/usr/include/podofo/doc/PdfPagesTreeCache.h is in libpodofo-dev 0.9.4-6.
This file is owned by root:root, with mode 0o644.
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* Copyright (C) 2009 by Dominik Seichter *
* domseichter@web.de *
* *
* This program 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 program 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 Library General Public *
* License along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
* In addition, as a special exception, the copyright holders give *
* permission to link the code of portions of this program with the *
* OpenSSL library under certain conditions as described in each *
* individual source file, 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 OpenSSL. If you modify *
* file(s) with this exception, you may extend this exception to your *
* version of the file(s), but you are not obligated to do so. If you *
* do not wish to do so, delete this exception statement from your *
* version. If you delete this exception statement from all source *
* files in the program, then also delete it here. *
***************************************************************************/
#ifndef _PDF_PAGES_TREE_CACHE_H_
#define _PDF_PAGES_TREE_CACHE_H_
#include "podofo/base/PdfDefines.h"
namespace PoDoFo {
class PdfPage;
/**
* This class implements a cache infront of a PdfPagesTree
*
* \see PdfCachedPagesTree
*/
class PODOFO_DOC_API PdfPagesTreeCache
{
typedef std::deque< PdfPage* > PdfPageList;
public:
/** Construct a new PdfCachedPagesTree.
*
* @param nInitialSize initial size of the pagestree
*/
PdfPagesTreeCache( int nInitialSize );
/** Close/down destruct a PdfCachedPagesTree
*/
virtual ~PdfPagesTreeCache();
/** Return a PdfPage for the specified Page index
* The returned page is owned by the pages tree and
* deleted along with it.
*
* \param nIndex page index, 0-based
* \returns a pointer to the requested page or NULL if it is not cached
*/
virtual PdfPage* GetPage( int nIndex );
/**
* Add a PdfPage object to the cache
* @param nIndex index of the page
* @param pPage page object
*/
virtual void AddPageObject( int nIndex, PdfPage* pPage );
/**
* Add several PdfPage objects to the cache, replacing any existing at the given index
* @param nIndex zero based index of where the first page will be placed
* @param vecPages vector of the page objects to add
*/
virtual void AddPageObjects( int nIndex, std::vector<PdfPage*> vecPages );
/**
* A page was inserted into the pagestree,
* therefore the cache has to be updated
*
* @param nAfterPageIndex zero based index of the page we are inserting after
* - may be one of the special values from EPdfPageInsertionPoint.
*/
virtual void InsertPage( int nAfterPageIndex );
/**
* Insert several pages into the pagestree, after the given index
* therefore the cache has to be updated
*
* @param nAfterPageIndex zero based index of the page we are inserting after
* - may be one of the special values from EPdfPageInsertionPoint.
* @param nCount number of pages that were inserted
*/
virtual void InsertPages( int nAfterPageIndex, int nCount );
/**
* Delete a PdfPage from the cache
* @param nIndex index of the page
*/
virtual void DeletePage( int nIndex );
/**
* Clear cache, i.e. remove all elements from the
* cache.
*/
virtual void ClearCache();
private:
/**
* Avoid construction of empty objects
*/
PdfPagesTreeCache() { }
private:
PdfPageList m_deqPageObjs;
};
};
#endif // _PDF_PAGES_TREE_CACHE_H_
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