gradient background

[drkbkr]

Hello,
If someone could help me with getting a gradient in the background of a button, I'd appreciate it.

I would expect the following code to make the button's background be a gradient from red to white vertically from the top of the button to the bottom.

QPushButton *b = new QPushButton("Hi", this);
 
QLinearGradient linearGrad(0, 0, 0, b->height());
linearGrad.setColorAt(0, Qt::red);
linearGrad.setColorAt(1, Qt::white);
 
QPalette palette = b->palette();
palette.setBrush(QPalette::Button, QBrush(linearGrad));
b->setPalette(palette);

QPushButton *b = new QPushButton("Hi", this);

QLinearGradient linearGrad(0, 0, 0, b->height());
linearGrad.setColorAt(0, Qt::red);
linearGrad.setColorAt(1, Qt::white);

QPalette palette = b->palette();
palette.setBrush(QPalette::Button, QBrush(linearGrad));
b->setPalette(palette);

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All it does, though, is make the button black. Since it makes the button black, I know that I am successfully changing the palette and reapplying it, but I'm just not changing it in the right way.

Any help would be great.

Thanks,
Derek

[drkbkr]

Can I only get this effect on a button by using a QStyle?

[wysota]

You can always subclass the button and reimplement its paint event. Painting a button with a gradient is very tricky, so it's possible that it can't be done without subclassing.

[jacek]

http://www.trolltech.com/developer/t...entry&id=83921

[drkbkr]

Thank you. I set my QStyle to CDE and it worked fine.

Derek