// ===================================================================
// Class: CUGCBArrayDataSource
// File: UGCBADSC.h
// Created: September 19, 1998
// Revised:
// Purpose: Example of simple CByteArray dump datasource
// Shows how a simple datasource can
// reduce memory overhead by working directly
// from data in memory
// ===================================================================
// This software along with its related components, documentation and files ("The Libraries")
// is � 1994-2007 The Code Project (1612916 Ontario Limited) and use of The Libraries is
// governed by a software license agreement ("Agreement"). Copies of the Agreement are
// available at The Code Project (www.codeproject.com), as part of the package you downloaded
// to obtain this file, or directly from our office. For a copy of the license governing
// this software, you may contact us at legalaffairs@codeproject.com, or by calling 416-849-8900.
// ===================================================================
#ifndef _UGCBADSC_H_
#define _UGCBADSC_H_
#include "ugctrl.h"
// we can control the number of bytes dumped in a cell
#define UGCBA_OPT_BLOCKSIZE 99
// ... and whether we want decimal or hex or...
#define UGCBA_OPT_RADIX 98
// ... and what to display for non-printing ascii chars
#define UGCBA_OPT_REPCHAR 97
// radi supported
#define UGCBA_RADIX_HEX 1
#define UGCBA_RADIX_DECIMAL 2
class CUGCBArrayDataSource : public CUGDataSource {
private:
// private member declarations
protected:
// protected member declarations
int m_nBlockSize; // how many bytes to format in a cell
int m_extra; // leftover bytes for last row...
int m_radix; // hex or what...
CString m_strTemp; // for formatting block (cell) data
char m_cNonPrintable; // can change from the traditional '.'
long m_lastRow; // set in GetNumRows;
public:
// public member declarations
CByteArray *m_byteArray; // array in question - possibly
// the result of loading a file
// in serialize...
CUGCBArrayDataSource();
virtual ~CUGCBArrayDataSource();
CUGCBArrayDataSource(const CUGCBArrayDataSource& );
CUGCBArrayDataSource operator=(const CUGCBArrayDataSource&);
/////////////////////////////////////////////////////////////////////
// CUGDataSource overrides - this is a read-only datasource, so only
// a few basics needed...
virtual long GetNumRows();
virtual int GetNumCols();
virtual int GetCell(int col,long row,CUGCell *cell);
virtual int FindNext(CString *string,int *col,long *row,int flags);
//options
virtual int SetOption(int option,long param1,long param2);
virtual int GetOption(int option,long& param1,long& param2);
// new for dumper app
void FormatHexString(long row);
void FormatDecimalString(long row);
void FormatAsciiString(long row);
};
bool operator==(const CUGCBArrayDataSource&, const CUGCBArrayDataSource&);
bool operator!=(const CUGCBArrayDataSource&, const CUGCBArrayDataSource&);
#endif
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