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diff --git a/src/backend/bookshelfmodel/btbookshelffiltermodel.h b/src/backend/bookshelfmodel/btbookshelffiltermodel.h
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+++ b/src/backend/bookshelfmodel/btbookshelffiltermodel.h
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+/*********
+*
+* In the name of the Father, and of the Son, and of the Holy Spirit.
+*
+* This file is part of BibleTime's source code, http://www.bibletime.info/.
+*
+* Copyright 1999-2009 by the BibleTime developers.
+* The BibleTime source code is licensed under the GNU General Public License
+* version 2.0.
+*
+**********/
+
+#ifndef BTBOOKSHELFFILTERMODEL_H
+#define BTBOOKSHELFFILTERMODEL_H
+
+#include <QSortFilterProxyModel>
+
+#include "backend/drivers/cswordmoduleinfo.h"
+
+
+class BtBookshelfFilterModel: public QSortFilterProxyModel {
+    Q_OBJECT
+    public:
+        BtBookshelfFilterModel(QObject *parent = 0);
+        virtual ~BtBookshelfFilterModel();
+
+        // Common methods:
+        inline bool enabled() const {
+            return m_enabled;
+        }
+
+        virtual bool filterAcceptsRow(int row, const QModelIndex &parent) const;
+
+        // Name filter:
+        inline int nameFilterRole() const {
+            return m_nameFilterRole;
+        }
+
+        inline int nameFilterKeyColumn() const {
+            return m_nameFilterColumn;
+        }
+
+        inline const QString &nameFilter() const {
+            return m_nameFilter;
+        }
+
+        inline const Qt::CaseSensitivity nameFilterCase() const {
+            return m_nameFilterCase;
+        }
+
+        // Hidden filter:
+        int hiddenFilterRole() const {
+            return m_hiddenFilterRole;
+        }
+
+        int hiddenFilterKeyColumn() const {
+            return m_hiddenFilterColumn;
+        }
+
+        inline bool showHidden() const {
+            return m_showHidden;
+        }
+
+        inline bool showShown() const {
+            return m_showShown;
+        }
+
+        // Category filter:
+        int categoryFilterRole() const {
+            return m_categoryFilterRole;
+        }
+
+        int categoryFilterKeyColumn() const {
+            return m_categoryFilterColumn;
+        }
+
+        inline CSwordModuleInfo::Categories shownCategories() const {
+            return m_categoryFilter;
+        }
+
+    public slots:
+        void setEnabled(bool enable);
+
+        // Name filter:
+        void setNameFilterRole(int role);
+        void setNameFilterKeyColumn(int column);
+        void setNameFilterFixedString(const QString &nameFilter);
+        void setNameFilterCase(Qt::CaseSensitivity value);
+
+        // Hidden filter:
+        void setHiddenFilterRole(int role);
+        void setHiddenFilterKeyColumn(int column);
+        void setShowHidden(bool show);
+        void setShowShown(bool show);
+
+        // Category filter:
+        void setCategoryFilterRole(int role);
+        void setCategoryFilterKeyColumn(int column);
+        void setShownCategories(const CSwordModuleInfo::Categories &categories);
+
+    protected:
+        bool nameFilterAcceptsRow(int row, const QModelIndex &parent) const;
+        bool hiddenFilterAcceptsRow(int row, const QModelIndex &parent) const;
+        bool categoryFilterAcceptsRow(int row, const QModelIndex &parent) const;
+
+    protected:
+        bool m_enabled;
+
+        // Name filter:
+        QString m_nameFilter;
+        int m_nameFilterRole;
+        int m_nameFilterColumn;
+        Qt::CaseSensitivity  m_nameFilterCase;
+
+        // Hidden filter:
+        int m_hiddenFilterRole;
+        int m_hiddenFilterColumn;
+        bool m_showHidden;
+        bool m_showShown;
+
+        // Categories filter:
+        CSwordModuleInfo::Categories m_categoryFilter;
+        int m_categoryFilterRole;
+        int m_categoryFilterColumn;
+};
+
+#endif // BTBOOKSHELFFILTERMODEL_H