X-Git-Url: https://git.xinqibao.xyz/st.git/blobdiff_plain/b11e22df7d965fb5dff0954623e55093b50d3a62..74d6abfee5a1455c7c126d6b78760efd65d9d7c3:/st.c?ds=sidebyside
diff --git a/st.c b/st.c
index abaa7bf..9760b6c 100644
--- a/st.c
+++ b/st.c
@@ -24,6 +24,10 @@
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
+#include <X11/extensions/Xdbe.h>
+#include <X11/Xft/Xft.h>
+#define Glyph Glyph_
+#define Font Font_
#if defined(__linux)
#include <pty.h>
@@ -35,23 +39,24 @@
#define USAGE \
"st " VERSION " (c) 2010-2012 st engineers\n" \
- "usage: st [-t title] [-c class] [-w windowid] [-v] [-e command...]\n"
+ "usage: st [-t title] [-c class] [-g geometry]" \
+ " [-w windowid] [-v] [-f file] [-e command...]\n"
/* XEMBED messages */
#define XEMBED_FOCUS_IN 4
#define XEMBED_FOCUS_OUT 5
/* Arbitrary sizes */
-#define ESC_TITLE_SIZ 256
#define ESC_BUF_SIZ 256
#define ESC_ARG_SIZ 16
-#define DRAW_BUF_SIZ 1024
+#define STR_BUF_SIZ 256
+#define STR_ARG_SIZ 16
+#define DRAW_BUF_SIZ 20*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 REDRAW_TIMEOUT (80*1000) /* 80 ms */
#define SERRNO strerror(errno)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
@@ -66,30 +71,78 @@
#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_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
- CURSOR_SAVE, CURSOR_LOAD };
-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_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 };
+enum glyph_attribute {
+ ATTR_NULL = 0,
+ ATTR_REVERSE = 1,
+ ATTR_UNDERLINE = 2,
+ ATTR_BOLD = 4,
+ ATTR_GFX = 8,
+ ATTR_ITALIC = 16,
+ ATTR_BLINK = 32,
+};
+
+enum cursor_movement {
+ CURSOR_UP,
+ CURSOR_DOWN,
+ CURSOR_LEFT,
+ CURSOR_RIGHT,
+ CURSOR_SAVE,
+ CURSOR_LOAD
+};
+
+enum cursor_state {
+ CURSOR_DEFAULT = 0,
+ CURSOR_HIDE = 1,
+ CURSOR_WRAPNEXT = 2
+};
+
+enum glyph_state {
+ GLYPH_SET = 1,
+ GLYPH_DIRTY = 2
+};
+
+enum term_mode {
+ MODE_WRAP = 1,
+ MODE_INSERT = 2,
+ MODE_APPKEYPAD = 4,
+ MODE_ALTSCREEN = 8,
+ MODE_CRLF = 16,
+ MODE_MOUSEBTN = 32,
+ MODE_MOUSEMOTION = 64,
+ MODE_MOUSE = 32|64,
+ MODE_REVERSE = 128,
+ MODE_KBDLOCK = 256
+};
+
+enum escape_state {
+ ESC_START = 1,
+ ESC_CSI = 2,
+ ESC_STR = 4, /* DSC, OSC, PM, APC */
+ ESC_ALTCHARSET = 8,
+ ESC_STR_END = 16, /* a final string was encountered */
+};
+
+enum window_state {
+ WIN_VISIBLE = 1,
+ WIN_REDRAW = 2,
+ WIN_FOCUSED = 4
+};
+/* bit macro */
#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 unsigned short ushort;
typedef struct {
char c[UTF_SIZ]; /* character code */
- char mode; /* attribute flags */
- int fg; /* foreground */
- int bg; /* background */
- char state; /* state flags */
+ uchar mode; /* attribute flags */
+ ushort fg; /* foreground */
+ ushort bg; /* background */
+ uchar state; /* state flags */
} Glyph;
typedef Glyph* Line;
@@ -105,27 +158,36 @@ typedef struct {
/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
typedef struct {
char buf[ESC_BUF_SIZ]; /* raw string */
- int len; /* raw string length */
+ int len; /* raw string length */
char priv;
int arg[ESC_ARG_SIZ];
- int narg; /* nb of args */
+ int narg; /* nb of args */
char mode;
} CSIEscape;
+/* STR Escape sequence structs */
+/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
+typedef struct {
+ char type; /* ESC type ... */
+ char buf[STR_BUF_SIZ]; /* raw string */
+ int len; /* raw string length */
+ char *args[STR_ARG_SIZ];
+ int narg; /* nb of args */
+} STREscape;
+
/* Internal representation of the screen */
typedef struct {
int row; /* nb row */
int col; /* nb col */
Line* line; /* screen */
Line* alt; /* alternate screen */
- bool* dirty; /* dirtyness of lines */
+ bool* dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */
int esc; /* escape state flags */
- char title[ESC_TITLE_SIZ];
- int titlelen;
+ bool *tabs;
} Term;
/* Purely graphic info */
@@ -133,19 +195,21 @@ typedef struct {
Display* dpy;
Colormap cmap;
Window win;
- Pixmap buf;
+ XdbeBackBuffer buf;
Atom xembed;
XIM xim;
XIC xic;
+ XftDraw *xft_draw;
+ Visual *vis;
int scr;
+ bool isfixed; /* is fixed geometry? */
+ int fx, fy, fw, fh; /* fixed geometry */
+ int tw, th; /* tty width and height */
int w; /* window width */
int h; /* window height */
- int bufw; /* pixmap width */
- int bufh; /* pixmap height */
int ch; /* char height */
int cw; /* char width */
char state; /* focus, redraw, visible */
- struct timeval lastdraw;
} XWindow;
typedef struct {
@@ -154,19 +218,6 @@ typedef struct {
char s[ESC_BUF_SIZ];
} Key;
-/* Drawing Context */
-typedef struct {
- ulong col[256];
- GC gc;
- struct {
- int ascent;
- int descent;
- short lbearing;
- short rbearing;
- XFontSet set;
- } font, bfont;
-} DC;
-
/* TODO: use better name for vars... */
typedef struct {
int mode;
@@ -175,24 +226,47 @@ typedef struct {
struct {int x, y;} b, e;
char *clip;
Atom xtarget;
+ bool alt;
struct timeval tclick1;
struct timeval tclick2;
} Selection;
#include "config.h"
+/* Font structure */
+typedef struct {
+ int ascent;
+ int descent;
+ short lbearing;
+ short rbearing;
+ XFontSet set;
+ XftFont* xft_set;
+} Font;
+
+/* Drawing Context */
+typedef struct {
+ ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+ XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
+ GC gc;
+ Font font, bfont, ifont, ibfont;
+} DC;
+
static void die(const char*, ...);
static void draw(void);
+static void redraw(void);
static void drawregion(int, int, int, int);
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 csiparse(void);
static void csireset(void);
+static void strdump(void);
+static void strhandle(void);
+static void strparse(void);
+static void strreset(void);
static void tclearregion(int, int, int, int);
static void tcursor(int);
@@ -203,7 +277,7 @@ static void tinsertblankline(int);
static void tmoveto(int, int);
static void tnew(int, int);
static void tnewline(int);
-static void tputtab(void);
+static void tputtab(bool);
static void tputc(char*);
static void treset(void);
static int tresize(int, int);
@@ -213,20 +287,22 @@ static void tsetattr(int*, int);
static void tsetchar(char*);
static void tsetscroll(int, int);
static void tswapscreen(void);
+static void tsetdirt(int, int);
+static void tsetmode(bool, bool, int *, int);
static void tfulldirt(void);
static void ttynew(void);
static void ttyread(void);
-static void ttyresize(int, int);
+static void ttyresize(void);
static void ttywrite(const char *, size_t);
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 xresettitle(void);
static void xseturgency(int);
static void xsetsel(char*);
static void xresize(int, int);
@@ -243,12 +319,13 @@ static void brelease(XEvent *);
static void bpress(XEvent *);
static void bmotion(XEvent *);
static void selnotify(XEvent *);
+static void selclear(XEvent *);
static void selrequest(XEvent *);
static void selinit(void);
static inline bool selected(int, int);
static void selcopy(void);
-static void selpaste();
+static void selpaste(void);
static void selscroll(int, int);
static int utf8decode(char *, long *);
@@ -256,6 +333,10 @@ static int utf8encode(long *, char *);
static int utf8size(char *);
static int isfullutf8(char *, int);
+static void *xmalloc(size_t);
+static void *xrealloc(void *, size_t);
+static void *xcalloc(size_t nmemb, size_t size);
+
static void (*handler[LASTEvent])(XEvent *) = {
[KeyPress] = kpress,
[ClientMessage] = cmessage,
@@ -268,6 +349,7 @@ static void (*handler[LASTEvent])(XEvent *) = {
[MotionNotify] = bmotion,
[ButtonPress] = bpress,
[ButtonRelease] = brelease,
+ [SelectionClear] = selclear,
[SelectionNotify] = selnotify,
[SelectionRequest] = selrequest,
};
@@ -276,15 +358,41 @@ static void (*handler[LASTEvent])(XEvent *) = {
static DC dc;
static XWindow xw;
static Term term;
-static CSIEscape escseq;
+static CSIEscape csiescseq;
+static STREscape strescseq;
static int cmdfd;
static pid_t pid;
static Selection sel;
+static int iofd = -1;
static char **opt_cmd = NULL;
+static char *opt_io = NULL;
static char *opt_title = NULL;
static char *opt_embed = NULL;
static char *opt_class = NULL;
+void *
+xmalloc(size_t len) {
+ void *p = malloc(len);
+ if(!p)
+ die("Out of memory\n");
+ return p;
+}
+
+void *
+xrealloc(void *p, size_t len) {
+ if((p = realloc(p, len)) == NULL)
+ die("Out of memory\n");
+ return p;
+}
+
+void *
+xcalloc(size_t nmemb, size_t size) {
+ void *p = calloc(nmemb, size);
+ if(!p)
+ die("Out of memory\n");
+ return p;
+}
+
int
utf8decode(char *s, long *u) {
uchar c;
@@ -400,8 +508,8 @@ utf8size(char *s) {
void
selinit(void) {
- sel.tclick1.tv_sec = 0;
- sel.tclick1.tv_usec = 0;
+ memset(&sel.tclick1, 0, sizeof(sel.tclick1));
+ memset(&sel.tclick2, 0, sizeof(sel.tclick2));
sel.mode = 0;
sel.bx = -1;
sel.clip = NULL;
@@ -442,7 +550,7 @@ mousereport(XEvent *e) {
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))
@@ -460,11 +568,11 @@ mousereport(XEvent *e) {
ox = x, oy = y;
}
}
-
+
buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
+ (state & Mod4Mask ? 8 : 0)
+ (state & ControlMask ? 16 : 0);
-
+
ttywrite(buf, sizeof(buf));
}
@@ -473,9 +581,11 @@ bpress(XEvent *e) {
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;
+ if(sel.bx != -1) {
+ sel.bx = -1;
+ tsetdirt(sel.b.y, sel.e.y);
+ draw();
+ }
sel.mode = 1;
sel.ex = sel.bx = X2COL(e->xbutton.x);
sel.ey = sel.by = Y2ROW(e->xbutton.y);
@@ -485,25 +595,36 @@ bpress(XEvent *e) {
void
selcopy(void) {
char *str, *ptr;
- int x, y, sz, sl, ls = 0;
+ int x, y, bufsize, is_selected = 0;
if(sel.bx == -1)
str = NULL;
+
else {
- sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
- ptr = str = malloc(sz);
+ bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
+ ptr = str = xmalloc(bufsize);
+
+ /* append every set & selected glyph to the selection */
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)
+ for(x = 0; x < term.col; x++) {
+ int size;
+ char *p;
+ Glyph *gp = &term.line[y][x];
+
+ if(!(is_selected = selected(x, y)))
+ continue;
+ p = (gp->state & GLYPH_SET) ? gp->c : " ";
+ size = utf8size(p);
+ memcpy(ptr, p, size);
+ ptr += size;
+ }
+ /* \n at the end of every selected line except for the last one */
+ if(is_selected && y < sel.e.y)
*ptr++ = '\n';
}
*ptr = 0;
}
+ sel.alt = IS_SET(MODE_ALTSCREEN);
xsetsel(str);
}
@@ -534,6 +655,13 @@ selpaste() {
XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
}
+void selclear(XEvent *e) {
+ if(sel.bx == -1)
+ return;
+ sel.bx = -1;
+ tsetdirt(sel.b.y, sel.e.y);
+}
+
void
selrequest(XEvent *e) {
XSelectionRequestEvent *xsre;
@@ -581,8 +709,6 @@ xsetsel(char *str) {
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
-
- XFlush(xw.dpy);
}
void
@@ -625,7 +751,6 @@ brelease(XEvent *e) {
}
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
gettimeofday(&sel.tclick1, NULL);
- draw();
}
void
@@ -641,9 +766,7 @@ bmotion(XEvent *e) {
if(oldey != sel.ey || oldex != sel.ex) {
int starty = MIN(oldey, sel.ey);
int endy = MAX(oldey, sel.ey);
- for(int i = starty; i <= endy; i++)
- term.dirty[i] = 1;
- draw();
+ tsetdirt(starty, endy);
}
}
}
@@ -663,7 +786,18 @@ execsh(void) {
char **args;
char *envshell = getenv("SHELL");
- DEFAULT(envshell, "sh");
+ unsetenv("COLUMNS");
+ unsetenv("LINES");
+ unsetenv("TERMCAP");
+
+ signal(SIGCHLD, SIG_DFL);
+ signal(SIGHUP, SIG_DFL);
+ signal(SIGINT, SIG_DFL);
+ signal(SIGQUIT, SIG_DFL);
+ signal(SIGTERM, SIG_DFL);
+ signal(SIGALRM, SIG_DFL);
+
+ DEFAULT(envshell, SHELL);
putenv("TERM="TNAME);
args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
execvp(args[0], args);
@@ -684,7 +818,7 @@ sigchld(int a) {
void
ttynew(void) {
int m, s;
-
+
/* seems to work fine on linux, openbsd and freebsd */
struct winsize w = {term.row, term.col, 0, 0};
if(openpty(&m, &s, NULL, NULL, &w) < 0)
@@ -709,6 +843,16 @@ ttynew(void) {
close(s);
cmdfd = m;
signal(SIGCHLD, sigchld);
+ if(opt_io) {
+ if(!strcmp(opt_io, "-")) {
+ iofd = STDOUT_FILENO;
+ } else {
+ if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) {
+ fprintf(stderr, "Error opening %s:%s\n",
+ opt_io, strerror(errno));
+ }
+ }
+ }
}
}
@@ -756,24 +900,35 @@ ttywrite(const char *s, size_t n) {
}
void
-ttyresize(int x, int y) {
+ttyresize(void) {
struct winsize w;
w.ws_row = term.row;
w.ws_col = term.col;
- w.ws_xpixel = w.ws_ypixel = 0;
+ w.ws_xpixel = xw.tw;
+ w.ws_ypixel = xw.th;
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
}
void
-tfulldirt(void)
+tsetdirt(int top, int bot)
{
int i;
- for(i = 0; i < term.row; i++)
+
+ LIMIT(top, 0, term.row-1);
+ LIMIT(bot, 0, term.row-1);
+
+ for(i = top; i <= bot; i++)
term.dirty[i] = 1;
}
+void
+tfulldirt(void)
+{
+ tsetdirt(0, term.row-1);
+}
+
void
tcursor(int mode) {
static TCursor c;
@@ -786,14 +941,19 @@ tcursor(int mode) {
void
treset(void) {
+ uint i;
term.c = (TCursor){{
.mode = ATTR_NULL,
.fg = DefaultFG,
.bg = DefaultBG
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
-
+
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ for(i = TAB; i < term.col; i += TAB)
+ term.tabs[i] = 1;
term.top = 0, term.bot = term.row - 1;
term.mode = MODE_WRAP;
+ xclear(0, 0, xw.w, xw.h);
tclearregion(0, 0, term.col-1, term.row-1);
}
@@ -801,15 +961,17 @@ void
tnew(int col, int row) {
/* set screen size */
term.row = row, term.col = col;
- term.line = malloc(term.row * sizeof(Line));
- term.alt = malloc(term.row * sizeof(Line));
- term.dirty = malloc(term.row * sizeof(*term.dirty));
+ term.line = xmalloc(term.row * sizeof(Line));
+ term.alt = xmalloc(term.row * sizeof(Line));
+ term.dirty = xmalloc(term.row * sizeof(*term.dirty));
+ term.tabs = xmalloc(term.col * sizeof(*term.tabs));
for(row = 0; row < term.row; row++) {
- term.line[row] = malloc(term.col * sizeof(Glyph));
- term.alt [row] = malloc(term.col * sizeof(Glyph));
+ term.line[row] = xmalloc(term.col * sizeof(Glyph));
+ term.alt [row] = xmalloc(term.col * sizeof(Glyph));
term.dirty[row] = 0;
}
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
/* setup screen */
treset();
}
@@ -827,11 +989,11 @@ void
tscrolldown(int orig, int n) {
int i;
Line temp;
-
+
LIMIT(n, 0, term.bot-orig+1);
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
-
+
for(i = term.bot; i >= orig+n; i--) {
temp = term.line[i];
term.line[i] = term.line[i-n];
@@ -849,9 +1011,9 @@ tscrollup(int orig, int n) {
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
-
+
tclearregion(0, orig, term.col-1, orig+n-1);
-
+
for(i = orig; i <= term.bot-n; i++) {
temp = term.line[i];
term.line[i] = term.line[i+n];
@@ -868,7 +1030,7 @@ 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;
@@ -900,22 +1062,22 @@ tnewline(int first_col) {
void
csiparse(void) {
/* int noarg = 1; */
- char *p = escseq.buf;
+ char *p = csiescseq.buf;
- escseq.narg = 0;
+ csiescseq.narg = 0;
if(*p == '?')
- escseq.priv = 1, p++;
-
- while(p < escseq.buf+escseq.len) {
+ csiescseq.priv = 1, p++;
+
+ while(p < csiescseq.buf+csiescseq.len) {
while(isdigit(*p)) {
- escseq.arg[escseq.narg] *= 10;
- escseq.arg[escseq.narg] += *p++ - '0'/*, noarg = 0 */;
+ csiescseq.arg[csiescseq.narg] *= 10;
+ csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
}
- if(*p == ';' && escseq.narg+1 < ESC_ARG_SIZ)
- escseq.narg++, p++;
+ if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ)
+ csiescseq.narg++, p++;
else {
- escseq.mode = *p;
- escseq.narg++;
+ csiescseq.mode = *p;
+ csiescseq.narg++;
return;
}
}
@@ -964,7 +1126,7 @@ tdeletechar(int n) {
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) {
@@ -1014,25 +1176,39 @@ tsetattr(int *attr, int l) {
for(i = 0; i < l; i++) {
switch(attr[i]) {
case 0:
- term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD);
+ term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
+ | ATTR_ITALIC | ATTR_BLINK);
term.c.attr.fg = DefaultFG;
term.c.attr.bg = DefaultBG;
break;
case 1:
term.c.attr.mode |= ATTR_BOLD;
break;
+ case 3: /* enter standout (highlight) */
+ term.c.attr.mode |= ATTR_ITALIC;
+ break;
case 4:
term.c.attr.mode |= ATTR_UNDERLINE;
break;
+ case 5:
+ term.c.attr.mode |= ATTR_BLINK;
+ break;
case 7:
term.c.attr.mode |= ATTR_REVERSE;
break;
+ case 21:
case 22:
term.c.attr.mode &= ~ATTR_BOLD;
break;
+ case 23: /* leave standout (highlight) mode */
+ term.c.attr.mode &= ~ATTR_ITALIC;
+ break;
case 24:
term.c.attr.mode &= ~ATTR_UNDERLINE;
break;
+ case 25:
+ term.c.attr.mode &= ~ATTR_BLINK;
+ break;
case 27:
term.c.attr.mode &= ~ATTR_REVERSE;
break;
@@ -1045,7 +1221,7 @@ tsetattr(int *attr, int l) {
fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
}
else
- fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
+ fprintf(stderr, "erresc(38): gfx attr %d unknown\n", attr[i]);
break;
case 39:
term.c.attr.fg = DefaultFG;
@@ -1059,7 +1235,7 @@ tsetattr(int *attr, int l) {
fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
}
else
- fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]);
+ fprintf(stderr, "erresc(48): gfx attr %d unknown\n", attr[i]);
break;
case 49:
term.c.attr.bg = DefaultBG;
@@ -1072,10 +1248,9 @@ tsetattr(int *attr, int l) {
else if(BETWEEN(attr[i], 90, 97))
term.c.attr.fg = attr[i] - 90 + 8;
else if(BETWEEN(attr[i], 100, 107))
- term.c.attr.fg = attr[i] - 100 + 8;
+ term.c.attr.bg = attr[i] - 100 + 8;
else
- fprintf(stderr, "erresc: gfx attr %d unknown\n", attr[i]), csidump();
-
+ fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump();
break;
}
}
@@ -1096,9 +1271,101 @@ tsetscroll(int t, int b) {
term.bot = b;
}
+#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
+
+void
+tsetmode(bool priv, bool set, int *args, int narg) {
+ int *lim, mode;
+
+ for(lim = args + narg; args < lim; ++args) {
+ if(priv) {
+ switch(*args) {
+ break;
+ case 1: /* DECCKM -- Cursor key */
+ MODBIT(term.mode, set, MODE_APPKEYPAD);
+ break;
+ case 5: /* DECSCNM -- Reverve video */
+ mode = term.mode;
+ MODBIT(term.mode,set, MODE_REVERSE);
+ if(mode != term.mode)
+ redraw();
+ break;
+ case 6: /* XXX: DECOM -- Origin */
+ break;
+ case 7: /* DECAWM -- Auto wrap */
+ MODBIT(term.mode, set, MODE_WRAP);
+ break;
+ case 8: /* XXX: DECARM -- Auto repeat */
+ break;
+ case 0: /* Error (IGNORED) */
+ case 12: /* att610 -- Start blinking cursor (IGNORED) */
+ break;
+ case 25:
+ MODBIT(term.c.state, !set, CURSOR_HIDE);
+ break;
+ case 1000: /* 1000,1002: enable xterm mouse report */
+ MODBIT(term.mode, set, MODE_MOUSEBTN);
+ break;
+ case 1002:
+ MODBIT(term.mode, set, 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);
+ if((set && !IS_SET(MODE_ALTSCREEN)) ||
+ (!set && IS_SET(MODE_ALTSCREEN))) {
+ tswapscreen();
+ }
+ if(*args != 1049)
+ break;
+ /* pass through */
+ case 1048:
+ tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
+ break;
+ default:
+ /* case 2: DECANM -- ANSI/VT52 (NOT SUPPOURTED) */
+ /* case 3: DECCOLM -- Column (NOT SUPPORTED) */
+ /* case 4: DECSCLM -- Scroll (NOT SUPPORTED) */
+ /* case 18: DECPFF -- Printer feed (NOT SUPPORTED) */
+ /* case 19: DECPEX -- Printer extent (NOT SUPPORTED) */
+ /* case 42: DECNRCM -- National characters (NOT SUPPORTED) */
+ fprintf(stderr,
+ "erresc: unknown private set/reset mode %d\n",
+ *args);
+ break;
+ }
+ } else {
+ switch(*args) {
+ case 0: /* Error (IGNORED) */
+ break;
+ case 2: /* KAM -- keyboard action */
+ MODBIT(term.mode, set, MODE_KBDLOCK);
+ break;
+ case 4: /* IRM -- Insertion-replacement */
+ MODBIT(term.mode, set, MODE_INSERT);
+ break;
+ case 12: /* XXX: SRM -- Send/Receive */
+ break;
+ case 20: /* LNM -- Linefeed/new line */
+ MODBIT(term.mode, set, MODE_CRLF);
+ break;
+ default:
+ fprintf(stderr,
+ "erresc: unknown set/reset mode %d\n",
+ *args);
+ break;
+ }
+ }
+ }
+}
+#undef MODBIT
+
+
void
csihandle(void) {
- switch(escseq.mode) {
+ switch(csiescseq.mode) {
default:
unknown:
fprintf(stderr, "erresc: unknown csi ");
@@ -1106,50 +1373,66 @@ csihandle(void) {
/* die(""); */
break;
case '@': /* ICH -- Insert <n> blank char */
- DEFAULT(escseq.arg[0], 1);
- tinsertblank(escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblank(csiescseq.arg[0]);
break;
case 'A': /* CUU -- Cursor <n> Up */
case 'e':
- DEFAULT(escseq.arg[0], 1);
- tmoveto(term.c.x, term.c.y-escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
break;
case 'B': /* CUD -- Cursor <n> Down */
- DEFAULT(escseq.arg[0], 1);
- tmoveto(term.c.x, term.c.y+escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
break;
case 'C': /* CUF -- Cursor <n> Forward */
case 'a':
- DEFAULT(escseq.arg[0], 1);
- tmoveto(term.c.x+escseq.arg[0], term.c.y);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
break;
case 'D': /* CUB -- Cursor <n> Backward */
- DEFAULT(escseq.arg[0], 1);
- tmoveto(term.c.x-escseq.arg[0], term.c.y);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
break;
case 'E': /* CNL -- Cursor <n> Down and first col */
- DEFAULT(escseq.arg[0], 1);
- tmoveto(0, term.c.y+escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y+csiescseq.arg[0]);
break;
case 'F': /* CPL -- Cursor <n> Up and first col */
- DEFAULT(escseq.arg[0], 1);
- tmoveto(0, term.c.y-escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(0, term.c.y-csiescseq.arg[0]);
+ break;
+ case 'g': /* TBC -- Tabulation clear */
+ switch (csiescseq.arg[0]) {
+ case 0: /* clear current tab stop */
+ term.tabs[term.c.x] = 0;
+ break;
+ case 3: /* clear all the tabs */
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ break;
+ default:
+ goto unknown;
+ }
break;
case 'G': /* CHA -- Move to <col> */
- case '`': /* XXX: HPA -- same? */
- DEFAULT(escseq.arg[0], 1);
- tmoveto(escseq.arg[0]-1, term.c.y);
+ case '`': /* HPA */
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(csiescseq.arg[0]-1, term.c.y);
break;
case 'H': /* CUP -- Move to <row> <col> */
- case 'f': /* XXX: HVP -- same? */
- DEFAULT(escseq.arg[0], 1);
- DEFAULT(escseq.arg[1], 1);
- tmoveto(escseq.arg[1]-1, escseq.arg[0]-1);
+ case 'f': /* HVP */
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], 1);
+ tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
+ break;
+ case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ while(csiescseq.arg[0]--)
+ tputtab(1);
break;
- /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation <n> tab stops */
case 'J': /* ED -- Clear screen */
sel.bx = -1;
- switch(escseq.arg[0]) {
+ switch(csiescseq.arg[0]) {
case 0: /* below */
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
if(term.c.y < term.row-1)
@@ -1168,7 +1451,7 @@ csihandle(void) {
}
break;
case 'K': /* EL -- Clear line */
- switch(escseq.arg[0]) {
+ switch(csiescseq.arg[0]) {
case 0: /* right */
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
break;
@@ -1181,152 +1464,54 @@ csihandle(void) {
}
break;
case 'S': /* SU -- Scroll <n> line up */
- DEFAULT(escseq.arg[0], 1);
- tscrollup(term.top, escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrollup(term.top, csiescseq.arg[0]);
break;
case 'T': /* SD -- Scroll <n> line down */
- DEFAULT(escseq.arg[0], 1);
- tscrolldown(term.top, escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tscrolldown(term.top, csiescseq.arg[0]);
break;
case 'L': /* IL -- Insert <n> blank lines */
- DEFAULT(escseq.arg[0], 1);
- tinsertblankline(escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tinsertblankline(csiescseq.arg[0]);
break;
case 'l': /* RM -- Reset Mode */
- if(escseq.priv) {
- switch(escseq.arg[0]) {
- case 1:
- term.mode &= ~MODE_APPKEYPAD;
- break;
- case 5: /* DECSCNM -- Remove reverse video */
- if(IS_SET(MODE_REVERSE)) {
- term.mode &= ~MODE_REVERSE;
- draw();
- }
- break;
- case 7:
- term.mode &= ~MODE_WRAP;
- break;
- case 12: /* att610 -- Stop blinking cursor (IGNORED) */
- break;
- case 20:
- term.mode &= ~MODE_CRLF;
- break;
- 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] != 1049)
- break;
- case 1048:
- tcursor(CURSOR_LOAD);
- break;
- default:
- goto unknown;
- }
- } else {
- switch(escseq.arg[0]) {
- case 4:
- term.mode &= ~MODE_INSERT;
- break;
- default:
- goto unknown;
- }
- }
+ tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
break;
case 'M': /* DL -- Delete <n> lines */
- DEFAULT(escseq.arg[0], 1);
- tdeleteline(escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeleteline(csiescseq.arg[0]);
break;
case 'X': /* ECH -- Erase <n> char */
- DEFAULT(escseq.arg[0], 1);
- tclearregion(term.c.x, term.c.y, term.c.x + escseq.arg[0], term.c.y);
+ DEFAULT(csiescseq.arg[0], 1);
+ tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
break;
case 'P': /* DCH -- Delete <n> char */
- DEFAULT(escseq.arg[0], 1);
- tdeletechar(escseq.arg[0]);
+ DEFAULT(csiescseq.arg[0], 1);
+ tdeletechar(csiescseq.arg[0]);
+ break;
+ case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
+ DEFAULT(csiescseq.arg[0], 1);
+ while(csiescseq.arg[0]--)
+ tputtab(0);
break;
- /* XXX: (CSI n Z) CBT -- Cursor Backward Tabulation <n> tab stops */
case 'd': /* VPA -- Move to <row> */
- DEFAULT(escseq.arg[0], 1);
- tmoveto(term.c.x, escseq.arg[0]-1);
+ DEFAULT(csiescseq.arg[0], 1);
+ tmoveto(term.c.x, csiescseq.arg[0]-1);
break;
case 'h': /* SM -- Set terminal mode */
- if(escseq.priv) {
- switch(escseq.arg[0]) {
- case 1:
- term.mode |= MODE_APPKEYPAD;
- break;
- case 5: /* DECSCNM -- Reverve video */
- if(!IS_SET(MODE_REVERSE)) {
- term.mode |= MODE_REVERSE;
- draw();
- }
- break;
- case 7:
- term.mode |= MODE_WRAP;
- break;
- case 20:
- term.mode |= MODE_CRLF;
- break;
- case 12: /* att610 -- Start blinking cursor (IGNORED) */
- /* fallthrough for xterm cvvis = CSI [ ? 12 ; 25 h */
- if(escseq.narg > 1 && escseq.arg[1] != 25)
- break;
- 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] != 1049)
- break;
- case 1048:
- tcursor(CURSOR_SAVE);
- break;
- default: goto unknown;
- }
- } else {
- switch(escseq.arg[0]) {
- case 4:
- term.mode |= MODE_INSERT;
- break;
- default: goto unknown;
- }
- };
+ tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
break;
case 'm': /* SGR -- Terminal attribute (color) */
- tsetattr(escseq.arg, escseq.narg);
+ tsetattr(csiescseq.arg, csiescseq.narg);
break;
case 'r': /* DECSTBM -- Set Scrolling Region */
- if(escseq.priv)
+ if(csiescseq.priv)
goto unknown;
else {
- DEFAULT(escseq.arg[0], 1);
- DEFAULT(escseq.arg[1], term.row);
- tsetscroll(escseq.arg[0]-1, escseq.arg[1]-1);
+ DEFAULT(csiescseq.arg[0], 1);
+ DEFAULT(csiescseq.arg[1], term.row);
+ tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
tmoveto(0, 0);
}
break;
@@ -1342,50 +1527,153 @@ csihandle(void) {
void
csidump(void) {
int i;
- printf("ESC [ %s", escseq.priv ? "? " : "");
- if(escseq.narg)
- for(i = 0; i < escseq.narg; i++)
- printf("%d ", escseq.arg[i]);
- if(escseq.mode)
- putchar(escseq.mode);
+ printf("ESC[");
+ for(i = 0; i < csiescseq.len; i++) {
+ uint c = csiescseq.buf[i] & 0xff;
+ if(isprint(c)) putchar(c);
+ else if(c == '\n') printf("(\\n)");
+ else if(c == '\r') printf("(\\r)");
+ else if(c == 0x1b) printf("(\\e)");
+ else printf("(%02x)", c);
+ }
putchar('\n');
}
void
csireset(void) {
- memset(&escseq, 0, sizeof(escseq));
+ memset(&csiescseq, 0, sizeof(csiescseq));
+}
+
+void
+strhandle(void) {
+ char *p;
+
+ /*
+ * TODO: make this being useful in case of color palette change.
+ */
+ strparse();
+
+ p = strescseq.buf;
+
+ switch(strescseq.type) {
+ case ']': /* OSC -- Operating System Command */
+ switch(p[0]) {
+ case '0':
+ case '1':
+ case '2':
+ /*
+ * TODO: Handle special chars in string, like umlauts.
+ */
+ if(p[1] == ';') {
+ XStoreName(xw.dpy, xw.win, strescseq.buf+2);
+ }
+ break;
+ case ';':
+ XStoreName(xw.dpy, xw.win, strescseq.buf+1);
+ break;
+ case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
+ break;
+ default:
+ fprintf(stderr, "erresc: unknown str ");
+ strdump();
+ break;
+ }
+ break;
+ case 'k': /* old title set compatibility */
+ XStoreName(xw.dpy, xw.win, strescseq.buf);
+ break;
+ case 'P': /* DSC -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ default:
+ fprintf(stderr, "erresc: unknown str ");
+ strdump();
+ /* die(""); */
+ break;
+ }
}
void
-tputtab(void) {
- int space = TAB - term.c.x % TAB;
- tmoveto(term.c.x + space, term.c.y);
+strparse(void) {
+ /*
+ * TODO: Implement parsing like for CSI when required.
+ * Format: ESC type cmd ';' arg0 [';' argn] ESC \
+ */
+ return;
+}
+
+void
+strdump(void) {
+ int i;
+ printf("ESC%c", strescseq.type);
+ for(i = 0; i < strescseq.len; i++) {
+ uint c = strescseq.buf[i] & 0xff;
+ if(isprint(c)) putchar(c);
+ else if(c == '\n') printf("(\\n)");
+ else if(c == '\r') printf("(\\r)");
+ else if(c == 0x1b) printf("(\\e)");
+ else printf("(%02x)", c);
+ }
+ printf("ESC\\\n");
+}
+
+void
+strreset(void) {
+ memset(&strescseq, 0, sizeof(strescseq));
+}
+
+void
+tputtab(bool forward) {
+ uint x = term.c.x;
+
+ if(forward) {
+ if(x == term.col)
+ return;
+ for(++x; x < term.col && !term.tabs[x]; ++x)
+ /* nothing */ ;
+ } else {
+ if(x == 0)
+ return;
+ for(--x; x > 0 && !term.tabs[x]; --x)
+ /* nothing */ ;
+ }
+ tmoveto(x, term.c.y);
}
void
tputc(char *c) {
char ascii = *c;
+
+ if(iofd != -1)
+ write(iofd, c, 1);
+
if(term.esc & ESC_START) {
if(term.esc & ESC_CSI) {
- escseq.buf[escseq.len++] = ascii;
- if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
+ csiescseq.buf[csiescseq.len++] = ascii;
+ if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) {
term.esc = 0;
csiparse(), csihandle();
}
- /* TODO: handle other OSC */
- } else if(term.esc & ESC_OSC) {
- if(ascii == ';') {
- term.titlelen = 0;
- term.esc = ESC_START | ESC_TITLE;
- }
- } else if(term.esc & ESC_TITLE) {
- if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
+ } else if(term.esc & ESC_STR) {
+ switch(ascii) {
+ case '\033':
+ term.esc = ESC_START | ESC_STR_END;
+ break;
+ case '\a': /* backwards compatibility to xterm */
term.esc = 0;
- term.title[term.titlelen] = '\0';
- XStoreName(xw.dpy, xw.win, term.title);
- } else {
- term.title[term.titlelen++] = ascii;
+ strhandle();
+ break;
+ default:
+ strescseq.buf[strescseq.len++] = ascii;
+ if(strescseq.len+1 >= STR_BUF_SIZ) {
+ term.esc = 0;
+ strhandle();
+ }
}
+ } else if(term.esc & ESC_STR_END) {
+ term.esc = 0;
+ if(ascii == '\\')
+ strhandle();
} else if(term.esc & ESC_ALTCHARSET) {
switch(ascii) {
case '0': /* Line drawing crap */
@@ -1403,8 +1691,14 @@ tputc(char *c) {
case '[':
term.esc |= ESC_CSI;
break;
- case ']':
- term.esc |= ESC_OSC;
+ case 'P': /* DCS -- Device Control String */
+ case '_': /* APC -- Application Program Command */
+ case '^': /* PM -- Privacy Message */
+ case ']': /* OSC -- Operating System Command */
+ case 'k': /* old title set compatibility */
+ strreset();
+ strescseq.type = ascii;
+ term.esc |= ESC_STR;
break;
case '(':
term.esc |= ESC_ALTCHARSET;
@@ -1420,6 +1714,10 @@ tputc(char *c) {
tnewline(1); /* always go to first col */
term.esc = 0;
break;
+ case 'H': /* HTS -- Horizontal tab stop */
+ term.tabs[term.c.x] = 1;
+ term.esc = 0;
+ break;
case 'M': /* RI -- Reverse index */
if(term.c.y == term.top)
tscrolldown(term.top, 1);
@@ -1430,6 +1728,7 @@ tputc(char *c) {
case 'c': /* RIS -- Reset to inital state */
treset();
term.esc = 0;
+ xresettitle();
break;
case '=': /* DECPAM -- Application keypad */
term.mode |= MODE_APPKEYPAD;
@@ -1447,6 +1746,9 @@ tputc(char *c) {
tcursor(CURSOR_LOAD);
term.esc = 0;
break;
+ case '\\': /* ST -- Stop */
+ term.esc = 0;
+ break;
default:
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
(uchar) ascii, isprint(ascii)?ascii:'.');
@@ -1457,8 +1759,10 @@ tputc(char *c) {
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
sel.bx = -1;
switch(ascii) {
+ case '\0': /* padding character, do nothing */
+ break;
case '\t':
- tputtab();
+ tputtab(1);
break;
case '\b':
tmoveto(term.c.x-1, term.c.y);
@@ -1521,15 +1825,16 @@ tresize(int col, int row) {
}
/* 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));
+ term.line = xrealloc(term.line, row * sizeof(Line));
+ term.alt = xrealloc(term.alt, row * sizeof(Line));
+ term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
/* 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));
+ term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
+ term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
for(x = mincol; x < col; x++) {
term.line[i][x].state = 0;
term.alt[i][x].state = 0;
@@ -1539,10 +1844,18 @@ tresize(int col, int row) {
/* 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));
+ term.line[i] = xcalloc(col, sizeof(Glyph));
+ term.alt [i] = xcalloc(col, sizeof(Glyph));
+ }
+ if(col > term.col) {
+ bool *bp = term.tabs + term.col;
+
+ memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ while(--bp > term.tabs && !*bp)
+ /* nothing */ ;
+ for(bp += TAB; bp < term.tabs + col; bp += TAB)
+ *bp = 1;
}
-
/* update terminal size */
term.col = col, term.row = row;
/* make use of the LIMIT in tmoveto */
@@ -1555,70 +1868,51 @@ tresize(int col, int row) {
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);
- 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;
+ xw.tw = MAX(1, 2*BORDER + col * xw.cw);
+ xw.th = MAX(1, 2*BORDER + row * xw.ch);
+
+ XftDrawChange(xw.xft_draw, xw.buf);
}
void
xloadcols(void) {
int i, r, g, b;
- XColor color;
+ XRenderColor xft_color = { .alpha = 0 };
ulong white = WhitePixel(xw.dpy, xw.scr);
+ /* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
for(i = 0; i < LEN(colorname); i++) {
- if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) {
+ if(!colorname[i])
+ continue;
+ if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.xft_col[i])) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
} else
- dc.col[i] = color.pixel;
+ dc.col[i] = dc.xft_col[i].pixel;
}
- /* same colors as xterm */
- for(r = 0; r < 6; r++)
+ /* load colors [16-255] ; same colors as xterm */
+ for(i = 16, r = 0; r < 6; r++)
for(g = 0; g < 6; g++)
for(b = 0; b < 6; b++) {
- 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.dpy, xw.cmap, &color)) {
+ xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
+ xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
+ xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
+ if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color %d\n", i);
} else
- dc.col[i] = color.pixel;
+ dc.col[i] = dc.xft_col[i].pixel;
i++;
}
for(r = 0; r < 24; r++, i++) {
- color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
- if (!XAllocColor(xw.dpy, xw.cmap, &color)) {
+ xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
+ if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
dc.col[i] = white;
fprintf(stderr, "Could not allocate color %d\n", i);
} else
- dc.col[i] = color.pixel;
+ dc.col[i] = dc.xft_col[i].pixel;
}
}
@@ -1626,68 +1920,54 @@ void
xclear(int x1, int y1, int x2, int y2) {
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);
+ BORDER + x1 * xw.cw, BORDER + y1 * xw.ch,
+ (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
}
void
xhints(void) {
XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
XWMHints wm = {.flags = InputHint, .input = 1};
- XSizeHints size = {
- .flags = PSize | PResizeInc | PBaseSize,
- .height = xw.h,
- .width = xw.w,
- .height_inc = xw.ch,
- .width_inc = xw.cw,
- .base_height = 2*BORDER,
- .base_width = 2*BORDER,
- };
- 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);
+ XSizeHints *sizeh = NULL;
+
+ sizeh = XAllocSizeHints();
+ if(xw.isfixed == False) {
+ sizeh->flags = PSize | PResizeInc | PBaseSize;
+ sizeh->height = xw.h;
+ sizeh->width = xw.w;
+ sizeh->height_inc = xw.ch;
+ sizeh->width_inc = xw.cw;
+ sizeh->base_height = 2*BORDER;
+ sizeh->base_width = 2*BORDER;
+ } else {
+ sizeh->flags = PMaxSize | PMinSize;
+ sizeh->min_width = sizeh->max_width = xw.fw;
+ sizeh->min_height = sizeh->max_height = xw.fh;
}
- return set;
+
+ XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
+ XFree(sizeh);
}
void
-xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) {
- XFontStruct **xfonts;
- char **font_names;
- int i, n;
+xinitfont(Font *f, char *fontstr) {
+ f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
- *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++;
- }
+ if(!f->xft_set)
+ die("st: can't open font %s.\n", fontstr);
+
+ f->ascent = f->xft_set->ascent;
+ f->descent = f->xft_set->descent;
+ f->lbearing = 0;
+ f->rbearing = f->xft_set->max_advance_width;
}
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);
+initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
+ xinitfont(&dc.font, fontstr);
+ xinitfont(&dc.bfont, bfontstr);
+ xinitfont(&dc.ifont, ifontstr);
+ xinitfont(&dc.ibfont, ibfontstr);
}
void
@@ -1695,13 +1975,15 @@ xinit(void) {
XSetWindowAttributes attrs;
Cursor cursor;
Window parent;
+ int sw, sh, major, minor;
if(!(xw.dpy = XOpenDisplay(NULL)))
die("Can't open display\n");
xw.scr = XDefaultScreen(xw.dpy);
-
+ xw.vis = XDefaultVisual(xw.dpy, xw.scr);
+
/* font */
- initfonts(FONT, BOLDFONT);
+ initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT);
/* XXX: Assuming same size for bold font */
xw.cw = dc.font.rbearing - dc.font.lbearing;
@@ -1711,30 +1993,48 @@ xinit(void) {
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
xloadcols();
- /* window - default size */
- xw.bufh = term.row * xw.ch;
- xw.bufw = term.col * xw.cw;
- xw.h = xw.bufh + 2*BORDER;
- xw.w = xw.bufw + 2*BORDER;
+ /* adjust fixed window geometry */
+ if(xw.isfixed) {
+ sw = DisplayWidth(xw.dpy, xw.scr);
+ sh = DisplayHeight(xw.dpy, xw.scr);
+ if(xw.fx < 0)
+ xw.fx = sw + xw.fx - xw.fw - 1;
+ if(xw.fy < 0)
+ xw.fy = sh + xw.fy - xw.fh - 1;
+
+ xw.h = xw.fh;
+ xw.w = xw.fw;
+ } else {
+ /* window - default size */
+ xw.h = 2*BORDER + term.row * xw.ch;
+ xw.w = 2*BORDER + term.col * xw.cw;
+ xw.fx = 0;
+ xw.fy = 0;
+ }
attrs.background_pixel = dc.col[DefaultBG];
attrs.border_pixel = dc.col[DefaultBG];
attrs.bit_gravity = NorthWestGravity;
attrs.event_mask = FocusChangeMask | KeyPressMask
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
- | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask
- | EnterWindowMask | LeaveWindowMask;
+ | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
attrs.colormap = xw.cmap;
parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
- xw.win = XCreateWindow(xw.dpy, parent, 0, 0,
+ xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
- XDefaultVisual(xw.dpy, xw.scr),
+ xw.vis,
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
| CWColormap,
&attrs);
- xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr));
+ /* double buffering */
+ if(!XdbeQueryExtension(xw.dpy, &major, &minor))
+ die("Xdbe extension is not present\n");
+ xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
+
+ /* Xft rendering context */
+ xw.xft_draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
/* input methods */
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
@@ -1743,7 +2043,7 @@ xinit(void) {
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);
@@ -1753,7 +2053,7 @@ xinit(void) {
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
- XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
+ xresettitle();
XMapWindow(xw.dpy, xw.win);
xhints();
XSync(xw.dpy, 0);
@@ -1761,23 +2061,35 @@ xinit(void) {
void
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
- 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 fg = base.fg, bg = base.bg, temp;
+ int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
+ Font *font = &dc.font;
+ XGlyphInfo extents;
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(fg == DefaultFG)
+ fg = DefaultBG;
+ if(bg == DefaultBG)
+ bg = DefaultFG;
}
if(base.mode & ATTR_REVERSE)
- temp = xfg, xfg = xbg, xbg = temp;
+ temp = fg, fg = bg, bg = temp;
+
+ if(base.mode & ATTR_BOLD) {
+ fg += 8;
+ font = &dc.bfont;
+ }
- XSetBackground(xw.dpy, dc.gc, xbg);
- XSetForeground(xw.dpy, dc.gc, xfg);
+ if(base.mode & ATTR_ITALIC)
+ font = &dc.ifont;
+ if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
+ font = &dc.ibfont;
+
+ XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
+ XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
if(base.mode & ATTR_GFX) {
for(i = 0; i < bytelen; i++) {
@@ -1789,31 +2101,25 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
}
}
- XmbDrawImageString(xw.dpy, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.set : dc.font.set,
- dc.gc, winx, winy, s, bytelen);
-
+ XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen, &extents);
+ width = extents.xOff;
+ XftDrawRect(xw.xft_draw, &dc.xft_col[bg], winx, winy - font->ascent, width, xw.ch);
+ XftDrawStringUtf8(xw.xft_draw, &dc.xft_col[fg], font->xft_set, winx, winy, (FcChar8 *)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;
static int oldy = 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)
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
@@ -1824,24 +2130,42 @@ xdrawcursor(void) {
} 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(!(term.c.state & CURSOR_HIDE)) {
+ if(!(xw.state & WIN_FOCUSED))
+ g.bg = DefaultUCS;
+
if(IS_SET(MODE_REVERSE))
g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
+
+ sl = utf8size(g.c);
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
+xresettitle(void) {
+ XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
+}
+
+void
+redraw(void) {
+ struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
+
+ xclear(0, 0, xw.w, xw.h);
+ tfulldirt();
+ draw();
+ XSync(xw.dpy, False); /* necessary for a good tput flash */
+ nanosleep(&tv, NULL);
}
void
draw() {
+ XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
+
drawregion(0, 0, term.col, term.row);
- gettimeofday(&xw.lastdraw, NULL);
+ XdbeSwapBuffers(xw.dpy, swpinfo, 1);
}
void
@@ -1849,7 +2173,10 @@ drawregion(int x1, int y1, int x2, int y2) {
int ic, ib, x, y, ox, sl;
Glyph base, new;
char buf[DRAW_BUF_SIZ];
+ bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN);
+ if((sel.alt && !alt) || (!sel.alt && alt))
+ ena_sel = 0;
if(!(xw.state & WIN_VISIBLE))
return;
@@ -1862,7 +2189,7 @@ drawregion(int x1, int y1, int x2, int y2) {
ic = ib = ox = 0;
for(x = x1; x < x2; x++) {
new = term.line[y][x];
- if(sel.bx != -1 && *(new.c) && selected(x, y))
+ if(ena_sel && *(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)) {
@@ -1882,7 +2209,6 @@ drawregion(int x1, int y1, int x2, int y2) {
}
if(ib > 0)
xdraws(buf, base, ox, y, ic, ib);
- xcopy(0, y, term.col, 1);
}
xdrawcursor();
}
@@ -1891,13 +2217,9 @@ void
expose(XEvent *ev) {
XExposeEvent *e = &ev->xexpose;
if(xw.state & WIN_REDRAW) {
- if(!e->count) {
+ if(!e->count)
xw.state &= ~WIN_REDRAW;
- xcopy(0, 0, term.col, term.row);
- }
- } else
- XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER,
- e->width, e->height, e->x, e->y);
+ }
}
void
@@ -1930,7 +2252,6 @@ focus(XEvent *ev) {
xseturgency(0);
} else
xw.state &= ~WIN_FOCUSED;
- draw();
}
char*
@@ -1956,10 +2277,12 @@ kpress(XEvent *ev) {
int shift;
Status status;
+ if (IS_SET(MODE_KBDLOCK))
+ return;
meta = e->state & Mod1Mask;
shift = e->state & ShiftMask;
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
-
+
/* 1. custom keys from config.h */
if((customkey = kmap(ksym, e->state)))
ttywrite(customkey, strlen(customkey));
@@ -1999,71 +2322,71 @@ 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) {
+ 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) {
+ } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
xw.state &= ~WIN_FOCUSED;
}
- draw();
}
}
void
resize(XEvent *e) {
int col, row;
-
+
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
return;
-
+
xw.w = e->xconfigure.width;
xw.h = e->xconfigure.height;
col = (xw.w - 2*BORDER) / xw.cw;
row = (xw.h - 2*BORDER) / xw.ch;
if(col == term.col && row == term.row)
return;
- if(tresize(col, row))
- draw();
- ttyresize(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;
+ xclear(0, 0, xw.w, xw.h);
+ tresize(col, row);
+ xresize(col, row);
+ ttyresize();
}
void
run(void) {
XEvent ev;
fd_set rfd;
- int xfd = XConnectionNumber(xw.dpy);
- struct timeval timeout = {0};
- bool stuff_to_print = 0;
-
- for(;;) {
+ int xfd = XConnectionNumber(xw.dpy), i;
+ struct timeval drawtimeout, *tv = NULL;
+
+ for(i = 0;; i++) {
FD_ZERO(&rfd);
FD_SET(cmdfd, &rfd);
FD_SET(xfd, &rfd);
- timeout.tv_sec = 0;
- timeout.tv_usec = SELECT_TIMEOUT;
- if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) {
+ if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
if(errno == EINTR)
continue;
die("select failed: %s\n", SERRNO);
}
- if(FD_ISSET(cmdfd, &rfd)) {
+
+ /*
+ * Stop after a certain number of reads so the user does not
+ * feel like the system is stuttering.
+ */
+ if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
ttyread();
- stuff_to_print = 1;
- }
- if(stuff_to_print && last_draw_too_old()) {
- stuff_to_print = 0;
- draw();
+ /*
+ * Just wait a bit so it isn't disturbing the
+ * user and the system is able to write something.
+ */
+ drawtimeout.tv_sec = 0;
+ drawtimeout.tv_usec = 5;
+ tv = &drawtimeout;
+ continue;
}
+ i = 0;
+ tv = NULL;
while(XPending(xw.dpy)) {
XNextEvent(xw.dpy, &ev);
@@ -2072,13 +2395,20 @@ run(void) {
if(handler[ev.type])
(handler[ev.type])(&ev);
}
+
+ draw();
+ XFlush(xw.dpy);
}
}
int
main(int argc, char *argv[]) {
- int i;
-
+ int i, bitm, xr, yr;
+ uint wr, hr;
+
+ xw.fw = xw.fh = xw.fx = xw.fy = 0;
+ xw.isfixed = False;
+
for(i = 1; i < argc; i++) {
switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
case 't':
@@ -2090,10 +2420,34 @@ main(int argc, char *argv[]) {
case 'w':
if(++i < argc) opt_embed = argv[i];
break;
+ case 'f':
+ if(++i < argc) opt_io = argv[i];
+ break;
case 'e':
/* eat every remaining arguments */
if(++i < argc) opt_cmd = &argv[i];
goto run;
+ case 'g':
+ if(++i >= argc)
+ break;
+
+ bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr);
+ if(bitm & XValue)
+ xw.fx = xr;
+ if(bitm & YValue)
+ xw.fy = yr;
+ if(bitm & WidthValue)
+ xw.fw = (int)wr;
+ if(bitm & HeightValue)
+ xw.fh = (int)hr;
+ if(bitm & XNegative && xw.fx == 0)
+ xw.fx = -1;
+ if(bitm & XNegative && xw.fy == 0)
+ xw.fy = -1;
+
+ if(xw.fh != 0 && xw.fw != 0)
+ xw.isfixed = True;
+ break;
case 'v':
default:
die(USAGE);
@@ -2102,10 +2456,11 @@ main(int argc, char *argv[]) {
run:
setlocale(LC_CTYPE, "");
+ xinit();
tnew(80, 24);
ttynew();
- xinit();
selinit();
run();
return 0;
}
+