void FormEditorGraphicsView::drawBackground(QPainter *painter, const QRectF &rectangle)
{
painter->save();
painter->setBrushOrigin(0, 0);
painter->fillRect(rectangle.intersected(rootItemRect()), backgroundBrush());
// paint rect around editable area
painter->setPen(Qt::black);
painter->drawRect( rootItemRect());
painter->restore();
}
void FormEditorWidget::centerScene()
{
m_graphicsView->centerOn(rootItemRect().center());
}