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#ifndef __STREAMS_JAR_H_
#define __STREAMS_JAR_H_
#include "streams-zlib.h"
namespace Inkscape {
//#define DEBUG_STREAMS 1;
class JarHeaderException
{
public:
const char *what() const throw() { return "Invalid file header in jar"; }
};
/**
* JarBuffer
*/
class JarBuffer : public ZlibBuffer
{
public:
JarBuffer(URIHandle& urih) //throws JarHeaderException
: ZlibBuffer(urih), compressed_size(0), compressed_left(0), method(0),
flags(0)
{ consume_header(); }
virtual ~JarBuffer() {}
protected:
virtual void consume_header() throw(JarHeaderException);
virtual void check_signature(guint8 *data) throw(JarHeaderException);
virtual unsigned int get_compressed_size() const { return compressed_size; }
virtual unsigned int get_compressed_left() const { return compressed_left; }
virtual GByteArray *inflate(guint8 *data, int nbytes);
virtual int consume_and_inflate();
virtual void reset();
virtual bool is_compressed() const { return (method == 8 || flags & 0x0008);}
virtual int consume_compressed(int nbytes);
virtual int consume_uncompressed(int nbytes);
guint32 unpack_4bytes(guint8 *data, const int offset);
guint16 unpack_2bytes(guint8 *data, const int offset);
private:
JarBuffer& operator=(JarBuffer const& rhs);
JarBuffer(JarBuffer const& rhs);
guint32 compressed_size;
guint32 compressed_left;
guint16 method;
guint16 flags;
guint16 eflen;
};
} // namespace Inkscape
#endif // header guard
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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