QGraphicsTextItem in non-gui application will crash

Using QGraphicsTextItem in non-gui application will result Segmentation fault. This happens because the cursor width is set based on the application style and non-gui application does not have a style.

The following code reproduces the problem:

int main(int argc, char *argv[])
{
QApplication app(argc, argv, false);

QImage image(200, 200, QImage::Format_ARGB32);
QPainter painter(&image);

QGraphicsTextItem item;
item.setHtml("<b>Graphics</b> item");
QStyleOptionGraphicsItem opt;
opt.state = QStyle::State_None;
item.paint(&painter, &opt, 0);

painter.end();

image.save("test.png");
return 0;
}