TextFrameSample.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 System.Drawing;

namespace it.stefanochizzolini.clown.samples{
  /**
    <summary>This sample demonstrates how to obtain the actual area (frame or bounding box)
    occupied by shown text.</summary>
  */
  public class TextFrameSample
    : ISample
  {
    #region dynamic
    #region interface
    #region public
    #region ISample
    public void Run(
      SampleLoader loader
      )
    {
      // 1. Instantiate a new PDF file!
      /* NOTE: a File object is the low-level (syntactic) representation of a PDF file. */
      File file = new File();

      // 2. Get its corresponding document!
      /* NOTE: a Document object is the high-level (semantic) representation of a PDF file. */
      Document document = file.Document;

      // 3. Insert the contents into the document!
      Populate(document,loader);

      // (boilerplate metadata insertion -- ignore it)
      loader.BuildAccessories(document,this.GetType(),"Text frame","getting the actual bounding box of text shown");

      // 4. Serialize the PDF file (again, boilerplate code -- see the SampleLoader class source code)!
      loader.Serialize(file,this.GetType().Name,false);
    }
    #endregion
    #endregion

    #region private
    /**
      <summary>Populates a PDF file with contents.</summary>
    */
    private void Populate(
      Document document,
      SampleLoader loader
      )
    {
      // 1. Add the page to the document!
      Page page = new Page(document); // Instantiates the page inside the document context.
      document.Pages.Add(page); // Puts the page in the pages collection.

      // 2. Create a content builder for the page!
      PrimitiveFilter builder = new PrimitiveFilter(page);

      BlockFilter blockFilter = new BlockFilter(builder);
      blockFilter.Begin(new RectangleF(300,400,200,100),AlignmentXEnum.Left,AlignmentYEnum.Middle);
      builder.SetFont(
        new StandardType1Font(
          document,
          StandardType1Font.FamilyNameEnum.Times,
          false,
          true
          ),
        12
        );
      builder.SetFillColor(new DeviceRGBColor(115f/255,164f/255,232f/255));
      blockFilter.ShowText("showText() methods return the actual bounding box of the shown text, allowing to precisely determine its location on the page.");
      blockFilter.End();

      builder.SetStrokeColor(new DeviceRGBColor(115f/255,164f/255,232f/255));

      // 3. Inserting contents...
      // Set the font to use!
      builder.SetFont(
        new StandardType1Font(
          document,
          StandardType1Font.FamilyNameEnum.Courier,
          true,
          false
          ),
        72
        );
      builder.DrawPolygon(
        builder.ShowText(
          "Text frame",
          new PointF(150,360),
          AlignmentXEnum.Left,
          AlignmentYEnum.Middle,
          45
          )
        );
      builder.Stroke();

      builder.SetFont(
        new OpenTypeFont(
          document,
          loader.InputPath + System.IO.Path.DirectorySeparatorChar + "fonts" + System.IO.Path.DirectorySeparatorChar + "Ruritania-Outline.ttf"
          ),
        102
        );
      builder.DrawPolygon(
        builder.ShowText(
          "Text frame",
          new PointF(300,600),
          AlignmentXEnum.Center,
          AlignmentYEnum.Middle,
          -25
          )
        );
      builder.Stroke();

      // 4. Flush the contents into the page!
      builder.Flush();
    }
    #endregion
    #endregion
    #endregion
  }
}