// --------------------------------------------------------------------------------------------------------------------
// <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);
                }
            }
        }

    }
}