1 files changed, 27 insertions, 22 deletions
diff --git a/src/render/materialsystem/filterkey_p.h b/src/render/materialsystem/filterkey_p.h
index fc9a0909d..1fe6bba7b 100644
--- a/src/render/materialsystem/filterkey_p.h
+++ b/src/render/materialsystem/filterkey_p.h
@@ -5,8 +5,7 @@
 **
 ** This file is part of the Qt3D module of the Qt Toolkit.
 **
-** $QT_BEGIN_LICENSE:COMM$
-**
+** $QT_BEGIN_LICENSE:LGPL$
 ** Commercial License Usage
 ** Licensees holding valid commercial Qt licenses may use this file in
 ** accordance with the commercial license agreement provided with the
@@ -15,25 +14,26 @@
 ** and conditions see https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
-** $QT_END_LICENSE$
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
-**
+** 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.
 **
+** $QT_END_LICENSE$
 **
 ****************************************************************************/
 
@@ -72,10 +72,15 @@ public:
     const QVariant &value() const { return m_value; }
     const QString &name() const { return m_name; }
     void syncFromFrontEnd(const Qt3DCore::QNode *frontEnd, bool firstTime) override;
-    bool operator ==(const FilterKey &other);
-    bool operator !=(const FilterKey &other);
+
+    friend bool operator==(const FilterKey &lhs, const FilterKey &rhs)
+    { return lhs.equals(rhs); }
+    friend bool operator !=(const FilterKey &lhs, const FilterKey &rhs)
+    { return !lhs.equals(rhs); }
 
 private:
+    bool equals(const FilterKey &other) const;
+
     QVariant m_value;
     QString m_name;
 };