Merge branch 'master' of git://scm.dev.nokia.troll.no/qt/qt-water-team

* 'master' of git://scm.dev.nokia.troll.no/qt/qt-water-team:
  Fixed a crash on Windows XP with mingw in threaded-code
  Totally kill MR 916
  Fix licence headers again for MR 900
  Reverting merge request 916
  Reverting merge request 916
  Build fix on QMenuBar
  Fix licence headers again for MR 900
  Fix copyright and a few codestyle mistakes
  Renamed QAbstractMenuBarImpl to QAbstractMenuBarInterface
  Make ctor and dtor of QAbstractMenuBarImpl inline
  QAbstractMenuBarImpl::allowSetVisible => setVisible
  Introduce menubar plugin system
  Introduce QAbstractMenuBarImpl
  Hide Q<Platform>MenuAction
  Fix warning about initialization order
  Add the QIdentityProxyModel.
  Fix incorrect rendering of checked menu items on Windows Classic

14 files changed, 1135 insertions, 12 deletions

diff --git a/doc/src/frameworks-technologies/model-view-programming.qdoc b/doc/src/frameworks-technologies/model-view-programming.qdoc
index 92067b9..42404b0 100644
--- a/doc/src/frameworks-technologies/model-view-programming.qdoc
+++ b/doc/src/frameworks-technologies/model-view-programming.qdoc
@@ -1934,6 +1934,13 @@
     \l{QSortFilterProxyModel::lessThan()}{lessThan()} function to perform custom
     comparisons.
 
+    \section3 Custom data models
+
+    QIdentityProxyModel instances do not sort or filter the structure of the source model,
+    but provide a base class for creating a data proxy. This could be useful on top of a
+    QFileSystemModel for example to provide different colours for the BackgroundRole for
+    different types of files.
+
     \section1 Model subclassing reference
 
     Model subclasses need to provide implementations of many of the virtual functions
diff --git a/doc/src/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp b/doc/src/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
new file mode 100644
index 0000000..6bf6c89
--- /dev/null
+++ b/doc/src/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+class DateFormatProxyModel : public QIdentityProxyModel
+{
+  // ...
+
+  void setDateFormatString(const QString &formatString)
+  {
+    m_formatString = formatString;
+  }
+
+  QVariant data(const QModelIndex &index, int role)
+  {
+    if (role != Qt::DisplayRole)
+      return QIdentityProxyModel::data(index, role);
+
+    const QDateTime dateTime = sourceModel()->data(SourceClass::DateRole).toDateTime();
+
+    return dateTime.toString(m_formatString);
+  }
+
+private:
+  QString m_formatString;
+};
+//! [0]
diff --git a/src/corelib/kernel/qabstractitemmodel.h b/src/corelib/kernel/qabstractitemmodel.h
index 6de3bf5..7bed3a2 100644
--- a/src/corelib/kernel/qabstractitemmodel.h
+++ b/src/corelib/kernel/qabstractitemmodel.h
@@ -162,6 +162,7 @@ class Q_CORE_EXPORT QAbstractItemModel : public QObject
 
     friend class QPersistentModelIndexData;
     friend class QAbstractItemViewPrivate;
+    friend class QIdentityProxyModel;
 public:
 
     explicit QAbstractItemModel(QObject *parent = 0);
diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp
index 6b7932b..44e8958 100644
--- a/src/corelib/thread/qthread_win.cpp
+++ b/src/corelib/thread/qthread_win.cpp
@@ -288,7 +288,7 @@ void QThreadPrivate::createEventDispatcher(QThreadData *data)
 
 #ifndef QT_NO_THREAD
 
-unsigned int __stdcall QThreadPrivate::start(void *arg)
+unsigned int __stdcall QT_ENSURE_STACK_ALIGNED_FOR_SSE QThreadPrivate::start(void *arg)
 {
     QThread *thr = reinterpret_cast<QThread *>(arg);
     QThreadData *data = QThreadData::get2(thr);
diff --git a/src/gui/itemviews/itemviews.pri b/src/gui/itemviews/itemviews.pri
index bbc1e98..149bfd6 100644
--- a/src/gui/itemviews/itemviews.pri
+++ b/src/gui/itemviews/itemviews.pri
@@ -4,6 +4,7 @@ HEADERS += \
 	itemviews/qabstractitemview.h \
     itemviews/qabstractitemview_p.h \
 	itemviews/qheaderview.h \
+	itemviews/qidentityproxymodel.h \
 	itemviews/qlistview.h \
 	itemviews/qlistview_p.h \
 	itemviews/qbsptree_p.h \
@@ -44,6 +45,7 @@ HEADERS += \
 SOURCES += \
 	itemviews/qabstractitemview.cpp \
 	itemviews/qheaderview.cpp \
+	itemviews/qidentityproxymodel.cpp \
 	itemviews/qlistview.cpp \
 	itemviews/qbsptree.cpp \
 	itemviews/qtableview.cpp \
diff --git a/src/gui/itemviews/qidentityproxymodel.cpp b/src/gui/itemviews/qidentityproxymodel.cpp
new file mode 100644
index 0000000..60f7d98
--- /dev/null
+++ b/src/gui/itemviews/qidentityproxymodel.cpp
@@ -0,0 +1,587 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qidentityproxymodel.h"
+
+#ifndef QT_NO_IDENTITYPROXYMODEL
+
+#include "qitemselectionmodel.h"
+#include <private/qabstractproxymodel_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QIdentityProxyModelPrivate : public QAbstractProxyModelPrivate
+{
+  QIdentityProxyModelPrivate()
+    : ignoreNextLayoutAboutToBeChanged(false),
+      ignoreNextLayoutChanged(false)
+  {
+
+  }
+
+  Q_DECLARE_PUBLIC(QIdentityProxyModel)
+
+  bool ignoreNextLayoutAboutToBeChanged;
+  bool ignoreNextLayoutChanged;
+  QList<QPersistentModelIndex> layoutChangePersistentIndexes;
+  QModelIndexList proxyIndexes;
+
+  void _q_sourceRowsAboutToBeInserted(const QModelIndex &parent, int start, int end);
+  void _q_sourceRowsInserted(const QModelIndex &parent, int start, int end);
+  void _q_sourceRowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
+  void _q_sourceRowsRemoved(const QModelIndex &parent, int start, int end);
+  void _q_sourceRowsAboutToBeMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest);
+  void _q_sourceRowsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest);
+
+  void _q_sourceColumnsAboutToBeInserted(const QModelIndex &parent, int start, int end);
+  void _q_sourceColumnsInserted(const QModelIndex &parent, int start, int end);
+  void _q_sourceColumnsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
+  void _q_sourceColumnsRemoved(const QModelIndex &parent, int start, int end);
+  void _q_sourceColumnsAboutToBeMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest);
+  void _q_sourceColumnsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest);
+
+  void _q_sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight);
+  void _q_sourceHeaderDataChanged(Qt::Orientation orientation, int first, int last);
+
+  void _q_sourceLayoutAboutToBeChanged();
+  void _q_sourceLayoutChanged();
+  void _q_sourceModelAboutToBeReset();
+  void _q_sourceModelReset();
+
+};
+
+/*!
+    \since 4.8
+    \class QIdentityProxyModel
+    \brief The QIdentityProxyModel class proxies its source model unmodified
+
+    \ingroup model-view
+
+    QIdentityProxyModel can be used to forward the structure of a source model exactly, with no sorting, filtering or other transformation.
+    This is similar in concept to an identity matrix where A.I = A.
+
+    Because it does no sorting or filtering, this class is most suitable to proxy models which transform the data() of the source model.
+    For example, a proxy model could be created to define the font used, or the background colour, or the tooltip etc. This removes the
+    need to implement all data handling in the same class that creates the structure of the model, and can also be used to create
+    re-usable components.
+
+    This also provides a way to change the data in the case where a source model is supplied by a third party which can not be modified.
+
+    \snippet doc/src/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp 0
+
+    \sa QAbstractProxyModel, {Model/View Programming}, QAbstractItemModel
+
+*/
+
+/*!
+    Constructs an identity model with the given \a parent.
+*/
+QIdentityProxyModel::QIdentityProxyModel(QObject* parent)
+  : QAbstractProxyModel(*new QIdentityProxyModelPrivate, parent)
+{
+
+}
+
+/*! \internal
+ */
+QIdentityProxyModel::QIdentityProxyModel(QIdentityProxyModelPrivate &dd, QObject* parent)
+  : QAbstractProxyModel(dd, parent)
+{
+
+}
+
+/*!
+    Destroys this identity model.
+*/
+QIdentityProxyModel::~QIdentityProxyModel()
+{
+}
+
+/*!
+    \reimp
+ */
+int QIdentityProxyModel::columnCount(const QModelIndex& parent) const
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(const QIdentityProxyModel);
+    return d->model->columnCount(mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+bool QIdentityProxyModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(QIdentityProxyModel);
+    return d->model->dropMimeData(data, action, row, column, mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+QModelIndex QIdentityProxyModel::index(int row, int column, const QModelIndex& parent) const
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(const QIdentityProxyModel);
+    if (!hasIndex(row, column, parent))
+        return QModelIndex();
+    const QModelIndex sourceParent = mapToSource(parent);
+    const QModelIndex sourceIndex = d->model->index(row, column, sourceParent);
+    Q_ASSERT(sourceIndex.isValid());
+    return mapFromSource(sourceIndex);
+}
+
+/*!
+    \reimp
+ */
+bool QIdentityProxyModel::insertColumns(int column, int count, const QModelIndex& parent)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(QIdentityProxyModel);
+    return d->model->insertColumns(column, count, mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+bool QIdentityProxyModel::insertRows(int row, int count, const QModelIndex& parent)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(QIdentityProxyModel);
+    return d->model->insertRows(row, count, mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+QModelIndex QIdentityProxyModel::mapFromSource(const QModelIndex& sourceIndex) const
+{
+    Q_D(const QIdentityProxyModel);
+    if (!d->model || !sourceIndex.isValid())
+        return QModelIndex();
+
+    Q_ASSERT(sourceIndex.model() == d->model);
+    return createIndex(sourceIndex.row(), sourceIndex.column(), sourceIndex.internalPointer());
+}
+
+/*!
+    \reimp
+ */
+QItemSelection QIdentityProxyModel::mapSelectionFromSource(const QItemSelection& selection) const
+{
+    Q_D(const QIdentityProxyModel);
+    QItemSelection proxySelection;
+
+    if (!d->model)
+        return proxySelection;
+
+    QItemSelection::const_iterator it = selection.constBegin();
+    const QItemSelection::const_iterator end = selection.constEnd();
+    for ( ; it != end; ++it) {
+        Q_ASSERT(it->model() == d->model);
+        const QItemSelectionRange range(mapFromSource(it->topLeft()), mapFromSource(it->bottomRight()));
+        proxySelection.append(range);
+    }
+
+    return proxySelection;
+}
+
+/*!
+    \reimp
+ */
+QItemSelection QIdentityProxyModel::mapSelectionToSource(const QItemSelection& selection) const
+{
+    Q_D(const QIdentityProxyModel);
+    QItemSelection sourceSelection;
+
+    if (!d->model)
+        return sourceSelection;
+
+    QItemSelection::const_iterator it = selection.constBegin();
+    const QItemSelection::const_iterator end = selection.constEnd();
+    for ( ; it != end; ++it) {
+        Q_ASSERT(it->model() == this);
+        const QItemSelectionRange range(mapToSource(it->topLeft()), mapToSource(it->bottomRight()));
+        sourceSelection.append(range);
+    }
+
+    return sourceSelection;
+}
+
+/*!
+    \reimp
+ */
+QModelIndex QIdentityProxyModel::mapToSource(const QModelIndex& proxyIndex) const
+{
+    Q_D(const QIdentityProxyModel);
+    if (!d->model || !proxyIndex.isValid())
+        return QModelIndex();
+    Q_ASSERT(proxyIndex.model() == this);
+    return d->model->createIndex(proxyIndex.row(), proxyIndex.column(), proxyIndex.internalPointer());
+}
+
+/*!
+    \reimp
+ */
+QModelIndexList QIdentityProxyModel::match(const QModelIndex& start, int role, const QVariant& value, int hits, Qt::MatchFlags flags) const
+{
+    Q_D(const QIdentityProxyModel);
+    Q_ASSERT(start.isValid() ? start.model() == this : true);
+    if (!d->model)
+        return QModelIndexList();
+
+    const QModelIndexList sourceList = d->model->match(mapToSource(start), role, value, hits, flags);
+    QModelIndexList::const_iterator it = sourceList.constBegin();
+    const QModelIndexList::const_iterator end = sourceList.constEnd();
+    QModelIndexList proxyList;
+    for ( ; it != end; ++it)
+        proxyList.append(mapFromSource(*it));
+    return proxyList;
+}
+
+/*!
+    \reimp
+ */
+QModelIndex QIdentityProxyModel::parent(const QModelIndex& child) const
+{
+    Q_ASSERT(child.isValid() ? child.model() == this : true);
+    const QModelIndex sourceIndex = mapToSource(child);
+    const QModelIndex sourceParent = sourceIndex.parent();
+    return mapFromSource(sourceParent);
+}
+
+/*!
+    \reimp
+ */
+bool QIdentityProxyModel::removeColumns(int column, int count, const QModelIndex& parent)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(QIdentityProxyModel);
+    return d->model->removeColumns(column, count, mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+bool QIdentityProxyModel::removeRows(int row, int count, const QModelIndex& parent)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(QIdentityProxyModel);
+    return d->model->removeRows(row, count, mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+int QIdentityProxyModel::rowCount(const QModelIndex& parent) const
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == this : true);
+    Q_D(const QIdentityProxyModel);
+    return d->model->rowCount(mapToSource(parent));
+}
+
+/*!
+    \reimp
+ */
+void QIdentityProxyModel::setSourceModel(QAbstractItemModel* sourceModel)
+{
+    beginResetModel();
+
+    if (sourceModel) {
+        disconnect(sourceModel, SIGNAL(rowsAboutToBeInserted(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceRowsAboutToBeInserted(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceRowsInserted(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceRowsAboutToBeRemoved(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(rowsRemoved(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceRowsRemoved(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(rowsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                   this, SLOT(_q_sourceRowsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        disconnect(sourceModel, SIGNAL(rowsMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                   this, SLOT(_q_sourceRowsMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        disconnect(sourceModel, SIGNAL(columnsAboutToBeInserted(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceColumnsAboutToBeInserted(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(columnsInserted(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceColumnsInserted(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(columnsAboutToBeRemoved(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceColumnsAboutToBeRemoved(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(columnsRemoved(const QModelIndex &, int, int)),
+                   this, SLOT(_q_sourceColumnsRemoved(const QModelIndex &, int, int)));
+        disconnect(sourceModel, SIGNAL(columnsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                   this, SLOT(_q_sourceColumnsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        disconnect(sourceModel, SIGNAL(columnsMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                   this, SLOT(_q_sourceColumnsMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        disconnect(sourceModel, SIGNAL(modelAboutToBeReset()),
+                   this, SLOT(_q_sourceModelAboutToBeReset()));
+        disconnect(sourceModel, SIGNAL(modelReset()),
+                   this, SLOT(_q_sourceModelReset()));
+        disconnect(sourceModel, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),
+                   this, SLOT(_q_sourceDataChanged(const QModelIndex &, const QModelIndex &)));
+        disconnect(sourceModel, SIGNAL(headerDataChanged(Qt::Orientation,int,int)),
+                   this, SLOT(_q_sourceHeaderDataChanged(Qt::Orientation,int,int)));
+        disconnect(sourceModel, SIGNAL(layoutAboutToBeChanged()),
+                   this, SLOT(_q_sourceLayoutAboutToBeChanged()));
+        disconnect(sourceModel, SIGNAL(layoutChanged()),
+                   this, SLOT(_q_sourceLayoutChanged()));
+    }
+
+    QAbstractProxyModel::setSourceModel(sourceModel);
+
+    if (sourceModel) {
+        connect(sourceModel, SIGNAL(rowsAboutToBeInserted(const QModelIndex &, int, int)),
+                SLOT(_q_sourceRowsAboutToBeInserted(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(rowsInserted(const QModelIndex &, int, int)),
+                SLOT(_q_sourceRowsInserted(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(rowsAboutToBeRemoved(const QModelIndex &, int, int)),
+                SLOT(_q_sourceRowsAboutToBeRemoved(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(rowsRemoved(const QModelIndex &, int, int)),
+                SLOT(_q_sourceRowsRemoved(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(rowsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                SLOT(_q_sourceRowsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        connect(sourceModel, SIGNAL(rowsMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                SLOT(_q_sourceRowsMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        connect(sourceModel, SIGNAL(columnsAboutToBeInserted(const QModelIndex &, int, int)),
+                SLOT(_q_sourceColumnsAboutToBeInserted(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(columnsInserted(const QModelIndex &, int, int)),
+                SLOT(_q_sourceColumnsInserted(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(columnsAboutToBeRemoved(const QModelIndex &, int, int)),
+                SLOT(_q_sourceColumnsAboutToBeRemoved(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(columnsRemoved(const QModelIndex &, int, int)),
+                SLOT(_q_sourceColumnsRemoved(const QModelIndex &, int, int)));
+        connect(sourceModel, SIGNAL(columnsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                SLOT(_q_sourceColumnsAboutToBeMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        connect(sourceModel, SIGNAL(columnsMoved(const QModelIndex &, int, int, const QModelIndex &, int)),
+                SLOT(_q_sourceColumnsMoved(const QModelIndex &, int, int, const QModelIndex &, int)));
+        connect(sourceModel, SIGNAL(modelAboutToBeReset()),
+                SLOT(_q_sourceModelAboutToBeReset()));
+        connect(sourceModel, SIGNAL(modelReset()),
+                SLOT(_q_sourceModelReset()));
+        connect(sourceModel, SIGNAL(dataChanged(const QModelIndex &, const QModelIndex &)),
+                SLOT(_q_sourceDataChanged(const QModelIndex &, const QModelIndex &)));
+        connect(sourceModel, SIGNAL(headerDataChanged(Qt::Orientation,int,int)),
+                SLOT(_q_sourceHeaderDataChanged(Qt::Orientation,int,int)));
+        connect(sourceModel, SIGNAL(layoutAboutToBeChanged()),
+                SLOT(_q_sourceLayoutAboutToBeChanged()));
+        connect(sourceModel, SIGNAL(layoutChanged()),
+                SLOT(_q_sourceLayoutChanged()));
+    }
+
+    endResetModel();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceColumnsAboutToBeInserted(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->beginInsertColumns(q->mapFromSource(parent), start, end);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceColumnsAboutToBeMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest)
+{
+    Q_ASSERT(sourceParent.isValid() ? sourceParent.model() == model : true);
+    Q_ASSERT(destParent.isValid() ? destParent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->beginMoveColumns(q->mapFromSource(sourceParent), sourceStart, sourceEnd, q->mapFromSource(destParent), dest);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceColumnsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->beginRemoveColumns(q->mapFromSource(parent), start, end);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceColumnsInserted(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    Q_UNUSED(parent)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+    q->endInsertColumns();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceColumnsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest)
+{
+    Q_ASSERT(sourceParent.isValid() ? sourceParent.model() == model : true);
+    Q_ASSERT(destParent.isValid() ? destParent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    Q_UNUSED(sourceParent)
+    Q_UNUSED(sourceStart)
+    Q_UNUSED(sourceEnd)
+    Q_UNUSED(destParent)
+    Q_UNUSED(dest)
+    q->endMoveColumns();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceColumnsRemoved(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    Q_UNUSED(parent)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+    q->endRemoveColumns();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
+{
+    Q_ASSERT(topLeft.isValid() ? topLeft.model() == model : true);
+    Q_ASSERT(bottomRight.isValid() ? bottomRight.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->dataChanged(q->mapFromSource(topLeft), q->mapFromSource(bottomRight));
+}
+
+void QIdentityProxyModelPrivate::_q_sourceHeaderDataChanged(Qt::Orientation orientation, int first, int last)
+{
+    Q_Q(QIdentityProxyModel);
+    q->headerDataChanged(orientation, first, last);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceLayoutAboutToBeChanged()
+{
+    if (ignoreNextLayoutAboutToBeChanged)
+        return;
+
+    Q_Q(QIdentityProxyModel);
+
+    foreach(const QPersistentModelIndex &proxyPersistentIndex, q->persistentIndexList()) {
+        proxyIndexes << proxyPersistentIndex;
+        Q_ASSERT(proxyPersistentIndex.isValid());
+        const QPersistentModelIndex srcPersistentIndex = q->mapToSource(proxyPersistentIndex);
+        Q_ASSERT(srcPersistentIndex.isValid());
+        layoutChangePersistentIndexes << srcPersistentIndex;
+    }
+
+    q->layoutAboutToBeChanged();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceLayoutChanged()
+{
+    if (ignoreNextLayoutChanged)
+        return;
+
+    Q_Q(QIdentityProxyModel);
+
+    for (int i = 0; i < proxyIndexes.size(); ++i) {
+        q->changePersistentIndex(proxyIndexes.at(i), q->mapFromSource(layoutChangePersistentIndexes.at(i)));
+    }
+
+    layoutChangePersistentIndexes.clear();
+    proxyIndexes.clear();
+
+    q->layoutChanged();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceModelAboutToBeReset()
+{
+    Q_Q(QIdentityProxyModel);
+    q->beginResetModel();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceModelReset()
+{
+    Q_Q(QIdentityProxyModel);
+    q->endResetModel();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceRowsAboutToBeInserted(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->beginInsertRows(q->mapFromSource(parent), start, end);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceRowsAboutToBeMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest)
+{
+    Q_ASSERT(sourceParent.isValid() ? sourceParent.model() == model : true);
+    Q_ASSERT(destParent.isValid() ? destParent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->beginMoveRows(q->mapFromSource(sourceParent), sourceStart, sourceEnd, q->mapFromSource(destParent), dest);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceRowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    q->beginRemoveRows(q->mapFromSource(parent), start, end);
+}
+
+void QIdentityProxyModelPrivate::_q_sourceRowsInserted(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    Q_UNUSED(parent)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+    q->endInsertRows();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceRowsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destParent, int dest)
+{
+    Q_ASSERT(sourceParent.isValid() ? sourceParent.model() == model : true);
+    Q_ASSERT(destParent.isValid() ? destParent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    Q_UNUSED(sourceParent)
+    Q_UNUSED(sourceStart)
+    Q_UNUSED(sourceEnd)
+    Q_UNUSED(destParent)
+    Q_UNUSED(dest)
+    q->endMoveRows();
+}
+
+void QIdentityProxyModelPrivate::_q_sourceRowsRemoved(const QModelIndex &parent, int start, int end)
+{
+    Q_ASSERT(parent.isValid() ? parent.model() == model : true);
+    Q_Q(QIdentityProxyModel);
+    Q_UNUSED(parent)
+    Q_UNUSED(start)
+    Q_UNUSED(end)
+    q->endRemoveRows();
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qidentityproxymodel.cpp"
+
+#endif // QT_NO_IDENTITYPROXYMODEL
diff --git a/src/gui/itemviews/qidentityproxymodel.h b/src/gui/itemviews/qidentityproxymodel.h
new file mode 100644
index 0000000..4b3176a
--- /dev/null
+++ b/src/gui/itemviews/qidentityproxymodel.h
@@ -0,0 +1,120 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#ifndef QIDENTITYPROXYMODEL_H
+#define QIDENTITYPROXYMODEL_H
+
+#include <QtGui/qabstractproxymodel.h>
+
+#ifndef QT_NO_IDENTITYPROXYMODEL
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QIdentityProxyModelPrivate;
+
+class Q_GUI_EXPORT QIdentityProxyModel : public QAbstractProxyModel
+{
+    Q_OBJECT
+public:
+    explicit QIdentityProxyModel(QObject* parent = 0);
+    ~QIdentityProxyModel();
+
+    int columnCount(const QModelIndex& parent = QModelIndex()) const;
+    QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const;
+    QModelIndex mapFromSource(const QModelIndex& sourceIndex) const;
+    QModelIndex mapToSource(const QModelIndex& proxyIndex) const;
+    QModelIndex parent(const QModelIndex& child) const;
+    int rowCount(const QModelIndex& parent = QModelIndex()) const;
+    bool dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent);
+
+    QItemSelection mapSelectionFromSource(const QItemSelection& selection) const;
+    QItemSelection mapSelectionToSource(const QItemSelection& selection) const;
+    QModelIndexList match(const QModelIndex& start, int role, const QVariant& value, int hits = 1, Qt::MatchFlags flags = Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const;
+    void setSourceModel(QAbstractItemModel* sourceModel);
+
+    bool insertColumns(int column, int count, const QModelIndex& parent = QModelIndex());
+    bool insertRows(int row, int count, const QModelIndex& parent = QModelIndex());
+    bool removeColumns(int column, int count, const QModelIndex& parent = QModelIndex());
+    bool removeRows(int row, int count, const QModelIndex& parent = QModelIndex());
+
+protected:
+    QIdentityProxyModel(QIdentityProxyModelPrivate &dd, QObject* parent);
+
+private:
+    Q_DECLARE_PRIVATE(QIdentityProxyModel)
+    Q_DISABLE_COPY(QIdentityProxyModel)
+
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeInserted(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsInserted(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeRemoved(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsRemoved(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceRowsMoved(QModelIndex,int,int,QModelIndex,int))
+
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeInserted(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsInserted(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeRemoved(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsRemoved(QModelIndex,int,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceColumnsMoved(QModelIndex,int,int,QModelIndex,int))
+
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceDataChanged(QModelIndex,QModelIndex))
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceHeaderDataChanged(Qt::Orientation orientation, int first, int last))
+
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceLayoutAboutToBeChanged())
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceLayoutChanged())
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceModelAboutToBeReset())
+    Q_PRIVATE_SLOT(d_func(), void _q_sourceModelReset())
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QT_NO_IDENTITYPROXYMODEL
+
+#endif // QIDENTITYPROXYMODEL_H
+
diff --git a/src/gui/itemviews/qsortfilterproxymodel.cpp b/src/gui/itemviews/qsortfilterproxymodel.cpp
index eb56f56..f73607b 100644
--- a/src/gui/itemviews/qsortfilterproxymodel.cpp
+++ b/src/gui/itemviews/qsortfilterproxymodel.cpp
@@ -1502,7 +1502,7 @@ void QSortFilterProxyModelPrivate::_q_sourceColumnsRemoved(
     \l{Model Subclassing Reference}.
 
     \sa QAbstractProxyModel, QAbstractItemModel, {Model/View Programming},
-    {Basic Sort/Filter Model Example}, {Custom Sort/Filter Model Example}
+    {Basic Sort/Filter Model Example}, {Custom Sort/Filter Model Example}, QIdentityProxyModel
 */
 
 /*!
diff --git a/src/gui/styles/qcommonstyle.cpp b/src/gui/styles/qcommonstyle.cpp
index 8f99d6a..3d04c9a 100644
--- a/src/gui/styles/qcommonstyle.cpp
+++ b/src/gui/styles/qcommonstyle.cpp
@@ -223,16 +223,13 @@ void QCommonStyle::drawPrimitive(PrimitiveElement pe, const QStyleOption *opt, Q
             --yy;
         }
         if (!(opt->state & State_Enabled) && !(opt->state & State_On)) {
-            int pnt;
-            p->setPen(opt->palette.highlightedText().color());
-            QPoint offset(1, 1);
-            for (pnt = 0; pnt < a.size(); ++pnt)
-                a[pnt].translate(offset.x(), offset.y());
+            p->save();
+            p->translate(1, 1);
+            p->setPen(opt->palette.light().color());
             p->drawLines(a);
-            for (pnt = 0; pnt < a.size(); ++pnt)
-                a[pnt].translate(offset.x(), offset.y());
+            p->restore();
         }
-        p->setPen(opt->palette.text().color());
+        p->setPen((opt->state & State_On) ? opt->palette.highlightedText().color() : opt->palette.text().color());
         p->drawLines(a);
         break; }
     case PE_Frame:
diff --git a/src/gui/styles/qwindowsstyle.cpp b/src/gui/styles/qwindowsstyle.cpp
index 44f3f92..1dcfd00 100644
--- a/src/gui/styles/qwindowsstyle.cpp
+++ b/src/gui/styles/qwindowsstyle.cpp
@@ -1858,8 +1858,8 @@ void QWindowsStyle::drawControl(ControlElement ce, const QStyleOption *opt, QPai
             }
 
             QRect vCheckRect = visualRect(opt->direction, menuitem->rect, QRect(menuitem->rect.x(), menuitem->rect.y(), checkcol, menuitem->rect.height()));
-            if (checked) {
-                if (act && !dis) {
+            if (!menuitem->icon.isNull() && checked) {
+                if (act) {
                     qDrawShadePanel(p, vCheckRect,
                                     menuitem->palette, true, 1,
                                     &menuitem->palette.brush(QPalette::Button));
diff --git a/tests/auto/gui.pro b/tests/auto/gui.pro
index 186f00c..c752480 100644
--- a/tests/auto/gui.pro
+++ b/tests/auto/gui.pro
@@ -84,6 +84,7 @@ SUBDIRS=\
     qheaderview \
     qicoimageformat \
     qicon \
+    qidentityproxymodel \
     qimageiohandler \
     qimagereader \
     qimagewriter \
diff --git a/tests/auto/headers/tst_headers.cpp b/tests/auto/headers/tst_headers.cpp
index b5c65ef..b6135d0 100644
--- a/tests/auto/headers/tst_headers.cpp
+++ b/tests/auto/headers/tst_headers.cpp
@@ -243,6 +243,10 @@ void tst_Headers::licenseCheck()
         QCOMPARE(content.at(i++), QString("**"));
         if (sourceFile.endsWith("/tests/auto/modeltest/dynamictreemodel.cpp")
             || sourceFile.endsWith("/tests/auto/modeltest/dynamictreemodel.h")
+            || sourceFile.endsWith("/src/gui/itemviews/qidentityproxymodel.h")
+            || sourceFile.endsWith("/src/gui/itemviews/qidentityproxymodel.cpp")
+            || sourceFile.endsWith("/doc/src/snippets/code/src_gui_itemviews_qidentityproxymodel.cpp")
+            || sourceFile.endsWith("/tests/auto/qidentityproxymodel/tst_qidentityproxymodel.cpp")
             || sourceFile.endsWith("/src/network/kernel/qnetworkproxy_p.h"))
         {
             // These files are not copyrighted by Nokia.
diff --git a/tests/auto/qidentityproxymodel/qidentityproxymodel.pro b/tests/auto/qidentityproxymodel/qidentityproxymodel.pro
new file mode 100644
index 0000000..f529e20
--- /dev/null
+++ b/tests/auto/qidentityproxymodel/qidentityproxymodel.pro
@@ -0,0 +1,6 @@
+load(qttest_p4)
+
+INCLUDEPATH += $$PWD/../modeltest
+
+SOURCES         += tst_qidentityproxymodel.cpp ../modeltest/dynamictreemodel.cpp ../modeltest/modeltest.cpp
+HEADERS         += ../modeltest/dynamictreemodel.h ../modeltest/modeltest.h
diff --git a/tests/auto/qidentityproxymodel/tst_qidentityproxymodel.cpp b/tests/auto/qidentityproxymodel/tst_qidentityproxymodel.cpp
new file mode 100644
index 0000000..cfc3f1a
--- /dev/null
+++ b/tests/auto/qidentityproxymodel/tst_qidentityproxymodel.cpp
@@ -0,0 +1,334 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+#include "../../shared/util.h"
+
+#include <QtCore>
+#include <QtGui>
+
+#include "dynamictreemodel.h"
+#include "qidentityproxymodel.h"
+
+//TESTED CLASS=
+//TESTED_FILES=
+
+Q_DECLARE_METATYPE(QModelIndex)
+
+class tst_QIdentityProxyModel : public QObject
+{
+    Q_OBJECT
+
+public:
+
+    tst_QIdentityProxyModel();
+    virtual ~tst_QIdentityProxyModel();
+
+public slots:
+    void initTestCase();
+    void cleanupTestCase();
+    void init();
+    void cleanup();
+
+private slots:
+    void insertRows();
+    void removeRows();
+    void moveRows();
+    void reset();
+
+protected:
+    void verifyIdentity(QAbstractItemModel *model, const QModelIndex &parent = QModelIndex());
+
+private:
+    QStandardItemModel *m_model;
+    QIdentityProxyModel *m_proxy;
+};
+
+tst_QIdentityProxyModel::tst_QIdentityProxyModel()
+    : m_model(0), m_proxy(0)
+{
+
+}
+
+tst_QIdentityProxyModel::~tst_QIdentityProxyModel()
+{
+
+}
+
+void tst_QIdentityProxyModel::initTestCase()
+{
+    qRegisterMetaType<QModelIndex>("QModelIndex");
+
+    m_model = new QStandardItemModel(0, 1);
+    m_proxy = new QIdentityProxyModel();
+}
+
+void tst_QIdentityProxyModel::cleanupTestCase()
+{
+    delete m_proxy;
+    delete m_model;
+}
+
+void tst_QIdentityProxyModel::init()
+{
+}
+
+void tst_QIdentityProxyModel::cleanup()
+{
+    m_model->clear();
+    m_model->insertColumns(0, 1);
+}
+
+void tst_QIdentityProxyModel::verifyIdentity(QAbstractItemModel *model, const QModelIndex &parent)
+{
+    const int rows = model->rowCount(parent);
+    const int columns = model->columnCount(parent);
+    const QModelIndex proxyParent = m_proxy->mapFromSource(parent);
+
+    QVERIFY(m_proxy->mapToSource(proxyParent) == parent);
+    QVERIFY(rows == m_proxy->rowCount(proxyParent));
+    QVERIFY(columns == m_proxy->columnCount(proxyParent));
+
+    for (int row = 0; row < rows; ++row) {
+        for (int column = 0; column < columns; ++column) {
+            const QModelIndex idx = model->index(row, column, parent);
+            const QModelIndex proxyIdx = m_proxy->mapFromSource(idx);
+            QVERIFY(proxyIdx.model() == m_proxy);
+            QVERIFY(m_proxy->mapToSource(proxyIdx) == idx);
+            QVERIFY(proxyIdx.isValid());
+            QVERIFY(proxyIdx.row() == row);
+            QVERIFY(proxyIdx.column() == column);
+            QVERIFY(proxyIdx.parent() == proxyParent);
+            QVERIFY(proxyIdx.data() == idx.data());
+            QVERIFY(proxyIdx.flags() == idx.flags());
+            const int childCount = m_proxy->rowCount(proxyIdx);
+            const bool hasChildren = m_proxy->hasChildren(proxyIdx);
+            QVERIFY(model->hasChildren(idx) == hasChildren);
+            QVERIFY((childCount > 0) == hasChildren);
+
+            if (hasChildren)
+                verifyIdentity(model, idx);
+        }
+    }
+}
+
+/*
+  tests
+*/
+
+void tst_QIdentityProxyModel::insertRows()
+{
+    QStandardItem *parentItem = m_model->invisibleRootItem();
+    for (int i = 0; i < 4; ++i) {
+        QStandardItem *item = new QStandardItem(QString("item %0").arg(i));
+        parentItem->appendRow(item);
+        parentItem = item;
+    }
+
+    m_proxy->setSourceModel(m_model);
+
+    verifyIdentity(m_model);
+
+    QSignalSpy modelBeforeSpy(m_model, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)));
+    QSignalSpy modelAfterSpy(m_model, SIGNAL(rowsInserted(QModelIndex,int,int)));
+    QSignalSpy proxyBeforeSpy(m_proxy, SIGNAL(rowsAboutToBeInserted(QModelIndex,int,int)));
+    QSignalSpy proxyAfterSpy(m_proxy, SIGNAL(rowsInserted(QModelIndex,int,int)));
+
+    QStandardItem *item = new QStandardItem(QString("new item"));
+    parentItem->appendRow(item);
+
+    QVERIFY(modelBeforeSpy.size() == 1 && 1 == proxyBeforeSpy.size());
+    QVERIFY(modelAfterSpy.size() == 1 && 1 == proxyAfterSpy.size());
+
+    QVERIFY(modelBeforeSpy.first().first().value<QModelIndex>() == m_proxy->mapToSource(proxyBeforeSpy.first().first().value<QModelIndex>()));
+    QVERIFY(modelBeforeSpy.first().at(1) == proxyBeforeSpy.first().at(1));
+    QVERIFY(modelBeforeSpy.first().at(2) == proxyBeforeSpy.first().at(2));
+
+    QVERIFY(modelAfterSpy.first().first().value<QModelIndex>() == m_proxy->mapToSource(proxyAfterSpy.first().first().value<QModelIndex>()));
+    QVERIFY(modelAfterSpy.first().at(1) == proxyAfterSpy.first().at(1));
+    QVERIFY(modelAfterSpy.first().at(2) == proxyAfterSpy.first().at(2));
+
+    verifyIdentity(m_model);
+
+}
+
+void tst_QIdentityProxyModel::removeRows()
+{
+    QStandardItem *parentItem = m_model->invisibleRootItem();
+    for (int i = 0; i < 4; ++i) {
+        QStandardItem *item = new QStandardItem(QString("item %0").arg(i));
+        parentItem->appendRow(item);
+        parentItem = item;
+    }
+
+    m_proxy->setSourceModel(m_model);
+
+    verifyIdentity(m_model);
+
+    QSignalSpy modelBeforeSpy(m_model, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)));
+    QSignalSpy modelAfterSpy(m_model, SIGNAL(rowsRemoved(QModelIndex,int,int)));
+    QSignalSpy proxyBeforeSpy(m_proxy, SIGNAL(rowsAboutToBeRemoved(QModelIndex,int,int)));
+    QSignalSpy proxyAfterSpy(m_proxy, SIGNAL(rowsRemoved(QModelIndex,int,int)));
+
+    const QModelIndex topLevel = m_model->index(0, 0, QModelIndex());
+    const QModelIndex secondLevel = m_model->index(0, 0, topLevel);
+    const QModelIndex thirdLevel = m_model->index(0, 0, secondLevel);
+
+    QVERIFY(thirdLevel.isValid());
+
+    m_model->removeRow(0, secondLevel);
+
+    QVERIFY(modelBeforeSpy.size() == 1 && 1 == proxyBeforeSpy.size());
+    QVERIFY(modelAfterSpy.size() == 1 && 1 == proxyAfterSpy.size());
+
+    QVERIFY(modelBeforeSpy.first().first().value<QModelIndex>() == m_proxy->mapToSource(proxyBeforeSpy.first().first().value<QModelIndex>()));
+    QVERIFY(modelBeforeSpy.first().at(1) == proxyBeforeSpy.first().at(1));
+    QVERIFY(modelBeforeSpy.first().at(2) == proxyBeforeSpy.first().at(2));
+
+    QVERIFY(modelAfterSpy.first().first().value<QModelIndex>() == m_proxy->mapToSource(proxyAfterSpy.first().first().value<QModelIndex>()));
+    QVERIFY(modelAfterSpy.first().at(1) == proxyAfterSpy.first().at(1));
+    QVERIFY(modelAfterSpy.first().at(2) == proxyAfterSpy.first().at(2));
+
+    verifyIdentity(m_model);
+}
+
+void tst_QIdentityProxyModel::moveRows()
+{
+    DynamicTreeModel model;
+
+    {
+        ModelInsertCommand insertCommand(&model);
+        insertCommand.setStartRow(0);
+        insertCommand.setEndRow(9);
+        insertCommand.doCommand();
+    }
+    {
+        ModelInsertCommand insertCommand(&model);
+        insertCommand.setAncestorRowNumbers(QList<int>() << 5);
+        insertCommand.setStartRow(0);
+        insertCommand.setEndRow(9);
+        insertCommand.doCommand();
+    }
+
+    m_proxy->setSourceModel(&model);
+
+    verifyIdentity(&model);
+
+    QSignalSpy modelBeforeSpy(&model, SIGNAL(rowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)));
+    QSignalSpy modelAfterSpy(&model, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)));
+    QSignalSpy proxyBeforeSpy(m_proxy, SIGNAL(rowsAboutToBeMoved(QModelIndex,int,int,QModelIndex,int)));
+    QSignalSpy proxyAfterSpy(m_proxy, SIGNAL(rowsMoved(QModelIndex,int,int,QModelIndex,int)));
+
+    {
+        ModelMoveCommand moveCommand(&model, 0);
+        moveCommand.setAncestorRowNumbers(QList<int>() << 5);
+        moveCommand.setStartRow(3);
+        moveCommand.setEndRow(4);
+        moveCommand.setDestRow(1);
+        moveCommand.doCommand();
+    }
+
+    QVERIFY(modelBeforeSpy.size() == 1 && 1 == proxyBeforeSpy.size());
+    QVERIFY(modelAfterSpy.size() == 1 && 1 == proxyAfterSpy.size());
+
+    QVERIFY(modelBeforeSpy.first().first().value<QModelIndex>() == m_proxy->mapToSource(proxyBeforeSpy.first().first().value<QModelIndex>()));
+    QVERIFY(modelBeforeSpy.first().at(1) == proxyBeforeSpy.first().at(1));
+    QVERIFY(modelBeforeSpy.first().at(2) == proxyBeforeSpy.first().at(2));
+    QVERIFY(modelBeforeSpy.first().at(3).value<QModelIndex>() == m_proxy->mapToSource(proxyBeforeSpy.first().at(3).value<QModelIndex>()));
+    QVERIFY(modelBeforeSpy.first().at(4) == proxyBeforeSpy.first().at(4));
+
+    QVERIFY(modelAfterSpy.first().first().value<QModelIndex>() == m_proxy->mapToSource(proxyAfterSpy.first().first().value<QModelIndex>()));
+    QVERIFY(modelAfterSpy.first().at(1) == proxyAfterSpy.first().at(1));
+    QVERIFY(modelAfterSpy.first().at(2) == proxyAfterSpy.first().at(2));
+    QVERIFY(modelAfterSpy.first().at(3).value<QModelIndex>() == m_proxy->mapToSource(proxyAfterSpy.first().at(3).value<QModelIndex>()));
+    QVERIFY(modelAfterSpy.first().at(4) == proxyAfterSpy.first().at(4));
+
+    verifyIdentity(&model);
+
+    m_proxy->setSourceModel(0);
+}
+
+void tst_QIdentityProxyModel::reset()
+{
+    DynamicTreeModel model;
+
+    {
+        ModelInsertCommand insertCommand(&model);
+        insertCommand.setStartRow(0);
+        insertCommand.setEndRow(9);
+        insertCommand.doCommand();
+    }
+    {
+        ModelInsertCommand insertCommand(&model);
+        insertCommand.setAncestorRowNumbers(QList<int>() << 5);
+        insertCommand.setStartRow(0);
+        insertCommand.setEndRow(9);
+        insertCommand.doCommand();
+    }
+
+    m_proxy->setSourceModel(&model);
+
+    verifyIdentity(&model);
+
+    QSignalSpy modelBeforeSpy(&model, SIGNAL(modelAboutToBeReset()));
+    QSignalSpy modelAfterSpy(&model, SIGNAL(modelReset()));
+    QSignalSpy proxyBeforeSpy(m_proxy, SIGNAL(modelAboutToBeReset()));
+    QSignalSpy proxyAfterSpy(m_proxy, SIGNAL(modelReset()));
+
+    {
+        ModelResetCommandFixed resetCommand(&model, 0);
+        resetCommand.setAncestorRowNumbers(QList<int>() << 5);
+        resetCommand.setStartRow(3);
+        resetCommand.setEndRow(4);
+        resetCommand.setDestRow(1);
+        resetCommand.doCommand();
+    }
+
+    QVERIFY(modelBeforeSpy.size() == 1 && 1 == proxyBeforeSpy.size());
+    QVERIFY(modelAfterSpy.size() == 1 && 1 == proxyAfterSpy.size());
+
+    verifyIdentity(&model);
+    m_proxy->setSourceModel(0);
+}
+
+QTEST_MAIN(tst_QIdentityProxyModel)
+#include "tst_qidentityproxymodel.moc"