PaintTree MaximumBottom not remove BottomSpace

[chinawsb]

I use BottomSpace to manual draw footer, but in VirtualTrees.BaseTree.PaintTree:

MaximumBottom := Target.Y + (Window.Bottom - Window.Top);

I think this need remove BottomSpace like this:
MaximumBottom := Target.Y + (Window.Bottom - Window.Top-BottomSpace);

[chinawsb]

More fixup in VirtualTrees.BaseTree.TBaseVirtualTree.DoSetOffsetXY avoid mouse wheel flick
if (toShowBackground in FOptions.PaintOptions) and Assigned(FBackground.Graphic) then
->
if (BottomSpace>0) or ((toShowBackground in FOptions.PaintOptions) and Assigned(FBackground.Graphic)) then

[joachimmarder]

Please respect our guidelines on the project homepage for submitting bugs. Please include your version of Virtual TreeView and Delphi, and attach a sample compiling project as ZIP to your report that allows to replicate the problem. If only small changes are required, a description is sufficient how a demo projects needs to be changed in order to replicate the bug. If you already have a solution, please supply a patch file.

In my test the BottomSpace was respected correctly.

[chinawsb]

This bug in version 7.6,I not test it in 8.x.

If not add BottomSpace,vertscrollbar will be make last row override by owner draw footer.