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ZipOutputStream.h

Go to the documentation of this file.

#ifndef CLASSLIB_ZIP_OUTPUT_STREAM_H
# define CLASSLIB_ZIP_OUTPUT_STREAM_H

//<<<<<< INCLUDES                                                       >>>>>>

# include "classlib/zip/ZOutputStream.h"
# include <vector>
# include <string>

namespace lat {
//<<<<<< PUBLIC DEFINES                                                 >>>>>>
//<<<<<< PUBLIC CONSTANTS                                               >>>>>>
//<<<<<< PUBLIC TYPES                                                   >>>>>>

class ZipMember;
class MemoryStorage;

//<<<<<< PUBLIC VARIABLES                                               >>>>>>
//<<<<<< PUBLIC FUNCTIONS                                               >>>>>>
//<<<<<< CLASS DECLARATIONS                                             >>>>>>

// Writes a zip archive straight into an output stream.  NB: this
// buffers the member's data until the member is closed so that it can
// write the correct sizes and crc32!  Handle stored and compressed
// files!
class ZipOutputStream : public ZOutputStream
{
public:
    ZipOutputStream (OutputStream *output);
    ~ZipOutputStream (void);

    using ZOutputStream::write;

    virtual void        nextMember (ZipMember *member);
    virtual IOSize      write (const void *from, IOSize n);
    virtual void        closeMember (void);
    virtual void        finish (void);
    virtual void        close (void);

    virtual void        comment (const std::string &text);
    virtual void        method (Method m);
    virtual void        level (unsigned n);

private:
    std::string         m_comment;      //< ZIP archive comment
    Method              m_method;       //< Default compression method
    unsigned            m_level;        //< Default compression level
    IOOffset            m_total;        //< Total bytes written

    std::vector<ZipMember *> m_members; //< Members already written
    ZipMember           *m_current;     //< Current member we are writing
    MemoryStorage       *m_buffer;      //< Capture buffer
    OutputStream        *m_bufout;      //< Capture buffer or downstream
    IOOffset            m_usize;        //< Uncompressed size of current member
    bool                m_finished;     //< Flag indicating this level is finished
};

//<<<<<< INLINE PUBLIC FUNCTIONS                                        >>>>>>
//<<<<<< INLINE MEMBER FUNCTIONS                                        >>>>>>

} // namespace lat
#endif // CLASSLIB_ZIP_OUTPUT_STREAM_H

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