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inputsource_memory.h

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/*
        $Id: inputsource_memory.h,v 1.3 2001/03/04 17:54:47 mbn Exp $

        ------------------------------------------------------------------------
        ClanLib, the platform independent game SDK.

        This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
        version 2. See COPYING for details.

        For a total list of contributers see CREDITS.

        ------------------------------------------------------------------------
*/


#ifndef header_inputsource_memory
#define header_inputsource_memory

#include "inputsource.h"

class CL_InputSource_Memory : public CL_InputSource
//: Interface to read data from a memory source.
// CL_InputSource_Memory is used to read data from a memory source.
{
public:
        CL_InputSource_Memory(std::string data);
        virtual ~CL_InputSource_Memory();

        virtual void set_system_mode();
        //: Changes input data endianess to the local systems mode.

        virtual void set_big_endian_mode();
        //: Changes input data endianess to big endian mode.

        virtual void set_little_endian_mode();
        //: Changes input data endianess to little endian mode. This is the 
        //: default setting.

        virtual int read_int32();
        //: Reads a signed 32 bit integer from input source.

        virtual unsigned int read_uint32();
        //: Reads a unsigned 32 bit integer from input source.

        virtual short read_short16();
        //: Reads a signed 16 bit integer (short) from input source.

        virtual unsigned short read_ushort16();
        //: Reads a unsigned 16 bit integer (short) from input source.

        virtual char read_char8();
        //: Reads a signed 8 bit integer (char) from input source.

        virtual unsigned char read_uchar8();
        //: Reads a unsigned 8 bit integer (char) from input source.

        virtual float read_float32();
        //: Reads an ieee format floating point from input source.

        virtual bool read_bool();
        //: Reads a bool from input source.

        virtual int read(void *data, int size);
        //: Reads larger amounts of data (no endian and 64 bit conversion).
        
        virtual void open();
        //: Opens the input source. By default, it is open.
        
        virtual void close();
        //: Closes the input source.

        virtual CL_InputSource *clone() const;
        //: Make a copy of the current InputSource, standing at the same position.

        virtual int tell() const;
        //: Returns current position in input source.

        virtual void seek(int pos, SeekEnum seek_type);
        //: Seeks to the specified position in the input source.

        virtual int size() const;
        //: Returns the size of the input source

        virtual std::string read_string();
        // Reads a clanstring (int32 len, char[len] str) string from the source.

        virtual void push_position();
        //: Pushes the current input source position. The position can be restored again with pop_position.
        
        virtual void pop_position();
        //: Pops a previous pushed input source position (returns to the position).
        
        std::string get_data() { return m_data; }
        // Returns the data source.

private:
        std::string m_data;
        unsigned int m_pos;
        bool m_delete_data;
};

#endif

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