//
// PDFNet Copyright (c) 2001-2008 by PDFTron Systems Inc. All Rights Reserved.
//

using System;
using pdftron;
using pdftron.Common;
using pdftron.Filters;
using pdftron.SDF;
using pdftron.PDF;

namespace AddImageTestCS
{
	class AddImageTest
	{
		/// <summary>
		//-----------------------------------------------------------------------------------
		// This sample illustrates how to embed various raster image formats 
		// (e.g. TIFF, JPEG, JPEG2000, JBIG2, GIF, PNG, BMP, etc.) in a PDF document.
		//-----------------------------------------------------------------------------------
		/// </summary>
		static void Main(string[] args)
		{
			PDFNet.Initialize();
			PDFNet.SetResourcesPath("../../../../../resources");

			// Relative path to the folder containing test files.
			string input_path =  "../../../../TestFiles/";
			string output_path = "../../../../TestFiles/Output/";

			try
			{
				Console.WriteLine("-------------------------------------------------");

				PDFDoc doc = new PDFDoc();

				ElementBuilder f = new ElementBuilder();	// Used to build new Element objects
				ElementWriter writer = new ElementWriter();	// Used to write Elements to the page	
				
				Page page = doc.PageCreate();	// Start a new page 
				writer.Begin(page);				// Begin writing to this page

				// ----------------------------------------------------------
				// Embed a JPEG image to the output document. 
				Image img = Image.Create(doc, input_path + "peppers.jpg");

				// You can also directy any .NET Bitmap. The following commented-out code 
				// is equivalent to above line:
				System.Drawing.Bitmap bmp; 
				//   System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(input_path + "peppers.jpg");
				//   Image img = Image.Create(doc, bmp);

				Element element = f.CreateImage(img, new Matrix2D(200, 0, 0, 250, 50, 500));
				writer.WritePlacedElement(element);

				// ----------------------------------------------------------
				// Add a PNG image to the output file
				img = Image.Create(doc, input_path + "butterfly.png");
				element = f.CreateImage(img, new Matrix2D(img.GetImageWidth(), 0, 0, img.GetImageHeight(), 300, 500));
				writer.WritePlacedElement(element);
				
				// ----------------------------------------------------------
				// Add a GIF image to the output file
				bmp = new System.Drawing.Bitmap(input_path + "pdfnet.gif");
				img = Image.Create(doc, bmp);
				element = f.CreateImage(img, new Matrix2D(bmp.Width, 0, 0, bmp.Height, 50, 350));
				writer.WritePlacedElement(element);
				
				// ----------------------------------------------------------
				// Add a TIFF image to the output file
				bmp = new System.Drawing.Bitmap(input_path + "grayscale.tif");
				img = Image.Create(doc, bmp);
				element = f.CreateImage(img, new Matrix2D(bmp.Width, 0, 0, bmp.Height, 10, 50));
				writer.WritePlacedElement(element);

				// ----------------------------------------------------------
				// Add a BMP image to the output file
				bmp = new System.Drawing.Bitmap(input_path + "pdftron.bmp");
				img = Image.Create(doc, bmp);
				element = f.CreateImage(img, new Matrix2D(bmp.Width, 0, 0, bmp.Height, 255, 700));
				writer.WritePlacedElement(element);
				
				writer.End();	// Finish writing to the page
				doc.PagePushBack(page);


				// ----------------------------------------------------------
				// Embed a multi-page TIFF to the output file

				// Create a new page 
				page = doc.PageCreate(new Rect(0, 0, 612, 794));
				writer.Begin(page);	// Begin writing to the page

				// Embed the first TIFF page. Use JBIG2 Encoding

				// Use JBIG2 Encoding
				ObjSet objset = new ObjSet();
				Obj jbig2_hint = objset.CreateName("JBIG2");

				bmp = new System.Drawing.Bitmap(input_path + "multipage.tif");
				img = Image.Create(doc, bmp, jbig2_hint);
				element = f.CreateImage(img, new Matrix2D(612, 0, 0, 794, 0, 0));
				writer.WritePlacedElement(element);

				writer.End();  // Finish writing to the page
				doc.PagePushBack(page);

				// Embed the second TIFF frame. Use JBIG2 Encoding
				page = doc.PageCreate(); // Create a new page 
				writer.Begin(page);		 // Begin writing to this page

				// Select the current TIFF page using SelectActiveFrame
				bmp.SelectActiveFrame(System.Drawing.Imaging.FrameDimension.Page, 1);

				img = Image.Create(doc, bmp, jbig2_hint);
				element = f.CreateImage(img, new Matrix2D(612, 0, 0, 794, 0, 0));
				writer.WritePlacedElement(element);

				writer.End();  // save changes to the current page
				doc.PagePushBack(page);

				// ----------------------------------------------------------
				// Add a JPEG2000 (JP2) image to the output file

				// Create a new page 
				page = doc.PageCreate();
				writer.Begin(page);	// Begin writing to the page

				// Embed the image.
				img = Image.Create(doc, input_path + "palm.jp2");

				// Position the image on the page.
				element = f.CreateImage(img, new Matrix2D(img.GetImageWidth(), 0, 0, img.GetImageHeight(), 96, 80));
				writer.WritePlacedElement(element);

				// Write 'JPEG2000 Sample' text string under the image.
				writer.WriteElement(f.CreateTextBegin(Font.Create(doc, Font.StandardType1Font.e_times_roman), 32));
				element = f.CreateTextRun("JPEG2000 Sample");
				element.SetTextMatrix(1, 0, 0, 1, 190, 30);
				writer.WriteElement(element);
				writer.WriteElement(f.CreateTextEnd());
				
				writer.End();	// Finish writing to the page
				doc.PagePushBack(page);

				// ----------------------------------------------------------
				// The following sample illustrates how to directly embed a JPEG 
				// image in PDF without transcoding.

				page = doc.PageCreate(); // Create a new page 
				writer.Begin(page);		 // Begin writing to the page

				bmp = new System.Drawing.Bitmap(input_path + "peppers.jpg");
				StdFile file = new StdFile(input_path + "peppers.jpg", StdFile.OpenMode.e_read_mode);
				FilterReader reader = new FilterReader(file);

				img = Image.Create(doc, reader, 
					bmp.Width, bmp.Height, 8, ColorSpace.CreateDeviceRGB(),
					Image.InputFilter.e_jpeg); // the format of the input data stream
				file.Close();

				element = f.CreateImage(img, new Matrix2D(bmp.Width*1.4, 0, 0, bmp.Height*1.4, 0, 0));
				writer.WritePlacedElement(element);
				file.Close();
                
				writer.End();  // save changes to the current page
				doc.PagePushBack(page);

				doc.Save(output_path + "addimage.pdf", SDFDoc.SaveOptions.e_linearized);
				Console.WriteLine("Done. Result saved in addimage.pdf...");

				doc.Close();
			}
			catch (PDFNetException e)
			{
				Console.WriteLine(e.Message);
			}

			PDFNet.Terminate();
		}
	}
}