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diff --git a/kabc/sortmode.h b/kabc/sortmode.h
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+/*
+    This file is part of libkabc.
+    Copyright (c) 2004 Tobias Koenig <tokoe@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef KABC_SORTMODE_H
+#define KABC_SORTMODE_H
+
+#include <kdelibs_export.h>
+
+#include <kabc/addressee.h>
+
+namespace KABC {
+
+/**
+  @short Sort method for sorting an addressee list.
+
+  This interface should be reimplemented by classes which shall act as
+  SortModes for KABC::AddresseeList.
+*/
+class KABC_EXPORT SortMode
+{
+  public:
+    /**
+      Reimplement this method and return whether the first contact is 'smaller'
+      than the second.
+     */
+    virtual bool lesser( const KABC::Addressee &first, const KABC::Addressee &second ) const = 0;
+};
+
+class KABC_EXPORT NameSortMode : public SortMode
+{
+  public:
+    enum NameType
+    {
+      FormattedName,
+      FamilyName,
+      GivenName
+    };
+
+    /**
+      Constructor.
+
+      Creates a NameSortMethod with FormattedName as name type set.
+     */
+    NameSortMode();
+
+    /**
+      Constructor.
+
+      Creates a NameSortMethod with the specified name type.
+
+      @param type The name type.
+      @param ascending true for ascending sort, false for descending.
+     */
+    NameSortMode( NameType type, bool ascending = true );
+
+    /**
+      Returns whether the first contact is 'smaller' then the second.
+     */
+    virtual bool lesser( const KABC::Addressee&, const KABC::Addressee& ) const;
+
+  private:
+    NameType mNameType;
+    bool mAscendingOrder;
+
+    class NameSortModePrivate;
+    NameSortModePrivate *d;
+};
+
+class KABC_EXPORT FieldSortMode : public SortMode
+{
+  public:
+    /**
+      Constructor.
+
+      Creates a FieldSortMethod with the specified field.
+
+      @param field The field.
+      @param ascending true for ascending sort, false for descending.
+     */
+    FieldSortMode( KABC::Field *field, bool ascending = true );
+
+    /**
+      Returns whether the first contact is 'smaller' then the second.
+     */
+    virtual bool lesser( const KABC::Addressee&, const KABC::Addressee& ) const;
+
+  private:
+    KABC::Field *mField;
+    bool mAscendingOrder;
+
+    class FieldSortModePrivate;
+    FieldSortModePrivate *d;
+};
+
+}
+
+#endif