- Add support for filtering by category

- Break up main window into partials instead of using regions

Application/MainWindow/Timer.cs

@@ -0,0 +1,59 @@
+using FeedCenter.Properties;
+using System;
+using System.Windows.Forms;
+
+namespace FeedCenter
+{
+    public partial class MainWindow
+    {
+        private Timer _mainTimer;
+        private DateTime _lastFeedRead;
+        private DateTime _lastFeedDisplay;
+
+        private void InitializeTimer()
+        {
+            _mainTimer = new Timer { Interval = 1000 };
+            _mainTimer.Tick += HandleMainTimerTick;
+        }
+
+        private void TerminateTimer()
+        {
+            StopTimer();
+
+            _mainTimer.Dispose();
+        }
+
+        private void StartTimer()
+        {
+            _mainTimer.Start();
+        }
+
+        private void StopTimer()
+        {
+            _mainTimer.Stop();
+        }
+
+        private void HandleMainTimerTick(object sender, EventArgs e)
+        {
+            // If the background worker is busy then don't do anything
+            if (_feedReadWorker.IsBusy)
+                return;
+
+            // Stop the timer for now
+            StopTimer();
+
+            // Move to the next feed if the scroll interval has expired and the mouse isn't hovering
+            if (LinkTextList.IsMouseOver)
+                _lastFeedDisplay = DateTime.Now;
+            else if (DateTime.Now - _lastFeedDisplay >= Settings.Default.FeedScrollInterval)
+                NextFeed();
+
+            // Check to see if we should try to read the feeds
+            if (DateTime.Now - _lastFeedRead >= Settings.Default.FeedCheckInterval)
+                ReadFeeds();
+
+            // Get the timer going again
+            StartTimer();
+        }
+    }
+}