init chart

shadowsocks-csharp/View/StatisticsStrategyConfigurationForm.cs

@@ -1,6 +1,9 @@
 using System;
 using System.Collections.Generic;
+using System.Data;
+using System.Linq;
 using System.Windows.Forms;
+using System.Windows.Forms.DataVisualization.Charting;
 using Shadowsocks.Controller;
 using Shadowsocks.Model;
 using SimpleJson;
@@ -11,6 +14,8 @@ namespace Shadowsocks.View
     {
         private readonly ShadowsocksController _controller;
         private StatisticsStrategyConfiguration _configuration;
+        private DataTable _dataTable = new DataTable();
+        private List<string> _servers; 
 
         public StatisticsStrategyConfigurationForm(ShadowsocksController controller)
         {
@@ -24,6 +29,8 @@ namespace Shadowsocks.View
 
         private void LoadConfiguration()
         {
+            var configs = _controller.GetCurrentConfiguration().configs;
+            _servers = configs.Select(server => server.FriendlyName()).ToList();
             _configuration = _controller.StatisticsConfiguration
                              ?? new StatisticsStrategyConfiguration();
             if (_configuration.Calculations == null)
@@ -40,8 +47,23 @@ namespace Shadowsocks.View
                 var calculation = new CalculationControl(kv.Key, kv.Value);
                 calculationContainer.Controls.Add(calculation);
             }
+
+            serverSelector.DataSource = _servers;
+
+            _dataTable.Columns.Add("Timestamp", typeof (DateTime));
+            _dataTable.Columns.Add("Package Loss", typeof (int));
+            _dataTable.Columns.Add("Ping", typeof (int));
+
+            StatisticsChart.Series["Package Loss"].XValueMember = "Timestamp";
+            StatisticsChart.Series["Package Loss"].YValueMembers = "PackageLoss";
+            StatisticsChart.Series["Ping"].XValueMember = "Timestamp";
+            StatisticsChart.Series["Ping"].YValueMembers = "Ping";
+            StatisticsChart.DataSource = _dataTable;
+            loadChartData(serverSelector.SelectedText);
+            StatisticsChart.DataBind();
         }
 
+
         private void CancelButton_Click(object sender, EventArgs e)
         {
             Close();
@@ -57,5 +79,21 @@ namespace Shadowsocks.View
             _controller?.UpdateStatisticsConfiguration(StatisticsEnabledCheckBox.Checked);
             Close();
         }
+
+        private void loadChartData(string serverName)
+        {
+            _dataTable.Rows.Clear();
+            List<AvailabilityStatistics.RawStatisticsData> statistics;
+            if (!_controller.availabilityStatistics.FilteredStatistics.TryGetValue(serverName, out statistics)) return;
+            foreach (var data in statistics)
+            {
+                _dataTable.Rows.Add(data.Timestamp, (float) new Random().Next() % 50, new Random().Next() % 200);
+            }
+        }
+
+        private void serverSelector_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            loadChartData(_servers[serverSelector.SelectedIndex]);
+        }
     }
 }