tdf#145604 indicate the row as the target when dropping in a visual tree

and indicate between rows when dropping in a visual list, which is what
we are doing for the gtk version.

a visual list case is tools, customize, menu and drag and drop the
assigned commands around.
a visual tree case is tools, macros, organize dialogs, use libraries
to create two libraries, and move to dialog and create a dialog in
one library, and drop it onto the other library to move it between
libraries.

Change-Id: Ia8dc944c1f411b1f072ad1c8dcc755a1e44e3b05
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/126291
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/vcl/source/treelist/treelistbox.cxx b/vcl/source/treelist/treelistbox.cxx
index 58a1a006d72e..f8cfaaf6a311 100644
--- a/vcl/source/treelist/treelistbox.cxx
+++ b/vcl/source/treelist/treelistbox.cxx
@@ -2741,7 +2741,18 @@ void SvTreeListBox::PaintEntry1(SvTreeListEntry& rEntry, tools::Long nLine, vcl:
         rRenderContext.Push();
         rRenderContext.SetLineColor(rSettings.GetDeactiveColor());
         rRenderContext.SetFillColor(rSettings.GetDeactiveColor());
-        rRenderContext.DrawRect(tools::Rectangle(Point(0, nLine), Size(nWidth, 2)));
+
+        const bool bAsTree = GetStyle() & (WB_HASLINES | WB_HASLINESATROOT);
+        if (bAsTree)
+        {
+            rRenderContext.DrawRect(tools::Rectangle(Point(0, nLine + nTempEntryHeight - 2), Size(nWidth, 2)));
+            rRenderContext.DrawRect(tools::Rectangle(Point(0, nLine), Size(nWidth, 2)));
+        }
+        else
+        {
+            rRenderContext.DrawRect(tools::Rectangle(Point(0, nLine), Size(nWidth, 2)));
+        }
+
         rRenderContext.Pop();
     }