QLineEdit won't show Chinese characters in popup menu

Puppy Bear

I'm trying to set a popup menu with QLineEdit, QCheckbox.
the code is right here.
https://github.com/ThisIsClark/Qt-MultiSelectComboBox

The env is Qt5.9.3 and win10. encode with utf-8. Using microsoft chinese default input.

But here comes a problem, Qt seems showing corectly Chinese characters with normal QLineEdits , while mSearchBar won't.

There's no character limit for this QLineEdit so my guess it's not a wrong setting issue.
How I'm I able to fix this?
Thanks

jsulm

@Puppy-Bear said in QLineEdit won't show Chinese characters in popup menu:

while mSearchBar won't

And what are the differences between mSearchBar and other QLineEdits?

Puppy Bear

@jsulm My guess is the others are normally set in main window& widgets, while this one is in a popup menus.

Puppy Bear

@Puppy-Bear Possibly is associate with this bug report
https://bugreports.qt.io/browse/QTBUG-45086

Puppy Bear

Fix:
I tried this code & it fixed this problem ^ ^, Thanks again for response.
It seems that popup menus would get error with QLineEdit.
Rewrite eventfilter would help.

bool MultiSelectComboBox::eventFilter(QObject* aObject, QEvent* aEvent)
{
    if (aObject == mLineEdit && aEvent->type() == QEvent::MouseButtonRelease) {
        showPopup();
        return false;
    }
    else if(aObject == mSearchBar)
    {
        if(aEvent->type() == QEvent::FocusIn)
                {
            mSearchBar->setFocus();
            mSearchBar->activateWindow();
            mSearchBar->grabKeyboard();
                }
        else if(aEvent->type() == QEvent::FocusOut)
                {
                }
    }
    return QWidget::eventFilter(aObject, aEvent);
    //return false;
}```


![a6c6eb54-5008-4882-b5ea-48c2073090d5-image.png](https://ddgobkiprc33d.cloudfront.net/7e82b33d-b1e2-4021-854a-254fdc7bb746.png)

Puppy Bear

@Puppy-Bear mSearchBar->installEventFilter(this); first