The latest fix still had the same problem when dragging went out of the viewport and entered again. Non droppable places (e.g. files) were still drawn with MouseOver

flag. This completely fixes the problem for all cases, the problem was the hovered cached index being updated at indexAt() method used for general purposes. Now it is 
updated on the MouseMove method, and this gives consistence.

CCMAIL: [email protected]

svn path=/trunk/KDE/kdebase/apps/; revision=748970

1 files changed, 15 insertions, 3 deletions

diff --git a/src/kcategorizedview.cpp b/src/kcategorizedview.cpp
index d612f4b1c..42ee7b1ad 100644
--- a/src/kcategorizedview.cpp
+++ b/src/kcategorizedview.cpp
@@ -662,8 +662,6 @@ QModelIndex KCategorizedView::indexAt(const QPoint &point) const
         index = item[0];
     }
 
-    d->hovered = index;
-
     return index;
 }
 
@@ -744,7 +742,10 @@ void KCategorizedView::paintEvent(QPaintEvent *event)
                 option.state |= QStyle::State_Editing;
         }
 
-        if ((index == d->hovered) && !d->mouseButtonPressed && (this->state() != QAbstractItemView::DraggingState))
+        // we are only interested to give the mouse over feedback when no
+        // dragging is happening (ereslibre)
+        if ((index == d->hovered) && !d->mouseButtonPressed &&
+            (this->state() == QAbstractItemView::NoState))
             option.state |= QStyle::State_MouseOver;
         else
             option.state &= ~QStyle::State_MouseOver;
@@ -986,6 +987,17 @@ void KCategorizedView::mouseMoveEvent(QMouseEvent *event)
         return;
     }
 
+    QModelIndexList item = d->intersectionSet(QRect(event->pos(), event->pos()));
+
+    if (item.count() == 1)
+    {
+        d->hovered = item[0];
+    }
+    else
+    {
+        d->hovered = QModelIndex();
+    }
+
     const QString previousHoveredCategory = d->hoveredCategory;
 
     d->mousePosition = event->pos();