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

diff --git a/src/drawscreen.c b/src/drawscreen.c
index 1802adeab91beb32895e64f64c118726353207ed..cf2e4c15ab72cbe37e6b0cb2ee1f28c486a22845 100644 (file)
--- 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 (file)
index 0000000..c634f1d
--- /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 (file)
index 0000000..691fe28
--- /dev/null
+++ b/src/testdir/dumps/Test_smooth_diff_change_line_2.dump
@@ -0,0 +1,20 @@
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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 (file)
index 0000000..c417840
--- /dev/null
+++ b/src/testdir/dumps/Test_smooth_diff_change_line_3.dump
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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 (file)
index 0000000..b789df3
--- /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 47a3cf818c7ff830bee5548386f5a810ee514e1e..9c4e29ed27348b4f6daf383096ed5a4e57492083 100644 (file)
--- 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 37435658fec0520751c3caecf2d0468252a351a3..f5d85cb674b89c4ad75e41f35fe4dd7b87269046 100644 (file)
--- 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,
 /**/