Import from latest QtMobility.

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diff --git a/src/organizer/filters/qorganizeriteminvalidfilter.cpp b/src/organizer/filters/qorganizeriteminvalidfilter.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qorganizeriteminvalidfilter.h"
+#include "qorganizeritemfilter_p.h"
+
+/*!
+  \class QOrganizerItemInvalidFilter
+  \brief The QOrganizerItemInvalidFilter class matches no organizeritems.
+  \inmodule QtOrganizer
+  \ingroup organizer-filters
+  \since 1.1
+
+  This class provides a filter which will never match any organizeritems
+ */
+
+QTPIM_BEGIN_NAMESPACE
+
+class QOrganizerItemInvalidFilterPrivate : public QOrganizerItemFilterPrivate
+{
+public:
+    QOrganizerItemInvalidFilterPrivate()
+       : QOrganizerItemFilterPrivate()
+    {
+    }
+
+    bool compare(const QOrganizerItemFilterPrivate*) const
+    {
+        return true; // all invalid filters are alike
+    }
+
+    QDataStream& outputToStream(QDataStream& stream, quint8 formatVersion) const
+    {
+        Q_UNUSED(formatVersion)
+        return stream;
+    }
+
+    QDataStream& inputFromStream(QDataStream& stream, quint8 formatVersion)
+    {
+        Q_UNUSED(formatVersion)
+        return stream;
+    }
+
+#ifndef QT_NO_DEBUG_STREAM
+    QDebug& debugStreamOut(QDebug& dbg) const
+    {
+        dbg.nospace() << "QOrganizerItemInvalidFilter()";
+        return dbg.maybeSpace() ;
+    }
+#endif
+
+    /* There is no way this can be called - d is never detached */
+    QOrganizerItemFilterPrivate* clone() const
+    {
+        return new QOrganizerItemInvalidFilterPrivate();
+    }
+
+    QOrganizerItemFilter::FilterType type() const
+    {
+        return QOrganizerItemFilter::InvalidFilter;
+    }
+
+    QList<QOrganizerItemFilter> m_filters;
+};
+
+/*!
+ * Constructs a new invalid filter
+   \since 1.1
+ */
+QOrganizerItemInvalidFilter::QOrganizerItemInvalidFilter()
+    : QOrganizerItemFilter(new QOrganizerItemInvalidFilterPrivate)
+{
+}
+
+/*!
+ * Constructs a new invalid filter, ignoring the \a other filter
+   \since 1.1
+ */
+QOrganizerItemInvalidFilter::QOrganizerItemInvalidFilter(const QOrganizerItemFilter& other)
+    : QOrganizerItemFilter(new QOrganizerItemInvalidFilterPrivate)
+{
+    // Initializing a QCIF from anything is the same as just constructing a QCIF
+    Q_UNUSED(other);
+}
+
+QTPIM_END_NAMESPACE