项目结构调整

Others/Dragablz/Dragablz/TabablzHeaderSizeConverter.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Globalization;
+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Media;
+
+namespace Dragablz
+{
+    /// <summary>
+    /// Provides a little help for sizing the header panel in the tab control
+    /// </summary>
+    public class TabablzHeaderSizeConverter : IMultiValueConverter
+    {        
+        public Orientation Orientation { get; set; }
+
+        /// <summary>
+        /// The first value should be the total size available size, typically the parent control size.  
+        /// The second value should be from <see cref="DragablzItemsControl.ItemsPresenterWidthProperty"/> or (height equivalent)
+        /// All additional values should be siblings sizes (width or height) which will affect (reduce) the available size.
+        /// </summary>
+        /// <param name="values"></param>
+        /// <param name="targetType"></param>
+        /// <param name="parameter"></param>
+        /// <param name="culture"></param>
+        /// <returns></returns>
+        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (values == null) throw new ArgumentNullException("values");
+
+            if (values.Length < 2) return Binding.DoNothing;
+
+            var val = values
+                .Skip(2)
+                .OfType<double>()
+                .Where(d => !double.IsInfinity(d) && !double.IsNaN(d))
+                .Aggregate(values.OfType<double>().First(), (current, diminish) => current - diminish);
+
+            var maxWidth = values.Take(2).OfType<double>().Min();
+
+            return Math.Min(Math.Max(val, 0), maxWidth);
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}