PageStampingSample.cs :  » PDF » PDF-Clown » it » stefanochizzolini » clown » samples » C# / CSharp Open Source

using it.stefanochizzolini.clown.documents;
using it.stefanochizzolini.clown.documents.contents.colorSpaces;
using it.stefanochizzolini.clown.documents.contents.composition;
using it.stefanochizzolini.clown.documents.contents.fonts;
using it.stefanochizzolini.clown.files;
using it.stefanochizzolini.clown.tools;

using System;
using System.Drawing;

namespace it.stefanochizzolini.clown.samples{
  /**
    <summary>This sample demonstrates how to simply insert (stamp) new contents on a page
    of an existing document.</summary>
    <remarks>Stamping is just one of the several ways PDF contents can be manipulated using
    PDF Clown: contents can be inserted as (raw) data chunks, mid-level content objects,
    external forms, etc.</remarks>
  */
  public class PageStampingSample
    : ISample
  {
    #region dynamic
    #region interface
    #region public
    #region ISample
    public void Run(
      SampleLoader loader
      )
    {
      // (boilerplate user choice -- ignore it)
      string filePath = loader.GetPdfFileChoice("Please select a PDF file");

      // 1. Open the PDF file!
      File file = new File(filePath);
      // Get the PDF document!
      Document document = file.Document;

      // 2. Stamp the document!
      Stamp(document);

      // (boilerplate metadata insertion -- ignore it)
      loader.BuildAccessories(document,this.GetType(),"Stamping","content stamping inside an existing page");

      // 3. Serialize the PDF file (again, boilerplate code -- see the SampleLoader class source code)!
      loader.Serialize(file,this.GetType().Name);
    }
    #endregion
    #endregion

    #region private
    private void Stamp(
      Document document
      )
    {
      // Get the first page within the document!
      Page page = document.Pages[0];

      // Instantiate a stamper associating it to the page!
      /* NOTE: The PageStamper is optimized for dealing with pages. */
      PageStamper stamper = new PageStamper(page);

      StandardType1Font font = new StandardType1Font(
        document,
        StandardType1Font.FamilyNameEnum.Courier,
        true,
        false
        );
      SizeF pageSize = page.Size.Value;
      // Stamping...
      // ...foreground.
      {
        PrimitiveFilter foreground = stamper.Foreground;
        foreground.SetFont(font,16);
        foreground.SetFillColor(new DeviceRGBColor(1, 0, 0));
        DateTime now = DateTime.Now;
        foreground.ShowText(
          now.ToString(),
          new PointF(32,32)
          );
        foreground.ShowText(
          now.ToString(),
          new PointF(
            pageSize.Width - 32,
            pageSize.Height - 32
            ),
          AlignmentXEnum.Right,
          AlignmentYEnum.Bottom,
          0
          );
      }

      // ...background.
      {
        PrimitiveFilter background = stamper.Background;
        background.SetFont(font,64);
        background.SetFillColor(new DeviceRGBColor(.5, .5, .8));
        background.ShowText(
          "PDFClown",
          new PointF(
            pageSize.Width/2,
            pageSize.Height/2
            ),
          AlignmentXEnum.Center,
          AlignmentYEnum.Middle,
          45
          );
      }

      // End the stamping!
      stamper.Flush();
    }
    #endregion
    #endregion
    #endregion
  }
}