QPrinter doesn't print with colors.

[HenkCoder]

Hello, I'm currently making a notepad in Qt and I tried to print a file with colors.

this is the file, sorry it's in italian.

This is my code:

void MainWindow::on_print_clicked()
{
    //Getting the settings.json file
    QFile settings(QCoreApplication::applicationDirPath() + "/settings.json");
    QByteArray content;
    if(settings.open(QIODevice::ReadOnly | QIODevice::Text))
    {
        content = settings.readAll();
        settings.close();
    }

    QJsonParseError *errPars{new QJsonParseError()};
    QJsonDocument jsonDoc{QJsonDocument::fromJson(content, errPars)};
    QJsonObject obj{jsonDoc.object()};

    //Setting up the printer
    QPrinter printer;
    printer.setResolution(QPrinter::HighResolution);
    printer.setPageSize(QPageSize::A4);
    if(obj["printHorizontally"].toBool() == false)
        printer.setPageOrientation(QPageLayout::Portrait);
    else
        printer.setPageOrientation(QPageLayout::Landscape);
    if(obj["printWithColors"].toBool() == false)
        printer.setColorMode(QPrinter::GrayScale);
    else
        printer.setColorMode(QPrinter::Color);
    //Creating the page setup dialog
    QPageSetupDialog *pageSetup = new QPageSetupDialog(&printer, this);
    //Creating the printpreview dialog
    QPrintPreviewDialog *printPrev = new QPrintPreviewDialog(&printer);
    //QObject::connecting printPrev paint signal to print slot
    QObject::connect(printPrev, &QPrintPreviewDialog::paintRequested, this, &MainWindow::print);
    if(pageSetup->exec() == QDialog::Accepted)
    {
        printPrev->exec();
    }
}

//Print slot
void MainWindow::print(QPrinter *p)
{
    TextEdit *edit{getTabTextEdit()};
    edit->print(p);
}

So it checks if in the settings.json file the "printWithColors" is true, and it is.

Even if I've written printer.setColorMode(QPrinter::Color);, it still doesn't print in colors.
I tried and everything is correct but it is all black.
How can I solve this?

[artwaw]

@HenkCoder I would assume that content of your editor is being treated as plain text?

[HenkCoder]

@artwaw I don't know, how do I make to save formatting infos?

[artwaw]

@HenkCoder Try simple check. I assume that by TextEdit *edit{getTabTextEdit()}; you get the QTextEdit instance from the Ui, right? So I'd check acceptRichText() and the flags from autoFormatting().
Also doing qDebug() << edit->toHtml(); will show you if formatting tags are present.
On logic if you see rich text in the Ui it should also get printed, unless you mismatched printer settings or something.