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>
30 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
32 #elif defined(__FreeBSD__) || defined(__DragonFly__)
37 "st " VERSION " (c) 2010-2012 st engineers\n" \
38 "usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
41 #define XEMBED_FOCUS_IN 4
42 #define XEMBED_FOCUS_OUT 5
45 #define ESC_TITLE_SIZ 256
46 #define ESC_BUF_SIZ 256
47 #define ESC_ARG_SIZ 16
48 #define DRAW_BUF_SIZ 1024
50 #define XK_NO_MOD UINT_MAX
53 #define SELECT_TIMEOUT (20*1000) /* 20 ms */
54 #define DRAW_TIMEOUT (20*1000) /* 20 ms */
56 #define SERRNO strerror(errno)
57 #define MIN(a, b) ((a) < (b) ? (a) : (b))
58 #define MAX(a, b) ((a) < (b) ? (b) : (a))
59 #define LEN(a) (sizeof(a) / sizeof(a[0]))
60 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
61 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
62 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
63 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
64 #define IS_SET(flag) (term.mode & (flag))
65 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
66 #define X2COL(x) (((x) - BORDER)/xw.cw)
67 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
69 enum glyph_attribute {
77 enum cursor_movement {
104 MODE_MOUSEMOTION = 64,
125 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
127 typedef unsigned char uchar;
128 typedef unsigned int uint;
129 typedef unsigned long ulong;
130 typedef unsigned short ushort;
133 char c[UTF_SIZ]; /* character code */
134 uchar mode; /* attribute flags */
135 ushort fg; /* foreground */
136 ushort bg; /* background */
137 uchar state; /* state flags */
143 Glyph attr; /* current char attributes */
149 /* CSI Escape sequence structs */
150 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
152 char buf[ESC_BUF_SIZ]; /* raw string */
153 int len; /* raw string length */
155 int arg[ESC_ARG_SIZ];
156 int narg; /* nb of args */
160 /* Internal representation of the screen */
162 int row; /* nb row */
163 int col; /* nb col */
164 Line* line; /* screen */
165 Line* alt; /* alternate screen */
166 bool* dirty; /* dirtyness of lines */
167 TCursor c; /* cursor */
168 int top; /* top scroll limit */
169 int bot; /* bottom scroll limit */
170 int mode; /* terminal mode flags */
171 int esc; /* escape state flags */
172 char title[ESC_TITLE_SIZ];
176 /* Purely graphic info */
186 int w; /* window width */
187 int h; /* window height */
188 int bufw; /* pixmap width */
189 int bufh; /* pixmap height */
190 int ch; /* char height */
191 int cw; /* char width */
192 char state; /* focus, redraw, visible */
193 struct timeval lastdraw;
203 /* TODO: use better name for vars... */
208 struct {int x, y;} b, e;
211 struct timeval tclick1;
212 struct timeval tclick2;
217 /* Drawing Context */
219 ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
230 static void die(const char*, ...);
231 static void draw(void);
232 static void drawregion(int, int, int, int);
233 static void execsh(void);
234 static void sigchld(int);
235 static void run(void);
236 static bool last_draw_too_old(void);
238 static void csidump(void);
239 static void csihandle(void);
240 static void csiparse(void);
241 static void csireset(void);
243 static void tclearregion(int, int, int, int);
244 static void tcursor(int);
245 static void tdeletechar(int);
246 static void tdeleteline(int);
247 static void tinsertblank(int);
248 static void tinsertblankline(int);
249 static void tmoveto(int, int);
250 static void tnew(int, int);
251 static void tnewline(int);
252 static void tputtab(void);
253 static void tputc(char*);
254 static void treset(void);
255 static int tresize(int, int);
256 static void tscrollup(int, int);
257 static void tscrolldown(int, int);
258 static void tsetattr(int*, int);
259 static void tsetchar(char*);
260 static void tsetscroll(int, int);
261 static void tswapscreen(void);
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);
272 static void xcopy(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 sel.tclick1.tv_sec = 0;
450 sel.tclick1.tv_usec = 0;
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 for(int i=sel.b.y; i<=sel.e.y; i++)
526 sel.ex = sel.bx = X2COL(e->xbutton.x);
527 sel.ey = sel.by = Y2ROW(e->xbutton.y);
534 int x, y, sz, sl, ls = 0;
539 sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
540 ptr = str = malloc(sz);
541 for(y = 0; y < term.row; y++) {
542 for(x = 0; x < term.col; x++)
543 if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
544 sl = utf8size(term.line[y][x].c);
545 memcpy(ptr, term.line[y][x].c, sl);
548 if(ls && y < sel.e.y)
557 selnotify(XEvent *e) {
558 ulong nitems, ofs, rem;
565 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
566 False, AnyPropertyType, &type, &format,
567 &nitems, &rem, &data)) {
568 fprintf(stderr, "Clipboard allocation failed\n");
571 ttywrite((const char *) data, nitems * format / 8);
573 /* number of 32-bit chunks returned */
574 ofs += nitems * format / 32;
580 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
584 selrequest(XEvent *e) {
585 XSelectionRequestEvent *xsre;
589 xsre = (XSelectionRequestEvent *) e;
590 xev.type = SelectionNotify;
591 xev.requestor = xsre->requestor;
592 xev.selection = xsre->selection;
593 xev.target = xsre->target;
594 xev.time = xsre->time;
598 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
599 if(xsre->target == xa_targets) {
600 /* respond with the supported type */
601 Atom string = sel.xtarget;
602 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
603 XA_ATOM, 32, PropModeReplace,
604 (uchar *) &string, 1);
605 xev.property = xsre->property;
606 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
607 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
608 xsre->target, 8, PropModeReplace,
609 (uchar *) sel.clip, strlen(sel.clip));
610 xev.property = xsre->property;
613 /* all done, send a notification to the listener */
614 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
615 fprintf(stderr, "Error sending SelectionNotify event\n");
620 /* register the selection for both the clipboard and the primary */
626 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
628 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
629 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
635 brelease(XEvent *e) {
636 if(IS_SET(MODE_MOUSE)) {
640 if(e->xbutton.button == Button2)
642 else if(e->xbutton.button == Button1) {
644 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
645 term.dirty[sel.ey] = 1;
646 if(sel.bx == sel.ex && sel.by == sel.ey) {
649 gettimeofday(&now, NULL);
651 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
652 /* triple click on the line */
653 sel.b.x = sel.bx = 0;
654 sel.e.x = sel.ex = term.col;
655 sel.b.y = sel.e.y = sel.ey;
657 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
658 /* double click to select word */
660 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
661 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
663 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
664 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
666 sel.b.y = sel.e.y = sel.ey;
672 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
673 gettimeofday(&sel.tclick1, NULL);
679 if(IS_SET(MODE_MOUSE)) {
684 int oldey = sel.ey, oldex = sel.ex;
685 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
687 if(oldey != sel.ey || oldex != sel.ex) {
688 int starty = MIN(oldey, sel.ey);
689 int endy = MAX(oldey, sel.ey);
690 for(int i = starty; i <= endy; i++)
698 die(const char *errstr, ...) {
701 va_start(ap, errstr);
702 vfprintf(stderr, errstr, ap);
710 char *envshell = getenv("SHELL");
712 DEFAULT(envshell, "sh");
713 putenv("TERM="TNAME);
714 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
715 execvp(args[0], args);
722 if(waitpid(pid, &stat, 0) < 0)
723 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
725 exit(WEXITSTATUS(stat));
734 /* seems to work fine on linux, openbsd and freebsd */
735 struct winsize w = {term.row, term.col, 0, 0};
736 if(openpty(&m, &s, NULL, NULL, &w) < 0)
737 die("openpty failed: %s\n", SERRNO);
739 switch(pid = fork()) {
741 die("fork failed\n");
744 setsid(); /* create a new process group */
745 dup2(s, STDIN_FILENO);
746 dup2(s, STDOUT_FILENO);
747 dup2(s, STDERR_FILENO);
748 if(ioctl(s, TIOCSCTTY, NULL) < 0)
749 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
757 signal(SIGCHLD, sigchld);
764 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
766 fprintf(stderr, "\n");
771 static char buf[BUFSIZ];
772 static int buflen = 0;
775 int charsize; /* size of utf8 char in bytes */
779 /* append read bytes to unprocessed bytes */
780 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
781 die("Couldn't read from shell: %s\n", SERRNO);
783 /* process every complete utf8 char */
786 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
787 charsize = utf8decode(ptr, &utf8c);
788 utf8encode(&utf8c, s);
794 /* keep any uncomplete utf8 char for the next call */
795 memmove(buf, ptr, buflen);
799 ttywrite(const char *s, size_t n) {
800 if(write(cmdfd, s, n) == -1)
801 die("write error on tty: %s\n", SERRNO);
805 ttyresize(int x, int y) {
810 w.ws_xpixel = w.ws_ypixel = 0;
811 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
812 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
819 for(i = 0; i < term.row; i++)
827 if(mode == CURSOR_SAVE)
829 else if(mode == CURSOR_LOAD)
830 term.c = c, tmoveto(c.x, c.y);
839 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
841 term.top = 0, term.bot = term.row - 1;
842 term.mode = MODE_WRAP;
843 tclearregion(0, 0, term.col-1, term.row-1);
847 tnew(int col, int row) {
848 /* set screen size */
849 term.row = row, term.col = col;
850 term.line = malloc(term.row * sizeof(Line));
851 term.alt = malloc(term.row * sizeof(Line));
852 term.dirty = malloc(term.row * sizeof(*term.dirty));
854 for(row = 0; row < term.row; row++) {
855 term.line[row] = malloc(term.col * sizeof(Glyph));
856 term.alt [row] = malloc(term.col * sizeof(Glyph));
865 Line* tmp = term.line;
866 term.line = term.alt;
868 term.mode ^= MODE_ALTSCREEN;
873 tscrolldown(int orig, int n) {
877 LIMIT(n, 0, term.bot-orig+1);
879 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
881 for(i = term.bot; i >= orig+n; i--) {
883 term.line[i] = term.line[i-n];
884 term.line[i-n] = temp;
894 tscrollup(int orig, int n) {
897 LIMIT(n, 0, term.bot-orig+1);
899 tclearregion(0, orig, term.col-1, orig+n-1);
901 for(i = orig; i <= term.bot-n; i++) {
903 term.line[i] = term.line[i+n];
904 term.line[i+n] = temp;
914 selscroll(int orig, int n) {
918 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
919 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
923 if(sel.by < term.top) {
927 if(sel.ey > term.bot) {
931 sel.b.y = sel.by, sel.b.x = sel.bx;
932 sel.e.y = sel.ey, sel.e.x = sel.ex;
937 tnewline(int first_col) {
940 tscrollup(term.top, 1);
943 tmoveto(first_col ? 0 : term.c.x, y);
949 char *p = escseq.buf;
953 escseq.priv = 1, p++;
955 while(p < escseq.buf+escseq.len) {
957 escseq.arg[escseq.narg] *= 10;
958 escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
960 if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
971 tmoveto(int x, int y) {
972 LIMIT(x, 0, term.col-1);
973 LIMIT(y, 0, term.row-1);
974 term.c.state &= ~CURSOR_WRAPNEXT;
981 term.dirty[term.c.y] = 1;
982 term.line[term.c.y][term.c.x] = term.c.attr;
983 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
984 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
988 tclearregion(int x1, int y1, int x2, int y2) {
992 temp = x1, x1 = x2, x2 = temp;
994 temp = y1, y1 = y2, y2 = temp;
996 LIMIT(x1, 0, term.col-1);
997 LIMIT(x2, 0, term.col-1);
998 LIMIT(y1, 0, term.row-1);
999 LIMIT(y2, 0, term.row-1);
1001 for(y = y1; y <= y2; y++) {
1003 for(x = x1; x <= x2; x++)
1004 term.line[y][x].state = 0;
1009 tdeletechar(int n) {
1010 int src = term.c.x + n;
1012 int size = term.col - src;
1014 term.dirty[term.c.y] = 1;
1016 if(src >= term.col) {
1017 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1020 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
1021 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1025 tinsertblank(int n) {
1028 int size = term.col - dst;
1030 term.dirty[term.c.y] = 1;
1032 if(dst >= term.col) {
1033 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1036 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
1037 tclearregion(src, term.c.y, dst - 1, term.c.y);
1041 tinsertblankline(int n) {
1042 if(term.c.y < term.top || term.c.y > term.bot)
1045 tscrolldown(term.c.y, n);
1049 tdeleteline(int n) {
1050 if(term.c.y < term.top || term.c.y > term.bot)
1053 tscrollup(term.c.y, n);
1057 tsetattr(int *attr, int l) {
1060 for(i = 0; i < l; i++) {
1063 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
1064 term.c.attr.fg = DefaultFG;
1065 term.c.attr.bg = DefaultBG;
1068 term.c.attr.mode |= ATTR_BOLD;
1071 term.c.attr.mode |= ATTR_UNDERLINE;
1074 term.c.attr.mode |= ATTR_REVERSE;
1077 term.c.attr.mode &= ~ATTR_BOLD;
1080 term.c.attr.mode &= ~ATTR_UNDERLINE;
1083 term.c.attr.mode &= ~ATTR_REVERSE;
1086 if(i + 2 < l && attr[i + 1] == 5) {
1088 if(BETWEEN(attr[i], 0, 255))
1089 term.c.attr.fg = attr[i];
1091 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
1094 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1097 term.c.attr.fg = DefaultFG;
1100 if(i + 2 < l && attr[i + 1] == 5) {
1102 if(BETWEEN(attr[i], 0, 255))
1103 term.c.attr.bg = attr[i];
1105 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
1108 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1111 term.c.attr.bg = DefaultBG;
1114 if(BETWEEN(attr[i], 30, 37))
1115 term.c.attr.fg = attr[i] - 30;
1116 else if(BETWEEN(attr[i], 40, 47))
1117 term.c.attr.bg = attr[i] - 40;
1118 else if(BETWEEN(attr[i], 90, 97))
1119 term.c.attr.fg = attr[i] - 90 + 8;
1120 else if(BETWEEN(attr[i], 100, 107))
1121 term.c.attr.fg = attr[i] - 100 + 8;
1123 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
1131 tsetscroll(int t, int b) {
1134 LIMIT(t, 0, term.row-1);
1135 LIMIT(b, 0, term.row-1);
1147 switch(escseq.mode) {
1150 fprintf(stderr, "erresc: unknown csi ");
1154 case '@': /* ICH -- Insert <n> blank char */
1155 DEFAULT(escseq.arg[0], 1);
1156 tinsertblank(escseq.arg[0]);
1158 case 'A': /* CUU -- Cursor <n> Up */
1160 DEFAULT(escseq.arg[0], 1);
1161 tmoveto(term.c.x, term.c.y-escseq.arg[0]);
1163 case 'B': /* CUD -- Cursor <n> Down */
1164 DEFAULT(escseq.arg[0], 1);
1165 tmoveto(term.c.x, term.c.y+escseq.arg[0]);
1167 case 'C': /* CUF -- Cursor <n> Forward */
1169 DEFAULT(escseq.arg[0], 1);
1170 tmoveto(term.c.x+escseq.arg[0], term.c.y);
1172 case 'D': /* CUB -- Cursor <n> Backward */
1173 DEFAULT(escseq.arg[0], 1);
1174 tmoveto(term.c.x-escseq.arg[0], term.c.y);
1176 case 'E': /* CNL -- Cursor <n> Down and first col */
1177 DEFAULT(escseq.arg[0], 1);
1178 tmoveto(0, term.c.y+escseq.arg[0]);
1180 case 'F': /* CPL -- Cursor <n> Up and first col */
1181 DEFAULT(escseq.arg[0], 1);
1182 tmoveto(0, term.c.y-escseq.arg[0]);
1184 case 'G': /* CHA -- Move to <col> */
1185 case '`': /* XXX: HPA -- same? */
1186 DEFAULT(escseq.arg[0], 1);
1187 tmoveto(escseq.arg[0]-1, term.c.y);
1189 case 'H': /* CUP -- Move to <row> <col> */
1190 case 'f': /* XXX: HVP -- same? */
1191 DEFAULT(escseq.arg[0], 1);
1192 DEFAULT(escseq.arg[1], 1);
1193 tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
1195 /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
1196 case 'J': /* ED -- Clear screen */
1198 switch(escseq.arg[0]) {
1200 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1201 if(term.c.y < term.row-1)
1202 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1206 tclearregion(0, 0, term.col-1, term.c.y-1);
1207 tclearregion(0, term.c.y, term.c.x, term.c.y);
1210 tclearregion(0, 0, term.col-1, term.row-1);
1216 case 'K': /* EL -- Clear line */
1217 switch(escseq.arg[0]) {
1219 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1222 tclearregion(0, term.c.y, term.c.x, term.c.y);
1225 tclearregion(0, term.c.y, term.col-1, term.c.y);
1229 case 'S': /* SU -- Scroll <n> line up */
1230 DEFAULT(escseq.arg[0], 1);
1231 tscrollup(term.top, escseq.arg[0]);
1233 case 'T': /* SD -- Scroll <n> line down */
1234 DEFAULT(escseq.arg[0], 1);
1235 tscrolldown(term.top, escseq.arg[0]);
1237 case 'L': /* IL -- Insert <n> blank lines */
1238 DEFAULT(escseq.arg[0], 1);
1239 tinsertblankline(escseq.arg[0]);
1241 case 'l': /* RM -- Reset Mode */
1243 switch(escseq.arg[0]) {
1245 term.mode &= ~MODE_APPKEYPAD;
1247 case 5: /* DECSCNM -- Remove reverse video */
1248 if(IS_SET(MODE_REVERSE)) {
1249 term.mode &= ~MODE_REVERSE;
1254 term.mode &= ~MODE_WRAP;
1256 case 12: /* att610 -- Stop blinking cursor (IGNORED) */
1259 term.mode &= ~MODE_CRLF;
1262 term.c.state |= CURSOR_HIDE;
1264 case 1000: /* disable X11 xterm mouse reporting */
1265 term.mode &= ~MODE_MOUSEBTN;
1268 term.mode &= ~MODE_MOUSEMOTION;
1270 case 1049: /* = 1047 and 1048 */
1273 if(IS_SET(MODE_ALTSCREEN)) {
1274 tclearregion(0, 0, term.col-1, term.row-1);
1277 if(escseq.arg[0] != 1049)
1280 tcursor(CURSOR_LOAD);
1286 switch(escseq.arg[0]) {
1288 term.mode &= ~MODE_INSERT;
1295 case 'M': /* DL -- Delete <n> lines */
1296 DEFAULT(escseq.arg[0], 1);
1297 tdeleteline(escseq.arg[0]);
1299 case 'X': /* ECH -- Erase <n> char */
1300 DEFAULT(escseq.arg[0], 1);
1301 tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
1303 case 'P': /* DCH -- Delete <n> char */
1304 DEFAULT(escseq.arg[0], 1);
1305 tdeletechar(escseq.arg[0]);
1307 /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
1308 case 'd': /* VPA -- Move to <row> */
1309 DEFAULT(escseq.arg[0], 1);
1310 tmoveto(term.c.x, escseq.arg[0]-1);
1312 case 'h': /* SM -- Set terminal mode */
1314 switch(escseq.arg[0]) {
1316 term.mode |= MODE_APPKEYPAD;
1318 case 5: /* DECSCNM -- Reverve video */
1319 if(!IS_SET(MODE_REVERSE)) {
1320 term.mode |= MODE_REVERSE;
1325 term.mode |= MODE_WRAP;
1328 term.mode |= MODE_CRLF;
1330 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1331 /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
1332 if(escseq.narg > 1 && escseq.arg[1] != 25)
1335 term.c.state &= ~CURSOR_HIDE;
1337 case 1000: /* 1000,1002: enable xterm mouse report */
1338 term.mode |= MODE_MOUSEBTN;
1341 term.mode |= MODE_MOUSEMOTION;
1343 case 1049: /* = 1047 and 1048 */
1346 if(IS_SET(MODE_ALTSCREEN))
1347 tclearregion(0, 0, term.col-1, term.row-1);
1350 if(escseq.arg[0] != 1049)
1353 tcursor(CURSOR_SAVE);
1355 default: goto unknown;
1358 switch(escseq.arg[0]) {
1360 term.mode |= MODE_INSERT;
1362 default: goto unknown;
1366 case 'm': /* SGR -- Terminal attribute (color) */
1367 tsetattr(escseq.arg, escseq.narg);
1369 case 'r': /* DECSTBM -- Set Scrolling Region */
1373 DEFAULT(escseq.arg[0], 1);
1374 DEFAULT(escseq.arg[1], term.row);
1375 tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
1379 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1380 tcursor(CURSOR_SAVE);
1382 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1383 tcursor(CURSOR_LOAD);
1392 for(i = 0; i < escseq.len; i++) {
1393 uint c = escseq.buf[i] & 0xff;
1394 if(isprint(c)) putchar(c);
1395 else if(c == '\n') printf("(\\n)");
1396 else if(c == '\r') printf("(\\r)");
1397 else if(c == 0x1b) printf("(\\e)");
1398 else printf("(%02x)", c);
1405 memset(&escseq, 0, sizeof(escseq));
1410 int space = TAB - term.c.x % TAB;
1411 tmoveto(term.c.x + space, term.c.y);
1417 if(term.esc & ESC_START) {
1418 if(term.esc & ESC_CSI) {
1419 escseq.buf[escseq.len++] = ascii;
1420 if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
1422 csiparse(), csihandle();
1424 /* TODO: handle other OSC */
1425 } else if(term.esc & ESC_OSC) {
1428 term.esc = ESC_START | ESC_TITLE;
1430 } else if(term.esc & ESC_TITLE) {
1431 if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
1433 term.title[term.titlelen] = '\0';
1434 XStoreName(xw.dpy, xw.win, term.title);
1436 term.title[term.titlelen++] = ascii;
1438 } else if(term.esc & ESC_ALTCHARSET) {
1440 case '0': /* Line drawing crap */
1441 term.c.attr.mode |= ATTR_GFX;
1443 case 'B': /* Back to regular text */
1444 term.c.attr.mode &= ~ATTR_GFX;
1447 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1453 term.esc |= ESC_CSI;
1456 term.esc |= ESC_OSC;
1459 term.esc |= ESC_ALTCHARSET;
1461 case 'D': /* IND -- Linefeed */
1462 if(term.c.y == term.bot)
1463 tscrollup(term.top, 1);
1465 tmoveto(term.c.x, term.c.y+1);
1468 case 'E': /* NEL -- Next line */
1469 tnewline(1); /* always go to first col */
1472 case 'M': /* RI -- Reverse index */
1473 if(term.c.y == term.top)
1474 tscrolldown(term.top, 1);
1476 tmoveto(term.c.x, term.c.y-1);
1479 case 'c': /* RIS -- Reset to inital state */
1483 case '=': /* DECPAM -- Application keypad */
1484 term.mode |= MODE_APPKEYPAD;
1487 case '>': /* DECPNM -- Normal keypad */
1488 term.mode &= ~MODE_APPKEYPAD;
1491 case '7': /* DECSC -- Save Cursor */
1492 tcursor(CURSOR_SAVE);
1495 case '8': /* DECRC -- Restore Cursor */
1496 tcursor(CURSOR_LOAD);
1500 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1501 (uchar) ascii, isprint(ascii)?ascii:'.');
1506 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
1513 tmoveto(term.c.x-1, term.c.y);
1516 tmoveto(0, term.c.y);
1521 /* go to first col if the mode is set */
1522 tnewline(IS_SET(MODE_CRLF));
1525 if(!(xw.state & WIN_FOCUSED))
1530 term.esc = ESC_START;
1533 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1534 tnewline(1); /* always go to first col */
1536 if(term.c.x+1 < term.col)
1537 tmoveto(term.c.x+1, term.c.y);
1539 term.c.state |= CURSOR_WRAPNEXT;
1545 tresize(int col, int row) {
1547 int minrow = MIN(row, term.row);
1548 int mincol = MIN(col, term.col);
1549 int slide = term.c.y - row + 1;
1551 if(col < 1 || row < 1)
1554 /* free unneeded rows */
1557 /* slide screen to keep cursor where we expect it -
1558 * tscrollup would work here, but we can optimize to
1559 * memmove because we're freeing the earlier lines */
1560 for(/* i = 0 */; i < slide; i++) {
1564 memmove(term.line, term.line + slide, row * sizeof(Line));
1565 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1567 for(i += row; i < term.row; i++) {
1572 /* resize to new height */
1573 term.line = realloc(term.line, row * sizeof(Line));
1574 term.alt = realloc(term.alt, row * sizeof(Line));
1575 term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
1577 /* resize each row to new width, zero-pad if needed */
1578 for(i = 0; i < minrow; i++) {
1580 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1581 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1582 for(x = mincol; x < col; x++) {
1583 term.line[i][x].state = 0;
1584 term.alt[i][x].state = 0;
1588 /* allocate any new rows */
1589 for(/* i == minrow */; i < row; i++) {
1591 term.line[i] = calloc(col, sizeof(Glyph));
1592 term.alt [i] = calloc(col, sizeof(Glyph));
1595 /* update terminal size */
1596 term.col = col, term.row = row;
1597 /* make use of the LIMIT in tmoveto */
1598 tmoveto(term.c.x, term.c.y);
1599 /* reset scrolling region */
1600 tsetscroll(0, row-1);
1606 xresize(int col, int row) {
1612 xw.bufw = MAX(1, col * xw.cw);
1613 xw.bufh = MAX(1, row * xw.ch);
1614 newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1615 XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
1616 XFreePixmap(xw.dpy, xw.buf);
1617 XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
1619 XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
1620 xw.bufw-oldw, MIN(xw.bufh, oldh));
1621 else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
1622 XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
1623 xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
1626 XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
1627 xw.bufw, xw.bufh-oldh);
1628 else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
1629 XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
1630 xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
1639 ulong white = WhitePixel(xw.dpy, xw.scr);
1641 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
1642 for(i = 0; i < LEN(colorname); i++) {
1645 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1647 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1649 dc.col[i] = color.pixel;
1652 /* load colors [16-255] ; same colors as xterm */
1653 for(i = 16, r = 0; r < 6; r++)
1654 for(g = 0; g < 6; g++)
1655 for(b = 0; b < 6; b++) {
1656 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1657 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1658 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1659 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1661 fprintf(stderr, "Could not allocate color %d\n", i);
1663 dc.col[i] = color.pixel;
1667 for(r = 0; r < 24; r++, i++) {
1668 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1669 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1671 fprintf(stderr, "Could not allocate color %d\n", i);
1673 dc.col[i] = color.pixel;
1678 xclear(int x1, int y1, int x2, int y2) {
1679 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1680 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1681 x1 * xw.cw, y1 * xw.ch,
1682 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1687 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1688 XWMHints wm = {.flags = InputHint, .input = 1};
1690 .flags = PSize | PResizeInc | PBaseSize,
1693 .height_inc = xw.ch,
1695 .base_height = 2*BORDER,
1696 .base_width = 2*BORDER,
1698 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1702 xinitfont(char *fontstr) {
1704 char *def, **missing;
1708 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1711 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1712 XFreeStringList(missing);
1718 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1719 XFontStruct **xfonts;
1723 *ascent = *descent = *lbearing = *rbearing = 0;
1724 n = XFontsOfFontSet(set, &xfonts, &font_names);
1725 for(i = 0; i < n; i++) {
1726 *ascent = MAX(*ascent, (*xfonts)->ascent);
1727 *descent = MAX(*descent, (*xfonts)->descent);
1728 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1729 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1735 initfonts(char *fontstr, char *bfontstr) {
1736 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1737 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1738 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1739 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1740 &dc.font.lbearing, &dc.font.rbearing);
1741 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1742 &dc.bfont.lbearing, &dc.bfont.rbearing);
1747 XSetWindowAttributes attrs;
1751 if(!(xw.dpy = XOpenDisplay(NULL)))
1752 die("Can't open display\n");
1753 xw.scr = XDefaultScreen(xw.dpy);
1756 initfonts(FONT, BOLDFONT);
1758 /* XXX: Assuming same size for bold font */
1759 xw.cw = dc.font.rbearing - dc.font.lbearing;
1760 xw.ch = dc.font.ascent + dc.font.descent;
1763 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1766 /* window - default size */
1767 xw.bufh = term.row * xw.ch;
1768 xw.bufw = term.col * xw.cw;
1769 xw.h = xw.bufh + 2*BORDER;
1770 xw.w = xw.bufw + 2*BORDER;
1772 attrs.background_pixel = dc.col[DefaultBG];
1773 attrs.border_pixel = dc.col[DefaultBG];
1774 attrs.bit_gravity = NorthWestGravity;
1775 attrs.event_mask = FocusChangeMask | KeyPressMask
1776 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1777 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1778 | EnterWindowMask | LeaveWindowMask;
1779 attrs.colormap = xw.cmap;
1781 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1782 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1783 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1784 XDefaultVisual(xw.dpy, xw.scr),
1785 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1788 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1792 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1793 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1794 | XIMStatusNothing, XNClientWindow, xw.win,
1795 XNFocusWindow, xw.win, NULL);
1797 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1799 /* white cursor, black outline */
1800 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1801 XDefineCursor(xw.dpy, xw.win, cursor);
1802 XRecolorCursor(xw.dpy, cursor,
1803 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1804 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1806 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1808 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1809 XMapWindow(xw.dpy, xw.win);
1815 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1816 int fg = base.fg, bg = base.bg, temp;
1817 int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1818 XFontSet fontset = dc.font.set;
1821 /* only switch default fg/bg if term is in RV mode */
1822 if(IS_SET(MODE_REVERSE)) {
1829 if(base.mode & ATTR_REVERSE)
1830 temp = fg, fg = bg, bg = temp;
1832 if(base.mode & ATTR_BOLD) {
1834 fontset = dc.bfont.set;
1837 XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
1838 XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
1840 if(base.mode & ATTR_GFX) {
1841 for(i = 0; i < bytelen; i++) {
1842 char c = gfx[(uint)s[i] % 256];
1845 else if(s[i] > 0x5f)
1850 XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen);
1852 if(base.mode & ATTR_UNDERLINE)
1853 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1856 /* copy buffer pixmap to screen pixmap */
1858 xcopy(int x, int y, int cols, int rows) {
1859 int src_x = x*xw.cw, src_y = y*xw.ch, src_w = cols*xw.cw, src_h = rows*xw.ch;
1860 int dst_x = BORDER+src_x, dst_y = BORDER+src_y;
1861 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, src_x, src_y, src_w, src_h, dst_x, dst_y);
1866 static int oldx = 0;
1867 static int oldy = 0;
1869 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1871 LIMIT(oldx, 0, term.col-1);
1872 LIMIT(oldy, 0, term.row-1);
1874 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1875 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1877 /* remove the old cursor */
1878 if(term.line[oldy][oldx].state & GLYPH_SET) {
1879 sl = utf8size(term.line[oldy][oldx].c);
1880 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1882 xclear(oldx, oldy, oldx, oldy);
1884 xcopy(oldx, oldy, 1, 1);
1886 /* draw the new one */
1887 if(!(term.c.state & CURSOR_HIDE)) {
1888 if(!(xw.state & WIN_FOCUSED))
1891 if(IS_SET(MODE_REVERSE))
1892 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
1895 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
1896 oldx = term.c.x, oldy = term.c.y;
1899 xcopy(term.c.x, term.c.y, 1, 1);
1904 drawregion(0, 0, term.col, term.row);
1905 gettimeofday(&xw.lastdraw, NULL);
1909 drawregion(int x1, int y1, int x2, int y2) {
1910 int ic, ib, x, y, ox, sl;
1912 char buf[DRAW_BUF_SIZ];
1914 if(!(xw.state & WIN_VISIBLE))
1917 for(y = y1; y < y2; y++) {
1920 xclear(0, y, term.col, y);
1922 base = term.line[y][0];
1924 for(x = x1; x < x2; x++) {
1925 new = term.line[y][x];
1926 if(sel.bx != -1 && *(new.c) && selected(x, y))
1927 new.mode ^= ATTR_REVERSE;
1928 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
1929 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
1930 xdraws(buf, base, ox, y, ic, ib);
1933 if(new.state & GLYPH_SET) {
1938 sl = utf8size(new.c);
1939 memcpy(buf+ib, new.c, sl);
1945 xdraws(buf, base, ox, y, ic, ib);
1946 xcopy(0, y, term.col, 1);
1952 expose(XEvent *ev) {
1953 XExposeEvent *e = &ev->xexpose;
1954 if(xw.state & WIN_REDRAW) {
1956 xw.state &= ~WIN_REDRAW;
1957 xcopy(0, 0, term.col, term.row);
1960 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
1961 e->width, e->height, e->x, e->y);
1965 visibility(XEvent *ev) {
1966 XVisibilityEvent *e = &ev->xvisibility;
1967 if(e->state == VisibilityFullyObscured)
1968 xw.state &= ~WIN_VISIBLE;
1969 else if(!(xw.state & WIN_VISIBLE))
1970 /* need a full redraw for next Expose, not just a buf copy */
1971 xw.state |= WIN_VISIBLE | WIN_REDRAW;
1976 xw.state &= ~WIN_VISIBLE;
1980 xseturgency(int add) {
1981 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1982 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
1983 XSetWMHints(xw.dpy, xw.win, h);
1989 if(ev->type == FocusIn) {
1990 xw.state |= WIN_FOCUSED;
1993 xw.state &= ~WIN_FOCUSED;
1998 kmap(KeySym k, uint state) {
2001 for(i = 0; i < LEN(key); i++) {
2002 uint mask = key[i].mask;
2003 if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
2004 return (char*)key[i].s;
2010 kpress(XEvent *ev) {
2011 XKeyEvent *e = &ev->xkey;
2020 meta = e->state & Mod1Mask;
2021 shift = e->state & ShiftMask;
2022 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
2024 /* 1. custom keys from config.h */
2025 if((customkey = kmap(ksym, e->state)))
2026 ttywrite(customkey, strlen(customkey));
2027 /* 2. hardcoded (overrides X lookup) */
2034 /* XXX: shift up/down doesn't work */
2035 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
2043 if(IS_SET(MODE_CRLF))
2044 ttywrite("\r\n", 2);
2051 if(meta && len == 1)
2052 ttywrite("\033", 1);
2060 cmessage(XEvent *e) {
2062 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
2063 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
2064 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
2065 xw.state |= WIN_FOCUSED;
2067 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
2068 xw.state &= ~WIN_FOCUSED;
2078 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
2081 xw.w = e->xconfigure.width;
2082 xw.h = e->xconfigure.height;
2083 col = (xw.w - 2*BORDER) / xw.cw;
2084 row = (xw.h - 2*BORDER) / xw.ch;
2085 if(col == term.col && row == term.row)
2087 if(tresize(col, row))
2089 ttyresize(col, row);
2094 last_draw_too_old(void) {
2096 gettimeofday(&now, NULL);
2097 return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
2104 int xfd = XConnectionNumber(xw.dpy);
2105 struct timeval timeout = {0};
2106 bool stuff_to_print = 0;
2110 FD_SET(cmdfd, &rfd);
2113 timeout.tv_usec = SELECT_TIMEOUT;
2114 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
2117 die("select failed: %s\n", SERRNO);
2119 if(FD_ISSET(cmdfd, &rfd)) {
2124 if(stuff_to_print && last_draw_too_old()) {
2129 while(XPending(xw.dpy)) {
2130 XNextEvent(xw.dpy, &ev);
2131 if(XFilterEvent(&ev, xw.win))
2133 if(handler[ev.type])
2134 (handler[ev.type])(&ev);
2140 main(int argc, char *argv[]) {
2143 for(i = 1; i < argc; i++) {
2144 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
2146 if(++i < argc) opt_title = argv[i];
2149 if(++i < argc) opt_class = argv[i];
2152 if(++i < argc) opt_embed = argv[i];
2155 /* eat every remaining arguments */
2156 if(++i < argc) opt_cmd = &argv[i];
2165 setlocale(LC_CTYPE, "");