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Adding scrolloff option.

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Bruce Hill 2019-05-08 19:38:32 -07:00 committed by Arun Prakash Jana
parent bd653ac91e
commit b5272a3973
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GPG key ID: A75979F35C080412
2 changed files with 38 additions and 36 deletions
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2
Makefile
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@ -18,7 +18,7 @@ else
LDLIBS_CURSES ?= -lncurses
endif
CFLAGS += -Wall -Wextra -Wno-unused-parameter -Wno-format-truncation
CFLAGS += -Wall -Wextra -Wno-unused-parameter
CFLAGS += $(CFLAGS_OPTIMIZATION)
CFLAGS += $(CFLAGS_CURSES)

70
src/nnn.c
View file

@ -133,6 +133,7 @@
#define DOT_FILTER_LEN 7
#define ASCII_MAX 128
#define EXEC_ARGS_MAX 8
#define SCROLLOFF 5
/* Entry flags */
#define DIR_OR_LINK_TO_DIR 0x1
@ -272,7 +273,7 @@ static context g_ctx[CTX_MAX] __attribute__ ((aligned));
static struct entry *dents;
static char *pnamebuf, *pcopybuf;
static int ndents, cur, total_dents = ENTRY_INCR;
static int ndents, cur, curscroll, total_dents = ENTRY_INCR;
static int xlines, xcols;
static uint idle;
static uint idletimeout, copybufpos, copybuflen;
@ -1655,6 +1656,8 @@ end:
if (*ch != '\t')
g_ctx[cfg.curctx].c_fltr[0] = g_ctx[cfg.curctx].c_fltr[1] = '\0';
curscroll = MAX(0, cur - SCROLLOFF);
curs_set(FALSE);
settimeout();
@ -2067,9 +2070,9 @@ static char *coolsize(off_t size)
}
if (i > 0 && i < 6)
snprintf(size_buf, 12, "%lu.%0*lu%c", size, i, rem, U[i]);
snprintf(size_buf, 12, "%lu.%0*lu%c", (ulong)size, i, (ulong)rem, U[i]);
else
snprintf(size_buf, 12, "%lu%c", size, U[i]);
snprintf(size_buf, 12, "%lu%c", (ulong)size, U[i]);
return size_buf;
}
@ -2882,6 +2885,8 @@ static void populate(char *path, char *lastname)
cur = 0;
else
cur = dentfind(lastname, ndents);
curscroll = MAX(0, cur - SCROLLOFF);
}
static void redraw(char *path)
@ -2890,8 +2895,9 @@ static void redraw(char *path)
xcols = COLS;
int ncols = (xcols <= PATH_MAX) ? xcols : PATH_MAX;
int lastln = xlines;
int nlines = MIN(lastln - 4, ndents), i, attrs;
int lastln = xlines, onscreen = xlines - 4;
int scrolloff = MIN(SCROLLOFF, onscreen >> 1);
int i, attrs;
char buf[12];
char c;
@ -2900,6 +2906,13 @@ static void redraw(char *path)
/* Clear screen */
erase();
if (ndents <= onscreen)
curscroll = 0;
else if (cur < curscroll + scrolloff)
curscroll = MAX(0, cur - scrolloff);
else if (cur > curscroll + onscreen - scrolloff - 1)
curscroll = MIN(ndents - onscreen, cur - onscreen + scrolloff + 1);
#ifdef DIR_LIMITED_COPY
if (cfg.copymode)
if (g_crc != crc8fast((uchar *)dents, ndents * sizeof(struct entry))) {
@ -2965,17 +2978,7 @@ static void redraw(char *path)
}
/* Print listing */
if (cur < (nlines >> 1)) {
for (i = 0; i < nlines; ++i)
printptr(&dents[i], i == cur, ncols);
} else if (cur >= ndents - (nlines >> 1)) {
for (i = ndents - nlines; i < ndents; ++i)
printptr(&dents[i], i == cur, ncols);
} else {
const int odd = ISODD(nlines);
nlines >>= 1;
for (i = cur - nlines; i < cur + nlines + odd; ++i)
for (i = curscroll; i < ndents && i < curscroll + onscreen; ++i) {
printptr(&dents[i], i == cur, ncols);
}
@ -3026,7 +3029,7 @@ static void browse(char *ipath)
char mark[PATH_MAX] __attribute__ ((aligned));
char rundir[PATH_MAX] __attribute__ ((aligned));
char runfile[NAME_MAX + 1] __attribute__ ((aligned));
int r = -1, fd, presel, ncp = 0, copystartid = 0, copyendid = 0;
int r = -1, fd, presel, ncp = 0, copystartid = 0, copyendid = 0, onscreen;
enum action sel;
bool dir_changed = FALSE;
struct stat sb;
@ -3136,7 +3139,7 @@ nochange:
// Handle clicking on a context at the top:
if (event.y == 0) {
// Get context from: "[1 2 3 4]..."
r = event.x/2;
r = event.x >> 1;
if (event.x != 1 + (r << 1))
goto nochange; // The character after the context number
@ -3157,10 +3160,7 @@ nochange:
// Handle clicking on a file:
if (2 <= event.y && event.y < xlines - 2) {
// Get index of the first file listed on-screen:
r = MAX(0, MIN(cur - ((xlines - 4) >> 1), ndents - (xlines - 4)));
// Add the mouse click position to get the clicked file:
r += event.y - 2;
r = curscroll + (event.y - 2);
if (r >= ndents)
goto nochange;
@ -3274,21 +3274,23 @@ nochange:
/* Roll over, set cursor to last entry */
cur = ndents - 1;
break;
case SEL_PGDN:
if (cur < ndents - 1)
cur += MIN((xlines - 4), ndents - 1 - cur);
break;
case SEL_PGUP:
if (cur > 0)
cur -= MIN((xlines - 4), cur);
break;
case SEL_PGDN: // fallthrough
case SEL_CTRL_D:
if (cur < ndents - 1)
cur += MIN((xlines - 4) / 2, ndents - 1 - cur);
onscreen = xlines - 4;
r = sel == SEL_PGDN ? onscreen - 1 : onscreen >> 1;
curscroll = MIN(ndents - onscreen, curscroll + r);
cur = (curscroll == ndents - onscreen) ? cur + r :
curscroll + MIN(SCROLLOFF, onscreen >> 1);
cur = MIN(ndents - 1, cur);
break;
case SEL_PGUP: // fallthrough
case SEL_CTRL_U:
if (cur > 0)
cur -= MIN((xlines - 4) / 2, cur);
onscreen = xlines - 4;
r = sel == SEL_PGUP ? onscreen - 1 : onscreen >> 1;
curscroll = MAX(0, curscroll - r);
cur = (curscroll == 0) ? cur - r :
curscroll + onscreen - MIN(SCROLLOFF, onscreen >> 1) - 1;
cur = MAX(0, cur);
break;
case SEL_HOME:
cur = 0;