UI revamp

CUETools/Program.cs

@@ -4,22 +4,25 @@ using System.Windows.Forms;
 using System.IO;
 using System.Text;
 using CUETools.Processor;
+using System.Threading;
+using System.Runtime.Remoting;
+using System.Runtime.Remoting.Channels.Ipc;
 
 namespace JDP {
 	static class Program {
 		[STAThread]
 		static void Main(string[] args)
 		{
-			Application.EnableVisualStyles();
-			Application.SetCompatibleTextRenderingDefault(false);
 			if (args.Length > 1 && (args[0] == "/verify" || args[0] == "/crc" || args[0] == "/convert" || args[0] == "/fix"))
 			{
+				Application.EnableVisualStyles();
+				Application.SetCompatibleTextRenderingDefault(false);
 				frmBatch batch = new frmBatch();
 				batch.AccurateRip =
-					args[0] == "/convert" ? AccurateRipMode.VerifyAndConvert :
-					args[0] == "/fix" ? AccurateRipMode.VerifyThenConvert :
-					args[0] == "/crc" ? AccurateRipMode.VerifyPlusCRCs :
-					AccurateRipMode.Verify;
+					args[0] == "/convert" ? CUEAction.VerifyAndConvert :
+					args[0] == "/fix" ? CUEAction.VerifyThenConvert :
+					args[0] == "/crc" ? CUEAction.VerifyPlusCRCs :
+					CUEAction.Verify;
 
 				if (args.Length == 2 && args[1][0] != '@')
 					batch.InputPath = args[1];
@@ -45,10 +48,111 @@ namespace JDP {
 				Application.Run(batch);
 				return;
 			}
+
+			string myId = "BZ92759C-63Q7-444e-ADA6-E495634A493D";
+			Application.EnableVisualStyles();
+			Application.SetCompatibleTextRenderingDefault(false);
 			frmCUETools form = new frmCUETools();
-			if (args.Length == 1)
-				form.InputPath = args[0];
-			Application.Run(form);
+			CUEConfig config = new CUEConfig();
+			config.Load(new SettingsReader("CUE Tools", "settings.txt"));
+			if (!config.oneInstance || SingletonController.IamFirst(myId, new SingletonController.ReceiveDelegate(form.OnSecondCall)))
+			{
+				if (args.Length == 1)
+					form.InputPath = args[0];
+				Application.Run(form);
+			}
+			else
+			{
+				List<string> newArgs = new List<string>();
+				foreach (string arg in args)
+					newArgs.Add(Path.GetFullPath(arg));
+				SingletonController.Send(myId, newArgs.ToArray());
+			}
+			SingletonController.Cleanup();
 		}
 	}
+
+	[Serializable]
+    class SingletonController : MarshalByRefObject
+    {
+		private static IpcChannel m_IPCChannel = null;
+
+		public delegate void ReceiveDelegate(string[] args);
+
+        static private ReceiveDelegate m_Receive = null;
+        static public ReceiveDelegate Receiver
+        {
+            get
+            {
+                return m_Receive;
+            }
+            set
+            {
+                m_Receive = value;
+            }
+        }
+
+        public static bool IamFirst(string id, ReceiveDelegate r)
+        {
+            if (IamFirst(id))
+            {
+                Receiver += r;
+                return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        public static bool IamFirst(string id)
+        {
+			try
+			{
+				m_IPCChannel = new IpcChannel(id);
+			}
+			catch
+			{
+				return false;
+			}
+			System.Runtime.Remoting.Channels.ChannelServices.RegisterChannel(m_IPCChannel, false);
+			RemotingConfiguration.RegisterWellKnownServiceType(
+				typeof(SingletonController),
+				"SingletonController",
+				WellKnownObjectMode.SingleCall);
+			return true;
+		}
+
+        public static void Cleanup()
+        {
+            if (m_IPCChannel != null)
+                m_IPCChannel.StopListening(null);
+            m_IPCChannel = null;
+        }
+
+        public static void Send(string id, string[] s)
+        {
+            SingletonController ctrl;
+            IpcChannel channel = new IpcChannel();
+			System.Runtime.Remoting.Channels.ChannelServices.RegisterChannel(channel, false);
+            try
+            {
+				ctrl = (SingletonController)Activator.GetObject(typeof(SingletonController), "ipc://" + id + "/SingletonController");
+				ctrl.Receive(s);
+			}
+            catch
+            {
+				MessageBox.Show("Another instance of the application seems to be running, but not responding.",
+					"Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        public void Receive(string[] s)
+        {
+            if (m_Receive != null)
+            {
+                m_Receive(s);
+            }
+        }
+    }
 }