3 files changed, 88 insertions, 37 deletions
diff --git a/src/corelib/CMakeLists.txt b/src/corelib/CMakeLists.txt
index b0bcdf69cb..2c991f76e0 100644
--- a/src/corelib/CMakeLists.txt
+++ b/src/corelib/CMakeLists.txt
@@ -1010,7 +1010,7 @@ qt_internal_extend_target(Core CONDITION QT_FEATURE_concatenatetablesproxymodel
 
 qt_internal_extend_target(Core CONDITION QT_FEATURE_identityproxymodel AND QT_FEATURE_proxymodel
     SOURCES
-        itemmodels/qidentityproxymodel.cpp itemmodels/qidentityproxymodel.h
+        itemmodels/qidentityproxymodel.cpp itemmodels/qidentityproxymodel.h itemmodels/qidentityproxymodel_p.h
 )
 
 qt_internal_extend_target(Core CONDITION QT_FEATURE_proxymodel AND QT_FEATURE_sortfilterproxymodel
diff --git a/src/corelib/itemmodels/qidentityproxymodel.cpp b/src/corelib/itemmodels/qidentityproxymodel.cpp
index b2bc43d126..6111cef993 100644
--- a/src/corelib/itemmodels/qidentityproxymodel.cpp
+++ b/src/corelib/itemmodels/qidentityproxymodel.cpp
@@ -38,47 +38,12 @@
 ****************************************************************************/
 
 #include "qidentityproxymodel.h"
+#include "qidentityproxymodel_p.h"
 #include "qitemselectionmodel.h"
 #include <private/qabstractproxymodel_p.h>
 
 QT_BEGIN_NAMESPACE
 
-class QIdentityProxyModelPrivate : public QAbstractProxyModelPrivate
-{
-    QIdentityProxyModelPrivate()
-    {
-
-    }
-
-    Q_DECLARE_PUBLIC(QIdentityProxyModel)
-
-    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, const QList<int> &roles);
-    void _q_sourceHeaderDataChanged(Qt::Orientation orientation, int first, int last);
-
-    void _q_sourceLayoutAboutToBeChanged(const QList<QPersistentModelIndex> &sourceParents, QAbstractItemModel::LayoutChangeHint hint);
-    void _q_sourceLayoutChanged(const QList<QPersistentModelIndex> &sourceParents, QAbstractItemModel::LayoutChangeHint hint);
-    void _q_sourceModelAboutToBeReset();
-    void _q_sourceModelReset();
-
-};
-
 /*!
     \since 4.8
     \class QIdentityProxyModel
diff --git a/src/corelib/itemmodels/qidentityproxymodel_p.h b/src/corelib/itemmodels/qidentityproxymodel_p.h
new file mode 100644
index 0000000000..b8f434b9ec
--- /dev/null
+++ b/src/corelib/itemmodels/qidentityproxymodel_p.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+**
+** Copyright (C) 2021 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Stephen Kelly <stephen.kelly@kdab.com>
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QIDENTITYPROXYMODEL_P_H
+#define QIDENTITYPROXYMODEL_P_H
+
+#include <QtCore/private/qabstractproxymodel_p.h>
+#include <QtCore/qidentityproxymodel.h>
+
+QT_BEGIN_NAMESPACE
+
+class Q_CORE_EXPORT QIdentityProxyModelPrivate : public QAbstractProxyModelPrivate
+{
+    Q_DECLARE_PUBLIC(QIdentityProxyModel)
+
+public:
+    QIdentityProxyModelPrivate()
+    {
+    }
+
+    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, const QList<int> &roles);
+    void _q_sourceHeaderDataChanged(Qt::Orientation orientation, int first, int last);
+
+    void _q_sourceLayoutAboutToBeChanged(const QList<QPersistentModelIndex> &sourceParents, QAbstractItemModel::LayoutChangeHint hint);
+    void _q_sourceLayoutChanged(const QList<QPersistentModelIndex> &sourceParents, QAbstractItemModel::LayoutChangeHint hint);
+    void _q_sourceModelAboutToBeReset();
+    void _q_sourceModelReset();
+
+};
+
+QT_END_NAMESPACE
+
+#endif // QIDENTITYPROXYMODEL_P_H