QTableWidget Header showing unnecessary checkbox when used with QProxyStyle

hi,
i have added a QProxyStyle to get horizontal text in vertical QTreeHeader.In windows XP this header shows unnecessary checkbox in header.i have attached a image of this.Any one had this kind of problem?

This is because of the QProxyStyle that i applied.
Is there a better way to get my vertical header text written as horizontal.


this is the styled i used.

Code:

---

class MyHorizontalHeader: public QProxyStyle
{
public:
	MyHorizontalHeader(QStyle *style) : QProxyStyle(style) {}
 
	void drawControl(ControlElement element, const QStyleOption *option, QPainter *painter,const QWidget *widget = 0) const
	{
		if (element == QStyle::CE_HeaderLabel) 
		{
			const QHeaderView *hv = qobject_cast<const QHeaderView *>(widget);
			if (!hv || hv->orientation() != Qt::Horizontal)
			{
				return QProxyStyle::drawControl(element, option, painter, widget);
			}
			const QStyleOptionHeader *header = qstyleoption_cast<const QStyleOptionHeader *>(option);
			painter->save();
			painter->translate(header->rect.bottomLeft());
			painter->rotate(270);
			painter->drawText(0,10,header->text);
			painter->restore();
			return;
		}
		return QProxyStyle::drawControl(element, option, painter, widget);
	}
};

---

Attachment 7257

this is the vertical header of my tree view.. in the 1st column i don't have any text,from the 2nd column onwards i have text.

Thanks