MTP2.0_CSharp/Muchinfo.Common/Fx4.0/Muchinfo.ChartClient/MuchInfo.Chart/MuchInfo.Chart.Infrastructure/Helpers/TreeHelper.cs

using System.Globalization;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;

namespace MuchInfo.Chart.Infrastructure.Helpers
{
    public static class TreeHelper
    {
        public static object TemplateFindName(string name, FrameworkElement templatedParent)
        {
            return ((Control)templatedParent).Template.FindName(name, templatedParent);
        }

        /// <summary>
        /// 根据字体大小写计算宽度
        /// </summary>
        /// <param name="fontSize">Size of the font.</param>
        /// <param name="text">The text.</param>
        /// <returns>System.Double.</returns>
        public static double GetTextWidth(double fontSize, string text)
        {
            var fontFamily = new FontFamily("Verdana");
            return GetTextWidth(fontFamily, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal, fontSize, text);
        }

        /// <summary>
        /// 根据字体大小写计算宽度
        /// </summary>
        /// <param name="fontFamily">The font family.</param>
        /// <param name="fontSize">Size of the font.</param>
        /// <param name="text">The text.</param>
        /// <returns>System.Double.</returns>
        public static double GetTextWidth(FontFamily fontFamily, double fontSize, string text)
        {
            return GetTextWidth(fontFamily, FontStyles.Normal, FontWeights.Normal, FontStretches.Normal, fontSize, text);
        }

        /// <summary>
        /// 根据字体大小写计算宽度
        /// </summary>
        /// <param name="fontFamily">The font family.</param>
        /// <param name="fontStyle">The font style.</param>
        /// <param name="fontWeight">The font weight.</param>
        /// <param name="fontStretch">The font stretch.</param>
        /// <param name="fontSize">Size of the font.</param>
        /// <param name="text">The text.</param>
        /// <returns>System.Single.</returns>
        public static double GetTextWidth(FontFamily fontFamily, FontStyle fontStyle, FontWeight fontWeight, FontStretch fontStretch, double fontSize, string text)
        {
            var formattedText = new FormattedText(text,
               CultureInfo.CurrentUICulture,
               FlowDirection.LeftToRight,
               new Typeface(fontFamily, fontStyle, fontWeight, fontStretch),
               fontSize,
               Brushes.Black);
            return formattedText.Width;
        }
    }
}