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                          docclipbaseiterator.h  -  description
    begin                : Sat Aug 10 2002
    copyright            : (C) 2002 by Jason Wood
    email                : jasonwood@blueyonder.co.uk

 *                                                                         *
 *   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.                                   *
 *                                                                         *


#include <qptrlist.h>
#include "docclipbase.h"

/**An List for DocClipBase objects. Use this instead of QPtrList<DocClipBase> so as to sort lists correctly.
      * Also contains the ability to set a "master clip", which can be used by a number of operations where
      * the need for one clip to act as a reference for what happens to all clips is needed.
  * @author Jason Wood
class ClipManager;
class KRender;

class DocClipBaseList:public QPtrList < DocClipBase > {
    DocClipBaseList(const DocClipBaseList & list);
     DocClipBaseList & operator=(const DocClipBaseList & list);
      /** Returns an XML version of this DocClipBaseList. The root element will take the name passed in.*/
    QDomDocument toXML(const QString & name);
      /** Sets the master clip to the one specified. If the clip is not in the clip list, then the
      method does not do anything. */
    void setMasterClip(DocClipBase * clip);
      /** Returns the current master clip for this cliplist. */
    DocClipBase *masterClip() const;

      /** Populates this clip list with the clips passed in via elem. */
    void generateFromXML(KdenliveDoc * doc, QDomElement elem);
  private:              // Private attributes
      /** The "master clip" of this list. The master clip is special only in that it is mentioned
      seperately to every other clip in the clip list; it also appears in the clip list. It is
      singled out so that operations that require a master clip can     make use of it. */
     DocClipBase * m_masterClip;


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