jab2870
/
st
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

bold attribute is back.

Browse Source 
visibility of the cursor is not saved/loaded anymore.
scrolling up/down is fixed.
added RI and RIS sequences.
fixed cursor drawing bug.
master
Aurélien Aptel 15 years ago
parent 7cdaf130b1
commit 0f4dd5035e
2 changed files with 126 additions and 50 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 3
      config.h
  2. 173
      st.c

3
config.h
Unescape View File

@ -1,7 +1,8 @@
#define SHELL "/bin/bash"
#define TAB 8
#define FONT "fixed"
#define FONT "6x13"
#define BOLDFONT FONT"bold"
#define BORDER 3
#define LINESPACE 0 /* additional pixel between each line */

173
st.c
Unescape View File

@ -57,7 +57,6 @@ typedef Glyph* Line;
typedef struct {
Glyph attr; /* current char attributes */
char hidden;
int x;
int y;
} TCursor;
@ -79,6 +78,7 @@ typedef struct {
int col; /* nb col */
Line* line; /* screen */
TCursor c; /* cursor */
char hidec;
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */
@ -109,6 +109,7 @@ typedef struct {
typedef struct {
unsigned long col[LEN(colorname)];
XFontStruct* font;
XFontStruct* bfont;
GC gc;
} DC;
@ -135,8 +136,11 @@ static void tnew(int, int);
static void tnewline(void);
static void tputc(char);
static void tputs(char*, int);
static void treset(void);
static void tresize(int, int);
static void tscroll(void);
static void tscrollup(int);
static void tscrolldown(int);
static void tsetattr(int*, int);
static void tsetchar(char);
static void tsetscroll(int, int);
@ -149,12 +153,11 @@ static void ttywrite(const char *, size_t);
static unsigned long xgetcol(const char *);
static void xclear(int, int, int, int);
static void xcursor(int);
static void xdrawc(int, int, Glyph);
static void xinit(void);
static void xscroll(void);
static void expose(XEvent *);
static char * kmap(KeySym);
static char* kmap(KeySym);
static void kpress(XEvent *);
static void resize(XEvent *);
@ -312,6 +315,18 @@ tcursor(int mode) {
term.c = c, tmoveto(c.x, c.y);
}
void
treset(void) {
term.c.attr.mode = ATTR_NULL;
term.c.attr.fg = DefaultFG;
term.c.attr.bg = DefaultBG;
term.c.x = term.c.y = 0;
term.hidec = 0;
term.top = 0, term.bot = term.row - 1;
term.mode = MODE_WRAP;
tclearregion(0, 0, term.col-1, term.row-1);
}
void
tnew(int col, int row) { /* screen size */
term.row = row, term.col = col;
@ -323,17 +338,19 @@ tnew(int col, int row) { /* screen size */
term.c.attr.fg = DefaultFG;
term.c.attr.bg = DefaultBG;
term.c.x = term.c.y = 0;
term.c.hidden = 0;
term.hidec = 0;
/* allocate screen */
term.line = calloc(term.row, sizeof(Line));
for(row = 0 ; row < term.row; row++)
term.line[row] = calloc(term.col, sizeof(Glyph));
}
/* TODO: Replace with scrollup/scolldown */
void
tscroll(void) {
Line temp = term.line[term.top];
int i;
/* No dirty flag to set because of xscroll */
/* X stuff _before_ the line swapping (results in wrong line index) */
xscroll();
for(i = term.top; i < term.bot; i++)
@ -342,6 +359,41 @@ tscroll(void) {
term.line[term.bot] = temp;
}
void
tscrolldown (int n) {
int i;
Line temp;
/* TODO: set dirty flag or scroll with some X func */
LIMIT(n, 0, term.bot-term.top+1);
for(i = 0; i < n; i++)
memset(term.line[term.bot-i], 0, term.col*sizeof(Glyph));
for(i = term.bot; i >= term.top+n; i--) {
temp = term.line[i];
term.line[i] = term.line[i-n];
term.line[i-n] = temp;
}
}
void
tscrollup (int n) {
int i;
Line temp;
LIMIT(n, 0, term.bot-term.top+1);
/* TODO: set dirty flag or scroll with some X func */
for(i = 0; i < n; i++)
memset(term.line[term.top+i], 0, term.col*sizeof(Glyph));
for(i = term.top; i <= term.bot-n; i++) {
temp = term.line[i];
term.line[i] = term.line[i+n];
term.line[i+n] = temp;
}
}
void
tnewline(void) {
int y = term.c.y + 1;
@ -420,17 +472,20 @@ tsetchar(char c) {
void
tclearregion(int x1, int y1, int x2, int y2) {
int x, y;
int y, temp;
if(x1 > x2)
temp = x1, x1 = x2, x2 = temp;
if(y1 > y2)
temp = y1, y1 = y2, y2 = temp;
LIMIT(x1, 0, term.col-1);
LIMIT(x2, 0, term.col-1);
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
/* XXX: could be optimized */
for(x = x1; x <= x2; x++)
for(y = y1; y <= y2; y++)
memset(&term.line[y][x], 0, sizeof(Glyph));
for(y = y1; y <= y2; y++)
memset(&term.line[y][x1], 0, sizeof(Glyph)*(x2-x1+1));
xclear(x1, y1, x2, y2);
}
@ -542,9 +597,6 @@ tsetattr(int *attr, int l) {
case 7:
term.c.attr.mode |= ATTR_REVERSE;
break;
case 8:
term.c.hidden = CURSOR_HIDE;
break;
case 22:
term.c.attr.mode &= ~ATTR_BOLD;
break;
@ -565,6 +617,8 @@ tsetattr(int *attr, int l) {
term.c.attr.fg = attr[i] - 30;
else if(BETWEEN(attr[i], 40, 47))
term.c.attr.bg = attr[i] - 40;
else
fprintf(stderr, "erresc: gfx attr %d unkown\n", attr[i]);
break;
}
}
@ -590,7 +644,7 @@ csihandle(void) {
switch(escseq.mode) {
default:
unknown:
printf("erresc: unknown sequence -- ");
printf("erresc: unknown csi ");
csidump();
/* die(""); */
break;
@ -665,7 +719,14 @@ csihandle(void) {
break;
}
break;
case 'S': /* XXX: SU -- Scroll <n> line up (faked) */
case 'S': /* SU -- Scroll <n> line up */
DEFAULT(escseq.arg[0], 1);
tscrollup(escseq.arg[0]);
break;
case 'T': /* SD -- Scroll <n> line down */
DEFAULT(escseq.arg[0], 1);
tscrolldown(escseq.arg[0]);
break;
case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(escseq.arg[0], 1);
tinsertblankline(escseq.arg[0]);
@ -682,7 +743,7 @@ csihandle(void) {
case 12: /* att610 -- Stop blinking cursor (IGNORED) */
break;
case 25:
term.c.hidden = 1;
term.hidec = 1;
break;
case 1048: /* XXX: no alt. screen to erase/save */
case 1049:
@ -731,7 +792,7 @@ csihandle(void) {
case 12: /* att610 -- Start blinking cursor (IGNORED) */
break;
case 25:
term.c.hidden = 0;
term.hidec = 0;
break;
case 1048:
case 1049: /* XXX: no alt. screen to erase/save */
@ -866,11 +927,15 @@ tputc(char c) {
break;
case 'M': /* RI -- Reverse index */
if(term.c.y == term.top)
tinsertblankline(1);
tscrolldown(1);
else
tmoveto(term.c.x, term.c.y-1);
term.esc = 0;
break;
case 'c': /* RIS -- Reset to inital state */
treset();
term.esc = 0;
break;
case '=': /* DECPAM */
term.mode |= MODE_APPKEYPAD;
term.esc = 0;
@ -888,7 +953,7 @@ tputc(char c) {
term.esc = 0;
break;
default:
fprintf(stderr, "erresc: unknown sequence ESC %02X '%c'\n", c, isprint(c)?c:'.');
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", c, isprint(c)?c:'.');
term.esc = 0;
}
}
@ -991,8 +1056,6 @@ xscroll(void) {
void
xinit(void) {
XGCValues values;
unsigned long valuemask;
XClassHint chint;
XWMHints wmhint;
XSizeHints shint;
@ -1005,9 +1068,10 @@ xinit(void) {
die("Can't open display\n");
/* font */
if(!(dc.font = XLoadQueryFont(xw.dis, FONT)))
die("Can't load font %s\n", 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);
/* 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 + LINESPACE;
@ -1027,10 +1091,7 @@ xinit(void) {
dc.col[DefaultBG],
dc.col[DefaultBG]);
/* gc */
values.foreground = XWhitePixel(xw.dis, xw.scr);
values.font = dc.font->fid;
valuemask = GCForeground | GCFont;
dc.gc = XCreateGC(xw.dis, xw.win, valuemask, &values);
dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
XMapWindow(xw.dis, xw.win);
/* wm stuff */
chint.res_name = TNAME, chint.res_class = TNAME;
@ -1060,29 +1121,14 @@ xdraws(char *s, Glyph base, int x, int y, int len) {
if(base.mode & ATTR_GFX)
for(i = 0; i < len; i++)
s[i] = gfx[s[i]];
XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len);
if(base.mode & ATTR_UNDERLINE)
XDrawLine(xw.dis, xw.win, dc.gc, winx, winy+1, winx+width-1, winy+1);
}
void
xdrawc(int x, int y, Glyph g) {
XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
unsigned long xfg, xbg;
/* reverse video */
if(g.mode & ATTR_REVERSE)
xfg = dc.col[g.bg], xbg = dc.col[g.fg];
else
xfg = dc.col[g.fg], xbg = dc.col[g.bg];
/* background */
XSetBackground(xw.dis, dc.gc, xbg);
XSetForeground(xw.dis, dc.gc, xfg);
XDrawImageString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
}
void
xcursor(int mode) {
static int oldx = 0;
@ -1094,24 +1140,54 @@ xcursor(int mode) {
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
g.c = term.line[term.c.y][term.c.x].c;
/* remove the old cursor */
if(term.line[oldy][oldx].state & GLYPH_SET)
xdrawc(oldx, oldy, term.line[oldy][oldx]);
else
xdraws(&term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1);
else
xclear(oldx, oldy, oldx, oldy);
/* draw the new one */
if(mode == CURSOR_DRAW) {
xdrawc(term.c.x, term.c.y, g);
xdraws(&g.c, g, term.c.x, term.c.y, 1);
oldx = term.c.x, oldy = term.c.y;
}
}
#ifdef DEBUG
/* basic drawing routines */
void
xdrawc(int x, int y, Glyph g) {
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.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
}
void
draw_(int dummy) {
int x, y;
xclear(0, 0, term.col-1, term.row-1);
for(y = 0; y < term.row; y++)
for(x = 0; x < term.col; x++)
if(term.line[y][x].state & GLYPH_SET)
xdrawc(x, y, term.line[y][x]);
if(!term.hidec)
xcursor(CURSOR_DRAW);
}
#endif
void
draw(int redraw_all) {
int i, x, y, ox;
Glyph base, new;
char buf[DRAW_BUF_SIZ];
/* XXX: optimize with GLYPH_DIRTY hint */
for(y = 0; y < term.row; y++) {
base = term.line[y][0];
i = ox = 0;
@ -1129,8 +1205,7 @@ draw(int redraw_all) {
}
xdraws(buf, base, ox, y, i);
}
if(!term.c.hidden)
xcursor(CURSOR_DRAW);
xcursor(term.hidec ? CURSOR_HIDE : CURSOR_DRAW);
}
void
@ -1179,7 +1254,7 @@ kpress(XEvent *ev) {
break;
case XK_Insert:
if(shift)
/* XXX: paste X clipboard */;
draw(1), puts("draw!")/* XXX: paste X clipboard */;
break;
default:
fprintf(stderr, "errkey: %d\n", (int)ksym);

Write Preview
Loading…
Cancel
Save