#region PDFsharp - A .NET library for processing PDF
//
// Authors:
//   Klaus Potzesny (mailto:Klaus.Potzesny@pdfsharp.com)
//
// Copyright (c) 2005-2008 empira Software GmbH, Cologne (Germany)
//
// http://www.pdfsharp.com
// http://sourceforge.net/projects/pdfsharp
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Diagnostics;
using System.ComponentModel;
using PdfSharp.Drawing;

namespace PdfSharp.Drawing.BarCodes
{
  /// <summary>
  /// Represents an OMR code.
  /// </summary>
  public class CodeOmr : BarCode
  {
    /// <summary>
    /// initializes a new OmrCode with the given data.
    /// </summary>
    public CodeOmr(string text, XSize size, CodeDirection direction) 
      : base(text, size, direction)
    {
    }

    /// <summary>
    /// Renders the OMR code.
    /// </summary>
    protected internal override void Render(XGraphics gfx, XBrush brush, XFont font, XPoint position)
    {
      XGraphicsState state = gfx.Save();

      switch (this.direction)
      {
        case CodeDirection.RightToLeft:
          gfx.RotateAtTransform(180, position);
          break;

        case CodeDirection.TopToBottom:
          gfx.RotateAtTransform(90, position);
          break;

        case CodeDirection.BottomToTop:
          gfx.RotateAtTransform(-90, position);
          break;
      }

      //XPoint pt = center - this.size / 2;
      XPoint pt = position - CodeBase.CalcDistance(AnchorType.TopLeft, this.anchor, this.size);
      uint value;
      uint.TryParse(this.text, out value);
#if true
      // HACK: Project Wallenwein: set LK
      value |= 1;
      this.synchronizeCode = true;
#endif
      if (this.synchronizeCode)
      {
        XRect rect = new XRect(pt.x, pt.y, this.makerThickness, this.size.height);
        gfx.DrawRectangle(brush, rect);
        pt.x += 2 * this.makerDistance;
      }
      for (int idx = 0; idx < 32; idx++)
      {
        if ((value & 1) == 1)
        {
          XRect rect = new XRect(pt.x + idx * this.makerDistance, pt.y, this.makerThickness, this.size.height);
          gfx.DrawRectangle(brush, rect);
        }
        value = value >> 1;
      }
      gfx.Restore(state);
    }

    /// <summary>
    /// Gets or sets a value indicating whether a synchronize mark is rendered.
    /// </summary>
    public bool SynchronizeCode
    {
      get { return this.synchronizeCode; }
      set { this.synchronizeCode = value; }
    }
    bool synchronizeCode;

    /// <summary>
    /// Gets or sets the distance of the markers.
    /// </summary>
    public double MakerDistance
    {
      get { return this.makerDistance; }
      set { this.makerDistance = value; }
    }
    double makerDistance = 12;  // 1/6"

    /// <summary>
    /// Gets or sets the thickness of the makers.
    /// </summary>
    public double MakerThickness
    {
      get { return this.makerThickness; }
      set { this.makerThickness = value; }
    }
    double makerThickness = 1;

    ///// <summary>
    ///// Renders the mark at the given position.
    ///// </summary>
    ///// <param name="position">The mark position to render.</param>
    //private void RenderMark(int position)
    //{
    //  double yPos =  this.TopLeft.Y + this.UpperDistance + position * ToUnit(this.markDistance).Centimeter;
    //  //Center mark
    //  double xPos = this.TopLeft.X + this.Width / 2 - this.MarkWidth / 2;

    //  this.gfx.DrawLine(this.pen, xPos, yPos, xPos + this.MarkWidth, yPos);
    //}

    ///// <summary>
    ///// Distance of the marks. Default is 2/6 inch.
    ///// </summary>
    //public MarkDistance MarkDistance
    //{
    //  get { return this.markDistance; }
    //  set { this.markDistance = value; }
    //}
    //private MarkDistance markDistance = MarkDistance.Inch2_6;

    ///// <summary>
    ///// Converts a mark distance to an XUnit object.
    ///// </summary>
    ///// <param name="markDistance">The mark distance to convert.</param>
    ///// <returns>The converted mark distance.</returns>
    //public static XUnit ToUnit(MarkDistance markDistance)
    //{
    //  switch (markDistance)
    //  {
    //    case MarkDistance.Inch1_6:
    //      return XUnit.FromInch(1.0 / 6.0);
    //    case MarkDistance.Inch2_6:
    //      return XUnit.FromInch(2.0 / 6.0);
    //    case MarkDistance.Inch2_8:
    //      return XUnit.FromInch(2.0 / 8.0);
    //    default:
    //      throw new ArgumentOutOfRangeException("markDistance");
    //  }
    //}

    ///// <summary>
    ///// The upper left point of the reading zone.
    ///// </summary>
    //public XPoint TopLeft
    //{
    //  get
    //  {
    //    XPoint topLeft = this.center;
    //    topLeft.X -= this.Width;
    //    double height = this.upperDistance + this.lowerDistance;
    //    height += (this.data.Marks.Length - 1) * ToUnit(this.MarkDistance).Centimeter;
    //    topLeft.Y -= height / 2;
    //    return topLeft;
    //  }
    //}

    ///// <summary>
    ///// the upper distance from position to the first mark.
    ///// The default value is 8 / 6 inch.
    ///// </summary>
    //double UpperDistance
    //{
    //  get { return this.upperDistance; }
    //  set { this.upperDistance = value; }
    //}
    //private double upperDistance = XUnit.FromInch(8.0 / 6.0).Centimeter;

    ///// <summary>
    ///// The lower distance from the last possible mark to the end of the reading zone.
    ///// The default value is 
    ///// </summary>
    //double LowerDistance
    //{
    //  get { return this.lowerDistance; }
    //  set { this.lowerDistance = value; }
    //}
    //private double lowerDistance = XUnit.FromInch(2.0 / 6.0).Centimeter;

    ///// <summary>
    ///// Gets or sets the width of the reading zone.
    ///// Default and minimum is 3/12 inch. 
    ///// </summary>
    //public double Width
    //{
    //  get { return this.width; }
    //  set { this.width = value; }
    //}
    //double width = XUnit.FromInch(3.0 / 12.0).Centimeter;

    ///// <summary>
    ///// Gets or sets the mark width. Default is 1/2 * width.
    ///// </summary>
    //public XUnit MarkWidth
    //{
    //  get
    //  {
    //    if (this.markWidth > 0)
    //      return this.markWidth;
    //    else
    //      return this.width / 2;
    //  }
    //  set { this.markWidth = value; }
    //}
    //XUnit markWidth;

    ///// <summary>
    ///// Gets or sets the width of the mark line. Default is 1pt.
    ///// </summary>
    //public XUnit MarkLineWidth
    //{
    //  get { return this.markLineWidth; }
    //  set { this.markLineWidth = value; }
    //}
    //XUnit markLineWidth = 1;

    /// <summary>
    /// Determines whether the specified string can be used as Text for the OMR code.
    /// </summary>
    protected override void CheckCode(string text)
    {
    }
  }
}