private XGraphics CreateGraphics(PdfPage pdfPage, PdfRendererOptions options)
{
var g = XGraphics.FromPdfPage(pdfPage, XGraphicsUnit.Point);
g.SmoothingMode = XSmoothingMode.HighQuality;
options.ConfigureGraphics?.Invoke(g);
return(g);
}
private static Size DetermineMaxSize(PdfPage pdfPage, PdfRendererOptions options, XGraphics g)
{
if (options.AdjustPageSize)
{
return(new Size(int.MaxValue, int.MaxValue));
}
var pageSize = new Size(pdfPage.Width.ToLayout(), pdfPage.Height.ToLayout());
var scaledSize = GetTransformedSize(g, pageSize);
var upscaledSize = new Size(
(int)(pageSize.Width / scaledSize.Width * pageSize.Width),
(int)(pageSize.Height / scaledSize.Height * pageSize.Height));
return(upscaledSize);
}
public void Render(Form form, PdfPage pdfPage, PdfRendererOptions options = null)
{
options = options ?? PdfRendererOptions.Default;
using (var localBitmapCache = new PdfBitmapCache())
{
using (var g = CreateGraphics(pdfPage, options))
{
var size = DetermineMaxSize(pdfPage, options, g);
form.LayOut(size, CreateContext(g, localBitmapCache));
if (options.AdjustPageSize)
{
AdjustPageSize(form, pdfPage, g);
}
}
using (var g = CreateGraphics(pdfPage, options))
Render(CreateContext(g, localBitmapCache), form.Content);
}
}