[PATCH] follow-up of fdo#30788: fix showing of unnecessary empty horizontal scrollbar

[Ivan Timofeev]

Hi,

actually there was not a scrollbar appearing at the bottom, there was a 
border. :)

The root cause lives in sw/source/ui/uiview/viewport.cxx, 
SwView::CalcAndSetBorderPixel.
The code is:
     //#i32913# in browse mode the visibility of the horizontal scrollbar
     // depends on the content (fixed width tables may require a scrollbar)
     if ( 
pHScrollbar->IsVisible(pWrtShell->GetViewOptions()->getBrowseMode()) )
         rToFill.Bottom() = nTmp;

so in normal mode we use IsVisible(false), that checks for 
SwScrollbar::bVisible, regardless of the real visibility. The next line:
     SetBorderPixel( rToFill );
passes rToFill to SfxViewFrame::SetBorderPixelImpl, where it is used for 
some window size manipulations... Use of IsVisible(true), that checks 
for the real visibility, fixes the problem. The patch is attached. 
Please tell me what do you think about it. :)

Another question is why in the code above there is
     pVScrollbar->IsVisible(sal_False)
for the vertical scrollbar. I don't know. If this condition is true, 
then the right border should be set:
     rToFill.Right()  = nTmp;
But even if you move that line to the outside of the condition, there is 
no any visual effect, no any right border. What fun! :)

Best Regards,
Ivan