111 lines
3.9 KiB
C#
111 lines
3.9 KiB
C#
using System;
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using System.Text;
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using iTextSharp.text;
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using iTextSharp.text.pdf;
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using System.IO;
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using Volian.Base.Library;
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namespace Volian.Print.Library
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{
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public class pdf
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{
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public Document MyDocument { get; set; }
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public PdfWriter MyWriter { get; set; }
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public string MyFileName { get; set; }
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public PdfContentByte ContentByte => MyWriter.DirectContent;
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public pdf(string myFileName)
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{
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MyFileName = myFileName;
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MyDocument = new Document(PageSize.LETTER);
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try
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{
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MyWriter = PdfWriter.GetInstance(MyDocument, new FileStream(myFileName, FileMode.Create));
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MyWriter.SetAtLeastPdfVersion(PdfWriter.VERSION_1_7);
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}
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catch (Exception ex)
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{
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Console.WriteLine("{0} - {1}\r\n{2}", ex.GetType().Name, ex.Message, ex.StackTrace);
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}
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}
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public pdf(string myFileName, Rectangle mySize)
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{
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MyFileName = myFileName;
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MyDocument = new Document(mySize);
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try
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{
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MyWriter = PdfWriter.GetInstance(MyDocument, new FileStream(myFileName, FileMode.Create));
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MyWriter.SetAtLeastPdfVersion(PdfWriter.VERSION_1_7);
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}
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catch (Exception ex)
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{
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Console.WriteLine("{0} - {1}\r\n{2}", ex.GetType().Name, ex.Message, ex.StackTrace);
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}
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}
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public void Close() => MyDocument.Close();
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private readonly Color _WatermarkColor = Color.BLUE;
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private readonly float _WatermarkOpacity = .10F;
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public void WatermarkPageNumber(int pageNumber)
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{
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Rectangle pageSize = ContentByte.PdfWriter.PageSize; // Get page size
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BaseFont myBasefont = BaseFont.CreateFont(BaseFont.HELVETICA_BOLD, Encoding.ASCII.EncodingName, BaseFont.EMBEDDED);
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string strPage = pageNumber.ToString();
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float h = myBasefont.GetAscentPoint(strPage, 10);
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float w = myBasefont.GetWidthPoint(strPage, 10);
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float fontSizeH = 10 * pageSize.Height / h;
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float fontSizeW = 10 * pageSize.Width / w;
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float myFontSize = fontSizeH < fontSizeW ? fontSizeH : fontSizeW;
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ContentByte.SaveState();
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ContentByte.BeginText();
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ContentByte.SetPatternFill(PatternPainter);
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ContentByte.SetTextRenderingMode(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE);
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ContentByte.SetLineWidth(.5F);
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ContentByte.SetFontAndSize(myBasefont, myFontSize);// Set font and size
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ContentByte.SetColorStroke(_WatermarkColor);
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PdfGState gs2 = new PdfGState
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{
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StrokeOpacity = _WatermarkOpacity
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};
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ContentByte.SetGState(gs2);
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ContentByte.ShowTextAlignedKerned(PdfContentByte.ALIGN_CENTER, strPage, pageSize.Width / 2, 0, 0);// Draw the text
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ContentByte.EndText();
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ContentByte.FillStroke(); // Controlled by TextRenderMode above
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ContentByte.RestoreState();
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}
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private PdfPatternPainter _PatternPainter;
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public PdfPatternPainter PatternPainter
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{
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get
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{
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if (_PatternPainter == null)
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_PatternPainter = SetSquareDotPattern(2);
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return _PatternPainter;
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}
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}
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public PdfPatternPainter SetSquareDotPattern(float radius)
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{
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PdfPatternPainter myPatternPainter;
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myPatternPainter = ContentByte.CreatePattern(radius * 4, radius * 2, radius * 4, radius * 2);
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PdfGState gState = new PdfGState
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{
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FillOpacity = _WatermarkOpacity
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};
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myPatternPainter.SetGState(gState);
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myPatternPainter.SetColorFill(_WatermarkColor);
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myPatternPainter.Rectangle(0, 0, radius, radius);
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myPatternPainter.Rectangle(radius * 2, radius, radius, radius);
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myPatternPainter.Fill();
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return myPatternPainter;
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}
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public static iTextSharp.text.Font GetFont(string fontName, float fontSize, int fontStyle, Color fontColor)
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{
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// B2019-116 Use Volian.Base.Library.VlnItextFont
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// This is a generic class for dealing with iTextSharp Fonts
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// Code moved and consolidated from Volian.Print.Library, Volian PDF.Library and VG
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VlnItextFont.RegisterFont(fontName);
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return iTextSharp.text.FontFactory.GetFont(fontName, BaseFont.IDENTITY_H, BaseFont.EMBEDDED, fontSize, fontStyle, fontColor);
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}
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}
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}
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