Gradient for chunks in QProgressBar - qt

Question

Is it possible to set a common gradient for all QProgressBar chunks?
If use something like this:
QProgressBar::chunk:horizontal {
background: qlineargradient(x1: 0, y1: 0.5, x2: 1, y2: 0.5,
stop: 0 green,
stop: 1 white);
margin-right: 2px;
width: 10px;
}
the result will be
http://labs.trolltech.com/blogs/wp-content/uploads/2007/06/progressbar_righttext.png
but I want to obtain a one gradient, stretched to all chunks. Like this:
http://labs.trolltech.com/blogs/wp-content/uploads/2007/06/progressbar_nochunk.png
divided onto chunks.
Thanks for all!

Answer 1

You must only remove:
QProgressBar::chunk:horizontal {
background: qlineargradient(x1: 0,
y1: 0.5,
x2: 1,
y2: 0.5,
stop: 0 green,
stop: 1 white);
margin-right: 2px;
width: 10px; // <------ remove this propierty
}

Answer 2

You cannot achieve what you want with the existing stylesheet properties. You could however subclass QProgressBar and reimplement the paint in order to get the appearance you wish.

Answer 3

something like this would work, but I'd prefer subclassing QProgressBar as webclectic said
class Wrapper : public QWidget
{
Q_OBJECT
QProgressBar *progressBar ;
QSlider *slider ;
public :
Wrapper(void) : QWidget(), progressBar(new QProgressBar), slider(new QSlider(Qt::Horizontal))
{
progressBar->setMinimum(0) ;
progressBar->setMaximum(100) ;
slider->setMinimum(0) ;
slider->setMaximum(100) ;
QVBoxLayout *l = new QVBoxLayout ;
setLayout(l) ;
l->addWidget(progressBar) ;
l->addWidget(slider) ;
slider->setValue(0) ;
connect(slider, SIGNAL(valueChanged(int)), SLOT(slider_value_changed(int))) ;
slider_value_changed(0) ;
}
protected slots :
void slider_value_changed(int new_value)
{
QString updated_bg = QString("background: qlineargradient(x1: 0, y1: 0.5, x2: 1, y2: 0.5, stop: 0.0 green, stop: %0 white, stop: 1.0 white);").arg(new_value/100.0) ;
QString style_sheet ;
style_sheet += QString("QProgressBar {"
"%0"
"border: 2px solid grey;"
"border-radius: 5px;"
"text-align: center;"
"}").arg(updated_bg) ;
style_sheet += "QProgressBar::chunk {"
"background: transparent;"
"width: 10px;"
"margin: 0.5px;"
"}" ;
progressBar->setStyleSheet(style_sheet) ;
progressBar->setValue(new_value) ;
}
} ;
int main( int argc, char **argv )
{
QApplication app(argc, argv) ;
Wrapper w ;
w.show() ;
return app.exec() ;
}