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110 lines
3.2 KiB
110 lines
3.2 KiB
/*
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*
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* This file is part of KMail, the KDE mail client.
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* Copyright (c) 2003 Carsten Burghardt <burghardt@kde.org>
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*
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* KMail is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* KMail is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of this program with any edition of
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* the TQt library by Trolltech AS, Norway (or with modified versions
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* of TQt that use the same license as TQt), and distribute linked
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* combinations including the two. You must obey the GNU General
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* Public License in all respects for all of the code used other than
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* TQt. If you modify this file, you may extend this exception to
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* your version of the file, but you are not obligated to do so. If
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* you do not wish to do so, delete this exception statement from
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* your version.
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*/
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#ifndef bodyiterator_h
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#define bodyiterator_h
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#include <tqptrlist.h>
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#include <tqstringlist.h>
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class KMMessagePart;
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namespace KMail {
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class AttachmentStrategy;
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// Base class
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class BodyVisitor
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{
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public:
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BodyVisitor();
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virtual ~BodyVisitor();
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/** Register the parts that should be visited */
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void visit( KMMessagePart * part );
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void visit( TQPtrList<KMMessagePart> & list );
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/** Returns a list of parts that should be loaded */
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TQPtrList<KMMessagePart> partsToLoad();
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/** Decides whether a part should be loaded.
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This needs to be implemented by a subclass */
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virtual bool addPartToList( KMMessagePart * part ) = 0;
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protected:
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/**
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* Checks if one of the parents needs loaded children
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* This is e.g. needed for multipart/signed where all parts have to be loaded
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*/
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static bool parentNeedsLoading( KMMessagePart * part );
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protected:
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TQPtrList<KMMessagePart> mParts;
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TQStringList mBasicList;
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};
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// Factory to create a visitor according to the Attachment Strategy
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class BodyVisitorFactory
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{
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public:
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static BodyVisitor* getVisitor( const AttachmentStrategy* strategy );
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};
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// Visitor for smart attachment display
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class BodyVisitorSmart: public BodyVisitor
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{
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public:
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BodyVisitorSmart();
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bool addPartToList( KMMessagePart * part );
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};
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// Visitor for inline attachment display
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class BodyVisitorInline: public BodyVisitor
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{
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public:
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BodyVisitorInline();
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bool addPartToList( KMMessagePart * part );
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};
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// Visitor for hidden attachment display
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class BodyVisitorHidden: public BodyVisitor
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{
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public:
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BodyVisitorHidden();
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bool addPartToList( KMMessagePart * part );
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};
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}
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#endif
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