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Scrollback + wheel support

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This commit is contained in:
Shiva 2017-01-29 21:39:12 -08:00
parent 6833411400
commit 10bf3c8507
2 changed files with 122 additions and 27 deletions
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12
config.def.h
View file

@ -156,8 +156,14 @@ static unsigned int defaultattr = 11;
*/
static MouseShortcut mshortcuts[] = {
/* button mask string */
{ Button4, XK_ANY_MOD, "\031" },
{ Button5, XK_ANY_MOD, "\005" },
{ Button4, XK_NO_MOD, "\031" },
{ Button5, XK_NO_MOD, "\005" },
};
static MouseKey mkeys[] = {
/* button mask function argument */
{ Button4, ShiftMask, kscrollup, {.i = 1} },
{ Button5, ShiftMask, kscrolldown, {.i = 1} },
};
/* Internal keyboard shortcuts. */
@ -178,6 +184,8 @@ static Shortcut shortcuts[] = {
{ MODKEY|ShiftMask, XK_V, clippaste, {.i = 0} },
{ MODKEY, XK_Num_Lock, numlock, {.i = 0} },
{ MODKEY, XK_Control_L, iso14755, {.i = 0} },
{ ShiftMask, XK_Page_Up, kscrollup, {.i = -1} },
{ ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} },
};
/*

137
st.c
View file

@ -61,6 +61,7 @@ char *argv0;
#define XK_ANY_MOD UINT_MAX
#define XK_NO_MOD 0
#define XK_SWITCH_MOD (1<<13)
#define histsize 2000
/* macros */
#define MIN(a, b) ((a) < (b) ? (a) : (b))
@ -87,6 +88,8 @@ 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])
/* constants */
#define ISO14755CMD "dmenu -w %lu -p codepoint: </dev/null"
@ -241,6 +244,9 @@ typedef struct {
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 */
@ -324,6 +330,13 @@ typedef union {
const void *v;
} Arg;
typedef struct {
uint b;
uint mask;
void (*func)(const Arg *);
const Arg arg;
} MouseKey;
typedef struct {
uint mod;
KeySym keysym;
@ -334,6 +347,8 @@ 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 *);
@ -409,8 +424,8 @@ 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);
@ -742,10 +757,10 @@ 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;
@ -807,7 +822,7 @@ 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;
@ -822,14 +837,14 @@ 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)))
@ -850,14 +865,14 @@ 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;
}
@ -957,6 +972,7 @@ bpress(XEvent *e)
{
struct timespec now;
MouseShortcut *ms;
MouseKey *mk;
if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
mousereport(e);
@ -971,6 +987,14 @@ bpress(XEvent *e)
}
}
for (mk = mkeys; mk < mkeys + LEN(mkeys); mk++) {
if (e->xbutton.button == mk->b
&& match(mk->mask, e->xbutton.state)) {
mk->func(&mk->arg);
return;
}
}
if (e->xbutton.button == Button1) {
clock_gettime(CLOCK_MONOTONIC, &now);
@ -1023,13 +1047,13 @@ 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;
@ -1515,6 +1539,9 @@ ttyread(void)
if (buflen > 0)
memmove(buf, ptr, buflen);
if (term.scr > 0 && term.scr < histsize-1)
term.scr++;
return ret;
}
@ -1524,6 +1551,9 @@ 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.
@ -1726,13 +1756,53 @@ 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);
@ -1746,13 +1816,20 @@ 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);
@ -1801,7 +1878,7 @@ tnewline(int first_col)
int y = term.c.y;
if (y == term.bot) {
tscrollup(term.top, 1);
tscrollup(term.top, 1, 1);
} else {
y++;
}
@ -1966,14 +2043,14 @@ 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
@ -2407,11 +2484,11 @@ 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);
@ -2947,7 +3024,7 @@ 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);
}
@ -2960,7 +3037,7 @@ 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);
}
@ -3147,7 +3224,7 @@ check_control_code:
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;
@ -3187,6 +3264,14 @@ 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));
@ -4114,11 +4199,11 @@ 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))
@ -4138,7 +4223,9 @@ 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