| 1: | using System; | |
| 2: | using System.IO; | |
| 3: | ||
| 4: | using iTextSharp.text; | |
| 5: | using iTextSharp.text.pdf; | |
| 6: | ||
| 7: | namespace iTextSharp.tutorial.Chap06 | |
| 8: | { | |
| 9: | /// <summary> | |
| 10: | /// Raw Image data: | |
| 11: | /// Uptil now all examples used images that were stored on your harddisk or that were retrieved from some webserver, | |
| 12: | /// but it is also possible to get an instance of an image using an array of bytes containing the image data | |
| 13: | /// </summary> | |
| 14: | public class Chap0609 | |
| 15: | { | |
| 16: | ||
| 17: | public Chap0609() | |
| 18: | { | |
| 19: | ||
| 20: | Console.WriteLine("Chapter 6 example 9: bytes() / Raw Image"); | |
| 21: | ||
| 22: | // step 1: creation of a document-object | |
| 23: | Document document = new Document(); | |
| 24: | ||
| 25: | try | |
| 26: | { | |
| 27: | ||
| 28: | // step 2: | |
| 29: | // we create a writer that listens to the document | |
| 30: | // and directs a PDF-stream to a file | |
| 31: | ||
| 32: | PdfWriter.GetInstance(document, new FileStream("Chap0609.pdf", FileMode.Create)); | |
| 33: | ||
| 34: | // step 3: we open the document | |
| 35: | document.Open(); | |
| 36: | ||
| 37: | // step 4: we add content (example by Paulo Soares) | |
| 38: | ||
| 39: | // creation a jpeg passed as an array of bytes to the Image | |
| 40: | FileStream rf = new FileStream("mykids.jpg", FileMode.Open, FileAccess.Read); | |
| 41: | int size = (int)rf.Length; | |
| 42: | byte[] imext = new byte[size]; | |
| 43: | rf.Read(imext, 0, size); | |
| 44: | rf.Close(); | |
| 45: | Image img1 = Image.GetInstance(imext); | |
| 46: | img1.SetAbsolutePosition(50, 500); | |
| 47: | document.Add(img1); | |
| 48: | ||
| 49: | // creation of an image of 100 x 100 pixels (x 3 bytes for the Red, Green and Blue value) | |
| 50: | byte[] data = new byte[100*100*3]; | |
| 51: | for (int k = 0; k < 100; ++k) | |
| 52: | { | |
| 53: | for (int j = 0; j < 300; j += 3) | |
| 54: | { | |
| 55: | data[k * 300 + j] = (byte)(255 * Math.Sin(j * .5 * Math.PI / 300)); | |
| 56: | data[k * 300 + j + 1] = (byte)(256 - j * 256 / 300); | |
| 57: | data[k * 300 + j + 2] = (byte)(255 * Math.Cos(k * .5 * Math.PI / 100)); | |
| 58: | } | |
| 59: | } | |
| 60: | Image img2 = Image.GetInstance(100, 100, 3, 8, data); | |
| 61: | img2.SetAbsolutePosition(200, 200); | |
| 62: | document.Add(img2); | |
| 63: | } | |
| 64: | catch(DocumentException de) | |
| 65: | { | |
| 66: | Console.Error.WriteLine(de.Message); | |
| 67: | } | |
| 68: | catch(IOException ioe) | |
| 69: | { | |
| 70: | Console.Error.WriteLine(ioe.Message); | |
| 71: | } | |
| 72: | ||
| 73: | // step 5: we close the document | |
| 74: | document.Close(); | |
| 75: | } | |
| 76: | } | |
| 77: | } |