troubles with changing progressBar color

[dilidpan]

Hello to everybody,

I'm using the latest version of Qt Creator.
I have problems while trying to change the progressBar color. I tried-out the examples in tutorials and all suggestions in forums. It still don't work at all.
I tried this suggestion.
QPalette pal = ui->progressBar->palette();
pal.setColor(QPalette::Highlight, QColor("blue"));
pal.setColor(QPalette::Foreground, QColor("magenta"));
pal.setColor(QPalette::Background, QColor("yellow"));
pal.setColor(QPalette::Button, QColor("red"));
ui->progressBar->setPalette(pal);What happens is that only the text color of the percentage is changing.

When I have concrete value I must change the color of progress bar to red for example.
Can someone help me to solve this problem. I don't understand why this code doesn't work .

[spirit]

works fine. have a look at style sheet example.

[dilidpan]

But it doesn't work at my application. It only sets the percentage text color. The other colors are not changed. I want to set the bar to be red, but it's still green. Where am I wrong?

[spirit]

open the Qt Designer and play with a progress bar palette.

[spirit]

ah, add this line

pal.setColor(QPalette::Window, QColor("red"));

pal.setColor(QPalette::Window, QColor("red"));

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[dilidpan]

OK. I'll try.

[dilidpan]

Still doesn't work.

[Lykurg]

Try this on your machine:

#include <QtGui>
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QProgressBar bar;
    bar.setValue(50);
    QPalette pal = bar.palette();
    pal.setColor(QPalette::Highlight, QColor("yellow"));
    bar.setPalette(pal);
    bar.show();
    return a.exec();
}

#include <QtGui>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QProgressBar bar;
    bar.setValue(50);
    QPalette pal = bar.palette();
    pal.setColor(QPalette::Highlight, QColor("yellow"));
    bar.setPalette(pal);
    bar.show();
    return a.exec();
}

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If it is yellow you probably set a style sheet in ui->progressBar. Because then the palette quit to work.

[dilidpan]

The progressBar is green. No change at all.

[Lykurg]

Ok, which style and Qt version do you use, because the sample works well at my system?

[dilidpan]

I am programming on Windows XP and use Qt Creator 1.0.0 Based on Qt 4.5.0.

[dilidpan]

I did it . It works with suggestion from the following link: http://www.qtcentre.org/forum/f-qt-p...eet-20557.html
from this forum -> problem in QProgressBar setStyleSheet.

[Lykurg]

I did it . It works with suggestion from the following link: http://www.qtcentre.org/forum/f-qt-p...eet-20557.html
from this forum -> problem in QProgressBar setStyleSheet.

They work with style sheets not with palette? Which suggestion do you refer to?

[momchil]

They do it by setting the style sheet, similar to this:

ui_lcd.progressBar->setStyleSheet("QProgressBar::chunk {background: qlineargradient(x1: 0, y1: 0.5, x2: 1, y2: 0.5, stop: 0 red, stop: 1 white); }");

ui_lcd.progressBar->update();
ui_lcd.progressBar->show();

that does what I needed...
thanks to everyone involved!

P.S. note what that post warns about -- have to set the style sheet in a *single* setStyleSheet() call...