// --------------------------------------------------------------------------------------------------------------------

 // <copyright file="PngExporter.cs" company="OxyPlot">

 //   The MIT License (MIT)

 //

 //   Copyright (c) 2012 Oystein Bjorke

 //

 //   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.

 // </copyright>

 // <summary>

 //   The png exporter.

 // </summary>

 // --------------------------------------------------------------------------------------------------------------------

 namespace OxyPlot.WindowsForms

 {

     using System.Drawing;

     using System.Drawing.Imaging;

     using OxyPlot.WindowsForms;

     /// <summary>

     /// The png exporter.

     /// </summary>

     public static class PngExporter

     {

         /// <summary>

         /// The export.

         /// </summary>

         /// <param name="model">

         /// The model.

         /// </param>

         /// <param name="fileName">

         /// The file name.

         /// </param>

         /// <param name="width">

         /// The width.

         /// </param>

         /// <param name="height">

         /// The height.

         /// </param>

         /// <param name="background">

         /// The background.

         /// </param>

         public static void Export(PlotModel model, string fileName, int width, int height, Brush background = null)

         {

             using (var bm = new Bitmap(width, height))

             {

                 using (Graphics g = Graphics.FromImage(bm))

                 {

                     if (background != null)

                     {

                         g.FillRectangle(background, 0, 0, width, height);

                     }

                     var rc = new GraphicsRenderContext { RendersToScreen = false };

                     rc.SetGraphicsTarget(g);

                     model.Update();

                     model.Render(rc, width, height);

                     bm.Save(fileName, ImageFormat.Png);

                 }

             }

         }

     }

 }