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#ifndef __kfilterbase__h
00020
#define __kfilterbase__h
00021
00022
#include <qobject.h>
00023
#include <qstring.h>
00024
class QIODevice;
00025
00031 class KFilterBase :
public QObject
00032 {
00033 Q_OBJECT
00034
public:
00035
KFilterBase();
00036
virtual ~
KFilterBase();
00037
00043
void setDevice(
QIODevice * dev,
bool autodelete =
false );
00044
00045
00046
00051 QIODevice *
device() {
return m_dev; }
00053
virtual void init(
int mode ) = 0;
00055
virtual int mode() const = 0;
00057 virtual
void terminate() {}
00059
virtual void reset() {}
00061
virtual bool readHeader() = 0;
00063
virtual bool writeHeader(
const QCString & filename ) = 0;
00065
virtual void setOutBuffer(
char * data, uint maxlen ) = 0;
00067
virtual void setInBuffer(
const char * data, uint size ) = 0;
00069
virtual bool inBufferEmpty()
const {
return inBufferAvailable() == 0; }
00071
virtual int inBufferAvailable() const = 0;
00073 virtual
bool outBufferFull()
const {
return outBufferAvailable() == 0; }
00075
virtual int outBufferAvailable() const = 0;
00076
00078 enum Result { OK, END, ERROR };
00080
virtual Result uncompress() = 0;
00082
virtual Result compress(
bool finish ) = 0;
00083
00090
static KFilterBase *
findFilterByFileName(
const QString & fileName );
00091
00098
static KFilterBase *
findFilterByMimeType(
const QString & mimeType );
00099
00100
protected:
00101
QIODevice * m_dev;
00102
bool m_bAutoDel;
00103
protected:
00104
virtual void virtual_hook(
int id,
void* data );
00105
private:
00106
class KFilterBasePrivate;
00107 };
00108
00109
#endif