st/st.c.rej

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--- st.c
+++ st.c
@@ -43,6 +44,8 @@
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
+static inline int max(int a, int b) { return a > b ? a : b; }
+static inline int min(int a, int b) { return a < b ? a : b; }
enum term_mode {
MODE_WRAP = 1 << 0,
@@ -585,119 +664,47 @@ selected(int x, int y)
return BETWEEN(y, sel.nb.y, sel.ne.y)
&& BETWEEN(x, sel.nb.x, sel.ne.x);
- return BETWEEN(y, sel.nb.y, sel.ne.y)
- && (y != sel.nb.y || x >= sel.nb.x)
- && (y != sel.ne.y || x <= sel.ne.x);
-}
-
-void
-selsnap(int *x, int *y, int direction)
-{
- int newx, newy, xt, yt;
- int delim, prevdelim;
- Glyph *gp, *prevgp;
-
- switch (sel.snap) {
- case SNAP_WORD:
- /*
- * Snap around if the word wraps around at the end or
- * beginning of a line.
- */
- prevgp = &term.line[*y][*x];
- prevdelim = ISDELIM(prevgp->u);
- for (;;) {
- newx = *x + direction;
- newy = *y;
- if (!BETWEEN(newx, 0, term.col - 1)) {
- newy += direction;
- newx = (newx + term.col) % term.col;
- if (!BETWEEN(newy, 0, term.row - 1))
- break;
-
- if (direction > 0)
- yt = *y, xt = *x;
- else
- yt = newy, xt = newx;
- if (!(term.line[yt][xt].mode & ATTR_WRAP))
- break;
- }
-
- if (newx >= tlinelen(newy))
- break;
-
- gp = &term.line[newy][newx];
- delim = ISDELIM(gp->u);
- if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
- || (delim && gp->u != prevgp->u)))
- break;
-
- *x = newx;
- *y = newy;
- prevgp = gp;
- prevdelim = delim;
- }
- break;
- case SNAP_LINE:
- /*
- * Snap around if the the previous line or the current one
- * has set ATTR_WRAP at its end. Then the whole next or
- * previous line will be selected.
- */
- *x = (direction < 0) ? 0 : term.col - 1;
- if (direction < 0) {
- for (; *y > 0; *y += direction) {
- if (!(term.line[*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
- & ATTR_WRAP)) {
- break;
- }
- }
- }
- break;
- }
+ return ((sel.nb.y > sel.ne.y) ? OUT(y, sel.nb.y, sel.ne.y)
+ : BETWEEN(y, sel.nb.y, sel.ne.y)) &&
+ (y != sel.nb.y || x >= sel.nb.x) &&
+ (y != sel.ne.y || x <= sel.ne.x);
}
char *
getsel(void)
{
char *str, *ptr;
- int y, bufsize, lastx, linelen;
+ int y, yy, bufsize, lastx;
Glyph *gp, *last;
if (sel.ob.x == -1)
return NULL;
- bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
+ int const start = sel.swap ? sel.oe.y : sel.ob.y, h = rows();
+ int endy = (sel.swap ? sel.ob.y : sel.oe.y);
+ for (; endy < start; endy += h);
+ Line * const cbuf = IS_SET(MODE_ALTSCREEN) ? term.line : buf;
+ bufsize = (term.col+1) * (endy-start+1 ) * UTF_SIZ;
+ assert(bufsize > 0);
ptr = str = xmalloc(bufsize);
/* append every set & selected glyph to the selection */
- for (y = sel.nb.y; y <= sel.ne.y; y++) {
- if ((linelen = tlinelen(y)) == 0) {
- *ptr++ = '\n';
- continue;
- }
+ for (y = start; y <= endy; y++) {
+ yy = y % h;
if (sel.type == SEL_RECTANGULAR) {
- gp = &term.line[y][sel.nb.x];
+ gp = &cbuf[yy][sel.nb.x];
lastx = sel.ne.x;
} else {
- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
- lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
+ gp = &cbuf[yy][start == y ? sel.nb.x : 0];
+ lastx = (endy == y) ? sel.ne.x : term.col-1;
}
- last = &term.line[y][MIN(lastx, linelen-1)];
- while (last >= gp && last->u == ' ')
- --last;
+ last = &cbuf[yy][lastx];
+ if (!(cbuf[yy][term.col - 1].mode & ATTR_WRAP))
+ while (last > gp && last->u == ' ') --last;
for ( ; gp <= last; ++gp) {
- if (gp->mode & ATTR_WDUMMY)
- continue;
-
+ if (gp->mode & ATTR_WDUMMY) continue;
ptr += utf8encode(gp->u, ptr);
}
@@ -2541,8 +2547,10 @@ void
tresize(int col, int row)
{
int i;
- int minrow = MIN(row, term.row);
- int mincol = MIN(col, term.col);
+ int const colSet = col, alt = IS_SET(MODE_ALTSCREEN), ini = buf == NULL;
+ col = MAX(col, buffCols);
+ row = MIN(row, buffSize);
+ int const minrow = MIN(row, term.row), mincol = MIN(col, buffCols);
int *bp;
TCursor c;
@@ -2559,48 +2568,54 @@ tresize(int col, int row)
* memmove because we're freeing the earlier lines
*/
for (i = 0; i <= term.c.y - row; i++) {
- free(term.line[i]);
free(term.alt[i]);
}
/* ensure that both src and dst are not NULL */
if (i > 0) {
- memmove(term.line, term.line + i, row * sizeof(Line));
memmove(term.alt, term.alt + i, row * sizeof(Line));
}
for (i += row; i < term.row; i++) {
- free(term.line[i]);
free(term.alt[i]);
}
/* resize to new height */
- term.line = xrealloc(term.line, row * sizeof(Line));
+ buf = xrealloc(buf, (buffSize + row) * sizeof(Line));
term.alt = xrealloc(term.alt, row * sizeof(Line));
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ mark = xrealloc(mark, col * row * sizeof(*mark));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
/* 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));
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
}
/* allocate any new rows */
for (/* i = minrow */; i < row; i++) {
- term.line[i] = xmalloc(col * sizeof(Glyph));
term.alt[i] = xmalloc(col * sizeof(Glyph));
}
- if (col > term.col) {
- bp = term.tabs + term.col;
+ if (col > buffCols) {
+ bp = term.tabs + buffCols;
- memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ memset(bp, 0, sizeof(*term.tabs) * (col - buffCols));
while (--bp > term.tabs && !*bp)
/* nothing */ ;
for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
*bp = 1;
}
+ Glyph g=(Glyph){.bg=term.c.attr.bg, .fg=term.c.attr.fg, .u=' ', .mode=0};
+ for (i = 0; i < buffSize; ++i) {
+ buf[i] = xrealloc(ini ? NULL : buf[i], col*sizeof(Glyph));
+ for (int j = ini ? 0 : buffCols; j < col; ++j) buf[i][j] = g;
+ }
+ for (i = 0; i < row; ++i) buf[buffSize + i] = buf[i];
+ term.line = &buf[*(histOp?&histOff:&insertOff) +=MAX(term.c.y-row+1,0)];
+ memset(mark, 0, col * row * sizeof(*mark));
/* update terminal size */
- term.col = col;
+ term.col = colSet;
+ buffCols = col;
term.row = row;
+ if (alt) tswapscreen();
/* reset scrolling region */
tsetscroll(0, row-1);
/* make use of the LIMIT in tmoveto */
@@ -2629,15 +2644,17 @@ resettitle(void)
void
drawregion(int x1, int y1, int x2, int y2)
{
+ if (altToggle && histMode && !histOp)
+ memset(term.dirty, 0, sizeof(*term.dirty) * term.row);
+ int const o = !IS_SET(MODE_ALTSCREEN) && histMode && !histOp, h =rows();
int y;
for (y = y1; y < y2; y++) {
- if (!term.dirty[y])
- continue;
-
- term.dirty[y] = 0;
- xdrawline(term.line[y], x1, y, x2);
+ int const oy = o ? (y + insertOff - histOff + h) % h : y;
+ if (!BETWEEN(oy, 0, term.row-1) || !term.dirty[y]) continue;
+ xdrawline(term.line[y], x1, oy, x2);
}
+ memset(&term.dirty[y1], 0, sizeof(*term.dirty) * (y2 - y1));
}
void
@@ -2656,7 +2673,9 @@ draw(void)
if (term.line[term.c.y][cx].mode & ATTR_WDUMMY)
cx--;
+ if (histMode) historyPreDraw();
drawregion(0, 0, term.col, term.row);
+ if (!histMode)
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx;