using System;
using System.Text;
using System.Xml;
using System.Drawing;
using System.Windows.Forms;
//using C1.C1Pdf;

namespace fmtxml
{
	/// <summary>
	/// Summary description for XmlToPdf.
	/// </summary>
	public class SvgToPdf
	{
		private float ConvertToPoints=72f;
		private XmlDocument xmlDoc;
		private string FileName;
		private string FilePath;
		//private C1.C1Pdf.C1PdfDocument _c1pdf;
		
		private string [] FontChoice = 
		   {"Times New Roman",
			"VESymb XXXXXX",
			"VolianDraw XXXXXX",
			"Prestige Elite Tall",
			"Courier New",
			"Arial",
			"Letter Gothic",
			"Times New Roman",
			"Letter Gothic Tall",
			"Letter Gothic Tall",
			"Gothic Ultra",
			"VolianScript"
		};
		private float LeftMargin;				//todo: define in page info
		private float VerticalOffset;			//todo: define in page info
		private bool Portrait;					//todo: define in page info

		public SvgToPdf(string path, string fname)
		{
			LeftMargin=0.5f * ConvertToPoints;	// KBR: TODO
			VerticalOffset=0.5f * ConvertToPoints;	// KBR: TODO
			Portrait = true; // KBR: TODO
			FileName = fname;
			FilePath = path;
			xmlDoc = new XmlDocument();
			XmlTextReader reader = new XmlTextReader(FilePath+"\\"+FileName);
			xmlDoc.Load(reader);
			reader.Close();
			try
			{
				GeneratePDFForFile();
			}
			catch (Exception e)
			{
				MessageBox.Show("Error processing: " + fname, e.Message);
			}
		}

		private void GeneratePDFForFile()
		{
			//_c1pdf = new C1.C1Pdf.C1PdfDocument();
			//string rootname = FileName.Substring(0,FileName.Length-4);
			//// create a pdf file with a page for each macro (i.e. macro element in xml tree), 
			//// put it into the pdf file.
			//XmlNode topnode = xmlDoc.LastChild;
			//XmlNodeList ndlist = topnode.SelectNodes("/g");
			//for (int i=0;i<topnode.ChildNodes.Count;i++)
			//{
			//    XmlNode nd = topnode.ChildNodes[i];
			//    if (nd.Name!="desc")
			//    {
			//        SvgConvertToPdf(nd);
			//        _c1pdf.NewPage();
			//    }
			//}
			//string outname = "E:\\proms.net\\genmac.xml\\testpdf\\" + rootname + ".pdf";
			//_c1pdf.Save(outname);
		}

		private string AddRTFBUI(string origStr, string bold, string underline, string italics)
		{
			if (bold==""&&underline==""&&italics=="")return origStr;
			StringBuilder sb = new StringBuilder();
			if (bold == "bold")sb.Append("{\\b");
			if (underline == "underline")sb.Append("{\\u");
			if (italics == "italics") sb.Append("{\\i");
			sb.Append(" ");
			sb.Append(origStr);
			if (bold == "bold")sb.Append("}");
			if (underline == "underline")sb.Append("}");
			if (italics == "italics") sb.Append("}");
			return sb.ToString();
		}

		private void SvgConvertToPdf(XmlNode nd)
		{
			for (int i=0; i<nd.ChildNodes.Count; i++)
			{
				XmlElement cmdele = (XmlElement) nd.ChildNodes[i];
				string cmdline = cmdele.InnerXml;
				string cmd = cmdele.Name.ToLower();
				float fstx, fsty, fex, fey = 0;
				float flw = 0;
				// temporary for testing of negative placement (x/y) values...
				XmlElement tstele = (XmlElement) nd;
				if (tstele.GetAttribute("id")=="CNUM")
				{
					LeftMargin = 100.0f;
					VerticalOffset = 100f;
				}
				Pen pn = null;
				switch (cmd)
				{
					case "rect":
						fstx = (float) System.Convert.ToDouble(cmdele.GetAttribute("x"));
						fsty = (float) System.Convert.ToDouble(cmdele.GetAttribute("y"));
						fex = (float) System.Convert.ToDouble(cmdele.GetAttribute("width"));
						fey = (float) System.Convert.ToDouble(cmdele.GetAttribute("height"));
						flw = (float) System.Convert.ToDouble(cmdele.GetAttribute("stroke-width"));
						pn = new Pen(Brushes.Black,flw);
						//KBR: TODO - storing page stuff such as portland, vertical offset, tab, etc.
						RectangleF rc = new RectangleF(LeftMargin+fstx,VerticalOffset+fsty,fex,fey);
						//_c1pdf.DrawRectangle(pn,rc);
						break;
					case "line":   // command is LINE startx, starty, endx, endy, lnwidth
						fstx = (float) System.Convert.ToDouble(cmdele.GetAttribute("x1"));
						fsty = (float) System.Convert.ToDouble(cmdele.GetAttribute("y1"));
						fex = (float) System.Convert.ToDouble(cmdele.GetAttribute("x2"));
						fey = (float) System.Convert.ToDouble(cmdele.GetAttribute("y2"));
						float flw1 = (float) System.Convert.ToDouble(cmdele.GetAttribute("stroke-width"));
						//KBR: TODO - storing page stuff such as portland, vertical offset, tab, etc.
						//					startx = portland ? (vof + cy + adjy) : (cx + tab + adjx);
						//					starty = portland ? (tab - (cx + adjx)) : (cy + vof + adjy);
						pn = new Pen(Brushes.Black,flw1);
						//KBR: TODO - move ablsolute?				
						//					if (MoveAbsolute)
						//						{tab = 0;vof = 0;}
						//_c1pdf.DrawLine(pn, LeftMargin+fstx, VerticalOffset+fsty, LeftMargin+fex, VerticalOffset+fey);
						break;
					case "text":
						fstx = (float) System.Convert.ToDouble(cmdele.GetAttribute("x"));
						fsty = (float) System.Convert.ToDouble(cmdele.GetAttribute("y"));
						int FontSize = System.Convert.ToInt32(cmdele.GetAttribute("font-size"));
						string bold = cmdele.GetAttribute("font-weight");
						string underline = cmdele.GetAttribute("text-decoration");
						string italics = cmdele.GetAttribute("font-style");
						Font myfont = new Font(cmdele.GetAttribute("font-family"),FontSize);
						rc = new Rectangle();
						//rc.Size = _c1pdf.MeasureStringRtf(cmdele.InnerText,myfont,500); // kbr todo: 500?
						rc.X = LeftMargin+fstx;
						rc.Y = VerticalOffset+fsty-FontSize;
						// add bold, underline & italics for entire object.
						string rtfout = AddRTFBUI(cmdele.InnerText,bold,underline,italics);
						//_c1pdf.DrawStringRtf(rtfout,myfont,Brushes.Black,rc);
						break;
					case "gdiadj":
						break;
					case "ellipse":
						fstx = (float) System.Convert.ToDouble(cmdele.GetAttribute("cx"));
						fsty = (float) System.Convert.ToDouble(cmdele.GetAttribute("cy"));
						fex = (float) System.Convert.ToDouble(cmdele.GetAttribute("rx"));
						fey = (float) System.Convert.ToDouble(cmdele.GetAttribute("ry"));
						flw = (float) System.Convert.ToDouble(cmdele.GetAttribute("stroke-width"));
						pn = new Pen(Brushes.Black,flw);
						//_c1pdf.DrawEllipse(pn,LeftMargin+fstx, VerticalOffset+fsty, fex, fey);
						break;
					case "image":	
						fstx = (float) System.Convert.ToDouble(cmdele.GetAttribute("x"));
						fsty = (float) System.Convert.ToDouble(cmdele.GetAttribute("y"));
						int scale=1;
						if (cmdele.HasAttribute("scale")) scale = System.Convert.ToInt32(cmdele.GetAttribute("scale"));
						string fname = cmdele.GetAttribute("xlink:href");
						Bitmap bm = new Bitmap(fname);
						Image img = Image.FromFile(fname);
						rc = new RectangleF();
						rc.Height = (((img.Height*scale)*4.8f)/1440f)*72f;
						rc.Width = (((img.Width*scale)*4.8f)/1440f)*72f;
						rc.X = LeftMargin+fstx;
						rc.Y = VerticalOffset+fsty;
						//_c1pdf.DrawImage(img, rc, ContentAlignment.MiddleCenter, ImageSizeModeEnum.Scale);
						break;
					case "absolute":
						break;
					default:
						break;
				}
			}
		}
	}
}