C++ wxFile::Open方法代码示例

Ztring OldFiles_Test ()
{
    //Checking version in Info_Version
    ToShow+=__T("Version checked : ");
    F.Open(__T("../Source/MediaInfo/MediaInfo_Config.cpp"));
    I=F.Read(C, 1000000);
    if (!I)
    {
        ToShow+=__T("Error opening ../Source/MediaInfo/MediaInfo_Config.cpp");
        return ToShow;
    }
    C[I]=0;
    Z.From_Local(C);
    Version=Z.SubString(__T("MediaInfoLib - v"), __T("\")"));
    if (Version.size()!=7)
    {
        ToShow+=__T("Error reading ../Source/MediaInfo/MediaInfo.cpp : \"MediaInfoLib - vX.X.X.X - \" not found");
        return ToShow;
    }
    Version_Short=Version; Version_Short.resize(3);
    ToShow+=Version+__T("\r\n");

    //Checking version in MediaInfo.h
    if (Test_Version("../Source/MediaInfo/MediaInfo.h", "@version ", "\n")) return ToShow;
    if (Test_Version("../Source/MediaInfo/MediaInfoList.h", "@version ", "\n")) return ToShow;
    if (Test_Version("../Project/MSVC/Dll/MediaInfo.rc", " FILEVERSION ", "\n")) return ToShow;
    if (Test_Version("../Project/MSVC/Dll/MediaInfo.rc", " PRODUCTVERSION ", "\n")) return ToShow;
    if (Test_Version("../Project/MSVC/Dll/MediaInfo.rc", "            VALUE \"FileVersion\", \"", "\"")) return ToShow;
    if (Test_Version("../Project/MSVC/Dll/MediaInfo.rc", "            VALUE \"ProductVersion\", \"", "\"")) return ToShow;
    if (Test_Version("../History.txt", "Version ", " ")) return ToShow;
    if (Test_Date(__T("MSVC/Library/MediaInfo.lib"))) return ToShow;
    if (Test_Date(__T("MSVC/Dll/MediaInfo.dll"))) return ToShow;

    return ToShow;
}

// pass an uninitialized file object, the function will ask the user for the
// filename and try to open it, returns true on success (file was opened),
// false if file couldn't be opened/created and -1 if the file selection
// dialog was cancelled
int SjLogDialog::OpenLogFile(wxFile& file, wxString& retFilename)
{
	SJ_WINDOW_DISABLER(this);

	// get the file name
	// -----------------
	SjExtList extList; extList.AddExt(wxT("txt"));
	wxFileDialog dlg(this, _("Save"), wxT(""), wxT("log.txt"), extList.GetFileDlgStr(wxFD_SAVE), wxFD_SAVE|wxFD_CHANGE_DIR);
	if( dlg.ShowModal() != wxID_OK ) { return -1; }
	wxString filename = dlg.GetPath();

	// open file
	// ---------
	bool bOk wxDUMMY_INITIALIZE(false);
	if ( wxFile::Exists(filename) )
	{
		wxASSERT( wxYES != wxCANCEL );
		wxASSERT( wxNO != wxCANCEL );
		bool bAppend = false;
		switch( SjMessageBox(wxString::Format(_("Overwrite \"%s\"?"), filename.c_str()), SJ_PROGRAM_NAME,
		                     wxICON_QUESTION | wxYES_NO | wxCANCEL, this, NULL, NULL, _("Yes"), _("Append")) )
		{
			case wxYES:
				bAppend = false;
				break;

			case wxNO:
				bAppend = true;
				break;

			default:
				return -1;
		}

		if ( bAppend ) {
			bOk = file.Open(filename, wxFile::write_append);
		}
		else {
			bOk = file.Create(filename, true /* overwrite */);
		}
	}
	else {
		bOk = file.Create(filename);
	}

	retFilename = filename;

	return bOk;
}

/// Opens the file and also adds a standard comment at the start of it.
int SourceOutputStream::OpenFile(const wxString & Filename)
{
   nBytes = 0;
   bool bOk;
   bOk = File.Open( Filename, wxFile::write );
   if( bOk )
   {
      File.Write( wxT("//   ThemeAsCeeCode.h\r\n") );
      File.Write( wxT("//\r\n") );
      File.Write( wxT("//   This file was Auto-Generated.\r\n") );
      File.Write( wxT("//   It is included by Theme.cpp.\r\n") );
      File.Write( wxT("//   Only check this into CVS if you've read and understood the guidelines!\r\n\r\n   ") );
   }
   return bOk;
}

int Test_Version(char* FileName_, char* Begin, char* End)
{
    wxString FileName=Ztring().From_Local(FileName_).c_str();
    //Opening File
    F.Open(FileName);
    I=F.Read(C, 1000000);
    if (!I)
    {
        ToShow+=__T("Error opening ")+FileName;
        return -1;
    }

    //Getting information
    C[I]=0;
    Z.From_Local(C);
    Z=Z.SubString(Ztring().From_Local(Begin), Ztring().From_Local(End));

    //deleting extra bytes
    if (Z[Z.size()-1]=='\n')
        Z.resize(Z.size()-1);
    if (Z[Z.size()-1]=='\r')
        Z.resize(Z.size()-1);

    //Testing validity
    if (Z.size()!=3 && Z.size()!=7) //non long, no short
    {
        ToShow+=__T("Error reading ")+FileName;
        return -2;
    }

    //Reformtation information
    Z.FindAndReplace(__T(","), __T("."), 0, Ztring_Recursive);

    if (Z!=Version && Z!=Version_Short)
    {
        ToShow+=FileName;
        ToShow+=__T(" is not good : version is marked ");
        ToShow+=Z;
        ToShow+=__T("\r\n");
    }
    return 0;
}

// ----------------------------------------------------------------------------
// Pass an uninitialized file object. The function will ask the user for the
// filename and try to open it. It returns true on success (file was opened),
// false if file couldn't be opened/created and -1 if the file selection
// dialog was canceled.
//
static bool OpenLogFile(wxFile& file, wxString& filename, wxWindow *parent)
{
	filename = wxSaveFileSelector(L"log", L"txt", L"log.txt", parent);
	if ( !filename ) return false; // canceled

	if( wxFile::Exists(filename) )
	{
		bool bAppend = false;
		wxString strMsg;
		strMsg.Printf(L"Append log to file '%s' (choosing [No] will overwrite it)?",
						filename.c_str());

		switch ( Msgbox::ShowModal( _("Save log question"), strMsg, MsgButtons().YesNo().Cancel() ) )
		{
			case wxID_YES:
				bAppend = true;
			break;

			case wxID_NO:
				bAppend = false;
			break;

			case wxID_CANCEL:
				return false;

			default:
				pxFailDev( "invalid message box return value" );
		}

		return ( bAppend ) ?
			file.Open(filename, wxFile::write_append) :
			file.Create(filename, true /* overwrite */);
	}

	return file.Create(filename);
}