Vertical QProgressBar Text Direction

[martynets]

I'm faced with the problem described in the initial question: call setTextDirection(QProgressBar::BottomToTop) makes no visual difference on the progress bar. The code is:

QProgressBar* pb2=new QProgressBar;
 
 pb2->setOrientation(Qt::Vertical);
 pb2->setTextDirection(QProgressBar::BottomToTop);
 pb2->setRange(0, 100);
 pb2->setValue(20);
 
 current_layout->insertWidget(current_index++,pb2);

QProgressBar* pb2=new QProgressBar;

 pb2->setOrientation(Qt::Vertical);
 pb2->setTextDirection(QProgressBar::BottomToTop);
 pb2->setRange(0, 100);
 pb2->setValue(20);

 current_layout->insertWidget(current_index++,pb2);

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The text on the resulting progress bar is stil oriented top-to-bottom...
progressbar.png
Question is how to get the text oriented bottom-to-top?

Thank you in advance!

UPDATE:
This issue is caused by GTK+ style. The documentation says that some styles do not draw the text. This style seems to ignore the text direction option. From what I was able to test:
- Motif, CDE and Plastique styles draw the text correctly;
- Windows and Cleanlooks do not draw the text at all;
- GTK+ is buggy - draws the text but ignores the text direction option.

Hope this is helpful...