chap0608.cs

来自「iTextSharp」· CS 代码 · 共 78 行

using System;
using System.IO;

using iTextSharp.text;
using iTextSharp.text.pdf;

namespace iTextSharp.tutorial.Chap06
{
	public class Chap0608 
	{
    
		public Chap0608() 
		{
        
			Console.WriteLine("Chapter 6 example 8: Rotating an Image");
        
			// step 1: creation of a document-object
			Document document = new Document();
        
			try 
			{
            
				// step 2:
				// we create a writer that listens to the document
				// and directs a PDF-stream to a file
            
				PdfWriter.GetInstance(document, new FileStream("Chap0608.pdf", FileMode.Create));
            
				// step 3: we open the document
				document.Open();
            
				// step 4: we add content
				Image jpg = Image.GetInstance("myKids.jpg");
				jpg.Alignment = Image.MIDDLE_ALIGN;
				
				jpg.Rotation=((float)Math.PI / 6);
				document.Add(new Paragraph("rotate 30 degrees"));
				document.Add(jpg);
				document.NewPage();
            
				jpg.Rotation=((float)Math.PI / 4);
				document.Add(new Paragraph("rotate 45 degrees"));
				document.Add(jpg);
				document.NewPage();
            
				jpg.Rotation=((float)Math.PI / 2);
				document.Add(new Paragraph("rotate pi/2 radians"));
				document.Add(jpg);
				document.NewPage();
            
				jpg.Rotation=((float)(Math.PI * 0.75));
				document.Add(new Paragraph("rotate 135 degrees"));
				document.Add(jpg);
				document.NewPage();
            
				jpg.Rotation=((float)Math.PI);
				document.Add(new Paragraph("rotate pi radians"));
				document.Add(jpg);
				document.NewPage();
            
				jpg.Rotation=((float)(2.0 * Math.PI));
				document.Add(new Paragraph("rotate 2 x pi radians"));
				document.Add(jpg);
			}
			catch(DocumentException de) 
			{
				Console.Error.WriteLine(de.Message);
			}
			catch(IOException ioe) 
			{
				Console.Error.WriteLine(ioe.Message);
			}
        
			// step 5: we close the document
			document.Close();
		}
	}
}