commit 6250b2bebfc8179e1c618dc79a9b74c8efe06629
author Caolán McNamara <caolanm@redhat.com> Tue Jun 09 12:25:26 2020 +0100
committer Caolán McNamara <caolanm@redhat.com> Tue Jun 09 21:16:46 2020 +0200
tree 54b47923147c8f184943777784173971658aaed1
parent 94dd6c84db201dd5fecdbdcad6c62f8337d0eaa9

tdf#129856 invalidate old internal border if we scroll

and will redraw a new one

Change-Id: I2438af94e54f31c617cc183c61fbaaef31b5601f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/95887
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

vcl/source/treelist/headbar.cxx

diff --git a/vcl/source/treelist/headbar.cxx b/vcl/source/treelist/headbar.cxx
index e87790e..7020c61 100644
--- a/vcl/source/treelist/headbar.cxx
+++ b/vcl/source/treelist/headbar.cxx
@@ -1110,8 +1110,15 @@ void HeaderBar::Clear()

void HeaderBar::SetOffset( long nNewOffset )
{
    // tdf#129856 (see also #i40393#) invalidate old left and right border area if WB_BORDER was set in ImplInit()
    if (mnBorderOff1 && mnBorderOff2)
    {
        Invalidate(tools::Rectangle(0, 0, 1, mnDY));
        Invalidate(tools::Rectangle(mnDX - 1, 0, mnDX, mnDY));
    }

    // move area
    tools::Rectangle aRect( 0, mnBorderOff1, mnDX-1, mnDY-mnBorderOff1-mnBorderOff2-1 );
    tools::Rectangle aRect( 0, mnBorderOff1, mnDX-1, mnDY-mnBorderOff1-mnBorderOff2 );
    long nDelta = mnOffset-nNewOffset;
    mnOffset = nNewOffset;
    Scroll( nDelta, 0, aRect );