Es++ Class: JPGFile

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Source code

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 *  JPGFile.h
 *
 *****************************************************************************/


#pragma once

#include <es++/Object.h>
#include <es++/Exception.h>
#include <jpeglib.h>

namespace Es {

class JPGFile :public Object {
protected:
  typedef enum {
    READER = 0,
    WRITER = 1,
  } OPERATION;

private:
  FILE* fp;
  OPERATION operation;

private:
  JPGFile()
  {
  }

protected:
  JPGFile(OPERATION operation,const char* filename)
  :fp(NULL),
  operation(operation)
  {
    if (filename == NULL) {
      throw Es::IException("Invalid argument");
    }
    static const char* mode[] =  { "rb", "wb" };

    fp = fopen(filename, mode[operation]);
    if (fp == NULL) {
      throw Es::IException("Failed to open %s", filename);
    }
  }

  ~JPGFile()
  {
      close();
  }

  FILE* getFP()
  {
    return fp;
  }
    
  void close()
  {
    if (fp) {
     fclose(fp);
     fp = NULL;
    }
  }
    
};

}
 

Last modified: 27 July 2017

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