel.by == sel.ey) {
655 gettimeofday(&now, NULL);
657 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
658 /* triple click on the line */
659 sel.b.x = sel.bx = 0;
660 sel.e.x = sel.ex = term.col;
661 sel.b.y = sel.e.y = sel.ey;
663 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
664 /* double click to select word */
666 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
667 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
669 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
670 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
672 sel.b.y = sel.e.y = sel.ey;
678 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
679 gettimeofday(&sel.tclick1, NULL);
685 if(IS_SET(MODE_MOUSE)) {
690 int oldey = sel.ey, oldex = sel.ex;
691 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
693 if(oldey != sel.ey || oldex != sel.ex) {
694 int starty = MIN(oldey, sel.ey);
695 int endy = MAX(oldey, sel.ey);
696 tsetdirt(starty, endy);
703 die(const char *errstr, ...) {
706 va_start(ap, errstr);
707 vfprintf(stderr, errstr, ap);
715 char *envshell = getenv("SHELL");
717 DEFAULT(envshell, SHELL);
718 putenv("TERM="TNAME);
719 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
720 execvp(args[0], args);
727 if(waitpid(pid, &stat, 0) < 0)
728 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
730 exit(WEXITSTATUS(stat));
739 /* seems to work fine on linux, openbsd and freebsd */
740 struct winsize w = {term.row, term.col, 0, 0};
741 if(openpty(&m, &s, NULL, NULL, &w) < 0)
742 die("openpty failed: %s\n", SERRNO);
744 switch(pid = fork()) {
746 die("fork failed\n");
749 setsid(); /* create a new process group */
750 dup2(s, STDIN_FILENO);
751 dup2(s, STDOUT_FILENO);
752 dup2(s, STDERR_FILENO);
753 if(ioctl(s, TIOCSCTTY, NULL) < 0)
754 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
762 signal(SIGCHLD, sigchld);
769 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
771 fprintf(stderr, "\n");
776 static char buf[BUFSIZ];
777 static int buflen = 0;
780 int charsize; /* size of utf8 char in bytes */
784 /* append read bytes to unprocessed bytes */
785 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
786 die("Couldn't read from shell: %s\n", SERRNO);
788 /* process every complete utf8 char */
791 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
792 charsize = utf8decode(ptr, &utf8c);
793 utf8encode(&utf8c, s);
799 /* keep any uncomplete utf8 char for the next call */
800 memmove(buf, ptr, buflen);
804 ttywrite(const char *s, size_t n) {
805 if(write(cmdfd, s, n) == -1)
806 die("write error on tty: %s\n", SERRNO);
810 ttyresize(int x, int y) {
815 w.ws_xpixel = w.ws_ypixel = 0;
816 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
817 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
821 tsetdirt(int top, int bot)
825 LIMIT(top, 0, term.row-1);
826 LIMIT(bot, 0, term.row-1);
828 for(i = top; i <= bot; i++)
835 tsetdirt(0, term.row-1);
842 if(mode == CURSOR_SAVE)
844 else if(mode == CURSOR_LOAD)
845 term.c = c, tmoveto(c.x, c.y);
854 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
856 term.top = 0, term.bot = term.row - 1;
857 term.mode = MODE_WRAP;
858 tclearregion(0, 0, term.col-1, term.row-1);
862 tnew(int col, int row) {
863 /* set screen size */
864 term.row = row, term.col = col;
865 term.line = malloc(term.row * sizeof(Line));
866 term.alt = malloc(term.row * sizeof(Line));
867 term.dirty = malloc(term.row * sizeof(*term.dirty));
869 for(row = 0; row < term.row; row++) {
870 term.line[row] = malloc(term.col * sizeof(Glyph));
871 term.alt [row] = malloc(term.col * sizeof(Glyph));
880 Line* tmp = term.line;
881 term.line = term.alt;
883 term.mode ^= MODE_ALTSCREEN;
888 tscrolldown(int orig, int n) {
892 LIMIT(n, 0, term.bot-orig+1);
894 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
896 for(i = term.bot; i >= orig+n; i--) {
898 term.line[i] = term.line[i-n];
899 term.line[i-n] = temp;
909 tscrollup(int orig, int n) {
912 LIMIT(n, 0, term.bot-orig+1);
914 tclearregion(0, orig, term.col-1, orig+n-1);
916 for(i = orig; i <= term.bot-n; i++) {
918 term.line[i] = term.line[i+n];
919 term.line[i+n] = temp;
929 selscroll(int orig, int n) {
933 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
934 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
938 if(sel.by < term.top) {
942 if(sel.ey > term.bot) {
946 sel.b.y = sel.by, sel.b.x = sel.bx;
947 sel.e.y = sel.ey, sel.e.x = sel.ex;
952 tnewline(int first_col) {
955 tscrollup(term.top, 1);
958 tmoveto(first_col ? 0 : term.c.x, y);
964 char *p = escseq.buf;
968 escseq.priv = 1, p++;
970 while(p < escseq.buf+escseq.len) {
972 escseq.arg[escseq.narg] *= 10;
973 escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
975 if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
986 tmoveto(int x, int y) {
987 LIMIT(x, 0, term.col-1);
988 LIMIT(y, 0, term.row-1);
989 term.c.state &= ~CURSOR_WRAPNEXT;
996 term.dirty[term.c.y] = 1;
997 term.line[term.c.y][term.c.x] = term.c.attr;
998 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
999 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
1003 tclearregion(int x1, int y1, int x2, int y2) {
1007 temp = x1, x1 = x2, x2 = temp;
1009 temp = y1, y1 = y2, y2 = temp;
1011 LIMIT(x1, 0, term.col-1);
1012 LIMIT(x2, 0, term.col-1);
1013 LIMIT(y1, 0, term.row-1);
1014 LIMIT(y2, 0, term.row-1);
1016 for(y = y1; y <= y2; y++) {
1018 for(x = x1; x <= x2; x++)
1019 term.line[y][x].state = 0;
1024 tdeletechar(int n) {
1025 int src = term.c.x + n;
1027 int size = term.col - src;
1029 term.dirty[term.c.y] = 1;
1031 if(src >= term.col) {
1032 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1035 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
1036 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1040 tinsertblank(int n) {
1043 int size = term.col - dst;
1045 term.dirty[term.c.y] = 1;
1047 if(dst >= term.col) {
1048 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1051 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
1052 tclearregion(src, term.c.y, dst - 1, term.c.y);
1056 tinsertblankline(int n) {
1057 if(term.c.y < term.top || term.c.y > term.bot)
1060 tscrolldown(term.c.y, n);
1064 tdeleteline(int n) {
1065 if(term.c.y < term.top || term.c.y > term.bot)
1068 tscrollup(term.c.y, n);
1072 tsetattr(int *attr, int l) {
1075 for(i = 0; i < l; i++) {
1078 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
1079 term.c.attr.fg = DefaultFG;
1080 term.c.attr.bg = DefaultBG;
1083 term.c.attr.mode |= ATTR_BOLD;
1086 term.c.attr.mode |= ATTR_UNDERLINE;
1089 term.c.attr.mode |= ATTR_REVERSE;
1092 term.c.attr.mode &= ~ATTR_BOLD;
1095 term.c.attr.mode &= ~ATTR_UNDERLINE;
1098 term.c.attr.mode &= ~ATTR_REVERSE;
1101 if(i + 2 < l && attr[i + 1] == 5) {
1103 if(BETWEEN(attr[i], 0, 255))
1104 term.c.attr.fg = attr[i];
1106 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
1109 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1112 term.c.attr.fg = DefaultFG;
1115 if(i + 2 < l && attr[i + 1] == 5) {
1117 if(BETWEEN(attr[i], 0, 255))
1118 term.c.attr.bg = attr[i];
1120 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
1123 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1126 term.c.attr.bg = DefaultBG;
1129 if(BETWEEN(attr[i], 30, 37))
1130 term.c.attr.fg = attr[i] - 30;
1131 else if(BETWEEN(attr[i], 40, 47))
1132 term.c.attr.bg = attr[i] - 40;
1133 else if(BETWEEN(attr[i], 90, 97))
1134 term.c.attr.fg = attr[i] - 90 + 8;
1135 else if(BETWEEN(attr[i], 100, 107))
1136 term.c.attr.fg = attr[i] - 100 + 8;
1138 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
1146 tsetscroll(int t, int b) {
1149 LIMIT(t, 0, term.row-1);
1150 LIMIT(b, 0, term.row-1);
1162 switch(escseq.mode) {
1165 fprintf(stderr, "erresc: unknown csi ");
1169 case '@': /* ICH -- Insert <n> blank char */
1170 DEFAULT(escseq.arg[0], 1);
1171 tinsertblank(escseq.arg[0]);
1173 case 'A': /* CUU -- Cursor <n> Up */
1175 DEFAULT(escseq.arg[0], 1);
1176 tmoveto(term.c.x, term.c.y-escseq.arg[0]);
1178 case 'B': /* CUD -- Cursor <n> Down */
1179 DEFAULT(escseq.arg[0], 1);
1180 tmoveto(term.c.x, term.c.y+escseq.arg[0]);
1182 case 'C': /* CUF -- Cursor <n> Forward */
1184 DEFAULT(escseq.arg[0], 1);
1185 tmoveto(term.c.x+escseq.arg[0], term.c.y);
1187 case 'D': /* CUB -- Cursor <n> Backward */
1188 DEFAULT(escseq.arg[0], 1);
1189 tmoveto(term.c.x-escseq.arg[0], term.c.y);
1191 case 'E': /* CNL -- Cursor <n> Down and first col */
1192 DEFAULT(escseq.arg[0], 1);
1193 tmoveto(0, term.c.y+escseq.arg[0]);
1195 case 'F': /* CPL -- Cursor <n> Up and first col */
1196 DEFAULT(escseq.arg[0], 1);
1197 tmoveto(0, term.c.y-escseq.arg[0]);
1199 case 'G': /* CHA -- Move to <col> */
1200 case '`': /* XXX: HPA -- same? */
1201 DEFAULT(escseq.arg[0], 1);
1202 tmoveto(escseq.arg[0]-1, term.c.y);
1204 case 'H': /* CUP -- Move to <row> <col> */
1205 case 'f': /* XXX: HVP -- same? */
1206 DEFAULT(escseq.arg[0], 1);
1207 DEFAULT(escseq.arg[1], 1);
1208 tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
1210 /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
1211 case 'J': /* ED -- Clear screen */
1213 switch(escseq.arg[0]) {
1215 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1216 if(term.c.y < term.row-1)
1217 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1221 tclearregion(0, 0, term.col-1, term.c.y-1);
1222 tclearregion(0, term.c.y, term.c.x, term.c.y);
1225 tclearregion(0, 0, term.col-1, term.row-1);
1231 case 'K': /* EL -- Clear line */
1232 switch(escseq.arg[0]) {
1234 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1237 tclearregion(0, term.c.y, term.c.x, term.c.y);
1240 tclearregion(0, term.c.y, term.col-1, term.c.y);
1244 case 'S': /* SU -- Scroll <n> line up */
1245 DEFAULT(escseq.arg[0], 1);
1246 tscrollup(term.top, escseq.arg[0]);
1248 case 'T': /* SD -- Scroll <n> line down */
1249 DEFAULT(escseq.arg[0], 1);
1250 tscrolldown(term.top, escseq.arg[0]);
1252 case 'L': /* IL -- Insert <n> blank lines */
1253 DEFAULT(escseq.arg[0], 1);
1254 tinsertblankline(escseq.arg[0]);
1256 case 'l': /* RM -- Reset Mode */
1258 switch(escseq.arg[0]) {
1260 term.mode &= ~MODE_APPKEYPAD;
1262 case 5: /* DECSCNM -- Remove reverse video */
1263 if(IS_SET(MODE_REVERSE)) {
1264 term.mode &= ~MODE_REVERSE;
1269 term.mode &= ~MODE_WRAP;
1271 case 12: /* att610 -- Stop blinking cursor (IGNORED) */
1274 term.mode &= ~MODE_CRLF;
1277 term.c.state |= CURSOR_HIDE;
1279 case 1000: /* disable X11 xterm mouse reporting */
1280 term.mode &= ~MODE_MOUSEBTN;
1283 term.mode &= ~MODE_MOUSEMOTION;
1285 case 1049: /* = 1047 and 1048 */
1288 if(IS_SET(MODE_ALTSCREEN)) {
1289 tclearregion(0, 0, term.col-1, term.row-1);
1292 if(escseq.arg[0] != 1049)
1295 tcursor(CURSOR_LOAD);
1301 switch(escseq.arg[0]) {
1303 term.mode &= ~MODE_INSERT;
1310 case 'M': /* DL -- Delete <n> lines */
1311 DEFAULT(escseq.arg[0], 1);
1312 tdeleteline(escseq.arg[0]);
1314 case 'X': /* ECH -- Erase <n> char */
1315 DEFAULT(escseq.arg[0], 1);
1316 tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
1318 case 'P': /* DCH -- Delete <n> char */
1319 DEFAULT(escseq.arg[0], 1);
1320 tdeletechar(escseq.arg[0]);
1322 /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
1323 case 'd': /* VPA -- Move to <row> */
1324 DEFAULT(escseq.arg[0], 1);
1325 tmoveto(term.c.x, escseq.arg[0]-1);
1327 case 'h': /* SM -- Set terminal mode */
1329 switch(escseq.arg[0]) {
1331 term.mode |= MODE_APPKEYPAD;
1333 case 5: /* DECSCNM -- Reverve video */
1334 if(!IS_SET(MODE_REVERSE)) {
1335 term.mode |= MODE_REVERSE;
1340 term.mode |= MODE_WRAP;
1343 term.mode |= MODE_CRLF;
1345 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1346 /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
1347 if(escseq.narg > 1 && escseq.arg[1] != 25)
1350 term.c.state &= ~CURSOR_HIDE;
1352 case 1000: /* 1000,1002: enable xterm mouse report */
1353 term.mode |= MODE_MOUSEBTN;
1356 term.mode |= MODE_MOUSEMOTION;
1358 case 1049: /* = 1047 and 1048 */
1361 if(IS_SET(MODE_ALTSCREEN))
1362 tclearregion(0, 0, term.col-1, term.row-1);
1365 if(escseq.arg[0] != 1049)
1368 tcursor(CURSOR_SAVE);
1370 default: goto unknown;
1373 switch(escseq.arg[0]) {
1375 term.mode |= MODE_INSERT;
1377 default: goto unknown;
1381 case 'm': /* SGR -- Terminal attribute (color) */
1382 tsetattr(escseq.arg, escseq.narg);
1384 case 'r': /* DECSTBM -- Set Scrolling Region */
1388 DEFAULT(escseq.arg[0], 1);
1389 DEFAULT(escseq.arg[1], term.row);
1390 tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
1394 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1395 tcursor(CURSOR_SAVE);
1397 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1398 tcursor(CURSOR_LOAD);
1407 for(i = 0; i < escseq.len; i++) {
1408 uint c = escseq.buf[i] & 0xff;
1409 if(isprint(c)) putchar(c);
1410 else if(c == '\n') printf("(\\n)");
1411 else if(c == '\r') printf("(\\r)");
1412 else if(c == 0x1b) printf("(\\e)");
1413 else printf("(%02x)", c);
1420 memset(&escseq, 0, sizeof(escseq));
1425 int space = TAB - term.c.x % TAB;
1426 tmoveto(term.c.x + space, term.c.y);
1432 if(term.esc & ESC_START) {
1433 if(term.esc & ESC_CSI) {
1434 escseq.buf[escseq.len++] = ascii;
1435 if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
1437 csiparse(), csihandle();
1439 /* TODO: handle other OSC */
1440 } else if(term.esc & ESC_OSC) {
1443 term.esc = ESC_START | ESC_TITLE;
1445 } else if(term.esc & ESC_TITLE) {
1446 if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
1448 term.title[term.titlelen] = '\0';
1449 XStoreName(xw.dpy, xw.win, term.title);
1451 term.title[term.titlelen++] = ascii;
1453 } else if(term.esc & ESC_ALTCHARSET) {
1455 case '0': /* Line drawing crap */
1456 term.c.attr.mode |= ATTR_GFX;
1458 case 'B': /* Back to regular text */
1459 term.c.attr.mode &= ~ATTR_GFX;
1462 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1468 term.esc |= ESC_CSI;
1471 term.esc |= ESC_OSC;
1474 term.esc |= ESC_ALTCHARSET;
1476 case 'D': /* IND -- Linefeed */
1477 if(term.c.y == term.bot)
1478 tscrollup(term.top, 1);
1480 tmoveto(term.c.x, term.c.y+1);
1483 case 'E': /* NEL -- Next line */
1484 tnewline(1); /* always go to first col */
1487 case 'M': /* RI -- Reverse index */
1488 if(term.c.y == term.top)
1489 tscrolldown(term.top, 1);
1491 tmoveto(term.c.x, term.c.y-1);
1494 case 'c': /* RIS -- Reset to inital state */
1498 case '=': /* DECPAM -- Application keypad */
1499 term.mode |= MODE_APPKEYPAD;
1502 case '>': /* DECPNM -- Normal keypad */
1503 term.mode &= ~MODE_APPKEYPAD;
1506 case '7': /* DECSC -- Save Cursor */
1507 tcursor(CURSOR_SAVE);
1510 case '8': /* DECRC -- Restore Cursor */
1511 tcursor(CURSOR_LOAD);
1515 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1516 (uchar) ascii, isprint(ascii)?ascii:'.');
1521 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
1528 tmoveto(term.c.x-1, term.c.y);
1531 tmoveto(0, term.c.y);
1536 /* go to first col if the mode is set */
1537 tnewline(IS_SET(MODE_CRLF));
1540 if(!(xw.state & WIN_FOCUSED))
1545 term.esc = ESC_START;
1548 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1549 tnewline(1); /* always go to first col */
1551 if(term.c.x+1 < term.col)
1552 tmoveto(term.c.x+1, term.c.y);
1554 term.c.state |= CURSOR_WRAPNEXT;
1560 tresize(int col, int row) {
1562 int minrow = MIN(row, term.row);
1563 int mincol = MIN(col, term.col);
1564 int slide = term.c.y - row + 1;
1566 if(col < 1 || row < 1)
1569 /* free unneeded rows */
1572 /* slide screen to keep cursor where we expect it -
1573 * tscrollup would work here, but we can optimize to
1574 * memmove because we're freeing the earlier lines */
1575 for(/* i = 0 */; i < slide; i++) {
1579 memmove(term.line, term.line + slide, row * sizeof(Line));
1580 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1582 for(i += row; i < term.row; i++) {
1587 /* resize to new height */
1588 term.line = realloc(term.line, row * sizeof(Line));
1589 term.alt = realloc(term.alt, row * sizeof(Line));
1590 term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
1592 /* resize each row to new width, zero-pad if needed */
1593 for(i = 0; i < minrow; i++) {
1595 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1596 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1597 for(x = mincol; x < col; x++) {
1598 term.line[i][x].state = 0;
1599 term.alt[i][x].state = 0;
1603 /* allocate any new rows */
1604 for(/* i == minrow */; i < row; i++) {
1606 term.line[i] = calloc(col, sizeof(Glyph));
1607 term.alt [i] = calloc(col, sizeof(Glyph));
1610 /* update terminal size */
1611 term.col = col, term.row = row;
1612 /* make use of the LIMIT in tmoveto */
1613 tmoveto(term.c.x, term.c.y);
1614 /* reset scrolling region */
1615 tsetscroll(0, row-1);
1621 xresize(int col, int row) {
1622 xw.w = MAX(1, 2*BORDER + col * xw.cw);
1623 xw.h = MAX(1, 2*BORDER + row * xw.ch);
1630 ulong white = WhitePixel(xw.dpy, xw.scr);
1632 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
1633 for(i = 0; i < LEN(colorname); i++) {
1636 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1638 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1640 dc.col[i] = color.pixel;
1643 /* load colors [16-255] ; same colors as xterm */
1644 for(i = 16, r = 0; r < 6; r++)
1645 for(g = 0; g < 6; g++)
1646 for(b = 0; b < 6; b++) {
1647 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1648 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1649 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1650 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1652 fprintf(stderr, "Could not allocate color %d\n", i);
1654 dc.col[i] = color.pixel;
1658 for(r = 0; r < 24; r++, i++) {
1659 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1660 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1662 fprintf(stderr, "Could not allocate color %d\n", i);
1664 dc.col[i] = color.pixel;
1669 xclear(int x1, int y1, int x2, int y2) {
1670 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1671 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1672 BORDER + x1 * xw.cw, BORDER + y1 * xw.ch,
1673 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1678 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1679 XWMHints wm = {.flags = InputHint, .input = 1};
1681 .flags = PSize | PResizeInc | PBaseSize,
1684 .height_inc = xw.ch,
1686 .base_height = 2*BORDER,
1687 .base_width = 2*BORDER,
1689 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1693 xinitfont(char *fontstr) {
1695 char *def, **missing;
1699 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1702 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1703 XFreeStringList(missing);
1709 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1710 XFontStruct **xfonts;
1714 *ascent = *descent = *lbearing = *rbearing = 0;
1715 n = XFontsOfFontSet(set, &xfonts, &font_names);
1716 for(i = 0; i < n; i++) {
1717 *ascent = MAX(*ascent, (*xfonts)->ascent);
1718 *descent = MAX(*descent, (*xfonts)->descent);
1719 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1720 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1726 initfonts(char *fontstr, char *bfontstr) {
1727 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1728 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1729 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1730 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1731 &dc.font.lbearing, &dc.font.rbearing);
1732 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1733 &dc.bfont.lbearing, &dc.bfont.rbearing);
1738 XSetWindowAttributes attrs;
1742 if(!(xw.dpy = XOpenDisplay(NULL)))
1743 die("Can't open display\n");
1744 xw.scr = XDefaultScreen(xw.dpy);
1747 initfonts(FONT, BOLDFONT);
1749 /* XXX: Assuming same size for bold font */
1750 xw.cw = dc.font.rbearing - dc.font.lbearing;
1751 xw.ch = dc.font.ascent + dc.font.descent;
1754 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1757 /* window - default size */
1758 xw.h = 2*BORDER + term.row * xw.ch;
1759 xw.w = 2*BORDER + term.col * xw.cw;
1761 attrs.background_pixel = dc.col[DefaultBG];
1762 attrs.border_pixel = dc.col[DefaultBG];
1763 attrs.bit_gravity = NorthWestGravity;
1764 attrs.event_mask = FocusChangeMask | KeyPressMask
1765 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1766 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1767 | EnterWindowMask | LeaveWindowMask;
1768 attrs.colormap = xw.cmap;
1770 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1771 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1772 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1773 XDefaultVisual(xw.dpy, xw.scr),
1774 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1777 xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
1781 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1782 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1783 | XIMStatusNothing, XNClientWindow, xw.win,
1784 XNFocusWindow, xw.win, NULL);
1786 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1788 /* white cursor, black outline */
1789 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1790 XDefineCursor(xw.dpy, xw.win, cursor);
1791 XRecolorCursor(xw.dpy, cursor,
1792 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1793 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1795 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1797 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1798 XMapWindow(xw.dpy, xw.win);
1804 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1805 int fg = base.fg, bg = base.bg, temp;
1806 int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1807 XFontSet fontset = dc.font.set;
1810 /* only switch default fg/bg if term is in RV mode */
1811 if(IS_SET(MODE_REVERSE)) {
1818 if(base.mode & ATTR_REVERSE)
1819 temp = fg, fg = bg, bg = temp;
1821 if(base.mode & ATTR_BOLD) {
1823 fontset = dc.bfont.set;
1826 XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
1827 XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
1829 if(base.mode & ATTR_GFX) {
1830 for(i = 0; i < bytelen; i++) {
1831 char c = gfx[(uint)s[i] % 256];
1834 else if(s[i] > 0x5f)
1839 XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen);
1841 if(base.mode & ATTR_UNDERLINE)
1842 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1845 /* copy buffer pixmap to screen pixmap */
1848 XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
1849 XdbeSwapBuffers(xw.dpy, swpinfo, 1);
1855 static int oldx = 0;
1856 static int oldy = 0;
1858 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1860 LIMIT(oldx, 0, term.col-1);
1861 LIMIT(oldy, 0, term.row-1);
1863 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1864 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1866 /* remove the old cursor */
1867 if(term.line[oldy][oldx].state & GLYPH_SET) {
1868 sl = utf8size(term.line[oldy][oldx].c);
1869 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1871 xclear(oldx, oldy, oldx, oldy);
1873 xcopy(oldx, oldy, 1, 1);
1875 /* draw the new one */
1876 if(!(term.c.state & CURSOR_HIDE)) {
1877 if(!(xw.state & WIN_FOCUSED))
1880 if(IS_SET(MODE_REVERSE))
1881 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
1884 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
1885 oldx = term.c.x, oldy = term.c.y;
1888 xcopy(term.c.x, term.c.y, 1, 1);
1893 drawregion(0, 0, term.col, term.row);
1895 gettimeofday(&xw.lastdraw, NULL);
1899 drawregion(int x1, int y1, int x2, int y2) {
1900 int ic, ib, x, y, ox, sl;
1902 char buf[DRAW_BUF_SIZ];
1904 if(!(xw.state & WIN_VISIBLE))
1907 for(y = y1; y < y2; y++) {
1910 xclear(0, y, term.col, y);
1912 base = term.line[y][0];
1914 for(x = x1; x < x2; x++) {
1915 new = term.line[y][x];
1916 if(sel.bx != -1 && *(new.c) && selected(x, y))
1917 new.mode ^= ATTR_REVERSE;
1918 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
1919 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
1920 xdraws(buf, base, ox, y, ic, ib);
1923 if(new.state & GLYPH_SET) {
1928 sl = utf8size(new.c);
1929 memcpy(buf+ib, new.c, sl);
1935 xdraws(buf, base, ox, y, ic, ib);
1941 expose(XEvent *ev) {
1942 XExposeEvent *e = &ev->xexpose;
1943 if(xw.state & WIN_REDRAW) {
1945 xw.state &= ~WIN_REDRAW;
1951 visibility(XEvent *ev) {
1952 XVisibilityEvent *e = &ev->xvisibility;
1953 if(e->state == VisibilityFullyObscured)
1954 xw.state &= ~WIN_VISIBLE;
1955 else if(!(xw.state & WIN_VISIBLE))
1956 /* need a full redraw for next Expose, not just a buf copy */
1957 xw.state |= WIN_VISIBLE | WIN_REDRAW;
1962 xw.state &= ~WIN_VISIBLE;
1966 xseturgency(int add) {
1967 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1968 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
1969 XSetWMHints(xw.dpy, xw.win, h);
1975 if(ev->type == FocusIn) {
1976 xw.state |= WIN_FOCUSED;
1979 xw.state &= ~WIN_FOCUSED;
1984 kmap(KeySym k, uint state) {
1987 for(i = 0; i < LEN(key); i++) {
1988 uint mask = key[i].mask;
1989 if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
1990 return (char*)key[i].s;
1996 kpress(XEvent *ev) {
1997 XKeyEvent *e = &ev->xkey;
2006 meta = e->state & Mod1Mask;
2007 shift = e->state & ShiftMask;
2008 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
2010 /* 1. custom keys from config.h */
2011 if((customkey = kmap(ksym, e->state)))
2012 ttywrite(customkey, strlen(customkey));
2013 /* 2. hardcoded (overrides X lookup) */
2020 /* XXX: shift up/down doesn't work */
2021 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
2029 if(IS_SET(MODE_CRLF))
2030 ttywrite("\r\n", 2);
2037 if(meta && len == 1)
2038 ttywrite("\033", 1);
2046 cmessage(XEvent *e) {
2048 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
2049 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
2050 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
2051 xw.state |= WIN_FOCUSED;
2053 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
2054 xw.state &= ~WIN_FOCUSED;
2064 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
2067 xw.w = e->xconfigure.width;
2068 xw.h = e->xconfigure.height;
2069 col = (xw.w - 2*BORDER) / xw.cw;
2070 row = (xw.h - 2*BORDER) / xw.ch;
2071 if(col == term.col && row == term.row)
2073 if(tresize(col, row))
2075 ttyresize(col, row);
2080 last_draw_too_old(void) {
2082 gettimeofday(&now, NULL);
2083 return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
2090 int xfd = XConnectionNumber(xw.dpy);
2091 struct timeval timeout = {0};
2092 bool stuff_to_print = 0;
2096 FD_SET(cmdfd, &rfd);
2099 timeout.tv_usec = SELECT_TIMEOUT;
2100 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
2103 die("select failed: %s\n", SERRNO);
2105 if(FD_ISSET(cmdfd, &rfd)) {
2110 if(stuff_to_print && last_draw_too_old()) {
2115 while(XPending(xw.dpy)) {
2116 XNextEvent(xw.dpy, &ev);
2117 if(XFilterEvent(&ev, xw.win))
2119 if(handler[ev.type])
2120 (handler[ev.type])(&ev);
2126 main(int argc, char *argv[]) {
2129 for(i = 1; i < argc; i++) {
2130 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
2132 if(++i < argc) opt_title = argv[i];
2135 if(++i < argc) opt_class = argv[i];
2138 if(++i < argc) opt_embed = argv[i];
2141 /* eat every remaining arguments */
2142 if(++i < argc) opt_cmd = &argv[i];
2151 setlocale(LC_CTYPE, "");