Switch to submodules, support multiple patterns, add options dialog, add license and initial readme

Options/WindowPatternsOptionsPanel.xaml.cs

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+using System.Linq;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace WorkIndicator.Options
+{
+    public partial class WindowPatternsOptionsPanel
+    {
+        public WindowPatternsOptionsPanel()
+        {
+            InitializeComponent();
+        }
+
+        private WindowPatterns WindowPatterns => Data as WindowPatterns;
+
+        public override void LoadPanel(object data)
+        {
+            base.LoadPanel(data);
+
+            WindowPatternsGrid.ItemsSource = WindowPatterns;
+
+            WindowPatternsGrid.SelectedItem = WindowPatterns.FirstOrDefault();
+            SetButtonStates();
+        }
+
+        public override bool ValidatePanel()
+        {
+            return true;
+        }
+
+        public override void SavePanel()
+        {
+
+        }
+
+        public override string CategoryName => Properties.Resources.OptionCategory_WindowPatterns;
+
+        private void SetButtonStates()
+        {
+            EditWindowPatternButton.IsEnabled = (WindowPatternsGrid.SelectedItems.Count == 1);
+            DeleteWindowPatternButton.IsEnabled = (WindowPatternsGrid.SelectedItems.Count > 0);
+        }
+
+        private void AddWindowPattern()
+        {
+            var windowPattern = new WindowPattern();
+
+            var windowPatternWindow = new WindowPatternWindow();
+
+            var result = windowPatternWindow.Display(windowPattern, Window.GetWindow(this));
+
+            if (result.HasValue && result.Value)
+            {
+                WindowPatterns.Add(windowPattern);
+
+                WindowPatternsGrid.SelectedItem = windowPattern;
+
+                SetButtonStates();
+            }
+        }
+
+        private void EditSelectedWindowPattern()
+        {
+            if (WindowPatternsGrid.SelectedItem == null)
+                return;
+
+            var windowPattern = WindowPatternsGrid.SelectedItem as WindowPattern;
+
+            var windowPatternWindow = new WindowPatternWindow();
+
+            windowPatternWindow.Display(windowPattern, Window.GetWindow(this));
+        }
+
+        private void DeleteSelectedWindowPattern()
+        {
+            var windowPattern = WindowPatternsGrid.SelectedItem as WindowPattern;
+            var index = WindowPatternsGrid.SelectedIndex;
+
+            WindowPatterns.Remove(windowPattern);
+
+            if (WindowPatternsGrid.Items.Count == index)
+                WindowPatternsGrid.SelectedIndex = WindowPatternsGrid.Items.Count - 1;
+            else if (WindowPatternsGrid.Items.Count >= index)
+                WindowPatternsGrid.SelectedIndex = index;
+
+            SetButtonStates();
+        }
+
+        private void HandleAddWindowPatternButtonClick(object sender, RoutedEventArgs e)
+        {
+            AddWindowPattern();
+        }
+
+        private void HandleEditWindowPatternButtonClick(object sender, RoutedEventArgs e)
+        {
+            EditSelectedWindowPattern();
+        }
+
+        private void HandleDeleteWindowPatternButtonClick(object sender, RoutedEventArgs e)
+        {
+            DeleteSelectedWindowPattern();
+        }
+
+        private void HandleWindowPatternsSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            SetButtonStates();
+        }
+
+        private void HandleWindowPatternsDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
+        {
+            EditSelectedWindowPattern();
+        }
+    }
+}