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132 lines
4.9 KiB
132 lines
4.9 KiB
/***************************************************************************
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kplainbuffer.h - description
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-------------------
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begin : Mit Jun 03 2003
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copyright : (C) 2003 by Friedrich W. H. Kossebau
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email : Friedrich.W.H@Kossebau.de
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***************************************************************************/
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/***************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License version 2 as published by the Free Software Foundation. *
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* *
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***************************************************************************/
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#ifndef KHE_KPLAINBUFFER_H
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#define KHE_KPLAINBUFFER_H
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#include "kdatabuffer.h"
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namespace KHE
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{
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/*
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class KPlainBufferIterator : public KDataBufferIterator
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{
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}
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*/
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/** base class for all Data buffers that are used to display
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* TODO: think about a way to inform KHexEdit that there has been
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* a change in the buffer outside. what kind of changes are possible?
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*@author Friedrich W. H. Kossebau
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*/
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class KPlainBuffer : public KDataBuffer
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{
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friend class KPlainBufferIterator;
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public:
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KPlainBuffer( char *D, unsigned int S, int RS = -1, bool KM = true );
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KPlainBuffer( const char *D, unsigned int S );
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KPlainBuffer( int S=0, int MS = -1 );
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virtual ~KPlainBuffer();
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public: // KDataBuffer API
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virtual bool prepareRange( KSection Range ) const;
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//virtual KDataBufferIterator *iterator() const;
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virtual const char *dataSet( KSection S ) const;
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virtual char datum( unsigned int Offset ) const;
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virtual int size() const;
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virtual bool isReadOnly() const;
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virtual bool isModified() const;
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virtual int insert( int Pos, const char*, int Length );
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virtual int remove( KSection Remove );
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virtual unsigned int replace( KSection Remove, const char*, unsigned int InputLength );
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virtual int move( int DestPos, KSection SourceSection );
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virtual int fill( const char FillChar, int Length = -1, unsigned int Pos = 0 );
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virtual void setDatum( unsigned int Offset, const char Char );
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virtual void setModified( bool M = true );
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//virtual int find( const char*, int Length, int Pos = 0 ) const;
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virtual int find( const char*KeyData, int Length, KSection Section ) const;
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virtual int rfind( const char*, int Length, int Pos = -1 ) const;
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/* virtual int find( const TQString &expr, bool cs, bool wo, bool forward = true, int *index = 0 ); */
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public:
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void setReadOnly( bool RO = true );
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void setMaxSize( int MS );
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/** sets whether the memory given by setData or in the constructor should be kept on resize
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*/
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void setKeepsMemory( bool KM = true );
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public:
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char *data() const;
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int maxSize() const;
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/** returns whether the memory of the byte array is kept */
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bool keepsMemory() const;
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protected:
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/** resizes the buffer, if possible, saving the data and splitting the data, if demanded
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* @param AddSize additional size the buffer should grow
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* @param SplitPos if -1 does not split
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* @param SaveUpperPart true if upper part should be copied into new buffer
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* @return additional size the buffer has grown
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*/
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int addSize( int AddSize, int SplitPos = -1, bool SaveUpperPart = true );
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protected:
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/** */
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char *Data;
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/** size of the data */
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unsigned int Size;
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/** Size of data array */
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unsigned int RawSize;
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/** maximal size of array, unlimited if -1 */
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int MaxSize;
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/** flag whether the initially given memory should be kept */
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bool KeepsMemory:1;
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/** */
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bool ReadOnly:1;
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/** */
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bool Modified:1;
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};
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inline bool KPlainBuffer::prepareRange( KSection ) const { return true; }
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inline const char *KPlainBuffer::dataSet( KSection S ) const { return &Data[S.start()]; }
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inline char KPlainBuffer::datum( unsigned int Offset ) const { return Data[Offset]; }
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inline int KPlainBuffer::size() const { return Size; }
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inline bool KPlainBuffer::isReadOnly() const { return ReadOnly; }
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inline bool KPlainBuffer::isModified() const { return Modified; }
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inline void KPlainBuffer::setDatum( unsigned int Offset, const char Char )
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{ Data[Offset] = Char; Modified = true; }
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inline void KPlainBuffer::setReadOnly( bool RO ) { ReadOnly = RO; }
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inline void KPlainBuffer::setModified( bool M ) { Modified = M; }
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inline void KPlainBuffer::setMaxSize( int MS ) { MaxSize = MS; }
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inline void KPlainBuffer::setKeepsMemory( bool KM ) { KeepsMemory = KM; }
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inline char *KPlainBuffer::data() const { return Data; }
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inline int KPlainBuffer::maxSize() const { return MaxSize; }
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inline bool KPlainBuffer::keepsMemory() const { return KeepsMemory; }
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}
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#endif
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