html text can not be justified on both(left and right) sides in qlabel, qtextbrowser and qtextedit

JoeCFD

html text is aligned only to left or right, but not both in qlabel, qtextbrowser or qtextedit. Did anyone have the same problem before?
I know QWebengineView works with html text for justfied alignment.

#include <QApplication>
#include <QTextEdit>

int main(int argc, char *argv[]) {
    QApplication app(argc, argv);

    // Create a QTextEdit
    QTextEdit textEdit;
    textEdit.setAlignment( Qt::AlignJustify );

    // Set HTML content with justified text alignment
    QString htmlContent = "<html><body>"
                          "<p style='text-align:justify;'>This is a sample text with justified alignment.Additional paragraphs can be added as needed."
                          "Additional paragraphs can be added as needed.This is a sample text with justified alignment.</p>"
                          "</body></html>";
    textEdit.setHtml(htmlContent);

    // Remove the border using a style sheet
    textEdit.setStyleSheet("border: none;");

    // Show the QTextEdit
    textEdit.show();

    return app.exec();
}

Linux 22.04 and Qt 5.15.3

Chris Kawa

@JoeCFD You can use plain HTML instead of CSS: <p align='justify'>.

Pl45m4

@JoeCFD

What happens if you

widget->setAlignment(Qt::AlignJustify)

afterwards (after setting the text/html)?
Does it work at all? If so, then it must be something with the HTML

JoeCFD

@Pl45m4 It is not a HTML thing. QWebEngineView justifies the html text well. I guess these widgets do not support enough html features. When I use QWebEngineView, it creates a spacing at its top and bottom and I can not reduce it.

Chris Kawa

@JoeCFD You can use plain HTML instead of CSS: <p align='justify'>.

JoeCFD

@Chris-Kawa Thanks for your reply, Chris. I tried it and only one line is displayed. I will look into this later.

Chris Kawa

@JoeCFD I don't have Qt 5 at hand, but it works in 6.6.

mpergand

@Chris-Kawa
I can confirm it works in Qt 5.15.2.

JoeCFD

@Chris-Kawa Tested it. Works nicely. Many thanks.