public static void ShowCairoPDFPage(WFCairoGraphics dg)
{
System.Diagnostics.Debug.Assert(dg.Target is Cairo.PdfSurface);
dg.ShowPage();
}
public static void SetCairoPDFSurfaceSize(WFCairoGraphics dg, DPoint pgSzMM)
{
System.Diagnostics.Debug.Assert(dg.Target is Cairo.PdfSurface);
// Convert page size in MM to cairo pdf points (1/72 inch , http://cairographics.org/manual/cairo-PDF-Surfaces.html#cairo-pdf-surface-set-size)
double width = (pgSzMM.X / PageTools.MMPerInch) * 72;
double height = (pgSzMM.Y / PageTools.MMPerInch) * 72;
((Cairo.PdfSurface)dg.Target).SetSize(width, height);
}