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 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
70 enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
71 enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
72 CURSOR_SAVE, CURSOR_LOAD };
73 enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
74 enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
75 enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
76 MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
77 enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
78 enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
81 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
83 typedef unsigned char uchar;
84 typedef unsigned int uint;
85 typedef unsigned long ulong;
88 char c[UTF_SIZ]; /* character code */
89 char mode; /* attribute flags */
90 int fg; /* foreground */
91 int bg; /* background */
92 char state; /* state flags */
98 Glyph attr; /* current char attributes */
104 /* CSI Escape sequence structs */
105 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
107 char buf[ESC_BUF_SIZ]; /* raw string */
108 int len; /* raw string length */
110 int arg[ESC_ARG_SIZ];
111 int narg; /* nb of args */
115 /* Internal representation of the screen */
117 int row; /* nb row */
118 int col; /* nb col */
119 Line* line; /* screen */
120 Line* alt; /* alternate screen */
121 bool* dirty; /* dirtyness of lines */
122 TCursor c; /* cursor */
123 int top; /* top scroll limit */
124 int bot; /* bottom scroll limit */
125 int mode; /* terminal mode flags */
126 int esc; /* escape state flags */
127 char title[ESC_TITLE_SIZ];
131 /* Purely graphic info */
141 int w; /* window width */
142 int h; /* window height */
143 int bufw; /* pixmap width */
144 int bufh; /* pixmap height */
145 int ch; /* char height */
146 int cw; /* char width */
147 char state; /* focus, redraw, visible */
148 struct timeval lastdraw;
157 /* Drawing Context */
170 /* TODO: use better name for vars... */
175 struct {int x, y;} b, e;
178 struct timeval tclick1;
179 struct timeval tclick2;
184 static void die(const char*, ...);
185 static void draw(void);
186 static void drawregion(int, int, int, int);
187 static void execsh(void);
188 static void sigchld(int);
189 static void run(void);
190 static bool last_draw_too_old(void);
192 static void csidump(void);
193 static void csihandle(void);
194 static void csiparse(void);
195 static void csireset(void);
197 static void tclearregion(int, int, int, int);
198 static void tcursor(int);
199 static void tdeletechar(int);
200 static void tdeleteline(int);
201 static void tinsertblank(int);
202 static void tinsertblankline(int);
203 static void tmoveto(int, int);
204 static void tnew(int, int);
205 static void tnewline(int);
206 static void tputtab(void);
207 static void tputc(char*);
208 static void treset(void);
209 static int tresize(int, int);
210 static void tscrollup(int, int);
211 static void tscrolldown(int, int);
212 static void tsetattr(int*, int);
213 static void tsetchar(char*);
214 static void tsetscroll(int, int);
215 static void tswapscreen(void);
216 static void tfulldirt(void);
218 static void ttynew(void);
219 static void ttyread(void);
220 static void ttyresize(int, int);
221 static void ttywrite(const char *, size_t);
223 static void xdraws(char *, Glyph, int, int, int, int);
224 static void xhints(void);
225 static void xclear(int, int, int, int);
226 static void xcopy(int, int, int, int);
227 static void xdrawcursor(void);
228 static void xinit(void);
229 static void xloadcols(void);
230 static void xseturgency(int);
231 static void xsetsel(char*);
232 static void xresize(int, int);
234 static void expose(XEvent *);
235 static void visibility(XEvent *);
236 static void unmap(XEvent *);
237 static char* kmap(KeySym, uint);
238 static void kpress(XEvent *);
239 static void cmessage(XEvent *);
240 static void resize(XEvent *);
241 static void focus(XEvent *);
242 static void brelease(XEvent *);
243 static void bpress(XEvent *);
244 static void bmotion(XEvent *);
245 static void selnotify(XEvent *);
246 static void selrequest(XEvent *);
248 static void selinit(void);
249 static inline bool selected(int, int);
250 static void selcopy(void);
251 static void selpaste();
252 static void selscroll(int, int);
254 static int utf8decode(char *, long *);
255 static int utf8encode(long *, char *);
256 static int utf8size(char *);
257 static int isfullutf8(char *, int);
259 static void (*handler[LASTEvent])(XEvent *) = {
261 [ClientMessage] = cmessage,
262 [ConfigureNotify] = resize,
263 [VisibilityNotify] = visibility,
264 [UnmapNotify] = unmap,
268 [MotionNotify] = bmotion,
269 [ButtonPress] = bpress,
270 [ButtonRelease] = brelease,
271 [SelectionNotify] = selnotify,
272 [SelectionRequest] = selrequest,
279 static CSIEscape escseq;
282 static Selection sel;
283 static char **opt_cmd = NULL;
284 static char *opt_title = NULL;
285 static char *opt_embed = NULL;
286 static char *opt_class = NULL;
289 utf8decode(char *s, long *u) {
295 if(~c & B7) { /* 0xxxxxxx */
298 } else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
299 *u = c&(B4|B3|B2|B1|B0);
301 } else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
302 *u = c&(B3|B2|B1|B0);
304 } else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
309 for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
311 if((c & (B7|B6)) != B7) /* 10xxxxxx */
314 *u |= c & (B5|B4|B3|B2|B1|B0);
316 if((n == 1 && *u < 0x80) ||
317 (n == 2 && *u < 0x800) ||
318 (n == 3 && *u < 0x10000) ||
319 (*u >= 0xD800 && *u <= 0xDFFF))
328 utf8encode(long *u, char *s) {
336 *sp = uc; /* 0xxxxxxx */
338 } else if(*u < 0x800) {
339 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
341 } else if(uc < 0x10000) {
342 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
344 } else if(uc <= 0x10FFFF) {
345 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
350 for(i=n,++sp; i>0; --i,++sp)
351 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
361 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
362 UTF-8 otherwise return 0 */
364 isfullutf8(char *s, int b) {
372 else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
374 else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
376 ((b == 2) && (*c2&(B7|B6)) == B7)))
378 else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
380 ((b == 2) && (*c2&(B7|B6)) == B7) ||
381 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
393 else if((c&(B7|B6|B5)) == (B7|B6))
395 else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
403 sel.tclick1.tv_sec = 0;
404 sel.tclick1.tv_usec = 0;
408 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
409 if(sel.xtarget == None)
410 sel.xtarget = XA_STRING;
414 selected(int x, int y) {
415 if(sel.ey == y && sel.by == y) {
416 int bx = MIN(sel.bx, sel.ex);
417 int ex = MAX(sel.bx, sel.ex);
418 return BETWEEN(x, bx, ex);
420 return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
421 || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
425 getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
427 *b = e->xbutton.button;
429 *x = X2COL(e->xbutton.x);
430 *y = Y2ROW(e->xbutton.y);
431 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
432 sel.b.y = MIN(sel.by, sel.ey);
433 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
434 sel.e.y = MAX(sel.by, sel.ey);
438 mousereport(XEvent *e) {
439 int x = X2COL(e->xbutton.x);
440 int y = Y2ROW(e->xbutton.y);
441 int button = e->xbutton.button;
442 int state = e->xbutton.state;
443 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
444 static int ob, ox, oy;
447 if(e->xbutton.type == MotionNotify) {
448 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
452 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
458 if(e->xbutton.type == ButtonPress) {
464 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
465 + (state & Mod4Mask ? 8 : 0)
466 + (state & ControlMask ? 16 : 0);
468 ttywrite(buf, sizeof(buf));
473 if(IS_SET(MODE_MOUSE))
475 else if(e->xbutton.button == Button1) {
477 for(int i=sel.b.y; i<=sel.e.y; i++)
480 sel.ex = sel.bx = X2COL(e->xbutton.x);
481 sel.ey = sel.by = Y2ROW(e->xbutton.y);
488 int x, y, sz, sl, ls = 0;
493 sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
494 ptr = str = malloc(sz);
495 for(y = 0; y < term.row; y++) {
496 for(x = 0; x < term.col; x++)
497 if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
498 sl = utf8size(term.line[y][x].c);
499 memcpy(ptr, term.line[y][x].c, sl);
502 if(ls && y < sel.e.y)
511 selnotify(XEvent *e) {
512 ulong nitems, ofs, rem;
519 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
520 False, AnyPropertyType, &type, &format,
521 &nitems, &rem, &data)) {
522 fprintf(stderr, "Clipboard allocation failed\n");
525 ttywrite((const char *) data, nitems * format / 8);
527 /* number of 32-bit chunks returned */
528 ofs += nitems * format / 32;
534 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
538 selrequest(XEvent *e) {
539 XSelectionRequestEvent *xsre;
543 xsre = (XSelectionRequestEvent *) e;
544 xev.type = SelectionNotify;
545 xev.requestor = xsre->requestor;
546 xev.selection = xsre->selection;
547 xev.target = xsre->target;
548 xev.time = xsre->time;
552 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
553 if(xsre->target == xa_targets) {
554 /* respond with the supported type */
555 Atom string = sel.xtarget;
556 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
557 XA_ATOM, 32, PropModeReplace,
558 (uchar *) &string, 1);
559 xev.property = xsre->property;
560 } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
561 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
562 xsre->target, 8, PropModeReplace,
563 (uchar *) sel.clip, strlen(sel.clip));
564 xev.property = xsre->property;
567 /* all done, send a notification to the listener */
568 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
569 fprintf(stderr, "Error sending SelectionNotify event\n");
574 /* register the selection for both the clipboard and the primary */
580 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
582 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
583 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
589 brelease(XEvent *e) {
590 if(IS_SET(MODE_MOUSE)) {
594 if(e->xbutton.button == Button2)
596 else if(e->xbutton.button == Button1) {
598 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
599 term.dirty[sel.ey] = 1;
600 if(sel.bx == sel.ex && sel.by == sel.ey) {
603 gettimeofday(&now, NULL);
605 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
606 /* triple click on the line */
607 sel.b.x = sel.bx = 0;
608 sel.e.x = sel.ex = term.col;
609 sel.b.y = sel.e.y = sel.ey;
611 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
612 /* double click to select word */
614 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
615 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
617 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
618 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
620 sel.b.y = sel.e.y = sel.ey;
626 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
627 gettimeofday(&sel.tclick1, NULL);
633 if(IS_SET(MODE_MOUSE)) {
638 int oldey = sel.ey, oldex = sel.ex;
639 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
641 if(oldey != sel.ey || oldex != sel.ex) {
642 int starty = MIN(oldey, sel.ey);
643 int endy = MAX(oldey, sel.ey);
644 for(int i = starty; i <= endy; i++)
652 die(const char *errstr, ...) {
655 va_start(ap, errstr);
656 vfprintf(stderr, errstr, ap);
664 char *envshell = getenv("SHELL");
666 DEFAULT(envshell, "sh");
667 putenv("TERM="TNAME);
668 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
669 execvp(args[0], args);
676 if(waitpid(pid, &stat, 0) < 0)
677 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
679 exit(WEXITSTATUS(stat));
688 /* seems to work fine on linux, openbsd and freebsd */
689 struct winsize w = {term.row, term.col, 0, 0};
690 if(openpty(&m, &s, NULL, NULL, &w) < 0)
691 die("openpty failed: %s\n", SERRNO);
693 switch(pid = fork()) {
695 die("fork failed\n");
698 setsid(); /* create a new process group */
699 dup2(s, STDIN_FILENO);
700 dup2(s, STDOUT_FILENO);
701 dup2(s, STDERR_FILENO);
702 if(ioctl(s, TIOCSCTTY, NULL) < 0)
703 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
711 signal(SIGCHLD, sigchld);
718 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
720 fprintf(stderr, "\n");
725 static char buf[BUFSIZ];
726 static int buflen = 0;
729 int charsize; /* size of utf8 char in bytes */
733 /* append read bytes to unprocessed bytes */
734 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
735 die("Couldn't read from shell: %s\n", SERRNO);
737 /* process every complete utf8 char */
740 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
741 charsize = utf8decode(ptr, &utf8c);
742 utf8encode(&utf8c, s);
748 /* keep any uncomplete utf8 char for the next call */
749 memmove(buf, ptr, buflen);
753 ttywrite(const char *s, size_t n) {
754 if(write(cmdfd, s, n) == -1)
755 die("write error on tty: %s\n", SERRNO);
759 ttyresize(int x, int y) {
764 w.ws_xpixel = w.ws_ypixel = 0;
765 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
766 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
773 for(i = 0; i < term.row; i++)
781 if(mode == CURSOR_SAVE)
783 else if(mode == CURSOR_LOAD)
784 term.c = c, tmoveto(c.x, c.y);
793 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
795 term.top = 0, term.bot = term.row - 1;
796 term.mode = MODE_WRAP;
797 tclearregion(0, 0, term.col-1, term.row-1);
801 tnew(int col, int row) {
802 /* set screen size */
803 term.row = row, term.col = col;
804 term.line = malloc(term.row * sizeof(Line));
805 term.alt = malloc(term.row * sizeof(Line));
806 term.dirty = malloc(term.row * sizeof(*term.dirty));
808 for(row = 0; row < term.row; row++) {
809 term.line[row] = malloc(term.col * sizeof(Glyph));
810 term.alt [row] = malloc(term.col * sizeof(Glyph));
819 Line* tmp = term.line;
820 term.line = term.alt;
822 term.mode ^= MODE_ALTSCREEN;
827 tscrolldown(int orig, int n) {
831 LIMIT(n, 0, term.bot-orig+1);
833 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
835 for(i = term.bot; i >= orig+n; i--) {
837 term.line[i] = term.line[i-n];
838 term.line[i-n] = temp;
848 tscrollup(int orig, int n) {
851 LIMIT(n, 0, term.bot-orig+1);
853 tclearregion(0, orig, term.col-1, orig+n-1);
855 for(i = orig; i <= term.bot-n; i++) {
857 term.line[i] = term.line[i+n];
858 term.line[i+n] = temp;
868 selscroll(int orig, int n) {
872 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
873 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
877 if(sel.by < term.top) {
881 if(sel.ey > term.bot) {
885 sel.b.y = sel.by, sel.b.x = sel.bx;
886 sel.e.y = sel.ey, sel.e.x = sel.ex;
891 tnewline(int first_col) {
894 tscrollup(term.top, 1);
897 tmoveto(first_col ? 0 : term.c.x, y);
903 char *p = escseq.buf;
907 escseq.priv = 1, p++;
909 while(p < escseq.buf+escseq.len) {
911 escseq.arg[escseq.narg] *= 10;
912 escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
914 if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
925 tmoveto(int x, int y) {
926 LIMIT(x, 0, term.col-1);
927 LIMIT(y, 0, term.row-1);
928 term.c.state &= ~CURSOR_WRAPNEXT;
935 term.dirty[term.c.y] = 1;
936 term.line[term.c.y][term.c.x] = term.c.attr;
937 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
938 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
942 tclearregion(int x1, int y1, int x2, int y2) {
946 temp = x1, x1 = x2, x2 = temp;
948 temp = y1, y1 = y2, y2 = temp;
950 LIMIT(x1, 0, term.col-1);
951 LIMIT(x2, 0, term.col-1);
952 LIMIT(y1, 0, term.row-1);
953 LIMIT(y2, 0, term.row-1);
955 for(y = y1; y <= y2; y++) {
957 for(x = x1; x <= x2; x++)
958 term.line[y][x].state = 0;
964 int src = term.c.x + n;
966 int size = term.col - src;
968 term.dirty[term.c.y] = 1;
970 if(src >= term.col) {
971 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
974 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
975 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
979 tinsertblank(int n) {
982 int size = term.col - dst;
984 term.dirty[term.c.y] = 1;
986 if(dst >= term.col) {
987 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
990 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
991 tclearregion(src, term.c.y, dst - 1, term.c.y);
995 tinsertblankline(int n) {
996 if(term.c.y < term.top || term.c.y > term.bot)
999 tscrolldown(term.c.y, n);
1003 tdeleteline(int n) {
1004 if(term.c.y < term.top || term.c.y > term.bot)
1007 tscrollup(term.c.y, n);
1011 tsetattr(int *attr, int l) {
1014 for(i = 0; i < l; i++) {
1017 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
1018 term.c.attr.fg = DefaultFG;
1019 term.c.attr.bg = DefaultBG;
1022 term.c.attr.mode |= ATTR_BOLD;
1025 term.c.attr.mode |= ATTR_UNDERLINE;
1028 term.c.attr.mode |= ATTR_REVERSE;
1031 term.c.attr.mode &= ~ATTR_BOLD;
1034 term.c.attr.mode &= ~ATTR_UNDERLINE;
1037 term.c.attr.mode &= ~ATTR_REVERSE;
1040 if(i + 2 < l && attr[i + 1] == 5) {
1042 if(BETWEEN(attr[i], 0, 255))
1043 term.c.attr.fg = attr[i];
1045 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
1048 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1051 term.c.attr.fg = DefaultFG;
1054 if(i + 2 < l && attr[i + 1] == 5) {
1056 if(BETWEEN(attr[i], 0, 255))
1057 term.c.attr.bg = attr[i];
1059 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
1062 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1065 term.c.attr.bg = DefaultBG;
1068 if(BETWEEN(attr[i], 30, 37))
1069 term.c.attr.fg = attr[i] - 30;
1070 else if(BETWEEN(attr[i], 40, 47))
1071 term.c.attr.bg = attr[i] - 40;
1072 else if(BETWEEN(attr[i], 90, 97))
1073 term.c.attr.fg = attr[i] - 90 + 8;
1074 else if(BETWEEN(attr[i], 100, 107))
1075 term.c.attr.fg = attr[i] - 100 + 8;
1077 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
1085 tsetscroll(int t, int b) {
1088 LIMIT(t, 0, term.row-1);
1089 LIMIT(b, 0, term.row-1);
1101 switch(escseq.mode) {
1104 fprintf(stderr, "erresc: unknown csi ");
1108 case '@': /* ICH -- Insert <n> blank char */
1109 DEFAULT(escseq.arg[0], 1);
1110 tinsertblank(escseq.arg[0]);
1112 case 'A': /* CUU -- Cursor <n> Up */
1114 DEFAULT(escseq.arg[0], 1);
1115 tmoveto(term.c.x, term.c.y-escseq.arg[0]);
1117 case 'B': /* CUD -- Cursor <n> Down */
1118 DEFAULT(escseq.arg[0], 1);
1119 tmoveto(term.c.x, term.c.y+escseq.arg[0]);
1121 case 'C': /* CUF -- Cursor <n> Forward */
1123 DEFAULT(escseq.arg[0], 1);
1124 tmoveto(term.c.x+escseq.arg[0], term.c.y);
1126 case 'D': /* CUB -- Cursor <n> Backward */
1127 DEFAULT(escseq.arg[0], 1);
1128 tmoveto(term.c.x-escseq.arg[0], term.c.y);
1130 case 'E': /* CNL -- Cursor <n> Down and first col */
1131 DEFAULT(escseq.arg[0], 1);
1132 tmoveto(0, term.c.y+escseq.arg[0]);
1134 case 'F': /* CPL -- Cursor <n> Up and first col */
1135 DEFAULT(escseq.arg[0], 1);
1136 tmoveto(0, term.c.y-escseq.arg[0]);
1138 case 'G': /* CHA -- Move to <col> */
1139 case '`': /* XXX: HPA -- same? */
1140 DEFAULT(escseq.arg[0], 1);
1141 tmoveto(escseq.arg[0]-1, term.c.y);
1143 case 'H': /* CUP -- Move to <row> <col> */
1144 case 'f': /* XXX: HVP -- same? */
1145 DEFAULT(escseq.arg[0], 1);
1146 DEFAULT(escseq.arg[1], 1);
1147 tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
1149 /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
1150 case 'J': /* ED -- Clear screen */
1152 switch(escseq.arg[0]) {
1154 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1155 if(term.c.y < term.row-1)
1156 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1160 tclearregion(0, 0, term.col-1, term.c.y-1);
1161 tclearregion(0, term.c.y, term.c.x, term.c.y);
1164 tclearregion(0, 0, term.col-1, term.row-1);
1170 case 'K': /* EL -- Clear line */
1171 switch(escseq.arg[0]) {
1173 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1176 tclearregion(0, term.c.y, term.c.x, term.c.y);
1179 tclearregion(0, term.c.y, term.col-1, term.c.y);
1183 case 'S': /* SU -- Scroll <n> line up */
1184 DEFAULT(escseq.arg[0], 1);
1185 tscrollup(term.top, escseq.arg[0]);
1187 case 'T': /* SD -- Scroll <n> line down */
1188 DEFAULT(escseq.arg[0], 1);
1189 tscrolldown(term.top, escseq.arg[0]);
1191 case 'L': /* IL -- Insert <n> blank lines */
1192 DEFAULT(escseq.arg[0], 1);
1193 tinsertblankline(escseq.arg[0]);
1195 case 'l': /* RM -- Reset Mode */
1197 switch(escseq.arg[0]) {
1199 term.mode &= ~MODE_APPKEYPAD;
1201 case 5: /* DECSCNM -- Remove reverse video */
1202 if(IS_SET(MODE_REVERSE)) {
1203 term.mode &= ~MODE_REVERSE;
1208 term.mode &= ~MODE_WRAP;
1210 case 12: /* att610 -- Stop blinking cursor (IGNORED) */
1213 term.mode &= ~MODE_CRLF;
1216 term.c.state |= CURSOR_HIDE;
1218 case 1000: /* disable X11 xterm mouse reporting */
1219 term.mode &= ~MODE_MOUSEBTN;
1222 term.mode &= ~MODE_MOUSEMOTION;
1224 case 1049: /* = 1047 and 1048 */
1227 if(IS_SET(MODE_ALTSCREEN)) {
1228 tclearregion(0, 0, term.col-1, term.row-1);
1231 if(escseq.arg[0] != 1049)
1234 tcursor(CURSOR_LOAD);
1240 switch(escseq.arg[0]) {
1242 term.mode &= ~MODE_INSERT;
1249 case 'M': /* DL -- Delete <n> lines */
1250 DEFAULT(escseq.arg[0], 1);
1251 tdeleteline(escseq.arg[0]);
1253 case 'X': /* ECH -- Erase <n> char */
1254 DEFAULT(escseq.arg[0], 1);
1255 tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
1257 case 'P': /* DCH -- Delete <n> char */
1258 DEFAULT(escseq.arg[0], 1);
1259 tdeletechar(escseq.arg[0]);
1261 /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
1262 case 'd': /* VPA -- Move to <row> */
1263 DEFAULT(escseq.arg[0], 1);
1264 tmoveto(term.c.x, escseq.arg[0]-1);
1266 case 'h': /* SM -- Set terminal mode */
1268 switch(escseq.arg[0]) {
1270 term.mode |= MODE_APPKEYPAD;
1272 case 5: /* DECSCNM -- Reverve video */
1273 if(!IS_SET(MODE_REVERSE)) {
1274 term.mode |= MODE_REVERSE;
1279 term.mode |= MODE_WRAP;
1282 term.mode |= MODE_CRLF;
1284 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1285 /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
1286 if(escseq.narg > 1 && escseq.arg[1] != 25)
1289 term.c.state &= ~CURSOR_HIDE;
1291 case 1000: /* 1000,1002: enable xterm mouse report */
1292 term.mode |= MODE_MOUSEBTN;
1295 term.mode |= MODE_MOUSEMOTION;
1297 case 1049: /* = 1047 and 1048 */
1300 if(IS_SET(MODE_ALTSCREEN))
1301 tclearregion(0, 0, term.col-1, term.row-1);
1304 if(escseq.arg[0] != 1049)
1307 tcursor(CURSOR_SAVE);
1309 default: goto unknown;
1312 switch(escseq.arg[0]) {
1314 term.mode |= MODE_INSERT;
1316 default: goto unknown;
1320 case 'm': /* SGR -- Terminal attribute (color) */
1321 tsetattr(escseq.arg, escseq.narg);
1323 case 'r': /* DECSTBM -- Set Scrolling Region */
1327 DEFAULT(escseq.arg[0], 1);
1328 DEFAULT(escseq.arg[1], term.row);
1329 tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
1333 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1334 tcursor(CURSOR_SAVE);
1336 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1337 tcursor(CURSOR_LOAD);
1345 printf("ESC [ %s", escseq.priv ? "? " : "");
1347 for(i = 0; i < escseq.narg; i++)
1348 printf("%d ", escseq.arg[i]);
1350 putchar(escseq.mode);
1356 memset(&escseq, 0, sizeof(escseq));
1361 int space = TAB - term.c.x % TAB;
1362 tmoveto(term.c.x + space, term.c.y);
1368 if(term.esc & ESC_START) {
1369 if(term.esc & ESC_CSI) {
1370 escseq.buf[escseq.len++] = ascii;
1371 if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
1373 csiparse(), csihandle();
1375 /* TODO: handle other OSC */
1376 } else if(term.esc & ESC_OSC) {
1379 term.esc = ESC_START | ESC_TITLE;
1381 } else if(term.esc & ESC_TITLE) {
1382 if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
1384 term.title[term.titlelen] = '\0';
1385 XStoreName(xw.dpy, xw.win, term.title);
1387 term.title[term.titlelen++] = ascii;
1389 } else if(term.esc & ESC_ALTCHARSET) {
1391 case '0': /* Line drawing crap */
1392 term.c.attr.mode |= ATTR_GFX;
1394 case 'B': /* Back to regular text */
1395 term.c.attr.mode &= ~ATTR_GFX;
1398 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1404 term.esc |= ESC_CSI;
1407 term.esc |= ESC_OSC;
1410 term.esc |= ESC_ALTCHARSET;
1412 case 'D': /* IND -- Linefeed */
1413 if(term.c.y == term.bot)
1414 tscrollup(term.top, 1);
1416 tmoveto(term.c.x, term.c.y+1);
1419 case 'E': /* NEL -- Next line */
1420 tnewline(1); /* always go to first col */
1423 case 'M': /* RI -- Reverse index */
1424 if(term.c.y == term.top)
1425 tscrolldown(term.top, 1);
1427 tmoveto(term.c.x, term.c.y-1);
1430 case 'c': /* RIS -- Reset to inital state */
1434 case '=': /* DECPAM -- Application keypad */
1435 term.mode |= MODE_APPKEYPAD;
1438 case '>': /* DECPNM -- Normal keypad */
1439 term.mode &= ~MODE_APPKEYPAD;
1442 case '7': /* DECSC -- Save Cursor */
1443 tcursor(CURSOR_SAVE);
1446 case '8': /* DECRC -- Restore Cursor */
1447 tcursor(CURSOR_LOAD);
1451 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1452 (uchar) ascii, isprint(ascii)?ascii:'.');
1457 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
1464 tmoveto(term.c.x-1, term.c.y);
1467 tmoveto(0, term.c.y);
1472 /* go to first col if the mode is set */
1473 tnewline(IS_SET(MODE_CRLF));
1476 if(!(xw.state & WIN_FOCUSED))
1481 term.esc = ESC_START;
1484 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1485 tnewline(1); /* always go to first col */
1487 if(term.c.x+1 < term.col)
1488 tmoveto(term.c.x+1, term.c.y);
1490 term.c.state |= CURSOR_WRAPNEXT;
1496 tresize(int col, int row) {
1498 int minrow = MIN(row, term.row);
1499 int mincol = MIN(col, term.col);
1500 int slide = term.c.y - row + 1;
1502 if(col < 1 || row < 1)
1505 /* free unneeded rows */
1508 /* slide screen to keep cursor where we expect it -
1509 * tscrollup would work here, but we can optimize to
1510 * memmove because we're freeing the earlier lines */
1511 for(/* i = 0 */; i < slide; i++) {
1515 memmove(term.line, term.line + slide, row * sizeof(Line));
1516 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1518 for(i += row; i < term.row; i++) {
1523 /* resize to new height */
1524 term.line = realloc(term.line, row * sizeof(Line));
1525 term.alt = realloc(term.alt, row * sizeof(Line));
1526 term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
1528 /* resize each row to new width, zero-pad if needed */
1529 for(i = 0; i < minrow; i++) {
1531 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1532 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1533 for(x = mincol; x < col; x++) {
1534 term.line[i][x].state = 0;
1535 term.alt[i][x].state = 0;
1539 /* allocate any new rows */
1540 for(/* i == minrow */; i < row; i++) {
1542 term.line[i] = calloc(col, sizeof(Glyph));
1543 term.alt [i] = calloc(col, sizeof(Glyph));
1546 /* update terminal size */
1547 term.col = col, term.row = row;
1548 /* make use of the LIMIT in tmoveto */
1549 tmoveto(term.c.x, term.c.y);
1550 /* reset scrolling region */
1551 tsetscroll(0, row-1);
1557 xresize(int col, int row) {
1563 xw.bufw = MAX(1, col * xw.cw);
1564 xw.bufh = MAX(1, row * xw.ch);
1565 newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1566 XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
1567 XFreePixmap(xw.dpy, xw.buf);
1568 XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
1570 XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
1571 xw.bufw-oldw, MIN(xw.bufh, oldh));
1572 else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
1573 XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
1574 xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
1577 XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
1578 xw.bufw, xw.bufh-oldh);
1579 else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
1580 XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
1581 xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
1590 ulong white = WhitePixel(xw.dpy, xw.scr);
1592 for(i = 0; i < LEN(colorname); i++) {
1593 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1595 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1597 dc.col[i] = color.pixel;
1600 /* same colors as xterm */
1601 for(r = 0; r < 6; r++)
1602 for(g = 0; g < 6; g++)
1603 for(b = 0; b < 6; b++) {
1604 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1605 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1606 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1607 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1609 fprintf(stderr, "Could not allocate color %d\n", i);
1611 dc.col[i] = color.pixel;
1615 for(r = 0; r < 24; r++, i++) {
1616 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1617 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1619 fprintf(stderr, "Could not allocate color %d\n", i);
1621 dc.col[i] = color.pixel;
1626 xclear(int x1, int y1, int x2, int y2) {
1627 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1628 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1629 x1 * xw.cw, y1 * xw.ch,
1630 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1635 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1636 XWMHints wm = {.flags = InputHint, .input = 1};
1638 .flags = PSize | PResizeInc | PBaseSize,
1641 .height_inc = xw.ch,
1643 .base_height = 2*BORDER,
1644 .base_width = 2*BORDER,
1646 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1650 xinitfont(char *fontstr) {
1652 char *def, **missing;
1656 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1659 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1660 XFreeStringList(missing);
1666 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1667 XFontStruct **xfonts;
1671 *ascent = *descent = *lbearing = *rbearing = 0;
1672 n = XFontsOfFontSet(set, &xfonts, &font_names);
1673 for(i = 0; i < n; i++) {
1674 *ascent = MAX(*ascent, (*xfonts)->ascent);
1675 *descent = MAX(*descent, (*xfonts)->descent);
1676 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1677 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1683 initfonts(char *fontstr, char *bfontstr) {
1684 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1685 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1686 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1687 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1688 &dc.font.lbearing, &dc.font.rbearing);
1689 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1690 &dc.bfont.lbearing, &dc.bfont.rbearing);
1695 XSetWindowAttributes attrs;
1699 if(!(xw.dpy = XOpenDisplay(NULL)))
1700 die("Can't open display\n");
1701 xw.scr = XDefaultScreen(xw.dpy);
1704 initfonts(FONT, BOLDFONT);
1706 /* XXX: Assuming same size for bold font */
1707 xw.cw = dc.font.rbearing - dc.font.lbearing;
1708 xw.ch = dc.font.ascent + dc.font.descent;
1711 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1714 /* window - default size */
1715 xw.bufh = term.row * xw.ch;
1716 xw.bufw = term.col * xw.cw;
1717 xw.h = xw.bufh + 2*BORDER;
1718 xw.w = xw.bufw + 2*BORDER;
1720 attrs.background_pixel = dc.col[DefaultBG];
1721 attrs.border_pixel = dc.col[DefaultBG];
1722 attrs.bit_gravity = NorthWestGravity;
1723 attrs.event_mask = FocusChangeMask | KeyPressMask
1724 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1725 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1726 | EnterWindowMask | LeaveWindowMask;
1727 attrs.colormap = xw.cmap;
1729 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1730 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1731 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1732 XDefaultVisual(xw.dpy, xw.scr),
1733 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1736 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1740 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1741 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1742 | XIMStatusNothing, XNClientWindow, xw.win,
1743 XNFocusWindow, xw.win, NULL);
1745 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1747 /* white cursor, black outline */
1748 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1749 XDefineCursor(xw.dpy, xw.win, cursor);
1750 XRecolorCursor(xw.dpy, cursor,
1751 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1752 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1754 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1756 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1757 XMapWindow(xw.dpy, xw.win);
1763 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1764 ulong xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
1765 int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1768 /* only switch default fg/bg if term is in RV mode */
1769 if(IS_SET(MODE_REVERSE)) {
1770 if(base.fg == DefaultFG)
1771 xfg = dc.col[DefaultBG];
1772 if(base.bg == DefaultBG)
1773 xbg = dc.col[DefaultFG];
1776 if(base.mode & ATTR_REVERSE)
1777 temp = xfg, xfg = xbg, xbg = temp;
1779 XSetBackground(xw.dpy, dc.gc, xbg);
1780 XSetForeground(xw.dpy, dc.gc, xfg);
1782 if(base.mode & ATTR_GFX) {
1783 for(i = 0; i < bytelen; i++) {
1784 char c = gfx[(uint)s[i] % 256];
1787 else if(s[i] > 0x5f)
1792 XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
1793 dc.gc, winx, winy, s, bytelen);
1795 if(base.mode & ATTR_UNDERLINE)
1796 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1799 /* copy buffer pixmap to screen pixmap */
1801 xcopy(int x, int y, int cols, int rows) {
1802 int src_x = x*xw.cw, src_y = y*xw.ch, src_w = cols*xw.cw, src_h = rows*xw.ch;
1803 int dst_x = BORDER+src_x, dst_y = BORDER+src_y;
1804 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, src_x, src_y, src_w, src_h, dst_x, dst_y);
1809 static int oldx = 0;
1810 static int oldy = 0;
1812 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1814 LIMIT(oldx, 0, term.col-1);
1815 LIMIT(oldy, 0, term.row-1);
1817 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1818 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1820 /* remove the old cursor */
1821 if(term.line[oldy][oldx].state & GLYPH_SET) {
1822 sl = utf8size(term.line[oldy][oldx].c);
1823 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1825 xclear(oldx, oldy, oldx, oldy);
1827 xcopy(oldx, oldy, 1, 1);
1829 /* draw the new one */
1830 if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
1832 if(IS_SET(MODE_REVERSE))
1833 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
1834 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
1835 oldx = term.c.x, oldy = term.c.y;
1838 xcopy(term.c.x, term.c.y, 1, 1);
1843 drawregion(0, 0, term.col, term.row);
1844 gettimeofday(&xw.lastdraw, NULL);
1848 drawregion(int x1, int y1, int x2, int y2) {
1849 int ic, ib, x, y, ox, sl;
1851 char buf[DRAW_BUF_SIZ];
1853 if(!(xw.state & WIN_VISIBLE))
1856 for(y = y1; y < y2; y++) {
1859 xclear(0, y, term.col, y);
1861 base = term.line[y][0];
1863 for(x = x1; x < x2; x++) {
1864 new = term.line[y][x];
1865 if(sel.bx != -1 && *(new.c) && selected(x, y))
1866 new.mode ^= ATTR_REVERSE;
1867 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
1868 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
1869 xdraws(buf, base, ox, y, ic, ib);
1872 if(new.state & GLYPH_SET) {
1877 sl = utf8size(new.c);
1878 memcpy(buf+ib, new.c, sl);
1884 xdraws(buf, base, ox, y, ic, ib);
1885 xcopy(0, y, term.col, 1);
1891 expose(XEvent *ev) {
1892 XExposeEvent *e = &ev->xexpose;
1893 if(xw.state & WIN_REDRAW) {
1895 xw.state &= ~WIN_REDRAW;
1896 xcopy(0, 0, term.col, term.row);
1899 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
1900 e->width, e->height, e->x, e->y);
1904 visibility(XEvent *ev) {
1905 XVisibilityEvent *e = &ev->xvisibility;
1906 if(e->state == VisibilityFullyObscured)
1907 xw.state &= ~WIN_VISIBLE;
1908 else if(!(xw.state & WIN_VISIBLE))
1909 /* need a full redraw for next Expose, not just a buf copy */
1910 xw.state |= WIN_VISIBLE | WIN_REDRAW;
1915 xw.state &= ~WIN_VISIBLE;
1919 xseturgency(int add) {
1920 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1921 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
1922 XSetWMHints(xw.dpy, xw.win, h);
1928 if(ev->type == FocusIn) {
1929 xw.state |= WIN_FOCUSED;
1932 xw.state &= ~WIN_FOCUSED;
1937 kmap(KeySym k, uint state) {
1940 for(i = 0; i < LEN(key); i++) {
1941 uint mask = key[i].mask;
1942 if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
1943 return (char*)key[i].s;
1949 kpress(XEvent *ev) {
1950 XKeyEvent *e = &ev->xkey;
1959 meta = e->state & Mod1Mask;
1960 shift = e->state & ShiftMask;
1961 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
1963 /* 1. custom keys from config.h */
1964 if((customkey = kmap(ksym, e->state)))
1965 ttywrite(customkey, strlen(customkey));
1966 /* 2. hardcoded (overrides X lookup) */
1973 /* XXX: shift up/down doesn't work */
1974 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
1982 if(IS_SET(MODE_CRLF))
1983 ttywrite("\r\n", 2);
1990 if(meta && len == 1)
1991 ttywrite("\033", 1);
1999 cmessage(XEvent *e) {
2001 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
2002 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
2003 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
2004 xw.state |= WIN_FOCUSED;
2006 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
2007 xw.state &= ~WIN_FOCUSED;
2017 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
2020 xw.w = e->xconfigure.width;
2021 xw.h = e->xconfigure.height;
2022 col = (xw.w - 2*BORDER) / xw.cw;
2023 row = (xw.h - 2*BORDER) / xw.ch;
2024 if(col == term.col && row == term.row)
2026 if(tresize(col, row))
2028 ttyresize(col, row);
2033 last_draw_too_old(void) {
2035 gettimeofday(&now, NULL);
2036 return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
2043 int xfd = XConnectionNumber(xw.dpy);
2044 struct timeval timeout = {0};
2045 bool stuff_to_print = 0;
2049 FD_SET(cmdfd, &rfd);
2052 timeout.tv_usec = SELECT_TIMEOUT;
2053 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
2056 die("select failed: %s\n", SERRNO);
2058 if(FD_ISSET(cmdfd, &rfd)) {
2063 if(stuff_to_print && last_draw_too_old()) {
2068 while(XPending(xw.dpy)) {
2069 XNextEvent(xw.dpy, &ev);
2070 if(XFilterEvent(&ev, xw.win))
2072 if(handler[ev.type])
2073 (handler[ev.type])(&ev);
2079 main(int argc, char *argv[]) {
2082 for(i = 1; i < argc; i++) {
2083 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
2085 if(++i < argc) opt_title = argv[i];
2088 if(++i < argc) opt_class = argv[i];
2091 if(++i < argc) opt_embed = argv[i];
2094 /* eat every remaining arguments */
2095 if(++i < argc) opt_cmd = &argv[i];
2104 setlocale(LC_CTYPE, "");