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_BUF_SIZ 256
47 #define ESC_ARG_SIZ 16
48 #define STR_BUF_SIZ 256
49 #define STR_ARG_SIZ 16
50 #define DRAW_BUF_SIZ 1024
52 #define XK_NO_MOD UINT_MAX
55 #define SELECT_TIMEOUT (20*1000) /* 20 ms */
56 #define DRAW_TIMEOUT (20*1000) /* 20 ms */
58 #define SERRNO strerror(errno)
59 #define MIN(a, b) ((a) < (b) ? (a) : (b))
60 #define MAX(a, b) ((a) < (b) ? (b) : (a))
61 #define LEN(a) (sizeof(a) / sizeof(a[0]))
62 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
63 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
64 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
65 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
66 #define IS_SET(flag) (term.mode & (flag))
67 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
68 #define X2COL(x) (((x) - BORDER)/xw.cw)
69 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
71 enum glyph_attribute {
79 enum cursor_movement {
106 MODE_MOUSEMOTION = 64,
114 ESC_STR = 4, /* DSC, OSC, PM, APC */
116 ESC_STR_END = 16, /* a final string was encountered */
127 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
129 typedef unsigned char uchar;
130 typedef unsigned int uint;
131 typedef unsigned long ulong;
132 typedef unsigned short ushort;
135 char c[UTF_SIZ]; /* character code */
136 uchar mode; /* attribute flags */
137 ushort fg; /* foreground */
138 ushort bg; /* background */
139 uchar state; /* state flags */
145 Glyph attr; /* current char attributes */
151 /* CSI Escape sequence structs */
152 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
154 char buf[ESC_BUF_SIZ]; /* raw string */
155 int len; /* raw string length */
157 int arg[ESC_ARG_SIZ];
158 int narg; /* nb of args */
162 /* STR Escape sequence structs */
163 /* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
165 char type; /* ESC type ... */
166 char buf[STR_BUF_SIZ]; /* raw string */
167 int len; /* raw string length */
168 char *args[STR_ARG_SIZ];
169 int narg; /* nb of args */
172 /* Internal representation of the screen */
174 int row; /* nb row */
175 int col; /* nb col */
176 Line* line; /* screen */
177 Line* alt; /* alternate screen */
178 bool* dirty; /* dirtyness of lines */
179 TCursor c; /* cursor */
180 int top; /* top scroll limit */
181 int bot; /* bottom scroll limit */
182 int mode; /* terminal mode flags */
183 int esc; /* escape state flags */
187 /* Purely graphic info */
197 int w; /* window width */
198 int h; /* window height */
199 int ch; /* char height */
200 int cw; /* char width */
201 char state; /* focus, redraw, visible */
202 struct timeval lastdraw;
212 /* TODO: use better name for vars... */
217 struct {int x, y;} b, e;
220 struct timeval tclick1;
221 struct timeval tclick2;
226 /* Drawing Context */
228 ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
239 static void die(const char*, ...);
240 static void draw(void);
241 static void drawregion(int, int, int, int);
242 static void execsh(void);
243 static void sigchld(int);
244 static void run(void);
245 static bool last_draw_too_old(void);
247 static void csidump(void);
248 static void csihandle(void);
249 static void csiparse(void);
250 static void csireset(void);
251 static void strdump(void);
252 static void strhandle(void);
253 static void strparse(void);
254 static void strreset(void);
256 static void tclearregion(int, int, int, int);
257 static void tcursor(int);
258 static void tdeletechar(int);
259 static void tdeleteline(int);
260 static void tinsertblank(int);
261 static void tinsertblankline(int);
262 static void tmoveto(int, int);
263 static void tnew(int, int);
264 static void tnewline(int);
265 static void tputtab(bool);
266 static void tputc(char*);
267 static void treset(void);
268 static int tresize(int, int);
269 static void tscrollup(int, int);
270 static void tscrolldown(int, int);
271 static void tsetattr(int*, int);
272 static void tsetchar(char*);
273 static void tsetscroll(int, int);
274 static void tswapscreen(void);
275 static void tsetdirt(int, int);
276 static void tsetmode(bool, bool, int *, int);
277 static void tfulldirt(void);
279 static void ttynew(void);
280 static void ttyread(void);
281 static void ttyresize(int, int);
282 static void ttywrite(const char *, size_t);
284 static void xdraws(char *, Glyph, int, int, int, int);
285 static void xhints(void);
286 static void xclear(int, int, int, int);
288 static void xdrawcursor(void);
289 static void xinit(void);
290 static void xloadcols(void);
291 static void xseturgency(int);
292 static void xsetsel(char*);
293 static void xresize(int, int);
295 static void expose(XEvent *);
296 static void visibility(XEvent *);
297 static void unmap(XEvent *);
298 static char* kmap(KeySym, uint);
299 static void kpress(XEvent *);
300 static void cmessage(XEvent *);
301 static void resize(XEvent *);
302 static void focus(XEvent *);
303 static void brelease(XEvent *);
304 static void bpress(XEvent *);
305 static void bmotion(XEvent *);
306 static void selnotify(XEvent *);
307 static void selrequest(XEvent *);
309 static void selinit(void);
310 static inline bool selected(int, int);
311 static void selcopy(void);
312 static void selpaste();
313 static void selscroll(int, int);
315 static int utf8decode(char *, long *);
316 static int utf8encode(long *, char *);
317 static int utf8size(char *);
318 static int isfullutf8(char *, int);
320 static void (*handler[LASTEvent])(XEvent *) = {
322 [ClientMessage] = cmessage,
323 [ConfigureNotify] = resize,
324 [VisibilityNotify] = visibility,
325 [UnmapNotify] = unmap,
329 [MotionNotify] = bmotion,
330 [ButtonPress] = bpress,
331 [ButtonRelease] = brelease,
332 [SelectionNotify] = selnotify,
333 [SelectionRequest] = selrequest,
340 static CSIEscape csiescseq;
341 static STREscape strescseq;
344 static Selection sel;
345 static char **opt_cmd = NULL;
346 static char *opt_title = NULL;
347 static char *opt_embed = NULL;
348 static char *opt_class = NULL;
351 utf8decode(char *s, long *u) {
357 if(~c & B7) { /* 0xxxxxxx */
360 } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
361 *u = c&(B4|B3|B2|B1|B0);
363 } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
364 *u = c&(B3|B2|B1|B0);
366 } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
371 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
373 if((c & (B7|B6)) != B7) /* 10xxxxxx */
376 *u |= c & (B5|B4|B3|B2|B1|B0);
378 if((n == 1 && *u < 0x80) ||
379 (n == 2 && *u < 0x800) ||
380 (n == 3 && *u < 0x10000) ||
381 (*u >= 0xD800 && *u <= 0xDFFF))
390 utf8encode(long *u, char *s) {
398 *sp = uc; /* 0xxxxxxx */
400 } else if(*u < 0x800) {
401 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
403 } else if(uc < 0x10000) {
404 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
406 } else if(uc <= 0x10FFFF) {
407 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
412 for(i=n,++sp; i>0; --i,++sp)
413 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
423 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
424 UTF-8 otherwise return 0 */
426 isfullutf8(char *s, int b) {
434 else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
436 else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
438 ((b == 2) && (*c2&(B7|B6)) == B7)))
440 else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
442 ((b == 2) && (*c2&(B7|B6)) == B7) ||
443 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
455 else if((c&(B7|B6|B5)) == (B7|B6))
457 else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
465 memset(&sel.tclick1, 0, sizeof(sel.tclick1));
466 memset(&sel.tclick2, 0, sizeof(sel.tclick2));
470 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
471 if(sel.xtarget == None)
472 sel.xtarget = XA_STRING;
476 selected(int x, int y) {
477 if(sel.ey == y && sel.by == y) {
478 int bx = MIN(sel.bx, sel.ex);
479 int ex = MAX(sel.bx, sel.ex);
480 return BETWEEN(x, bx, ex);
482 return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
483 || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
487 getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
489 *b = e->xbutton.button;
491 *x = X2COL(e->xbutton.x);
492 *y = Y2ROW(e->xbutton.y);
493 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
494 sel.b.y = MIN(sel.by, sel.ey);
495 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
496 sel.e.y = MAX(sel.by, sel.ey);
500 mousereport(XEvent *e) {
501 int x = X2COL(e->xbutton.x);
502 int y = Y2ROW(e->xbutton.y);
503 int button = e->xbutton.button;
504 int state = e->xbutton.state;
505 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
506 static int ob, ox, oy;
509 if(e->xbutton.type == MotionNotify) {
510 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
514 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
520 if(e->xbutton.type == ButtonPress) {
526 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
527 + (state & Mod4Mask ? 8 : 0)
528 + (state & ControlMask ? 16 : 0);
530 ttywrite(buf, sizeof(buf));
535 if(IS_SET(MODE_MOUSE))
537 else if(e->xbutton.button == Button1) {
539 tsetdirt(sel.b.y, sel.e.y);
541 sel.ex = sel.bx = X2COL(e->xbutton.x);
542 sel.ey = sel.by = Y2ROW(e->xbutton.y);
549 int x, y, bufsize, is_selected = 0;
555 bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
556 ptr = str = malloc(bufsize);
558 /* append every set & selected glyph to the selection */
559 for(y = 0; y < term.row; y++) {
560 for(x = 0; x < term.col; x++) {
561 is_selected = selected(x, y);
562 if((term.line[y][x].state & GLYPH_SET) && is_selected) {
563 int size = utf8size(term.line[y][x].c);
564 memcpy(ptr, term.line[y][x].c, size);
569 /* \n at the end of every selected line except for the last one */
570 if(is_selected && y < sel.e.y)
579 selnotify(XEvent *e) {
580 ulong nitems, ofs, rem;
587 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
588 False, AnyPropertyType, &type, &format,
589 &nitems, &rem, &data)) {
590 fprintf(stderr, "Clipboard allocation failed\n");
593 ttywrite((const char *) data, nitems * format / 8);
595 /* number of 32-bit chunks returned */
596 ofs += nitems * format / 32;
602 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
606 selrequest(XEvent *e) {
607 XSelectionRequestEvent *xsre;
611 xsre = (XSelectionRequestEvent *) e;
612 xev.type = SelectionNotify;
613 xev.requestor = xsre->requestor;
614 xev.selection = xsre->selection;
615 xev.target = xsre->target;
616 xev.time = xsre->time;
620 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
621 if(xsre->target == xa_targets) {
622 /* respond with the supported type */
623 Atom string = sel.xtarget;
624 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
625 XA_ATOM, 32, PropModeReplace,
626 (uchar *) &string, 1);
627 xev.property = xsre->property;
628 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
629 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
630 xsre->target, 8, PropModeReplace,
631 (uchar *) sel.clip, strlen(sel.clip));
632 xev.property = xsre->property;
635 /* all done, send a notification to the listener */
636 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
637 fprintf(stderr, "Error sending SelectionNotify event\n");
642 /* register the selection for both the clipboard and the primary */
648 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
650 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
651 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
657 brelease(XEvent *e) {
658 if(IS_SET(MODE_MOUSE)) {
662 if(e->xbutton.button == Button2)
664 else if(e->xbutton.button == Button1) {
666 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
667 term.dirty[sel.ey] = 1;
668 if(sel.bx == sel.ex && sel.by == sel.ey) {
671 gettimeofday(&now, NULL);
673 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
674 /* triple click on the line */
675 sel.b.x = sel.bx = 0;
676 sel.e.x = sel.ex = term.col;
677 sel.b.y = sel.e.y = sel.ey;
679 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
680 /* double click to select word */
682 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
683 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
685 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
686 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
688 sel.b.y = sel.e.y = sel.ey;
694 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
695 gettimeofday(&sel.tclick1, NULL);
701 if(IS_SET(MODE_MOUSE)) {
706 int oldey = sel.ey, oldex = sel.ex;
707 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
709 if(oldey != sel.ey || oldex != sel.ex) {
710 int starty = MIN(oldey, sel.ey);
711 int endy = MAX(oldey, sel.ey);
712 tsetdirt(starty, endy);
719 die(const char *errstr, ...) {
722 va_start(ap, errstr);
723 vfprintf(stderr, errstr, ap);
731 char *envshell = getenv("SHELL");
733 DEFAULT(envshell, SHELL);
734 putenv("TERM="TNAME);
735 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
736 execvp(args[0], args);
743 if(waitpid(pid, &stat, 0) < 0)
744 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
746 exit(WEXITSTATUS(stat));
755 /* seems to work fine on linux, openbsd and freebsd */
756 struct winsize w = {term.row, term.col, 0, 0};
757 if(openpty(&m, &s, NULL, NULL, &w) < 0)
758 die("openpty failed: %s\n", SERRNO);
760 switch(pid = fork()) {
762 die("fork failed\n");
765 setsid(); /* create a new process group */
766 dup2(s, STDIN_FILENO);
767 dup2(s, STDOUT_FILENO);
768 dup2(s, STDERR_FILENO);
769 if(ioctl(s, TIOCSCTTY, NULL) < 0)
770 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
778 signal(SIGCHLD, sigchld);
785 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
787 fprintf(stderr, "\n");
792 static char buf[BUFSIZ];
793 static int buflen = 0;
796 int charsize; /* size of utf8 char in bytes */
800 /* append read bytes to unprocessed bytes */
801 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
802 die("Couldn't read from shell: %s\n", SERRNO);
804 /* process every complete utf8 char */
807 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
808 charsize = utf8decode(ptr, &utf8c);
809 utf8encode(&utf8c, s);
815 /* keep any uncomplete utf8 char for the next call */
816 memmove(buf, ptr, buflen);
820 ttywrite(const char *s, size_t n) {
821 if(write(cmdfd, s, n) == -1)
822 die("write error on tty: %s\n", SERRNO);
826 ttyresize(int x, int y) {
831 w.ws_xpixel = w.ws_ypixel = 0;
832 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
833 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
837 tsetdirt(int top, int bot)
841 LIMIT(top, 0, term.row-1);
842 LIMIT(bot, 0, term.row-1);
844 for(i = top; i <= bot; i++)
851 tsetdirt(0, term.row-1);
858 if(mode == CURSOR_SAVE)
860 else if(mode == CURSOR_LOAD)
861 term.c = c, tmoveto(c.x, c.y);
871 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
873 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
874 for (i = TAB; i < term.col; i += TAB)
876 term.top = 0, term.bot = term.row - 1;
877 term.mode = MODE_WRAP;
878 tclearregion(0, 0, term.col-1, term.row-1);
882 tnew(int col, int row) {
883 /* set screen size */
884 term.row = row, term.col = col;
885 term.line = malloc(term.row * sizeof(Line));
886 term.alt = malloc(term.row * sizeof(Line));
887 term.dirty = malloc(term.row * sizeof(*term.dirty));
888 term.tabs = malloc(term.col * sizeof(*term.tabs));
890 for(row = 0; row < term.row; row++) {
891 term.line[row] = malloc(term.col * sizeof(Glyph));
892 term.alt [row] = malloc(term.col * sizeof(Glyph));
895 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
902 Line* tmp = term.line;
903 term.line = term.alt;
905 term.mode ^= MODE_ALTSCREEN;
910 tscrolldown(int orig, int n) {
914 LIMIT(n, 0, term.bot-orig+1);
916 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
918 for(i = term.bot; i >= orig+n; i--) {
920 term.line[i] = term.line[i-n];
921 term.line[i-n] = temp;
931 tscrollup(int orig, int n) {
934 LIMIT(n, 0, term.bot-orig+1);
936 tclearregion(0, orig, term.col-1, orig+n-1);
938 for(i = orig; i <= term.bot-n; i++) {
940 term.line[i] = term.line[i+n];
941 term.line[i+n] = temp;
951 selscroll(int orig, int n) {
955 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
956 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
960 if(sel.by < term.top) {
964 if(sel.ey > term.bot) {
968 sel.b.y = sel.by, sel.b.x = sel.bx;
969 sel.e.y = sel.ey, sel.e.x = sel.ex;
974 tnewline(int first_col) {
977 tscrollup(term.top, 1);
980 tmoveto(first_col ? 0 : term.c.x, y);
986 char *p = csiescseq.buf;
990 csiescseq.priv = 1, p++;
992 while(p < csiescseq.buf+csiescseq.len) {
994 csiescseq.arg[csiescseq.narg] *= 10;
995 csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
997 if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ)
998 csiescseq.narg++, p++;
1000 csiescseq.mode = *p;
1008 tmoveto(int x, int y) {
1009 LIMIT(x, 0, term.col-1);
1010 LIMIT(y, 0, term.row-1);
1011 term.c.state &= ~CURSOR_WRAPNEXT;
1018 term.dirty[term.c.y] = 1;
1019 term.line[term.c.y][term.c.x] = term.c.attr;
1020 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
1021 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
1025 tclearregion(int x1, int y1, int x2, int y2) {
1029 temp = x1, x1 = x2, x2 = temp;
1031 temp = y1, y1 = y2, y2 = temp;
1033 LIMIT(x1, 0, term.col-1);
1034 LIMIT(x2, 0, term.col-1);
1035 LIMIT(y1, 0, term.row-1);
1036 LIMIT(y2, 0, term.row-1);
1038 for(y = y1; y <= y2; y++) {
1040 for(x = x1; x <= x2; x++)
1041 term.line[y][x].state = 0;
1046 tdeletechar(int n) {
1047 int src = term.c.x + n;
1049 int size = term.col - src;
1051 term.dirty[term.c.y] = 1;
1053 if(src >= term.col) {
1054 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1057 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
1058 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
1062 tinsertblank(int n) {
1065 int size = term.col - dst;
1067 term.dirty[term.c.y] = 1;
1069 if(dst >= term.col) {
1070 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1073 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
1074 tclearregion(src, term.c.y, dst - 1, term.c.y);
1078 tinsertblankline(int n) {
1079 if(term.c.y < term.top || term.c.y > term.bot)
1082 tscrolldown(term.c.y, n);
1086 tdeleteline(int n) {
1087 if(term.c.y < term.top || term.c.y > term.bot)
1090 tscrollup(term.c.y, n);
1094 tsetattr(int *attr, int l) {
1097 for(i = 0; i < l; i++) {
1100 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
1101 term.c.attr.fg = DefaultFG;
1102 term.c.attr.bg = DefaultBG;
1105 term.c.attr.mode |= ATTR_BOLD;
1108 term.c.attr.mode |= ATTR_UNDERLINE;
1111 term.c.attr.mode |= ATTR_REVERSE;
1114 term.c.attr.mode &= ~ATTR_BOLD;
1117 term.c.attr.mode &= ~ATTR_UNDERLINE;
1120 term.c.attr.mode &= ~ATTR_REVERSE;
1123 if(i + 2 < l && attr[i + 1] == 5) {
1125 if(BETWEEN(attr[i], 0, 255))
1126 term.c.attr.fg = attr[i];
1128 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
1131 fprintf(stderr, "erresc(38): gfx attr %d unknown\n", attr[i]);
1134 term.c.attr.fg = DefaultFG;
1137 if(i + 2 < l && attr[i + 1] == 5) {
1139 if(BETWEEN(attr[i], 0, 255))
1140 term.c.attr.bg = attr[i];
1142 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
1145 fprintf(stderr, "erresc(48): gfx attr %d unknown\n", attr[i]);
1148 term.c.attr.bg = DefaultBG;
1151 if(BETWEEN(attr[i], 30, 37))
1152 term.c.attr.fg = attr[i] - 30;
1153 else if(BETWEEN(attr[i], 40, 47))
1154 term.c.attr.bg = attr[i] - 40;
1155 else if(BETWEEN(attr[i], 90, 97))
1156 term.c.attr.fg = attr[i] - 90 + 8;
1157 else if(BETWEEN(attr[i], 100, 107))
1158 term.c.attr.fg = attr[i] - 100 + 8;
1160 fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump();
1167 tsetscroll(int t, int b) {
1170 LIMIT(t, 0, term.row-1);
1171 LIMIT(b, 0, term.row-1);
1181 #define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
1184 tsetmode(bool priv, bool set, int *args, int narg) {
1187 for (lim = args + narg; args < lim; ++args) {
1191 MODBIT(term.mode, set, MODE_APPKEYPAD);
1193 case 5: /* DECSCNM -- Reverve video */
1195 MODBIT(term.mode,set, MODE_REVERSE);
1196 if (mode != term.mode)
1200 MODBIT(term.mode, set, MODE_WRAP);
1203 MODBIT(term.mode, set, MODE_CRLF);
1205 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1208 MODBIT(term.c.state, !set, CURSOR_HIDE);
1210 case 1000: /* 1000,1002: enable xterm mouse report */
1211 MODBIT(term.mode, set, MODE_MOUSEBTN);
1214 MODBIT(term.mode, set, MODE_MOUSEMOTION);
1216 case 1049: /* = 1047 and 1048 */
1219 if(IS_SET(MODE_ALTSCREEN))
1220 tclearregion(0, 0, term.col-1, term.row-1);
1221 if ((set && !IS_SET(MODE_ALTSCREEN)) ||
1222 (!set && IS_SET(MODE_ALTSCREEN))) {
1229 tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
1233 "erresc: unknown private set/reset mode %d\n",
1240 MODBIT(term.mode, set, MODE_INSERT);
1244 "erresc: unknown set/reset mode %d\n",
1256 switch(csiescseq.mode) {
1259 fprintf(stderr, "erresc: unknown csi ");
1263 case '@': /* ICH -- Insert <n> blank char */
1264 DEFAULT(csiescseq.arg[0], 1);
1265 tinsertblank(csiescseq.arg[0]);
1267 case 'A': /* CUU -- Cursor <n> Up */
1269 DEFAULT(csiescseq.arg[0], 1);
1270 tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
1272 case 'B': /* CUD -- Cursor <n> Down */
1273 DEFAULT(csiescseq.arg[0], 1);
1274 tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
1276 case 'C': /* CUF -- Cursor <n> Forward */
1278 DEFAULT(csiescseq.arg[0], 1);
1279 tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
1281 case 'D': /* CUB -- Cursor <n> Backward */
1282 DEFAULT(csiescseq.arg[0], 1);
1283 tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
1285 case 'E': /* CNL -- Cursor <n> Down and first col */
1286 DEFAULT(csiescseq.arg[0], 1);
1287 tmoveto(0, term.c.y+csiescseq.arg[0]);
1289 case 'F': /* CPL -- Cursor <n> Up and first col */
1290 DEFAULT(csiescseq.arg[0], 1);
1291 tmoveto(0, term.c.y-csiescseq.arg[0]);
1293 case 'g': /* TBC -- Tabulation clear */
1294 switch (csiescseq.arg[0]) {
1295 case 0: /* clear current tab stop */
1296 term.tabs[term.c.x] = 0;
1298 case 3: /* clear all the tabs */
1299 memset(term.tabs, 0, term.col * sizeof(*term.tabs));
1305 case 'G': /* CHA -- Move to <col> */
1306 case '`': /* XXX: HPA -- same? */
1307 DEFAULT(csiescseq.arg[0], 1);
1308 tmoveto(csiescseq.arg[0]-1, term.c.y);
1310 case 'H': /* CUP -- Move to <row> <col> */
1311 case 'f': /* XXX: HVP -- same? */
1312 DEFAULT(csiescseq.arg[0], 1);
1313 DEFAULT(csiescseq.arg[1], 1);
1314 tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
1316 case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
1317 DEFAULT(csiescseq.arg[0], 1);
1318 while (csiescseq.arg[0]--)
1321 case 'J': /* ED -- Clear screen */
1323 switch(csiescseq.arg[0]) {
1325 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1326 if(term.c.y < term.row-1)
1327 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1331 tclearregion(0, 0, term.col-1, term.c.y-1);
1332 tclearregion(0, term.c.y, term.c.x, term.c.y);
1335 tclearregion(0, 0, term.col-1, term.row-1);
1341 case 'K': /* EL -- Clear line */
1342 switch(csiescseq.arg[0]) {
1344 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1347 tclearregion(0, term.c.y, term.c.x, term.c.y);
1350 tclearregion(0, term.c.y, term.col-1, term.c.y);
1354 case 'S': /* SU -- Scroll <n> line up */
1355 DEFAULT(csiescseq.arg[0], 1);
1356 tscrollup(term.top, csiescseq.arg[0]);
1358 case 'T': /* SD -- Scroll <n> line down */
1359 DEFAULT(csiescseq.arg[0], 1);
1360 tscrolldown(term.top, csiescseq.arg[0]);
1362 case 'L': /* IL -- Insert <n> blank lines */
1363 DEFAULT(csiescseq.arg[0], 1);
1364 tinsertblankline(csiescseq.arg[0]);
1366 case 'l': /* RM -- Reset Mode */
1367 tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
1369 case 'M': /* DL -- Delete <n> lines */
1370 DEFAULT(csiescseq.arg[0], 1);
1371 tdeleteline(csiescseq.arg[0]);
1373 case 'X': /* ECH -- Erase <n> char */
1374 DEFAULT(csiescseq.arg[0], 1);
1375 tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
1377 case 'P': /* DCH -- Delete <n> char */
1378 DEFAULT(csiescseq.arg[0], 1);
1379 tdeletechar(csiescseq.arg[0]);
1381 case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
1382 DEFAULT(csiescseq.arg[0], 1);
1383 while (csiescseq.arg[0]--)
1386 case 'd': /* VPA -- Move to <row> */
1387 DEFAULT(csiescseq.arg[0], 1);
1388 tmoveto(term.c.x, csiescseq.arg[0]-1);
1390 case 'h': /* SM -- Set terminal mode */
1391 tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
1393 case 'm': /* SGR -- Terminal attribute (color) */
1394 tsetattr(csiescseq.arg, csiescseq.narg);
1396 case 'r': /* DECSTBM -- Set Scrolling Region */
1400 DEFAULT(csiescseq.arg[0], 1);
1401 DEFAULT(csiescseq.arg[1], term.row);
1402 tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
1406 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1407 tcursor(CURSOR_SAVE);
1409 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1410 tcursor(CURSOR_LOAD);
1419 for(i = 0; i < csiescseq.len; i++) {
1420 uint c = csiescseq.buf[i] & 0xff;
1421 if(isprint(c)) putchar(c);
1422 else if(c == '\n') printf("(\\n)");
1423 else if(c == '\r') printf("(\\r)");
1424 else if(c == 0x1b) printf("(\\e)");
1425 else printf("(%02x)", c);
1432 memset(&csiescseq, 0, sizeof(csiescseq));
1440 * TODO: make this being useful in case of color palette change.
1446 switch(strescseq.type) {
1447 case ']': /* OSC -- Operating System Command */
1453 * TODO: Handle special chars in string, like umlauts.
1456 XStoreName(xw.dpy, xw.win, strescseq.buf+2);
1460 XStoreName(xw.dpy, xw.win, strescseq.buf+1);
1462 case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
1465 fprintf(stderr, "erresc: unknown str ");
1470 case 'P': /* DSC -- Device Control String */
1471 case '_': /* APC -- Application Program Command */
1472 case '^': /* PM -- Privacy Message */
1474 fprintf(stderr, "erresc: unknown str ");
1484 * TODO: Implement parsing like for CSI when required.
1485 * Format: ESC type cmd ';' arg0 [';' argn] ESC \
1493 printf("ESC%c", strescseq.type);
1494 for(i = 0; i < strescseq.len; i++) {
1495 uint c = strescseq.buf[i] & 0xff;
1496 if(isprint(c)) putchar(c);
1497 else if(c == '\n') printf("(\\n)");
1498 else if(c == '\r') printf("(\\r)");
1499 else if(c == 0x1b) printf("(\\e)");
1500 else printf("(%02x)", c);
1507 memset(&strescseq, 0, sizeof(strescseq));
1511 tputtab(bool forward) {
1512 unsigned x = term.c.x;
1517 for (++x; x < term.col && !term.tabs[x]; ++x)
1522 for (--x; x > 0 && !term.tabs[x]; --x)
1525 tmoveto(x, term.c.y);
1531 if(term.esc & ESC_START) {
1532 if(term.esc & ESC_CSI) {
1533 csiescseq.buf[csiescseq.len++] = ascii;
1534 if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) {
1536 csiparse(), csihandle();
1538 } else if(term.esc & ESC_STR) {
1541 term.esc = ESC_START | ESC_STR_END;
1543 case '\a': /* backwards compatibility to xterm */
1548 strescseq.buf[strescseq.len++] = ascii;
1549 if (strescseq.len+1 >= STR_BUF_SIZ) {
1554 } else if(term.esc & ESC_STR_END) {
1558 } else if(term.esc & ESC_ALTCHARSET) {
1560 case '0': /* Line drawing crap */
1561 term.c.attr.mode |= ATTR_GFX;
1563 case 'B': /* Back to regular text */
1564 term.c.attr.mode &= ~ATTR_GFX;
1567 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1573 term.esc |= ESC_CSI;
1575 case 'P': /* DCS -- Device Control String */
1576 case '_': /* APC -- Application Program Command */
1577 case '^': /* PM -- Privacy Message */
1578 case ']': /* OSC -- Operating System Command */
1580 strescseq.type = ascii;
1581 term.esc |= ESC_STR;
1584 term.esc |= ESC_ALTCHARSET;
1586 case 'D': /* IND -- Linefeed */
1587 if(term.c.y == term.bot)
1588 tscrollup(term.top, 1);
1590 tmoveto(term.c.x, term.c.y+1);
1593 case 'E': /* NEL -- Next line */
1594 tnewline(1); /* always go to first col */
1597 case 'H': /* HTS -- Horizontal tab stop */
1598 term.tabs[term.c.x] = 1;
1601 case 'M': /* RI -- Reverse index */
1602 if(term.c.y == term.top)
1603 tscrolldown(term.top, 1);
1605 tmoveto(term.c.x, term.c.y-1);
1608 case 'c': /* RIS -- Reset to inital state */
1612 case '=': /* DECPAM -- Application keypad */
1613 term.mode |= MODE_APPKEYPAD;
1616 case '>': /* DECPNM -- Normal keypad */
1617 term.mode &= ~MODE_APPKEYPAD;
1620 case '7': /* DECSC -- Save Cursor */
1621 tcursor(CURSOR_SAVE);
1624 case '8': /* DECRC -- Restore Cursor */
1625 tcursor(CURSOR_LOAD);
1628 case '\\': /* ST -- Stop */
1632 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1633 (uchar) ascii, isprint(ascii)?ascii:'.');
1638 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
1645 tmoveto(term.c.x-1, term.c.y);
1648 tmoveto(0, term.c.y);
1653 /* go to first col if the mode is set */
1654 tnewline(IS_SET(MODE_CRLF));
1657 if(!(xw.state & WIN_FOCUSED))
1662 term.esc = ESC_START;
1665 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1666 tnewline(1); /* always go to first col */
1668 if(term.c.x+1 < term.col)
1669 tmoveto(term.c.x+1, term.c.y);
1671 term.c.state |= CURSOR_WRAPNEXT;
1677 tresize(int col, int row) {
1679 int minrow = MIN(row, term.row);
1680 int mincol = MIN(col, term.col);
1681 int slide = term.c.y - row + 1;
1683 if(col < 1 || row < 1)
1686 /* free unneeded rows */
1689 /* slide screen to keep cursor where we expect it -
1690 * tscrollup would work here, but we can optimize to
1691 * memmove because we're freeing the earlier lines */
1692 for(/* i = 0 */; i < slide; i++) {
1696 memmove(term.line, term.line + slide, row * sizeof(Line));
1697 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1699 for(i += row; i < term.row; i++) {
1704 /* resize to new height */
1705 term.line = realloc(term.line, row * sizeof(Line));
1706 term.alt = realloc(term.alt, row * sizeof(Line));
1707 term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
1708 term.tabs = realloc(term.tabs, col * sizeof(*term.tabs));
1710 /* resize each row to new width, zero-pad if needed */
1711 for(i = 0; i < minrow; i++) {
1713 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1714 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1715 for(x = mincol; x < col; x++) {
1716 term.line[i][x].state = 0;
1717 term.alt[i][x].state = 0;
1721 /* allocate any new rows */
1722 for(/* i == minrow */; i < row; i++) {
1724 term.line[i] = calloc(col, sizeof(Glyph));
1725 term.alt [i] = calloc(col, sizeof(Glyph));
1727 if (col > term.col) {
1728 bool *bp = term.tabs + term.col;
1730 memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
1731 while (--bp > term.tabs && !*bp)
1733 for (bp += TAB; bp < term.tabs + col; bp += TAB)
1736 /* update terminal size */
1737 term.col = col, term.row = row;
1738 /* make use of the LIMIT in tmoveto */
1739 tmoveto(term.c.x, term.c.y);
1740 /* reset scrolling region */
1741 tsetscroll(0, row-1);
1747 xresize(int col, int row) {
1748 xw.w = MAX(1, 2*BORDER + col * xw.cw);
1749 xw.h = MAX(1, 2*BORDER + row * xw.ch);
1756 ulong white = WhitePixel(xw.dpy, xw.scr);
1758 /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
1759 for(i = 0; i < LEN(colorname); i++) {
1762 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1764 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1766 dc.col[i] = color.pixel;
1769 /* load colors [16-255] ; same colors as xterm */
1770 for(i = 16, r = 0; r < 6; r++)
1771 for(g = 0; g < 6; g++)
1772 for(b = 0; b < 6; b++) {
1773 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1774 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1775 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1776 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1778 fprintf(stderr, "Could not allocate color %d\n", i);
1780 dc.col[i] = color.pixel;
1784 for(r = 0; r < 24; r++, i++) {
1785 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1786 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1788 fprintf(stderr, "Could not allocate color %d\n", i);
1790 dc.col[i] = color.pixel;
1795 xclear(int x1, int y1, int x2, int y2) {
1796 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1797 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1798 BORDER + x1 * xw.cw, BORDER + y1 * xw.ch,
1799 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1804 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1805 XWMHints wm = {.flags = InputHint, .input = 1};
1807 .flags = PSize | PResizeInc | PBaseSize,
1810 .height_inc = xw.ch,
1812 .base_height = 2*BORDER,
1813 .base_width = 2*BORDER,
1815 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1819 xinitfont(char *fontstr) {
1821 char *def, **missing;
1825 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1828 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1829 XFreeStringList(missing);
1835 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1836 XFontStruct **xfonts;
1840 *ascent = *descent = *lbearing = *rbearing = 0;
1841 n = XFontsOfFontSet(set, &xfonts, &font_names);
1842 for(i = 0; i < n; i++) {
1843 *ascent = MAX(*ascent, (*xfonts)->ascent);
1844 *descent = MAX(*descent, (*xfonts)->descent);
1845 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1846 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1852 initfonts(char *fontstr, char *bfontstr) {
1853 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1854 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1855 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1856 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1857 &dc.font.lbearing, &dc.font.rbearing);
1858 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1859 &dc.bfont.lbearing, &dc.bfont.rbearing);
1864 XSetWindowAttributes attrs;
1868 if(!(xw.dpy = XOpenDisplay(NULL)))
1869 die("Can't open display\n");
1870 xw.scr = XDefaultScreen(xw.dpy);
1873 initfonts(FONT, BOLDFONT);
1875 /* XXX: Assuming same size for bold font */
1876 xw.cw = dc.font.rbearing - dc.font.lbearing;
1877 xw.ch = dc.font.ascent + dc.font.descent;
1880 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1883 /* window - default size */
1884 xw.h = 2*BORDER + term.row * xw.ch;
1885 xw.w = 2*BORDER + term.col * xw.cw;
1887 attrs.background_pixel = dc.col[DefaultBG];
1888 attrs.border_pixel = dc.col[DefaultBG];
1889 attrs.bit_gravity = NorthWestGravity;
1890 attrs.event_mask = FocusChangeMask | KeyPressMask
1891 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1892 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1893 | EnterWindowMask | LeaveWindowMask;
1894 attrs.colormap = xw.cmap;
1896 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1897 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1898 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1899 XDefaultVisual(xw.dpy, xw.scr),
1900 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1903 xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
1907 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1908 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1909 | XIMStatusNothing, XNClientWindow, xw.win,
1910 XNFocusWindow, xw.win, NULL);
1912 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1914 /* white cursor, black outline */
1915 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1916 XDefineCursor(xw.dpy, xw.win, cursor);
1917 XRecolorCursor(xw.dpy, cursor,
1918 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1919 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1921 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1923 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1924 XMapWindow(xw.dpy, xw.win);
1930 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1931 int fg = base.fg, bg = base.bg, temp;
1932 int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1933 XFontSet fontset = dc.font.set;
1936 /* only switch default fg/bg if term is in RV mode */
1937 if(IS_SET(MODE_REVERSE)) {
1944 if(base.mode & ATTR_REVERSE)
1945 temp = fg, fg = bg, bg = temp;
1947 if(base.mode & ATTR_BOLD) {
1949 fontset = dc.bfont.set;
1952 XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
1953 XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
1955 if(base.mode & ATTR_GFX) {
1956 for(i = 0; i < bytelen; i++) {
1957 char c = gfx[(uint)s[i] % 256];
1960 else if(s[i] > 0x5f)
1965 XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen);
1967 if(base.mode & ATTR_UNDERLINE)
1968 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1971 /* copy buffer pixmap to screen pixmap */
1974 XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
1975 XdbeSwapBuffers(xw.dpy, swpinfo, 1);
1981 static int oldx = 0;
1982 static int oldy = 0;
1984 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1986 LIMIT(oldx, 0, term.col-1);
1987 LIMIT(oldy, 0, term.row-1);
1989 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1990 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1992 /* remove the old cursor */
1993 if(term.line[oldy][oldx].state & GLYPH_SET) {
1994 sl = utf8size(term.line[oldy][oldx].c);
1995 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1997 xclear(oldx, oldy, oldx, oldy);
1999 xcopy(oldx, oldy, 1, 1);
2001 /* draw the new one */
2002 if(!(term.c.state & CURSOR_HIDE)) {
2003 if(!(xw.state & WIN_FOCUSED))
2006 if(IS_SET(MODE_REVERSE))
2007 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
2010 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
2011 oldx = term.c.x, oldy = term.c.y;
2014 xcopy(term.c.x, term.c.y, 1, 1);
2019 drawregion(0, 0, term.col, term.row);
2021 gettimeofday(&xw.lastdraw, NULL);
2025 drawregion(int x1, int y1, int x2, int y2) {
2026 int ic, ib, x, y, ox, sl;
2028 char buf[DRAW_BUF_SIZ];
2030 if(!(xw.state & WIN_VISIBLE))
2033 for(y = y1; y < y2; y++) {
2036 xclear(0, y, term.col, y);
2038 base = term.line[y][0];
2040 for(x = x1; x < x2; x++) {
2041 new = term.line[y][x];
2042 if(sel.bx != -1 && *(new.c) && selected(x, y))
2043 new.mode ^= ATTR_REVERSE;
2044 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
2045 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
2046 xdraws(buf, base, ox, y, ic, ib);
2049 if(new.state & GLYPH_SET) {
2054 sl = utf8size(new.c);
2055 memcpy(buf+ib, new.c, sl);
2061 xdraws(buf, base, ox, y, ic, ib);
2067 expose(XEvent *ev) {
2068 XExposeEvent *e = &ev->xexpose;
2069 if(xw.state & WIN_REDRAW) {
2071 xw.state &= ~WIN_REDRAW;
2077 visibility(XEvent *ev) {
2078 XVisibilityEvent *e = &ev->xvisibility;
2079 if(e->state == VisibilityFullyObscured)
2080 xw.state &= ~WIN_VISIBLE;
2081 else if(!(xw.state & WIN_VISIBLE))
2082 /* need a full redraw for next Expose, not just a buf copy */
2083 xw.state |= WIN_VISIBLE | WIN_REDRAW;
2088 xw.state &= ~WIN_VISIBLE;
2092 xseturgency(int add) {
2093 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
2094 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
2095 XSetWMHints(xw.dpy, xw.win, h);
2101 if(ev->type == FocusIn) {
2102 xw.state |= WIN_FOCUSED;
2105 xw.state &= ~WIN_FOCUSED;
2110 kmap(KeySym k, uint state) {
2113 for(i = 0; i < LEN(key); i++) {
2114 uint mask = key[i].mask;
2115 if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
2116 return (char*)key[i].s;
2122 kpress(XEvent *ev) {
2123 XKeyEvent *e = &ev->xkey;
2132 meta = e->state & Mod1Mask;
2133 shift = e->state & ShiftMask;
2134 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
2136 /* 1. custom keys from config.h */
2137 if((customkey = kmap(ksym, e->state)))
2138 ttywrite(customkey, strlen(customkey));
2139 /* 2. hardcoded (overrides X lookup) */
2146 /* XXX: shift up/down doesn't work */
2147 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
2155 if(IS_SET(MODE_CRLF))
2156 ttywrite("\r\n", 2);
2163 if(meta && len == 1)
2164 ttywrite("\033", 1);
2172 cmessage(XEvent *e) {
2174 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
2175 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
2176 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
2177 xw.state |= WIN_FOCUSED;
2179 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
2180 xw.state &= ~WIN_FOCUSED;
2190 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
2193 xw.w = e->xconfigure.width;
2194 xw.h = e->xconfigure.height;
2195 col = (xw.w - 2*BORDER) / xw.cw;
2196 row = (xw.h - 2*BORDER) / xw.ch;
2197 if(col == term.col && row == term.row)
2199 if(tresize(col, row))
2201 ttyresize(col, row);
2206 last_draw_too_old(void) {
2208 gettimeofday(&now, NULL);
2209 return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
2216 int xfd = XConnectionNumber(xw.dpy);
2217 struct timeval timeout = {0};
2218 bool stuff_to_print = 0;
2222 FD_SET(cmdfd, &rfd);
2225 timeout.tv_usec = SELECT_TIMEOUT;
2226 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
2229 die("select failed: %s\n", SERRNO);
2231 if(FD_ISSET(cmdfd, &rfd)) {
2236 if(stuff_to_print && last_draw_too_old()) {
2241 while(XPending(xw.dpy)) {
2242 XNextEvent(xw.dpy, &ev);
2243 if(XFilterEvent(&ev, xw.win))
2245 if(handler[ev.type])
2246 (handler[ev.type])(&ev);
2252 main(int argc, char *argv[]) {
2255 for(i = 1; i < argc; i++) {
2256 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
2258 if(++i < argc) opt_title = argv[i];
2261 if(++i < argc) opt_class = argv[i];
2264 if(++i < argc) opt_embed = argv[i];
2267 /* eat every remaining arguments */
2268 if(++i < argc) opt_cmd = &argv[i];
2277 setlocale(LC_CTYPE, "");