What should I return in stylehint()?

Tomi

Hi,

I have an example:

class MyStyle : public QProxyStyle
{
public:
    using QProxyStyle::QProxyStyle;

    int styleHint(QStyle::StyleHint hint, const QStyleOption* option = 0, const QWidget* widget = 0, QStyleHintReturn* returnData = 0) const
    {
        if (hint == QStyle::SH_Slider_AbsoluteSetButtons)
            return (Qt::LeftButton | Qt::MidButton | Qt::RightButton);
        return QProxyStyle::styleHint(hint, option, widget, returnData);
    }
};

In docs:

Returns an integer representing the specified style hint for the given widget described by the provided style option.

But what is Qt::LeftButton | Qt::MidButton | Qt::RightButton ? I know there are mouse buttons, but why I returned them? How to know what I should to return?

JonB

@Tomi
Since I assume this is for a QTabBar you would look through its documentation page and come across elideMode : Qt::TextElideMode and therefore enum Qt::TextElideMode. I did that by searching around and you would need to do the same.

JonB

@Tomi
You look that up for the hint == QStyle::SH_Slider_AbsoluteSetButtons case you are covering. So https://doc.qt.io/qt-6/qstyle.html#StyleHint-enum :

QStyle::SH_Slider_AbsoluteSetButtons 64 Which mouse buttons cause a slider to set the value to the position clicked on.

So in this case clicking any of those 3 specific mouse buttons will cause the slider take the position clicked on. If, say, you decided you want to use right-click on slider for some other purpose you would remove Qt::RightButton from your return value.

Tomi

@JonB Thank you. But what I should return for example for "QStyle::SH_TabBar_ElideMode"
QStyle::SH_TabBar_ElideMode 67 The default eliding style for a tab bar.?

JonB

@Tomi
Since I assume this is for a QTabBar you would look through its documentation page and come across elideMode : Qt::TextElideMode and therefore enum Qt::TextElideMode. I did that by searching around and you would need to do the same.

Tomi

@JonB Thank you :)