QGroupBox title with two different colors (left half black, right half orange)

[MasterBLB]

He fellow Qt devs,

How can I get the mentioned effect? To obtain a single title color is easy, either use palette-window text, or a style sheet...but I need two colors. Any hints?

[mrjj]

hi
I don't think you can make it do so with a stylesheet.

You most likely have to make your own custom GroupBox and paint it like that.

You might also be able via a QProxyStyle with an override for
drawItemText

as QGroupBox uses that for the text
proxy()->drawItemText(p, textRect, Qt::TextShowMnemonic | Qt::AlignHCenter | alignment,
groupBox->palette, groupBox->state & State_Enabled, groupBox->text,
textColor.isValid() ? QPalette::NoRole : QPalette::WindowText);
as seen here
https://code.woboq.org/qt5/qtbase/src/widgets/styles/qcommonstyle.cpp.html#3787

[MasterBLB]

I reimplemented whole MyGroupBox::paintEvent() copying the drawing code from CommonStyle into it, and using drawItemText twice. Anyway, thanks mate for correct hint!
WTF, why I can't mark @mrjj 's post as correct answer??

[J.Hilk]

@MasterBLB said in QGroupBox title with two different colors (left half black, right half orange):

WTF, why I can't mark @mrjj 's post as correct answer??

Sadly, until we update to a newer version of the forum software, that option is not available for every user.

I'll set it as the correct answer for you.