From 66af7c390ccf015400f80ee0a1a5f14dc1bf18d9 Mon Sep 17 00:00:00 2001
From: Aurélien Gâteau <agateau@kde.org>
Date: Fri, 8 Feb 2013 15:44:37 +0100
Subject: Fix blinking when moving the mouse over an hidden item

The opacity of the unhovered pixmap must be gradually reduced while
animating otherwise the alpha channel saturates.

REVIEW: 108858
BUG: 299371
FIXED-IN: 4.10.1
---
 src/kitemviews/kstandarditemlistwidget.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/kitemviews/kstandarditemlistwidget.cpp b/src/kitemviews/kstandarditemlistwidget.cpp
index f3414e3f2..fcd052045 100644
--- a/src/kitemviews/kstandarditemlistwidget.cpp
+++ b/src/kitemviews/kstandarditemlistwidget.cpp
@@ -249,13 +249,14 @@ void KStandardItemListWidget::paint(QPainter* painter, const QStyleOptionGraphic
 
     const KItemListStyleOption& itemListStyleOption = styleOption();
     if (isHovered()) {
+        const qreal opacity = painter->opacity();
         // Blend the unhovered and hovered pixmap if the hovering
         // animation is ongoing
         if (hoverOpacity() < 1.0) {
+            painter->setOpacity((1.0 - hoverOpacity()) * opacity);
             drawPixmap(painter, m_pixmap);
         }
 
-        const qreal opacity = painter->opacity();
         painter->setOpacity(hoverOpacity() * opacity);
         drawPixmap(painter, m_hoverPixmap);
         painter->setOpacity(opacity);
-- 
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