How to remove blue focus rectangle?

[Mufan]

Hello! Is there any way to remove this blue focus rectangle (from QLineEdit, ex.)?
Thanks a lot!

[mrjj]

Hi and welcome to the forums

What Qt and platform is that ?
Not seen that before or at least not that big :)

[Mufan]

Hi mrjj! :)
Qt Creator 4.4.1
Based on Qt 5.9.2 (Clang 7.0 (Apple), 64 bit)
macOS Sierra 10.12.6

[raven-worx]

@Mufan
eitherway this already comes from a stylesheet set by you or it's the corresponding platform style.
Either way the simplest way to remove it is to using stylesheets again.

[Mufan]

I use stylesheets. So I've already tried:

background-color: yellow; //just to be sure it applies
outline: 0px;
outline: none;
outline-style: none;

It doesn't work. I've found this solution related to my issue:

class Style_tweaks : public QProxyStyle
{
    public:

        void drawPrimitive(PrimitiveElement element, const QStyleOption *option,
                           QPainter *painter, const QWidget *widget) const
        {
            /* do not draw focus rectangles - this permits modern styling */
            if (element == QStyle::PE_FrameFocusRect)
                return;

            QProxyStyle::drawPrimitive(element, option, painter, widget);
        }
};

qApp->setStyle(new Style_tweaks);

But I'm still thinking that there is a little bit more simple way...

[mrjj]

Hi
If you create a default GUI project and add a lineedit to a form, does
it default look at like that ?
I wondering if normal style OR style sheet that does it. sorry not a mac user so dont know native look.

[Mufan]

@mrjj Yeah, it does. So, it's not related to my custom stylesheet.
Moreover, it is a default behavior for other applications, you know...
For example, settings for QT Creator:

The vast majority of applications shows their lineedits with this behavior.

[mrjj]

@Mufan
Ok so it is the platform QStyle.
So the Style_tweaks is not a bad way of you want it for all lineedits you have as
its most effective for a global override.

[J.Hilk]

Theres an easy fix for that:

myLineEdit->setAttribute(Qt::WA_MacShowFocusRect,0);

will remove the mac specific focus rectangle.

[Mufan]

Yeah, guys! Qt::WA_MacShowFocusRect works. It's awesome!
Thank you a lot for your time and help!

P.S. Style_tweaks didn't work for me. It called only PE_FrameLineEdit and PE_PanelLineEdit, instead of PE_FrameFocusRect. Maybe I should set on some other flags and settings for that, I don't know...