Initial Commit

Charts/ContentGraph.cs

@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows.Controls;
+using System.Windows;
+using Microsoft.Research.DynamicDataDisplay.Common;
+
+namespace Microsoft.Research.DynamicDataDisplay.Charts
+{
+	public abstract class ContentGraph : ContentControl, IPlotterElement
+	{
+		static ContentGraph()
+		{
+			EventManager.RegisterClassHandler(typeof(ContentGraph), Plotter.PlotterChangedEvent, new PlotterChangedEventHandler(OnPlotterChanged));
+		}
+
+		private static void OnPlotterChanged(object sender, PlotterChangedEventArgs e)
+		{
+			ContentGraph owner = (ContentGraph)sender;
+			owner.OnPlotterChanged(e);
+		}
+
+		private void OnPlotterChanged(PlotterChangedEventArgs e)
+		{
+			if (plotter == null && e.CurrentPlotter != null)
+			{
+				plotter = (Plotter2D)e.CurrentPlotter;
+				plotter.Viewport.PropertyChanged += Viewport_PropertyChanged;
+				OnPlotterAttached();
+			}
+			if (plotter != null && e.PreviousPlotter != null)
+			{
+				OnPlotterDetaching();
+				plotter.Viewport.PropertyChanged -= Viewport_PropertyChanged;
+				plotter = null;
+			}
+		}
+
+		#region IPlotterElement Members
+
+		private void Viewport_PropertyChanged(object sender, ExtendedPropertyChangedEventArgs e)
+		{
+			OnViewportPropertyChanged(e);
+		}
+
+		protected virtual void OnViewportPropertyChanged(ExtendedPropertyChangedEventArgs e) { }
+
+		protected virtual Panel HostPanel
+		{
+			get { return plotter.CentralGrid; }
+		}
+
+		void IPlotterElement.OnPlotterAttached(Plotter plotter)
+		{
+			this.plotter = (Plotter2D)plotter;
+			HostPanel.Children.Add(this);
+			this.plotter.Viewport.PropertyChanged += Viewport_PropertyChanged;
+
+			OnPlotterAttached();
+		}
+
+		protected virtual void OnPlotterAttached() { }
+
+		void IPlotterElement.OnPlotterDetaching(Plotter plotter)
+		{
+			OnPlotterDetaching();
+
+			this.plotter.Viewport.PropertyChanged -= Viewport_PropertyChanged;
+			HostPanel.Children.Remove(this);
+			this.plotter = null;
+		}
+
+		protected virtual void OnPlotterDetaching() { }
+
+		private Plotter2D plotter;
+		protected Plotter2D Plotter2D
+		{
+			get { return plotter; }
+		}
+
+		Plotter IPlotterElement.Plotter
+		{
+			get { return plotter; }
+		}
+
+		#endregion
+	}
+}