From e1f617128ca65aa6cb7381ef29deba791417c91e Mon Sep 17 00:00:00 2001
From: Christoph Schleifenbaum <christoph.schleifenbaum@kdab.com>
Date: Thu, 23 Aug 2012 18:36:57 +0200
Subject: [PATCH] Drawing fix for overlay scrollbars on Mac.

A wrong check lead to a scrollbar with value 0 never been draw. This is
the fix for it. Instead is has to be checked for a length of 0.

Change-Id: I0c4e2f7e0014074e3c22554bcbea0ebfc3122952
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
---
 src/widgets/styles/qmacstyle_mac.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/widgets/styles/qmacstyle_mac.mm b/src/widgets/styles/qmacstyle_mac.mm
index d1e4231071..9ab1663385 100644
--- a/src/widgets/styles/qmacstyle_mac.mm
+++ b/src/widgets/styles/qmacstyle_mac.mm
@@ -5206,7 +5206,7 @@ void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex
                     [scroller setFrame:NSMakeRect(0, 0, slider->rect.width(), height)];
                     CGContextTranslateCTM(cg, 0, value * totalHeight);
                 }
-                if (value > 0.0) {
+                if (length > 0.0) {
                     [scroller layout];
                     [scroller displayRectIgnoringOpacity:[scroller bounds]
                                                inContext:[NSGraphicsContext currentContext]];