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tdesycoca.h

00001 /*  This file is part of the KDE libraries
00002  *  Copyright (C) 1999 Waldo Bastian <bastian@kde.org>
00003  *
00004  *  This library is free software; you can redistribute it and/or
00005  *  modify it under the terms of the GNU Library General Public
00006  *  License version 2 as published by the Free Software Foundation;
00007  *
00008  *  This library is distributed in the hope that it will be useful,
00009  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00010  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011  *  Library General Public License for more details.
00012  *
00013  *  You should have received a copy of the GNU Library General Public License
00014  *  along with this library; see the file COPYING.LIB.  If not, write to
00015  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016  *  Boston, MA 02110-1301, USA.
00017  **/
00018 
00019 #ifndef __tdesycoca_h__
00020 #define __tdesycoca_h__
00021 
00022 #include <dcopobject.h>
00023 #include <tqobject.h>
00024 #include <tqstringlist.h>
00025 #include "tdesycocatype.h"
00026 #include <tdelibs_export.h>
00027 
00028 class TQDataStream;
00029 class KSycocaPrivate;
00030 class KSycocaFactory;
00031 class KSycocaFactoryList;
00032 
00033 /*
00034  * Sycoca file version number.
00035  * If the existing file is outdated, it will not get read
00036  * but instead we'll ask kded to regenerate a new one...
00037 */
00038 #define TDESYCOCA_VERSION 94
00039 
00044 class TDECORE_EXPORT KSycoca : public TQObject, public DCOPObject
00045 {
00046   Q_OBJECT
00047   K_DCOP
00048 
00049 protected:
00054    KSycoca( bool /* buildDatabase */ );
00055 
00056 public:
00057 
00061    KSycoca();
00062 
00066    static KSycoca *self();
00067 
00068    virtual ~KSycoca();
00069 
00070    static int version();
00071 
00076    TQDataStream *findEntry(int offset, KSycocaType &type);
00080    TQDataStream *findFactory( KSycocaFactoryId id);
00084    TQString kfsstnd_prefixes();
00088    TQString language();
00089 
00096    TQ_UINT32 timeStamp();
00097 
00107    TQ_UINT32 updateSignature();
00108 
00113    TQStringList allResourceDirs();
00114 
00118    void addFactory( KSycocaFactory * );
00119 
00124    virtual bool isBuilding() { return false; }
00125 
00129    void disableAutoRebuild();
00130 
00134    static TQString determineRelativePath( const TQString & _fullpath, const char *_resource );
00135 
00141    static bool isChanged(const char *type);
00142 
00146    static void flagError();
00147 
00151    static bool readError();
00152 
00153 k_dcop:
00157    void notifyDatabaseChanged(const TQStringList &);
00158 
00159 signals:
00164    void databaseChanged();
00165 
00166 protected:
00167    bool checkVersion(bool abortOnError=true);
00168    bool openDatabase(bool openDummyIfNotFound=true);
00169    void closeDatabase();
00170    KSycocaFactoryList *m_lstFactories;
00171    TQDataStream *m_str;
00172    TQByteArray *m_barray;
00173    bool bNoDatabase;
00174    size_t m_sycoca_size;
00175    const char *m_sycoca_mmap;
00176    TQ_UINT32 m_timeStamp;
00177 
00178 public:
00179    static KSycoca *_self; // Internal use only.
00180 
00181 protected:
00182   virtual void virtual_hook( int id, void* data );
00183 private:
00184    KSycocaPrivate *d;
00185 };
00186 
00187 #endif

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