How to set QLabel looks like QToolTip

[topfortune]

Hello,

I am creating a popup label, and I want it to be looking like a Tooltip. My platform is Win7 x64 Qt 4.7.4. Below is my code:

label->setPalette( QToolTip::palette() );

label->setPalette( QToolTip::palette() );

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But when running, the label can not has a system tooltip looking. I attached 2 screenshots in this thread. One the label that looks like on my PC, another is the QToolTip image.

Anybody know what's wrong of my code? How can I set the QLabel to look like QToolTip? Thanks.


p1.pngp2.png

[wysota]

You can try with changing the window type to Qt::Tooltip however I don't think it will work. Why do you want to make a label look like a tooltip?

[d_stranz]

As it says in the docs, QToolTip uses the "Inactive" color group from the palette. QLabel probably uses the "Active" color group.

I do not know if the following would work, but you could try it:

QPalette pal( QToolTip::palette() );
pal.setColorGroup( QPalette::Inactive );
label->setPalette( pal );

QPalette pal( QToolTip::palette() );
pal.setColorGroup( QPalette::Inactive );
label->setPalette( pal );

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But as Wysota asks, why do you want to make a label look like a tooltip? Why not just use QToolTip?

[topfortune]

Thanks to Wysota and d_stranz! Thank you for your reply.

I use the following code to set the QLabel, and also does not work.

QPalette pal = QToolTip::palette();
pal.setColor( label->backgroundRole(), pal.color( QPalette::Inactive, QPalette::ToolTipBase ) );
pal.setColor( label->foregroundRole(), pal.color( QPalette::Inactive, QPalette::ToolTipText ) );
label->setPalette( pal );

QPalette pal = QToolTip::palette();
pal.setColor( label->backgroundRole(), pal.color( QPalette::Inactive, QPalette::ToolTipBase ) );
pal.setColor( label->foregroundRole(), pal.color( QPalette::Inactive, QPalette::ToolTipText ) );
label->setPalette( pal );

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I want to make something like Code Parameters in Qt Creator (See the screenshot below). When the code parameters is displaying, the tooltip is still available when you hover on code.

p3.png

[wysota]

So why don't you use QToolTip::showText()?

[topfortune]

Sorry, Maybe I did not make it clear. When the code parameter is displaying, tooltip still need to be available when you hover on the code. Just Like in Qt Creator. See screenshot.

Is it possible to create an instance of QToolTip?

p4.png

[wysota]

Sorry, Maybe I did not make it clear. When the code parameter is displaying, tooltip still need to be available when you hover on the code. Just Like in Qt Creator. See screenshot.

Is it possible to create an instance of QToolTip?

Did you try using QToolTip::showText()?

[topfortune]

After looking into the QToolTip implement, I solve the problem. I moved the QTipLabel into my project.

Thank you!