private void SaveXpsPage(string filename)
{
var clone = VisualClone();
if (!XpsDocs.ContainsKey(filename))
{
var d = new FixedDocument();
d.DocumentPaginator.PageSize = GetSize(clone);
XpsDocs.Add(filename, d);
}
var doc = XpsDocs[filename];
XpsSnapshots[filename] = this;
var size = doc.DocumentPaginator.PageSize;
var cont = new PageContent();
var pg = new FixedPage();
var canvas = new Canvas();
canvas.Children.Add(clone);
canvas.Width = size.Width;
canvas.Height = size.Height;
pg.Width = size.Width;
pg.Height = size.Height;
pg.Background = Brushes.White;
pg.Children.Add(canvas);
FixedPage.SetLeft(canvas, 0);
FixedPage.SetRight(canvas, 0);
((IAddChild)cont).AddChild(pg);
//clone.MeasureAndArrange(new Size(clone.Width, clone.Height));
var width = clone.Width;
var height = clone.Height;
double zoom = 1;
if (FitToPage)
{
zoom = Math.Min(size.Width / width, size.Height / height);
}
if (zoom != 1)
{
clone.LayoutTransform = new MatrixTransform(zoom, 0, 0, zoom, 0, 0);
width *= zoom;
height *= zoom;
clone.MeasureAndArrange(new Size(width, height));
}
Canvas.SetLeft(clone, (size.Width - width) / 2);
Canvas.SetTop(clone, (size.Height - height) / 2);
cont.Measure(size);
cont.Arrange(new Rect(new Point(), size));
cont.UpdateLayout();
doc.Pages.Add(cont);
}