项目结构调整

Others/Dragablz/Dragablz/Converters/BooleanAndToVisibilityConverter.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Globalization;
+using System.Linq;
+using System.Windows;
+using System.Windows.Data;
+
+namespace Dragablz.Converters
+{
+    public class BooleanAndToVisibilityConverter : IMultiValueConverter
+    {
+        public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)
+        {
+            if (values == null)
+                return Visibility.Collapsed;
+            
+            return values.Select(GetBool).All(b => b) 
+                ? Visibility.Visible
+                : Visibility.Collapsed;
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            return null;
+        }
+
+        private static bool GetBool(object value)
+        {
+            if (value is bool)
+            {
+                return (bool)value;
+            }
+            
+            return false;
+        }
+    }
+}

Others/Dragablz/Dragablz/Converters/EqualityToBooleanConverter.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Globalization;
+using System.Windows.Data;
+
+namespace Dragablz.Converters
+{
+    public class EqualityToBooleanConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Equals(value, parameter);
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Binding.DoNothing;
+        }
+    }
+}

Others/Dragablz/Dragablz/Converters/EqualityToVisibilityConverter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+
+namespace Dragablz.Converters
+{
+    public class EqualityToVisibilityConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Equals(value, parameter)
+                ? Visibility.Visible
+                : Visibility.Collapsed;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            return Binding.DoNothing;
+        }
+    }
+}

Others/Dragablz/Dragablz/Converters/ShowDefaultCloseButtonConverter.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace Dragablz.Converters
+{
+    public class ShowDefaultCloseButtonConverter : IMultiValueConverter
+    {
+        /// <summary>
+        /// [0] is owning tabcontrol ShowDefaultCloseButton value.
+        /// [1] is owning tabcontrol FixedHeaderCount value.
+        /// [2] is item LogicalIndex
+        /// </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)
+        {
+            return ((values[0] == DependencyProperty.UnsetValue ? false : (bool)values[0]) && 
+                    (values[2] == DependencyProperty.UnsetValue ? 0 : (int)values[2]) >= 
+                    (values[1] == DependencyProperty.UnsetValue ? 0 : (int)values[1])) ? Visibility.Visible : Visibility.Collapsed;
+        }
+
+        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)
+        {
+            return null;            
+        }
+    }
+}