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+/*  -*- mode: C++; c-file-style: "gnu" -*-
+    bodypartformatter.h
+
+    This file is part of KMail's plugin interface.
+    Copyright (c) 2004 Marc Mutz <mutz@kde.org>,
+                       Ingo Kloecker <kloecker@kde.org>
+
+    KMail is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    KMail 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
+    General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#ifndef __KMAIL_INTERFACE_BODYPARTFORMATTER_H__
+#define __KMAIL_INTERFACE_BODYPARTFORMATTER_H__
+
+namespace KMail {
+
+  class HtmlWriter;
+
+  namespace Interface {
+
+    class BodyPart;
+    class BodyPartURLHandler;
+
+    class BodyPartFormatter {
+    public:
+      virtual ~BodyPartFormatter() {}
+
+      /** 
+	  @li Ok returned when format() generated some HTML
+	  @li NeedContent returned when format() needs the body of the part
+	  @li AsIcon returned when the part should be shown iconified
+	  @li Failed returned when formatting failed. Currently equivalent to Ok
+      */
+      enum Result { Ok, NeedContent, AsIcon, Failed };
+
+      /**
+	 Format body part \a part by generating some HTML and writing
+	 that to \a writer.
+
+	 @return the result code (see above)
+      */
+      virtual Result format( BodyPart * part, KMail::HtmlWriter * writer ) const = 0;
+    };
+
+    /**
+       @short interface for BodyPartFormatter plugins
+
+       The interface is queried by for types, subtypes, and the
+       corresponding bodypart formatter, and the result inserted into
+       the bodypart formatter factory.
+
+       Subtype alone or both type and subtype may be "*", which is
+       taken as a wildcard, so that e.g. type=text subtype=* matches
+       any text subtype, but with lesser specificity than a concrete
+       mimetype such as text/plain. type=* is only allowed when
+       subtype=*, too.
+    */
+    class BodyPartFormatterPlugin {
+    public:
+      virtual ~BodyPartFormatterPlugin() {}
+
+      virtual const BodyPartFormatter * bodyPartFormatter( int idx ) const = 0;
+      virtual const char * type( int idx ) const = 0;
+      virtual const char * subtype( int idx ) const = 0;
+
+      virtual const BodyPartURLHandler * urlHandler( int idx ) const = 0;
+    };
+
+  } // namespace Interface
+
+} // namespace KMail
+
+#endif // __KMAIL_INTERFACE_BODYPARTFORMATTER_H__