1 /* See LICENSE for licence details. */
2 #define _XOPEN_SOURCE 600
13 #include <sys/ioctl.h>
14 #include <sys/select.h>
16 #include <sys/types.h>
19 #include <X11/Xatom.h>
21 #include <X11/Xutil.h>
22 #include <X11/cursorfont.h>
23 #include <X11/keysym.h>
30 #elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
32 #elif defined(__FreeBSD__) || defined(__DragonFly__)
37 "st " VERSION " (c) 2010-2011 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 SERRNO strerror(errno)
54 #define MIN(a, b) ((a) < (b) ? (a) : (b))
55 #define MAX(a, b) ((a) < (b) ? (b) : (a))
56 #define LEN(a) (sizeof(a) / sizeof(a[0]))
57 #define DEFAULT(a, b) (a) = (a) ? (a) : (b)
58 #define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
59 #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
60 #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
61 #define IS_SET(flag) (term.mode & (flag))
62 #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
63 #define X2COL(x) (((x) - BORDER)/xw.cw)
64 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
66 /* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
67 enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
68 enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
69 CURSOR_SAVE, CURSOR_LOAD };
70 enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
71 enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
72 enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
73 MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
74 enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
75 enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
78 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
81 char c[UTF_SIZ]; /* character code */
82 char mode; /* attribute flags */
83 int fg; /* foreground */
84 int bg; /* background */
85 char state; /* state flags */
91 Glyph attr; /* current char attributes */
97 /* CSI Escape sequence structs */
98 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
100 char buf[ESC_BUF_SIZ]; /* raw string */
101 int len; /* raw string length */
103 int arg[ESC_ARG_SIZ];
104 int narg; /* nb of args */
108 /* Internal representation of the screen */
110 int row; /* nb row */
111 int col; /* nb col */
112 Line* line; /* screen */
113 Line* alt; /* alternate screen */
114 char* dirty; /* dirtyness of lines */
115 TCursor c; /* cursor */
116 int top; /* top scroll limit */
117 int bot; /* bottom scroll limit */
118 int mode; /* terminal mode flags */
119 int esc; /* escape state flags */
120 char title[ESC_TITLE_SIZ];
124 /* Purely graphic info */
134 int w; /* window width */
135 int h; /* window height */
136 int bufw; /* pixmap width */
137 int bufh; /* pixmap height */
138 int ch; /* char height */
139 int cw; /* char width */
140 char state; /* focus, redraw, visible */
149 /* Drawing Context */
151 unsigned long col[256];
162 /* TODO: use better name for vars... */
167 struct {int x, y;} b, e;
170 struct timeval tclick1;
171 struct timeval tclick2;
176 static void die(const char*, ...);
177 static void draw(void);
178 static void drawregion(int, int, int, int);
179 static void execsh(void);
180 static void sigchld(int);
181 static void run(void);
183 static void csidump(void);
184 static void csihandle(void);
185 static void csiparse(void);
186 static void csireset(void);
188 static void tclearregion(int, int, int, int);
189 static void tcursor(int);
190 static void tdeletechar(int);
191 static void tdeleteline(int);
192 static void tinsertblank(int);
193 static void tinsertblankline(int);
194 static void tmoveto(int, int);
195 static void tnew(int, int);
196 static void tnewline(int);
197 static void tputtab(void);
198 static void tputc(char*);
199 static void treset(void);
200 static int tresize(int, int);
201 static void tscrollup(int, int);
202 static void tscrolldown(int, int);
203 static void tsetattr(int*, int);
204 static void tsetchar(char*);
205 static void tsetscroll(int, int);
206 static void tswapscreen(void);
207 static void tfulldirt(void);
209 static void ttynew(void);
210 static void ttyread(void);
211 static void ttyresize(int, int);
212 static void ttywrite(const char *, size_t);
214 static void xdraws(char *, Glyph, int, int, int, int);
215 static void xhints(void);
216 static void xclear(int, int, int, int);
217 static void xdrawcursor(void);
218 static void xinit(void);
219 static void xloadcols(void);
220 static void xseturgency(int);
221 static void xsetsel(char*);
222 static void xresize(int, int);
224 static void expose(XEvent *);
225 static void visibility(XEvent *);
226 static void unmap(XEvent *);
227 static char* kmap(KeySym, unsigned int state);
228 static void kpress(XEvent *);
229 static void cmessage(XEvent *);
230 static void resize(XEvent *);
231 static void focus(XEvent *);
232 static void brelease(XEvent *);
233 static void bpress(XEvent *);
234 static void bmotion(XEvent *);
235 static void selnotify(XEvent *);
236 static void selrequest(XEvent *);
238 static void selinit(void);
239 static inline int selected(int, int);
240 static void selcopy(void);
241 static void selpaste();
242 static void selscroll(int, int);
244 static int utf8decode(char *, long *);
245 static int utf8encode(long *, char *);
246 static int utf8size(char *);
247 static int isfullutf8(char *, int);
249 static void (*handler[LASTEvent])(XEvent *) = {
251 [ClientMessage] = cmessage,
252 [ConfigureNotify] = resize,
253 [VisibilityNotify] = visibility,
254 [UnmapNotify] = unmap,
258 [MotionNotify] = bmotion,
259 [ButtonPress] = bpress,
260 [ButtonRelease] = brelease,
261 [SelectionNotify] = selnotify,
262 [SelectionRequest] = selrequest,
269 static CSIEscape escseq;
272 static Selection sel;
273 static char **opt_cmd = NULL;
274 static char *opt_title = NULL;
275 static char *opt_embed = NULL;
276 static char *opt_class = NULL;
279 utf8decode(char *s, long *u) {
285 if(~c&B7) { /* 0xxxxxxx */
288 } else if((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
289 *u = c&(B4|B3|B2|B1|B0);
291 } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
292 *u = c&(B3|B2|B1|B0);
294 } else if((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
299 for(i=n,++s; i>0; --i,++rtn,++s) {
301 if((c&(B7|B6)) != B7) /* 10xxxxxx */
304 *u |= c&(B5|B4|B3|B2|B1|B0);
306 if((n == 1 && *u < 0x80) ||
307 (n == 2 && *u < 0x800) ||
308 (n == 3 && *u < 0x10000) ||
309 (*u >= 0xD800 && *u <= 0xDFFF))
318 utf8encode(long *u, char *s) {
323 sp = (unsigned char*) s;
326 *sp = uc; /* 0xxxxxxx */
328 } else if(*u < 0x800) {
329 *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
331 } else if(uc < 0x10000) {
332 *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
334 } else if(uc <= 0x10FFFF) {
335 *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
340 for(i=n,++sp; i>0; --i,++sp)
341 *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
351 /* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
352 UTF-8 otherwise return 0 */
354 isfullutf8(char *s, int b) {
355 unsigned char *c1, *c2, *c3;
357 c1 = (unsigned char *) s;
358 c2 = (unsigned char *) ++s;
359 c3 = (unsigned char *) ++s;
362 else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
364 else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
366 ((b == 2) && (*c2&(B7|B6)) == B7)))
368 else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
370 ((b == 2) && (*c2&(B7|B6)) == B7) ||
371 ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
379 unsigned char c = *s;
383 else if((c&(B7|B6|B5)) == (B7|B6))
385 else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
393 sel.tclick1.tv_sec = 0;
394 sel.tclick1.tv_usec = 0;
398 sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
399 if(sel.xtarget == None)
400 sel.xtarget = XA_STRING;
404 selected(int x, int y) {
405 if(sel.ey == y && sel.by == y) {
406 int bx = MIN(sel.bx, sel.ex);
407 int ex = MAX(sel.bx, sel.ex);
408 return BETWEEN(x, bx, ex);
410 return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
411 || (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
415 getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
417 *b = e->xbutton.button;
419 *x = X2COL(e->xbutton.x);
420 *y = Y2ROW(e->xbutton.y);
421 sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
422 sel.b.y = MIN(sel.by, sel.ey);
423 sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
424 sel.e.y = MAX(sel.by, sel.ey);
428 mousereport(XEvent *e) {
429 int x = X2COL(e->xbutton.x);
430 int y = Y2ROW(e->xbutton.y);
431 int button = e->xbutton.button;
432 int state = e->xbutton.state;
433 char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
434 static int ob, ox, oy;
437 if(e->xbutton.type == MotionNotify) {
438 if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
442 } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
448 if(e->xbutton.type == ButtonPress) {
454 buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
455 + (state & Mod4Mask ? 8 : 0)
456 + (state & ControlMask ? 16 : 0);
458 ttywrite(buf, sizeof(buf));
463 if(IS_SET(MODE_MOUSE))
465 else if(e->xbutton.button == Button1) {
467 for(int i=sel.b.y; i<=sel.e.y; i++)
470 sel.ex = sel.bx = X2COL(e->xbutton.x);
471 sel.ey = sel.by = Y2ROW(e->xbutton.y);
478 int x, y, sz, sl, ls = 0;
483 sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
484 ptr = str = malloc(sz);
485 for(y = 0; y < term.row; y++) {
486 for(x = 0; x < term.col; x++)
487 if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
488 sl = utf8size(term.line[y][x].c);
489 memcpy(ptr, term.line[y][x].c, sl);
492 if(ls && y < sel.e.y)
501 selnotify(XEvent *e) {
502 unsigned long nitems, ofs, rem;
509 if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
510 False, AnyPropertyType, &type, &format,
511 &nitems, &rem, &data)) {
512 fprintf(stderr, "Clipboard allocation failed\n");
515 ttywrite((const char *) data, nitems * format / 8);
517 /* number of 32-bit chunks returned */
518 ofs += nitems * format / 32;
524 XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
528 selrequest(XEvent *e) {
529 XSelectionRequestEvent *xsre;
533 xsre = (XSelectionRequestEvent *) e;
534 xev.type = SelectionNotify;
535 xev.requestor = xsre->requestor;
536 xev.selection = xsre->selection;
537 xev.target = xsre->target;
538 xev.time = xsre->time;
542 xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
543 if(xsre->target == xa_targets) {
544 /* respond with the supported type */
545 Atom string = sel.xtarget;
546 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
547 XA_ATOM, 32, PropModeReplace,
548 (unsigned char *) &string, 1);
549 xev.property = xsre->property;
550 } else if(xsre->target == sel.xtarget) {
551 XChangeProperty(xsre->display, xsre->requestor, xsre->property,
552 xsre->target, 8, PropModeReplace,
553 (unsigned char *) sel.clip, strlen(sel.clip));
554 xev.property = xsre->property;
557 /* all done, send a notification to the listener */
558 if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
559 fprintf(stderr, "Error sending SelectionNotify event\n");
564 /* register the selection for both the clipboard and the primary */
570 XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
572 clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
573 XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
579 brelease(XEvent *e) {
580 if(IS_SET(MODE_MOUSE)) {
584 if(e->xbutton.button == Button2)
586 else if(e->xbutton.button == Button1) {
588 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
589 term.dirty[sel.ey] = 1;
590 if(sel.bx == sel.ex && sel.by == sel.ey) {
593 gettimeofday(&now, NULL);
595 if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
596 /* triple click on the line */
597 sel.b.x = sel.bx = 0;
598 sel.e.x = sel.ex = term.col;
599 sel.b.y = sel.e.y = sel.ey;
601 } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
602 /* double click to select word */
604 while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
605 term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
607 while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
608 term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
610 sel.b.y = sel.e.y = sel.ey;
616 memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
617 gettimeofday(&sel.tclick1, NULL);
623 if(IS_SET(MODE_MOUSE)) {
628 int oldey = sel.ey, oldex = sel.ex;
629 getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
631 if(oldey != sel.ey || oldex != sel.ex) {
632 int starty = MIN(oldey, sel.ey);
633 int endy = MAX(oldey, sel.ey);
634 for(int i=starty; i<=endy; i++)
642 die(const char *errstr, ...) {
645 va_start(ap, errstr);
646 vfprintf(stderr, errstr, ap);
654 char *envshell = getenv("SHELL");
656 DEFAULT(envshell, "sh");
657 putenv("TERM="TNAME);
658 args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
659 execvp(args[0], args);
666 if(waitpid(pid, &stat, 0) < 0)
667 die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
669 exit(WEXITSTATUS(stat));
678 /* seems to work fine on linux, openbsd and freebsd */
679 struct winsize w = {term.row, term.col, 0, 0};
680 if(openpty(&m, &s, NULL, NULL, &w) < 0)
681 die("openpty failed: %s\n", SERRNO);
683 switch(pid = fork()) {
685 die("fork failed\n");
688 setsid(); /* create a new process group */
689 dup2(s, STDIN_FILENO);
690 dup2(s, STDOUT_FILENO);
691 dup2(s, STDERR_FILENO);
692 if(ioctl(s, TIOCSCTTY, NULL) < 0)
693 die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
701 signal(SIGCHLD, sigchld);
708 fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
710 fprintf(stderr, "\n");
715 static char buf[BUFSIZ];
716 static int buflen = 0;
719 int charsize; /* size of utf8 char in bytes */
723 /* append read bytes to unprocessed bytes */
724 if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
725 die("Couldn't read from shell: %s\n", SERRNO);
727 /* process every complete utf8 char */
730 while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
731 charsize = utf8decode(ptr, &utf8c);
732 utf8encode(&utf8c, s);
738 /* keep any uncomplete utf8 char for the next call */
739 memmove(buf, ptr, buflen);
743 ttywrite(const char *s, size_t n) {
744 if(write(cmdfd, s, n) == -1)
745 die("write error on tty: %s\n", SERRNO);
749 ttyresize(int x, int y) {
754 w.ws_xpixel = w.ws_ypixel = 0;
755 if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
756 fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
763 for(i = 0; i < term.row; i++)
771 if(mode == CURSOR_SAVE)
773 else if(mode == CURSOR_LOAD)
774 term.c = c, tmoveto(c.x, c.y);
783 }, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
785 term.top = 0, term.bot = term.row - 1;
786 term.mode = MODE_WRAP;
787 tclearregion(0, 0, term.col-1, term.row-1);
791 tnew(int col, int row) {
792 /* set screen size */
793 term.row = row, term.col = col;
794 term.line = malloc(term.row * sizeof(Line));
795 term.alt = malloc(term.row * sizeof(Line));
796 term.dirty = malloc(term.row * sizeof(*term.dirty));
798 for(row = 0; row < term.row; row++) {
799 term.line[row] = malloc(term.col * sizeof(Glyph));
800 term.alt [row] = malloc(term.col * sizeof(Glyph));
809 Line* tmp = term.line;
810 term.line = term.alt;
812 term.mode ^= MODE_ALTSCREEN;
817 tscrolldown(int orig, int n) {
821 LIMIT(n, 0, term.bot-orig+1);
823 tclearregion(0, term.bot-n+1, term.col-1, term.bot);
825 for(i = term.bot; i >= orig+n; i--) {
827 term.line[i] = term.line[i-n];
828 term.line[i-n] = temp;
838 tscrollup(int orig, int n) {
841 LIMIT(n, 0, term.bot-orig+1);
843 tclearregion(0, orig, term.col-1, orig+n-1);
845 for(i = orig; i <= term.bot-n; i++) {
847 term.line[i] = term.line[i+n];
848 term.line[i+n] = temp;
858 selscroll(int orig, int n) {
862 if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
863 if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
867 if(sel.by < term.top) {
871 if(sel.ey > term.bot) {
875 sel.b.y = sel.by, sel.b.x = sel.bx;
876 sel.e.y = sel.ey, sel.e.x = sel.ex;
881 tnewline(int first_col) {
884 tscrollup(term.top, 1);
887 tmoveto(first_col ? 0 : term.c.x, y);
893 char *p = escseq.buf;
897 escseq.priv = 1, p++;
899 while(p < escseq.buf+escseq.len) {
901 escseq.arg[escseq.narg] *= 10;
902 escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
904 if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
915 tmoveto(int x, int y) {
916 LIMIT(x, 0, term.col-1);
917 LIMIT(y, 0, term.row-1);
918 term.c.state &= ~CURSOR_WRAPNEXT;
925 term.dirty[term.c.y] = 1;
926 term.line[term.c.y][term.c.x] = term.c.attr;
927 memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
928 term.line[term.c.y][term.c.x].state |= GLYPH_SET;
932 tclearregion(int x1, int y1, int x2, int y2) {
936 temp = x1, x1 = x2, x2 = temp;
938 temp = y1, y1 = y2, y2 = temp;
940 LIMIT(x1, 0, term.col-1);
941 LIMIT(x2, 0, term.col-1);
942 LIMIT(y1, 0, term.row-1);
943 LIMIT(y2, 0, term.row-1);
945 for(y = y1; y <= y2; y++) {
947 for(x = x1; x <= x2; x++)
948 term.line[y][x].state = 0;
954 int src = term.c.x + n;
956 int size = term.col - src;
958 term.dirty[term.c.y] = 1;
960 if(src >= term.col) {
961 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
964 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
965 tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
969 tinsertblank(int n) {
972 int size = term.col - dst;
974 term.dirty[term.c.y] = 1;
976 if(dst >= term.col) {
977 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
980 memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
981 tclearregion(src, term.c.y, dst - 1, term.c.y);
985 tinsertblankline(int n) {
986 if(term.c.y < term.top || term.c.y > term.bot)
989 tscrolldown(term.c.y, n);
994 if(term.c.y < term.top || term.c.y > term.bot)
997 tscrollup(term.c.y, n);
1001 tsetattr(int *attr, int l) {
1004 for(i = 0; i < l; i++) {
1007 term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
1008 term.c.attr.fg = DefaultFG;
1009 term.c.attr.bg = DefaultBG;
1012 term.c.attr.mode |= ATTR_BOLD;
1015 term.c.attr.mode |= ATTR_UNDERLINE;
1018 term.c.attr.mode |= ATTR_REVERSE;
1021 term.c.attr.mode &= ~ATTR_BOLD;
1024 term.c.attr.mode &= ~ATTR_UNDERLINE;
1027 term.c.attr.mode &= ~ATTR_REVERSE;
1030 if(i + 2 < l && attr[i + 1] == 5) {
1032 if(BETWEEN(attr[i], 0, 255))
1033 term.c.attr.fg = attr[i];
1035 fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
1038 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1041 term.c.attr.fg = DefaultFG;
1044 if(i + 2 < l && attr[i + 1] == 5) {
1046 if(BETWEEN(attr[i], 0, 255))
1047 term.c.attr.bg = attr[i];
1049 fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
1052 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
1055 term.c.attr.bg = DefaultBG;
1058 if(BETWEEN(attr[i], 30, 37))
1059 term.c.attr.fg = attr[i] - 30;
1060 else if(BETWEEN(attr[i], 40, 47))
1061 term.c.attr.bg = attr[i] - 40;
1062 else if(BETWEEN(attr[i], 90, 97))
1063 term.c.attr.fg = attr[i] - 90 + 8;
1064 else if(BETWEEN(attr[i], 100, 107))
1065 term.c.attr.fg = attr[i] - 100 + 8;
1067 fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
1075 tsetscroll(int t, int b) {
1078 LIMIT(t, 0, term.row-1);
1079 LIMIT(b, 0, term.row-1);
1091 switch(escseq.mode) {
1094 fprintf(stderr, "erresc: unknown csi ");
1098 case '@': /* ICH -- Insert <n> blank char */
1099 DEFAULT(escseq.arg[0], 1);
1100 tinsertblank(escseq.arg[0]);
1102 case 'A': /* CUU -- Cursor <n> Up */
1104 DEFAULT(escseq.arg[0], 1);
1105 tmoveto(term.c.x, term.c.y-escseq.arg[0]);
1107 case 'B': /* CUD -- Cursor <n> Down */
1108 DEFAULT(escseq.arg[0], 1);
1109 tmoveto(term.c.x, term.c.y+escseq.arg[0]);
1111 case 'C': /* CUF -- Cursor <n> Forward */
1113 DEFAULT(escseq.arg[0], 1);
1114 tmoveto(term.c.x+escseq.arg[0], term.c.y);
1116 case 'D': /* CUB -- Cursor <n> Backward */
1117 DEFAULT(escseq.arg[0], 1);
1118 tmoveto(term.c.x-escseq.arg[0], term.c.y);
1120 case 'E': /* CNL -- Cursor <n> Down and first col */
1121 DEFAULT(escseq.arg[0], 1);
1122 tmoveto(0, term.c.y+escseq.arg[0]);
1124 case 'F': /* CPL -- Cursor <n> Up and first col */
1125 DEFAULT(escseq.arg[0], 1);
1126 tmoveto(0, term.c.y-escseq.arg[0]);
1128 case 'G': /* CHA -- Move to <col> */
1129 case '`': /* XXX: HPA -- same? */
1130 DEFAULT(escseq.arg[0], 1);
1131 tmoveto(escseq.arg[0]-1, term.c.y);
1133 case 'H': /* CUP -- Move to <row> <col> */
1134 case 'f': /* XXX: HVP -- same? */
1135 DEFAULT(escseq.arg[0], 1);
1136 DEFAULT(escseq.arg[1], 1);
1137 tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
1139 /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
1140 case 'J': /* ED -- Clear screen */
1142 switch(escseq.arg[0]) {
1144 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1145 if(term.c.y < term.row-1)
1146 tclearregion(0, term.c.y+1, term.col-1, term.row-1);
1150 tclearregion(0, 0, term.col-1, term.c.y-1);
1151 tclearregion(0, term.c.y, term.c.x, term.c.y);
1154 tclearregion(0, 0, term.col-1, term.row-1);
1160 case 'K': /* EL -- Clear line */
1161 switch(escseq.arg[0]) {
1163 tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
1166 tclearregion(0, term.c.y, term.c.x, term.c.y);
1169 tclearregion(0, term.c.y, term.col-1, term.c.y);
1173 case 'S': /* SU -- Scroll <n> line up */
1174 DEFAULT(escseq.arg[0], 1);
1175 tscrollup(term.top, escseq.arg[0]);
1177 case 'T': /* SD -- Scroll <n> line down */
1178 DEFAULT(escseq.arg[0], 1);
1179 tscrolldown(term.top, escseq.arg[0]);
1181 case 'L': /* IL -- Insert <n> blank lines */
1182 DEFAULT(escseq.arg[0], 1);
1183 tinsertblankline(escseq.arg[0]);
1185 case 'l': /* RM -- Reset Mode */
1187 switch(escseq.arg[0]) {
1189 term.mode &= ~MODE_APPKEYPAD;
1191 case 5: /* DECSCNM -- Remove reverse video */
1192 if(IS_SET(MODE_REVERSE)) {
1193 term.mode &= ~MODE_REVERSE;
1198 term.mode &= ~MODE_WRAP;
1200 case 12: /* att610 -- Stop blinking cursor (IGNORED) */
1203 term.mode &= ~MODE_CRLF;
1206 term.c.state |= CURSOR_HIDE;
1208 case 1000: /* disable X11 xterm mouse reporting */
1209 term.mode &= ~MODE_MOUSEBTN;
1212 term.mode &= ~MODE_MOUSEMOTION;
1214 case 1049: /* = 1047 and 1048 */
1217 if(IS_SET(MODE_ALTSCREEN)) {
1218 tclearregion(0, 0, term.col-1, term.row-1);
1221 if(escseq.arg[0] != 1049)
1224 tcursor(CURSOR_LOAD);
1230 switch(escseq.arg[0]) {
1232 term.mode &= ~MODE_INSERT;
1239 case 'M': /* DL -- Delete <n> lines */
1240 DEFAULT(escseq.arg[0], 1);
1241 tdeleteline(escseq.arg[0]);
1243 case 'X': /* ECH -- Erase <n> char */
1244 DEFAULT(escseq.arg[0], 1);
1245 tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
1247 case 'P': /* DCH -- Delete <n> char */
1248 DEFAULT(escseq.arg[0], 1);
1249 tdeletechar(escseq.arg[0]);
1251 /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
1252 case 'd': /* VPA -- Move to <row> */
1253 DEFAULT(escseq.arg[0], 1);
1254 tmoveto(term.c.x, escseq.arg[0]-1);
1256 case 'h': /* SM -- Set terminal mode */
1258 switch(escseq.arg[0]) {
1260 term.mode |= MODE_APPKEYPAD;
1262 case 5: /* DECSCNM -- Reverve video */
1263 if(!IS_SET(MODE_REVERSE)) {
1264 term.mode |= MODE_REVERSE;
1269 term.mode |= MODE_WRAP;
1272 term.mode |= MODE_CRLF;
1274 case 12: /* att610 -- Start blinking cursor (IGNORED) */
1275 /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
1276 if(escseq.narg > 1 && escseq.arg[1] != 25)
1279 term.c.state &= ~CURSOR_HIDE;
1281 case 1000: /* 1000,1002: enable xterm mouse report */
1282 term.mode |= MODE_MOUSEBTN;
1285 term.mode |= MODE_MOUSEMOTION;
1287 case 1049: /* = 1047 and 1048 */
1290 if(IS_SET(MODE_ALTSCREEN))
1291 tclearregion(0, 0, term.col-1, term.row-1);
1294 if(escseq.arg[0] != 1049)
1297 tcursor(CURSOR_SAVE);
1299 default: goto unknown;
1302 switch(escseq.arg[0]) {
1304 term.mode |= MODE_INSERT;
1306 default: goto unknown;
1310 case 'm': /* SGR -- Terminal attribute (color) */
1311 tsetattr(escseq.arg, escseq.narg);
1313 case 'r': /* DECSTBM -- Set Scrolling Region */
1317 DEFAULT(escseq.arg[0], 1);
1318 DEFAULT(escseq.arg[1], term.row);
1319 tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
1323 case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
1324 tcursor(CURSOR_SAVE);
1326 case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
1327 tcursor(CURSOR_LOAD);
1335 printf("ESC [ %s", escseq.priv ? "? " : "");
1337 for(i = 0; i < escseq.narg; i++)
1338 printf("%d ", escseq.arg[i]);
1340 putchar(escseq.mode);
1346 memset(&escseq, 0, sizeof(escseq));
1351 int space = TAB - term.c.x % TAB;
1352 tmoveto(term.c.x + space, term.c.y);
1358 if(term.esc & ESC_START) {
1359 if(term.esc & ESC_CSI) {
1360 escseq.buf[escseq.len++] = ascii;
1361 if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
1363 csiparse(), csihandle();
1365 /* TODO: handle other OSC */
1366 } else if(term.esc & ESC_OSC) {
1369 term.esc = ESC_START | ESC_TITLE;
1371 } else if(term.esc & ESC_TITLE) {
1372 if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
1374 term.title[term.titlelen] = '\0';
1375 XStoreName(xw.dpy, xw.win, term.title);
1377 term.title[term.titlelen++] = ascii;
1379 } else if(term.esc & ESC_ALTCHARSET) {
1381 case '0': /* Line drawing crap */
1382 term.c.attr.mode |= ATTR_GFX;
1384 case 'B': /* Back to regular text */
1385 term.c.attr.mode &= ~ATTR_GFX;
1388 fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
1394 term.esc |= ESC_CSI;
1397 term.esc |= ESC_OSC;
1400 term.esc |= ESC_ALTCHARSET;
1402 case 'D': /* IND -- Linefeed */
1403 if(term.c.y == term.bot)
1404 tscrollup(term.top, 1);
1406 tmoveto(term.c.x, term.c.y+1);
1409 case 'E': /* NEL -- Next line */
1410 tnewline(1); /* always go to first col */
1413 case 'M': /* RI -- Reverse index */
1414 if(term.c.y == term.top)
1415 tscrolldown(term.top, 1);
1417 tmoveto(term.c.x, term.c.y-1);
1420 case 'c': /* RIS -- Reset to inital state */
1424 case '=': /* DECPAM -- Application keypad */
1425 term.mode |= MODE_APPKEYPAD;
1428 case '>': /* DECPNM -- Normal keypad */
1429 term.mode &= ~MODE_APPKEYPAD;
1432 case '7': /* DECSC -- Save Cursor */
1433 tcursor(CURSOR_SAVE);
1436 case '8': /* DECRC -- Restore Cursor */
1437 tcursor(CURSOR_LOAD);
1441 fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
1442 (unsigned char) ascii, isprint(ascii)?ascii:'.');
1447 if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
1454 tmoveto(term.c.x-1, term.c.y);
1457 tmoveto(0, term.c.y);
1462 /* go to first col if the mode is set */
1463 tnewline(IS_SET(MODE_CRLF));
1466 if(!(xw.state & WIN_FOCUSED))
1471 term.esc = ESC_START;
1474 if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
1475 tnewline(1); /* always go to first col */
1477 if(term.c.x+1 < term.col)
1478 tmoveto(term.c.x+1, term.c.y);
1480 term.c.state |= CURSOR_WRAPNEXT;
1486 tresize(int col, int row) {
1488 int minrow = MIN(row, term.row);
1489 int mincol = MIN(col, term.col);
1490 int slide = term.c.y - row + 1;
1492 if(col < 1 || row < 1)
1495 /* free unneeded rows */
1498 /* slide screen to keep cursor where we expect it -
1499 * tscrollup would work here, but we can optimize to
1500 * memmove because we're freeing the earlier lines */
1501 for(/* i = 0 */; i < slide; i++) {
1505 memmove(term.line, term.line + slide, row * sizeof(Line));
1506 memmove(term.alt, term.alt + slide, row * sizeof(Line));
1508 for(i += row; i < term.row; i++) {
1513 /* resize to new height */
1514 term.line = realloc(term.line, row * sizeof(Line));
1515 term.alt = realloc(term.alt, row * sizeof(Line));
1516 term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
1518 /* resize each row to new width, zero-pad if needed */
1519 for(i = 0; i < minrow; i++) {
1521 term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
1522 term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
1523 for(x = mincol; x < col; x++) {
1524 term.line[i][x].state = 0;
1525 term.alt[i][x].state = 0;
1529 /* allocate any new rows */
1530 for(/* i == minrow */; i < row; i++) {
1532 term.line[i] = calloc(col, sizeof(Glyph));
1533 term.alt [i] = calloc(col, sizeof(Glyph));
1536 /* update terminal size */
1537 term.col = col, term.row = row;
1538 /* make use of the LIMIT in tmoveto */
1539 tmoveto(term.c.x, term.c.y);
1540 /* reset scrolling region */
1541 tsetscroll(0, row-1);
1547 xresize(int col, int row) {
1553 xw.bufw = MAX(1, col * xw.cw);
1554 xw.bufh = MAX(1, row * xw.ch);
1555 newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1556 XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
1557 XFreePixmap(xw.dpy, xw.buf);
1558 XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
1560 XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
1561 xw.bufw-oldw, MIN(xw.bufh, oldh));
1562 else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
1563 XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
1564 xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
1567 XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
1568 xw.bufw, xw.bufh-oldh);
1569 else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
1570 XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
1571 xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
1580 unsigned long white = WhitePixel(xw.dpy, xw.scr);
1582 for(i = 0; i < LEN(colorname); i++) {
1583 if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
1585 fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
1587 dc.col[i] = color.pixel;
1590 /* same colors as xterm */
1591 for(r = 0; r < 6; r++)
1592 for(g = 0; g < 6; g++)
1593 for(b = 0; b < 6; b++) {
1594 color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
1595 color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
1596 color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
1597 if(!XAllocColor(xw.dpy, xw.cmap, &color)) {
1599 fprintf(stderr, "Could not allocate color %d\n", i);
1601 dc.col[i] = color.pixel;
1605 for(r = 0; r < 24; r++, i++) {
1606 color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
1607 if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
1609 fprintf(stderr, "Could not allocate color %d\n", i);
1611 dc.col[i] = color.pixel;
1616 xclear(int x1, int y1, int x2, int y2) {
1617 XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
1618 XFillRectangle(xw.dpy, xw.buf, dc.gc,
1619 x1 * xw.cw, y1 * xw.ch,
1620 (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
1625 XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
1626 XWMHints wm = {.flags = InputHint, .input = 1};
1628 .flags = PSize | PResizeInc | PBaseSize,
1631 .height_inc = xw.ch,
1633 .base_height = 2*BORDER,
1634 .base_width = 2*BORDER,
1636 XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
1640 xinitfont(char *fontstr) {
1642 char *def, **missing;
1646 set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
1649 fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
1650 XFreeStringList(missing);
1656 xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
1657 XFontStruct **xfonts;
1661 *ascent = *descent = *lbearing = *rbearing = 0;
1662 n = XFontsOfFontSet(set, &xfonts, &font_names);
1663 for(i = 0; i < n; i++) {
1664 *ascent = MAX(*ascent, (*xfonts)->ascent);
1665 *descent = MAX(*descent, (*xfonts)->descent);
1666 *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
1667 *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
1673 initfonts(char *fontstr, char *bfontstr) {
1674 if((dc.font.set = xinitfont(fontstr)) == NULL ||
1675 (dc.bfont.set = xinitfont(bfontstr)) == NULL)
1676 die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
1677 xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
1678 &dc.font.lbearing, &dc.font.rbearing);
1679 xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
1680 &dc.bfont.lbearing, &dc.bfont.rbearing);
1685 XSetWindowAttributes attrs;
1689 if(!(xw.dpy = XOpenDisplay(NULL)))
1690 die("Can't open display\n");
1691 xw.scr = XDefaultScreen(xw.dpy);
1694 initfonts(FONT, BOLDFONT);
1696 /* XXX: Assuming same size for bold font */
1697 xw.cw = dc.font.rbearing - dc.font.lbearing;
1698 xw.ch = dc.font.ascent + dc.font.descent;
1701 xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
1704 /* window - default size */
1705 xw.bufh = term.row * xw.ch;
1706 xw.bufw = term.col * xw.cw;
1707 xw.h = xw.bufh + 2*BORDER;
1708 xw.w = xw.bufw + 2*BORDER;
1710 attrs.background_pixel = dc.col[DefaultBG];
1711 attrs.border_pixel = dc.col[DefaultBG];
1712 attrs.bit_gravity = NorthWestGravity;
1713 attrs.event_mask = FocusChangeMask | KeyPressMask
1714 | ExposureMask | VisibilityChangeMask | StructureNotifyMask
1715 | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
1716 | EnterWindowMask | LeaveWindowMask;
1717 attrs.colormap = xw.cmap;
1719 parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
1720 xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
1721 xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
1722 XDefaultVisual(xw.dpy, xw.scr),
1723 CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
1726 xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
1730 xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
1731 xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
1732 | XIMStatusNothing, XNClientWindow, xw.win,
1733 XNFocusWindow, xw.win, NULL);
1735 dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
1737 /* white cursor, black outline */
1738 cursor = XCreateFontCursor(xw.dpy, XC_xterm);
1739 XDefineCursor(xw.dpy, xw.win, cursor);
1740 XRecolorCursor(xw.dpy, cursor,
1741 &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
1742 &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
1744 xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
1746 XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
1747 XMapWindow(xw.dpy, xw.win);
1753 xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
1754 unsigned long xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
1755 int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
1758 /* only switch default fg/bg if term is in RV mode */
1759 if(IS_SET(MODE_REVERSE)) {
1760 if(base.fg == DefaultFG)
1761 xfg = dc.col[DefaultBG];
1762 if(base.bg == DefaultBG)
1763 xbg = dc.col[DefaultFG];
1766 if(base.mode & ATTR_REVERSE)
1767 temp = xfg, xfg = xbg, xbg = temp;
1769 XSetBackground(xw.dpy, dc.gc, xbg);
1770 XSetForeground(xw.dpy, dc.gc, xfg);
1772 if(base.mode & ATTR_GFX) {
1773 for(i = 0; i < bytelen; i++) {
1774 char c = gfx[(unsigned int)s[i] % 256];
1777 else if(s[i] > 0x5f)
1782 XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
1783 dc.gc, winx, winy, s, bytelen);
1785 if(base.mode & ATTR_UNDERLINE)
1786 XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
1791 static int oldx = 0;
1792 static int oldy = 0;
1794 Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
1796 LIMIT(oldx, 0, term.col-1);
1797 LIMIT(oldy, 0, term.row-1);
1799 if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
1800 memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
1802 /* remove the old cursor */
1803 if(term.line[oldy][oldx].state & GLYPH_SET) {
1804 sl = utf8size(term.line[oldy][oldx].c);
1805 xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
1807 xclear(oldx, oldy, oldx, oldy);
1809 /* draw the new one */
1810 if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
1812 if(IS_SET(MODE_REVERSE))
1813 g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
1814 xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
1815 oldx = term.c.x, oldy = term.c.y;
1821 drawregion(0, 0, term.col, term.row);
1825 drawregion(int x1, int y1, int x2, int y2) {
1826 int ic, ib, x, y, ox, sl;
1828 char buf[DRAW_BUF_SIZ];
1830 if(!(xw.state & WIN_VISIBLE))
1833 for(y = y1; y < y2; y++) {
1836 xclear(0, y, term.col, y);
1838 base = term.line[y][0];
1840 for(x = x1; x < x2; x++) {
1841 new = term.line[y][x];
1842 if(sel.bx != -1 && *(new.c) && selected(x, y))
1843 new.mode ^= ATTR_REVERSE;
1844 if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
1845 ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
1846 xdraws(buf, base, ox, y, ic, ib);
1849 if(new.state & GLYPH_SET) {
1854 sl = utf8size(new.c);
1855 memcpy(buf+ib, new.c, sl);
1861 xdraws(buf, base, ox, y, ic, ib);
1864 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, x1*xw.cw, y1*xw.ch, x2*xw.cw, y2*xw.ch, BORDER, BORDER);
1868 expose(XEvent *ev) {
1869 XExposeEvent *e = &ev->xexpose;
1870 if(xw.state & WIN_REDRAW) {
1872 xw.state &= ~WIN_REDRAW;
1876 XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
1877 e->width, e->height, e->x, e->y);
1881 visibility(XEvent *ev) {
1882 XVisibilityEvent *e = &ev->xvisibility;
1883 if(e->state == VisibilityFullyObscured)
1884 xw.state &= ~WIN_VISIBLE;
1885 else if(!(xw.state & WIN_VISIBLE))
1886 /* need a full redraw for next Expose, not just a buf copy */
1887 xw.state |= WIN_VISIBLE | WIN_REDRAW;
1892 xw.state &= ~WIN_VISIBLE;
1896 xseturgency(int add) {
1897 XWMHints *h = XGetWMHints(xw.dpy, xw.win);
1898 h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
1899 XSetWMHints(xw.dpy, xw.win, h);
1905 if(ev->type == FocusIn) {
1906 xw.state |= WIN_FOCUSED;
1909 xw.state &= ~WIN_FOCUSED;
1914 kmap(KeySym k, unsigned int state) {
1917 for(i = 0; i < LEN(key); i++) {
1918 unsigned int mask = key[i].mask;
1919 if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
1920 return (char*)key[i].s;
1926 kpress(XEvent *ev) {
1927 XKeyEvent *e = &ev->xkey;
1936 meta = e->state & Mod1Mask;
1937 shift = e->state & ShiftMask;
1938 len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
1940 /* 1. custom keys from config.h */
1941 if((customkey = kmap(ksym, e->state)))
1942 ttywrite(customkey, strlen(customkey));
1943 /* 2. hardcoded (overrides X lookup) */
1950 /* XXX: shift up/down doesn't work */
1951 sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
1959 if(IS_SET(MODE_CRLF))
1960 ttywrite("\r\n", 2);
1967 if(meta && len == 1)
1968 ttywrite("\033", 1);
1976 cmessage(XEvent *e) {
1978 http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
1979 if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
1980 if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
1981 xw.state |= WIN_FOCUSED;
1983 } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
1984 xw.state &= ~WIN_FOCUSED;
1994 if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
1997 xw.w = e->xconfigure.width;
1998 xw.h = e->xconfigure.height;
1999 col = (xw.w - 2*BORDER) / xw.cw;
2000 row = (xw.h - 2*BORDER) / xw.ch;
2001 if(col == term.col && row == term.row)
2003 if(tresize(col, row))
2005 ttyresize(col, row);
2013 int xfd = XConnectionNumber(xw.dpy);
2017 FD_SET(cmdfd, &rfd);
2019 if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
2022 die("select failed: %s\n", SERRNO);
2024 if(FD_ISSET(cmdfd, &rfd)) {
2028 while(XPending(xw.dpy)) {
2029 XNextEvent(xw.dpy, &ev);
2030 if(XFilterEvent(&ev, xw.win))
2032 if(handler[ev.type])
2033 (handler[ev.type])(&ev);
2039 main(int argc, char *argv[]) {
2042 for(i = 1; i < argc; i++) {
2043 switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
2045 if(++i < argc) opt_title = argv[i];
2048 if(++i < argc) opt_class = argv[i];
2051 if(++i < argc) opt_embed = argv[i];
2054 /* eat every remaining arguments */
2055 if(++i < argc) opt_cmd = &argv[i];
2064 setlocale(LC_CTYPE, "");