void ExportPage(PdfDocument doc, ChartPage chart)
{
// Create an empty page
var page = doc.AddPage();
if (ExportOptions.Orientation == PageOrientation.Landscape)
{
page.Orientation = PdfSharp.PageOrientation.Landscape;
}
// Get an XGraphics object for drawing
var graphics = XGraphics.FromPdfPage(page);
//
if (ExportOptions.WithBackground && !chart.BackColor.IsEmpty)
{
graphics.Clear(chart.BackColor);
}
//
var contentSize = chart.GetContentSize();
var pageSize = new Size((int)page.Width.Point, (int)page.Height.Point);
var zoom = PaintHelper.GetZoom(contentSize, pageSize);
var zoomedSize = PaintHelper.Zoom(contentSize, zoom);
if (zoomedSize.Width < pageSize.Width || zoomedSize.Height < pageSize.Height)
{
graphics.TranslateTransform(
Math.Max(0, (pageSize.Width - zoomedSize.Width) / 2),
Math.Max(0, (pageSize.Height - zoomedSize.Height) / 2));
}
graphics.ScaleTransform(zoom);
//
if (chart is MindMap)
{
var grf = new PdfGraphics(graphics);
var args = new RenderArgs(grf, (MindMap)chart, grf.Font(ChartBox.DefaultChartFont));
var renderer = new GeneralRender();
renderer.Paint((MindMap)chart, args);
}
}