(QSS) Why are two QPushButtons of different height if both are sized relative to their text height using "em" as unit

[qwasder85]

I have two QPushButtons, both H/V size policies are set to "Fixed", they sit next to one another in a QHBoxLayout and my QSS for QPushButton is this:

QPushButton
{
    background-color: #3c9eb8;
    border: none;
    font-family: "Segoe UI";
    font-size: 8pt;
    color: white;
    outline: none;
    padding-left: 1.0em;
    padding-right: 1.0em;
    min-height: 2em;
    min-width: 4em;
}

This is the result:

How can they be of different height if the height is based on the font size, which is the same for both?
I'm using Qt5.9 on Windows 10.

[SGaist]

Hi,

You should add which Qt version you are using and the OS as well.

[qwasder85]

Thanks, I did. Qt5.9, Windows 10.

[SGaist]

Can you share how you create the buttons ?

[mchinand]

I'm not sure if this is affecting it, but 'Open' has a descending character, p, whereas 'New' does not. I would still expect the buttons to have the same height if you created them the same way.

[qwasder85]

@mchinand That's the only difference I could make out as well. But the definiton of "em" states that the unit's size only depends on the size of the letter 'm'.

[qwasder85]

@SGaist said in (QSS) Why are two QPushButtons of different height if both are sized relative to their text height using "em" as unit:

Can you share how you create the buttons ?

Sure:

    m_p_new_button = new QPushButton;
    m_p_new_button->setText(tr("New"));
    m_p_new_button->setEnabled(true);
    m_p_new_button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

    m_p_open_button = new QPushButton;
    m_p_open_button->setText(tr("Open"));
    m_p_open_button->setEnabled(false); // Enabled dynamically
    m_p_open_button->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

    QHBoxLayout* p_button_layout = new QHBoxLayout;
    p_button_layout->setSpacing(5);
    p_button_layout->addWidget(m_p_new_button);
    p_button_layout->addWidget(m_p_open_button);