using System;
using System.Collections.Generic;
using System.Text;
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.factories;
using Itenso.Rtf;
using Itenso.Rtf.Parser;
using Itenso.Rtf.Interpreter;
//using Itenso.Rtf.Model;
using Itenso.Rtf.Support;
using Microsoft.Win32;

namespace Volian.Print.Library
{
	public partial class PrintOverride
	{
		public static bool CompressSub = false;
		public static bool CompressSuper = false;
		private static System.Drawing.Color _TextColor = System.Drawing.Color.Empty;
		public static System.Drawing.Color TextColor
		{
			get { return _TextColor; }
			set { _TextColor = value; }
		}
		public static System.Drawing.Color OverrideTextColor(System.Drawing.Color color)
		{
			if (_TextColor == System.Drawing.Color.Empty)
				return color;
			return _TextColor;
		}
		private static System.Drawing.Color _SvgColor = System.Drawing.Color.Empty;
		public static System.Drawing.Color SvgColor
		{
			get { return _SvgColor; }
			set { _SvgColor = value; Volian.Svg.Library.Svg.OverrideColor = value; }
		}
		public static System.Drawing.Color OverrideSvgColor(System.Drawing.Color color)
		{
			if (_SvgColor == System.Drawing.Color.Empty)
				return color;
			return _SvgColor;
		}
		private static System.Drawing.Color _BoxColor = System.Drawing.Color.Empty;
		public static System.Drawing.Color BoxColor
		{
			get { return _BoxColor; }
			set { _BoxColor = value; }
		}
		public static System.Drawing.Color OverrideBoxColor(System.Drawing.Color color)
		{
			if (_BoxColor == System.Drawing.Color.Empty)
				return color;
			return _BoxColor;
		}
		private static System.Drawing.Color _ChangeBarColor = System.Drawing.Color.Empty;
		public static System.Drawing.Color ChangeBarColor
		{
			get { return _ChangeBarColor; }
			set { _ChangeBarColor = value; }
		}
		public static System.Drawing.Color OverrideChangeBarColor(System.Drawing.Color color)
		{
			if (_ChangeBarColor == System.Drawing.Color.Empty)
				return color;
			return _ChangeBarColor;
		}
		private static System.Drawing.Color _DebugColor = System.Drawing.Color.Empty;
		public static System.Drawing.Color DebugColor
		{
			get { return _DebugColor; }
			set { _DebugColor = value; }
		}
		public static System.Drawing.Color OverrideDebugColor(System.Drawing.Color color)
		{
			if (_DebugColor == System.Drawing.Color.Empty)
				return color;
			return _DebugColor;
		}
		public static void Reset()
		{
			DebugColor = System.Drawing.Color.Empty;
			TextColor = System.Drawing.Color.Empty;
			SvgColor = System.Drawing.Color.Empty;
			BoxColor = System.Drawing.Color.Empty;
			ChangeBarColor = System.Drawing.Color.Empty;
		}
	}
	public class Rtf2iTextSharp : RtfVisualVisitorBase
	{
		private IRtfDocument _RtfDoc;
		private Paragraph _MyParagraph = new Paragraph();
		private iTextSharp.text.Font _MyFont;
		//		public Rtf2iTextSharp(IRtfDocument rtfDoc, Document doc, PdfWriter writer)
		public Rtf2iTextSharp(IRtfDocument rtfDoc)
		{
			if (rtfDoc == null)
				throw new ArgumentNullException("rtfDoc");
			
			_RtfDoc = rtfDoc;
		}
		public Paragraph Convert()
		{
			_MyParagraph.Clear();
			_MyFont = null;
			foreach (IRtfVisual visual in _RtfDoc.VisualContent)
				visual.Visit(this);
			//_MyParagraph.SetLeading(0, 1);
			return _MyParagraph;
		}
		// ----------------------------------------------------------------------
		protected override void DoVisitBreak(IRtfVisualBreak visualBreak)
		{
			switch (visualBreak.BreakKind)
			{
				case RtfVisualBreakKind.Line:
					_MyParagraph.Add(Chunk.NEWLINE);
					break;
				case RtfVisualBreakKind.Page:
					break;
				case RtfVisualBreakKind.Paragraph:
					_MyParagraph.Add(Chunk.NEWLINE);
					break;
				case RtfVisualBreakKind.Section:
					break;
				default:
					break;
			}
			//_MyParagraph.Add(string.Format("<{0}>", visualBreak.BreakKind.ToString()));
		}
		protected override void DoVisitSpecial(IRtfVisualSpecialChar visualSpecialChar)
		{
			//_MyParagraph.Add(string.Format("<special {0}>", visualSpecialChar.CharKind.ToString()));
			switch (visualSpecialChar.CharKind)
			{
				case RtfVisualSpecialCharKind.Bullet:
					break;
				case RtfVisualSpecialCharKind.EmDash:
					break;
				case RtfVisualSpecialCharKind.EmSpace:
					break;
				case RtfVisualSpecialCharKind.EnDash:
					break;
				case RtfVisualSpecialCharKind.EnSpace:
					break;
				case RtfVisualSpecialCharKind.LeftDoubleQuote:
					break;
				case RtfVisualSpecialCharKind.LeftSingleQuote:
					break;
				case RtfVisualSpecialCharKind.NonBreakingHyphen:
					break;
				case RtfVisualSpecialCharKind.NonBreakingSpace:
					_MyParagraph.Add(new Chunk("\u00A0"));
					break;
				case RtfVisualSpecialCharKind.OptionalHyphen:
					break;
				case RtfVisualSpecialCharKind.ParagraphNumberBegin:
					break;
				case RtfVisualSpecialCharKind.ParagraphNumberEnd:
					break;
				case RtfVisualSpecialCharKind.QmSpace:
					break;
				case RtfVisualSpecialCharKind.RightDoubleQuote:
					break;
				case RtfVisualSpecialCharKind.RightSingleQuote:
					break;
				case RtfVisualSpecialCharKind.Tabulator:
					break;
				default:
					break;
			}
		}
		protected override void DoVisitText(IRtfVisualText visualText)
		{
			if (visualText.Format.IsHidden) return;
			iTextSharp.text.Font font = Volian.Svg.Library.VolianPdf.GetFont(visualText.Format.Font.Name, visualText.Format.FontSize,
				(visualText.Format.IsBold ? iTextSharp.text.Font.BOLD : 0) +
				(visualText.Format.IsItalic ? iTextSharp.text.Font.ITALIC : 0));
			font.Color = new iTextSharp.text.Color(PrintOverride.OverrideTextColor(visualText.Format.ForegroundColor.AsDrawingColor));
			Chunk chk = new Chunk(visualText.Text, font);
			if(visualText.Format.BackgroundColor.AsDrawingColor.ToArgb() !=  System.Drawing.Color.White.ToArgb())
				chk.SetBackground(new iTextSharp.text.Color(visualText.Format.BackgroundColor.AsDrawingColor));
			if (visualText.Format.IsStrikeThrough)
				chk.SetUnderline(font.Color, 0, 0.05F, 0, .3F, PdfContentByte.LINE_CAP_ROUND); // Relative Based upon font size
			if (visualText.Format.IsUnderline)
				chk.SetUnderline(font.Color, 0, 0.05F, 0, -.131F, PdfContentByte.LINE_CAP_ROUND); // Relative Based upon font size
			if (visualText.Format.SuperScript > 0)
			{
				chk.SetTextRise(.25F * chk.Font.Size);
				if (PrintOverride.CompressSuper) chk.Font.Size = 9;
			}
			else if (visualText.Format.SuperScript < 0)
			{
				chk.SetTextRise(-.25F * chk.Font.Size);
				if (PrintOverride.CompressSub) chk.Font.Size = 9;
			}
			else
				chk.SetTextRise(0);
			switch (visualText.Format.Alignment)
			{
				case RtfTextAlignment.Center:
					_MyParagraph.Alignment = Element.ALIGN_CENTER;
					break;
				case RtfTextAlignment.Justify:
					_MyParagraph.Alignment = Element.ALIGN_JUSTIFIED;
					break;
				case RtfTextAlignment.Left:
					_MyParagraph.Alignment = Element.ALIGN_LEFT;
					break;
				case RtfTextAlignment.Right:
					_MyParagraph.Alignment = Element.ALIGN_RIGHT;
					break;
				default:
					break;
			}
			if (_MyFont == null)
			{
				_MyFont = font;
				_MyParagraph.Font = _MyFont;
			}
			_MyParagraph.Add(chk);

		}

		private string ShowSpecialCharacters(string p)
		{
			StringBuilder sb = new StringBuilder();
			foreach (char c in p)
			{
				int i = (int)c;
				if (i < 20 || i > 127)
					sb.Append(string.Format("<{0:x}>", i));
				else
					sb.Append(c);
			}
			return sb.ToString();
		}// DoVisitText


		// ----------------------------------------------------------------------
		protected override void DoVisitImage(IRtfVisualImage visualImage)
		{
			_MyParagraph.Add(new Chunk("<Image>"));
			//WriteStartElement("rtfVisualImage");

			//WriteElementString("format", visualImage.Format.ToString());
			//WriteElementString("width", visualImage.Width.ToString());
			//WriteElementString("height", visualImage.Height.ToString());
			//WriteElementString("desiredWidth", visualImage.DesiredWidth.ToString());
			//WriteElementString("desiredHeight", visualImage.DesiredHeight.ToString());
			//WriteElementString("scaleWidthPercent", visualImage.ScaleWidthPercent.ToString());
			//WriteElementString("scaleHeightPercent", visualImage.ScaleHeightPercent.ToString());
			//WriteElementString("alignment", visualImage.Alignment.ToString());

			//WriteElementString("image", visualImage.ImageDataHex.ToString());

			//WriteEndElement();
		} // DoVisitImage

	}
}