Add a progress bar to the context menu.

NOTE: currently any update to the progress bar will also re-display the
balloon tooltip. These two things should be separated!

Refers to #2

ATxTray/AutoTxTray.cs

@@ -36,6 +36,7 @@ namespace ATxTray
 
         private static bool _txInProgress = false;
         private static long _txSize;
+        private static int _txProgressPct;
         
         private readonly NotifyIcon _notifyIcon = new NotifyIcon();
         private readonly Icon _tiDefault = new Icon("icon-default.ico");
@@ -51,6 +52,8 @@ namespace ATxTray
         private readonly ToolStripMenuItem _miTxProgress = new ToolStripMenuItem();
         private readonly ToolStripMenuItem _miTxEnqueue = new ToolStripMenuItem();
 
+        private readonly ToolStripProgressBar _miTxProgressBar = new ToolStripProgressBar();
+
         public AutoTxTray() {
             
             #region logging configuration
@@ -129,11 +132,19 @@ namespace ATxTray
             _miTxEnqueue.Text = @"+++ Add new directory for transfer. +++";
             _miTxEnqueue.Click += StartNewTransfer;
 
+            _miTxProgressBar.Text = @"Current Transfer Progress";
+            _miTxProgressBar.ToolTipText = _miTxProgressBar.Text;
+            _miTxProgressBar.Value = 0;
+            var size = _miTxProgressBar.Size;
+            size.Width = 300;
+            _miTxProgressBar.Size = size;
+
             _cmStrip.Items.AddRange(new ToolStripItem[] {
                 _miTitle,
                 _miSvcRunning,
                 _miSvcSuspended,
                 _miTxProgress,
+                _miTxProgressBar,
                 new ToolStripSeparator(),
                 _miTxEnqueue,
                 new ToolStripSeparator(),
@@ -225,7 +236,7 @@ namespace ATxTray
             if (age == _statusAge)
                 return;
 
-            Log.Debug("Status file was updated, trying to re-read...");
+            Log.Trace("Status file was updated, trying to re-read...");
             _statusAge = age;
             _status = ServiceStatus.Deserialize(StatusFile, _config);
         }
@@ -292,12 +303,14 @@ namespace ATxTray
 
         private void UpdateTxInProgress() {
             if (_txInProgress == _status.TransferInProgress &&
-                _txSize == _status.CurrentTransferSize)
+                _txSize == _status.CurrentTransferSize &&
+                _txProgressPct == _status.CurrentTransferPercent)
                 return;
 
             _statusChanged = true;
             _txInProgress = _status.TransferInProgress;
             _txSize = _status.CurrentTransferSize;
+            _txProgressPct = _status.CurrentTransferPercent;
             if (_txInProgress) {
                 _miTxProgress.Text = @"Transfer in progress (size: " +
                     Conv.BytesToString(_txSize) + ")";
@@ -305,11 +318,17 @@ namespace ATxTray
                 _notifyIcon.ShowBalloonTip(500, AppTitle,
                     "New transfer started (size: " +
                     Conv.BytesToString(_txSize) + ").", ToolTipIcon.Info);
+                Log.Debug("Transfer progress: {0}%", _txProgressPct);
+                _miTxProgressBar.Visible = true;
+                _miTxProgressBar.Value = _txProgressPct;
+                _miTxProgressBar.Text = _txProgressPct.ToString();
             } else {
                 _miTxProgress.Text = @"No transfer running.";
                 _miTxProgress.ResetBackColor();
                 _notifyIcon.ShowBalloonTip(500, AppTitle,
-                    "Transfer completed.", ToolTipIcon.Info);                
+                    "Transfer completed.", ToolTipIcon.Info);
+                _miTxProgressBar.Value = 0;
+                _miTxProgressBar.Visible = false;
             }
         }