FlexFile.h

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/*
Copyright (C) 2005 The Pentagram team

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.

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 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.
*/

#ifndef FLEXFILE_H
#define FLEXFILE_H

#include "ArchiveFile.h"
class IDataSource;

class FlexFile : public ArchiveFile {
public:
        ENABLE_RUNTIME_CLASSTYPE();

        explicit FlexFile(IDataSource* ds);
        virtual ~FlexFile();

        virtual bool exists(uint32 index) { return getSize(index) > 0; }
        virtual bool exists(const std::string& name) {
                uint32 index;
                if (nameToIndex(name, index))
                        return exists(index);
                else
                        return false;
        }

        virtual uint8* getObject(uint32 index, uint32* size=0);
        virtual uint8* getObject(const std::string& name, uint32* size=0) {
                uint32 index;
                if (nameToIndex(name, index))
                        return getObject(index, size);
                else
                        return 0;
        }
        

        virtual uint32 getSize(uint32 index);
        virtual uint32 getSize(const std::string& name) {
                uint32 index;
                if (nameToIndex(name, index))
                        return getSize(index);
                else
                        return 0;
        }

        virtual uint32 getCount() { return count; }

        virtual uint32 getIndexCount() { return count; }

        virtual bool isIndexed() const { return true; }
        virtual bool isNamed() const { return false; }

        static bool isFlexFile(IDataSource* ds);

protected:
        bool nameToIndex(const std::string& name, uint32& index);

        IDataSource* ds;
        uint32 count;

private:
        uint32 getOffset(uint32 index);
};


#endif

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