/Main/src/Samples/v0.2/Demo/MainWindow.xaml.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Shapes;

using Microsoft.Research.DynamicDataDisplay;

using Microsoft.Research.DynamicDataDisplay.DataSources;

using Microsoft.Research.DynamicDataDisplay.PointMarkers;

using Microsoft.Research.DynamicDataDisplay.Charts;

using Microsoft.Research.DynamicDataDisplay.ViewportConstraints;



namespace Microsoft.Research.DynamicDataDisplay.Demo

{

	/// <summary>

	/// Interaction logic for MainWindow.xaml

	/// </summary>

	public partial class MainWindow : Window

	{

		public MainWindow()

		{

			InitializeComponent();



			Loaded += new RoutedEventHandler(MainWindow_Loaded);

		}



		LineGraph line;

		private void MainWindow_Loaded(object sender, RoutedEventArgs e)

		{

			// Prepare data in arrays

			const int N = 100;

			double[] x = new double[N];

			double[] y = new double[N];



			for (int i = 0; i < N; i++)

			{

				x[i] = i * 0.1;

				y[i] = Math.Cos(x[i]);

			}



			// Add data sources:

			var yDataSource = new EnumerableDataSource<double>(y);

			yDataSource.SetYMapping(Y => Y);

			yDataSource.AddMapping(ShapeElementPointMarker.ToolTipTextProperty,

				Y => string.Format("Value is {0}", Y));



			var xDataSource = new EnumerableDataSource<double>(x);

			xDataSource.SetXMapping(X => X);





			CompositeDataSource compositeDataSource = new CompositeDataSource(xDataSource, yDataSource);



			Matrix m = Matrix.Identity;

			m.RotateAt(45, 10, 10);

			line = new LineGraph

			{

				Stroke = Brushes.Green,

				StrokeThickness = 2,

				DataTransform =

					//new MatrixDataTransform(m) 

				new RotateDataTransform(45.0.DegreesToRadians())

			};

			line.DataSource = compositeDataSource;

			line.AddToPlotter(plotter);



			plotter.Viewport.Constraints.Add(new PhysicalProportionsConstraint { ProportionRatio = 1 });





			// adding graph to plotter

			plotter.AddLineGraph(compositeDataSource,

				new Pen(Brushes.Goldenrod, 3),

				new SampleMarker(),

				new PenDescription("Cosine"));



			//plotter.Viewport.FitToViewRestrictions.Add(new FollowDataWidthRestriction { Width = 1 });



			plotter.PreviewKeyDown += plotter_KeyDown;

		}



		void plotter_KeyDown(object sender, KeyEventArgs e)

		{

			if ((e.Key == Key.OemPlus || e.Key == Key.OemMinus) &&

				(Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)))

			{

				double sign = e.Key == Key.OemPlus ? +1 : -1;

				RotateDataTransform transform = (RotateDataTransform)line.DataTransform;

				line.DataTransform = new RotateDataTransform(transform.Angle + sign * 0.01);



				e.Handled = true;

			}

		}

	}



	public class SampleMarker : ShapeElementPointMarker

	{

		public override UIElement CreateMarker()

		{

			Canvas result = new Canvas()

			{

				Width = 10,

				Height = Size

			};

            SetMarkerProperties(result);

			return result;

		}



        public override void SetMarkerProperties(UIElement marker)

        {

            Canvas result = (Canvas)marker;

            result.Width = Size;

            result.Height = Size;

            result.Background = Brush;

            if (ToolTipText != String.Empty)

            {

                ToolTip tt = new ToolTip();

                tt.Content = ToolTipText;

                result.ToolTip = tt;

            }

        }



		public override void SetPosition(UIElement marker, Point screenPoint)

		{

			Canvas.SetLeft(marker, screenPoint.X - Size / 2);

			Canvas.SetTop(marker, screenPoint.Y - Size / 2);

		}

	}



}