//******************************************************************************************************//  ChartExtensions.cs - Gbtc////  Copyright © 2016, Grid Protection Alliance.  All Rights Reserved.////  Licensed to the Grid Protection Alliance (GPA) under one or more contributor license agreements. See//  the NOTICE file distributed with this work for additional information regarding copyright ownership.//  The GPA licenses this file to you under the MIT License (MIT), the "License"; you may//  not use this file except in compliance with the License. You may obtain a copy of the License at:////      http://opensource.org/licenses/MIT////  Unless agreed to in writing, the subject software distributed under the License is distributed on an//  "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. Refer to the//  License for the specific language governing permissions and limitations.////  Code Modification History://  ----------------------------------------------------------------------------------------------------//  08/09/2016 - Stephen C. Wills//       Generated original version of source code.////****************************************************************************************************** using System;using System.Drawing;using System.IO;using System.Windows.Forms.DataVisualization.Charting; namespace GSF.Windows.Forms{    /// <summary>    /// Defines extension methods for <see cref="Chart"/>s.    /// </summary>    public static class ChartExtensions    {        /// <summary>        /// Sets the size of the chart while also setting the font size of the        /// axes and legend as well as the border width of each of the series.        /// </summary>        /// <param name="chart">The chart to be resized.</param>        /// <param name="width">The new width of the chart.</param>        /// <param name="height">The new height of the chart.</param>        /// <param name="fontRatio">The ratio of chart height to font size.</param>        /// <param name="borderRatio">The ratio of chart height to border width.</param>        public static void SetChartSize(this Chart chart, int width, int height, double fontRatio = 37.0D, double borderRatio = 480.0D)        {            int fontSize = (int)Math.Round(height / fontRatio);            int borderWidth = (int)Math.Round(height / borderRatio);             chart.Width = width;            chart.Height = height;             chart.ChartAreas[0].AxisX.LabelAutoFitMaxFontSize = fontSize;            chart.ChartAreas[0].AxisY.LabelAutoFitMaxFontSize = fontSize;            chart.ChartAreas[0].AxisX.LabelAutoFitMinFontSize = fontSize;            chart.ChartAreas[0].AxisY.LabelAutoFitMinFontSize = fontSize;            chart.ChartAreas[0].AxisX.TitleFont = new Font(chart.ChartAreas[0].AxisX.TitleFont.FontFamily, fontSize);            chart.ChartAreas[0].AxisY.TitleFont = new Font(chart.ChartAreas[0].AxisY.TitleFont.FontFamily, fontSize);            chart.Legends[0].Font = new Font(chart.Legends[0].Font.FontFamily, fontSize, FontStyle.Regular);             foreach (Series series in chart.Series)                series.BorderWidth = borderWidth;        }         /// <summary>        /// Saves the chart to a memory stream using the given image        /// <paramref name="format"/> and returns the stream, ready for reading.        /// </summary>        /// <param name="chart">The chart to be saved to the stream.</param>        /// <param name="format">The format to used to save the image.</param>        /// <returns>The stream containing the chart as an image.</returns>        public static Stream ConvertToImageStream(this Chart chart, ChartImageFormat format = ChartImageFormat.Png)        {            MemoryStream stream = new MemoryStream();            chart.SaveImage(stream, format);            stream.Position = 0;            return stream;        }    }}