do the QGraphicsTextItem have a function to set the cursor width?

[robertkun]

void QTextEdit::setCursorWidth(int width)
{
    Q_D(QTextEdit);
    d->control->setCursorWidth(width);
}

void QTextEdit::setCursorWidth(int width)
{
    Q_D(QTextEdit);
    d->control->setCursorWidth(width);
}

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In the QTextEdit class there have a function to set the Cursor'width for the user.

But In the QGraphisTextItem there is nothing .

How can I to change it ? thanks.