PageTransitionSample.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.documents.interaction.navigation.page;
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 apply visual transitions to the pages of a document.</summary>
    <remarks>To watch the transition effects applied to the document, you typically have to select
    the presentation (full screen) view mode on your PDF viewer (for example Adobe Reader).</remarks>
  */
  public class PageTransitionSample
    : 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. Applying the visual transitions...
      Transition.StyleEnum[] transitionStyles = (Transition.StyleEnum[])Enum.GetValues(typeof(Transition.StyleEnum));
      int transitionStylesLength = transitionStyles.Length;
      Random random = new Random();
      foreach(Page page in document.Pages)
      {
        // Apply a transition to the page!
        page.Transition = new Transition(
          document,
          transitionStyles[random.Next(transitionStylesLength)], // NOTE: Random selection of the transition is done here just for demonstrative purposes; in real world, you would obviously choose only the appropriate enumeration constant among those available.
          .5d // Transition duration (half a second).
          );
        // Set the display time of the page on presentation!
        page.Duration = 2; // Page display duration (2 seconds).
        page.Update();
      }

      // (boilerplate metadata insertion -- ignore it)
      loader.BuildAccessories(document,this.GetType(),"Transition","applying visual transitions to pages");

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