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Details

Type: Bug
Resolution: Duplicate
Priority: P2: Important
Fix Version/s: None
Affects Version/s: 5.2.1
Component/s: Widgets: Widgets and Dialogs
Labels:
None
Environment:
Qt 5.2.1 on a Mac running OSX 10.8

Platform/s:

macOS

Description

QDateTimeEdit with calendarPopup set to true has rendering issues on the Mac.

Reproduction Steps:

Create a new Qt Designer app project in Qt Creator on the Mac.
Add a QDateTimeEdit control to the main window.
Check the box next to "calendarPopup"

Expected:
QDateTimeEdit renders similar to what it did in Qt 4.8.4

Actual:
The edit field is shifted.

Attached is a screen shot of the sample application in Qt Creator and running.

Some investigation in to the QT code revealed a change in QMacStylePrivate::comboboxEditBounds that accounts for some of the shift.

QMacStyle::subControlRect contains specific code to adjust the the rect for combo boxes when being used with QDateTimeEdit but this code did not change for Qt 5.2.1.

The Workaround

Create a QT Style for your application with the following overlaoded code

QRect subControlRect(QStyle::ComplexControl control, const QStyleOptionComplex * option, QStyle::SubControl subControl, const QWidget * widget) const
{
    switch(control)
    {
    case CC_ComboBox:
        {
            if(subControl == SC_ComboBoxEditField)
            {
                if(qobject_cast<const QDateTimeEdit*>(widget))
                {
                    QRect result = TableauMacProxyStyle::subControlRect(control, option, subControl, widget);


                    result.moveTop(result.top() + 3);
                    result.setHeight(result.height() - 3);
                    result.setWidth(result.width() - 2);
                    return result;
                }
            }
        }
        break;
    }
    return BASE_CLASS::subControlRect(control, option, subControl, widget);
}