[Qt-interest] Ret: Re: QDialog with rounded "corners"

[Markus Franke]

Dear all,

thanks for the many replies. However none of them really worked for me.

I have found a different solution now which I want to share with you. 
Maybe somebody can benefit from this in the future.

---snip---
void MyDialog::paintEvent(QPaintEvent* event)
{
        Q_UNUSED(event)

        updateMask();

        QPainter painter(this);
        painter.setRenderHint(QPainter::Antialiasing); // we need this in 
order to get correct rounded corners
        painter.setPen(QPen(QBrush(Qt::black), 2.0));
        painter.setBrush(QBrush(QColor(Qt::yellow)));
        painter.drawRoundedRect(rect().adjusted(2,1,-2,-1), 5, 5);
}

QRegion MyDialog::getRegion() const
{
        QPainterPath path;
        path.addRoundedRect(rect().adjusted(1, -1, -1, 0), 6, 6);
        return QRegion(path.toFillPolygon().toPolygon());
}

void MyDialog::updateMask()
{
        QBitmap Bitmap(size());
        Bitmap.clear();
        QPainter Painter(&Bitmap);

        Painter.setClipRegion(getRegion());
        Painter.fillRect(rect(), Qt::color1);
        Painter.end();

        setMask(Bitmap);
}
---snip---


Best regards,
Markus Franke

qt-interest-bounces+franke.m=sebakmt.com at qt.nokia.com schrieb am 
11.02.2011 07:16:41:

> Hello!
> 
> You need code like that:
> 
> QPalette palette;
> palette.setColor(QPalette::Base, Qt::transparent);
> yourWidget.setPalette(palette);
> yourWidget.setAttribute(Qt::WA_TranslucentBackground);
> 
> I used it with QML:
> 
> int main(int argc, char *argv[])
> {
>     QApplication a(argc, argv);
>         QDeclarativeView view;
>         // enable semi-transparent
>         QPalette palette;
>         palette.setColor(QPalette::Base, Qt::transparent);
>         view.setPalette(palette);
>         view.setAttribute(Qt::WA_TranslucentBackground);
> 
>         // loading QML from file
>         view.setSource(QUrl::fromLocalFile("../qml1/qml1.qml"));
> 
>         // disable OS GIU form-control
>         view.setWindowFlags(Qt::FramelessWindowHint);
> 
>         view.show();
> 
>     return a.exec();
> }
> 
> -- 
> Sincerely, Philipp Tkachev.
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at qt.nokia.com
> http://lists.qt.nokia.com/mailman/listinfo/qt-interest



"Disclaimer: This message is intended only for the use of the individual 
or entity to
which it is addressed and may contain information which is privileged, 
confidential, proprietary,
or exempt from disclosure under applicable law. If you are not the 
intended recipient or the person
responsible for delivering the message to the intended recipient, you are 
strictly prohibited from
disclosing, distributing, copying, or in any way using this message. If 
you have received this 
communication in error, please notify the sender and destroy and delete 
any copies you may have
received."
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.qt-project.org/pipermail/qt-interest-old/attachments/20110211/878b41d4/attachment.html