Russian Qt Forum

this->tempdir = new QString; //QString *tempdir
qf_tempdir = new QFile("x:/tempdir/example.txt"); //QFile *qf_tempdir;
QTextStream* in = new QTextStream(qf_tempdir);
*tempdir = in->readAll();
ui.textEdit->setText(*tempdir);

*tempdir->replace("a","b");

QString * tempdir; // WRONG!
QString tempdir; // GOOD

file.setFileName( "x:/y/z.txt" );
if ( file.open( QIODevice::ReadOnly ) )
{
  QTextStream in( &file );
  ui.textEdit->setText( in.readAll() );
}

QString qwe = in.readAll();
qwe.replace("windows", "unix");
n->ui.textEdit->setText(qwe);

.........................

	QString dirname = "C:\\Local Web\\";
	QDir directory = QDir( dirname );
	if ( fileName.isEmpty() )
		fileName = "*";
	files = directory.entryList( QStringList( fileName ),
		QDir::Files | QDir::NoSymLinks );

	unitName = "uniter.txt";
	findFiles( directory, files, unitName );
...............................

void NewspaperWindow::findFiles( const QDir &directory, const QStringList &files, const QString &text)
{
    QProgressDialog progressDialog( this );
    progressDialog.setCancelButtonText( tr( "&Cancel" ) );
    progressDialog.setRange( 0, files.count() );
    progressDialog.setWindowTitle( tr( "Find Files" ) );

    QStringList foundFiles;
QFile userfile(text);
    if ( userfile.open( QIODevice::WriteOnly | QIODevice::Text ) )
    {
		QTextStream out(&userfile);
		
        for ( int i = 0; i < files.count(); ++i )
        {
            progressDialog.setValue( i );
            progressDialog.setLabelText( tr( "Searching file number %1 of %2..." )
                                         .arg( i ).arg( files.count() ) );
            qApp->processEvents();

            if ( progressDialog.wasCanceled() )
                break;
            QFile file( directory.absoluteFilePath( files[ i ] ) );

            if ( file.open( QIODevice::ReadOnly ) )
            {
                QTextStream in(&file);
                while ( !in.atEnd() )
                {
                    if ( progressDialog.wasCanceled() )
                        break;

                    //userfile->write( file.readAll() );
					QByteArray data = file.readAll();
					QTextCodec *codec = Qt::codecForHtml( data );
					QString str = codec->toUnicode( data );
					QTextDocument * doc = new QTextDocument(this);
					if ( Qt::mightBeRichText( str ) )
					{
						doc->setHtml( str );
						str = doc->toPlainText();
						
					}
					else
					{
						str = QString::fromLocal8Bit( data );
						
					}
					out << str;
                    foundFiles << files[ i ];
                }
            }

        }
    }
    userfile.close();

QFile p_file = new Qfile("x:/tempdir/example.txt");

struct MyFile
{
  int count;
  QFile ** files;
};

MyFile * file = new MyFile;
file->count = 1;
file->files = new (QFile *)[count];
QByteArray * data;
if ( file->count < 1 )
{
  return; // what? memory leak?
}
file->files[0] = new QFile( "a:/b/c.txt" );
if ( !file->files[0]->open( QIODevice::ReadOnly ) )
{
  // return? what? memory leak again?
  // no! goto destruct section
  goto destruct;
}
data = new QByteArray( file->files[0]->readAll() );
...
destruct:
delete data; // what? forgot to NULL pointer?
delete file->files[0];
delete file->files; // what? forgot to use delete[] ?
delete file;

data = new QByteArray( file->files[0]->readAll() );

 delete data; // what? forgot to NULL pointer?
delete file->files[0];
delete file->files; // what? forgot to use delete[] ?
delete file;

file->files = new (QFile *)[count];

QFile file( a:/b.c.txt );
if ( !file.open( QIODevice::ReadOnly ) )
  return;
QByteArray data = file.readAll();

/tmp/delfirst/example1.txt
/tmp/delfirst/example2.txt
/tmp/delfirst/example3.txt
...
/tmp/delfirst/example50.txt

for(int i = 1; i <=ui.numberofPages->text().toInt(); i++){
		delete fileList[i];
}

qDeleteAll( fileList );
fileList.clear();