From 25d1f3f5b6391af17a38dd4c86fd6b2769abe592 Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Tue, 27 Oct 2009 18:04:02 +0000
Subject: [PATCH] if the sub widget can't scroll at all, just ignore the mouse
 event

svn path=/trunk/KDE/kdelibs/; revision=1041272
---
 private/kineticscroll.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/private/kineticscroll.cpp b/private/kineticscroll.cpp
index 6b1a0a64b..c1e952303 100644
--- a/private/kineticscroll.cpp
+++ b/private/kineticscroll.cpp
@@ -151,6 +151,13 @@ void KineticScrolling::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {
     d->syncViewportRect();
     d->cposition = -d->parent->property("scrollPosition").value<QPointF>();
+
+    if (d->cposition == QPointF(0, 0) &&
+        d->viewportGeometry.width() + 2 >= d->contentsSize.width() &&
+        d->viewportGeometry.height() + 2 >= d->contentsSize.height()) {
+        event->ignore();
+    }
+
     doneOvershoot();
     Q_UNUSED(event);
     d->count();