#include <limits.h>
#include <locale.h>
#include <stdarg.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/stat.h>
+#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
+#include <time.h>
#include <unistd.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
-#include <sys/time.h>
-#include <time.h>
-
#if defined(__linux)
#include <pty.h>
#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
#endif
#define USAGE \
- "st-" VERSION ", (c) 2010 st engineers\n" \
- "usage: st [-t title] [-c class] [-v] [-e cmd]\n"
+ "st " VERSION " (c) 2010-2012 st engineers\n" \
+ "usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
+
+/* XEMBED messages */
+#define XEMBED_FOCUS_IN 4
+#define XEMBED_FOCUS_OUT 5
/* Arbitrary sizes */
#define ESC_TITLE_SIZ 256
#define ESC_ARG_SIZ 16
#define DRAW_BUF_SIZ 1024
#define UTF_SIZ 4
+#define XK_NO_MOD UINT_MAX
+#define XK_ANY_MOD 0
+
+#define SELECT_TIMEOUT (20*1000) /* 20 ms */
+#define DRAW_TIMEOUT (20*1000) /* 20 ms */
#define SERRNO strerror(errno)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
#define IS_SET(flag) (term.mode & (flag))
-#define TIMEDIFFERENCE(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
+#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
+#define X2COL(x) (((x) - BORDER)/xw.cw)
+#define Y2ROW(y) (((y) - BORDER)/xw.ch)
/* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
- MODE_CRLF=16 };
+ MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
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 unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+
typedef struct {
char c[UTF_SIZ]; /* character code */
char mode; /* attribute flags */
int col; /* nb col */
Line* line; /* screen */
Line* alt; /* alternate screen */
+ bool* dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
Colormap cmap;
Window win;
Pixmap buf;
+ Atom xembed;
XIM xim;
XIC xic;
int scr;
int ch; /* char height */
int cw; /* char width */
char state; /* focus, redraw, visible */
+ struct timeval lastdraw;
} XWindow;
typedef struct {
KeySym k;
- unsigned int mask;
+ uint mask;
char s[ESC_BUF_SIZ];
} Key;
/* Drawing Context */
typedef struct {
- unsigned long col[256];
+ ulong col[256];
GC gc;
struct {
int ascent;
static void execsh(void);
static void sigchld(int);
static void run(void);
+static bool last_draw_too_old(void);
static void csidump(void);
static void csihandle(void);
static void tsetchar(char*);
static void tsetscroll(int, int);
static void tswapscreen(void);
+static void tfulldirt(void);
static void ttynew(void);
static void ttyread(void);
static void xdraws(char *, Glyph, int, int, int, int);
static void xhints(void);
static void xclear(int, int, int, int);
+static void xcopy(int, int, int, int);
static void xdrawcursor(void);
static void xinit(void);
static void xloadcols(void);
static void expose(XEvent *);
static void visibility(XEvent *);
static void unmap(XEvent *);
-static char* kmap(KeySym, unsigned int state);
+static char* kmap(KeySym, uint);
static void kpress(XEvent *);
+static void cmessage(XEvent *);
static void resize(XEvent *);
static void focus(XEvent *);
static void brelease(XEvent *);
static void selrequest(XEvent *);
static void selinit(void);
-static inline int selected(int, int);
+static inline bool selected(int, int);
static void selcopy(void);
static void selpaste();
+static void selscroll(int, int);
static int utf8decode(char *, long *);
static int utf8encode(long *, char *);
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
+ [ClientMessage] = cmessage,
[ConfigureNotify] = resize,
[VisibilityNotify] = visibility,
[UnmapNotify] = unmap,
static Selection sel;
static char **opt_cmd = NULL;
static char *opt_title = NULL;
+static char *opt_embed = NULL;
static char *opt_class = NULL;
int
utf8decode(char *s, long *u) {
- unsigned char c;
+ uchar c;
int i, n, rtn;
rtn = 1;
c = *s;
- if(~c&B7) { /* 0xxxxxxx */
+ if(~c & B7) { /* 0xxxxxxx */
*u = c;
return rtn;
- } else if((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
+ } 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 */
+ } 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);
+ } 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) {
+ for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
c = *s;
- if((c&(B7|B6)) != B7) /* 10xxxxxx */
+ if((c & (B7|B6)) != B7) /* 10xxxxxx */
goto invalid;
*u <<= 6;
- *u |= c&(B5|B4|B3|B2|B1|B0);
+ *u |= c & (B5|B4|B3|B2|B1|B0);
}
if((n == 1 && *u < 0x80) ||
(n == 2 && *u < 0x800) ||
int
utf8encode(long *u, char *s) {
- unsigned char *sp;
- unsigned long uc;
+ uchar *sp;
+ ulong uc;
int i, n;
- sp = (unsigned char*) s;
+ sp = (uchar*) s;
uc = *u;
if(uc < 0x80) {
*sp = uc; /* 0xxxxxxx */
UTF-8 otherwise return 0 */
int
isfullutf8(char *s, int b) {
- unsigned char *c1, *c2, *c3;
+ uchar *c1, *c2, *c3;
- c1 = (unsigned char *) s;
- c2 = (unsigned char *) ++s;
- c3 = (unsigned char *) ++s;
+ c1 = (uchar *) s;
+ c2 = (uchar *) ++s;
+ c3 = (uchar *) ++s;
if(b < 1)
return 0;
else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
int
utf8size(char *s) {
- unsigned char c = *s;
+ uchar c = *s;
if(~c&B7)
return 1;
sel.xtarget = XA_STRING;
}
-static inline int
+static inline bool
selected(int x, int y) {
if(sel.ey == y && sel.by == y) {
int bx = MIN(sel.bx, sel.ex);
void
getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
- if(b)
+ if(b)
*b = e->xbutton.button;
- *x = (e->xbutton.x - BORDER)/xw.cw;
- *y = (e->xbutton.y - BORDER)/xw.ch;
+ *x = X2COL(e->xbutton.x);
+ *y = Y2ROW(e->xbutton.y);
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
sel.b.y = MIN(sel.by, sel.ey);
sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
}
void
+mousereport(XEvent *e) {
+ int x = X2COL(e->xbutton.x);
+ int y = Y2ROW(e->xbutton.y);
+ int button = e->xbutton.button;
+ int state = e->xbutton.state;
+ char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
+ static int ob, ox, oy;
+
+ /* from urxvt */
+ if(e->xbutton.type == MotionNotify) {
+ if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
+ return;
+ button = ob + 32;
+ ox = x, oy = y;
+ } else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
+ button = 3;
+ } else {
+ button -= Button1;
+ if(button >= 3)
+ button += 64 - 3;
+ if(e->xbutton.type == ButtonPress) {
+ ob = button;
+ ox = x, oy = y;
+ }
+ }
+
+ buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
+ + (state & Mod4Mask ? 8 : 0)
+ + (state & ControlMask ? 16 : 0);
+
+ ttywrite(buf, sizeof(buf));
+}
+
+void
bpress(XEvent *e) {
- sel.mode = 1;
- sel.ex = sel.bx = (e->xbutton.x - BORDER)/xw.cw;
- sel.ey = sel.by = (e->xbutton.y - BORDER)/xw.ch;
+ if(IS_SET(MODE_MOUSE))
+ mousereport(e);
+ else if(e->xbutton.button == Button1) {
+ if(sel.bx != -1)
+ for(int i=sel.b.y; i<=sel.e.y; i++)
+ term.dirty[i] = 1;
+ sel.mode = 1;
+ sel.ex = sel.bx = X2COL(e->xbutton.x);
+ sel.ey = sel.by = Y2ROW(e->xbutton.y);
+ }
}
void
void
selnotify(XEvent *e) {
- unsigned long nitems;
- unsigned long ofs, rem;
+ ulong nitems, ofs, rem;
int format;
- unsigned char *data;
+ uchar *data;
Atom type;
ofs = 0;
Atom string = sel.xtarget;
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
XA_ATOM, 32, PropModeReplace,
- (unsigned char *) &string, 1);
+ (uchar *) &string, 1);
xev.property = xsre->property;
- } else if(xsre->target == sel.xtarget) {
+ } else if(xsre->target == sel.xtarget && sel.clip != NULL) {
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
xsre->target, 8, PropModeReplace,
- (unsigned char *) sel.clip, strlen(sel.clip));
+ (uchar *) sel.clip, strlen(sel.clip));
xev.property = xsre->property;
}
void
brelease(XEvent *e) {
- int b;
-
- sel.mode = 0;
- getbuttoninfo(e, &b, &sel.ex, &sel.ey);
- if(sel.bx == sel.ex && sel.by == sel.ey) {
- sel.bx = -1;
- if(b == 2)
- selpaste();
- else if(b == 1) {
+ if(IS_SET(MODE_MOUSE)) {
+ mousereport(e);
+ return;
+ }
+ if(e->xbutton.button == Button2)
+ selpaste();
+ else if(e->xbutton.button == Button1) {
+ sel.mode = 0;
+ getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
+ term.dirty[sel.ey] = 1;
+ if(sel.bx == sel.ex && sel.by == sel.ey) {
struct timeval now;
+ sel.bx = -1;
gettimeofday(&now, NULL);
- if(TIMEDIFFERENCE(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
+ if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
/* triple click on the line */
sel.b.x = sel.bx = 0;
sel.e.x = sel.ex = term.col;
sel.b.y = sel.e.y = sel.ey;
selcopy();
- } else if(TIMEDIFFERENCE(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
+ } else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
/* double click to select word */
sel.bx = sel.ex;
- while(term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
+ while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
sel.b.x = sel.bx;
- while(term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
+ while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
sel.e.x = sel.ex;
sel.b.y = sel.e.y = sel.ey;
selcopy();
}
- }
- } else if(b == 1)
- selcopy();
+ } else
+ selcopy();
+ }
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
gettimeofday(&sel.tclick1, NULL);
draw();
void
bmotion(XEvent *e) {
+ if(IS_SET(MODE_MOUSE)) {
+ mousereport(e);
+ return;
+ }
if(sel.mode) {
- int oldey = sel.ey,
- oldex = sel.ex;
+ int oldey = sel.ey, oldex = sel.ex;
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
if(oldey != sel.ey || oldex != sel.ex) {
int starty = MIN(oldey, sel.ey);
int endy = MAX(oldey, sel.ey);
- drawregion(0, (starty > 0 ? starty : 0), term.col, (sel.ey < term.row ? endy+1 : term.row));
+ for(int i = starty; i <= endy; i++)
+ term.dirty[i] = 1;
+ draw();
}
}
}
exit(EXIT_FAILURE);
}
-void
+void
sigchld(int a) {
int stat = 0;
if(waitpid(pid, &stat, 0) < 0)
void
ttyread(void) {
static char buf[BUFSIZ];
- static int buflen = 0;
+ static int buflen = 0;
char *ptr;
char s[UTF_SIZ];
int charsize; /* size of utf8 char in bytes */
}
void
+tfulldirt(void)
+{
+ int i;
+ for(i = 0; i < term.row; i++)
+ term.dirty[i] = 1;
+}
+
+void
tcursor(int mode) {
static TCursor c;
void
treset(void) {
term.c = (TCursor){{
- .mode = ATTR_NULL,
- .fg = DefaultFG,
+ .mode = ATTR_NULL,
+ .fg = DefaultFG,
.bg = DefaultBG
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
term.row = row, term.col = col;
term.line = malloc(term.row * sizeof(Line));
term.alt = malloc(term.row * sizeof(Line));
- for(row = 0 ; row < term.row; row++) {
+ term.dirty = malloc(term.row * sizeof(*term.dirty));
+
+ for(row = 0; row < term.row; row++) {
term.line[row] = malloc(term.col * sizeof(Glyph));
term.alt [row] = malloc(term.col * sizeof(Glyph));
+ term.dirty[row] = 0;
}
/* setup screen */
treset();
term.line = term.alt;
term.alt = tmp;
term.mode ^= MODE_ALTSCREEN;
+ tfulldirt();
}
void
temp = term.line[i];
term.line[i] = term.line[i-n];
term.line[i-n] = temp;
+
+ term.dirty[i] = 1;
+ term.dirty[i-n] = 1;
}
+
+ selscroll(orig, n);
}
void
tclearregion(0, orig, term.col-1, orig+n-1);
- for(i = orig; i <= term.bot-n; i++) {
+ for(i = orig; i <= term.bot-n; i++) {
temp = term.line[i];
- term.line[i] = term.line[i+n];
+ term.line[i] = term.line[i+n];
term.line[i+n] = temp;
+
+ term.dirty[i] = 1;
+ term.dirty[i+n] = 1;
+ }
+
+ selscroll(orig, -n);
+}
+
+void
+selscroll(int orig, int n) {
+ if(sel.bx == -1)
+ return;
+
+ if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
+ if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
+ sel.bx = -1;
+ return;
+ }
+ if(sel.by < term.top) {
+ sel.by = term.top;
+ sel.bx = 0;
+ }
+ if(sel.ey > term.bot) {
+ sel.ey = term.bot;
+ sel.ex = term.col;
+ }
+ sel.b.y = sel.by, sel.b.x = sel.bx;
+ sel.e.y = sel.ey, sel.e.x = sel.ex;
}
}
void
tsetchar(char *c) {
+ term.dirty[term.c.y] = 1;
term.line[term.c.y][term.c.x] = term.c.attr;
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
term.line[term.c.y][term.c.x].state |= GLYPH_SET;
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
- for(y = y1; y <= y2; y++)
+ for(y = y1; y <= y2; y++) {
+ term.dirty[y] = 1;
for(x = x1; x <= x2; x++)
term.line[y][x].state = 0;
+ }
}
void
int src = term.c.x + n;
int dst = term.c.x;
int size = term.col - src;
+
+ term.dirty[term.c.y] = 1;
if(src >= term.col) {
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
int dst = src + n;
int size = term.col - dst;
+ term.dirty[term.c.y] = 1;
+
if(dst >= term.col) {
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
return;
term.c.attr.bg = DefaultBG;
break;
case 1:
- term.c.attr.mode |= ATTR_BOLD;
+ term.c.attr.mode |= ATTR_BOLD;
break;
- case 4:
+ case 4:
term.c.attr.mode |= ATTR_UNDERLINE;
break;
- case 7:
- term.c.attr.mode |= ATTR_REVERSE;
+ case 7:
+ term.c.attr.mode |= ATTR_REVERSE;
break;
- case 22:
- term.c.attr.mode &= ~ATTR_BOLD;
+ case 22:
+ term.c.attr.mode &= ~ATTR_BOLD;
break;
- case 24:
+ case 24:
term.c.attr.mode &= ~ATTR_UNDERLINE;
break;
- case 27:
- term.c.attr.mode &= ~ATTR_REVERSE;
+ case 27:
+ term.c.attr.mode &= ~ATTR_REVERSE;
break;
case 38:
if(i + 2 < l && attr[i + 1] == 5) {
fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
}
else
- fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
+ fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
break;
case 39:
term.c.attr.fg = DefaultFG;
fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
}
else
- fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
+ fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
break;
case 49:
term.c.attr.bg = DefaultBG;
term.c.attr.fg = attr[i] - 90 + 8;
else if(BETWEEN(attr[i], 100, 107))
term.c.attr.fg = attr[i] - 100 + 8;
- else
+ else
fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
break;
b = temp;
}
term.top = t;
- term.bot = b;
+ term.bot = b;
}
void
break;
/* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
case 'J': /* ED -- Clear screen */
+ sel.bx = -1;
switch(escseq.arg[0]) {
case 0: /* below */
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
case 1:
term.mode &= ~MODE_APPKEYPAD;
break;
- case 5: /* TODO: DECSCNM -- Remove reverse video */
+ case 5: /* DECSCNM -- Remove reverse video */
+ if(IS_SET(MODE_REVERSE)) {
+ term.mode &= ~MODE_REVERSE;
+ draw();
+ }
break;
case 7:
term.mode &= ~MODE_WRAP;
case 25:
term.c.state |= CURSOR_HIDE;
break;
+ case 1000: /* disable X11 xterm mouse reporting */
+ term.mode &= ~MODE_MOUSEBTN;
+ break;
+ case 1002:
+ term.mode &= ~MODE_MOUSEMOTION;
+ break;
case 1049: /* = 1047 and 1048 */
+ case 47:
case 1047:
if(IS_SET(MODE_ALTSCREEN)) {
tclearregion(0, 0, term.col-1, term.row-1);
tswapscreen();
}
- if(escseq.arg[0] == 1047)
+ if(escseq.arg[0] != 1049)
break;
case 1048:
tcursor(CURSOR_LOAD);
term.mode |= MODE_APPKEYPAD;
break;
case 5: /* DECSCNM -- Reverve video */
- /* TODO: set REVERSE on the whole screen (f) */
+ if(!IS_SET(MODE_REVERSE)) {
+ term.mode |= MODE_REVERSE;
+ draw();
+ }
break;
case 7:
term.mode |= MODE_WRAP;
case 25:
term.c.state &= ~CURSOR_HIDE;
break;
+ case 1000: /* 1000,1002: enable xterm mouse report */
+ term.mode |= MODE_MOUSEBTN;
+ break;
+ case 1002:
+ term.mode |= MODE_MOUSEMOTION;
+ break;
case 1049: /* = 1047 and 1048 */
+ case 47:
case 1047:
if(IS_SET(MODE_ALTSCREEN))
tclearregion(0, 0, term.col-1, term.row-1);
else
tswapscreen();
- if(escseq.arg[0] == 1047)
+ if(escseq.arg[0] != 1049)
break;
case 1048:
tcursor(CURSOR_SAVE);
}
void
-csidump(void) {
+csidump(void) {
int i;
printf("ESC [ %s", escseq.priv ? "? " : "");
if(escseq.narg)
csiparse(), csihandle();
}
/* TODO: handle other OSC */
- } else if(term.esc & ESC_OSC) {
+ } else if(term.esc & ESC_OSC) {
if(ascii == ';') {
term.titlelen = 0;
term.esc = ESC_START | ESC_TITLE;
break;
default:
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
- (unsigned char) ascii, isprint(ascii)?ascii:'.');
+ (uchar) ascii, isprint(ascii)?ascii:'.');
term.esc = 0;
}
}
} else {
+ if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
+ sel.bx = -1;
switch(ascii) {
case '\t':
tputtab();
/* resize to new height */
term.line = realloc(term.line, row * sizeof(Line));
term.alt = realloc(term.alt, row * sizeof(Line));
+ term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
/* resize each row to new width, zero-pad if needed */
for(i = 0; i < minrow; i++) {
+ term.dirty[i] = 1;
term.line[i] = realloc(term.line[i], col * sizeof(Glyph));
term.alt[i] = realloc(term.alt[i], col * sizeof(Glyph));
for(x = mincol; x < col; x++) {
/* allocate any new rows */
for(/* i == minrow */; i < row; i++) {
+ term.dirty[i] = 1;
term.line[i] = calloc(col, sizeof(Glyph));
term.alt [i] = calloc(col, sizeof(Glyph));
}
tmoveto(term.c.x, term.c.y);
/* reset scrolling region */
tsetscroll(0, row-1);
+
return (slide > 0);
}
xloadcols(void) {
int i, r, g, b;
XColor color;
- unsigned long white = WhitePixel(xw.dpy, xw.scr);
+ ulong white = WhitePixel(xw.dpy, xw.scr);
- for(i = 0; i < 16; i++) {
+ for(i = 0; i < LEN(colorname); i++) {
if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
void
xclear(int x1, int y1, int x2, int y2) {
- XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]);
+ XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
XFillRectangle(xw.dpy, xw.buf, dc.gc,
x1 * xw.cw, y1 * xw.ch,
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
xinit(void) {
XSetWindowAttributes attrs;
Cursor cursor;
+ Window parent;
if(!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
initfonts(FONT, BOLDFONT);
/* XXX: Assuming same size for bold font */
- xw.cw = dc.font.rbearing - dc.font.lbearing;
+ xw.cw = dc.font.rbearing - dc.font.lbearing;
xw.ch = dc.font.ascent + dc.font.descent;
/* colors */
xloadcols();
/* window - default size */
- xw.bufh = 24 * xw.ch;
- xw.bufw = 80 * xw.cw;
+ xw.bufh = term.row * xw.ch;
+ xw.bufw = term.col * xw.cw;
xw.h = xw.bufh + 2*BORDER;
xw.w = xw.bufw + 2*BORDER;
attrs.bit_gravity = NorthWestGravity;
attrs.event_mask = FocusChangeMask | KeyPressMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
- | PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
+ | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
+ | EnterWindowMask | LeaveWindowMask;
attrs.colormap = xw.cmap;
- xw.win = XCreateWindow(xw.dpy, XRootWindow(xw.dpy, xw.scr), 0, 0,
+ parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
+ xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
XDefaultVisual(xw.dpy, xw.scr),
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
/* input methods */
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
- xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
- | XIMStatusNothing, XNClientWindow, xw.win,
+ xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
+ | XIMStatusNothing, XNClientWindow, xw.win,
XNFocusWindow, xw.win, NULL);
/* gc */
dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
/* white cursor, black outline */
cursor = XCreateFontCursor(xw.dpy, XC_xterm);
XDefineCursor(xw.dpy, xw.win, cursor);
- XRecolorCursor(xw.dpy, cursor,
+ XRecolorCursor(xw.dpy, cursor,
&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
+ xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
+
+ XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
XMapWindow(xw.dpy, xw.win);
xhints();
- 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 charlen, int bytelen) {
- unsigned long xfg, xbg;
+ ulong xfg = dc.col[base.fg], xbg = dc.col[base.bg], temp;
int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
int i;
+
+ /* only switch default fg/bg if term is in RV mode */
+ if(IS_SET(MODE_REVERSE)) {
+ if(base.fg == DefaultFG)
+ xfg = dc.col[DefaultBG];
+ if(base.bg == DefaultBG)
+ xbg = dc.col[DefaultFG];
+ }
if(base.mode & ATTR_REVERSE)
- xfg = dc.col[base.bg], xbg = dc.col[base.fg];
- else
- xfg = dc.col[base.fg], xbg = dc.col[base.bg];
+ temp = xfg, xfg = xbg, xbg = temp;
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];
+ char c = gfx[(uint)s[i] % 256];
if(c)
s[i] = c;
else if(s[i] > 0x5f)
}
XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
- dc.gc, winx, winy, s, bytelen);
+ dc.gc, winx, winy, s, bytelen);
if(base.mode & ATTR_UNDERLINE)
XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
}
+/* copy buffer pixmap to screen pixmap */
+void
+xcopy(int x, int y, int cols, int rows) {
+ int src_x = x*xw.cw, src_y = y*xw.ch, src_w = cols*xw.cw, src_h = rows*xw.ch;
+ int dst_x = BORDER+src_x, dst_y = BORDER+src_y;
+ XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, src_x, src_y, src_w, src_h, dst_x, dst_y);
+}
+
void
xdrawcursor(void) {
static int oldx = 0;
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
} else
xclear(oldx, oldy, oldx, oldy);
-
+
+ xcopy(oldx, oldy, 1, 1);
+
/* draw the new one */
if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
sl = utf8size(g.c);
+ if(IS_SET(MODE_REVERSE))
+ g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
oldx = term.c.x, oldy = term.c.y;
}
+
+ xcopy(term.c.x, term.c.y, 1, 1);
}
-void
+void
draw() {
drawregion(0, 0, term.col, term.row);
+ gettimeofday(&xw.lastdraw, NULL);
}
void
if(!(xw.state & WIN_VISIBLE))
return;
- xclear(x1, y1, x2-1, y2-1);
for(y = y1; y < y2; y++) {
+ if(!term.dirty[y])
+ continue;
+ xclear(0, y, term.col, y);
+ term.dirty[y] = 0;
base = term.line[y][0];
ic = ib = ox = 0;
for(x = x1; x < x2; x++) {
if(sel.bx != -1 && *(new.c) && selected(x, y))
new.mode ^= ATTR_REVERSE;
if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
- ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
+ ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
xdraws(buf, base, ox, y, ic, ib);
ic = ib = 0;
}
}
if(ib > 0)
xdraws(buf, base, ox, y, ic, ib);
+ xcopy(0, y, term.col, 1);
}
xdrawcursor();
- XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
}
void
if(xw.state & WIN_REDRAW) {
if(!e->count) {
xw.state &= ~WIN_REDRAW;
- draw();
+ xcopy(0, 0, term.col, term.row);
}
} else
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
}
char*
-kmap(KeySym k, unsigned int state) {
+kmap(KeySym k, uint state) {
int i;
- for(i = 0; i < LEN(key); i++)
- if(key[i].k == k && (key[i].mask == 0 || key[i].mask & state))
+ state &= ~Mod2Mask;
+ for(i = 0; i < LEN(key); i++) {
+ uint mask = key[i].mask;
+ if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
return (char*)key[i].s;
+ }
return NULL;
}
}
void
+cmessage(XEvent *e) {
+ /* See xembed specs
+ http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
+ if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
+ if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
+ xw.state |= WIN_FOCUSED;
+ xseturgency(0);
+ } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
+ xw.state &= ~WIN_FOCUSED;
+ }
+ draw();
+ }
+}
+
+void
resize(XEvent *e) {
int col, row;
xresize(col, row);
}
+bool
+last_draw_too_old(void) {
+ struct timeval now;
+ gettimeofday(&now, NULL);
+ return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000;
+}
+
void
run(void) {
XEvent ev;
fd_set rfd;
int xfd = XConnectionNumber(xw.dpy);
-
+ struct timeval timeout = {0};
+ bool stuff_to_print = 0;
+
for(;;) {
FD_ZERO(&rfd);
FD_SET(cmdfd, &rfd);
FD_SET(xfd, &rfd);
- if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, NULL) < 0) {
+ timeout.tv_sec = 0;
+ timeout.tv_usec = SELECT_TIMEOUT;
+ if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
if(errno == EINTR)
continue;
die("select failed: %s\n", SERRNO);
}
if(FD_ISSET(cmdfd, &rfd)) {
ttyread();
- draw();
+ stuff_to_print = 1;
+ }
+
+ if(stuff_to_print && last_draw_too_old()) {
+ stuff_to_print = 0;
+ draw();
}
+
while(XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev);
if(XFilterEvent(&ev, xw.win))
case 'c':
if(++i < argc) opt_class = argv[i];
break;
+ case 'w':
+ if(++i < argc) opt_embed = argv[i];
+ break;
case 'e':
+ /* eat every remaining arguments */
if(++i < argc) opt_cmd = &argv[i];
- break;
+ goto run;
case 'v':
default:
die(USAGE);
}
- /* -e eats every remaining arguments */
- if(opt_cmd)
- break;
}
+
+ run:
setlocale(LC_CTYPE, "");
tnew(80, 24);
ttynew();
Got questions, comments, patches, etc.? Contact Jason Woofenden