print QPlainTextEdit document plain text only - c++

Question

I'm wondering how to print the document of a QPlainTextEdit component without any colors, backgrounds or formats ( plain text only ). The code I have is printing the background ( white on black in my case ).
QPrinter printer;
QPrintDialog dialog( &printer, NULL );
dialog.setWindowTitle( tr( "Print Content" ) );
if ( isSelection ) {
dialog.addEnabledOption( QAbstractPrintDialog::PrintSelection );
}
if ( dialog.exec() == QDialog::Accepted ) {
document->print(&printer);
}
Any ideas ?? Thanks in advance !

Answer 1

Use this:
QPrinter printer(QPrinter::HighResolution);
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setOutputFileName("output.pdf");
QString buffer = ui->plainTextEdit->document()->toHtml();
ui->plainTextEdit->setPlainText(ui->plainTextEdit->toPlainText());
ui->plainTextEdit->document()->print(&printer);
ui->plainTextEdit->clear();
ui->plainTextEdit->appendHtml(buffer);
The main idea is to print only plainText without formatting, but set normal formatted text after printing, so user will not lose formatted data.
I thought about improvement, so I wrote also this:
QPrinter printer(QPrinter::HighResolution);
printer.setOutputFormat(QPrinter::PdfFormat);
printer.setOutputFileName("output.pdf");
QTextDocument *buffer = ui->plainTextEdit->document()->clone();
buffer->setPlainText(ui->plainTextEdit->toPlainText());
buffer->print(&printer);
Why is it better? We clone QTextDocument *buffer so we work with this new document. Our plainTextEdit remains untouchable, so user will not see unformatted text while print. But don't forget delete buffer When you don't need this clone aby more.
Result:
In pdf:
As you can see, there is no formatting.