[patch] LyX scrolling issue

[Scott Kostyshak]

Some have reported problems with LyX scrolling on Windows and Mac.
Robert Schulze has git-bisected his way to the root cause of the
particular scrolling problem he is experiencing:
http://www.lyx.org/trac/ticket/8135
I am wondering if his problem is the same as others. The patch for
current branch is attached.
Can anyone who has the problem on current branch 2.0.x compile and test?

Is there a way to fix the scrolling issue without causing regressions
in the following?
http://www.lyx.org/trac/ticket/7503
http://www.lyx.org/trac/ticket/7173
http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg170468.html

For background on some scrolling problems that I think might be
related, there are a lot of details here:
http://www.mail-archive.com/lyx-users@lists.lyx.org/msg90568.html

and also reports from Olivier here
http://www.mail-archive.com/lyx-users@lists.lyx.org/msg90218.html
http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg172462.html

Thanks,

Scott

diff --git a/src/frontends/qt4/GuiWorkArea.cpp 
b/src/frontends/qt4/GuiWorkArea.cpp
index df9dfe8..297f531 100644
--- a/src/frontends/qt4/GuiWorkArea.cpp
+++ b/src/frontends/qt4/GuiWorkArea.cpp
@@ -1085,7 +1085,7 @@ void GuiWorkArea::resizeEvent(QResizeEvent * ev)
 
 void GuiWorkArea::update(int x, int y, int w, int h)
 {
-       viewport()->update(x, y, w, h);
+       viewport()->repaint(x, y, w, h);
 }