moel@391: // --------------------------------------------------------------------------------------------------------------------
moel@391: // <copyright file="ConverterExtensions.cs" company="OxyPlot">
moel@391: //   The MIT License (MIT)
moel@391: //
moel@391: //   Copyright (c) 2012 Oystein Bjorke
moel@391: //
moel@391: //   Permission is hereby granted, free of charge, to any person obtaining a
moel@391: //   copy of this software and associated documentation files (the
moel@391: //   "Software"), to deal in the Software without restriction, including
moel@391: //   without limitation the rights to use, copy, modify, merge, publish,
moel@391: //   distribute, sublicense, and/or sell copies of the Software, and to
moel@391: //   permit persons to whom the Software is furnished to do so, subject to
moel@391: //   the following conditions:
moel@391: //
moel@391: //   The above copyright notice and this permission notice shall be included
moel@391: //   in all copies or substantial portions of the Software.
moel@391: //
moel@391: //   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
moel@391: //   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
moel@391: //   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
moel@391: //   IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
moel@391: //   CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
moel@391: //   TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
moel@391: //   SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
moel@391: // </copyright>
moel@391: // <summary>
moel@391: //   Extension method used to convert to/from Windows/Windows.Media classes.
moel@391: // </summary>
moel@391: // --------------------------------------------------------------------------------------------------------------------
moel@391: namespace OxyPlot.WindowsForms
moel@391: {
moel@391:     using System;
moel@391:     using System.Drawing;
moel@391:     using System.Windows.Forms;
moel@391: 
moel@391:     /// <summary>
moel@391:     /// Extension method used to convert to/from Windows/Windows.Media classes.
moel@391:     /// </summary>
moel@391:     public static class ConverterExtensions
moel@391:     {
moel@391:         /// <summary>
moel@391:         /// Calculate the distance between two points.
moel@391:         /// </summary>
moel@391:         /// <param name="p1">
moel@391:         /// The first point.
moel@391:         /// </param>
moel@391:         /// <param name="p2">
moel@391:         /// The second point.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// The distance.
moel@391:         /// </returns>
moel@391:         public static double DistanceTo(this Point p1, Point p2)
moel@391:         {
moel@391:             double dx = p1.X - p2.X;
moel@391:             double dy = p1.Y - p2.Y;
moel@391:             return Math.Sqrt((dx * dx) + (dy * dy));
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a color to a Brush.
moel@391:         /// </summary>
moel@391:         /// <param name="c">
moel@391:         /// The color.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A SolidColorBrush.
moel@391:         /// </returns>
moel@391:         public static Brush ToBrush(this OxyColor c)
moel@391:         {
moel@391:             return new SolidBrush(c.ToColor());
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts an OxyColor to a Color.
moel@391:         /// </summary>
moel@391:         /// <param name="c">
moel@391:         /// The color.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A Color.
moel@391:         /// </returns>
moel@391:         public static Color ToColor(this OxyColor c)
moel@391:         {
moel@391:             return Color.FromArgb(c.A, c.R, c.G, c.B);
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a HorizontalAlignment to a HorizontalTextAlign.
moel@391:         /// </summary>
moel@391:         /// <param name="alignment">
moel@391:         /// The alignment.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A HorizontalTextAlign.
moel@391:         /// </returns>
moel@391:         public static OxyPlot.HorizontalAlignment ToHorizontalTextAlign(this HorizontalAlignment alignment)
moel@391:         {
moel@391:             switch (alignment)
moel@391:             {
moel@391:                 case HorizontalAlignment.Center:
moel@391:                     return OxyPlot.HorizontalAlignment.Center;
moel@391:                 case HorizontalAlignment.Right:
moel@391:                     return OxyPlot.HorizontalAlignment.Right;
moel@391:                 default:
moel@391:                     return OxyPlot.HorizontalAlignment.Left;
moel@391:             }
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a Color to an OxyColor.
moel@391:         /// </summary>
moel@391:         /// <param name="color">
moel@391:         /// The color.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// An OxyColor.
moel@391:         /// </returns>
moel@391:         public static OxyColor ToOxyColor(this Color color)
moel@391:         {
moel@391:             return OxyColor.FromArgb(color.A, color.R, color.G, color.B);
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a nullable Color to an OxyColor.
moel@391:         /// </summary>
moel@391:         /// <param name="color">
moel@391:         /// The color.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// An OxyColor.
moel@391:         /// </returns>
moel@391:         public static OxyColor ToOxyColor(this Color? color)
moel@391:         {
moel@391:             return color.HasValue ? color.Value.ToOxyColor() : null;
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a Brush to an OxyColor.
moel@391:         /// </summary>
moel@391:         /// <param name="brush">
moel@391:         /// The brush.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// An oxycolor.
moel@391:         /// </returns>
moel@391:         public static OxyColor ToOxyColor(this Brush brush)
moel@391:         {
moel@391:             var scb = brush as SolidBrush;
moel@391:             return scb != null ? scb.Color.ToOxyColor() : null;
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a Thickness to an OxyThickness.
moel@391:         /// </summary>
moel@391:         /// <returns>
moel@391:         /// An OxyPlot thickness.
moel@391:         /// </returns>
moel@391:         /// <summary>
moel@391:         /// Converts a ScreenPoint to a Point.
moel@391:         /// </summary>
moel@391:         /// <param name="pt">
moel@391:         /// The screen point.
moel@391:         /// </param>
moel@391:         /// <param name="aliased">
moel@391:         /// use pixel alignment conversion if set to <c>true</c>.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A point.
moel@391:         /// </returns>
moel@391:         public static Point ToPoint(this ScreenPoint pt, bool aliased)
moel@391:         {
moel@391:             // adding 0.5 to get pixel boundary alignment, seems to work
moel@391:             // http://weblogs.asp.net/mschwarz/archive/2008/01/04/silverlight-rectangles-paths-and-line-comparison.aspx
moel@391:             // http://www.wynapse.com/Silverlight/Tutor/Silverlight_Rectangles_Paths_And_Lines_Comparison.aspx
moel@391:             if (aliased)
moel@391:             {
moel@391:                 return new Point((int)pt.X, (int)pt.Y);
moel@391:             }
moel@391: 
moel@391:             return new Point((int)Math.Round(pt.X), (int)Math.Round(pt.Y));
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts an OxyRect to a Rect.
moel@391:         /// </summary>
moel@391:         /// <param name="r">
moel@391:         /// The rectangle.
moel@391:         /// </param>
moel@391:         /// <param name="aliased">
moel@391:         /// use pixel alignment if set to <c>true</c>.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A rect.
moel@391:         /// </returns>
moel@391:         public static Rectangle ToRect(this OxyRect r, bool aliased)
moel@391:         {
moel@391:             if (aliased)
moel@391:             {
moel@391:                 var x = (int)r.Left;
moel@391:                 var y = (int)r.Top;
moel@391:                 var ri = (int)r.Right;
moel@391:                 var bo = (int)r.Bottom;
moel@391:                 return new Rectangle(x, y, ri - x, bo - y);
moel@391:             }
moel@391: 
moel@391:             return new Rectangle(
moel@391:                 (int)Math.Round(r.Left), (int)Math.Round(r.Top), (int)Math.Round(r.Width), (int)Math.Round(r.Height));
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a point to a ScreenPoint.
moel@391:         /// </summary>
moel@391:         /// <param name="pt">
moel@391:         /// The point.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A screen point.
moel@391:         /// </returns>
moel@391:         public static ScreenPoint ToScreenPoint(this Point pt)
moel@391:         {
moel@391:             return new ScreenPoint(pt.X, pt.Y);
moel@391:         }
moel@391: 
moel@391:         /// <summary>
moel@391:         /// Converts a Point array to a ScreenPoint array.
moel@391:         /// </summary>
moel@391:         /// <param name="points">
moel@391:         /// The points.
moel@391:         /// </param>
moel@391:         /// <returns>
moel@391:         /// A ScreenPoint array.
moel@391:         /// </returns>
moel@391:         public static ScreenPoint[] ToScreenPointArray(this Point[] points)
moel@391:         {
moel@391:             if (points == null)
moel@391:             {
moel@391:                 return null;
moel@391:             }
moel@391: 
moel@391:             var pts = new ScreenPoint[points.Length];
moel@391:             for (int i = 0; i < points.Length; i++)
moel@391:             {
moel@391:                 pts[i] = points[i].ToScreenPoint();
moel@391:             }
moel@391: 
moel@391:             return pts;
moel@391:         }
moel@391: 
moel@391:     }
moel@391: }