QTabWidget Missed Style

Dear Sir/Madam

Hope everything is going well.

I recently tried to make custom QTabWidget which has following features:

1. Tabs be arranged in the Left side
2. Tabs and their corresponding frames have semi-transparent background
3. Customized borders for tabs and their corresponding frame.
4. Customized text of tabs (font, size and color).

I used QProxyStyle to rotate the text and also transpose height and width.

The Problem occurs when I use setStyleSheet() to define borders feature. When I define borders, it seems that system ignores the QProxyStyle.

You can comment/un-comment the borders definition to compare the results.

I also tried to override the paint event (to make a style aware widget) but it doesn't work.

Topic in Qt Forum