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authorBram Moolenaar <Bram@vim.org>2020-08-01 19:14:13 +0200
committerBram Moolenaar <Bram@vim.org>2020-08-01 19:14:13 +0200
commitf8992d47cd50494c64bb733329067c9de3c75200 (patch)
tree9bf5664c4b44b08508d54000ce9c8a63168e84bb
parent2c79e9d14dc0e61d8c357946d01107ec23ec0fe2 (diff)
patch 8.2.1345: Redraw error when using visual block and scrollv8.2.1345
Problem: Redraw error when using visual block and scroll. Solution: Add check for w_topline. ( closes #6597)
-rw-r--r--src/drawscreen.c9
-rw-r--r--src/testdir/dumps/Test_display_visual_block_scroll.dump7
-rw-r--r--src/testdir/test_display.vim23
-rw-r--r--src/version.c2
4 files changed, 38 insertions, 3 deletions
diff --git a/src/drawscreen.c b/src/drawscreen.c
index faecaa44bf..7afcf09754 100644
--- a/src/drawscreen.c
+++ b/src/drawscreen.c
@@ -1659,10 +1659,13 @@ win_update(win_T *wp)
#endif
)
{
- if (mod_top != 0 && wp->w_topline == mod_top)
+ if (mod_top != 0
+ && wp->w_topline == mod_top
+ && (!wp->w_lines[0].wl_valid
+ || wp->w_topline == wp->w_lines[0].wl_lnum))
{
- // w_topline is the first changed line, the scrolling will be done
- // further down.
+ // w_topline is the first changed line and window is not scrolled,
+ // the scrolling from changed lines will be done further down.
}
else if (wp->w_lines[0].wl_valid
&& (wp->w_topline < wp->w_lines[0].wl_lnum
diff --git a/src/testdir/dumps/Test_display_visual_block_scroll.dump b/src/testdir/dumps/Test_display_visual_block_scroll.dump
new file mode 100644
index 0000000000..afb52fbb94
--- /dev/null
+++ b/src/testdir/dumps/Test_display_visual_block_scroll.dump
@@ -0,0 +1,7 @@
+|{+0&#e0e0e08| | +0&#ffffff0@72
+|}+0&#e0e0e08| | +0&#ffffff0@72
+|{+0&#e0e0e08| | +0&#ffffff0@72
+|f+0&#e0e0e08| | +0&#ffffff0@72
+>g| +0&#e0e0e08| +0&#ffffff0@72
+|}| @73
+|-+2&&@1| |V|I|S|U|A|L| |L|I|N|E| |-@1| +0&&@29|7| @8|1@1|,|1| @9|B|o|t|
diff --git a/src/testdir/test_display.vim b/src/testdir/test_display.vim
index ed111a585e..1e2ed455f0 100644
--- a/src/testdir/test_display.vim
+++ b/src/testdir/test_display.vim
@@ -220,3 +220,26 @@ func Test_unprintable_fileformats()
call delete('Xmac.txt')
call delete(filename)
endfunc
+
+" Test for scrolling that modifies buffer during visual block
+func Test_visual_block_scroll()
+ CheckScreendump
+
+ let lines =<< trim END
+ source $VIMRUNTIME/plugin/matchparen.vim
+ set scrolloff=1
+ call setline(1, ['a', 'b', 'c', 'd', 'e', '', '{', '}', '{', 'f', 'g', '}'])
+ call cursor(5, 1)
+ END
+
+ let filename = 'Xvisualblockmodifiedscroll'
+ call writefile(lines, filename)
+
+ let buf = RunVimInTerminal('-S '.filename, #{rows: 7})
+ call term_sendkeys(buf, "V\<C-D>\<C-D>")
+
+ call VerifyScreenDump(buf, 'Test_display_visual_block_scroll', {})
+
+ call StopVimInTerminal(buf)
+ call delete(filename)
+endfunc
diff --git a/src/version.c b/src/version.c
index c6b6e8fd02..fb8a37ce5c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 1345,
+/**/
1344,
/**/
1343,