//
// Copyright (c) 2001-2012 by PDFTron Systems Inc. All Rights Reserved.
//

using System;

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

namespace UnicodeWriteTestCS
{
	/// <summary>
	/// This example illustrates how to create Unicode text and how to embed composite fonts.
	/// </summary>
	class UnicodeWriteTest
	{
		// Note: This demo assumes that 'arialuni.ttf' is present in '/Samples/TestFiles' 
		// directory. Arial Unicode MS is about 24MB in size and it comes together with Windows and 
		// MS Office.
		// 
		// For more information about Arial Unicode MS, please consult the following Microsoft Knowledge 
		// Base Article: WD2002: General Information About the Arial Unicode MS Font
		//  http://support.microsoft.com/support/kb/articles/q287/2/47.asp
		//
		// For more information consult: 
		//    http://office.microsoft.com/search/results.aspx?Scope=DC&Query=font&CTT=6&Origin=EC010331121033
		//    http://www.microsoft.com/downloads/details.aspx?FamilyID=1F0303AE-F055-41DA-A086-A65F22CB5593
		// 
		// In case you don't have access to Arial Unicode MS you can use cyberbit.ttf 
		// (ftp://ftp.netscape.com/pub/communicator/extras/fonts/windows/) instead.
		//
		static void Main(string[] args)
		{
			PDFNet.Initialize();

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

			try	
			{
				PDFDoc doc = new PDFDoc();

				ElementBuilder eb = new ElementBuilder();		
				ElementWriter writer = new ElementWriter();	

				// Start a new page ------------------------------------
				Page page = doc.PageCreate(new Rect(0, 0, 612, 794));

				writer.Begin(page);	// begin writing to this page

				Font fnt;
				try
				{
					// Full font embedding
					System.Drawing.Font myfont = new System.Drawing.Font("Arial Unicode MS", 12);
					fnt = Font.CreateCIDTrueTypeFont(doc, myfont, true, true);

					// To embed the font file directly use:
					// fnt = Font.CreateCIDTrueTypeFont(doc, input_path + "arialuni.ttf", true, true);

					// Example of font substitution
					// fnt = Font.CreateCIDTrueTypeFont(doc, input_path + "arialuni.ttf", false);
				}
				catch (PDFNetException e)
				{
					Console.WriteLine(e.Message);
					Console.WriteLine();
					
					Console.WriteLine("'arialuni.ttf' font file was not found in 'Samples/TestFiles' directory.");
					PDFNet.Terminate();
					return;
				}
				
				Element element = eb.CreateTextBegin(fnt, 1);
				element.SetTextMatrix(10, 0, 0, 10, 50, 600);
				element.GetGState().SetLeading(2);		 // Set the spacing between lines
				writer.WriteElement(element);

				// Hello World!!!
				string hello = "Hello World!";
				writer.WriteElement(eb.CreateUnicodeTextRun(hello));
				writer.WriteElement(eb.CreateTextNewLine());

				// Latin
				char[] latin = {   
					'a', 'A', 'b', 'B', 'c', 'C', 'd', 'D', '\x45', '\x0046', '\x00C0', 
					'\x00C1', '\x00C2', '\x0143', '\x0144', '\x0145', '\x0152', '1', '2' // etc.
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(latin)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Greek
				char[] greek = {   
					(char)0x039E, (char)0x039F, (char)0x03A0, (char)0x03A1, (char)0x03A3,
					(char)0x03A6, (char)0x03A8, (char)0x03A9  // etc.
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(greek)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Cyrillic
				char[] cyrillic = {   
					(char)0x0409, (char)0x040A, (char)0x040B, (char)0x040C, (char)0x040E, (char)0x040F, (char)0x0410, (char)0x0411,
					(char)0x0412, (char)0x0413, (char)0x0414, (char)0x0415, (char)0x0416, (char)0x0417, (char)0x0418, (char)0x0419 // etc.
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(cyrillic)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Hebrew
				char[] hebrew = {
					(char)0x05D0, (char)0x05D1, (char)0x05D3, (char)0x05D3, (char)0x05D4, (char)0x05D5, (char)0x05D6, (char)0x05D7, (char)0x05D8, 
					(char)0x05D9, (char)0x05DA, (char)0x05DB, (char)0x05DC, (char)0x05DD, (char)0x05DE, (char)0x05DF, (char)0x05E0, (char)0x05E1 // etc. 
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(hebrew)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Arabic
				char[] arabic = {
					(char)0x0624, (char)0x0625, (char)0x0626, (char)0x0627, (char)0x0628, (char)0x0629, (char)0x062A, (char)0x062B, (char)0x062C, 
					(char)0x062D, (char)0x062E, (char)0x062F, (char)0x0630, (char)0x0631, (char)0x0632, (char)0x0633, (char)0x0634, (char)0x0635 // etc. 
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(arabic)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Thai 
				char[] thai = {
					(char)0x0E01, (char)0x0E02, (char)0x0E03, (char)0x0E04, (char)0x0E05, (char)0x0E06, (char)0x0E07, (char)0x0E08, (char)0x0E09, 
					(char)0x0E0A, (char)0x0E0B, (char)0x0E0C, (char)0x0E0D, (char)0x0E0E, (char)0x0E0F, (char)0x0E10, (char)0x0E11, (char)0x0E12 // etc. 
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(thai)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Hiragana - Japanese 
				char[] hiragana = {
					(char)0x3041, (char)0x3042, (char)0x3043, (char)0x3044, (char)0x3045, (char)0x3046, (char)0x3047, (char)0x3048, (char)0x3049, 
					(char)0x304A, (char)0x304B, (char)0x304C, (char)0x304D, (char)0x304E, (char)0x304F, (char)0x3051, (char)0x3051, (char)0x3052 // etc. 
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(hiragana)));
				writer.WriteElement(eb.CreateTextNewLine());

				// CJK Unified Ideographs
				char[] cjk_uni = {
					(char)0x5841, (char)0x5842, (char)0x5843, (char)0x5844, (char)0x5845, (char)0x5846, (char)0x5847, (char)0x5848, (char)0x5849, 
					(char)0x584A, (char)0x584B, (char)0x584C, (char)0x584D, (char)0x584E, (char)0x584F, (char)0x5850, (char)0x5851, (char)0x5852 // etc. 
				};
				writer.WriteElement(eb.CreateUnicodeTextRun(new string(cjk_uni)));
				writer.WriteElement(eb.CreateTextNewLine());

				// Finish the block of text
				writer.WriteElement(eb.CreateTextEnd());		

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

				// Calling Dispose() on ElementReader/Writer/Builder can result in increased performance and lower memory consumption.
				eb.Dispose();
				writer.Dispose();

				doc.Save(output_path + "unicodewrite.pdf", SDFDoc.SaveOptions.e_remove_unused | SDFDoc.SaveOptions.e_hex_strings);
				doc.Close();

				Console.WriteLine("Done. Result saved in unicodewrite.pdf...");
			}
			catch (PDFNetException e)
			{
				Console.WriteLine(e.Message);
			}

			PDFNet.Terminate();
		}
	}
}