using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using iTextSharp.text.pdf;
using iTextSharp.text;
using VEPROMS.CSLA.Library;


namespace Volian.Print.Library
{
	public partial class vlnBox : vlnPrintObject
	{
		private int _LineType;  /* how to represent?? */
		private System.Drawing.Color _Color;
		public System.Drawing.Color Color
		{
			get { return _Color; }
			set { _Color = value; }
		}
		private Box _MyBox;

		public Box MyBox
		{
			get { return _MyBox; }
			set { _MyBox = value; }
		}
		// the following two fields are used if 'boxed' step, thus
		// no 'Box' was defined in format file.
		public string DefBox = null;
		public float DefEnd = 0;
		public vlnBox()
		{
		}
		public vlnBox(vlnParagraph paragraph)
		{
		}
		public const string BoxThin = "\x2510.\x2500.\x250c.\x2502. . .\x2518.\x2514. .\x2500. . ";
		const string BoxThick = "\x2584.\x2584.\x2584.\x2588. . .\x2580.\x2580. .\x2580. . ";
		public override float ToPdf(PdfContentByte cb, float yPageStart, float yTopMargin, float yBottomMargin)
		{
			cb.SaveState();
			VlnSvgPageHelper _MyPageHelper = cb.PdfWriter.PageEvent as VlnSvgPageHelper;
			PdfLayer textLayer = _MyPageHelper == null ? null : _MyPageHelper.TextLayer;
			if (textLayer != null) cb.BeginLayer(textLayer);
			MyContentByte = cb;
			//Console.WriteLine("'{0}','{1}'", CharToAsc(MyBox.BoxStyle), MyParent.MyItemInfo.ShortPath);
			float top = CalculateYOffset(yPageStart, yTopMargin) - (7*MyPageHelper.YMultiplier);
			float bottom = top - (Height * MyPageHelper.YMultiplier);
			float leftmargin = (float)MyParent.MyItemInfo.MyDocStyle.Layout.LeftMargin + 3;
			float left = (float)(MyBox.Start == null ? MyParent.MyItemInfo.MyDocStyle.Layout.LeftMargin : leftmargin + MyBox.Start);
			float right = leftmargin + (float)(MyBox.End ?? DefEnd);
			iTextSharp.text.Color boxColor = new iTextSharp.text.Color(PrintOverride.OverrideBoxColor(System.Drawing.Color.Black));
			cb.SetColorStroke(boxColor);
			if (DefBox != null)
			{
				cb.SetLineWidth(.6F);
				cb.Rectangle(left, bottom, right - left, Height * MyPageHelper.YMultiplier);
			}
			else
			{
				float lineThickness = 0;
				switch (MyBox.BoxStyle)
				{
					case BoxThin:
						lineThickness = .6F;
						break;
					case BoxThick:
						lineThickness = 6;
						break;
					default:
						// For other than OHLP/HLP. For those not matching the HLP Boxes
						throw new Exception("Missing vlnBox handler");
				}
				const float llxOffset = 3;
				cb.SetLineWidth(lineThickness);
				cb.Rectangle(left + llxOffset, bottom + (lineThickness / 2), right - left - llxOffset, (Height - lineThickness) * MyPageHelper.YMultiplier);
			}
			cb.Stroke();
			if (textLayer != null) cb.EndLayer();
			cb.RestoreState();
			return yPageStart;
		}

		private string CharToAsc(string p)
		{
			StringBuilder sb = new StringBuilder();
			foreach (char c in p)
			{
				if (c >= ' ' && c < 127) sb.Append(c);
				else sb.Append(string.Format("\\x{0:x}", (int)c));
			}
			return sb.ToString();
		}
	}
}