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/***************************************************************************
kfixedsizebuffer.h - description
-------------------
begin : Mit Jun 03 2003
copyright : (C) 2003 by Friedrich W. H. Kossebau
email : Friedrich.W.H@Kossebau.de
***************************************************************************/
/***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
***************************************************************************/
#ifndef KHE_KFIXEDSIZEBUFFER_H
#define KHE_KFIXEDSIZEBUFFER_H
#include "kdatabuffer.h"
namespace KHE
{
/** base class for all Data buffers that are used to display
* TODO: think about a way to inform KHexEdit that there has been
* a change in the buffer outside. what kind of changes are possible?
*@author Friedrich W. H. Kossebau
*/
class KFixedSizeBuffer : public KDataBuffer
{
public:
/** creates a readonly buffer around the given data */
KFixedSizeBuffer( char *D, unsigned int S, char FUC = '\0' );
/** creates a writeable buffer which is deleted at the end */
KFixedSizeBuffer( unsigned int S, char FUC = '\0' );
virtual ~KFixedSizeBuffer();
public: // KDataBuffer API
virtual bool prepareRange( KSection Range ) const;
virtual const char *dataSet( KSection S ) const;
virtual char datum( unsigned int Offset ) const;
virtual int size() const;
virtual bool isReadOnly() const;
virtual bool isModified() const;
virtual int insert( int Pos, const char*, int Length );
virtual int remove( KSection Remove );
virtual unsigned int replace( KSection Remove, const char*, unsigned int InputLength );
virtual int move( int DestPos, KSection SourceSection );
virtual int fill( const char FillChar, int Length = -1, unsigned int Pos = 0 );
virtual void setDatum( unsigned int Offset, const char Char );
virtual void setModified( bool M = true );
virtual int find( const char*KeyData, int Length, KSection Section ) const;
virtual int rfind( const char*, int Length, int Pos = -1 ) const;
/* virtual int find( const QString &expr, bool cs, bool wo, bool forward = true, int *index = 0 ); */
public:
void setReadOnly( bool RO = true );
int compare( const KDataBuffer &Other, KSection Range, unsigned int Pos = 0 );
int compare( const KDataBuffer &Other, int OtherPos, int Length, unsigned int Pos = 0 );
int compare( const KDataBuffer &Other );
public:
char *rawData() const;
protected:
void reset( unsigned int Pos, unsigned int Length );
protected:
/** */
char *Data;
/***/
unsigned int Size;
/** */
char FillUpChar;
/** */
bool ReadOnly:1;
/** */
bool Modified:1;
/** */
bool AutoDelete:1;
};
inline bool KFixedSizeBuffer::prepareRange( KSection ) const { return true; }
inline const char *KFixedSizeBuffer::dataSet( KSection S ) const { return &Data[S.start()]; }
inline char KFixedSizeBuffer::datum( unsigned int Offset ) const { return Data[Offset]; }
inline int KFixedSizeBuffer::size() const { return Size; }
inline void KFixedSizeBuffer::setDatum( unsigned int Offset, const char Char )
{ Data[Offset] = Char; Modified = true; }
inline bool KFixedSizeBuffer::isReadOnly() const { return ReadOnly; }
inline bool KFixedSizeBuffer::isModified() const { return Modified; }
inline void KFixedSizeBuffer::setReadOnly( bool RO ) { ReadOnly = RO; }
inline void KFixedSizeBuffer::setModified( bool M ) { Modified = M; }
inline int KFixedSizeBuffer::compare( const KDataBuffer &Other )
{ return compare( Other, KSection(0,Other.size()-1),0 ); }
inline int KFixedSizeBuffer::compare( const KDataBuffer &Other, int OtherPos, int Length, unsigned int Pos )
{ return compare( Other, KSection(OtherPos,Length,true),Pos ); }
inline char *KFixedSizeBuffer::rawData() const { return Data; }
}
#endif
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