FileIO.cpp

/**********************************************************************

  Audacity: A Digital Audio Editor
  
  FileIO.cpp
 
  Leland Lucius

**********************************************************************/

#include "Audacity.h"

#include <wx/defs.h>
#include <wx/filename.h>
#include <wx/wfstream.h>

#include "FileIO.h"

FileIO::FileIO(const wxString name, FileIOMode mode)
: mName(name),
  mMode(mode),
  mInputStream(NULL),
  mOutputStream(NULL),
  mOpen(false)
{
   wxString scheme;

      if (mMode == FileIO::Input) {
         mInputStream = new wxFFileInputStream(mName);
         if (mInputStream == NULL) {
            wxPrintf(wxT("Couldn't get input stream: %s\n"), name.c_str());
            return;
         }
      }
      else {
         mOutputStream = new wxFFileOutputStream(mName);
         if (mOutputStream == NULL) {
            wxPrintf(wxT("Couldn't get output stream: %s\n"), name.c_str());
            return;
         }
      }

      mOpen = true;
}

FileIO::~FileIO()
{
   Close();
}

bool FileIO::IsOpened()
{
   return mOpen;
}

void FileIO::Close()
{
   if (mOutputStream) {
      delete mOutputStream;
      mOutputStream = NULL;
   }

   if (mInputStream) {
      delete mInputStream;
      mInputStream = NULL;
   }

   SetCatalogInfo();

   mOpen = false;
}

// MacOS: set the file type/creator so that the OS knows it's an MP3
// file which was created by Audacity
      
void FileIO::SetCatalogInfo()
{
#ifdef __WXMAC__
   if (!mOpen ) {
      return;
   }

   wxUint32 type;
   wxFileName fn(mName);
   wxString ext = fn.GetExt().MakeUpper() + wxT("    ");

   type = (ext[0] & 0xff) << 24 |
          (ext[1] & 0xff) << 16 |
          (ext[2] & 0xff) << 8  |
          (ext[3] & 0xff);

   SetCatalogInfo(type);
#endif

   return;
}

void FileIO::SetCatalogInfo(wxUint32 type)
{
#ifdef __WXMAC__
   if (!mOpen ) {
      return;
   }

   wxFileName fn(mName);

   fn.MacSetTypeAndCreator(type, AUDACITY_CREATOR);
#endif

   return;
}

wxInputStream & FileIO::Read(void *buf, size_t size)
{
   if (mInputStream == NULL) {
      return *mInputStream;
   }

   return mInputStream->Read(buf, size);
}

wxOutputStream & FileIO::Write(const void *buf, size_t size)
{
   if (mOutputStream == NULL) {
      return *mOutputStream;
   }
   
   return mOutputStream->Write(buf, size);
}