void VisibleNowAddSlowContents(object sender, EventArgs e)
{
//TODO: this is causing green boxes when you quit while it is still working
//we should change this to a proper background task, with good
//cancellation in case we switch documents. Note we may also switch
//to some other way of making the thumbnails... e.g. it would be nice
//to have instant placeholders, with thumbnails later.
Application.Idle -= new EventHandler(VisibleNowAddSlowContents);
CheckFontAvailablility();
Cursor = Cursors.WaitCursor;
_model.ViewVisibleNowDoSlowStuff();
Cursor = Cursors.Default;
}
