How i can use  in text description from QCheckbox?

问题

I want to use the HTML

ui->FresBox->setText("f<sub>res</sub>");

but it does not work in a QCheckbox. It works fine if you use a label. What is the different and how can I use the HTML style in a QCheckbox.

回答1:

Unfortunately, QCheckBox does not support HTML, so in these cases I prefer to use a QCheckBox plus a QLabel in a QHBoxLayout as I show below:

#include <QtWidgets>


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

    QWidget w;

    // start
    QCheckBox *checkbox = new QCheckBox();
    QLabel *label = new QLabel("f<sub>res</sub>");

    QHBoxLayout *hlay = new QHBoxLayout;
    hlay->setContentsMargins(0, 0, 0, 0);
    // hlay->setSpacing(0);
    hlay->addWidget(checkbox, 0);
    hlay->addWidget(label, 1);
    // end

    QVBoxLayout *lay = new QVBoxLayout(&w);
    lay->addLayout(hlay);
    lay->addWidget(new QCheckBox("plain checkbox"));

    w.show();

    return a.exec();
}

回答2:

Why not use a disabled ''QTextEdit''? A ''QTextEdit'' should accept rich text (''setAcceptRichText(true)'').

来源：https://stackoverflow.com/questions/58145611/how-i-can-use-sub-sub-in-text-description-from-qcheckbox