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patch 9.0.1919: Wrong curswant when clicking on empty line or with vsplits

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Problem:  Wrong curswant when clicking on empty line or with vsplits.
Solution: Don't check for ScreenCols[] before the start of the window
          and handle empty line properly.

closes: #13132

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
This commit is contained in:
zeertzjq
2023-09-20 20:08:40 +02:00
committed by Christian Brabandt
parent 5790a54166
commit 03cd697d63
4 changed files with 52 additions and 14 deletions
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8
src/mouse.c
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@@ -2101,11 +2101,11 @@ retnomove:
if (col_from_screen == MAXCOL)
{
// When clicking after end of line, still need to set correct curswant
int off_l = LineOffset[prev_row];
int off_l = LineOffset[prev_row] + curwin->w_wincol;
if (ScreenCols[off_l] < MAXCOL)
{
// Binary search to find last char in line
int off_r = off_l + prev_col;
int off_r = LineOffset[prev_row] + prev_col;
int off_click = off_r;
while (off_l < off_r)
{
@@ -2118,8 +2118,8 @@ retnomove:
col = ScreenCols[off_r] + (off_click - off_r);
}
else
// Shouldn't normally happen
col = MAXCOL;
// Clicking on an empty line
col = prev_col - curwin->w_wincol;
}
else if (col_from_screen >= 0)
{