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#ifndef __ppm_expander_h
#define __ppm_expander_h
#include "CExpander.h"
#include <sys/stat.h>
#include "utypes.h"
#include "ppm.h"
class PPM_ReadBuf;
#define SYM_EOF 256
class ppm_expander : public CExpander {
UCHAR *buf_in,*buf_out;
unsigned int bufsize;
unsigned int outbytes;
unsigned long blocksize;
unsigned short numblocks;
unsigned short curblock;
unsigned short maxnode;
bool needppmend;
int home();
FILE* my_file_in;
PPM_ReadBuf* my_read_buf;
ppm_worker ppm;
public:
QString about() { return QString("ppms Codec (c) Tim Wentford\nCompression code (c) Fabrice Bellard"); }
#ifdef USEQPE
void suspend()
{
CExpander::suspend(my_file_in);
}
void unsuspend()
{
CExpander::unsuspend(my_file_in);
}
#else
void suspend() {}
void unsuspend() {}
#endif
ppm_expander() : needppmend(false), my_file_in(NULL), my_read_buf(NULL)
{
bufsize = 1024;
buf_in = new UCHAR[bufsize];
buf_out = new UCHAR[bufsize];
outbytes = 0;
}
int OpenFile(const char* infile);
int getch();
void locate(unsigned short block, unsigned int n);
virtual ~ppm_expander();
unsigned int locate() { return outbytes; }
void locate(unsigned int n);
bool hasrandomaccess() { return (numblocks > 1); }
void sizes(unsigned long& file, unsigned long& text);
MarkupType PreferredMarkup()
{
return cTEXT;
}
};
#endif
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