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/* This file is part of the KDE libraries
* Copyright (C) 1999 Waldo Bastian <bastian@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation;
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#ifndef __tdesycocafactory_h__
#define __tdesycocafactory_h__
#include "tdesycocatype.h"
#include "tdesycocaentry.h"
#include <tqdict.h>
#include <tqptrlist.h>
class KSycoca;
class TQStringList;
class TQString;
class KSycocaDict;
class KSycocaResourceList;
typedef TQDict<KSycocaEntry::Ptr> KSycocaEntryDict;
/**
* @internal
* Base class for sycoca factories
*/
class TDECORE_EXPORT KSycocaFactory
{
public:
virtual KSycocaFactoryId factoryId() const = 0;
protected: // virtual class
/**
* Create a factory which can be used to lookup from/create a database
* (depending on KSycoca::isBuilding())
*/
KSycocaFactory( KSycocaFactoryId factory_id );
public:
virtual ~KSycocaFactory();
/**
* @return the position of the factory in the sycoca file
*/
int offset() { return mOffset; }
/**
* @return the dict, for special use by KBuildSycoca
*/
KSycocaEntryDict * entryDict() { return m_entryDict; }
/**
* Construct an entry from a config file.
* To be implemented in the real factories.
*/
virtual KSycocaEntry *createEntry(const TQString &file, const char *resource) = 0;
/**
* Add an entry
*/
virtual void addEntry(KSycocaEntry *newEntry, const char *resource);
/**
* Remove an entry
* Not very fast, use with care. O(N)
*/
void removeEntry(KSycocaEntry *newEntry);
/**
* Read an entry from the database
*/
virtual KSycocaEntry *createEntry(int offset)=0;
/**
* Get a list of all entries from the database.
*/
KSycocaEntry::List allEntries();
/**
* Saves all entries it maintains as well as index files
* for these entries to the stream 'str'.
*
* Also sets mOffset to the starting position.
*
* The stream is positioned at the end of the last index.
*
* Don't forget to call the parent first when you override
* this function.
*/
virtual void save(TQDataStream &str);
/**
* Writes out a header to the stream 'str'.
* The baseclass positions the stream correctly.
*
* Don't forget to call the parent first when you override
* this function.
*/
virtual void saveHeader(TQDataStream &str);
/**
* @return the resources for which this factory is responsible.
*/
virtual const KSycocaResourceList * resourceList() const { return m_resourceList; }
private:
int mOffset;
protected:
int m_sycocaDictOffset;
int m_beginEntryOffset;
int m_endEntryOffset;
TQDataStream *m_str;
KSycocaResourceList *m_resourceList;
KSycocaEntryDict *m_entryDict;
KSycocaDict *m_sycocaDict;
protected:
virtual void virtual_hook( int id, void* data );
};
/** This, instead of a typedef, allows to declare "class ..." in header files
* @internal
*/
class TDECORE_EXPORT KSycocaFactoryList : public TQPtrList<KSycocaFactory>
{
public:
KSycocaFactoryList() { }
};
#endif
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