add modify detector

Don't reload server if config not change.

shadowsocks-csharp/Controller/ShadowsocksController.cs

@@ -57,7 +57,7 @@ namespace Shadowsocks.Controller
 
             UpdateSystemProxy();
         }
-
+
         public Server GetCurrentServer()
         {
             return _config.GetCurrentServer();
@@ -69,9 +69,10 @@ namespace Shadowsocks.Controller
             return Configuration.Load();
         }
 
-        public void SaveServers(List<Server> servers)
+        public void SaveServers(List<Server> servers, bool noChange)
         {
             _config.configs = servers;
+            _config.noChange = noChange;
             SaveConfig(_config);
         }
 
@@ -89,6 +90,7 @@ namespace Shadowsocks.Controller
         public void ToggleShareOverLAN(bool enabled)
         {
             _config.shareOverLan = enabled;
+            _config.noChange = false;
             SaveConfig(_config);
             if (ShareOverLANStatusChanged != null)
             {
@@ -138,6 +140,10 @@ namespace Shadowsocks.Controller
         protected void SaveConfig(Configuration newConfig)
         {
             Configuration.Save(newConfig);
+            if (newConfig.noChange)
+            {
+                return;
+            }
             // some logic in configuration updated the config when saving, we need to read it again
             _config = Configuration.Load();
 

shadowsocks-csharp/View/ConfigForm.Designer.cs

@@ -434,7 +434,6 @@
             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
             this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
             this.MaximizeBox = false;
-            this.MinimizeBox = false;
             this.Name = "ConfigForm";
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
             this.Text = "Edit Servers";

shadowsocks-csharp/View/ConfigForm.cs

@@ -279,8 +279,8 @@ namespace Shadowsocks.View
             {
                 MessageBox.Show("Please add at least one server");
                 return;
-            }
-            controller.SaveServers(_modifiedConfiguration.configs);
+            }
+            controller.SaveServers(_modifiedConfiguration.configs, _modifiedConfiguration.noChange);
             this.Hide();
             ShowFirstTimeBalloon();
         }

shadowsocks-csharp/View/QRCodeForm.cs

@@ -24,12 +24,12 @@ namespace Shadowsocks.View
 
         private void GenQR(string ssconfig)
         {
-            string qrText = ssconfig;
+            string qrText = ssconfig;
             QRCode4CS.Options options = new QRCode4CS.Options();
             options.Text = qrText;
             QRCode4CS.QRCode qrCoded = null;
             bool success = false;
-            foreach (var level in new QRErrorCorrectLevel[]{QRErrorCorrectLevel.H, QRErrorCorrectLevel.Q, QRErrorCorrectLevel.M, QRErrorCorrectLevel.L})
+            foreach (var level in new QRErrorCorrectLevel[]{QRErrorCorrectLevel.H, QRErrorCorrectLevel.Q, QRErrorCorrectLevel.M, QRErrorCorrectLevel.L})
             {
                 for (int i = 3; i < 10; i++)
                 {