[wiki] [sites] st: update scrollback patch || Quentin Rameau
commit e6bca4cf6972e6a449d9760890954aa0411e3c49
Author: Quentin Rameau <quinq_AT_fifth.space>
Date: Fri Jul 17 11:40:29 2015 +0200
st: update scrollback patch
Updated scrollback patch bellow. Applies against latest master
(d032b61).
Cannot clone wiki (timeout). If someone is able to, please update.
Thanks.
Martin Kopta <martin_AT_kopta.eu>
diff --git a/st.suckless.org/patches/st-scrollback.diff b/st.suckless.org/patches/st-scrollback.diff
index 746b83b..07d222c 100644
--- a/st.suckless.org/patches/st-scrollback.diff
+++ b/st.suckless.org/patches/st-scrollback.diff
_AT_@ -1,5 +1,5 @@
diff --git a/config.def.h b/config.def.h
-index bb5596e..2df4cbc 100644
+index e246e3c..ffabf3d 100644
--- a/config.def.h
+++ b/config.def.h
_AT_@ -7,6 +7,7 @@
_AT_@ -20,29 +20,31 @@ index bb5596e..2df4cbc 100644
/*
diff --git a/st.c b/st.c
-index 0c6b9c3..ab56435 100644
+index 64e2cec..9cc71c3 100644
--- a/st.c
+++ b/st.c
-_AT_@ -83,6 +83,8 @@ char *argv0;
- #define TRUERED(x) (((x) & 0xff0000) >> 8)
- #define TRUEGREEN(x) (((x) & 0xff00))
- #define TRUEBLUE(x) (((x) & 0xff) << 8)
-+#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - term.scr \
-+ + histsize + 1) % histsize] : term.line[(y) - term.scr])
+_AT_@ -84,6 +84,8 @@ char *argv0;
+ #define TRUERED(x) (((x) & 0xff0000) >> 8)
+ #define TRUEGREEN(x) (((x) & 0xff00))
+ #define TRUEBLUE(x) (((x) & 0xff) << 8)
++#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - term.scr \
++ + histsize + 1) % histsize] : term.line[(y) - term.scr])
enum glyph_attribute {
-_AT_@ -231,6 +233,9 @@ typedef struct {
+_AT_@ -232,7 +234,10 @@ typedef struct {
int col; /* nb col */
Line *line; /* screen */
Line *alt; /* alternate screen */
+- int *dirty; /* dirtyness of lines */
+ Line *hist; /* history buffer */
+ int histi; /* history index */
+ int scr; /* scroll back */
- bool *dirty; /* dirtyness of lines */
++ int *dirty; /* dirtyness of lines */
XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
TCursor c; /* cursor */
-_AT_@ -324,6 +329,8 @@ typedef struct {
+ int top; /* top scroll limit */
+_AT_@ -325,6 +330,8 @@ typedef struct {
/* function definitions used in config.h */
static void clipcopy(const Arg *);
static void clippaste(const Arg *);
_AT_@ -51,45 +53,45 @@ index 0c6b9c3..ab56435 100644
static void numlock(const Arg *);
static void selpaste(const Arg *);
static void xzoom(const Arg *);
-_AT_@ -395,8 +402,8 @@ static void tputtab(int);
+_AT_@ -396,8 +403,8 @@ static void tputtab(int);
static void tputc(Rune);
static void treset(void);
static void tresize(int, int);
-static void tscrollup(int, int);
-static void tscrolldown(int, int);
-+static void tscrollup(int, int, bool);
-+static void tscrolldown(int, int, bool);
++static void tscrollup(int, int, int);
++static void tscrolldown(int, int, int);
static void tsetattr(int *, int);
static void tsetchar(Rune, Glyph *, int, int);
static void tsetscroll(int, int);
-_AT_@ -682,10 +689,10 @@ int
- tlinelen(int y) {
+_AT_@ -726,10 +733,10 @@ tlinelen(int y)
+ {
int i = term.col;
-- if(term.line[y][i - 1].mode & ATTR_WRAP)
-+ if(TLINE(y)[i - 1].mode & ATTR_WRAP)
+- if (term.line[y][i - 1].mode & ATTR_WRAP)
++ if (TLINE(y)[i - 1].mode & ATTR_WRAP)
return i;
-- while(i > 0 && term.line[y][i - 1].u == ' ')
-+ while(i > 0 && TLINE(y)[i - 1].u == ' ')
+- while (i > 0 && term.line[y][i - 1].u == ' ')
++ while (i > 0 && TLINE(y)[i - 1].u == ' ')
--i;
return i;
-_AT_@ -744,7 +751,7 @@ selsnap(int *x, int *y, int direction) {
+_AT_@ -791,7 +798,7 @@ selsnap(int *x, int *y, int direction)
* Snap around if the word wraps around at the end or
* beginning of a line.
*/
- prevgp = &term.line[*y][*x];
+ prevgp = &TLINE(*y)[*x];
prevdelim = ISDELIM(prevgp->u);
- for(;;) {
+ for (;;) {
newx = *x + direction;
-_AT_@ -759,14 +766,14 @@ selsnap(int *x, int *y, int direction) {
+_AT_@ -806,14 +813,14 @@ selsnap(int *x, int *y, int direction)
yt = *y, xt = *x;
else
yt = newy, xt = newx;
-- if(!(term.line[yt][xt].mode & ATTR_WRAP))
-+ if(!(TLINE(yt)[xt].mode & ATTR_WRAP))
+- if (!(term.line[yt][xt].mode & ATTR_WRAP))
++ if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
break;
}
_AT_@ -99,29 +101,29 @@ index 0c6b9c3..ab56435 100644
- gp = &term.line[newy][newx];
+ gp = &TLINE(newy)[newx];
delim = ISDELIM(gp->u);
- if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
+ if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|| (delim && gp->u != prevgp->u)))
-_AT_@ -787,14 +794,14 @@ selsnap(int *x, int *y, int direction) {
+_AT_@ -834,14 +841,14 @@ selsnap(int *x, int *y, int direction)
*x = (direction < 0) ? 0 : term.col - 1;
- if(direction < 0) {
- for(; *y > 0; *y += direction) {
-- if(!(term.line[*y-1][term.col-1].mode
-+ if(!(TLINE(*y-1)[term.col-1].mode
+ if (direction < 0) {
+ for (; *y > 0; *y += direction) {
+- if (!(term.line[*y-1][term.col-1].mode
++ if (!(TLINE(*y-1)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
}
- } else if(direction > 0) {
- for(; *y < term.row-1; *y += direction) {
-- if(!(term.line[*y][term.col-1].mode
-+ if(!(TLINE(*y)[term.col-1].mode
+ } else if (direction > 0) {
+ for (; *y < term.row-1; *y += direction) {
+- if (!(term.line[*y][term.col-1].mode
++ if (!(TLINE(*y)[term.col-1].mode
& ATTR_WRAP)) {
break;
}
-_AT_@ -953,13 +960,13 @@ getsel(void) {
+_AT_@ -1004,13 +1011,13 @@ getsel(void)
linelen = tlinelen(y);
- if(sel.type == SEL_RECTANGULAR) {
+ if (sel.type == SEL_RECTANGULAR) {
- gp = &term.line[y][sel.nb.x];
+ gp = &TLINE(y)[sel.nb.x];
lastx = sel.ne.x;
_AT_@ -132,41 +134,43 @@ index 0c6b9c3..ab56435 100644
}
- last = &term.line[y][MIN(lastx, linelen-1)];
+ last = &TLINE(y)[MIN(lastx, linelen-1)];
- while(last >= gp && last->u == ' ')
+ while (last >= gp && last->u == ' ')
--last;
-_AT_@ -1362,10 +1369,16 @@ ttyread(void) {
+_AT_@ -1484,6 +1491,8 @@ ttyread(void)
/* keep any uncomplete utf8 char for the next call */
memmove(buf, ptr, buflen);
-+ if(term.scr > 0 && term.scr < histsize-1)
++ if (term.scr > 0 && term.scr < histsize-1)
+ term.scr++;
}
void
- ttywrite(const char *s, size_t n) {
+_AT_@ -1492,6 +1501,9 @@ ttywrite(const char *s, size_t n)
+ fd_set wfd;
+ struct timespec tv;
+ ssize_t r;
+ Arg arg = (Arg){ .i = term.scr };
+
+ kscrolldown(&arg);
-+
- if(xwrite(cmdfd, s, n) == -1)
- die("write error on tty: %s
", strerror(errno));
- }
-_AT_@ -1500,13 +1513,52 @@ tswapscreen(void) {
+
+ /*
+ * Remember that we are using a pty, which might be a modem line.
+_AT_@ -1682,13 +1694,51 @@ tswapscreen(void)
}
void
--tscrolldown(int orig, int n) {
+-tscrolldown(int orig, int n)
+kscrolldown(const Arg* a) {
+ int n = a->i;
+
-+ if(n < 0)
++ if (n < 0)
+ n = term.row + n;
+
-+ if(n > term.scr)
++ if (n > term.scr)
+ n = term.scr;
+
-+ if(term.scr > 0) {
++ if (term.scr > 0) {
+ term.scr -= n;
+ selscroll(0, -n);
+ tfulldirt();
_AT_@ -177,10 +181,10 @@ index 0c6b9c3..ab56435 100644
+kscrollup(const Arg* a) {
+ int n = a->i;
+
-+ if(n < 0)
++ if (n < 0)
+ n = term.row + n;
+
-+ if(term.scr <= histsize - n) {
++ if (term.scr <= histsize - n) {
+ term.scr += n;
+ selscroll(0, n);
+ tfulldirt();
_AT_@ -188,13 +192,14 @@ index 0c6b9c3..ab56435 100644
+}
+
+void
-+tscrolldown(int orig, int n, bool copyhist) {
++tscrolldown(int orig, int n, int copyhist)
+ {
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
-+ if(copyhist) {
++ if (copyhist) {
+ term.histi = (term.histi - 1 + histsize) % histsize;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[term.bot];
_AT_@ -202,22 +207,21 @@ index 0c6b9c3..ab56435 100644
+ }
+
tsetdirt(orig, term.bot-n);
-+
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
- for(i = term.bot; i >= orig+n; i--) {
-_AT_@ -1519,12 +1571,19 @@ tscrolldown(int orig, int n) {
+_AT_@ -1702,13 +1752,20 @@ tscrolldown(int orig, int n)
}
void
--tscrollup(int orig, int n) {
-+tscrollup(int orig, int n, bool copyhist) {
+-tscrollup(int orig, int n)
++tscrollup(int orig, int n, int copyhist)
+ {
int i;
Line temp;
LIMIT(n, 0, term.bot-orig+1);
-+ if(copyhist) {
++ if (copyhist) {
+ term.histi = (term.histi + 1) % histsize;
+ temp = term.hist[term.histi];
+ term.hist[term.histi] = term.line[orig];
_AT_@ -227,92 +231,94 @@ index 0c6b9c3..ab56435 100644
tclearregion(0, orig, term.col-1, orig+n-1);
tsetdirt(orig+n, term.bot);
-_AT_@ -1571,7 +1630,7 @@ tnewline(int first_col) {
+_AT_@ -1757,7 +1814,7 @@ tnewline(int first_col)
int y = term.c.y;
- if(y == term.bot) {
+ if (y == term.bot) {
- tscrollup(term.top, 1);
-+ tscrollup(term.top, 1, true);
++ tscrollup(term.top, 1, 1);
} else {
y++;
}
-_AT_@ -1728,13 +1787,13 @@ tinsertblank(int n) {
- void
- tinsertblankline(int n) {
- if(BETWEEN(term.c.y, term.top, term.bot))
+_AT_@ -1922,14 +1979,14 @@ void
+ tinsertblankline(int n)
+ {
+ if (BETWEEN(term.c.y, term.top, term.bot))
- tscrolldown(term.c.y, n);
-+ tscrolldown(term.c.y, n, false);
++ tscrolldown(term.c.y, n, 0);
}
void
- tdeleteline(int n) {
- if(BETWEEN(term.c.y, term.top, term.bot))
+ tdeleteline(int n)
+ {
+ if (BETWEEN(term.c.y, term.top, term.bot))
- tscrollup(term.c.y, n);
-+ tscrollup(term.c.y, n, false);
++ tscrollup(term.c.y, n, 0);
}
int32_t
-_AT_@ -2163,11 +2222,11 @@ csihandle(void) {
+_AT_@ -2363,11 +2420,11 @@ csihandle(void)
break;
case 'S': /* SU -- Scroll <n> line up */
DEFAULT(csiescseq.arg[0], 1);
- tscrollup(term.top, csiescseq.arg[0]);
-+ tscrollup(term.top, csiescseq.arg[0], false);
++ tscrollup(term.top, csiescseq.arg[0], 0);
break;
case 'T': /* SD -- Scroll <n> line down */
DEFAULT(csiescseq.arg[0], 1);
- tscrolldown(term.top, csiescseq.arg[0]);
-+ tscrolldown(term.top, csiescseq.arg[0], false);
++ tscrolldown(term.top, csiescseq.arg[0], 0);
break;
case 'L': /* IL -- Insert <n> blank lines */
DEFAULT(csiescseq.arg[0], 1);
-_AT_@ -2617,7 +2676,7 @@ eschandle(uchar ascii) {
+_AT_@ -2837,7 +2894,7 @@ eschandle(uchar ascii)
return 0;
case 'D': /* IND -- Linefeed */
- if(term.c.y == term.bot) {
+ if (term.c.y == term.bot) {
- tscrollup(term.top, 1);
-+ tscrollup(term.top, 1, true);
++ tscrollup(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y+1);
}
-_AT_@ -2630,7 +2689,7 @@ eschandle(uchar ascii) {
+_AT_@ -2850,7 +2907,7 @@ eschandle(uchar ascii)
break;
case 'M': /* RI -- Reverse index */
- if(term.c.y == term.top) {
+ if (term.c.y == term.top) {
- tscrolldown(term.top, 1);
-+ tscrolldown(term.top, 1, true);
++ tscrolldown(term.top, 1, 1);
} else {
tmoveto(term.c.x, term.c.y-1);
}
-_AT_@ -2791,7 +2850,7 @@ tputc(Rune u) {
-
+_AT_@ -3013,7 +3070,7 @@ tputc(Rune u)
void
- tresize(int col, int row) {
+ tresize(int col, int row)
+ {
- int i;
+ int i, j;
int minrow = MIN(row, term.row);
int mincol = MIN(col, term.col);
- bool *bp;
-_AT_@ -2828,9 +2887,18 @@ tresize(int col, int row) {
+ int *bp;
+_AT_@ -3050,9 +3107,19 @@ tresize(int col, int row)
/* resize to new height */
term.line = xrealloc(term.line, row * sizeof(Line));
term.alt = xrealloc(term.alt, row * sizeof(Line));
+ term.hist = xrealloc(term.hist, histsize * sizeof(Line));
++ term.hist = xrealloc(term.hist, histsize * sizeof(Line));
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
-+ for(i = 0; i < histsize; i++) {
++ for (i = 0; i < histsize; i++) {
+ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
-+ for(j = mincol; j < col; j++) {
++ for (j = mincol; j < col; j++) {
+ term.hist[i][j] = term.c.attr;
+ term.hist[i][j].u = ' ';
+ }
+ }
+
/* resize each row to new width, zero-pad if needed */
- for(i = 0; i < minrow; i++) {
+ for (i = 0; i < minrow; i++) {
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
-_AT_@ -3664,11 +3732,11 @@ drawregion(int x1, int y1, int x2, int y2) {
+_AT_@ -3912,11 +3979,11 @@ drawregion(int x1, int y1, int x2, int y2)
term.dirty[y] = 0;
specs = term.specbuf;
_AT_@ -320,19 +326,20 @@ index 0c6b9c3..ab56435 100644
+ numspecs = xmakeglyphfontspecs(specs, &TLINE(y)[x1], x2 - x1, x1, y);
i = ox = 0;
- for(x = x1; x < x2 && i < numspecs; x++) {
+ for (x = x1; x < x2 && i < numspecs; x++) {
- new = term.line[y][x];
+ new = TLINE(y)[x];
- if(new.mode == ATTR_WDUMMY)
+ if (new.mode == ATTR_WDUMMY)
continue;
- if(ena_sel && selected(x, y))
-_AT_@ -3688,7 +3756,8 @@ drawregion(int x1, int y1, int x2, int y2) {
- if(i > 0)
+ if (ena_sel && selected(x, y))
+_AT_@ -3936,7 +4003,8 @@ drawregion(int x1, int y1, int x2, int y2)
+ if (i > 0)
xdrawglyphfontspecs(specs, base, i, ox, y);
}
- xdrawcursor();
-+ if(term.scr == 0)
++ if (term.scr == 0)
+ xdrawcursor();
}
void
+
Received on Fri Jul 17 2015 - 11:44:56 CEST
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: Fri Jul 17 2015 - 11:48:10 CEST