CompressionRecordHandler Class Reference

Provide a compression record handler for the new native and web file formats. This asks the ZLib code within side the CCFile class to turn compression on or off. More...

#include <rechcomp.h>

Inheritance diagram for CompressionRecordHandler:

List of all members.

Public Member Functions
	CompressionRecordHandler ()
	~CompressionRecordHandler ()
virtual UINT32 *	GetTagList ()
	Provides the record handler system with a list of records handled by this handler.
virtual BOOL	HandleRecord (CXaraFileRecord *pCXaraFileRecord)
	Handles the given record.
virtual BOOL	HandleStreamedRecord (CXaraFile *pCXFile, UINT32 Tag, UINT32 Size, UINT32 RecordNumber)
	This is the streamed record handler. It is used when.
virtual BOOL	IsStreamed (UINT32 Tag)
	Function to find out if the record is streamed or not.
virtual void	IncProgressBarCount (UINT32 n)
Private Member Functions
	CC_DECLARE_DYNAMIC (CompressionRecordHandler)

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Detailed Description

Provide a compression record handler for the new native and web file formats. This asks the ZLib code within side the CCFile class to turn compression on or off.

Author:

Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>

Date:

6/6/96

See also:

Definition at line 122 of file rechcomp.h.

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Constructor & Destructor Documentation

CompressionRecordHandler::CompressionRecordHandler (   )  [inline]

Definition at line 128 of file rechcomp.h. : CamelotRecordHandler() {}

CompressionRecordHandler::~CompressionRecordHandler (   )  [inline]

Definition at line 129 of file rechcomp.h. {}

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Member Function Documentation

CompressionRecordHandler::CC_DECLARE_DYNAMIC (  CompressionRecordHandler   )  [private]

UINT32 * CompressionRecordHandler::GetTagList (   )  [virtual]

Provides the record handler system with a list of records handled by this handler. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 6/6/96 Parameters: -  [INPUTS] Returns: Ptr to a list of tag values, terminated by CXFRH_TAG_LIST_END See also: - Implements CXaraFileRecordHandler. Definition at line 137 of file rechcomp.cpp. { static UINT32 TagList[] = {TAG_STARTCOMPRESSION, TAG_ENDCOMPRESSION, CXFRH_TAG_LIST_END}; return (UINT32*)&TagList; }

BOOL CompressionRecordHandler::HandleRecord (  CXaraFileRecord *  pCXaraFileRecord  )  [virtual]

Handles the given record. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 6/6/96 Parameters: pCXaraFileRecord  = ptr to record to handle [INPUTS] Returns: TRUE if handled successfuly FALSE otherwise See also: - Implements CXaraFileRecordHandler. Definition at line 158 of file rechcomp.cpp. { ERROR2IF(pCXaraFileRecord == NULL,FALSE,"CompressionRecordHandler::HandleRecord pCXaraFileRecord is NULL"); // This should be unused and we should error if this is called ERROR2(FALSE,"CompressionRecordHandler::HandleRecord called! Use Streamed form instead"); BOOL ok = TRUE; switch (pCXaraFileRecord->GetTag()) { case TAG_STARTCOMPRESSION: // Ask the compression system to be turned on TRACEUSER( "Neville", _T("Turn compression on\n")); ok = SetCompression(TRUE); break; case TAG_ENDCOMPRESSION: // Ask the compression system to be turned off TRACEUSER( "Neville", _T("Turn compression on\n")); ok = SetCompression(FALSE); break; default: ok = FALSE; ERROR3_PF(("CompressionRecordHandler::HandleRecord I don't handle records with the tag (%d)\n",pCXaraFileRecord->GetTag())); break; } return ok; }

BOOL CompressionRecordHandler::HandleStreamedRecord (  CXaraFile *  pCXFile, UINT32  Tag, UINT32  Size, UINT32  RecordNumber )  [virtual]

This is the streamed record handler. It is used when. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 7/6/96 Parameters: pCXFile  = access to the CXaraFile class [INPUTS] Tag = the tag value Size = size of record RecordNumber = the record number in the file Returns: TRUE if handled ok FALSE otherwise Errors: - See also: - Reimplemented from CXaraFileRecordHandler. Definition at line 207 of file rechcomp.cpp. { ERROR2IF(Tag <= 0,FALSE,"CompressionRecordHandler::HandleStreamedRecord Tag is negative!"); BOOL ok = TRUE; switch (Tag) { case TAG_STARTCOMPRESSION: // Ask the compression system to be turned on TRACEUSER( "Neville", _T("Turn compression on\n")); ok = SetCompression(TRUE); break; case TAG_ENDCOMPRESSION: // Ask the compression system to be turned off TRACEUSER( "Neville", _T("Turn compression off\n")); ok = SetCompression(FALSE); break; default: ok = FALSE; ERROR3_PF(("CompressionRecordHandler::HandleStreamedRecord I don't handle records with the tag (%d)\n",Tag)); break; } return ok; }

virtual void CompressionRecordHandler::IncProgressBarCount (  UINT32  n  )  [inline, virtual]

Reimplemented from CamelotRecordHandler. Definition at line 139 of file rechcomp.h. {};

BOOL CompressionRecordHandler::IsStreamed (  UINT32  Tag  )  [virtual]

Function to find out if the record is streamed or not. Author: Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> Date: 7/6/96 Parameters: The  tag of the record [INPUTS] Returns: TRUE if this is a streamed record FALSE otherwise Errors: - See also: - Reimplemented from CamelotRecordHandler. Definition at line 251 of file rechcomp.cpp. { // We don't want these records read in or handled by any outsiders as the ZLib code // reads things like the CRC and uncompressed size itself when compression is stopped return TRUE; }

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The documentation for this class was generated from the following files:

• Kernel/rechcomp.h (r1785/r1688)
• Kernel/rechcomp.cpp (r1785/r1688)

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