rwFile.h

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/*******************************************************************************
** Copyright (c) 1999 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: rwFile.h,v $ $Revision: 1.26 $ $State: Exp $
*******************************************************************************/



#ifndef DtReaderWriterFile_H_
#define DtReaderWriterFile_H_

#include "vrfutil/rdrWritr.h"
#include "vrfutil/rwString.h"
#include <vlutil/vlFilename.h>
#include <mtl/lispEnv.h>

typedef std::map<DtlObj*, std::string> DtlObjStringMap;

class DtReaderWriterRegistry;
class DtFilename;

#include "vrfutil/vrfutilDefines.h"
class DT_DLL_vrfutil DtReaderWriterFile : public DtReaderWriter
{
public:
   DtReaderWriterFile();

   DtReaderWriterFile(const DtString& name, 
                      DtReaderWriterRegistry* parentRegistry = NULL);

   DtReaderWriterFile(const DtSymbolString& name, 
                      DtReaderWriterRegistry* parentRegistry = NULL);

   DtReaderWriterFile(const DtString& name, const DtReaderWriterFile& orig,
      DtReaderWriterRegistry* parentRegistry = NULL);

   DtReaderWriterFile(const DtSymbolString& name, const DtReaderWriterFile& orig,
      DtReaderWriterRegistry* parentRegistry = NULL);

   DtReaderWriterFile& operator=(const DtReaderWriterFile& orig);
   DtReaderWriterFile& operator=(const DtFilename& orig);

   virtual ~DtReaderWriterFile();

   DtReaderWriterFile* clone(const DtString& name, 
                             DtReaderWriterRegistry* parentRegistry = NULL);

   DtReaderWriterFile* clone(const DtSymbolString& name, 
                             DtReaderWriterRegistry* parentRegistry = NULL);

   virtual void getSelf(DtlObjPtr args, const DtFilename& searchPath,
      const DtVariableBindingsList& variableBindings);

   virtual void saveFile(const DtFilename& filename);
   virtual void loadFile(const DtFilename& searchPath,
      const DtVariableBindingsList& variableBindings, DtlObjStringMap* commentMap = NULL);

   virtual void putSelf(FILE* fp, int indentLevel, 
      bool writeUnspecified, const DtFilename& path);

   virtual void setObjectToReadAndWrite(DtReaderWriter* object);
   virtual const DtReaderWriter& objectToReadAndWrite() const;

   static const DtFilename& appPath();

   virtual void setFilename(const DtString& filename);

   virtual void setFilename(const DtString& filename, const DtString& unsubstitutedFilename);

   virtual const DtString& filename() const;

   virtual DtString unsubstitutedFilename() const;

   virtual void setUnsubstitudedFilename(const DtString& f);

   virtual const DtFilename& filenameLastReadIn() const;

   virtual void setFileReadOnly(bool readOnly = true);
   virtual bool fileReadOnly() const;

   virtual const char* readerWriterType() const;

   virtual void substitute(const DtVariableBindingsList& variableBindings);

protected:

   bool getFilenameToWrite(const DtFilename& path, const DtFilename& filename,
      DtFilename& filenameToWrite) const;

protected:
   DtRwString       myFilename;
   DtReaderWriter*  myObjectToReadAndWrite;
   bool             myFileReadOnly;
   DtFilename       myFilenameLastReadIn;
   DtString         myVariableSubstitutedFilename;
 };

#endif