// $Id: cxftfile.h 1679 2006-08-08 09:47:27Z gerry $ // Header for the CXaraTemplateFile class /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ #ifndef INC_CXFTFILE #define INC_CXFTFILE #include "cxfile.h" /******************************************************************************************** > class CXaraTemplateFile : public CXaraFile Author: Gerry_Iles (Xara Group Ltd) Created: 09/7/97 Purpose: CXaraFile derived class for handling Flare template files This translates the records written by the standard native format export into the text based format. It achieves this by overriding certain functions to maintain a "type list" of the contents of the record so it can translate it when the record is written to the file. Streamed records also need to be translated and this is achieved by returning a proxy CCFile derived class (CCBinHexFile) which translates all data written from binary to the BinHex format (a stream of hexadecimal digits where each pair of digits represents a byte e.g. void Translate(const BYTE* pBuf, char* pStr); { for (i = 0; i < BUFSIZE; i++) { sprintf(pStr, "%02x", pBuf[i]); pStr += 2; } } (Not that it'll actually use that code, rampant as it is... 8-) SeeAlso: CCBinHexFile ********************************************************************************************/ class CXaraTemplateFile : public CXaraFile { // Give my name in memory dumps CC_DECLARE_DYNAMIC(CXaraTemplateFile); public: CXaraTemplateFile(); virtual ~CXaraTemplateFile() { /* empty */ } virtual BOOL OpenToWrite(CCLexFile* pCCFile); virtual BOOL OpenToRead(CCLexFile* pThisCCFile); virtual BOOL Close(void); // This is overriden to return our special CCBinHexFile virtual CCLexFile* GetCCFile(void) const; virtual INT32 StartRecord(UINT32 Tag, INT32 Size); virtual BOOL EndRecord(void); virtual INT32 StartStreamedRecord(UINT32 Tag, INT32 Size); virtual BOOL EndStreamedRecord(UINT32 *RecordSize); virtual UINT32 Write(CXaraFileRecord* pRecord); // Writes a complete record out to file virtual UINT32 WriteDefinitionRecord(CXaraFileRecord* pRecord); // Writes a complete record out to file virtual BOOL Write(BYTE b); virtual BOOL StartCompression() { return(TRUE); }; virtual BOOL StopCompression() { return(TRUE); }; virtual BOOL IsCompressionOn() { return(FALSE); }; protected: // Should only be used by people who know what they are doing e.g. compression // Hence why it is protected UINT32 WriteRecordHeader(UINT32 Tag, INT32 Size); virtual BOOL FixStreamedRecordHeader(UINT32 *RecordSize); protected: // Functions for translating binary into text BOOL WriteAsText(CXaraFileRecord* pRecord); BOOL WriteBinHex(BYTE* pBuf, UINT32 BufSize); BOOL WriteLabel(void); BOOL IsSimpleUnicode(UINT16* pStr); BOOL WriteSimpleUnicode(UINT16* pStr); BOOL WriteSimpleASCII(char* pStr); UINT32 WriteMultipleWCHARs(BYTE* pTypes, DWORD Count, UINT16* pChars); BOOL WriteSingleWCHAR(WCHAR ch); inline BOOL IsPrint(WCHAR wc) { return(((wc) > 31) && ((wc) < 127)); }; protected: PathName m_TempPath; CCDiskFile* m_pTempFile; CCLexFile* m_pBinHexFile; CCLexFile* m_pOrigCCFile; }; #endif // INC_CXFTFILE