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	st-columnredraw-20241119-fb8569b.diff (2073B)
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	1 From fb8569b193cc063ad53388e8e2009fb6682092d2 Mon Sep 17 00:00:00 2001
	2 From: elbachir-one <[email protected]>
	3 Date: Tue, 19 Nov 2024 15:39:16 +0100
	4 Subject: [PATCH] Added columnredraw
	5
	6 ---
	7 st.c \| 25 +++++++++++++++++--------
	8 1 file changed, 17 insertions(+), 8 deletions(-)
	9
	10 diff --git a/st.c b/st.c
	11 index 57c6e96..7371554 100644
	12 --- a/st.c
	13 +++ b/st.c
	14 @@ -113,6 +113,7 @@ typedef struct {
	15 typedef struct {
	16 int row; /* nb row */
	17 int col; /* nb col */
	18 + int maxcol; /* Maximum number of columns */
	19 Line line; / screen */
	20 Line alt; / alternate screen */
	21 int dirty; / dirtyness of lines */
	22 @@ -1231,8 +1232,8 @@ tclearregion(int x1, int y1, int x2, int y2)
	23 if (y1 > y2)
	24 temp = y1, y1 = y2, y2 = temp;
	25
	26 - LIMIT(x1, 0, term.col-1);
	27 - LIMIT(x2, 0, term.col-1);
	28 + LIMIT(x1, 0, term.maxcol-1);
	29 + LIMIT(x2, 0, term.maxcol-1);
	30 LIMIT(y1, 0, term.row-1);
	31 LIMIT(y2, 0, term.row-1);
	32
	33 @@ -2546,11 +2547,18 @@ void
	34 tresize(int col, int row)
	35 {
	36 int i;
	37 - int minrow = MIN(row, term.row);
	38 - int mincol = MIN(col, term.col);
	39 + int tmp;
	40 + int minrow, mincol;
	41 int *bp;
	42 TCursor c;
	43
	44 + tmp = col;
	45 + if (!term.maxcol)
	46 + term.maxcol = term.col;
	47 + col = MAX(col, term.maxcol);
	48 + minrow = MIN(row, term.row);
	49 + mincol = MIN(col, term.maxcol);
	50 +
	51 if (col < 1 \|\| row < 1) {
	52 fprintf(stderr,
	53 "tresize: error resizing to %dx%d\n", col, row);
	54 @@ -2593,17 +2601,18 @@ tresize(int col, int row)
	55 term.line[i] = xmalloc(col * sizeof(Glyph));
	56 term.alt[i] = xmalloc(col * sizeof(Glyph));
	57 }
	58 - if (col > term.col) {
	59 - bp = term.tabs + term.col;
	60 + if (col > term.maxcol) {
	61 + bp = term.tabs + term.maxcol;
	62
	63 - memset(bp, 0, sizeof(term.tabs) (col - term.col));
	64 + memset(bp, 0, sizeof(term.tabs) (col - term.maxcol));
	65 while (--bp > term.tabs && !*bp)
	66 /* nothing */ ;
	67 for (bp += tabspaces; bp < term.tabs + col; bp += tabsp…
	68 *bp = 1;
	69 }
	70 /* update terminal size */
	71 - term.col = col;
	72 + term.col = tmp;
	73 + term.maxcol = col;
	74 term.row = row;
	75 /* reset scrolling region */
	76 tsetscroll(0, row-1);
	77 --
	78 2.46.2
	79