C2020-002 Logic to get the iTechSharp Letter or A4 paper settings and the point size (length) or either paper size

PROMS/Volian.Print.Library/PDFPageSize.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using VEPROMS.CSLA.Library;
+using iTextSharp.text;
+
+
+namespace Volian.Print.Library
+{
+	public class PDFPageSize
+	{
+		// C2020-002 paper size is now set in the format files - this class is use to select the page size that PROMS should be using
+		private static Dictionary<string, Rectangle> dicPDFPageSize = new Dictionary<string, Rectangle>();
+		private static Dictionary<string, int> dicPDFPageSizePnts = new Dictionary<string, int>();
+		private static void BuildPDFPageSizeDic()
+		{
+			// the page size is set in the format files using a string description i.e.: <PDFPageSize PaperSize="LETTER" />
+			if (dicPDFPageSize.Count > 0) return;
+			dicPDFPageSize.Add("LETTER", PageSize.LETTER);
+			dicPDFPageSize.Add("A4", PageSize.A4);
+		}
+		private static void BuildPDFPageSizeDicPnts()
+		{
+			if (dicPDFPageSizePnts.Count > 0) return;
+			dicPDFPageSizePnts.Add("LETTER", 792);
+			dicPDFPageSizePnts.Add("A4", 842);
+			/* Paper Size in Points
+			 -------------------------
+				Letter		 612x792
+				LetterSmall	 612x792
+				Tabloid		 792x1224
+				Ledger		 1224x792
+				Legal		 612x1008
+				Statement	 396x612
+				Executive	 540x720
+				A0           2384x3371
+				A1           1685x2384
+				A2		     1190x1684
+				A3		     842x1190
+				A4		     595x842
+				A4Small		 595x842
+				A5		     420x595
+				B4		     729x1032
+				B5		     516x729
+				Envelope	 ???x???
+				Folio		 612x936
+				Quarto		 610x780
+				10x14		 720x1008	
+			 */
+		}
+		public static Rectangle UsePaperSize(string pgSize)
+		{
+			Rectangle recPageSize = PageSize.LETTER;
+			BuildPDFPageSizeDic();
+			if (pgSize != null && dicPDFPageSize.ContainsKey(pgSize.ToUpper()))
+				recPageSize = dicPDFPageSize[pgSize.ToUpper()];
+			return recPageSize;
+		}
+		public static int PaperSizePoints(string pgSize)
+		{
+			int paperPoints = 792; //LETTER paper size
+			BuildPDFPageSizeDicPnts();
+			if (pgSize != null && dicPDFPageSizePnts.ContainsKey(pgSize.ToUpper()))
+				paperPoints = dicPDFPageSizePnts[pgSize.ToUpper()];
+			return paperPoints;
+		}
+	}
+}