[patch] patch for qtgui-4.8.5-r1

qtgui-4.8.5-qcleanlooksstyle-slidewidth.patch (text/plain), 1.39 KB, created by Alexandre Rostovtsev (RETIRED) on 2014-04-14 04:16:05 UTC

From e6ca346a80207f72c022ff59ec3c467454452041 Mon Sep 17 00:00:00 2001
From: Alexandre Rostovtsev <[e-mail]>
Date: Sun, 13 Apr 2014 23:39:04 -0400
Subject: [PATCH] QCleanlooksStyle::drawControl : fix floating point exception

If indeterminate == true, we can have rect.width() == 4, in which
case slideWidth ends up zero, and we take a mod by zero.

Instead, calculate slideWidth based on max(width, minWidth) where
minWidth was already set as 4, ensuring that slideWidth >= 2.

https://bugs.gentoo.org/show_bug.cgi?id=507124
---
 src/gui/styles/qcleanlooksstyle.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/styles/qcleanlooksstyle.cpp b/src/gui/styles/qcleanlooksstyle.cpp
index 0e0d050..d55d541 100644
--- a/src/gui/styles/qcleanlooksstyle.cpp
+++ b/src/gui/styles/qcleanlooksstyle.cpp
@@ -1773,7 +1773,7 @@ void QCleanlooksStyle::drawControl(ControlElement element, const QStyleOption *o
                 }
             } else {
                 Q_D(const QCleanlooksStyle);
-                int slideWidth = ((rect.width() - 4) * 2) / 3;
+                int slideWidth = (qMax(rect.width() - 4, minWidth) * 2) / 3;
                 int step = ((d->animateStep * slideWidth) / d->animationFps) % slideWidth;
                 if ((((d->animateStep * slideWidth) / d->animationFps) % (2 * slideWidth)) >= slideWidth)
                     step = slideWidth - step;
-- 
1.9.2