diff options
Diffstat (limited to 'config/st-scrollback-0.7.diff')
| -rw-r--r-- | config/st-scrollback-0.7.diff | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/config/st-scrollback-0.7.diff b/config/st-scrollback-0.7.diff new file mode 100644 index 0000000..3f23f87 --- /dev/null +++ b/config/st-scrollback-0.7.diff @@ -0,0 +1,387 @@ +diff --git a/config.def.h b/config.def.h +index b41747f..eae969e 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -7,6 +7,7 @@ + */ + static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true"; + static int borderpx = 2; ++#define histsize 2000 + + /* + * What program is execed by st depends of these precedence rules: +@@ -172,6 +173,8 @@ static Shortcut shortcuts[] = { + { MODKEY|ShiftMask, XK_C, clipcopy, {.i = 0} }, + { MODKEY|ShiftMask, XK_V, clippaste, {.i = 0} }, + { MODKEY, XK_Num_Lock, numlock, {.i = 0} }, ++ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, ++ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + }; + + /* +diff --git a/st.c b/st.c +index 2594c65..233d301 100644 +--- a/st.c ++++ b/st.c +@@ -86,6 +86,8 @@ 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 { +@@ -228,26 +230,6 @@ typedef struct { + 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 */ +- int *dirty; /* dirtyness of lines */ +- XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */ +- TCursor c; /* cursor */ +- int top; /* top scroll limit */ +- int bot; /* bottom scroll limit */ +- int mode; /* terminal mode flags */ +- int esc; /* escape state flags */ +- char trantbl[4]; /* charset table translation */ +- int charset; /* current charset */ +- int icharset; /* selected charset for sequence */ +- int numlock; /* lock numbers in keyboard */ +- int *tabs; +-} Term; +- + /* Purely graphic info */ + typedef struct { + Display *dpy; +@@ -327,6 +309,8 @@ typedef struct { + /* function definitions used in config.h */ + static void clipcopy(const Arg *); + static void clippaste(const Arg *); ++static void kscrolldown(const Arg *); ++static void kscrollup(const Arg *); + static void numlock(const Arg *); + static void selpaste(const Arg *); + static void xzoom(const Arg *); +@@ -340,6 +324,29 @@ static void sendbreak(const Arg *); + /* Config.h for applying patches and the configuration. */ + #include "config.h" + ++/* Internal representation of the screen */ ++typedef struct { ++ int row; /* nb row */ ++ int col; /* nb col */ ++ Line *line; /* screen */ ++ Line *alt; /* alternate screen */ ++ Line hist[histsize]; /* history buffer */ ++ int histi; /* history index */ ++ int scr; /* scroll back */ ++ int *dirty; /* dirtyness of lines */ ++ XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */ ++ TCursor c; /* cursor */ ++ int top; /* top scroll limit */ ++ int bot; /* bottom scroll limit */ ++ int mode; /* terminal mode flags */ ++ int esc; /* escape state flags */ ++ char trantbl[4]; /* charset table translation */ ++ int charset; /* current charset */ ++ int icharset; /* selected charset for sequence */ ++ int numlock; /* lock numbers in keyboard */ ++ int *tabs; ++} Term; ++ + /* Font structure */ + typedef struct { + int height; +@@ -399,8 +406,8 @@ 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, int); ++static void tscrolldown(int, int, int); + static void tsetattr(int *, int); + static void tsetchar(Rune, Glyph *, int, int); + static void tsetscroll(int, int); +@@ -731,10 +738,10 @@ tlinelen(int y) + { + int i = term.col; + +- if (term.line[y][i - 1].mode & ATTR_WRAP) ++ if (TLINE(y)[i - 1].mode & ATTR_WRAP) + return i; + +- while (i > 0 && term.line[y][i - 1].u == ' ') ++ while (i > 0 && TLINE(y)[i - 1].u == ' ') + --i; + + return i; +@@ -796,7 +803,7 @@ 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 (;;) { + newx = *x + direction; +@@ -811,14 +818,14 @@ 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)) + break; + } + + if (newx >= tlinelen(newy)) + break; + +- gp = &term.line[newy][newx]; ++ gp = &TLINE(newy)[newx]; + delim = ISDELIM(gp->u); + if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim + || (delim && gp->u != prevgp->u))) +@@ -839,14 +846,14 @@ 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 + & 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 + & ATTR_WRAP)) { + break; + } +@@ -1012,13 +1019,13 @@ getsel(void) + } + + if (sel.type == SEL_RECTANGULAR) { +- gp = &term.line[y][sel.nb.x]; ++ gp = &TLINE(y)[sel.nb.x]; + lastx = sel.ne.x; + } else { +- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; ++ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; + lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; + } +- last = &term.line[y][MIN(lastx, linelen-1)]; ++ last = &TLINE(y)[MIN(lastx, linelen-1)]; + while (last >= gp && last->u == ' ') + --last; + +@@ -1490,6 +1497,9 @@ ttyread(void) + /* keep any uncomplete utf8 char for the next call */ + memmove(buf, ptr, buflen); + ++ if (term.scr > 0 && term.scr < histsize-1) ++ term.scr++; ++ + return ret; + } + +@@ -1499,6 +1509,9 @@ ttywrite(const char *s, size_t n) + fd_set wfd, rfd; + ssize_t r; + size_t lim = 256; ++ Arg arg = (Arg){ .i = term.scr }; ++ ++ kscrolldown(&arg); + + /* + * Remember that we are using a pty, which might be a modem line. +@@ -1690,13 +1703,53 @@ tswapscreen(void) + } + + void +-tscrolldown(int orig, int n) ++kscrolldown(const Arg* a) ++{ ++ int n = a->i; ++ ++ if (n < 0) ++ n = term.row + n; ++ ++ if (n > term.scr) ++ n = term.scr; ++ ++ if (term.scr > 0) { ++ term.scr -= n; ++ selscroll(0, -n); ++ tfulldirt(); ++ } ++} ++ ++void ++kscrollup(const Arg* a) ++{ ++ int n = a->i; ++ ++ if (n < 0) ++ n = term.row + n; ++ ++ if (term.scr <= histsize - n) { ++ term.scr += n; ++ selscroll(0, n); ++ tfulldirt(); ++ } ++} ++ ++void ++tscrolldown(int orig, int n, int copyhist) + { + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); + ++ if (copyhist) { ++ term.histi = (term.histi - 1 + histsize) % histsize; ++ temp = term.hist[term.histi]; ++ term.hist[term.histi] = term.line[term.bot]; ++ term.line[term.bot] = temp; ++ } ++ + tsetdirt(orig, term.bot-n); + tclearregion(0, term.bot-n+1, term.col-1, term.bot); + +@@ -1710,13 +1763,20 @@ tscrolldown(int orig, int n) + } + + void +-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) { ++ term.histi = (term.histi + 1) % histsize; ++ temp = term.hist[term.histi]; ++ term.hist[term.histi] = term.line[orig]; ++ term.line[orig] = temp; ++ } ++ + tclearregion(0, orig, term.col-1, orig+n-1); + tsetdirt(orig+n, term.bot); + +@@ -1765,7 +1825,7 @@ tnewline(int first_col) + int y = term.c.y; + + if (y == term.bot) { +- tscrollup(term.top, 1); ++ tscrollup(term.top, 1, 1); + } else { + y++; + } +@@ -1930,14 +1990,14 @@ void + tinsertblankline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrolldown(term.c.y, n); ++ tscrolldown(term.c.y, n, 0); + } + + void + tdeleteline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrollup(term.c.y, n); ++ tscrollup(term.c.y, n, 0); + } + + int32_t +@@ -2371,11 +2431,11 @@ 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], 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], 0); + break; + case 'L': /* IL -- Insert <n> blank lines */ + DEFAULT(csiescseq.arg[0], 1); +@@ -2871,7 +2931,7 @@ eschandle(uchar ascii) + return 0; + case 'D': /* IND -- Linefeed */ + if (term.c.y == term.bot) { +- tscrollup(term.top, 1); ++ tscrollup(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y+1); + } +@@ -2884,7 +2944,7 @@ eschandle(uchar ascii) + break; + case 'M': /* RI -- Reverse index */ + if (term.c.y == term.top) { +- tscrolldown(term.top, 1); ++ tscrolldown(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y-1); + } +@@ -3047,7 +3107,7 @@ tputc(Rune u) + void + tresize(int col, int row) + { +- int i; ++ int i, j; + int minrow = MIN(row, term.row); + int mincol = MIN(col, term.col); + int *bp; +@@ -3087,6 +3147,14 @@ tresize(int col, int row) + term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); + term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); + ++ for (i = 0; i < histsize; i++) { ++ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph)); ++ 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++) { + term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); +@@ -3976,11 +4044,11 @@ drawregion(int x1, int y1, int x2, int y2) + term.dirty[y] = 0; + + specs = term.specbuf; +- numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y); ++ numspecs = xmakeglyphfontspecs(specs, &TLINE(y)[x1], x2 - x1, x1, y); + + i = ox = 0; + for (x = x1; x < x2 && i < numspecs; x++) { +- new = term.line[y][x]; ++ new = TLINE(y)[x]; + if (new.mode == ATTR_WDUMMY) + continue; + if (ena_sel && selected(x, y)) +@@ -4000,7 +4068,8 @@ drawregion(int x1, int y1, int x2, int y2) + if (i > 0) + xdrawglyphfontspecs(specs, base, i, ox, y); + } +- xdrawcursor(); ++ if (term.scr == 0) ++ xdrawcursor(); + } + + void |