PROMS/Volian.Print.Library/PageCount.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+using iTextSharp.text;
+using iTextSharp.text.pdf;
+using Volian.Svg.Library;
+
+namespace Volian.Print.Library
+{
+	public class PageCount
+	{
+		private bool _CanIncrement = true;
+		public bool CanIncrement
+		{
+			get { return _CanIncrement; }
+			set { _CanIncrement = value; }
+		}
+		private int Increment()
+		{
+			if (CanIncrement) Total++;
+			CanIncrement = false;
+			return Total;
+		}
+		private int _Total;
+		public int Total
+		{
+			get { return _Total; }
+			set { _Total = value; }
+		}
+		private PageCountTemplates _MyTemplates; //  (for each page that has this key)
+		internal PageCountTemplates MyTemplates
+		{
+			get 
+			{
+				if (_MyTemplates == null) _MyTemplates = new PageCountTemplates(); 
+				return _MyTemplates;
+			}
+			set 
+			{
+				_MyTemplates = value; 
+			}
+		}
+		public void DrawTemplates()
+		{
+			foreach (PageCountTemplate pct in MyTemplates)
+			{
+				string fstr = pct.Text.Replace("{OF}", _Total.ToString());
+
+				// use font from pct
+				string fontFace = pct.MyFont.Name;
+				int fontStyle = (pct.MyFont.Bold ? iTextSharp.text.Font.BOLD : 0) + (pct.MyFont.Italic ? iTextSharp.text.Font.ITALIC : 0);
+				Font itextFont = Volian.Svg.Library.Svg.GetFont(fontFace, pct.MyFont.Size, fontStyle, pct.MyColor);
+				ColumnText columnText = new ColumnText(pct.MyTemplate);
+				float textSize = itextFont.BaseFont.GetWidthPoint(fstr, pct.MyFont.Size);
+				float flly = itextFont.BaseFont.GetDescentPoint("g", pct.MyFont.Size);
+				float lead = columnText.Leading;
+				columnText.Alignment = pct.Alignment;
+				Chunk chk = new Chunk(fstr, itextFont);
+				float width = chk.GetWidthPoint();
+				// justification:
+				float left = 0;
+				float right = width * 1.01F;
+				switch (pct.Alignment)
+				{
+					case Element.ALIGN_CENTER:
+						left = -.5F * width;
+						right = .51F * width;
+						break;
+					case Element.ALIGN_RIGHT:
+						left = -1.01F * width;
+						right = 0;
+						break;
+				}
+				pct.MyTemplate.BoundingBox = new Rectangle(left, 2 * flly, right, columnText.Leading); //2*flly account for descenders
+				columnText.SetSimpleColumn(left, 0, right, columnText.Leading);
+				columnText.SetText(new Phrase(chk));
+				columnText.Go();
+			}
+		}
+		public PdfTemplate AddToTemplateList(PdfWriter pdfWriter, string text, System.Drawing.Font myFont, int alignment, System.Drawing.Color color)
+		{
+			Increment();
+			PageCountTemplate retTemplate = new PageCountTemplate(pdfWriter, text.Replace("{PAGE}",Total.ToString()), myFont, alignment, color);
+			MyTemplates.Add(retTemplate);
+			return retTemplate.MyTemplate;
+		}
+	}
+	public class PageCounts : Dictionary<string, PageCount>
+	{
+		public bool CanIncrement
+		{
+			set 
+			{
+				foreach (PageCount pc in this.Values)
+				{
+					pc.CanIncrement = value;
+				}
+			}
+		}
+		public PdfTemplate AddToTemplateList(string key, PdfWriter pdfWriter, string text, System.Drawing.Font myFont, int alignment, System.Drawing.Color color)
+		{
+			if (!this.ContainsKey(key))	this.Add(key, new PageCount());
+			return (this[key].AddToTemplateList(pdfWriter, text, myFont, alignment,color));
+		}
+		public void DrawTemplates()
+		{
+			foreach (PageCount pc in this.Values)
+			{
+				pc.DrawTemplates();
+			}
+		}
+	}
+
+	public class PageCountTemplate
+	{
+		private string _Text;
+		public string Text				// "Page 1 of {OF}"
+		{
+			get { return _Text; }
+			set { _Text = value; }
+		}
+		private System.Drawing.Font _MyFont;
+		public System.Drawing.Font MyFont
+		{
+			get { return _MyFont; }
+			set { _MyFont = value; }
+		}
+		private int _Alignment;		// iTextSharp Element.<XYZ>
+		public int Alignment
+		{
+			get { return _Alignment; }
+			set { _Alignment = value; }
+		}
+		private System.Drawing.Color _MyColor;
+		public System.Drawing.Color MyColor
+		{
+			get { return _MyColor; }
+			set { _MyColor = value; }
+		}
+		private PdfTemplate _MyTemplate;
+		public PdfTemplate MyTemplate
+		{
+			get { return _MyTemplate; }
+			set { _MyTemplate = value; }
+		}
+		public PageCountTemplate(PdfWriter pdfWriter, string text, System.Drawing.Font myFont, int alignment, System.Drawing.Color color)
+		{
+			// Create Template can be called with a small, i.e. 1, width/height because when
+			// it is actually drawn, the bounding box overrides the CreateTemplate values.
+			_MyTemplate = pdfWriter.DirectContent.CreateTemplate(1, 1);
+			_Text = text;
+			_MyFont = myFont;
+			_MyColor = color;
+			_Alignment = alignment;
+		}
+	}
+	public class PageCountTemplates : List<PageCountTemplate>
+	{
+	}
+}