Expanding QToolButton size

[shentian]

Did you consider using two or more tool bars?

[kodiak]

I have found solution. I had to change Qt source code and rebuild. It should be replace return value in method int QCommonStyle:ixelMetric(PixelMetric m, const QStyleOption *opt, const QWidget *widget) const for PM_ToolBarExtensionExtent case, if anybody it helps.