Initial Commit

Charts/Isolines/AdditionalLinesRenderer.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Windows.Media;
+using System.Windows;
+using System.Windows.Data;
+using System.Diagnostics;
+
+namespace Microsoft.Research.DynamicDataDisplay.Charts.Isolines
+{
+	public class AdditionalLinesRenderer : IsolineRenderer
+	{
+		protected override void CreateUIRepresentation()
+		{
+			InvalidateVisual();
+		}
+
+		protected override void OnPlotterAttached()
+		{
+			base.OnPlotterAttached();
+
+			FrameworkElement parent = (FrameworkElement)Parent;
+			var renderer = (FrameworkElement)parent.FindName("PART_IsolineRenderer");
+
+			Binding contentBoundsBinding = new Binding { Path = new PropertyPath("(0)", Viewport2D.ContentBoundsProperty), Source = renderer };
+			SetBinding(Viewport2D.ContentBoundsProperty, contentBoundsBinding);
+			SetBinding(ViewportPanel.ViewportBoundsProperty, contentBoundsBinding);
+
+			Plotter2D.Viewport.EndPanning += Viewport_EndPanning;
+			Plotter2D.Viewport.PropertyChanged += Viewport_PropertyChanged;
+		}
+
+		void Viewport_PropertyChanged(object sender, ExtendedPropertyChangedEventArgs e)
+		{
+			if (e.PropertyName == "Visible")
+			{
+				if (Plotter2D.Viewport.PanningState == Viewport2DPanningState.NotPanning)
+					InvalidateVisual();
+			}
+		}
+
+		protected override void OnPlotterDetaching()
+		{
+			Plotter2D.Viewport.EndPanning -= Viewport_EndPanning;
+			Plotter2D.Viewport.PropertyChanged -= Viewport_PropertyChanged;
+
+			base.OnPlotterDetaching();
+		}
+
+		private void Viewport_EndPanning(object sender, EventArgs e)
+		{
+			InvalidateVisual();
+		}
+
+		protected override void OnRender(DrawingContext drawingContext)
+		{
+			if (Plotter2D == null) return;
+			if (DataSource == null) return;
+
+			var collection = (IsolineCollection)Parent.GetValue(IsolineCollectionProperty);
+			if (collection == null) return;
+
+			var bounds = ViewportPanel.GetViewportBounds(this);
+			if (bounds.IsEmpty) return;
+
+			var dc = drawingContext;
+			var strokeThickness = StrokeThickness;
+
+			var transform = Plotter2D.Transform.WithRects(bounds, new Rect(RenderSize));
+
+			//dc.DrawRectangle(null, new Pen(Brushes.Green, 2), new Rect(RenderSize));
+
+			var additionalLevels = GetAdditionalLevels(collection);
+			IsolineBuilder.DataSource = DataSource;
+			var additionalIsolineCollections = additionalLevels.Select(level =>
+			{
+				return IsolineBuilder.BuildIsoline(level);
+			});
+
+			foreach (var additionalCollection in additionalIsolineCollections)
+			{
+				RenderIsolineCollection(dc, strokeThickness, additionalCollection, transform);
+			}
+		}
+	}
+}