/Main/src/Samples/v0.2/CurrencyExchangeSample/Window1.xaml.cs

 1using System;
 2using System.Collections.Generic;
 3using System.Linq;
 4using System.Text;
 5using System.Windows;
 6using System.Windows.Controls;
 7using System.Windows.Data;
 8using System.Windows.Documents;
 9using System.Windows.Input;
10using System.Windows.Media;
11using System.Windows.Media.Imaging;
12using System.Windows.Navigation;
13using System.Windows.Shapes;
14using System.IO;
15using Microsoft.Research.DynamicDataDisplay;
16using Microsoft.Research.DynamicDataDisplay.DataSources;
17using System.Globalization;
18using System.Reflection;
19
20namespace CurrencyExchangeSample
21{
22	/// <summary>
23	/// Interaction logic for Window1.xaml
24	/// </summary>
25	public partial class Window1 : Window
26	{
27		public Window1()
28		{
29			InitializeComponent();
30
31			Loaded += new RoutedEventHandler(Window1_Loaded);
32		}
33
34		List<CurrencyInfo> usd;
35		List<CurrencyInfo> eur;
36		List<CurrencyInfo> gbp;
37		List<CurrencyInfo> jpy;
38		private void Window1_Loaded(object sender, RoutedEventArgs e)
39		{
40			Assembly assembly = Assembly.GetExecutingAssembly();
41
42			usd = LoadCurrencyRates("usd.txt");
43			eur = LoadCurrencyRates("eur.txt");
44			gbp = LoadCurrencyRates("gbp.txt");
45			jpy = LoadCurrencyRates("jpy.txt");
46
47			Color[] colors = ColorHelper.CreateRandomColors(4);
48			plotter.AddLineGraph(CreateCurrencyDataSource(usd), colors[0], 1, "RUB / $");
49			plotter.AddLineGraph(CreateCurrencyDataSource(eur), colors[1], 1, "RUB / €");
50			plotter.AddLineGraph(CreateCurrencyDataSource(gbp), colors[2], 1, "RUB / £");
51			plotter.AddLineGraph(CreateCurrencyDataSource(jpy), colors[3], 1, "RUB / ¥");
52		}
53
54		private EnumerableDataSource<CurrencyInfo> CreateCurrencyDataSource(List<CurrencyInfo> rates)
55		{
56			EnumerableDataSource<CurrencyInfo> ds = new EnumerableDataSource<CurrencyInfo>(rates);
57			ds.SetXMapping(ci => dateAxis.ConvertToDouble(ci.Date));
58			ds.SetYMapping(ci => ci.Rate);
59			return ds;
60		}
61
62		private static List<CurrencyInfo> LoadCurrencyRates(string fileName)
63		{
64			var assembly = Assembly.GetExecutingAssembly();
65			using (Stream resourceStream = assembly.GetManifestResourceStream("CurrencyExchangeSample." + fileName))
66			{
67				using (StreamReader reader = new StreamReader(resourceStream))
68				{
69					var strings = reader.ReadToEnd().Split(new char[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
70
71					var res = new List<CurrencyInfo>(strings.Length - 1);
72					for (int i = 1; i < strings.Length; i++)
73					{
74						string line = strings[i];
75						string[] subLines = line.Split('\t');
76
77						DateTime date = DateTime.Parse(subLines[1]);
78						double rate = Double.Parse(subLines[5], CultureInfo.InvariantCulture);
79
80						res.Add(new CurrencyInfo { Date = date, Rate = rate });
81					}
82
83					return res;
84				}
85			}
86
87		}
88	}
89}