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diff --git a/kpovmodeler/pmlibraryobject.h b/kpovmodeler/pmlibraryobject.h
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+//-*-C++-*-
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2002 by Luis Carvalho
+    email                : lpassos@mail.telepac.pt
+**************************************************************************
+
+**************************************************************************
+*                                                                        *
+*  This program 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.                                   *
+*                                                                        *
+**************************************************************************/
+
+#ifndef PMLIBRARYOBJECT_H
+#define PMLIBRARYOBJECT_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <qstring.h>
+#include <qmap.h>
+#include <qvaluelist.h>
+#include <kstaticdeleter.h>
+#include <qstringlist.h>
+
+class KURL;
+class KArchive;
+class KTar;
+class QImage;
+
+/**
+ * This class implements a library object.
+ *
+ * A library object has a name, a textual description, a graphical 
+ * preview and the object data, of course. It also contains a collection of
+ * keywords.
+ *
+ * When an instance of PMLibraryObject is created, the objects description is
+ * loaded.
+ *
+ * The graphical preview and the objects data are loaded only if needed.
+ *
+ */
+class PMLibraryObject
+{
+public:
+   /** 
+    * Constructor for the library object. Creates an empty library object. 
+    */
+   PMLibraryObject( );
+   /** 
+    * Constructor for the library object. 
+    * Loads the object data from the specified library object file.
+    */
+   PMLibraryObject( KURL u );
+   /** 
+    * Destructor 
+    */
+   ~PMLibraryObject( );
+
+   /** 
+    * Name of the library object. 
+    */
+   QString name( ) const { return m_name; }
+   /** 
+    * Textual description of the library object. 
+    */
+   QString description( ) const { return m_description; }
+   /** 
+    * List of keywords for search of the library object. 
+    */
+   QString keywords( ) const { return m_keywords; }
+   /** 
+    * Graphical Preview. 
+    */
+   QImage* preview( );
+   /**
+    * True is the preview has been loaded.
+    */
+   bool isPreviewLoaded( ) const { return m_previewLoaded; }
+   /** 
+    * Objects for the scene 
+    */
+   QByteArray* objects( );
+   bool areObjectsLoaded( ) const { return m_objectsLoaded; }
+
+   /** 
+    * Set the library object name 
+    */
+   void setName( const QString& str );
+   /** 
+    * Set the library object description 
+    */
+   void setDescription( const QString& str );
+   /** 
+    * Set the library object keywords 
+    */
+   void setKeywords( const QString& str );
+   /** 
+    * Set the preview image 
+    */
+   void setPreview( const QImage& img );
+   /** 
+    * Set the object data 
+    */
+   void setObjects( const QByteArray& obj );
+
+   /** 
+    * Save the library object to a file 
+    */
+   void save( const QString& fileName );
+
+private:
+   void loadLibraryInfo( );
+   void saveLibraryInfo( );
+   void savePreview( );
+   void saveObjects( );
+
+   bool        m_previewLoaded;
+   bool        m_objectsLoaded;
+   QString     m_name;
+   QString     m_description;
+   QString     m_keywords;
+   KTar*       m_data;
+   QImage*     m_preview;
+   QByteArray* m_objects;
+   QStringList m_extraFiles;
+};
+
+#endif