1 files changed, 101 insertions, 0 deletions
diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/CodeCompletion/OverloadViewer.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/CodeCompletion/OverloadViewer.cs
new file mode 100644
index 000000000..f70229a8d
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Editors/CodeCompletion/OverloadViewer.cs
@@ -0,0 +1,101 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+
+namespace Tango.Scripting.Editors.CodeCompletion
+{
+	/// <summary>
+	/// Represents a text between "Up" and "Down" buttons.
+	/// </summary>
+	public class OverloadViewer : Control
+	{
+		static OverloadViewer()
+		{
+			DefaultStyleKeyProperty.OverrideMetadata(typeof(OverloadViewer),
+			                                         new FrameworkPropertyMetadata(typeof(OverloadViewer)));
+		}
+		
+		/// <summary>
+		/// The text property.
+		/// </summary>
+		public static readonly DependencyProperty TextProperty =
+			DependencyProperty.Register("Text", typeof(string), typeof(OverloadViewer));
+		
+		/// <summary>
+		/// Gets/Sets the text between the Up and Down buttons.
+		/// </summary>
+		public string Text {
+			get { return (string)GetValue(TextProperty); }
+			set { SetValue(TextProperty, value); }
+		}
+		
+		/// <inheritdoc/>
+		public override void OnApplyTemplate()
+		{
+			base.OnApplyTemplate();
+			
+			Button upButton = (Button)this.Template.FindName("PART_UP", this);
+			upButton.Click += (sender, e) => {
+				e.Handled = true;
+				ChangeIndex(-1);
+			};
+			
+			Button downButton = (Button)this.Template.FindName("PART_DOWN", this);
+			downButton.Click += (sender, e) => {
+				e.Handled = true;
+				ChangeIndex(+1);
+			};
+		}
+		
+		/// <summary>
+		/// The ItemProvider property.
+		/// </summary>
+		public static readonly DependencyProperty ProviderProperty =
+			DependencyProperty.Register("Provider", typeof(IOverloadProvider), typeof(OverloadViewer));
+		
+		/// <summary>
+		/// Gets/Sets the item provider.
+		/// </summary>
+		public IOverloadProvider Provider {
+			get { return (IOverloadProvider)GetValue(ProviderProperty); }
+			set { SetValue(ProviderProperty, value); }
+		}
+		
+		/// <summary>
+		/// Changes the selected index.
+		/// </summary>
+		/// <param name="relativeIndexChange">The relative index change - usual values are +1 or -1.</param>
+		public void ChangeIndex(int relativeIndexChange)
+		{
+			IOverloadProvider p = this.Provider;
+			if (p != null) {
+				int newIndex = p.SelectedIndex + relativeIndexChange;
+				if (newIndex < 0)
+					newIndex = p.Count - 1;
+				if (newIndex >= p.Count)
+					newIndex = 0;
+				p.SelectedIndex = newIndex;
+			}
+		}
+	}
+	
+	sealed class CollapseIfSingleOverloadConverter : IValueConverter
+	{
+		public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+		{
+			return ((int)value < 2) ? Visibility.Collapsed : Visibility.Visible;
+		}
+		
+		public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+		{
+			throw new NotImplementedException();
+		}
+	}
+}