commit d66fb70959b13dd822664867c363591b2c401767
author Caolán McNamara <caolanm@redhat.com> Thu May 05 14:24:16 2022 +0100
committer Caolán McNamara <caolanm@redhat.com> Thu May 05 21:42:09 2022 +0200
tree 0a63b038af82e39abb0a1353c00b50afe7c89071
parent 869a5897cfe8de5f69b2a72f296a443467907c02

tdf#148771 in scrollable dropdowns show some lines before selected entry

and don't just position with the selected entry at the top so it's quick
to pick preceeding adjacent entries

Change-Id: I20103200c34037fb02b3c0dcc29d154c1197549d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133893
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

vcl/source/control/imp_listbox.cxx

diff --git a/vcl/source/control/imp_listbox.cxx b/vcl/source/control/imp_listbox.cxx
index 1391008..fa01c64 100644
--- a/vcl/source/control/imp_listbox.cxx
+++ b/vcl/source/control/imp_listbox.cxx
@@ -1876,6 +1876,11 @@ void ImplListBoxWindow::SetTopEntry( sal_Int32 nTop )

void ImplListBoxWindow::ShowProminentEntry( sal_Int32 nEntryPos )
{
    sal_Int32 nPos = nEntryPos;
    auto nWHeight = PixelToLogic( GetSizePixel() ).Height();
    while( nEntryPos > 0 && maEntryList.GetAddedHeight( nPos+1, nEntryPos ) < nWHeight/2 )
        nEntryPos--;

    SetTopEntry( nEntryPos );
}