disable editing in QSpinbox but enable arrows

Question

I have a QSpinBox in which I want to enable the arrows (for up and down values) but disable inserting data by the user. I've tried using this:

QtGui.QSpinBox.setReadOnly(True)

But it doesn't work. All is disabled and the arrows are 'stuck'.

score 13 · Accepted Answer · answered Sep 08 '16 at 17:55

13

If you set the spin-box readonly, it will disable eveything. Instead, just set the line-edit readonly, and then buttons will still work:

spinbox.lineEdit().setReadOnly(True)

answered Sep 08 '16 at 17:55

ekhumoro

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a_manthey_67 · Answer 2 · 2016-09-08T17:52:42.270

4

you can block spinboxes editor by QtGui.QSpinBox.lineEdit().setEnabled(False).

edit: and set font color and background-color:

spinbox.lineEdit().setStyleSheet('color: black; background-color: white;')

edited Sep 08 '16 at 17:52

answered Sep 08 '16 at 14:02

a_manthey_67

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Thx, it works. Any idea how do I change the font color? It greys out the spinbox background and the font. I tried this: QtGui.QSpinBox.setStyleSheet("color: rgb(161,161,161); ") but still the font is grey – roy.me Sep 08 '16 at 14:13
i think, the solution of @ekhumoro has some advantages: 'setStyleSheet' is not necessary, the user can copy the value to clipboard and no cursor is shown when 'readOnly' is set to True – a_manthey_67 Sep 09 '16 at 10:19
The color black and background color-white does not seem to work... any idea? – roy.me Sep 11 '16 at 14:13

Adriel Jr · Answer 3 · 2021-09-21T15:23:40.277

In case someone looking for an answer for this problem in C++ come here (like me), the other answers are not straightforward because QSpinBox::lineEdit() is a protected member (so it would require to also extend the class).

What worked for me was:

    auto l1SpinBox = new QSpinBox(this);
    auto lineEdit = l1SpinBox->findChild<QLineEdit*>();
    lineEdit->setReadOnly(true);
    lineEdit->setFocusPolicy(Qt::NoFocus);
    connect(l1SpinBox, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged), l1SpinBox,
            [&, lineEdit](){lineEdit->deselect();}, Qt::QueuedConnection);

setReadOnly alone may do the trick for you. However in my case, I wanted to improve UI making it also not focusable, and then hiding the selection when the value changes.

disable editing in QSpinbox but enable arrows

3 Answers3