Commit: patch 9.1.0753: Wrong display when typing in diff mode with 'smoothscroll'

[Christian Brabandt]

patch 9.1.0753: Wrong display when typing in diff mode with 'smoothscroll'

Commit: https://github.com/vim/vim/commit/47f8584a80006cd25e7dc6fa7fb1bfe2e768403c
Author: zeertzjq <zeer...@outlook.com>
Date: Tue Oct 1 19:35:47 2024 +0200

patch 9.1.0753: Wrong display when typing in diff mode with 'smoothscroll'

Problem: Wrong display when typing in diff mode with 'smoothscroll'.
Solution: Use adjust_plines_for_skipcol() (zeertzjq).

closes: #15776

Signed-off-by: zeertzjq <zeer...@outlook.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/drawscreen.c b/src/drawscreen.c
index 1802adeab..cf2e4c15a 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -1906,9 +1906,13 @@ win_update(win_T *wp)
// Correct the first entry for filler lines at the top
// when it won't get updated below.
if (wp->w_p_diff && bot_start > 0)
- wp->w_lines[0].wl_size =
- plines_win_nofill(wp, wp->w_topline, TRUE)
- + wp->w_topfill;
+ {
+ int n = plines_win_nofill(wp, wp->w_topline, FALSE)
+ + wp->w_topfill - adjust_plines_for_skipcol(wp);
+ if (n > wp->w_height)
+ n = wp->w_height;
+ wp->w_lines[0].wl_size = n;
+ }
#endif
}
}
diff --git a/src/testdir/dumps/Test_smooth_diff_change_line_1.dump b/src/testdir/dumps/Test_smooth_diff_change_line_1.dump
new file mode 100644
index 000000000..c634f1dd3
--- /dev/null
+++ b/src/testdir/dumps/Test_smooth_diff_change_line_1.dump
@@ -0,0 +1,20 @@
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diff --git a/src/testdir/dumps/Test_smooth_diff_change_line_2.dump b/src/testdir/dumps/Test_smooth_diff_change_line_2.dump
new file mode 100644
index 000000000..691fe289f
--- /dev/null
+++ b/src/testdir/dumps/Test_smooth_diff_change_line_2.dump
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diff --git a/src/testdir/dumps/Test_smooth_diff_change_line_3.dump b/src/testdir/dumps/Test_smooth_diff_change_line_3.dump
new file mode 100644
index 000000000..c4178404d
--- /dev/null
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+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| @14||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| @14
+|~+0#4040ff13&| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|[+1#0000000&|N|o| |N|a|m|e|]| |[|+|]| @5|2|,|4| @11|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @5|2|,|6| @11|A|l@1
+| +0&&@74
diff --git a/src/testdir/dumps/Test_smooth_diff_change_line_4.dump b/src/testdir/dumps/Test_smooth_diff_change_line_4.dump
new file mode 100644
index 000000000..b789df3fb
--- /dev/null
+++ b/src/testdir/dumps/Test_smooth_diff_change_line_4.dump
@@ -0,0 +1,20 @@
+|<+0#4040ff13#ffffff0@2| +0#0000000&|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a||+1&&|<+0#4040ff13&@2| +0#0000000&|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a
+| +0#0000e05#a8a8a8255@1|b+0#0000000#ffffff0|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| ||+1&&| +0#0000e05#a8a8a8255@1|b+0#0000000#ffffff0|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c|
+| +0#0000e05#a8a8a8255@1|a+0#0000000#ffffff0|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c||+1&&| +0#0000e05#a8a8a8255@1|a+0#0000000#ffffff0|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| @14||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| @14
+| +0#0000e05#a8a8a8255@1|f+2#0000000#ff404010|o@1| +0&#ffd7ff255@31||+1&#ffffff0| +0#0000e05#a8a8a8255@1|b+2#0000000#ff404010|a|r|b|a|r| +0&#ffd7ff255@28
+| +0#0000e05#a8a8a8255@1|b+0#0000000#ffd7ff255|a|r| @31||+1&#ffffff0| +0#0000e05#a8a8a8255@1>b+0#0000000#ffd7ff255|a|r|b+2&#ff404010|a|r| +0&#ffd7ff255@28
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b
+| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a
+| +0#0000e05#a8a8a8255@1|b+0#0000000#ffffff0|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| ||+1&&| +0#0000e05#a8a8a8255@1|b+0#0000000#ffffff0|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c|
+| +0#0000e05#a8a8a8255@1|a+0#0000000#ffffff0|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c||+1&&| +0#0000e05#a8a8a8255@1|a+0#0000000#ffffff0|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b
+| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a||+1&&| +0#0000e05#a8a8a8255@1|c+0#0000000#ffffff0| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a
+| +0#0000e05#a8a8a8255@1|b+0#0000000#ffffff0|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| ||+1&&| +0#0000e05#a8a8a8255@1|b+0#0000000#ffffff0|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c|
+| +0#0000e05#a8a8a8255@1|a+0#0000000#ffffff0|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c||+1&&| +0#0000e05#a8a8a8255@1|a+0#0000000#ffffff0|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c
+| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| @14||+1&&| +0#0000e05#a8a8a8255@1| +0#0000000#ffffff0|a|b|c| |a|b|c| |a|b|c| |a|b|c| |a|b|c| @14
+|~+0#4040ff13&| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|~| @35||+1#0000000&|~+0#4040ff13&| @35
+|[+1#0000000&|N|o| |N|a|m|e|]| |[|+|]| @5|3|,|1| @11|A|l@1| |[+3&&|N|o| |N|a|m|e|]| |[|+|]| @5|3|,|1| @11|A|l@1
+| +0&&@74
diff --git a/src/testdir/test_scroll_opt.vim b/src/testdir/test_scroll_opt.vim
index 47a3cf818..9c4e29ed2 100644
--- a/src/testdir/test_scroll_opt.vim
+++ b/src/testdir/test_scroll_opt.vim
@@ -302,6 +302,36 @@ func Test_smoothscroll_diff_mode()
call StopVimInTerminal(buf)
endfunc

+func Test_smoothscroll_diff_change_line()
+ CheckScreendump
+
+ let lines =<< trim END
+ set diffopt+=followwrap smoothscroll
+ call setline(1, repeat(' abc', &columns))
+ call setline(2, 'bar')
+ call setline(3, repeat(' abc', &columns))
+ vnew
+ call setline(1, repeat(' abc', &columns))
+ call setline(2, 'foo')
+ call setline(3, 'bar')
+ call setline(4, repeat(' abc', &columns))
+ windo exe "normal! 2gg5\<C-E>"
+ windo diffthis
+ END
+ call writefile(lines, 'XSmoothDiffChangeLine', 'D')
+ let buf = RunVimInTerminal('-S XSmoothDiffChangeLine', #{rows: 20, columns: 55})
+
+ call VerifyScreenDump(buf, 'Test_smooth_diff_change_line_1', {})
+ call term_sendkeys(buf, "Abar")
+ call VerifyScreenDump(buf, 'Test_smooth_diff_change_line_2', {})
+ call term_sendkeys(buf, "\<Esc>")
+ call VerifyScreenDump(buf, 'Test_smooth_diff_change_line_3', {})
+ call term_sendkeys(buf, "yyp")
+ call VerifyScreenDump(buf, 'Test_smooth_diff_change_line_4', {})
+
+ call StopVimInTerminal(buf)
+endfunc
+
func Test_smoothscroll_wrap_scrolloff_zero()
CheckScreendump

diff --git a/src/version.c b/src/version.c
index 37435658f..f5d85cb67 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 753,
/**/
752,
/**/