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|
/*
/--------------------------------------------------------------------
|
| $Id: pldatasink.cpp,v 1.7 2004/11/09 15:55:06 artcom Exp $
| Data Destination Base Class
|
| This is a base class for a destination of picture data.
| It defines methods to open, write to, and close data sources.
|
| Copyright (c) 1996-2002 Ulrich von Zadow
|
\--------------------------------------------------------------------
*/
#include "pldatasink.h"
#include "pldebug.h"
#include <string.h>
PLDataSink::PLDataSink()
: PLObject(),
m_pStartData(NULL),
m_nCurPos(0),
m_pszName(NULL),
#ifdef _WIN32
m_pszwName(NULL),
m_bNameIsWide(false),
#endif
m_nMaxFileSize(0)
{
}
PLDataSink::~PLDataSink
()
{
if (m_pStartData)
Close();
}
// the actual data buffer is allocated in the derived classes
void PLDataSink::Open
( const char * pszName,
PLBYTE* pData,
size_t MaxFileSize
)
{
// Data source may not be open already!
PLASSERT (! m_pStartData);
PLASSERT (MaxFileSize > 0);
m_nMaxFileSize = MaxFileSize;
// unchecked memory allocation, here!
m_pszName = new char [strlen (pszName)+1];
strcpy (m_pszName, pszName);
m_pStartData = pData;
m_nCurPos = 0;
#ifdef _WIN32
m_bNameIsWide = false;
#endif
}
#ifdef _WIN32
void PLDataSink::OpenW
( const wchar_t * pszwName,
PLBYTE* pData,
size_t MaxFileSize
)
{
// Data source may not be open already!
PLASSERT (! m_pStartData);
PLASSERT (MaxFileSize > 0);
m_nMaxFileSize = MaxFileSize;
// unchecked memory allocation, here!
m_pszwName = new wchar_t [wcslen (pszwName)+1];
m_pszName = new char[strlen("Wide")+1];
strcpy(m_pszName,"Wide");
wcscpy (m_pszwName, pszwName);
m_pStartData = pData;
m_nCurPos = 0;
m_bNameIsWide = true;
}
#endif
void PLDataSink::Close
()
{
if (m_pszName)
{ delete [] m_pszName; m_pszName = NULL; }
#ifdef _WIN32
delete[] m_pszwName;
m_pszwName = NULL;
m_bNameIsWide = false;
#endif
m_pStartData = NULL;
m_nCurPos = 0;
}
char * PLDataSink::GetName
()
{
return m_pszName;
}
#ifdef _WIN32
wchar_t * PLDataSink::GetNameW
()
{
return m_pszwName;
}
#endif
size_t PLDataSink::WriteNBytes
( size_t n,
PLBYTE* pData
)
{
if (m_nCurPos+n > m_nMaxFileSize)
throw PLTextException (PL_ERREND_OF_FILE,
"Buffer overflow while encoding.\n");
memcpy(m_pStartData + m_nCurPos, pData, n);
m_nCurPos += n;
return n;
}
void PLDataSink::WriteByte
( PLBYTE Data
)
{
*(m_pStartData + m_nCurPos) = Data;
m_nCurPos ++;
}
/*
/--------------------------------------------------------------------
|
| $Log: pldatasink.cpp,v $
| Revision 1.7 2004/11/09 15:55:06 artcom
| changed #ifdef _WINDOWS to #ifdef _WIN32 (since this is a macro that actually is predefined on win32 platforms)
|
| Revision 1.6 2004/09/11 12:41:35 uzadow
| removed plstdpch.h
|
| Revision 1.5 2003/08/03 12:03:20 uzadow
| Added unicode support; fixed some header includes.
|
| Revision 1.4 2002/02/24 13:00:19 uzadow
| Documentation update; removed buggy PLFilterRotate.
|
| Revision 1.3 2001/10/06 22:03:26 uzadow
| Added PL prefix to basic data types.
|
| Revision 1.2 2001/10/06 20:44:45 uzadow
| Linux compatibility
|
| Revision 1.1 2001/09/16 19:03:22 uzadow
| Added global name prefix PL, changed most filenames.
|
| Revision 1.8 2001/02/04 14:31:52 uzadow
| Member initialization list cleanup (Erik Hoffmann).
|
| Revision 1.7 2001/01/21 14:28:21 uzadow
| Changed array cleanup from delete to delete[].
|
| Revision 1.6 2000/12/20 19:17:46 uzadow
| FileSink::Close() now calls the base class Close() so
| the file sink can be reopened.
|
| Revision 1.5 2000/01/16 20:43:13 anonymous
| Removed MFC dependencies
|
| Revision 1.4 1999/10/19 21:23:23 Ulrich von Zadow
| Martin Skinner: Added WriteNBytes()
|
| Revision 1.3 1999/10/03 18:50:51 Ulrich von Zadow
| Added automatic logging of changes.
|
|
--------------------------------------------------------------------
*/
|
