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diff --git a/ui/qt/models/expert_info_proxy_model.h b/ui/qt/models/expert_info_proxy_model.h
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+++ b/ui/qt/models/expert_info_proxy_model.h
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+/** @file
+ *
+ * Data model for Expert Info tap data.
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef EXPERT_INFO_PROXY_MODEL_H
+#define EXPERT_INFO_PROXY_MODEL_H
+
+#include <config.h>
+
+#include <QSortFilterProxyModel>
+
+class ExpertPacketItem;
+
+class ExpertInfoProxyModel : public QSortFilterProxyModel
+{
+    Q_OBJECT
+
+public:
+    ExpertInfoProxyModel(QObject *parent = 0);
+
+    enum SeverityMode { Group, Packet };
+    enum ExpertProxyColumn {
+        colProxySeverity = 0,
+        colProxySummary,
+        colProxyGroup,
+        colProxyProtocol,
+        colProxyCount,
+        colProxyLast
+    };
+
+    QVariant data(const QModelIndex &index, int role) const;
+    QVariant headerData(int section, Qt::Orientation orientation,
+                        int role = Qt::DisplayRole) const;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+
+    virtual bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const;
+
+    //GUI helpers
+    void setSeverityMode(enum SeverityMode);
+    void setSeverityFilter(int severity, bool hide);
+    void setSummaryFilter(const QString &filter);
+
+protected:
+    bool lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const;
+    bool filterAcceptItem(ExpertPacketItem& item) const;
+
+    enum SeverityMode severityMode_;
+    QList<int> hidden_severities_;
+
+    QString textFilter_;
+
+};
+
+#endif // EXPERT_INFO_PROXY_MODEL_H