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#ifndef __kfilterbase__h
00020
#define __kfilterbase__h
00021
00022
#include <qobject.h>
00023
#include <qstring.h>
00024
00025
#include <kdelibs_export.h>
00026
00027
#ifdef Q_WS_WIN
00028
#undef ERROR //avoid conflicts
00029
#endif
00030
00031
class QIODevice;
00032
00038 class KIO_EXPORT KFilterBase :
public QObject
00039 {
00040 Q_OBJECT
00041
public:
00042 KFilterBase();
00043
virtual ~KFilterBase();
00044
00050
void setDevice(
QIODevice * dev,
bool autodelete =
false );
00051
00052
00053
00058 QIODevice * device() {
return m_dev; }
00060
virtual void init(
int mode ) = 0;
00062
virtual int mode() const = 0;
00064 virtual
void terminate() {}
00066
virtual void reset() {}
00068
virtual bool readHeader() = 0;
00070
virtual bool writeHeader(
const QCString & filename ) = 0;
00072
virtual void setOutBuffer(
char * data, uint maxlen ) = 0;
00074
virtual void setInBuffer(
const char * data, uint size ) = 0;
00076
virtual bool inBufferEmpty()
const {
return inBufferAvailable() == 0; }
00078
virtual int inBufferAvailable() const = 0;
00080 virtual
bool outBufferFull()
const {
return outBufferAvailable() == 0; }
00082
virtual int outBufferAvailable() const = 0;
00083
00085 enum Result { OK, END, ERROR };
00087
virtual Result uncompress() = 0;
00089
virtual Result compress(
bool finish ) = 0;
00090
00097
static KFilterBase * findFilterByFileName(
const QString & fileName );
00098
00105
static KFilterBase * findFilterByMimeType(
const QString & mimeType );
00106
00107
protected:
00108
QIODevice * m_dev;
00109
bool m_bAutoDel;
00110
protected:
00111
virtual void virtual_hook(
int id,
void* data );
00112
private:
00113
class KFilterBasePrivate;
00114 };
00115
00116
#endif