X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/12435817723b44189bd412937403c401e5bbc136..674434ef6f75247fb25d8e5b39786bca9a0cabec:/st.c?ds=sidebyside
diff --git a/st.c b/st.c
index 594b0d3..ed750e6 100644
--- a/st.c
+++ b/st.c
@@ -16,14 +16,15 @@
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
-#include <X11/Xlib.h>
#include <X11/Xatom.h>
-#include <X11/keysym.h>
+#include <X11/Xlib.h>
#include <X11/Xutil.h>
+#include <X11/cursorfont.h>
+#include <X11/keysym.h>
#if defined(__linux)
#include <pty.h>
-#elif defined(__OpenBSD__) || defined(__NetBSD__)
+#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
#include <util.h>
#elif defined(__FreeBSD__) || defined(__DragonFly__)
#include <libutil.h>
@@ -31,13 +32,14 @@
#define USAGE \
"st-" VERSION ", (c) 2010 st engineers\n" \
- "usage: st [-t title] [-e cmd] [-v]\n"
+ "usage: st [-t title] [-c class] [-v] [-e cmd]\n"
/* Arbitrary sizes */
#define ESC_TITLE_SIZ 256
#define ESC_BUF_SIZ 256
#define ESC_ARG_SIZ 16
#define DRAW_BUF_SIZ 1024
+#define UTF_SIZ 4
#define SERRNO strerror(errno)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
@@ -61,8 +63,11 @@ enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
enum { SCREEN_UPDATE, SCREEN_REDRAW };
enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
+#undef B0
+enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
+
typedef struct {
- char c; /* character code */
+ char c[UTF_SIZ]; /* character code */
char mode; /* attribute flags */
int fg; /* foreground */
int bg; /* background */
@@ -106,7 +111,7 @@ typedef struct {
/* Purely graphic info */
typedef struct {
- Display* dis;
+ Display* dpy;
Colormap cmap;
Window win;
Pixmap buf;
@@ -130,9 +135,14 @@ typedef struct {
/* Drawing Context */
typedef struct {
unsigned long col[256];
- XFontStruct* font;
- XFontStruct* bfont;
GC gc;
+ struct {
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ XFontSet set;
+ } font, bfont;
} DC;
/* TODO: use better name for vars... */
@@ -142,6 +152,7 @@ typedef struct {
int ex, ey;
struct {int x, y;} b, e;
char *clip;
+ Atom xtarget;
} Selection;
#include "config.h"
@@ -167,14 +178,13 @@ static void tmoveto(int, int);
static void tnew(int, int);
static void tnewline(int);
static void tputtab(void);
-static void tputc(char);
-static void tputs(char*, int);
+static void tputc(char*);
static void treset(void);
-static void tresize(int, int);
+static int tresize(int, int);
static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tsetattr(int*, int);
-static void tsetchar(char);
+static void tsetchar(char*);
static void tsetscroll(int, int);
static void tswapscreen(void);
@@ -183,13 +193,14 @@ static void ttyread(void);
static void ttyresize(int, int);
static void ttywrite(const char *, size_t);
-static void xdraws(char *, Glyph, int, int, int);
+static void xdraws(char *, Glyph, int, int, int, int);
static void xhints(void);
static void xclear(int, int, int, int);
static void xdrawcursor(void);
static void xinit(void);
static void xloadcols(void);
static void xseturgency(int);
+static void xsetsel(char*);
static void xresize(int, int);
static void expose(XEvent *);
@@ -202,8 +213,18 @@ static void focus(XEvent *);
static void brelease(XEvent *);
static void bpress(XEvent *);
static void bmotion(XEvent *);
-static void selection_notify(XEvent *);
-static void selection_request(XEvent *);
+static void selnotify(XEvent *);
+static void selrequest(XEvent *);
+
+static void selinit(void);
+static inline int selected(int, int);
+static void selcopy(void);
+static void selpaste(void);
+
+static int utf8decode(char *, long *);
+static int utf8encode(long *, char *);
+static int utf8size(char *);
+static int isfullutf8(char *, int);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
@@ -216,8 +237,8 @@ static void (*handler[LASTEvent])(XEvent *) = {
[MotionNotify] = bmotion,
[ButtonPress] = bpress,
[ButtonRelease] = brelease,
- [SelectionNotify] = selection_notify,
- [SelectionRequest] = selection_request,
+ [SelectionNotify] = selnotify,
+ [SelectionRequest] = selrequest,
};
/* Globals */
@@ -228,17 +249,135 @@ static CSIEscape escseq;
static int cmdfd;
static pid_t pid;
static Selection sel;
-static char *opt_cmd = NULL;
+static char **opt_cmd = NULL;
static char *opt_title = NULL;
+static char *opt_class = NULL;
+
+int
+utf8decode(char *s, long *u) {
+ unsigned char c;
+ int i, n, rtn;
+
+ rtn = 1;
+ c = *s;
+ if(~c&B7) { /* 0xxxxxxx */
+ *u = c;
+ return rtn;
+ } else if((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
+ *u = c&(B4|B3|B2|B1|B0);
+ n = 1;
+ } else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
+ *u = c&(B3|B2|B1|B0);
+ n = 2;
+ } else if((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
+ *u = c&(B2|B1|B0);
+ n = 3;
+ } else
+ goto invalid;
+ for(i=n,++s; i>0; --i,++rtn,++s) {
+ c = *s;
+ if((c&(B7|B6)) != B7) /* 10xxxxxx */
+ goto invalid;
+ *u <<= 6;
+ *u |= c&(B5|B4|B3|B2|B1|B0);
+ }
+ if((n == 1 && *u < 0x80) ||
+ (n == 2 && *u < 0x800) ||
+ (n == 3 && *u < 0x10000) ||
+ (*u >= 0xD800 && *u <= 0xDFFF))
+ goto invalid;
+ return rtn;
+invalid:
+ *u = 0xFFFD;
+ return rtn;
+}
+
+int
+utf8encode(long *u, char *s) {
+ unsigned char *sp;
+ unsigned long uc;
+ int i, n;
+
+ sp = (unsigned char*) s;
+ uc = *u;
+ if(uc < 0x80) {
+ *sp = uc; /* 0xxxxxxx */
+ return 1;
+ } else if(*u < 0x800) {
+ *sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
+ n = 1;
+ } else if(uc < 0x10000) {
+ *sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
+ n = 2;
+ } else if(uc <= 0x10FFFF) {
+ *sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
+ n = 3;
+ } else {
+ goto invalid;
+ }
+ for(i=n,++sp; i>0; --i,++sp)
+ *sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
+ return n+1;
+invalid:
+ /* U+FFFD */
+ *s++ = '\xEF';
+ *s++ = '\xBF';
+ *s = '\xBD';
+ return 3;
+}
+
+/* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
+ UTF-8 otherwise return 0 */
+int
+isfullutf8(char *s, int b) {
+ unsigned char *c1, *c2, *c3;
+
+ c1 = (unsigned char *) s;
+ c2 = (unsigned char *) ++s;
+ c3 = (unsigned char *) ++s;
+ if(b < 1)
+ return 0;
+ else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
+ return 0;
+ else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
+ ((b == 1) ||
+ ((b == 2) && (*c2&(B7|B6)) == B7)))
+ return 0;
+ else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
+ ((b == 1) ||
+ ((b == 2) && (*c2&(B7|B6)) == B7) ||
+ ((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
+ return 0;
+ else
+ return 1;
+}
+
+int
+utf8size(char *s) {
+ unsigned char c = *s;
+
+ if (~c&B7)
+ return 1;
+ else if ((c&(B7|B6|B5)) == (B7|B6))
+ return 2;
+ else if ((c&(B7|B6|B5|B4)) == (B7|B6|B5))
+ return 3;
+ else
+ return 4;
+}
void
selinit(void) {
sel.mode = 0;
sel.bx = -1;
sel.clip = NULL;
+ sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
+ if(sel.xtarget == None)
+ sel.xtarget = XA_STRING;
}
-static inline int selected(int x, int y) {
+static inline int
+selected(int x, int y) {
if(sel.ey == y && sel.by == y) {
int bx = MIN(sel.bx, sel.ex);
int ex = MAX(sel.bx, sel.ex);
@@ -248,7 +387,8 @@ static inline int selected(int x, int y) {
|| (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
}
-static void getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
+void
+getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
if(b)
*b = e->xbutton.button;
@@ -260,72 +400,70 @@ static void getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
sel.e.y = MAX(sel.by, sel.ey);
}
-static void bpress(XEvent *e) {
+void
+bpress(XEvent *e) {
sel.mode = 1;
sel.ex = sel.bx = e->xbutton.x/xw.cw;
sel.ey = sel.by = e->xbutton.y/xw.ch;
}
-static char *getseltext() {
+void
+selcopy(void) {
char *str, *ptr;
- int ls, x, y, sz;
+ int x, y, sz, sl, ls = 0;
+
if(sel.bx == -1)
- return NULL;
- sz = (term.col+1) * (sel.e.y-sel.b.y+1);
- ptr = str = malloc(sz);
- for(y = 0; y < term.row; y++) {
- for(x = 0; x < term.col; x++)
- if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y)))
- *ptr = term.line[y][x].c, ptr++;
- if(ls)
- *ptr = '\n', ptr++;
+ str = NULL;
+ else {
+ sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
+ ptr = str = malloc(sz);
+ for(y = 0; y < term.row; y++) {
+ for(x = 0; x < term.col; x++)
+ if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
+ sl = utf8size(term.line[y][x].c);
+ memcpy(ptr, term.line[y][x].c, sl);
+ ptr += sl;
+ }
+ if(ls && y < sel.e.y)
+ *ptr++ = '\n';
+ }
+ *ptr = 0;
}
- *ptr = 0;
- return str;
+ xsetsel(str);
}
-static void selection_notify(XEvent *e) {
+void
+selnotify(XEvent *e) {
unsigned long nitems;
- unsigned long length;
- int format, res;
+ unsigned long ofs, rem;
+ int format;
unsigned char *data;
Atom type;
- res = XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, 0, 0, False,
- AnyPropertyType, &type, &format, &nitems, &length, &data);
- switch(res) {
- case BadAtom:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Invalid paste, XGetWindowProperty0");
+ ofs = 0;
+ do {
+ if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
+ False, AnyPropertyType, &type, &format,
+ &nitems, &rem, &data)) {
+ fprintf(stderr, "Clipboard allocation failed\n");
return;
- }
-
- res = XGetWindowProperty(xw.dis, xw.win, XA_PRIMARY, 0, length, False,
- AnyPropertyType, &type, &format, &nitems, &length, &data);
- switch(res) {
- case BadAtom:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Invalid paste, XGetWindowProperty0");
- return;
- }
-
- if(data) {
+ }
ttywrite((const char *) data, nitems * format / 8);
XFree(data);
- }
+ /* number of 32-bit chunks returned */
+ ofs += nitems * format / 32;
+ } while(rem > 0);
}
-static void selpaste() {
- XConvertSelection(xw.dis, XA_PRIMARY, XA_STRING, XA_PRIMARY, xw.win, CurrentTime);
+void
+selpaste() {
+ XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
}
-static void selection_request(XEvent *e)
-{
+void
+selrequest(XEvent *e) {
XSelectionRequestEvent *xsre;
XSelectionEvent xev;
- int res;
Atom xa_targets;
xsre = (XSelectionRequestEvent *) e;
@@ -337,80 +475,45 @@ static void selection_request(XEvent *e)
/* reject */
xev.property = None;
- xa_targets = XInternAtom(xw.dis, "TARGETS", 0);
+ xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
if(xsre->target == xa_targets) {
/* respond with the supported type */
- Atom string = XA_STRING;
- res = XChangeProperty(xsre->display, xsre->requestor, xsre->property, XA_ATOM, 32,
- PropModeReplace, (unsigned char *) &string, 1);
- switch(res) {
- case BadAlloc:
- case BadAtom:
- case BadMatch:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Error in selection_request, TARGETS");
- break;
- default:
- xev.property = xsre->property;
- }
+ Atom string = sel.xtarget;
+ XChangeProperty(xsre->display, xsre->requestor, xsre->property,
+ XA_ATOM, 32, PropModeReplace,
+ (unsigned char *) &string, 1);
+ xev.property = xsre->property;
} else if(xsre->target == XA_STRING) {
- res = XChangeProperty(xsre->display, xsre->requestor, xsre->property,
- xsre->target, 8, PropModeReplace, (unsigned char *) sel.clip,
- strlen(sel.clip));
- switch(res) {
- case BadAlloc:
- case BadAtom:
- case BadMatch:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Error in selection_request, XA_STRING");
- break;
- default:
- xev.property = xsre->property;
- }
+ XChangeProperty(xsre->display, xsre->requestor, xsre->property,
+ xsre->target, 8, PropModeReplace,
+ (unsigned char *) sel.clip, strlen(sel.clip));
+ xev.property = xsre->property;
}
/* all done, send a notification to the listener */
- res = XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev);
- switch(res) {
- case 0:
- case BadValue:
- case BadWindow:
- fprintf(stderr, "Error in selection_requested, XSendEvent");
- }
+ if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
+ fprintf(stderr, "Error sending SelectionNotify event\n");
}
-static void selcopy(char *str) {
+void
+xsetsel(char *str) {
/* register the selection for both the clipboard and the primary */
Atom clipboard;
- int res;
free(sel.clip);
sel.clip = str;
- res = XSetSelectionOwner(xw.dis, XA_PRIMARY, xw.win, CurrentTime);
- switch(res) {
- case BadAtom:
- case BadWindow:
- fprintf(stderr, "Invalid copy, XSetSelectionOwner");
- return;
- }
+ XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
- clipboard = XInternAtom(xw.dis, "CLIPBOARD", 0);
- res = XSetSelectionOwner(xw.dis, clipboard, xw.win, CurrentTime);
- switch(res) {
- case BadAtom:
- case BadWindow:
- fprintf(stderr, "Invalid copy, XSetSelectionOwner");
- return;
- }
+ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
+ XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
- XFlush(xw.dis);
+ XFlush(xw.dpy);
}
/* TODO: doubleclick to select word */
-static void brelease(XEvent *e) {
+void
+brelease(XEvent *e) {
int b;
sel.mode = 0;
getbuttoninfo(e, &b, &sel.ex, &sel.ey);
@@ -420,38 +523,21 @@ static void brelease(XEvent *e) {
selpaste();
} else {
if(b==1)
- selcopy(getseltext());
+ selcopy();
}
draw(1);
}
-static void bmotion(XEvent *e) {
+void
+bmotion(XEvent *e) {
if (sel.mode) {
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
- draw(1);
+ /* XXX: draw() can't keep up, disabled for now.
+ selection is visible on button release.
+ draw(1); */
}
}
-#ifdef DEBUG
-void
-tdump(void) {
- int row, col;
- Glyph c;
-
- for(row = 0; row < term.row; row++) {
- for(col = 0; col < term.col; col++) {
- if(col == term.c.x && row == term.c.y)
- putchar('#');
- else {
- c = term.line[row][col];
- putchar(c.state & GLYPH_SET ? c.c : '.');
- }
- }
- putchar('\n');
- }
-}
-#endif
-
void
die(const char *errstr, ...) {
va_list ap;
@@ -464,13 +550,14 @@ die(const char *errstr, ...) {
void
execsh(void) {
- char *args[] = {getenv("SHELL"), "-i", NULL};
- if(opt_cmd)
- args[0] = opt_cmd, args[1] = NULL;
- else
- DEFAULT(args[0], SHELL);
+ char **args;
+ char *envshell = getenv("SHELL");
+
+ DEFAULT(envshell, "sh");
putenv("TERM="TNAME);
+ args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
execvp(args[0], args);
+ exit(EXIT_FAILURE);
}
void
@@ -525,13 +612,31 @@ dump(char c) {
void
ttyread(void) {
- char buf[BUFSIZ];
+ static char buf[BUFSIZ];
+ static int buflen = 0;
+ char *ptr;
+ char s[UTF_SIZ];
+ int charsize; /* size of utf8 char in bytes */
+ long utf8c;
int ret;
- if((ret = read(cmdfd, buf, LEN(buf))) < 0)
+ /* append read bytes to unprocessed bytes */
+ if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
die("Couldn't read from shell: %s\n", SERRNO);
- else
- tputs(buf, ret);
+
+ /* process every complete utf8 char */
+ buflen += ret;
+ ptr = buf;
+ while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
+ charsize = utf8decode(ptr, &utf8c);
+ utf8encode(&utf8c, s);
+ tputc(s);
+ ptr += charsize;
+ buflen -= charsize;
+ }
+
+ /* keep any uncomplete utf8 char for the next call */
+ memmove(buf, ptr, buflen);
}
void
@@ -671,9 +776,9 @@ tmoveto(int x, int y) {
}
void
-tsetchar(char c) {
+tsetchar(char *c) {
term.line[term.c.y][term.c.x] = term.c.attr;
- term.line[term.c.y][term.c.x].c = c;
+ memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
term.line[term.c.y][term.c.x].state |= GLYPH_SET;
}
@@ -834,7 +939,7 @@ csihandle(void) {
switch(escseq.mode) {
default:
unknown:
- printf("erresc: unknown csi ");
+ fprintf(stderr, "erresc: unknown csi ");
csidump();
/* die(""); */
break;
@@ -883,10 +988,14 @@ csihandle(void) {
case 'J': /* ED -- Clear screen */
switch(escseq.arg[0]) {
case 0: /* below */
- tclearregion(term.c.x, term.c.y, term.col-1, term.row-1);
+ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
+ if(term.c.y < term.row-1)
+ tclearregion(0, term.c.y+1, term.col-1, term.row-1);
break;
case 1: /* above */
- tclearregion(0, 0, term.c.x, term.c.y);
+ if(term.c.y > 1)
+ tclearregion(0, 0, term.col-1, term.c.y-1);
+ tclearregion(0, term.c.y, term.c.x, term.c.y);
break;
case 2: /* all */
tclearregion(0, 0, term.col-1, term.row-1);
@@ -1070,30 +1179,31 @@ tputtab(void) {
}
void
-tputc(char c) {
+tputc(char *c) {
+ char ascii = *c;
if(term.esc & ESC_START) {
if(term.esc & ESC_CSI) {
- escseq.buf[escseq.len++] = c;
- if(BETWEEN(c, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
+ escseq.buf[escseq.len++] = ascii;
+ if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
term.esc = 0;
csiparse(), csihandle();
}
/* TODO: handle other OSC */
} else if(term.esc & ESC_OSC) {
- if(c == ';') {
+ if(ascii == ';') {
term.titlelen = 0;
term.esc = ESC_START | ESC_TITLE;
}
} else if(term.esc & ESC_TITLE) {
- if(c == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
+ if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
term.esc = 0;
term.title[term.titlelen] = '\0';
- XStoreName(xw.dis, xw.win, term.title);
+ XStoreName(xw.dpy, xw.win, term.title);
} else {
- term.title[term.titlelen++] = c;
+ term.title[term.titlelen++] = ascii;
}
} else if(term.esc & ESC_ALTCHARSET) {
- switch(c) {
+ switch(ascii) {
case '0': /* Line drawing crap */
term.c.attr.mode |= ATTR_GFX;
break;
@@ -1101,11 +1211,11 @@ tputc(char c) {
term.c.attr.mode &= ~ATTR_GFX;
break;
default:
- printf("esc unhandled charset: ESC ( %c\n", c);
+ fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
}
term.esc = 0;
} else {
- switch(c) {
+ switch(ascii) {
case '[':
term.esc |= ESC_CSI;
break;
@@ -1154,12 +1264,13 @@ tputc(char c) {
term.esc = 0;
break;
default:
- fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", c, isprint(c)?c:'.');
+ fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
+ (unsigned char) ascii, isprint(ascii)?ascii:'.');
term.esc = 0;
}
}
} else {
- switch(c) {
+ switch(ascii) {
case '\t':
tputtab();
break;
@@ -1196,13 +1307,7 @@ tputc(char c) {
}
}
-void
-tputs(char *s, int len) {
- for(; len > 0; len--)
- tputc(*s++);
-}
-
-void
+int
tresize(int col, int row) {
int i, x;
int minrow = MIN(row, term.row);
@@ -1210,7 +1315,7 @@ tresize(int col, int row) {
int slide = term.c.y - row + 1;
if(col < 1 || row < 1)
- return;
+ return 0;
/* free unneeded rows */
i = 0;
@@ -1256,24 +1361,47 @@ tresize(int col, int row) {
tmoveto(term.c.x, term.c.y);
/* reset scrolling region */
tsetscroll(0, row-1);
+ return (slide > 0);
}
void
xresize(int col, int row) {
+ Pixmap newbuf;
+ int oldw, oldh;
+
+ oldw = xw.bufw;
+ oldh = xw.bufh;
xw.bufw = MAX(1, col * xw.cw);
xw.bufh = MAX(1, row * xw.ch);
- XFreePixmap(xw.dis, xw.buf);
- xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+ newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
+ XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0);
+ XFreePixmap(xw.dpy, xw.buf);
+ XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
+ if(xw.bufw > oldw)
+ XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0,
+ xw.bufw-oldw, MIN(xw.bufh, oldh));
+ else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw))
+ XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER,
+ xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh),
+ False);
+ if(xw.bufh > oldh)
+ XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh,
+ xw.bufw, xw.bufh-oldh);
+ else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh))
+ XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh,
+ xw.w-2*BORDER, xw.h-xw.bufh-BORDER,
+ False);
+ xw.buf = newbuf;
}
void
xloadcols(void) {
int i, r, g, b;
XColor color;
- unsigned long white = WhitePixel(xw.dis, xw.scr);
+ unsigned long white = WhitePixel(xw.dpy, xw.scr);
for(i = 0; i < 16; i++) {
- if (!XAllocNamedColor(xw.dis, xw.cmap, colorname[i], &color, &color)) {
+ if (!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
} else
@@ -1287,7 +1415,7 @@ xloadcols(void) {
color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
- if (!XAllocColor(xw.dis, xw.cmap, &color)) {
+ if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color %d\n", i);
} else
@@ -1297,7 +1425,7 @@ xloadcols(void) {
for(r = 0; r < 24; r++, i++) {
color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
- if (!XAllocColor(xw.dis, xw.cmap, &color)) {
+ if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color %d\n", i);
} else
@@ -1307,8 +1435,8 @@ xloadcols(void) {
void
xclear(int x1, int y1, int x2, int y2) {
- XSetForeground(xw.dis, dc.gc, dc.col[DefaultBG]);
- XFillRectangle(xw.dis, xw.buf, dc.gc,
+ XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
+ XFillRectangle(xw.dpy, xw.buf, dc.gc,
x1 * xw.cw, y1 * xw.ch,
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
}
@@ -1316,7 +1444,7 @@ xclear(int x1, int y1, int x2, int y2) {
void
xhints(void)
{
- XClassHint class = {TNAME, TNAME};
+ XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
XWMHints wm = {.flags = InputHint, .input = 1};
XSizeHints size = {
.flags = PSize | PResizeInc | PBaseSize,
@@ -1327,27 +1455,74 @@ xhints(void)
.base_height = 2*BORDER,
.base_width = 2*BORDER,
};
- XSetWMProperties(xw.dis, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
+ XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
+}
+
+XFontSet
+xinitfont(char *fontstr)
+{
+ XFontSet set;
+ char *def, **missing;
+ int n;
+
+ missing = NULL;
+ set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def);
+ if(missing) {
+ while(n--)
+ fprintf(stderr, "st: missing fontset: %s\n", missing[n]);
+ XFreeStringList(missing);
+ }
+ return set;
+}
+
+void
+xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing)
+{
+ XFontStruct **xfonts;
+ char **font_names;
+ int i, n;
+
+ *ascent = *descent = *lbearing = *rbearing = 0;
+ n = XFontsOfFontSet(set, &xfonts, &font_names);
+ for(i = 0; i < n; i++) {
+ *ascent = MAX(*ascent, (*xfonts)->ascent);
+ *descent = MAX(*descent, (*xfonts)->descent);
+ *lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing);
+ *rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing);
+ xfonts++;
+ }
+}
+
+void
+initfonts(char *fontstr, char *bfontstr)
+{
+ if((dc.font.set = xinitfont(fontstr)) == NULL ||
+ (dc.bfont.set = xinitfont(bfontstr)) == NULL)
+ die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
+ xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
+ &dc.font.lbearing, &dc.font.rbearing);
+ xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
+ &dc.bfont.lbearing, &dc.bfont.rbearing);
}
void
xinit(void) {
XSetWindowAttributes attrs;
+ Cursor cursor;
- if(!(xw.dis = XOpenDisplay(NULL)))
+ if(!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
- xw.scr = XDefaultScreen(xw.dis);
+ xw.scr = XDefaultScreen(xw.dpy);
/* font */
- if(!(dc.font = XLoadQueryFont(xw.dis, FONT)) || !(dc.bfont = XLoadQueryFont(xw.dis, BOLDFONT)))
- die("Can't load font %s\n", dc.font ? BOLDFONT : FONT);
+ initfonts(FONT, BOLDFONT);
/* XXX: Assuming same size for bold font */
- xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
- xw.ch = dc.font->ascent + dc.font->descent;
+ xw.cw = dc.font.rbearing - dc.font.lbearing;
+ xw.ch = dc.font.ascent + dc.font.descent;
/* colors */
- xw.cmap = XDefaultColormap(xw.dis, xw.scr);
+ xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
xloadcols();
/* window - default size */
@@ -1364,33 +1539,40 @@ xinit(void) {
| PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
attrs.colormap = xw.cmap;
- xw.win = XCreateWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
- xw.w, xw.h, 0, XDefaultDepth(xw.dis, xw.scr), InputOutput,
- XDefaultVisual(xw.dis, xw.scr),
+ xw.win = XCreateWindow(xw.dpy, XRootWindow(xw.dpy, xw.scr), 0, 0,
+ xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
+ XDefaultVisual(xw.dpy, xw.scr),
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
| CWColormap,
&attrs);
- xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+ xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
/* input methods */
- xw.xim = XOpenIM(xw.dis, NULL, NULL, NULL);
+ xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
| XIMStatusNothing, XNClientWindow, xw.win,
XNFocusWindow, xw.win, NULL);
/* gc */
- dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
+ dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
- XMapWindow(xw.dis, xw.win);
+ /* white cursor, black outline */
+ cursor = XCreateFontCursor(xw.dpy, XC_xterm);
+ XDefineCursor(xw.dpy, xw.win, cursor);
+ XRecolorCursor(xw.dpy, cursor,
+ &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
+ &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
+
+ XMapWindow(xw.dpy, xw.win);
xhints();
- XStoreName(xw.dis, xw.win, opt_title ? opt_title : "st");
- XSync(xw.dis, 0);
+ XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
+ XSync(xw.dpy, 0);
}
void
-xdraws(char *s, Glyph base, int x, int y, int len) {
+xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
unsigned long xfg, xbg;
- int winx = x*xw.cw, winy = y*xw.ch + dc.font->ascent, width = len*xw.cw;
+ int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
int i;
if(base.mode & ATTR_REVERSE)
@@ -1398,46 +1580,50 @@ xdraws(char *s, Glyph base, int x, int y, int len) {
else
xfg = dc.col[base.fg], xbg = dc.col[base.bg];
- XSetBackground(xw.dis, dc.gc, xbg);
- XSetForeground(xw.dis, dc.gc, xfg);
-
- if(base.mode & ATTR_GFX)
- for(i = 0; i < len; i++) {
+ XSetBackground(xw.dpy, dc.gc, xbg);
+ XSetForeground(xw.dpy, dc.gc, xfg);
+
+ if(base.mode & ATTR_GFX) {
+ for(i = 0; i < bytelen; i++) {
char c = gfx[(unsigned int)s[i] % 256];
if(c)
s[i] = c;
else if(s[i] > 0x5f)
s[i] -= 0x5f;
}
+ }
- XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
- XDrawImageString(xw.dis, xw.buf, dc.gc, winx, winy, s, len);
+ XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
+ dc.gc, winx, winy, s, bytelen);
if(base.mode & ATTR_UNDERLINE)
- XDrawLine(xw.dis, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
+ XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
}
void
xdrawcursor(void) {
static int oldx = 0;
static int oldy = 0;
- Glyph g = {' ', ATTR_NULL, DefaultBG, DefaultCS, 0};
+ int sl;
+ Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
LIMIT(oldx, 0, term.col-1);
LIMIT(oldy, 0, term.row-1);
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
- g.c = term.line[term.c.y][term.c.x].c;
-
+ memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
+
/* remove the old cursor */
- if(term.line[oldy][oldx].state & GLYPH_SET)
- xdraws(&term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1);
- else
+ if(term.line[oldy][oldx].state & GLYPH_SET) {
+ sl = utf8size(term.line[oldy][oldx].c);
+ xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
+ } else
xclear(oldx, oldy, oldx, oldy);
/* draw the new one */
if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
- xdraws(&g.c, g, term.c.x, term.c.y, 1);
+ sl = utf8size(g.c);
+ xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
oldx = term.c.x, oldy = term.c.y;
}
}
@@ -1446,11 +1632,12 @@ xdrawcursor(void) {
/* basic drawing routines */
void
xdrawc(int x, int y, Glyph g) {
+ int sl = utf8size(g.c);
XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
- XSetBackground(xw.dis, dc.gc, dc.col[g.bg]);
- XSetForeground(xw.dis, dc.gc, dc.col[g.fg]);
- XSetFont(xw.dis, dc.gc, g.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
- XDrawImageString(xw.dis, xw.buf, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
+ XSetBackground(xw.dpy, dc.gc, dc.col[g.bg]);
+ XSetForeground(xw.dpy, dc.gc, dc.col[g.fg]);
+ XmbDrawImageString(xw.dpy, xw.buf, g.mode&ATTR_BOLD?dc.bfont.fs:dc.font.fs,
+ dc.gc, r.x, r.y+dc.font.ascent, g.c, sl);
}
void
@@ -1464,15 +1651,15 @@ draw(int dummy) {
xdrawc(x, y, term.line[y][x]);
xdrawcursor();
- XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
- XFlush(xw.dis);
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
+ XFlush(xw.dpy);
}
#else
/* optimized drawing routine */
void
draw(int redraw_all) {
- int i, x, y, ox;
+ int ic, ib, x, y, ox, sl;
Glyph base, new;
char buf[DRAW_BUF_SIZ];
@@ -1482,29 +1669,32 @@ draw(int redraw_all) {
xclear(0, 0, term.col-1, term.row-1);
for(y = 0; y < term.row; y++) {
base = term.line[y][0];
- i = ox = 0;
+ ic = ib = ox = 0;
for(x = 0; x < term.col; x++) {
new = term.line[y][x];
- if(sel.bx!=-1 && new.c && selected(x, y))
+ if(sel.bx!=-1 && *(new.c) && selected(x, y))
new.mode ^= ATTR_REVERSE;
- if(i > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
- i >= DRAW_BUF_SIZ)) {
- xdraws(buf, base, ox, y, i);
- i = 0;
+ if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
+ ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
+ xdraws(buf, base, ox, y, ic, ib);
+ ic = ib = 0;
}
if(new.state & GLYPH_SET) {
- if(i == 0) {
+ if(ib == 0) {
ox = x;
base = new;
}
- buf[i++] = new.c;
+ sl = utf8size(new.c);
+ memcpy(buf+ib, new.c, sl);
+ ib += sl;
+ ++ic;
}
}
- if(i > 0)
- xdraws(buf, base, ox, y, i);
+ if(ib > 0)
+ xdraws(buf, base, ox, y, ic, ib);
}
xdrawcursor();
- XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
}
#endif
@@ -1518,7 +1708,7 @@ expose(XEvent *ev) {
draw(SCREEN_REDRAW);
}
} else
- XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
e->width, e->height, e->x, e->y);
}
@@ -1539,9 +1729,9 @@ unmap(XEvent *ev) {
void
xseturgency(int add) {
- XWMHints *h = XGetWMHints(xw.dis, xw.win);
+ XWMHints *h = XGetWMHints(xw.dpy, xw.win);
h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
- XSetWMHints(xw.dis, xw.win, h);
+ XSetWMHints(xw.dpy, xw.win, h);
XFree(h);
}
@@ -1605,12 +1795,10 @@ kpress(XEvent *ev) {
/* 3. X lookup */
default:
if(len > 0) {
- buf[sizeof(buf)-1] = '\0';
if(meta && len == 1)
ttywrite("\033", 1);
ttywrite(buf, len);
- } else /* 4. nothing to send */
- fprintf(stderr, "errkey: %d\n", (int)ksym);
+ }
break;
}
}
@@ -1628,7 +1816,8 @@ resize(XEvent *e) {
row = (xw.h - 2*BORDER) / xw.ch;
if(col == term.col && row == term.row)
return;
- tresize(col, row);
+ if(tresize(col, row))
+ draw(SCREEN_REDRAW);
ttyresize(col, row);
xresize(col, row);
}
@@ -1637,7 +1826,7 @@ void
run(void) {
XEvent ev;
fd_set rfd;
- int xfd = XConnectionNumber(xw.dis);
+ int xfd = XConnectionNumber(xw.dpy);
for(;;) {
FD_ZERO(&rfd);
@@ -1652,8 +1841,8 @@ run(void) {
ttyread();
draw(SCREEN_UPDATE);
}
- while(XPending(xw.dis)) {
- XNextEvent(xw.dis, &ev);
+ while(XPending(xw.dpy)) {
+ XNextEvent(xw.dpy, &ev);
if (XFilterEvent(&ev, xw.win))
continue;
if(handler[ev.type])
@@ -1671,13 +1860,19 @@ main(int argc, char *argv[]) {
case 't':
if(++i < argc) opt_title = argv[i];
break;
+ case 'c':
+ if(++i < argc) opt_class = argv[i];
+ break;
case 'e':
- if(++i < argc) opt_cmd = argv[i];
+ if(++i < argc) opt_cmd = &argv[i];
break;
case 'v':
default:
die(USAGE);
}
+ /* -e eats every remaining arguments */
+ if(opt_cmd)
+ break;
}
setlocale(LC_CTYPE, "");
tnew(80, 24);