QPushButton color on MacOSX

[cady]

I am running out of ideas... how do I color the background of a QPushButton while keeping the OS style?
I am using Qt 5.15 on Mac OSX 12.4.

Here is what I have tried in a sample application. I have a MainWindow with a GridLayout and few controls, including a QPushButton and a QComboBox. I have the same issue with both the button and the combo box.

Here is my code:

    QPalette newPal = ui->pushButton->palette();
    newPal.setColor(QPalette::ButtonText, QColor(Qt::white)); // Yes, this updates the text color
    newPal.setColor(QPalette::Button, QColor(Qt::blue)); // Nope, doesn't update the background
    newPal.setColor(QPalette::Window, QColor(Qt::blue)); // Nope
    newPal.setColor(QPalette::Base, QColor(Qt::blue)); // Another nope
    newPal.setColor(QPalette::Active, QPalette::Button, QColor(Qt::blue)); // Still nope
    newPal.setColor(QPalette::Inactive, QPalette::Button, QColor(Qt::blue)); // Nope
    // ui->pushButton->setBackgroundRole(QPalette::Button); // Doesn't change anything, should already be using that role anyway
    // ui->pushButton->setAutoFillBackground(true); // Paints the blue on the background BEHIND the button
    // ui->pushButton->setStyleSheet("background-color: blue"); // Works, but loses the MacOS styling, switch to Windows styling
    // ui->pushButton->setStyle(QStyleFactory::create("Macintosh")); // This doesn't even help the above, it keeps the Windows looking control
    // ui->pushButton->setStyleSheet("border: none"); // Makes the button totally disappear
    ui->pushButton->setPalette(newPal);
    ui->pushButton->update(); // Probably not needed?

https://imgur.com/s5tUumR

Any other suggestions? Thanks!

[SGaist]

Hi,

The system style are free to ignore hints in order to stay coherent with the OS guide lines so you are likely hitting that.

One possible way is to create a QProxyStyle.